Dry mixing device for production of negative electrode additive of lead-acid storage battery

Abstract

The utility model relates to the field of lead -acid battery, concretely is dry mixing arrangement for lead -acid battery negative electrode additive production. Its whole installation support is carried out through frame, the support block is rotationally arranged on the frame, and the support block rotates clockwise or counterclockwise, the main cylinder is rotationally arranged on the support block horizontally, and the side, away from the support block of main cylinder, is the discharge end and sets up the closing plate to close, a plurality of branch cylinders are connected on the main cylinder peripheral wall through elastic member, and the end, away from the main cylinder of branch cylinder, is closed, and the discharge mechanism that drives a plurality of branch cylinders to be inclined is arranged on the support block, under dry mixing state, branch cylinder distributes along the radial direction of main cylinder, under the discharge state, main cylinder overturns to vertical state and branch cylinder leans towards the up. In the utility model, the inside of main cylinder is not set up stirring structure, but is through the movement of material between main cylinder and branch cylinder to complete mixing, neither will material be damaged due to serious mechanical stress, guarantees the final quality of battery, and can mix material fully.

Description

Technical Field

[0001] This utility model relates to the field of lead-acid batteries, and in particular to a dry mixing device for producing negative electrode additives for lead-acid batteries. Background Technology

[0002] Dry mixing equipment is widely used in the production process of negative electrode additives for lead-acid batteries, mainly for mixing raw materials such as graphite, carbon materials, and conductive agents. Through the dry mixing process, the uniformity and consistency of the negative electrode materials can be ensured, thereby improving the capacity, cycle life, and safety of lead-acid batteries.

[0003] Chinese Patent CN214389857U discloses a dry mixing device for preparing lead-acid battery negative electrode additives. The device comprises a base plate with a first vertical plate, a second vertical plate, and a positioning plate fixed to the top. The second vertical plate is located between the first and positioning plates. A top plate is fixed between the tops of the first and second vertical plates. A horizontally arranged rotating shaft is rotatably mounted on one side of each vertical plate. A mixing tank is fixed between the two rotating shafts. A stirring shaft is rotatably mounted inside the mixing tank, and multiple stirring rods are mounted on the stirring shaft. A feed pipe is installed at the top of the mixing tank, and a feed hopper is installed at the top of the feed pipe. Push rod motors are installed on both sides of the feed hopper. This invention enables electrically powered material addition, facilitating convenient feeding, saving labor, and achieving efficient material mixing and agitation. It also achieves high mixing uniformity and improves production quality.

[0004] However, the above-mentioned publicly disclosed solutions have the following shortcomings: the internal stirring blades can easily damage the negative electrode material of the battery. This is because the stirring blades will generate shear force, impact force and friction force on the raw material particles during the rotation process. These mechanical stresses may cause problems such as breakage, deformation, surface damage and local overheating of the raw material particles, which will ultimately affect the battery quality. Utility Model Content

[0005] The purpose of this invention is to address the problem in the prior art that the mechanical stress generated by the stirring blades can easily damage the negative electrode raw materials of batteries, thereby affecting the final battery quality. The invention proposes a dry mixing device for the production of negative electrode additives for lead-acid batteries.

[0006] The technical solution of this utility model is as follows: A dry mixing device for producing negative electrode additives for lead-acid batteries is installed and supported by a frame. A support block is rotatably mounted on the frame. The support block rotates clockwise or counterclockwise. A main cylinder is rotatably mounted horizontally on the support block. The side of the main cylinder away from the support block is the discharge end and is sealed with a sealing plate. Multiple branch cylinders are connected to the peripheral wall of the main cylinder by elastic elements. The ends of the branch cylinders away from the main cylinder are sealed. A discharge mechanism that drives the multiple branch cylinders to tilt is provided on the support block. In the dry mixing state, the branch cylinders are radially distributed along the main cylinder. In the discharge state, the main cylinder is flipped to a vertical state and the branch cylinders tilt upwards.

[0007] Preferably, a rotating column is horizontally arranged on the support block, with both ends of the rotating column rotatably connected to the frame. A rotating ring a is arranged on the support block, and the rotating ring a is coaxial with and rotatably connected to the main cylinder.

[0008] Preferably, a driven gear a is provided on the rotating column, a motor a is provided on the frame, and a driving gear a is provided on the output shaft of the motor a, and the driving gear a meshes with the driven gear a.

