A lithium battery graphite anode material shaping device

Abstract

The present invention discloses a lithium battery graphite negative electrode material shaping device, which includes a shaping groove opened on a shaping box. A gantry is fixedly installed on the shaping box, and two electric telescopic rods are fixedly installed on the gantry. An installation plate is fixedly installed between the lower ends of the two electric telescopic rods, and an installation frame is rotatably connected to the installation plate. A pressing plate is installed at the lower end of the installation frame, a fixing frame is fixedly installed on the pressing plate, and a sliding hole is opened on the fixing frame. The advantages are as follows: This device can complete the leveling treatment of the graphite negative electrode material before shaping it, eliminating the need for manual leveling operations, reducing the labor intensity of the staff, improving the leveling effect at the same time, and during the shaping process, the actual pressure applied by the pressing plate to the graphite negative electrode material can be gradually increased according to the overall extrusion degree of the graphite negative electrode material, avoiding the problem of cracking of the graphite negative electrode material caused by a large initial pressure.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium battery anode material processing, and particularly to a shaping device for lithium battery graphite anode materials. Background Art

[0002] A lithium battery is a primary battery with a lithium metal or lithium alloy as the anode material and a non-aqueous electrolyte solution. With the development of microelectronics technology at the end of the 20th century, the number of miniaturized devices has increased, posing high requirements for power sources. As a result, lithium batteries have entered a large-scale practical stage.

[0003] With the research and development of new materials, spherical graphite has become a replacement product for anode materials used in the production of lithium-ion batteries at home and abroad due to its good electrical conductivity, higher crystallinity, lower cost, and low and flat charge and discharge potential.

[0004] When shaping lithium battery graphite anode materials, in order to reduce the gaps between graphite anode materials and increase the volume density of graphite anode materials, an external pressure is usually applied to the lithium battery graphite anode materials. However, the current shaping device cannot level the graphite anode materials before applying pressure, and it is necessary to manually level the graphite anode materials placed in the shaping device, resulting in high labor intensity and unsatisfactory leveling effect. Therefore, there is an urgent need to design a shaping device for lithium battery graphite anode materials.

[0005] The information disclosed in this background art section is only intended to enhance the overall understanding of the present invention and should not be regarded as an admission or any form of suggestion that this information constitutes prior art already known to those of ordinary skill in the art. Summary of the Invention

[0006] The object of the present invention is to solve the problems existing in the prior art and to provide a shaping device for lithium battery graphite anode materials.

[0007] To achieve the above object, the present invention adopts the following technical solutions:

[0008] A lithium battery graphite anode material shaping device, including a shaping groove opened on the shaping box, a gantry is fixedly installed on the shaping box, and two electric telescopic rods are fixedly installed on the gantry. An installation plate is fixedly installed between the lower ends of the two electric telescopic rods, and an installation frame is rotatably connected to the installation plate. A pressing plate is installed at the lower end of the installation frame. A fixing frame is fixedly installed on the pressing plate. A sliding hole is opened on the fixing frame. A ball screw is slidably connected to the sliding hole. An installation block is fixedly installed at the lower end of the ball screw. A scraping plate is fixedly installed at the lower end of the installation block. The length of the scraping plate is equal to the radius of the pressing plate. The diameter of the pressing plate is equal to the diameter of the shaping groove. A through groove matching with the installation block is opened on the pressing plate. A clamping groove matching with the scraping plate is opened on the side wall of the through groove.

[0009] In the above-mentioned lithium battery graphite anode material shaping device, a driving rod is rotatably connected to the installation plate. A motor is fixedly installed at the upper end of the installation plate, and the output end of the motor is fixedly connected to the driving rod. The lower end of the driving rod is fixedly connected to the installation frame.

[0010] In the above-mentioned lithium battery graphite anode material shaping device, two symmetrically arranged limiting blocks are fixedly installed on the inner wall of the sliding hole. Two limiting grooves are opened on the side wall of the ball screw, and the two limiting grooves are respectively matched with the two limiting blocks.

