Functional description COIL HANDLING #1

Transcription

1 DANIELI CHANGSHU METALLURGICAL EQUIPMENT AND SERVICES ESFAHAN`S MOBARAKEH STEEL COMPANY IRAN Document Nr. Revision GP4CW-NE3-A8-ES8 Job Contractual item DANIELI item 479 Title Approvals Coiling Functional description COIL HANDLING # GP4CW357 Remarks 6/4/25 Functional Description CarlevaroA QueiroloR QueiroloR Rev. Date Description Drawn Checked Approved According to law Danieli Changshu Metallurgical and Services considers this document to be a company secret and therefore prohibits any person to reproduce or disclose it in whole or part to third parties, without specific written authorization of Danieli Changshu Metallurgical and Services /38 #79259

2 DANIELIAUTOMATION OUTGOING COIL HANDLING ZONE N. 2 Table of contents 4. COIL UNLOADING COIL TRANSFER BY WALKING # UP TO LIFTING PLATFORM COIL CAR SEQUENCES COIL TRANSFER STARTING CONDITIONS AND SEQUENCES CONDITIONING SHEAR MANUAL CYCLE COIL TRACKING COIL UNLOADING FROM MAIN CONTROL DESK COIL HANDLING CONTROL STATION STRIP CONDITION CONTROL STATION INTERFACE WITH OTHER ZONES AND PACKAGES INTERFACE WITH DOWNCOILER AREA INTERFACE WITH HYDRAULIC SYSTEM INTERFACE WITH PACKAGES...44 List of Figures Fig. Coil Handling Zone N. Layout 4 Fig. 2 Walking Beam Conveyors #4 and #5 Layout 5 Fig. 3 Coil Car Automatic Cycle - part 6 Fig. 4 Coil Car Automatic Cycle - part 2 7 Fig. 5 Coil Car Automatic Cycle - part 3 Cycle stop 8 Fig. 6 Conveyors Automatic Cycle - part 23 Fig. 7 Conveyors Automatic Cycle - part 2 24 Fig. 8 Conveyors Automatic Cycle - part 3 25 Fig. 9 Conveyors Automatic Cycle - part 4 26 Fig. Conveyors Automatic Cycle - part 5 27 Fig. Conveyors Automatic Cycle - part 6 28 Fig. 2 Conveyors Automatic Cycle - part 7 29 Fig. 3 Conditioning Shear Manual Cycle - part 3 Fig. 4 Conditioning Shear Manual Cycle - part 2 32 Fig. 5 Conditioning Shear Manual Cycle - part 3 33 Fig. 6 Conditioning Shear Manual Cycle - part /38 #79259

3 DANIELIAUTOMATION OUTGOING COIL HANDLING ZONE N. 3 ZONE LAYOUT AND MAIN CHARACTERISTICS Equipment of this zone is provided to unload the coils processed from the new Downcoiler N. and to transfer them through existing strapping machines, coil scale and a marking machine before being unloaded on the storage bay. The coils before being processed by the coil strapping and labelling section can be dispatched to the Inspection line. In order to perform the above function this zone is arranged outside the downcoiler area. The mechanical layouts of the zone are reported in the following figures. Coil Handling Zone N. can deliver coil to the following coil handling sections:. Extraction section, 2. Exit Section with Walking Beam Conveyors, 3. Coil Inspection station (Please note that this section belongs to Coil Handling Zone N.2), 4. Coil Handling Machines Section (W.B, Conveyors, Coil Strapping Machines, Weighing and Marking Machines) 5. Condition Shear Section. 3/38 #79259

4 DANIELIAUTOMATION OUTGOING COIL HANDLING ZONE N. 4 Fig. Coil Handling Zone N. Layout 4/38 #79259

5 DANIELIAUTOMATION OUTGOING COIL HANDLING ZONE N. 5 Fig. 2 Walking Beam Conveyors #4 and #5 Layout Main characteristics of coils: Coil maximum O.D. mm 78 Coil nominal I.D. mm 762 Strip width mm 8 min. 56 max. Strip thickness mm.2 min. 2.5 max. Weight tons 25 5/38 #79259

6 DANIELIAUTOMATION OUTGOING COIL HANDLING ZONE N. 6 Main mechanical data: Coil Extractor to transfer the coil from the intermediate station to W.B.C. coil conveyor # Horizontal stroke Traverse speed Vertical stroke Lifting speed 385 mm 25 mm/s 7 mm 5mm/s W.B.C. Coil Conveyor # at 445mm above floor level -with five (5) coil positions - to transfer the coils from the coil extractor position to the coil lowering platform # Traversing stroke Traversing speed Lifting stroke Lifting speed 4mm 25mm/s 95mm 5 mm/s W.B.C. coil conveyor #2 at 229 mm. above floor level - with six (6) coil positions to transfer the coils from coil lowering platform # to coil lowering platform #2 Traversing stroke Traversing speed Lifting stroke Lifting speed 4mm 25mm/s 95mm 5mm/s Coil lowering platform #2 from 22mm to floor level Lowering stroke Lowering speed 229mm mm/s W.B.C. coil conveyor #3 at floor level to - with twelve (2) coil positions transfer the coils from the coil lowering platform #2 to the coil rotating platform Traversing stroke Traversing speed Lifting stroke Lifting speed 4mm 25mm/s 95mm 5mm/s (To be continued on next page) 6/38 #79259

7 DANIELIAUTOMATION OUTGOING COIL HANDLING ZONE N. 7 One coil rotating platform to rotate 9 the axis of the coils for sending them to walking beam conveyor # 5 or to coil buffer conveyor #4 Rotation 9 Rotation speed.5 turn per minute = 9 degrees per second One W.B.C. coil conveyor #4 at floor level used as buffer to transfer the coils from the rotating platform or to transfer the stored coils in the reverse direction to W.B.C. #5 No. of coil positions 5 Traversing speed. Traversing stroke Lifting stroke 25mm/s 4mm 95mm W.B.C. convey #5 at floor level to transfer the coils to the discharging position (last saddle) No. of coil positions: 2 Traversing stroke Traversing speed Lifting speed 4mm 25mm/s 95mm 5 mm/s One strip conditioning shear, including a guillotine type shear, coil opener, motorized cradle rolls to rotate the coil, idle pressure roll, marking machine for samples, crop chute, sample collecting pocket One coil circumferential strapping machine One coil radial strapping machine One coil weighing system One coil marking machine Specific operations are foreseen when the coil is on the following fixed saddles: Saddle #2: Conditioning shearing Saddle #4: Circumferential strapping Saddle #6: Radial strapping Saddle #8: Weighing and marking 7/38 #79259

8 DANIELIAUTOMATION OUTGOING COIL HANDLING ZONE N. 8 2 COIL HANDLING ZONE N. EQUIPMENT Item 35M3 Equipment: COIL EXTRACTOR AND CONVEYORS Coil Extractor W.B.C. Coil Conveyor # W.B.C. Coil Conveyor #2 Coil Lowering Platform #2 W.B.C. Coil Conveyor #3 Coil Rotating Platform #3 W.B.C. Coil Conveyor #4 W.B.C. Coil Conveyor #5 Item 35M4 Equipment:STRIP CONDITIONING SHEAR Coil Rotating Saddles Drive Shear Cutting Drive Shear Knives Clearance Adjustment Shear Frame Traverse Pressure Roll On The Coil Lifting Pressure Roll On The Shear Frame Lifting Strip Sample Marking Unit Knives Changing Platform Sample Collection Device Sample Discharging Device Item 35M4 35M42 35M43 35M44 Equipment: COIL HANDLING EQUIPMENT Circumferential Coil Strapping Machine Radial Coil Strapping Machine Coil Weighing System Coil Marking Equipment 8/38 #79259

9 DANIELIAUTOMATION OUTGOING COIL HANDLING ZONE N. 9 3 ZONE SENSORS The zone sensors are used, apart from controlling and locking functions, for the coils tracking. Each coil is followed step by step in the conveyor zone: the coil detected by the sensor in a certain station is identified by the number of steps counted from the downcoiler. Coil identification is available till the coil is discharged from the W.B.C. Conveyor #5. The number of coils stored on each conveyor is calculated, as there are not detectors in every station of the conveyors. The sensors detecting the coil presence are photocells arranged as follows: 35M23-S5 35M25-S4 35M3-S 25M3-S5 35M3-S6 35M32-S 35M32-S 35M32-S5 35M32-S6 35M33-S6 35M33-S7 35M33-S8 35M34-S 35M34-S 35M35-S 35M35-S Coil presence on the coil extractor intermediate saddle Coil presence on W.B.C. # receiving station Coil presence on W.B.C. # last station Coil presence on lowering platform # top position Coil presence on lowering platform # bottom position Coil presence on W.B.C. #2 first station Coil presence on W.B.C. #2 last station Coil presence on lowering platform #2 top position Coil presence on lowering platform #2 bottom position Coil presence on W.B.C. #3 first station Coil presence on W.B.C. #3 last station Coil presence on W.B.C. rotating platform Coil presence on W.B.C. #4 first station Coil presence on W.B.C. #4 last station Coil presence on W.B.C. #5 first station Coil presence on W.B.C. #5 last station 35M35-S2 Coil presence on W.B.C. #5 conditioning shear saddle # 2 35M35-S3 Coil presence on W.B.C. #5 circumference strapping saddle #4 35M35-S4 Coil presence on W.B.C. #5 radial strapping saddle n#6 35M35-S5 Coil presence on W.B.C. #5 marking and weighing saddle #8 9/38 #79259

