High-efficiency battery shell cleaning equipment

Abstract

The invention belongs to the technical field of battery production, and discloses high-efficiency battery shell cleaning equipment which comprises a hoisting plate, a connecting block is fixed to the bottom of the hoisting plate, a mounting frame is mounted on the connecting block, and the middle of the mounting frame is rotationally connected with the connecting block; two rotating discs are rotationally mounted on the mounting frame; a plurality of placing boxes are transversely arranged and fixed between the two rotating discs; a box opening of each placing box faces outwards; a plurality of matched placing frames for placing the battery shells are placed in each placing box; a box opening of each placing box is provided with a limiting mechanism used for sealing the box opening and limiting the placing frame; a driving source for driving the two rotating discs to rotate synchronously is mounted on the mounting frame; and a linkage mechanism which is driven by a driving source and is used for driving the mounting frame to rotate back and forth is mounted on the mounting frame. The placing frame is small in size, easy to operate and install, low in labor intensity, high in efficiency and high in productivity; and multi-angle flushing can be conducted, and the flushing quality is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of battery manufacturing technology, and in particular to a high-efficiency battery casing cleaning device. Background Technology

[0002] Cylindrical lithium battery steel casing cleaning roller technology is a batch precision cleaning technology specifically designed for cylindrical lithium battery steel casings. It is usually used in combination with related technologies to remove contaminants such as oil, metal shavings, and stamping dust remaining during the steel casing production process, ensuring battery safety and performance stability.

[0003] The automatic cleaning device for lithium battery casings, as described in announcement number CN219357183U, includes: an outer frame assembly; a rotating frame assembly, which is disposed within the outer frame assembly and includes a first support, connecting rods, a second support, a central shaft, and a driving component. Multiple connecting rods are provided, and the first support is located on one side of the second support. Multiple connecting rods are fixed to the adjacent ends of the first and second supports. The first and second supports are rotatably connected within the outer frame assembly via the central shaft. The driving component is disposed within the outer frame assembly and connected to the second support to drive its rotation. The device also includes a placement assembly, which comprises multiple sets. Each set of placement assemblies includes a cleaning box and a mounting drawer. The cleaning box is fixedly connected to the adjacent ends of the first and second supports, and the mounting drawer is slidably connected within the cleaning box.

[0004] Based on the above technical features, the technical problems are as follows: In the existing technology, the length of the installation drawer needs to be adapted to the length of the cleaning box. When the length of the cleaning box is too long, the length and volume of the installation drawer will also be larger, which will lead to increased weight, greater installation difficulty, higher labor intensity, lower efficiency and lower production capacity. At the same time, since the orientation of the battery case and the flow direction of the cleaning agent are fixed, the rinsing quality is not high, and it is not easy to remove impurities and nickel powder from the inner hole after cleaning.

[0005] Therefore, it is necessary to solve the above problems by using a high-efficiency battery casing cleaning device. Summary of the Invention

[0006] The purpose of this invention is to provide a high-efficiency battery casing cleaning device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a high-efficiency battery casing cleaning device, comprising a lifting plate, a connecting block fixedly disposed at the bottom of the lifting plate, an mounting frame mounted on the connecting block, and the middle part of the mounting frame rotatably connected to the connecting block; Two rotating disks are rotatably mounted on the mounting frame. The two rotating disks are coaxially opposite each other and their central axis is horizontal. Multiple U-shaped placement boxes are placed and fixed horizontally between the two rotating disks. Multiple placement boxes are evenly distributed along the circumference of the rotating disk, with the opening of each placement box facing outwards; each placement box contains multiple matching placement frames for placing battery cases. Each placement box is equipped with a limiting mechanism at its opening for sealing the opening and for limiting the placement frame. The mounting bracket is equipped with a drive source that drives the two rotating disks to rotate synchronously. The mounting bracket is equipped with a linkage mechanism driven by a drive source and used to drive the mounting bracket to reciprocate.

