A lithium battery negative electrode material mixing device and its use method

Abstract

The present invention relates to the field of new energy, and in particular to a lithium battery negative electrode material mixing device and a method for using the same. The present invention provides a lithium battery negative electrode material mixing device and a method for using the same, which can reduce the entry of bubbles into the lithium battery negative electrode material and can more fully mix and stir the lithium battery negative electrode material, thereby enhancing the mixing quality. A lithium battery negative electrode material mixing device and a method for using the same, comprising a support, a stirring tank and a mounting plate; the top of the support is fixedly connected to the stirring tank, and the top of the stirring tank is fixedly connected to the mounting plate. The staff injects the lithium battery negative electrode material into the injection tube. After the lithium battery negative electrode material in the stirring tank reaches a certain height, the output shaft of the servo motor drives the drive shaft to rotate, and the swing arm and the stirring arm rotate while swinging back and forth, so that the swing arm and the stirring arm perform the initial mixing and stirring of the lithium battery negative electrode material.

Description

Technical Field

[0001] The present invention relates to the field of new energy, and in particular to a lithium battery negative electrode material mixing device and a method for using the same. Background Art

[0002] The production of lithium-ion batteries requires the use of positive electrode slurry and negative electrode slurry. The mixing of negative electrode slurry is crucial in the production of lithium-ion batteries. The quality of negative electrode slurry directly affects the quality and performance of lithium-ion battery production.

[0003] Common lithium battery negative electrode materials require mixing of multiple slurries, and existing devices for mixing and stirring lithium battery negative electrode materials usually use a motor to drive the stirring blade to rotate. Then the worker pours a certain proportion of negative electrode materials and mixed raw materials into the mixing drum, and starts the motor to drive the stirring blade to rotate and mix and stir them. Common mixing devices easily cause bubbles in the lithium battery negative electrode materials during the stirring process. The bubbles cause insufficient mixing and stirring, resulting in a decrease in the mixing quality of the lithium battery negative electrode materials. Summary of the Invention

[0004] In view of the shortcomings of lithium battery negative electrode materials in existing devices that are prone to generate bubbles and insufficient stirring during the mixing process, the purpose of the present invention is to provide a lithium battery negative electrode material mixing device and a method of use that can reduce the entry of bubbles into the lithium battery negative electrode material and can more fully mix and stir the lithium battery negative electrode material, thereby enhancing the mixing quality.

[0005] The technical solution is: a lithium battery negative electrode material mixing device and a method of using the same, comprising a support, a stirring tank, a mounting plate 1, an injection pipe, a mounting plate 2, a discharge valve, a vacuum pump, a guide component and a stirring component, wherein the top of the support is fixedly connected to the stirring tank, the top of the stirring tank is fixedly connected to the mounting plate 1, the top of the mounting plate 1 is fixedly connected to the injection pipe, the stirring tank is communicated with the injection pipe, the bottom of the stirring tank is fixedly connected to the mounting plate 2, the mounting plate 2 is located below the mounting plate 1, the bottom of the mounting plate 2 is fixedly connected to the discharge valve, the stirring tank is communicated with the discharge valve, the outer side of the upper part of the stirring tank is fixedly connected to the vacuum pump, the stirring tank is communicated with the vacuum pump, the guide component is arranged in the stirring tank, and the stirring component is arranged on the mounting plate 1.

[0006] Furthermore, the guide component includes a support plate and a guide seat. Two support plates are fixedly connected to the inner wall of the stirring tank. The two support plates are symmetrically arranged. A guide seat is fixedly connected between the two support plates. The guide seat is provided with several concave surfaces and convex surfaces.

