Photovoltaic cell testing and sorting apparatus

Abstract

The utility model relates to a kind of photovoltaic cell piece test sorting equipment, including sequentially arranged feeding section, detection section, upper paper section and sorting section, the feeding conveyor belt is horizontally arranged between the feeding section, detection section and upper paper section, the lower conveyor belt is horizontally arranged between upper paper section and sorting section, the detection section includes sequentially arranged first AOI detection machine, first PL detection machine, second AOI detection machine, IV detection machine and second PL detection machine, overturning mechanism is arranged between the first PL detection machine and second AOI detection machine, IV detection rotating mechanism is arranged between IV detection machine and second AOI detection machine and second PL detection machine.The utility model is provided with first AOI detection machine, first PL detection machine, second AOI detection machine, IV detection machine, second PL detection machine and overturning mechanism, can realize the all-round multi-project detection of photovoltaic cell piece, effectively improve detection precision, avoid the mistake and miss phenomenon when sorting.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic cell production equipment technology, specifically to a photovoltaic cell testing and sorting device. Background Technology

[0002] A photovoltaic cell testing and sorting machine is a device specifically designed for measuring and sorting the electrical properties of monocrystalline and polycrystalline silicon solar cells. It measures the relevant electrical parameters of the cells by simulating a solar spectrum light source and classifies the cells based on the measurement results.

[0003] For example, the "Sorting Device for Photovoltaic Cells" published by CN114798490B includes a housing, a UV lamp, a first rotating shaft, and a first movable plate. The UV lamp for irradiating the photovoltaic cells is connected to the top of the housing. The first rotating shaft is rotatably connected to the upper right side of the housing, and the first movable plate is connected to the first rotating shaft. By pushing the photovoltaic cells onto the first movable plate and turning on the UV lamp, the device irradiates the photovoltaic cells. The photovoltaic cells are then detected by monitoring the lamp's status.

[0004] However, the sorting equipment mentioned above only has a limited range of testing items, which makes it impossible to accurately test photovoltaic cells. Furthermore, the testing efficiency is low, and manual operation is required, which can easily lead to damage to photovoltaic cells and reduce yield. Utility Model Content

[0005] The purpose of this invention is to provide a photovoltaic cell testing and sorting device to solve the problems of low efficiency and low accuracy of existing testing equipment.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A photovoltaic cell testing and sorting device includes a feeding section, a detection section, an upper paper separator section, and a sorting section arranged sequentially. A feeding conveyor belt is horizontally arranged between the feeding section, the detection section, and the upper paper separator section. A discharging conveyor belt is horizontally arranged between the upper paper separator section and the sorting section. The detection section includes a first AOI detector, a first PL detector, a second AOI detector, an IV detector, and a second PL detector arranged sequentially. A flipping mechanism is arranged between the first PL detector and the second AOI detector. An IV detection rotation mechanism is arranged between the IV detector, the second AOI detector, and the second PL detector. Several receiving mechanisms are arranged inside the sorting section, and a material box transport mechanism is arranged at the bottom of the receiving mechanism.

[0008] Furthermore, the input end of the feeding section is provided with a basket lifting mechanism, the movable end of which is fixedly connected to a feeding basket. A first mounting plate is horizontally arranged in the middle of the inner side of the feeding section. The feeding conveyor belt is arranged parallel to the upper part of the first mounting plate. The middle part of the feeding conveyor belt is hollowed out. A lifting stacking rack is arranged on the side of the feeding conveyor belt facing the basket lifting mechanism. A reverse loading microcrack detection mechanism is arranged on the side of the lifting stacking rack away from the basket lifting mechanism. A deflection conveyor belt is rotatably connected to one end of the feeding conveyor belt at the output end of the feeding section. A discharge rotation mechanism is arranged at the bottom of the deflection conveyor belt.

[0009] Furthermore, the feeding rotation mechanism includes an upper mounting frame, the fixed end shaft of the deflecting conveyor belt is hinged to the upper mounting frame, the movable end shaft of the deflecting conveyor belt is hinged to the piston rod of the automatic telescopic mechanism, a lower mounting frame is fixedly connected to the bottom of the upper mounting frame, the bottom end of the lower mounting frame extends to the bottom of the first mounting plate, the bottom end of the automatic telescopic mechanism is rotatably connected to the lower mounting frame, a first material collection trough is fixedly connected to the upper side of one end of the first mounting plate at the output end of the feeding section, and a first material receiving box is detachably provided on the upper part of the first material collection trough.

[0010] Furthermore, a second mounting plate is horizontally arranged in the middle of the inner side of the detection section, the first AOI inspection machine is fixedly installed inside the detection section on the side facing the feeding section, and the first PL inspection machine is fixedly installed on the side of the first AOI inspection machine away from the feeding section.

[0011] Furthermore, the flipping mechanism includes a pair of flipping fixing frames, which are symmetrically arranged on both sides of the connection between adjacent feeding conveyor belts. A flipping shaft is rotatably connected between the top ends of the flipping fixing frames. Several flipping wheels are fixedly arranged on the outside of the flipping shaft. The flipping wheels are located in the hollow part inside the feeding conveyor belt. A flipping motor is fixedly connected to the top of the outer wall of the flipping fixing frame. The output end of the flipping motor is fixedly connected to the flipping shaft. Several flipping grooves are evenly opened on the side wall of the flipping wheel around the flipping shaft.

