Battery pole piece automatic punching machine and punching method thereof

Abstract

The invention provides a battery pole piece automatic punching machine. The battery pole piece automatic punching machine comprises a rack, a pole piece deviation correction unwinding device, a pole piece tension device, a punching transmission device, a pull device, a material collection device, a rolling device and a deviation correction fixed-length adjusting device, wherein the pole piece deviation correction unwinding device, the pole piece tension device, the punching transmission device, the pull device, the material collection device, the rolling device and the deviation correction fixed-length adjusting device are arranged on the rack. The pole piece deviation correction unwinding device is used for mounting of pole pieces. After being unwound, the pole pieces sequentially pass through the pole piece tension device, the rolling device, the deviation correction fixed-length adjusting device, the punching transmission device and the pull device. The pole piece tension device isused for adjusting the tension of the pole pieces. The rolling device is used for keeping the positions of the pole pieces. The pull device is used for pulling out a pole piece coil outwards. The deviation correction fixed-length adjusting device is used for correcting the positions of the pole pieces. The punching transmission device is used for punching the pole pieces by adopting a punching mold. The material collection device is arranged below the punching transmission device and used for collecting the punch-formed pole pieces. The battery pole piece automatic punching machine has the beneficial effects of being high in product consistency and production efficiency. The invention provides a punching method of the battery pole piece automatic punching machine.

Description

technical field [0001] The invention relates to the field of battery manufacturing equipment, in particular to an automatic battery pole piece punching machine for battery pole pieces and a punching method thereof. Background technique [0002] Lithium battery pole pieces are mostly formed by slitting and die-cutting methods, especially after die-cutting the pole piece with a laser knife, the pole piece has large burrs and is easy to drop powder. The lifespan is short, and the die-cut pole pieces cannot be collected. They can only be collected manually for the second time and stacked neatly to flow into the next process. The production efficiency is low and the labor consumption is large. Contents of the invention [0003] The object of the present invention is to provide an automatic battery pole piece punching machine and a punching method thereof, which can improve product consistency and production efficiency, thereby solving the above-mentioned technical problems. ...

AI Technical Summary

Problems solved by technology

[0002] Lithium battery pole pieces are mostly formed by slitting and die-cutting methods, especially after die-cutting the pole piece with a laser knife, the pole piece has large burrs and is easy to drop powder. The service life is short, and the die-cut pole pieces cannot be collected. They can only be collected manually for the second time and stacked neatly to flow into the next process. The production efficiency is low and the labor consumption is large.

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