Transferring equipment of photovoltaic silicon wafer coating jig

Abstract

The invention provides transferring equipment for a photovoltaic silicon wafer coating jig, and relates to the technical field of photovoltaic silicon wafer manufacturing, the transferring equipment comprises a supporting bottom frame, a plurality of universal wheels are connected to the bottom of the supporting bottom frame, lifting mechanisms are symmetrically connected to the inner side of the supporting bottom frame, the tops of the lifting mechanisms are connected with a transferring frame, and horizontal rollers are arranged at the top of the transferring frame at intervals; one end of the transshipment frame is connected with a fixed limiting plate, the other end of the transshipment frame is connected with a lifting limiting piece, and vertical limiting pieces are symmetrically arranged in the conveying direction of the transshipment frame. The technical problems that when the jig is conveyed into the coating equipment, a plurality of workers need to be tightly matched and need to cooperatively lift the heavy jig to a conveying belt at an equipment inlet, and the operation process which highly depends on manpower and is tedious consumes a large amount of manpower resources, increases the production cost and has huge potential safety hazards are solved.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of photovoltaic silicon wafer production, and in particular to a transfer device for a photovoltaic silicon wafer coating fixture. Background Art

[0002] During the production process of solar cells, in order to improve the coating efficiency, 270 silicon wafers are sent into the coating equipment at the same time. Before entering the coating equipment, the silicon wafers are placed on a special jig by a robot. The jig carries the silicon wafers to the conveyor belt of the coating equipment. After the silicon wafers are coated in the equipment, they are picked up into the basket, and the jig is sent out of the coating equipment by the conveyor belt.

[0003] The existing photovoltaic silicon wafer coating has the following defects: The large jig carrying 270 silicon wafers is particularly difficult to deliver to the coating equipment due to its huge size. This process usually requires the close cooperation of multiple workers, who need to work together to lift the heavy jig to the conveyor belt at the entrance of the equipment. Similarly, when the empty jig is sent out of the equipment by the conveyor belt, multiple workers are also required to catch it to ensure its safe landing. This highly manpower-dependent and cumbersome operation process not only consumes a lot of human resources and increases production costs, but more importantly, it hides huge safety hazards. In the process of lifting the jig, any omissions in the cooperation between workers may cause serious safety accidents.

[0004] It should be noted that the above contents belong to the technical cognition scope of the inventor. Since the technical contents in this field are vast and too complicated, the above contents of this application do not necessarily constitute prior art. Summary of the invention

[0005] 1. Technical problem to be solved by the invention: The present invention provides a transfer device for a photovoltaic silicon wafer coating jig, which is used to solve the technical problems existing in the above-mentioned background technology.

[0006] 2. Technical solution: To achieve the above-mentioned purpose, the technical solution provided by the present invention is: a transfer device for a photovoltaic silicon wafer coating jig, comprising a supporting bottom frame, a plurality of universal wheels connected to the bottom of the supporting bottom frame, a symmetrically arranged lifting mechanism connected to the inner side of the supporting bottom frame, a top of the lifting mechanism connected to a transfer frame, horizontal rollers are arranged at intervals on the top of the transfer frame, one end of the transfer frame is connected to a fixed limit plate, and the other end of the transfer frame is connected to a lifting limit piece, and vertical limit pieces are symmetrically arranged in the conveying direction of the transfer frame. The device is used to transfer the photovoltaic silicon wafer coating jig. When working, the coating jig loaded with silicon wafers is pushed inward from the lifting limit piece end to the transfer frame direction until the coating jig abuts against the fixed limit plate, and the lifting limit piece is raised to limit the coating jig to prevent the coating jig from shaking during transportation and causing damage to the silicon wafer. Since a plurality of horizontal rollers are arranged on the top of the device, the staff can conveniently transfer the coating jig The jig is pushed in without the cooperation of multiple people to lift the coating jig. After the coating jig is placed on the transfer frame, the operator can push the entire equipment to the subsequent silicon wafer coating conveyor belt through the universal wheel, lower the lifting limiter to stop the limit, and then push the coating jig outward. After waiting for the silicon wafer loading on the coating jig to be completed, the empty coating jig is pushed inward to limit the limit, and then the entire device moves to the coating jig loading position to load again, and the conveying operation of the coating jig is completed in this cycle. In order to adapt to coating conveyor belts of different heights, a lifting mechanism is set to adjust the height of the top transfer frame. This device only requires 1 to 2 workers to complete the loading and unloading of the coating jig, and the worker only needs to push the device to push the coating jig to the conveyor belt at the entrance of the coating equipment. The transfer process of the jig from the transfer equipment to the transmission belt is smooth and without shaking, and the jig will not be misplaced, which saves the need to re-load the jig due to misplacement, thereby improving production efficiency.

