A method and device for post-plating when the front film of a battery cell turns red

Abstract

The present invention discloses a method and device for post-plating of battery wafers when they turn red, which relates to the technical field of solar cell production. It includes a frame, and also includes a conveying table located at the feeding position of the frame. A lifting support plate is installed between the conveying table and the frame. Transmission toothed belts that are in transmission cooperation with the conveying table are installed on both sides of the lifting support plate. A transfer basket is slidably installed above the lifting support plate. A docking mechanism is installed on the back of the transfer basket. A turning shaft that cooperates with the docking mechanism is installed in the frame. Anti-disengagement traction frames that respectively cooperate with the docking mechanism and the transmission toothed belts are symmetrically installed in the transfer basket. By designing an integrated frame, conveying table, lifting support plate and an automatically driven transmission toothed belt, the present invention can efficiently and continuously complete the transfer and flipping of the red battery wafers, significantly reducing the need for manual intervention and eliminating the need for manual insertion of wafers.

Description

Technical Field

[0001] The present invention relates to the technical field of solar cell production, and specifically provides a method and device for post-plating when the front film of a battery chip turns red. Background Art

[0002] With the development of the photovoltaic industry, the industry's requirements for the quality of silicon wafers are constantly increasing. Currently, during the production process of silicon wafers, multiple technological processes are required. When the carrier is transferred between different processes, the orientation of the silicon wafers taken and placed from the carrier by the automated equipment is not consistent. Therefore, it is necessary to change the orientation of the carrier with silicon wafers placed therein to meet 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 this patent is "Flipping mechanism for silicon wafer carrier". This patent includes a bracket, as well as a tray and a flipping cylinder hinged to the bracket. The bracket at least includes a first cross beam and a second cross beam horizontally arranged opposite to each other up and down, and a support rod vertically arranged between the first cross beam and the second cross beam. First mounting plates are respectively provided at both ends of the first cross beam and the second cross beam. A second mounting plate is provided on the top surface of the first cross beam. The bottom end of the tray is hinged to the second mounting plate. An installation rod protrudes from one side of the second cross beam. One end of the cylinder barrel of the flipping cylinder is hinged to the installation rod, and the piston rod of the flipping cylinder is hinged to the tray. The tray includes a baffle plate and a first fixed clamp and a second fixed clamp respectively provided at both ends of the baffle plate. The first fixed clamp is hinged to the second mounting plate. The flipping mechanism for the silicon wafer carrier has a simple structure, and the silicon wafer carrier is firmly fixed, avoiding adverse situations such as the silicon wafer carrier falling off during the flipping process.

[0004] The above application has deficiencies. After the process of depositing silicon nitride by tube PECVD in the solar cell production process, there will be a small number of silicon wafers with a red film color. It is necessary to perform a post-plating process to solve the phenomenon of the red film color after coating of a small number of silicon wafers and make it reach the normal film color. Generally, the silicon wafers with a red film color are taken out of the carrier by hand with tweezers, the direction of the silicon wafers is reversed, the silicon wafers are inserted by hand into the carrier, and then they enter from the feed channel of the carrier again and are loaded into the graphite boat for the post-plating process. Or it is also possible to use an AGV intelligent vehicle in cooperation with a robotic arm to complete the loading, unloading, and transportation of the red silicon wafers. However, this will obviously lead to too high an input cost for the production line. And if the number of red wafers is too large and the post-plating process is not carried out and rework is done, this process is undoubtedly the most costly and least efficient choice. Summary of the Invention

[0005] The purpose of the present invention is to provide a method and device for post-plating when the front film of a battery chip turns red, so as to solve the deficiencies in the above-mentioned prior art.

