Battery cell rubberizing equipment

Abstract

The battery cell rubberizing equipment comprises a rack which is sequentially divided into an operation area, a feeding area, a positioning area, a film tearing area and a cell rubberizing area in the horizontal direction; the two sets of storage boxes are distributed in the vertical direction, the two sets of storage boxes are both connected with transverse moving and transferring modules and used for transferring the storage boxes between the operation area and the feeding area, the storage box located on the lower portion is further connected with a lifting and transferring module, and the lifting and transferring module is connected with the transverse moving and transferring modules; the positioning platform is arranged at the positioning area and is used for correcting and adjusting the workpiece; the two transfer manipulators are connected to the rack in a three-axis moving manner and are divided into an initial transfer part for transferring the workpieces from the feeding area to the positioning area and a final transfer part for transferring the workpieces from the positioning area to the film tearing area and the core pasting area in sequence; the lower film connecting piece is arranged at the film tearing area; and the upper film connecting piece is arranged on the final transfer part. The device has the effects that the efficiency of rubberizing work can be improved, and the structure of rubberizing equipment can be kept simple.

Description

Technical Field

[0001] The present application relates to the field of battery production, and particularly to a core sticking device for batteries. Background Art

[0002] Power batteries are power sources that provide power for tools. A power battery pack is mainly composed of a plurality of battery cores spliced together, that is, the adjacent sides of the plurality of battery cores are fixedly connected. In the assembly process of the existing power battery packs, welding and sticking are mainly used to connect and fix the adjacent battery cores. Although the method of connecting and fixing the battery cores by welding can ensure the firm connection of the adjacent battery cores, it is not convenient for disassembling and replacing the battery cores. If the method of sticking is used to connect and fix the adjacent battery cores, it is not only convenient for disassembling and replacing the battery cores, but also can ensure the heat dissipation effect of the battery cores.

[0003] In the related art, the core sticking device for batteries includes a frame, a storage box, a horizontal feeding module, a transfer manipulator, a positioning platform, a lower film connecting member, and an upper film tearing member. The frame is divided into an operation area, a loading area, a positioning area, a film tearing area, and a core sticking area in the horizontal direction. The storage box accommodates double-sided tapes stacked thereon, and the upper side of the storage box is open. At the operation area, the staff fills the double-sided tapes. At the loading area, other components take the double-sided tapes out of the storage box, and multiple storage boxes move at the same height. The horizontal feeding module is connected to the storage box, and the horizontal feeding module reciprocates the storage box between the operation area and the loading area. The transfer manipulator has the ability of three-axis movement, and there is one transfer manipulator. The transfer manipulator can transfer multiple double-sided tapes at a time. The transfer manipulator sequentially transfers the double-sided tapes from the loading area to the positioning area, the film tearing area, and the core sticking area.

[0004] The positioning platform is arranged at the positioning area. The transfer manipulator places the double-sided tape on the positioning platform, and the positioning platform adjusts the posture of the double-sided tape. After the adjustment is completed, the transfer manipulator takes the double-sided tape away from the positioning platform. The lower film tearing member is arranged at the film tearing area. The transfer manipulator brings the double-sided tape into the film tearing area. At this time, the lower film connecting member connects the lower light film of the double-sided tape, and then tears off the lower light film by means of the movement of the transfer manipulator. Then, the transfer manipulator transfers the double-sided tape to the core sticking area and sticks the double-sided tape on the battery core. The upper film tearing member is arranged at the core sticking area and tears off the upper light film of the double-sided tape after the double-sided tape is stuck on the battery core.

[0005] In view of the related technologies described above, there are the following problems: First, there is only one transfer manipulator. When the positioning platform adjusts the posture of the double-sided tape, the transfer manipulator cannot perform other tasks, so the working efficiency of the tape sticking device is low. Second, the storage box moves at the same height. After the double-sided tape in the storage box is used up, it can only wait for the staff to load the material before continuing the tape sticking work. Therefore, the tape sticking device will stop repeatedly, reducing the production efficiency. Third, the battery cells are usually placed on a horizontally conveyed tape, and the horizontal conveying direction is perpendicular to the distribution direction of multiple functional areas on the frame. Therefore, the upper film tearing member has at least two-axis moving capabilities in the vertical and horizontal directions, which makes the structure of the tape sticking device too complex. Summary of the Invention

[0006] In order to improve the efficiency of the tape sticking work and keep the structure of the tape sticking device simple, the present application provides a battery cell tape sticking device.