[0012] Furthermore, the IV detection rotating mechanism includes an IV detection fixing frame, which is fixedly installed on the top edge of the first mounting plate away from the IV detection machine. The top of the IV detection fixing frame is fixedly connected to a rotating mechanism via a top rod. A rotating feeding frame is fixedly installed at the bottom of the output end of the rotating mechanism. The rotating feeding frame is arranged in a "+" shape. The bottom of the rotating feeding frame is rotatably connected to the first mounting plate via a rotating table. A rotating feeding robotic arm is installed on the top of the IV detection fixing frame facing the second AOI detection machine, and a rotating unloading robotic arm is installed on the top of the IV detection fixing frame facing the second PL detection machine. A feeding suction cup is fixedly connected to the bottom of the movable end of both the rotating feeding robotic arm and the rotating unloading robotic arm facing the IV detection machine.

[0013] Furthermore, the end of the feeding conveyor belt extends into the interior of the upper paper separator section, and the unloading conveyor belt is arranged parallel to the feeding conveyor belt. A transport and translation mechanism is provided at the top of the side of the upper paper separator section facing the detection section. A transport suction cup is fixedly connected to the bottom of the moving platform of the transport and translation mechanism. The beginning of the unloading conveyor belt is located below the transport and translation mechanism. A second collection trough is fixedly provided at the bottom of the end of the feeding conveyor belt, and a second receiving box is detachably provided on the upper part of the second collection trough.

[0014] Furthermore, an upper paper-separating translation mechanism is provided at the top of the side of the upper paper-separating section facing the sorting section. An upper paper-separating suction cup is fixedly connected to the bottom of the moving platform of the upper paper-separating translation mechanism. Several paper-separating trays are fixedly provided at the bottom of the upper paper-separating translation mechanism facing the feeding conveyor belt. The bottom of the paper-separating trays is hollowed out. A paper-separating lifting mechanism is connected to the bottom of the paper-separating trays. The movable end of the paper-separating lifting mechanism extends into the interior of the paper-separating trays. A paper-separating detection mechanism is fixed at the top of the side of the upper paper-separating translation mechanism away from the conveying translation mechanism. The paper-separating detection mechanism is located directly above the unloading conveyor belt.

[0015] Furthermore, the receiving mechanism includes a receiving fixing frame, which is fixedly connected to the inner top of the sorting section. Receiving robotic arms are provided on both sides of the receiving fixing frame. A receiving rack is fixedly connected to the movable end side wall of the receiving robotic arm. A receiving suction cup is fixedly connected to the bottom of the receiving rack. Several feeding racks are evenly arranged on the side of the unloading conveyor belt facing the loading conveyor belt. Several limiting rods are fixedly connected to the top of the feeding rack. Several feeding grooves are formed between the limiting rods and the feeding racks. Several feeding boxes are detachably provided inside the feeding grooves.

[0016] Furthermore, several slide rails are arranged parallel to each other at the bottom of the feeding conveyor belt, and a material box transport mechanism is slidably connected to the top of the slide rails. The material box transport mechanism includes a base plate, the bottom of which is slidably connected to the slide rails. An auxiliary feeding translation mechanism is arranged horizontally at the top of the base plate. The translation direction of the auxiliary feeding translation mechanism is perpendicular to the slide rails. An auxiliary feeding lifting mechanism is arranged vertically at the top of the moving platform of the auxiliary feeding translation mechanism. An auxiliary feeding conveying mechanism is arranged at the top of the auxiliary feeding lifting mechanism. The auxiliary feeding conveying mechanism is arranged parallel to the slide rails. An auxiliary feeding trough is formed between the end of the feeding rack away from the feeding conveyor belt and the adjacent limiting rod.

[0017] The beneficial effects of this utility model are as follows:

[0018] 1. The photovoltaic cell testing and sorting equipment of this utility model, by setting up a first AOI inspection machine, a first PL inspection machine, a second AOI inspection machine, an IV inspection machine, a second PL inspection machine and a flipping mechanism, can realize all-round multi-item inspection of photovoltaic cells, effectively improve the inspection accuracy and avoid errors and omissions during sorting.

[0019] 2. The photovoltaic cell testing and sorting equipment of this utility model, by setting up a feeding section and a sorting section, can realize fully automatic loading and unloading of photovoltaic cells, improve testing efficiency, and avoid damage to photovoltaic cells caused by manual operation, thus effectively improving yield.

[0020] 3. The photovoltaic cell testing and sorting equipment of this utility model, by setting up a material box transport mechanism, can assist in transporting the material boxes after sorting, thereby improving the sorting and unloading efficiency of photovoltaic cells and further improving the testing efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a photovoltaic cell testing and sorting device according to the present invention;

[0022] Figure 2 This is a schematic diagram of the internal structure of the feeding section of a photovoltaic cell testing and sorting device according to the present invention;

[0023] Figure 3 This is a side view of the internal structure of the feeding section of a photovoltaic cell testing and sorting device according to this utility model;

[0024] Figure 4 This is a schematic diagram of the internal structure of the detection section of a photovoltaic cell testing and sorting device according to the present invention;

[0025] Figure 5 This is a schematic diagram of the flipping mechanism of a photovoltaic cell testing and sorting device according to the present invention;

[0026] Figure 6 This is a schematic diagram of the IV detection rotating mechanism of a photovoltaic cell testing and sorting device according to this utility model;

