Lithium battery pole piece punching and forming machine and its punching fine-tuning device

Abstract

The invention discloses a lithium battery electrode piece cutting and forming machine comprising a drive device, a transmission mechanism, a lifting frame and a cutting die. The cutting die comprises a die hanging rod, an upper die unit and a lower die unit; the drive device drives the lifting frame, the die hanging rod and the upper die unit to lift through the transmission mechanism; a cutting trimming device is arranged between the lifting frame and the die hanging rod. On one hand, the die hanging rod is fixed to an upper oblique block of the cutting trimming device, a lower oblique block is driven to move transversely by adjusting a trimming screw so as to drive the fitted upper oblique block to move vertically, the longitudinal movement of the die hanging rod is implemented, and the cutting height can be trimmed; on the other hand, a bearing shaft is arranged on an eccentric wheel as designed, the eccentric wheel is protected, and the service life is prolonged. In the whole moving process, the eccentric wheel is installed on the transmission shaft to rotate and rolls in a racetrack-shaped hole of a grooved wheel block to drive the grooved wheel block to move vertically; the entire operation is stable, impact is resisted, and noise is low.

Description

technical field [0001] The invention relates to the technology in the field of lithium battery production equipment, in particular to a lithium battery pole piece punching forming machine and a punching fine-tuning device. Background technique [0002] The stacked lithium battery is made of multi-layer positive and negative pole pieces. These pole pieces are always cut from the whole pole piece that has been coated and rolled. With the development of science and technology, in response to this problem, people have designed a pole piece cutting and forming process according to the steps of manual processing. There are mainly two types of cutting mechanisms in the market at present: one The servo drives the eccentric shaft to drive the connecting rod for punching (pole sheet punching and forming machine 201120444953.9). The main disadvantage of this device is that the connection between the eccentric shaft and the connecting rod is easy to wear and produce a gap, and the punch...

AI Technical Summary

Problems solved by technology

With the development of science and technology, in response to this problem, people have designed a pole piece cutting and forming process according to the steps of manual processing. There are mainly two types of cutting mechanisms in the market at present: one The servo drives the eccentric shaft to drive the connecting rod for punching (pole sheet punching and forming machine 201120444953.9). The main disadvantage of this device is that the connection between the eccentric shaft and the connecting rod is easy to wear and produce a gap, and the punching height of the device cannot be adjusted. The service life of the punching die is reduced. The other is a relatively simple cylinder that directly drives the die punching. The punching height is adjusted through a floating joint, which has low precision and is inconvenient to adjust. At the same time, the impact noise between the punching upper die and the lower die is large. , affecting the physical and mental health of the operator

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