[0011] In the above-mentioned lithium battery graphite anode material shaping device, an annular groove is opened on the fixing frame, and a connecting ring is rotatably connected to the annular groove. A ball nut is fixedly installed at the upper end of the connecting ring, and the ball nut is threadedly connected to the ball screw.

[0012] In the above-mentioned lithium battery graphite anode material shaping device, two connecting columns are fixedly installed on the pressing plate, and telescopic springs are installed between the two connecting columns and the installation frame. Connecting rods are fixedly installed on the two connecting columns. Two connecting grooves are opened on the installation frame, and the two connecting grooves are respectively matched with the two connecting rods.

[0013] In the above-mentioned lithium battery graphite anode material shaping device, a plurality of clamping blocks are fixedly installed on the side wall of the connecting rod. A plurality of vertical grooves are opened on the side wall of the connecting groove, and each vertical groove is respectively matched with the corresponding clamping block.

[0014] In the above-mentioned lithium battery graphite anode material shaping device, a controller is fixedly installed on the side wall of the shaping box, and the controller is electrically connected to the electric telescopic rod and the motor.

[0015] In the above-mentioned lithium battery graphite anode material shaping device, an observation window is opened on the front side wall of the shaping box, and the observation window communicates with the shaping groove. An explosion-proof glass plate is fixedly installed in the observation window.

[0016] Compared with the existing technology, the advantages of the present invention are as follows:

[0017] 1: Through the cooperation of the scraping plate, mounting frame, driving rod and motor, before shaping the graphite negative electrode material, it can be leveled first, without manual leveling operation, which can reduce the labor intensity of the staff and improve the leveling effect at the same time.

[0018] 2: Through the cooperation of the ball screw, ball nut, card slot and through slot, after leveling, the scraping plate and the mounting block can be jointly stored in the pressing plate, which can ensure the complete sealing of the lower surface of the pressing plate and avoid the problem that the scraping plate and the mounting block protrude outside the pressing plate, resulting in poor shaping effect of the graphite negative electrode material.

[0019] 3: Through the design of the telescopic spring, when the pressing plate shapes the graphite negative electrode material, the actual pressure applied by the pressing plate to the graphite negative electrode material can be gradually increased according to the overall extrusion degree of the graphite negative electrode material, avoiding the problem that the graphite negative electrode material is broken due to too large initial pressure.

[0020] 4: Through the design of the observation window and the explosion-proof glass plate, it is convenient for the staff to directly know the leveling and shaping effects of the graphite negative electrode material in the shaping groove, and it is also convenient to check the positional relationship between the scraping plate and the pressing plate.

[0021] In summary, the device can complete the leveling of the graphite negative electrode material before shaping it, without manual leveling operation, which can reduce the labor intensity of the staff and improve the leveling effect at the same time. During the shaping process, the actual pressure applied by the pressing plate to the graphite negative electrode material can be gradually increased according to the overall extrusion degree of the graphite negative electrode material, avoiding the problem that the graphite negative electrode material is broken due to too large initial pressure. Brief Description of the Drawings

[0022] Figure 1 is a schematic structural diagram of a lithium battery graphite negative electrode material shaping device proposed by the present invention;

[0023] Figure 2 is Figure 1 a cross-sectional view of;

[0024] Figure 3 is Figure 2 an enlarged schematic structural diagram of part A in;

[0025] Figure 4 is Figure 2 an enlarged schematic structural diagram of part B in.

