Rolling device for lithium battery production

Abstract

The utility model belongs to the technical field of roller presses, and particularly relates to a rolling device for lithium battery production, which comprises supporting plates, a main roller rotatably connected between the inner sides of the two supporting plates, sliding rails fixedly connected to the inner sides of the two supporting plates, sliding blocks slidably connected to the interiors of the two sliding rails, and a roller connected with the main roller. A control module is fixedly connected to one side of the supporting plate, a second mounting plate is fixedly connected to the inner side, close to one side of the control module, of the sliding block, and connecting rods distributed at equal intervals are fixedly connected to the other side of the second mounting plate; and first mounting plates are fixedly connected between the inner sides of the sliding blocks far away from one side of the control module and the other ends of the connecting rods distributed at equal intervals. The first motor drives the threaded rod to rotate, the threaded rod is matched with the sliding block to drive the third auxiliary roller, the second auxiliary roller and the first auxiliary roller to be far away from the main roller, the distance between the auxiliary rollers and the main roller is increased, and the negative effect on the flatness of the pole piece when the thickness of an excessively thick pole piece material changes greatly is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of roller presses, and specifically relates to a rolling device for lithium battery production. Background Art

[0002] Roller presses, namely double-roll presses, rolling mills, and tablet presses, are widely used in industries such as chemical engineering and electronics. They have the advantages of being adjustable, having high hardness, high precision, automation, and being easy to operate. Roller presses are also used in the production process of lithium batteries.

[0003] After retrieval, the existing Chinese patent publication number CN215008319U provides a rolling device for lithium battery production. This patent includes a frame, and a rolling mechanism for pressing the electrode sheet is arranged on the frame. The rolling mechanism includes a main roller, a first auxiliary roller, and a second auxiliary roller. The electrode sheet passes between the main roller and the first auxiliary roller and between the main roller and the second auxiliary roller in sequence. The main roller and the first auxiliary roller perform the first rolling on the electrode sheet, and at the same time, an auxiliary mechanism is used to limit the width change of the electrode sheet. The rolling device for lithium battery production then performs the second rolling on the electrode sheet through the main roller and the second auxiliary roller to complete the rolling process. Since the electrode sheet has been subjected to the first rolling, the width change during the second rolling can be ignored, and finally, the effect of maintaining the consistency of the electrode sheet along the width is achieved.

[0004] Although the above patent can control the effect of maintaining the consistency of the electrode sheet along the width, the above rolling device for lithium battery production still has the following problems: The positions of the three pressing rollers of this device are all fixed and cannot be moved. That is, the gap between the two pressing rollers during the first rolling is of a fixed size. When processing electrode sheets made of thicker materials, the large thickness change during the first pressing process is likely to have a negative impact on the flatness of the electrode sheet material.

[0005] In view of the above problems, a rolling device for lithium battery production is proposed. Summary of the Utility Model

[0006] In order to make up for the deficiencies of the prior art and solve the problems in the background art, a rolling device for lithium battery production is proposed.

[0007] The technical solution adopted by the present utility model to solve its technical problems is as follows: A rolling device for lithium battery production according to the present utility model includes a support plate. A main roller is rotatably connected between the inner sides of the two support plates. Slide rails are fixedly connected to the inner sides of both support plates. Sliders are slidably connected inside both slide rails. A control module is fixedly connected to one side of the support plate. A second mounting plate is fixedly connected to the inner side of the slider close to the control module. Connecting rods distributed at equal intervals are fixedly connected to the other side of the second mounting plate. First mounting plates are fixedly connected between the inner side of the slider far from the control module and the other ends of the connecting rods distributed at equal intervals. A third auxiliary roller is rotatably connected to the upper part of the inner sides of the two first mounting plates. A second auxiliary roller is arranged below the first mounting plate and is rotatably connected to the first mounting plate. A first auxiliary roller is arranged below the second auxiliary roller and is rotatably connected to the first mounting plate. A fourth auxiliary roller is rotatably connected between the inner sides of the two support plates close to the control module and corresponds to the main roller. A cleaning component is arranged on the side of the first mounting plate far from the control module.

