Tabletting device of negative plate for sodium ion battery production

Abstract

The utility model discloses a negative plate pressing device for sodium ion battery production, which comprises an operation table, the top surface of the operation table is movably connected with a pressing piece, a plurality of pressing grooves vertically penetrate through the top surface of the operation table, a bearing plate is movably connected in each pressing groove, the front side of the operation table is provided with a plurality of accommodating grooves communicated with the pressing grooves, and the accommodating grooves are communicated with the pressing grooves. The bearing plates are jointly connected with a driving part, and the driving part movably penetrates through the containing groove and is in transmission connection with the tablet pressing part. The driving piece connected with the bearing plates is arranged on the side face of the operation table, and the driving piece is in transmission connection with the piece pressing piece, so that after the negative pole piece is pressed by the equipment, the bearing plates are driven by the driving piece to be automatically opened during lifting, the bearing plates do not need to be manually opened, and the working efficiency is improved. And meanwhile, after the negative plates on the top surface of the bearing plate are discharged, the bearing plate automatically returns, so that the automation of the equipment is improved, and the workload of operators is reduced.

Description

Technical Field

[0001] This utility model relates to the field of sodium-ion battery production technology, and in particular to a pressing device for negative electrode sheets used in sodium-ion battery production. Background Technology

[0002] Sodium-ion batteries are a type of rechargeable battery that primarily functions by the movement of sodium ions between the positive and negative electrodes, similar in principle to lithium-ion batteries. The production process of sodium-ion batteries involves pressing the positive and negative electrode sheets together.

[0003] Patent publication number CN220760829U discloses a pressing device for positive and negative electrode sheets in sodium-ion battery production, belonging to the field of sodium-ion battery production technology. It includes a mold base with three pressing slots evenly spaced on it, connecting the upper and lower ends of the mold base. A second mounting plate is installed at the front end of the mold base. A demolding device is movably mounted on the mold base and the second mounting plate. The demolding device consists of a base plate, a first rod, a support plate, a second rod, a spring, and a pull block. There are three first rods evenly installed at the rear end of the base plate, and three support plates are installed at the rear ends of the three first rods respectively. The second rod is installed at the front end of the base plate, the spring is sleeved on the second rod, and the pull block is installed at the front end of the second rod. The presence of the demolding device, combined with the pressing slots connecting the upper and lower ends of the mold base, reduces the number of pressing steps in the battery production process, simplifying the pressing process and thus increasing the efficiency of battery pressing production.

[0004] The patent requires manual pulling of a pull block during the production of negative electrode sheets. The pull block substrate and rod number one pull the support plate out so that the pressed negative electrode sheets can be unloaded from the pressing groove. This makes the equipment less automated in the production of negative electrode sheets and increases the workload of the operators. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a pressing device for negative electrode sheets used in the production of sodium-ion batteries.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a pressing device for negative electrode sheets used in sodium-ion battery production, comprising an operating table, a support leg vertically fixed to the bottom surface of the operating table, a pressing component movably connected to the top surface of the operating table, multiple pressing slots vertically penetrating the top surface of the operating table, a bearing plate movably connected to each pressing slot, a pair of receiving slots communicating with the pressing slots on the front side of the operating table, and a driving component connected to the multiple bearing plates, the driving component moving through the receiving slots and being drivenly connected to the pressing component.

[0007] As a further description of the above technical solution: the tablet pressing component includes a top plate that is lifted and connected to the top surface of the operating table. A cylinder is vertically fixed at each of the four corners of the bottom surface of the top plate. Each cylinder is vertically fixed to the top surface of the operating table. Multiple pressing blocks are vertically fixed to the bottom surface of the top plate. A toothed plate II is vertically fixed to each side of the top plate. Both toothed plates II are connected to the driving component for transmission.

[0008] As a further description of the above technical solution: the driving component includes two toothed plates that are horizontally and movably connected to both sides of the operating table. The top surface of each toothed plate is provided with a long gear, which is rotatably connected to the side of the operating table. The ends of the two toothed plates are jointly fixed to a support plate. Multiple support rods are horizontally fixed to the inner side of the support plate. The support rods movably pass through the storage groove. Each end of each bearing plate is fixed with one support rod. Each side of each toothed plate has a through groove, and a reset component is provided in the through groove. The reset component is connected to the long gear in a transmission connection.

