Novel feeding device for dry-method electrode composite production line

Abstract

The utility model relates to the technical field of electrode production lines, in particular to a novel dry method electrode composite production line feeding device which comprises a base and a feeding mechanism, a movable plate is arranged on the base in a sliding mode and fixedly connected with the feeding mechanism, organ shields are connected to the two sides of the feeding mechanism respectively, and the organ shields are connected with the movable plate. A mounting cavity is formed in the base, a driving structure is arranged in the mounting cavity, a sliding groove is formed in the upper end of the mounting cavity, and a connecting block in power connection with the driving structure is fixedly arranged on the moving plate; the driving structure comprises a motor, an output shaft of the motor is fixedly connected with a lead screw, a nut seat in threaded connection with the lead screw is fixedly arranged in the connecting block, the driving structure is arranged to drive the moving plate and the feeding mechanism to shake in a reciprocating mode, raw materials in the hopper are evenly shaken, and therefore the ingredients of the materials output by the feeding mechanism are even; and the quality of battery pole pieces produced by the production line is improved.

Description

Technical Field

[0001] This utility model relates to the field of electrode production line technology, and in particular to a novel feeding device for a dry electrode composite production line. Background Technology

[0002] With the emergence of the 4680 full-tab cylindrical battery, dry electrode technology has been brought into the public eye. As one of the core potential technologies of the 4680 cylindrical battery, dry electrode technology is ranked alongside full-tab, high-nickel and high-silicon, and CTC integration technology as one of the four major innovative technologies of the 46 series. Dry electrode technology has unparalleled advantages over wet process technology in reducing battery costs and improving battery performance, and is considered the ideal process for semi-solid-state, all-solid-state, and 46 series cylindrical batteries.

[0003] Dry electrode technology refers to mixing active materials, binders, and conductive additives together using physical or chemical methods to form a final powder mixture. This powder mixture is then extruded and calendered to form a continuous, self-supporting dry-coated electrode film. The electrode film can also be wound into rolls. By adjusting the processing conditions of the thin-coated electrode film, the material loading and coating thickness can be controlled, resulting in various dry-coated electrode structures. Finally, the thin electrode layer is pressed together with a current collector to form a battery electrode.

[0004] This dry electrode process has the advantages of simple process, thicker electrode, and no solubility. For example, Chinese Patent Publication No. CN219066843U discloses "a dry electrode film preparation device, a dry electrode preparation system and a battery production line". The material handling mechanism first performs intensive mixing of the mixed electrode raw materials, and then the feeding mechanism transports the intensively mixed electrode raw materials to the rolling mechanism. The rolling mechanism rolls the intensively mixed electrode raw materials into an electrode film. In the process of processing the electrode raw materials, it is not necessary to directly extrude the electrode raw materials. This can effectively avoid the phenomenon that the electrode raw materials cannot be extruded smoothly due to the lack of high temperature rheological properties, which leads to blockage and hardening during the extrusion process.

[0005] However, in actual use, the raw materials in the feed cylinder tend to accumulate, affecting the uniformity of the raw materials and greatly impacting the quality of the battery electrodes, making it easy to produce defective products. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of existing technologies, such as the easy accumulation of raw materials in the feed cylinder, which affects the uniformity of the raw materials, the quality of battery electrodes, and the easy production of defective products. Therefore, a novel feeding device for a dry electrode composite production line is proposed.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A novel feeding device for a dry electrode composite production line is designed, including a base and a feeding mechanism. A movable plate is slidably mounted on the base and is fixedly connected to the feeding mechanism. Bellows covers are connected to both sides of the feeding mechanism, and the other end of the bellows covers is fixedly connected to the base.

[0009] The base has an installation cavity, the installation cavity has a drive structure, the upper end of the installation cavity has a sliding groove, and the moving plate has a connecting block that is poweredly connected to the drive structure.

[0010] The drive structure includes a motor, the output shaft of which is fixedly connected to a lead screw, and a nut seat that is threadedly connected to the lead screw is fixedly provided inside the connecting block.

