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Rolling needle

A technology of rolling needles and needle bodies, which is applied in the direction of sustainable manufacturing/processing, electrochemical generators, electrical components, etc., can solve the problems of inner diaphragm discount, tension fluctuation, and inability to control the direction of movement of the inner diaphragm, and achieve improved Production efficiency and the effect of less tension fluctuation

Pending Publication Date: 2017-07-25
SHENZHEN GEESUN INTELLIGENT TECHNOLOGY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The tension of these two structures fluctuates all the time due to the inconsistency of the curvature of the shape during winding, which is difficult to measure and control; the feeding direction is perpendicular to the direction of the separator, and the cells are flattened after the winding and blanking. The movement direction of the innermost diaphragm cannot be controlled, which will cause the inner diaphragm to be discounted

Method used

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Embodiment Construction

[0028] The present application will be described in further detail below through specific embodiments in conjunction with the accompanying drawings. The present application can be implemented in many different forms, and is not limited to the implementation manner described in this embodiment. The purpose of providing the following specific embodiments is to facilitate a clearer and more thorough understanding of the disclosure of the present application, wherein the words indicating orientation such as up, down, left, and right are only for the positions of the structures shown in the corresponding drawings.

[0029] However, those skilled in the art may recognize that description of one or more of the specific details may be omitted, or other methods, components or materials may also be used. In some instances, some implementations were not described or described in detail.

[0030] In addition, the technical features and technical solutions described herein can also be com...

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Abstract

The invention discloses a rolling needle. The rolling needle comprises a left needle body and a right needle body in parallel arrangement on the left side and the right side, an upper needle body and a lower needle body in parallel arrangement up and down, a clamping gap formed between the left needle body and the right needle body, a left-right needle body displacement driving device for driving the left needle body and the right needle body to move away from each other or close to each other along the left-right direction, and an up-down needle body displacement driving device for driving the upper needle body and the lower needle body to move away from each other or close to each other along the up-down direction; clamping teeth positioned at the position of the clamping gap are arranged on the left needle body and the right needle body respectively; and circular arc-shaped outer surfaces, with the same semi-diameter, which correspond to one another are arranged on the left needle body, the right needle body, the upper needle body and the lower needle body respectively. The rolling needle has a circular outer contour, a membrane and pole pieces are wound according to the circular outer contour respectively during winding, the tension fluctuation is low, too great vibration cannot be caused for the pole pieces, and the production efficiency is greatly improved.

Description

technical field [0001] The application relates to the field of lithium battery production equipment, in particular to a winding needle, which can be used for winding processing of power lithium battery core packs. Background technique [0002] In the existing lithium battery equipment, the winding needle of the winding machine is an important part of battery winding, and the shape of the winding needle affects the winding speed of the battery and the quality of the battery core. Most of the current winding machines adopt elliptical and flat rhombic needle rolling mechanisms. The tension of these two structures fluctuates all the time due to the inconsistency of the curvature of the shape during winding, which is difficult to measure and control; the feeding direction is perpendicular to the direction of the separator, and the cells are flattened after the winding and blanking. The movement direction of the innermost diaphragm cannot be controlled, which will cause the inner...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/0587H01M10/058H01M10/04H01M10/0525
CPCH01M10/04H01M10/0525H01M10/058H01M10/0587Y02E60/10Y02P70/50
Inventor 王建东袁树信魏宏生阳如坤
Owner SHENZHEN GEESUN INTELLIGENT TECHNOLOGY CO LTD
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