[0009] As a further description of the above technical solution: the reset component includes a U-shaped plate fixedly connected in the through groove, a rotating shaft rotatably connected inside the U-shaped plate, a short gear fixedly sleeved on the outer edge of the rotating shaft, the tooth end of the short gear extending out of the through groove and flush with the tooth on the toothed plate, the short gear meshing with the long gear, a ratchet fixedly sleeved on the outer edge of the rotating shaft, the ratchet engaging a pawl on the outside, and the pawl movably connected inside the U-shaped plate.

[0010] As a further description of the above technical solution: a sliding groove is horizontally opened on the side of the operating table, a slider is slidably connected in the sliding groove, the slider is fixedly connected to the toothed plate, a spring is fixed between the slider and the sliding groove, and an avoidance groove is opened in each of the pressing slots, the avoidance grooves are adapted to the bearing plate.

[0011] As a further description of the above technical solution: an arc-shaped groove is formed in the U-shaped plate, an arc-shaped block is movably connected in the arc-shaped groove, the arc-shaped block is fixedly connected to the pawl, and a spring is fixed together between the arc-shaped groove and the arc-shaped block.

[0012] As a further description of the above technical solution: the starting end of the tooth of the first tooth plate is located on the rear side of the through groove, and the first tooth plate and the second tooth plate are not on the same plane.

[0013] This utility model has the following beneficial effects:

[0014] Compared with existing technologies, this sodium-ion battery negative electrode sheet pressing device has a drive unit connected to multiple support plates on the side of the operating table. The drive unit is connected to the pressing unit, so that after the negative electrode sheet is pressed, the device is lifted up and the support plates are automatically opened by the drive unit. This allows the negative electrode sheet to leave the support plates and be unloaded from below the pressing slot without the need to manually open the support plates. After the negative electrode sheet is unloaded from the top of the support plate, the support plate automatically returns to its original position, thereby improving the automation of the equipment and reducing the workload of the operators. Attached Figure Description

[0015] Figure 1 This is a three-dimensional view of the overall structure of a pressing device for negative electrode sheets used in the production of sodium-ion batteries, as proposed in this utility model.

[0016] Figure 2 This is a side sectional view of the overall structure of a pressing device for negative electrode sheets used in the production of sodium-ion batteries, as proposed in this utility model.

[0017] Figure 3 This is a top sectional view showing the connection between the toothed plate and the operating table of a pressing device for negative electrode sheets used in the production of sodium-ion batteries, as proposed in this utility model.

[0018] Figure 4 This is a front sectional view of the toothed plate and the long gear of the pressing device for negative electrode sheet production of sodium-ion battery proposed in this utility model.

[0019] Figure 5 This is a side sectional view of the connection between the toothed plate and the long gear in the pressing device for negative electrode sheets used in the production of sodium-ion batteries according to this utility model.

[0020] Figure 6 This is a side sectional view of the connection between the ratchet and the toothed plate in a pressing device for negative electrode sheets used in the production of sodium-ion batteries, as proposed in this utility model.

[0021] Figure 7 This utility model proposes a pressing device for negative electrode sheets used in the production of sodium-ion batteries. Figure 6 Enlarged view of the structure at point A in the middle.

[0022] Legend:

[0023] 1. Operating table; 2. Support plate; 3. Support leg; 4. Storage slot; 5. Support rod; 6. Tooth plate one; 7. Tooth plate two; 8. Long gear; 9. Cylinder; 10. Pressure block; 11. Top plate; 12. Pressure plate groove; 13. Bearing plate; 14. Clearance groove; 15. Spring one; 16. Slider; 17. Slide groove; 18. Short gear; 19. Through groove; 20. Ratchet; 21. Pawl; 22. Spring two; 23. Arc groove; 100. U-shaped plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Reference Figures 1 to 7 This utility model provides a pressing device for negative electrode sheets used in the production of sodium-ion batteries: it includes an operating table 1, a support leg 3 vertically fixed to the bottom surface of the operating table 1, a pressing component movably connected to the top surface of the operating table 1, multiple pressing slots 12 vertically penetrating the top surface of the operating table 1, a bearing plate 13 movably connected in each pressing slot 12, a pair of storage slots 4 communicating with the pressing slots 12 on the front side of the operating table 1, multiple bearing plates 13 connected to a driving component, the driving component movably passing through the storage slots 4 and being drivenly connected to the pressing component, the pressing component includes a top plate 11 that is lifted and connected to the top surface of the operating table 1, a cylinder 9 vertically fixed at each of the four corners of the bottom surface of the top surface, each cylinder 9 being vertically fixed to the top surface of the operating table 1, multiple pressing blocks 10 vertically fixed to the bottom surface of the top plate 11, and a toothed plate 7 vertically fixed on each side of the top plate 11, both toothed plates 7 being drivenly connected to the driving component;