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

[0007] A device for post-plating when the front film of a battery cell turns red, including a frame, further including a conveying table located at the feeding position of the frame. An elevating support plate is installed between the conveying table and the frame. Transmission toothed belts in transmission cooperation with the conveying table are installed on both sides of the elevating support plate. A transfer basket is slidably installed above the elevating support plate. A docking mechanism is installed on the back of the transfer basket. A turning shaft matched with the docking mechanism is installed in the frame. Anti-disengagement traction frames respectively in cooperation with the docking mechanism and the transmission toothed belts are symmetrically installed in the transfer basket. When the elevating support plate lifts the transfer basket to a corresponding height, the anti-disengagement traction frames are in clamping cooperation with the transmission toothed belts, driving the transfer basket to move to the turning station. When the docking mechanism and the turning shaft are mutually clamped, the anti-disengagement traction frames move away from above the transmission toothed belts and block at the opening of the transfer basket.

[0008] Preferably, a conveyor belt is installed on the tabletop of the conveying table. The discharging end of the conveyor belt is inside the transfer basket. A first transmission gear and a second transmission gear meshing with it are installed at one end of the conveying table. The first transmission gear is in transmission connection with the conveyor belt roller shaft, and the second transmission gear meshes with the transmission toothed belt.

[0009] Preferably, the transfer basket includes a back plate and cushion plates fixed to the top and bottom of the back plate. A number of upright columns are installed between the two cushion plates. A plurality of protrusions are fixedly connected to one side of the upright columns.

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

[0011] Preferably, the docking mechanism includes a connecting frame fixed to the back plate. A plugging groove for inserting the turning shaft is fixedly connected to one side of the connecting frame.

[0012] Preferably, the anti-disengagement traction frame is elastically slidably connected to one side of the cushion plate. The inside of the connecting frame is hollow. A compression air bag communicating with the inside of the connecting frame is embedded in the plugging groove. Plugging rods are inserted at both open ends of the connecting frame. One end of the plugging rod is fixedly connected with a plugging bar. A guiding inclined groove matching the plugging bar is opened at one end of the anti-disengagement traction frame.

[0013] Preferably, a butting rod is fixedly connected to the outside of the anti-disengagement traction frame. Cross bars are symmetrically installed between the discharging ports of the conveying table and the frame. When the elevating support plate drives the transfer basket to reach a corresponding height, the butting rods respectively abut against the transmission toothed belt and the cross bar.

[0014] Preferably, an anti-disengagement blocking rod is vertically installed between two vertically distributed anti-disengagement traction frames. The anti-disengagement blocking rod is located at the opening of the transfer basket.

[0015] Preferably, connecting rods are symmetrically hinged on the turning shaft. One side of each connecting rod is symmetrically hinged with a plug rod. The plug rods are parallel to the connecting rods. A docking sleeve matching the plug rods is fixedly connected to the back plate.

[0016] The method of using the above-mentioned device for post-plating a battery chip positive film after it turns red includes the following steps:

[0017] S1. The battery chip positive film red silicon wafers to be processed are identified and separated into the NG channel in the rack by an automatic detection device, and then transported to a designated transfer flower basket through a conveyor table.

[0018] S2. The lifting support plate gradually lifts the transfer flower basket under the command of the control system, so that the defective silicon wafers being transported are respectively inserted into the transfer flower basket in sequence.

[0019] S3. When the lifting support plate drives the transfer flower basket to reach the corresponding height, the conveyor table drives the transmission toothed belt to run, and the transmission toothed belt pushes the anti-disengagement traction frame to move the transfer flower basket towards the flipping station until the docking mechanism on its back is clamped with the turning shaft.

[0020] S4. Perform a flipping operation to vertically rotate the transfer flower basket and the silicon wafers inside it by 180 degrees, so that the front and back directions of the silicon wafers are restored to the state before the process, and at the same time, the positions of the bottom and top of the transfer flower basket are interchanged.

[0021] S5. Finally, let the transfer flower basket enter the post-plating equipment from the rack, and the silicon wafers in the transfer flower basket are automatically positioned and grabbed by a manipulator and loaded into a graphite boat for preparing post-plating.