[0007] Furthermore, the lifting mechanism includes a first diagonal support rod, the middle part of the first diagonal support rod is rotatably connected to the second diagonal support rod, the first diagonal support rod and the second diagonal support rod form an "X" shape structure, the first diagonal support rod and the second diagonal support rod are symmetrically arranged and connected to the second connecting rod on one side through a first connecting rod, the first connecting rod and the second connecting rod are connected to guide wheels at both ends, and the guide wheels are respectively slidably connected to the supporting bottom frame and the transfer frame, the first connecting rod and the second connecting rod are also connected through a third connecting rod, the first connecting rod at the bottom is hinged to the first hydraulic cylinder, the end of the first hydraulic cylinder is hinged to the third connecting rod, and the first hydraulic cylinder is connected to the pressing device through a hydraulic pipeline.

[0008] Furthermore, the pressing device is arranged on one side of the supporting bottom frame, and the pressing device includes a second hydraulic cylinder, the outer arm of the second hydraulic cylinder is connected to the base, the base is slidably connected to a guide plate, the top of the guide plate is connected to a second connecting rod, the outer side of the second connecting rod is connected to an L-shaped foot rod, a limiting ring is provided at the bottom of the guide plate, a first spring is provided at the bottom of the limiting ring, the first spring is provided at the top of the second hydraulic cylinder, a pressure relief pedal is provided on the side of the second hydraulic cylinder, and the second hydraulic cylinder is connected to the second hydraulic cylinder through a hydraulic pipeline.

[0009] Furthermore, positioning grooves are spaced apart at the top of the transfer frame, and the top of the positioning grooves is slidably connected to the two symmetrically arranged vertical limit members, and the vertical limit members include a sliding seat, and the outer side of the top of the sliding seat is connected to a concave block, and the inner side of the concave block is rotatably connected to a vertical roller, and a threaded hole is opened on the sliding seat, and the threaded hole matches the limit screw.

[0010] Furthermore, a receiving groove is opened in the middle of the positioning slide groove, and a second spring is arranged in the receiving groove. Both ends of the second spring are connected to one end of the traction rope, and the other end of the traction rope is connected to the sliding seat.

[0011] Furthermore, a second slide groove is symmetrically opened on one side of the top of the transfer frame, the second slide groove is slidably connected to the lifting limit block, a lifting groove is opened on the top of the lifting limit block, a third spring is arranged in the lifting groove, the top of the third spring is connected to the limit block, a first magnetic block is arranged on one side of the limit block, a second magnetic block is arranged at the corresponding position of the lifting limit block, the side of the lifting limit block is connected to the positioning block, and a positioning hole is opened on the positioning block.

[0012] Furthermore, a damper is arranged in a rectangular shape in the middle of the transfer frame to cooperate with a shock-absorbing spring, and the top of the damper is connected to a lifting plate.

[0013] Furthermore, one side of the top of the supporting bottom frame is connected to a hand-pushing railing, and a fixing plate is connected to the hand-pushing railing.

[0014] Furthermore, the horizontal rollers are evenly arranged on the top of the transfer frame in a rectangular design, and weight-reducing grooves are spaced apart on the transfer frame.

[0015] 3. Beneficial effects: Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects: The present invention is reasonably designed. The present invention can place the silicon wafer coating jig on a horizontal roller and send it into the transfer frame, and then fix it by a fixed limit plate and a lifting limit member, so that the silicon wafer will not be damaged by friction caused by shaking during the transportation process. In addition, vertical limit members are also arranged on both sides of the device to limit the other two directions of the coating jig, further improving the stability. A lifting mechanism is also arranged to adapt to silicon wafer coating equipment of different specifications. The vertical limiter and the lifting limiter of the device can be adjusted within a certain range, so as to move coating jigs of different specifications.