[0027] Figure 7 This is a schematic diagram of the internal structure of the upper paper separator section of a photovoltaic cell testing and sorting device according to the present invention;

[0028] Figure 8 This is a schematic diagram of the paper-separating detection mechanism of a photovoltaic cell testing and sorting device according to this utility model;

[0029] Figure 9 This is a schematic diagram of the internal structure of the sorting section of a photovoltaic cell testing and sorting device according to this utility model;

[0030] Figure 10 This is a schematic diagram of the receiving mechanism of a photovoltaic cell testing and sorting device according to the present invention;

[0031] Figure 11 This is a schematic diagram of the auxiliary feeding trough structure of a photovoltaic cell testing and sorting device according to the present invention;

[0032] Figure 12 This is a schematic diagram of the material box handling mechanism of a photovoltaic cell testing and sorting equipment according to this utility model.

[0033] Reference numerals: 1. Feeding section; 101. First mounting plate; 102. Basket lifting mechanism; 103. Feeding basket; 104. Feeding conveyor belt; 105. Inverted microcrack detection mechanism; 106. Lifting stacking rack; 107. Deflecting conveyor belt; 108. Unloading rotating mechanism; 1081. Upper mounting frame; 1082. Lower mounting frame; 1083. Automatic telescopic mechanism; 109. First receiving box; 2. Detection section; 201. 2. Mounting plate; 202. First AOI inspection machine; 203. First PL inspection machine; 204. Tilting mechanism; 2041. Tilting fixing frame; 2042. Tilting motor; 2043. Tilting wheel; 2044. Tilting groove; 205. Second AOI inspection machine; 206. IV inspection machine; 207. IV inspection rotating mechanism; 2071. IV inspection fixing frame; 2072. Rotating loading robot arm; 2073. Rotating unloading robot arm. 2074. Robotic arm; 2075. Rotating mechanism; 2076. Rotating loading rack; 2077. Rotating table; 208. Second PL inspection machine; 3. Upper paper separator section; 301. Transporting and translating mechanism; 302. Transporting suction cup; 303. Unloading conveyor belt; 304. Paper separator tray; 305. Paper separator lifting mechanism; 306. Upper paper separator translating mechanism; 307. Upper paper separator suction cup; 308. Paper separator inspection mechanism; 4. Sorting section; 401. Receiving machine Structure; 4011, receiving fixing frame; 4012, receiving robotic arm; 4013, receiving rack; 4014, receiving suction cup; 4015, unloading rack; 4016, limit rod; 4017, unloading box; 4018, auxiliary unloading chute; 402, slide rail; 403, material box handling mechanism; 4031, base plate; 4032, auxiliary unloading translation mechanism; 4033, auxiliary unloading lifting mechanism; 4034, auxiliary unloading conveying mechanism. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0035] refer to Figure 1The photovoltaic cell testing and sorting equipment of this embodiment includes a feeding section 1, a detection section 2, an upper paper separator section 3, and a sorting section 4 arranged sequentially. A feeding conveyor belt 104 is horizontally arranged between the feeding section 1, the detection section 2, and the upper paper separator section 3. A discharging conveyor belt 303 is horizontally arranged between the upper paper separator section 3 and the sorting section 4. The detection section 2 is used to perform multi-item all-round detection on the photovoltaic cells. The detection section 2 includes a first AOI inspection machine 202, a first PL inspection machine 203, a second AOI inspection machine 205, an IV inspection machine 206, and a second PL inspection machine 208 arranged sequentially. The first AOI inspection machine 202 is used for visual inspection of one side of the photovoltaic cells. The first PL inspection machine 203 is used for single-side photoluminescence detection of the photovoltaic cells. The second AOI inspection machine 205 is used for double-side visual inspection of the photovoltaic cells. The second PL inspection machine 208 is used for double-side photoluminescence detection of the photovoltaic cells. IV testing machine 206 is used to test the photoelectric conversion efficiency and output power performance of photovoltaic cells. A flipping mechanism 204 is provided between the first PL testing machine 203 and the second AOI testing machine 205 for automatically flipping the photovoltaic cells. An IV testing rotation mechanism 207 is provided between the IV testing machine 206, the second AOI testing machine 205, and the second PL testing machine 208 for rotating and transporting the photovoltaic cells during IV testing. The upper paper-separating section 3 is used to transport the photovoltaic cells to the unloading conveyor belt 303 and cover the surface of the photovoltaic cells with paper to prevent damage to the photovoltaic cells due to collisions during stacking. The sorting section 4 is equipped with several receiving mechanisms 401 for classifying and stacking the tested photovoltaic cells. A material box transport mechanism 403 is provided at the bottom of the receiving mechanism 401 for assisting in the transport of full material boxes and filling empty material boxes in empty positions to improve the receiving efficiency.

