A colloid maintenance-free battery grid processing equipment

Abstract

The present application relates to battery manufacturing technology field, and disclose a kind of colloidal maintenance-free battery grid processing equipment, including base, outer expansion component, driven assembly and sandpaper, outer expansion component is arranged in the side wall of base, outer expansion component is arranged in the side wall of base and located above outer expansion component, sandpaper is arranged between outer expansion component and driven assembly;By the clamping of two sides second circular plate to battery grid and the transmission of transmission belt, so that battery grid is polished in the process of sandpaper, battery grid cannot be shaken due to the clamping of second circular plate, so that the grinding mark of the surface of battery grid after polishing is more uniform, by the positioning of battery grid, it can be ensured that polishing path and intensity are controllable, so as to realize uniform surface roughness and accurate geometric dimension, avoid grid bar fracture or spacing deviation caused by displacement, so as to improve the electrical performance consistency of battery, reduce polishing rework rate while improving work efficiency.

Description

Technical Field

[0001] This invention relates to the field of battery manufacturing technology, specifically to a colloidal maintenance-free battery grid processing equipment. Background Technology

[0002] In the production process of gel maintenance-free batteries, the grid, as the core component that carries active materials and conducts current, directly affects the battery's performance, lifespan, and safety due to its processing quality.

[0003] Existing equipment often uses fixed sandpaper or single-axis grinding to polish the sides of the grid, which is difficult to adapt to different grid shapes, resulting in burrs, flash residue, or uneven grinding.

[0004] Plate grids typically require grinding both the flat surface and the sides simultaneously. Traditional equipment requires phased operations, such as grinding the flat surface first and then flipping it to grind the sides. This is not only time-consuming and labor-intensive, but may also cause positional shifts due to secondary clamping, affecting the consistency of processing.

[0005] For mass-produced grids, existing equipment lacks an adaptive adjustment mechanism, requiring frequent fixture changes or parameter adjustments. Especially when handling grids of different thicknesses or shapes, manual intervention is costly and cannot meet the needs of continuous operation.

[0006] During the conveyor belt transport of solar panel grids, the friction of the grinding equipment on the solar panel grids will cause the solar panel grids to move laterally. If the friction between the grinding equipment and the solar panel grids is too great, it will cause the solar panel grids to sway and shift on the conveyor belt or even slide outwards.

[0007] To address this, a colloidal maintenance-free solar panel grid processing equipment is proposed. Summary of the Invention

[0008] The purpose of this invention is to provide a colloidal maintenance-free solar cell grid processing equipment to solve the problems mentioned in the background art.

[0009] To achieve the above objectives, the present invention provides the following technical solution: a colloidal maintenance-free solar cell grid processing device, comprising a base, an expansion assembly, a driven assembly, and sandpaper. The expansion assembly is disposed on the side wall of the base and located above the expansion assembly. The sandpaper is disposed between the expansion assembly and the driven assembly. The expansion assembly includes a first rotating shaft rotatably connected to the side wall of the base. A second rotating shaft is rotatably connected inside the first rotating shaft. The second rotating shaft passes through and is rotatably connected to the interior of the base. A first pressure plate is symmetrically slidably connected to the outer wall of the first rotating shaft. A first spring is fixedly connected between the first pressure plate and the first rotating shaft. A first disc is fixedly connected to the middle of the second rotating shaft. A second spring is symmetrically fixedly connected to the outer wall of the first disc. A first sliding plate is fixedly connected to the end of each second spring away from the first disc. The first sliding plates are slidably connected to the outer wall of the second rotating shaft.

[0010] Preferably, the expansion assembly further includes a first rotating shaft, with toothed sleeves symmetrically and movably connected inside the first rotating shaft. The inner walls of the toothed sleeves are all provided with threaded grooves. A slider is symmetrically and fixedly connected to the outer wall of the second rotating shaft, and the slider is slidably connected inside the threaded grooves. A support plate is symmetrically and slidably connected to the outer wall of the first rotating shaft, and the support plate meshes with the toothed sleeve. Air holes are symmetrically provided inside the first rotating shaft, and a limit plate is slidably connected to the end of each air hole near the toothed sleeve. A square rod is slidably connected to the end of the second rotating shaft near the base. A first circular plate is fixedly connected to the side of the square rod away from the base. A third spring is fixedly connected between the first circular plate and the outer wall of the base. A trapezoidal groove is provided on the side of the first circular plate away from the base.

