Automatic gluing device and gluing method for battery piece

Abstract

The invention belongs to the technical field of photovoltaic cell manufacturing, and particularly relates to an automatic gluing device and method for a battery piece, and the device comprises a conveying mechanism which drives the battery piece to move, and a first gluing mechanism and a second gluing mechanism which are disposed on the same side of the conveying mechanism. And the conveying mechanism drives the battery piece to sequentially pass through the first gluing mechanism and the second gluing mechanism for gluing treatment. The device has the beneficial effects that the two sets of gluing mechanisms which are not in physical contact with the edge of the battery piece are arranged, and a better edge sealing effect is achieved through twice gluing; by controlling the thicknesses of the two material grooves and the depths of the battery pieces embedded into the material grooves, the coating widths and thicknesses of the battery pieces with different specifications can be realized; by controlling the rotating speed of the roller and the moving speed of the battery piece on the annular track, the thickness uniformity of the battery piece during gluing can be realized; and a plurality of sets of X-axis, Y-axis and Z-axis rails are arranged, matching is conducted according to feeding, discharging and gluing positions, and positioning is more accurate.

Description

Technical Field

[0001] The invention belongs to the technical field of photovoltaic cell manufacturing, and particularly relates to an automatic glue coating device and a glue coating method for battery wafers. Background Art

[0002] Photovoltaic cells are the most core components for photovoltaic systems to achieve photoelectric conversion. Their preparation processes mainly include several major technological links such as cleaning and texturing, diffusion and junction formation, front and back surface coating, and metallization printing and curing. Among them, the metallization link is mainly used to manufacture the electrode grid lines of photovoltaic cells. In the traditional process, silver paste is printed and cured on both sides of the battery to form a metal electrode, so that the electrode is tightly combined with the battery wafer to form an efficient ohmic contact to achieve current output. Silver paste uses expensive silver powder as the main base material. At present, the supply of silver powder mainly relies on foreign imports. The large consumption of silver paste and high cost are one of the pain points restricting the accelerated industrialization of N-type cells such as HJT cells (crystalline silicon heterojunction solar cells). The industry urgently needs to innovate the metallization process to reduce costs and increase efficiency. Copper electroplating is a non-contact copper electrode preparation process that enables photovoltaic cells to achieve complete silver-free. During the process of forming metal electrodes on battery wafers by electroplating technology, the edges of the battery wafers need to be protected by insulating materials to prevent metal deposition around the battery wafers. In the prior art, it is difficult to control the coating accuracy and uniformity when manually sealing the edges of battery wafers. The sealing effect is poor, the production efficiency is low, and mass production cannot be achieved. Therefore, a new automatic glue coating device and glue coating method for battery wafers are needed to solve the above technical problems. Summary of the Invention

[0003] The problem to be solved by the present invention is to provide an automatic glue coating device and a glue coating method for battery wafers, which can be automatically adjusted according to the thickness and size of battery wafers of various specifications, achieve different coating widths and thicknesses, and improve the glue coating efficiency and quality.

[0004] To solve the above technical problems, the technical solution adopted by the present invention is: an automatic glue coating device for battery wafers, characterized in that: it includes a conveying mechanism for driving the movement of the battery wafer and a first glue coating mechanism and a second glue coating mechanism arranged on the same side of the conveying mechanism. The conveying mechanism drives the battery wafer to pass through the first glue coating mechanism and the second glue coating mechanism in sequence for glue coating treatment.

[0005] Further, first glue coating parts are symmetrically arranged on the first glue coating mechanism, and second glue coating parts are symmetrically arranged on the second glue coating mechanism. The battery wafer first passes through between the two first glue coating parts to perform glue coating treatment on part of the edge, and then passes through between the two second glue coating parts to perform glue coating treatment on the remaining edge.

[0006] Further, the first glue - applying part includes a first roller, a first material groove arranged on the first roller, and a first storage box communicated with the first material groove and providing glue for it. The battery cell is embedded in the two first material grooves.

[0007] Further, the first glue - applying part further includes a first scraping device arranged beside the first material groove for scraping off the redundant glue.