[0008] Preferably, the limiting mechanism includes a cover plate for closing the opening of the placement box, the cover plate being hinged to the placement box; multiple water-permeable holes are evenly provided on both the cover plate and the placement box; two protruding edges are fixed along the length direction inside the opening of the placement box, the two protruding edges being fixed on different inner walls of the opening of the placement box and symmetrically arranged; the two protruding edges are provided with notches at corresponding positions that communicate with the opening of the placement box and are used for the placement frame to enter and exit the placement box, the two notches matching the placement frame.

[0009] Preferably, the drive source includes a support shaft, which is horizontally positioned and rotatably mounted on a mounting bracket; two first gears are fixedly sleeved on the support shaft, and two rotating disks correspond one-to-one with the two first gears, with a ring of teeth fixed on the circumferential end of each rotating disk for meshing and transmission with the corresponding first gear.

[0010] Preferably, the linkage mechanism includes a coil; two coils are rotatably mounted on the mounting frame, and the connecting block is located between the two coils, with the two coils symmetrically arranged relative to the connecting block; each coil is wound with a pull rope, the two pull ropes are wound in opposite directions, and both pull ropes are fixedly connected to the lifting plate; the two coils correspond one-to-one with two first gears, and each coil is coaxially fixed with a second gear, each second gear meshing with the first gear corresponding to its coil.

[0011] Preferably, the pull rope is wound on the reel in the form of an Archimedean spiral, and a groove with a width matching the thickness of the pull rope is formed around the circumferential end of the reel.

[0012] Preferably, it also includes a cleaning tank for placing the mounting bracket and for cleaning the battery casing.

[0013] Preferably, the lifting plate is fixed with an overlapping shaft for lifting and resting on the cleaning pool.

[0014] Preferably, a rinsing pipe connected to an external water source is fixedly installed in the cleaning tank, and the rinsing pipe has spray holes for rinsing the inside of the battery casing.

[0015] Preferably, a spray pipe for rinsing the outside of the battery casing is fixedly installed on the inner wall of the top opening of the cleaning pool.

[0016] Preferably, a high-pressure blower for drying the battery casing is fixedly installed in the cleaning tank.

[0017] The technical effects and advantages of this invention are as follows: The placement box of this invention is filled with multiple small placement frames. The placement frames are small in size, easy to operate and install, with low labor intensity, high efficiency, and high production capacity. At the same time, the placement box can rotate with the rotating disc and swing with the mounting frame, thereby allowing the opening of the battery case to face different directions. This enables multi-angle rinsing during rinsing, effectively improving the rinsing quality. After cleaning, impurities and nickel powder in the inner hole of the battery case are easily removed. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional front view schematic diagram of the present invention; Figure 3 This is a schematic diagram of the mounting bracket of the present invention; Figure 4 This is a schematic diagram of the placement box of the present invention; Figure 5 This is an enlarged schematic diagram of point A in the present invention; Figure 6 This is a schematic diagram of the placement box of the present invention; Figure 7 This is a schematic diagram of the cleaning tank of the present invention.

[0019] In the diagram: 1. Lifting plate; 2. Overlapping shaft; 3. Connecting block; 4. Rotating shaft; 5. Connecting frame; 6. Mounting frame; 7. Support shaft; 8. First gear; 9. Connecting shaft; 10. Rotating disc; 11. Placement box; 12. Cover plate; 13. Protruding edge; 14. Notch; 15. Placement frame; 16. Second gear; 17. Cable reel; 18. Pull rope; 19. Cleaning pool; 20. Spray pipe; 21. Rinse pipe. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0021] This invention provides, for example Figures 1 to 7The high-efficiency battery casing cleaning equipment shown includes a lifting plate 1, which is made of thickened carbon steel sheet and stamped. Two horizontal overlapping shafts 2 are fixed on both the left and right sides of the lifting plate 1 for lifting by a crane. The overlapping shafts 2 on the left and right sides correspond one-to-one, and the corresponding two overlapping shafts 2 are coaxially opposite each other.

[0022] The bottom center of the lifting plate 1 is fastened to the connecting block 3 by bolts or welding. The bottom center of the connecting block 3 is fixed with an inverted U-shaped seat. A rotating shaft 4 is placed horizontally between the two far ends of the inverted U-shaped seat. The rotating shaft 4 is rotatably connected to the inverted U-shaped seat.

