Pneumatic needle beating texturing equipment

Abstract

The utility model relates to the technical field of production of battery cells (including a power battery cell and an energy storage battery cell), and discloses pneumatic needle beating texturing equipment, which comprises a frame body and a texturing component, the texturing component is mounted on the frame body and is provided with a pneumatic needle component, and the pneumatic needle component is mounted on the frame body. The pneumatic needle assembly comprises a shell, an air pressure chamber located in the shell, an air inlet, an air outlet and a piston located in the air pressure chamber, the air inlet and the air outlet are communicated with the air pressure chamber, the tail of the steel needle is connected with the piston, and the tail of the steel needle is sleeved with the reset spring. Wherein the adjacent pneumatic needle assemblies are provided with dotted horizontal lines which are formed by concave pits and are arranged at an interval of 1mm on the surface of the battery cell. According to the pneumatic needle beating texturing equipment, a pneumatic needle beating method is adopted to replace laser to achieve uniform texturing of the surface of a battery cell aluminum shell, manufacturing cost is low, energy consumption is low, manufacturing cost and using cost of the battery cell aluminum shell texturing equipment are greatly reduced, popularization and application of a UV spraying automatic line are promoted, hazardous waste such as smoke and dust is avoided, and meanwhile the production efficiency of the battery cell aluminum shell texturing equipment is improved. And the texturing efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of battery cell (including power battery cells and energy storage battery cells) production technology, and more specifically, to a pneumatic needle hair removal device. Background Technology

[0002] With the growth in electric vehicle sales, the market demand for power batteries has increased significantly. The country is strongly advocating for low-carbon and green energy, and the application of photovoltaic and wind power generation is expanding widely. Due to the instability of photovoltaic and wind power generation, a large number of energy storage batteries are needed to store green electricity. In addition, in regions with large price differences between peak and off-peak electricity, off-peak electricity can be stored and discharged during peak hours, thus improving grid power quality, regulating electricity demand, and smoothing out peak and off-peak periods. For these reasons, the market demand for both power batteries and energy storage batteries has exploded.

[0003] A battery cell is an independent small battery, and many cells are combined together in series and parallel to form a battery module. Whether it is a cylindrical cell or a prismatic cell, insulation is required between cells and between cells and the tray. The insulation performance of the cell casing must meet certain requirements; otherwise, leakage will lead to thermal runaway of the cell and cause a safety accident.

[0004] Currently, most battery cell casings are insulated using a blue film coating, which is inferior to emerging insulating coating spraying technologies in terms of insulation performance, thermal conductivity, and production efficiency. Because the aluminum casing of the battery cell is very shiny and has poor surface adhesion, a roughening process is required before spraying to enhance coating adhesion. Existing roughening technology involves using a laser to create uniform small pits on the battery cell casing.

[0005] The existing technology has the following disadvantages:

[0006] 1. High manufacturing costs. On automated battery cell coating lines, the high speed of the line (e.g., 400 mm / s at a 50 JPM cycle) means that the galvanometer speed of ordinary lasers cannot keep up, resulting in insufficient density of small pits etched on the battery cell casing. High-speed galvanometer lasers are required, leading to prohibitively high manufacturing costs. A single automated coating line requires at least seven high-speed galvanometer lasers, with the manufacturing cost exceeding ten million RMB. Furthermore, laser ablation generates dust, necessitating customized dust collectors, high-power fans, ductwork, and purification equipment, further increasing both manufacturing and operating costs.

[0007] 2. Due to the limitation of the laser galvanometer frequency, when the line speed increases, the density of the small pits etched by the laser will decrease, thereby reducing the adhesion of the coating.

[0008] 3. The performance of the laser will gradually degrade. When it degrades to a certain extent, the texturing effect will not meet the requirements and will not be easily detected, which may easily cause batch quality accidents.

[0009] 4. High energy consumption. Typically, a single laser has a power of 1500W, 7 sets have a power of 10.5KW, and the exhaust and purification equipment has a power of about 10KW, totaling 20.5KW.

