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High-density cast film forming device

A molding device and casting film technology, which are applied to flat products, household appliances, other household appliances, etc., can solve the problems of surface adhesion of casting rolls, uneven film surface, uneven thickness, etc., and improve the surface smoothness, Simple structure and the effect of improving compactness

Inactive Publication Date: 2017-11-24
浙江聚彩精密设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a high-density casting film forming device for the deficiencies of the prior art. The liquid curtain is cooled and reversely coated with symmetrically arranged shaping rollers to form a polymeric film structure with uniform thickness and surface. The original casting film solves the technical problems of the casting roll surface sticking, uneven film surface and uneven thickness during the peeling process of the casting film in the prior art

Method used

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Examples

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Embodiment 1

[0037] Such as figure 1 , 2 As shown in and 3, a coating-type casting film forming mechanism includes a frame 1, a casting roll 3 that is rotatably mounted on the frame 1 to form a casting film 2, and also includes a feeding assembly 4 and a sizing assembly 5. The feeding assembly 4 is fixedly arranged on the frame 1, and solutions with different viscosities pass through the feeding assembly 4, forming a first liquid curtain 411 and a second liquid curtain 412 independent of each other in sequence below it. and the third liquid curtain 413; the sizing assembly 5 is located below the feeding assembly 4, which includes two horizontally arranged rotatably mounted on the frame 1 and set in contact with the liquid curtain group 41 A sizing roller 52, a solution channel 52 is formed between the sizing rollers 52, and the first liquid curtain 41, the second liquid curtain 42 and the third liquid curtain 43 pass through the solution channel 52 and the surface formed therebelow is in ...

Embodiment 2

[0039]The inventor believes that in order to better implement the technical solution, further specific implementation methods are necessary, so the inventor describes the second embodiment on the basis of the first embodiment.

[0040] Such as figure 1 , 2 As shown in and 3, a high-density casting film forming device includes a frame 1, a casting roll 3 that is rotatably mounted on the frame 1 to form a casting film 2, and also includes:

[0041] The feeding assembly 4, the feeding assembly 4 is fixedly arranged on the frame 1, the solutions with different viscosities pass through the feeding assembly 4, and form mutually independent liquid curtain groups 41 sequentially below it; and

[0042] The sizing assembly 5, the sizing assembly 5 is located below the feeding assembly 4, it includes the sizing rollers 52 installed on the frame 1 and symmetrically arranged on both sides of the liquid curtain group 41, between the two A flow channel 53 is formed between them. During the...

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Abstract

The invention relates to a high-density casting film forming device, comprising a frame, a casting roll, a feeding component and a setting component. The feeding component is fixedly arranged on the frame, and solutions with different viscosities pass through the feeding component , forming mutually independent liquid curtain groups in sequence below it, the shaping component is located below the feeding component, which includes a moving part and a shaping roller rotatably installed on the moving part to guide the liquid curtain group, the The setting roller is in intermittent contact with the liquid curtain group. During the contact between the two, the setting roller conducts guiding and forming treatment on the liquid curtain group; The cast film, which is the initial shape of the film structure, is formed by the casting roll, which solves the problems in the prior art that the surface of the casting roll is bonded, the surface of the film is uneven, and the precision of the produced film is not high during the peeling process of the cast film. question.

Description

technical field [0001] The invention belongs to the field of cast film production, in particular to a high-density cast film forming device. Background technique [0002] Polymer films have the advantages of excellent light transmission and interference properties, and are easy to become lighter and thinner. Therefore, films are widely used in many fields such as optical functional films. With the wide application of films in various industries, Its demand and quality requirements have also been further improved; the existing film production methods mainly include melt extrusion method and solution casting method. In the melt extrusion method, after the polymer with a solvent is heated and melted, extrusion The melt extrusion method has the advantages of high production efficiency and low cost, but its disadvantage is that it is difficult to precisely control the thickness of the film, and because extrusion causes fine stripes in the film. , so it is difficult to produce hi...

Claims

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Application Information

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IPC IPC(8): B29C41/26B29C41/32B29C41/36B29C41/46B29C41/34B29L7/00
CPCB29C41/26B29C41/32B29C41/34B29C41/36B29C41/46B29L2007/00
Inventor 黄招凤
Owner 浙江聚彩精密设备有限公司
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