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Method and equipment for producing bidirectional stretching plastic film

A plastic film, biaxial stretching technology, applied in the field of plastic processing, can solve the problems of high product cost, high price, complicated process, etc., and achieve the effect of simplifying the production process and reducing the price of equipment

Inactive Publication Date: 2002-12-18
汕头市江鸿塑胶设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Existing biaxially stretched plastic films obtain a certain thickness of sheet film by blow molding or casting, and then fully stretch the film transversely through a transverse stretching device. This kind of equipment is expensive, the process is complicated, and the product cost is high.

Method used

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  • Method and equipment for producing bidirectional stretching plastic film
  • Method and equipment for producing bidirectional stretching plastic film
  • Method and equipment for producing bidirectional stretching plastic film

Examples

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Embodiment Construction

[0012] The equipment for producing biaxially stretched plastic films provided by the present invention is designed in this way: it includes a film extruding device, a stretching traction device, a cooling device, a platform winding device and an electrical control device, etc., and is characterized in that: Biaxial stretching rotary heating devices 11 and 12 for film biaxial stretching are arranged on the upper part of the pulling device.

[0013] Below in conjunction with accompanying drawing, the method for biaxially stretched plastic film provided by the present invention is further described:

[0014] After the blank enters from the hopper 1, it is melted and extruded by the extruder 2, and the film head adapter 3 introduces the melted and kneaded plastic of the extruder into the bubble tube die 4, and the bubble tube die 4 extrudes the molten plastic For the membrane tubular. The plastic film tube is led out from the die head by the first clamp roller 6, and the thicknes...

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Abstract

The present invention discloses a method for producing two-way stretched plastic film and equipment, including the procedures of extrusion, blowing-up and drawing, edge-cutting and film-breaking and film-rolling. It is characterized by that in the blowing-up and drawing procedure the plastic film tube discharged from extrusion procedure can be pulled to the upper portion of tower frame, reheated to high-elastic drawable temp.,and the proper qantity of air can be charged into the tube film, then the tube film is longitudinally progressively and quickly drawn and laterally stretched toward bothsides, then heat-set. Said invention simplifies production process, and reduces cost of equipment.

Description

technical field [0001] The invention relates to the technical field of plastic processing, and more specifically relates to a method and equipment for producing biaxially stretched plastic films. Background technique [0002] In the existing biaxially stretched plastic film, after a sheet film of a certain thickness is obtained by blow molding or casting, the film is fully stretched transversely through a transverse stretching device. This kind of equipment is expensive, the process is complicated, and the product cost is high. Contents of the invention [0003] The object of the present invention is to provide a method and equipment for producing biaxially stretched plastic film with simple process. [0004] The method for producing biaxially stretched plastic film provided by the present invention is designed like this: [0005] A method for producing a biaxially stretched plastic film, comprising processes such as extrusion, inflation stretching, edge cutting, film bre...

Claims

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Application Information

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IPC IPC(8): B29C55/28
Inventor 陈诗明
Owner 汕头市江鸿塑胶设备有限公司
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