[0009] Preferably, a flat plate is provided on the support block, a vertical telescopic device is vertically provided on the frame, a pressure plate is slidably provided on the frame along the vertical direction, the pressure plate presses on the flat plate, and the bottom telescopic end of the vertical telescopic device is connected to the pressure plate.

[0010] Preferably, a driving gear b is provided on the outer wall of the main cylinder, a motor mounting bracket is provided on the support block, a motor b is provided on the motor mounting bracket, a driving gear b is provided on the output shaft of the motor b, and the driving gear b meshes with the driven gear b.

[0011] Preferably, the inner circumferential wall of the main cylinder is set as a conical surface. The closer the conical surface is to the branch cylinder, the larger the diameter of its vertical cross-section circle. Two conical surfaces are set, and the two conical surfaces are symmetrical about the vertical bisecting surface of the main cylinder.

[0012] Preferably, the discharge mechanism includes a horizontal telescopic device horizontally arranged on the support block, an adjusting ring arranged at the end of the horizontal telescopic device and sleeved on the outside of the main cylinder, a rotating ring b rotatably arranged on the adjusting ring, and a binding strap arranged on the rotating ring b and wrapped around the branch cylinder.

[0013] Compared with the prior art, the present invention has the following beneficial technical effects: the main cylinder does not have a stirring structure inside, but the mixing is completed by the continuous movement of materials between the main cylinder and the branch cylinder. This not only prevents the materials from being damaged due to severe mechanical stress, thus ensuring the final quality of the battery, but also fully mixes the materials. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model; Figure 2 for Figure 1 A structural diagram from another perspective; Figure 3 for Figure 1 A schematic diagram of the structure after removing the sealing plate.

[0015] Reference numerals: 1. Frame; 2. Rotating column; 3. Support block; 4. Driven gear a; 5. Driving gear a; 6. Motor a; 7. Main cylinder; 8. Branch cylinder; 9. Elastic element; 10. Sealing plate; 11. Spring buckle; 12. Conical surface; 13. Rotating ring a; 14. Driven gear b; 15. Driving gear b; 16. Motor b; 17. Adjusting ring; 18. Rotating ring b; 19. Binding strap; 20. Lateral telescopic device; 21. Vertical telescopic device; 22. Pressure plate; 23. Flat plate. Detailed Implementation

[0016] Example 1 like Figures 1-2 As shown, the dry mixing device for producing negative electrode additives for lead-acid batteries proposed in this utility model is installed and supported by a frame 1. A support block 3 is rotatably mounted on the frame 1. The support block 3 can rotate clockwise or counterclockwise. A main cylinder 7 is horizontally and rotatably mounted on the support block 3. The side of the main cylinder 7 away from the support block 3 is the discharge end and is sealed with a sealing plate 10. A sealing layer is provided on the side of the sealing plate 10 that contacts the main cylinder 7 to improve the sealing effect. The sealing plate 10 and the main cylinder 7 are connected by multiple spring clips 11. Multiple branch cylinders 8 are connected to the peripheral wall of the main cylinder 7 by elastic elements 9. The end of the branch cylinder 8 away from the main cylinder 7 is closed. A discharge mechanism is provided on the support block 3 to drive the multiple branch cylinders 8 to tilt. In the dry mixing state, the branch cylinders 8 are radially distributed along the main cylinder 7. In the discharge state, the main cylinder 7 is flipped to a vertical state and the branch cylinders 8 are tilted upward. In this embodiment, there are three branch cylinders 8, which are evenly distributed in the circumferential direction with the axis of the main cylinder 7 as the center.

[0017] Example 2 like Figures 1-2 As shown, the dry mixing device for producing negative electrode additives for lead-acid batteries proposed in this utility model, compared with Embodiment 1, details the rotating connection structure between the support block 3 and the frame 1.