[0036] refer to Figure 2The input end of the feeding section 1 is provided with a basket lifting mechanism 102. The movable end of the basket lifting mechanism 102 is fixedly connected to a feeding basket 103. A first mounting plate 101 is horizontally arranged in the middle of the inner side of the feeding section 1. The feeding conveyor belt 104 is arranged parallel to the upper part of the first mounting plate 101. The middle part of the feeding conveyor belt 104 is hollow. A lifting stacking rack 106 is arranged on the side of the feeding conveyor belt 104 facing the basket lifting mechanism 102. An inverted hidden crack detection mechanism 105 is arranged on the side of the lifting stacking rack 106 away from the basket lifting mechanism 102. A deflection conveyor belt 107 is rotatably connected to the end of the feeding conveyor belt 104 located at the output end of the feeding section 1. A discharge rotation mechanism 108 is arranged at the bottom of the deflection conveyor belt 107. During loading, the material is placed on the surface of the loading basket 103. The loading conveyor belt 104 at the top of the loading basket 103 is raised to be flush with the loading conveyor belt 104 at the top of the mounting plate by the basket lifting mechanism 102. The loading conveyor belt 104 is started so that the photovoltaic cells can be loaded. The lifting stacking rack 106 is used to stack the photovoltaic cells when the loading conveyor belt 104 at the rear stops running. When the photovoltaic cells flow between the loading conveyor belts 104, the cracks on the surface of the photovoltaic cells can be detected by the flip-chip microcrack detection mechanism 105.

[0037] refer to Figure 3 The feeding rotation mechanism 108 includes an upper mounting frame 1081. The fixed end shaft of the deflection conveyor belt 107 is hinged to the upper mounting frame 1081. The movable end shaft of the deflection conveyor belt 107 is hinged to the piston rod of the automatic telescopic mechanism 1083. The bottom of the upper mounting frame 1081 is fixedly connected to a lower mounting frame 1082. The bottom end of the lower mounting frame 1082 extends to the bottom of the first mounting plate 101. The bottom end of the automatic telescopic mechanism 1083 is rotatably connected to the lower mounting frame 1082. The first mounting plate 101 is fixedly connected to a first material collection trough on the upper side of one end of the feeding section 1 output end. A first material receiving box 109 is detachably provided on the upper part of the first material collection trough. When a cracked photovoltaic cell is detected moving to the deflection conveyor belt 107, the automatic telescopic mechanism 1083 retracts, causing the deflection conveyor belt 107 at the top of the automatic telescopic mechanism 1083 to deflect downwards, so that the damaged photovoltaic cell flows into the interior of the first receiving box 109 along with the deflection conveyor belt 107, making it easier to process it centrally.

[0038] refer to Figure 4A second mounting plate 201 is horizontally arranged in the middle of the inner side of the inspection section 2. The first AOI inspection machine 202 is fixedly installed inside the inspection section 2 on the side facing the feeding section 1, and the first PL inspection machine 203 is fixedly installed on the side of the first AOI inspection machine 202 away from the feeding section 1. The photovoltaic cells enter the interior of the inspection section 2 with the flow of the feeding conveyor belt 104. When passing the bottom of the first AOI inspection machine 202, a single side of the cells is visually inspected, and then photoluminescence is detected by the first PL inspection machine 203.

[0039] refer to Figure 5 The flipping mechanism 204 includes a pair of flipping fixing frames 2041, which are symmetrically arranged on both sides of the connection between adjacent feeding conveyor belts 104. A flipping shaft is rotatably connected between the top ends of the flipping fixing frames 2041. Several flipping wheels 2043 are fixedly arranged on the outside of the flipping shaft. The flipping wheels 2043 are located in the hollow part inside the feeding conveyor belt 104. A flipping motor 2042 is fixedly connected to the top of the outer wall of the flipping fixing frame 2041. The output end of the flipping motor 2042 is fixedly connected to the flipping shaft. Several flipping grooves 2044 are evenly opened on the side wall of the flipping wheel 2043 around the flipping shaft. After passing through the first PL inspection machine 203, the photovoltaic cells flow into the flipping groove on the side wall of the flipping wheel 2043 along the feeding conveyor belt 104. At this time, the flipping motor 2042 drives the flipping shaft to start rotating, causing the flipping wheel 2043 to rotate accordingly. After the flipping wheel 2043 rotates 180°, the photovoltaic cells inside its flipping groove come into contact with the feeding conveyor belt 104 on the other side of the flipping wheel 2043, so that the photovoltaic cells flow backward along the feeding conveyor belt 104 after being flipped, realizing the automatic flipping of the photovoltaic cells.

[0040] refer to Figure 6The IV detection rotating mechanism 207 includes an IV detection fixing frame 2071, which is fixedly mounted on the top edge of the first mounting plate 101 away from the IV detection machine 206. The top of the IV detection fixing frame 2071 is fixedly connected to a rotating mechanism 2074 via a top rod. A rotating feeding frame 2075 is fixedly mounted at the bottom of the output end of the rotating mechanism 2074. The rotating feeding frame 2075 is arranged in a "+" shape. The bottom of the rotating feeding frame 2075 is rotatably connected to the first mounting plate 101 via a rotating table 2076. A rotating feeding robot arm 2072 is mounted on the top of the IV detection fixing frame 2071 facing the second AOI detection machine 205. A rotating unloading robot arm 2073 is mounted on the top of the IV detection fixing frame 2071 facing the second PL detection machine 208. A feeding suction cup is fixedly connected to the bottom of the movable end of both the rotating feeding robot arm 2072 and the rotating unloading robot arm 2073 facing the IV detection machine 206. After being flipped, the photovoltaic cells flow through the second AOI inspection machine 205 for double-sided visual inspection. Then, they move to the other side of the second AOI inspection machine 205 along the feeding conveyor belt 104. At this point, the photovoltaic cells are attracted by the feeding suction cup at the bottom of the rotating feeding robotic arm 2072. As the moving end of the rotating feeding robotic arm 2072 moves away from the second AOI inspection machine 205, it drives the feeding suction cup and the photovoltaic cells to move together until the photovoltaic cells move to the rotating feeding rack 2075 and the feeding conveyor belt. Above one end of the conveyor belt 104, the feeding suction cup lowers the photovoltaic cell. The rotating mechanism 2074 drives the rotating feeding rack 2075 at the bottom to rotate 90°, so that the photovoltaic cell rotates and enters the IV testing machine 206 to test the photoelectric conversion efficiency and output power performance of the photovoltaic cell. After the test is completed, the rotating feeding rack 2075 rotates 90° again, and the feeding suction cup at the bottom of the rotating unloading robot arm 2073 transports the photovoltaic cell to the surface of the feeding conveyor belt 104 on the other side.

