CN216980615U

CN216980615U - Pole piece cross cutting belt cleaning device

Info

Publication number: CN216980615U
Application number: CN202121725164.2U
Authority: CN
Inventors: 李彦辉; 张亚儒; 朱家浩
Original assignee: Shanghai Lanjun New Energy Technology Co Ltd
Current assignee: Shanghai Lanjun New Energy Technology Co Ltd
Priority date: 2021-07-28
Filing date: 2021-07-28
Publication date: 2022-07-15
Anticipated expiration: 2031-07-28

Abstract

The utility model relates to a die cutting and cleaning device for a pole piece, which comprises an unreeling mechanism (1), a rolling mechanism (2) and a die cutting mechanism (3) which are sequentially arranged along the moving direction of the pole piece; the pole piece die cutting and cleaning device further comprises a cleaning mechanism (4) used for cleaning a pole piece thin area, the cleaning mechanism (4) is arranged in front of the rolling mechanism (2), and the cleaning mechanism (4) comprises a laser module (41) and a detection feedback system (42). Compared with the prior art, the utility model can clean and eliminate the thinner area of the tab part, and effectively improve the consistency of the thickness of the coating area of the pole piece, thereby improving the monomer capacity of the assembled battery.

Description

Pole piece cross cutting belt cleaning device

Technical Field

The utility model relates to the technical field of battery manufacturing, in particular to a die cutting and cleaning device for a pole piece.

Background

The pole piece die cutting is used as a key process in battery manufacturing, and the die cutting of the pole piece is realized mainly by linkage of a pole roll unwinding mechanism, a pole roll deviation correcting mechanism, a pole piece die cutting mechanism, a pole piece cutting mechanism, a CCD pole piece size detection mechanism, a blanking mechanism and the like. Due to the influence of winding and unwinding in the coating process, the phenomenon that the coating thickness is too thin can occur near the pole lug part, so that the corresponding pole lug part coating area can be correspondingly thinned after die cutting is finished, the whole coating area of the pole piece is not uniform after the whole die cutting is finished, the consistency of the pole piece is poor, the single piece capacity of the pole piece is reduced, and the capacity of the assembled battery is further influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a die-cutting cleaning device for pole pieces, which improves the die-cutting consistency of the pole pieces.

The purpose of the utility model can be realized by the following technical scheme: a pole piece die cutting and cleaning device comprises an unreeling mechanism, a rolling mechanism and a die cutting mechanism which are sequentially arranged along the moving direction of a pole piece;

the cleaning mechanism is arranged in front of the rolling mechanism and comprises a laser module and a detection feedback system. The device cleans and eliminates the pole piece ear part thin area through the laser module, can effectively improve the consistency of the thickness of the pole piece coating area, thereby improving the monomer capacity of the assembled battery, and simultaneously, detects and feeds back the cleaning size through the detection and feedback system, and improves the consistency of the pole piece die cutting size.

Preferably, the laser module include set up respectively in the last laser module and the lower laser module of the upper and lower both sides of pole piece. The laser module cleans and eliminates the ear part thin area through the upper and lower laser modules.

Preferably, the detection feedback system comprises a CCD lens and a light compensation plate.

Further preferably, the CCD lens is disposed above the pole piece, the light supplement plate is disposed below the pole piece, and the light supplement plate is disposed opposite to the CCD lens. And the CCD lens and the light supplementing plate are combined to detect the size of the cleaned pole roll. The detection feedback system can improve the detection efficiency of the pole piece CCD and reduce the misjudgment rate of poor size.

Preferably, a supporting mechanism for supporting the pole piece is arranged between the unwinding mechanism and the rolling mechanism.

Further preferably, the supporting mechanism comprises a plurality of pole piece rollers. A plurality of pole pieces are arranged in parallel through the rollers and are mainly used for supporting the pole pieces.

Preferably, the unwinding mechanism comprises an unwinding shaft and an unwinding motor for driving the unwinding shaft to move. The unreeling shaft is used for fixing the pole coil, and the unreeling speed of the pole coil can be controlled by the unreeling motor.

