Adjustable photovoltaic silicon wafer carrier mechanism and method

Abstract

The application discloses a adjustable photovoltaic silicon wafer carrying mechanism and method, and relates to the technical field of photovoltaic industry, which comprises a bottom plate, the upper end surface of the bottom plate is fixedly connected with installation side boxes on both sides, two installation side boxes are fixedly connected with an encapsulation baffle between the two sides, and the upper end of the installation side box is provided with a closing assembly for closing the box formed by the encapsulation baffle and the installation side box; the installation side box, the turnover cover and the encapsulation baffle are arranged to jointly form a closed box, and effective physical isolation can be formed on the photovoltaic silicon wafer in the box. The structure can avoid the external collision in the carrying process from directly acting on the silicon wafer, and can block the pollutants such as suspended particulate matters, dust and fiber scraps from adhering to the surface of the silicon wafer, so that the risk of damage and pollution of the silicon wafer in the transfer link is significantly reduced, and the safety and reliability of the photovoltaic silicon wafer carrying are comprehensively ensured.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic industry technology, specifically to a transport mechanism and method for adjustable photovoltaic silicon wafers. Background Technology

[0002] Photovoltaic silicon wafers are the core substrate material for solar cell production. Their physical integrity and surface cleanliness directly determine the photoelectric conversion efficiency and product yield of the final cell. Throughout the entire process of silicon wafer production, from slicing and cleaning to testing and cell manufacturing, specialized transport mechanisms are needed to ensure stable transfer and temporary storage between multiple processes.

[0003] For the transfer and storage of photovoltaic silicon wafers, patent announcement number CN119517817B proposes a layered adjustable storage photovoltaic silicon wafer transport mechanism. This mechanism includes a base constituting the transport mechanism and a bracket mounted on the upper surface of the base. The bracket has a U-shaped structure and is inverted on the left and right sides of the base, creating an open access space on the front and rear sides of the base and above the bracket. A support mechanism is installed on the inner surface of the bracket. This mechanism can utilize negative pressure adsorption to further improve the stability of the silicon wafers during transport.

[0004] However, the lack of effective enclosure in the aforementioned structures results in photovoltaic silicon wafers being directly exposed to the external environment during transportation. Suspended particles, dust, fiber debris, and other external contaminants in the air can easily adhere to the surface of the silicon wafers. If these contaminants are not thoroughly removed before subsequent high-temperature processes, they can form diffusion sources or sintering defects, directly reducing the yield of the cells. At the same time, due to the lack of protective structures, accidental collisions can easily occur during transport, causing chipping, micro-cracks, or even fragmentation at the edges of the silicon wafers.

[0005] To address these issues, we provide an adjustable carrier mechanism and method for photovoltaic silicon wafers. Summary of the Invention

[0006] The purpose of this invention is to provide an adjustable photovoltaic silicon wafer transport mechanism and method to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: An adjustable photovoltaic silicon wafer transport mechanism includes a base plate, on both sides of the upper surface of the base plate, mounting side boxes are fixedly connected, and an encapsulation baffle is fixedly connected between the two sides of the mounting side boxes. The upper end of the mounting side box is provided with a sealing component for sealing the box formed by the encapsulation baffle and the mounting side box. Two strip-shaped sliding holes are opened on each of the two mounting side boxes facing each other. Slide rails are fixedly connected to both sides inside the mounting side boxes. A lifting slide is slidably connected between the two slide rails. Two side plates are fixedly connected to one side of the lifting slide, and the side plates are slidably connected to the strip-shaped sliding holes. A lifting plate is provided between the two mounting side boxes. The two ends of the lifting plate are fixedly connected to the side plates on the lifting slide. Several trays are stacked on the lifting plate. Adjustable limiting components for placing photovoltaic silicon wafers are provided in the trays. The two mounting side boxes are equipped with step lifting components for driving the lifting plate to rise or fall in steps.

[0008] As a further aspect of the present invention: the sealing assembly includes a flip cover, the flip cover being rotatably connected to the upper end of the mounting side box on one side of the base plate, a second magnetic block being fixedly connected to the upper end of the mounting side box on the other side of the base plate, and a first magnetic block being fixedly connected to the flip cover to match the second magnetic block, the first magnetic block being used to attract and fix the flip cover together with the second magnetic block.

