Graphite canning device for negative electrode of lithium battery

Abstract

The utility model discloses a graphite canning device for a negative electrode of a lithium battery, which belongs to the technical field of graphite canning devices and comprises a first assembly ring frame, a second assembly ring frame and a filling cylinder which are sequentially arranged from top to bottom, and a suspension mechanism of a graphite raw material bag is assembled on the first assembly ring frame. Two third supporting frames are symmetrically and fixedly connected between the second assembling ring frame and the first assembling ring frame. The four movable block mechanisms capable of moving in a reciprocating mode are arranged on the second assembly ring frame in the circumferential direction at equal intervals, the graphite raw material bags can be repeatedly extruded when being discharged, the problem that in the graphite falling process, graphite raw material puncture positions are blocked, and consequently discharging cannot be achieved is solved, and the graphite canning speed of the device is increased.

Description

Technical Field

[0001] The utility model belongs to the technical field of graphite canning devices, and in particular relates to a graphite canning device for a negative electrode of a lithium battery. Background Art

[0002] Graphite is an allotrope of carbon. It is a gray-black, opaque solid with stable chemical properties, corrosion resistance, and is not prone to react with acids, alkalis, and other agents. It is usually made into negative electrode materials for lithium batteries. Before being made into negative electrode materials for lithium batteries, graphite needs to be canned so that it can be transported to the lithium battery negative electrode material manufacturing site for lithium battery negative electrode material manufacturing.

[0003] Chinese Patent No. 201921094260.4 discloses a graphite canning device for lithium battery negative electrode, which consists of a frame placed on the ground, a graphite raw material bag suspended on the frame, a valved connecting pipe slidably mounted on the frame and located below the graphite raw material bag, and a tank body placed on the ground and located below the valved connecting pipe. When the device is canning graphite, the graphite raw material bag is hung on the frame, the valved connecting pipe is slid, and the valved connecting pipe is pierced through the graphite raw material bag by the valved connecting pipe, and the graphite in the graphite raw material bag enters the tank body through the valved connecting pipe to realize graphite canning.

[0004] The inventors of the present application have discovered that the above-mentioned graphite canning device cans graphite by piercing the graphite raw material bag with a valved connecting tube to allow the graphite to enter the can body through the valved connecting tube. During the canning process of this canning method, if the graphite in the graphite raw material bag falls too fast and blocks the valved connecting tube, it is necessary to manually shake the graphite raw material bag or knock on the valved connecting tube to continue canning, and the canning efficiency is low. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides a graphite canning device for lithium battery negative electrode, which has the characteristic of improving the graphite canning speed of the device.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a graphite canning device for lithium battery negative electrode, comprising: a first assembly ring frame, a second assembly ring frame and a filling barrel arranged in sequence from top to bottom, a suspension mechanism of a graphite raw material bag is arranged on the first assembly ring frame, two third support frames are symmetrically fixedly connected between the second assembly ring frame and the first assembly ring frame, two third support frames are fixedly connected to the first support frames fixedly connected to the ground at side walls away from each other, a programmable controller is fixedly connected to one of the first support frames, four first movable grooves are opened at equal intervals along the circumferential direction inside the second assembly ring frame, movable blocks are arranged inside the first movable groove, a driving mechanism for driving the four movable blocks to move simultaneously in a direction away from or close to each other is arranged between the four movable blocks and the second assembly ring frame, the filling barrel is connected to the second assembly ring frame, a support plate is fixedly connected to the discharge port of the filling barrel, a threaded shaft is connected to the support plate, a conical block is fixedly connected to the top of the threaded shaft, and the suspension mechanism and the driving mechanism are electrically connected to the programmable controller.