[0016] It should be noted that the structures not introduced in the present invention are the same as the prior art or can be implemented by using the prior art, and are not described in detail here because they do not involve the design points and improvement directions of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 For the present invention Figure 1 A schematic diagram of the enlarged structure at point A; Figure 3 For the present invention Figure 1 A schematic diagram of the enlarged structure at B; Figure 4 It is a schematic diagram of the reprint frame structure of the present invention; Figure 5 For the present invention Figure 4 A schematic diagram of the enlarged structure at C; Figure 6 It is a side structural schematic diagram of the present invention; Figure 7 It is a bottom viewing angle structural schematic diagram of the present invention; Figure 8 For the present invention Figure 7 Enlarged structural diagram at D.

[0018] Reference numerals: 1. Supporting bottom frame; 11. Hand push rail; 12. Fixed plate; 2. Universal wheel; 3. Lifting mechanism; 31. First diagonal support rod; 32. Second diagonal support rod; 33. First connecting rod; 34. Second connecting rod; 35. Guide wheel; 36. Third connecting rod; 37. First hydraulic cylinder; 38. Pressing device; 381. Second hydraulic cylinder; 382. Base; 383. Guide plate; 384. Second connecting rod; 385. L-shaped pedal rod; 386. Limiting ring; 387. First spring; 388. Pressure relief pedal; 4. Transfer frame; 41. Positioning slide; 411. Accommodating groove; 412. Second spring; 42. Second sliding groove; 43. Lifting limit block; 44. Lifting groove; 45. Limit block; 46. First magnetic block; 47. Second magnetic block; 48. Positioning block; 49. Positioning hole; 401. Damper; 402. Shock-absorbing spring; 403. Lifting plate; 11. Hand push railing; 5. Horizontal roller; 51. Weight reduction groove; 6. Fixed limit plate; 7. Lifting limit piece; 8. Vertical limit piece; 81. Sliding seat; 82. Concave block; 83. Vertical roller; 84. Threaded hole; 85. Limit screw. DETAILED DESCRIPTION

[0019] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "page", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0022] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", "provided with", "provided on" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] It should be noted that the structures not introduced in the present invention do not involve the design points and improvement directions of the present invention, and can adopt the existing technologies known to those skilled in the art.

[0024] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0025] Refer to the attached Figure 1-8 , a transfer device for a photovoltaic silicon wafer coating jig comprises a supporting bottom frame 1, a plurality of universal wheels 2 are connected to the bottom of the supporting bottom frame 1, a symmetrically arranged lifting mechanism 3 is connected to the inner side of the supporting bottom frame 1, the top of the lifting mechanism 3 is connected to a transfer frame 4, and horizontal rollers 5 are arranged at intervals on the top of the transfer frame 4, one end of the transfer frame 4 is connected to a fixed limiting plate 6, and the other end of the transfer frame 4 is connected to a lifting limiting member 7, and vertical limiting members 8 are symmetrically arranged in the conveying direction of the transfer frame 4. The device is used to transfer the photovoltaic silicon wafer coating jig. When working, the coating jig loaded with silicon wafers is pushed inward from the lifting limiting member 7 end to the transfer frame 4 until the coating jig abuts against the fixed limiting plate 6, and the lifting limiting member 7 is raised to limit the coating jig to prevent the coating jig from shaking during transportation and causing damage to the silicon wafer. Since a plurality of horizontal rollers 5 are arranged on the top of the device, the staff can easily push the coating jig The coating jig is then pushed in and there is no need for multiple people to cooperate in lifting the coating jig. After the coating jig is placed on the transfer frame 4, the operator can push the entire device to the subsequent silicon wafer coating conveyor belt through the universal wheel 2, and then lower the lifting limit member 7 to stop the limit, and then push the coating jig outward, and wait for the silicon wafer on the coating jig to be loaded after completion, and then push the empty coating jig inward to limit the position, and then the entire device moves to the coating jig loading position to load again, and the conveying operation of the coating jig is completed in this cycle. In order to adapt to coating conveyor belts of different heights, a lifting mechanism 3 is set to adjust the height of the top transfer frame 4. The device only requires 1 to 2 workers to complete the loading and unloading of the coating jig, and the worker only needs to push the device to push the coating jig into the conveyor belt at the entrance of the coating equipment. The transfer process of the jig from the transfer equipment to the transmission belt is smooth and without shaking, and the jig will not be misplaced, which saves the need to re-load the jig due to misplacement, thereby improving production efficiency.

