PVC Sheet Extruding and Forming Test Line

• After-sales Service: All Life
• Warranty: 1 Year
• Product Type: PVC Board
• Board Layers: Single Plate
• Screw No.: Double-screw
• Automation: Automatic
• Model NO.: EPCT-35
• Computerized: Computerized
• Certification: CE, ISO9001:2008
• Customized: Customized
• Condition: New
• Transport Package: Plywood
• Trademark: HAPRO
• Origin: China
• HS Code: 90248000
• Production Capacity: 100piece/Year

Product Description

The Principle of extrusion unit

The basic working principle of extrusion unit :Make the Polymer melt (or viscous fluid) through a certain shape of the die ,Under the pressure of screw ,become the continuous profiles with constant cross section shape. Various die heads are available for specific measuring tasks. The screw with different diameter, length-diameter radio and compress ratio can be chosen depending on the tested materials. It can complete different functional simulation test in laboratory environment with the die heads and other auxiliary equipment.

Conical Twin-screw Extruder Platform:

Laboratory Conical Twin-screw Extruder can be integrated by main unit and conical twin-screw extrusion unit. That can be used to simulate real production process in the laboratory.Because of its special structure, the residual material can be cleaned quickly. In the measuring extrusion unit, the sample material begin plastify under practice-oriented conditions and extruded through the die head.Matched well with different die heads ,it's used for extruding the Belt, Tube, PCPO and granulation .

Conical Twin-screw platform is consist of the Drive device, Feeding device, Barrel ,Twin-screw and Dies parts, etc. The Twin-screw is the heart of the extruder, divided into the charging section (solid conveying zone), compression section(melting zone) and the homogenization section (the melt conveying zone) three parts. Put the material into the hopper ,under the action of a rotating screw, material was pushed on to the direction of the nose. Material endures strong shear, mixing and calendaring in the barrel, In this process, Meanwhile, the physical states of material the evolve from glass state to the high elastic state ,eventually become sticky flow pattern .

• Equipment composition

1. Drive device

It is mainly used to complete the plastic plasticizing and transportation by uniform rotation for torque setting, Servo motor control screw torque, pre-set torque from touch-screen.

1. Feeding device

Conical Twin-screw platform adopts screw metering feeding device. According to the properties of material production and processing technology conditions, adjust the volume of feed speed and extrusion in order to achieve the balance.

                    

1. Barrel

Two threaded bores opposite each other are provided at the end of the barrel of each measuring extruder for taking a thermocouple and a pressure transducer for measuring the temperature and the pressure of the melt in front of the die channel.

1. Screw

Because of its rotation, the powder or particle shape plastic was pushed to the former, so as to achieve compaction, melting and mixing purpose of homogenization.
             
 

1. Die

Mounting and interchanging of the die heads at the extruder is very easy: just fix them with the ring nut at the extruder barrel. The die heads are made of extremely corrosion-resistant steel and are heated electrically in the standard version ,and can be disassembled for cleaning. Various die heads are available for specific measuring tasks.
For example ,It is mainly used in extruding and forming PVC pipe, plate, sheet, film, profile, and granulator etc.

 

1. Machine specification in details

     

1. Movable Main Platform

Photograph	Performance Index	Performance Parameter
	Control Mode	Industry Bus
	Power supply	3×380V,60Hz +N +PE
	Docking mode	Manual lock
	Fixing Mode	Movable
	Power of Motor	11.0 kW
	Motor Speed	1500 r/min
	Reducer Rate	1:10
	Speed Range	0.1 ~150 r/min
	Rated Torque	0 ~ 700 Nm
	Speed Accuracy	0 .05% F.S
	Torque measuring method	Cantilever
	Torque Range	0 ~ 900 Nm
	Torque Accuracy	0.1% F.S
	Static Measurement Accuracy of Temp	0.1ºC
	Dynamic Measurement Accuracy of Temp	+ 0.5ºC
	Melt pressure Range	0.1 ~ 30 MPa
	Melt pressure Accuracy	0.5% F.S
	PC operating System	Window 10
	Application Software	Hapro Control software Mixer report software Extruder report software Viscosity software
	Weight
	Dimension (L×W×H)	1050×750×1360 mm
	Center height	1000mm