[0009] As a further embodiment of the present invention: an opening notch is provided at the upper end of the mounting side box near the second magnetic block.

[0010] As a further embodiment of the present invention: the adjustable limiting component includes a central slot formed between the two long sides of the tray, two rows of second adjusting screw holes are formed on both sides of the tray, and second baffle screws are internally threaded into the second adjusting screw holes. A first adjusting screw hole is formed near the middle of the two long sides of the tray, and a first baffle screw is internally threaded into the first adjusting screw hole. The second baffle screw and the first baffle screw are used to form a space for placing photovoltaic silicon wafers.

[0011] As a further embodiment of the present invention: the stepping lifting assembly includes a drive shaft, which is rotatably connected between the lower ends of two mounting side boxes. Each mounting side box has an end shaft rotatably connected to its upper end. Both ends of the end shaft and the drive shaft are fixedly connected to sprockets. A chain is installed between the sprockets on the end shaft and the sprockets on the drive shaft. The lifting carriage is fixedly connected to one side of the chain. The base plate is provided with a rotating assembly for driving the drive shaft to rotate.

[0012] As a further embodiment of the present invention: the rotating assembly includes a ratchet, the ratchet is fixedly connected to the middle of the drive shaft, a rotating seat is fixedly connected to the middle of one side of the upper surface of the base plate, the rotating seat is provided with a drive assembly for driving the ratchet to rotate, and strip-shaped bottom strips are fixedly connected to both sides of the base plate located on the ratchet, and the strip-shaped bottom strips are provided with rotation limiting components for restricting the rotation of the ratchet.

[0013] As a further embodiment of the present invention: the rotation limiting assembly includes a bottom rotating rod, which is rotatably connected between the ends of two strip-shaped bottom bars near the rotating seat. Both ends of the bottom rotating rod are fixedly connected to spring frames, and each end of the spring frame is connected to a second tension spring. The end of the second tension spring away from the spring frame is connected to the middle of the strip-shaped bottom bar. A check pawl is fixedly connected to the middle of the bottom rotating rod, and a stepping hook is fixedly connected to the lower end of the check pawl. A U-shaped lever is provided above the strip-shaped bottom bar, and the U-shaped lever is fixedly connected to both ends of the bottom rotating rod.

[0014] As a further embodiment of the present invention: the driving assembly includes an arc-shaped frame, which is rotatably connected to a rotating seat. A hanging rod is fixedly connected to two mounting side boxes located above the rotating seat. A first tension spring is connected to the hanging rod, and the lower end of the first tension spring is connected to the arc-shaped frame. A limit stop is fixedly connected to the mounting side box located below the hanging rod. The limit stop is used to limit the arc-shaped frame. A pedal is fixedly connected to the end of the arc-shaped frame away from the rotating seat. A mounting box is fixedly connected to the arc-shaped frame near the pedal. An inclined push block is slidably connected inside the mounting box. A spring is installed inside the mounting box. The inclined push block is used to drive a ratchet to rotate when the arc-shaped frame is pressed down.

[0015] As a further embodiment of the present invention: universal wheels are installed at all four corners of the lower end face of the base plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention utilizes a mounting side box, a flip cover, and a sealing baffle to form a closed enclosure, effectively providing physical isolation for the internal photovoltaic silicon wafers. This structure prevents external collisions during transportation from directly impacting the silicon wafers, and also blocks external suspended particles, dust, fiber debris, and other contaminants from adhering to the wafer surface. This significantly reduces the risk of damage and contamination during transport, comprehensively ensuring the safety and reliability of photovoltaic silicon wafer transportation.

[0017] 2. This invention, through its adjustable limiting component, allows for flexible adjustment based on the actual size of the photovoltaic silicon wafers during use, enabling the tray to accommodate photovoltaic silicon wafers of various sizes. This significantly improves the applicability and flexibility of the transport mechanism. Simultaneously, the effective separation between adjacent photovoltaic silicon wafers by the tray prevents mutual compression and friction during transport, further reducing the risk of surface scratches and edge damage.

[0018] 3. The present invention, through the stepping lifting component, can push the placed tray to rise or fall during use, so that the worker can always maintain the same operating height when picking up and placing the tray, without having to repeatedly bend over due to the height difference of different picking and placing positions. This effectively improves the ergonomic performance, reduces the labor intensity of operators, and improves the convenience and efficiency of picking and placing operations. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention.