[0041] refer to Figure 7 The end of the feeding conveyor belt 104 extends into the interior of the upper paper-separating section 3. The unloading conveyor belt 303 is arranged parallel to the feeding conveyor belt 104. A transport and translation mechanism 301 is provided at the top of the side of the upper paper-separating section 3 facing the detection section 2. A transport suction cup 302 is fixedly connected to the bottom of the moving platform of the transport and translation mechanism 301. The beginning of the unloading conveyor belt 303 is located below the transport and translation mechanism 301. A second collection trough is fixedly provided at the bottom of the end of the feeding conveyor belt 104. A second receiving box is detachably provided on the upper part of the second collection trough. After the photovoltaic cells have been detected, they flow into the interior of the upper paper-separating section 3. At this time, the transport suction cup 302 at the bottom of the transport and translation mechanism 301 adsorbs the photovoltaic cells on the surface of the feeding conveyor belt 104 and then transports them to the surface of the unloading conveyor belt 303 on the other side, so that the photovoltaic cells flow backward with the unloading conveyor belt 303.

[0042] An upper paper-separating translation mechanism 306 is provided on the top of the side of the upper paper-separating section 3 facing the sorting section 4. An upper paper-separating suction cup 307 is fixedly connected to the bottom of the moving platform of the upper paper-separating translation mechanism 306. Several paper-separating trays 304 are fixedly provided on the bottom of the upper paper-separating translation mechanism 306 facing the feeding conveyor belt 104. The bottom of the paper-separating trays 304 is hollow. A paper-separating lifting mechanism 305 is connected to the bottom of the paper-separating trays 304. The movable end of the paper-separating lifting mechanism 305 extends into the interior of the paper-separating trays 304. A paper-separating detection mechanism 308 is fixed on the upper part of the side of the upper paper-separating translation mechanism 306 away from the conveying translation mechanism 301. The paper-separating detection mechanism 308 is located directly above the unloading conveyor belt 303. When the photovoltaic cells flow through the upper separator paper translation mechanism 306, the separator paper suction cup 307 at the bottom of the upper separator paper translation mechanism 306 adsorbs the separator paper inside the separator paper tray 304, and then moves it horizontally to place it on the surface of the photovoltaic cells to isolate the photovoltaic cells. The separator paper lifting mechanism 305 can lift the separator paper inside the separator paper tray to prevent the separator paper inside the separator paper tray from being too low, which would prevent the separator paper suction cup 307 from adsorbing the separator paper.

[0043] refer to Figure 9-10 The receiving mechanism 401 includes a receiving fixing frame 4011, which is fixedly connected to the top inner side of the sorting section 4. Receiving mechanical arms 4012 are provided on both sides of the receiving fixing frame 4011. A receiving rack 4013 is fixedly connected to the side wall of the movable end of the receiving mechanical arm 4012. A receiving suction cup 4014 is fixedly connected to the bottom of the receiving rack 4013. A number of feeding racks 4015 are evenly arranged on the side of the unloading conveyor belt 303 facing the loading conveyor belt 104. A number of limiting rods 4016 are fixedly connected to the top of the feeding rack 4015. A number of feeding grooves are formed between the limiting rods 4016 and the feeding rack 4015. A number of feeding boxes 4017 are detachably provided inside the feeding groove. After passing through the upper separator paper, the photovoltaic cells flow into the sorting section 4 along the unloading conveyor belt 303. At this time, the photovoltaic cells are attracted by the receiving suction cup 4014 at the bottom of the receiving rack 4013. Then, the receiving robotic arm 4012 drives the receiving rack 4013 to move towards the discharge trough until the photovoltaic cells move to the top of the corresponding discharge box 4017. The photovoltaic cells are then placed into the corresponding receiving box 4017 according to the test results.

