CN215965500U

CN215965500U - Rolling device for preventing edge brightness of lithium battery pole piece

Info

Publication number: CN215965500U
Application number: CN202122685164.0U
Authority: CN
Inventors: 王俊勇; 张继超; 李佐伟; 白亚龙
Original assignee: Boronelli Xingtai Battery Equipment Co ltd
Current assignee: Boronelli Xingtai Battery Equipment Co ltd
Priority date: 2021-11-04
Filing date: 2021-11-04
Publication date: 2022-03-08
Anticipated expiration: 2031-11-04

Abstract

The utility model discloses a rolling device for preventing a lithium battery pole piece from being bright at the edge, which comprises a rack, a roller assembly rotationally connected to the rack, a rolling part sleeved on the roller assembly, and a regulating and controlling assembly fixedly arranged on the rack and used for regulating the distance from the roller assembly to the coating edge of the pole piece. According to the utility model, the position of the rolling part can be adjusted through the adjusting part, so that at least one side of the rolling part is flush with the edge of the pole piece, the problems of wavy edges and bright edges on two sides of the pole piece can be avoided by rolling the pole piece, and the quality of the pole piece is effectively improved. The utility model is suitable for battery processing factories such as batteries, electric vehicles and the like, and is used for rolling pole pieces.

Description

Rolling device for preventing edge brightness of lithium battery pole piece

Technical Field

The utility model belongs to the technical field of roller presses, and particularly relates to a rolling device for preventing the edge brightness of a lithium battery pole piece.

Background

In the production process link of the lithium battery, a rolling procedure is indispensable. In the prior art, two circular rollers are commonly adopted to roll the pole piece, in order to ensure that the pole piece is comprehensively rolled, the length of the circular roller is larger than the width of the pole piece under a general condition, and the edges of the pole piece are positioned in the circular roller, and the physical properties of the rollers influence the problems that the two sides of the pole piece are wavy, the edges are shiny and the like after the pole piece is rolled, so that the pole piece compaction parameters are influenced, and the quality of a battery is reduced.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the utility model aims to provide a rolling device for preventing the brightness of the edges of a lithium battery pole piece, so as to achieve the purposes of preventing the wavy edges and the bright edges on the two sides of the pole piece and improving the quality of the pole piece.

In order to achieve the purpose, the technical scheme adopted by the utility model is as follows: the rolling device comprises a rack, a roller assembly rotationally connected to the rack, a rolling part sleeved on the roller assembly, and a regulating and controlling assembly fixedly arranged on the rack and used for regulating the distance from the roller assembly to a coating edge of a lithium battery pole piece.

As a definition of the utility model, the roll assembly comprises a first roll rotatably connected to the frame by a first chock, and a second roll rotatably connected to the frame by a second chock and located below the first roll.

As a further limitation of the present invention, the rolling part includes a roll collar sleeved on the first roll and the second roll and corresponding to the number of the coated pole pieces, and the width of the roll collar is greater than the width of the coated pole pieces.

As another limitation of the utility model, the adjusting and controlling assembly comprises an adjusting piece which is detachably connected to the frame and is fixedly connected with the first bearing seat, and a driving piece which is fixedly arranged on the frame and is used for driving the second roller to move up and down;

the adjusting piece comprises a supporting plate, one side of the supporting plate is fixedly connected with the first bearing seat, and the other side of the supporting plate is in threaded connection with the rack through a bolt; and a long hole for a bolt to pass through is formed in the rack along the axial direction of the first roller.

As the limitation of the utility model, the driving part comprises a hydraulic cylinder fixedly arranged below the second roller and a hydraulic pump communicated with the hydraulic pressure, and the top end of the hydraulic cylinder is fixedly connected with the second bearing seat.

Due to the adoption of the technical scheme, compared with the prior art, the utility model has the following beneficial effects:

(1) the regulating and controlling assembly can regulate the distance from the rolling part to the coating edge of the pole piece, at least ensures that one side of the rolling part is flush with the coating edge of the pole piece, and can effectively avoid the problems of wavy edges, bright edges and the like on two sides of the pole piece when the pole piece is subjected to roll processing, thereby improving the quality of the pole piece; meanwhile, pole pieces with different widths can be coated and rolled, the compatible range of the pole pieces is improved, the problem that the roller needs to be manufactured again when the size of the pole piece changes in a small range is solved, and the practicability of the device is improved.

(3) The driving piece arranged in the utility model can adjust the rolling force applied to the pole piece coating in real time, and ensure that the rolling force to the pole piece is in a standard range, thereby ensuring the quality of the pole piece.

Drawings

The utility model is described in further detail below with reference to the figures and the embodiments.

FIG. 1 is a front view of the structure of an embodiment of the present invention;

FIG. 2 is a right side view of a structure of an embodiment of the present invention;

fig. 3 is a sectional view taken along the line a-a in fig. 2.

In the figure: 1. a frame; 2. a first roll; 3. a second roll; 4. a support plate; 5. a bolt; 6. a strip hole; 7. a roll collar; 8. and a hydraulic cylinder.

Detailed Description

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the description of the preferred embodiment is only for purposes of illustration and understanding, and is not intended to limit the utility model.

