Square aluminum shell battery wide surface film coating device and method

Abstract

The embodiment of the invention provides a wide surface film coating device for a square aluminum shell battery. A material pushing assembly is connected with a film coating assembly through a positioning assembly; the film wrapping assembly comprises a film wrapping machine main body, and a film pressing strip, a film pulling roller and a film wrapping roller assembly which are arranged on the film wrapping machine main body; the film pressing strip is arranged at an insulating film outlet of the film wrapping machine body, the film pulling roller is arranged below the film pressing strip, and the film wrapping roller assembly is arranged on the side, away from the positioning assembly, of the film pressing strip. According to the invention, a worker or a manipulator is only needed to place the insulating film on the positioning assembly, the insulating film is automatically unwound and prepared in cooperation with the film coating assembly, the bottom of the battery can be coated in the film coating process, time and space can be greatly saved, and bubbles are reduced. The device can be compatible with concentric-square-shaped film coating and U-shaped film coating, the batteries can be manually adjusted left and right according to different sizes of the batteries, universality is achieved, and the production cost of manufacturers can be effectively reduced.

Description

technical field [0001] The invention relates to the field of automatic packaging, in particular to a device and method for wide-coating a square aluminum case battery. Background technique [0002] In the production process of the square lithium-ion battery, an insulating film needs to be coated on the surface of the battery casing. The conventional coating method is that after the insulating film U-shaped covers the front and rear surfaces and the bottom surface of the casing, the insulating film is drawn from the front and rear surfaces and the bottom surface of the casing. respectively bend to the side of the shell and cover the side of the shell. In the related art, cutouts are usually made on the insulating film at the corresponding positions of the sharp corners of the casing, but it is easy to cause gaps in the insulating film at the sharp corners of the casing, and moisture in the air may infiltrate through the gaps, causing the battery to fail to pass through the ju...

AI Technical Summary

Problems solved by technology

In terms of process requirements, it is difficult to achieve the completeness and consistency of the product by a single person. The simple and simple manual technology has the disadvantages of high labor intensity, high labor cost and low efficiency. It is only suitable for small-scale workshops and pre-injection coatings. (Need to be disassembled later) Trial production

[0004] In addition, the cost of manual coating is high, the efficiency is low, and it is difficult to control the quality of the product, and it is prone to uneven quality. When applied to electronic products, it will affect the stability and service life of electronic products

A lot of labor is required and the efficiency is low, and the quality and precision of the prepared products are uncontrollable

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