Silicon-carbon composite negative electrode material mixing device

Abstract

The utility model discloses a silicon-carbon composite negative electrode material mixing device which comprises a base, a mixing box is arranged on the base, a feeding mechanism is arranged on the mixing box, a grinding mechanism and a driving mechanism are arranged on the feeding mechanism, the grinding mechanism and the driving mechanism are both arranged on the mixing box, a stirring mechanism is arranged on the mixing box, and the stirring mechanism is arranged on the mixing box. According to the silicon-carbon composite material mixing device, through the arrangement of the structures such as the grinding roller, the feeding assembly, the feeding pipe, the rotating shaft, the limiting plate and the servo motor, when silicon-carbon composite materials need to be mixed, the silicon-carbon composite materials are ground through the grinding roller firstly, it is guaranteed that the specifications and the sizes are the same during mixing, and then the silicon-carbon composite materials are mixed; and then the feeding assembly is used for driving a material spraying cover to do reciprocating motion in the mixing box through a limiting plate, the ground materials can be conveniently and evenly sprayed out, and therefore the silicon-carbon composite materials can be fully and evenly mixed in the mixing box.

Description

Technical Field

[0001] The utility model relates to the technical field of mixing devices, in particular to a mixing device for silicon-carbon composite anode materials. Background Technique

[0002] Silicon-carbon composite anode material is a composite material based on silicon and carbon, mainly used for the anode of lithium-ion batteries to improve the energy density and performance of the batteries. The silicon-carbon anode material is doped with silicon materials and carbon materials with different structures to improve the capacity and electrochemical performance of the anode material. The silicon-carbon anode material is regarded as an important development direction for the next generation of high-performance lithium-ion battery anode materials. With the continuous expansion of the new energy vehicle and digital electronic product markets, higher requirements are put forward for the endurance and charging speed of lithium-ion batteries. The silicon-carbon anode material has attracted much attention due to its high specific capacity and high energy density. As a new anode material with broad application prospects, the silicon-carbon composite anode material is gradually moving towards industrial application. With the continuous progress of technology and the reduction of costs, the silicon-carbon anode material is expected to occupy an important position in the future lithium-ion battery market.

[0003] In the prior art, when mixing the silicon-carbon composite anode material, the silicon-carbon composite anode material is directly added into the mixing tank from a fixed adding position for stirring and mixing. However, this adding method will cause the silicon-carbon composite anode material not to be fully mixed.

[0004] Therefore, a mixing device for silicon-carbon composite anode materials is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to provide a mixing device for silicon-carbon composite anode materials to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A mixing device for silicon-carbon composite anode materials, including a base, a mixing tank is installed on the base, a feeding mechanism is arranged on the mixing tank, a grinding mechanism and a driving structure are installed on the feeding mechanism, both the grinding mechanism and the driving mechanism are installed on the mixing tank, a stirring mechanism is installed on the mixing tank, and the stirring mechanism is installed on the driving mechanism. The feeding mechanism includes a feeding tank, the feeding tank is installed on the mixing tank, a feeding component is installed on one side of the feeding tank, a feeding pipe is installed on the feeding component, and a spraying hood is installed on the bottom side of the feeding pipe, and the spraying hood is installed inside the mixing tank;

[0007] The stirring mechanism includes a transmission shaft, the transmission shaft is rotatably installed on the mixing tank, and a plurality of stirring rods are annularly and equidistantly installed on the transmission shaft, and the plurality of annularly and equidistantly arranged stirring rods are all rotatably installed inside the mixing tank.

[0008] Preferably, the driving mechanism includes a rotating shaft rotatably mounted on the mixing tank. An elliptical groove is formed on the rotating shaft. A movable shaft is slidably mounted on the inner wall of the elliptical groove. A sliding block is mounted on the movable shaft. A limiting plate is mounted on the sliding block and sleeved on the feeding pipe.

[0009] Preferably, a mounting frame is mounted on one side of the mixing tank. A servo motor is mounted on the mounting frame. A driving shaft is mounted on the servo motor and installed at one end of the rotating shaft.

