Lamination stacking machine of laminated type power battery and piece pressing mechanism thereof

Abstract

The invention provides a lamination stacking machine of a laminated power battery and a piece pressing mechanism thereof. The piece pressing mechanism comprises a bearing plate, a transmission unit mounted on the bearing plate, motors, first driving wheels which are sleeved fixedly on drive shafts of the motors, pressing pieces which are used for pressing pole pieces and membranes of the laminated power battery, wherein the transmission unit comprises a first sliding rail which is vertical to a plane in which the bearing plate is positioned, a first sliding block which is arranged on the first sliding rail and is capable of sliding along the first sliding rail, a lever assembly and a first restoration elastic member connected between a lever and the bearing plate, wherein the lever assembly which is arranged at the bearing plate comprises a first supporting seat fixedly arranged at the bearing plate and the lever; the central section of the lever is rotatably connected with the first supporting seat, the two ends of the lever are tilted up and down relative to the first supporting seat, and one end of the lever is used for pushing the first sliding block to slide. The piece pressing mechanism of the lamination stacking machine of the laminated power battery, provided by the invention, has higher efficiency.

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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