Photovoltaic cell testing and sorting equipment

Abstract

The photovoltaic cell testing and sorting equipment comprises a feeding section, a detection section, an upper partition paper section and a sorting section which are sequentially arranged, a feeding conveying belt is horizontally arranged among the feeding section, the detection section and the upper partition paper section, and a discharging conveying belt is horizontally arranged between the upper partition paper section and the sorting section; the detection section comprises a first AOI detection machine, a first PL detection machine, a second AOI detection machine, an IV detection machine and a second PL detection machine which are arranged in sequence, a turnover mechanism is arranged between the first PL detection machine and the second AOI detection machine, and IV detection rotating mechanisms are arranged between the IV detection machine and the second AOI detection machine and between the IV detection machine and the second PL detection machine. By arranging the first AOI detection machine, the first PL detection machine, the second AOI detection machine, the IV detection machine, the second PL detection machine and the turnover mechanism, all-dimensional multi-item detection of photovoltaic cells can be achieved, the detection precision is effectively improved, and mistakes and omissions during sorting are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic cell production equipment, and particularly relates to a photovoltaic cell testing and sorting device. Background Art

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

[0003] For example, the "sorting device for a photovoltaic cell" with the publication number CN114798490B includes a housing, an ultraviolet lamp, a first rotating shaft, a first movable plate, etc. An ultraviolet lamp for irradiating the photovoltaic cell is connected to the inner top of the housing, and the first rotating shaft is rotatably connected to the upper right side of the inner part of the housing, and the first movable plate is connected to the first rotating shaft. By pushing the photovoltaic cell onto the first movable plate and turning on the ultraviolet lamp, the ultraviolet lamp can irradiate the photovoltaic cell, and the photovoltaic cell can be detected by detecting the state of the lamp.

[0004] However, the above sorting device has a single detection item, cannot achieve precise detection of photovoltaic cells, has a low detection efficiency, requires manual operation, and is prone to damage to photovoltaic cells, reducing the yield. Summary of the Invention

[0005] The object of the present invention is to provide a photovoltaic cell testing and sorting device to solve the problems of low efficiency and low precision of existing detection devices.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A photovoltaic cell testing and sorting device includes a feeding section, a detection section, an upper separator section, and a sorting section arranged in sequence. A feeding conveyor belt is horizontally arranged between the feeding section, the detection section, and the upper separator section, and a discharging conveyor belt is horizontally arranged between the upper 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 in sequence. A flipping mechanism is arranged between the first PL detector and the second AOI detector, and an IV detection rotating mechanism is arranged between the IV detector and the second AOI detector and the second PL detector. A plurality of material receiving mechanisms are arranged inside the sorting section, and a material box handling mechanism is arranged at the bottom of the material receiving mechanism.

[0008] Further, a basket lifting mechanism is provided at the input end of the loading section. The movable end of the basket lifting mechanism is fixedly connected with a loading basket. A first mounting plate is horizontally arranged in the middle of the inner side of the loading section. The loading conveyor belt is arranged in parallel above the first mounting plate. The middle part of the loading conveyor belt is arranged in a hollow shape. A lifting stacking rack is arranged on one side of the loading conveyor belt facing the basket lifting mechanism. A reverse cracking detection mechanism is arranged on the side of the lifting stacking rack away from the basket lifting mechanism. One end of the loading conveyor belt located at the output end of the loading section is rotatably connected with a deflecting conveyor belt. A blanking rotating mechanism is arranged at the bottom of the deflecting conveyor belt.

[0009] Further, the blanking rotating mechanism includes an upper mounting frame. The fixed-end rotating shaft of the deflecting conveyor belt is hinged with the upper mounting frame. The end of the movable-end rotating shaft of the deflecting conveyor belt is hinged with the piston rod of the automatic telescopic mechanism. The bottom of the upper mounting frame is fixedly connected with a lower 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 with the lower mounting frame. A first collecting trough is fixedly connected to the upper side of one end of the first mounting plate located at the output end of the loading section. A first receiving box is detachably arranged on the upper part of the first collecting trough.

[0010] Further, a second mounting plate is horizontally arranged in the middle of the inner side of the detection section. The first AOI detector is fixedly arranged on one side of the detection section facing the loading section. The first PL detector is fixedly arranged on the side of the first AOI detector away from the loading section.

[0011] Further, the flipping mechanism includes a pair of flipping fixed frames. The flipping fixed frames are symmetrically arranged on both sides of the connection of adjacent loading conveyor belts. A flipping shaft is rotatably connected between the tops of the flipping fixed frames. A plurality of flipping wheels are fixedly arranged on the outside of the flipping shaft. The flipping wheels are located in the hollow part inside the loading conveyor belt. The top of the outer side wall of the flipping fixed frame is fixedly connected with a flipping motor. The output end of the flipping motor is fixedly connected with the flipping shaft. A plurality of flipping grooves are evenly arranged on the side wall of the flipping wheel around the flipping shaft.