[0020] Figure 2 This is a schematic diagram of the structure when the flip cover is opened in this invention.

[0021] Figure 3 This is a schematic diagram of the lifting plate in this invention.

[0022] Figure 4 This is a schematic diagram of the adjustable limiting component in this invention.

[0023] Figure 5 This is a schematic diagram of the internal structure of the mounting side box in this invention.

[0024] Figure 6 This is a schematic diagram of the lifting component in this invention.

[0025] Figure 7 This is a schematic diagram of the driving component in this invention.

[0026] Figure 8 This is a schematic diagram of the rotating limiting component in this invention.

[0027] Figure 9 This is a cross-sectional view of the mounting box in this invention.

[0028] The components include: 1. Base plate; 2. First magnetic block; 3. Flip cover; 4. Opening notch; 5. Mounting side box; 6. Drive shaft; 7. Ratchet; 8. Encapsulation baffle; 9. Casters; 10. Tray; 11. Second magnetic block; 12. Lifting plate; 13. Anti-return pawl; 14. First adjusting screw hole; 15. Intermediate slot; 16. First baffle screw; 17. Second adjusting screw hole; 18. Second baffle screw; 19. 20. End shaft; 21. Strip-shaped sliding hole; 22. Lifting slide; 23. Slide rail; 24. Sprocket; 25. Chain; 26. Mounting box; 27. Spring; 28. Strip-shaped bottom strip; 29. ​​Arc-shaped frame; 30. First tension spring; 31. Hanging rod; 32. Rotating seat; 33. Limiting stop bar; 34. Stepping hook; 35. Bottom rotating rod; 36. Spring frame; 37. U-shaped lever frame; 38. Second tension spring; 39. Inclined push block. Detailed Implementation

[0029] 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 scope of protection of the present invention.

[0030] Please see Figures 1-9 In this embodiment of the invention, the adjustable photovoltaic silicon wafer transport mechanism includes a base plate 1, and four casters 9 are installed at the four corners of the lower end face of the base plate 1. The casters 9 can facilitate the flexible movement of the base plate 1.

[0031] Mounting side boxes 5 are fixedly connected to both sides of the upper surface of the base plate 1. A sealing baffle 8 is fixedly connected between the two sides of the mounting side boxes 5. A sealing assembly is provided at the upper end of each mounting side box 5 to seal the box formed by the sealing baffle 8 and the mounting side boxes 5. The sealing assembly includes a flip cover 3, which is rotatably connected to the upper end of the mounting side box 5 on one side of the base plate 1. A second magnetic block 11 is fixedly connected to the upper end of the mounting side box 5 on the other side of the base plate 1. A first magnetic block 2, which matches the second magnetic block 11, is fixedly connected to the flip cover 3. A magnetic block 2 is used to engage with a second magnetic block 11 to fix the flip cover 3; an opening notch 4 is provided at the upper end of the mounting side box 5 near the second magnetic block 11; the flip cover 3 can close the upper end of the box formed by the opening notch 4 and the mounting side box 5, and the flip cover 3 is fixed by engaging the first magnetic block 2 and the second magnetic block 11, making it easier to fix and unlock the flip cover 3. At the same time, the opening notch 4 makes it easier for the operator to apply force to the flip cover 3, making it easier to open the flip cover 3.

[0032] Two strip-shaped sliding holes 20 are opened on each of the two mounting side boxes 5 facing each other. Slide rails 22 are fixedly connected to both sides of the interior of the mounting side box 5. A lifting slide 21 is slidably connected between the two slide rails 22. Two side plates are fixedly connected to one side of the lifting slide 21. The side plates are slidably connected to the strip-shaped sliding holes 20. A lifting plate 12 is provided between the two mounting side boxes 5. The two ends of the lifting plate 12 are fixedly connected to the side plates on the lifting slide 21. Several trays 10 are stacked on the lifting plate 12. The trays 10 are provided with adjustable limiting components for placing photovoltaic silicon wafers. The lifting plate 12 is used to support the trays 10, which facilitates the stacking of the trays 10.

