Device for improving edge curling of rolled pole piece

Abstract

The utility model discloses a device for improving the hemming of a rolled pole piece, which relates to the technical field of battery pole piece processing, and comprises a bearing base and a rolling component, the two sides of the upper end of the bearing base are provided with mounting vertical plates, and the middle part of the upper end of the bearing base is provided with the rolling component; the rolling assembly comprises a limiting sliding groove, a pneumatic rod, a movable sliding block, limiting through grooves, a limiting vertical rod, a servo motor, a first roller and a second roller, the pneumatic rod is installed at the upper end of the interior of the limiting sliding groove, the movable sliding block is arranged at the front end of the pneumatic rod, and the limiting through grooves are formed in the four corners of the interior of the movable sliding block; and meanwhile, a limiting vertical rod is connected into the limiting through groove, a servo motor is arranged outside the movable sliding block, a first roller is connected to the front end of the servo motor, and a second roller is distributed below the first roller. According to the device for improving the edge curling of the rolled pole piece, the pressure and the speed of the roller can be stably adjusted, and the overall machining yield of the pole piece is increased.

Description

Technical Field

[0001] This utility model relates to the field of battery electrode processing technology, specifically to an improved device for rolling edge curling of rolled electrode sheets. Background Technology

[0002] Battery electrodes are a crucial component of batteries, primarily responsible for current conduction and catalysis of chemical reactions. Battery electrodes are typically divided into positive and negative electrodes, responsible for electron flow and ion transport, respectively. Roll-forming electrodes refer to the process in lithium battery manufacturing where coated and dried electrodes are compacted using rolling equipment. The main purpose of this process is to increase the electrode density, making its surface smooth and flat, thereby improving the battery's energy density and cycle life. Roll-forming electrodes are widely used in lithium-ion battery production and are one of the key processes for improving battery performance. By precisely controlling the rolling parameters, the battery's energy density, cycle life, and safety performance can be optimized to meet the needs of different application scenarios. To improve the processing efficiency of battery electrodes, an anti-rolling device is needed; however, existing anti-rolling devices still have the following shortcomings:

[0003] When existing anti-rolling devices are used, most of them are not easy to adjust the pressure and speed of the rollers stably. This can easily lead to deformation of the electrode sheets due to excessive pressure or speed, which affects the yield of battery electrode sheets and causes a decrease in the practicality and efficiency of the anti-rolling device.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and proposed an improved roller pressing electrode edge rolling device. Utility Model Content

[0005] The purpose of this invention is to provide an improved roller-pressed electrode edge-rolling device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an improved roller-pressed electrode edge-rolling device, comprising a receiving base and a roller pressing assembly. Mounting vertical plates are provided on both sides of the upper end of the receiving base. The roller pressing assembly is located in the middle of the upper end of the receiving base. The roller pressing assembly includes a limiting groove, a pneumatic rod, a movable slider, a limiting through groove, a limiting vertical rod, a servo motor, a first roller, and a second roller. A pneumatic rod is installed at the upper end inside the limiting groove, and a movable slider is provided at the front end of the pneumatic rod. Limiting through grooves are formed at the four corners inside the movable slider, and limiting vertical rods are connected inside the limiting through grooves. A servo motor is provided outside the movable slider, and a first roller is connected to the front end of the servo motor. A second roller is distributed below the first roller. Limiting assemblies are provided on both sides of the upper end of the receiving base.

[0007] Furthermore, the pneumatic rod and the movable slider are arranged perpendicularly, and the pneumatic rod and the movable slider are fixedly connected by bolts.

[0008] Furthermore, the internal dimensions of the limiting groove are adapted to the external dimensions of the limiting vertical rod, and the limiting vertical rod is connected to the movable slider through the limiting groove.

[0009] Furthermore, the outer sides of the first roller and the outer sides of the second roller are horizontally distributed, and the outer sides of the first roller and the outer sides of the second roller are closely attached to each other.

[0010] Furthermore, the limiting component includes an electric telescopic rod, a mounting frame, a spring damping rod, a receiving frame, and a conveying roller. The electric telescopic rod has a mounting frame installed at its front end, and a spring damping rod is provided at the upper end inside the mounting frame. The spring damping rod has a receiving frame installed at its front end, and a conveying roller is connected inside the receiving frame.

