Battery pole piece production device

Abstract

The utility model belongs to the technical field of lithium battery production, and particularly relates to a battery pole piece production device which comprises a working table, first supporting plates are fixedly installed at the front end and the rear end of the center of the top of the working table respectively, a scraping plate is rotationally arranged between the two first supporting plates, and a sliding plate is arranged on one side of the scraping plate in a hinged mode. Second sliding grooves are formed in the sides, close to each other, of the two first supporting plates correspondingly, the sides, away from each other, of the two sliding plates slide in the corresponding second sliding grooves correspondingly, limiting rods are fixedly installed on one sides of the two sliding plates correspondingly, and supporting blocks are integrally and fixedly installed on the sides, close to each other, of the two first supporting plates and located on the sides of the second sliding grooves. The two limiting rods penetrate through the supporting block, and the sides, located on the supporting block, of the limiting rods are sleeved with springs. According to the utility model, the outer surface of the rotating compression roller is cleaned and collected through the scraper, so that the production quality of the electrode plate and the soft package lithium battery is improved, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of lithium battery production technology, specifically relating to a battery electrode production device. Background Technology

[0002] A pouch lithium battery is a rechargeable battery that comes in a pouch shape with a paste-like interior. It mainly consists of a positive electrode, a negative electrode, an electrolyte, a separator, and an outer packaging. It is characterized by its flexible shape, high energy density, good safety, and fast charging speed. The electrode sheet is the core component of the pouch lithium battery and plays a key role in the battery.

[0003] Problems with existing technology:

[0004] In the production process of lithium-ion batteries, the coated electrode sheets need to undergo a rolling process to improve the density and compaction of the electrode sheets and improve battery performance. However, during the production of battery electrode sheets, existing rollers may have the problem of slurry adhesion. This not only affects the rolling effect, resulting in uneven electrode sheet thickness and reduced surface quality, but also increases the difficulty and cost of equipment cleaning and maintenance, and reduces production efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a battery electrode production device that can clean and collect the outer surface of the rotating pressure roller by a scraper, thereby improving the production quality of electrode sheets and soft-pack lithium batteries and increasing production efficiency.

[0006] The specific technical solution adopted by this utility model is as follows:

[0007] A battery electrode production apparatus includes a workbench. Support plates are fixedly installed at the front and rear ends of the top center of the workbench. A scraper is rotatably mounted between the two support plates. A sliding plate is hinged to one side of the scraper. A groove is formed on the side of the two support plates that are close to each other. The sliding plates slide in their respective grooves on the side that are far apart from each other. Limiting rods are fixedly installed on one side of each sliding plate. A support block is integrally fixedly mounted on the side of the two support plates that are close to each other and located on one side of the groove. Springs are sleeved on the side of the two limiting rods that pass through the support block.

[0008] A pressure roller 2 is rotatably embedded between the bottom ends of the two support plates 1. A sliding groove 1 is opened at the top of one side of each of the two support plates 1. A slider is slidably arranged inside each of the two sliding grooves 1. A pressure roller 1 is rotatably arranged between the two sliders. A bolt is rotatably arranged at the center of the top of each of the two sliders. A slip ring is assembled at the front end of each of the pressure roller 1 and pressure roller 2.

[0009] A second support plate is fixedly installed between the two first support plates. A motor is fixedly installed on the top of the second support plate. A cam is fixedly installed on the output end of the motor. A top plate is fixedly installed on the top of the slide plate.

[0010] The inner side of each slide plate is provided with a three-slide groove, and a collection plate is slidably arranged between two of the three slide grooves.

[0011] Guide rollers are fixedly installed on the top of the workbench and on both sides of the support plate. Coating electrode sheets are wound around the top of the guide rollers and the pressure roller. Gear 3 is sleeved on the front end of the pressure roller and the front of the support plate. Gear 1 is rotatably arranged on one side of the front end of the support plate. Gear 2 is rotatably arranged on one side of the front end of the support plate.

[0012] The technical effects achieved by this utility model are as follows:

[0013] This invention utilizes multiple meshing gears to rotate pressure roller one and pressure roller two, thereby coating the electrode sheet through roller pressing. When pressure roller one rotates, a scraper cleans the outer surface of pressure roller one. Simultaneously, a motor drives a cam to rotate, causing the cam to intermittently contact the top of the top plate. This causes the slide plate to move laterally along the slide groove two, and the scraper to intermittently rotate. Consequently, the slurry on the top of the scraper falls along the top of the inclined scraper into the collection trough plate for collection. This prevents the slurry adhering to the roller pressing assembly from falling off and mixing into the electrode sheet during subsequent roller pressing, which would increase impurities inside the electrode sheet and affect the safety and stability of the battery. At the same time, it reduces the difficulty and cost of equipment cleaning and maintenance, and improves production efficiency and quality.

