Drying device for graphite negative plate

Abstract

The utility model relates to the technical field of lithium batteries, and discloses a graphite cathode piece drying device which comprises two mounting plates, a placing assembly and a material receiving box are mounted between the two mounting plates, and an air supply assembly is mounted on the left side of the left mounting plate. According to the graphite cathode piece placing device, the placing assembly is arranged, a graphite cathode piece is placed in a placing groove plate, then a threaded rod is rotated, and a toothed plate drives a driving gear and a transmission gear to rotate, so that a gear A drives a gear B to rotate, and meanwhile, the transmission gear drives the gear B on the left side to rotate; the left rotating rod and the right rotating rod rotate together, the rotating directions of the left rotating rod and the right rotating rod are opposite, and after the graphite negative electrode plate is fixed, the motor is started, so that the placing groove plate rotates in the vertical direction, and the graphite negative electrode plate can be uniformly dried in the rotating process; and meanwhile, liquid generated in the drying process is thrown out, so that the drying effect of the graphite negative plate is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium batteries, in particular to a drying device for graphite negative electrode sheets. Background Art

[0002] The graphite negative electrode sheet is a negative electrode material used in batteries such as lithium ion batteries. It has high electrical conductivity, excellent chemical stability and high temperature resistance. It plays an important role in storing and releasing lithium ions in the battery, affecting the performance and cycle life of the battery. The quality and preparation process of the graphite negative electrode sheet have an important impact on the battery performance. Therefore, attention should be paid to the protection and operation specifications of the graphite negative electrode sheet during the production and application processes.

[0003] In the Chinese utility model patent with the publication number of CN220793706U, a drying device for lithium battery negative electrode sheets is disclosed. By setting a drying table, the liquid adhered to the lithium battery negative electrode sheet is thrown out under the rotation of the drying table. After the liquid is thrown out, the dryer provides hot air. The hot air passes upward through the hot air holes and then passes upward through the heat conduction holes under the guiding action of the heat conduction frame to contact the lithium battery negative electrode sheet, accelerating the drying of the lithium battery negative electrode sheet. When curing the negative electrode sheet, the rotating motor does not need to rotate. The structure adopted in this scheme is reasonable, has good use effect, is simple and convenient to operate, and has low labor intensity.

[0004] Regarding the above related technologies, the inventor believes that there are the following defects: when the device dries the graphite negative electrode sheet, it can only dry one side of the graphite negative electrode sheet at a time. It is very troublesome to flip the graphite negative electrode sheet and then dry it again. At the same time, after fixing multiple graphite negative electrode sheets, it is very troublesome to release the fixation of the graphite negative electrode sheets one by one after drying. Summary of the Utility Model

[0005] To solve the above-mentioned technical problems, the utility model provides a drying device for graphite negative electrode sheets.

[0006] The utility model is realized by adopting the following technical solutions: a drying device for graphite negative electrode sheets includes two mounting plates. A placing component and a receiving box are mounted between the two mounting plates. A gas supply component is mounted on the left side of the left mounting plate.

[0007] The placement component includes a placement groove plate. Hollow plates are fixedly connected to both the front and back of the placement groove plate. Connecting rods are fixedly connected to both sides of the placement groove plate. Both ends of the connecting rods are rotatably connected to the inner walls of the hollow plates. The left end of the left connecting rod is rotatably connected to the right side of the left mounting plate. The right end of the right connecting rod passes through the right mounting plate and is fixedly connected to a motor. Left turning rods and right turning rods are equidistantly installed at the top and bottom of the placement groove plate. Collars are equidistantly sleeved on the surfaces of the left turning rods and the right turning rods. Limiting blocks are fixedly connected to the surfaces of the collars. A gear A is sleeved on the outside of the left turning rod. A gear B and a driving gear are respectively sleeved on the surface of the right turning rod. The surface of the gear B is meshed with the surface of the gear A. The surface of the driving gear is meshed with a toothed plate. A threaded rod is rotatably connected to the right side of the toothed plate. The surface of the left gear A is meshed with a driven gear. Both ends of the intermediate shaft of the driven gear are rotatably connected to the inner wall of the hollow plate. A transmission gear meshed with the surface of the toothed plate is sleeved on the outside of the intermediate shaft of the driven gear.

