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Extrusion compounding equipment and process for battery packaging aluminum-plastic composite film

An aluminum-plastic composite film and extrusion compounding technology, which is applied to battery pack parts, circuits, electrical components, etc., can solve the problems of large elongation and wrinkles of materials, improve peel strength, compensate for slack, and reduce coating The effect of length

Active Publication Date: 2021-07-27
HUILONG PLASTICS MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide an extrusion compounding equipment for battery packaging aluminum-plastic composite film, which can effectively solve the problem of wrinkling caused by large material elongation in the current thermal process problem, improve the quality of aluminum-plastic composite film

Method used

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  • Extrusion compounding equipment and process for battery packaging aluminum-plastic composite film
  • Extrusion compounding equipment and process for battery packaging aluminum-plastic composite film

Examples

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Embodiment 1

[0031] In this embodiment, a kind of extrusion composite equipment for battery packaging aluminum-plastic composite film, such as figure 1 As shown, it includes an unwinding mechanism a, a corona device b, a preheating device c, a composite device f, a cooling device g, and a winding mechanism h connected in sequence along the conveying direction of the aluminum foil layer. The composite device is also provided with at least one extruder Extruder d (in this embodiment, three extruders are used, and the three extruders are jointly connected to a co-extrusion die head e, and the output end of the co-extrusion die head is located above the composite part of the compound device). That is to say, when a single extruder is used to extrude a polymer material film layer, the main component of the polymer material film layer is a single material or a mixture of multiple materials, forming a single-layer material layer after molding; When two extruders jointly extrude the polymer materi...

Embodiment 2

[0042] Compared with Example 1, this embodiment is an extrusion compounding process of aluminum-plastic composite film for battery packaging. Add the second unwinding mechanism to release the second polymer material film layer, and the aluminum foil, the polymer material film layer extruded in step (2) and the second polymer material film layer are compounded by the composite roller to form an AL / extrusion high-score The three-layer composite film of film / second polymer film is cooled and rolled.

[0043] In addition, in step (1), before the corona treatment is performed on the surface of the aluminum foil layer, after the aluminum foil layer is released by the unwinding mechanism, deviation correction treatment and electrostatic dust collection treatment are also performed in sequence.

[0044] After the aluminum-plastic composite film is formed and cooled, the thickness of the aluminum-plastic composite film can be detected online by using a thickness gauge, and the surface ...

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Abstract

The invention discloses extrusion compounding equipment and process for a battery packaging aluminum-plastic composite film. The equipment comprises an unwinding mechanism, a corona device, a preheating device, a compounding device, a cooling device and a winding mechanism which are sequentially connected in the conveying direction of an aluminum foil layer, wherein at least one extruder is further arranged at the compounding device, the preheating device comprises a plurality of heating rollers, the temperature of the roller surface of each heating roller is gradually increased in the conveying direction of the aluminum foil layer, and an independent heating temperature area is formed at each heating roller. According to the process, an aluminum foil layer is sequentially subjected to corona treatment and heating treatment while a high polymer material film layer is extruded; and then the heated aluminum foil layer and the extruded high polymer material film layer enter a compounding device together for compounding to form an aluminum-plastic composite film, and the aluminum-plastic composite film is rolled after being cooled. According to the invention, the problem of wrinkles caused by large elongation of the material can be effectively solved, the peel strength of the prepared aluminum-plastic composite film can be effectively improved, and the quality of the aluminum-plastic composite film is improved.

Description

technical field [0001] The invention relates to the technical field of packaging composite film manufacturing, in particular to an extrusion compounding equipment and process for battery packaging aluminum-plastic composite film. Background technique [0002] Aluminum foil has been widely used in the packaging industry due to its good barrier properties and low material cost. Based on the packaging barrier requirements, the thickness of aluminum foil commonly used in flexible packaging is 6.3 μm, but it is limited by the rolling process, rolling oil quality, rolling roll surface condition, process operation and production site environment in the production of aluminum foil. Generally, aluminum foil with a thickness below 20 μm will inevitably have some defects, such as pinholes. In order to improve the moisture resistance, gas barrier and shading properties of the packaging composite film, in some special applications (such as aluminum-plastic composite film for battery pac...

Claims

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Application Information

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IPC IPC(8): B32B37/06B32B37/08B32B37/10B32B38/00B29C48/00B29C48/08H01M50/124
CPCB32B37/06B32B37/08B32B37/10B32B38/0008B29C48/0014B29C48/0021B29C48/08
Inventor 梁艳艳高保利许锦才黄伟伦
Owner HUILONG PLASTICS MACHINERY
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