[0011] Preferably, the bottom of the base is rotatably connected to a drive shaft, and a conveyor belt is driven between the drive shafts. The driven component includes a motor mounted on the base, a second disk is fixedly connected to the output shaft of the motor, a slide is symmetrically slidably connected to the outer wall of the second disk, and a fourth spring is fixedly connected between the slide and the second disk.

[0012] Preferably, the outer wall of the base is provided with a positioning assembly, which includes two circular rods symmetrically slidably connected to the outer wall of the base. A horizontal plate is fixedly connected to the end of each of the two circular rods. A trapezoidal block is fixedly connected to the middle of the horizontal plate near the first circular plate. The trapezoidal block is adapted to the first circular plate. A vertical plate is fixedly connected to the end of each circular rod away from the horizontal plate. The vertical plates are slidably connected to the outer wall of the base. A fifth spring is fixedly connected between the top of each vertical plate and the outer wall of the base. A third rotating shaft is rotatably connected to the side of each vertical plate away from the circular rod.

[0013] Preferably, the positioning component further includes a second pressure plate symmetrically slidably connected to the middle of the third rotating shaft, with inclined blocks fixedly connected to the inner walls of the second pressure plate, a second sliding plate symmetrically slidably connected to the inside of the third rotating shaft, the inclined surfaces of the second sliding plate and the inclined blocks fitting together, a second circular plate symmetrically slidably connected to the outer wall of the third rotating shaft, a connecting rod fixedly connected between the second circular plate and the second sliding plate, and a sixth spring fixedly connected between the second circular plate and the inner wall of the third rotating shaft.

[0014] Preferably, the outer wall of the toothed sleeve is provided with straight sliding grooves arranged in a ring array, the limiting plate is adapted to the straight sliding grooves on the outer wall of the toothed sleeve, the outer wall of the toothed sleeve is fixedly connected with toothed plates arranged in a ring array, the support plate is simultaneously limited by the first rotating shaft and the toothed sleeve, and magnetic plates are fixedly connected to the opposite surfaces of the first sliding plate and the toothed sleeve.

[0015] Preferably, the air hole is connected between the limiting plate and the first pressure plate.

[0016] Preferably, both the drive shaft and the third rotating shaft are connected by a drive belt, and anti-slip grooves are provided on opposite sides of the second circular plate.

[0017] Compared with the prior art, the beneficial effects of the present invention are: 1. By clamping the battery grid with the second circular plates on both sides and driving it with the conveyor belt, the battery grid cannot wobble during the sanding process. This results in more uniform sanding marks on the surface of the battery grid after sanding. By positioning the battery grid, the sanding path and force can be controlled, thereby achieving a uniform surface roughness and precise geometric dimensions. This avoids grid breakage or spacing deviation caused by displacement, thereby improving the consistency of battery electrical performance, reducing the sanding rework rate and increasing work efficiency.

[0018] 2. By sliding relative to and supporting the support plate inside the first rotating shaft, the sandpaper originally covering the outer wall of the support plate bends downward, thereby polishing the edge of the battery grid. Polishing removes burrs from the sides of the grid, making the contact between the plates and electrolyte, electrode tabs and other components tighter and smoother, reducing the obstruction during current conduction, and improving the battery charging and discharging efficiency. The sandpaper bends and polishes the battery grid, allowing a larger area to be polished in a single pass through the equipment, effectively improving the processing efficiency of the battery grid. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the base of the present invention; Figure 3This is a front view schematic diagram of the overall structure of the present invention; Figure 4 This is a cross-sectional view of the overall structure of the present invention; Figure 5 For the present invention Figure 4 Enlarged schematic diagram of the structure at point A in the middle; Figure 6 For the present invention Figure 5 Enlarged schematic diagram of the structure at point B; Figure 7 This is an exploded view of the external expansion component structure of the present invention; Figure 8 This is a cross-sectional view of the positioning component structure of the present invention; Figure 9 This is an exploded view of the positioning component structure of the present invention; Figure 10 This is a partial schematic diagram of the third rotating shaft structure of the present invention.