[0008] The air supply component includes a circulating fan installed on the right side of the left mounting plate. The input end of the circulating fan is communicated with an air suction hood through a connecting pipe. Both sides of the air suction hood are respectively fixedly connected to the inner walls of the two mounting plates. The output end of the circulating fan is communicated with a drying box. A communicating pipe is communicated with the bottom end of the drying box. One end of the communicating pipe is communicated with a heating plate. Air outlet nozzles are equidistantly communicated with the top of the heating plate.

[0009] As a further improvement of the above solution, a support block is installed on the bottom plate of the motor. The left side of the support block is fixedly connected to the right side of the right mounting plate to ensure the normal operation of the motor.

[0010] As a further improvement of the above solution, cylindrical grooves for the collars to rotate are equidistantly opened at the top and bottom of the placement groove plate to facilitate the rotation of the collars.

[0011] As a further improvement of the above solution, a threaded groove is opened on the right side of the hollow plate. The threaded rod is threadedly connected in the threaded groove to facilitate the rotation of the threaded rod.

[0012] As a further improvement of the above solution, heating strips are equidistantly installed inside the heating plate to provide heat for the device.

[0013] As a further improvement of the above solution, the material receiving box is a mesh box. A handle is installed on the front of the material receiving box to facilitate the hot air to pass through and the handle is convenient for taking out the material receiving box.

[0014] As a further improvement of the above solution, two sliding plates are slidably connected to the bottom of the material receiving box. One side of the sliding plate is fixedly connected to one side of the mounting plate to facilitate the movement of the material receiving box.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] 1. By providing a placement component and a gas supply component, the present utility model first places the graphite negative electrode sheet in the placement groove plate, and then rotates the threaded rod, causing the toothed plate to move. The toothed plate drives the driving gear and the transmission gear to rotate, so that gear A drives gear B to rotate. At the same time, the transmission gear drives the gear B on the left to rotate, so that all the left turning rods and right turning rods rotate together, and the rotation directions of the left turning rod and the right turning rod are opposite, thus completing the limit fixation of the graphite negative electrode sheet. Then, the motor is started to make the placement groove plate rotate in the vertical direction, so that the graphite negative electrode sheet can be evenly dried during the rotation process, and at the same time, the liquid generated during the drying process is thrown out, improving the drying effect and discharging effect of the graphite negative electrode sheet.

[0017] 2. By providing a gas supply component, the present utility model provides hot air to the surface of the graphite negative electrode sheet to dry the surface of the graphite negative electrode sheet. At the same time, under the action of the circulation fan, the air suction hood absorbs the hot air floating above. Under the action of the drying box, the moisture in the absorbed hot air is absorbed, and then sprayed onto the surface of the graphite negative electrode sheet through the air outlet nozzles on the heating plate, so that the hot air is recycled and resources are saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the overall structural schematic diagram of the present utility model;

[0019] Figure 2 is the structural schematic diagram of the left turning rod, placement groove plate and hollow plate of the present utility model;

[0020] Figure 3 is the structural schematic diagram of the driven gear, collar and limit block of the present utility model.

[0021] MAIN SYMBOL DESCRIPTION:

[0022] 1. Mounting plate; 2. Material receiving box; 3. Placement groove plate; 4. Hollow plate; 5. Link rod; 6. Motor; 7. Left turning rod; 8. Right turning rod; 9. Collar; 10. Limit block; 11. Gear A; 12. Gear B; 13. Driving gear; 14. Toothed plate; 15. Threaded rod; 16. Driven gear; 17. Circulation fan; 18. Air suction hood; 19. Drying box; 20. Heating plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, in combination with the drawings and specific embodiments, the present utility model will be further described. It should be noted that, on the premise of no conflict, the following described embodiments or technical features can be combined arbitrarily to form new embodiments.

[0024] Embodiment:

[0025] Please combineFigures 1 - 3 A drying device for a graphite negative electrode sheet of the present embodiment comprises two mounting plates 1, a placing assembly and a material receiving box 2 are installed between the two mounting plates 1, the material receiving box 2 is a mesh box, a handle is installed on the front of the material receiving box 2 to facilitate the passage of hot air, and the handle is convenient for taking out the material receiving box 2, the bottom of the material receiving box 2 is slidably connected to two sliding plates, one side of the sliding plate is fixedly connected to one side of the mounting plate 1, to facilitate the movement of the material receiving box 2, and an air supply assembly is installed on the left side of the left mounting plate 1.