[0007] The battery cell tape sticking device provided by the present application adopts the following technical solutions: A battery cell tape sticking device, comprising: A frame, which is sequentially divided into an operation area, a loading area, a positioning area, a film tearing area, and a battery cell sticking area in the horizontal direction; Multiple storage boxes, which are distributed in two groups in the vertical direction. Both groups of the storage boxes are connected with a horizontal transfer module for transferring the storage boxes between the operation area and the loading area. The storage box located below is also connected with a lifting transfer module, and the lifting transfer module is connected with the horizontal transfer module; A positioning platform, which is arranged at the positioning area for calibrating and adjusting the workpiece; Two transfer manipulators, both of which are connected to the frame with three-axis movement, and are divided into an initial transfer part for transferring the workpiece from the loading area to the positioning area and a final transfer part for sequentially transferring the workpiece from the positioning area to the film tearing area and the battery cell sticking area; A lower film connecting member, which is arranged at the film tearing area; An upper film connecting member, which is arranged on the final transfer part.

[0008] By adopting the above technical solutions, firstly, the two transfer manipulators can each undertake part of the transfer work. When the positioning platform is working, the initial transfer part can remove a set of double-sided tapes. In this way, the processing time axes of the front and rear sets of double-sided tapes overlap, so the efficiency of the taping work can be improved. Secondly, when one set of storage boxes is in the loading area for loading, the other set of storage boxes can be in the operation area for the staff to prepare materials. Therefore, there will be no situation where there is no material available in the loading area of the equipment, so the working efficiency of the taping equipment can be improved. In addition, the two sets of storage boxes are both loaded at the same height in the loading area. While making use of the lower space of the equipment, the Z-direction travel of the transfer manipulator can be shortened, and the structure of the equipment can be kept compact. Thirdly, the upper film connecting part is directly arranged on the transfer manipulator, so the moving action of film tearing can be directly realized by means of the movement of the transfer manipulator. Therefore, while realizing film tearing, the structure of the taping equipment can be simplified.

[0009] Preferably, both the transverse transfer module and the lifting transfer module are of cylinder structure; each set of storage boxes is connected with a transfer sliding seat. The transfer sliding seat located above is connected with the output end of the transverse transfer module, and the transfer sliding seat located below is connected with the output end of the lifting transfer module. An intermediate connecting seat is arranged between the lifting transfer module and the transverse transfer module. The intermediate connecting seat is connected with the output end of the transverse transfer module, and the intermediate connecting seat is for the installation and setting of the lifting transfer module.

[0010] By adopting the above technical solutions, since it is a large batch of double-sided tape transfer and the requirements for the transfer position of the double-sided tape are not high, using a cylinder to move the storage boxes can use a simpler structure to realize the large batch and rapid transfer of double-sided tapes.

[0011] Preferably, a lifting guide rod is slidably penetrated through the intermediate connecting seat, and the lifting guide rod is connected with the transfer sliding seat.

[0012] By adopting the above technical solutions, since the range of multiple storage boxes is much larger than the range of the piston rod end face of the lifting transfer module, the setting of the lifting guide rod can increase the connection area between the intermediate transfer seat and the transfer sliding seat, thereby improving the lifting stability of the intermediate transfer seat.

[0013] Preferably, one transfer manipulator includes a three-axis movement module and multiple material taking hands, and the material taking hands use vacuum adsorption for material taking.

[0014] By adopting the above technical solutions, the three-axis movement module can realize the free movement of the material taking hands and also maintain the transfer accuracy. The material taking hands use vacuum adsorption, which can realize material taking without damaging the workpiece.