[0010] Preferably, a retaining plate is mounted on the inner wall of the mixing tank. The sliding block is slidably mounted on the retaining plate.

[0011] Preferably, the grinding mechanism includes two grinding rollers, both of which are rotatably mounted on the inner wall of the feeding tank. Gears are mounted on both of the grinding rollers, and the two gears are meshed with each other.

[0012] Preferably, a rotating shaft is mounted at one end of the rotating shaft. A first transmission component is sleeved on the rotating shaft. The other end of the first transmission component is sleeved with a rotating shaft, and the rotating shaft is installed at one end of one of the grinding rollers.

[0013] Preferably, a second transmission component is sleeved on one end of the transmission shaft, and the other end of the second transmission component is sleeved on the driving shaft.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] (1) In the present utility model, through the arrangement of structures such as grinding rollers, feeding components, feeding pipes, rotating shafts, limiting plates, and servo motors, when it is necessary to mix silicon-carbon composite materials, first use the grinding rollers to grind the silicon-carbon composite materials to ensure that the specifications and sizes are the same during mixing. Then use the feeding components to drive the spraying cover to reciprocate in the mixing tank by means of the limiting plate, so that the materials can be conveniently and evenly sprayed out, thereby facilitating the full and uniform mixing of the silicon-carbon composite materials in the mixing tank.

[0016] (2) In the present utility model, through the arrangement of structures such as servo motors, driving shafts, second transmission components, transmission shafts, and stirring rods, the servo motor is used to drive the driving shaft to rotate. The driving shaft drives the stirring rods on the transmission shaft to rotate horizontally in the mixing tank, so as to ensure that the silicon-carbon composite materials can be fully and evenly mixed. It not only has a simple structure, but also only uses one servo motor for driving, which can effectively save production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the main structure of the present utility model;

[0018] Figure 2 is a schematic side view structure diagram of the present utility model;

[0019] Figure 3 Schematic diagram of the internal structures of the mixing tank and the feeding tank of the present utility model;

[0020] Figure 4 Schematic diagram of the connection structure of the feeding pipe, the rotating shaft and the retaining plate of the present utility model;

[0021] In the figure: 1, base; 2, mixing tank; 3, feeding tank; 31, feeding assembly; 32, feeding pipe; 33, spraying hood; 4, rotating shaft; 41, elliptical groove; 42, movable shaft; 43, sliding block; 44, limiting plate; 45, retaining plate; 46, driving shaft; 47, servo motor; 48, mounting bracket; 5, grinding roller; 51, rotating shaft; 52, first transmission assembly; 53, rotating shaft; 54, gear; 6, transmission shaft; 61, stirring rod; 62, second transmission assembly. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Embodiment 1: Please refer to Figures 1-4 , the present utility model provides a technical solution: a silicon-carbon composite anode material mixing device, including a base 1, a mixing tank 2 is installed on the base 1, a feeding mechanism is provided on the mixing tank 2, a grinding mechanism and a driving structure are installed on the feeding mechanism, both the grinding mechanism and the driving mechanism are installed on the mixing tank 2, a stirring mechanism is installed on the mixing tank 2, the stirring mechanism is installed on the driving mechanism, the feeding mechanism includes a feeding tank 3, the feeding tank 3 is installed on the mixing tank 2, a feeding assembly 31 is installed on one side of the feeding tank 3, a feeding pipe 32 is installed on the feeding assembly 31, a spraying hood 33 is installed on the bottom side of the feeding pipe 32, the spraying hood 33 is installed inside the mixing tank 2. By using the feeding assembly 31, the materials with the same specifications and sizes in the feeding tank 3 after being fully ground can be conveniently discharged into the mixing tank 2 through the spraying hood 33 on the feeding pipe 32, so as to ensure uniform mixing.