[0008] Further, the first glue - applying mechanism further includes a first X - axis track and a first Z - axis track. The first Z - axis track is symmetrically arranged on the same side of the first X - axis track, and the end on the same side is rotatably connected to the first roller. Driving the first X - axis track and / or the first Z - axis track to align the center of the first material groove with the glue - applying position of the battery cell.

[0009] Further, the second glue - applying part includes a second roller, a second material groove arranged on the second roller, and a second storage box communicated with the second material groove and providing glue for it. The battery cell is embedded in the two second material grooves.

[0010] Further, the second glue - applying mechanism further includes a second X - axis track and a second Z - axis track. The second Z - axis track is symmetrically arranged on the same side of the second X - axis track, and the end on the same side is rotatably connected to the second roller. Driving the second X - axis track and / or the second Z - axis track to align the center of the second material groove with the glue - applying position of the battery cell.

[0011] Further, the conveying structure includes a frame, an annular track arranged on the frame, and an adsorption platform moving along the annular track. The adsorption platform is used for adsorbing the battery cell.

[0012] Further, the adsorption platform is connected to the motor mover through a rotating device, and the side of the motor mover away from the rotating device is connected to the annular track.

[0013] Further, the side of the motor mover away from the rotating device is slidably connected to the annular track through a lifting mechanism.

[0014] The glue - applying method using the battery - cell automatic glue - applying device as described above is characterized in that:

[0015] Driving the battery cell through the conveying track, the first glue - applying mechanism performs glue - applying treatment on part of the edges of the battery cell, and the second glue - applying mechanism performs glue - applying treatment on the remaining edges of the battery cell;

[0016] Further, the battery cell first passes through between the two first glue - applying parts for glue - applying treatment on part of the edges, and then passes through between the two second glue - applying parts for glue - applying treatment on the remaining edges.

[0017] Adopting the above technical solution, a first glue - applying mechanism and a second glue - applying mechanism that do not physically contact the edge of the battery cell are provided, and the edge of the battery cell is glue - applied in two processes, achieving a better edge - sealing effect; by controlling the thickness of the two material grooves and the depth of the battery cell inserted into the material grooves, the covering width and thickness of battery cells of different specifications can be achieved, improving the glue - applying efficiency and quality; by controlling the rotation speed of the roller to match the moving speed of the battery cell on the circular track, the thickness uniformity of the battery cell during glue - application can be achieved; the lifting mechanism on the motor mover can adjust the height according to the different thicknesses of the battery cells, ensuring that the battery cell is always in the middle of the material groove opening to ensure the glue - applying quality; multiple sets of XYZ - axis tracks are set, which are respectively matched according to the requirements of loading, unloading, and glue - applying positions, with more accurate positioning and higher automation degree. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a perspective view of the embodiment provided by the present invention;

[0019] Figure 2 is a structural schematic diagram of the embodiment provided by the present invention during use;

[0020] Figure 3 is a structural schematic diagram of the first glue - applying mechanism in the embodiment provided by the present invention;

[0021] Figure 4 is a structural schematic diagram of the second glue - applying mechanism in the embodiment provided by the present invention;

[0022] Figure 5 is a structural schematic diagram of the conveying mechanism in the embodiment provided by the present invention;

[0023] Figure 6 is a structural schematic diagram of the loading mechanism in the embodiment provided by the present invention;

[0024] Figure 7 is a structural schematic diagram of the unloading mechanism in the embodiment provided by the present invention.

[0025] In the figure:

[0026] 1. Battery cell; 2. Conveyor mechanism; 21. Motor rotor; 22. Rotating device; 23. Adsorption platform; 24. Ring track; 25. Frame; 26. Lifting mechanism; 3. First glue application mechanism; 31. First X-axis track; 32. First Z-axis track; 33. First glue application part; 331. First roller; 332. First material tank; 333. First storage box; 334. First scraping device; 335. First connecting piece; 336. First return pipe; 337. First motor base; 338. First motor; 4. Second glue application mechanism; 41. Second X-axis track; 42. Second Z-axis track; 43. Second glue application part; 431. Second roller; 432. Second material tank; 433. Second storage box; 434. Second scraping device; 435. Second connecting piece; 436. Second return pipe; 437. Second motor base; 438. Second motor; 5. Loading structure; 51. First Y-axis track; 52. Third X-axis track; 53. Third Z-axis track; 54. Deviation correction device; 55. Connecting plate; 56. First Bernoulli suction cup; 57. Conveyor belt; 6. Unloading structure; 61. Second Y-axis track; 62. Fourth X-axis track; 63. Fourth Z-axis track; 64. Second Bernoulli suction cup; 7. Mobile optical detection device; 71. Optical mounting plate; 72. Vision camera; 73. Light source. Detailed implementation manners

[0027] The following will describe in detail the detailed implementation manners of the present invention with reference to the accompanying drawings.