[0011] Furthermore, the output shaft of the motor is connected to the lead screw via a coupling, and a lead screw cover is fixedly installed inside the mounting cavity. The lead screw cover has insertion holes corresponding to the lead screw.

[0012] Furthermore, bearing seats are provided in both the lead screw cover and the insertion hole, and the lead screw is rotatably connected to the two bearing seats.

[0013] Furthermore, the feeding mechanism includes a power unit, a hopper, and a discharge port, and the lower end of the hopper is provided with a conveying mechanism that cooperates with the discharge port.

[0014] Furthermore, the conveying mechanism includes a conveying pipe, in which auger blades are rotatably disposed; the feed end at the upper end of the conveying pipe is connected to the output end of the hopper; and the output end of the conveying pipe is connected to the discharge port.

[0015] Furthermore, the power assembly includes a drive unit and a gearbox, and a stirring assembly is provided inside the hopper. Both the stirring assembly and the auger blades are poweredly connected to the gearbox.

[0016] Furthermore, the gearbox is provided with a gear transmission structure, and the gearbox is also provided with a first transmission shaft and a second transmission shaft. The first transmission shaft is poweredly connected to the output end of the drive device, and the first transmission shaft is poweredly connected to the auger blade and the second transmission shaft. The second transmission shaft is poweredly connected to the stirring assembly.

[0017] Furthermore, a spherical hopper is provided at the lower end of the hopper, and the hopper and the spherical hopper are connected by a clamp, with the stirring assembly disposed inside the spherical hopper.

[0018] The novel feeding device for a dry electrode composite production line proposed in this utility model has the following advantages:

[0019] In this utility model, by setting a driving structure to drive the moving plate and the feeding mechanism to reciprocate and shake, the raw materials in the hopper are shaken evenly, thereby making the material output by the feeding mechanism uniform in composition and improving the quality of the battery electrode sheets produced by the production line.

[0020] Secondly, in this invention, the drive device is powered by the auger blades via a gearbox, providing power to the conveying mechanism. At the same time, the drive device is also powered by the stirring assembly via the gearbox, enabling the stirring assembly to mix and stir the raw materials inside the spherical hopper, making the raw materials more uniform. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a novel dry electrode composite production line feeding device proposed in this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the base of this utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the hopper of this utility model;

[0024] Figure 4 This is a schematic diagram of the material outlet of this utility model.

[0025] In the diagram: 1. Base; 11. Mounting cavity; 12. Slide groove; 2. Feeding mechanism; 21. Power assembly; 211. Drive unit; 212. Gearbox; 2121. Gear transmission structure; 2122. First drive shaft; 2123. Second drive shaft; 22. Hopper; 221. Spherical hopper; 23. Discharge port; 24. Conveying mechanism; 241. Conveying pipe; 242. Screw blade; 25. Mixing assembly; 3. Moving plate; 31. Connecting block; 4. Drive structure; 41. Motor; 42. Lead screw; 43. Nut seat; 44. Coupling; 45. Lead screw cover; 46. Bearing seat. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Reference Figure 1-4 A novel dry electrode composite production line feeding device includes a base 1 and a feeding mechanism 2. A movable plate 3 is slidably arranged on the base 1 and is fixedly connected to the feeding mechanism 2. Both sides of the feeding mechanism 2 are connected to bellows covers, and the other end of the bellows covers is fixedly connected to the base 1.

[0028] The base 1 has an installation cavity 11, the installation cavity 11 has a drive structure 4, the upper end of the installation cavity 11 has a sliding groove 12, and the moving plate 3 has a connecting block 31 that is poweredly connected to the drive structure 4.

[0029] The drive structure 4 includes a motor 41, the output shaft of the motor 41 is fixedly connected to a lead screw 42, and a nut seat 43 that is threadedly connected to the lead screw 42 is fixedly provided in the connecting block 31.