[0012] Further, the IV detection rotating mechanism includes an IV detection fixing frame which is fixedly arranged on the top of the first mounting plate, away from the side edge of the IV detector. The top of the IV detection fixing frame is fixedly connected to a rotating mechanism through a top rod. The bottom of the output end of the rotating mechanism is fixedly provided with a rotating loading rack which is arranged in a "cross" shape. The bottom of the rotating loading rack is rotatably connected to the first mounting plate through a rotating table. On the side of the top of the IV detection fixing frame facing the second AOI detector, there is a rotating loading robotic arm, and on the side of the top of the IV detection fixing frame facing the second PL detector, there is a rotating unloading robotic arm. The bottom of the movable ends of the rotating loading robotic arm and the rotating unloading robotic arm facing the IV detector are both fixedly connected with loading suction cups.

[0013] Further, the end of the loading conveyor belt extends into the inner part of the upper paper separating section. The unloading conveyor belt is arranged parallel to the loading conveyor belt. On the top of the inner part of the upper paper separating section, facing the detection section, there is a handling translation mechanism. The bottom of the moving platform of the handling translation mechanism is fixedly connected with a handling suction cup. The head end of the unloading conveyor belt is located below the handling translation mechanism. The bottom of the end of the loading conveyor belt is fixedly provided with a second aggregate chute, and a second receiving box is detachably arranged on the upper part of the second aggregate chute.

[0014] Further, on the top of the inner part of the upper paper separating section, facing the sorting section, there is an upper paper separating translation mechanism. The bottom of the moving platform of the upper paper separating translation mechanism is fixedly connected with an upper paper separating suction cup. On the side of the bottom of the upper paper separating translation mechanism facing the loading conveyor belt, there are several paper separating trays fixedly arranged. The bottom of the paper separating tray is arranged in a hollow shape. The bottom of the paper separating tray is connected with a paper separating lifting mechanism, and the movable end of the paper separating lifting mechanism extends into the inner part of the paper separating tray. On the upper part of the side of the upper paper separating translation mechanism away from the handling translation mechanism, there is a paper separating detection mechanism which is located directly above the unloading conveyor belt.

[0015] Further, the receiving mechanism includes a receiving fixing frame which is fixedly connected to the inner top of the sorting section. On both sides of the receiving fixing frame, there are receiving robotic arms. The side wall of the movable end of the receiving robotic arm is fixedly connected with a receiving rack. The bottom of the receiving rack is fixedly connected with a receiving suction cup. On the side of the unloading conveyor belt facing the loading conveyor belt, several discharging racks are evenly arranged. The top of the discharging rack is fixedly connected with several limiting rods, and several discharging grooves are formed by enclosing between the limiting rods and the discharging rack. Several discharging boxes are detachably arranged in the discharging grooves.

[0016] Furthermore, a number of slide rails are arranged in parallel at the bottom of the blanking conveyor belt. A cartridge handling mechanism is slidably connected to the top of the slide rails. The cartridge handling mechanism includes a bottom plate, the bottom of the bottom plate is slidably connected to the slide rails, an auxiliary blanking translation mechanism is horizontally arranged at the top of the bottom plate, the translation direction of the auxiliary blanking translation mechanism is perpendicular to the slide rails, an auxiliary blanking lifting mechanism is vertically arranged on the top of the moving platform of the auxiliary blanking translation mechanism, an auxiliary blanking conveyor mechanism is arranged at the top of the auxiliary blanking lifting mechanism, the auxiliary blanking conveyor mechanism is arranged in parallel with the slide rails, and an auxiliary blanking groove is formed by enclosing between one end of the blanking rack away from the blanking conveyor belt and the adjacent limiting rod.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. The photovoltaic cell testing and sorting equipment of the present invention can realize the full - range and multi - item detection of photovoltaic cells by setting a first AOI detector, a first PL detector, a second AOI detector, an IV detector, a second PL detector and a flipping mechanism, effectively improving the detection accuracy and avoiding misdetection and omission during sorting.

[0019] 2. The photovoltaic cell testing and sorting equipment of the present invention can realize the full - automatic loading and unloading of photovoltaic cells by setting a loading section and a sorting section, improving the detection efficiency, and can avoid the damage of photovoltaic cells caused by manual operation, effectively improving the yield.

