I.Equipment Overview:
Precision three-layer laboratory blown film machine consists of three 20 single-screw extruders, three-layer blown film die head blown film auxiliary machine and PLC centralized control system. Plastic raw material is melted and plasticized and extruded by one extruder, and then blown into film with independently adjustable width, thickness and layer ratio by sleeve type die head.
II.Description:
The product integrates the company’s precision extrusion technology and blown film molding technology, with convenient control and adjustment of stable performance, wide applicability of raw materials and less material, small footprint, etc., especially suitable for laboratory environments, is the enterprise and universities, research institutes, research and development of new materials, new formulas, new processes, a powerful tool.
III.Primary Configuration:
Extruder Section |
|
Maximum blown film width |
240mm |
Screw |
|
The longitudinal grooving of the feed section makes the extrusion volume increase, while the raw material is plasticized in the barrel for a long time, and the plasticizing effect is better. Low rotational speed can reduce the wear and tear of barrel and screw, prolonging the service life. |
|
Screw diameter(mm) |
Φ20(mm) |
Processing technology |
The screw is PE blown film special screw, tempering, nitriding treatment; spraying alloy; |
Nitriding depth |
﹥0.6 mm |
Nitriding hardness |
≥960 |
RV40 Turbo Reducer |
RV50 |
Screw L/D ratio |
30:1 |
Screw material |
Alloy steel |
Screw speed (r/min) |
110 |
Screen changer |
Manual duplex |
Heating ring |
Ordinary heating ring |
Die Head |
|
Die head features: the die head for the internal single-layer runner structure, designed for degradation of material products, the mold runner uniformity, no dead ends, improve the fluidity of the melt in the mold, effectively solve the problem of material retention in the mold, so that the molded film products have a good surface finish and transparency. |
|
Diameter of mold head |
Φ120(mm) |
Die opening clearance |
2 mm |
Diameter of wind ring |
300mm |
Main Motor |
1000W servo 2.4N |
24V DC fan |
250W |
Suitable material |
PBAT/PLA/PE |
Tractor Frame Section |
|
Turbo gear motor integrated machine |
60W |
Traction roller length |
250mm |
Traction roller diameter |
Φ60 |
Traction pressure roller length |
250mm |
Winding Section |
|
Single Winding |
Single Winding |
Winding method |
Parallel winding |
Thickness of rolled wallboard |
12mm |
Roller Diameter |
Φ80 |
Machine Size |
|
Length×Width×Height |
1600x500x1980 |
Capacity |
5KG/hour |
Distribution Box Section |
|
Host servo |
1000 servo 2.4N |
Traction DC speed control motor |
60W |
Temperature Control |
5-way temperature control module |
Solid State Relay |
5-way |
Relay |
— |
Air switch |
— |
Push button switch |
— |
LED light |
35W |
© Dongguan Zhongli Instrument Technology Co., Ltd.
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