[0026] The lifting mechanism 3 includes a first diagonal support rod 31, the middle part of the first diagonal support rod 31 is rotatably connected to the second diagonal support rod 32, the first diagonal support rod 31 and the second diagonal support rod 32 form an "X" shape structure, the first diagonal support rod 31 and the second diagonal support rod 32 are symmetrically arranged, and one side is connected to the second connecting rod 34 through a first connecting rod 33, and the first connecting rod 33 and the second connecting rod 34 are connected to guide wheels 35 at both ends, and the guide wheels 35 are respectively slidably connected to the supporting bottom frame 1 and the transfer frame 4, and the first connecting rod 33 and the second connecting rod 34 are also connected through a third connecting rod 36, and the first connecting rod 33 at the bottom is hinged to the first hydraulic cylinder 37, and the first connecting rod 33 at the bottom is hinged to the first hydraulic cylinder 37. The third connecting rod 36 is hingedly connected to the end of a hydraulic cylinder 37. The first hydraulic cylinder 37 is connected to a pressing device 38 through a hydraulic pipeline. The lifting mechanism 3 can lift the top transfer frame 4 to adapt to the conveyor belts of the coating equipment at different heights. When the height needs to be adjusted, the first hydraulic cylinder 37 is driven by the pressing device 38 to perform lifting operations. When the first hydraulic cylinder 37 is extended, it will drive the first connecting rod 33 and the second connecting rod 34 to slide inward along the supporting bottom frame 1 and the transfer frame 4, thereby increasing the height of the entire equipment. When the first hydraulic cylinder 37 retracts, the first connecting rod 33 and the second connecting rod 34 slide outward along the supporting bottom frame 1 and the transfer frame 4, thereby lowering the height of the entire equipment.

[0027] The pressing device 38 is arranged on one side of the supporting bottom frame 1, and the pressing device 38 includes a second hydraulic cylinder 381, the outer arm of the second hydraulic cylinder 381 is connected to the base 382, ​​the base 382 is slidably connected to the guide plate 383, the top of the guide plate 383 is connected to the second connecting rod 384, the outer side of the second connecting rod 384 is connected to the L-shaped foot pedal 385, the bottom of the guide plate 383 is provided with a limiting ring 386, the bottom of the limiting ring 386 is provided with a first spring 387, the first spring 387 is provided at the top of the second hydraulic cylinder 381, the side of the second hydraulic cylinder 381 is provided with a pressure relief pedal 388, and the second hydraulic cylinder 381 is provided with a pressure relief pedal 388. The pressure cylinder 381 is connected to the second hydraulic cylinder 381 through a hydraulic pipeline. The pressing device 38 is used to adjust the extension and retraction of the first hydraulic cylinder 37. When the first hydraulic cylinder 37 needs to be extended, the operator presses the L-shaped pedal rod 385 with his foot, and the second connecting rod 384 will drive the guide plate 383 to move downward, and then the hydraulic oil will be transported to the second hydraulic cylinder 381 through the hydraulic pipeline. Subsequently, under the action of the first spring 387, the limit ring 386 and the guide plate 383 will be reset. The operator can complete the lifting of the transfer frame 4 by reciprocatingly stepping on the L-shaped foot pedal. When the transfer frame 4 needs to be lowered, just step on the pressure relief pedal 388.

[0028] The top of the transfer frame 4 is spaced apart with positioning grooves 41, and the top of the positioning grooves 41 is slidably connected to the two symmetrically arranged vertical limit members 8, and the vertical limit member 8 includes a sliding seat 81, and the outer side of the top of the sliding seat 81 is connected to a concave block 82, and the inner side of the concave block 82 is rotatably connected to a vertical roller 83. A threaded hole 84 is opened on the sliding seat 81, and the threaded hole 84 is matched with a limit screw 85. The two symmetrically arranged vertical rollers 83 can guide the sliding of the two sides of the coating jig, and the sliding seat 81 can slide in the positioning grooves 41. The distance between the two sliding seats 81 can be adjusted to adapt to the transfer operation of coating jigs of different widths. When the spacing between the sliding seats 81 needs to be adjusted, the limit screw 85 can be unscrewed, and the limit screw 85 can be locked after the sliding seat 81 moves to the preset position.

