Replating method and device for battery piece positive film after redness

Abstract

The invention discloses a replating method and device after a battery piece positive film turns red, and relates to the technical field of solar battery production, the replating device comprises a rack and further comprises a conveying table, the conveying table is located at the feeding position of the rack, a lifting supporting plate is installed between the conveying table and the rack, and transmission toothed belts in transmission fit with the conveying table are installed on the two sides of the lifting supporting plate correspondingly; and the transfer basket is installed above the lifting supporting plate in a sliding mode, a butt joint mechanism is installed on the back face of the transfer basket, a turnover shaft matched with the butt joint mechanism is installed in the machine frame, and anti-disengaging traction frames matched with the butt joint mechanism and the transmission toothed belt are symmetrically installed in the transfer basket. By designing the integrated rack, the conveying table, the lifting supporting plate and the transmission toothed belt for automatic transmission, the red battery piece can be efficiently and continuously transferred and turned over, the requirement for manual intervention is remarkably reduced, and manual piece insertion is not needed.

Description

Technical Field

[0001] The invention relates to the technical field of solar cell production, and in particular to a method and device for re-plating a positive film of a solar cell after it turns red. Background Art

[0002] With the development of the photovoltaic industry, the industry's requirements for silicon wafer quality are constantly increasing. At present, silicon wafers need to go through multiple process flows during production. When the flower baskets flow between different processes, the orientation of the silicon wafers taken out and placed in the flower baskets by the automated equipment is not consistent. Therefore, the orientation of the flower baskets containing silicon wafers needs to be changed to adapt to the requirements of different processes for the orientation of silicon wafers.

[0003] The patent publication number of the existing patent application is: CN108649010A, and the publication date is October 12, 2018. The name of the patent is "Turning mechanism of silicon wafer flower basket". The patent includes a bracket, a tray and a turning cylinder hinged to the bracket. The bracket at least includes a first beam and a second beam arranged horizontally relative to each other up and down, and a support rod vertically arranged between the first beam and the second beam. The first beam and the second beam are respectively provided with a first mounting plate at both ends, and the top surface of the first beam is provided with a second mounting plate. The bottom end of the tray is hinged to the second mounting plate, and a mounting rod protrudes from one side of the second beam. One end of the cylinder barrel of the turning cylinder is hinged to the mounting rod, and the piston rod of the turning cylinder is hinged to the tray. The tray includes a baffle and a first fixing clip and a second fixing clip respectively arranged at both ends of the baffle, and the first fixing clip is hinged to the second mounting plate. The turning mechanism of the silicon wafer flower basket has a simple structure, and the silicon wafer flower basket is firmly fixed to avoid undesirable situations such as the silicon wafer flower basket falling off during the turning process.

[0004] The above application has shortcomings. During the solar cell production process, after the tubular PECVD deposition of silicon nitride process, a small number of silicon wafers will have red film color. A re-plating process is required to solve the reddening phenomenon of a small number of silicon wafers after coating so that they can reach a normal film color. Generally, the red film silicon wafers are taken out from the basket by manual tweezers, the direction of the silicon wafers is turned again, the silicon wafers are inserted into the basket by hand, and then re-entered from the basket feed channel and loaded into the graphite boat for re-plating process. Alternatively, an AGV smart car can be used in conjunction with a robotic arm to complete the loading, unloading and transportation of the red silicon wafers, but this will obviously lead to excessive investment costs for the production line. If the number of red wafers is too large, no re-plating process will be performed and rework will be required. This process is undoubtedly the most costly and least efficient option. Summary of the invention

