Lithium battery pole piece cleaning device

Abstract

The utility model discloses a lithium battery pole piece cleaning device which comprises a negative pressure brush, the negative pressure brush is arranged on one side of a passing roller, the passing roller drives a pole piece to rotate, the negative pressure brush cleans the pole piece on the side of the passing roller, the negative pressure brush comprises a central hollow cylinder, a plurality of continuous brush clusters are arranged on the cylinder, a plurality of negative pressure holes are further formed in the cylinder, and the negative pressure holes are communicated with the negative pressure brush clusters. One end of the cylinder is connected with a rotating shaft through a locking mechanism, the rotating shaft is connected with the base through a bearing, the rotating shaft is fixedly connected with the movable end of a motor, and an air pipe is arranged at the end, away from the motor, of the cylinder, communicates with the cavity in the cylinder and is connected with a fixing base through a bearing; the air pipe is connected with a vacuumizing pipe through a pneumatic rotating connector. According to the utility model, two modes of brush rotating dust removal and negative pressure dust collection are combined, so that dust brushed by the brush can be immediately sucked away by negative pressure, and the cleaning efficiency of the dust on the surface of the pole piece is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery pole piece processing, in particular to a lithium battery pole piece cleaning device. Background Art

[0002] The requirements for dust control in the lithium battery manufacturing industry are extremely strict. In the current production line, brushes are often used to clean the surface of the pole piece for dust removal. The dust on the brush has the possibility of secondary contamination of the pole piece, increasing the risk of battery short circuit caused by dust. Therefore, in order to improve the cleaning efficiency of the battery pole piece and reduce the battery short circuit and safety risks, a negative pressure brush for cleaning lithium battery pole pieces with a simple structure, easy installation and high cleaning efficiency is provided, which is a problem that should be addressed in the production process of battery pole pieces. Utility Model Content

[0003] 1. Technical problems to be solved:

[0004] In view of the above technical problems, the utility model provides a lithium battery pole piece cleaning device.

[0005] 2. Technical solution:

[0006] A lithium battery pole piece cleaning device comprises a negative pressure brush, wherein the negative pressure brush is arranged on one side of a roller, the roller drives the pole piece to rotate, and the negative pressure brush cleans the pole piece on the roller side, the negative pressure brush comprises a hollow cylinder in the center, a plurality of continuous brush clusters are arranged on the cylinder, a plurality of negative pressure holes are also arranged on the cylinder, the negative pressure holes are connected to the cavity inside the cylinder, one end of the cylinder is connected to the rotating shaft through a locking mechanism, the rotating shaft is connected to the base through a bearing, the rotating shaft is fixedly connected to the movable end of the motor, an air pipe is arranged at the end of the cylinder away from the motor, the air pipe is connected to the cavity inside the cylinder, the air pipe is connected to the fixed seat through a bearing, and the air pipe is connected to the vacuum pipe through a pneumatic rotary joint.

[0007] Furthermore, the pneumatic rotary joint is fixed on the support seat, and the pneumatic rotary joint, the air pipe, the cylinder and the rotating shaft are concentrically arranged.

[0008] Furthermore, the brush clusters and the negative pressure holes are arranged alternately, the spacing between adjacent brush clusters is the same, and the spacing from the negative pressure holes to the surrounding brush clusters is equal.

[0009] Furthermore, the motor, base, fixed seat and support seat are all fixed on the sliding plate, the sliding plate is slidably connected to the guide rail, the guide rail is fixed on the support plate, the support plate is fixed with a cylinder, and the movable end of the cylinder is fixedly connected to the sliding plate.

[0010] Furthermore, a dust collection box is provided at the bottom of the negative pressure brush.

[0011] Furthermore, the bristles of the brush cluster are made of insulating nylon.

[0012] Furthermore, no brush clusters and negative pressure holes are provided at the positions of the cylinder corresponding to the pole ears on the pole pieces.

[0013] Preferably, the cylinder and the air pipe are connected via threads.

[0014] 3. Beneficial effects:

[0015] 1. The utility model combines the two methods of brush rotation dust removal and negative pressure dust suction to ensure that the dust brushed off by the brush can be immediately sucked away by the negative pressure, thereby improving the dust cleaning efficiency on the electrode surface;

[0016] 2. The utility model realizes the cleaning of the brush bristles themselves, reduces the accumulation of dust on the bristles, and reduces the possibility of secondary pollution of the electrode by the brush;

[0017] 3. The utility model has a simple and convenient structure, which reduces the manpower consumed by manually disassembling and cleaning the device at high frequency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the lithium battery pole piece cleaning device of the utility model;

[0019] Figure 2 It is a schematic diagram of the position of the dust collection box of the utility model. DETAILED DESCRIPTION

[0020] The utility model is described in detail below in conjunction with the accompanying drawings.