  (2) Conical Twin Screw Extruder
 

Photograph	Performance Index	Performance Parameter
	Screw cylinder combination	Pneumatic Pull and push As shown in the left picture, the barrel is separated, and it is convenient to clean the screw by pushing and pulling to open and close
	Screw Diameter	little -end:35 mm Big-end:81mm Screw material: SKD61 ,Screw edge surfacing alloy Barrel material :Main part 38CrMoAlA,inside  inlaid with a full hard alloy sleeve Hardness: HV900~1100 Brittleness: ≤2 Thickness of nitriding layer:0.5~0.8mm
	Screw arris length	865mm
	Temp control system	RKC from Japan
	Temp sensor	J type thermocouple
	Heating	Electrical Heating/8 Zones(Barrel 4,Die head 4)
	Barrel heating power	9 kW
	Die head heating power	4.2 kW
	Max. Temperature	350ºC
	Cooling	Air Compression The factory needs to have air source or compression pump, and all 4 heating zones have cooling
	Exhaust way	Vacuum
	Pressure range	0~30 Mpa
	Feeding way	Starvation force-feeding
	Feeders	Powder feeder :5L Pellet feeder:5.4L
	Output	0.5 -20 kg/ hr
	Die head	T- Die W×T : 100×4-6mm adjustable

 

	Weight
	Dimension (L×W×H)	1850×750×1850 mm

 

1. PVC sheet forming machine

 

Photograph	Performance Index	Performance Parameter
	Roller specification	Φ110×190
	Roller No.	Two
	Roller rotation speed	0.1~40rpm
	Roller drive mode	Two roller independent servo drive
	roller temperature control mode	Mold temperature machine, medium is water
	Temp. Range	5~90ºC
	Total power of Mold temperature machine	3.5kW
	Max. Forming width	120 mm
	Range of forming thickness	1~7.0 mm
	Traction control mode	servo drive
	Traction speed	0.1~10m/min, Manual adjustment
	Mode	Belt conveyor
	Traction power	2.0 kW
	Total power	5.5 kW
	Cooling	Water
	Power supply	3-phase 380V
	Weight	kg
	Dimension (L×W×H)	1800×850×1460 mm

 

1. P&ID(Please see the Separate drawings)

 

1. Utility list
   1. total Max.installed power:11(RM-600C Servo motor)+9(Extruder Barrel heating)+4.2(Die head heating)+0.8(Electric)+2(Sheet forming machine)+3.5(Mold temperature machine)=28.5kW
   2. compressed air (pressure/volume): 0.4-0.6MPa;200L/min
   3. water (circulation volume. Max temperature, pressure):50L External chiller,90ºC

 

1. Layout

   Conical twin-screw extrusion experiment:

   
   :Operation process and precautions
   (1),,,;Familiar with the working principle, technical specification and relevant regulations of installation, use and cleaning of conical twin-screw extrusion platform .
   (2),,.,PLC.Make sure that the connection of RM-600C main unit power line, communication line,PC power line is correct .If the white power indicator on the rear panel is on, the power supply is normal. If the green indicator on the front panel is on, the PLC is running normally(see the video)
   (3),,,,;Connect extruder with the main unit, then connect the mold, and make sure that the temperature sensor wires, heating wires and air pipe are correctly connected
2. PVC,,,.Ensure that the power cable of the PVC sheet forming machine is properly connected and the water inlet and outlet pipes are properly connected. The power cable of the hot /cold water machine is correctly connected, and the water in the water tank is at the normal water level
3. ,;,,,
4. Start the computer and double-click the control software of the rheometer,Select the extruder platform, connect the communication, set the extrusion temperature of each area, and click Heating
5. ,,.Turn on the hot /cold water machine, set the water temperature, start the motor pump and air compressor
6. ,700Nm,P120Mpa().10min;Ensure that the software safety function is enabled, the maximum torque is 700Nm, and the maximum pressure P1 is 20Mpa(other pressure values are invalid ,they are reserved for future expansion functions). Prepare the experiment after the temperature reaches the set temperature and is stable for 10min.
7. (8).1400r/min,(400r/min),10r/min,1min35r/min,,.,.;
   Add the materials to be tested in the hopper .The stirring motor is operated at a maximum speed of 1400R /min, the particle feeder motor is operated at a low speed (such as 400R /min), and the powder feeder motor is started at a low speed (such as 10R /min). After 1 minute, the speed of the powder feeder motor is increased to 35R /min. The torque and pressure changes during extrusion are observed, and the speed of the powder feeder motor and particle feeding quantity are adjusted appropriately .When the pressure value of the machine starts to increase a little, it means that the materials have reached the extruder neck. At this time, pay special attention to observe the change of torque and pressure value.
   (9),PVC.,,.PVC,.When the material is smoothly extruded from the Die head, it is necessary to push the PVC sheet forming machine close to the Die head. During the process of pushing, Observe the distance between the traction roller and the mold at all times to avoid scratches or damage caused by the traction roller touching the mold.After confirming the position of the PVC sheet forming machine, lock the universal wheel
   (10),,..,,,.1,2,3
   Start traction roller, adjust the traction roller spacing by hand wheel, press the slider to adjust traction and belt speed .Press the left and right arrow button to do the speed fine-tuning for traction and belt .Press the "Left" and "right" buttons to adjust the overall "left" and "right" of the conveyor belt. Press the "rise" and "fall" buttons to make the overall "conveyor belt" rise and fall to the appropriate position.Start the fan group 1 ,2,3 respectively .
   (11),,,2min10r/min,,,,;After the experiment, stop the motor of pellet feeder and then stop the stirring motor, reduce the speed of extruder to 10r/min after 2min, stop the motor of powder feeder when the material is no longer extruded from the die mouth, stop the heating, disconnect the software communication, and prepare to clean the die and extruder
   (12)PVC,,();; Push away the PVC sheet forming machine, remove all connecting lines, loosen the screw of the mold first (to prevent the mold from escaping from the extruder is not easy to loosen the screw) and then push away the mold for cleaning ,Remove transition plate ,confluent core and clean
   (13),,,,;Lift the feeders by hand, remove the fixing plates on both sides of the  barrel, separate the barrel, pull out the screw, and clean the screw and barrel
   (14) ,;After cleaning, install in reverse order for the next experiment
   