[0005] The purpose of the present invention is to provide a method and device for re-plating the positive film of a battery cell after it turns red, so as to solve the shortcomings of the above-mentioned prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A device for re-plating a positive film of a battery cell after it turns red comprises a frame and a conveyor platform, which is located at the feeding position of the frame, a lifting support plate is installed between the conveyor platform and the frame, transmission toothed belts cooperating with the transmission of the conveyor platform are installed on both sides of the lifting support plate, a transfer flower basket is slidably installed above the lifting support plate, a docking mechanism is installed on the back of the transfer flower basket, a turning shaft cooperating with the docking mechanism is installed in the frame, and anti-slip traction frames cooperating with the docking mechanism and the transmission toothed belt are symmetrically installed in the transfer flower basket. When the lifting support plate lifts the transfer flower basket to a corresponding height, the anti-slip traction frame is engaged with the transmission toothed belt to drive the transfer flower basket to move to the turning station, and when the docking mechanism and the turning shaft are engaged with each other, the anti-slip traction frame is moved away from above the transmission toothed belt and blocked at the opening of the transfer flower basket.

[0008] Preferably, a conveyor belt is installed on the table top of the conveyor platform, the unloading end of the conveyor belt is located inside the transfer flower basket, and a first transmission gear and a second transmission gear meshing therewith are installed at one end of the conveyor platform, the first transmission gear is connected to the conveyor belt roller shaft, and the second transmission gear is meshed with the transmission toothed belt.

[0009] Preferably, the transfer flower basket includes a backboard and pads fixed to the top and bottom of the backboard, a plurality of columns are installed between the two pads, and a plurality of protrusions are fixedly connected to one side of the columns.

[0010] Preferably, an electric push rod is installed between the bottom of the lifting support plate and the frame, and guide rails for inserting pads are symmetrically installed on both sides of the top of the lifting support plate.

[0011] Preferably, the docking mechanism comprises a connecting frame fixed to the back plate, and one side of the connecting frame is fixedly connected to a plug-in slot for inserting the flip shaft.

[0012] Preferably, the anti-slip traction frame is elastically and slidably connected to one side of the pad, the interior of the connecting frame is hollow, a compression air bag connected to the interior of the connecting frame is embedded in the plug-in groove, piston rods are plugged into the openings at both ends of the connecting frame, one end of the piston rod is fixedly connected to the plug-in rod, and one end of the anti-slip traction frame is provided with a guide inclined groove matching the plug-in rod.

[0013] Preferably, an abutment rod is fixedly connected to the outside of the anti-slip traction frame, and cross bars are symmetrically installed between the conveyor platform and the discharge port of the frame. When the lifting pallet drives the transfer flower basket to reach a corresponding height, the abutment rod respectively abuts against the transmission toothed belt and the cross bar.

[0014] Preferably, an anti-slipping bar is vertically installed between the two anti-slipping traction frames distributed up and down, and the anti-slipping bar is located at the opening of the transport flower basket.

[0015] Preferably, a connecting rod is symmetrically hinged on the flip axis, an insertion rod is symmetrically hinged on one side of the connecting rod, the insertion rod and the connecting rod are parallel to each other, and a docking sleeve matching the insertion rod is fixedly connected to the back plate.

[0016] The method of using the above-mentioned device for re-plating the positive film of a cell after it turns red comprises the following steps:

[0017] S1. The positive film red silicon wafers to be processed are identified and separated into the NG channel in the rack by the automatic detection device, and then transferred to the designated transfer basket through the conveyor platform;

[0018] S2. The lifting plate gradually lifts up the transfer basket under the command of the control system, so that the transported defective silicon wafers are inserted into the transfer basket one by one;

[0019] S3, when the lifting tray drives the transfer flower basket to reach the corresponding height, the transmission toothed belt is driven to run through the conveying platform, and the anti-dropping traction frame is pushed by the transmission toothed belt to move the transfer flower basket toward the flipping station until the docking mechanism on the back thereof is engaged with the flipping shaft;

[0020] S4, performing a flipping operation, rotating the transfer basket and the silicon wafers therein vertically by 180 degrees, so that the front and back sides of the silicon wafers are restored to the state before the process, and at the same time, the bottom and top positions of the transfer basket are interchanged;

[0021] S5. Finally, the transfer basket is moved from the rack into the re-plating equipment. The robot automatically locates and grabs the silicon wafers in the transfer basket and loads them into the graphite boat for re-plating.