[0022] In the above technical solution, by designing an integrated rack, conveyor table, lifting support plate and an automatically driven transmission toothed belt, the transfer and flipping work of the red battery chips can be completed efficiently and continuously, significantly reducing the need for manual intervention. After the silicon wafers turn red during coating, they can be directly post-plated after being transferred by this device. There is no need for manual insertion of wafers. Just rotate the direction of the flower basket and then put the flower basket into the machine. There is no need to clean the film layer and rework from texturing. Thus, the automation level and operation efficiency of the overall production line are improved. At the same time, the anti-disengagement traction frame can not only cooperate with the transmission toothed belt to push the transfer flower basket to the flipping station by using the transmission toothed belt, but also block the opening of the transfer flower basket during the flipping process to prevent the inserted silicon wafers from shaking and falling during the flipping.

[0023] It should be understood that the foregoing general description and the following detailed description are merely exemplary and explanatory and are not intended to limit the present disclosure.

[0024] This application document provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full 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 technical solutions in the embodiments of this application or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments recorded in this invention, and those of ordinary skill in the art can also obtain other drawings based on these drawings.

[0026] Figure 1 It is a schematic diagram of the overall structure of a device for post-plating a battery wafer when its front film turns red according to the present invention;

[0027] Figure 2 It is a schematic diagram of the connection between a lifting support plate and a transfer basket in a device for post-plating a battery wafer when its front film turns red according to the present invention;

[0028] Figure 3 It is a schematic diagram of the structure of a transfer basket in a device for post-plating a battery wafer when its front film turns red according to the present invention;

[0029] Figure 4 It is a schematic diagram of the structure of a lifting support plate in a device for post-plating a battery wafer when its front film turns red according to the present invention;

[0030] Figure 5 It is a schematic diagram of the connection between a docking mechanism and an anti-disengagement traction frame in a device for post-plating a battery wafer when its front film turns red according to the present invention;

[0031] Figure 6 It is an enlarged view of the structure at position A in a device for post-plating a battery wafer when its front film turns red according to the present invention;

[0032] Figure 7 It is a schematic diagram of the structure of a docking mechanism in a device for post-plating a battery wafer when its front film turns red according to the present invention;

[0033] Figure 8 It is a schematic diagram of the overall structure of an anti-disengagement traction frame in a device for post-plating a battery wafer when its front film turns red according to the present invention;

[0034] Figure 9 It is a schematic diagram of the overall structure of a turning shaft in a device for post-plating a battery wafer when its front film turns red according to the present invention.

[0035] Description of the reference numerals:

[0036] 1. Frame; 101. Cross bar; 2. Conveyor table; 201. Conveyor belt; 202. First drive gear; 203. Second drive gear; 3. Lifting support plate; 301. Drive belt; 302. Electric push rod; 303. Guide rail; 4. Transfer basket; 401. Back plate; 402. Base plate; 403. Column; 404. Protrusion; 405. Docking sleeve; 5. Docking mechanism; 501. Connecting frame; 502. Insertion slot; 504. Compression air bag; 505. Piston rod; 506. Insertion rod; 6. Rotating shaft; 601. Servo motor; 602. Connecting rod; 603. Insertion rod; 604. Docking slot; 605. Link; 606. Connecting spring; 7. Anti - detachment traction frame; 701. Guide inclined groove; 702. Contact rod; 703. Anti - detachment stop bar; 704. Top spring. Detailed implementation manners

[0037] To make the objectives, technical solutions, and advantages of the embodiments of the present disclosure clearer, the following will clearly and completely describe the technical solutions of the embodiments of the present disclosure with reference to the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all of them. Based on the described embodiments of the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present disclosure.