[0007] Furthermore, the suspension mechanism includes a first motor fixedly connected to the outer wall of the first assembly ring frame and a drive shaft arranged inside the first assembly ring frame, one end of the drive shaft is connected to the output shaft of the first motor through a coupling, and the other end of the drive shaft is connected to the inner wall of the first assembly ring frame through a bearing, two retracting cylinders are symmetrically fixedly sleeved on the drive shaft, a retracting rope is wound around the retracting cylinder, one end of the retracting rope is fixedly connected to the retracting cylinder and the other end extends into the filling cylinder, and the first motor is electrically connected to the programmable controller.

[0008] Furthermore, the driving mechanism includes a first support seat fixedly connected to the inner wall of the second assembly ring frame, an assembly groove opened at the bottom end of the second assembly ring frame, four second support seats fixedly connected to the inner wall of the second assembly ring frame at equal intervals along the circumferential direction, and a rack fixedly connected to the movable block, a second motor is fixedly connected to the top of the first support seat, the output shaft of the second motor passes through the first support seat and extends to the bottom where a first gear is fixedly sleeved, an inner gear ring meshing with the first gear is connected to the inside of the assembly groove via a bearing, a connecting shaft is connected to the second support seat via a bearing, a third gear meshing with an adjacent rack is fixedly sleeved on the connecting shaft and located above the second support seat, a second gear meshing with the inner gear ring is fixedly sleeved on the connecting shaft and located below the second support seat, and the second motor is electrically connected to the programmable controller.

[0009] Furthermore, a movement limiting mechanism is installed between the movable block and the second assembly ring frame, and the movement limiting mechanism includes a fixed block fixedly connected to the inside of the first movable groove and a second movable groove opened in the movable block, and the second movable groove is movably sleeved outside the fixed block.

[0010] Furthermore, the distance between the filling cylinder and the second assembly ring frame can accommodate the graphite raw material bag to enter.

[0011] Furthermore, two second support frames are symmetrically fixedly connected between the filling cylinder and the inner gear ring, the threaded shaft is threadedly connected to the support plate, and a plurality of stirring blades are fixedly sleeved on the threaded shaft below the support plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model has four reciprocating movable block mechanisms arranged at equal intervals along the circumferential direction on the second assembly ring frame, which can repeatedly squeeze the graphite raw material bag when the graphite raw material bag is unloaded, so as to avoid the problem of blocking the puncture position of the graphite raw material during the graphite falling process and causing the material to be unable to be unloaded, thereby improving the graphite canning speed of the device.

[0014] 2. The utility model is provided with a rotary stirring mechanism, which can stir the graphite tank body when the graphite is canned, thereby preventing graphite from accumulating in the graphite tank body at the discharge port of the filling cylinder, thereby improving the canning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 It is a vertical cross-sectional view of the utility model;

[0017] Figure 3 For this utility model Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 For this utility model Figure 2 Enlarged view of point B in the middle;

[0019] Figure 5 For this utility model Figure 2 Enlarged view of point C in the middle;

[0020] In the figure: 1. first support frame; 2. programmable controller; 3. second support frame; 4. third support frame; 5. first assembly ring frame; 6. second assembly ring frame; 7. filling cylinder; 8. collection and release cylinder; 9. driving shaft; 10. collection and release rope; 11. first motor; 12. conical block; 13. support plate; 14. threaded shaft; 15. stirring blade; 16. first support seat; 17. first gear; 18. inner gear ring; 19. second motor; 20. second support seat; 21. movable block; 22. second gear; 23. third gear; 24. connecting shaft; 25. rack; 26. first movable groove; 27. second movable groove; 28. fixed block; 29. ​​assembly groove. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Embodiment 1