[0007] Furthermore, the stirring component includes a servo motor, a drive shaft, a drive disk, a support rod, a swing rod, a torsion spring and a stirring rod. The bottom of the mounting disk is fixedly connected to the servo motor, the output shaft of the servo motor is fixedly connected to the drive shaft, the bottom of the drive shaft is fixedly connected to the drive disk, eight support rods are fixedly connected to the drive disk, four of the support rods form a group, a swing rod is rotatably connected to the support rod, two torsion springs are connected between the support rod and the swing rod, the swing rod contacts the concave surface of the guide seat, a stirring rod is fixedly connected to the swing rod above the drive disk, and two stirring rods are fixedly connected to the swing rod below the drive disk.

[0008] Furthermore, it also includes a scraper. Two scrapers are fixedly connected to the driving shaft. The two scrapers are symmetrically arranged and both of them are in contact with the inner wall of the stirring tank.

[0009] Furthermore, it also includes a bubble-assisting elimination component, which is arranged on the scraper and connected to the stirring tank. The bubble-assisting elimination component includes a curved surface cover, a curved plate, a pump body and a feed pipe. The curved surface cover is fixedly connected between the two scrapers, the upper part of the swing arm above the driving disk is fixedly connected to the curved plate, the second mounting disk is fixedly connected to the pump body, the stirring tank is connected to the pump body, the bottom of the pump body is fixedly connected to the feed pipe, the feed pipe is connected to the pump body, and the end of the feed pipe away from the pump body is connected to the upper part of the stirring tank.

[0010] Furthermore, it also includes a scraping component, which is arranged on the arc plate. The scraping component includes an electric slide rail, a slider, a connecting rod and a scraping plate. The electric slide rail is fixedly connected to the inner side of the arc plate, the slider is slidably connected to the electric slide rail, the slider is fixedly connected to the connecting rod, and the connecting rod is fixedly connected to the scraping plate.

[0011] Furthermore, a plurality of inclined grooves are formed on the bottom of the scraper plate.

[0012] A method for using a lithium battery negative electrode material mixing device comprises the following steps:

[0013] Step 1: The staff injects the lithium battery negative electrode material into the injection tube, turns on the servo motor, and the output shaft of the servo motor drives the drive shaft to rotate. The guide seat limits the swing rod. The swing rod and the stirring rod rotate and swing back and forth simultaneously to perform the initial mixing and stirring of the lithium battery negative electrode material. The servo motor is then turned off.

[0014] Step 2: Turn on the vacuum pump to extract the gas and remove the bubbles generated during the stirring process, and open the discharge valve to discharge the lithium battery negative electrode material after the initial mixing;

[0015] Step 3: The drive shaft drives the scraper to rotate, and the scraper scrapes off the lithium battery negative electrode material on the inner wall of the stirring tank;

[0016] Step 4: The staff starts the pump body, which extracts the lithium battery negative electrode material into the delivery pipe, and the delivery pipe sprays it onto the arc mask and the arc plate;

[0017] Step 5: When the swing rod swings up and down, it drives the arc plate to swing back and forth, and the arc cover rotates. The lithium battery negative electrode material slowly flows from the arc plate to the arc cover. The lithium battery negative electrode material flows slowly downward more evenly along the arc plate and the arc cover, and the lithium battery negative electrode material falls back onto the stirring tank for further stirring;

[0018] Step 6: The staff turns on the electric slide, and the slider drives the scraper to move back and forth through the connecting rod. The lithium battery negative electrode material on the scraper slowly flows to the stirring tank and is stirred again. The staff then turns off the electric slide.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] 1. The staff injects the lithium battery negative electrode material into the injection tube. After the lithium battery negative electrode material in the stirring tank reaches a certain height, the output shaft of the servo motor drives the drive shaft to rotate, thereby driving the swing rod and the stirring rod to rotate. The swing rod and the stirring rod will swing back and forth while rotating, so that the swing rod and the stirring rod perform the initial mixing and stirring of the lithium battery negative electrode material. The staff turns on the vacuum pump, and the vacuum pump extracts the gas in the stirring tank to form a vacuum environment in the stirring tank. The vacuum pump can extract the bubbles generated during the stirring process and can more fully mix the lithium battery negative electrode material.