[0026] In the figure: 1 integer box, 2 integer slot, 3 gantry, 4 electric telescopic rod, 5 mounting plate, 6 driving rod, 7 motor, 8 mounting bracket, 9 pressing plate, 10 fixing bracket, 11 sliding hole, 12 ball screw, 13 mounting block, 14 scraping plate, 15 through slot, 16 clamping slot, 17 limiting slot, 18 limiting block, 19 ball nut, 20 annular groove, 21 connecting ring, 22 connecting column, 23 telescopic spring, 24 connecting rod, 25 connecting groove, 26 vertical slot, 27 clamping block, 28 controller, 29 observation window. Detailed implementation mode

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0028] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0029] Refer to Figures 1-4 , a lithium battery graphite anode material shaping device, including an integer slot 2 opened on the integer box 1, a gantry 3 fixedly installed on the integer box 1, and two electric telescopic rods 4 fixedly installed on the gantry 3, and a mounting plate 5 is fixedly installed between the lower ends of the two electric telescopic rods 4;

[0030] It should be noted that:

[0031] The electric telescopic rod 4 is an existing product, and its working principle and specific structure will not be elaborated here. The function of the electric telescopic rod 4 is to drive the mounting plate 5 to move up and down relative to the gantry 3 during work.

[0032] A driving rod 6 is rotatably connected to the mounting plate 5, a motor 7 is fixedly installed at the upper end of the mounting plate 5, and the output end of the motor 7 is fixedly connected to the driving rod 6. The lower end of the driving rod 6 is fixedly connected to the mounting bracket 8. Through the cooperation of the motor 7 and the driving rod 6, the mounting bracket 8 can rotate relative to the mounting plate 5. At the same time, under the action of the driving rod 6, the effective connection between the mounting plate 5 and the mounting bracket 8 can be maintained.

[0033] A pressing flat plate 9 is installed at the lower end of the mounting frame 8. When the electric telescopic rod 4 extends, it can drive the mounting plate 5 to move downward. Subsequently, under the connection action of the mounting frame 8, the pressing flat plate 9 moves downward simultaneously. Then, the graphite negative electrode material placed in the shaping groove 2 can be extruded by the pressing flat plate 9, reducing the gaps between the graphite negative electrode materials and increasing the volume density of the graphite negative electrode materials.

[0034] A fixing frame 10 is fixedly installed on the pressing flat plate 9. A sliding hole 11 is formed in the fixing frame 10. A ball screw 12 is slidably connected to the sliding hole 11. And a mounting block 13 is fixedly installed at the lower end of the ball screw 12. A scraping flat plate 14 is fixedly installed at the lower end of the mounting block 13. When the scraping flat plate 14 is located at the lower end of the pressing flat plate 9 and contacts the upper surface of the graphite negative electrode material, the scraping flat plate 14 can be rotated on the upper surface of the graphite negative electrode material by the operation of the motor 7, so as to keep the upper surface of the graphite negative electrode material flat, without manual leveling, reducing the labor intensity of the staff, and at the same time improving the leveling effect.

[0035] The length of the scraping flat plate 14 is equal to the radius of the pressing flat plate 9, and the diameter of the pressing flat plate 9 is equal to the diameter of the shaping groove 2.

[0036] An annular groove 20 is formed in the fixing frame 10. And a connecting ring 21 is rotatably connected to the annular groove 20. A ball nut 19 is fixedly installed at the upper end of the connecting ring 21. And the ball nut 19 is threadedly connected to the ball screw 12. Through the cooperation of the ball nut 19 and the ball screw 12, the position of the scraping flat plate 14 relative to the pressing flat plate 9 can be adjusted. When it is necessary to first level the graphite negative electrode material with the scraping flat plate 14, rotating the ball nut 19 clockwise can make the ball screw 12 move downward in the sliding hole 11, so that the scraping flat plate 14 moves downward and contacts the upper surface of the graphite negative electrode material. When the leveling is completed, rotating the ball nut 19 counterclockwise can make the scraping flat plate 14 approach the pressing flat plate 9.