[0026] The driving component includes two toothed plates 6 horizontally movably connected to both sides of the operating table 1. A slide groove 17 is horizontally opened on the side of the operating table 1. A slider 16 is slidably connected in the slide groove 17. The slider 16 is fixedly connected to the toothed plate 6. A spring 15 is fixed between the slider 16 and the slide groove 17. A clearance groove 14 is opened in each pressing groove 12. The clearance groove 14 is adapted to the bearing plate 13. A long gear 8 is provided on the top surface of the toothed plate 6. The long gear 8 is rotatably connected to the side of the operating table 1. A support plate 2 is fixed at the ends of the two toothed plates 6. Multiple support rods 5 are horizontally fixed on the inner side of the support plate 2. The support rods 5 move through the storage groove 4. A support rod 5 is fixed at the end of each bearing plate 13. A through groove 19 is passed through the side of each toothed plate 6. A reset component is provided in the through groove 19. The reset component is connected to the long gear 8 in a transmission.

[0027] The reset component includes a U-shaped plate 100 fixedly connected in the through groove 19, a rotating shaft rotatably connected inside the U-shaped plate, a short gear 18 fixedly sleeved on the outer edge of the rotating shaft, the tooth end of the short gear 18 extending out of the through groove 19 and flush with the teeth on the toothed plate 6, the short gear 18 meshing with the long gear 8, a ratchet 20 fixedly sleeved on the outer edge of the rotating shaft, the ratchet 20 meshing with the pawl 21 on the outside, the pawl 21 movably connected in the through groove 19, an arc-shaped groove 23 opened in the U-shaped plate 100, an arc-shaped block movably connected in the arc-shaped groove 23, the arc-shaped block fixedly connected to the pawl 21, a spring 22 fixed together between the arc-shaped groove 23 and the arc-shaped block, the starting end of the teeth of the toothed plate 6 located on the rear side of the through groove 19, and the toothed plate 6 and the toothed plate 7 not on the same plane.

[0028] By setting a drive unit connected to multiple support plates 13 on the side of the operating table 1 and connecting the drive unit to the pressing unit, the equipment can automatically open the support plate 13 when it is lifted after pressing the negative electrode sheet, so that the negative electrode sheet leaves the support plate 13 and is unloaded from below the pressing groove 12 without having to manually open the support plate 13. At the same time, after the negative electrode sheet is unloaded from the top surface of the support plate 13, the support plate 13 automatically returns to its original position, thereby improving the automation of the equipment and reducing the workload of the operator.

[0029] Working principle: During use, cylinder 9 drives top plate 11 to descend, top plate 11 drives pressure block 10 to press the negative electrode in pressure groove 12. At the same time, top plate 11 drives toothed plate 7 to descend, so that toothed plate 7 meshes with long gear 8. After toothed plate 7 meshes with long gear 8, when toothed plate 7 descends, it drives long gear 8 to rotate counterclockwise. At the same time, long gear 8 drives short gear 18 to rotate, short gear 18 drives ratchet 20 to rotate. When ratchet 20 rotates, it drives pawl 21, which meshes with ratchet 20, to swing upwards and back and forth. At the same time, arc block reciprocates in arc groove 23. The movement causes the second spring 22 to continuously compress and reset. At this time, the first toothed plate 6 and the long gear 8 are in a non-meshing state, and the first toothed plate 6 is in a stationary state. After the pressure block 10 finishes pressing the negative electrode sheet in the pressing groove 12, the cylinder 9 will drive the top plate 11 to rise. When the top plate 11 rises, it drives the pressure block 10 to rise, and the pressure block 10 drives the second toothed plate 7 to rise. The second toothed plate 7 drives the long gear 8 to rotate clockwise. At this time, the ratchet 20 in the through groove 19 is locked under the limit of the pawl 21, so that the short gear 18 cannot rotate. The long gear 8, through the short gear 18, pushes the short gear 18 towards... The front side of the operating table 1 is moved, causing the short gear 18 to drive the toothed plate 6 to move towards the front of the operating table 1. At the same time, the spring 15 is compressed, causing the long gear 8 to mesh with the teeth on the toothed plate 6. At this time, the long gear 8 drives the toothed plate 6 to continue moving towards the front of the operating table 1. The toothed plate 6 moves the support rod 5 towards the outside of the receiving groove 4 through the support plate 2. The support rod 5 moves the bearing plate 13 towards the outside of the receiving groove 4, causing the bearing plate 13 to separate from the negative electrode sheet. The negative electrode sheet detaches from the bottom of the pressing groove. After the electrode sheet leaves the pressing groove, the pressing block 10 will rise to the initial position. After positioning and stopping, the toothed plate 7 separates from the long gear 8, and the spring 15, which is in a compressed state, resets. When the spring 15 resets, it moves the toothed plate 6 towards the rear of the operating table 1 via the slider 16. The toothed plate 6 drives the support plate 2 to move towards the rear of the operating table 1. The support plate 2 drives the support rod 5 to push the bearing plate 13 back into the pressing groove 12. When the bearing plate 13 returns to the pressing groove 12, the long gear 8 separates from the gear on the toothed plate 6 and re-meets with the short gear 18 in the through groove 19, thus completing the automatic opening and closing of the bearing plate 13 when pressing the negative electrode sheet.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pressing device for negative electrode sheets used in the production of sodium-ion batteries, comprising an operating table (1), wherein a support leg (3) is vertically fixed to the bottom surface of the operating table (1), characterized in that: The top surface of the operating table (1) is movably connected to the tablet pressing component. The top surface of the operating table (1) vertically penetrates multiple tablet pressing slots (12). Each tablet pressing slot (12) is movably connected to a support plate (13). The front side of the operating table (1) has a pair of storage slots (4) that communicate with the tablet pressing slots (12). The multiple support plates (13) are connected to a driving component. The driving component moves through the storage slots (4) and is connected to the tablet pressing component in a transmission connection.

