Device for reducing friction scratch of reworked piece

Abstract

The utility model discloses a device for reducing friction scratch of a reworked piece, which comprises a first conveyor belt, a second conveyor belt arranged on one side of the first conveyor belt, a support frame arranged above the second conveyor belt, a mounting plate connected with the support frame through an electric telescopic rod, a nozzle arranged below the mounting plate, and a connecting pipe connected with the nozzle through an air ejector pipe. According to the rework piece conveying device, the rework pieces are placed on the second conveying belt to be conveyed, and surface scratching caused by collision or friction in the conveying process can be effectively avoided. The design not only protects the surface quality of the reworked piece, but also improves the safety and stability of the transmission process. In addition, a nozzle and a dust hood are arranged above the second conveyor belt, and the devices can clean the reworked piece in real time.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic cell manufacturing technology, specifically to a device for reducing friction and scratches on reworked cells. Background Technology

[0002] In the photovoltaic industry, with the increasing demand for high-efficiency solar cells, especially the development of advanced technologies such as heterojunction (HJT) cells, improving production efficiency and product quality has become a key focus. However, in the automated CVD (chemical vapor deposition) production process, the handling of reworked cells is a common and challenging problem. Reworked cells typically refer to cells that have defects or quality issues during production and require reprocessing or repair. They are highly susceptible to friction and scratches during transport and handling, which not only affects the final product quality but also increases production costs.

[0003] Traditional methods for handling reworked solar cells typically involve a robotic arm collecting the cells into a plastic box, followed by placement into a basket for further processing using a cell-turning machine or manually. This method has several major problems. First, because the solar cells are very thin, they tend to adhere very tightly, making them prone to damage during removal. Second, during the robotic arm's release of the cells into the collection box, friction between the cells causes surface scratches, which are often difficult to completely remove, affecting the cells' electrical performance.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] In view of the problems in the related technologies, this utility model proposes a device to reduce friction and scratches on rework sheets, so as to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] Therefore, the specific technical solution adopted by this utility model is as follows:

[0007] A device for reducing frictional scratches on rework sheets includes a first conveyor belt, a second conveyor belt on one side of the first conveyor belt, a support frame above the second conveyor belt, a mounting plate connected to the support frame via an electric telescopic rod, a nozzle below the mounting plate, the nozzle being connected to a connecting pipe via an air jet pipe, the connecting pipe being connected to a filter, and the filter being connected to an air compressor via a conveying pipe on one side.

[0008] Furthermore, in order to transfer the rework pieces on the first conveyor belt to the second conveyor belt, a fixed plate is provided between the first and second conveyor belts. A hydraulic telescopic rod is provided above the fixed plate. The output end of the hydraulic telescopic rod is connected to the mounting base. A rotating rod is connected to the mounting base through a bearing. The rotating rod is connected to a rotating plate. A suction cup is connected to the bottom of the rotating plate through a connecting frame.

[0009] Furthermore, a driven gear is fixedly connected to the rotating rod, one side of which meshes with the driving gear, and the driving gear is connected to the output shaft of the drive motor.

[0010] Furthermore, the drive motor is connected to the mounting base via a fixed bracket.

[0011] Furthermore, the filter and air compressor are located on one side of the second conveyor belt.

[0012] Furthermore, the support frame has openings on both sides, and a dust collection hood is installed inside the opening. One side of the dust collection hood is connected to the collection box via a dust collection pipe, and the other side of the collection box is connected to the fan via an exhaust pipe.

[0013] Furthermore, a filter screen is connected to the connection between the exhaust pipe and the collection box, and the collection box is located on one side of the second conveyor belt.

[0014] The beneficial effects of this utility model are as follows:

[0015] (1) By placing the rework sheets on the second conveyor belt, surface scratches caused by collisions or friction during transport can be effectively avoided. This design not only protects the surface quality of the rework sheets but also improves the safety and stability of the transport process. Furthermore, nozzles and a dust collection hood are installed above the second conveyor belt, enabling real-time cleaning of the rework sheets. The nozzles use high-pressure gas to blow away tiny particles and dust from the surface of the rework sheets, while the dust collection hood promptly collects these blown-up impurities, preventing them from redepositing on the surface. This dual cleaning mechanism significantly improves the cleanliness of the rework sheets, reduces the difficulty and time of subsequent processing, thereby improving overall production efficiency and product quality. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a front view of a device for reducing frictional scratches on rework sheets according to an embodiment of the present utility model;

[0018] Figure 2 This is a left view of a device for reducing frictional scratches on rework sheets according to an embodiment of the present utility model;

[0019] Figure 3 This is a right view of a device for reducing frictional scratches on rework sheets according to an embodiment of the present utility model;

[0020] Figure 4 This is a top view of a device for reducing frictional scratches on rework sheets according to an embodiment of the present invention.