[0015] Preferably, the material taking hand of the initial transfer part includes an initial installation part, an initial installation nozzle plate, a suction nozzle, an over-suction detection block, and an over-suction detection grating. The initial installation part is connected to the three-axis moving module. The initial installation nozzle plate is vertically slidably connected to the initial installation part. The suction nozzle is arranged on the initial installation nozzle plate. The over-suction detection block is arranged on the initial installation nozzle plate. The over-suction detection grating is arranged on the initial installation part. The over-suction detection grating cooperates with the over-suction detection block to limit the minimum distance between the initial installation nozzle plate and the initial installation part.

[0016] By adopting the above technical solution, when the three-axis moving module moves the material taking hand downward, the suction nozzle will gradually approach the double-sided tape. After the suction nozzle abuts against the double-sided tape, the double-sided tape can be taken out. However, since the double-sided tape is relatively thin and multiple double-sided tapes are stacked, if the material taking hand continues to move downward after the suction nozzle abuts against the topmost double-sided tape, the initial installation nozzle plate will gradually approach the initial installation part. In this process, the pressure of the suction nozzle on the double-sided tape will gradually increase. If the pressure is too large, the lower double-sided tape will also be sucked up. Therefore, the cooperation between the over-suction detection block and the over-suction detection grating can be used to prevent the situation of sucking multiple double-sided tapes.

[0017] Preferably, the lower film connecting part is in the structure of a clamping jaw cylinder. A film assisting rotation cylinder is arranged between the lower film connecting part and the machine frame. The film assisting rotation cylinder enables the lower film connecting part to be rotatably arranged.

[0018] By adopting the above technical solution, compared with the method of clamping the optical film by the lower film connecting part and only moving the material taking hand to tear the film, in this design method, when tearing the lower optical film, the material taking hand can apply an upward acting force to the upper optical film and the adhesive layer. The film assisting rotation cylinder cooperates with the lower film connecting part to apply a downward and backward torque to the lower optical film, so that the tearing of the lower optical film can be more smooth, and thus it is not easy to cause the deformation of the adhesive layer or the breakage of the optical film due to film tearing.

[0019] Preferably, in the three-axis moving module of the final transfer part, the X-direction moving module is arranged along the distribution direction of multiple functional areas of the machine frame. The X-direction moving module is connected with a supplementary moving module, a lifting cylinder, and a compatible slider. The supplementary moving module is arranged on the machine frame. The driving direction of the supplementary moving module is parallel to the driving direction of the X-direction moving module. The supplementary moving module is rotatably connected to one end of the X-direction moving module close to the feeding area. The housing of the lifting cylinder is connected to the machine frame. The piston rod of the lifting cylinder is connected to the other end of the X-direction moving module away from the feeding area. One side of the compatible slider is slidably connected to the X-direction moving module, and the sliding direction is parallel to the length direction of the X-direction moving module. The other side of the compatible slider is rotatably connected to the piston rod of the lifting cylinder.

[0020] By adopting the above technical solution, when peeling the lower optical film in the film peeling area, the lower connecting film member cooperates with the film peeling rotating cylinder to apply a downward torque to the lower optical film. At this time, under the action of the supplementary moving module and the lifting cylinder, the X-direction moving module can make an obliquely upward arc movement to apply an obliquely upward torque to the upper optical film and the adhesive layer. Such a film peeling method is closest to manual film peeling, so it can not only make the peeling of the optical film smoother, but also less likely to cause the optical film to be torn. In addition, the way the X-direction moving module swings up and down can also make one end of the double-sided tape stick to the battery cell first and the other end stick to the battery cell last when finally pasting the adhesive, so that it can be pasted more smoothly and can also adapt to the film pasting areas with different undulating structures.

[0021] Preferably, a cutting roller is rotatably arranged at the position between the film peeling area and the cell pasting area of the frame. The cutting roller is arranged adjacent to the film peeling area and is located above the lower connecting film member.

[0022] By adopting the above technical solution, when the X-direction moving module swings upward to complete film peeling, the double-sided tape can also pass through the cutting roller. Since it passes through the cutting roller in an arc movement, it can more simply realize the incision treatment of the adhesive layer, so that more diverse processes can be achieved with fewer actions.