[0023] A connecting frame 5 is fixedly mounted on the rotating shaft 4. The connecting frame 5 consists of a U-shaped base and a movable rotating block. The rotating block is fixed at the center position of the non-far end top of the U-shaped base, and the rotating block is fixedly connected to the rotating shaft 4.

[0024] The mounting bracket 6 is fixed on the U-shaped base. The mounting bracket 6 includes a rectangular frame and two mounting plates. The two far ends of the U-shaped base correspond one-to-one with the two long ends of the rectangular frame, and the top of each of the two far ends of the U-shaped base is fixedly connected to the middle of the corresponding long end of the rectangular frame.

[0025] Two mounting plates correspond one-to-one with the two short ends of the rectangular frame, and each mounting plate is fixedly installed at the bottom of the corresponding short end of the rectangular frame. Both mounting plates are vertical and parallel to each other. A horizontal connecting shaft 9 is rotatably mounted on the adjacent end faces of the two mounting plates, and the two connecting shafts 9 are spatially perpendicular to the rotating shaft 4. The two connecting shafts 9 are coaxially opposite each other, and a rotating disk 10 is coaxially fixed to the adjacent ends of the two connecting shafts 9.

[0026] Multiple placement boxes 11 are horizontally placed between two rotating disks 10, and the placement boxes 11 are evenly arranged along the circumference of the rotating disks 10. Each placement box 11 is a box with a U-shaped cross-section, and each placement box 11 is made of 304 stainless steel perforated plate, with the mesh holes serving as water permeable holes. The two ends of each placement box 11 correspond one-to-one with the two rotating disks 10, and the two ends of each placement box 11 are fixedly connected to and closed by the corresponding rotating disk 10.

[0027] The placement box 11 is used to place matching square placement frames 15. Multiple placement frames 15 can be placed in the placement box 11 along its length. Each placement frame 15 has multiple placement holes arranged in a matrix. A battery case is inserted into each placement hole. Each battery case is interference-fitted with the placement hole to fix the battery case.

[0028] Each placement box 11 has its opening facing outwards for easy loading of the battery case and cleaning of its inner cavity. Two protruding edges 13 are symmetrically fixed along the length of the inner side of the opening of each placement box 11. Each of the two protruding edges 13 corresponds one-to-one with one of the two inner walls of the placement box 11, and each protruding edge 13 is fixed to the corresponding inner wall of the placement box 11. At the same position on each of the two protruding edges 13, a notch 14 communicating with the opening of the placement box 11 is provided.

[0029] Two notches 14 match the placement frame 15 and are used for the placement frame 15 to enter and exit the placement box 11. At the same time, the placement frame 15 can slide smoothly along the two protruding edges 13. The placement frame 15 can be injection molded from high-temperature resistant PP plastic, with dimensions of 420MM×300MM×76MM. There are 375 placement holes on a single frame, which can hold 375 1860 type cylindrical lithium battery steel shells.

[0030] Each placement box 11 is equipped with a limiting mechanism at its opening for closing the opening and for limiting the placement frame 15.

[0031] Specifically, the limiting mechanism includes a cover plate 12. The cover plate 12 is hinged to the opening of the placement box 11. The cover plate 12 and the placement box 11 are made of the same material and have a mesh structure. The cover plate 12 is fitted with a pin at a position symmetrical to the hinge end and away from the hinge end to lock it to the placement box 11. This achieves both sealing of the box opening and limiting and preventing the placement frame 15 from falling off, without affecting the flow of water.

[0032] The mounting plates of the mounting bracket 6 are equipped with drive sources that drive the two rotating discs 10 to rotate synchronously.

[0033] Specifically, the drive source includes a support shaft 7. The support shaft 7 is horizontally positioned between two mounting plates and rotatably connected to the two mounting plates. The support shaft 7 is parallel to the two connecting shafts 9. Two first gears 8 are fixedly sleeved on the support shaft 7, and the two first gears 8 correspond one-to-one with the two rotating disks 10. Each rotating disk 10 has multiple teeth evenly fixed circumferentially on its circumferential end for meshing and transmission with the corresponding first gear 8.