[0018] A rotating column 2 is horizontally mounted on the support block 3. Both ends of the rotating column 2 are rotatably connected to the frame 1. For example, if the frame 1 has two bearing seats, the two ends of the rotating column 2 are rotatably connected to the two bearing seats. A rotating ring a13 is mounted on the support block 3, coaxial with and rotatably connected to the main cylinder 7. A driven gear a4 is mounted on the rotating column 2, and a motor a6 is mounted on the frame 1. A driving gear a5 is mounted on the output shaft of the motor a6, meshing with the driven gear a4. The motor a6 drives the driving gear a5 to rotate, which in turn drives the driven gear a4 to rotate, thus causing the rotating column 2 and support block 3 to flip downwards for material discharge. Of course, the sealing plate 10 needs to be opened before discharge. In one optional embodiment, the driving gear a5 rotates at a higher speed than the driven gear a4. This can be achieved by adjusting the driving gear a5 and the driven gear a4, thereby improving stability by reducing the speed.

[0019] Furthermore, a flat plate 23 is provided on the support block 3, a vertical telescopic device 21 is vertically provided on the frame 1, and a pressure plate 22 is slidably provided on the frame 1 along the vertical direction. The pressure plate 22 presses on the flat plate 23. The bottom telescopic end of the vertical telescopic device 21 is connected to the pressure plate 22. In an optional embodiment, the vertical telescopic device 21 is a cylinder or a hydraulic cylinder. A vertical groove is provided on the frame 1, and a slider that cooperates with the groove is provided on the pressure plate 22. The stability of the support block 3 under dry mixing working state is improved by pressing the flat plate 23 down by the pressure plate 22. Together with the motor a6, the stability of the support block 3 and the main cylinder 7 under dry mixing working state is maintained.

[0020] Example 3 like Figure 2 and Figure 3 As shown, the dry mixing device for producing lead-acid battery negative electrode additives proposed in this utility model, compared with Embodiment 2, details the rotating structure of the main cylinder 7.

[0021] A driving gear b14 is provided on the outer wall of the main cylinder 7. A motor mounting bracket is provided on the support block 3. A motor b16 is provided on the motor mounting bracket. A driving gear b15 is provided on the output shaft of the motor b16. The driving gear b15 meshes with the driven gear b14. The motor b16 drives the driving gear b15 to rotate, and the driving gear b15 then drives the driven gear b14 to rotate, thereby driving the main cylinder 7 to rotate. During the rotation of the main cylinder 7, the material continuously enters and exits the branch cylinder 8 to complete the thorough mixing. In an optional embodiment, the rotation speed of the driving gear b15 is ten times the rotation speed of the driven gear b14.

[0022] Furthermore, the inner circumferential wall of the main cylinder 7 is set as a conical surface 12. The closer the conical surface is to the branch cylinder 8, the larger the diameter of its vertical cross-section circle, which helps the material to concentrate in the middle of the main cylinder 7 and enter the branch cylinder 8, thereby improving the mixing effect. Two conical surfaces 12 are provided, and the two conical surfaces 12 are symmetrical about the vertical bisecting surface of the main cylinder 7.

[0023] Example 4 like Figure 2 As shown, the dry mixing device for producing lead-acid battery negative electrode additives proposed in this utility model, compared with Embodiment 1, details the structure of the discharge mechanism.

[0024] The discharge mechanism includes a horizontal telescopic device 20 horizontally mounted on the support block 3, an adjusting ring 17 mounted at the end of the telescopic device 20 and sleeved on the outside of the main cylinder 7, a rotating ring b18 rotatably mounted on the adjusting ring 17, and a strap 19 mounted on the rotating ring b18 and wrapped around the branch cylinder 8. Specifically, the adjusting ring 17 is located between the branch cylinder 8 and the support block 3, and multiple guide rods are horizontally mounted on the adjusting ring 17. The support block 3 is equipped with a fixing plate, and the fixing plate is equipped with guide holes that cooperate with the guide rods, thereby improving the stability of the adjusting ring 17. The telescopic device 20 is a cylinder or a hydraulic cylinder. When the telescopic device 20 retracts, it drives the branch cylinder 8 to tilt backward through the adjusting ring 17, the rotating ring b18, and the strap 19. When the main cylinder 7 rotates to a vertical position for discharge, the branch cylinder 8 is tilted upward, which facilitates the discharge of material in the branch cylinder 8. In the dry mixing working state, the telescopic device 20 extends to make the branch cylinder 8 radially distributed along the main cylinder 7.

[0025] Additional information: A control system is installed on the frame 1, and the control system is connected to motor a6, motor b16, lateral telescopic device 20 and vertical telescopic device 21.