[0024] In order to facilitate the addition of the silicon-carbon composite anode material from different positions, a driving mechanism is arranged, which specifically includes a rotating shaft 4. The rotating shaft 4 is rotatably installed on the mixing tank 2. An elliptical groove 41 is formed on the rotating shaft 4. A movable shaft 42 is slidably installed on the inner wall of the elliptical groove 41. A sliding block 43 is installed on the movable shaft 42. A limiting plate 44 is installed on the sliding block 43. The limiting plate 44 is sleeved on the feeding pipe 32. An installation frame 48 is installed on one side of the mixing tank 2. A servo motor 47 is installed on the installation frame 48. A driving shaft 46 is installed on the servo motor 47. The driving shaft 46 is installed at one end of the rotating shaft 4. A retaining plate 45 is installed on the inner wall of the mixing tank 2. The sliding block 43 is slidably installed on the retaining plate 45. The servo motor 47 is used to drive the driving shaft 46 to rotate. The driving shaft 46 drives the rotating shaft 4 in the mixing tank 2 to rotate. The rotating shaft 4 drives the elliptical groove 41 to rotate. The elliptical groove 41 drives the movable shaft 42 to make a reciprocating motion in the mixing tank 2. The movable shaft 42 drives the sliding block 43 on the retaining plate 45 to move. The sliding block 43 drives the spraying hood 33 on the limiting plate 44 to make a reciprocating motion in the mixing tank 2, so as to facilitate the input of the silicon-carbon composite anode material from different positions, and then ensure full and uniform mixing.

[0025] In order to ensure that the specifications of the silicon-carbon composite anode material put into the mixing tank 2 are consistent, a grinding mechanism is arranged, which specifically includes two grinding rollers 5. Both grinding rollers 5 are rotatably installed on the inner wall of the feeding tank 3. Gears 54 are installed on both grinding rollers 5. The two gears 54 are meshed with each other. A rotating shaft 51 is installed at one end of the rotating shaft 4. A first transmission component 52 is sleeved on the rotating shaft 51. The other end of the first transmission component 52 is sleeved with a rotating shaft 53. The rotating shaft 53 is installed at one end of one of the grinding rollers 5. The rotating shaft 4 is used to drive the rotating shaft 51 to rotate. The rotating shaft 51 drives the first transmission component 52 to rotate. The first transmission component 52 drives the rotating shaft 53 to rotate. The rotating shaft 53 drives the gears 54 to rotate meshingly. The gears 54 drive the two grinding rollers 5 to rotate towards each other, so as to quickly grind the materials put into the feeding tank 3 conveniently.

[0026] Embodiment 2: On the basis of Embodiment 1, in order to facilitate the full mixing of the silicon-carbon composite anode material at any position in the mixing tank 2, a stirring mechanism is arranged, which specifically includes a transmission shaft 6. The transmission shaft 6 is rotatably installed on the mixing tank 2. A plurality of stirring rods 61 are annularly and equidistantly installed on the transmission shaft 6. The plurality of annularly and equidistantly arranged stirring rods 61 are all rotatably installed in the mixing tank 2. A second transmission component 62 is sleeved on one end of the transmission shaft 6. The other end of the second transmission component 62 is sleeved on the drive shaft 46. The drive shaft 46 is used to drive the second transmission component 62 to rotate. The second transmission component 62 drives the transmission shaft 6 on the mixing tank 2 to rotate. The transmission shaft 6 drives the stirring rods 61 to rotate horizontally in the mixing tank 2, so that the silicon-carbon composite anode material input from different positions can be fully mixed conveniently. The rest of the features are the same as those in Embodiment 1.