[0021] 2. The pump body extracts the lithium battery negative electrode material in the stirring tank into the feed pipe, and the feed pipe sprays it onto the curved cover and the curved plate. The swing rod drives the curved plate to swing up and down. The curved plate and the curved cover rotate to allow the lithium battery negative electrode material to be spread flat on the curved plate and the curved cover. The curved plate swings back and forth to reduce the accumulation of lithium battery negative electrode material on the curved plate and increase the residence time of the lithium battery negative electrode material on the curved plate and the curved cover, which can more fully extract the bubbles. The curved plate and the curved cover guide the lithium battery negative electrode material, so that the lithium battery negative electrode material flows slowly downward more evenly along the curved plate and the curved cover, thereby reducing the bubbles in the lithium battery negative electrode material and making the lithium battery negative electrode material in the stirring tank more fully mixed.

[0022] 3. The electric slide rail drives the slider to move back and forth, the slider drives the connecting rod to move back and forth, the slider drives the scraper through the connecting rod, the scraper scrapes out the bubbles in the negative electrode material of the lithium battery, and the negative electrode material of the lithium battery can be better mixed.

[0023] 4. When the negative electrode material of the lithium battery flows onto the curved plate, the inclined groove on the scraping plate can scrape out the surface of the negative electrode material of the lithium battery, so that the inside of the negative electrode material of the lithium battery is exposed, which can further reduce the generation of bubbles in the negative electrode material of the lithium battery, and thus better mix the negative electrode material of the lithium battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the first three-dimensional structure of the present invention.

[0025] Figure 2 This is a schematic diagram of the second three-dimensional structure of the present invention.

[0026] Figure 3 This is a schematic diagram of a partially cutaway three-dimensional structure of the first embodiment of the present invention.

[0027] Figure 4 This is a schematic diagram of a partially cutaway three-dimensional structure of the second embodiment of the present invention.

[0028] Figure 5 It is a partial three-dimensional structural schematic diagram of the guide component and the bubble auxiliary elimination component of the present invention.

[0029] Figure 6 It is a schematic diagram of the partial cross-sectional three-dimensional structure of the stirring component of the present invention.

[0030] Figure 7 It is a schematic diagram of the partial three-dimensional structure of the guide component and the stirring component of the present invention.

[0031] Figure 8 It is a partial three-dimensional structural schematic diagram of the stirring component and the bubble auxiliary elimination component of the present invention.

[0032] Figure 9 It is a schematic diagram of the partial three-dimensional structure of the stirring component of the present invention.

[0033] Figure 10 This is a partial three-dimensional structural diagram of the first type of scraper and bubble auxiliary elimination component of the present invention.

[0034] Figure 11 This is a partial three-dimensional structural diagram of the second type of scraper and bubble auxiliary elimination component of the present invention.

[0035] Figure 12 This is a schematic diagram of the partial three-dimensional structure of the first type of scraping component of the present invention.

[0036] Figure 13 This is a schematic diagram of the partial three-dimensional structure of the second type of scraping component of the present invention.

[0037] Figure 14 It is a schematic diagram of the three-dimensional structure of the scraping component and the inclined groove of the present invention.

[0038] Among them, the above-mentioned drawings include the following figure marks: 1. support, 21. stirring tank, 22. Mounting plate 1, 23. Liquid injection pipe, 24. Mounting plate 2, 25. Discharge valve, 3. Vacuum pump, 41. Support plate, 42. Guide seat, 51. Servo motor, 52. Drive shaft, 53. Drive plate, 54. Support rod, 55. Swing rod, 56. Torsion spring, 57. Stirring rod, 6. Scraper, 71. Arc cover, 72. Arc plate, 73. Pump body, 74. Feed pipe, 81. Electric slide rail, 82. Slider, 83. Connecting rod, 84. Scraper plate, 9. Chute. DETAILED DESCRIPTION