[0034] It should be noted that the driving component that drives the support shaft 7 to rotate can preferably be an existing motor or other technology. For example, the support shaft 7 passes through two mounting plates and one end is coaxially fixed to a driven gear. The drive motor is fixedly installed in the cleaning tank 19 below at the position corresponding to the support shaft 7. The output of the drive motor is fixedly fitted with a driving gear. The driven gear is used to mesh with the driving gear when the connecting shaft 2 is connected to the cleaning tank 19 below. This is existing technology and will not be described in detail here.

[0035] The mounting bracket 6 has a linkage mechanism installed inside its rectangular frame. This mechanism is driven by two first gears 8 from a drive source and is used to drive the mounting bracket 6 to reciprocate along the rotating shaft 4.

[0036] Specifically, the linkage mechanism includes a wire reel 17. A second gear 16 is rotatably mounted on the inner side of each of the two short ends of the rectangular frame. The two second gears 16 are coaxially opposed, and the adjacent ends of the two second gears 16 are coaxially fixedly connected to a wire reel 17. The two wire reels 17 are symmetrically arranged relative to the connecting block 3, and each wire reel 17 corresponds one-to-one with a first gear 8. Each first gear 8 meshes with a second gear 16 on its corresponding wire reel 17.

[0037] Each reel 17 is fixed to the lifting plate 1 with a pull rope 18. Each reel 17 has a groove along its circumference for receiving and winding the corresponding pull rope 18. The width of the groove matches the thickness of the pull rope 18. The pull rope 18 is made of stainless steel wire rope and is wound around the reel 17 in the form of an Archimedean spiral.

[0038] The pull ropes 18 on the two reels 17 are wound in opposite directions to pull the mounting frame 6 to make a smooth reciprocating swing.

[0039] This cleaning equipment is equipped with a cleaning tank 19, whose inner wall is polished for corrosion resistance and easy cleaning. The top of the cleaning tank 19 is fixed with a fixing block for connecting four overlapping shafts 2. Each fixing block has a limiting groove for limiting the corresponding overlapping shaft 2 (not shown in the figure). Spray pipes 20 connected to an external water source are fixedly installed on the inner walls on both sides of the top opening of the cleaning tank 19 for all-around high-pressure spray cleaning of the battery steel shell. A rinsing pipe 21 is horizontally fixedly installed on the bottom inside the cleaning tank 19. The rinsing pipe 21 has evenly spaced 18mm, 4mm diameter spray holes, allowing high-pressure water jets to directly hit the inner holes of the battery steel shell, thoroughly removing debris and nickel powder. The water pressure for the external water source comes from a 20-ton filter. A turbine-type high-pressure blower is also fixedly installed inside the cleaning tank 19, along with an air-cutting assembly, to quickly dry the surface moisture of the battery shell using high-pressure air, reducing watermark residue and improving subsequent drying efficiency.

[0040] Working principle: Insert the 1860 type cylindrical lithium battery steel shells one by one into the placement holes of the placement frame 15, ensuring that the openings of the battery steel shells face outwards. The interference fit between the placement holes and the battery shells achieves a stable fixation of the battery shells. A single placement frame 15 can stably hold 375 battery steel shells. Push the multiple loaded placement frames 15 into the placement box 11 through the notch 14 at the opening of the box 11. The placement frames 15 slide smoothly along the protruding edge 13 inside the placement box 11. After all the placement frames 15 are placed, close the cover plate 12 on the opening of the placement box 11 and lock it with a pin to limit the placement frames 15 and prevent them from falling off during subsequent cleaning.

[0041] Using the overhead crane to hook onto the overlapping shaft 2 at the top of the lifting plate 1, the assembled equipment is smoothly lifted to the top of the cleaning tank 19 and slowly lowered so that the mounting frame 6 and all the placement boxes 11 are completely inside the cleaning tank 19. The 20-ton filter connected to the cleaning tank 19 is started in advance to complete the precision filtration of the water source, providing a clean high-pressure water source for the subsequent high-pressure spraying and rinsing processes.

