Winding needle device of winding machine
A winding machine and needle winding technology, applied in battery assembly, climate sustainability, final product manufacturing, etc., can solve the problems affecting battery winding quality, excessive fluctuation of pole piece tension, and difficulty in tension control. The effect of improving product quality, reducing tension fluctuation and improving processing efficiency
Active Publication Date: 2018-09-18
深圳市大族锂电智能装备有限公司
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Problems solved by technology
[0004] The technical problem to be solved by the present invention is to provide a needle winding device of a winding machine, which aims to solve the problem that the sudden change in the line speed of the needle winding device of the existing winding machine causes excessive tension fluctuations of the pole piece, difficulty in tension control, and affecting the battery life. The problem of winding quality
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[0023] Now in conjunction with the accompanying drawings, the preferred embodiments of the present invention will be described in detail.
[0024] Such as figure 2 with 3 As shown, the present invention provides a needle winding device for a winding machine, which includes a circular needle 10 formed by splicing multiple carriers and a drive mechanism 20 for driving the movement of the carrier. The drive mechanism 20 is in transmission connection with the multiple carriers. And it can drive a plurality of carriers to move to form the oval rolling pin 10 . Since the winding needle 10 is formed by splicing multiple carriers, it maintains a circular state during the winding of the pole piece. After the winding is finished, the carrier is driven by the driving mechanism 20 to make the winding needle 10 change from a circle to an ellipse, and become the shape required by the product to meet the process requirements. Since the winding process is in a circular state, the tension ...
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The invention relates to a winding needle device of a winding machine. The winding needle device comprises a round winding needle and a driving mechanism, wherein the round winding needle is formed bysplicing a plurality of carriers, the driving mechanism is used for driving the carriers to move, is in transmission connection with the plurality of carriers and can be used for driving the plurality of carriers to move to form an oval winding needle, and each carrier is in a T shape. The winding needle of the winding needle device is formed by splicing the plurality of carriers, and a round state is maintained during the pole plate winding process; after winding is ended, the carriers are driven by the driving mechanism so that the winding needle becomes an oval shape from a round shape andbecomes to a shaped required by a product, and the process requirement is achieved; and since the winding process is in the round state, the tension fluctuation during the winding process can be reduced, the winding speed is increased, meanwhile, the product quality also can be improved, and the process efficiency is greatly improved.
Description
technical field [0001] The invention relates to the technical field of winding machines, in particular to a needle winding device of a winding machine. Background technique [0002] Since the final shape of the battery cell is square, in order to meet this requirement, the winding needles of domestic winding machine manufacturers are generally designed to be elliptical or diamond-shaped at this stage. The sheet tension fluctuates too much, the tension control is difficult, and the production performance of the equipment is low. [0003] Such as figure 1 As shown, the winding needle 1 is flat and close to an ellipse shape. If the main axis of the winding needle 1 is at a uniform angular velocity, the winding needle 1 is actually doing cam motion. The winding speed of the winding needle 1 is the periodic line speed change, and the tension will also change periodically. The change of tension directly affects the winding quality of the battery. How to control the tension fluc...
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IPC IPC(8): H01M10/04
CPCH01M10/0409Y02P70/50
Inventor 黄润生田丽华余良黄际祥李立李沛奇余林峰朱遂睿李巍姜明阳东平叶海平李日平周灵黄祥虎陈师光高云峰
Owner 深圳市大族锂电智能装备有限公司