[0037] Two symmetrically arranged limiting blocks 18 are fixedly installed on the inner wall of the sliding hole 11. Two limiting grooves 17 are formed on the side wall of the ball screw 12. And the two limiting grooves 17 are respectively matched with the two limiting blocks 18. Through the cooperation of the limiting groove 17 and the limiting block 18, the connection effect between the ball screw 12 and the sliding hole 11 can be ensured, avoiding the problem of their separation. A through groove 15 matched with the mounting block 13 is formed in the pressing flat plate 9. A clamping groove 16 matched with the scraping flat plate 14 is formed on the side wall of the through groove 15. Through the cooperation of the through groove 15 and the clamping groove 16, after the leveling of the graphite negative electrode material is completed, the scraping flat plate 14 and the mounting block 13 can be jointly stored, so as to ensure the complete sealing of the lower surface of the pressing flat plate 9, and at the same time avoid the problem that the scraping flat plate 14 and the mounting block 13 protrude outside the pressing flat plate 9 and cause poor shaping effect on the graphite negative electrode material.

[0038] A controller 28 is fixedly installed on the side wall of the integer box 1, and the controller 28 is electrically connected to both the electric telescopic rod 4 and the motor 7. Through the design of the controller 28, it is convenient to control the working conditions of the motor 7 and multiple electric telescopic rods 4 according to actual needs. The controller 28 can specifically adopt a controller of model KV-16AT, and the motor 7 can adopt a motor that can only rotate in one direction commonly used in daily life.

[0039] An observation window 29 is opened on the front side wall of the integer box 1, and the observation window 29 communicates with the integer slot 2. An explosion-proof glass plate is fixedly installed in the observation window 29. Through the design of the observation window 29 and the explosion-proof glass plate, it is convenient for the staff to directly know the leveling and shaping effects of the graphite negative electrode material in the integer slot 2, and at the same time, it is also convenient to check the positional relationship between the scraping plate 14 and the pressing plate 9.

[0040] Two connecting columns 22 are fixedly installed on the pressing plate 9, and telescopic springs 23 are installed between the two connecting columns 22 and the mounting frame 8. Connecting rods 24 are fixedly installed on both connecting columns 22. Two connecting slots 25 are opened on the mounting frame 8, and the two connecting slots 25 are respectively matched with the two connecting rods 24. Through the design of the telescopic spring 23, when the pressing plate 9 performs integer processing on the graphite negative electrode material, the pressure actually applied by the pressing plate 9 to the graphite negative electrode material can be gradually increased according to the overall extrusion degree of the graphite negative electrode material, avoiding the problem of cracking of the graphite negative electrode material caused by too large initial pressure.

[0041] A plurality of clamping blocks 27 are fixedly installed on the side wall of the connecting rod 24, and a plurality of vertical slots 26 are opened on the side wall of the connecting slot 25, and each vertical slot 26 is respectively matched with the corresponding clamping block 27. Through the cooperation of the clamping block 27 and the vertical slot 26, the moving direction of the connecting rod 24 relative to the connecting slot 25 can be limited, so as to ensure that the pressing plate 9 applies a stable pressure to the graphite negative electrode material. At the same time, the cooperation of the clamping block 27 and the vertical slot 26 can also limit the maximum moving distance of the connecting rod 24 relative to the connecting slot 25, avoiding the problem of their separation.

[0042] In the present invention, the graphite negative electrode material is placed in the integer slot 2, and then the ball nut 19 is rotated clockwise so that the ball screw 12 drives the scraping plate 14 to move downward and is completely located outside the lower end of the pressing plate 9. Then, the electric telescopic rod 4 is operated to drive the lower surface of the scraping plate 14 to contact the graphite negative electrode material. The motor 7 is started to make the scraping plate 14 rotate on the upper end of the graphite negative electrode material to level it. After the leveling process is completed, the ball nut 19 is rotated counterclockwise so that the scraping plate 14 and the mounting block 13 are completely located in the pressing plate 9 to keep the lower surface of the pressing plate 9 completely sealed. Then, the electric telescopic rod 4 can be operated again to make the pressing plate 9 move downward to apply pressure to the graphite negative electrode material, and the pressure size is gradually increased over time to ensure the integer effect on the graphite negative electrode material.