[0014] Electrical energy is transmitted to the heating element installed inside the pressure roller through the collector ring, thereby controlling the temperature of the pressure roller surface, reducing the adhesion of the slurry on the electrode sheet to the outer surface of the pressure roller, and further improving the production quality. The height of the slider can be adjusted by rotating the bolt, thereby adjusting the pressure between the two pressure rollers and flexibly adjusting the rolling effect of the coated electrode sheet. Attached Figure Description

[0015] Figure 1 This is an axonometric view provided by an embodiment of the present invention;

[0016] Figure 2 This is an axonometric view provided by an embodiment of the present invention;

[0017] Figure 3 This is an axial side view of a support plate provided in an embodiment of the present invention;

[0018] Figure 4 This is an exploded view of the support plate provided in an embodiment of the present invention;

[0019] Figure 5 This is provided by an embodiment of the present utility model. Figure 3 Enlarged diagram of point A in the middle.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. Workbench; 2. Guide roller; 3. Coating electrode sheet; 4. Support plate one; 5. Gear one; 6. Gear two; 7. Gear three; 8. Bolt; 9. Support plate two; 10. Motor; 11. Cam; 12. Pressure roller one; 13. Pressure roller two; 14. Slide groove one; 15. Slider; 16. Slip ring; 17. Slide groove two; 18. Support block; 19. Scraper; 20. Slide plate; 21. Slide groove three; 22. Top plate; 23. Sump plate; 24. Limiting rod; 25. Spring. Detailed Implementation

[0022] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0023] like Figures 1-5 As shown, a battery electrode production apparatus includes a workbench 1. Support plates 4 are fixedly installed at the front and rear ends of the top center of the workbench 1. A scraper 19 is rotatably arranged between the two support plates 4. A sliding plate 20 is hinged to one side of the scraper 19. A groove 17 is opened on the side of the two support plates 4 that is close to each other. The two sliding plates 20 slide in the corresponding groove 17 on the side that is far apart from each other. A limit rod 24 is fixedly installed on one side of the two sliding plates 20. A support block 18 is integrally fixedly installed on the side of the two support plates 4 that is close to each other and located on the side of the groove 17. The two limit rods 24 pass through the support block 18 and springs 25 are sleeved on the side of the support block 18.

[0024] See attached document Figure 3 and Figure 4 A second support plate 9 is fixedly installed between two support plates 1 4. A motor 10 is fixedly installed on the top of the second support plate 9. A cam 11 is fixedly installed on the output end of the motor 10. A top plate 22 is fixedly installed on the top of the slide plate 20. A sliding groove 3 21 is opened on the inner side of the slide plate 20. A collection plate 23 is slidably arranged between the two sliding grooves 3 21.

[0025] According to the above structure, when the coated electrode 3 is rolled, the coating machine plate passes between the guide roller 2, the first pressure roller 12, and the second pressure roller 13, and rolls the coated electrode 3 through the first pressure roller 12 and the second pressure roller 13. At the same time, when the first pressure roller 12 rotates, the scraper 19 contacts the outer surface of the first pressure roller 12 to clean the outer surface of the first pressure roller 12, preventing the slurry on the surface of the pressure roller from falling off and mixing into the electrode during subsequent rolling processes, which would increase the impurities inside the electrode and affect the safety and stability of the battery. At the same time, the motor 10 drives the cam 11 to rotate, so that the outermost shaft of the cam 11 contacts the top plate 2 of the slide plate 20. 2. Intermittent contact propels the slide plate 20 to move. The slide plate 20 moves laterally under the force of the second slide groove 17. When the slide plate 20 moves, it rotates and connects with one side of the scraper 19, thereby pushing the scraper 19 to flip. This causes the slurry that has fallen into the top of the scraper 19 to fall into the collection plate 23 along the inclined surface of the top of the scraper 19. When the slide plate 20 moves laterally back and forth, the spring 25 enables the slide plate 20 to return to its original position when the cam 11 is not in contact with the top plate 22. On the other hand, the spring 25 enables the scraper 19 to vibrate when the slide plate 20 moves back and forth, thereby improving the effect of the slurry falling into the collection plate 23 from the top of the scraper 19.

[0026] See attached document Figure 2 A pressure roller 13 is rotatably embedded between the bottom ends of the two support plates 1 4. A groove 14 is opened on the top of one side of each of the two support plates 1 4. A slider 15 is slidably arranged inside each of the two grooves 14. A pressure roller 12 is rotatably arranged between the two sliders 15. A bolt 8 is rotatably arranged at the center of the top of each slider 15. A slip ring 16 is assembled at the front end of both the pressure roller 12 and the pressure roller 13.

[0027] See attached document Figure 1 Guide rollers 2 are fixedly installed on the top of the workbench 1 and on both sides of the support plate 1 4. The top of the guide rollers 2 and the pressure roller 2 13 are together wrapped with coating electrode sheets 3. The front ends of the pressure roller 1 12 and the front of the support plate 1 4 are both fitted with gear 3 7. Gear 1 5 is rotatably arranged on one side of the front end of the support plate 1 4. Gear 2 6 is rotatably arranged on one side of the front end of the support plate 1 4 and on the top of gear 1 5.