[0033] The adjustable limiting component includes a central slot 15 formed between the two long sides of the tray 10. Two rows of second adjusting screw holes 17 are formed on both sides of the tray 10. Second baffle screws 18 are threaded into the second adjusting screw holes 17. First adjusting screw holes 14 are formed near the center of the two long sides of the tray 10. First baffle screws 16 are threaded into the first adjusting screw holes 14. The second baffle screws 18 and the first baffle screws 16 form a space for placing photovoltaic silicon wafers. The second baffle screws 18 can be installed into the corresponding second adjusting screw holes 17 according to the size of the photovoltaic silicon wafer, while the first baffle screws 16 are installed into the corresponding first adjusting screw holes 14. This allows for flexible adjustment based on the actual size of the photovoltaic silicon wafer during use, enabling the tray 10 to accommodate photovoltaic silicon wafers of various sizes.

[0034] Two mounting side boxes 5 are equipped with step lifting components for driving the lifting plate 12 to rise or fall in steps. The step lifting components include a drive shaft 6, which is rotatably connected between the lower ends of the two mounting side boxes 5. Each mounting side box 5 is rotatably connected to an end shaft 19. Both ends of the end shaft 19 and the drive shaft 6 are fixedly connected to sprockets 23. A chain 24 is installed between the sprockets 23 on the end shaft 19 and the sprockets 23 on the drive shaft 6. The lifting carriage 21 is fixedly connected to one side of the chain 24. The base plate 1 is equipped with a rotating component for driving the drive shaft 6 to rotate. The rotating component can drive the drive shaft 6 to rotate during operation. The rotation of the drive shaft 6 can drive the sprockets 23 to rotate. The rotation of the sprockets 23 can drive the chain 24 to rotate. The rotation of the chain 24 can drive the lifting carriage 21 to rise or fall along the slide rail 22. The lifting carriage 21 can drive the lifting plate 12 to achieve the raising and lowering of the lifting plate 12.

[0035] The rotating assembly includes a ratchet 7, which is fixedly connected to the middle of the drive shaft 6. A rotating seat 31 is fixedly connected to the middle of one side of the upper end face of the base plate 1. The rotating seat 31 is provided with a drive assembly for driving the ratchet 7 to rotate. The drive assembly includes an arc-shaped frame 28, which is rotatably connected to the rotating seat 31. A hanging rod 30 is fixedly connected to the two mounting side boxes 5 located above the rotating seat 31. A first tension spring 29 is connected to the hanging rod 30, and the lower end of the first tension spring 29 is connected to the arc-shaped frame 28. A limit stop 32 is fixedly connected to the mounting side box 5 located below the hanging rod 30. The limit stop 32 is used to limit the arc-shaped frame 28. A pedal is fixedly connected to the end of the arc-shaped frame 28 away from the rotating seat 31. A mounting box 25 is fixedly connected to the arc-shaped frame 28 near the pedal. An inclined surface is slidably connected inside the mounting box 25. The inclined push block 38, with a spring 26 installed inside the mounting box 25, is used to drive the ratchet 7 to rotate when the arc frame 28 is pressed down. When it is necessary to raise the lifting plate 12, the arc frame 28 is rotated downward around the rotating seat 31 by stepping on the pedal. When the arc frame 28 moves downward, the inclined push block 38 will lock the ratchet 7 and drive the ratchet 7 to rotate, causing the drive shaft 6 to rotate at a certain angle. After the drive shaft 6 rotates, it drives the chain 24 and the sprocket 23 to run, causing the lifting plate 12 to rise a certain distance. When the pedal is released, the arc frame 28 is reset under the action of the first tension spring 29. Due to the inclined action of the inclined push block 38, the arc frame 28 will not drive the ratchet 7 to rotate when it is reset. After the arc frame 28 is fully reset, the inclined push block 38 will disengage from the ratchet 7. By stepping on the pedal, each press of the pedal can raise the lifting plate 12 a certain distance, thereby realizing the step-by-step rise of the lifting plate 12.

