Rubberizing device and rubberizing method thereof, cylindrical battery cell flaking winding machine

Abstract

The invention provides a rubberizing device and a rubberizing method thereof, a cylindrical battery cell flaking winding machine, and the rubberizing device comprises a connecting base which is provided with a first guide rail, a glue supplying unit, and a glue preparation unit, a cutting blade unit and a rubberizing unit which are all mounted on the connection base, wherein the glue preparation unit comprises a glue preparation roller and a glue pressing mechanism of which an output end moves in the manner of being opposite to or back to the glue preparation roller; the glue supplying unit comprises a glue supplying mechanism connected with the first guide rail in the manner of sliding, and a first driving mechanism connected between the connecting base and the glue supplying mechanism; the glue supplying mechanism can move along the first guide rail to a space between the glue pressing mechanism and the glue preparation roller; and the cutting blade unit comprises a cutting blade mounted on the connecting base in the manner of sliding, and the cutting blade unit, the glue preparation unit and the rubberizing unit are orderly arranged along a feeding direction of the glue supplying unit. The rubberizing method of the rubberizing device and the cylindrical battery cell flaking winding machine are also provided, and the rubberizing device, the rubberizing method of the rubberizing device and the cylindrical battery cell flaking winding machine all have the advantages of high production efficiency and can avoid that a battery cell is compacted too tightly in a rubberizing process.

Description

technical field [0001] The invention relates to the technical field of battery production, in particular to a gluing device, a gluing method for the gluing device, and a cylindrical cell sheet winding machine provided with the gluing device. Background technique [0002] Existing lithium battery cells are generally rolled by a winding process. Usually, the positive electrode sheet, negative electrode sheet, and separator are stacked in a certain order, and then wound with a certain length through the winding needle of the winding head. And after the winding is completed, the rolled battery cores are bound with adhesive tape to prevent the rolled battery cores from loosening again. [0003] However, the current way to glue the rolled batteries is to stick a layer of tape along the rolling direction of the batteries (that is, the circumferential direction of the batteries) to fix the ends of the positive electrode, negative electrode, and diaphragm. , to prevent the rolled ba...

AI Technical Summary

Problems solved by technology

However, the existing gluing device has the disadvantage of low production efficiency, because the existing gluing device first sticks the first end of the tape on the rolled battery when the battery is glued. The outer peripheral surface, and then the tape is wound on the outer peripheral surface of the cell through the rotation of the winding needle, and then the tape is cut and finished after winding to an appropriate length, so that the cutting of the tape needs to be done after the gluing action is completed. Can be carried out, affecting the overall time of gluing

In addition, when the existing tape is wound, the second end of the tape is connected to the tape material roll, so that the tape in the winding is in a tight state, causing the tape to exert an additional force on the battery cell during gluing. The pressure makes the inside of the cell easy to be compacted too tightly, which affects the quality of the cell

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