Graphite pulverizing device for lithium battery manufacturing

Abstract

The utility model discloses a graphite crushing device for lithium battery manufacturing relates to lithium battery manufacturing technical field, including the crushing box, the circulation back material subassembly and the grinding assembly, the upper side of crushing box is installed with the upper cover, and the lower side of crushing box one side is connected with the discharge pipe, the middle part of upper cover is installed with the crushed material subassembly, the inside lower side of crushing box is installed with the circulation back material subassembly, and the circulation back material subassembly includes back material cylinder, inlet, lower motor, rotating rod and spiral feed vane, the lower side outer wall of back material cylinder is set up with four inlets, and back material cylinder's bottom is installed with lower motor, the inside rotation of back material cylinder is installed with rotating rod, and the outside of rotating rod is fixed with spiral feed vane, the inside middle lower of crushing box is provided with the grinding assembly, and the grinding assembly is located the outside of back material cylinder. This graphite crushing device for lithium battery manufacturing, circulation back material subassembly can with back material cylinder below graphite circulation return to its upper side and repeat grinding, improve the crushing degree.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery manufacturing technology, specifically to a graphite crushing device for lithium battery manufacturing. Background Technology

[0002] Lithium batteries are batteries that use lithium metal or lithium alloy as the anode material and a non-aqueous electrolyte solution. The commonly used anode material for lithium batteries, such as silicon alloys, is graphite. Graphite is the most stable form of carbon. In the manufacturing process of lithium batteries, graphite needs to be processed, so graphite crushing equipment is required.

[0003] For example, the utility model application with application number 202421434040.2 discloses a graphite electrode crushing device. The graphite crushing device similar to the above application still has the following shortcomings: although it can crush graphite, there may be some graphite that is not crushed sufficiently, it is not convenient to circulate and crush graphite material, and the crushing effect is relatively poor. Utility Model Content

[0004] The purpose of this invention is to provide a graphite crushing device for lithium battery manufacturing, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a graphite crushing device for lithium battery manufacturing, comprising a crushing box, a recycling assembly, and a grinding assembly. A top cover is installed on the upper side of the crushing box, and a discharge pipe is connected to one side of the lower side of the crushing box. A crushing assembly is installed in the middle of the top cover. A recycling assembly is installed on the lower inner side of the crushing box, and the recycling assembly includes a return cylinder, an inlet, a lower motor, a rotating rod, and a spiral feeding blade. Four inlets are opened on the lower outer wall of the return cylinder, and a lower motor is installed at the bottom of the return cylinder. A rotating rod is rotatably installed inside the return cylinder, and a spiral feeding blade is fixed to the outer side of the rotating rod. A grinding assembly is arranged in the lower middle part of the crushing box, and the grinding assembly is located outside the return cylinder. The grinding assembly includes a fixed grinding plate and a moving grinding plate, both of which are annular in shape. The fixed grinding plate is fixedly connected to the inner wall of the crushing box, and a moving grinding plate is arranged on the upper side of the fixed grinding plate.

[0006] Furthermore, feeding components are installed on both sides of the upper cover plate, and the feeding components include feeding hoppers. The feeding hoppers are embedded and fixed on both sides of the upper cover plate, and both the upper and lower sides of the feeding hoppers are open structures.

[0007] Furthermore, the feeding assembly also includes a crushing roller and a rotating motor. Two crushing rollers are rotatably arranged inside the feeding hopper, and a rotating motor is installed at one end of the outer side of the crushing roller.

[0008] Furthermore, the crushing assembly includes an upper motor and a rotating shaft. The upper motor is installed on the upper side of the middle part of the upper cover plate, and a rotating shaft penetrating the upper cover plate is provided on the lower side of the upper motor.

[0009] Furthermore, the crushing assembly also includes connecting rods and crushing blades. Four sets of connecting rods are connected to the outside of the rotating shaft, and the connecting rods are located outside the return cylinder. The outer wall of the connecting rods is fixed with crushing blades.