[0022] In the above technical scheme, by designing an integrated frame, conveyor table, lifting pallet and automatic transmission toothed belt, the transfer and flipping of the red-coated solar cells can be completed efficiently and continuously, significantly reducing the need for manual intervention. After the silicon wafers are coated and turned red, they can be directly transported through this device for re-plating process. There is no need to insert the wafers manually. The direction of the flower basket can be directly rotated, and then the flower basket can be put into the machine. There is no need to clean the film layer and rework it from the texturing process, thereby improving the automation level and operation efficiency of the overall production line. At the same time, the anti-slip traction frame can cooperate with the transmission toothed belt to push the transfer flower basket to the flipping station using the transmission toothed belt, and can also cover the opening of the transfer flower basket during the flipping process to prevent the inserted silicon wafers from shaking and falling during the flipping process.

[0023] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0024] This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0026] Figure 1 It is a schematic diagram of the overall structure of a device for re-plating a positive film of a battery cell after it turns red according to the present invention;

[0027] Figure 2 It is a schematic diagram of the connection between the lifting support plate and the transfer basket in a device for re-plating the positive film of a battery cell after reddening according to the present invention;

[0028] Figure 3 It is a structural schematic diagram of a transfer basket in a device for re-plating a positive film of a battery cell after it turns red in the present invention;

[0029] Figure 4 It is a structural schematic diagram of a lifting support plate in a device for re-plating a positive film of a battery cell after it turns red according to the present invention;

[0030] Figure 5 It is a schematic diagram of the connection between the docking mechanism and the anti-slipping traction frame in a device for re-plating the positive film of a battery cell after reddening according to the present invention;

[0031] Figure 6 This is an enlarged view of the structure at position A of a device for re-plating a positive film of a battery cell after it turns red in the present invention;

[0032] Figure 7 It is a structural schematic diagram of a docking mechanism in a device for re-plating a positive film of a battery cell after it turns red in the present invention;

[0033] Figure 8 It is a schematic diagram of the overall structure of an anti-stripping traction frame in a device for re-plating a positive film of a battery cell after it turns red in the present invention;

[0034] Fig. 9 It is a schematic diagram of the overall structure of the flip axis in a device for re-plating the positive film of a battery cell after it turns red.

[0035] Description of reference numerals:

[0036] 1. Frame; 101. Crossbar; 2. Conveyor platform; 201. Conveyor belt; 202. First transmission gear; 203. Second transmission gear; 3. Lifting support plate; 301. Transmission toothed belt; 302. Electric push rod; 303. Guide rail; 4. Transfer flower basket; 401. Backing plate; 402. Pad; 403. Column; 404. Protrusion; 405. Docking sleeve; 5. Docking mechanism; 501. Connecting frame; 502. Plug-in slot; 504. Compressed air bag; 505. Piston rod; 506. Plug-in rod; 6. Flip shaft; 601. Servo motor; 602. Connecting rod; 603. Plug-in rod; 604. Docking slot; 605. Connecting rod; 606. Connecting spring; 7. Anti-slip traction frame; 701. Guide inclined slot; 702. Abutment rod; 703. Anti-slip stop rod; 704. Top spring. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0038] See also Figure 1-9 , a device for post-reddening positive film of a battery cell provided by an embodiment of the present invention comprises a frame 1, and also comprises a conveying platform 2, which is located at the feeding place of the frame 1, a lifting support plate 3 is installed between the conveying platform 2 and the frame 1, and transmission toothed belts 301 which are matched with the transmission of the conveying platform 2 are installed on both sides of the lifting support plate 3, a transfer basket 4 is slidably installed above the lifting support plate 3, a docking mechanism 5 is installed on the back of the transfer basket 4, a turning shaft 6 which is matched with the docking mechanism 5 is installed in the frame 1, and an anti-slipping traction frame 7 which is matched with the docking mechanism 5 and the transmission toothed belt 301 is symmetrically installed in the transfer basket 4. When the lifting support plate 3 lifts the transfer basket 4 to a corresponding height, the anti-slipping traction frame 7 is engaged with the transmission toothed belt 301 to drive the transfer basket 4 to move to the turning station, and when the docking mechanism 5 and the turning shaft 6 are engaged with each other, the anti-slipping traction frame 7 is moved away from above the transmission toothed belt and blocked at the opening of the transfer basket 4.

