A composite mixing device for negative electrode materials

Abstract

The utility model relates to the technical field of mixing equipment, and discloses a composite mixing equipment for negative electrode materials, including a bracket, a bottom plate fixedly connected to the upper part of the bracket, a mixing barrel fixedly connected to the upper part of the bottom plate, a stirring assembly arranged on the upper part of the mixing barrel, a mounting frame fixedly connected to the right side of the outside of the mixing barrel, a crushing box fixedly connected to the upper part of the mounting frame, a second motor arranged outside the crushing box, a first gear fixedly connected to the output end of the second motor, and a second gear meshingly connected to the outside of the first gear. In the utility model, it is realized that before using the mixing material to mix the negative electrode materials, some larger raw materials can be crushed conveniently, and crushing larger raw materials can ensure that all components have similar particle sizes, which is conducive to the uniform mixing of the negative electrode materials, and the uniform mixture can ensure the consistency of the electrochemical performance of the battery materials, and improve the overall performance and life of the battery.

Description

Technical Field

[0001] The utility model relates to the technical field of mixing equipment, in particular to a composite mixing equipment for negative electrode materials. Background Art

[0002] Negative electrode materials are key components in lithium-ion batteries and other battery types, and their performance directly affects the battery's capacity, life, charge and discharge rate, and stability. In batteries, negative electrode materials are mainly responsible for absorbing and storing lithium ions during charging. Negative electrode materials include graphite, hard carbon, silicon-based materials, etc. The composite mixing equipment of negative electrode materials plays a vital role in the battery manufacturing process. It is mainly used to prepare battery negative electrode materials to ensure uniform mixing of materials and appropriate chemical composition.

[0003] When mixing negative electrode materials, traditional composite mixing equipment first puts various raw materials (such as graphite, conductive agent, adhesive, etc.) into the mixing barrel accurately according to a predetermined proportion, and then mixes the negative electrode materials in the mixing barrel with a stirring tool.

[0004] However, although traditional composite mixing equipment can mix negative electrode materials, it cannot crush some larger raw materials before adding them. If the particle sizes of the raw materials are different, especially if there are large block materials, then during the mixing process, these large blocks may not be evenly mixed with other smaller particles, thus affecting the overall performance and life of the battery. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a composite mixing equipment for negative electrode materials, aiming to improve the problem in the prior art that some larger raw materials cannot be crushed. If the raw materials have different particle sizes, especially if there are larger block materials, then during the mixing process, these large block materials may not be evenly mixed with other smaller particles.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A composite mixing device for negative electrode materials comprises a bracket, the upper part of the bracket is fixedly connected to a bottom plate, the upper part of the bottom plate is fixedly connected to a mixing barrel, the upper part of the mixing barrel is provided with a stirring assembly, the right side of the outside of the mixing barrel is fixedly connected to a mounting frame, the upper part of the mounting frame is fixedly connected to a crushing box, a second motor is provided outside the crushing box, the output end of the second motor is fixedly connected to a first gear, the outside of the first gear is meshedly connected to a second gear, the insides of the first gear and the second gear are both fixedly connected to rotating rods, the outsides of the two rotating rods are both fixedly connected to crushing rollers, the lower part of the crushing box is fixedly connected to one end of a feeding pipe, and the other end of the feeding pipe is fixedly connected to the inside of the mixing barrel.

[0008] Furthermore, a feed pipe is fixedly connected to the lower part of the mixing barrel, a conveying pipe is fixedly connected to the bottom of the feed pipe, a third motor is arranged on the left side outside the conveying pipe, a transmission rod is fixedly connected to the output end of the third motor, the transmission rod is rotatably connected to the inside of the conveying pipe, and an auger conveying blade is fixedly connected to the outside of the transmission rod.

[0009] Furthermore, the stirring assembly includes a first motor, the first motor is fixedly connected to the upper part of the mixing barrel, a rotating rod is fixedly connected to the output end of the first motor, and stirring rods are fixedly connected to the outside of the rotating rod all around.

[0010] Furthermore, a support plate is fixedly connected to the outside of the crushing box, and the second motor is fixedly connected to the upper part of the support plate.

[0011] Furthermore, baffles are fixedly connected to both sides of the crushing box, and a material guide plate is fixedly connected to the right side of the bottom of the crushing box.