[0008] Preferably, the cleaning component includes a connecting plate. The connecting plate is fixedly connected to the first mounting plate. Scrapers distributed at equal intervals are fixedly connected between the inner sides of the two connecting plates and respectively correspond to the third auxiliary roller, the second auxiliary roller, and the first auxiliary roller. A storage box is fixedly connected between the lower sides of the two connecting plates.

[0009] Preferably, equally spaced second motors are fixedly connected to the outer side of the first mounting plate close to the second mounting plate, and the output ends of the equally spaced second motors are respectively fixedly connected to the third auxiliary roller, the second auxiliary roller, and the first auxiliary roller.

[0010] Preferably, a threaded rod is threadedly connected to the middle of the slider far from the second mounting plate, and the threaded rod is rotatably connected to the slide rail. A limiting rod is slidably connected to the middle of the slider close to the second mounting plate, and the limiting rod is fixedly connected to the slide rail.

[0011] Preferably, a first motor is fixedly connected to one side of the slide rail far from the second mounting plate, and the output end of the first motor is fixedly connected to the threaded rod.

[0012] Preferably, a fixed base is fixedly connected between the bottoms of the two support plates.

[0013] The beneficial effects of the present utility model:

[0014] The present utility model provides a rolling device for lithium battery production. By driving the threaded rod to rotate through the first motor, and cooperating with the slider, the third auxiliary roller, the second auxiliary roller, and the first auxiliary roller are driven to move away from the main roller, expanding the distance from the main roller, and avoiding negative impacts on the flatness of the pole piece when the overly thick pole piece material has a large thickness change. Brief Description of the Drawings

[0015] The drawings described herein are provided to further understand the present utility model and form a part of this application. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0016] Figure 1 is a perspective view of the present utility model;

[0017] Figure 2 is a schematic view of the first motor in the present utility model;

[0018] Figure 3 is a schematic view of the threaded rod in the present utility model;

[0019] Figure 4 is a schematic view of the storage box in the present utility model;

[0020] Figure 5 is a schematic view of the first auxiliary roller in the present utility model;

[0021] Legend Explanation:

[0022] 1. Support plate; 2. Fourth auxiliary roller; 3. Control module; 4. Fixed base; 5. Main roller; 6. Connecting plate; 7. Slide rail; 8. First motor; 9. Third auxiliary roller; 10. Scraper; 11. Storage box; 12. Second motor; 13. Second mounting plate; 14. Slide block; 15. Limiting rod; 16. Link rod; 17. First mounting plate; 18. Threaded rod; 19. Second auxiliary roller; 20. First auxiliary roller. Detailed Description of the Preferred Embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] The following gives specific examples.

[0025] Please refer to Figure 1 - Figure 5, the present utility model provides a rolling device for lithium battery production, including a support plate 1. Between the inner sides of the two support plates 1, a main roller 5 is rotatably connected. On the inner sides of both support plates 1, a slide rail 7 is fixedly connected. Inside both slide rails 7, a slider 14 is slidably connected. On one side of the support plate 1, a control module 3 is fixedly connected. Inside the slider 14 near the control module 3, a second mounting plate 13 is fixedly connected. On the other side of the second mounting plate 13, a plurality of equally spaced connecting rods 16 are fixedly connected. Between the inner side of the slider 14 far from the control module 3 and the other ends of the equally spaced connecting rods 16, a first mounting plate 17 is fixedly connected. On the upper part of the inner sides of the two first mounting plates 17, a third auxiliary roller 9 is rotatably connected. Below the first mounting plate 17, a second auxiliary roller 19 is provided, and the second auxiliary roller 19 is rotatably connected to the first mounting plate 17. Below the second auxiliary roller 19, a first auxiliary roller 20 is provided, and the first auxiliary roller 20 is rotatably connected to the first mounting plate 17. Between the inner sides of the two support plates 1 near the control module 3, a fourth auxiliary roller 2 is rotatably connected, and the fourth auxiliary roller 2 corresponds to the main roller 5. On the side of the first mounting plate 17 far from the control module 3, a cleaning component is provided.