10 DANIELIAUTOMATION OUTGOING COIL HANDLING ZONE N. Some TV cameras are foreseen to give the possibility to the operator to overview the operations in the most significant positions: 35M23-P 35M32-P 35M33-P 35M33-P5 35M4-P 35M4-P 35M44-P Coil Car and Coil Traverse view W.B.C. #2 view W.B.C. #3 view W.B.C. #5 Outlet view Strip Conditioning Shear view Circumference Strapping Machine view Partial Strapping Coil Marking Machine view /38 #79259

11 DANIELIAUTOMATION OUTGOING COIL HANDLING ZONE N. 4 ZONE OPERATION AND CONTROL 4. COIL UNLOADING The Coil Car cycle starts from coil car parking position or from mandrel centerline position as well. When the sequence is activated, if the Coil Car is not already at mandrel centerline, it is moved to this position in lowered configuration. Before the tail positioning is initiated, the Coil Car is moved to the mandrel centerline in lowered configuration. Then the car is lifted to partial up position under the coil, at reduced pressure to snug the final wraps on the coil. When the coil contact is detected, the lifting movement is locked and coil car switches to high pressure in order to support the coil. Tension reel mandrel is then collapsed and the Coil Car starts moving back toward the unloading saddle position. To be noted that Cradle Rolls shall be locked with the Coil Car pressing against the coil and the mandrel is at standstill and shall be unlocked at coil stripping end. While the coil car traverses away, the mandrel shall rotate slowly in a counter-clockwise direction. This prevents the centre of the coil from telescoping out when removed from the mandrel. If the coil begins to telescope during removal, the Operator may stop the cycle. This cycle can be divided as follows:. Coil Car fully lowered is moved from initial position to mandrel centerline position, 2. Coil Car lifting at reduced pressure against the coil, 3. As soon as the coil car gets in contact with the coil the lifting movement is locked and then lifting pressure is toggled to "high", 4. Mandrel is rotated to position the tail end, and then is collapsed to allow coil extraction, 5. With Coil Car locked lifted at high pressure on mandrel position and ready to support the coil, the mandrel is collapsed, 6. Coil Car starts moving away at low speed, 7. Coil car fully lifting with coil aboard, 8. Coil Car traverses to saddle position, 9. Coil Car lowers the coil onto the saddle,. Coil Car when lowered and without coil traverses back to rotation position (parking). /38 #79259

12 DANIELIAUTOMATION OUTGOING COIL HANDLING ZONE N COIL TRANSFER BY WALKING # UP TO LIFTING PLATFORM The cycle of coil extractor starts when the Coil Car has unloaded the coil on the transfer saddle and is returned to parking position. Coil extractor lifts the coil from the saddle and unloads it on the first fixed saddle of Walking Beam Conveyor #. The coils are moved in the conveyors area as follows: Conveyors usually are advanced one step every time a new coil is available in the entry zone of the conveyor and the relevant exit zone is free from coils. Platforms start to lower or rotate after a coil is available on the saddle. The conveyors and platforms are moved in sequence. Note: If the coil shall be dispatched to the Inspection Station please refer to Coil Handling Zone N.2 F.D. In a steady condition: a. Coil extractor step unloads the coil onto the W.B.C. # first saddle. b. W.B.C. step transfers the coil on the last saddle to platform, c. Platform # lowers the coil or rotates it to inspection station (see FD Coil Handling Zone N.2) d. W.B.C. #2 step brings the coil on the last saddle to platform #2 and the coil on platform # to the first saddle of W.B.C. #2. e. Platform #2 lowers the coil. Platform # is lifted. f. W.B.C. # 3 step brings the coil on the last saddle (if there is any) to the rotating platform and the coil on platform no. 2 to the first saddle of W.B.C. # 3. g. The rotating platform rotates the coil 9 to face W.B.C. # 5. Platform no. 2 is lifted. h. W.B.C. # 5 brings the coil on the saddle before the last saddle (if there is any) to discharging position (where it is taken by crane or fork lift) and the coil on the rotating platform to the first saddle of W.B.C. # 5 i. The rotating platform rotates 9 to face W.B.C. # 3. The condition to transfer a coil from a conveyor to the next platform is that the platform has to be available (no coil) and properly positioned (up/facing the inlet conveyor). The condition to take away a coil from a platform is that the platform has to be properly positioned (down/facing the outlet conveyor). 2/38 #79259

13 DANIELIAUTOMATION OUTGOING COIL HANDLING ZONE N. 3 If a coil gets the rotating platform position but it cannot be discharged onto W.B.C. # 5 owing to an interlock to W.B.C. #5, the coil is taken away from rotating platform by W.B.C. # 4 and momentary stored on W.B.C. conveyor # 4 saddles. 3/38 #79259

14 DANIELIAUTOMATION OUTGOING COIL HANDLING ZONE N. 4 If there is no coil presence on platform #2 or on the last saddle of W.B.C. #3 the coil can be advanced from W.B.C. # 4 to W.B.C. #5. 2) The quantity of coils stored on each W.B.C. conveyors has to be computed; the W.B.C. conveyor can start a coil transfer cycle even if there is a coil on any saddle of the W.B.C. itself. The coils already positioned on the conveyors seats or platforms are advanced one step every time the starting conditions are fulfilled. The coil transfer from the intermediate saddle to W.B.C. # has the priority on any step of any W.B.C. a. Coil extractor step brings the coil from the intermediate saddle to W.B.C. # first saddle. b. W.B.C. # step brings the coil on last saddle of W.B.C. # to platform no. and the coil on any saddle of W.B.C. # to the next saddle. c. Platform no. is lowered if any coil is charged d. W.B.C. #2 step brings the coil on the last saddle of W.B.C. #2 to platform no. 2 and the coil on platform no. or on any saddle of W.B.C. #2 to the next saddle of W.B.C. #2. Platform # lifting. e. Platform #2 is lowering if any coil is charged f. W.B.C. #3 step brings the coil from the last saddle of W.B.C. #3 to rotating platform and the coil on platform #2 or any saddle of W.B.C. #3 to the next saddle of W.B.C. #3. g. The rotating platform rotates 9 to face W.B: #3 if any coil is charged h. W.B.C. #5 step brings the coil to the last saddle (discharging saddle) and the coil on the rotating platform or any saddle of W.B.C. #5 to the next saddle on W.B.C. conveyor #5. When a conveyor is empty and the saddle at the entry of the conveyor is empty, it stays at standstill. When a coil is detected on the saddle 2 of W.B.C. #5 the manual cycle relevant to the conditioning shear can start if required. The following man operations have to be performed on conditioning saddle:. Pressure roll closing, 2. Strip head positioning through coil rotation by the motorized cradle rollers, 3. Coil opener positioning, 4. Strip head advancing through the shear and positioning at marking and cut length, 5. Sample marking, 6. Sample cutting, 7. Strip rewinding, 8. Pressure roll opening and coil opener retraction. 4/38 #79259

15 DANIELIAUTOMATION OUTGOING COIL HANDLING ZONE N. 5 Till cycle is over the W.B.C. #5 cannot initiate a coil transfer step. When a coil is detected on saddle 4 of W.B.C. #5 the circumferential strapping cycle starts. W.B.C. C. #5 cannot initiate a coil transfer step until strapping is over. When the coil is detected on the saddle 6 of W.B.C. #5 the radial strapping cycle starts. W.B.C. # 5 cannot initiate a coil transfer step until the strapping is over. When a coil is detected on saddle 8 of W.B.C. #5 the marking and weighing cycles start. W.B.C. #5 can not initiate a coil transfer until marking and weighing are over. 5/38 #79259

16 DANIELIAUTOMATION OUTGOING COIL HANDLING ZONE N. 6 5 ZONE SEQUENCES 5. COIL CAR SEQUENCES This sequence is linked to the Strip tail positioning of Downcoiler N. Zone. Fig. 3 Coil Car Automatic Cycle - part 6/38 #79259

17 DANIELIAUTOMATION OUTGOING COIL HANDLING ZONE N. 7 Fig. 4 Coil Car Automatic Cycle - part 2 7/38 #79259

18 DANIELIAUTOMATION OUTGOING COIL HANDLING ZONE N. 8 6A 6B MANDREL ROTATION Idle speed Closing to preset W.R.-2-3 GAP Car traverse towards saddle Off MANDREL LATERAL COOLING Stop at saddle position COIL CAR TRAVERSE NO COIL ON SADDLE COIL CAR AT SADDLE POSITION COIL EXTRACTOR OUT OF INTERFERENCE WITH COIL CAR Lowering COIL CAR LIFTING COIL CAR DOWN Stop To coiler COIL CAR TRANSFER COIL CAR AT COILER Feeding low pressure COIL CAR LIFTING PRESSURE Fig. 5 Coil Car Automatic Cycle - part 3 Cycle stop 8/38 #79259

19 DANIELIAUTOMATION OUTGOING COIL HANDLING ZONE N COIL TRANSFER STARTING CONDITIONS AND SEQUENCES The following starting conditions shall be fulfilled to transfer the coil by Walking Beam Conveyors and lifting platforms: (Please also refer to the attached flow chats shown in the next pages) Coil transfer forward cycle by coil extractor ) Coil presence on intermediate takeover saddle. 2) Coil extractor at home ( retracted and down ) 3) W.B.C. at home ( intermediate position and down ) 4) Coil car down and out of interference with coil transfer 5) No coil presence on W.B.C. # first seat Coil transfer forward cycle by W.B.C. # ) Platform # down 2) No coil on platform # down 3) Coil detected on platform # down 4) Platform # up 5) No coil on platform # up 6) Coil detected on platform # up 7) Coil presence on W.B.C. # last saddle 2) Coil transfer in the retracted position Coil Lowering By Platform # 4) Platform # up 6) Coil detected on platform # up 2) W.B.C. #2 at home 3) W.B.C. # at home 9/38 #79259