[0012] Furthermore, an extension plate is fixedly connected to the left side of the outside of the conveying pipeline, and the third motor is fixedly connected to the upper part of the extension plate.

[0013] Furthermore, a discharge port is fixedly connected to the right side of the outside of the conveying pipeline.

[0014] Furthermore, a controller is fixedly connected to the left side of the outside of the mixing barrel, and the controller is electrically connected to the first motor, the second motor and the third motor.

[0015] The utility model has the following beneficial effects:

[0016] 1. In the utility model, when the mixing device is used, the negative electrode material is placed in the crushing box, the second motor is started, the motor drives the first gear to rotate, the gear rotation drives the second gear and the rotating rod to rotate, the rotating rod drives the crushing roller to rotate relatively, and the negative electrode material is crushed. The crushed material enters the mixing barrel through the guide plate and the feed pipe, which makes it easy to crush some larger raw materials before using the mixing device to mix the negative electrode material. Crushing larger raw materials can ensure that all components have similar particle sizes, which is conducive to the uniform mixing of negative electrode materials. The uniform mixture can ensure the consistency of the electrochemical performance of the battery material and improve the overall performance and life of the battery.

[0017] 2. In the utility model, after the negative electrode materials are mixed, they enter the conveying pipeline through the discharge pipe. The third motor is started, and the motor drives the transmission rod and the auger conveying blade to rotate. The blade rotates to discharge the negative electrode materials from the discharge port, which facilitates the automatic discharge of the mixed negative electrode materials. Automatic discharge can reduce material contamination or damage that may occur during manual operation. This method helps to maintain the cleanliness and integrity of the materials, thereby ensuring the consistency and reliability of battery performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional diagram of a composite mixing device for negative electrode materials proposed by the utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of a crushing box of a composite mixing device for negative electrode materials proposed in the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of a feed pipe of a composite mixing device for negative electrode materials proposed by the utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of a mixing barrel of a composite mixing device for negative electrode materials proposed in the utility model;

[0022] Figure 5 A cross-sectional view of a crushing box of a composite mixing device for negative electrode materials proposed in the utility model;

[0023] Figure 6 This is a schematic diagram of the internal structure of a conveying pipeline of a composite mixing device for negative electrode materials proposed by the utility model.

[0024] Legend:

[0025] 1. Bracket; 2. Bottom plate; 3. Mixing barrel; 4. Controller; 5. Stirring assembly; 501. First motor; 502. Rotating rod; 503. Stirring rod; 6. Mounting frame; 7. Crushing box; 8. Support plate; 9. Second motor; 10. First gear; 11. Second gear; 12. Rotating rod; 13. Crushing roller; 14. Baffle; 15. Guide plate; 16. Feeding pipe; 17. Conveying pipeline; 18. Extension plate; 19. Third motor; 20. Transmission rod; 21. Auger conveying blade; 22. Discharge port; 23. Feeding pipeline. DETAILED DESCRIPTION

[0026] 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.

[0027] Reference Figure 1 , Figure 4 and Figure 5 , the utility model provides an embodiment: a composite mixing device for negative electrode materials, including a bracket 1, a bottom plate 2 is fixedly connected to the upper part of the bracket 1, a mixing barrel 3 is fixedly connected to the upper part of the bottom plate 2, a stirring assembly 5 is arranged on the upper part of the mixing barrel 3, a mounting frame 6 is fixedly connected to the right side of the outside of the mixing barrel 3, a crushing box 7 is fixedly connected to the upper part of the mounting frame 6, a second motor 9 is arranged outside the crushing box 7, a first gear 10 is fixedly connected to the output end of the second motor 9, a second gear 11 is meshedly connected to the outside of the first gear 10, a rotating rod 12 is fixedly connected to the inside of the first gear 10 and the second gear 11, a crushing roller 13 is fixedly connected to the outside of the two rotating rods 12, and a feeding pipe is fixedly connected to the lower part of the crushing box 7. One end of the feed pipe 23, the other end of the feed pipe 23 is fixedly connected to the inside of the mixing barrel 3, the stirring assembly 5 includes a first motor 501, the first motor 501 is fixedly connected to the upper part of the mixing barrel 3, the output end of the first motor 501 is fixedly connected to a rotating rod 502, the outer periphery of the rotating rod 502 is fixedly connected to stirring rods 503, the outside of the crushing box 7 is fixedly connected to a support plate 8, the second motor 9 is fixedly connected to the upper part of the support plate 8, the inside of the crushing box 7 is fixedly connected to baffles 14, the right side of the bottom of the crushing box 7 is fixedly connected to a guide plate 15, the left side of the outside of the mixing barrel 3 is fixedly connected to a controller 4, and the controller 4 is electrically connected to the first motor 501, the second motor 9 and the third motor 19.