[0010] Furthermore, the grinding assembly also includes an upper groove, grinding teeth, a lower groove, and a filter screen. The moving grinding plate and the fixed grinding plate are respectively provided with an upper groove and a lower groove, and a filter screen is fixed inside the lower groove. Grinding teeth are fixed on the lower side wall of the moving grinding plate and the upper side wall of the fixed grinding plate.

[0011] Furthermore, the grinding assembly also includes an outer protective frame, a rotating ring, and a passive toothed ring. The outer protective frame is fixed to the upper side of the fixed grinding plate, and the outer protective frame is rotatably connected to the moving grinding plate. The rotating ring is fixed to the middle of the moving grinding plate, and the passive toothed ring is fixed to the outer wall of the middle part of the rotating ring.

[0012] Furthermore, the grinding assembly also includes an active gear ring, a drive motor, and a scraper. The passive gear ring is engaged with the active gear ring on one side, and the drive motor is installed on the lower side of the active gear ring. The lower side of the rotating ring is rotatably connected to the fixed grinding plate, and the bottom of the rotating ring is connected to a scraper with an "L" shaped structure.

[0013] This utility model provides a graphite pulverizing device for lithium battery manufacturing, which has the following beneficial effects:

[0014] This utility model is equipped with a recycling and return component. The inlet allows graphite from the bottom of the crushing chamber to enter the return cylinder. The lower motor facilitates the rotation of the rotating rod and the spiral feeder. The upper side of the return cylinder has an open structure, which allows the spiral feeder to feed the graphite in the return cylinder upwards and allow this part of the graphite to exit through the upper opening of the return cylinder. This circulates the graphite from the bottom of the return cylinder back to its upper side for repeated grinding, thereby improving the degree of crushing.

[0015] This utility model is equipped with a grinding assembly. The outer protective frame is used to protect the passive gear ring and the active gear ring. The drive motor facilitates the rotation of the active gear ring. The active gear ring and the passive gear ring are meshed, which can drive the rotation of the passive gear ring, the rotating ring, and the moving grinding plate. The material can enter between the moving grinding plate and the fixed grinding plate through the upper slot of the moving grinding plate. The grinding teeth between the two can improve the grinding efficiency. The ground graphite can be discharged through the lower slot and the filter screen. The rotating ring can drive the scraper to rotate synchronously. The scraper is designed to facilitate the discharge of material through the discharge pipe.

[0016] This utility model is equipped with a feeding assembly and a crushing assembly. The rotating motor facilitates the rotation of the crushing rollers. The two crushing rollers rotate in opposite directions to perform preliminary crushing of the graphite entering the feeding hopper. The pre-crushed graphite can fall into the crushing chamber. The upper motor and rotating shaft facilitate the rotation of the connecting rod and the crushing blade. The connecting rod is located outside the return cylinder and does not affect the use of the circulating return assembly. The rotation of the crushing blade can cut and crush the graphite on the upper side of the crushing chamber. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the internal exploded structure of a graphite pulverizing device for lithium battery manufacturing according to this utility model;

[0018] Figure 2 This is a schematic diagram of the internal half-section structure of a graphite crushing device for lithium battery manufacturing according to the present invention.

[0019] Figure 3 This is a schematic diagram of the grinding component structure of a graphite crushing device for lithium battery manufacturing according to this utility model;

[0020] Figure 4 This is a schematic diagram of the external three-dimensional structure of a graphite crushing device for lithium battery manufacturing according to this utility model.

[0021] In the diagram: 1. Crushing box; 2. Top cover plate; 3. Feeding assembly; 301. Feed hopper; 302. Crushing roller; 303. Rotating motor; 4. Crushing assembly; 401. Upper motor; 402. Rotating shaft; 403. Connecting rod; 404. Crushing blade; 5. Circulating return assembly; 501. Return cylinder; 502. Feed inlet; 503. Lower motor; 504. Rotating rod; 505. Spiral feeder blade; 6. Discharge pipe; 7. Grinding assembly; 701. Fixed grinding plate; 702. Moving grinding plate; 703. Upper slot; 704. Grinding teeth; 705. Lower slot; 706. Filter screen; 707. Outer protective frame; 708. Rotating ring; 709. Passive gear ring; 710. Active gear ring; 711. Drive motor; 712. Scraper. Detailed Implementation

