Auxiliary unloading device for circular wound needle, cable core winding equipment and cable core forming method

Abstract

The invention provides an auxiliary unloading device for a circular wound needle. The auxiliary unloading device comprises a lower locating structure, a needle pulling stop block, an opening mechanism, an upper prepressing plate pressing against the upper position on the outer side of a circular cable core and a prepressing driving mechanism for enabling the upper prepressing plate and the lower locating structure to do relative opening and closing motions, wherein when the circular cable core on a circular wound needle mechanism is placed on the lower locating structure and locked by the needle pulling stop block, and the opening mechanism is arranged on the inner side of the circular cable core in an extending manner and located on the inner side or the upper prepressing plate presses against the upper position on the outer side of the circular cable core, the circular wound needle mechanism backwards moves along the axial direction of the circular cable core and is separated from the circular cable core; the separated circular cable is prepressed into an elliptical cable core under the cooperation of the opening mechanism, the lower locating mechanism, the upper prepressing plate and the prepressing driving mechanism, so that the problem of unloading of a circular wound needle after winding and the problems of wrinkling and edge collapse of a membrane on the inner ring of an elliptical rolled needle are solved, and a compact structure is realized. Meanwhile, the invention further discloses cable core winding equipment and a cable core forming method.

Description

technical field [0001] The invention relates to the field of cell winding for batteries, in particular to an auxiliary unloading device for a coil-shaped needle used in the lithium battery industry, cell winding equipment and a cell forming method. Background technique [0002] With the continuous development of the economy and the continuous progress of the society, various material consumer goods are provided for people's production and life, and electronic products are one of the various material consumer goods. [0003] Among them, for electronic products, such as mobile phones, computers, tablets, digital cameras and smart watches, etc., the use of lithium batteries is inseparable. Therefore, it creates a good development platform for the development of the lithium battery industry. [0004] At present, winding machines in the lithium battery industry usually use elliptical winding needles when winding batteries, because elliptical winding needles are convenient for pre...

AI Technical Summary

Problems solved by technology

[0007] One object of the present invention is to provide an auxiliary unloading device for round needles that solves the problem of unloading after winding circular needles, solves the problem of wrinkling and edge collapse of the inner ring of elliptical needles, and has a compact structure.

[0008] Another object of the present invention is to provide a battery winding device with a compact structure that solves the problem of unloading after winding a circular needle, solves the problem of wrinkling and collapse of the diaphragm of the inner ring of an elliptical needle

[0009] Another object of the present invention is to provide a cell forming method with a compact structure that solves the problem of unloading after the circular coiling needle is wound, solves the problem of wrinkling and collapse of the diaphragm of the inner ring of the elliptical coiling needle

Images