[0039] Specifically, the conveyor table 2 in the rack 1 is the NG channel on the assembly line. The conveyor table 2 is located at the feed end of the rack 1 and is used to receive the coated red silicon wafers transmitted from the upstream process. The silicon wafers with red film color are detected by the camera in the upstream process and are automatically moved to the NG channel and transmitted to the designated transfer basket 4 through the conveyor table 2. During the silicon wafer transmission process, the lifting support plate 3 rises and gradually lifts the transfer basket 4 to a certain height, so that the vacant insert position on the transfer basket 4 is aligned with the conveyor table 2. When the transfer basket 4 is full of silicon wafers, the height of the lifting support plate 3 is changed accordingly. The anti-slip traction frame 7 on the transfer basket 4 will resist the transmission toothed belt 301, and the transmission toothed belt 301 will also be driven by the conveyor table 2 and start to run, and then the anti-slip traction frame 7 is pushed by the transmission toothed belt 301 to make the transfer basket 4 move toward the direction of the flip shaft 6. When the transfer basket 4 reaches the flipping station, the docking mechanism 5 on the back thereof is engaged with the flip shaft 6, and the lifting support plate 3 is lifted. The support plate 3 descends alone, so that the transfer basket is in a suspended state, and then the flip shaft 6 is started to drive the transfer basket 4 to flip vertically 180 degrees, so that the bottom and top of the basket are swapped, and the front and back directions of the silicon wafers are also swapped. Before flipping, the anti-slip traction frame 7 is moved away from the top of the transmission toothed belt 301 to ensure smooth flipping, and the anti-position is adjusted in advance to block the opening of the transfer basket 4 to prevent the silicon wafers from falling out. After the flipping is completed, the transfer basket 4 enters the re-plating machine from the feeding basket channel, and the manipulator takes out the silicon wafers from the transfer basket 4 and loads them into the graphite boat in a certain order. The graphite boat enters the re-plating process area for coating repair, so that the red silicon wafer film color returns to normal, reducing the rework cost, reducing the production capacity loss, and reducing the factors affecting the yield and efficiency. The red silicon wafer coating can be directly re-plated in this process without manual insertion. The direction of the basket can be directly rotated, and then the basket can be put into the machine, and there is no need to clean the film layer and rework from the texturing.

[0040] Compared with the prior art, the embodiment of the present invention can efficiently and continuously complete the transportation and flipping of the red-coated solar cells by setting an integrated frame 1, a conveyor table 2, a lifting pallet 3 and an automatically driven transmission toothed belt 301, which significantly reduces the need for manual intervention. After the silicon wafer is coated and turned red, it can be directly transported through the device for a re-plating process. There is no need to insert the wafer manually, and the direction of the flower basket can be directly rotated, and then the flower basket can be put into the machine. There is no need to clean the film layer and then rework it from the texturing process, thereby improving the automation level and operation efficiency of the entire production line. At the same time, the anti-slip traction frame 7 can cooperate with the transmission toothed belt 301 to use the transmission toothed belt 301 to push the transfer flower basket 4 to the flipping station, and can also cover the opening of the transfer flower basket 4 during the flipping process to prevent the inserted silicon wafer from shaking and falling during the flipping process.