[0028] It is easy to understand that according to the technical solution of the present invention, without changing the essence of the present invention, those of ordinary skill in the art can propose various interchangeable structural forms and implementation manners. Therefore, the following detailed implementation manners and the accompanying drawings are only exemplary descriptions of the technical solution of the present invention, and should not be regarded as the whole of the present invention or as a limitation or restriction on the technical solution of the present invention.

[0029] The orientation terms such as up, down, left, right, top, bottom, etc. mentioned or possibly mentioned in this specification are defined relative to the structures shown in the respective drawings. They are relative concepts, and thus may change accordingly depending on their different positions and different usage states. Therefore, these or other orientation terms should not be construed as restrictive terms.

[0030] Such as Figure 1 And Figure 2As shown in the figure, the technical solution adopted by the present invention is: an automatic glue coating device for battery wafers, characterized in that: it includes a conveying mechanism 2 for driving the movement of the battery wafer 1 and a first glue coating mechanism 3 and a second glue coating mechanism 4 arranged on the same side of the conveying mechanism 2. The conveying mechanism 2 drives the battery wafer 1 to pass through the first glue coating mechanism 3 and the second glue coating mechanism 4 in sequence for glue coating treatment. In this embodiment, two glue coating mechanisms are provided above the conveying mechanism 2, namely the first glue coating mechanism 3 and the second glue coating mechanism 4. The glue coating operation of the battery wafer is divided into two steps, that is, the edge of the battery wafer is divided into two parts for glue coating treatment. The first part is coated with glue by the first glue coating mechanism 3, and the remaining part is processed by the second glue coating mechanism 4. Any part of the two glue coating mechanisms does not physically contact the edge of the battery wafer, which can realize the control of the coating accuracy and uniformity, improve the edge sealing effect, and realize mass production.

[0031] Preferably, first glue coating parts 33 are symmetrically arranged on the first glue coating mechanism 3, and second glue coating parts 43 are symmetrically arranged on the second glue coating mechanism 4. The battery wafer first passes through between the two first glue coating parts 33 to coat part of the edge, and then passes through between the two second glue coating parts 43 to coat the remaining edge. In this embodiment, the conveying mechanism 2, the first glue coating mechanism 3 and the second glue coating mechanism 4 form a glue coating line. As Figure 2 shown, driven by the conveying mechanism 2, the battery wafer 1 displaces along the above-mentioned glue coating line, coats part of the edge of the battery wafer 1 at the first glue coating part 33 of the first glue coating mechanism 3, and then coats the remaining edge of the battery wafer 1 at the second glue coating part 43 of the second glue coating mechanism 4. This technical solution divides the glue coating operation of the battery wafer 1 into two steps, and neither the first glue coating part 33 nor the second glue coating part 43 directly physically contacts the battery wafer 1. During use, only the relative positions between the two glue coating mechanisms and the battery wafer need to be adjusted according to the size and thickness of the battery wafer 1, which can effectively control the coating accuracy and uniformity during edge sealing, improve the edge sealing effect, and realize mass production.

[0032] Preferably, as Figure 3 shown, the first glue coating part 33 includes a first roller 331, a first material groove 332 arranged on the first roller 331, and a first storage box 333 communicating with the first material groove 332 and providing glue for it. The battery wafer 1 is embedded in the two first material grooves 332.

[0033] Preferably, the first material groove 332 is a first annular groove circumferentially distributed along the first roller 331. In this embodiment, the coating material is introduced into the first annular groove through the first storage box 333 to coat the battery wafer 1 passing through the groove. A variety of materials including ink and UV curable anti-electroplating agent can be coated. By controlling the width of the first annular groove and the embedding depth of the battery wafer, the coating accuracy can be accurately controlled.