[0042] The system is activated by a drive motor, which in turn drives a driven gear to rotate. The driven gear then drives a support shaft 7 to rotate in both directions. The support shaft 7 drives two first gears 8 to rotate. The first gears 8 mesh with the teeth of the rotating disks 10 at their circumferential ends, driving the two coaxially opposed rotating disks 10 to rotate synchronously and uniformly. This, in turn, causes multiple placement boxes 11 to revolve around the connecting shaft 9. Simultaneously, as the first gears 8 rotate, they mesh with the second gear 16, causing the coils 17 to rotate synchronously. Since the pull ropes 18 on the two coils 17 are wound in opposite directions, the rotation of the two coils 17 pulls the mounting bracket 6 to make a smooth reciprocating oscillation around the rotating shaft 4. Combined with the circumferential rotation of the placement boxes 11, this enables the battery steel shell to achieve multi-directional and multi-angle composite motion, overcoming the drawback of the fixed orientation of the battery shell in traditional cleaning. This allows the cleaning fluid to fully rinse all parts inside the battery shell, improving the uniformity of cleaning.

[0043] Simultaneously, the spray pipe 20 on the inner wall of the top opening of the cleaning tank 19 is opened, and the filtered high-pressure clean water source is sprayed from all directions onto the outside of the battery steel shell through the spray pipe 20. With the help of the water permeable holes on the placement box 11 and the cover plate 12, the high-pressure water flow can directly penetrate the mesh to rinse the outer wall of the battery shell, thoroughly removing the metal shavings and stamping dust remaining on the outer wall. At the same time, the flushing pipe 21 on the bottom side inside the cleaning tank 19 is opened, and the high-pressure water jet is sprayed from the 4mm diameter water spray holes opened at 18mm intervals on the flushing pipe 21, accurately shooting directly at the outward opening of the battery steel shell. The high-pressure water jet powerfully rushes into the inner hole of the battery shell, thoroughly flushing out the metal nickel powder and fine debris that are difficult to remove from the inner hole, and then discharged with the water flow. This fundamentally solves the technical problem of debris and nickel powder residue in the inner hole of the battery shell in traditional cleaning. The water flow after spraying and rinsing is recycled through the cleaning tank 19 and then enters the filter machine for filtration again, realizing the recycling of water source and greatly reducing the water consumption of the cleaning process.

[0044] After the core cleaning processes of high-pressure spraying and internal rinsing are completed, the spray pipe 20 and rinsing pipe 21 are closed, while the support shaft 7 continues to rotate, keeping the battery steel shell in a multi-angle composite motion state. At the same time, the turbine-type high-pressure fan in the cleaning tank 19 is started. The fan, in conjunction with the air shearing component, generates a high-pressure airflow. The high-pressure airflow blows towards the moving battery steel shell from all directions. By utilizing the multi-angle motion of the battery shell, the airflow can fully contact the inner and outer surfaces of the battery shell, quickly drying the water adhering to the surface, effectively reducing watermark residue on the surface of the battery shell, laying the foundation for the subsequent drying process, and greatly improving the drying efficiency.

[0045] After the air-drying process is completed, the support shaft 7 and the high-pressure fan are turned off. The entire equipment is then lifted smoothly to the outside of the cleaning tank 19 by the overhead crane via the overlapping shaft 2. After the residual water on the surface of the equipment is completely drained, the cover plate 12 of the placement box 11 is opened, and the placement frame 15 is pulled out from the placement box 11 along the protruding edge 13. The battery steel shells in the placement frame 15 can be poured directly into the existing finished product packaging box with the opening facing down and the bottom facing out, completing the rapid unloading and packaging without additional transfer and sorting processes, greatly reducing the labor intensity of the packaging process. The cleaned placement frame 15 can be directly reused in the battery shell loading process to realize the cyclical operation of the equipment and further improve the overall production efficiency.