[0020] 3. The photovoltaic cell testing and sorting equipment of the present invention can assist in handling the sorted cartridges by setting a cartridge handling mechanism, improving the sorting and blanking efficiency of photovoltaic cells and further improving the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is the overall structural schematic diagram of a photovoltaic cell testing and sorting equipment of the present invention;

[0022] Figure 2 is the internal structural schematic diagram of the loading section of a photovoltaic cell testing and sorting equipment of the present invention;

[0023] Figure 3 is the side view internal structural schematic diagram of the loading section of a photovoltaic cell testing and sorting equipment of the present invention;

[0024] Figure 4 is the internal structural schematic diagram of the detection section of a photovoltaic cell testing and sorting equipment of the present invention;

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

[0026] Figure 6Schematic diagram of the IV detection rotating mechanism of a photovoltaic cell testing and sorting device according to the present invention;

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

[0028] Figure 8 Schematic diagram of the paper separation detection mechanism of a photovoltaic cell testing and sorting device according to the present invention;

[0029] Figure 9 Schematic diagram of the internal structure of the sorting section of a photovoltaic cell testing and sorting device according to the present invention;

[0030] Figure 10 Schematic diagram of the material collection mechanism of a photovoltaic cell testing and sorting device according to the present invention;

[0031] Figure 11 Schematic diagram of the structure of the auxiliary blanking chute of a photovoltaic cell testing and sorting device according to the present invention;

[0032] Figure 12 Schematic diagram of the material box handling mechanism of a photovoltaic cell testing and sorting device according to the present invention.

[0033] Reference numerals: 1, loading section; 101, first mounting plate; 102, basket lifting mechanism; 103, loading basket; 104, loading conveyor belt; 105, inverted crack detection mechanism; 106, lifting stacking rack; 107, deflecting conveyor belt; 108, blanking rotating mechanism; 1081, upper mounting frame; 1082, lower mounting frame; 1083, automatic telescoping mechanism; 109, first receiving box; 2, inspection section; 201, second mounting plate; 202, first AOI inspection machine; 203, first PL inspection machine; 204, flipping mechanism; 2041, flipping fixing frame; 2042, flipping motor; 2043, flipping wheel; 2044, flipping groove; 205, second AOI inspection machine; 206, IV inspection machine; 207, IV inspection rotating mechanism; 2071, IV inspection fixing frame; 2072, rotating loading robotic arm; 2073, rotating blanking robotic arm; 2074, rotating mechanism; 2075, rotating loading rack; 2076, rotating table; 208, second PL inspection machine; 3, upper paper separating section; 301, handling and translation mechanism; 302, handling suction cup; 303, blanking conveyor belt; 304, paper separating tray; 305, paper separating lifting mechanism; 306, upper paper separating translation mechanism; 307, upper paper separating suction cup; 308, paper separating inspection mechanism; 4, sorting section; 401, receiving mechanism; 4011, receiving fixing frame; 4012, receiving robotic arm; 4013, receiving rack; 4014, receiving suction cup; 4015, discharging rack; 4016, limiting rod; 4017, discharging box; 4018, auxiliary blanking chute; 402, slide rail; 403, box handling mechanism; 4031, bottom plate; 4032, auxiliary blanking translation mechanism; 4033, auxiliary blanking lifting mechanism; 4034, auxiliary blanking conveyor mechanism. Detailed implementation manners

[0034] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0035] Refer to Figure 1, the photovoltaic cell testing and sorting equipment of this embodiment includes a feeding section 1, a detection section 2, an upper paper separation section 3, and a sorting section 4 arranged in sequence. A feeding conveyor belt 104 is horizontally arranged between the feeding section 1, the detection section 2, and the upper paper separation section 3. A discharging conveyor belt 303 is horizontally arranged between the upper paper separation section 3 and the sorting section 4. The detection section 2 is used for multi-item and all-round detection of photovoltaic cells. The detection section 2 includes a first AOI detector 202, a first PL detector 203, a second AOI detector 205, an IV detector 206, and a second PL detector 208 arranged in sequence. The first AOI detector 202 is used for visual inspection of one side of the photovoltaic cell. The first PL detector 203 is used for one-sided photoluminescence detection of the photovoltaic cell. The second AOI detector 205 is used for double-sided visual inspection of the photovoltaic cell. The second PL detector 208 is used for double-sided photoluminescence detection of the photovoltaic cell. The IV detector 206 is used for detecting the photoelectric conversion efficiency and output power performance of the photovoltaic cell. A flipping mechanism 204 is arranged between the first PL detector 203 and the second AOI detector 205, which is used for automatically flipping the photovoltaic cell. An IV detection rotation mechanism 207 is arranged between the IV detector 206 and the second AOI detector 205 and the second PL detector 208, which is used for rotating and transporting the photovoltaic cell during IV detection. The upper paper separation section 3 is used for transporting the photovoltaic cell to the discharging conveyor belt 303 and covering the surface of the photovoltaic cell with separation paper to avoid damage caused by collision when the photovoltaic cells are stacked. A number of material receiving mechanisms 401 are arranged inside the sorting section 4, which are used for classifying, stacking, and receiving the detected photovoltaic cells. A material box handling mechanism 403 is arranged at the bottom of the material receiving mechanism 401, which is used for assisting in handling the full material boxes and filling the empty positions with empty material boxes to improve the material receiving efficiency.