[0020] In the diagram: 1. Base; 2. Drive shaft; 3. Conveyor belt; 4. Outer expansion assembly; 5. Driven assembly; 6. Sandpaper; 7. Positioning assembly; 8. Drive belt; 41. First rotating shaft; 42. Second rotating shaft; 43. First pressure plate; 44. First spring; 45. First disc; 46. Second spring; 47. First sliding plate; 48. Toothed sleeve; 49. Threaded groove; 410. Slider; 411. Air hole; 412. Limiting plate; 413. Support 414. Plate; 415. Square rod; 416. Third spring; 417. First circular plate; 418. Trapezoidal groove; 419. Trapezoidal block; 51. Motor; 52. Second disc; 53. Slide; 54. Fourth spring; 71. Round rod; 72. Horizontal plate; 73. Vertical plate; 74. Fifth spring; 75. Third pivot; 76. Second pressure plate; 77. Inclined block; 78. Second sliding plate; 79. Second circular plate; 710. Connecting rod; 711. Sixth spring. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0022] Embodiments of the present invention: Please refer to Figures 1 to 10A colloidal maintenance-free solar cell grid processing device includes a base 1, an expansion assembly 4, a driven assembly 5, and sandpaper 6. The expansion assembly 4 is disposed on the side wall of the base 1 and is located above the side wall of the base 1. The sandpaper 6 is disposed between the expansion assembly 4 and the driven assembly 5. The expansion assembly 4 includes a first rotating shaft 41 rotatably connected to the side wall of the base 1. A second rotating shaft 42 is rotatably connected inside the first rotating shaft 41 and passes through and is rotatably connected to the interior of the base 1. A first pressure plate 43 is symmetrically slidably connected to the outer wall of the first rotating shaft 41. A first spring 44 is fixedly connected between the first pressure plate 43 and the first rotating shaft 41. A first disc 45 is fixedly connected to the middle of the second rotating shaft 42. A second spring 46 is symmetrically fixedly connected to the outer wall of the first disc 45. A first sliding plate 47 is fixedly connected to the end of the second spring 46 away from the first disc 45. The first sliding plate 47 is slidably connected to the outer wall of the second rotating shaft 42.

[0023] The expansion assembly 4 also includes a first rotating shaft 41, with toothed sleeves 48 symmetrically and movably connected inside the first rotating shaft 41. The inner walls of the toothed sleeves 48 are provided with threaded grooves 49. The outer walls of the second rotating shaft 42 are symmetrically and fixedly connected with sliders 410, which are slidably connected inside the threaded grooves 49. The outer walls of the first rotating shaft 41 are symmetrically and slidably connected with support plates 413, which mesh with the toothed sleeves 48. The interior of the first rotating shaft 41 is symmetrically provided with air holes 411. The ends of the air holes 411 near the toothed sleeves 48 are slidably connected with limit plates 412. The end of the second rotating shaft 42 near the base 1 is slidably connected with a square rod 414. The side of the square rod 414 away from the base 1 is fixedly connected with a first circular plate 416. A third spring 415 is fixedly connected between the first circular plate 416 and the outer wall of the base 1. The side of the first circular plate 416 away from the base 1 is provided with a trapezoidal groove 417.

[0024] The bottom of the base 1 is driven to rotate and connected to a drive shaft 2. A conveyor belt 3 is connected between the drive shafts 2. The driven component 5 includes a motor 51 mounted on the base 1. A second disk 52 is fixedly connected to the output shaft of the motor 51. A slide 53 is symmetrically slidably connected to the outer wall of the second disk 52. A fourth spring 54 is fixedly connected between the slide 53 and the second disk 52.

[0025] The outer wall of the toothed sleeve 48 is provided with straight sliding grooves arranged in a ring array. The limiting plate 412 is adapted to the straight sliding grooves on the outer wall of the toothed sleeve 48. The outer wall of the toothed sleeve 48 is fixedly connected with toothed plates arranged in a ring array. The support plate 413 is simultaneously limited by the first rotating shaft 41 and the toothed sleeve 48. The first sliding plate 47 and the opposing surfaces of the toothed sleeve 48 are both fixedly connected with magnetic plates.