Further preferably, the unwinding mechanism further comprises an X-axis servo moving system, and a fixing plate is further arranged between the X-axis servo moving system and the unwinding motor. The X-axis servo moving system can adjust the position of the pole roll in the X-axis direction and is fixedly connected with the unwinding motor through a fixing plate.

Preferably, the rolling mechanism comprises an upper rolling roller and a lower rolling roller which are respectively arranged on the upper side and the lower side of the pole piece. The rolling mechanism rolls the pole piece cleaning position and the whole pole piece, effectively reduces burrs of the cleaning position, ensures that the thickness of the pole piece is uniform, and improves the yield of pole piece die cutting.

Preferably, the die cutting mechanism comprises a die cutting plate and a bottom die plate which are respectively arranged on the upper side and the lower side of the pole piece. The cutting template is linked with the bottom template and used for die cutting pole pieces with required sizes.

Compared with the prior art, the utility model has the following advantages:

1. the cleaning mechanism can clean and eliminate a thin area of a tab part of a coated incoming material, and effectively improve the thickness consistency of a coating area of a pole piece, so that the monomer capacity of the assembled battery is improved;

2. the detection feedback system performs detection feedback on the cleaning size, and improves the consistency of the die cutting size of the pole piece;

3. according to the compression roller structure, the pole piece cleaning position and the whole pole piece are rolled, so that burrs at the cleaning position are effectively reduced, the uniform thickness of the pole piece is ensured, and the yield of die cutting of the pole piece is improved;

4. the pole piece is uniform in thickness, abrasion of the die is effectively reduced in the die cutting process, the service life of the die is prolonged, and the use cost of the die is reduced;

5. according to the die-cut single pole piece, the size consistency of the die-cut single pole piece is high, the misjudgment rate of poor size is reduced, and therefore the production efficiency of equipment is improved.

Drawings

FIG. 1 is a schematic structural view of a die-cutting cleaning device for pole pieces according to the present invention;

FIG. 2 is a schematic view of the cleaning mechanism of the present invention;

FIG. 3 is a schematic view of the supporting mechanism of the present invention;

FIG. 4 is a schematic structural view of the rolling mechanism of the present invention;

in the figure: 1-unwinding mechanism, 11-unwinding shaft, 12-unwinding motor, 13-X-axis servo moving system, 14-fixing plate, 2-rolling mechanism, 21-upper pressing roller, 22-lower pressing roller, 3-die cutting mechanism, 31-cutting template, 32-bottom template, 4-cleaning mechanism, 41-laser module, 411-upper laser module, 412-lower laser module, 42-detection feedback system, 421-CCD lens, 422-light supplementing plate, 5-supporting mechanism, 51-pole piece passing roller, 6-pole piece and 61-pole piece thin area.

Detailed Description

The utility model is described in detail below with reference to the figures and specific embodiments. The following examples are carried out on the premise of the technical scheme of the utility model, and detailed embodiments and specific operation processes are given, but the scope of the utility model is not limited to the following examples.

Example 1

The utility model provides a pole piece cross cutting belt cleaning device, including unwinding mechanism 1, roll extrusion mechanism 2, die cutting mechanism 3, wiper mechanism 4 and supporting mechanism 5, as shown in fig. 1, unwinding mechanism 1 is including unreeling axle 11, unwinding motor 12, X axle servo mobile system 13 and fixed plate 14, unreeling axle 11 is used for fixing the pole book, unwinding motor 12 controls the speed of unreeling of pole book, unwinding motor 12 connects fixed plate 14, fixed plate 14 connects X axle servo mobile system 13, the adjustable position of pole book in X axle direction of X axle servo mobile system 13. The structure of the cleaning mechanism 4 is shown in fig. 2, and includes a laser module 41 and a detection feedback system 42, wherein the laser module 41 includes an upper laser module 411 and a lower laser module 412 respectively disposed at the upper and lower sides of the pole piece 6, and the upper and lower thin areas of the pole piece 6 are cleaned and eliminated respectively; detect feedback system 42 and set up in laser module 41 rear, including CCD camera lens 421 and light filling board 422 for detect the feedback to washing the size, improve the uniformity of pole piece cross cutting size.