[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0023] like Figures 1-2As shown, a graphite crushing device for lithium battery manufacturing includes a crushing box 1, a recycling assembly 5, and a grinding assembly 7. A top cover 2 is installed on the upper side of the crushing box 1, and a discharge pipe 6 is connected to one side of the lower side of the crushing box 1. Feeding assemblies 3 are installed on both sides of the top cover 2, and each feeding assembly 3 includes a feeding hopper 301. The feeding hopper 301 is embedded and fixed to both sides of the top cover 2, and both the upper and lower sides of the feeding hopper 301 are open structures. The feeding assembly 3 also includes crushing rollers 302 and a rotating motor 303. Two crushing rollers 302 are rotatably arranged inside the feeding hopper 301, and a rotating motor 303 is installed at one outer end of each crushing roller 302. The rotating motor 303 facilitates the rotation of the crushing rollers 302. The two crushing rollers 302 rotate in opposite directions, which can initially crush the graphite entering the feeding hopper 301. The initially crushed graphite can fall into the crushing box 1.

[0024] like Figure 2 and Figure 4 As shown, a crushing assembly 4 is installed in the middle of the upper cover plate 2. The crushing assembly 4 includes an upper motor 401 and a rotating shaft 402. The upper motor 401 is installed on the upper side of the middle of the upper cover plate 2, and the rotating shaft 402 is provided on the lower side of the upper motor 401, which passes through the upper cover plate 2. The crushing assembly 4 also includes a connecting rod 403 and a crushing blade 404. Four sets of connecting rods 403 are connected to the outside of the rotating shaft 402, and the connecting rods 403 are located on the outside of the return cylinder 501. The crushing blade 404 is fixed on the outer wall of the connecting rod 403. The upper motor 401 and the rotating shaft 402 facilitate the rotation of the connecting rods 403 and the crushing blade 404. The connecting rods 403 are located on the outside of the return cylinder 501 and do not affect the use of the circulating return assembly 5. The rotation of the crushing blade 404 can cut and crush the graphite on the upper side of the inside of the crushing box 1.

[0025] like Figures 1-2 As shown, a recycling assembly 5 is installed on the lower side of the inside of the crushing box 1. The recycling assembly 5 includes a recycling cylinder 501, an inlet 502, a lower motor 503, a rotating rod 504, and a spiral feeder 505. Four inlets 502 are provided on the lower outer wall of the recycling cylinder 501, and the lower motor 503 is installed at the bottom of the recycling cylinder 501. The rotating rod 504 is rotatably mounted inside the recycling cylinder 501, and the spiral feeder 505 is fixed to the outer side of the rotating rod 504. The inlets 502 are designed with... The arrangement allows the graphite at the bottom of the crushing chamber 1 to enter the return cylinder 501. The lower motor 503 facilitates the rotation of the rotating rod 504 and the spiral feeder 505. The upper side of the return cylinder 501 has an open structure, which allows the spiral feeder 505 to feed the graphite in the return cylinder 501 upwards and allow this part of the graphite to exit through the upper opening of the return cylinder 501. This circulates the graphite at the bottom of the return cylinder 501 back to its upper side for repeated grinding, thereby improving the degree of crushing.