[0010] 5. High operating and maintenance costs. The laser is internally water-cooled, requiring manual replenishment of purified water periodically; when the laser degrades to the point of not meeting production requirements, it needs to be replaced, and the cost of repair or replacement is high. Utility Model Content

[0011] To address the aforementioned problems, this utility model discloses a pneumatic needle hair removal device, comprising:

[0012] Frame,

[0013] The texturing component is mounted on a frame and includes a pneumatic needle assembly. The pneumatic needle assembly includes a housing, a pressure chamber located within the housing, an air inlet and an air outlet communicating with the pressure chamber, and a piston located within the pressure chamber. The tail of the steel needle is connected to the piston, and a return spring is sleeved on the tail of the steel needle.

[0014] Among them, the adjacent pneumatic needle assembly has a dotted horizontal line with a spacing of 1mm formed by pits on the surface of the cell.

[0015] Preferably, the pneumatic needle assembly further includes an air inlet plate with a cavity structure, a housing mounted on the air inlet plate, an air inlet connected to the inside of the air inlet plate, an outer diameter of the housing of more than 25mm, a constricted end of the housing away from the air inlet, a steel needle head extending from the end of the housing away from the air inlet, and a return spring abutting between the piston and the inner wall of the air pressure chamber.

[0016] Preferably, the texturing assembly consists of a top texturing assembly and two opposing side texturing assemblies. Both the top texturing assembly and the side texturing assemblies are equipped with pneumatic needle assemblies. Two side mounting plates are symmetrically installed inside the frame, and a channel for the power supply core to travel is formed between the two side mounting plates. The top texturing assembly and the two side texturing assemblies enclose the channel. The side texturing assembly includes a lateral movement mechanism installed on each side mounting plate, and the pneumatic needle assembly is installed on the lateral movement mechanism. The top texturing assembly includes a lifting mechanism installed on the two side mounting plates, and the pneumatic needle assembly is installed on the lifting mechanism.

[0017] Preferably, the traversing mechanism includes:

[0018] Two sets of transverse rails are mounted side-by-side on the side mounting plate.

[0019] A transverse base plate, with a transverse block slidably mounted on the transverse track at its bottom end;

[0020] A side fixing plate is vertically mounted on a horizontal sliding base plate, and a pneumatic needle assembly is mounted on the inner end of the side fixing plate.

[0021] Preferably, a side reinforcing plate is installed at the outer end of the side fixing plate.

[0022] Preferably, a push-pull clamp adapted to the side mounting plate is installed on the transverse base plate.

[0023] Preferably, the lifting mechanism includes:

[0024] The upper fixing plate has two optical axes connected to the upper fixing plate mounted on each side mounting plate;

[0025] The lower lifting plate is located below the upper fixed plate and is slidably mounted on the optical axis. The pneumatic needle assembly is mounted at the bottom end of the lower lifting plate.

[0026] A hand-cranked worm gear screw jack is mounted on an upper fixed plate and connected to the top of a lower lifting plate.

[0027] Preferably, several pneumatic needle assemblies are arranged along a diagonal line, with adjacent pneumatic needle assemblies distributed at a 1mm spacing along the horizontal direction of the diagonal line and at a 30mm spacing along the vertical direction of the diagonal line.

[0028] Preferred options also include:

[0029] The battery cell conveying assembly is installed in the channel. A battery cell fixture is provided at the front end of the battery cell conveying assembly in the conveying direction. An upwardly protruding stop is provided at the rear end of the battery cell fixture. A loading robot is provided near the battery cell fixture. A unloading robot is provided at the rear end of the battery cell conveying assembly in the conveying direction.

[0030] Preferably, anti-collision blocks are installed at the end of the transverse track away from the channel.

[0031] Compared with the prior art, the present invention has the following advantages:

[0032] This utility model provides a pneumatic needle texturing device that uses pneumatic needles to replace lasers to achieve uniform texturing of the aluminum shell surface of battery cells. It has low manufacturing cost and low energy consumption, which greatly reduces the manufacturing and operating costs of battery cell aluminum shell texturing equipment, promotes the widespread application of UV spraying automatic lines, and generates no hazardous waste such as smoke and dust. It also has high texturing efficiency, and the aluminum shell of the battery cell is texturized as it passes through the pneumatic needle array. The speed is adjustable from 10 to 400 mm / s. Attached Figure Description