[0036] The base plate 1 has strip-shaped bottom bars 27 fixedly connected to both sides of the ratchet 7. Each strip-shaped bottom bar 27 has a rotation limiting assembly for restricting the rotation of the ratchet 7. The rotation limiting assembly includes a bottom rotating rod 34, which is rotatably connected between the ends of the two strip-shaped bottom bars 27 near the rotating seat 31. Spring frames 35 are fixedly connected to both ends of the bottom rotating rod 34, and second tension springs 37 are connected to the ends of the spring frames 35. The end of the second tension spring 37 away from the spring frame 35 is connected to the middle of the strip-shaped bottom bar 27. A check pawl 13 is fixedly connected to the middle of the bottom rotating rod 34, and a stepping hook 33 is fixedly connected to the lower end of the check pawl 13. A U-shaped lever 36 is provided above the strip-shaped bottom bars 27, and the U-shaped lever 36 is fixedly connected to both ends of the bottom rotating rod 34. When it is necessary to lower the lifting plate 12, the U-shaped lever 36 is pushed upwards by foot, at which point the stop pawl... When the return pawl 13 disengages from the ratchet 7, the lifting plate 12 descends under the weight of the tray 10. The downward movement of the lifting plate 12 drives the lifting slide 21 to move synchronously. The movement of the lifting slide 21 drives the chain 24 and sprocket 23 to rotate, which in turn drives the ratchet 7 to rotate. After the return pawl 13 disengages from the ratchet 7, the ratchet 7 rotates one tooth. Then, the ratchet 7 is blocked by the raised step pawl 33, causing the ratchet 7 to stop. Then, the U-shaped lever 36 is released and resets under the action of the second tension spring 37. After the U-shaped lever 36 resets, it drives the step pawl 33 and the return pawl 13 to reset synchronously. During the reset, the step pawl 33 disengages from the ratchet 7 first. After the ratchet 7 rotates one tooth, it is blocked again by the reset return pawl 13. Therefore, by pushing the U-shaped lever 36 upward with the foot, each push will cause the lifting plate 12 to move downward a certain distance, thus achieving the step-down descent of the lifting plate 12.

[0037] The working principle of this invention is as follows: During use, the base plate 1 moves to the working position with the help of the casters 9. The flip cover 3 is opened through the opening notch 4, separating the first magnetic block 2 from the second magnetic block 11. According to the specifications of the photovoltaic silicon wafer, the first baffle screw 16 is screwed into the corresponding first adjusting screw hole 14, and the second baffle screw 18 is screwed into the corresponding second adjusting screw hole 17 to form a suitable limiting space. After the silicon wafer is placed in the tray 10, several trays 10 are stacked on the lifting plate 12, and then the flip cover 3 is closed, using the attraction between the first magnetic block 2 and the second magnetic block 11 to seal the box.

[0038] When silicon wafers need to be accessed layer by layer, the height is adjusted using a stepper lifting assembly. During step-up, the pedal on the arc-shaped frame 28 is stepped on. The arc-shaped frame 28 is pressed down around the rotating seat 31 and constrained by the limit stop 32. The inclined push block 38 inside the mounting box 25, under the action of the spring 26, engages the ratchet 7, driving the drive shaft 6 to rotate a certain angle. The drive shaft 6 drives the chain 24 through the sprocket 23, causing the lifting slide 21, fixed to the chain 24, to rise along the slide rail 22. This, in turn, through the cooperation of the side plate and the strip-shaped sliding hole 20, raises the lifting plate 12 and the tray 10 a certain distance. After releasing the pedal, the first tension spring 29 pulls the arc-shaped frame 28 back to its original position, and the inclined push block 38 slips on the tooth surface of the ratchet 7, maintaining the height of the lifting plate 12. Repeated stepping achieves step-up.

[0039] During the step-down descent, use your foot to push the U-shaped lever 36 upwards. The bottom rotating rod 34 rotates and stretches the second tension spring 37, causing the check pawl 13 to disengage from the ratchet 7. Simultaneously, the stepping hook 33 lifts up. Under the weight of the tray 10 and the lifting plate 12, the lifting slide 21 drives the ratchet 7 to reverse via the chain 24. After the ratchet 7 rotates one tooth, it is blocked by the stepping hook 33, and the lifting plate 12 descends a certain distance. Release the U-shaped lever 36, and the second tension spring 37 resets the bottom rotating rod 34. The check pawl 13 re-engages with the ratchet 7, and the stepping hook 33 disengages. Repeatedly pushing the lever will cause the lifting plate 12 to descend step-down until the desired height is reached.