[0023] See also Figure 1-5 The utility model provides the following technical solutions: a graphite canning device for lithium battery negative electrode, comprising: a first assembly ring frame 5, a second assembly ring frame 6 and a filling barrel 7 arranged in sequence from top to bottom, the first assembly ring frame 5 is equipped with a suspension mechanism for a graphite raw material bag, two third support frames 4 are symmetrically fixedly connected between the second assembly ring frame 6 and the first assembly ring frame 5, the two third support frames 4 are respectively fixedly connected to the first support frames 1 fixedly connected to the ground by bolts away from the side walls, and a programmable controller of model VH-24MR is fixedly connected to one of the first support frames 1 2. Four first movable grooves 26 are provided at equal intervals along the circumferential direction inside the second assembly ring frame 6, and movable blocks 21 are provided inside the first movable grooves 26. A driving mechanism for driving the four movable blocks 21 to move away from or towards each other at the same time is installed between the four movable blocks 21 and the second assembly ring frame 6. The filling cylinder 7 is connected to the second assembly ring frame 6. A support plate 13 is fixedly connected to the discharge port of the filling cylinder 7. A threaded shaft 14 is connected to the support plate 13. A conical block 12 is fixedly connected to the top of the threaded shaft 14. The suspension mechanism and the driving mechanism are electrically connected to the programmable controller 2.

[0024] See attached Figure 1 , 25. When the graphite canning device for the negative electrode of the lithium battery is used for graphite canning, the suspension mechanism is controlled by the programmable controller 2 to suspend the graphite raw material bag above the filling cylinder 7, and the graphite can body is placed under the filling cylinder 7. The suspension mechanism is controlled to descend by the programmable controller 2, so that the graphite raw material bag contacts the conical block 12, and the tip of the conical block 12 pierces the graphite raw material bag. The suspension mechanism is controlled to rise by the programmable controller 2 until the tip of the conical block 12 is separated from the graphite raw material bag and the graphite raw material bag stops discharging graphite, and the graphite falls into the filling cylinder 7 through the pierced position of the graphite raw material bag, and then enters the graphite can body through the discharge port of the filling cylinder 7 to realize graphite canning. During the graphite canning process, the programmable controller 2 is used to control the graphite raw material bag to be punctured. The control driving mechanism is started, and the driving mechanism drives the four movable blocks 21 to move back and forth in the four first movable grooves 26 to squeeze the graphite raw material bag, so as to avoid the problem of blocking the puncture position of the graphite raw material during the graphite falling process and causing the material to be unable to be dropped, thereby improving the graphite filling speed of the device. After the graphite tank body is full, the programmable controller 2 is used to control the suspension mechanism to descend, so that the graphite raw material bag contacts the conical block 12, and the conical block 12 blocks the puncture position of the graphite raw material bag to stop the material dropping. The graphite tank body is replaced, and the programmable controller 2 is used to control the suspension mechanism to rise, so that the graphite raw material bag can continue to drop the material, and the graphite canning continues. If the graphite in the graphite raw material bag is filled, the graphite raw material bag is replaced according to the above method until the canning operation is completed.

[0025] Specifically, the suspension mechanism includes a first motor 11 with model number 5IK90RGU-CF fixedly connected to the outer wall of the first assembly ring frame 5 and a drive shaft 9 arranged inside the first assembly ring frame 5, one end of the drive shaft 9 is connected to the output shaft of the first motor 11 through a coupling, and the other end of the drive shaft 9 is connected to the inner wall of the first assembly ring frame 5 through a bearing, and two retracting cylinders 8 are symmetrically fixedly sleeved on the drive shaft 9, and a retracting rope 10 is wound around the retracting cylinder 8, one end of the retracting rope 10 is fixedly connected to the retracting cylinder 8 and the other end extends into the filling cylinder 7, and the first motor 11 is electrically connected to the programmable controller 2.

[0026] See attached Figure 2 The suspension mechanism is achieved by tying one end of two retracting ropes 10 to the graphite raw material bag, and controlling the first motor 11 to start through the programmable controller 2. The first motor 11 drives the output shaft to rotate forward, drives the drive shaft 9 to rotate forward, drives the two retracting cylinders 8 to rotate forward, and drives the two retracting ropes 10 to reel in to achieve suspension. At the same time, the output shaft of the first motor 11 rotates in the reverse direction, drives the drive shaft 9 and the two retracting cylinders 8 to rotate in the reverse direction, and drives the two retracting ropes 10 to be lowered to achieve descent.

