Uniform coating device for lithium battery production

Abstract

The utility model discloses a uniform coating device for lithium battery production, which comprises a bin body, two sides of the upper end of the bin body are symmetrically and fixedly connected with mounting plates, one side, close to the bin body, below each mounting plate is connected with a coating roller through a shaft, one side, located on the coating roller, of each mounting plate is connected with a conveying roller through a shaft, and one side, located on the coating roller, of each mounting plate is provided with a first scraper; the electrode plate coating device has the advantages that the coating roller rotates clockwise to evenly dip the coating in the bin body, then the electrode plate can be evenly coated with the dipped coating, the electrode plate coating device is convenient and fast to use, the coating uniformity and stability are high, the coating efficiency is high, and the coating quality is high. And a third scraping plate in the coating and scraping mechanism can be used for scraping the coating on the electrode plate, and the coating and scraping mechanism can be used for adjusting the distance between the third scraping plate and the electrode plate, so that the scraping thickness is convenient to adjust.

Description

Technical Field

[0001] The utility model relates to the technical field of coating devices for lithium battery production, in particular to a uniform coating device for lithium battery production. Background Art

[0002] Lithium battery is a kind of battery that uses lithium metal or lithium alloy as positive / negative electrode material and uses non-aqueous electrolyte solution. Lithium battery has pole pieces, and pole pieces are the core of lithium battery. When producing lithium battery pole pieces, a coating device is needed. Chinese patent CN217911217U discloses a lithium battery pole piece uniform coating device, which relates to the field of lithium battery production technology, including a coating body, the inner side of the coating body is movably connected with a discharge shaft and a feeding shaft, the outer side of the discharge shaft is threadedly connected with an adjusting disk, the inner side of the coating body is fixedly connected to the side away from the feeding shaft with a coating plate, the front of the coating body is fixedly connected with a coating box, the top of the coating box is fixedly connected with a feed pipe, the top of the coating body is fixedly connected with a bracket, the front of the bracket is fixedly connected with a feeding mechanism, and the inner side of the bracket is fixedly connected with a cloth pressing mechanism and a scraper. The utility model is provided with a screw rod, a nut seat, a spray head, a cloth pressing rod, an adjustment frame and a cloth pressing frame, so that the paint can be more evenly coated on the lithium battery pole piece, thereby improving the coating effect of the coating device.

[0003] The above-mentioned prior art has the following shortcomings: The prior art uses a moving spray head for coating. This method, because the material being coated is constantly moving during coating, can easily lead to uneven coating by the spray head. Therefore, a uniform coating device for lithium battery production is provided to solve the above problems. Utility Model Content

[0004] In order to solve the problems in the above background technology, the technical solution adopted by the utility model to solve the technical problems is: a uniform coating device for lithium battery production, which includes: a warehouse body, a mounting plate symmetrically fixedly connected to both sides of the upper end of the warehouse body, a coating roller connected to the lower side of the mounting plate close to the warehouse body through an axis, the mounting plate is located on one side of the coating roller and is connected to the conveying roller through the axis, the mounting plate is located on one side of the coating roller and is provided with a first scraper, the mounting plate is located on the conveying roller and is provided with a second scraper, and a coating scraper mechanism is provided on one side of the upper end of the mounting plate.

[0005] As an optimal technical solution of the present utility model, the coating scraper mechanism includes a fixed plate, a knob, a bearing, a threaded rod, and a third scraper. The bearing is arranged on the inner side of the middle part of the fixed plate, the threaded rod is connected to the inside of the bearing, the knob is fixedly connected to one end of the threaded rod, and the other end of the threaded rod is threadedly connected to the inside of the third scraper.

[0006] As an optimal technical solution of the present invention, the fixed plate is fixedly connected to the inner side of the upper end of the mounting plate, and the third scraper is fixedly connected to a guide rod on the side facing the fixed plate, and the guide rod slides through the interior of the fixed plate.

[0007] As an optimal technical solution of the present invention, both ends of the first scraper are fixedly connected to the first shaft, and both ends of the second scraper are fixedly connected to the second shaft. The first shaft and the second shaft pass through one end of the mounting plate and are both sleeved with torsion springs.