   
    

   Conical twin-screw extrusion experiment:

   
   :Operation process and precautions
   (1),,,;Familiar with the working principle, technical specification and relevant regulations of installation, use and cleaning of conical twin-screw extrusion platform .
   (2),,.,PLC.Make sure that the connection of RM-600C main unit power line, communication line,PC power line is correct .If the white power indicator on the rear panel is on, the power supply is normal. If the green indicator on the front panel is on, the PLC is running normally(see the video)
   (3),,,,;Connect extruder with the main unit, then connect the mold, and make sure that the temperature sensor wires, heating wires and air pipe are correctly connected
8. PVC,,,.Ensure that the power cable of the PVC sheet forming machine is properly connected and the water inlet and outlet pipes are properly connected. The power cable of the hot /cold water machine is correctly connected, and the water in the water tank is at the normal water level
9. ,;,,,
10. Start the computer and double-click the control software of the rheometer,Select the extruder platform, connect the communication, set the extrusion temperature of each area, and click Heating
11. ,,.Turn on the hot /cold water machine, set the water temperature, start the motor pump and air compressor
12. ,700Nm,P120Mpa().10min;Ensure that the software safety function is enabled, the maximum torque is 700Nm, and the maximum pressure P1 is 20Mpa(other pressure values are invalid ,they are reserved for future expansion functions). Prepare the experiment after the temperature reaches the set temperature and is stable for 10min.
13. (8).1400r/min,(400r/min),10r/min,1min35r/min,,.,.;
    Add the materials to be tested in the hopper .The stirring motor is operated at a maximum speed of 1400R /min, the particle feeder motor is operated at a low speed (such as 400R /min), and the powder feeder motor is started at a low speed (such as 10R /min). After 1 minute, the speed of the powder feeder motor is increased to 35R /min. The torque and pressure changes during extrusion are observed, and the speed of the powder feeder motor and particle feeding quantity are adjusted appropriately .When the pressure value of the machine starts to increase a little, it means that the materials have reached the extruder neck. At this time, pay special attention to observe the change of torque and pressure value.
    (9),PVC.,,.PVC,.When the material is smoothly extruded from the Die head, it is necessary to push the PVC sheet forming machine close to the Die head. During the process of pushing, Observe the distance between the traction roller and the mold at all times to avoid scratches or damage caused by the traction roller touching the mold.After confirming the position of the PVC sheet forming machine, lock the universal wheel
    (10),,..,,,.1,2,3
    Start traction roller, adjust the traction roller spacing by hand wheel, press the slider to adjust traction and belt speed .Press the left and right arrow button to do the speed fine-tuning for traction and belt .Press the "Left" and "right" buttons to adjust the overall "left" and "right" of the conveyor belt. Press the "rise" and "fall" buttons to make the overall "conveyor belt" rise and fall to the appropriate position.Start the fan group 1 ,2,3 respectively .
    (11),,,2min10r/min,,,,;After the experiment, stop the motor of pellet feeder and then stop the stirring motor, reduce the speed of extruder to 10r/min after 2min, stop the motor of powder feeder when the material is no longer extruded from the die mouth, stop the heating, disconnect the software communication, and prepare to clean the die and extruder
    (12)PVC,,();; Push away the PVC sheet forming machine, remove all connecting lines, loosen the screw of the mold first (to prevent the mold from escaping from the extruder is not easy to loosen the screw) and then push away the mold for cleaning ,Remove transition plate ,confluent core and clean
    (13),,,,;Lift the feeders by hand, remove the fixing plates on both sides of the barrel, separate the barrel, pull out the screw, and clean the screw and barrel
    (14) ,;After cleaning, install in reverse order for the next experiment