[0038] Please refer to Figures 1-9 , a post - plating device for battery cell front film turning red provided by an embodiment of the present invention includes a frame 1, and also includes a conveyor table 2 located at the feeding position of the frame 1. A lifting support plate 3 is installed between the conveyor table 2 and the frame 1. Drive belts 301 that are in transmission cooperation with the conveyor table 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 rotating shaft 6 that cooperates with the docking mechanism 5 is installed in the frame 1. Anti - detachment traction frames 7 that respectively cooperate with the docking mechanism 5 and the drive belt 301 are symmetrically installed in the transfer basket 4. When the lifting support plate 3 lifts the transfer basket 4 to a corresponding height, the anti - detachment traction frame 7 is engaged with the drive belt 301 to drive the transfer basket 4 to move to the flipping station. When the docking mechanism 5 and the rotating shaft 6 are engaged with each other, the anti - detachment traction frame 7 moves away from above the conveyor belt and blocks the opening of the transfer basket 4.

[0039] Specifically, the conveying table 2 in the rack 1 is the NG channel on the production line. The conveying table 2 is located at the feeding position 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 a camera in the upstream process and are automatically moved to the NG channel, and are transmitted through the conveying table 2 into the designated transfer basket 4. During the transmission of the silicon wafers, the lifting support plate 3 rises and gradually lifts the transfer basket 4 to a certain height, so that the empty wafer insertion positions on the transfer basket 4 are aligned with the conveying table 2. When the transfer basket 4 is full of silicon wafers, the height of the lifting support plate 3 also changes accordingly. The anti-drop traction frame 7 on the transfer basket 4 will resist the transmission belt 301, and the transmission belt 301 will also be driven by the conveying table 2 to start running. Then, the anti-drop traction frame 7 is pushed by the transmission belt 301 to make the transfer basket 4 move forward in the direction of the rotation axis 6. When the transfer basket 4 reaches the flipping station, the docking mechanism 5 on its back is engaged with the rotation axis 6, and the lifting support plate 3 descends alone, making the transfer basket in a suspended state. Then the rotation axis 6 starts, driving the transfer basket 4 to perform a 180-degree vertical flip, realizing the position exchange between the bottom and the top of the basket, and at the same time, the front and back directions of the silicon wafers are also swapped. Before flipping, the anti-drop traction frame 7 moves away from above the transmission belt 301 to ensure the smoothness of flipping, and the position is adjusted in advance to block the opening of the transfer basket 4 to prevent the silicon wafers from falling out. After flipping, the transfer basket 4 enters the re-coating machine from the feeding basket channel. 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-coating process area for film coating repair, so that the film color of the red silicon wafers returns to normal, reducing the rework cost, reducing the production capacity loss, and reducing the factors affecting the yield and efficiency. The silicon wafers with red film coating can directly carry out the re-coating process in this process, without manual wafer insertion. Just rotate the direction of the basket and then put the basket into the machine, and there is no need to clean the film layer and rework from the texturing process.

[0040] Compared with the prior art, the embodiment of the present invention can efficiently and continuously complete the transfer and flipping work of the red battery wafers by setting the integrated rack 1, conveying table 2, lifting support plate 3 and the automatically driven transmission belt 301, significantly reducing the need for manual intervention. After the silicon wafers have red film coating, they can directly carry out the re-coating process after being transferred by this device, without manual wafer insertion. Just rotate the direction of the basket and then put the basket into the machine, and there is no need to clean the film layer and rework from the texturing process. Thereby, the automation level and operation efficiency of the overall production line are improved. At the same time, the anti-drop traction frame 7 can not only cooperate with the transmission belt 301 to push the transfer basket 4 to the flipping station by using the transmission belt 301, but also block the opening of the transfer basket 4 during the flipping process to prevent the inserted silicon wafers 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 tabletop of the conveying table 2. The discharge end of the conveyor belt 201 is located inside the transfer basket 4. Symmetrically installed at one end of the conveying table 2 are a first driving gear 202 and a second driving gear 203 meshing with it. The first driving gear 202 and the roller shaft of the conveyor belt 201 are connected by belt drive. The second driving gear 203 meshes with the driving toothed belt 301. Specifically, the conveying table 2 is installed at the feeding position of the frame 1 and has a horizontal tabletop. The conveyor belt 201 is installed on the tabletop and is arranged along the length direction of the tabletop. Its discharge end extends into the inside of the transfer basket 4 so as to directly unload the silicon wafers from the conveyor belt 201 into the transfer basket 4, reducing manual intervention and material loss. At the same time, when the conveyor belt 201 operates, it will continuously drive the first driving gear 202 and the second driving gear 203 to rotate. When the driving toothed belt 301 on the lifting support plate 3 and the second driving gear 203 mesh with each other, the power during the operation of the conveyor belt 201 is transmitted to the driving toothed belt 301 through the meshing relationship, thereby pushing the transfer basket 4 to the flipping station without an additional power source. And the transfer basket 4 will only be pushed after the lifting support plate 3 rises to the corresponding height, avoiding the position of the transfer basket 4 from shifting when receiving the silicon wafers.