[0040] In addition, this invention can be used for short-distance transport of photovoltaic silicon wafers between workshops. At the same time, the invention has a square shape, which makes it easy to fit and place, and it is also convenient to use transport vehicles for long-distance transportation.

[0041] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Although this specification describes embodiments, not every embodiment contains only one technical solution. This method of description is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An adjustable photovoltaic silicon wafer transport mechanism, comprising a base plate (1), characterized in that: The base plate (1) has two mounting side boxes (5) fixedly connected to both sides of its upper end face. An encapsulation baffle (8) is fixedly connected between the two sides of the mounting side boxes (5). The upper end of the mounting side box (5) is provided with a sealing component for sealing the box formed by the encapsulation baffle (8) and the mounting side box (5). Two strip-shaped sliding holes (20) are opened on opposite sides of the two mounting side boxes (5). Slide rails (22) are fixedly connected to both sides inside the mounting side boxes (5). Lifting slides (21) are slidably connected between the two slide rails (22). Two side plates are fixedly connected to one side of the lifting slides (21). The side plates are slidably connected to the strip-shaped sliding holes (20). A lifting plate (12) is provided between the two mounting side boxes (5). The two ends of the lifting plate (12) are fixedly connected to the side plates on the lifting slides (21). Several trays (10) are stacked on the lifting plate (12). An adjustable limiting component for placing photovoltaic silicon wafers is provided in the tray (10). The two mounting side boxes (5) are equipped with step lifting components for driving the lifting plate (12) to step up or down.

2. The adjustable photovoltaic silicon wafer transport mechanism according to claim 1, characterized in that, The sealing assembly includes a flip cover (3), which is rotatably connected to the upper end of the mounting side box (5) on one side of the base plate (1). A second magnetic block (11) is fixedly connected to the upper end of the mounting side box (5) on the other side of the base plate (1). A first magnetic block (2) that matches the second magnetic block (11) is fixedly connected to the flip cover (3). The first magnetic block (2) is used to attract the second magnetic block (11) together to fix the flip cover (3).

3. The adjustable photovoltaic silicon wafer transport mechanism according to claim 2, characterized in that, The mounting side box (5) has an opening notch (4) at the upper end near the second magnetic block (11).

4. The adjustable photovoltaic silicon wafer transport mechanism according to claim 1, characterized in that, The adjustable limiting component includes a central slot (15) formed between the two long sides of the tray (10). Two rows of second adjusting screw holes (17) are formed on both sides of the tray (10). A second baffle screw (18) is threaded into the second adjusting screw hole (17). A first adjusting screw hole (14) is formed near the middle of the two long sides of the tray (10). A first baffle screw (16) is threaded into the first adjusting screw hole (14). The second baffle screw (18) and the first baffle screw (16) are used to form a space for placing photovoltaic silicon wafers.

5. The adjustable photovoltaic silicon wafer transport mechanism according to claim 1, characterized in that, The stepping lifting assembly includes a drive shaft (6), which is rotatably connected between the lower ends of two mounting side boxes (5). Each mounting side box (5) is rotatably connected to an end shaft (19). Both ends of the end shaft (19) and the drive shaft (6) are fixedly connected to sprockets (23). A chain (24) is installed between the sprockets (23) on the end shaft (19) and the sprockets (23) on the drive shaft (6). The lifting slide (21) is fixedly connected to one side of the chain (24). The base plate (1) is provided with a rotating assembly for driving the drive shaft (6) to rotate.

6. The adjustable photovoltaic silicon wafer transport mechanism according to claim 5, characterized in that, The rotating assembly includes a ratchet (7), which is fixedly connected to the middle of the drive shaft (6). A rotating seat (31) is fixedly connected to the middle of one side of the upper end face of the base plate (1). The rotating seat (31) is provided with a drive assembly for pushing the ratchet (7) to rotate. A strip bottom bar (27) is fixedly connected to both sides of the base plate (1) on the ratchet (7). The strip bottom bar (27) is provided with a rotation limiting assembly for limiting the rotation of the ratchet (7).

