Lithium battery pole piece one-dividing-into-two closed-loop rectifying and slitting method and system

Abstract

The invention discloses a lithium battery pole piece one-dividing-into-two closed-loop rectifying and slitting method and system based on development and design of the one-dividing-into-two slitting process. A rectifying system, a slitting system, a measuring system, a labeling system and a rewinding system are sequentially arranged according to the assembly line sequence, and communication and linkage among the rectifying system, the slitting system, the measuring system, the labeling system and the rewinding system are related and coordinated through a communication and linkage system to form closed-loop operation. The width of the slit pole piece is measured, and linkage feedback correction is conducted; and in the whole process, the slitting precision of the lithium battery pole pieceis well ensured, once the unqualified condition of the slit pole piece is measured, automatic rectifying can be timely conducted, and the unqualified position can be automatically identified.

Description

technical field [0001] The invention relates to a lithium battery pole piece cutting technology, in particular to a method and system for dividing a lithium battery pole piece into two closed-loop deflection correction and cutting. Background technique [0002] Based on the current slitting process of the lithium battery slitting machine, the correction position of the double correction system is manually adjusted to ensure the consistency of the slitting width on both sides; there are many problems in the use of this method. One is manual adjustment. The position accuracy is not high, and the adjustment by different people will have different effects, and the product consistency is poor; the second is to measure the pole piece width after slitting and can only be manually intercepted after the shutdown and offline measurement, which affects the production efficiency and product quality. Stability; the third is to manually measure the width dimension out of tolerance and the...

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Problems solved by technology

[0002] Based on the current slitting process of the lithium battery slitting machine, the correction position of the double correction system is manually adjusted to ensure the consistency of the slitting width on both sides; there are many problems in the use of this method. One is manual adjustment. The position accuracy is not high, and the adjustment by different people will have different effects, and the product consistency is poor; the second is to measure the pole piece width after slitting and can only be manually intercepted after the shutdown and offline measurement, which affects the production efficiency and product quality. Stability; the third is to manually measure the width dimension out of tolerance and then manually adjust the correction sensor to correct it. This process is complicated to adjust and needs to be shut down and turned on several times to complete the adjustment, and the width difference accuracy on both sides can only be controlled within ±0.5mm. ; Fourth, it is impossible to find and detect all pole pieces whose pole piece width is out of tolerance after slitting

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