[0026] During operation, when the device needs to be used, first, the second motor 12 drives the first auxiliary roller 20, the second auxiliary roller 19, and the third auxiliary roller 9 to rotate and cooperate with the main roller 5 to perform the first rolling of the pole piece. Then, the pole piece is driven by the main roller 5 and cooperates with the fourth auxiliary roller 2 to perform the second rolling of the pole piece. Among them, when the thickness of the unrolled pole piece material is too thick, first, the first motor 8 is started to drive the threaded rod 18 to rotate. Further, through the cooperation with the slider 14, the first mounting plate 17 and the structures directly or indirectly connected to the first mounting plate 17 are driven to move away from the main roller 5, expanding the distance between the main roller 5 and the third auxiliary roller 9, the second auxiliary roller 19, and the first auxiliary roller 20. Thus, when the pole piece is first rolled, the relatively thick pole piece is rolled by the first auxiliary roller 20, the second auxiliary roller 19, and the third auxiliary roller 9 in a manner of linearly reducing the thickness, so that the thickness change of the pole piece is relatively gentle, avoiding the negative impact on the flatness of the pole piece caused by a large drop in thickness change.

[0027] Further, as Figure 4 and Figure 5As shown in the figure, the cleaning component includes a connecting plate 6, the connecting plate 6 is fixedly connected to the first mounting plate 17, and a plurality of scraping plates 10 are fixedly connected between the inner sides of the two connecting plates 6 at equal intervals. The scraping plates 10 correspond to the third auxiliary roller 9, the second auxiliary roller 19, and the first auxiliary roller 20 respectively. A storage box 11 is fixedly connected between the lower sides of the two connecting plates 6. A plurality of second motors 12 are fixedly connected to the outer side of the first mounting plate 17 near the second mounting plate 13 at equal intervals. The output ends of the plurality of second motors 12 are fixedly connected to the third auxiliary roller 9, the second auxiliary roller 19, and the first auxiliary roller 20 respectively. A threaded rod 18 is threadedly connected to the middle of the slider 14 on the side away from the second mounting plate 13, and the threaded rod 18 is rotatably connected to the slide rail 7. A limiting rod 15 is slidably connected to the middle of the slider 14 on the side near the second mounting plate 13, and the limiting rod 15 is fixedly connected to the slide rail 7. A first motor 8 is fixedly connected to one side of the slide rail 7 on the side away from the second mounting plate 13, and the output end of the first motor 8 is fixedly connected to the threaded rod 18. A fixed base 4 is fixedly connected between the bottoms of the two support plates 1.

[0028] During operation, during the rolling process of the pole piece, the scraping plate 10 provided on one side of the first mounting plate 17 can scrape the surfaces of the third auxiliary roller 9, the second auxiliary roller 19, and the first auxiliary roller 20, scraping off the dirt adhered to the surfaces. The scraped dirt slides down along the inclined surface of the scraping plate 10 into the storage box 11 and is collected.