7. The adjustable photovoltaic silicon wafer transport mechanism according to claim 6, characterized in that, The rotation limiting assembly includes a bottom rotating rod (34), which is rotatably connected between the ends of two strip bottom bars (27) near the rotating seat (31). Both ends of the bottom rotating rod (34) are fixedly connected to spring frames (35), and the ends of the spring frames (35) are connected to second tension springs (37). The end of the second tension spring (37) away from the spring frame (35) is connected to the middle of the strip bottom bar (27). A check pawl (13) is fixedly connected in the middle of the bottom rotating rod (34), and a stepping hook pawl (33) is fixedly connected at the lower end of the check pawl (13). A U-shaped lever (36) is provided above the strip bottom bar (27), and the U-shaped lever (36) is fixedly connected to both ends of the bottom rotating rod (34).

8. The adjustable photovoltaic silicon wafer transport mechanism according to claim 6, characterized in that, The drive assembly includes an arc frame (28), which is rotatably connected to a rotating seat (31). A hanging rod (30) is fixedly connected between two mounting side boxes (5) located above the rotating seat (31). A first tension spring (29) is connected to the hanging rod (30). The lower end of the first tension spring (29) is connected to the arc frame (28). A limit stop (32) is fixedly connected to the mounting side box (5) located below the hanging rod (30). The limit stop (32) is used to limit the arc frame (28). A pedal is fixedly connected to the end of the arc frame (28) away from the rotating seat (31). A mounting box (25) is fixedly connected to the arc frame (28) near the pedal. An inclined push block (38) is slidably connected inside the mounting box (25). A spring (26) is installed inside the mounting box (25). The inclined push block (38) is used to drive the ratchet (7) to rotate when the arc frame (28) is pressed down.

9. The adjustable photovoltaic silicon wafer transport mechanism according to claim 1, characterized in that, The base plate (1) is equipped with casters (9) at the four corners of its lower end face.

10. A method of using the adjustable photovoltaic silicon wafer transport mechanism according to any one of claims 1-9, characterized in that, Includes the following steps: Step 1: When in use, the base plate (1) is moved to the working position by means of the caster wheel (9). The flip cover (3) is opened by opening the cover notch (4) so ​​that the first magnetic block (2) and the second magnetic block (11) are separated. According to the specifications of the photovoltaic silicon wafer, the first baffle screw (16) is screwed into the corresponding first adjustment screw hole (14) and the second baffle screw (18) is screwed into the corresponding second adjustment screw hole (17) to form a suitable limiting space. After the silicon wafer is placed in the tray (10), several trays (10) are stacked on the lifting plate (12). Then the flip cover (3) is closed and the box is closed by the attraction of the first magnetic block (2) and the second magnetic block (11). Step 2: When it is necessary to access silicon wafers layer by layer, adjust the height through the stepping lifting assembly. When stepping up, step on the pedal on the arc frame (28). The arc frame (28) presses down around the rotating seat (31) and is constrained by the limit stop (32). The inclined push block (38) in the mounting box (25) is stuck in the ratchet (7) under the action of the spring (26), driving the drive shaft (6) to rotate a certain angle. The drive shaft (6) drives the chain (24) to run through the sprocket (23). The lifting slide (21) fixed to the chain (24) rises along the slide rail (22). Then, through the cooperation of the side plate and the strip-shaped sliding hole (20), the lifting plate (12) and the tray (10) rise a certain distance. After releasing the pedal, the first tension spring (29) pulls the arc frame (28) to reset. The inclined push block (38) slips on the tooth surface of the ratchet (7). The height of the lifting plate (12) is maintained. Stepping up can be achieved by repeatedly stepping. Step 3: When descending in steps, use your foot to push the U-shaped lever (36) upwards. The bottom rotating rod (34) rotates and stretches the second tension spring (37), causing the check pawl (13) to disengage from the ratchet (7). At the same time, the stepping hook (33) lifts up. Under the gravity of the tray (10) and the lifting plate (12), the lifting slide (21) drives the ratchet (7) to reverse through the chain (24). After the ratchet (7) turns one tooth, it is blocked by the stepping hook (33). The lifting plate (12) descends a certain distance. Release the U-shaped lever (36), and the second tension spring (37) resets the bottom rotating rod (34). The check pawl (13) re-engages into the ratchet (7), and the stepping hook (33) separates. Repeatedly pushing the lever will cause the lifting plate (12) to descend in steps until the desired height is reached.

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