[0042] In a further embodiment of the present invention, the transfer basket 4 includes a back plate 401 and cushion plates 402 fixed to the top and bottom of the back plate 401. A number of upright columns 403 are installed between the two cushion plates 402. On one side of the upright columns 403, a plurality of protrusions 404 are fixedly connected. Specifically, the multiple upright columns 403 form the frame structure of the transfer basket 4, making the structure of the transfer basket 4 more stable. The area between the adjacent upper and lower protrusions 404 is the silicon wafer insertion area. After the silicon wafers are inserted, they can only be taken out from the opening of the transfer basket 4. If the opening of the transfer basket 4 is blocked by the anti-detachment traction frame 7, the silicon wafers cannot be taken out, thus ensuring the stable insertion of the silicon wafers and avoiding accidental dropping of the silicon wafers.

[0043] In a further embodiment of the present invention, an electric push rod 302 is installed between the bottom of the lifting support plate 3 and the frame 1. On both sides of the top of the lifting support plate 3, guide rails 303 for inserting the cushion plates 402 are symmetrically installed. Specifically, the electric push rod 302 serves as the power source of the lifting support plate 3 and is installed between the bottom of the lifting support plate 3 and the frame 1. 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 support plate 3. By controlling the telescopic movement of the electric push rod 302, precise control of the lifting support plate 3 in the vertical direction is achieved, thereby realizing the stable lifting of the transfer basket 4. The guide rails 303 match the size of the cushion plates 402 of the transfer basket 4, achieving stable plug-in fit during the lifting process, ensuring the synchronism of the lifting of the transfer basket 4 and the lifting support plate 3. At the same time, the guide rails 303 can also make the transfer basket 4 more stable when being pushed, avoiding the anti-detachment traction frame 7 on the transfer basket 4 from disengaging from the driving toothed belt 301.

[0044] In a further embodiment of the present invention, the docking mechanism 5 includes a connecting frame 501 fixed to the back plate 401. On one side of the connecting frame 501, there is a socket 502 for inserting the turning shaft 6. A docking groove 604 is provided on the turning shaft 6. A servo motor 601 connected to the end of the turning shaft 6 is installed on the frame 1. A positioning post is elastically inserted into the socket 502, and a jack matching the positioning post is provided on the docking groove 604. Specifically, the docking groove 604 on the turning shaft 6 cooperates with the socket 502 to ensure that the turning shaft 6 cannot rotate independently after being inserted into the socket 502 of the connecting frame 501, and it must drive the entire transfer basket 4 to flip. After the two are completely inserted together, by controlling the rotation direction and speed of the servo motor 601, precise control of the turning shaft 6 is achieved, thereby driving the transfer basket 4 to perform a flipping operation.