[0028] When using the mixing device, we first need to put the negative electrode material into the crushing box 7. Next, start the second motor 9. The output end of the second motor 9 is fixed with the first gear 10. When the motor is running, the first gear 10 will also rotate. The rotation of the first gear 10 is not isolated, it will also rotate with the second gear 11 meshed with its outside. This gear transmission method ensures stable power transmission and efficient energy conversion. As the first gear 10 and the second gear 11 rotate, the two internally fixed rotating rods 12 also start to rotate. The two rotating rods 12 are the supporting parts of the crushing roller 13, and their rotation will drive the crushing roller 13 to move relative to each other. The surface of the crushing roller 13 is usually covered with hard crushing teeth, which will collide with each other during the rotation process, thereby crushing the negative electrode material poured into the crushing box 7. The crushed negative electrode material is guided by the guide plate 15 and smoothly enters the inside of the feed pipe 23. The guide plate 15 can effectively prevent the material from being blocked or scattered during the transportation process, ensuring the smooth flow of the material. Next, these materials will enter the interior of the mixing barrel 3 through the feed pipe 23, so that some larger raw materials can be crushed before using the mixer to mix the negative electrode materials. Crushing larger raw materials can ensure that all components have similar particle sizes, which is conducive to the uniform mixing of negative electrode materials. The uniform mixture can ensure the consistency of the electrochemical properties of the battery materials and improve the overall performance and life of the battery. Then, when mixing is needed, the first motor 501 is started, and the first motor 501 rotates with the rotating rod 502 fixed at the output end. The rotation of the rotating rod 502 rotates the stirring rod 503 fixedly connected to the outside, and the negative electrode materials inside the mixing barrel 3 are mixed by the rotation of the stirring rod 503.

[0029] Reference Figure 2 , Figure 3 and Figure 6 A feeding pipe 16 is fixedly connected to the lower part of the mixing barrel 3, a conveying pipe 17 is fixedly connected to the bottom of the feeding pipe 16, a third motor 19 is arranged on the left side outside the conveying pipe 17, a transmission rod 20 is fixedly connected to the output end of the third motor 19, the transmission rod 20 is rotatably connected to the inside of the conveying pipe 17, an auger conveying blade 21 is fixedly connected to the outside of the transmission rod 20, an extension plate 18 is fixedly connected to the left side outside the conveying pipe 17, the third motor 19 is fixedly connected to the upper part of the extension plate 18, and a discharge port 22 is fixedly connected to the right side outside the conveying pipe 17.

[0030] After the negative electrode materials are mixed, these materials will enter the inside of the conveying pipe 17 through the discharge pipe 16. When the negative electrode materials enter the conveying pipe 17, the third motor 19 is started. When the motor is started, the transmission rod 20 rotates accordingly, thereby driving the external fixed auger conveying blade 21 to rotate. The rotation of the auger conveying blade 21 will generate a driving force to move the negative electrode materials forward inside the conveying pipe 17. The auger conveying blade 21 is made of wear-resistant and corrosion-resistant materials to ensure its long-term stable operation. Through the rotation of the auger conveying blade 21, the negative electrode materials are continuously pushed forward inside the conveying pipe 17 and finally discharged through the discharge port 22, which makes it easy to automatically discharge the mixed negative electrode materials. Automatic discharge can reduce material contamination or damage that may occur during manual operation. This method helps to maintain the cleanliness and integrity of the materials, thereby ensuring the consistency and reliability of battery performance.