[0044] refer to Figure 11-12The bottom of the feeding conveyor belt 303 is provided with several parallel slide rails 402. The top of the slide rails 402 is slidably connected to the material box transport mechanism 403. The material box transport mechanism 403 includes a base plate 4031. The bottom of the base plate 4031 is slidably connected to the slide rails 402. The top of the base plate 4031 is provided with an auxiliary feeding translation mechanism 4032. The translation direction of the auxiliary feeding translation mechanism 4032 is perpendicular to the slide rails 402. The top of the moving platform of the auxiliary feeding translation mechanism 4032 is provided with an auxiliary feeding lifting mechanism 4033. The top of the auxiliary feeding lifting mechanism 4033 is provided with an auxiliary feeding conveyor mechanism 4034. The auxiliary feeding conveyor mechanism 4034 is provided parallel to the slide rails 402. The end of the feeding rack 4015 away from the feeding conveyor belt 303 and the adjacent limiting rod 4016 form an auxiliary feeding trough 4018. After the receiving box 4017 is full, the box transport mechanism 403 moves along the slide rail 402 to the row corresponding to the receiving box 4017. At this time, the auxiliary feeding translation mechanism 4032 drives the auxiliary feeding lifting mechanism 4033 to move to the bottom of the receiving box 4017. Then, the output end of the auxiliary feeding lifting mechanism 4033 moves upward to lift the full receiving box 4017. At this time, the auxiliary feeding translation mechanism 4032 drives the receiving box 4017 to move to the auxiliary feeding trough 4018. Then, the auxiliary feeding lifting mechanism 4033 moves downward to remove the full receiving box 4017. When the receiving box 4017 moves to contact the surface of the auxiliary feeding conveying mechanism 4034, it moves with the auxiliary feeding conveying mechanism 4034 to both sides of the auxiliary feeding conveying mechanism 4034, thereby freeing up the top of the auxiliary feeding lifting mechanism 4033, which can realize the continuous collection of multiple receiving boxes 4017.

[0045] Working principle: During sorting, photovoltaic cells are fed through the feeding section 1. The material is placed on the surface of the feeding basket 103. The feeding conveyor belt 104 at the top of the feeding basket 103 is raised to be flush with the feeding conveyor belt 104 at the top of the mounting plate by the basket lifting mechanism 102. The feeding conveyor belt 104 is started, so that the photovoltaic cells can be fed. The lifting stacking rack 106 is used to stack the photovoltaic cells when the feeding conveyor belt 104 at the rear stops. When the photovoltaic cells flow between the feeding conveyor belts 104, the inverted microcrack detection mechanism 105 can detect cracks on the surface of the photovoltaic cells. When a photovoltaic cell with a crack is detected moves to the deflection conveyor belt 107, the automatic telescopic mechanism 1083 retracts, causing the deflection conveyor belt 107 at the top of the automatic telescopic mechanism 1083 to deflect downward, so that the damaged photovoltaic cells flow into the interior of the first receiving box with the deflection conveyor belt 107 for centralized processing.

[0046] Photovoltaic cells flow into the inspection section 2 along with the feeding conveyor belt 104. Upon passing the bottom of the first AOI inspection machine 202, a single side undergoes visual inspection. Then, they pass through the first PL inspection machine 203 for photoluminescence inspection. After passing the first PL inspection machine 203, the photovoltaic cells flow along the feeding conveyor belt 104 into the tilting groove on the side wall of the tilting wheel 2043. At this time, the tilting motor 2042 drives the tilting shaft to rotate, causing the tilting wheel 2043 to rotate accordingly. After the tilting wheel 2043 rotates 180°... The photovoltaic cells inside the flipping trough contact the feeding conveyor belt 104 on the other side of the flipping wheel 2043, causing the photovoltaic cells to flow backward with the feeding conveyor belt 104 after being flipped, thus achieving automatic flipping of the photovoltaic cells. After being flipped, the photovoltaic cells flow through the second AOI inspection machine 205 for double-sided visual inspection, and then move to the other side of the second AOI inspection machine 205 with the feeding conveyor belt 104. At this time, the photovoltaic cells are adsorbed by the feeding suction cup at the bottom of the rotating feeding robotic arm 2072. The movable end of the robotic arm 2072 moves away from the second AOI inspection machine 205, causing the loading suction cup and photovoltaic cells to move accordingly until the photovoltaic cells are directly above the end of the rotating loading frame 2075 connected to the loading conveyor belt 104. At this point, the loading suction cup lowers the photovoltaic cells, and the rotating mechanism 2074 drives the bottom rotating loading frame 2075 to rotate 90°, causing the photovoltaic cells to rotate and enter the IV inspection machine 206 for testing the photoelectric conversion efficiency and output power performance of the photovoltaic cells. After the test is completed, the loading rack 2075 is rotated 90° again. The loading suction cup at the bottom of the unloading robotic arm 2073 is rotated to transport the photovoltaic cells to the surface of the loading conveyor belt 104 on the other side. After the test, the photovoltaic cells flow into the interior of the upper paper separator section 3. At this time, the transport suction cup 302 at the bottom of the transport translation mechanism 301 adsorbs the photovoltaic cells on the surface of the loading conveyor belt 104 and then transports them to the surface of the unloading conveyor belt 303 on the other side, so that the photovoltaic cells flow backward with the unloading conveyor belt 303.

[0047] An upper paper-separating translation mechanism 306 is provided on the top of the side of the upper paper-separating section 3 facing the sorting section 4. An upper paper-separating suction cup 307 is fixedly connected to the bottom of the moving platform of the upper paper-separating translation mechanism 306. Several paper-separating trays 304 are fixedly provided on the bottom of the upper paper-separating translation mechanism 306 facing the feeding conveyor belt 104. The bottom of the paper-separating trays 304 is hollow. A paper-separating lifting mechanism 305 is connected to the bottom of the paper-separating trays 304. The movable end of the paper-separating lifting mechanism 305 extends into the interior of the paper-separating trays 304. A paper-separating detection mechanism 308 is fixed on the upper part of the side of the upper paper-separating translation mechanism 306 away from the conveying translation mechanism 301. The paper-separating detection mechanism 308 is located directly above the unloading conveyor belt 303. When the photovoltaic cells flow through the upper separator paper translation mechanism 306, the separator paper suction cup 307 at the bottom of the upper separator paper translation mechanism 306 adsorbs the separator paper inside the separator paper tray 304, and then moves it horizontally to place it on the surface of the photovoltaic cells to isolate the photovoltaic cells. The separator paper lifting mechanism 305 can lift the separator paper inside the separator paper box to prevent the separator paper inside the separator paper box from being too low, which would prevent the separator paper suction cup 307 from adsorbing the separator paper.

