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Breathable film production line through blow molding method

A technology of breathable film and production line, applied in the field of breathable film, can solve the problems of difficulty in further reducing production cost, large consumption of manpower and material resources, and difficulty in improving production efficiency, so as to solve the problems of difficulty in controlling air permeability, saving manpower and material resources, and improving production efficiency Improved effect

Active Publication Date: 2019-12-03
CHONGQING HETAI PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This will lead to longer production time, difficulty in improving production efficiency, greater consumption of manpower and material resources, and difficulty in further reducing production costs
In addition, when the traditional production line produces the breathable film, the air permeability of the breathable film will often change during the stretching process. Since different breathable film products have different requirements for the air permeability, how to effectively control the air permeability is also an important issue. Frequently encountered problems in prior art

Method used

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  • Breathable film production line through blow molding method
  • Breathable film production line through blow molding method
  • Breathable film production line through blow molding method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A blow molding method breathable film production line, such as Figure 1-2 As shown, it includes a gas-permeable film blowing device 2, a longitudinal stretching device 3 and a winding device 4 arranged in sequence along the direction of travel of the gas-permeable film 1, and also includes a side-splitting traction device 5 and two downstream stretching devices 3. The deep embossing device 6 , the edge separation traction device 5 divides the breathable membrane 1 into two paths and transports them to the two deep embossing devices 6 respectively. The deep embossing device 6 includes a deep embossing device body 61, a deep embossing rubber roller 62 arranged on the deep embossing device body 61, and a deep embossing pattern roller arranged below the deep embossing rubber roller 62. 63. The first cooling roll 64 and the second cooling roll 65 arranged downstream of the deep embossing roll 63. The deep embossing device 6 also includes a guide roller 66 for passing the b...

Embodiment 2

[0022] On the basis of any scheme in Example 1, such as image 3 As shown, the longitudinal stretching device 3 includes a longitudinal stretching device body 31 and a preheating roller 32, a pre-stretching roller 33, a first stretching roller 33, a A stretching roll 34, the second stretching roll 35, the first shaping roll 36, the second shaping roll 37, the third cooling roll 38 and the fourth cooling roll 39, the longitudinal stretching device body 31 is also provided with The chute 310 , the installation shaft of the first stretching roller 34 or the second stretching roller 35 is movably installed on the chute 310 .

[0023] In actual production, we found that, for the air-permeable film, the gap between the stretching rollers has a correlation with the air permeability, and the enlarged gap causes the gas permeability to increase, so by setting the chute 310, the first stretching roller can be adjusted. 34 and the gap between the second stretching roll 35 is effectively...

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PUM

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Abstract

The invention discloses a breathable film production line through a blow molding method. The production line comprises a breathable film blow molding device, a longitudinal stretching device and a winding device, and further comprises an edge dividing traction device and two deep embossing devices, and the edge dividing traction device divides a breathable film into two paths and conveys the breathable film to the two deep embossing devices; each deep embossing device comprises a deep embossing rubber roller arranged on the deep embossing device body, a deep embossing roller arranged below thedeep embossing rubber roller, a first cooling roller and a second cooling roller, wherein the first cooling roller and the second cooling roller are arranged on the downstream portion of the deep embossing roller. Each deep embossing device further comprises a guide roller, and the breathable film can be conveyed to the first cooling rollers through the guide rollers. According to the method, thedeep embossing procedure and the breathable film production procedure are combined, the embossing mode can be flexibly selected, the air permeability can be effectively controlled, and the application range is wide.

Description

technical field [0001] The invention belongs to the technical field of breathable membranes, and in particular relates to a blow molding method breathable membrane production line. Background technique [0002] In the prior art, blow molding is used to produce breathable membranes. When deep embossing is required, a step-by-step method is usually used, that is, the breathable membrane is first produced and rolled, and then enters the deep embossing process separately. This will lead to longer production time, difficulty in improving production efficiency, greater consumption of manpower and material resources, and difficulty in further reducing production costs. In addition, when the traditional production line produces the breathable film, the air permeability of the breathable film will often change during the stretching process. Since different breathable film products have different requirements for the air permeability, how to effectively control the air permeability is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C55/06B29C59/04B29C55/28B29C69/02
CPCB29C55/06B29C59/04B29C59/002B29C55/28B29C69/02
Inventor 王忠李良民秦家发
Owner CHONGQING HETAI PLASTIC