[0021] In the picture:

[0022] 1. First conveyor belt; 2. Second conveyor belt; 3. Support frame; 4. Electric telescopic rod; 5. Mounting plate; 6. Nozzle; 7. Connecting pipe; 8. Filter; 9. Conveying pipe; 10. Air compressor; 11. Fixing plate; 12. Hydraulic telescopic rod; 13. Mounting base; 14. Rotating rod; 15. Turning plate; 16. Connecting frame; 17. Suction cup; 18. Driven gear; 19. Drive gear; 20. Drive motor; 21. Fixing base; 22. Opening; 23. Dust hood; 24. Dust suction pipe; 25. Collection box; 26. Exhaust pipe; 27. Fan. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] According to an embodiment of the present invention, a device for reducing frictional scratches on rework sheets is provided.

[0025] Example 1

[0026] like Figures 1-4As shown, the device for reducing friction and scratches on rework cells according to an embodiment of the present invention includes a first conveyor belt 1 for conveying solar cells undergoing PL (photoluminescence) testing. PL testing is a technology used to evaluate the quality of solar cells. By detecting the luminescence characteristics of the solar cells under a specific light source, its performance and defects can be determined. The first conveyor belt 1 is usually made of wear-resistant and high-temperature resistant materials to ensure good performance during long-term, high-intensity use. A second conveyor belt 2 is provided on one side of the first conveyor belt 1 for conveying rework cells. It can clean and protect the solar cells during the transmission process to avoid surface scratches caused by friction or collision. A support frame 3 is provided above the second conveyor belt 2 for fixing and supporting other cleaning and protection devices, such as nozzles 6 and dust hoods 23. A mounting plate 5 is connected to the support frame 3 via an electric telescopic rod 4. The electric telescopic rod 4 is used to adjust the height of the mounting plate 5, thereby adjusting the distance between the nozzles 6 and the solar cells to ensure that the nozzles 6 can accurately blow on the surface of the solar cells. The mounting plate 5 is used to fix the nozzles 6 to ensure that the nozzles 6 remain stable during operation. Below the mounting plate 5 is a nozzle 6, which sprays compressed air or other gas at high speed onto the surface of the solar cells to remove fine particles or dust. The nozzle 6 is connected to a connecting pipe 7 via a jet pipe. The connecting pipe 7 is equipped with a regulating valve to control the gas flow rate and pressure, allowing adjustment of the purging intensity as needed. The connecting pipe 7 is also connected to a filter 8, which filters impurities from the gas to ensure cleanliness and prevent impurities from entering the nozzle 6 and the solar cell surface. One side of the filter 8 is connected to an air compressor 10 via a delivery pipe 9. The air compressor 10 provides compressed air or other gas to power the nozzle 6. The air compressor 10 consists of an electric motor, a compressor, and an air tank. The system generates stable high-pressure gas. The filter 8 and air compressor 10 are located on one side of the second conveyor belt 2. The support frame 3 has openings 22 on both sides, each containing a dust collection hood 23. The dust collection hood 23 collects blown-up dust and particles, preventing them from re-depositing on the battery cell surface. One side of the dust collection hood 23 is connected to a collection box 25 via a suction pipe 24, which transports the collected dust and particles from the dust collection hood 23 to the collection box 25. The collection box 25 stores the collected dust and particles, preventing them from re-entering the working environment. One side of the collection box 25 is connected to a fan 27 via an exhaust pipe 26, which generates negative pressure to ensure the dust collection hood 23 effectively collects dust and particles. A filter screen is connected at the connection between the exhaust pipe 26 and the collection box 25 to prevent dust from entering the fan 27. The collection box 25 is located on one side of the second conveyor belt 2.