[0045] In a further embodiment of the present invention, the anti-drop traction frame 7 is elastically slidably connected to one side of the backing plate 402. A pair of sliders are fixedly connected to the anti-drop traction frame 7. A chute matching the sliders is provided on the backing plate 402. A top spring 704 abutted against the sliders is installed in the chute. The inside of the connecting frame 501 is hollow, and a compression airbag 504 communicating with the connecting frame 501 is embedded in the socket 502. Plug rods 505 are inserted at both openings at the two ends of the connecting frame 501. One end of the plug rod 505 is fixedly connected to a plugging rod 506. A guiding inclined groove 701 matching the plugging rod 506 is provided at one end of the anti-drop traction frame 7. Specifically, after the turning shaft 6 is inserted into the socket 502, as the transfer basket 4 moves further, the turning shaft 6 gradually compresses the compression airbag 504, allowing the gas in the compression airbag 504 to enter the connecting frame 501. Then, the plug rod 505 is pushed outwards by the air pressure. The plugging rod 506 on the plug rod 505 moves in the guiding inclined groove 701 to drive the anti-drop traction frame 7 to move towards the center of the transfer basket 4. By changing the position of the anti-drop traction frame 7, the purpose of preventing the silicon wafers from falling off the transfer basket 4 is achieved. When the turning shaft 6 is removed from the socket 502 on the connecting frame 501, the anti-drop traction frame 7 will move towards the outside of the transfer basket 4 under the action of the top spring 704 to facilitate the complete opening of the silicon wafer inlet before the transfer basket 4 re-receives the defective silicon wafers.

[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. Identify and separate the front film red silicon wafers to be processed through an automatic detection device into the NG channel in the rack 1, and then transfer them to the designated transfer basket 4 through the conveyor table 2;

[0051] S2. The lifting pallet 3 gradually lifts the transfer basket 4 under the instruction of the control system, so that each defective silicon wafer being conveyed is inserted into the transfer basket 4 in turn;

[0052] S3. When the lifting pallet 3 drives the transfer basket 4 to reach the corresponding height, drive the transmission toothed belt 301 to run through the conveyor table 2, and push the anti-disengagement traction frame 7 through the transmission toothed belt 301 to move the transfer basket 4 towards the flipping station until the docking mechanism 5 on its back is clamped with the rotating shaft 6;

[0053] S4. Perform the flipping operation, rotate the transfer basket 4 and the silicon wafers inside it vertically by 180 degrees to restore the front and back directions of the silicon wafers to the state before the process, and at the same time, the positions of the bottom and top of the transfer basket 4 are interchanged;

[0054] S5. Finally, let the transfer basket 4 enter the internal part of the replenishing plating equipment from the rack 1, automatically position and grab the silicon wafers in the transfer basket 4 through a manipulator, and load them into the graphite boat for preparing replenishing plating.

[0055] Only some exemplary embodiments of the present invention are described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the protection scope of the claims of the present invention.

Claims

1. A device for post-plating on the positive film of a battery cell that turns red, comprising a frame (1), characterized in that, It further includes: A conveying table (2), which is located at the feeding position of the frame (1). A lifting pallet (3) is installed between the conveying table (2) and the frame (1). Transmission toothed belts (301) that are in transmission cooperation with the conveying table (2) are installed on both sides of the lifting pallet (3); A transfer basket (4), which is slidably installed above the lifting pallet (3). A docking mechanism (5) is installed on the back of the transfer basket (4). A turning shaft (6) that cooperates with the docking mechanism (5) is installed in the frame (1). Anti-disengagement traction frames (7) that respectively cooperate with the docking mechanism (5) and the transmission toothed belt (301) are symmetrically installed in the transfer basket (4); The transfer basket (4) includes a back plate (401) and cushion plates (402) fixed to the top and bottom of the back plate (401). A number of upright columns (403) are installed between the two cushion plates (402). A plurality of protrusions (404) are fixedly connected to one side of the upright column (403); The docking mechanism (5) includes a connecting frame (501) fixed to the back plate (401). A plug-in slot (502) for inserting the turning shaft (6) is fixedly connected to one side of the connecting frame (501); The anti-disengagement traction frame (7) is elastically slidably connected to one side of the cushion plate (402). The inside of the connecting frame (501) is hollow. A compression air bag (504) that communicates with the connecting frame (501) is embedded in the plug-in slot (502). Plug rods (505) are inserted at both open ends of the connecting frame (501). A plugging rod (506) is fixedly connected to one end of the plug rod (505). A guiding inclined slot (701) that matches the plugging rod (506) is opened at one end of the anti-disengagement traction frame (7); When the lifting pallet (3) lifts the transfer basket (4) to a corresponding height, the anti-disengagement traction frame (7) is in clamping cooperation with the transmission toothed belt (301) to drive the transfer basket (4) to move to the flipping station. When the docking mechanism (5) and the turning shaft (6) are clamped with each other, the anti-disengagement traction frame (7) moves away from above the conveyor belt (301) and blocks the opening of the transfer basket (4).