[0033] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0034] Figure 1 This is a perspective view of the present utility model;

[0035] Figure 2 This is a schematic diagram of the pneumatic needle assembly structure of this utility model;

[0036] Figure 3 This is a diagram showing the distribution of the pneumatic needle assembly of this utility model on the air inlet plate;

[0037] Figure 4 This is a schematic diagram of the air intake plate structure of this utility model;

[0038] Figure 5 This is a side view of the present invention;

[0039] Figure 6 This is a top view of the present invention;

[0040] Figure 7 This is a front view of the present invention;

[0041] Figure 8 This is a schematic diagram of the side mounting plate of this utility model being installed on the frame.

[0042] In the diagram: 10. Frame; 11. Texturing assembly; 12. Pneumatic needle assembly; 13. Housing; 14. Air pressure chamber; 15. Air inlet; 16. Exhaust port; 17. Piston; 18. Steel needle; 19. Return spring; 21. Side mounting plate; 22. Transverse track; 23. Transverse base plate; 24. Side fixing plate; 25. Side reinforcing plate; 26. Push-pull clamp; 27. Upper fixing plate; 28. Optical shaft; 29. ​​Lower lifting plate; 30. Hand-cranked worm gear screw jack. Detailed Implementation

[0043] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0044] Example

[0045] The present invention will now be further described with reference to the accompanying drawings.

[0046] like Figures 1 to 8 As shown, this embodiment provides a pneumatic needle hair removal device, comprising:

[0047] Frame 10,

[0048] The hair-forming component 11 is mounted on the frame 10. The hair-forming component 11 includes a pneumatic needle assembly 12. The pneumatic needle assembly 12 includes a housing 13, a pressure chamber 14 located in the housing 13, an air inlet 15 and an air outlet 16 communicating with the pressure chamber 14, and a piston 17 located in the pressure chamber 14. The tail of the steel needle 18 is connected to the piston 17, and a return spring 19 is sleeved on the tail of the steel needle 18.

[0049] Among them, the adjacent pneumatic needle assembly 12 has a dotted horizontal line with a spacing of 1 mm formed by pits on the surface of the battery cell.

[0050] The working principle and beneficial effects of the above technical solution are as follows:

[0051] This utility model discloses a pneumatic needle hair removal device. The steel needle 18 is installed in the housing 13 in a resettable manner by a return spring 19. When air is supplied from the air inlet 15 into the pressure chamber 14, the pressure in the pressure chamber 14 increases. The piston 17 drives the steel needle 18 to move in the contraction direction of the return spring 19. After the piston 17 passes the exhaust port 16, the pressure in the pressure chamber 14 is released by the exhaust port 16, and the pressure in the pressure chamber 14 decreases. Under the reset action of the return spring 19, the piston 17 returns to its position in the pressure chamber 14. This utility model provides a pneumatic needle texturing device that uses pneumatic needles to replace lasers to achieve uniform texturing of the aluminum shell surface of battery cells. It has low manufacturing cost and low energy consumption, which greatly reduces the manufacturing and operating costs of battery cell aluminum shell texturing equipment, promotes the widespread application of UV spraying automatic lines, and generates no hazardous waste such as smoke and dust. It also has high texturing efficiency, and the aluminum shell of the battery cell is texturized as it passes through the pneumatic needle array. The speed is adjustable from 10 to 400 mm / s.

[0052] In one embodiment, the pneumatic needle assembly 12 further includes an air inlet plate with a cavity structure, a housing 13 mounted on the air inlet plate, an air inlet 15 communicating with the inside of the air inlet plate, an outer diameter of the housing 13 of more than 25 mm, and a constricted end of the housing 13 away from the air inlet 15, with the head of the steel needle 18 extending from the end of the housing 13 away from the air inlet 15, and a return spring 19 abutting between the piston 17 and the inner wall of the air pressure chamber 14.

