Dynamic Feed. Melt Pressure Control inside Hot Runners. T Technology. A Application. Dynamic Feed

Transcription

1 Melt Pressure Control inside Hot Runners C T P A C Company P Products T Technology A Application

2 Online melt pressure control inside hot runner systems C T P A Product type Components to be added to hot runner systems in order to use them with melt pressure control:.... Valve gate hot runner system including melt valve module Valve pin Pressure transducer Flow valve block d) Hydraulic actuator e) Connection box. control unit f) Signal line to the injection moulding machine g) Signal line to the hot runner system h) Signal line to the servo valves. Servo valves and pressure source i) Pressure supply by injection moulding machine k) Pressure supply by mobile hydraulic power unit m) Hydraulic line to the hot runner system d) 4 Operation principle, usage, benefits The melt pressure control works as shown in the sketchbelow and offers the following possibilities: m) e) 5 èmelt pressure control by the flow valve changing the flow channel cross section infinitely èonline pressure control during injection èindividual pressure profile for each nozzle èoptimum filling conditions for each cavity or each part of the cavity èapplication: i) f) 7 àoptimise the filling of parts gated at several spots. àincrease the quality of moulded parts made with multi cavity moulds. àbalance the runner system inside family moulds and modular moulds online during production. k) 0 h) 9 g) 8 6 Measuring melt pressure inside the flow bore Setting pressure by changing the valve position p t Comparison of actual and target pressure 8 page no. of related data sheets /

3 flow valve module for valve gate nozzles of class E: ènozzle size : Flow bore-ø mm ènozzle style E: manifold nozzle, screw fit L Flow valve module for nozzles of class E. DF TB Flow valve block with vlave pin and pressure transducer. HYC 450M 0 Hydraulic actuator including position sensors L A B Nozzle length Cut out manifold Cut out manifold Values of the dimensions mentioned above depend on the selected nozzle series and the selected nozzle type. They can be found either in the related nozzle data sheet or in the Synventive Hot Runner Guide. B A /

4 flow valve module for valve gate nozzles of the following class: Class 6 E ènozzle size 6: Flow bore-ø 6 mm ènozzle style E: manifold nozzle, screw fit Class E ènozzle size : Flow bore-ø mm ènozzle style E: manifold nozzle, screw fit Flow valve module for nozzles of class 6 E and E L. DF TB 6 / DF TB Flow valve block with valve pin and pressure transducer. HYC 450M 0 Hydraulic actuator including position sensors L A B Nozzle length Cut out manifold Cut out manifold B A Values of the dimensions mentioned above depend on the selected nozzle series and the selected nozzle type. They can be found either in the related nozzle data sheet or in the Synventive Hot Runner Guide. /

5 Actuator for manifold systems bolted to the manifold. There is a cooling plate between the actuator and the manifold in order to cool the actuator and to thermally separate it from the hot manifold surface. Actuator HYC 450M 0 This actuator has position sensors mounted to it because it is used with the online melt pressure control. Needle Needle Ø Attachment Adjustment Needle operation Operation Operation pressure Flow rate Needle stroke Closing force Opening force Connections Ø 6 / Ø 8 mm quick coupling, anti-rotation ±.5 mm via adjustment threads from outside hydraulic 0 bar 0 mm 400 N (0 bar) 400 N (0 bar) Mx.5 Closing Opening Cooling Medium Flow rate Temperature Connections Cooling water 6 l/min C Mx.5 max. actuators in a row different positions We recommend to cool the actuator after the end of production for 5 minutes at 0 C to protect it against overheat due to heat flow from the manifold. 4 /

6 Connection box for hot runner systems which are equipped with.. DF JB 4 H0 Connection box for 4 control zones Hot runner connection box DF JB. DF JB 8 H0 Connection box for 8 control zones. DF JB 4 H0 & DF JB 8 H0 Combination for control zones 4. DF JB 8 H0 x Combination for 6 control zones 4 5 /