[0008] As a preferred technical solution of the present invention, the coating roller passes through one end of the mounting plate and is fixedly connected to a first belt pulley, and the conveying roller passes through one end of the mounting plate and is fixedly connected to a second belt pulley.

[0009] As a preferred technical solution of the present invention, the mounting plate is located above the conveying roller and is connected to a material guide roller via a shaft. The conveying roller and the outer side of the material guide roller are wrapped with electrode sheets.

[0010] As a preferred technical solution of the present invention, the first scraper is attached to the outer circumference of the coating roller, the second scraper is attached to the outer circumference of the conveying roller, and the interior of the hopper is filled with paint.

[0011] The utility model has the following advantages: the coating roller rotates clockwise to evenly dip the coating in the bin, and the dipped coating can be evenly coated on the electrode sheet, which is convenient and quick, and the coating is uniform and stable;

[0012] The coating on the electrode sheet can be scraped flat by the third scraper in the coating scraper mechanism, and the coating scraper mechanism can adjust the distance between the third scraper and the electrode sheet, so as to facilitate the adjustment of the scraping thickness;

[0013] The first scraper can scrape off the paint on the surface of the coating roller, and then promptly remove the residue on the coating roller to further ensure uniform coating. The second scraper can allow the paint coated on the surface of the electrode sheet to fall directly into the bin when it falls. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of the utility model;

[0015] Figure 2 It is a schematic cross-sectional view of a preferred embodiment of the present utility model;

[0016] Figure 3 It is a partial structural diagram of the coating and scraping mechanism of the preferred embodiment of the utility model.

[0017] Explanation of the accompanying drawings: 1. Warehouse body; 2. Mounting plate; 3. Coating roller; 4. Conveying roller; 5. Fixing plate; 6. Knob; 7. Bearing; 8. Threaded rod; 9. Third scraper; 10. Guide rod; 11. First scraper; 12. First shaft; 13. Second scraper; 14. Second shaft; 15. Torsion spring; 16. First pulley; 17. Second pulley; 18. Electrode sheet; 19. Guide roller. DETAILED DESCRIPTION

[0018] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. In the description of the present invention, it should be noted that the terms "center," "up," "down," "left," "right," "vertical," "horizontal," "inside," "outside," and the like, indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be construed as limiting the present invention. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] Please refer to Figure 1-Figure 3 The utility model is a uniform coating device for lithium battery production, comprising: a warehouse body 1, mounting plates 2 are symmetrically fixedly connected on both sides of the upper end of the warehouse body 1, a coating roller 3 is connected to the side of the mounting plate 2 near the warehouse body 1 through an axis, the mounting plate 2 is located on one side of the coating roller 3 and is connected to the conveying roller 4 through an axis, the mounting plate 2 is located on one side of the coating roller 3 and is provided with a first scraper 11, the mounting plate 2 is located on the conveying roller 4 and is provided with a second scraper 13, and a coating scraper mechanism is provided on one side of the upper end of the mounting plate 2.

[0022] Combine Figure 2 and Figure 3As shown, the coating scraper mechanism includes a fixed plate 5, a knob 6, a bearing 7, a threaded rod 8, and a third scraper 9. The bearing 7 is arranged on the inner side of the middle of the fixed plate 5, and the threaded rod 8 is connected to the inside of the bearing 7. The bearing 7 facilitates manual rotation of the threaded rod 8, and then the distance between the third scraper 9 and the electrode sheet 18 is adjusted by the threaded rod 8. The knob 6 is fixedly connected to one end of the threaded rod 8, and the other end of the threaded rod 8 is threadedly connected to the inside of the third scraper 9. The fixed plate 5 is fixedly connected to the inner side of the upper end of the mounting plate 2. The third scraper 9 is fixedly connected to a guide rod 10 on the side facing the fixed plate 5. The guide rod 10 Sliding through the interior of the fixed plate 5, both ends of the first scraper 11 are fixedly connected to the first shaft 12, and both ends of the second scraper 13 are fixedly connected to the second shaft 14. The first shaft 12 and the second shaft 14 pass through one end of the mounting plate 2 and are sleeved with a torsion spring 15. The torsion spring 15 can make the first scraper 11 always keep in contact with the outer side of the coating roller 3, so that the coating roller 3 can rotate after coating to scrape off the paint on the surface, and the torsion spring 15 can make the second scraper 13 fit the electrode sheet 18 on the conveying roller 4, so that the paint coated on the surface of the electrode sheet 18 can fall directly into the bin body 1 when it falls.