[0026] In summary, when using this invention, the sealing plate 10 is opened, various raw materials are placed into the main cylinder 7, and then the sealing plate 10 is closed. The motor b16 is started, driving the main cylinder 7 to rotate via the driving gear b15 and the driven gear b14. As the main cylinder 7 rotates, the branch cylinders 8 are radially distributed along the main cylinder 7, and materials continuously enter the branch cylinders 8 and fall back into the main cylinder 7, completing the thorough mixing of materials. After dry mixing is completed, the motor b16 stops working, the lateral telescopic device 20 retracts, causing the branch cylinders 8 to tilt backward, and then the motor a6 operates to rotate the main cylinder 7 downward by ninety degrees to a vertical position. At this time, the sealing plate 10 is opened to discharge the material. In this invention, the main cylinder 7 does not have a stirring structure inside; instead, mixing is completed by the continuous movement of materials between the main cylinder 7 and the branch cylinders 8. This avoids damage to the materials due to severe mechanical stress, ensuring the final quality of the battery, and also ensures thorough mixing of materials.

[0027] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A dry mixing device for producing negative electrode additives for lead-acid batteries, the entire device being mounted and supported by a frame (1); characterized in that, A support block (3) is rotatably mounted on the frame (1). The support block (3) rotates clockwise or counterclockwise. A main cylinder (7) is rotatably mounted on the support block (3). The side of the main cylinder (7) away from the support block (3) is the discharge end and is sealed with a sealing plate (10). Multiple branch cylinders (8) are connected to the periphery of the main cylinder (7) by elastic elements (9). The end of the branch cylinder (8) away from the main cylinder (7) is sealed. A discharge mechanism that drives multiple branch cylinders (8) to tilt is provided on the support block (3). In the dry mixing state, the branch cylinders (8) are radially distributed along the main cylinder (7). In the discharge state, the main cylinder (7) is flipped to a vertical state and the branch cylinders (8) tilt upwards.

2. The dry mixing apparatus for producing lead-acid battery negative electrode additives according to claim 1, characterized in that, A rotating column (2) is horizontally set on the support block (3). The two ends of the rotating column (2) are rotatably connected to the frame (1). A rotating ring a (13) is set on the support block (3). The rotating ring a (13) is coaxial with the main cylinder (7) and rotatably connected.

3. The dry mixing apparatus for producing lead-acid battery negative electrode additives according to claim 2, characterized in that, A driven gear a (4) is provided on the rotating column (2), a motor a (6) is provided on the frame (1), and a driving gear a (5) is provided on the output shaft of the motor a (6). The driving gear a (5) meshes with the driven gear a (4).

4. The dry mixing apparatus for producing lead-acid battery negative electrode additives according to claim 2 or 3, characterized in that, A flat plate (23) is set on the support block (3), a vertical telescopic device (21) is set vertically on the frame (1), and a pressure plate (22) is slidably set on the frame (1) along the vertical direction. The pressure plate (22) presses on the flat plate (23), and the bottom telescopic end of the vertical telescopic device (21) is connected to the pressure plate (22).

5. The dry mixing apparatus for producing lead-acid battery negative electrode additives according to claim 1, characterized in that, A main and driven gear b (14) is provided on the outer wall of the main cylinder (7), a motor mounting bracket is provided on the support block (3), a motor b (16) is provided on the motor mounting bracket, a drive gear b (15) is provided on the output shaft of the motor b (16), and the drive gear b (15) meshes with the driven gear b (14).

6. The dry mixing apparatus for producing lead-acid battery negative electrode additives according to claim 1, characterized in that, The inner circumferential wall of the main cylinder (7) is set as a conical surface (12). The closer the conical surface is to the branch cylinder (8), the larger the diameter of its vertical cross-section circle. Two conical surfaces (12) are set, and the two conical surfaces (12) are symmetrical about the vertical bisecting surface of the main cylinder (7).

7. The dry mixing apparatus for producing lead-acid battery negative electrode additives according to claim 1, characterized in that, The discharge mechanism includes a horizontal telescopic device (20) horizontally mounted on the support block (3), an adjusting ring (17) mounted at the end of the horizontal telescopic device (20) and sleeved on the outside of the main cylinder (7), a rotating ring b (18) rotatably mounted on the adjusting ring (17), and a strap (19) mounted on the rotating ring b (18) and wrapped around the branch cylinder (8).

Images