[0027] Specifically, the driving mechanism includes a first support seat 16 fixedly connected to the inner wall of the second assembly ring frame 6, an assembly groove 29 opened at the bottom end of the second assembly ring frame 6, four second support seats 20 fixedly connected to the inner wall of the second assembly ring frame 6 at equal intervals along the circumferential direction, and a rack 25 fixedly connected to the movable block 21. A second motor 19 with model 5IK90RGU-CF is fixedly connected to the top of the first support seat 16. The output shaft of the second motor 19 passes through the first support seat 16 and extends to the bottom, where a first gear 17 is fixedly sleeved. An inner gear ring 18 meshing with the first gear 17 is connected to the inside of the assembly groove 29 through a bearing. A connecting shaft 24 is connected to the second support seat 20 through a bearing. A third gear 23 meshing with the adjacent rack 25 is fixedly sleeved on the connecting shaft 24, located above the second support seat 20. A second gear 22 meshing with the inner gear ring 18 is fixedly sleeved on the connecting shaft 24, located below the second support seat 20. The second motor 19 is electrically connected to the programmable controller 2.

[0028] See attached Figure 2-5 The driving mechanism is controlled by the programmable controller 2 to start the second motor 19, and the second motor 19 drives the output shaft to rotate forward or reversely, drives the first gear 17 to rotate forward or reversely, drives the inner gear ring 18 to rotate forward or reversely, drives the four second gears 22 to rotate forward or reversely, drives the four connecting shafts 24 to rotate forward or reversely, drives the four third gears 23 to rotate forward or reversely, and drives the four movable blocks 21 to move toward or away from each other to realize the reciprocating movement drive of the four movable blocks 21.

[0029] Specifically, a movement limiting mechanism is installed between the movable block 21 and the second assembly ring frame 6 , and the movement limiting mechanism includes a fixed block 28 fixedly connected to the inside of the first movable groove 26 and a second movable groove 27 opened in the movable block 21 , and the second movable groove 27 is movably sleeved outside the fixed block 28 .

[0030] See attached Figure 5 When the movable block 21 moves inside the first movable groove 26, since the second movable groove 27 is movably sleeved outside the fixed block 28, the problem of excessive movement of the movable block 21 affecting subsequent movement can be avoided.

[0031] Specifically, the distance between the filling cylinder 7 and the second assembly ring frame 6 can accommodate the graphite raw material bag to enter.

[0032] Embodiment 2

[0033] The difference between this embodiment and the first embodiment is that:

[0034] Specifically, two second support frames 3 are symmetrically fixed between the filling cylinder 7 and the inner gear ring 18 , the threaded shaft 14 is threadedly connected to the support plate 13 , and a plurality of stirring blades 15 are fixedly sleeved on the threaded shaft 14 below the support plate 13 .