20 DANIELIAUTOMATION OUTGOING COIL HANDLING ZONE N. 2 Platform # lifting no coil 3) W.B.C. # at home 2) W.B.C. # 2 at home bottom ) Platform # down 2) No coil on platform # down Coil rotation by platform # towards Inspection Station (please refer to Coil Handling Zone N.2) Coil detection on rotating platform and platform lifted up, Coil transfer car at home position, W.B.C. # at home W.B.C. #2 forward cycle 3) Coil platform#2 down 32) Coil platform#2 up 33) No coil detected on platform #2 down 34) Coil detected on platform #2 up 35) Coil detected on platform #2 down 36) No coil detected on platform #2 up 37) Coil presence on W.B.C. #2 last saddle ) Platform # down 38) No coil detected on W.B.C. #2 last seat Platform #2 lifting no coil 3) Platform #2 down 33) No coil on platform #2 down 2) W.B.C. #2 at home 4) W.B.C. #3 at home 2/38 #79259

21 DANIELIAUTOMATION OUTGOING COIL HANDLING ZONE N. 2 Coil lowering by platform #2 32) Platform #2 up 34) Coil on platform #2 up 2) W.B.C. #2 at home 4) W.B.C. #3 at home Coil transfer forward cycle by W.B.C. #3 5) Rotating facing W.B.C. #3 52) No coil on rotating platform 53) Coil detection on rotating platform 54) Rotating platform facing W.B.C ) Coil detection on W.B.C. #3 last saddle 56) No coil detection on W.B.C. #3 last seat Coil rotation by rotating platform towards W.B.C. #5 or W.B.C. #4 53) Coil detection on rotating platform 6) W.B.C. #5 at home 62) W.B.C. #4 at home 4) W.B.C. #3 at home Platform rotation towards W.B.C. #3 52) No coil on rotating platform 6) W.B.C. #5 at home 62) W.B.C. #4 at home 4) W.B.C. #3 at home Coil transfer forward cycle by W.B.C. #5 54) Rotating platform facing W.B.C. 5 62) W.B.C. 4 at home 7) No coil on W.B.C. #5 last saddle2 2/38 #79259

22 DANIELIAUTOMATION OUTGOING COIL HANDLING ZONE N ) W.B.C. #5 cycle permissive by conditioning shear at saddle 2 73) W.B.C. #5 cycle permissive by circumferential strapping machine at saddle4 74) W.B.C. #5 cycle permissive by radial strapping machine at saddle 6 75) W.B.C. #5 cycle permissive by marking and weighing machines at saddle 8 Coil transfer forward cycle by W.B.C. #4 8) No coil on W.B.C. #4 last saddle 5 54) Rotating platform facing W.B.C. #4 and #5 62) W.B.C. #4 at home 6) W.B.C. #5 at home Coil transfer backward cycle by W.B.C. #4 53) Coil detection on rotating platform 52) No coil detection on rotating platform 54) Rotating platform facing W.B.C ) W.B.C. #5 at home 62) W.B.C. #4 at home 9) Coil presence on any saddle of W.B.C. 4 92) Coil detection on first W.B.C. #4 saddle 93) No coil detection on first W.B.C. #4 saddle 22/38 #79259

23 DANIELIAUTOMATION OUTGOING COIL HANDLING ZONE N. 23 CONVEYORS AUTOMATIC CYCLE S.C. St. condition Forward cycle COIL ON INTERMEDIATE SADDLE COIL EXTRACTEOR AT HOME W.B. # AT HOME COIL CAR OUT INTERFERENCE NO COILON W.B. # SEAT # COIL EXTRACTOR t HOME Coil on W.B. # any seat to 4 S.C. 2 = S.C. 7 COIL ON W.B. # LAST SEAT #5 W.B.# cycle performed PLATFORM # UP NO COIL St. condition 4-5 PLATFORM # UP OR DOWN NO COIL St. condition -2 or 4-5 COIL EXTRACTOR AT HOME S.C. 2 Forward cycle W.B. # Home W.B. # - COIL LOWERING A S.C. 3-5= Fig. 6 Conveyors Automatic Cycle - part 23/38 #79259

24 DANIELIAUTOMATION OUTGOING COIL HANDLING ZONE N. 24 A S.C. 4-6 PLATFORM # UP AND COIL DETECTED ON PLATFORM # UP St. condition 3-2 W.B. # AND #2 AT HOME Platform # lowering S.C. PLATFORM # DOWN COIL DETECTED ON PLATFORM # DOWN S.C. 3 Coil on W.B. #2 any seat to 4 S.C. 37 COIL ON W.B. #2 SEAT 5 S.C. 2 NO COIL ON PLATFORM # DOWN NO COIL DETECTED ON PLATFORM #2 DOWN OR UP St. condition 3-33 or PLATFORM #2 UP NO COIL St. condition S.C. 7 NO COIL ON W.B.# LAST SEAT Forward cycle W.B. #2 Home W.B. #2 AT HOME W.B. 2 CYCLING t 2A Fig. 7 Conveyors Automatic Cycle - part 2 24/38 #79259

25 DANIELIAUTOMATION OUTGOING COIL HANDLING ZONE N. 25 2A PLATFORM #2 UP AND COIL DETECTED ON PLATE #2 S.C S.C.- 2 PLATFORM # DOWN NO COIL W.B. #2 AND #3 AT HOME St. condition 2-4 S.C. 7 COIL ON W.B. # LAST SEAT PLATFORM #2 Coil lowering St. Condition 3-2 W.B. # AND #2 AT HOME PLATFORM #2 Down Lifting PLATFORM # Up PLATFROM # S.C.4-5 = PLATFORM #2 DOWN WITH COIL S.C Coil on W.B. #3 seat S.C Forward cycle ROTATING PLATFORM FACING W.B. #3 NO COIL ON ROTATING PLATFORM W.B. #3 S.C S.C. 38 NO COIL ON PLATFORM #2 DOWN NO COIL ON W.B. #2 LAST SEAT Home t - COIL ROTATION 3A W.B. 3 CYCLING Fig. 8 Conveyors Automatic Cycle - part 3 25/38 #79259

26 DANIELIAUTOMATION OUTGOING COIL HANDLING ZONE N. 26 3A 6A 5A S.C PLATFORM #2 DOWN NO COIL S.C. 53 COIL DETECTION ON ROTATING PLATFORM COIL ON W.B. #2 LAST SEAT S.C. 37 S.C W.B. #5 AT HOME W.B. #4 AT HOME W.B.#3 AT HOME S.C. 2-4 W.B. #2 AND #3 AT HOME Coil rotation 9 ROTATING PLATFORM Lifting PLATFORM # 2 Up PLATFORM #2 S.C = S.C COIL DETECTION ON ROTATING PLATFORM FACING W.B. 4-5 S.C to 75 W.B. #4 AT HOME W.B. #5 READY FOR ADVANCING t Forward cycle W.B. #5 t Home W.B. #5 - W.B. 5 CYCLING - DE BUFFERING CYCLE - COIL CHARGING FROM W.B. 3 4A BUFFERING CYCLE TO W.B. #4 4B Fig. 9 Conveyors Automatic Cycle - part 4 26/38 #79259

27 DANIELIAUTOMATION OUTGOING COIL HANDLING ZONE N. 27 7A 4A COILS ON W.B. 4 COIL DETECTION ON W.B. #3 LAST STATION COIL DETECTION ON PLATFORM #2 DOWN S.C S.C. 52 NO COIL ON PLATFORM #2 UP -DOWN AND ON W.B. #2 LAST SEAT NO COIL ON ROTATING PLATFORM NO COIL ON PLATFORM # UP-DOWN AND ON W.B.# LAST SEAT S.C and 38 S.C. +2 and 4+5 and 7 NO COIL ON W.B.3 LAST SEAT S.C. 56 S.C Rotation to face W.B.#3 W.B. #5 AT HOME W.B. #4 AT HOME W.B. #3 AT HOME COIL PLATFORM ROTARY PLATFORM FACING W.B. 4 AND 5 NO COIL S.C t S.C. 5-52= Coils on W.B. #5 seat W.B. #5 CYCLING DE BUFFERING CYCLE 5A 5B Fig. Conveyors Automatic Cycle - part 5 27/38 #79259

28 DANIELIAUTOMATION OUTGOING COIL HANDLING ZONE N. 28 5B t NO COIL ON ROTATING PLATFORM S.C. 52 COIL PRESENCE ON ANY SEAT OF W.B. 4 S.C. 9 S.C. 93 COIL PRESENCE ON FIRST SEAT OF W.B. 4 W.B. #4 AND 5 AT HOME S.C Reverse cycle W.B. #4 Home W.B. #4 6A COIL TRANSFER FROM BUFFERING W.B. #4 Fig. Conveyors Automatic Cycle - part 6 28/38 #79259

29 DANIELIAUTOMATION OUTGOING COIL HANDLING ZONE N. 29 4B BUFFERING CYCLE S.C COIL DETECTION ON PLATFORM #2 DOWN S.C. 55 COIL DETECTION ON W.B. 3 LAST SEAT S.C W.B. #4, #5 AT HOME S.C. 54 ROTATING PLATFORM FACING W.B. 4-5 S.C. 8 NO COIL ON W.B.#4 LAST SEAT Forward cycle W.B.#4 Home W.B. #4 7A - W.B. 5 CYCLING - COIL CHARGING FROM W.B. 3 Fig. 2 Conveyors Automatic Cycle - part 7 29/38 #79259

30 DANIELIAUTOMATION OUTGOING COIL HANDLING ZONE N CONDITIONING SHEAR MANUAL CYCLE Starting Condition W.B.#5 down Coil detection on W.B. # saddle N. 2 Pressure roll Up Shear frame tilted out of line Pressure roll on the shear Up Shear top knife Up Sample collecting device Retracted Sample discharging device Closed Knives changing platform Up 3/38 #79259