[0026] The vent 411 is connected between the limiting plate 412 and the first pressure plate 43.

[0027] The outer wall of the base 1 is provided with a positioning component 7. The positioning component 7 includes round rods 71 ​​that are symmetrically slidably connected to the outer wall of the base 1. A horizontal plate 72 is fixedly connected to the end of the two round rods 71. A trapezoidal block 418 is fixedly connected to the middle of the side of the horizontal plate 72 near the first round plate 416. The trapezoidal block 418 is adapted to the first round plate 416. A vertical plate 73 is fixedly connected to the end of the round rods 71 ​​away from the horizontal plate 72. The vertical plates 73 are slidably connected to the outer wall of the base 1. A fifth spring 74 is fixedly connected between the top of the vertical plate 73 and the outer wall of the base 1. A third rotating shaft 75 is rotatably connected to the side of the vertical plate 73 away from the round rods 71.

[0028] The positioning component 7 also includes a second pressure plate 76 symmetrically slidably connected to the middle of the third rotating shaft 75. The inner wall of the second pressure plate 76 is fixedly connected to an inclined block 77. The inner wall of the third rotating shaft 75 is symmetrically slidably connected to a second sliding plate 78. The inclined surfaces of the second sliding plate 78 and the inclined block 77 are in contact. The outer wall of the third rotating shaft 75 is symmetrically slidably connected to a second circular plate 79. A connecting rod 710 is fixedly connected between the second circular plate 79 and the second sliding plate 78. A sixth spring 711 is fixedly connected between the second circular plate 79 and the inner wall of the third rotating shaft 75.

[0029] A transmission belt 8 is connected between the transmission shaft 2 and the third rotating shaft 75, and anti-slip grooves are provided on opposite sides of the second circular plate 79.

[0030] In practical application, the operator starts the motor 51, which drives the second disc 52 to rotate. When the second disc 52 rotates, it drives the first rotating shaft 41 to rotate together through the sandpaper 6. At this time, because the support plate 413 is slidably connected to the first rotating shaft 41 and the support plate 413 limits the toothed sleeve 48, the second rotating shaft 42 inside the toothed sleeve 48 will rotate together with the first rotating shaft 41.

[0031] After the sandpaper 6 begins to move between the driven component 5 and the expanding component 4, the operator places the solar panel grid on the conveyor belt 3. Under the transport of the conveyor belt 3, the solar panel grid gradually moves laterally downwards from the sandpaper 6. During the movement, the solar panel grid first contacts the third rotating shaft 75 and compresses the second pressure plate 76 sliding on the surface of the third rotating shaft 75. After being compressed, the second pressure plate 76 will drive the inclined block 77 on its inner wall to slide into the third rotating shaft 75. When the inclined block 77 slides into the third rotating shaft 75, the inclined surface of the inclined block 77 will compress the second sliding plate 78, causing the two sides of the second sliding plate 78 to move closer together. When the second slide plate 78 moves inside the third rotating shaft 75, it will drive the second circular plates 79 on both sides to move closer together through the connecting rod 710. The sixth spring 711 is compressed and elastically contracts during the movement of the second circular plate 79. After the second circular plate 79 moves closer together, it will limit the battery grid. At this time, because the third rotating shaft 75 rotates synchronously with the transmission shaft 2 through the transmission belt 8, the anti-slip groove of the second circular plate 79 can clamp and transport the battery grid forward, so that the battery grid remains in a state of synchronous movement with the conveyor belt 3 when the second circular plate 79 clamps and rotates it, so that the sandpaper 6 can be stable when polishing the battery grid. By clamping the battery grid with the second circular plates 79 on both sides and driving it with the conveyor belt 3, the battery grid cannot wobble during the sanding process by the sandpaper 6. This makes the sanding marks on the surface of the battery grid more uniform. By positioning the battery grid, the sanding path and force can be controlled, thereby achieving uniform surface roughness and precise geometric dimensions. This avoids grid breakage or spacing deviation caused by displacement, thereby improving the consistency of battery electrical performance, reducing the sanding rework rate and improving work efficiency.