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0040] Example 1

[0041] A lithium battery negative electrode material mixing device and a method of using the same, such as Figures 1-9 As shown, it includes a support 1, a stirring tank 21, a mounting plate 1 22, a liquid injection pipe 23, a mounting plate 24, a discharge valve 25, a vacuum pump 3, a guide component and a stirring component. The top of the support 1 is fixedly connected to the stirring tank 21, and the stirring tank 21 is used to store the negative electrode material of the lithium battery. The top of the stirring tank 21 is fixedly connected to the mounting plate 1 22, and the top of the mounting plate 1 22 is fixedly connected to the liquid injection pipe 23. The stirring tank 21 is connected to the liquid injection pipe 23, and the bottom of the stirring tank 21 is fixedly connected to the mounting plate 24. The mounting plate 22 is fixedly connected to the liquid injection pipe 23. 4 is located below the mounting plate 1 22. A discharge valve 25 is fixedly connected to the bottom of the mounting plate 24. The stirring tank 21 is communicated with the discharge valve 25. The discharge valve 25 is used to discharge the mixed lithium battery negative electrode material. A vacuum pump 3 is fixedly connected to the outer side of the upper part of the stirring tank 21. The vacuum pump 3 is used to extract the air in the stirring tank 21. The stirring tank 21 is communicated with the vacuum pump 3. The guide component is arranged in the stirring tank 21. The stirring component is arranged on the mounting plate 1 22. The stirring component is used to stir the lithium battery negative electrode material.

[0042] The guide component includes a support plate 41 and a guide seat 42. Two support plates 41 are welded to the inner wall of the stirring tank 21. The two support plates 41 are symmetrically arranged. The guide seat 42 is bolted between the two support plates 41. The guide seat 42 has several concave and convex surfaces.

[0043] The stirring component includes a servo motor 51, a drive shaft 52, a drive disk 53, a support rod 54, a swing rod 55, a torsion spring 56 and a stirring rod 57. The servo motor 51 is fixedly connected to the bottom of the mounting disk 22, and the output shaft of the servo motor 51 is fixedly connected to the drive shaft 52. The drive shaft 52 is vertically arranged, and the bottom of the drive shaft 52 is fixedly connected to the drive disk 53. Eight support rods 54 are welded on the drive disk 53, and four of the support rods 54 form a group. The support rod 54 is rotatably connected to the swing rod 55, and two torsion springs 56 are connected between the support rod 54 and the swing rod 55. The swing rod 55 contacts the concave surface of the guide seat 42, and the guide seat 42 limits the swing rod 55. A stirring rod 57 is fixedly connected to the swing rod 55 above the drive disk 53, and two stirring rods 57 are fixedly connected to the swing rod 55 below the drive disk 53. The stirring rod 57 is used to stir the lithium battery negative electrode material in the injection tube 23.

[0044] The staff first injects the negative electrode material of the lithium battery into the injection pipe 23, and the negative electrode material of the lithium battery flows downward into the stirring tank 21. After the negative electrode material of the lithium battery in the stirring tank 21 reaches a certain height, the staff stops injecting the negative electrode material of the lithium battery into the injection pipe 23, and then turns on the servo motor 51. The output shaft of the servo motor 51 drives the drive shaft 52 to rotate, the drive shaft 52 drives the drive disk 53 to rotate, the drive disk 53 drives the support rod 54 to rotate, the support rod 54 drives the swing rod 55 to rotate, the swing rod 55 drives the stirring rod 57 to rotate, the guide seat 42 limits the swing rod 55, and when the swing rod 55 rotates to the convex surface of the guide seat 42, the convex surface of the guide seat 42 will squeeze the swing rod 55, the torsion spring 56 is twisted, and the swing rod 55 and the stirring rod 57 swing upward. When it rotates to the concave surface of the guide seat 42, the guide seat 42 no longer squeezes the swing rod 55, and the torsion spring 56 is reset. The reset of the torsion spring 56 drives the swing rod 55 and the stirring rod 57 to swing downward, and reciprocate in sequence. The swing rod 55 and the stirring rod 57 will swing back and forth while rotating, so that the swing rod 55 and the stirring rod 57 perform the initial mixing and stirring of the lithium battery negative electrode material. Then the staff turns off the servo motor 51 and turns on the vacuum pump 3. The vacuum pump 3 extracts the gas in the stirring tank 21 to form a vacuum environment in the stirring tank 21. The vacuum pump 3 can extract the bubbles generated during the stirring process and can more fully mix the lithium battery negative electrode material. After the mixing of the lithium battery negative electrode material is completed, the vacuum pump 3 is turned off, and the staff opens the discharge valve 25 to discharge the lithium battery negative electrode material after the initial mixing.