[0030] By setting the motor 41 to drive the lead screw 42 to rotate, the lead screw 42 drives the nut seat 43 and the connecting block 31 to move, thereby driving the moving plate 3 and the feeding mechanism 2 to reciprocate and shake, so that the raw materials in the feeding mechanism 2 are shaken evenly, thereby making the material output by the feeding mechanism 2 uniform in composition and improving the quality of the battery electrode sheets produced by the production line. By setting the bellows cover, it is prevented that foreign objects enter the mounting cavity 11 and affect the operation of the drive structure 4.

[0031] Furthermore, in this embodiment, the output shaft of the motor 41 is connected to the lead screw 42 via a coupling 44. The coupling 44 is a screw-fixed type plum blossom coupling. A lead screw cover 45 is fixedly installed in the mounting cavity 11. The lead screw cover 45 is provided with a corresponding insertion hole for the lead screw 42. The lead screw 42 passes through the insertion hole and is threadedly connected to the nut seat 43. A sliding groove 12 is also provided on the lead screw cover 45.

[0032] In this embodiment, bearing seats 46 are provided in both the lead screw cover 45 and the insertion hole. The lead screw 42 is rotatably connected to the two bearing seats 46. The two bearing seats 46 support the lead screw and prevent the lead screw 42 from deforming due to excessive force.

[0033] Furthermore, in this embodiment, the feeding mechanism 2 includes a power component 21, a hopper 22, and a discharge port 23. The lower end of the hopper 22 is provided with a conveying mechanism 24 that cooperates with the discharge port 23. The power component 21 provides power to the conveying mechanism 24 to transport the raw materials in the hopper 22 to the discharge port 23 for discharge.

[0034] It should be noted that, in this embodiment, the conveying mechanism 24 includes a conveying pipe 241, and an auger blade 242 is rotatably disposed inside the conveying pipe 241. The feed end of the upper end of the conveying pipe 241 is connected to the output end of the hopper 22, and the output end of the conveying pipe 241 is connected to the discharge port 23. As the auger blade 242 rotates, the raw material input from the hopper 22 is conveyed along the conveying pipe to the discharge port 23 for discharge.

[0035] Furthermore, in this embodiment, the power assembly 21 includes a drive device 211 and a gearbox 212. The hopper 22 is equipped with a stirring assembly 25. Both the stirring assembly 25 and the auger blades 242 are poweredly connected to the gearbox 212. The drive device 211 provides power to the gearbox 212 and drives the stirring assembly 25 and the auger blades 242 simultaneously through the gearbox 212. The drive device 211 consists of a servo motor and a worm gear reducer.

[0036] In detail, in this embodiment, a gear transmission structure 2121 is provided inside the gearbox 212. The gearbox 212 also provides a first transmission shaft 2122 and a second transmission shaft 2123. The first transmission shaft 2122 is poweredly connected to the output end of the drive device 211, and is poweredly connected to the auger blade 242 and the second transmission shaft 2123. The second transmission shaft 2123 is poweredly connected to the stirring assembly 25. The drive device 211 drives the first transmission shaft 2122 to rotate, and under the action of the gear transmission structure 2121, drives the second transmission shaft 2123 to rotate, thereby simultaneously driving the first transmission shaft 2122 and the second transmission shaft 2123 to rotate, and providing power to the conveying mechanism 24 and the stirring assembly 25. The gear transmission structure 2121 is a reduction gear transmission structure, which makes the second transmission shaft 2123 rotate at a lower speed than the first transmission shaft 2122.

[0037] More specifically, in this embodiment, a spherical hopper 221 is provided at the lower end of the hopper 22. The hopper 22 and the spherical hopper 221 are connected by a clamp. The stirring assembly 25 is disposed inside the spherical hopper 221. The stirring assembly 25 includes a stirring shaft that is poweredly connected to the second drive shaft 2123. The stirring shaft passes through the spherical hopper 221 and is fixedly connected with stirring blades that cooperate with the spherical hopper 221.

