Winding device for outer protective film of battery cell

Abstract

The invention relates to the technical field of battery cell outer protective film winding, in particular to a battery cell outer protective film winding device which comprises a shell, two connecting blocks are symmetrically arranged in the shell, the opposite sides of the two connecting blocks are rotationally connected with connecting discs, electric push rods are fixed to the connecting discs, and rotating discs are fixed to the tail ends of piston rods of the electric push rods. A battery cell is jointly clamped between the two rotating discs, and cutting discs are fixedly arranged on the surfaces of the rotating discs in a sleeving manner; a mounting plate is fixed to the middle of the shell, a film pasting opening is formed in the surface of the mounting plate, a film conveying mechanism is arranged below the mounting plate, and extrusion cutting mechanisms are arranged on the two sides of the film pasting opening; according to the scheme, the battery cell is wound on the surface of the protective film in a rolling manner, and the two sides of the protective film are cut off in advance through the cutting knife, so that the battery cell winds and coats the protective film at the rear part, the winding and coating functions are completed, the operation is simple, the manual repeated turnover operation is not needed, and the mechanical production is facilitated.

Description

technical field [0001] The invention relates to the field of wrapping the outer protective film of the battery cell, in particular to a wrapping device for the outer protective film of the battery cell. Background technique [0002] A cell refers to a single electrochemical cell containing positive and negative electrodes, which is generally not used directly. [0003] Some invention patents related to the outer protective film of the battery cell are disclosed in the prior art. The Chinese patent application number is 202021660295.2, which discloses a device for attaching a protective film to the battery cell. It is characterized in that it includes a bottom plate, a No. 1 vertical plate, and a fixing mechanism. , pressing mechanism, pressing roller mechanism, cutting mechanism and positioning mechanism, the No. 1 vertical plate is fixedly installed on the end of one side of the bottom plate, and the fixed shaft of the fixing mechanism is fixedly connected to the side of th...

AI Technical Summary

Problems solved by technology

[0004] In the prior art, when wrapping the battery cell with protective film, it can only be applied on one side, and it is usually used to stick the film on the square battery cell. In the process of film sticking, it is not convenient to adapt to the cylindrical shape. film, and the method of turning over the film is not suitable for distinguishing the surface of the cylindrical battery cell. It is necessary to repeatedly turn over the battery cell. The film sticking efficiency is low, which is not conducive to mechanized production. In view of this, we propose a battery cell Core outer protective film winding device

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