[0036] Reference Figure 2, a basket lifting mechanism 102 is provided at the input end of the loading section 1. The movable end of the basket lifting mechanism 102 is fixedly connected with a loading basket 103. A first mounting plate 101 is horizontally arranged in the middle inside the loading section 1. A loading conveyor belt 104 is arranged in parallel above the first mounting plate 101. The middle part of the loading conveyor belt 104 is arranged in a hollow shape. A lifting stacking rack 106 is arranged on the side of the loading conveyor belt 104 facing the basket lifting mechanism 102. A reverse-mounted crack detection mechanism 105 is arranged on the side of the lifting stacking rack 106 away from the basket lifting mechanism 102. One end of the loading conveyor belt 104 at the output end of the loading section 1 is rotatably connected with a deflecting conveyor belt 107. A blanking rotating mechanism 108 is arranged at the bottom of the deflecting conveyor belt 107. When 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 lifted by the basket lifting mechanism 102 to be flush with the loading conveyor belt 104 at the top of the mounting plate. The loading conveyor belt 104 is started, so that the photovoltaic cells start to 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 reverse-mounted crack detection mechanism 105.

[0037] Reference Figure 3 , the blanking rotating mechanism 108 includes an upper mounting frame 1081. The fixed-end rotating shaft of the deflecting conveyor belt 107 is hinged with the upper mounting frame 1081. The end of the movable-end rotating shaft of the deflecting conveyor belt 107 is hinged with the piston rod of an automatic telescopic mechanism 1083. The bottom of the upper mounting frame 1081 is fixedly connected with 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 with the lower mounting frame 1082. A first collecting trough is fixedly connected to the upper side of one end of the first mounting plate 101 at the output end of the loading section 1. A first receiving box 109 is detachably arranged on the upper part of the first collecting trough. When it is detected that the cracked photovoltaic cells move to the deflecting conveyor belt 107, the automatic telescopic mechanism 1083 contracts, driving the deflecting conveyor belt 107 at the top of the automatic telescopic mechanism 1083 to deflect downward, so that the damaged photovoltaic cells flow into the inside of the first receiving box 109 along with the deflecting conveyor belt 107, facilitating their centralized treatment.

[0038] Reference Figure 4, a second mounting plate 201 is horizontally arranged in the middle of the inner side of the detection section 2. The first AOI detector 202 is fixedly arranged on one side of the interior of the detection section 2 facing the feeding section 1, and the first PL detector 203 is fixedly arranged on the side of the first AOI detector 202 away from the feeding section 1. The photovoltaic cell enters the interior of the detection section 2 along with the flow of the feeding conveyor belt 104, and its single side is visually inspected when passing through the bottom of the first AOI detector 202, and then it is subjected to photoluminescence detection by the first PL detector 203.

[0039] Reference Figure 5 , 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 of adjacent feeding conveyor belts 104. A flipping shaft is rotatably connected between the tops of the flipping fixing frames 2041. A plurality of flipping wheels 2043 are fixedly arranged on the outside of the flipping shaft. The flipping wheels 2043 are located in the hollow part on the inner side of the feeding conveyor belt 104. The top of the outer side wall of the flipping fixing frame 2041 is fixedly connected with a flipping motor 2042. The output end of the flipping motor 2042 is fixedly connected with the flipping shaft. A plurality of flipping grooves 2044 are evenly formed on the side wall of the flipping wheel 2043 around the flipping shaft. After the photovoltaic cell passes through the first PL detector 203, it flows into the flipping grooves on the side wall of the flipping wheel 2043 along with the feeding conveyor belt 104. At this time, the flipping motor 2042 drives the flipping shaft to start rotating, so that the flipping wheels 2043 rotate accordingly. After the flipping wheels 2043 rotate 180°, the photovoltaic cell in the flipping grooves contacts the feeding conveyor belt 104 on the other side of the flipping wheels 2043, so that the photovoltaic cell flows backward along with the feeding conveyor belt 104 after being flipped, realizing the automatic flipping of the photovoltaic cell.

[0040] Reference Figure 6, the IV detection rotating mechanism 207 includes an IV detection fixing frame 2071. The IV detection fixing frame 2071 is fixedly arranged on the top of the first mounting plate 101, away from the side edge of the IV detector 206. The top of the IV detection fixing frame 2071 is fixedly connected to a rotating mechanism 2074 through a top rod. The bottom of the output end of the rotating mechanism 2074 is fixedly provided with a rotating loading rack 2075. The rotating loading rack 2075 is arranged in a "cross" shape. The bottom of the rotating loading rack 2075 is rotatably connected to the first mounting plate 101 through a rotating table 2076. On the side of the top of the IV detection fixing frame 2071 facing the second AOI detector 205, there is a rotating loading robotic arm 2072. On the side of the top of the IV detection fixing frame 2071 facing the second PL detector 208, there is a rotating unloading robotic arm 2073. At the bottom of the movable ends of the rotating loading robotic arm 2072 and the rotating unloading robotic arm 2073 facing the IV detector 206, there are fixedly connected loading suction cups. After the photovoltaic cell is turned over, it flows through the second AOI detector 205 for double-sided vision inspection, and then moves to the other side of the second AOI detector 205 along with the loading conveyor belt 104. At this time, the photovoltaic cell is adsorbed by the loading suction cup at the bottom of the rotating loading robotic arm 2072. As the movable end of the rotating loading robotic arm 2072 moves away from the second AOI detector 205, it drives the loading suction cup and the photovoltaic cell to move accordingly until the photovoltaic cell moves directly above the end of the rotating loading rack 2075 connected to the loading conveyor belt 104. At this time, the loading suction cup puts down the photovoltaic cell, and the rotating mechanism 2074 drives the rotating loading rack 2075 at the bottom to rotate 90°, so that the photovoltaic cell rotates and enters the IV detector 206 to detect the photoelectric conversion efficiency and output power performance of the photovoltaic cell. After the detection is completed, the rotating loading rack 2075 rotates 90° again, and the photovoltaic cell is conveyed to the surface of the loading conveyor belt 104 on the other side again through the loading suction cup at the bottom of the rotating unloading robotic arm 2073.