[0034] Preferably, the centers of the first material tank 332 and the second material tank 432 are aligned with the battery cell 1 to be coated. During use, only the positions of the two material tanks relative to the battery cell need to be adjusted. The battery cell is inserted into the material tank, and the coating process is realized during its displacement along with the conveying mechanism 2.

[0035] In this embodiment, the first roller 331 drives the first material tank 332 to rotate together. By controlling the rotation speed of the first roller 331 and the discharging speed of the first storage box 333, the uniformity of the material in the first material tank 332 is controlled to ensure the coating quality.

[0036] Preferably, the first storage box 333 is provided with a first opening, and the first opening communicates with the first annular groove to provide the glue for coating. By changing the widths of the first material tank 332 and the second material tank 432 and the depth of the battery cell 1 inserted into the groove, different coating widths and thicknesses can be achieved.

[0037] Preferably, the first coating part 33 further includes a first scraping device 334 arranged beside the first material tank 332 for scraping off the excess glue. The size of the discharging amount can be controlled by adjusting the gap between the first scraping device 334 and the first roller 331.

[0038] Preferably, the first roller 331 is connected to the first storage box 333 through a first connecting member 335. One side of the first scraping device 334 is arranged on the first connecting member 335, and the other side is in contact with the outer surface of the first annular groove.

[0039] Preferably, the first connecting member 335 is connected to the first storage box 333 through a first return pipe 336 for recycling the excess glue into the first storage box 333.

[0040] Preferably, the first roller 331 is connected to the first motor 338 through a first motor base 337, and the first motor base 337 is connected to the first Z-axis track 32.

[0041] Preferably, as Figure 3As shown in the figure, the first glue - applying mechanism 3 includes a first X - axis track 31 and a first Z - axis track 32. The first Z - axis track 32 is symmetrically arranged on the same side of the first X - axis track 31, and the end on its same side is rotatably connected to the first roller 331. By driving the first X - axis track 31 and / or the first Z - axis track 32, the center of the first material tank 332 can be aligned with the glue - applying position of the battery cell 1. In this embodiment, the first glue - applying part 33 is both a glue - applying device and a feeding device. By moving the first X - axis track 31, the battery cell 1 can be located between the two first Z - axis tracks 32. By moving the first Z - axis track 32, the first glue - applying part 33 can be aligned with a part of the edge of the battery cell 1 that needs to be coated, realizing chamfer - edge glue - applying and long - side glue - applying for the battery cell 1. It should be noted that the long side and chamfer can be coated first by the first glue - applying part 33, and then the short side can be coated by the second glue - applying part 43, or the short side and chamfer can be coated first by the first glue - applying part 33, and then the long side can be coated by the second glue - applying part 43. The two - time glue - applying just completes the entire edge glue - applying of the whole battery cell 1, and no specific limitation is made here.

[0042] Preferably, the vertical distances between the first glue - applying mechanism 3 and the second glue - applying mechanism 4 and the conveying mechanism 2 are the same.

[0043] Preferably, the first glue - applying mechanism 3 and the second glue - applying mechanism 4 are arranged in parallel above the conveying mechanism 2. In this embodiment, the other ends of the first glue - applying mechanism 3 and the second glue - applying mechanism 4 are connected to the fixed frame. By driving the first X - axis track 31 and the first Z - axis track 32, the battery cell 1 can be located between the two first glue - applying parts 33. By driving the second X - axis track 41 and the second Z - axis track 42, the battery cell 1 can be located between the two second glue - applying parts 43. This automatic control system can be flexibly adjusted according to the position of the battery cell, greatly improving the glue - applying quality. Here, the two sets of X - axis tracks and the two sets of Z - axis tracks can automatically adjust their positions according to the size and specifications of the battery cell 1, solving the compatibility problem of battery cells of various sizes and specifications.

[0044] Preferably, as Figure 5 shown, the conveying structure 2 includes a frame 25, an annular track 24 arranged on the frame 25, and an adsorption platform 23 moving along the annular track 24. The adsorption platform 23 adsorbs the battery cell 1 and drives its displacement.

