CN212432027U

CN212432027U - Cutting die cutting plate structure capable of inspecting uniformity of battery cell

Info

Publication number: CN212432027U
Application number: CN202021562757.7U
Authority: CN
Inventors: 朱亮园; 曹汉标
Original assignee: Jiangxi Dbk Corp Co ltd
Current assignee: Jiangxi Dbk Corp Co ltd
Priority date: 2020-07-31
Filing date: 2020-07-31
Publication date: 2021-01-29
Anticipated expiration: 2030-07-31

Abstract

The utility model relates to a cutting die cutting plate structure capable of inspecting the uniformity of an electric core, which comprises a bottom plate and a plurality of cutting die cutting plates arranged on the bottom plate, wherein the cutting die cutting plates are bent to form a shape corresponding to the outer edge of a pole piece, the back surfaces of the cutting die cutting plates are embedded in the bottom plate, the cutting edges of the cutting die cutting plates face outwards, the positions of the inner sides of the cutting die cutting plates corresponding to the lugs on the pole piece are provided with circular blades, during processing, the cutting die cutting plates punch and cut a raw material plate to form pole pieces with lugs, the circular blades punch and cut on the lugs of the pole pieces to form circular holes, which are equivalent to that each pole piece lug has a mark, after the pole pieces are laminated, the circular holes at the lug positions on each pole piece are in one-to-one correspondence, the principle of threading is utilized, aluminum rods with lighter quality are inserted into the circular holes at the lug positions for inspection, the alignment deviation of the electric core is large, the direct visual inspection can save part, the turnover time between the battery core procedures is reduced, and the damage of the battery core caused by turnover can be avoided.

Description

Cutting die cutting plate structure capable of inspecting uniformity of battery cell

Technical Field

The utility model belongs to the technical field of battery production processing pole piece cross cutting and lamination detection alignment degree detection and specifically relates to a but cutting die cutting plate structure of inspection electric core regularity.

Background

The battery is spontaneously combusted after the current power battery is frequently used for a period of time, and the safety and property loss of people are seriously threatened, wherein one of the reasons is that the positive and negative pole pieces of the battery core are coated unevenly, because the positive and negative pole pieces are coated unevenly, the positive Li is not embedded into the negative graphite, and after the battery is repeatedly used for a period of time, more and more Li is accumulated on a diaphragm, and finally, the lithium dendrite pierces the diaphragm to cause the short circuit of the positive and negative poles, so that the safety of the battery is caused.

In order to solve the problems, the patent designs a cutter die cutting plate structure capable of inspecting the uniformity of a battery cell and an inspection method thereof, which can replace part of X-R ray detection equipment and reduce the input cost of the equipment.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a cutting die cutting plate structure capable of inspecting the uniformity of an electric core.

In order to realize the purpose, the utility model discloses a technical scheme as follows:

the utility model provides a can inspect cutting die cutting plate structure of electric core regularity, includes the bottom plate and installs a plurality of cutting die cutting plates on the bottom plate, and cutting die cutting plate bends and forms the shape that corresponds with the pole piece outer fringe, and the back of cutting die cutting plate is inlayed in the bottom plate, and the cutting edge of cutting die cutting plate is outwards, and the position department that the inboard of cutting die cutting plate corresponds with utmost point ear on the pole piece is equipped with circular blade.

Further, the cutting die cutting plates are steel blades, the bottom plate is a wood bottom plate, and the cutting die cutting plates are symmetrically arrayed on the bottom plate.

Furthermore, the cutting edge of the circular blade faces downwards, and the circular blade is fixed on the bottom plate.

Furthermore, the cutting die cutting plate is used for punching and cutting the raw material plate to form a pole piece with a pole lug, and the circular blade is used for punching and cutting the pole lug of the pole piece to form a circular hole.

Further, after the plurality of pole pieces are stacked, aluminum bars are inserted into circular holes at the pole lugs of the pole pieces to adjust the regularity of the stacked pieces.