[0045] Example 2

[0046] On the basis of Example 1, Figure 10-11As shown, a scraper 6 is also included. Two scrapers 6 are welded to the drive shaft 52. The two scrapers 6 are symmetrically arranged. Both of the scrapers 6 are in contact with the inner wall of the stirring tank 21. The scrapers 6 are used to scrape off the material on the inner wall of the stirring tank 21.

[0047] When the drive shaft 52 rotates, the drive shaft 52 drives the scraper 6 to rotate, and the scraper 6 scrapes off the lithium battery negative electrode material on the inner wall of the stirring tank 21, reducing the accumulation of lithium battery negative electrode material on the inner wall of the stirring tank 21, thereby reducing waste.

[0048] Example 3

[0049] On the basis of Example 1, Figure 10-11 As shown, it also includes a bubble auxiliary elimination component, which is arranged on the scraper 6 and connected to the stirring tank 21. The bubble auxiliary elimination component includes a curved cover 71, a curved plate 72, a pump body 73 and a feed pipe 74. The curved cover 71 is fixedly connected between the two scrapers 6. The curved cover 71 is used to guide the negative electrode material of the lithium battery. The upper part of the swing rod 55 located above the driving disk 53 is fixedly connected with the curved plate 72. The pump body 73 is fixedly connected to the mounting disk 24. The stirring tank 21 is connected to the pump body 73. A feed pipe 74 is welded to the bottom of the pump body 73. The feed pipe 74 is used to transport the negative electrode material. The feed pipe 74 is connected to the pump body 73, and the end of the feed pipe 74 away from the pump body 73 is connected to the upper part of the stirring tank 21.

[0050] When the lithium battery negative electrode material in the stirring tank 21 is being stirred, the staff starts the pump body 73, and the pump body 73 extracts the lithium battery negative electrode material mixed for the first time in the stirring tank 21 into the delivery pipe 74. The lithium battery negative electrode material flows upward through the delivery pipe 74, and the delivery pipe 74 is sprayed from one end close to the vacuum pump 3 to the arc cover 71 and the arc plate 72. When the swing rod 55 swings up and down, it will drive the arc plate 72 to swing up and down. By rotating the arc plate 72 and the arc cover 71, the lithium battery negative electrode material can be spread flat on the arc plate 72 and the arc cover 71. The arc plate 72 swings back and forth to reduce the lithium battery on the arc plate 72. The battery negative electrode material accumulates, increasing the residence time of the lithium battery negative electrode material on the curved plate 72 and the curved cover 71, which can more fully extract the bubbles, and the lithium battery negative electrode material slowly flows from the curved plate 72 to the curved cover 71. The curved plate 72 and the curved cover 71 can guide the lithium battery negative electrode material, so that the lithium battery negative electrode material flows more evenly along the curved plate 72 and the curved cover 71 slowly downward, thereby reducing the bubbles in the lithium battery negative electrode material, and the lithium battery negative electrode material falls back onto the stirring tank 21 for further stirring, and repeats in sequence, so that the lithium battery negative electrode material in the stirring tank 21 is more fully mixed.