[0029] Working principle: When the device needs to be used, first, the second motor 12 drives the first auxiliary roller 20, the second auxiliary roller 19, and the third auxiliary roller 9 to rotate and cooperate with the main roller 5 to perform the first rolling of the pole piece. Then, the pole piece is driven by the main roller 5 and cooperates with the fourth auxiliary roller 2 to perform the second rolling of the pole piece. Among them, when the thickness of the unrolled pole piece material is too thick, first, the first motor 8 is started to drive the threaded rod 18 to rotate. Further, through the cooperation with the slider 14, the first mounting plate 17 and the structures directly or indirectly connected to the first mounting plate 17 are driven to move away from the main roller 5, expanding the distance between the main roller 5 and the third auxiliary roller 9, the second auxiliary roller 19, and the first auxiliary roller 20. Then, when the pole piece is first rolled, the relatively thick pole piece is rolled by the first auxiliary roller 20, the second auxiliary roller 19, and the third auxiliary roller 9 in a way of linearly reducing the thickness, so that the thickness change of the pole piece is relatively gentle, avoiding the negative impact on the flatness of the pole piece caused by a large drop in thickness. During the rolling process of the pole piece, the scraping plate 10 provided on one side of the first mounting plate 17 can scrape the surfaces of the third auxiliary roller 9, the second auxiliary roller 19, and the first auxiliary roller 20, scraping off the dirt adhered to the surfaces. The scraped dirt slides down along the inclined surface of the scraping plate 10 into the storage box 11 and is collected.

[0030] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above-mentioned embodiments, and what is described in the above-mentioned embodiments and the specification is only to illustrate the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements fall within the scope of the present utility model claimed.

Claims

1. A rolling device for lithium battery production, characterized in that: It includes a support plate (1). A main roller (5) is rotatably connected between the inner sides of the two support plates (1). Slide rails (7) are fixedly connected to the inner sides of both support plates (1). Sliders (14) are slidably connected inside the two slide rails (7). A control module (3) is fixedly connected to one side of the support plate (1). A second mounting plate (13) is fixedly connected to the inner side of the slider (14) close to the control module (3). Equally spaced connecting rods (16) are fixedly connected to the other side of the second mounting plate (13). Fixed connections are made between the inner sides of the sliders (14) on the side away from the control module (3) and the other ends of the equally spaced connecting rods (16) and first mounting plates (17). A third auxiliary roller (9) is rotatably connected to the upper part of the inner sides of the two first mounting plates (17). A second auxiliary roller (19) is arranged below the first mounting plate (17), and the second auxiliary roller (19) is rotatably connected to the first mounting plate (17). A first auxiliary roller (20) is arranged below the second auxiliary roller (19), and the first auxiliary roller (20) is rotatably connected to the first mounting plate (17). A fourth auxiliary roller (2) is rotatably connected between the inner sides of the two support plates (1) on the side close to the control module (3), and the fourth auxiliary roller (2) corresponds to the main roller (5). A cleaning component is arranged on the side of the first mounting plate (17) away from the control module (3).

2. The rolling device for lithium battery production according to claim 1, wherein: The cleaning component includes a connecting plate (6). The connecting plate (6) is fixedly connected to the first mounting plate (17). Equally spaced scraping plates (10) are fixedly connected between the inner sides of the two connecting plates (6), and the scraping plates (10) correspond to the third auxiliary roller (9), the second auxiliary roller (19), and the first auxiliary roller (20) respectively. A storage box (11) is fixedly connected between the lower sides of the two connecting plates (6).

3. A rolling device for lithium battery production according to claim 1, characterized in that: Equally spaced second motors (12) are fixedly connected to the outer sides of the first mounting plates (17) on the side close to the second mounting plate (13), and the output ends of the equally spaced second motors (12) are fixedly connected to the third auxiliary roller (9), the second auxiliary roller (19), and the first auxiliary roller (20) respectively.

4. A rolling device for lithium battery production according to claim 1, characterized in that: A threaded rod (18) is threadedly connected to the middle of the slider (14) on the side away from the second mounting plate (13), and the threaded rod (18) is rotatably connected to the slide rail (7). A limiting rod (15) is slidably connected to the middle of the slider (14) on the side close to the second mounting plate (13), and the limiting rod (15) is fixedly connected to the slide rail (7).

5. A rolling device for lithium battery production according to claim 1, characterized in that: A first motor (8) is fixedly connected to one side of the slide rail (7) on the side away from the second mounting plate (13), and the output end of the first motor (8) is fixedly connected to the threaded rod (18).

6. The roll pressing device for lithium battery production according to claim 1, characterized in that: A fixed base (4) is fixedly connected between the bottoms of the two support plates (1).

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