The utility model has the advantages that: the cutting die cutting plate of the mechanism is bent to form a shape corresponding to the outer edge of the pole piece, the back surface of the cutting die cutting plate is embedded in the bottom plate, the cutting edge of the cutting die cutting plate faces outwards, a circular blade is arranged at the position, corresponding to the pole lug on the pole piece, on the inner side of the cutting die cutting plate, and during processing, the cutting die cutting plate is used for punching and cutting the raw material plate to form pole pieces with pole lugs, the circular blade is used for punching and cutting the pole lugs of the pole pieces to form circular holes, which is equivalent to that each pole piece pole lug is provided with a mark, after pole pieces are laminated, the circular holes at the pole lugs on each pole piece are in one-to-one correspondence, aluminum bars with lighter weight are inserted into the circular holes at the pole lugs for inspection by utilizing the principle of needle threading, the alignment deviation of the battery core is large, the battery core can be directly visually detected, part of the inspection process of X-R ray detection equipment can be omitted, the turnover time between the process of the battery core is reduced, and the damage of the battery core caused by turnover can be avoided.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the pole piece structure processed by the present invention;

fig. 3 is the utility model discloses the insertion of pole piece lamination back aluminium bar detects the sketch map.

Detailed Description

As shown in fig. 1 to 3, a cutting die cutting plate structure capable of inspecting cell regularity includes a bottom plate 1 and a plurality of cutting die cutting plates 2 installed on the bottom plate 1, the cutting die cutting plates 2 are bent to form a shape corresponding to an outer edge of a pole piece, a back surface of the cutting die cutting plate 2 is embedded in the bottom plate 1, a cutting edge of the cutting die cutting plate 2 faces outward, and a circular blade 3 is disposed at a position corresponding to a tab on the pole piece on an inner side of the cutting die cutting plate 2.

Wherein, cutting die cutting board 2 is the steel blade, and bottom plate 1 adopts wooden bottom plate, and a plurality of cutting die cutting board 2 are arranged on bottom plate 1 symmetrical array. The cutting edge of the circular blade 3 faces downwards, and the circular blade 3 is fixed on the bottom plate 1.

Further, the cutting die cutting plate 2 is used for punching and cutting the raw material plate to form a pole piece 5 with a pole lug 4, and the circular blade 3 is used for punching and cutting the pole lug 4 of the pole piece 5 to form a circular hole 6.

Further, after a plurality of pole pieces 5 are stacked, aluminum bars 7 are inserted into circular holes 6 at the lugs 4 of the pole pieces 5, and the regularity of the stacked pieces is adjusted.

A cutting die cutting plate 2 of the mechanism is bent to form a shape corresponding to the outer edge of a pole piece, the back surface of the cutting die cutting plate 2 is embedded in a bottom plate 1, the cutting edge of the cutting die cutting plate 2 faces outwards, a circular blade 3 is arranged at the position, corresponding to a pole lug 4 on a pole piece 5, of the inner side of the cutting die cutting plate 2, when in processing, the cutting die cutting plate 2 punches and cuts a raw material plate to form the pole piece 5 with the pole lug 4, the circular blade 3 punches and cuts the pole lug 4 of the pole piece 5 to form a circular hole 6, corresponding to each pole lug 4, the circular hole 6 at the pole lug 4 on each pole piece 5 corresponds one by one, after the pole pieces 5 are laminated, an aluminum rod 7 with light weight is inserted into the circular hole 6 at the pole lug for inspection by utilizing the principle of a needle threading lead, the alignment deviation of an electric core is large, the visual inspection can be directly realized, part of inspection procedures of X-R ray detection equipment can be omitted, and the damage to the battery cell caused by turnover can be avoided.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a can inspect cutting die cutting plate structure of electric core regularity, includes the bottom plate and installs a plurality of cutting die cutting plates on the bottom plate, its characterized in that, cutting die cutting plate bend and form the shape that corresponds with the pole piece outer fringe, and the back of cutting die cutting plate is inlayed in the bottom plate, and the cutting edge of cutting die cutting plate is outwards, and the inboard of cutting die cutting plate is equipped with circular blade with the position department that utmost point ear corresponds on the pole piece.

2. The structure of claim 1, wherein the cutting board is a steel blade, the bottom board is a wooden bottom board, and the cutting boards are symmetrically arranged on the bottom board in an array.

3. The structure of claim 1, wherein the circular blade is fixed to the bottom plate with its edge facing downward.

4. The structure of claim 1, wherein the die cutting plate is used for punching and cutting a raw material plate to form a pole piece with a tab, and the circular blade is used for punching and cutting a tab of the pole piece to form a circular hole.

5. The cutting plate structure of claim 4, wherein after the plurality of pole pieces are stacked, an aluminum rod is inserted into the circular hole at the pole ear of the pole piece to adjust the regularity of the stacked pole pieces.