[0053] The working principle and beneficial effects of the above technical solution are as follows:

[0054] The piston 17, located at the tail of the steel needle 18, is driven by compressed air input from the air inlet 15 to overcome the elastic force of the return spring 19 and move in the direction of contraction of the return spring 19. When the piston 17 passes the exhaust port 16, the pressure chamber 14 is connected to the atmosphere and exhausts air out through the exhaust port 16. The pressure inside the pressure chamber 14 decreases. When the pressure drops below the elastic force of the return spring 19, the piston 17 returns to its original position under the action of the return spring 19, and the steel needle 18 retracts into the pressure chamber 14. When the piston 17 retracts past the exhaust port 16, the pressure chamber 14 is isolated from the atmosphere, and the pressure in the pressure chamber 14 rises again until it overcomes the elastic force of the return spring 19 and pushes the piston 17 to move in the direction of contraction of the return spring 19 a second time. This process is repeated, and the steel needle achieves an oscillating motion. As long as the air pressure, the distance between the battery cell aluminum shell and the steel needle 18 are properly adjusted, the steel needle 18 can engrave the required pits on the battery cell aluminum shell. When the aluminum casing of the battery cell and the steel needle 18 move relative to each other at a fixed speed, evenly spaced dots and lines can be engraved on the surface of the aluminum casing of the battery cell in the direction of movement, thereby achieving the surface roughening treatment of the aluminum casing of the battery cell.

[0055] In one embodiment, the texturing component 11 consists of a top texturing component and two opposing side texturing components. Both the top texturing component and the side texturing components have pneumatic needle components 12. Two side mounting plates 21 are symmetrically installed inside the frame 10. A channel for the power core to travel is formed between the two side mounting plates 21. The top texturing component and the two side texturing components enclose the channel. The side texturing component includes a lateral movement mechanism installed on each side mounting plate 21. The pneumatic needle components 12 are installed on the lateral movement mechanism. The top texturing component includes a lifting mechanism installed on the two side mounting plates 21. The pneumatic needle components 12 are installed on the lifting mechanism.

[0056] The working principle and beneficial effects of the above technical solution are as follows:

[0057] A top texturing component and two opposing side texturing components complete the surface texturing treatment of the aluminum shell of the battery cell. The top texturing component and the two opposing side texturing components are integrated and installed on two side mounting plates 21. The lateral movement mechanism can realize the lateral movement of the side texturing components, thereby realizing the horizontal distance adjustment of the two opposing side texturing components. The lifting mechanism can realize the longitudinal movement of the top texturing component, thereby realizing the vertical distance adjustment of the top texturing component. Thus, for aluminum shells of different sizes and specifications of battery cells, the texturing component 11 can be adaptively attached to the surface of the aluminum shell of the battery cell.

[0058] In one embodiment, the traversing mechanism includes:

[0059] Two sets of transverse rails 22 are installed side by side on the side mounting plate 21.

[0060] A transverse base plate 23 is provided, and a transverse block is slidably mounted on the transverse track 22 at the bottom end of the transverse base plate 23.

[0061] Side fixing plate 24 is vertically mounted on transverse base plate 23, and pneumatic needle assembly 12 is mounted on the inner end of side fixing plate 24.

[0062] The working principle and beneficial effects of the above technical solution are as follows:

[0063] The transverse base plate 23 moves on the transverse track 22 via the transverse block, thereby enabling the side fixing plate 24 installed on the transverse base plate 23 and the pneumatic needle assembly 12 installed on the side fixing plate 24 to be adjusted in the horizontal direction.

[0064] In one embodiment, a side reinforcing plate 25 is installed at the outer end of the side fixing plate 24.

[0065] The beneficial effects of the above technical solution are as follows:

[0066] The side reinforcing plate 25 improves the connection strength between the side fixing plate 24 and the transverse base plate 23.

[0067] In one embodiment, a push-pull clamp 26 adapted to the side mounting plate 21 is installed on the transverse base plate 23.

[0068] The beneficial effects of the above technical solution are as follows:

[0069] The push-pull clamp 26 facilitates the fixation of the transverse base plate 23 on the side mounting plate 21.

[0070] In one embodiment, the lifting mechanism includes:

[0071] The upper fixing plate 27 has two optical axes 28 connected to the upper fixing plate 27 mounted on each side mounting plate 21.

[0072] The lower lifting plate 29 is located below the upper fixed plate 27 and is slidably mounted on the optical axis 28. The pneumatic needle assembly 12 is mounted on the bottom end of the lower lifting plate 29.