[0011] Furthermore, the limiting component also includes a limiting slider, a limiting through hole, and a limiting crossbar. A limiting slider is installed at the lower middle part of the receiving frame, and a limiting through hole is opened at the middle of the limiting slider. A limiting crossbar is connected inside the limiting through hole.

[0012] Furthermore, the conveying roller is embedded in the mounting frame, and the conveying roller is elastically connected to the mounting frame via a spring damping rod.

[0013] Furthermore, the internal dimensions of the limiting through hole are adapted to the external dimensions of the limiting crossbar, and the limiting crossbar is embeddedly connected to the limiting slider through the limiting through hole.

[0014] This utility model provides an improved device for edge curling of roller-pressed electrode sheets, which has the following beneficial effects:

[0015] 1. This utility model, through the setting of the roller pressing component, can improve the use of the roller pressing electrode edge-rolling device. The pneumatic rod drives the movable slider to move in position, and the limiting through groove and limiting vertical rod increase the stability of the movable slider during movement. The servo motor is fixedly installed on the outside of the movable slider. The servo motor drives the first roller to rotate, and the pneumatic rod drives the first roller to move stably to the second roller. Thus, the first roller and the second roller are used to stably roll the electrode, avoiding edge curling of the electrode and improving the overall practicality and efficiency of the edge-rolling device.

[0016] 2. This utility model, through the setting of the limiting component, can improve the use of the roller-pressed electrode edge-rolling device. The electric telescopic rod drives the installation frame to move in position, and the limiting slider is fixedly installed in the middle of the lower end of the installation frame. The limiting through hole and the limiting crossbar are used to improve the stability of the limiting slider during movement, thereby avoiding positional deviation when the installation frame moves and improving the electrode conveying efficiency. The spring damping rod makes the conveying roller connected inside the receiving frame elastically connected to the installation frame, thereby stabilizing the conveying of the electrode and avoiding problems such as electrode conveying deviation, thus improving the overall practicality and efficiency of the edge-rolling device. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of an improved roller-pressed electrode edge-rolling device according to the present invention;

[0018] Figure 2 This is a three-dimensional sectional view of the developed structure of a roller pressing assembly for improving the edge-rolling device of roller-pressed electrode sheets according to the present invention;

[0019] Figure 3 This is a three-dimensional unfolded structural diagram of the limiting component of the improved roller pressing electrode edge rolling device of this utility model.

[0020] In the diagram: 1. Receiving base; 2. Mounting vertical plate; 3. Roller assembly; 301. Limiting groove; 302. Pneumatic rod; 303. Movable slider; 304. Limiting through groove; 305. Limiting vertical rod; 306. Servo motor; 307. First roller; 308. Second roller; 4. Limiting assembly; 401. Electric telescopic rod; 402. Mounting frame; 403. Spring damping rod; 404. Receiving frame; 405. Conveying roller; 406. Limiting slider; 407. Limiting through hole; 408. Limiting horizontal rod. Detailed Implementation