[0038] Working method: During operation, the motor 41 drives the lead screw 42 to rotate, the lead screw 42 drives the nut seat 43 and the connecting block 31 to move, which in turn drives the moving plate 3 and the feeding mechanism 2 to reciprocate and shake, making the raw material in the feeding mechanism 2 shake evenly, so that the material output by the feeding mechanism 2 has a uniform composition and improves the quality of the battery electrode sheets produced by the production line.

[0039] The drive device 211 drives the first drive shaft 2122 to rotate, and under the action of the gear transmission structure 2121, drives the second drive shaft 2123 to rotate, realizing the simultaneous rotation of the first drive shaft 2122 and the second drive shaft 2123, and providing power to the conveying mechanism 24 and the stirring assembly 25. As the auger blades 242 rotate, the raw materials input from the hopper 22 are conveyed along the conveying pipe to the discharge port 23 for discharge. The gear transmission structure 2121 is a reduction gear transmission structure, which makes the second drive shaft 2123 rotate at a lower speed than the first drive shaft 2122.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A novel feeding device for a dry electrode composite production line, comprising a base (1) and a feeding mechanism (2), characterized in that, A movable plate (3) is slidably disposed on the base (1). The movable plate (3) is fixedly connected to the feeding mechanism (2). Both sides of the feeding mechanism (2) are connected to accordion covers. The other end of the accordion covers is fixedly connected to the base (1). The base (1) is provided with an installation cavity (11), the installation cavity (11) is provided with a drive structure (4), the upper end of the installation cavity (11) is provided with a sliding groove (12), and the moving plate (3) is fixedly provided with a connecting block (31) that is poweredly connected to the drive structure (4). The drive structure (4) includes a motor (41), the output shaft of the motor (41) is fixedly connected to a lead screw (42), and a nut seat (43) that is threadedly connected to the lead screw (42) is fixedly provided in the connecting block (31).

2. The feeding device for a novel dry electrode composite production line according to claim 1, characterized in that: The output shaft of the motor (41) is connected to the lead screw (42) via a coupling (44). A lead screw cover (45) is fixedly installed in the mounting cavity (11), and the lead screw cover (45) is provided with a corresponding insertion hole for the lead screw (42).

3. The feeding device for a novel dry electrode composite production line according to claim 2, characterized in that: The lead screw cover (45) and the socket are both provided with bearing seats (46), and the lead screw (42) is rotatably connected to the two bearing seats (46).

4. The feeding device for a novel dry electrode composite production line according to claim 1, characterized in that: The feeding mechanism (2) includes a power unit (21), a hopper (22) and a discharge port (23). The lower end of the hopper (22) is provided with a conveying mechanism (24) that cooperates with the discharge port (23).

5. The feeding device for a novel dry electrode composite production line according to claim 4, characterized in that: The conveying mechanism (24) includes a conveying pipe (241), and an auger blade (242) is rotatably arranged inside the conveying pipe (241). The feed end of the upper end of the conveying pipe (241) is connected to the output end of the hopper (22), and the output end of the conveying pipe (241) is connected to the discharge port (23).

6. The feeding device for a novel dry electrode composite production line according to claim 5, characterized in that: The power assembly (21) includes a drive unit (211) and a gearbox (212). The hopper (22) is equipped with a stirring assembly (25). The stirring assembly (25) and the auger blades (242) are both connected to the gearbox (212).

7. The feeding device for a novel dry electrode composite production line according to claim 6, characterized in that: The gearbox (212) is provided with a gear transmission structure (2121). The gearbox (212) is also provided with a first transmission shaft (2122) and a second transmission shaft (2123). The first transmission shaft (2122) is poweredly connected to the output end of the drive device (211), and the first transmission shaft (2122) is poweredly connected to the auger blade (242) and the second transmission shaft (2123). The second transmission shaft (2123) is poweredly connected to the stirring assembly (25).

8. The feeding device for a novel dry electrode composite production line according to claim 6, characterized in that: The lower end of the hopper (22) is provided with a spherical hopper (221), and the hopper (22) and the spherical hopper (221) are connected by a clamp. The stirring assembly (25) is disposed inside the spherical hopper (221).

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