2. The pressing device for negative electrode sheets used in sodium-ion battery production according to claim 1, characterized in that: The pressing component includes a top plate (11) that is lifted and connected to the top surface of the operating table (1). A cylinder (9) is vertically fixed at each of the four corners of the bottom surface of the top plate. Each cylinder (9) is vertically fixed to the top surface of the operating table (1). Multiple pressing blocks (10) are vertically fixed to the bottom surface of the top plate (11). A toothed plate (7) is vertically fixed to each side of the top plate (11). Both toothed plates (7) are connected to the driving component for transmission.

3. The pressing device for negative electrode sheets used in sodium-ion battery production according to claim 2, characterized in that: The driving component includes two horizontally movably connected toothed plates (6) on both sides of the operating table (1). The top surface of the toothed plates (6) is provided with a long gear (8). The long gear (8) is rotatably connected to the side of the operating table (1). The ends of the two toothed plates (6) are jointly fixed with a support plate (2). Multiple support rods (5) are horizontally fixed on the inner side of the support plate (2). The support rods (5) move through the storage groove (4). Each end of each bearing plate (13) is fixed with a support rod (5). Each side of each toothed plate (6) has a through groove (19). A reset component is provided in the through groove (19). The reset component is connected to the long gear (8) in a transmission.

4. The pressing device for negative electrode sheets used in sodium-ion battery production according to claim 3, characterized in that: The reset component includes a U-shaped plate (100) fixedly connected in the through groove (19), a rotating shaft rotatably connected in the U-shaped plate (10), a short gear (18) fixedly sleeved on the outer edge of the rotating shaft, the tooth end of the short gear (18) protruding from the through groove (19) and flush with the teeth on the toothed plate (6), the short gear (18) meshing with the long gear (8), a ratchet (20) fixedly sleeved on the outer edge of the rotating shaft, the ratchet (20) meshing with a pawl (21), and the pawl (21) movably connected in the U-shaped plate (10).

5. A pressing device for negative electrode sheets used in sodium-ion battery production according to claim 3, characterized in that: A sliding groove (17) is horizontally opened on the side of the operating table (1). A slider (16) is slidably connected in the sliding groove (17). The slider (16) is fixedly connected to the toothed plate (6). A spring (15) is fixed between the slider (16) and the sliding groove (17). A clearance groove (14) is opened in each of the pressing grooves (12). The clearance groove (14) is adapted to the bearing plate (13).

6. The pressing device for a negative electrode sheet used in the production of sodium-ion batteries according to claim 4, characterized in that: An arc-shaped groove (23) is opened in the U-shaped plate (100), and an arc-shaped block is movably connected in the arc-shaped groove (23). The arc-shaped block is fixedly connected to the pawl (21), and a spring (22) is fixed between the arc-shaped groove (23) and the arc-shaped block.

7. A pressing device for negative electrode sheets used in sodium-ion battery production according to claim 3, characterized in that: The starting end of the tooth of the first tooth plate (6) is located on the rear side of the through groove (19), and the first tooth plate (6) and the second tooth plate (7) are not on the same plane.

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