The structure of the supporting mechanism 5 is shown in fig. 3, and includes a plurality of pole piece passing rollers 51 arranged in parallel for supporting the pole piece 6, and the structure of the rolling mechanism 2 is shown in fig. 4, and includes an upper pressing roller 21 and a lower pressing roller 22 respectively arranged on the upper and lower sides of the pole piece 6, and is used for rolling the cleaned position. The die cutting mechanism 3 is shown in fig. 1, and comprises a cutting template 31 and a bottom template 32 respectively arranged on the upper side and the lower side of the pole piece 6, and is used for die cutting pole pieces with required sizes.

When the device works, the pole piece 6 starts from the unreeling mechanism 1 and moves to the die cutting mechanism 3, the surface is kept flat under the support of the support mechanism 5, after the thin area 61 of the pole piece is cleaned and eliminated by the cleaning mechanism 4, the pole piece is rolled by the rolling mechanism 2, burrs at the cleaning position are reduced, and then the pole piece enters the die cutting mechanism 3 and is die-cut into the pole piece 6 with the required size.

The embodiments described above are intended to facilitate a person of ordinary skill in the art in understanding and using the present invention. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make modifications and alterations without departing from the scope of the present invention.

Claims

1. A pole piece die cutting and cleaning device is characterized by comprising an unreeling mechanism (1), a rolling mechanism (2) and a die cutting mechanism (3) which are sequentially arranged along the moving direction of a pole piece;

the pole piece die cutting cleaning device further comprises a cleaning mechanism (4) used for cleaning a pole piece thin area, the cleaning mechanism (4) is arranged in front of the rolling mechanism (2), and the cleaning mechanism (4) comprises a laser module (41) and a detection feedback system (42).

2. The die-cutting cleaning device for the pole pieces as claimed in claim 1, wherein the laser module (41) comprises an upper laser module (411) and a lower laser module (412) respectively arranged at the upper side and the lower side of the pole piece.

3. The die-cutting cleaning device for the pole pieces as claimed in claim 1, wherein the detection feedback system (42) comprises a CCD lens (421) and a light supplement plate (422).

4. The device for cleaning the die cutting of the pole piece as claimed in claim 3, wherein the CCD lens (421) is arranged above the pole piece, the light compensation plate (422) is arranged below the pole piece, and the light compensation plate (422) is arranged opposite to the CCD lens (421).

5. The pole piece die cutting cleaning device according to claim 1, wherein a support mechanism (5) for supporting the pole piece is arranged between the unwinding mechanism (1) and the rolling mechanism (2).

6. The die-cutting cleaning device for pole pieces as claimed in claim 5, wherein said supporting mechanism (5) comprises a plurality of pole piece passing rollers (51).

7. The pole piece die cutting cleaning device according to claim 1, wherein the unwinding mechanism (1) comprises an unwinding shaft (11) and an unwinding motor (12) for driving the unwinding shaft (11) to move.

8. The pole piece die cutting cleaning device according to claim 7, wherein the unwinding mechanism (1) further comprises an X-axis servo moving system (13), and a fixing plate (14) is further disposed between the X-axis servo moving system (13) and the unwinding motor (12).

9. The die-cutting cleaning device for the pole pieces as claimed in claim 1, wherein the rolling mechanism (2) comprises an upper pressing roller (21) and a lower pressing roller (22) which are respectively arranged on the upper side and the lower side of the pole piece.

10. The die-cutting cleaning device for the pole pieces as claimed in claim 1, wherein the die-cutting mechanism (3) comprises a die-cutting plate (31) and a bottom die plate (32) respectively arranged at the upper side and the lower side of the pole piece.