[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0022] like Figure 1 and Figure 2As shown, an improved edge-rolling device for electrode sheets includes a receiving base 1 and a rolling assembly 3. Mounting vertical plates 2 are provided on both sides of the upper end of the receiving base 1, and the rolling assembly 3 is provided in the middle of the upper end of the receiving base 1. The rolling assembly 3 includes a limiting groove 301, a pneumatic rod 302, a movable slider 303, a limiting through groove 304, a limiting vertical rod 305, a servo motor 306, a first roller 307, and a second roller 308. The pneumatic rod 302 is installed at the upper end inside the limiting groove 301, and the movable slider 303 is provided at the front end of the pneumatic rod 302. The movable slider 303 has four corners inside. A limiting slot 304 is provided, and a limiting vertical rod 305 is connected inside the limiting slot 304. A servo motor 306 is provided outside the movable slider 303, and a first roller 307 is connected to the front end of the servo motor 306. A second roller 308 is distributed below the first roller 307. A pneumatic rod 302 is perpendicular to the movable slider 303 and is fixedly connected to the movable slider 303 by bolts. The internal dimensions of the limiting slot 304 are adapted to the external dimensions of the limiting vertical rod 305, and the limiting vertical rod 305 is connected to the movable slider 303 through the limiting slot 304. The three rollers are connected, with the outer sides of the first roller 307 and the second roller 308 horizontally distributed and closely fitted together. A pneumatic rod 302 is fixedly installed inside the upper end of the limiting slide groove 301 using fastening bolts. A movable slider 303 is also fixedly installed at the front end of the pneumatic rod 302 using the same fastening bolts. The pneumatic rod 302 drives the movable slider 303 to move. The internal dimensions of the limiting through grooves 304 at the four corners of the movable slider 303 are adapted to the external dimensions of the limiting vertical rod 305, thus allowing movement through the limiting through grooves 304. 4. To enhance the stability of the movable slider 303 during movement, the limit rod 305 is used. The servo motor 306 is fixedly installed outside the movable slider 303. The output shaft of the servo motor 306 is connected to the first roller 307 through a coupling. The servo motor 306 drives the first roller 307 to rotate, and in conjunction with the pneumatic rod 302, drives the first roller 307 to move stably towards the second roller 308. This allows for stable rolling of the electrode sheet using the first roller 307 and the second roller 308, preventing edge curling of the electrode sheet and improving the overall practicality and efficiency of the edge curling device.

[0023] like Figure 1 and Figure 3As shown, limit components 4 are provided on both sides of the upper end of the receiving base 1. The limit components 4 include an electric telescopic rod 401, a mounting frame 402, a spring damping rod 403, a receiving frame 404, and a conveying roller 405. The mounting frame 402 is installed at the front end of the electric telescopic rod 401, and the spring damping rod 403 is provided at the upper end of the mounting frame 402. The receiving frame 404 is installed at the front end of the spring damping rod 403, and the conveying roller 405 is connected inside the receiving frame 404. The limit components 4 also include a limit slider 406 and a limit through hole 407. A limiting slider 406 is installed at the lower center of the receiving frame 404, along with a limiting crossbar 408. A limiting through hole 407 is formed in the middle of the limiting slider 406, and the limiting crossbar 408 is connected inside the limiting through hole 407. The conveying roller 405 is embedded in the mounting frame 402, and is elastically connected to the mounting frame 402 via a spring damping rod 403. The internal dimensions of the limiting through hole 407 are adapted to the external dimensions of the limiting crossbar 408, and the limiting crossbar 408 is connected to the limiting slider 406 through the limiting through hole 407. The electric telescopic rod 401 is fixedly installed inside the mounting vertical plate 2 by fastening bolts, and the mounting frame 402 is fixedly installed at the front end of the electric telescopic rod 401 by the fastening bolts. The operation of the electric telescopic rod 401 drives the mounting frame 402 to move, thereby adapting to the different specifications of electrode plates for adjusting the spacing. The limiting slider 406 is fixedly installed in the middle of the lower end of the mounting frame 402. The internal dimensions of the limiting through hole 407 opened inside the limiting slider 406 are adapted to the external dimensions of the limiting crossbar 408. By using the limiting through hole 407 in conjunction with the limiting crossbar 408, the stability of the limiting slider 406 during movement is improved, thereby preventing positional deviation when the mounting frame 402 moves and improving the electrode conveying efficiency. The spring damping rod 403 is fixedly installed inside the upper end of the mounting frame 402. The spring damping rod 403 enables the conveying roller 405 connected inside the receiving frame 404 to be elastically connected to the mounting frame 402, thereby stabilizing the conveying of the electrode and avoiding problems such as electrode conveying deviation, thus improving the overall practicality and efficiency of the crimping device.