[0027] The working principle is as follows: When mixing the silicon-carbon composite anode material, first add the silicon-carbon composite anode material into the feeding tank 3. At this time, turn on the switch of the servo motor 47 on the mounting frame 48. The servo motor 47 is used to drive the drive shaft 46 to rotate. The drive shaft 46 drives the rotating shaft 4 in the mixing tank 2 to rotate. The rotating shaft 4 drives the elliptical groove 41 to rotate. The elliptical groove 41 drives the movable shaft 42 to make a reciprocating motion in the mixing tank 2. The movable shaft 42 drives the sliding block 43 on the retaining plate 45 to move. The sliding block 43 drives the spraying hood 33 on the limiting plate 44 to make a reciprocating motion in the mixing tank 2. At the same time, the rotating shaft 4 is used to drive the rotating shaft 51 to rotate. The rotating shaft 51 drives the first transmission component 52 to rotate. The first transmission component 52 drives the rotating shaft 53 to rotate. The rotating shaft 53 drives the gear 54 to rotate meshingly. The gear 54 drives the two grinding rollers 5 to rotate towards each other, so that the materials put into the feeding tank 3 can be quickly ground conveniently. At the same time, turn on the switch of the feeding component 31. The materials with the same specification size in the feeding tank 3 after being fully ground can be conveniently discharged into the mixing tank 2 through the spraying hood 33 on the feeding pipe 32. At the same time, the drive shaft 46 is used to drive the second transmission component 62 to rotate. The second transmission component 62 drives the transmission shaft 6 on the mixing tank 2 to rotate. The transmission shaft 6 drives the stirring rods 61 to rotate in the mixing tank 2, so that the silicon-carbon composite anode material input from different positions can be fully mixed conveniently.

[0028] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A silicon-carbon composite anode material mixing device, characterized in that: It includes a base (1), a mixing tank (2) is installed on the base (1), a feeding mechanism is provided on the mixing tank (2), a grinding mechanism and a driving structure are installed on the feeding mechanism, both the grinding mechanism and the driving mechanism are installed on the mixing tank (2), a stirring mechanism is installed on the mixing tank (2), and the stirring mechanism is installed on the driving mechanism. The feeding mechanism includes a feeding box (3), the feeding box (3) is installed on the mixing tank (2), a feeding component (31) is installed on one side of the feeding box (3), a feeding pipe (32) is installed on the feeding component (31), a spraying hood (33) is installed on the bottom side of the feeding pipe (32), and the spraying hood (33) is installed inside the mixing tank (2). The stirring mechanism includes a transmission shaft (6), the transmission shaft (6) is rotatably installed on the mixing tank (2), a plurality of stirring rods (61) are annularly and equidistantly installed on the transmission shaft (6), and the plurality of annularly and equidistantly arranged stirring rods (61) are all rotatably installed inside the mixing tank (2).

2. The mixing device for a silicon-carbon composite anode material according to claim 1, wherein: The driving mechanism includes a rotating shaft (4), the rotating shaft (4) is rotatably installed on the mixing tank (2), an elliptical groove (41) is provided on the rotating shaft (4), a movable shaft (42) is slidably installed on the inner wall of the elliptical groove (41), a sliding block (43) is installed on the movable shaft (42), a limiting plate (44) is installed on the sliding block (43), and the limiting plate (44) is sleeved on the feeding pipe (32).

3. The mixing device for a silicon-carbon composite anode material according to claim 2, characterized in that: An installation frame (48) is installed on one side of the mixing tank (2), a servo motor (47) is installed on the installation frame (48), a driving shaft (46) is installed on the servo motor (47), and the driving shaft (46) is installed at one end of the rotating shaft (4).

4. A silicon-carbon composite anode material mixing device according to claim 2, characterized in that: A retaining plate (45) is installed on the inner wall of the mixing tank (2), and the sliding block (43) is slidably installed on the retaining plate (45).

5. The mixing device for a silicon-carbon composite anode material according to claim 2, characterized in that: The grinding mechanism includes two grinding rollers (5), both of the two grinding rollers (5) are rotatably installed on the inner wall of the feeding box (3), gears (54) are installed on both of the two grinding rollers (5), and the two gears (54) are meshed with each other.

6. The mixing device for a silicon-carbon composite anode material according to claim 5, characterized in that: A rotating shaft (51) is installed at one end of the rotating shaft (4), a first transmission component (52) is sleeved on the rotating shaft (51), a rotating shaft (53) is sleeved on the other end of the first transmission component (52), and the rotating shaft (53) is installed at one end of one of the grinding rollers (5).

7. A silicon-carbon composite anode material mixing device according to claim 3, characterized in that: A second transmission component (62) is sleeved on one end of the transmission shaft (6), and the other end of the second transmission component (62) is sleeved on the driving shaft (46).

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