[0026] After the placement component is used to fix the graphite negative electrode sheet, it is rotated with the graphite negative electrode sheet. The placement component includes a placement slot plate 3. The surface of the placement slot plate 3 is evenly spaced with through slots to facilitate the placement of the graphite negative electrode sheet. The front and back sides of the placement slot plate 3 are fixedly connected with hollow plates 4. Both sides of the placement slot plate 3 are fixedly connected with connecting rods 5. Both ends of the connecting rods 5 are rotatably connected to the inner wall of the hollow plate 4. The left end of the left connecting rod 5 is rotatably connected to the right side of the left mounting plate 1. The right end of the right connecting rod 5 passes through the right mounting plate 1 and is fixedly connected to the motor 6. The bottom plate of the motor 6 is installed with a support block. The left side of the support block is fixedly connected to the right side of the right mounting plate 1 to ensure the normal operation of the motor 6. The top and bottom of the placement slot plate 3 are evenly spaced with left turning rods 7 and right turning rods 8. The surfaces of the left turning rods 7 and the right turning rods 8 are evenly spaced with sleeve rings 9. The top and bottom of the slotted plate 3 are evenly spaced with cylindrical grooves for the rotation of the collar 9, which facilitates the rotation of the collar 9. The surface of the collar 9 is fixedly connected to the limit block 10. The outer side of the left turn rod 7 is sleeved with a gear A11, and the surfaces of the right turn rod 8 are respectively sleeved with gears B12 and driving gears 13. The surface of the gear B12 is meshed with the surface of the gear A11, and the surface of the driving gear 13 is meshed with a toothed plate 14. The right side of the toothed plate 14 is rotatably connected with a threaded rod 15. A threaded groove is provided on the right side of the hollow plate 4, and the threaded rod 15 is threadedly connected in the threaded groove to facilitate the rotation of the threaded rod 15. The surface of the left gear A11 is meshed with a driven gear 16. The two ends of the intermediate shaft of the driven gear 16 are rotatably connected to the inner wall of the hollow plate 4, and the outer side of the intermediate shaft of the driven gear 16 is sleeved with a transmission gear meshing with the surface of the toothed plate 14.

[0027] The air supply assembly is used to transport hot air to the surface of the graphite negative electrode sheet. The air supply assembly includes a circulating fan 17 installed on the right side of the left mounting plate 1. The input end of the circulating fan 17 is connected to an air suction hood 18 through a connecting pipe. The two sides of the air suction hood 18 are respectively fixedly connected to the inner walls of the two mounting plates 1. The output end of the circulating fan 17 is connected to a drying box 19. An activated carbon plate is installed inside the drying box 19 to absorb moisture. The bottom end of the drying box 19 is connected to a connecting pipe, and one end of the connecting pipe is connected to a heating plate 20. Heating strips are installed at equal intervals inside the heating plate 20 to provide heat for the device. The top of the heating plate 20 is connected to air outlet nozzles at equal intervals.

[0028] In the embodiment of the present application, the implementation principle of a drying device for a graphite negative electrode sheet is as follows: First, place the graphite negative electrode sheet inside the placement groove plate 3, then rotate the threaded rod 15 so that the toothed plate 14 moves. The toothed plate 14 drives the driving gear 13 and the transmission gear to rotate, so that the gear A 11 and the driven gear 16 drive the gear B 12 to rotate respectively, so that all the left rotating rods 7 and the right rotating rods 8 rotate together, and the rotation directions of the left rotating rod 7 and the right rotating rod 8 are opposite, thus completing the limit fixation of the graphite negative electrode sheet. Then start the motor 6. The motor 6 makes the placement groove plate 3 rotate in the vertical direction through the connecting rod 5, so that the graphite negative electrode sheet can be evenly dried during the rotation process, and at the same time, the liquid generated during the drying process is thrown out, improving the drying effect and discharging effect of the graphite negative electrode sheet.