[0028] According to the above structure, the gear 7 at the front end of the pressure roller 13 meshes with the gear 5 at the bottom end of one side of the support plate 4. The two gears 5 mesh with each other. The gear 5 at the bottom end of the support plate 4 meshes with the gear 7 at the front end of the pressure roller 12. Thus, the pressure roller 12 and the pressure roller 13 rotate towards each other through multiple gears, thereby rolling the coated electrode 3. When adjusting the rolling effect of the coated electrode 3, the height of the slider 15 is adjusted by rotating the bolt 8 screwed to the top of the support plate 4, thereby adjusting the distance between the pressure roller 12 and the pressure roller 13. At the same time, the electric energy is transmitted to the heating element installed inside the pressure roller through the collector ring 16, thereby enabling precise control of the surface temperature of the pressure roller 12 and the pressure roller 13 according to the rolling process requirements, thereby reducing slurry adhesion.

[0029] The working principle of this utility model is as follows: When the coated electrode sheet 3 is rolled, the coating machine plate passes between the guide roller 2, the first pressure roller 12, and the second pressure roller 13, and the coated electrode sheet 3 is rolled by the first pressure roller 12 and the second pressure roller 13. When the rolling effect of the coated electrode sheet 3 is adjusted, the height of the slider 15 is adjusted by rotating the bolt 8 screwed to the top of the support plate 14, thereby adjusting the distance between the first pressure roller 12 and the second pressure roller 13. At the same time, when the first pressure roller 12 rotates, the scraper 19 contacts the outer surface of the first pressure roller 12 to clean the outer surface of the first pressure roller 12, so as to prevent the slurry on the surface of the pressure roller from falling off and mixing into the electrode sheet during subsequent rolling processes, which would increase the impurities inside the electrode sheet and affect the safety and stability of the battery. At the same time, the motor 10 drives the cam 11 to rotate, so that the outermost part of the cam 11... The side shaft intermittently contacts the top plate 22 of the slide plate 20, pushing the slide plate 20 to move. The slide plate 20 moves laterally under the force of the second slide groove 17. When the slide plate 20 moves, it rotates and connects with one side of the scraper 19, thereby pushing the scraper 19 to flip. This causes the slurry that has fallen onto the top of the scraper 19 to fall along the inclined surface of the top of the scraper 19 into the collection plate 23. When the slide plate 20 moves laterally back and forth, the spring 25 enables the slide plate 20 to return to its original position when the cam 11 is not in contact with the top plate 22. On the other hand, the spring 25 causes the scraper 19 to vibrate during the reciprocating motion of the slide plate 20, thereby improving the effect of the slurry falling onto the collection plate 23. At the same time, the collection plate 23 is fixedly installed with the slide plate 20 through the third slide groove 21, which facilitates the quick collection and cleaning of the slurry inside the collection plate 23.

[0030] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A battery electrode production apparatus, comprising a workbench (1), characterized in that: The front and rear ends of the workbench (1) are fixedly installed with support plates (4) at the top center. A scraper (19) is rotatably arranged between the two support plates (4). A sliding plate (20) is hinged to one side of the scraper (19). A sliding groove (17) is opened on the side of the two support plates (4) that are close to each other. The two sliding plates (20) slide in the corresponding sliding groove (17) on the side that is far away from each other. A limit rod (24) is fixedly installed on one side of the two sliding plates (20). A support block (18) is integrally fixedly installed on the side of the two support plates (4) that are close to each other and on the side of the sliding groove (17). The two limit rods (24) pass through the support block (18) and a spring (25) is sleeved on the side of the support block (18) of the limit rods (24).

2. The battery electrode production apparatus according to claim 1, characterized in that: A pressure roller 2 (13) is rotatably embedded between the bottom ends of the two support plates 1 (4). A sliding groove 1 (14) is opened on the top of one side of each of the two support plates 1 (4). A slider 15 is slidably arranged inside each of the two sliding grooves 1 (14). A pressure roller 1 (12) is rotatably arranged between the two sliders 15. A bolt 8 is rotatably arranged at the center of the top of each of the two sliders 15. A collector ring 16 is assembled at the front end of each of the pressure roller 1 (12) and pressure roller 2 (13).

3. The battery electrode production apparatus according to claim 1, characterized in that: A second support plate (9) is fixedly installed between the two support plates (4). A motor (10) is fixedly installed on the top of the second support plate (9). A cam (11) is fixedly installed at the output end of the motor (10). A top plate (22) is fixedly installed on the top of the slide plate (20).

4. The battery electrode production apparatus according to claim 1, characterized in that: The inner side of each of the slide plates (20) is provided with a three-slide groove (21), and a collection plate (23) is slidably arranged between the two three-slide grooves (21).

5. A battery electrode production apparatus according to claim 2, characterized in that: Guide rollers (2) are fixedly installed on the top of the workbench (1) and on both sides of the support plate (4). The top of the guide rollers (2) and the pressure rollers (13) are wrapped with coating plates (3). The front ends of the pressure rollers (12) and the front of the support plate (4) are fitted with gears (7). Gears (5) are rotatably arranged on one side of the front end of the support plate (4). Gears (6) are rotatably arranged on one side of the front end of the support plate (4) and on the top of gears (5).

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