7 Mobile PID control unit with max. 6 control zones which can be used to run hot runner sytems with the online melt pressure control. Control unit DFC The control unit is operated by a touch screen which can be mounted in different ways. Technical data Current Temperature Humidity /PE 0 / 0 V AC 50 / 60 HZ 0 A C % non condensing. DF C... S 0 (Standard) Screen inside housing DF C 4 S 0 DF C 8 S 0 DF C S 0 DF C 6 S 0 4 control zones 8 control zones control zones 6 control zones h x w x d 45 x 600 x 550 mm. DF C... S SOI 0 Screen mounted on top of housing DF C 4 S SOI 0 DF C 8 S SOI 0 DF C S SOI 0 DF C 6 S SOI control zones control zones control zones control zones h* x w x d *including screen 575 x 600 x 550 mm d. DF C... R 0 Remote screen mounted to wall DF C 4 R 0 DF C 8 R 0 DF C R 0 DF C 6 R 0 h x w x d 4 control zones 8 control zones control zones 6 control zones 45 x 600 x 550 mm 4 w 5 DFCOICAB connection cable, standard length 5 m h 4. Connections for 4 to 8 control zones 5. Connections for more than 8 control zones Injection moulding machine Servo valves Hot runner system (Pressure trasnducer, position sensors) 6 /

8 . DF CIK Interface between the control unti and the injection moulding machine: Control unit DFC: Signal line to the injection moulding machine Interface base Jumper to operate the injection moulding machine without All data needed to set up the interface can be found in the interface specification.. DF CAB IMMS Connection cable to establish the signal line between the following components: Injection moulding machine d) control unit Standard length 7.5 m. Connection to the injection moulding machine d) 4. Operation without 5. DF AN PWM-00 Signal converter for screw drive at the injection moulding machine, converts from analog to digital signals. For the connection situation necessary data see at Controller Product Description /

9 . DF CAB HRS Connection cable to establish the signal line between the following components: Hot runner system control unit Control unit DFC: Signal line to the hot runner system Standard length 7.5 m. Connections for 4 to 8 control zones. Connections for more than 8 control zones 8 /

10 . DF CAB HPUS Connection cable to establish the signal line between the following components: Servo valve block control unit Control unit DFC: Signal line to the servo valve block Standard length 7.5 m. Connections for 4 to 8 control zones. Connections for more than 8 control zones 9 /

11 Servo valves to operate the flow valves of hot runner sytems in which the melt pressure control has been installed. Servo valves and oil filter are mounted to a valve block. This valve block can either be mounted to the injection moulding machine or to a mobile hydraulic power unit - depending which component is used to supply pressure to the actuators in the hot runner system. The servo Valve block is delivered with hydraulic hoses with a standard lenght of m. Servo valve block DF VB Operating data Pressure Flow rate Connections Oil type 0 bar 5 l/min 6 l/min G/4 (max. 8 control zones) (more than 8 zones) Hydraulic oil DIN 554-, HLP. DF VB 0 S0 Valve block for control zones. DF VB 04 S0 Valve block for 4 control zones. DF VB 08 S0 Valve block for 8 control zones 4. DF VB S0 Valve block for control zones 5. DF HF 0 Oil filter 4 6. DF HFE 0 Filter element /

12 Mobile hydraulic power unit to supply pressure to the actuators of hot runner systems in which the melt pressure control has been installed. Mobile hydraulic power unit DF HPU The hydraulic power unit is delivered with the servo valve block mounted to it including hydraulic hoses with a standard length of 6 m. Technical data Current Pressure Flow rate Connections Oil type Cooling Connections /PE 400 V AC 50 / 60 Hz x 6 A 0 bar 5 l/min 6 l/min G/4 (max. 8 control zones) (more than 8 zones) Hydraulic oil DIN 554-, HLP 5 l/min, max. 0 C / BSP Accumulator Connections 0 L, 90 bar 5/6 - UNF Scope of supply with hydraulic oil without nitrogen Weight h x w x d 540 kg (without oil) lifting points 644 x 48 x 86 mm DF HPU...0S, available units DF HPU 4 0S DF HPU 8 0S DF HPU 0S DF HPU 6 0S 4 control zones 8 control zones control zones 6 control zones Before initial operation Hydraulic unit has to be filled with oil (filter pump 0 µm) and accumulator with nitrogen loaded and accumulator loaded with nitrogen. /

13 . DF HOSE... Hydraulic hose to establish the line between servo valves and the actuators of hot runner systems in which the melt pressure control has been installed. Hydraulic line to the hot runner system DF HOSE DF HOSE 6 length m length 6 m. Fittings DF HCF DF HCM Quick coupling, socket Quick coupling, plug d) d) XAP0406 DIN47 (0x.) fitting retaining ring e) f) XAA0606 XAQ06000BS fitting seal e) f). Connection of servo valves to the hot runner system HR VB Hot runner system (connection plate) Valve block e) e) /

14 MK-PRM.BRM.GB-P.DFTECD