31 DANIELIAUTOMATION OUTGOING COIL HANDLING ZONE N. 3 S.C. PRESSURE ROLL (MANUAL) Lowering PRESSURE ROLL IN CONTACT WITH THE COIL CRADLE ROLLERS ROTATION WINDING DIRECTION STRIP HEAD POSITIONED CLOSE TO PRESSURE ROLL Strip head positioning close to pressure roll start Coil diameter calculation Shear frame traverse stroke calculation SHEAR FRAME TRAVERSE Coil opener positioning close to coil start COIL OPENER POSITIONED CRADLE ROLLS ROTATION UNWINDING DIRECTION Advancing towards shear for sample marking start A Fig. 3 Conditioning Shear Manual Cycle - part 3/38 #79259

32 DANIELIAUTOMATION OUTGOING COIL HANDLING ZONE N. 32 A STRIP HEAD DETECTOR ON THE SHEAR SAMPLE POSITIONED Stopping Marking start CRADLE ROLLS ROTATION PRESSURE ROLL ON THE SHEAR LOWERING ROLL DOWN Sample marking Lifting PRESSURE ROLL ON THE SHEAR Cradle rolls starting CROP END POSITIONING FOR CUT CROP POSITIONED FOR CUT 2A Fig. 4 Conditioning Shear Manual Cycle - part 2 32/38 #79259

33 DANIELIAUTOMATION OUTGOING COIL HANDLING ZONE N. 33 2A Crop head cut start SHEAR TOP KNIFE LOWERING TOP KNIFE BOTTOM POSITION t t = Lifting SHEAR TOP KNIFE TOP KNIFE TOP POSITION t 3A Fig. 5 Conditioning Shear Manual Cycle - part 3 33/38 #79259

34 DANIELIAUTOMATION OUTGOING COIL HANDLING ZONE N. 34 3A Starting Advancing SAMPLE COLLECTING DEVICE STRIP HEAD POSITIONING FOR SAMPLE CUT Cradle rolls rotation unwinding start SAMPLE COLLECTING DEVICE FORWARD SAMPLE POSITIONED FOR CUT Sample cuts start SHEAR TOP KNIFE LOWERING TOP KNIFE BOTTOM POSITION t t = Lifting 4A Strip head rewinding start 4B CRADLE ROLLERS ROTATION STARTING WINDIG DIRECTION Retraction to home position start SHEAR FRAME TRANSFER Fig. 6 Conditioning Shear Manual Cycle - part 4 34/38 #79259

35 DANIELIAUTOMATION OUTGOING COIL HANDLING ZONE N. 35 4A 4B Retraction SAMPLE COLLECTING DEVICE SAMPLE CONNECTING DEVICE BACKWARD Lifting STRIP HEAD POSITIONED BETWEEN CRADLE ROLLERS PRESSURE ROLL Opening SAMPLE DISCHARGING PRESSURE ROLL UP End Fig. 7 Conditioning Shear Manual Cycle End 35/38 #79259

36 DANIELIAUTOMATION OUTGOING COIL HANDLING ZONE N ZONE CONTROL SYSTEM Control Functions Control mod and level selection Drives and actuators manual control Application Man-Auto, Local-Remote As per Equipment Functional Description Permissive and interlocks management As per chapter 2 of Equipment Functional Description Sequencing See chapter 5 Automatic positioning Coil tracking Coil cars, coil extractors, walking beams and lifting platforms as per Equipment Functional Description This chapter Interface with other zones or packages See chapter 7 Alarms management As per chapter 3 of Equipment Functional Description 6. COIL TRACKING The coils are tracked in the coil loading area basing on available sensors as per paragraph 3.. When a coil is manually loaded on a saddle, the relevant identification code and PDI are recalled from the working schedule by the operator and are associated to the saddle. The correspondence between coil identification and coil position is recorded in a memory table, which shall be updated at any coil shifting operation. 36/38 #79259

37 DANIELIAUTOMATION OUTGOING COIL HANDLING ZONE N BASIC OPERATOR INTERFACE The following operator interface list is provided for general information only. The final list will be agreed between the Customer and the Automation supplier. The list of control and monitoring devices for each equipment is included in the following paragraphs. The commands are identified by a CODE as from following table: Code D2 D3 D4 L P PL PLK PMK SS3 SC2 SC3 SS3 SS5 Description 2-digits display 3-digits display 4-digits display Lamp Push button Push button with lamp Push button on functional keyboard Mushroom push-button with key Selector switch with 3 positions with spring return to zero position or joystick Key selector switch with 2 positions Key selector switch with 3 positions Selector switch with 3 positions Selector switch with 5 positions 37/38 #79259

38 DANIELIAUTOMATION OUTGOING COIL HANDLING ZONE N COIL UNLOADING FROM MAIN CONTROL DESK Suggested discrete commands for coil unloading from Downcoiler N.. Type Function Notes PMC Coil unloading emergency To stop in emergency all the devices relevant to the coil unloading operation L Coil unloading emergency on Light on: emergency is activated P Coil Extractor forward Use this device to jog forward the extractor P Coil Extractor backward Use this device to jog backward the extractor P Cokil Extractor lift Use this device to lift (jog) the extractor P Coil Extractor lower Use this device to lower (jog) the extractor P Coil Car forward Use this device to jog forward the coil car P Coil Car backward Use this device to jog backward the coil car P Coil Car lift Use this device to lift (jog) the coil car P Coil Car lower Use this device to lower (jog) the coil car P Coil Car high pressure selection Use this device to enable the lifting movement at high pressure. Light on: low pressure selected. SC2 Extra stroke by-pass Use this device to enable the car to move when an extra stroke is engaged. P Cradle Rolls rotate cw Use this device to rotate c.w. by inching P Cradle Rolls rotate ccw Use this device to rotate c.c.w. by inching P WBC # forward Use this device to jog forward the walking beam P WBC # backward Use this device to jog backward the walking beam P WBC # lift Use this device to lift by jog command the walking beam conveyor P WBC # lower Use this device to lower by jog command the walking beam P WBC # step forward To forward one step the coils. P WBC # sequence stop To stop the active sequence P Platform rotate cw Use this device to lift (jog) the platform P Platform rotate ccw Use this device to rotate the platform P Platform lift Use this device to rotate the platform 38/38 #79259

39 DANIELIAUTOMATION OUTGOING COIL HANDLING ZONE N. 39 P Platform lower Use this device to lower (jog) platform 39/38 #79259

40 DANIELIAUTOMATION OUTGOING COIL HANDLING ZONE N COIL HANDLING CONTROL STATION Suggested discrete commands for coil handling operation. Type Function Notes PMC Coil handling emergency To stop in emergency all devices relevant the coil unloading section L Emergency on Light on: coil handling section emergency active P WBC #2 forward Use this device to jog forward the walking beam P WBC #2 backward Use this device to jog backward the walking beam P WBC #2 lift Use this device to lift by jog command the walking beam P WBC #2 lower Use this device to lower by jog command the walking P WBC #2 step forward To forward one step the coils P WBC #2 sequence stop To stop the active sequence P Platform #2 lift Use this device to lift (jog) the platform P Platform #2 lower Use this device to lower (jog) platform P WBC #3 forward Use this device to jog forward the walking beam P WBC #3 backward Use this device to jog backward the walking beam P WBC #3 lift Use this device to lift by jog command the walking beam P WBC #3 lower Use this device to lower by jog command the walking P WBC #3 step forward To forward one step the coils. P WBC #3 sequence stop To stop the active sequence P Platform #3 rotate cw Use this device to lift (jog) the platform P Platform #3 rotate ccw Use this device to rotate the platform P WBC #4 forward Use this device to jog forward the walking beam P WBC #4 backward Use this device to jog backward the walking beam P WBC #4 lift Use this device to lift by jog command the walking beam P WBC #4 lower Use this device to lower by jog command the walking P WBC #4 step forward To forward one step the coils. P WBC #4 sequence stop To stop the active sequence (To be continued on next page) 4/38 #79259

41 DANIELIAUTOMATION OUTGOING COIL HANDLING ZONE N. 4 4/38 #79259

42 DANIELIAUTOMATION OUTGOING COIL HANDLING ZONE N. 42 (COIL HANDLING CONTROL STATION) Type Function Notes P WBC #5 forward Use this device to jog forward the walking beam P WBC #5 backward Use this device to jog backward the walking beam P WBC #5 lift Use this device to lift by jog command the walking beam P WBC #5 lower Use this device to lower by jog command the walking P WBC #5 step forward To forward one step the coils P WBC #5 sequence stop To stop the active sequence 7.3 STRIP CONDITION CONTROL STATION Type Function Notes SS3 Coil rotating Fw/Rev Use this device to rotate the coil resting on the saddle. ) Rotate in winding direction to position the coil head end just before to the pressure roll (about 8 rotation). 2) Rotate in unwinding direction to feed the strip to the shear. More steps are required; after the crop length and the sample length have been set: PL Shear cut Use this device to perform a cut by the hydraulic cylinder, which controls the upper knife of the shear. Shear cut is initiated manually by the Operator after the crop length has been positioned under the Shear by the Operator with the rotation of saddle rolls. Shear blade must be opened to thread the product through the shear. The Operator initiates a strip cut by pressing the Shear cut push button. SS3 PL Shear knives clearance adjust up/down Shear frame tilting In/Out (two push button with lamp Use this device to adjust the clearance Use this device to insert/retract the frame. During coil transfer and lifting by W.B.C. #5 the shear frame shall be tilted off line. It is tilted towards the coil (on the coil rotating saddle) when the coil head is positioned in the top position of the coil and pressure roll is closed on the coil. The rotation angle of the shear frame has to be set as a function of the coil diameter; the operating position of the shear is the one which brings the coil opener close to the coil. This is obtained if the straight line passing through the pivoting points of the shear frame and coil opener tip is tangent to the coil. D4 Coil Diameter Value in mm of actual coil diameter (To be continued on next page) 42/38 #79259