[0031] Working principle: When using the mixing device, first put the negative electrode material into the crushing box 7, and then start the second motor 9. The second motor 9 drives the first gear 10 fixed at the output end to rotate, and the first gear 10 drives the second gear 11 meshed with the outside to rotate. When the first gear 10 and the second gear 11 rotate, the two rotating rods 12 fixedly connected internally rotate, and the two rotating rods 12 drive the two crushing rollers 13 fixed externally to rotate relative to each other, so as to crush the negative electrode material poured into the crushing box 7. The crushed negative electrode material enters the feed pipe 23 through the guide plate 15, and then enters the mixing barrel 3 through the feed pipe 23, so that some larger raw materials can be crushed before the negative electrode material is mixed with the mixing device. Crushing larger raw materials can ensure that all components have similar particle sizes, which is helpful The uniform mixing of negative electrode materials can ensure the consistency of electrochemical properties of battery materials, improve the overall performance and life of the battery, and then after the negative electrode materials are mixed, the negative electrode materials will enter the interior of the conveying pipe 17 through the discharge pipe 16, and then, the third motor 19 is started, and the third motor 19 rotates with the transmission rod 20 fixedly connected to the output end, and the rotation of the transmission rod 20 drives the external fixedly connected auger conveying blade 21 to rotate, and the negative electrode material that falls into the conveying pipe 17 can be discharged through the discharge port 22 through the rotation of the auger conveying blade 21, so that the operation of automatically discharging the mixed negative electrode materials is realized, and the automatic discharging can reduce the material contamination or damage that may occur during manual operation. This method helps to maintain the cleanliness and integrity of the materials, thereby ensuring the consistency and reliability of battery performance.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A composite mixing device for negative electrode materials, comprising a bracket (1), characterized in that: The upper part of the bracket (1) is fixedly connected to a bottom plate (2), the upper part of the bottom plate (2) is fixedly connected to a mixing barrel (3), the upper part of the mixing barrel (3) is provided with a stirring assembly (5), the right side of the outside of the mixing barrel (3) is fixedly connected to a mounting frame (6), the upper part of the mounting frame (6) is fixedly connected to a crushing box (7), the outside of the crushing box (7) is provided with a second motor (9), the output end of the second motor (9) is fixedly connected to a first gear (10), the outside of the first gear (10) is meshedly connected to a second gear (11), the inside of the first gear (10) and the second gear (11) are both fixedly connected to a rotating rod (12), the outside of the two rotating rods (12) are both fixedly connected to a crushing roller (13), the lower part of the crushing box (7) is fixedly connected to one end of a feeding pipe (23), the other end of the feeding pipe (23) is fixedly connected to the inside of the mixing barrel (3).

2. The composite mixing device of anode material according to claim 1, characterized in that: The lower part of the mixing barrel (3) is fixedly connected to a feed pipe (16), the bottom of the feed pipe (16) is fixedly connected to a conveying pipe (17), a third motor (19) is arranged on the left side of the outside of the conveying pipe (17), the output end of the third motor (19) is fixedly connected to a transmission rod (20), the transmission rod (20) is rotatably connected to the inside of the conveying pipe (17), and the outside of the transmission rod (20) is fixedly connected to an auger conveying blade (21).

3. The composite mixing device of anode material according to claim 1, characterized in that: The stirring assembly (5) comprises a first motor (501), the first motor (501) is fixedly connected to the upper part of the mixing barrel (3), the output end of the first motor (501) is fixedly connected to a rotating rod (502), and the outer periphery of the rotating rod (502) is fixedly connected to stirring rods (503).

4. The composite mixing device of anode material according to claim 1, characterized in that: The crushing box (7) is fixedly connected to a support plate (8) on the outside, and the second motor (9) is fixedly connected to the upper part of the support plate (8).

5. The composite mixing device of negative electrode material according to claim 1, characterized in that: Baffles (14) are fixedly connected to both sides of the crushing box (7), and a material guide plate (15) is fixedly connected to the right side of the bottom of the crushing box (7).

6. The composite mixing device of anode material according to claim 2, characterized in that: An extension plate (18) is fixedly connected to the left side of the outside of the delivery pipeline (17), and the third motor (19) is fixedly connected to the upper part of the extension plate (18).

7. The composite mixing device of anode material according to claim 2, characterized in that: A discharge port (22) is fixedly connected to the right side of the outside of the conveying pipeline (17).

8. The composite mixing device of negative electrode materials according to claim 1, characterized in that: A controller (4) is fixedly connected to the left side of the outside of the mixing barrel (3), and the controller (4) is electrically connected to the first motor (501), the second motor (9) and the third motor (19).

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