[0045] Preferably, the annular track 24 includes two parallel straight tracks and an arc track connecting the two straight tracks.

[0046] Preferably, both the first material trough 332 and the second material trough 432 are located on the linear track. In this embodiment, the first roller 331 and the second roller 431 have the same structure and size. When gluing the long side and the chamfer first, the distance between the two first material troughs 332 matches the short side of the battery cell, so that the battery cell is inserted into the first material trough 332 for gluing. When gluing the short side, the distance between the two second material troughs 432 matches the long side of the battery cell, so that the battery cell is inserted into the second material trough 432 for gluing. It should be noted that the first X-axis track 31 and the first Z-axis track 32 for driving the displacement of the first material trough 332 can have the same structure as the second X-axis track 41 and the second Z-axis track 42 for driving the displacement of the second material trough 432, or can be two different sets of structures, as long as they can achieve the same function, and no specific limitation is made here.

[0047] Preferably, a plurality of adsorption platforms 23 are provided on the annular track 24.

[0048] Preferably, the adsorption platform 23 is connected to the motor mover 21 through a rotating device 22, and the side of the motor mover 21 away from the rotating device 22 is connected to the annular track 24. The first motor 338 drives the first roller 331 to rotate. By controlling the rotation speed of the first roller 331 and the moving speed of the battery cell 1 on the motor mover 21, the thickness uniformity during the gluing of the battery cell 1 can be achieved. It should be noted that the rotating device 22 here can rotate the adsorption platform at its top, thereby driving the battery cell 1 to rotate, and the rotation angle can be adjusted to facilitate gluing different sides of the battery. The rotating device 22 can be a hollow rotating mechanism, a cam-type rotating mechanism, a spiral-type rotating mechanism, or other structures that can achieve this function. This structure is common knowledge in the art and will not be elaborated in depth here.

[0049] Preferably, the side of the motor mover 21 away from the rotating device 22 is slidably connected to the annular track 24 through a lifting mechanism 26. In this embodiment, a plurality of motor movers 21 are provided on the annular track 24, and an adsorption platform 23 is arranged on each motor mover 21, and multiple battery cells 1 can be adsorbed simultaneously to realize the process cycle. The lifting mechanism on the motor mover 21 can adjust the height according to the different thicknesses of the battery cells 1 to ensure that the battery cells 1 are always in the middle of the first material trough 332 of the first roller 331, facilitating the gluing process. It should be noted that the lifting mechanism 26 here can be an electric lifting rod, a lifting column, a screw jack with matching structure sizes, or other structures that can achieve a change in the vertical distance. This belongs to the common knowledge of those skilled in the art and will not be elaborated in depth here.

[0050] Preferably, as Figure 4As shown, the second gluing part 43 includes a second roller 431, a second material tank 432 provided on the second roller 431, and a second storage box 433 communicating with the second material tank 432 and providing glue for it. The battery cell 1 is embedded in the two second material tanks 432.

[0051] Preferably, as Figure 4 shown, the second gluing mechanism 4 further includes a second X-axis track 41 and a second Z-axis track 42. The second Z-axis track 42 is symmetrically arranged on the same side of the second X-axis track 41, and the end on the same side is rotatably connected to the second roller 431. Drive the second X-axis track 41 and / or the second Z-axis track 42 to align the center of the second material tank 432 with the gluing position of the battery cell 1.

[0052] In this embodiment, as Figure 1 shown, the second X-axis track 41 and the first X-axis track 31 are arranged in parallel, and the vertical distances from both of them to the annular track 24 are the same, and the annular track 24 is located between the two second gluing parts 43 and the two first gluing parts 33. The first gluing part 33 glues the long sides and chamfers of the battery cell, and the second gluing part 43 glues the remaining short sides.

[0053] Preferably, the second material tank 432 is a second annular groove distributed circumferentially along the second roller 431.

[0054] Preferably, the second storage box 433 is provided with a second opening, and the second opening communicates with the second annular groove to provide glue for gluing.

[0055] Preferably, the second gluing part 43 further includes a second scraping device 434 arranged beside the second material tank 432 for scraping off the excess glue.

[0056] Preferably, the second roller 431 is connected to the second storage box 433 through a second connecting member 435. One side of the second scraping device 434 is arranged on the second connecting member 435, and the other side is in contact with the outer surface of the second annular groove.