43 DANIELIAUTOMATION OUTGOING COIL HANDLING ZONE N. 43 Type Function Notes PL Pressure roll on the coil apply Use these devices to apply/retract the pressure roll. PL Pressure roll on the coil retract The pressure roll shall be lowered on the coil till the pressure switch is tripped with the purposes of measuring the coil top position (coil diameter calculation) and to holddown the coil during shear cycle. PL PL Pressure Roll On The Shear Frame apply Pressure Roll On The Shear Frame retract Use these devices to apply/retract the pressure roll. The pressure roll frame supports the marking machine for samples. Therefore it shall be lowered on the section of the strip which has to be marked. PL knives changing platform lift Use these devices to tilt the platform PL PL PL knives changing platform lower Sample Collection Device insert Sample Collection Device retract Use these devices to insert or retract the sample pocket 43/38 #79259

44 DANIELIAUTOMATION OUTGOING COIL HANDLING ZONE N INTERFACE WITH OTHER ZONES AND PACKAGES 7.5 INTERFACE WITH DOWNCOILER AREA Emergency stop Tracking data Permissives / interlocks 7.6 INTERFACE WITH HYDRAULIC SYSTEMS Permissives / interlocks 7.7 INTERFACE WITH PACKAGES For detailed signal exchange please refer to package documentation and automation I/O list. Hereunder are listed the most important signals used for executing the coil sequences: Interface with circumferential strapping machine: machine ready, strapping request, strapping cycle end. Interface radial strapping machine: machine ready, strapping request, strapping cycle end. Interface weighing machine: machine ready, weighing request, weighing cycle end, coil weight. Interface with side coil surface marking unit: machine ready, side marking request, marking cycle end, marking code. Interface with top coil surface marking Unit machine ready, top marking request, marking cycle end, marking code. 44/38 #79259

45 DANIELIAUTOMATION Annex A COIL UNLOADING EQUIPMENT N. 45/38 #79259

46 DANIELIAUTOMATION A COIL UNLOADING EQUIPMENT N. 2 Table of contents. COIL CAR No. (ITEM 35M23) Equipment Description and Function Equipment Control and Operation COIL EXTRACTOR No. (ITEM 35M25) Equipment Description and Function Equipment Control and Operation COIL CAR No COIL EXTRACTOR No ALARMS CATEGORIES ALARMS DESCRIPTION...23 List of Figures Fig. Coil Car Traverse Mechanical Arrangement 5 Fig. 2 Coil Saddle Cross Section 6 Fig. 3 Coil Car Traverse Kinematic Chain 7 Fig. 4 Coil Takeover Station 8 Fig. 5 Coil Extractor mechanical arrangement 3 Fig. 6 Coil Extractor Traverse Drive 4 Fig. 7 Coil Extractor Lifting 5 Fig. 8 Coil Extractor Cycle 9 46/38 #79259

47 DANIELIAUTOMATION A COIL UNLOADING EQUIPMENT N. 3 EQUIPMENT FUNCTIONAL DESCRIPTION Coil unloading equipment is provide to unload the cpoil from Downcoiler N. mandrel and is composed by the following items: ITEM 35M23 35M25 EQUIPMENT COIL CAR No. COIL EXTRACTOR No. 47/38 #79259

48 DANIELIAUTOMATION A COIL UNLOADING EQUIPMENT N. 4. COIL CAR NO. (ITEM 35M23).. EQUIPMENT DESCRIPTION AND FUNCTION The Coil Car N. is provided to unload the coil from the downcoiler mandrel N. and transfer it on the intermediate saddle located between Coil Car and W.B.C.#. The equipment includes two drives: Coil car lifting, Coil car traverse Cradle rolls locking Motor & Sensor list Y Proportional hydraulic valve Coil car lifting lift-lower Y2 Single solenoid / 2 positions hydraulic valve Y3 Single solenoid / 2 positions hydraulic valve Coil car lifting Coil car lifting pressure selection high/low locking B Linear position transducer Coil car lifting position transducer for position control and interlock B2 Pressure transducer Coil car lifting pressure transducer for indication and control F Differential pressure switch Coil car lifting valves pilot line filter clogged detection for alarm S Proximity switch Coil car lifting down position detectionfor control and interlock Y Proportional hydraulic valve Coil car traverse hydraulic motor cw/ccw B Absolute encoder Coil car traverse position transducer for position control S Proximity switch Coil car traverse out of interference detection for control+interlock S2 Proximity switch Coil car traverse at saddle position detection for control and interlock S3 Proximity switch Coil car traverse at coiler position detection for control and interlock S4 Proximity switch Coil car traverse at waiting position detection for control and interlock S5 Photocell Coil car traverse on the saddle detection for control and interlock 48/38 #79259

49 DANIELIAUTOMATION A COIL UNLOADING EQUIPMENT N. 5 P TV Camera Coil car view Motor & Sensor list Y2 Oleod. DS-3P valve Coil car cradle rolls locking F2 Pressure switch Coil car cradle rolls "locking device " "on" detection, for control+interlock Fig. Coil Car Traverse Mechanical Arrangement 49/38 #79259

50 DANIELIAUTOMATION A COIL UNLOADING EQUIPMENT N. 6 Fig. 2 Coil Saddle Cross Section 5/38 #79259

51 DANIELIAUTOMATION A COIL UNLOADING EQUIPMENT N. 7 Fig. 3 Coil Car Traverse Kinematic Chain 5/38 #79259

52 DANIELIAUTOMATION A COIL UNLOADING EQUIPMENT N. 8 Fig. 4 Coil Takeover Station 52/38 #79259

53 DANIELIAUTOMATION A COIL UNLOADING EQUIPMENT N EQUIPMENT CONTROL AND OPERATION..2. Coil Car lifting-lowering Main data: Lifting stroke: Max. speed: 23 mm mm Coil Car lifting movement is performed by a proportional valve. The position of the car is controlled in open position control loop by using the position transducer - B. The pressure between Coil Car and coil in the coiling station is controlled by a pressure reducing valve and by the pressure transducer -B2. The reduced pressure is sufficient to lift/lower the Coil Car without coil. The full pressure is necessary to lift/lower the coil car with the coil. The high pressure is used to lift/lower/support the coil between the coiler and the takeover position, where a fixed intermediate saddle is foreseen. Coil Car lifting is performed in the coiler station. Coil Car lowering is performed in the coil takeover station. Coil Car stays in the down position in the coiler station till strip tail end is out from finishing mill. By tail out from finishing mill the Coil Car, in the coiler station, is lifted and position regulated in order to maintain at a distance of about mm from the coil surface; a low pressure level is used during positioning in lifting direction. The control system has to perform the following main tasks: Positioning strokes and speeds adjustment; Ramp actuator (adjustable); Required positioning accurancy ±2 mm; Warnings and alarms: diagnostics and interventions; 53/38 #79259

54 DANIELIAUTOMATION A COIL UNLOADING EQUIPMENT N. COIL CAR LIFTING Status or transitions Prop. valve Press. sel.valve Locking valve -Y -Y2 -Y3 ref. signal sol a sol a Down E E Lifting E+ E E At standstill E E Lifting at Low pressure against coil E+ Off E Coil Support Off Off Coil Transfer E Off Lowering E- E E Down E E..2.2 Coil Car Traverse Main data: Stroke: Max. traverse speed: One turn of encoder: 55 mm 27 mm/s 867 mm Max. acceleration/deceleration rate: 65 mm/s 2 The Coil Car traverse is driven through a double rack-pinion system by two hydraulic motors mechanically connected by gears. The two hydraulic motors are controlled by one proportional valve. The coil car traverses between coiler and takeover station (saddle position detection). An intermediate position (waiting position) is foreseen for the car travelling towards the takeover station. If permissive for advancing to the takeover stations are not fulfilled the car has to be stopped in this waiting position. 54/38 #79259

55 DANIELIAUTOMATION A COIL UNLOADING EQUIPMENT N. 55/38 #79259

56 DANIELIAUTOMATION A COIL UNLOADING EQUIPMENT N. 2 Car position control is performed by encoder mounted on the drive gear. An open loop position control is carried out on the base of the absolute encoder -B3. Accelerations and decelerations are determined by a ramp time. E-stop by limit switches located in coiling, takeover and waiting stations. The control system has to be implemented with the following functions and features: Positioning strokes and speed adjustment; Position transducer zeroing by car at coiling station; Ramp actuation (adjustable); Warnings and alarms detection; Positioning accuracy ±5 mm;..2.3 Coil Car Cradle Rolls Locking The cradle rolls loocking device is a stopper pressed against the rollers. Craddle Rolls Locking Status or transitions -Y2 -F2 Timer Sol.a Sol. b Locked Locking Off E Locked Off E Unlocking E Off - start Unlocked Off Off stop The stopper has to be inserted with the Coil Car pressing against the coil and the mandrel at standstill. The stopper has to be removed at stripping end. 56/38 #79259

57 DANIELIAUTOMATION A COIL UNLOADING EQUIPMENT N. 3.2 COIL EXTRACTOR NO. (ITEM 35M25).2. EQUIPMENT DESCRIPTION AND FUNCTION The Coil Extractor unloads the coil from the Coil Transfer Saddle and transfer it on the first fixed saddle of Walking Beam Conveyor #. The coil extractor traverse system consists of a beam connected to a rack-pinion system. The pinion rotation is driven by a hydraulic motor fed by a hydraulic proportional valve. The equipment includes two drives: Coil extractor traverse, Coil extractor lifting. Fig. 5 Coil Extractor mechanical arrangement 57/38 #79259

