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Introduction:
PET Casting Film Machine is mainly composed of the main drive motor, transmission device, extrusion device, hopper, electronic control system, casting die head, two roll calender and so on.
Its working principle is: the logistics from the hopper into the plasticization and extrusion through the extrusion device into the flow state, and then out of the main engine through the die head, through the two-roll calender
Application:
Applicable materials are PP, PE, TPU, and other thermoplastic casting grade materials
New material formulation research and development
Material ductility test
Optimization of casting process parameters
Technical parameters:
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Single screw plastic extruder |
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Main motor |
3.7KW |
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Frequency converter |
3.7w |
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Frame |
welded by section steel, and annealed to eliminate stress, with high rigidity, not easy to deformation |
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Program control system |
automatic PLC program control can directly display the temperature, screw speed, traction winding speed, etc., all parameters can be set and controlled at will) English interface can be switched at any time |
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PLC touch screen size |
10 inches |
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Barrel and screw |
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Output |
1-5Kg/h |
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Screw diameter |
25mm |
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Screw length ratio diameter |
28:1 |
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Screw speed |
0~95r/min |
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Screw material |
38CrMoAlA nitride steel |
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nitriding layer depth |
0.4 ~ 0.7mm |
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nitriding hardness |
850HV |
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Screw edge surface roughness |
0.4um |
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Inner surface roughness of cylinder |
0.4um |
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Melt pressure |
0~30mpa high precision melt pressure sensor to monitor the pressure change of the head |
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Heating system |
|
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Temperature range |
normal temperature ~300℃ |
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Heating zone |
7 zone heater, screw 4 zone heater, die head 3 zone heating. External stainless steel safety hood |
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Heating power |
About 7KW |
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Cooling plant |
|
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Cooling with 3 groups of fans, screw 3 zone fan cooling |
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Fan power supply |
3 ~ AC380V,50HZ |
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Cooling fan power |
50W |
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casting unit |
Hanger type casting die head |
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Runner |
coat hanger runner |
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Width of die head |
300mm |
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Film width |
about 250mm (depending on the material) |
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Film thickness |
0.03-0.1mm (depending on the material |
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Adjusting mode of die lip |
nut pressing type, manual adjustment |
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Runner form |
hanger runner |
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Die head material |
domestic 5CrNiMo alloy steel and heat treatment |
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Fasteners (screws) |
12.9 high strength |
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Polishing accuracy |
die lip surface polishing accuracy 0.02-0.04 (um),(other surface polishing accuracy 0.04-0.05um) |
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Plating |
die head flow surface hard chrome plating treatment, thickness of 0.03-0.04mm, hardness of 60-65HRC, outer surface chromium plating thickness of 0.01-0.02mm |
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Installation mode |
extrusion installation |
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Size of traction roller |
Ø150×L320mm *2 (can be cooled by tap water)
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Speed of traction roller |
0~30r/min |
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Traction roller motor |
120W*2 sets |
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Cut waste edge |
equipped with waste edge cutting tool, cutting tool spacing can be adjusted, beautiful and safe. |
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Reel group |
|
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Size of winding roll |
Ø80×L320mm |
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Winding motor |
120W (friction winding) |
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Winding speed |
0~60r/min |
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Power |
AC380V, three-phase five-wire |
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Main machine volume |
1200*1000*1200mm & 1500*500*1500mm |
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Weight |
about 900kg |
Spare parts:
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Name |
Qty |
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Scissors |
1 |
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Bamboo scraper |
2 |
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Cleaning appliance |
1 |
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Gloves |
10 |
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Maintenance tool (Hex wrench) |
1 |
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Tool box |
1 |
Feature:
Extrusion device: barrel and screw are the key parts of this machine. Plasticizing and extrusion of materials are carried out here. The cylinder and screw are made of high quality nitriding steel 38CrMoALA. The surface has been treated with gas nitriding for a week. It has good mechanical properties such as high hardness, wear resistance and corrosion resistance, which greatly prolonging its service life
1, the screw adopts the most advanced alloy spraying technology, precision machining, higher hardness, better corrosion resistance, long life.
2, screw plasticizing ability, uniform temperature distribution, automatic temperature control, smooth film bright uniform products good performance.
3, can respond quickly, automatic operation can be fast and stable.
4, replacement, can be easily operated, and can be quickly stable.
5, can accurately display, has relatively high control precision.
6, man-machine interface operation, Chinese display, the interface is simple and clear.
7, simple operation, easy to switch between manual and automatic.
8, the machine structure is compact, smooth operation, single arm structure, economic and practical.
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