[0023] Among them, the shaft of the coating roller 3 passes through the mounting plate 2 and is fixedly connected to the first belt pulley 16 at one end, the shaft of the conveying roller 4 passes through the mounting plate 2 and is fixedly connected to the second belt pulley 17 at one end, the mounting plate 2 is located above the conveying roller 4 and is connected to the guide roller 19 through the shaft, the conveying roller 4 and the guide roller 19 are wrapped with an electrode sheet 18 on the outside, the first scraper 11 is attached to the outer side of the circumference of the coating roller 3, the second scraper 13 is attached to the outer side of the circumference of the conveying roller 4, and the interior of the bin body 1 is filled with paint.

[0024] Specifically, when the present invention is used, the paint is poured into the bin body 1, and then the first belt pulley 16 is driven by the belt to rotate clockwise and the second belt pulley 17 is driven to rotate, and then the first belt pulley 16 rotates together with the coating roller 3, and then the coating roller 3 evenly dips the paint in the bin body 1 and evenly applies the dipped paint on the electrode sheet 18. The electrode sheet 18 is conveyed counterclockwise by the conveying roller 4 and the guide roller 19, and when the paint coated on the electrode sheet 18 passes through the third scraper 9, it can be scraped flat.

[0025] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

[0026] Other parts of the present invention that are not described in detail belong to the prior art and will not be described in detail here.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A uniform coating device for lithium battery production, characterized in that: include: A silo (1) is provided, wherein mounting plates (2) are symmetrically fixedly connected to both sides of the upper end of the silo (1), a coating roller (3) is connected to the lower side of the mounting plate (2) close to the silo (1) via a shaft, the mounting plate (2) is located on one side of the coating roller (3) and is connected to a conveying roller (4) via a shaft, the mounting plate (2) is located on one side of the coating roller (3) and is provided with a first scraper (11), the mounting plate (2) is located on the conveying roller (4) and is provided with a second scraper (13), and a coating scraper mechanism is provided on one side of the upper end of the mounting plate (2).

2. A uniform coating device for lithium battery production according to claim 1, characterized in that: The coating scraper mechanism comprises a fixed plate (5), a knob (6), a bearing (7), a threaded rod (8), and a third scraper (9); the bearing (7) is arranged on the inner side of the middle portion of the fixed plate (5); the threaded rod (8) is connected to the inside of the bearing (7); the knob (6) is fixedly connected to one end of the threaded rod (8); and the other end of the threaded rod (8) is threadedly connected to the inside of the third scraper (9).

3. A uniform coating device for lithium battery production according to claim 2, characterized in that: The fixing plate (5) is fixedly connected to the inner side of the upper end of the mounting plate (2); the third scraper (9) is fixedly connected to a guide rod (10) on the side facing the fixing plate (5); and the guide rod (10) slides through the interior of the fixing plate (5).

4. A uniform coating device for lithium battery production according to claim 1, characterized in that: Both ends of the first scraper (11) are fixedly connected to a first shaft (12), and both ends of the second scraper (13) are fixedly connected to a second shaft (14). The first shaft (12) and the second shaft (14) pass through one end of the mounting plate (2) and are sleeved with a torsion spring (15).

5. A uniform coating device for lithium battery production according to claim 1, characterized in that: The coating roller (3) shaft passes through the mounting plate (2) and is fixedly connected to a first belt pulley (16) at one end, and the conveying roller (4) shaft passes through the mounting plate (2) and is fixedly connected to a second belt pulley (17) at one end.

6. A uniform coating device for lithium battery production according to claim 1, characterized in that: The mounting plate (2) is located above the conveying roller (4) and is connected to a material guide roller (19) via a shaft. Electrode sheets (18) are wound around the outer sides of the conveying roller (4) and the material guide roller (19).

7. A uniform coating device for lithium battery production according to claim 1, characterized in that: The first scraper (11) is attached to the outer circumference of the coating roller (3), the second scraper (13) is attached to the outer circumference of the conveying roller (4), and the interior of the bin body (1) is filled with paint.

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