[0048] After passing through the upper separator, the photovoltaic cells flow into the sorting section 4 via the unloading conveyor belt 303. The cells are then attracted by the receiving suction cups 4014 at the bottom of the receiving rack 4013. The receiving robotic arm 4012 then moves the receiving rack 4013 towards the unloading trough until the photovoltaic cells are directly above the corresponding unloading box 4017. Based on the test results, the photovoltaic cells are placed into the corresponding receiving boxes 4017. Once the receiving boxes 4017 are full, the box transport mechanism 403 moves along the slide rail 402 to the row corresponding to that receiving box 4017. At this time, the auxiliary unloading translation mechanism 4032 drives the auxiliary unloading lifting mechanism 4033 to move to the row corresponding to that receiving box. The bottom of the receiving box 4017 is then lifted by the output end of the auxiliary feeding lifting mechanism 4033, which lifts the full receiving box 4017. At this time, the auxiliary feeding translation mechanism 4032 drives the receiving box 4017 to move to the auxiliary feeding trough 4018. Then, the auxiliary feeding lifting mechanism 4033 moves downward to remove the full receiving box 4017. When the receiving box 4017 moves to contact the surface of the auxiliary feeding conveying mechanism 4034, it moves with the auxiliary feeding conveying mechanism 4034 to both sides of the auxiliary feeding conveying mechanism 4034, thereby freeing up the top of the auxiliary feeding lifting mechanism 4033, which can realize the continuous collection of multiple receiving boxes 4017.

[0049] In this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0050] The above embodiments are used to further illustrate the present invention, but do not limit the present invention to these specific embodiments. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be understood as being within the protection scope of the present invention.

Claims

1. A photovoltaic cell testing and sorting device, characterized in that: The system includes a feeding section (1), a detection section (2), a paper-separating section (3), and a sorting section (4) arranged sequentially. A feeding conveyor belt (104) is horizontally arranged between the feeding section (1), the detection section (2), and the paper-separating section (3). A discharging conveyor belt (303) is horizontally arranged between the paper-separating section (3) and the sorting section (4). The detection section (2) includes a first AOI detector (202), a first PL detector (203), a second AOI detector (205), and an IV detector (4) arranged sequentially. The first PL inspection machine (203) and the second AOI inspection machine (205) are provided with a flipping mechanism (204), and the IV inspection machine (206) and the second AOI inspection machine (205) and the second PL inspection machine (208) are provided with an IV inspection rotation mechanism (207). The sorting section (4) is provided with a plurality of receiving mechanisms (401), and the bottom of the receiving mechanism (401) is provided with a material box transport mechanism (403).

2. The photovoltaic cell testing and sorting equipment according to claim 1, characterized in that: The input end of the feeding section (1) is provided with a basket lifting mechanism (102), and the movable end of the basket lifting mechanism (102) is fixedly connected to a feeding basket (103). A first mounting plate (101) is horizontally arranged in the middle of the inner side of the feeding section (1). The feeding conveyor belt (104) is arranged parallel to the upper part of the first mounting plate (101). The middle part of the feeding conveyor belt (104) is hollow. A lifting stacking rack (106) is arranged on the side of the feeding conveyor belt (104) facing the basket lifting mechanism (102). A reverse loading hidden crack detection mechanism (105) is arranged on the side of the lifting stacking rack (106) away from the basket lifting mechanism (102). A deflection conveyor belt (107) is rotatably connected to one end of the feeding conveyor belt (104) located at the output end of the feeding section (1). A discharge rotation mechanism (108) is arranged at the bottom of the deflection conveyor belt (107).

3. The photovoltaic cell testing and sorting equipment according to claim 2, characterized in that: The feeding rotation mechanism (108) includes an upper mounting frame (1081), the fixed end of the deflection conveyor belt (107) is hinged to the upper mounting frame (1081), the movable end of the deflection conveyor belt (107) is hinged to the piston rod of the automatic telescopic mechanism (1083), the bottom of the upper mounting frame (1081) is fixedly connected to a lower mounting frame (1082), the bottom end of the lower mounting frame (1082) extends to the bottom of the first mounting plate (101), the bottom end of the automatic telescopic mechanism (1083) is rotatably connected to the lower mounting frame (1082), the first mounting plate (101) is fixedly connected to a first material collection trough on the upper side of one end of the output end of the feeding section (1), and a first material receiving box (109) is detachably provided on the upper part of the first material collection trough.

4. The photovoltaic cell testing and sorting equipment according to claim 1, characterized in that: A second mounting plate (201) is horizontally arranged in the middle of the inner side of the detection section (2). The first AOI inspection machine (202) is fixedly arranged inside the detection section (2) on the side facing the feeding section (1). The first PL inspection machine (203) is fixedly arranged on the side of the first AOI inspection machine (202) away from the feeding section (1).