[0041] Reference Figure 7 , the end of the loading conveyor belt 104 extends into the inner part of the upper paper separation section 3. The unloading conveyor belt 303 is arranged parallel to the loading conveyor belt 104. Inside the upper paper separation section 3, on the top side facing the detection section 2, there is a handling and translation mechanism 301. The bottom of the moving platform of the handling and translation mechanism 301 is fixedly connected to a handling suction cup 302. The head end of the unloading conveyor belt 303 is located below the handling and translation mechanism 301. At the bottom of the end of the loading conveyor belt 104, there is fixedly provided a second aggregate tank. The upper part of the second aggregate tank is detachably provided with a second receiving box. After being detected, the photovoltaic cells flow into the inner part of the upper paper separation section 3. At this time, the photovoltaic cells on the surface of the loading conveyor belt 104 are adsorbed by the handling suction cup 302 at the bottom of the handling and translation mechanism 301, and then translated and conveyed to the surface of the unloading conveyor belt 303 on the other side, so that the photovoltaic cells flow backward along with the unloading conveyor belt 303.

[0042] On the top of the inner side of the upper separator paper section 3 facing the sorting section 4, an upper separator paper translation mechanism 306 is provided. At the bottom of the moving table of the upper separator paper translation mechanism 306, an upper separator paper suction cup 307 is fixedly connected. On the side of the bottom of the upper separator paper translation mechanism 306 facing the feeding conveyor belt 104, a number of separator paper trays 304 are fixedly arranged. The bottom of the separator paper tray 304 is provided in a hollowed-out shape. The bottom of the separator paper tray 304 is connected with a separator paper lifting mechanism 305. The movable end of the separator paper lifting mechanism 305 extends into the interior of the separator paper tray 304. On the upper part of the side of the upper separator paper translation mechanism 306 away from the handling translation mechanism 301, a separator paper detection mechanism 308 is fixed. The separator paper detection mechanism 308 is located directly above the discharging conveyor belt 303. When the photovoltaic cell flows 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 translates and places it on the surface of the photovoltaic cell to isolate the photovoltaic cell. The separator paper lifting mechanism 305 can lift the separator paper inside the separator paper box to prevent the separator paper suction cup 307 from being unable to adsorb the separator paper due to the too low height of the separator paper inside the separator paper box.

[0043] Reference Figure 9 - 10 The material receiving mechanism 401 includes a material receiving fixed frame 4011, which is fixedly connected to the inner top of the sorting section 4. On both sides of the material receiving fixed frame 4011, material receiving robotic arms 4012 are provided. On the side wall of the movable end of the material receiving robotic arm 4012, a material receiving frame 4013 is fixedly connected. At the bottom of the material receiving frame 4013, a material receiving suction cup 4014 is fixedly connected. On the side of the discharging conveyor belt 303 facing the feeding conveyor belt 104, a number of discharging frames 4015 are evenly arranged. At the top of the discharging frame 4015, a number of limiting rods 4016 are fixedly connected. Between the limiting rods 4016 and the discharging frame 4015, a number of discharging grooves are enclosed. Inside the discharging grooves, a number of discharging boxes 4017 are detachably arranged. After passing through the upper separator paper, the photovoltaic cells flow into the interior of the sorting section 4 along with the discharging conveyor belt 303. At this time, the material receiving suction cup 4014 at the bottom of the material receiving frame 4013 adsorbs the photovoltaic cells, and then the material receiving robotic arm 4012 drives the material receiving frame 4013 to move towards the discharging groove until the photovoltaic cells move directly above the corresponding discharging box 4017, and the photovoltaic cells are respectively placed into the corresponding discharging boxes 4017 according to the detection results.

