Winding tension reducing device and winding equipment

A technology of tension and mounting frame, which is applied in the direction of winding strips, transportation and packaging, thin material processing, etc., and can solve the problems of reducing winding tension and reducing pole piece winding tension.

Inactive Publication Date: 2020-05-19
GUANGDONG LYRIC ROBOT INTELLIGENT AUTOMATION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of this application is to provide a winding tension reducing device and

Method used

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  • Winding tension reducing device and winding equipment
  • Winding tension reducing device and winding equipment
  • Winding tension reducing device and winding equipment

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Experimental program
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Embodiment

[0036] At present, there are many kinds of lithium-ion battery preparations, among which square winding lithium-ion batteries are one of the main preparation methods selected by lithium battery factories because of the efficiency advantage of winding preparation.

[0037] In the winding process of the pole piece of the square wound battery, it is necessary to make the coil material (that is, the pole piece strip) have a large tension to ensure the uniformity of the inside of the wound product, but after the winding is completed, the release link is static. If the tension If it is too large, it will cause severe deformation of the coiled product. Since the tension is too small during winding, it is easy to cause poor winding uniformity, and the tension after winding is too high, which will cause serious deformation of the wound product. Therefore, low-tension winding of square wound batteries has always been an urgent problem to be solved in the lithium battery industry.

[003...

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PUM

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Abstract

The invention relates to the technical field of lithium ion battery manufacturing, in particular to a winding tension reducing device and winding equipment. The winding equipment comprises an unwinding device, a tension mechanism and a winding device which are sequentially arranged, the winding tension reducing device is arranged between the tension mechanism and the winding device, and comprisesa driving roller, a pressing roller and a torque driving mechanism, wherein the torque driving mechanism is used for driving the driving roller to rotate, and the pressing roller is used for clampinga coil by cooperating with the driving roller. The winding tension reducing device enables the coil to have tendency to be dragged by the driving roller in winding direction in a clamped state, so that the coil is enabled to maintain large tension transmission before passing through the driving roller, obtain relative acting force for counteracting tension after passing through the driving roller, and be wound after the tension is reduced to small tension, and the purpose of taking into account the internal uniformity and the product deformation of a battery product is achieved.

Description

technical field [0001] The present application relates to the technical field of lithium-ion battery manufacturing, and in particular, to a winding tension reducing device and winding equipment. Background technique [0002] In the winding process of the pole piece of the square wound battery, it is necessary to make the coil have a large tension to ensure the uniformity of the product inside, but after the winding is completed, the release link is static, and the tension is too high, which will cause serious deformation of the wound product, so In the case of winding with a large tension, how to reduce the winding tension is a difficult problem that the lithium battery industry needs to solve. Contents of the invention [0003] The present application aims to provide a winding tension reducing device and winding equipment to solve the problem of how to reduce the winding tension of pole pieces. [0004] The embodiment of the application is realized like this: [0005] I...

Claims

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Application Information

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IPC IPC(8): B65H23/188B65H23/26B65H20/02
CPCB65H20/02B65H23/1888B65H23/26B65H2515/31
Inventor 黄振奎冯钦凌周俊杰蔡海生
Owner GUANGDONG LYRIC ROBOT INTELLIGENT AUTOMATION CO LTD
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