[0027] like Figures 1-4As shown, a fixing plate 11 is provided between the first conveyor belt 1 and the second conveyor belt 2, serving to support and fix the hydraulic telescopic rod 12. The fixing plate 11 has mounting holes to allow for secure fixing to the ground using screws or other fasteners, ensuring the stability of the entire device. The hydraulic telescopic rod 12 is located above the fixing plate 11, achieving telescopic functionality through a hydraulic system to drive the suction cup 17 to move up and down. The output end of the hydraulic telescopic rod 12 is connected to a mounting base 13, which is used to install and fix other components, such as bearings and rotating rods 14. The mounting base 13 is made of high-strength material to ensure it can withstand significant weight and force. The rotating rod 14 is connected to the mounting base 13 via bearings and can rotate around the bearing axis. An encoder is located at the top of the rotating rod 14. An encoder is a sensor that measures and provides feedback on the rotation angle and position of the rotating rod 14. Encoders typically consist of high-precision photoelectric or magnetic elements, capable of monitoring the rotation state of the rotating rod 14 in real time and transmitting the data to the control system. Through encoder feedback, the control system can precisely control the rotation angle and speed of the rotating rod 14, thereby achieving precise control of the entire device. The rotating rod 14 is connected to the rotating plate 15. A suction cup 17 is connected to the bottom of the rotating plate 15 through a connecting frame 16. The connecting frame 16 connects the rotating plate 15 and the suction cup 17, ensuring that the suction cup 17 can rotate and move together with the rotating plate 15. A driven gear 18 is fixedly connected to the rotating rod 14 to receive the power transmitted by the driving gear 19. One side of the driven gear 18 meshes with the driving gear 19. The driving gear 19 is connected to the output shaft of the drive motor 20 to provide rotational power. The drive motor 20 is connected to the mounting base 13 through a fixed base 21. The fixed base 21 is used to fix the drive motor 20 to ensure the stability and safety of the drive motor 20.

[0028] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0029] In summary, with the help of the above-mentioned technical solution of this utility model, in actual use, after the battery cells pass through the PL detection on the first conveyor belt 1, the rework cells can be picked up by the suction cup 17. During the picking process, the suction cup 17 can be moved closer to the rework cells by activating the hydraulic telescopic rod 12. After the picking is completed, the output end of the hydraulic telescopic rod 12 can be moved upward, and then the drive motor 20 can be activated. The rotation of the drive motor 20 can drive the drive gear 19 to rotate. The rotation of the drive gear 19 drives the driven gear 18 and the rotating rod 14 to rotate. The rotating rod 14 rotates... The rotating plate 15 and suction cup 17 are rotated, which moves the rework piece above the second conveyor belt 2. Then, the hydraulic telescopic rod 12 is activated to move the suction cup 17 down and place it on the second conveyor belt 2. When the rework piece moves to the bottom of the support frame 3, the dust on the rework piece can be blown away by the nozzle 6. At the same time, the dust suction hood 23 can suck up the blown dust and impurities to prevent them from settling on the surface of the rework piece again. When the rework piece reaches one end of the second conveyor belt 2, the workers can place the rework piece directly on the flower basket.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for reducing frictional scratches on rework sheets, characterized in that, It includes a first conveyor belt (1), a second conveyor belt (2) on one side of the first conveyor belt (1), a support frame (3) above the second conveyor belt (2), an mounting plate (5) connected by an electric telescopic rod (4) on the support frame (3), a nozzle (6) below the mounting plate (5), the nozzle (6) being connected to a connecting pipe (7) via an air jet pipe, the connecting pipe (7) being connected to a filter (8), and the filter (8) being connected to an air compressor (10) on one side via a conveying pipe (9).

2. The device for reducing frictional scratches on rework sheets according to claim 1, characterized in that, A fixed plate (11) is provided between the first conveyor belt (1) and the second conveyor belt (2). A hydraulic telescopic rod (12) is provided above the fixed plate (11). The output end of the hydraulic telescopic rod (12) is connected to the mounting base (13). A rotating rod (14) is connected to the mounting base (13) through a bearing. The rotating rod (14) is connected to the rotating plate (15). A suction cup (17) is connected to the bottom of the rotating plate (15) through a connecting frame (16).

3. The device for reducing frictional scratches on rework sheets according to claim 2, characterized in that, A driven gear (18) is fixedly connected to the rotating rod (14). One side of the driven gear (18) meshes with the driving gear (19). The driving gear (19) is connected to the output shaft of the drive motor (20).

4. The device for reducing frictional scratches on rework sheets according to claim 3, characterized in that, The drive motor (20) is connected to the mounting base (13) via the fixed base (21).

5. The device for reducing frictional scratches on rework sheets according to claim 1, characterized in that, The filter (8) and the air compressor (10) are located on one side of the second conveyor belt (2).

6. The device for reducing frictional scratches on rework sheets according to claim 1, characterized in that, The support frame (3) has openings (22) on both sides. Inside the openings (22) is a dust hood (23). One side of the dust hood (23) is connected to the collection box (25) through a dust suction pipe (24). One side of the collection box (25) is connected to the fan (27) through an exhaust pipe (26).

7. The device for reducing frictional scratches on rework sheets according to claim 6, characterized in that, A filter screen is connected at the connection between the exhaust pipe (26) and the collection box (25), and the collection box (25) is located on one side of the second conveyor belt (2).

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