[0044] Reference Figure 11 - 12, several slide rails 402 are arranged in parallel at the bottom of the blanking conveyor belt 303. A material box handling mechanism 403 is slidably connected to the top of the slide rails 402. The material box handling mechanism 403 includes a bottom plate 4031, the bottom of the bottom plate 4031 is slidably connected to the slide rails 402, an auxiliary blanking translation mechanism 4032 is horizontally arranged at the top of the bottom plate 4031, the translation direction of the auxiliary blanking translation mechanism 4032 is perpendicular to the slide rails 402, an auxiliary blanking lifting mechanism 4033 is vertically arranged on the top of the moving platform of the auxiliary blanking translation mechanism 4032, an auxiliary blanking conveying mechanism 4034 is arranged at the top of the auxiliary blanking lifting mechanism 4033, the auxiliary blanking conveying mechanism 4034 is arranged in parallel with the slide rails 402. An auxiliary blanking groove 4018 is formed by enclosing the end of the material placing rack 4015 far away from the blanking conveyor belt 303 and the adjacent limiting rod 4016. After the material receiving box 4017 is stacked full, the material box handling mechanism 403 moves along the slide rails 402 to the corresponding row of the material receiving box 4017. At this time, the auxiliary blanking translation mechanism 4032 drives the auxiliary blanking lifting mechanism 4033 to move horizontally to the bottom of the material receiving box 4017. Then the output end of the auxiliary blanking lifting mechanism 4033 moves upward to lift the stacked full material receiving box 4017. At this time, the auxiliary blanking translation mechanism 4032 drives the material receiving box 4017 to move to the auxiliary blanking groove 4018. Then the auxiliary blanking lifting mechanism 4033 moves downward to remove the stacked full material receiving box 4017. When the material receiving box 4017 moves to contact the surface of the auxiliary blanking conveying mechanism 4034, it moves along the auxiliary blanking conveying mechanism 4034 to both sides of the auxiliary blanking conveying mechanism 4034, so that the top of the auxiliary blanking lifting mechanism 4033 is vacated, and continuous collection of multiple material receiving boxes 4017 can be realized.

[0045] Working principle: During sorting, the photovoltaic cells are fed through the feeding section 1. When feeding, 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 lifted by the basket lifting mechanism 102 to be flush with the feeding conveyor belt 104 at the top of the mounting plate. The feeding conveyor belt 104 is started, and the photovoltaic cells start to be fed. The lifting stacking rack 106 is used to stack the photovoltaic cells when the feeding conveyor belt 104 at the rear stops running. When the photovoltaic cells flow between the feeding conveyor belts 104, the cracks on the surface of the photovoltaic cells can be detected by the upside-down crack detection mechanism 105; when the detected cracked photovoltaic cells move to the deflection conveyor belt 107, the automatic telescopic mechanism 1083 contracts, driving 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 material receiving box along with the deflection conveyor belt 107, facilitating their centralized treatment;

[0046] The photovoltaic cell enters the interior of the detection section 2 along with the flow of the loading conveyor belt 104. When passing under the first AOI detector 202, a single-sided visual inspection is performed on it. Then, it passes through the first PL detector 203 for photoluminescence detection. After passing through the first PL detector 203, the photovoltaic cell flows into the flipping groove on the side wall of the flipping wheel 2043 along with the loading 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 cell in its flipping groove contacts the loading conveyor belt 104 on the other side of the flipping wheel 2043, enabling the photovoltaic cell to flow backward along with the loading conveyor belt 104 after being flipped, achieving automatic flipping of the photovoltaic cell; after being flipped, the photovoltaic cell flows through the second AOI detector 205 for double-sided visual inspection, and then moves to the other side of the second AOI detector 205 along with the loading conveyor belt 104. At this time, the loading suction cup at the bottom of the rotating loading robotic arm 2072 adsorbs the photovoltaic cell. As the moving end of the rotating loading robotic arm 2072 moves away from the second AOI detector 205, it drives the loading suction cup and the photovoltaic cell to move accordingly until the photovoltaic cell moves directly above the connection end of the rotating loading rack 2075 and the loading conveyor belt 104. At this time, the loading suction cup drops the photovoltaic cell, and the rotating mechanism 2074 drives the rotating loading rack 2075 at the bottom to rotate 90°, causing the photovoltaic cell to rotate and enter the IV detector 206 to detect the photoelectric conversion efficiency and output power performance of the photovoltaic cell. After the detection is completed, the rotating loading rack 2075 rotates 90° again, and the loading suction cup at the bottom of the rotating unloading robotic arm 2073 transports the photovoltaic cell to the surface of the loading conveyor belt 104 on the other side again; the detected photovoltaic cell flows into the interior of the upper separator section 3. At this time, the handling suction cup 302 at the bottom of the handling translation mechanism 301 adsorbs the photovoltaic cell on the surface of the loading conveyor belt 104, and then translates and transports it to the surface of the other unloading conveyor belt 303, enabling the photovoltaic cell to flow backward along with the unloading conveyor belt 303;