[0051] Example 4

[0052] On the basis of Example 3, Figure 12-14 As shown, it also includes a scraping component, which is arranged on the arc plate 72. The scraping component includes an electric slide rail 81, a slider 82, a connecting rod 83 and a scraping plate 84. The inner side of the arc plate 72 is fixedly connected to the electric slide rail 81, and the electric slide rail 81 has a long groove. The electric slide rail 81 is slidably connected to the slider 82, and the connecting rod 83 is welded on the slider 82. The scraping plate 84 is welded on the connecting rod 83. The scraping plate 84 is used to scrape off bubbles generated by the negative electrode material of the lithium battery on the arc plate 72.

[0053] When the arc-shaped plate 72 is swinging, the staff turns on the electric slide rail 81, the electric slide rail 81 drives the slider 82 to move back and forth, the slider 82 drives the connecting rod 83 to move back and forth, the slider 82 drives the scraper plate 84 to move back and forth through the connecting rod 83, the scraper plate 84 scrapes off the bubbles in the lithium battery negative electrode material, and the lithium battery negative electrode material can be better mixed. The lithium battery negative electrode material on the scraper plate 84 slowly flows to the stirring tank 21, and the stirring tank 21 is stirred again, and the process is repeated back and forth. After the lithium battery negative electrode material is mixed, the staff turns off the electric slide rail 81.

[0054] Example 5

[0055] On the basis of Example 4, Figure 14 As shown, a plurality of inclined grooves 9 are formed at the bottom of the scraping plate 84 . The inclined grooves 9 on the scraping plate 84 are used to scrape off the surface layer of the lithium battery negative electrode material on the arc-shaped plate 72 .

[0056] When the lithium battery negative electrode material flows onto the arc plate 72, the inclined groove 9 on the scraping plate 84 can scrape out the surface of the lithium battery negative electrode material, exposing the inside of the lithium battery negative electrode material, which can further reduce the generation of bubbles in the lithium battery negative electrode material and thus better mix the lithium battery negative electrode material.

[0057] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A lithium battery negative electrode material mixing device, characterized in that: The invention comprises a support (1), an agitating tank (21), a mounting plate 1 (22), a liquid injection pipe (23), a mounting plate 2 (24), a discharge valve (25), a vacuum pump (3), a guide component and an agitating component, wherein the top of the support (1) is fixedly connected to the agitating tank (21), the top of the agitating tank (21) is fixedly connected to the mounting plate 1 (22), the top of the mounting plate 1 (22) is fixedly connected to the liquid injection pipe (23), the agitating tank (21) is communicated with the liquid injection pipe (23), and the agitating tank (21) is connected to the liquid injection pipe (23). 1) A second mounting plate (24) is fixedly connected to the bottom, the second mounting plate (24) is located below the first mounting plate (22), a discharge valve (25) is fixedly connected to the bottom of the second mounting plate (24), the stirring tank (21) is connected to the discharge valve (25), the upper outer side of the stirring tank (21) is fixedly connected to a vacuum pump (3), the stirring tank (21) is connected to the vacuum pump (3), the guide component is arranged in the stirring tank (21), and the stirring component is arranged on the first mounting plate (22); The guide component includes a support plate (41) and a guide seat (42), the inner wall of the stirring tank (21) is fixedly connected to two support plates (41), the two support plates (41) are symmetrically arranged, and a guide seat (42) is fixedly connected between the two support plates (41), and the guide seat (42) is provided with a plurality of concave surfaces and convex surfaces; The stirring component includes a servo motor (51), a drive shaft (52), a drive disk (53), a support rod (54), a swing rod (55), a torsion spring (56) and a stirring rod (57), wherein the bottom of the mounting disk (22) is fixedly connected to the servo motor (51), the output shaft of the servo motor (51) is fixedly connected to the drive shaft (52), the bottom of the drive shaft (52) is fixedly connected to the drive disk (53), eight support rods (54) are fixedly connected to the drive disk (53), four support rods (54) form a group, the support rods (54) are rotatably connected to the swing rods (55), two torsion springs (56) are connected between the support rods (54) and the swing rods (55), the swing rods (55) are in contact with the concave surface of the guide seat (42), a stirring rod (57) is fixedly connected to the swing rod (55) located above the drive disk (53), and two stirring rods (57) are fixedly connected to the swing rod (55) located below the drive disk (53); It also includes a scraper (6), two scrapers (6) are fixedly connected to the drive shaft (52), the two scrapers (6) are symmetrically arranged, and both of the scrapers (6) are in contact with the inner wall of the stirring tank (21); The invention also includes a bubble auxiliary elimination component, which is arranged on the scraper (6) and connected to the stirring tank (21). The bubble auxiliary elimination component includes a curved cover (71), a curved plate (72), a pump body (73) and a feed pipe (74). The curved cover (71) is fixedly connected between the two scrapers (6). The upper part of the swing rod (55) located above the driving disk (53) is fixedly connected to the curved plate (72). The second mounting disk (24) is fixedly connected to the pump body (73). The stirring tank (21) is connected to the pump body (73). The bottom of the pump body (73) is fixedly connected to the feed pipe (74). The feed pipe (74) is connected to the pump body (73). The end of the feed pipe (74) away from the pump body (73) is connected to the upper part of the stirring tank (21).