[0057] Preferably, the second connecting member 435 is connected to the second storage box 433 through a second return pipe 436 for recycling the excess glue back to the second storage box 433.

[0058] Preferably, the second roller 431 is connected to the second motor 438 through a second motor base 437, and the second motor base 437 is connected to the second Z-axis track 42.

[0059] Preferably, the annular track 24 is connected to a feeding mechanism 5. The feeding mechanism 5 is used to place the battery cell 1 to be glued on the adsorption platform 23 and feed back its position information to the first gluing mechanism 3 and the second gluing mechanism 4. In this embodiment, as Figure 6As shown in the figure, the feeding mechanism 5 includes a third X-axis rail 52, first Y-axis rails 51 symmetrically arranged on the same side of the third X-axis rail 52, and a third Z-axis rail 53 connected to the third X-axis rail 52. A deviation correction device 54 and a connecting plate 55 are provided at the bottom of the third Z-axis rail 53. A first Bernoulli suction cup 56 is provided at the bottom of the connecting plate 55 for adsorbing the battery cell 1 on the conveyor belt 57. Through the mutual cooperation of the XYZ-axis rails, the first Bernoulli suction cup 56 is positioned directly above the conveyor belt 57. A mobile optical detection device 7 is provided at the bottom of the feeding mechanism 5. The mobile optical detection device 7 includes an optical mounting plate 71, a vision camera 72, and a light source 73. The visual field range of the above-mentioned mobile optical detection device 7 is adjustable. It can be placed directly below the feeding battery cell 1 to save time during subsequent feeding by taking pictures in advance.

[0060] Preferably, the third X-axis rail 52, the first Y-axis rails 51, the third Z-axis rail 53, and the deviation correction device 54 are all electrically connected to the mobile optical detection device.

[0061] During feeding, the mobile optical detection device 7 takes pictures of the battery cell 1 located above it to obtain the position, and then sends the information and the deviation correction amount to be adjusted to the third X-axis rail 52, the first Y-axis rails 51, the third Z-axis rail 53, and the deviation correction device 54 for position compensation. The battery cell 1 after position adjustment is adsorbed on the adsorption platform 23 and is driven by the motor mover 21 to move along the annular track 24.

[0062] Preferably, the annular track 24 is connected to the discharging mechanism 6. The discharging mechanism 6 is used to take away the battery cell 1 after the second gluing treatment. In this embodiment, as Figure 7 shown, the discharging mechanism 6 includes a fourth X-axis rail 62, second Y-axis rails 61 symmetrically arranged on the same side of the fourth X-axis rail 62, and a fourth Z-axis rail 63 connected to the fourth X-axis rail 62. A second Bernoulli suction cup 64 is provided at the bottom of the fourth Z-axis rail 63 for adsorbing the battery cell 1 after gluing treatment.

[0063] During discharging, through the mutual cooperation of the second Y-axis rail 61, the fourth X-axis rail 62, and the fourth Z-axis rail 63, the second Bernoulli suction cup 64 is moved directly above the battery cell 1, adsorbed, and then moved to the storage point.

[0064] It should be noted that the structures such as the first X-axis rail 31, the first Z-axis rail 32, the second X-axis rail 41, the second Z-axis rail 42, the third X-axis rail 52, the first Y-axis rails 51, the third Z-axis rail 53, the fourth X-axis rail 62, the fourth Z-axis rail 63, and the second Y-axis rail 61 mentioned in this technical solution are structures that can drive other components to slide in different directions of the XYZ axes. They can be sliding guide rails or other structures that can achieve the same function, and are not specifically limited here.

[0065] A gluing method using the automatic battery cell gluing device described above, characterized in that: the battery cell 1 is driven by the conveying track 2 to first pass between two first gluing parts 33 to perform gluing treatment on part of the edge, and then pass between two second gluing parts 43 to perform gluing treatment on the remaining edge.

