Base band winding cylinder, unwinding roll replacing device and unwinding method
A reel and base tape technology, which is applied in the directions of winding strips, transportation and packaging, thin material processing, etc., can solve the problems that affect the effective improvement of product qualification rate, pole piece scrapping, and high experience requirements, so as to avoid the problem of substrate scrapping , to achieve the effect of using
Active Publication Date: 2020-06-23
CALB CO LTD
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Problems solved by technology
[0002] In the power battery manufacturing process, during the production process of lithium battery positive and negative pole pieces from the rolling process to the second slitting process, each roll of pole pieces will produce a certain amount of pole piece scrapping at the end of each process, while Under normal production conditions, pole piece scrapping due to coil change accounts for the largest proportion, and this kind of scrapping is inevitable, also known as "fixed loss". As a result, the pass rate of some processes cannot be further improved, which has become a limiting factor. Bottleneck for improving process pass rate
[0003] At present, in the production process of the pole piece from rolling to the second slitting process, there are two ways of automatic roll change and manual roll change. The method of automatic roll change / manual roll change is to set the roll diameter value of the pole roll To control the equipment to suspend the replacement of pole rolls, the range of cylindricity and circle jump caused by the difference in diameter of the roll and the cylindricity or the uneven thickness of the pole piece will lead to inaccurate and unstable measurement of the roll diameter of the equipment , so the fixed pole roll diameter value cannot control the timing of the equipment pause to replace the pole roll, which will bring the following problems: (1) Automatic control: the equipment pauses too early, and the remaining pole pieces of the roll are longer , resulting in a waste of pole pieces; the equipment is suspended too late, the pole pieces are separated from the reel and cause flying belts, and the equipment needs to be re-threaded and adjusted; (2) Manual control: production efficiency is reduced; operators need to judge, and experience requirements are high
[0004] Judging from the current production and processing process of the pole piece, the scrapping of coils will directly affect the effective improvement of the product qualification rate, and it is in contradiction with the production efficiency. Reduce production efficiency, and the stripping and scrapping of pole pieces on the reel also requires manpower
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[0028] Typical embodiments that embody the features and advantages of the present disclosure will be described in detail in the following description. It should be understood that the present disclosure can have various changes in different embodiments without departing from the scope of the present disclosure, and that the description and drawings therein are illustrative in nature and not intended to limit the present disclosure. public.
[0029] In the following description of various exemplary embodiments of the present disclosure, reference is made to the accompanying drawings, which form a part hereof, and in which are shown by way of example various exemplary structures, systems and procedures that may implement aspects of the present disclosure . It is to be understood that other specific arrangements of components, structures, exemplary devices, systems and steps may be utilized and structural and functional modifications may be made without departing from the scope ...
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The invention relates to the technical field of winding devices, and provides a base band winding cylinder, an unwinding roll replacing device and an unwinding method. The base band winding cylinder comprises a winding cylinder body and a base band, the base band is wound on the winding cylinder body, the base band comprises a first connecting end and a second connecting end, the first connectingend is connected with the winding cylinder body, the second connecting end is used for being connected with the base material, according to the provided base band winding cylinder, the base band is wound on the winding cylinder body, the base material is connected to the base band, after the base material is completely separated from the winding cylinder body, the base band can be wound on the winding cylinder body, compared with the prior art that a certain amount of base material remains on a winding cylinder, the provided base band replaces the remaining base material on the winding cylinder body, and the base material is used to the maximum degree.
Description
technical field [0001] The present disclosure relates to the technical field of winding devices, in particular to a base tape reel, an unwinding and changing device and an unwinding method. Background technique [0002] In the power battery manufacturing process, during the production process of lithium battery positive and negative pole pieces from the rolling process to the second slitting process, each roll of pole pieces will produce a certain amount of pole piece scrapping at the end of each process, while Under normal production conditions, pole piece scrapping due to coil change accounts for the largest proportion, and this kind of scrapping is inevitable, also known as "fixed loss". As a result, the pass rate of some processes cannot be further improved, which has become a limiting factor. The bottleneck of improving the pass rate of the process. [0003] At present, in the production process of the pole piece from rolling to the second slitting process, there are t...
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IPC IPC(8): B65H16/00B65H75/10B65H26/00B65H19/18
CPCB65H16/00B65H75/10B65H26/00B65H19/18
Inventor 赵致富
Owner CALB CO LTD