2. A lithium battery negative electrode material mixing device according to claim 1, characterized in that: The utility model further comprises a scraping component, wherein the scraping component is arranged on the arc plate (72), and the scraping component comprises an electric slide rail (81), a slider (82), a connecting rod (83) and a scraping plate (84). The inner side of the arc plate (72) is fixedly connected to the electric slide rail (81), the slider (82) is slidably connected to the electric slide rail (81), the slider (82) is fixedly connected to the connecting rod (83), and the connecting rod (83) is fixedly connected to the scraping plate (84).

3. A lithium battery negative electrode material mixing device according to claim 2, characterized in that: The bottom of the scraper plate (84) is provided with a plurality of inclined grooves (9).

4. The method for using a lithium battery negative electrode material mixing device according to claim 2, characterized in that: The following steps are involved: Step 1: The staff injects the lithium battery negative electrode material into the injection tube (23), turns on the servo motor (51), and the output shaft of the servo motor (51) drives the drive shaft (52) to rotate. The guide seat (42) limits the swing rod (55). The swing rod (55) and the stirring rod (57) rotate and swing back and forth, performing the initial mixing and stirring of the lithium battery negative electrode material. The servo motor (51) is then turned off. Step 2: Turn on the vacuum pump (3), the vacuum pump (3) extracts the gas and removes the bubbles generated during the stirring process, and opens the discharge valve (25) to discharge the lithium battery negative electrode material after the initial mixing; Step 3: The drive shaft (52) drives the scraper (6) to rotate, and the scraper (6) scrapes off the lithium battery negative electrode material on the inner wall of the stirring tank (21); Step 4: The staff starts the pump body (73), and the pump body (73) extracts the lithium battery negative electrode material into the delivery pipe (74), and the delivery pipe (74) sprays it onto the arc mask (71) and the arc plate (72); Step 5: When the swing rod (55) swings up and down, it drives the arc plate (72) to swing back and forth, and the arc cover (71) rotates. The lithium battery negative electrode material slowly flows from the arc plate (72) to the arc cover (71). The lithium battery negative electrode material slowly flows downward more evenly along the arc plate (72) and the arc cover (71). The lithium battery negative electrode material falls back onto the stirring tank (21) for further stirring. Step 6: The staff turns on the electric slide rail (81), and the slider (82) drives the scraper plate (84) to move back and forth through the connecting rod (83). The lithium battery negative electrode material on the scraper plate (84) slowly flows to the stirring tank (21) and is stirred again. The staff then turns off the electric slide rail (81).

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