Embodiment is used for preventing bright roll-in device in lithium-ion battery pole piece limit

As shown in fig. 1 to 3, the present embodiment includes a frame 1 fixed on a workbench through a frame base, a roll assembly rotatably connected to the frame 1, and a control assembly fixed on the frame 1 for controlling the roll assembly to move up and down.

First, frame 1

The frame 1 adopts a gantry frame in the existing mechanism, and the frame 1 comprises two vertical support rods and a reinforcing rod fixedly connected between the two vertical support rods. Wherein, the middle part of two vertical vaulting poles is seted up and is used for the through-hole of fixed roll subassembly, and the stiffener level sets up and is located the top of two vertical vaulting poles.

Roll assembly

The roll assembly is used for rolling pole piece coating, and as shown in fig. 1 in particular, the roll assembly comprises a first roll 2 and a second roll 3 which are horizontally arranged. Wherein, first roll 2 rotates through first bearing frame and connects between two vertical vaulting poles, and second roll 3 rotates through the second bearing frame and connects between two vertical vaulting poles, and first roll 2 and second roll 3 set up along the vertical direction interval of longmen frame, and first roll 2 is located the top of second roll 3.

Third, rolling part

The rolling part is sleeved on the roll assembly, and particularly as shown in fig. 1, the rolling part comprises a roll collar 7 sleeved on the first roll 2 and the second roll 3. The number of the roller rings 7 is the same as the number of pole piece coatings, and the width of the roller rings 7 is larger than that of the pole piece coatings. Before rolling the pole piece coating, the roll rings 7 are firstly disassembled or assembled, and the number of the roll rings 7 is the same as that of the pole piece coating, so that the roll pressing of the pole piece coating can be completed.

Fourthly, regulating and controlling assembly

The regulation and control subassembly includes regulating part and driving piece. Wherein, the regulating part is the backup pad 4 that the cross-section is the L type, and the horizontal part and the first bearing frame fixed connection of backup pad 4 can dismantle through bolt 5 between the vertical portion of backup pad 4 and the vertical vaulting pole and be connected, offer the rectangular hole 6 that the bolt 5 of being convenient for passed on two vertical vaulting poles simultaneously, and rectangular hole 6 is seted up along the axis direction of first roll 2. When preparing control collar 7 one side and treating the edge alignment of rolled pole piece coating, only need rotate bolt 5, reduce the butt power between bolt 5 and the vertical vaulting pole, then remove first roll 2 along the horizontal direction, and then realize the regulation to first roll 2.

The drive member is a hydraulic system of a known construction, and as shown in particular in fig. 2, comprises a hydraulic cylinder 8, as well as a hydraulic pump. The hydraulic cylinder 8 is fixedly arranged below the second roller 3, the top end of a piston rod of the hydraulic cylinder 8 is fixedly connected with the second bearing seat, the hydraulic pump is communicated with the hydraulic cylinder 8 to provide power for lifting of the piston rod, and the hydraulic cylinder 8 drives the piston rod to move up and down to adjust the pressure between the first roller 2 and the second roller 3.

Fifth, the working process

Before rolling the pole piece coating roll by using the embodiment, firstly, the roll component is sleeved with roll collars 7 corresponding to the pole piece coating width and the number, and then, the first roll 2 is regulated by the regulating part to move left and right, so that one side of the roll collars 7 is kept flush with the edge of the pole piece coating; and then the driving piece drives the second roller 3 to move, appropriate pressure is provided for pole piece coating, and finally, the roller assembly rotates to roll the pole piece coating to finish the rolling treatment of the pole piece.

Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described above, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a roll-in device for preventing lithium battery pole piece limit is bright, includes the frame to and rotate the roll assembly who connects in the frame, its characterized in that: the device also comprises a rolling part sleeved on the roll component and a regulating and controlling component which is fixedly arranged on the frame and is used for regulating the distance from the roll component to the coating edge of the pole piece.

2. The rolling device for preventing the edge brightness of the lithium battery pole piece according to claim 1, characterized in that: the roll assembly comprises a first roll rotatably connected with the frame through a first bearing block, and a second roll rotatably connected with the frame through a second bearing block and positioned below the first roll.

3. The rolling device for preventing the edge brightness of the lithium battery pole piece according to claim 2, characterized in that: the rolling part comprises roll collars which are sleeved on the first roll and the second roll and correspond to the coating quantity of the pole pieces, and the width size of the roll collars is larger than that of the pole pieces.

4. The rolling device for preventing the edge brightness of the lithium battery pole piece according to claim 2 or 3, characterized in that: the regulating and controlling assembly comprises a regulating piece which is detachably connected to the rack and is fixedly connected with the first bearing seat, and a driving piece which is fixedly arranged on the rack and is used for driving the second roller to move up and down;

5. The rolling device for preventing the edge brightness of the lithium battery pole piece according to claim 4, wherein: the driving part comprises a hydraulic cylinder fixedly arranged below the second roller and a hydraulic pump communicated with the hydraulic cylinder, and the top end of the hydraulic cylinder is fixedly connected with the second bearing seat.