[0021] As attached Figure 1 To Attachment Figure 2 As shown,

[0022] Specific embodiment: A lithium battery pole piece cleaning device comprises a negative pressure brush 1, wherein the negative pressure brush 1 is arranged on one side of a roller 2, the roller 2 drives the pole piece 3 to rotate, and the negative pressure brush 1 cleans the pole piece 3 on the side of the roller 2, the negative pressure brush 1 comprises a central hollow cylinder 1-1, a plurality of continuous brush clusters 1-2 are arranged on the cylinder 1-1, a plurality of negative pressure holes 1-3 are also arranged on the cylinder 1-1, the negative pressure holes 1-3 are connected to the cavity inside the cylinder 1-1, one end of the cylinder 1-1 is connected to the rotating shaft 4 through a locking mechanism, the rotating shaft 4 is connected to the base 5 through a bearing, the rotating shaft 4 is fixedly connected to the movable end of the motor 6, the end of the cylinder 1-1 away from the motor 6 is provided with a threaded air pipe 7, the air pipe 7 is connected to the cavity inside the cylinder 1-1, the air pipe 7 is connected to the fixed seat 8 through a bearing, and the air pipe 7 is connected to the vacuum pipe 10 through a pneumatic rotary joint 9. The pneumatic rotary joint 9 is fixed on the support seat 11, and the pneumatic rotary joint 9, the air pipe 7, the cylinder 1-1 and the rotating shaft 4 are concentrically arranged.

[0023] It should be noted that the brush clusters 1-2 and the negative pressure holes 1-3 are arranged alternately, the spacing between adjacent brush clusters 1-2 is the same, and the spacing between the negative pressure holes 1-3 and the surrounding brush clusters 1-2 is equal. The position of the pole ear on the cylinder 1-1 corresponding to the pole piece 3 is not provided with brush clusters 1-2 and negative pressure holes 1-3 to prevent the pole ear from being folded by the brush clusters 1-2 or the negative pressure holes 1-3.

[0024] The motor 6, the base 5, the fixed seat 8 and the support seat 11 are all fixed on the sliding plate 12, the sliding plate 12 is slidably connected to the guide rail 13, the guide rail 13 is fixed to the support plate 14, and the cylinder 15 is fixed to the support plate 14, and the movable end of the cylinder 15 is fixedly connected to the sliding plate 12. The sliding plate 12 is pushed toward the roller 2 by the cylinder 15, so as to ensure that the brush clusters 1-2 of the negative pressure brush 1 and the pole piece 3 are in good contact, and the position of the negative pressure brush 1 is adjusted by the cylinder 15.

[0025] A dust collecting box 16 is provided at the bottom of the negative pressure brush 1. The dust collecting box 16 can collect dust that is not completely sucked away by the negative pressure.

[0026] The bristles of the brush cluster 1-2 are made of insulating nylon material to prevent static electricity.

[0027] The working principle of the lithium battery pole piece cleaning device of the utility model is as follows: when working, the two ends of the negative pressure brush 1 are respectively connected and fixed to the rotating shaft 4 and the air pipe 7, and vacuum is drawn through the vacuum tube 10. Due to the use of the pneumatic rotary joint 9, negative pressure is generated at the negative pressure hole 1-3 while ensuring the rotation of the negative pressure brush 1. The negative pressure brush 1 is pushed close to the pole piece 3 on the roller 2 by the cylinder 15, and the motor 6 drives the negative pressure brush 1 to rotate to clean the surface of the pole piece 3. The dust is sucked away through the negative pressure hole 1-3, and the dust not sucked away by the negative pressure hole 1-3 is collected by the dust box 16. The cleaning method of cleaning by brushing while sucking away dust by negative pressure ensures efficient cleaning.

[0028] Although the present invention has been disclosed as above in terms of preferred embodiments, they are not intended to limit the present invention. Anyone skilled in the art can make various changes or modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope of protection defined by the claims of this application.

Claims

1. A lithium battery pole piece cleaning device, characterized in that: It includes a negative pressure brush, which is arranged on one side of the roller. The roller drives the pole piece to rotate, and the negative pressure brush cleans the pole piece on the roller side. The negative pressure brush includes a hollow cylinder in the center, and a plurality of continuous brush clusters are arranged on the cylinder. The cylinder is also provided with a plurality of negative pressure holes, and the negative pressure holes are connected to the cavity inside the cylinder. One end of the cylinder is connected to the rotating shaft through a locking mechanism, and the rotating shaft is connected to the base through a bearing. The rotating shaft is fixedly connected to the movable end of the motor, and an air pipe is arranged at the end of the cylinder away from the motor. The air pipe is connected to the cavity inside the cylinder, and the air pipe is connected to the fixed seat through a bearing. The air pipe is connected to the vacuum pipe through a pneumatic rotary joint.

2. A lithium battery pole piece cleaning device according to claim 1, characterized in that: The pneumatic rotary joint is fixed on the supporting seat, and the pneumatic rotary joint, the air pipe, the cylinder and the rotating shaft are arranged concentrically.

3. A lithium battery pole piece cleaning device according to claim 2, characterized in that: The brush clusters and the negative pressure holes are arranged alternately, the spacing between adjacent brush clusters is the same, and the spacing from the negative pressure holes to the surrounding brush clusters is equal.

4. A lithium battery pole piece cleaning device according to any one of claims 1 to 3, characterized in that: The motor, base, fixed seat and support seat are all fixed on the sliding plate, the sliding plate is slidably connected to the guide rail, the guide rail is fixed on the support plate, the support plate is fixed with a cylinder, and the movable end of the cylinder is fixedly connected to the sliding plate.

5. A lithium battery pole piece cleaning device according to claim 4, characterized in that: A dust collecting box is provided at the bottom of the negative pressure brush.

6. A lithium battery pole piece cleaning device according to claim 5, characterized in that: The bristles of the brush cluster are made of insulating nylon.

7. A lithium battery pole piece cleaning device according to claim 6, characterized in that: The position of the cylinder corresponding to the pole ear on the pole piece is not provided with a brush cluster and a negative pressure hole.

8. A lithium battery pole piece cleaning device according to claim 7, characterized in that: The cylinder and the air pipe are connected by threads.

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