[0073] The hand-cranked worm gear screw jack 30 is installed on the upper fixed plate 27 and connected to the top of the lower lifting plate 29.

[0074] The working principle and beneficial effects of the above technical solution are as follows:

[0075] Manually rotating the hand-cranked worm gear screw jack 30 causes the lower lifting plate 29 to move up and down along the optical axis 28 below the upper fixed plate 27, thereby causing the pneumatic needle assembly 12 installed at the bottom of the lower lifting plate 29 to adjust the distance in the vertical direction.

[0076] In one embodiment, a plurality of pneumatic needle assemblies 12 are arranged along a diagonal line, with adjacent pneumatic needle assemblies 12 distributed at a 1mm spacing along the horizontal direction of the diagonal line and adjacent pneumatic needle assemblies 12 distributed at a 30mm spacing along the vertical direction of the diagonal line.

[0077] The working principle and beneficial effects of the above technical solution are as follows:

[0078] Because a single pneumatic needle assembly 12 can only create a small pitted line on the surface of the aluminum battery cell shell along its travel direction, this is clearly insufficient for roughening the entire surface of the aluminum battery cell shell. To enhance the adhesion of the coating on the aluminum battery cell shell, it is desirable that the small pits on the surface of the aluminum battery cell shell be evenly distributed and that the density of the small pits on the surface of the aluminum battery cell shell be as high as possible. However, the outer diameter of a single pneumatic needle assembly is usually greater than 25mm. If the pneumatic needle assembly 12 is arranged in a "horizontal and vertical" manner, the spacing between the dots etched in the vertical direction will definitely be greater than or equal to 25mm, which will create a large area of ​​blank space, i.e., an unroughened area. In this case, only reciprocating translational etching can be used, which has low working efficiency and cannot meet the requirements of high cycle time. Therefore, the pneumatic needle assemblies 12 of the present invention are arranged along a diagonal line. In this way, the adjacent pneumatic needle assemblies 12 are offset by 1mm to achieve a column spacing of 1mm. After the engraving is completed, a dot matrix of small pits with a column spacing of 1mm is formed on the surface of the aluminum shell of the battery cell. The dot spacing in the direction of travel depends on the moving speed of the aluminum shell of the battery cell and the oscillation frequency of the pneumatic needle assembly 12. As long as it is set properly, the required dot matrix of small pits can be engraved, which greatly enhances the adhesion of the coating on the aluminum shell of the battery cell.

[0079] This horizontal marking technique creates dotted horizontal lines spaced 1mm apart on the surface of the battery cell's aluminum casing. The density of these dots on the same horizontal line depends on the moving speed of the battery cell's aluminum casing relative to the pneumatic needle assembly; the slower the speed, the smaller the dot spacing and the higher the density. The pneumatic needle can vibrate at up to 300Hz. If the workpiece moving speed is 300mm / s, the spacing between the small pits marked along the direction of travel will be 1mm.

[0080] In one embodiment, it also includes:

[0081] The battery cell conveying assembly is installed in the channel. A battery cell fixture is provided at the front end of the battery cell conveying assembly in the conveying direction. An upwardly protruding stop is provided at the rear end of the battery cell fixture. A loading robot is provided near the battery cell fixture. A unloading robot is provided at the rear end of the battery cell conveying assembly in the conveying direction.

[0082] The beneficial effects of the above technical solution are as follows:

[0083] The loading robot grabs the white battery cell and places it upside down on the battery cell fixture with the electrode facing down. There is an upward-protruding stop at the rear end of the fixture, which supports the battery cell as it moves forward. When it passes through the pneumatic needle array channel formed by the self-enclosing channel of the battery cell aluminum shell, the surface of the battery cell aluminum shell is engraved with uniform small pits. The unloading robot located at the rear end of the battery cell conveying assembly transfers the battery cell aluminum shell to the next station.

[0084] In one embodiment, anti-collision blocks are installed on the transverse track 22 at the end away from the channel.

[0085] The beneficial effects of the above technical solution are as follows:

[0086] The anti-collision block is designed to prevent the side mounting plate 21 from detaching from the transverse track 22.