[0041] In a further embodiment of the present invention, a conveyor belt 201 is installed on the table of the conveyor platform 2, and the discharge end of the conveyor belt 201 is located inside the transfer basket 4, and a first transmission gear 202 and a second transmission gear 203 meshing therewith are symmetrically installed at one end of the conveyor platform 2, the first transmission gear 202 and the roller shaft of the conveyor belt 201 are connected by belt transmission, and the second transmission gear 203 is meshed with the transmission toothed belt 301. Specifically, the conveyor platform 2 is installed at the feed of the frame 1 and has a horizontal table top, on which a conveyor belt 201 is installed, and the conveyor belt 201 is arranged along the length direction of the table top, and its discharge end penetrates into the interior of the transfer basket 4 The conveyor belt 201 is provided with a plurality of teeth, and the plurality of teeth are provided with a plurality of teeth. The plurality of teeth are provided with a plurality of teeth, and the plurality of teeth are provided with a plurality of teeth. The plurality of teeth are provided with a plurality of teeth, and the plurality of teeth are provided with a plurality of teeth. The plurality of teeth are provided with a plurality of teeth, and the plurality of teeth are provided with a plurality of teeth. The plurality of teeth are provided with a plurality of teeth, and the plurality of teeth are provided with a plurality of teeth.

[0042] In a further embodiment of the present invention, the transfer flower basket 4 includes a back plate 401 and a pad 402 fixed to the top and bottom of the back plate 401, a plurality of columns 403 are installed between the two pads 402, and a plurality of protrusions 404 are fixedly connected to one side of the column 403. Specifically, the plurality of columns 403 form a skeleton structure of the transfer flower basket 4, so that the structure of the transfer flower basket 4 is more stable, and the silicon wafer insertion area is between the upper and lower adjacent protrusions 404. After the silicon wafer is inserted, it can only be removed from the opening of the transfer flower basket 4. If the opening of the transfer flower basket 4 is blocked by the anti-dropping traction frame 7, the silicon wafer cannot be taken out, thereby ensuring the stability of the silicon wafer insertion and preventing the silicon wafer from accidentally falling off.

[0043] In a further embodiment of the present invention, an electric push rod 302 is installed between the bottom of the lifting pallet 3 and the frame 1, and guide rails 303 for plugging in the pad 402 are symmetrically installed on both sides of the top of the lifting pallet 3. Specifically, the electric push rod 302 is installed between the bottom of the lifting pallet 3 and the frame 1 as a power source for the lifting pallet 3. One end of the electric push rod 302 is fixedly connected to the base of the frame 1, and the other end is connected to the bottom of the lifting pallet 3. By controlling the telescopic movement of the electric push rod 302, precise control of the vertical direction of the lifting pallet 3 is achieved, thereby achieving smooth lifting and lowering of the transfer flower basket 4. The guide rail 303 matches the size of the pad 402 of the transfer flower basket 4, and stable plug-in cooperation is achieved during the lifting process, ensuring the synchronization of the lifting and lowering of the transfer flower basket 4 and the lifting pallet 3. At the same time, the guide rail 303 can also make the transfer flower basket 4 more stable when being pushed, thereby preventing the anti-detachment traction frame 7 and the transmission toothed belt 301 on the transfer flower basket 4 from detaching.

[0044] In a further embodiment of the present invention, the docking mechanism 5 includes a connecting frame 501 fixed to the back plate 401, a plug-in slot 502 for inserting the flip shaft 6 is fixedly connected to one side of the connecting frame 501, a docking slot 604 is provided on the flip shaft 6, a servo motor 601 connected to the end of the flip shaft 6 is installed on the frame 1, a positioning column is elastically inserted in the plug-in slot 502, and a socket matching the positioning column is provided on the docking slot 604. Specifically, the docking slot 604 on the flip shaft 6 cooperates with the plug-in slot 502 to ensure that the flip shaft 6 cannot rotate alone after being inserted into the plug-in slot 502 of the connecting frame 501, and must drive the entire transfer flower basket 4 to flip. After the two are completely plugged together, the rotation direction and speed of the servo motor 6 are controlled to achieve precise control of the flip shaft 6, thereby driving the transfer flower basket 4 to perform a flip operation.