[0032] When the battery grid exerts upward pressure on the third rotating shaft 75, the vertical plate 73 will lift the trapezoidal block 418 upward along with the round rod 71 and the horizontal plate 72. The fifth spring 74 will contract under pressure, and the trapezoidal block 418 will be inserted into the trapezoidal groove 417 on the first circular plate 416. Because the trapezoidal block 418 is in a fixed state, while the first circular plate 416 is rotating together with the second rotating shaft 42, when the trapezoidal block 418 is inserted into the trapezoidal groove 417 of the first circular plate 416, the trapezoidal block 418 will obstruct the rotation of the second rotating shaft 42 through the first circular plate 416. 2 When the first shaft 41 stops rotating, it will continue to rotate. During this process, the first shaft 41 drives the support plate 413 to rotate together and engage with the toothed sleeve 48. After the support plate 413 engages with the toothed sleeve 48, it will slide out of the first shaft 41. After the support plate 413 slides out of the first shaft 41, the sandpaper 6 located on both sides of the first shaft 41 will be pulled downward. At this time, the sandpaper 6 will compress the slide 53 to make the slide 53 shrink into the second disc 52, thereby shortening the distance between the two slides 53, so that the top two sides of the sandpaper 6 can be lowered and adjusted together with the bottom two sides of the sandpaper 6. When the battery grid moves below the sandpaper 6 and is squeezed by the sandpaper 6, the first pressure plate 43 slides inward toward the first rotating shaft 41. The first spring 44 is elastically compressed by the pressure of the first pressure plate 43. After the first pressure plate 43 moves, the air inside the vent 411 is compressed and acts on the limiting plate 412, causing the limiting plate 412 to slide toward the toothed sleeve 48. After sliding, the limiting plate 412 slides into the straight groove on the surface of the toothed sleeve 48, thereby limiting the toothed sleeve 48. During the rotation of the face sleeve 48 with the first rotating shaft 41, the slide block 410 slides inside the threaded groove 49, causing the toothed face sleeve 48 to move closer to the inside of the first rotating shaft 41. During the movement, the toothed face sleeve 48 will drive the support plate 413 to move closer together. After the support plate 413 moves closer, the sandpaper 6 bent by the support plate 413 will polish the side of the battery grid. This allows the equipment to polish the surface of the battery grid while simultaneously polishing the rough edges, making the battery grid smooth and flat after polishing.