[0047] On the top of the inner side of the upper separator paper section 3 facing the sorting section 4, there is an upper separator paper translation mechanism 306. At the bottom of the moving table of the upper separator paper translation mechanism 306, there is a fixed connection with an upper separator paper suction cup 307. On the side of the bottom of the upper separator paper translation mechanism 306 facing the feeding conveyor belt 104, there are several separator paper trays 304 fixed. The bottom of the separator paper tray 304 is of a hollow type. The bottom of the separator paper tray 304 is connected with a separator paper lifting mechanism 305. The movable end of the separator paper lifting mechanism 305 extends into the interior of the separator paper tray 304. On the upper part of the side of the upper separator paper translation mechanism 306 away from the handling translation mechanism 301, there is a separator paper detection mechanism 308. The separator paper detection mechanism 308 is located directly above the discharging conveyor belt 303. When the photovoltaic cell flows 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 translates and places it on the surface of the photovoltaic cell to isolate the photovoltaic cell. The separator paper lifting mechanism 305 can lift the separator paper inside the separator paper tray to prevent the separator paper suction cup 307 from being unable to adsorb the separator paper due to the too low height of the separator paper inside the separator paper tray;

[0048] The photovoltaic cell after passing through the upper separator paper flows into the interior of the sorting section 4 along with the discharging conveyor belt 303. At this time, the receiving suction cup 4014 at the bottom of the receiving frame 4013 adsorbs the photovoltaic cell, and then the receiving manipulator 4012 drives the receiving frame 4013 to move in the direction of the discharging groove until the photovoltaic cell moves directly above the corresponding discharging box 4017, and the photovoltaic cell is respectively placed into the corresponding receiving box 4017 according to the detection results; after the receiving box 4017 is filled, the box handling mechanism 403 moves along the slide rail 402 to the row corresponding to this receiving box 4017. At this time, the auxiliary discharging translation mechanism 4032 drives the auxiliary discharging lifting mechanism 4033 to translate and move to the bottom of this receiving box 4017, and then the output end of the auxiliary discharging lifting mechanism 4033 moves upward to lift the filled receiving box 4017. At this time, the auxiliary discharging translation mechanism 4032 drives the receiving box 4017 to move to the auxiliary discharging groove 4018, and then the auxiliary discharging lifting mechanism 4033 moves downward to remove the filled receiving box 4017. When the receiving box 4017 moves to contact the surface of the auxiliary discharging conveyor mechanism 4034, it moves along the auxiliary discharging conveyor mechanism 4034 to both sides of the auxiliary discharging conveyor mechanism 4034, so that the top of the auxiliary discharging lifting mechanism 4033 is vacated, and continuous collection of multiple receiving boxes 4017 can be realized.

[0049] In the present invention, unless otherwise clearly stipulated and defined, terms such as "connected", "connected to", "fixed" and the like shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention may be understood according to 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 replacements, improvements, etc. made within the spirit and principle of the present invention shall be understood to be within the protection scope of the present invention.

Claims

1. A photovoltaic cell testing and sorting device, characterized in that: The invention comprises a feeding section (1), a detection section (2), an upper paper separator section (3) and a sorting section (4) which are arranged in sequence, a feeding conveyor belt (104) is arranged horizontally between the feeding section (1), the detection section (2) and the upper paper separator section (3), a unloading conveyor belt (303) is arranged horizontally between the upper paper separator section (3) and the sorting section (4), the detection section (2) comprises a first AOI detection machine (202), a first PL detection machine (203), a second AOI detection machine (205), an IV detection machine ( 206) and a second PL inspection machine (208), a flipping mechanism (204) is arranged between the first PL inspection machine (203) and the second AOI inspection machine (205), an IV inspection rotating mechanism (207) is arranged between the IV inspection machine (206) and the second AOI inspection machine (205) and the second PL inspection machine (208), a plurality of material receiving mechanisms (401) are arranged inside the sorting section (4), and a material box conveying mechanism (403) is arranged at the bottom of the material receiving mechanism (401).

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), the movable end of the basket lifting mechanism (102) is fixedly connected with 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 arranged in a hollow type, a lifting material stacking rack (106) is arranged on the side of the feeding conveyor belt (104) facing the basket lifting mechanism (102), and an inverted hidden crack detection mechanism (105) is arranged on the side of the lifting material stacking rack (106) away from the basket lifting mechanism (102), and one end of the feeding conveyor belt (104) located at the output end of the feeding section (1) is rotatably connected with a deflection conveyor belt (107), and a feeding 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 1, characterized in that: The unloading rotating mechanism (108) comprises an upper mounting frame (1081), a fixed end rotating shaft of the deflection conveyor belt (107) is hinged to the upper mounting frame (1081), and the movable end rotating shaft 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), and the first mounting plate (101) is fixedly connected to a first material collecting trough on the upper side of one end located at the output end of the loading section (1), and a first material receiving box (109) is detachably provided on the upper part of the first material collecting 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 detection machine (202) is fixedly arranged on a side of the detection section (2) facing the loading section (1); and the first PL detection machine (203) is fixedly arranged on a side of the first AOI detection machine (202) away from the loading section (1).