[0043] Further explanation: For the above fixed connection, unless otherwise clearly specified and defined, it should be understood in a broad sense. For example, it can be welding, gluing, or integrally formed setting, etc., which are common means well-known to those skilled in the art.

[0044] As mentioned above, it is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent replacements or changes, and should be covered by the protection scope of the present invention.

Claims

1. An integer shaping device for a graphite negative electrode material of a lithium battery, including an integer shaping groove (2) opened on an integer shaping box (1), characterized in that, A gantry (3) is fixedly installed on the integer box (1), and two electric telescopic rods (4) are fixedly installed on the gantry (3). An installation plate (5) is fixedly installed between the lower ends of the two electric telescopic rods (4), and an installation frame (8) is rotatably connected to the installation plate (5). A pressing plate (9) is installed at the lower end of the installation frame (8). A fixing frame (10) is fixedly installed on the pressing plate (9). A sliding hole (11) is formed in the fixing frame (10). A ball screw (12) is slidably connected to the sliding hole (11). An installation block (13) is fixedly installed at the lower end of the ball screw (12). A scraping plate (14) is fixedly installed at the lower end of the installation block (13). The length of the scraping plate (14) is equal to the radius of the pressing plate (9). The diameter of the pressing plate (9) is equal to the diameter of the integeration groove (2). A through groove (15) matching with the installation block (13) is formed in the pressing plate (9). A clamping groove (16) matching with the scraping plate (14) is formed in the side wall of the through groove (15). An annular groove (20) is formed in the fixing frame (10). A connecting ring (21) is rotatably connected to the annular groove (20). A ball nut (19) is fixedly installed at the upper end of the connecting ring (21). The ball nut (19) is threadedly connected to the ball screw (12). Through the cooperation of the ball nut (19) and the ball screw (12), the position of the scraping plate (14) relative to the pressing plate (9) is adjusted.

2. The shaping device for the graphite anode material of a lithium battery according to claim 1, characterized in that, A driving rod (6) is rotatably connected to the installation plate (5). A motor (7) is fixedly installed at the upper end of the installation plate (5). The output end of the motor (7) is fixedly connected to the driving rod (6). The lower end of the driving rod (6) is fixedly connected to the installation frame (8).

3. An integer shaping device for a graphite anode material of a lithium battery according to claim 1, characterized in that, Two symmetrically arranged limiting blocks (18) are fixedly installed on the inner wall of the sliding hole (11). Two limiting grooves (17) are formed in the side wall of the ball screw (12). The two limiting grooves (17) are respectively matched with the two limiting blocks (18).

4. The shaping device for the graphite anode material of a lithium battery according to claim 1, characterized in that Two connecting columns (22) are fixedly installed on the pressing plate (9). A telescopic spring (23) is installed between each of the two connecting columns (22) and the installation frame (8). Connecting rods (24) are fixedly installed on the two connecting columns (22). Two connecting grooves (25) are formed in the installation frame (8). The two connecting grooves (25) are respectively matched with the two connecting rods (24).

5. An integer shaping device for a graphite anode material of a lithium battery according to claim 4, characterized in that, A plurality of clamping blocks (27) are fixedly installed on the side wall of the connecting rod (24). A plurality of vertical grooves (26) are formed in the side wall of the connecting groove (25). Each vertical groove (26) is respectively matched with the corresponding clamping block (27).

6. The shaping device for the graphite anode material of a lithium battery according to claim 2, wherein, A controller (28) is fixedly installed on the side wall of the integer box (1). The controller (28) is electrically connected to the electric telescopic rod (4) and the motor (7).

7. An integer shaping device for a graphite anode material of a lithium battery according to claim 1, characterized in that, An observation window (29) is formed in the front side wall of the integer box (1). The observation window (29) communicates with the integeration groove (2). An explosion-proof glass plate is fixedly installed in the observation window (29).

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