5. The photovoltaic cell testing and sorting equipment according to claim 1, characterized in that: The flipping mechanism (204) includes a pair of flipping fixing frames (2041). The flipping fixing frames (2041) are symmetrically arranged on both sides of the connection between adjacent feeding conveyor belts (104). A flipping shaft is rotatably connected between the top ends of the flipping fixing frames (2041). Several flipping wheels (2043) are fixedly arranged on the outside of the flipping shaft. The flipping wheels (2043) are located in the hollow part inside the feeding conveyor belt (104). A flipping motor (2042) is fixedly connected to the top of the outer wall of the flipping fixing frame (2041). The output end of the flipping motor (2042) is fixedly connected to the flipping shaft. Several flipping grooves (2044) are evenly opened on the side wall of the flipping wheel (2043) around the flipping shaft.

6. The photovoltaic cell testing and sorting equipment according to claim 1, characterized in that: The IV detection rotating mechanism (207) includes an IV detection fixing frame (2071), which is fixedly mounted on the top edge of the first mounting plate (101) away from the IV detection machine (206). A rotating mechanism (2074) is fixedly connected to the top of the IV detection fixing frame (2071) via a top rod. A rotating feeding frame (2075) is fixedly mounted at the bottom of the output end of the rotating mechanism (2074). The rotating feeding frame (2075) is arranged in a cross shape. The bottom of the rotating feeding frame (2075)... The part is rotatably connected to the first mounting plate (101) via a rotating table (2076). A rotating loading robot arm (2072) is provided on the side of the top of the IV detection fixture (2071) facing the second AOI detection machine (205), and a rotating unloading robot arm (2073) is provided on the side of the top of the IV detection fixture (2071) facing the second PL detection machine (208). The bottom of the movable end of the rotating loading robot arm (2072) and the rotating unloading robot arm (2073) facing the IV detection machine (206) are both fixedly connected to a loading suction cup.

7. A photovoltaic cell testing and sorting device according to claim 1, characterized in that: The end of the feeding conveyor belt (104) extends into the interior of the upper paper separator section (3). The unloading conveyor belt (303) is arranged parallel to the feeding conveyor belt (104). A transport translation mechanism (301) is provided on the top of the side of the upper paper separator section (3) facing the detection section (2). A transport suction cup (302) is fixedly connected to the bottom of the moving platform of the transport translation mechanism (301). The beginning of the unloading conveyor belt (303) is located below the transport translation mechanism (301). A second collection trough is fixedly provided at the bottom of the end of the feeding conveyor belt (104). A second receiving box is detachably provided on the upper part of the second collection trough.

8. A photovoltaic cell testing and sorting device according to claim 7, characterized in that: An upper paper-separating translation mechanism (306) is provided on the top of the side of the upper paper-separating section (3) facing the sorting section (4). An upper paper-separating suction cup (307) is fixedly connected to the bottom of the moving platform of the upper paper-separating translation mechanism (306). Several paper-separating trays (304) are fixedly provided on the bottom of the upper paper-separating translation mechanism (306) facing the feeding conveyor belt (104). The bottom of the paper-separating tray (304) is hollow. A paper-separating lifting mechanism (305) is connected to the bottom of the paper-separating tray (304). The movable end of the paper-separating lifting mechanism (305) extends into the interior of the paper-separating tray (304). A paper-separating detection mechanism (308) is fixed on the upper part of the side of the upper paper-separating translation mechanism (306) away from the conveying translation mechanism (301). The paper-separating detection mechanism (308) is located directly above the unloading conveyor belt (303).

9. A photovoltaic cell testing and sorting device according to claim 7, characterized in that: The receiving mechanism (401) includes a receiving fixing frame (4011), which is fixedly connected to the top inner side of the sorting section (4). Receiving mechanical arms (4012) are provided on both sides of the receiving fixing frame (4011). A receiving rack (4013) is fixedly connected to the side wall of the movable end of the receiving mechanical arm (4012). A receiving suction cup (4014) is fixedly connected to the bottom of the receiving rack (4013). A number of feeding racks (4015) are evenly arranged on the side of the unloading conveyor belt (303) facing the loading conveyor belt (104). A number of limiting rods (4016) are fixedly connected to the top of the feeding rack (4015). A number of feeding grooves are formed between the limiting rods (4016) and the feeding racks (4015). A number of feeding boxes (4017) are detachably provided inside the feeding grooves.

10. A photovoltaic cell testing and sorting device according to claim 9, characterized in that: The bottom of the feeding conveyor belt (303) is provided with several parallel slide rails (402). The top of the slide rails (402) is slidably connected to a material box transport mechanism (403). The material box transport mechanism (403) includes a base plate (4031). The bottom of the base plate (4031) is slidably connected to the slide rails (402). The top of the base plate (4031) is horizontally provided with an auxiliary feeding translation mechanism (4032). The translation direction of the auxiliary feeding translation mechanism (4032) is parallel to that of the slide rails (402). 2) Vertical setting: The top of the moving platform of the auxiliary feeding translation mechanism (4032) is vertically set with an auxiliary feeding lifting mechanism (4033), and the top of the auxiliary feeding lifting mechanism (4033) is set with an auxiliary feeding conveyor mechanism (4034). The auxiliary feeding conveyor mechanism (4034) is set parallel to the slide rail (402). The end of the feeding rack (4015) away from the feeding conveyor belt (303) and the adjacent limiting rod (4016) are arranged to form an auxiliary feeding trough (4018).

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