[0029] When drying the surface of the graphite negative electrode sheet, the circulating fan 17 sends gas to the heating plate 20, so that the heating plate 20 dries the graphite negative electrode sheet through the air outlet nozzles. At the same time, under the action of the circulating fan 17, the air suction hood 18 absorbs the hot air floating above and transports it to the inside of the drying box 19. Under the action of the drying box 19, the moisture in the absorbed hot air is absorbed, and then sprayed onto the surface of the graphite negative electrode sheet through the air outlet nozzles on the heating plate 20, so that the hot air is recycled and resources are saved.

[0030] After the drying operation is completed, the motor 6 stops the placement groove plate 3 in the horizontal direction, rotates the threaded rod 15 to reset the toothed plate 14, so that the limiting block 10 releases the restriction on the graphite negative electrode sheet, and the graphite negative electrode sheet falls into the inside of the receiving box 2 under the action of gravity, completing the collection of the dried graphite negative electrode sheet.

[0031] The above embodiments are only the preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention fall within the scope of protection required by the present invention.

Claims

1. A drying device for a graphite negative electrode sheet, characterized in that, It includes two mounting plates (1). A placing component and a material receiving box (2) are installed between the two mounting plates (1). An air supply component is installed on the left side of the left mounting plate (1). The placing component includes a placing groove plate (3). Hollow plates (4) are fixedly connected to the front and back of the placing groove plate (3). Connecting rods (5) are fixedly connected to both sides of the placing groove plate (3). Both ends of the connecting rod (5) are rotatably connected to the inner wall of the hollow plate (4). The left end of the left connecting rod (5) is rotatably connected to the right side of the left mounting plate (1). The right end of the right connecting rod (5) penetrates through the right mounting plate (1) and is fixedly connected to a motor (6). Left turning rods (7) and right turning rods (8) are equally spaced and installed at the top and bottom of the placing groove plate (3). Collar rings (9) are equally spaced and sleeved on the surfaces of the left turning rod (7) and the right turning rod (8). A limiting block (10) is fixedly connected to the surface of the collar ring (9). A gear A (11) is sleeved on the outside of the left turning rod (7). Gears B (12) and a driving gear (13) are respectively sleeved on the surface of the right turning rod (8). The surface of the gear B (12) is meshed with the surface of the gear A (11). The surface of the driving gear (13) is meshed with a toothed plate (14). A threaded rod (15) is rotatably connected to the right side of the toothed plate (14). The surface of the left gear A (11) is meshed with a driven gear (16). Both ends of the middle shaft of the driven gear (16) are rotatably connected to the inner wall of the hollow plate (4). A transmission gear meshed with the surface of the toothed plate (14) is sleeved on the outside of the middle shaft of the driven gear (16). The air supply component includes a circulation fan (17) installed on the right side of the left mounting plate (1). The input end of the circulation fan (17) is communicated with a suction hood (18) through a connecting pipe. Both sides of the suction hood (18) are respectively fixedly connected to the inner walls of the two mounting plates (1). The output end of the circulation fan (17) is communicated with a drying box (19). A communicating pipe is communicated with the bottom end of the drying box (19). One end of the communicating pipe is communicated with a heating plate (20). Air outlet nozzles are equally spaced and communicated with the top of the heating plate (20).

2. The drying device for a graphite negative electrode sheet according to claim 1, characterized in that, A support block is installed on the bottom plate of the motor (6). The left side of the support block is fixedly connected to the right side of the right mounting plate (1).

3. The drying device for a graphite negative electrode sheet according to claim 1, characterized in that, Cylindrical grooves for the rotation of the collar ring (9) are equally spaced and opened at the top and bottom of the placing groove plate (3).

4. The drying device for a graphite negative electrode sheet according to claim 1, characterized in that, A threaded groove is opened on the right side of the hollow plate (4). The threaded rod (15) is threadedly connected in the threaded groove.

5. The drying device for a graphite negative electrode sheet according to claim 1, characterized in that, Heating strips are equally spaced and installed inside the heating plate (20).

6. The drying device for a graphite negative electrode sheet according to claim 1, wherein, The material receiving box (2) is a mesh box. A handle is installed on the front of the material receiving box (2).

7. The drying device for a graphite negative electrode sheet according to claim 1, characterized in that, Two sliding plates are slidably connected to the bottom of the material receiving box (2). One side of the sliding plate is fixedly connected to one side of the mounting plate (1).

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