[0024] In summary, this improved roller-pressed electrode edge-rolling device, during use, firstly fixes the mounting vertical plate 2 to both sides of the upper end of the receiving base 1 using fastening bolts. The pneumatic rod 302 drives the movable slider 303 to move, and the limiting through groove 304, in conjunction with the limiting vertical rod 305, increases the stability of the movable slider 303 during movement. The servo motor 306 is fixedly installed outside the movable slider 303. The servo motor 306 drives the first roller 307 to rotate, and in conjunction with the pneumatic rod 302, it drives the first roller 307 to move stably towards the second roller 308, thus stably utilizing the first roller 307 and the second roller 308. The electrode sheet is rolled to prevent edge curling. Then, the electric telescopic rod 401 drives the mounting frame 402 to move, fixing the limiting slider 406 in the middle of the lower end of the mounting frame 402. The limiting through hole 407 and the limiting crossbar 408 are used to improve the stability of the limiting slider 406 during movement, thereby preventing the mounting frame 402 from shifting position. The spring damping rod 403 is used to elastically connect the conveying roller 405 connected inside the receiving frame 404 to the mounting frame 402, thereby stably conveying the electrode sheet and preventing problems such as electrode sheet shifting during conveying, thus improving the overall practicality and efficiency of the edge curling device.

[0025] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. An improved roll crimping device for crimping an electrode tab, comprising a receiving base (1) and a roll assembly (3), characterized in that, The upper end of the bearing base (1) is provided with mounting vertical plates (2), and the upper end of the bearing base (1) is provided with a roller pressing assembly (3), and the roller pressing assembly (3) comprises a limiting sliding groove (301), a pneumatic rod (302), a movable sliding block (303), a limiting through groove (304), a limiting vertical rod (305), a servo motor (306), a first roller (307) and a second roller (308), the pneumatic rod (302) is arranged at the upper end of the limiting sliding groove (301), the movable sliding block (303) is arranged at the front end of the pneumatic rod (302), the limiting through groove (304) is arranged at the four corners of the movable sliding block (303), the limiting through groove (304) is connected with the limiting vertical rod (305), the servo motor (306) is arranged at the outside of the movable sliding block (303), the first roller (307) is connected with the front end of the servo motor (306), and the second roller (308) is arranged below the first roller (307), and the limiting assembly (4) is arranged at the upper end of the bearing base (1).

2. The improved roll press pole piece crimping device according to claim 1, wherein, The pneumatic rod (302) and the movable sliding block (303) are vertically arranged, and the pneumatic rod (302) and the movable sliding block (303) are fixedly connected through bolts.

3. The improved roll press pole piece crimping device according to claim 1, wherein, The limiting through groove (304) is matched with the limiting vertical rod (305) in size, and the limiting vertical rod (305) is connected with the movable sliding block (303) through the limiting through groove (304).

4. The improved roll press pole piece crimping device according to claim 1, wherein, The first roller (307) and the second roller (308) are horizontally arranged outside, and the first roller (307) and the second roller (308) are closely attached outside.

5. The improved roll press pole piece crimping device of claim 1, wherein The limiting assembly (4) comprises an electric telescopic rod (401), a mounting frame (402), a spring damping rod (403), a bearing frame (404) and a conveying roller (405), the electric telescopic rod (401) is provided with the mounting frame (402) at the front end, the spring damping rod (403) is arranged at the upper end of the mounting frame (402), the bearing frame (404) is arranged at the front end of the spring damping rod (403), and the conveying roller (405) is connected with the bearing frame (404).

6. The improved roll press pole piece crimping device according to claim 5, wherein, The limiting assembly (4) further comprises a limiting sliding block (406), a limiting through hole (407) and a limiting cross rod (408), the limiting sliding block (406) is arranged at the lower end of the bearing frame (404), the limiting through hole (407) is arranged at the middle end of the limiting sliding block (406), and the limiting cross rod (408) is connected with the limiting through hole (407).

7. The improved roll press pole piece crimping device according to claim 6, wherein The conveying roller (405) is embeddedly connected with the mounting frame (402), and the conveying roller (405) is elastically connected with the mounting frame (402) through the spring damping rod (403).

8. The improved roll press pole piece crimping device according to claim 6, wherein, The limiting through hole (407) is matched with the limiting cross rod (408) in size, and the limiting cross rod (408) is embeddedly connected with the limiting sliding block (406) through the limiting through hole (407).

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