2. The post-plating device for the positive film of a battery cell after it turns red according to claim 1, wherein, A conveyor belt (201) is installed on the tabletop of the conveying table (2). The discharging end of the conveyor belt (201) is inside the transfer basket (4). A first transmission gear (202) and a second transmission gear (203) meshing with it are installed at one end of the conveying table (2). The first transmission gear (202) is in roller transmission connection with the roller shaft of the conveyor belt (201). The second transmission gear (203) meshes with the transmission toothed belt (301).

3. The post-plating device for the positive film of a battery cell that turns red according to claim 1, wherein An electric push rod (302) is installed between the bottom of the lifting pallet (3) and the frame (1). Guide rails (303) for inserting the cushion plate (402) are symmetrically installed on both sides of the top of the lifting pallet (3).

4. A post-plating device for a battery cell positive film after it turns red, characterized in that, A contact rod (702) is fixedly connected to the outside of the anti - detachment traction frame (7). Cross bars (101) are symmetrically installed between the discharge opening of the conveying table (2) and the frame (1). When the lifting support plate (3) drives the transfer flower basket (4) to reach the corresponding height, the contact rod (702) abuts against the transmission toothed belt (301) and the cross bar (101) respectively.

5. The post-plating device for a battery cell positive film after it turns red, according to claim 1, is characterized in that An anti - detachment blocking rod (703) is vertically installed between two vertically - distributed anti - detachment traction frames (7). The anti - detachment blocking rod (703) is located at the opening of the transfer flower basket (4).

6. A post-plating device for a battery cell positive film turning red, according to claim 1, wherein Connecting rods (602) are symmetrically hinged to the turning shaft (6). Plug rods (603) are symmetrically hinged to one side of the connecting rods (602). The plug rods (603) are parallel to the connecting rods (602). A docking sleeve (405) matching the plug rod (603) is fixedly connected to the back plate (401).

7. A method of using a post-plating device for a battery cell positive film that turns red as described in any one of claims 1-6, characterized in that, It includes the following steps: S1. The positive - film red - colored silicon wafers of the battery wafers to be processed are identified and separated into the NG channel in the frame (1) by an automatic detection device, and then are transmitted to the designated transfer flower basket (4) through the conveying table (2). S2. The lifting support plate (3) gradually lifts the transfer flower basket (4) under the command of the control system, so that each of the transported defective silicon wafers is inserted into the transfer flower basket (4) in sequence. S3. When the lifting support plate (3) drives the transfer flower basket (4) to reach the corresponding height, the conveying table (2) drives the transmission toothed belt (301) to run. The anti - detachment traction frame (7) is pushed by the transmission toothed belt (301) to move the transfer flower basket (4) towards the flipping station until the docking mechanism (5) on its back is clamped with the turning shaft (6). S4. Perform the flipping operation to vertically rotate the transfer flower basket (4) and the silicon wafers inside it by 180 degrees, so that the front - back direction of the silicon wafers returns to the state before the process, and at the same time, the bottom and top positions of the transfer flower basket (4) are interchanged. S5. Finally, the transfer flower basket (4) enters the internal part of the replenishing plating equipment from the frame (1). The silicon wafers in the transfer flower basket (4) are automatically positioned and grabbed by a manipulator and loaded into a graphite boat for preparing replenishing plating.

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