[0045] In a further embodiment of the present invention, the anti-slip traction frame 7 is elastically slidably connected to one side of the pad 402, a pair of sliders are fixedly connected to the anti-slip traction frame 7, a slide groove matching the slider is provided on the pad 402, a top spring 704 that resists the slider is installed in the slide groove, the connecting frame 501 is hollow inside, a compression air bag 504 connected to the connecting frame 501 is embedded in the plug-in groove 502, piston rods 505 are plugged into the openings at both ends of the connecting frame 501, one end of the piston rod 505 is fixedly connected to the plug-in rod 506, and a guide inclined groove 701 matching the plug-in rod 506 is provided at one end of the anti-slip traction frame 7. Specifically, after the flip shaft 6 is inserted into the plug-in groove 502, the flower basket 4 is transported. With further movement, the flip shaft 6 gradually squeezes the compressed air bag 504, allowing the gas in the compressed air bag 504 to enter the connecting frame 501, and then uses the air pressure to push the piston rod 505 outward, and the plug-in rod 506 on the piston rod 505 moves in the guide inclined groove 701 to drive the anti-slip traction frame 7 to move toward the center of the transfer basket 4. The change in the position of the anti-slip traction frame 7 is used to prevent the silicon wafers from falling from the transfer basket 4. When the flip shaft 6 is removed from the plug-in groove 502 on the connecting frame 501, the anti-slip traction frame 7 will move toward the outside of the transfer basket 4 under the action of the top spring 704, so as to facilitate the complete opening of the silicon wafer entrance before the transfer basket 4 takes on the defective silicon wafers again.

[0046] In a further embodiment of the present invention, an abutment rod 702 is fixedly connected to the outer side of the anti-slip traction frame 7, and a cross bar 101 is symmetrically installed between the conveying platform 2 and the discharge port of the frame 1. When the lifting support plate 3 drives the transfer flower basket 4 to reach the corresponding height, the abutment rod 702 respectively abuts against the transmission toothed belt 301 and the cross bar 101. Specifically, after the lifting support plate 3 moves up and the transfer flower basket 4 is filled with silicon wafers, the top of the abutment rod 702 on the anti-slip traction frame 7 of the lower pad 402 contacts the cross bar 101, and the bottom is stuck with the transmission toothed belt 301. When the transmission toothed belt 301 pushes the abutment rod 702 forward, since the top of the abutment rod 702 is restricted by the cross bar 101, the abutment rod 702 will not be separated from the transmission toothed belt 301, thereby ensuring the stability of the push. As long as the flip shaft 6 does not squeeze the compressed air bag 504 in the plug-in slot 502, the abutment rod 702 is always blocked by the cross bar 101, thereby ensuring the stability of the transfer flower basket 4 before flipping.

[0047] In a further embodiment of the present invention, an anti-detachment bar 703 is vertically installed between two anti-detachment traction frames 7 distributed up and down, and the anti-detachment bar 703 is located at the opening of the transfer flower basket 4. Specifically, the anti-detachment traction frames 7 on the two pads 402 are connected by the anti-detachment bar 703. When the transfer flower basket 4 receives the silicon wafers on the conveying table 2, the anti-detachment bar 703 is located on the outside of the silicon wafer entrance. When the flip shaft 6 enters the plug-in slot 502 to prepare for flipping, as the anti-detachment traction frame 7 moves inward, the anti-detachment bar 703 is also moved to the silicon wafer entrance of the transfer flower basket 4, ensuring that the silicon wafers can also be stably flipped when the transfer flower basket 4 is flipped.