[0066] Embodiment 1:

[0067] The right side of the annular track 24 is the loading point, and the left side is the unloading point. There are multiple motor movers 21 moving along the annular track 24 between the loading point and the unloading point. The annular track 24 includes two parallel linear tracks and an arc track connecting the two linear tracks. The positions where the first gluing part 33 and the second gluing part 43 perform gluing are both on the same linear track, that is, the first X-axis track and the second X-axis track are both perpendicular to the above-mentioned linear track.

[0068] The first gluing mechanism 3 and the second gluing mechanism 4 are two sets of devices with the same structure.

[0069] During loading, the long side of the battery cell 1 is perpendicular to the annular track 24. During the process of the motor mover 21 driving the battery cell 1 to move, the long side of the battery cell 1 is always perpendicular to the first X-axis track. The distance between the two first material grooves 332 matches the short side of the battery cell 1, and the long side and chamfer of the battery cell 1 are glued through the first gluing mechanism 3. Before entering the second gluing mechanism 4, the rotating device 22 on the motor mover 21 is driven, and the battery cell 1 rotates 90 degrees so that the short side of the battery cell 1 is perpendicular to the second X-axis track. The distance between the two second material grooves 432 is adjusted to match the long side of the battery cell 1, and the short side is glued.

[0070] The annular track 24 is installed on the top of the frame 25. Multiple motor movers 21 are installed on the annular track 24. A rotating device and an adsorption platform 23 are installed on the motor mover 21. By controlling the movement of the motor mover 21 on the annular track 24 by the upper computer, precise control of the position and speed of the battery cell 1 can be achieved.

[0071] The third X-axis rail 52 is installed on the first Y-axis rail 51, the third Z-axis rail 53 is installed on the third X-axis rail 52, the deviation rectifying device 54 is installed on the third Z-axis rail 53, a connecting plate 55 is installed below the deviation rectifying device 54, the first Bernoulli chuck 56 is installed on the connecting plate 55. The moving optical detection device 7 consists of an optical mounting plate 71, a vision camera 72, and a light source 73. When loading the battery cell 1, the moving optical detection device 7 takes a photo of the battery cell 1 from above to obtain its position, and then sends the deviation rectifying amount to the third X-axis rail 52, the first Y-axis rail 51, the third Z-axis rail 53, and the deviation rectifying device 54 through the upper computer and algorithm for position compensation, that is, driving the first Bernoulli chuck 56 to adsorb and displace the battery cell, so that the battery cell 1 is moved from the first Bernoulli chuck 56 to the adsorption platform 23, and the battery cell 1 is driven by the motor mover 21 to displace along the annular track 24 to achieve the position positioning before the battery cell is coated with glue.

[0072] First, apply glue to the long side and the chamfers on both sides of the battery cell.

[0073] Any part of the first glue application mechanism 3 does not physically contact the edge of the battery cell 1. Through the control of the position of the first Z-axis rail 32 and the rotation of the first roller 331 driven by the first motor 338, the first roller 331 and the battery cell 1 move relative to each other, and the glue in the first material tank 332 applies glue to the long side and the chamfers of the battery cell 1. The outlet of the first storage box 333 is aligned with the first material tank 332 and continuously supplies material to the first material tank 332. The first scraper 334 scrapes off the excess glue at the first material tank 332. By controlling the rotation speed of the first roller 331 and the discharging speed of the first storage box 333, the uniformity of the material in the first material tank 332 can be accurately controlled. The first return pipe 336 recovers the excess material to the first storage box 333, saving costs.

[0074] Then, apply glue to the short side of the battery cell. Similarly, any part of the second glue application mechanism 4 does not physically contact the edge of the battery cell 1. The battery cell 1 that has passed through the first glue application mechanism 3 rotates 90° (either left or right) under the control of the rotating device 2. Through the control of the position of the second Z-axis rail 42 and the rotation of the second roller 431 driven by the second motor 438, the second roller 431 and the battery cell 1 move relative to each other, and the glue in the second material tank 432 applies glue to the short side of the battery cell 1. The battery cell 1 passes through the first glue application mechanism 3 and the second glue application mechanism 4 in sequence, and the rotation directions of the first roller 331 and the second roller 431 on the same side are kept consistent.

[0075] The second Y-axis rail 61, the fourth X-axis rail 62, and the fourth Z-axis rail 63 cooperate with each other and control the second Bernoulli chuck 64 to adsorb the glued battery cell 1 for discharging.