[0046] Finally, it should be noted that the above description 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 foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-efficiency battery casing cleaning device, comprising a lifting plate (1), characterized in that: A connecting block (3) is fixedly installed at the bottom of the hoisting plate (1), and a mounting bracket (6) is installed on the connecting block (3). The middle part of the mounting bracket (6) is rotatably connected to the connecting block (3). Two rotating discs (10) are rotatably mounted on the mounting bracket (6). The two rotating discs (10) are coaxially opposite each other and their central axis is horizontal. Multiple U-shaped placement boxes (11) are placed horizontally between the two rotating discs (10). Multiple placement boxes (11) are evenly distributed around the circumference of the rotating disk (10), and the opening of each placement box (11) faces outward; each placement box (11) contains multiple matching placement frames (15) for placing battery cases. Each placement box (11) is equipped with a limiting mechanism at its opening for closing the opening and for limiting the placement frame (15); The mounting bracket (6) is equipped with a drive source that drives the two rotating disks (10) to rotate synchronously; The mounting bracket (6) is equipped with a linkage mechanism driven by a drive source and used to drive the mounting bracket (6) to reciprocate.

2. The high-efficiency battery casing cleaning equipment according to claim 1, characterized in that: The limiting mechanism includes a cover plate (12) for closing the opening of the placement box (11), the cover plate (12) being hinged to the placement box (11); multiple water-permeable holes are evenly opened on both the cover plate (12) and the placement box (11); two protruding edges (13) are fixed along the length direction inside the opening of the placement box (11), the two protruding edges (13) are fixed on different inner walls of the opening of the placement box (11) and are symmetrically arranged; the two protruding edges (13) are provided with notches (14) at the same position corresponding to the opening of the placement box (11) and for the placement frame (15) to enter and exit the placement box (11), the two notches (14) matching the placement frame (15).

3. The high-efficiency battery casing cleaning equipment according to claim 1, characterized in that: The drive source includes a support shaft (7), which is horizontally and rotatably mounted on a mounting bracket (6); two first gears (8) are fixedly sleeved on the support shaft (7), and two rotating disks (10) correspond one-to-one with the two first gears (8). Each rotating disk (10) has a ring of teeth fixed on its circumferential end for meshing and transmission with the corresponding first gear (8).

4. The high-efficiency battery casing cleaning equipment according to claim 3, characterized in that: The linkage mechanism includes a coil (17); two coils (17) are rotatably mounted on the mounting frame (6), and the connecting block (3) is located between the two coils (17). The two coils (17) are symmetrically arranged relative to the connecting block (3). Each coil (17) is wound with a pull rope (18), and the two pull ropes (18) are wound in opposite directions. Both pull ropes (18) are fixedly connected to the lifting plate (1). The two coils (17) correspond one-to-one with two first gears (8). Each coil (17) is coaxially fixed with a second gear (16), and each second gear (16) meshes with the first gear (8) corresponding to the coil (17).

5. The high-efficiency battery casing cleaning equipment according to claim 4, characterized in that: The pull rope (18) is wound on the reel (17) in the form of an Archimedean spiral, and the circumferential end of the reel (17) has a groove with a width matching the thickness of the pull rope (18).

6. The high-efficiency battery casing cleaning equipment according to claim 1, characterized in that: It also includes a cleaning tank (19) for placing the mounting bracket (6) and for cleaning the battery case.

7. The high-efficiency battery casing cleaning equipment according to claim 6, characterized in that: The lifting plate (1) is fixed with an overlapping shaft (2) for lifting and resting on the cleaning pool (19).

8. The high-efficiency battery casing cleaning equipment according to claim 6, characterized in that: The cleaning tank (19) is fixedly installed with a rinsing pipe (21) connected to an external water source, and the rinsing pipe (21) is provided with a water spray hole for rinsing the inside of the battery casing.

9. A high-efficiency battery casing cleaning device according to claim 8, characterized in that: The cleaning tank (19) has a spray pipe (20) fixedly installed on the inner wall of the top opening, which is connected to an external water source and used to rinse the outside of the battery casing.

10. A high-efficiency battery casing cleaning device according to claim 6, characterized in that: A fan for drying battery casings is fixedly installed inside the cleaning tank (19).

Images