Stacking machine for stacked power battery and its pressing mechanism

Abstract

The invention provides a lamination machine for lamination type power battery and its tablet pressing mechanism. The tablet pressing mechanism includes a bearing plate, a transmission unit mounted on the bearing plate, a motor, a first plate which is fixedly sleeved on a drive shaft of the motor. A driving wheel and a pressing piece for pressing the pole piece and the diaphragm of the laminated power battery. The transmission unit includes: a first sliding rail arranged perpendicular to the plane where the bearing plate is located; a first sliding rail arranged on the first sliding rail The slider, the first slider is slidable along the first sliding rail; the lever assembly is arranged on the bearing plate, the lever assembly includes a first support seat fixed on the bearing plate and a lever whose middle part is rotatably connected with the first support seat, Both ends of the lever can tilt up and down relative to the first support base, and one end of the lever is used to push the first sliding block to slide; it is connected to the first restoring elastic piece between the lever and the bearing plate. The efficiency of the tablet pressing mechanism of the stacking machine for the aforementioned stacked power battery is high.

Description

【Technical field】 [0001] The invention relates to a manufacturing equipment of a stacked power battery, in particular to a stacking machine and a pressing mechanism for a stacked power battery. 【Background technique】 [0002] The laminated power battery is composed of diaphragm, negative electrode sheet, diaphragm, positive electrode sheet, diaphragm, negative electrode sheet, diaphragm, positive electrode sheet, and diaphragm in this order. Laminating the diaphragm and electrode sheet in sequence is the main manufacturing method of power batteries at present. [0003] After the battery core is shelled, the bare battery cell is 10 such as figure 1 As shown, the separator 11 is in a Z shape, and the positive electrode sheets 13 and the negative electrode sheets 15 are alternately overlapped in sequence. During the stacking process, the positive electrode sheet 13, the negative electrode sheet 15 and the diaphragm 11 are alternately stacked up, and the four pressing sheets 20...

AI Technical Summary

Problems solved by technology

Since the cylinders 31 and 32 need to realize four actions, the process takes 0.8 to 1 second. This process must be carried out once in each lamination, so the efficiency of the whole machine is limited.

Moreover, when the cylinders 31, 32 are used to drive the pressing piece 20, the strokes of the cylinders 31, 32 are constant, causing the pressing piece 20 to abut against the pole piece of the laminated power battery when the pressing piece 20 is pulled out, and the pole piece is rubbed against the pole pieces during the pulling out of the pressing piece 20. sheet, which will damage the pole piece to a certain extent and reduce the quality of the battery

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