58 DANIELIAUTOMATION A COIL UNLOADING EQUIPMENT N. 4 Fig. 6 Coil Extractor Traverse Drive 58/38 #79259

59 DANIELIAUTOMATION A COIL UNLOADING EQUIPMENT N. 5 Fig. 7 Coil Extractor Lifting 59/38 #79259

60 DANIELIAUTOMATION A COIL UNLOADING EQUIPMENT N. 6 Motor & Sensor list Y Proportional hydraulic valve Coil extractor traverse hydraulic motor control B Absolute encoder Coil extractor traverse position transducer for position control and control S Proximity switch Coil extractor traverse saddle position detection S2 Proximity switch Coil extractor traverse W.B.C- # position detection S3 Proximity switch Coil extractor traverse retracted position detection S4 Photocell Coil presence detection coil on walking beam station Y Proportional hydraulic valve Coil extractor lift-lower Y2 Single solenoid / 2 positions hydr. valve Coil extractor lifting lock S Proximity switch Coil extractor down position detection S2 Proximity switch Coil extractor l slowdown to down position S3 Proximity switch Coil extractor slowdown to up position S4 Proximity switch Coil extractor up position detection Main data: Traverse stroke: Hydraulic motor max. speed: 385mm 3 rpm Gear ratio: :4 Pinion diameter: Traverse max. speed: One turn encoder: 25mm 28mm/s 785mm Lifting stroke Lifting speed Cylinder stroke Cylinder lifting/lowering speed 7mm 5mm/s 635mm 9mm/s Acceleration/Deceleration ramp 85 mm/s 2 6/38 #79259

61 DANIELIAUTOMATION A COIL UNLOADING EQUIPMENT N EQUIPMENT CONTROL AND OPERATION.2.2. Coil Extractor Traverse A closed-loop position control is carried out on the base of the absolute encoder B. Accelerations and decelerations are determined by a ramp time. The frame can be moved in any position when the extractor lifting cylinder is in the down position. If the lifting cylinder is not in down position the extractor can be moved toward the adjacent position only if a coil does not engage it. Three stopping positions are foreseen for the saddle moving with the extractor beam: Saddle position (coil lifting position), W.B. C. # position (coil lowering on W.B. C. saddle #, Resting position (out of interference position with W.B. C. #). Proximity switch -S and -S3 placed after the intermediate saddle and resting position, E-stop the drive forward-backward stroke. A Control System has to be implemented with the following functions and features: Positioning strokes and speeds adjustment; Actuation sby ramp (adjustable); Warnings and alarms detection; Positioning accuracy no less than ±5mm. 6/38 #79259

62 DANIELIAUTOMATION A COIL UNLOADING EQUIPMENT N Coil Extractor Lifting The Coil Extractor lifting is performed by a system of wedges located on the coil transfer beam. A wheeled coil cradle is lifted/lowered by shifting forward/reverse the wedges supporting it. The wedges are shifted by a hydraulic cylinder driven by a proportional valve. Lifting/lowering movements are performed open control loop. Acceleration and deceleration are performed by ramps. During traversing/standstill operation the drive is locked by the solenoid valve Y2 that prevents lowering when raised. For safety reasons, in case of power shut down, the drive remains locked in raised position. Lowering is allowed only by energizing the valve -Y2. Status or transitions Coil Extractor Lifting Prop. valve Locking valve -S -S2 -S3 -S4 Time - Y -Y2 Slowdow Slowdow ref. signal Sol a Down Down Up Up At standstill Off Off - Lifting fast E- E Lifting slow E- E - At standstill E- E Start up Off Off Stop Lowering fast E+ E Lowering slow E+ E - At standstill E+ E Start down Off Off Stop A Control System has to be implemented with the following functions and features: Positioning speeds adjustment; Actuation sby ramp (adjustable); Warnings and alarms detection. 62/38 #79259

63 DANIELIAUTOMATION A COIL UNLOADING EQUIPMENT N Coil extractor Cycle COIL EXTRACTOR CYCLE TRAVERSE Speed RESTING POSITION SADDLE POSITION W.B. # POSITION 3 5 RESTING POSITION Forw. t Rev. LIFTING 2 4 Rais. t Lower. Fig. 8 Coil Extractor Cycle The reverse cycle can be operated only in manual mode. 63/38 #79259

64 DANIELIAUTOMATION A COIL UNLOADING EQUIPMENT N. 2 2 PERMISSIVE AND INTERLOCKS Permissive and interlocks are described under the zone F.D. In this chapter are resumed specific interlocks related to the individual equipment. 2. COIL CAR NO. < Operation prevented > ITEM Manual Auto Interlocks Interlock item start run start run < Coil Car Lifting > 35M23 -Y by control ) Coil car not in the coiling station 35M23 -S3 = and x x x x 2) and W.R. #2 traverse not fully opened by 35M2 -B62 and x x x x 3) and lifting pressure not treduced by control 35M23 - Y2 x x x x < High pressure feeding > ) Coil car not in the coiling station and 35M23 -S3 = and x x x x 2) Coil car not supporting the coil and By logic and x x x x 3) Mandrel not at standstill 35M2 -M-2 not zero speed or running < Coil Car Lowering > 35M23 -Y by control x x ) Coil car not in the coiling station and 35M23 -S3 = and x x x x 2) W.R. #2 traverse not fully opened 35M2 -B62 by control x x x x < Coil Car Lifting/Lowering > 35M23 -Y by control ) Coil car in the takeover saddle station and High lifting pressure not selected 35M23 S2 = and by cvontrol of 35M23 - B2 x x x x 2) Coil car out of coiler position or out of saddle position By logic x x x x (To be continued on next page) 64/38 #79259

65 DANIELIAUTOMATION A COIL UNLOADING EQUIPMENT N. 2 < Coil Car Traverse Towards Saddle > 35M23 -Y by control ) Car stroke between coiler and waiting position and coil car not in the supporting the coil status By logic x x x x 2) Mandrel not collapsed By 35M2 -B x x x x 3) Outboard bearing not opened 35M2 -S2-23= x x x x 4) Coil car cradle rollers not locked 35M23 -F2= x x x x 5) Coil detection on the saddle 35M23-S5= x x x x < Coil Car Traverse Towards Coiler > 35M23 -Y by control ) Coil car lifting not down 35M23-S= x x x x 2.2 COIL EXTRACTOR NO. < Operation prevented > ITEM Manual Auto Interlocks Interlock item start run start run < Coil extractor traverse from home to intermediate saddle > 35M25-Y ) Coil extractor lifting not Down 35M25-S= x x x x 2) W.B. # traverse not at Home position 35M3-S9= x x x x 3) W.B. # lifting not Down 35M3-S3= x x x x 4) Coil car not cut interference with extractor < Coil transfer from intermediate saddle to W.B. # > 35M23-B= x x x x 35M25-Y ) Extractor lifting not Up 33M25-S3= x x x x 2) W.B. # lifting not Down 35M3-S9= x x x x 3) W.B. # traverse not at Home 35M-S3= x x x x 4) Coil detection on W.B. # receaving position 35M25-S4= x x x x (To be continued on next page) 65/38 #79259

66 DANIELIAUTOMATION A COIL UNLOADING EQUIPMENT N. 22 < Operation prevented > ITEM Manual Auto Interlocks Interlock item start run start run < Coil extractor traverse no coil from intermediate saddle to W.B. # > 35M25-Y ) W.B. # lifting not Down 35M3-S9= x x 2) W.B. # traverse not at Home 35M3-S3= x x 3) Coil detection on W.B. # receaving position < Coil extractor traverse from W.B. # to extractor home position > 35M25-S4= x x 35M25-Y ) Coil extractor lifting not Down 35M25-S = x x x x < coil traverse by coil extractor from w.b. # to intermediate saddle > ) Coil extractor lifting not Up 35M25-S3= x x 2) Coil detection on intermediate saddle 35M23-S5= x x 3) W.B. # traverse not at Home position 33M3-S9= x x 4) W.B. # lifting not Down 35M3-S3= x x 5) Coil car not out interference with extractor 35M23-B= x x < Extractor lifting> 35M25 -Y ) Extractor traverse at Home 35M25-S3= x x x x 2) With extractor traverse at intermediate saddle, no coil detection on the intermediate saddle 3) With extractor traverse out of W.B. # or intermediate saddle position 35M23-S5= x x 33M25-S,-S2= x x x x < Extractor lowering > 35M25 -Y ) extractor traverse out of W.B.# or Intermediate saddle position 33M25-S, -S2= x x x x 66/38 #79259

67 DANIELIAUTOMATION A COIL UNLOADING EQUIPMENT N ALARM AND FAULT CONDITIONS 3. ALARMS CATEGORIES Class I = Optical and acoustic alarm -Section of process affected Immediate line or section Emergency Stop automatically initiated Operator reset action necessary to restart the process operation. Class II = Optical and acoustic alarm - Section of process and/or actuation affected Immediate global process stop not necessary, but the section is prevented from starting Operator and/or maintenance actions necessary to avoid global process stop. Class III = Optical and acoustic alarm - Process and/or actuation not affected - Control mode can be affected. 3.2 ALARMS DESCRIPTION At least the following diagnostics and alarms have to be foreseen (threshold values only for reference and adjustables). Coli Car Lifting Type Status detected Actions Warning Alarm Type (Class II) ) Filters on coil car prop. valves piloting line clogged (by -35M23 - F) 2) Prop. valve spool positioning fault: spool position error > % for more than.3sec. ) Prop. valve spool positioning fault: spool position error > 5% for more than.5sec. 2) Hydraulic Power Unit DH alarm 3) Position transducer failure 4) Control system failure Message to operator Message to operator The drive is stopped 67/38 #79259