[0035] See attached Figure 2 and 5 After the graphite tank is placed, the threaded shaft 14 is rotated forward, and the threaded shaft 14 moves downward during rotation, driving multiple stirring blades 15 to move downward and extend into the graphite tank. During the graphite canning process, the inner gear ring 18 drives the two second support frames 3 to rotate during rotation, drives the filling barrel 7 to rotate, drives the support plate 13, the threaded shaft 14 and the multiple stirring blades 15 to rotate, and the multiple rotating stirring blades 15 can stir the graphite entering the graphite tank to prevent graphite from accumulating in the graphite tank at the discharge port of the filling barrel 7; before taking the graphite tank, the threaded shaft 14 is rotated in the reverse direction to drive the multiple stirring blades 15 to rise and disengage from the graphite tank, so as to facilitate taking the graphite tank.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A graphite canning device for lithium battery negative electrode, characterized in that: include: A first assembly ring frame (5), a second assembly ring frame (6) and a filling barrel (7) are arranged in sequence from top to bottom. The first assembly ring frame (5) is equipped with a suspension mechanism for a graphite raw material bag. Two third support frames (4) are symmetrically fixedly connected between the second assembly ring frame (6) and the first assembly ring frame (5). The two third support frames (4) are fixedly connected to first support frames (1) fixedly connected to the ground at side walls away from each other. A programmable controller (2) is fixedly connected to one of the first support frames (1). Four first movable grooves ( 26), a movable block (21) is arranged inside the first movable groove (26), a driving mechanism for driving the four movable blocks (21) to move simultaneously in a direction away from or close to each other is installed between the four movable blocks (21) and the second assembly ring frame (6), the filling cylinder (7) is connected to the second assembly ring frame (6), a support plate (13) is fixedly connected to the discharge port of the filling cylinder (7), a threaded shaft (14) is connected to the support plate (13), a conical block (12) is fixedly connected to the top of the threaded shaft (14), and a suspension mechanism and a driving mechanism are electrically connected to the programmable controller (2).

2. The graphite canning device for lithium battery negative electrode according to claim 1, characterized in that: The suspension mechanism comprises a first motor (11) fixedly connected to the outer wall of a first assembly ring frame (5) and a drive shaft (9) arranged inside the first assembly ring frame (5), one end of the drive shaft (9) is connected to the output shaft of the first motor (11) through a coupling, and the other end of the drive shaft (9) is connected to the inner wall of the first assembly ring frame (5) through a bearing, two retractable cylinders (8) are symmetrically fixedly sleeved on the drive shaft (9), a retractable rope (10) is wound around the retractable cylinder (8), one end of the retractable rope (10) is fixedly connected to the retractable cylinder (8) and the other end extends into the filling cylinder (7), and the first motor (11) is electrically connected to the programmable controller (2).

3. The graphite canning device for lithium battery negative electrode according to claim 1, characterized in that: The driving mechanism comprises a first support seat (16) fixedly connected to the inner wall of the second assembly ring frame (6), an assembly groove (29) provided at the bottom end of the second assembly ring frame (6), four second support seats (20) fixedly connected to the inner wall of the second assembly ring frame (6) at equal intervals along the circumferential direction, and a rack (25) fixedly connected to the movable block (21), the top end of the first support seat (16) is fixedly connected to a second motor (19), the output shaft of the second motor (19) passes through the first support seat (16) and extends to the bottom to be fixedly sleeved with a first gear (17), the assembly groove ( 29) is internally connected to an inner gear ring (18) meshing with the first gear (17) through a bearing, the second support seat (20) is connected to a connecting shaft (24) through a bearing, a third gear (23) meshing with the adjacent rack (25) is fixedly sleeved on the connecting shaft (24) located above the second support seat (20), a second gear (22) meshing with the inner gear ring (18) is fixedly sleeved on the connecting shaft (24) located below the second support seat (20), and the second motor (19) is electrically connected to the programmable controller (2).

4. The graphite canning device for lithium battery negative electrode according to claim 1, characterized in that: A movement limiting mechanism is assembled between the movable block (21) and the second assembly ring frame (6), the movement limiting mechanism comprising a fixed block (28) fixedly connected to the inside of the first movable groove (26) and a second movable groove (27) opened in the movable block (21), the second movable groove (27) being movably sleeved outside the fixed block (28).

5. The graphite canning device for lithium battery negative electrode according to claim 1, characterized in that: The distance between the filling cylinder (7) and the second assembly ring frame (6) can accommodate the graphite raw material bag to enter.

6. The graphite canning device for lithium battery negative electrode according to claim 3, characterized in that: Two second support frames (3) are symmetrically fixedly connected between the filling cylinder (7) and the inner gear ring (18), the threaded shaft (14) is threadedly connected to the support plate (13), and a plurality of stirring blades (15) are fixedly sleeved on the threaded shaft (14) below the support plate (13).

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