[0026] like Figures 1-3 As shown, a grinding assembly 7 is arranged in the lower middle part of the crushing box 1, and the grinding assembly 7 is located outside the return cylinder 501. The grinding assembly 7 includes a fixed grinding plate 701 and a moving grinding plate 702, and both the fixed grinding plate 701 and the moving grinding plate 702 are annular in shape. The fixed grinding plate 701 is fixedly connected to the inner wall of the crushing box 1, and the moving grinding plate 702 is arranged on the upper side of the fixed grinding plate 701. The grinding assembly 7 also includes an upper slot 703, grinding teeth 704, a lower slot 705, and a filter screen 706. The moving grinding plate 702 and the fixed grinding plate 701 are arranged in annular shape. The grinding assembly 7 includes an upper slot 703 and a lower slot 705, with a filter screen 706 fixed inside the lower slot 705. Grinding teeth 704 are fixed to the lower sidewall of the moving grinding plate 702 and the upper sidewall of the fixed grinding plate 701. The grinding assembly 7 also includes an outer frame 707, a rotating ring 708, and a passive toothed ring 709. The outer frame 707 is fixed to the upper side of the fixed grinding plate 701 and is rotatably connected to the moving grinding plate 702. A rotating ring 708 is fixed to the middle of the moving grinding plate 702, and passive teeth are fixed to the outer wall of the middle portion of the rotating ring 708. The grinding assembly 7, including ring 709, further comprises an active gear ring 710, a drive motor 711, and a scraper 712. One side of the passive gear ring 709 is engaged with the active gear ring 710, and the drive motor 711 is mounted on the lower side of the active gear ring 710. The lower side of the rotating ring 708 is rotatably connected to the fixed grinding plate 701, and the scraper 712 is connected to the bottom of the rotating ring 708, with the scraper 712 having an "L"-shaped structure. The outer protective frame 707 protects the passive gear ring 709 and the active gear ring 710, and the drive motor 711 facilitates the movement of the active gear ring 710. The rotation of the active gear ring 710 and the passive gear ring 709 is meshed, which can drive the passive gear ring 709, the rotating ring 708, and the moving grinding plate 702 to rotate. The material can enter between the moving grinding plate 702 and the fixed grinding plate 701 through the upper slot 703 of the moving grinding plate 702. The grinding teeth 704 between the two can improve the grinding efficiency. The ground graphite can be discharged through the lower slot 705 and the filter screen 706. The rotating ring 708 can drive the scraper 712 to rotate synchronously. The scraper 712 is set to facilitate the discharge of the discharge pipe 6.

[0027] In summary, as Figures 1-4As shown, this graphite crushing device for lithium battery manufacturing, in use, firstly feeds graphite through the feed hopper 301, which causes the rotating motor 303 to drive the crushing rollers 302 to rotate. The two crushing rollers 302 rotate in opposite directions, which can initially crush the graphite entering the feed hopper 301. The initially crushed graphite can fall into the crushing chamber 1. Then, the upper motor 401 and the rotating shaft 402 drive the connecting rod 403 and the crushing blade 404 to rotate. Then, the crushing blade 404 rotates to cut and crush the graphite on the upper side of the crushing chamber 1. Then, the material can enter between the moving grinding plate 702 and the fixed grinding plate 701 through the upper slot 703 of the moving grinding plate 702. At this time, the drive motor 711 can drive the rotation of the active gear ring 710. The active gear ring 710 and the passive gear ring 709 are meshed, which can drive the passive gear ring 709 and the rotating ring 701. 8. The rotation of the grinding plate 702 improves the grinding efficiency of the grinding teeth 704. The ground graphite can be fed through the lower slot 705 and the filter screen 706. The graphite in the lower part of the crushing box 1 can enter the return cylinder 501 through the feed port 502. The lower motor 503 drives the rotating rod 504 and the spiral feeding blade 505 to rotate. The upper side of the return cylinder 501 has an open structure, which allows the spiral feeding blade 505 to feed the graphite in the return cylinder 501 upward and allow this part of the graphite to be discharged through the upper opening of the return cylinder 501. Thus, the graphite below the return cylinder 501 is recycled back to its upper side for repeated grinding, improving the degree of crushing. In addition, during the grinding process, the rotating ring 708 can drive the scraper 712 to rotate synchronously. The scraper 712 is set to facilitate the discharge of the discharge pipe 6. This completes the use process of the graphite crushing device for lithium battery manufacturing.