68 DANIELIAUTOMATION A COIL UNLOADING EQUIPMENT N. 24 Coil Car Traverse Type Status detected Actions Warning ) Prop. valve spool positioning fault: spool position error > 5 % for more than.5 sec 2) Hydraulic Power Unit DH heavy alarm 3) Position transducer failure 4) Control system failure Message to the Operator Coli Extractor Lifting Type Status detected Actions Warning Alarm Type (Class II) ) Prop. valve spool positioning fault: spool position error > % for more than.3sec. ) Prop. valve spool positioning fault: spool position error > 5% for more than.5sec. 2) Hydraulic Power Unit DH alarm 3) Position transducer failure 4) Control system failure Message to operator Message to operator The drive is stopped Coil Extractor Traverse Type Status detected Actions Warning ) Prop. valve spool positioning fault: spool position error >5% for more than.5 sec. 2) Hydraulic Power Unit WH alarm 3) Control system failure Message to the Operator 68/38 #79259

69 DANIELIAUTOMATION Annex B COIL HANDLING EQUIPMENT N. 69/38 #79259

70 DANIELIAUTOMATION B COIL HANDLING EQUIPMENT N. 2 Table of contents. INTRODUCTION WALKING BEAM CONVEYOR # Equipment Description and Function Equipment Control and Operation Walking Beam Conveyor Cycle WALKING BEAM CONVEYOR # Equipment Description and Function Equipment Control and Operation COIL LOWERING PLATFORM # Equipment Description and Function Equipment Control and Operation WALKING BEAM CONVEYOR # Equipment Description and Function Equipment Control and Operation COIL ROTATING PLATFORM # Equipment Description and Function Equipment Control and Operation WALKING BEAM CONVEYOR # Equipment Description and Function Equipment Control and Operation WALKING BEAM CONVEYOR # Equipment Description and Function Equipment Control and Operation STRIP CONDITIONING SHEAR EQUIPMENT Equipment Description and Function Equipment Control and Operation Shear Frame Control System PRESSURE ROLL ON THE COIL Equipment Description and Function Equipment Control and Operation PRESSURE ROLL ON THE SHEAR FRAME Equipment Description and Function Equipment Control and Operation STRIP SAMPLE MARKING UNIT Equipment Description and Function Equipment Control and Operation Interface Signals KNIVES CHANGING PLATFORM Equipment Description and Function Equipment Control and Operation SAMPLE COLLECTION DEVICE Equipment Description and Function Equipment Control and Operation NEW CIRCUMFERENTIAL COIL STRAPPING MACHINE Equipment Description and Function Equipment Control and Operation RADIAL STRAPPING MACHINE (ITEM 35M42) Equipment Description and Function Equipment Control and Operation COIL MARKING MACHINE (ITEM 35M44) Equipment Description and Function Equipment Control and Operation /38 #79259

71 DANIELIAUTOMATION B COIL HANDLING EQUIPMENT N. 3.8 COIL WEIGHING MACHINE (ITEM 35M43) Equipment Description and Function Equipment Control and Operation WALKING BEAM # WALKING BEAM # COOIL LIFTING PLATFORM # WALKING BEAM CONVEYOR # ROTATING PLATFORM WALKING BEAM CONVEYOR # WALKING BEAM CONVEYOR # CONDITIONING SHEAR...68 List of Figures Fig. Walking Beam Conveyor # mechanical arrangement 5 Fig. 2 Walking Beam Conveyor # Cycle 9 Fig. 3 Walking Beam Conveyor #: step forward Fig. 4 Walking Beam Conveyor #2 mechanical arrangement Fig. 5 Coil Lowering Platform #2 4 Fig. 6 Walking Beam Conveyor #3 mechanical arrangement 5 Fig. 7 Walking Beam Conveyor #3 Cycle 9 Fig. 8 Walking Beam Conveyor #3: step forward 2 Fig. 9 Coil Rotating Platform #3 22 Fig. Coil Rotating Platform #3 Kinematic Chain 23 Fig. Walking Beam Conveyor #4 mechanical arrangement 25 Fig. 2 Walking Beam Conveyor #5 mechanical arrangement 27 Fig. 3 Shear and Rotating Saddle Rolls mechanical arrangement 3 Fig. 4 Shear Frame mechanical arrangement 32 Fig. 5 Shear Frame Traverse Geometry 35 Fig. 6 Pressure Roll Geometry 38 Fig. 7 Pressure Roll on the Shear mechanical arrangement 4 Fig. 8 Knives Changing Platform mechanical arrangement 45 Fig. 9 Sample Collecting Device mechanical arrangement. 47 7/38 #79259

72 DANIELIAUTOMATION B COIL HANDLING EQUIPMENT N. 4 EQUIPMENT FUNCTIONAL DESCRIPTION. INTRODUCTION Coil handling equipment is composed by the following items: ITEM EQUIPMENT 35M3 W.B. Coil Conveyor # 35M3 Coil Lowering Platform # 35M32 W.B. Coil Conveyor #2 35M32 Coil Lowering Platform #2 35M33 W.B. Coil Conveyor #3 35M33 Coil Lowering Platform #3 35M34 W.B. Coil Conveyor #4 35M35 W.B. Coil Conveyor #5 35M4 Coil Rotating Saddles Drive Shear Cutting Drive Shear Knives Clearance Adjustment Strip Sample Marking Unit 35M42 35M42 35M43 Circumferential Coil Strapping Machine (New) Radial Strapping Machine Coil Weighing Machine 72/38 #79259

73 DANIELIAUTOMATION B COIL HANDLING EQUIPMENT N. 5.2 WALKING BEAM CONVEYOR #.2. EQUIPMENT DESCRIPTION AND FUNCTION Fig. Walking Beam Conveyor # mechanical arrangement Main data: One W.B. coil conveyor # at 445 mm above floor level to transfer the coils from the coil extractor position to the coil lowering platform #. Coil positions No. 5 Lifting stroke Cylinder lifting/lowering speed Traversing stroke Traversing speed 95mm 5mm/s 4mm 25mm/s 73/38 #79259

74 DANIELIAUTOMATION B COIL HANDLING EQUIPMENT N. 6 Motor & Sensor list Y Proportional hydraulic valve walking beam conveyor lift-lower Y2 Single solenoid / 2 positions hydr. valve walking beam conveyor lifting lock S Proximity switch walking beam conveyor lifting "up" S2 Proximity switch walking beam conveyor up slowdown" to up position S3 Proximity switch walking beam conveyor lifting "down" S4 Proximity switch walking beam conveyor slowdown to down position Y5 Proportional hydraulic valve Walking beam traverse backward/forward Y6 Single solenoid / 2 positions hydraulic valve Walking beam traverse lock S5 Proximity switch W.B.C. traverse forward position detection S6 Proximity switch W.B.C. traverse slowdown to forward position S7 Proximity switch W.B.C. traverse backward position detection S8 Proximity switch W.B.C. traverse slowdown to backward S9 Proximity switch W.B.C. traverse home position detection S Photocell W.B. Conveyor # traverse coil detection on last station F5 Differential pressure switch Pilot Line filter clogged detection relevant to coil extractor and W.B. C. # proportional valves The deformation of the parallelogram obtained by the cylinder movement causes the lifting motion of the movable beam. The hydraulic cylinder is driven by a proportional valve. Lifting and lowering movements are performed in open position control loop. Up and down positions, as well as slowdown positions, are detected by proximity switches. Acceleration/deceleration are performed by ramp. Lifting stroke Cylinder stroke Cylinder lifting/lowering speed 95 mm 555 mm 5 mm/s Acceleration/Deceleration ramp 75 mm/s 2 74/38 #79259

75 DANIELIAUTOMATION B COIL HANDLING EQUIPMENT N EQUIPMENT CONTROL AND OPERATION Locking valves are de-energized to lock the drive when the corresponding proportional valve is not operating Walking Beam Conveyor Lifting Status or transitions W.B. # Lifting Prop. valve Locking valve - Y -Y2 up up Ref. signal Sol a slowdown -S -S2 -S3 -S4 Timer down down sowdown At standstill down Off Off - Lifting fast E- E Lifting slow E- E - E- E start Stop up Off Off stop Lowering fast E+ E Lowering slow E+ E - E+ E start Stop down Off Off stop A Control System has to be implemented with the following functions and features: Positioning speeds adjustment; Actuation by ramp (adjustable); Warnings and alarms detection Walking Beam Conveyor Traverse The movable beam transfer is performed by a cycle driven by a proportional valve. The forward and reverse strokes are performed in open position control loop. forward and reverse positions, as well as forward slow down, reverse slowdown and home position are detected by proximity switches. Home position is the half stroke down position, where the W.B. has to rest to be out of interference with extractor and coil platform #. Acceleration and deceleration are performed by ramp: acc/dec ramp =8 mm/s 2 adjustable. 75/38 #79259

76 DANIELIAUTOMATION B COIL HANDLING EQUIPMENT N. 8 Status or transitions W.B. # Traverse Prop. valve Lock. -S5 -S6 -S7 -S8 -S9 Timer - Y5 -Y6 forward forward slowdown Ref. signal backward backward slowdown home position Home Off Off - Reverse fast E+ E - - Reverse slow E+ E - Backward position stop E+ Off E Off start () stop () Forward fast E- E - - Forward slow E- E Forward stop E- E start () Off Off stop () Rev. fast E+ E - - E+ E start (2) Rev. stop at home Off Off start (2) A Control System has to be implemented with the following functions and features: Positioning speeds adjustment; Actuation by ramp (adjustable); Warnings and alarms detection. 76/38 #79259