[0033] By sliding relative to and supporting the first rotating shaft 413 inside the support plate 413, the sandpaper 6 originally covering the outer wall of the support plate 413 is bent downwards, so that the sandpaper 6 can polish the edge of the battery grid. Polishing can remove burrs on the side of the grid, making the contact between the plate and the electrolyte, electrode tabs and other components tighter and smoother, reducing the obstruction during current conduction, and improving the battery charging and discharging efficiency. By polishing the battery grid when the sandpaper 6 bends, a larger area of ​​the battery grid can be polished in a single pass through the equipment, which can effectively improve the processing efficiency of the battery grid.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0035] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A colloidal maintenance-free solar cell grid processing equipment, comprising a base (1), an expansion assembly (4), a driven assembly (5), and sandpaper (6), characterized in that: The expansion assembly (4) is disposed on the side wall of the base (1), the driven assembly (5) is disposed on the side wall of the base (1) and located above the expansion assembly (4), and the sandpaper (6) is disposed between the expansion assembly (4) and the driven assembly (5); the expansion assembly (4) includes a first rotating shaft (41) rotatably connected to the side wall of the base (1), and a second rotating shaft (42) rotatably connected inside the first rotating shaft (41), the second rotating shaft (42) passing through and rotatably connected inside the base (1), the first rotating shaft (41)... 1) A first pressure plate (43) is symmetrically slidably connected to the outer wall. A first spring (44) is fixedly connected between the first pressure plate (43) and the first rotating shaft (41). A first disc (45) is fixedly connected to the middle of the second rotating shaft (42). A second spring (46) is symmetrically fixedly connected to the outer wall of the first disc (45). A first sliding plate (47) is fixedly connected to the end of the second spring (46) away from the first disc (45). The first sliding plate (47) is slidably connected to the outer wall of the second rotating shaft (42). The first rotating shaft (41) is symmetrically and movably connected to a toothed sleeve (48), the inner wall of which is provided with threaded grooves (49). The outer wall of the second rotating shaft (42) is symmetrically and fixedly connected to a slider (410), the slider (410) is slidably connected to the inside of the threaded grooves (49). The outer wall of the first rotating shaft (41) is symmetrically and slidably connected to a support plate (413), the support plate (413) meshing with the toothed sleeve (48). The interior of the first rotating shaft (41) is symmetrically provided with air holes. 411), the air hole (411) is slidably connected to a limit plate (412) at one end near the toothed sleeve (48), the second rotating shaft (42) is slidably connected to a square rod (414) at one end near the base (1), the square rod (414) is fixedly connected to a first circular plate (416) on the side away from the base (1), a third spring (415) is fixedly connected between the first circular plate (416) and the outer wall of the base (1), and a trapezoidal groove (417) is opened on the side of the first circular plate (416) away from the base (1). The bottom of the base (1) is driven to rotate and connected to a drive shaft (2), and a conveyor belt (3) is driven between the drive shafts (2). The driven component (5) includes a motor (51) mounted on the base (1). A second disk (52) is fixedly connected to the output shaft of the motor (51). A slide (53) is symmetrically slidably connected to the outer wall of the second disk (52). A fourth spring (54) is fixedly connected between the slide (53) and the second disk (52). The outer wall of the base (1) is provided with a positioning component (7). The positioning component (7) includes round rods (71) symmetrically slidably connected to the outer wall of the base (1). A horizontal plate (72) is fixedly connected to the end of the two round rods (71). A trapezoidal block (418) is fixedly connected to the middle of the side of the horizontal plate (72) near the first round plate (416). The trapezoidal block (418) and the first round plate (416) are adapted to each other. A vertical plate (73) is fixedly connected to the end of the round rod (71) away from the horizontal plate (72). The vertical plate (73) is slidably connected to the outer wall of the base (1). A fifth spring (74) is fixedly connected between the top of the vertical plate (73) and the outer wall of the base (1). A third rotating shaft (75) is rotatably connected to the side of the vertical plate (73) away from the round rod (71). The positioning component (7) also includes a second pressure plate (76) symmetrically slidably connected to the middle of the third rotating shaft (75). The inner wall of the second pressure plate (76) is fixedly connected with an inclined block (77). The interior of the third rotating shaft (75) is symmetrically slidably connected with a second sliding plate (78). The inclined surfaces of the second sliding plate (78) and the inclined block (77) are in contact. The outer wall of the third rotating shaft (75) is symmetrically slidably connected with a second circular plate (79). A connecting rod (710) is fixedly connected between the second circular plate (79) and the second sliding plate (78). A sixth spring (711) is fixedly connected between the second circular plate (79) and the inner wall of the third rotating shaft (75).

2. The colloidal maintenance-free solar cell grid processing equipment according to claim 1, characterized in that: The outer wall of the toothed sleeve (48) is provided with straight sliding grooves arranged in a ring array. The limiting plate (412) is adapted to the straight sliding grooves on the outer wall of the toothed sleeve (48). The outer wall of the toothed sleeve (48) is fixedly connected with toothed plates arranged in a ring array. The support plate (413) is simultaneously limited by the first rotating shaft (41) and the toothed sleeve (48). The first sliding plate (47) and the toothed sleeve (48) are both fixedly connected with magnetic plates on opposite sides.

3. The colloidal maintenance-free solar cell grid processing equipment according to claim 1, characterized in that: The air hole (411) is connected between the limiting plate (412) and the first pressure plate (43).

4. The colloidal maintenance-free solar cell grid processing equipment according to claim 1, characterized in that: A transmission belt (8) is connected between the transmission shaft (2) and the third rotating shaft (75), and anti-slip grooves are provided on opposite sides of the second circular plate (79).

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