[0048] In a further embodiment of the present invention, a connecting rod 602 is symmetrically hinged on the flip shaft 6, and a plug rod 603 is symmetrically hinged on one side of the connecting rod 602. The plug rod 603 is parallel to the connecting rod 602. The connecting rod 602 and the plug rod 603 are hinged by a pair of connecting rods 605 of equal length. A connecting spring 606 is installed between the two plug rods 603. A docking sleeve 405 matching the plug rod 603 is fixedly connected to the back plate 401. Specifically, the position of the plug rod 603 corresponds to the back plate 401. When the flip shaft 6 enters the plug-in slot 502, the plug rod 603 will first press against the back plate 401. As the back plate 401 squeezes the connecting rod 602, the upper and lower connecting rods 602 will move away from each other under the pressure, so that each connecting rod 602 is inserted into the corresponding docking sleeve 405 before preparing for flipping, further ensuring the reliability of the connection and fixation between the flip shaft 6 and the transfer flower basket 4 during the flipping process. When the plug rod 603 is not pressed, the upper and lower plug rods 603 move closer to each other under the action of the connecting spring 606.

[0049] The method of using the above-mentioned device for re-plating the positive film of a cell after it turns red comprises the following steps:

[0050] S1, the positive film red silicon wafers to be processed are identified and separated into the NG channel in the rack 1 by the automatic detection device, and then transferred to the designated transfer basket 4 through the conveyor platform 2;

[0051] S2, the lifting plate 3 gradually lifts the transfer basket 4 under the command of the control system, so that the transported defective silicon wafers are inserted into the transfer basket 4 one by one;

[0052] S3, when the lifting support plate 3 drives the transfer flower basket 4 to reach the corresponding height, the transmission toothed belt 301 is driven to run through the conveying platform 2, and the anti-dropping traction frame 7 is pushed by the transmission toothed belt 301 to move the transfer flower basket 4 toward the flipping station until the docking mechanism 5 on the back thereof is engaged with the flip shaft 6;

[0053] S4, performing a flipping operation, rotating the transport basket 4 and the silicon wafers therein vertically by 180 degrees, so that the front and back sides of the silicon wafers are restored to the state before the process, and at the same time, the bottom and top positions of the transport basket 4 are interchanged;

[0054] S5. Finally, the transfer basket 4 is allowed to enter the interior of the re-plating equipment from the rack 1. The manipulator automatically locates and grabs the silicon wafers in the transfer basket 4 and loads them into the graphite boat for re-plating.

[0055] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A device for re-plating a positive film of a cell after it turns red, comprising a frame (1), characterized in that: Also includes: A conveying platform (2) is located at the feeding position of the frame (1), a lifting support plate (3) is installed between the conveying platform (2) and the frame (1), and transmission toothed belts (301) that cooperate with the conveying platform (2) are installed on both sides of the lifting support plate (3); A transfer flower basket (4) is slidably mounted above the lifting support plate (3); a docking mechanism (5) is mounted on the back of the transfer flower basket (4); a turning shaft (6) matched with the docking mechanism (5) is mounted in the frame (1); and an anti-dropping traction frame (7) matched with the docking mechanism (5) and the transmission toothed belt (301) is symmetrically mounted in the transfer flower basket (4); When the lifting support plate (3) lifts the transfer flower basket (4) to a corresponding height, the anti-slip traction frame (7) is engaged with the transmission toothed belt (301) to drive the transfer flower basket (4) to move to the flipping station. When the docking mechanism (5) and the flipping shaft (6) are engaged with each other, the anti-slip traction frame (7) is moved away from above the transmission toothed belt (301) and blocks the opening of the transfer flower basket (4).

2. A device for re-plating a positive film of a cell after it turns red according to claim 1, characterized in that: A conveyor belt (201) is installed on the table top of the conveyor platform (2), the discharge end of the conveyor belt (201) is located inside the transfer flower basket (4), and a first transmission gear (202) and a second transmission gear (203) meshing therewith are installed at one end of the conveyor platform (2), the first transmission gear (202) and the conveyor belt (201) are connected by roller transmission, and the second transmission gear (203) is meshed with a transmission toothed belt (301).