77 DANIELIAUTOMATION B COIL HANDLING EQUIPMENT N WALKING BEAM CONVEYOR CYCLE COIL CONVEYOR W.B. # CYCLE TRAVERSE Speed RESTING POSITION W.B. SADDLE POSITION W.B. # SADDLE POSITION 3 5 RESTING POSITION Forw. t Rev. LIFTING 2 4 Rais. t Lower. Fig. 2 Walking Beam Conveyor # Cycle The movement of the walking beam for transferring the coils includes the following steps:. Traversing back without coil from home position to backward position, 2. Lifting without coil, 3. Lifting with coil, 4. Traversing forward with coil, 5. Lowering with coil, 6. Lowering without coil, 7. Traversing back without coil to home position. 77/38 #79259

78 DANIELIAUTOMATION B COIL HANDLING EQUIPMENT N. Fig. 3 Walking Beam Conveyor #: step forward 78/38 #79259

79 DANIELIAUTOMATION B COIL HANDLING EQUIPMENT N..3 WALKING BEAM CONVEYOR #2.3. EQUIPMENT DESCRIPTION AND FUNCTION Fig. 4 Walking Beam Conveyor #2 mechanical arrangement Main data: One W.B. Coil Conveyor #2 at 229 mm. above floor level to transfer the coils from Coil Lowering Platform # to Coil Lowering Platform #2. Coil positions N. 6 Lifting stroke Cylinder stroke Cylinder lifting/lowering speed Traversing stroke Traversing speed 95mm 555mm 5mm/s 4mm 25mm/s 79/38 #79259

80 DANIELIAUTOMATION B COIL HANDLING EQUIPMENT N. 2 Motor & Sensor list Y Proportional hydraulic valve W.B.C. lift-lower Y2 Single solenoid / 2 positions hydr. valve W.B.C. lifting lock S Proximity switch W.B.C. lifting "up" S2 Proximity switch W.B.C. up slowdown" to up position S3 Proximity switch W.B.C. lifting "down" S4 Proximity switch W.B.C. slowdown to down position Y5 Proportional hydraulic valve W.B.C. traverse backward/forward Y6 Single solenoid / 2 positions hydraulic valve W.B.C. traverse lock S5 Proximity switch W.B.C. traverse forward position detection S6 Proximity switch W.B.C. traverse slowdown to forward position S7 Proximity switch W.B.C. traverse backward position detection S8 Proximity switch W.B.C. traverse slowdown to backward S9 Proximity switch W.B.C. traverse home position detection S Photocell W.B.C. traverse coil detection on first station S Photocell W.B.C. traverse coil detection on last station P TV Camera W.B.C. traverse view Home position is the half stroke down position, where the W.B.C. has to rest to be out of interference with Coil Platform # and Coil Platform # 2. Lifting stroke Cylinder stroke Cylinder lifting/lowering speed 95mm 555mm 5mm/s Acceleration/Deceleration ramp 75mm/s EQUIPMENT CONTROL AND OPERATION Please refer to Walking Beam Conveyor # control and operation at chapter.2. 8/38 #79259

81 DANIELIAUTOMATION B COIL HANDLING EQUIPMENT N. 3.4 COIL LOWERING PLATFORM #2.4. EQUIPMENT DESCRIPTION AND FUNCTION The lifting lowering motion of platform #2 is performed by a hydraulic cylinder driven by a proportional valve. Motor & Sensor list Y Proportional hydraulic valve coil platform lift-lowering S Proximity switch coil lifting stop S2 Proximity switch coil lifting slowdown when lifting S3 Proximity switch coil lowering stop S4 Proximity switch coil lowering slowdown when lowering S5 Photocell coil detection on platform #2 in the top position S6 Photocell coil detection on platform #2 in the bottom position F Diff. pressure switch pilot line filter clogged detection relevant to platform #2 and W.B. #2 traverse proportional valves One Coil Lowering Platform #2 from 22mm to floor level. Lowering stroke Lowering speed 229 mm, mm/s. 8/38 #79259

82 DANIELIAUTOMATION B COIL HANDLING EQUIPMENT N. 4 Fig. 5 Coil Lowering Platform #2.4.2 EQUIPMENT CONTROL AND OPERATION Please refer to Coil Lowering Platform N. control and operation at chapter.3. 82/38 #79259

83 DANIELIAUTOMATION B COIL HANDLING EQUIPMENT N. 5.5 WALKING BEAM CONVEYOR #3.5. EQUIPMENT DESCRIPTION AND FUNCTION Fig. 6 Walking Beam Conveyor #3 mechanical arrangement Motor & Sensor list Y Proportional hydraulic valve W.B.C. section lifting Y3 Single solenoid / 2 positions hydr. valve W.B.C. section lifting lock Y2 Proportional hydraulic valve W.B.C. section 2 lifting Y4 Single solenoid / 2 positions hydr. valve W.B.C. section 2 lifting lock B Linear position transducer W.B.C. section position transducer B2 Linear position transducer W.B.C. section 2 position transducer S Proximity switch W.B.C. section "up" position detection S2 Proximity switch W.B.C. section "down position detection S3 Proximity switch W.B.C. section 2 "up" position detection S4 Proximity switch W.B.C. section 2 "down position detection F Differential pressure switch pilot line filter clogged detection relevant to w.b. #3 lifting prop. valves (To be continued on next page) 83/38 #79259

84 DANIELIAUTOMATION B COIL HANDLING EQUIPMENT N. 6 (Walking Beam Conveyor Traverse) Y Proportional hydraulic valve W.B.C. traverse backward/forward Y2 Single solenoid / 2 positions hydraulic valve W.B.C. traverse lock S Proximity switch W.B.C. traverse forward position detection S2 Proximity switch W.B.C. traverse slowdown to forward position S3 Proximity switch W.B.C. traverse backward position detection S4 Proximity switch W.B.C. traverse slowdown to backward S5 Proximity switch W.B.C. traverse home position detection S6 Photocell W.B.C. traverse coil detection on first station S7 Photocell W.B.C. traverse coil detection on last station P TV Camera W.B.C. traverse view Conveyor W.B.C. is shared in two movable beams, which are tied together for the transfer motion, but need separate hydraulic cylinder for lifting. The cylinders, each driven by a proportional valve, have to be synchronised by calculating the position transducers difference. Each lifting system consists of a parallelogram with two (upper) vertices hinged to the movable beam, and two other ones two (lower, connected each other by a bar) shifted by hydraulic cylinder, mech. connected to the movable beam itself. W.B. C. coil conveyor #3 at floor level to transfer the coils from the coil lowering platform #2 to the coil rotating platform: No. of coil positions 2 Traversing stroke Traversing speed Lifting stroke Lifting speed 4mm 25mm/s 95mm 5 mm/s Acceleration/Deceleration ramp 75 mm/s 2 84/38 #79259

85 DANIELIAUTOMATION B COIL HANDLING EQUIPMENT N EQUIPMENT CONTROL AND OPERATION Locking valves are de-energized to lock the drive when the corresponding proportional valve is not operating Walking Beam Conveyor Lifting Item Status Function Y 4 2mA WBC section # lower 2 2mA WBC section # lift Y3 E WBC section # unlock lift/lower movements Off Hardwired Off WBC section # lock lift/lower movements during traversing/standstill WBC section # llifting lock in emergency condition Y2 4 2mA WBC section #2 lower 2 2mA WBC section #2 lift Y4 E WBC section #2 unlock lift/lower movements Off Hardwired Off WBC section #2 lock lift/lower movements during traversing/standstill WBC section #2 llifting lock in emergency condition A Control System has to be implemented with the following functions and features: Opened position control loop for each cylinder; Position synchronization of section -section 2 during movements; Positioning strokes and speeds adjustment; Actuation ramp (adjustable); Warnings and alarms detection; Individual and tandem jog control. 85/38 #79259

86 DANIELIAUTOMATION B COIL HANDLING EQUIPMENT N Walking Beam Conveyor Traverse The movable beam transfer is performed by a cycle driven by a proportional valve. The forward and reverse strokes are performed in open position control loop. Forward and reverse positions, as well as forward slow down, reverse slow down and home position are detected by proximity switches. Home position is the half stroke down position, where the W.B. has to rest to be out of interference with extractor and coil platform #. Acceleration and deceleration are performed by ramp: acc/dec ramp =8 mm/s 2 adjustable. Status or transitions W.B. #2 Traverse Prop. valve Lock. -S -S2 -S3 -S4 -S5 Timer - Y -Y2 forward forward slowdown Ref. signal backward backward slowdown home position Home Off Off - Reverse fast E+ E - - Reverse slow E+ E - Backward position stop E+ Off E Off start () stop () Forward fast E- E - - Forward slow E- E Forward stop E- E start () Off Off stop () Rev. fast E+ E - - E+ E start (2) Rev. stop at home Off Off start (2) 86/38 #79259

87 DANIELIAUTOMATION B COIL HANDLING EQUIPMENT N Walking Beam Conveyor Control Functions A Control System has to be implemented with the following functions and features: Positioning speeds adjustment; Actuation by ramp (adjustable); Warnings and alarms detection Walking Beam Conveyor Cycle CONVEYOR W.B. #3 CYCLE TRAVERSE Speed HOME POSITION BACW. POSITION FORW. POSITION HOME POSITION Forw. t Rev. LIFTING Rais. t Lower. Fig. 7 Walking Beam Conveyor #3 Cycle 87/38 #79259

88 DANIELIAUTOMATION B COIL HANDLING EQUIPMENT N. 2 The movement of the walking beam for transferring the coils includes the following steps:. Traversing back without coil from home position to backward position, 2. Lifting without coil, 3. Lifting with coil, 4. Traversing forward with coil, 5. Lowering with coil, 6. Lowering without coil, 7. Traversing back without coil to home position. Fig. 8 Walking Beam Conveyor #3: step forward 88/38 #79259