[0028] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A graphite pulverizing device for lithium battery manufacturing, comprising a pulverizing chamber (1), a recycling assembly (5), and a grinding assembly (7), characterized in that, The upper side of the crushing box (1) is equipped with an upper cover plate (2), and the lower side of the crushing box (1) is connected to a discharge pipe (6). The middle of the upper cover plate (2) is equipped with a crushing assembly (4). The lower side of the inside of the crushing box (1) is equipped with a circulating return assembly (5), which includes a return cylinder (501), a feed inlet (502), a lower motor (503), a rotating rod (504), and a spiral feeder (505). The lower outer wall of the return cylinder (501) is provided with four feed inlets (502), and the bottom of the return cylinder (501) is equipped with a lower motor (503). A rotating rod (504) is rotatably installed inside the cylinder (501), and a spiral feeding blade (505) is fixed on the outside of the rotating rod (504). A grinding assembly (7) is provided in the lower middle part of the crushing box (1), and the grinding assembly (7) is located on the outside of the return cylinder (501). The grinding assembly (7) includes a fixed grinding plate (701) and a moving grinding plate (702), and both the fixed grinding plate (701) and the moving grinding plate (702) are ring-shaped. The fixed grinding plate (701) is fixedly connected to the inner wall of the crushing box (1), and the moving grinding plate (702) is provided on the upper side of the fixed grinding plate (701).

2. The graphite pulverizing device for lithium battery manufacturing according to claim 1, characterized in that, Feeding components (3) are installed on both sides of the upper cover plate (2), and the feeding components (3) include feeding hoppers (301). The feeding hoppers (301) are embedded and fixed on both sides of the upper cover plate (2), and the upper and lower sides of the feeding hoppers (301) are open structures.

3. The graphite pulverizing device for lithium battery manufacturing according to claim 2, characterized in that, The feeding assembly (3) also includes a crushing roller (302) and a rotating motor (303). The inside of the feeding hopper (301) is rotatably equipped with two crushing rollers (302), and a rotating motor (303) is installed at one end of the outer side of the crushing roller (302).

4. The graphite pulverizing device for lithium battery manufacturing according to claim 1, characterized in that, The crushing assembly (4) includes an upper motor (401) and a rotating shaft (402). The upper motor (401) is installed on the upper side of the middle part of the upper cover plate (2), and the rotating shaft (402) that penetrates the upper cover plate (2) is provided on the lower side of the upper motor (401).

5. The graphite pulverizing apparatus for lithium battery manufacturing according to claim 4, characterized in that, The crushing assembly (4) also includes a connecting rod (403) and a crushing blade (404). Four sets of connecting rods (403) are connected to the outside of the rotating shaft (402), and the connecting rods (403) are located outside the return cylinder (501). The outer wall of the connecting rods (403) is fixed with the crushing blade (404).

6. The graphite pulverizing device for lithium battery manufacturing according to claim 1, characterized in that, The grinding assembly (7) further includes an upper slot (703), grinding teeth (704), a lower slot (705), and a filter screen (706). The moving grinding plate (702) and the fixed grinding plate (701) are respectively provided with an upper slot (703) and a lower slot (705), and the filter screen (706) is fixed inside the lower slot (705). Grinding teeth (704) are fixed on the lower sidewall of the moving grinding plate (702) and the upper sidewall of the fixed grinding plate (701).

7. The graphite pulverizing apparatus for lithium battery manufacturing according to claim 6, characterized in that, The grinding assembly (7) further includes an outer protective frame (707), a rotating ring (708), and a passive toothed ring (709). The outer protective frame (707) is fixed on the upper side of the fixed grinding plate (701), and the outer protective frame (707) is rotatably connected to the moving grinding plate (702). The rotating ring (708) is fixed in the middle of the moving grinding plate (702), and the passive toothed ring (709) is fixed on the outer wall of the middle part of the rotating ring (708).

8. The graphite pulverizing apparatus for lithium battery manufacturing according to claim 7, characterized in that, The grinding assembly (7) further includes an active gear ring (710), a drive motor (711), and a scraper (712). The passive gear ring (709) is engaged with the active gear ring (710) on one side, and the drive motor (711) is installed on the lower side of the active gear ring (710). The lower side of the rotating ring (708) is rotatably connected to the fixed grinding plate (701), and the scraper (712) is connected to the bottom of the rotating ring (708), and the scraper (712) has an "L" shaped structure.

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