[0029] A receiving groove 411 is opened in the middle of the positioning slide groove 41, and a second spring 412 is arranged in the receiving groove 411. Both ends of the second spring 412 are connected to one end of the traction rope, and the other end of the traction rope is connected to the sliding seat 81. After the coating jig enters the transfer frame 4 through the horizontal roller 5, the limit screw 85 can be loosened. Under the action of the spring, the concave blocks 82 on both sides automatically move toward the frame of the coating jig, and then adapt to the coating jig, and then tighten the limit screw 85.

[0030] A second slide groove 42 is symmetrically provided on one side of the top of the transfer frame 4, and the second slide groove 42 is slidably connected to a lifting limit block 43. A lifting groove 44 is provided on the top of the lifting limit block 43, and a third spring is provided in the lifting groove 44. A limit block 45 is connected to the top of the third spring. A first magnetic block 46 is provided on one side of the limit block 45, and a second magnetic block 47 is provided at a corresponding position of the lifting limit block 43. A positioning block 48 is connected to the side of the lifting limit block 43, and a positioning hole 49 is provided on the positioning block 48. Since different coating jigs have different lengths, in order to prevent the coating jig from being limited on the horizontal roller 5 It will slide back and forth, and a lifting limit block 43 and a limit clamp block 45 are set. Before transporting the coating jig, the limit clamp block 45 is adsorbed by the first magnetic block 46 and the second magnetic block 47, which will not affect the placement of the coating jig. When the coating jig is placed, the operator manually pushes up the top limit clamp block 45, and under the action of the spring, the limit clamp block 45 moves upward, and then moves the lifting limit block 43 toward the frame of the coating jig, thereby limiting the coating jig, and finally uses screws to connect and fix it with the positioning hole 49. When discharging, press the limit clamp block 45 again to adsorb the first magnetic block 46 and the second magnetic block 47.

[0031] A damper 401 is arranged in the middle of the transfer frame 4 in a rectangular shape to cooperate with a shock-absorbing spring 402. The top of the damper 401 is connected to a lifting plate 403. The lifting plate 403 cooperates with the shock-absorbing spring 402 at the bottom to support and stabilize the coating jig at the top. When installing the coating jig, just press the lifting plate 403 downwards slightly. When the coating jig completely enters the transfer frame 4, the lifting plate 403 will abut against the transfer frame 4.

[0032] One side of the top of the supporting bottom frame 1 is connected to a hand-pushing railing 11 , and a fixing plate 12 is connected to the hand-pushing railing 11 , so that an operator can move the entire device through the hand-pushing railing 11 .

[0033] The horizontal rollers 5 are evenly arranged on the top of the transfer frame 4 in a rectangular design. The transfer frame 4 is provided with weight-reducing grooves 51 at intervals. The weight-reducing grooves 51 can reduce the weight of the entire device. The rectangular-designed horizontal rollers 5 are conducive to the placement and removal of square coating jigs.

[0034] The above-described embodiments only express a certain implementation mode of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the patent scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A transfer device for photovoltaic silicon wafer coating jig, characterized in that: The invention comprises a supporting bottom frame (1), the bottom of the supporting bottom frame (1) is connected to a plurality of universal wheels (2), the inner side of the supporting bottom frame (1) is connected to a symmetrically arranged lifting mechanism (3), the top of the lifting mechanism (3) is connected to a transfer frame (4), the top of the transfer frame (4) is provided with horizontal rollers (5) at intervals, one end of the transfer frame (4) is connected to a fixed limit plate (6), the other end of the transfer frame (4) is connected to a lifting limit member (7), and the transfer frame (4) is symmetrically provided with vertical limit members (8) in the conveying direction.