[0087] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A pneumatic needle-based hair removal device, characterized in that, include: Frame (10), The hair-forming component (11) is mounted on the frame (10). The hair-forming component (11) includes a pneumatic needle assembly (12). The pneumatic needle assembly (12) includes a housing (13), a pressure chamber (14) located in the housing (13), an air inlet (15) and an exhaust port (16) communicating with the pressure chamber (14), and a piston (17) located in the pressure chamber (14). The tail of the steel needle (18) is connected to the piston (17), and a return spring (19) is sleeved on the tail of the steel needle (18). Among them, the adjacent pneumatic needle assembly (12) has a dotted horizontal line with a spacing of 1 mm formed by pits on the surface of the cell.

2. The pneumatic needle hair removal device according to claim 1, characterized in that, The pneumatic needle assembly (12) also includes an air inlet plate with a cavity structure, a housing (13) mounted on the air inlet plate, an air inlet (15) connected to the inside of the air inlet plate, an outer diameter of the housing (13) of more than 25 mm, a constricted end of the housing (13) away from the air inlet (15), a head of the steel needle (18) extending from the end of the housing (13) away from the air inlet (15), and a return spring (19) abutting between the piston (17) and the inner wall of the air pressure chamber (14).

3. The pneumatic needle hair removal device according to claim 1, characterized in that, The fuzzing component (11) consists of a top fuzzing component and two opposing side fuzzing components. Both the top fuzzing component and the side fuzzing components are equipped with pneumatic needle components (12). Two side mounting plates (21) are symmetrically installed inside the frame (10). A channel for the power supply core to travel is formed between the two side mounting plates (21). The top fuzzing component and the two side fuzzing components surround the channel. The side fuzzing component includes a transverse movement mechanism installed on each side mounting plate (21). The pneumatic needle component (12) is installed on the transverse movement mechanism. The top fuzzing component includes a lifting mechanism installed on the two side mounting plates (21). The pneumatic needle component (12) is installed on the lifting mechanism.

4. The pneumatic needle hair removal device according to claim 3, characterized in that, The traverse mechanism includes: Transverse rails (22), two sets of transverse rails (22) are installed side by side on the side mounting plate (21); A transverse base plate (23) is provided with a transverse block that is slidably mounted on a transverse track (22) at its bottom end; Side fixing plate (24) is vertically mounted on transverse base plate (23), and pneumatic needle assembly (12) is mounted on the inner end of side fixing plate (24).

5. The pneumatic needle hair removal device according to claim 4, characterized in that, A side reinforcing plate (25) is installed at the outer end of the side fixing plate (24).

6. The pneumatic needle hair removal device according to claim 4, characterized in that, A push-pull clamp (26) adapted to the side mounting plate (21) is installed on the transverse base plate (23).

7. The pneumatic needle hair removal device according to claim 3, characterized in that, The lifting mechanism includes: The upper fixing plate (27) has two optical axes (28) connected to the upper fixing plate (27) mounted on each side mounting plate (21); The lower lifting plate (29) is located below the upper fixed plate (27) and is slidably mounted on the optical axis (28). The pneumatic needle assembly (12) is mounted on the bottom end of the lower lifting plate (29). A hand-cranked worm gear screw jack (30) is installed on the upper fixed plate (27) and connected to the top of the lower lifting plate (29).

8. The pneumatic needle hair removal device according to claim 1, characterized in that, Several pneumatic needle assemblies (12) are arranged along a diagonal line. Adjacent pneumatic needle assemblies (12) are distributed with a 1mm spacing along the horizontal direction of the diagonal line, and adjacent pneumatic needle assemblies (12) are distributed with a 30mm spacing along the vertical direction of the diagonal line.

9. A pneumatic needle hair removal device according to claim 3, characterized in that, Also includes: The battery cell conveying assembly is installed in the channel. A battery cell fixture is provided at the front end of the battery cell conveying assembly in the conveying direction. An upwardly protruding stop is provided at the rear end of the battery cell fixture. A loading robot is provided near the battery cell fixture. A unloading robot is provided at the rear end of the battery cell conveying assembly in the conveying direction.

10. A pneumatic needle hair removal device according to claim 4, characterized in that, The transverse track (22) is equipped with anti-collision blocks at the end away from the passage.

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