5. The photovoltaic cell testing and sorting equipment according to claim 1, characterized in that: The flipping mechanism (204) comprises a pair of flipping fixed frames (2041), the flipping fixed 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 fixed frames (2041), a plurality of flipping wheels (2043) are fixedly arranged outside 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 fixed frame (2041), the output end of the flipping motor (2042) is fixedly connected to the flipping shaft, and a plurality of flipping grooves (2044) are evenly arranged 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) comprises an IV detection fixing frame (2071), the IV detection fixing frame (2071) is fixedly arranged on the top of the first mounting plate (101) at a side edge 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 material loading frame (2075) is fixedly arranged at the bottom of the output end of the rotating mechanism (2074), the rotating material loading frame (2075) is arranged in a "cross" shape, and the bottom of the rotating material loading frame (2075) is fixedly arranged at the output end of the rotating mechanism (2074). The part is rotatably connected to the first mounting plate (101) via a rotating table (2074); a rotating loading robot arm (2072) is provided on the top of the IV detection fixed frame (2071) facing the side of the second AOI detection machine (205); a rotating unloading robot arm (2073) is provided on the top of the IV detection fixed frame (2071) facing the side of the second PL detection machine (208); and loading suction cups are fixedly connected to the bottom of the movable ends of the rotating loading robot arm (2072) and the rotating unloading robot arm (2073) on the side facing the IV detection machine (206).

7. The photovoltaic cell testing and sorting equipment according to claim 1, characterized in that: The end of the loading conveyor belt (104) extends to the interior of the upper paper separator section (3), and the unloading conveyor belt (303) is arranged parallel to the loading conveyor belt (104). A transporting and translational mechanism (301) is arranged at the top of the interior of the upper paper separator section (3) facing the detection section (2). A transporting suction cup (302) is fixedly connected to the bottom of the moving platform of the transporting and translational mechanism (301). The head end of the unloading conveyor belt (303) is located at the lower side of the transporting and translational mechanism (301). A second material collecting trough is fixedly arranged at the bottom of the end of the loading conveyor belt (104), and a second material receiving box is detachably arranged on the upper part of the second material collecting trough.

8. The photovoltaic cell testing and sorting equipment according to claim 7, characterized in that: An upper paper separator translation mechanism (306) is arranged at the top of one side of the upper paper separator section (3) facing the sorting section (4); an upper paper separator suction cup (307) is fixedly connected to the bottom of the movable platform of the upper paper separator translation mechanism (306); a plurality of paper separator trays (304) are fixedly arranged at the bottom of the upper paper separator translation mechanism (306) facing the side of the loading conveyor belt (104); the bottom of the paper separator tray (304) is hollow-out; a paper separator lifting mechanism (305) is connected to the bottom of the paper separator tray (304); a movable end of the paper separator lifting mechanism (305) extends to the inside of the paper separator tray (304); a paper separator detection mechanism (308) is fixed to the upper part of the side of the upper paper separator translation mechanism (306) away from the transport translation mechanism (301); and the paper separator detection mechanism (308) is located directly above the unloading conveyor belt (303).

9. The photovoltaic cell testing and sorting equipment according to claim 7, characterized in that: The material receiving mechanism (401) comprises a material receiving fixed frame (4011), the material receiving fixed frame (4011) is fixedly connected to the inner top of the sorting section (4), both sides of the material receiving fixed frame (4011) are provided with material receiving mechanical arms (4012), the movable end side wall of the material receiving mechanical arm (4012) is fixedly connected with a material receiving frame (4013), the bottom of the material receiving frame (4013) is fixedly connected with a material receiving suction cup (4014), a plurality of material discharge frames (4015) are evenly arranged on the side of the unloading conveyor belt (303) facing the loading conveyor belt (104), a plurality of limiting rods (4016) are fixedly connected to the top of the material discharge frame (4015), a plurality of material discharge troughs are arranged between the limiting rods (4016) and the material discharge frame (4015), and a plurality of material discharge boxes (4017) are detachably arranged inside the material discharge trough.

10. The photovoltaic cell testing and sorting equipment according to claim 9, characterized in that: A plurality of slide rails (402) are arranged in parallel at the bottom of the material unloading conveyor belt (303), and a material box conveying mechanism (403) is slidably connected to the top of the slide rails (402). The material box conveying mechanism (403) comprises a bottom plate (4031), and the bottom of the bottom plate (4031) is slidably connected to the slide rails (402). An auxiliary material unloading translation mechanism (4032) is horizontally arranged on the top of the bottom plate (4031), and the translation direction of the auxiliary material unloading translation mechanism (4032) is aligned with the direction of the slide rails (4031). 2) It is vertically arranged, an auxiliary unloading lifting mechanism (4033) is vertically arranged on the top of the movable platform of the auxiliary unloading translation mechanism (4032), an auxiliary unloading conveying mechanism (4034) is arranged on the top of the auxiliary unloading lifting mechanism (4033), and the auxiliary unloading conveying mechanism (4034) is arranged in parallel with the slide rail (402), and an auxiliary unloading trough (4018) is enclosed between one end of the unloading rack (4015) away from the unloading conveyor belt (303) and the adjacent limiting rod (4016).

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