2. The transfer device of the photovoltaic silicon wafer coating jig according to claim 1 is characterized in that: The lifting mechanism (3) comprises a first diagonal support rod (31), the middle part of the first diagonal support rod (31) is rotatably connected to the second diagonal support rod (32), the first diagonal support rod (31) and the second diagonal support rod (32) form an "X"-shaped structure, one side of the symmetrically arranged first diagonal support rod (31) and second diagonal support rod (32) are respectively connected to the second connecting rod (34) through a first connecting rod (33), both ends of the first connecting rod (33) and the second connecting rod (34) are connected to guide wheels (35), the guide wheels (35) are respectively slidably connected to the supporting bottom frame (1) and the transfer frame (4), the first connecting rod (33) and the second connecting rod (34) are also connected through a third connecting rod (36), the first connecting rod (33) at the bottom is hinged to a first hydraulic cylinder (37), the end of the first hydraulic cylinder (37) is hinged to the third connecting rod (36), and the first hydraulic cylinder (37) is connected to a pressing device (38) through a hydraulic pipeline.

3. The transfer device of the photovoltaic silicon wafer coating jig according to claim 2 is characterized in that: The pressing device (38) is arranged on one side of the supporting bottom frame (1), and comprises a second hydraulic cylinder (381); an outer arm of the second hydraulic cylinder (381) is connected to a base (382); a guide plate (383) is slidably connected inside the base (382); a top of the guide plate (383) is connected to a second connecting rod (384); an outer side of the second connecting rod (384) is connected to an L-shaped pedal rod (385); a limiting ring (386) is provided at the bottom of the guide plate (383); a first spring (387) is provided at the bottom of the limiting ring (386); the first spring (387) is provided at the top of the second hydraulic cylinder (381); a pressure relief pedal (388) is provided on the side of the second hydraulic cylinder (381); and the second hydraulic cylinder (381) is connected to the second hydraulic cylinder (381) via a hydraulic pipeline.

4. The transfer device of the photovoltaic silicon wafer coating jig according to claim 1, characterized in that: The top of the transfer frame (4) is spaced apart with positioning grooves (41), the top of the positioning grooves (41) is slidably connected to two symmetrically arranged vertical limit members (8), the vertical limit member (8) comprises a sliding seat (81), the top outer side of the sliding seat (81) is connected to a concave clamping block (82), the inner side of the concave clamping block (82) is rotatably connected to a vertical roller (83), the sliding seat (81) is provided with a threaded hole (84), and the threaded hole (84) is matched with a limit screw (85).

5. The transfer device of the photovoltaic silicon wafer coating jig according to claim 4, characterized in that: A receiving groove (411) is provided in the middle of the positioning slide groove (41), a second spring (412) is arranged in the receiving groove (411), two ends of the second spring (412) are connected to one end of a traction rope, and the other end of the traction rope is connected to the sliding seat (81).

6. The transfer device of the photovoltaic silicon wafer coating jig according to claim 1, characterized in that: A second slide groove (42) is symmetrically provided on one side of the top of the transfer frame (4), the second slide groove (42) is slidably connected to a lifting limit block (43), a lifting groove (44) is provided on the top of the lifting limit block (43), a third spring is provided in the lifting groove (44), the top of the third spring is connected to a limit block (45), a first magnetic block (46) is provided on one side of the limit block (45), a second magnetic block (47) is provided at a corresponding position of the lifting limit block (43), a side of the lifting limit block (43) is connected to a positioning block (48), and a positioning hole (49) is provided on the positioning block (48).

7. The transfer device of the photovoltaic silicon wafer coating jig according to claim 1, characterized in that: A damper (401) is arranged in a rectangular shape in the middle of the transfer frame (4) and cooperates with a shock-absorbing spring (402). The top of the damper (401) is connected to a lifting plate (403).

8. The transfer device of the photovoltaic silicon wafer coating jig according to claim 1, characterized in that: One side of the top of the supporting bottom frame (1) is connected to a hand-pushing railing (11), and a fixing plate (12) is connected to the hand-pushing railing (11).

9. The transfer device of the photovoltaic silicon wafer coating jig according to claim 1, characterized in that: The horizontal rollers (5) are evenly arranged on the top of the transfer frame (4) in a rectangular design, and weight-reducing grooves (51) are spaced apart on the transfer frame (4).

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