[0076] The beneficial effects of the present invention are as follows: The first and second glue - applying mechanisms that do not physically contact the edges of the battery cells are provided, and the edges of the battery cells are glued in two processes, achieving a better edge - sealing effect; by controlling the thicknesses of the two material grooves and the depth of the battery cells inserted into the material grooves, the covering width and thickness of battery cells of different specifications can be realized, improving the glue - applying efficiency and quality; by controlling the rotation speed of the rollers to match the moving speed of the battery cells on the annular track, the thickness uniformity during the glue - applying of the battery cells can be achieved; the up - and - down mechanism on the motor mover can adjust the height according to the different thicknesses of the battery cells, ensuring that the battery cells are always in the middle of the material groove opening to guarantee the glue - applying quality; multiple sets of XYZ - axis tracks are provided, which are respectively matched according to the requirements of the loading, unloading, and glue - applying positions, with more accurate positioning and higher automation degree.

[0077] The above has described the embodiments of the present invention in detail, but the content described is only the preferred embodiments of the present invention and cannot be considered as used to limit the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of the present invention application should still fall within the patent coverage scope of the present invention.

Claims

1. An automatic glue - coating device for battery chips, characterized in that: it includes a conveying mechanism for driving the movement of the battery chips, and a first glue - coating mechanism and a second glue - coating mechanism arranged on the same side of the conveying mechanism. The conveying mechanism drives the battery chips to pass through the first glue - coating mechanism and the second glue - coating mechanism in sequence for glue - coating treatment.

2. The automatic glue - coating device for battery chips according to claim 1, characterized in that: symmetric first glue - coating parts are provided on the first glue - coating mechanism, and symmetric second glue - coating parts are provided on the second glue - coating mechanism.

3. The automatic glue - coating device for battery chips according to claim 2, characterized in that: the first glue - coating part includes a first roller, a first material groove arranged on the first roller, and a first storage box communicating with the first material groove and providing glue for it. The battery chip is embedded in the two first material grooves.

4. The automatic glue - coating device for battery chips according to claim 3, characterized in that: the first glue - coating part further includes a first scraping device arranged beside the first material groove for scraping off the excess glue.

5. The automatic glue - coating device for battery chips according to claim 3 or 4, characterized in that: the first glue - coating mechanism further includes a first X - axis track and a first Z - axis track. The first Z - axis track is symmetrically arranged on the same side of the first X - axis track, and the end on the same side is rotationally connected to the first roller. Driving the first X - axis track and / or the first Z - axis track to align the center of the first material groove with the glue - coating position of the battery chip.

6. The automatic glue - coating device for battery chips according to claim 5, characterized in that: the second glue - coating part includes a second roller, a second material groove arranged on the second roller, and a second storage box communicating with the second material groove and providing glue for it. The battery chip is embedded in the two second material grooves.

7. The automatic glue - coating device for battery chips according to claim 6, characterized in that: the second glue - coating mechanism further includes a second X - axis track and a second Z - axis track. The second Z - axis track is symmetrically arranged on the same side of the second X - axis track, and the end on the same side is rotationally connected to the second roller. Driving the second X - axis track and / or the second Z - axis track to align the center of the second material groove with the glue - coating position of the battery chip.

8. The automatic glue - coating device for battery chips according to any one of claims 1 to 7, characterized in that: the conveying structure includes a frame, an annular track arranged on the frame, and an adsorption platform moving along the annular track. The adsorption platform is used for adsorbing the battery chips.

9. The automatic glue - coating device for battery chips according to claim 8, characterized in that: the adsorption platform is connected to the motor mover through a rotating device, and the side of the motor mover away from the rotating device is connected to the annular track.

10. A glue - coating method using the automatic glue - coating device for battery chips according to any one of claims 1 to 9, characterized in that: driving the battery chip through the conveying track, the first glue - coating mechanism performs glue - coating treatment on part of the edge of the battery chip, and the second glue - coating mechanism performs glue - coating treatment on the remaining edge of the battery chip; Preferably, the cell first passes through between the two first glue application parts to perform glue application treatment on part of the edge, and then passes through between the two second glue application parts to perform glue application treatment on the remaining edge.

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