3. A device for re-plating a positive film of a cell after it turns red according to claim 1, characterized in that: The transfer flower basket (4) comprises a back plate (401) and pads (402) fixed to the top and bottom of the back plate (401), a plurality of columns (403) are installed between the two pads (402), and a plurality of protrusions (404) are fixedly connected to one side of the columns (403).

4. A device for re-plating a positive film of a cell after it turns red according to claim 1, characterized in that: An electric push rod (302) is installed between the bottom of the lifting support plate (3) and the frame (1), and guide rails (303) for inserting the pad (402) are symmetrically installed on both sides of the top of the lifting support plate (3).

5. The device for re-plating the positive film of a cell after it turns red according to claim 1, characterized in that: The docking mechanism (5) comprises a connecting frame (501) fixed to the back plate (401), and one side of the connecting frame (501) is fixedly connected with a plug-in slot (502) for inserting the flip shaft (6).

6. A device for re-plating a positive film of a cell after it turns red according to claim 5, characterized in that: The anti-slip traction frame (7) is elastically slidably connected to one side of the pad (402); the interior of the connecting frame (501) is hollow; a compression air bag (504) connected to the connecting frame (501) is embedded in the plug-in slot (502); piston rods (505) are plugged into the openings at both ends of the connecting frame (501); one end of the piston rod (505) is fixedly connected to a plug-in rod (506); and one end of the anti-slip traction frame (7) is provided with a guide inclined slot (701) matching the plug-in rod (506).

7. A device for re-plating a positive film of a cell after it turns red according to claim 6, characterized in that: An abutment rod (702) is fixedly connected to the outside of the anti-slip traction frame (7), and a cross bar (101) is symmetrically installed between the conveying platform (2) and the discharge port of the frame (1). When the lifting support plate (3) drives the transfer flower basket (4) to reach a corresponding height, the abutment rod (702) respectively abuts against the transmission toothed belt (301) and the cross bar (101).

8. The device for re-plating the positive film of a cell after it turns red according to claim 1, characterized in that: An anti-slipping blocking rod (703) is vertically installed between the two anti-slipping traction frames (7) distributed up and down, and the anti-slipping blocking rod (703) is located at the opening of the transport flower basket (4).

9. The device for re-plating the positive film of a cell after it turns red according to claim 3, characterized in that: A connecting rod (602) is symmetrically hinged on the flip shaft (6), an insertion rod (603) is symmetrically hinged on one side of the connecting rod (602), the insertion rod (603) and the connecting rod (602) are parallel to each other, and a docking sleeve (405) matching the insertion rod (603) is fixedly connected to the back plate (401).

10. A method for using the device for re-plating a positive film of a cell after it turns red as claimed in any one of claims 1 to 9, characterized in that: The steps include: S1, the positive film red silicon wafers to be processed are identified and separated into the NG channel in the rack (1) through the automatic detection device, and then transferred to the designated transfer basket (4) through the conveyor platform (2); S2, the lifting plate (3) gradually lifts the transfer basket (4) under the command of the control system, so that each defective silicon wafer being transported is inserted into the transfer basket (4) in turn; S3, when the lifting support plate (3) drives the transfer flower basket (4) to reach a corresponding height, the transmission platform (2) drives the transmission toothed belt (301) to run, and the transmission toothed belt (301) pushes the anti-dropping traction frame (7) to move the transfer flower basket (4) toward the flipping station until the docking mechanism (5) on the back thereof is engaged with the flipping shaft (6); S4, performing a flipping operation, rotating the transfer basket (4) and the silicon wafers therein vertically by 180 degrees, so that the front and back sides of the silicon wafers are restored to the state before the process, and at the same time, the bottom and top positions of the transfer basket (4) are interchanged; S5. Finally, the transfer basket (4) is allowed to enter the interior of the re-plating device from the rack (1). The robot automatically locates and grabs the silicon wafers in the transfer basket (4) and loads them into the graphite boat for re-plating.

Images