[0023] Preferably, the material taking hand of the final transfer part includes a final installation part, an adsorption plate, a pressure maintaining spring, a protection detection block and a protection detection grating. The final installation part is connected to the three-axis moving module. The adsorption plate is vertically slidably connected to the final installation part. The pressure maintaining spring is divided into connecting the final installation part and the adsorption plate. The protection detection block is arranged on the adsorption plate. The protection detection grating is arranged on the final installation part. The protection detection grating cooperates with the protection detection block to limit the minimum distance between the adsorption plate and the final installation part.

[0024] By adopting the above technical solution, while realizing material taking, the pressure maintaining spring can evenly apply pressure to the double-sided tape through the adsorption plate so that the double-sided tape is laid flat on the battery cell. At the same time, the cooperation between the protection detection block and the protection detection grating can prevent the material taking hand from overpressing the battery cell and damaging the battery cell.

[0025] Preferably, the upper connecting film member includes an assisting pasting cylinder and a film clamping cylinder. The assisting pasting cylinder is connected to the final transfer part, and the piston rod of the assisting pasting cylinder extends horizontally and telescopically; the shell of the film clamping cylinder is connected to the piston rod of the assisting pasting cylinder, and the film clamping cylinder is constructed as a clamping jaw cylinder; two upper connecting film members are arranged on one material taking hand, and the two upper connecting film members are symmetrically arranged with respect to the center of the material taking hand.

[0026] By adopting the above technical solution, the assisting pasting cylinder can not only make the clamping end of the film clamping cylinder enter and exit the area where the light film is located, but also apply a pulling force from the center of the double-sided tape outward when the film clamping cylinder clamps the light film, so that the double-sided tape can be pasted on the battery cell more flatly. At the same time, the two symmetrically arranged upper film connecting members can make the outward tension received by the double-sided tape more uniform. In addition, when the upper light film is torn off subsequently, it can be torn simultaneously from the front and back, so that the peeling of the upper light film is smoother.

[0027] In summary, the present application includes at least one of the following beneficial technical effects: 1. First, the two transfer manipulators can each undertake part of the transfer work. When the positioning platform is working, the initial transfer part can take down a group of double-sided tapes. In this way, the processing time axes of the front and back groups of double-sided tapes overlap, so the efficiency of the pasting work can be improved. Second, when one group of storage boxes is in the loading area for loading, the other group of storage boxes can be in the operation area for the staff to prepare materials. Therefore, there will be no situation where there is no material available in the loading area of the equipment, so the working efficiency of the pasting equipment can be improved. In addition, the two groups of storage boxes are both loaded at the same height in the loading area. While utilizing the lower space of the equipment, the Z-direction travel of the transfer manipulator can be shortened, and the structure of the equipment can be kept compact. Third, the upper film connecting member is directly arranged on the transfer manipulator, so the moving action of tearing the film can be directly realized by means of the movement of the transfer manipulator. Therefore, while realizing the film tearing, the structure of the pasting equipment can be simplified; 2. When the lower light film is peeled in the film tearing area, the lower film connecting member cooperates with the assisting tearing rotating cylinder to apply a downward torque to the lower light film. At this time, under the action of the supplementary moving module and the lifting cylinder, the X-direction moving module can make an obliquely upward arc movement to apply an obliquely upward torque to the upper light film and the adhesive layer. This way of tearing the film is closest to manual film tearing, so it can not only make the peeling of the light film smoother, but also make it less likely that the light film is torn. In addition, the way that the X-direction moving module swings up and down can also make one end of the double-sided tape stick to the battery cell first and the other end stick to the battery cell last when finally pasting the double-sided tape. In this way, it can be pasted more flatly and can also adapt to the film pasting areas with different undulating structures. Description of the Drawings

[0028] Figure 1 is the overall structure diagram of the battery cell pasting equipment in the embodiment of the present application.

[0029] Figure 2 is the schematic diagram for showing the specific structure of the positioning platform in the embodiment of the present application.

[0030] Figure 3 is the schematic diagram for showing how the two groups of storage boxes are driven in the embodiment of the present application.

[0031] Figure 4 It is a schematic diagram showing the specific structure of the material taking hand of the initial transfer part in the embodiment of the present application.

[0032] Figure 5 It is a schematic diagram showing the cooperation structure between the lower connecting film part and the frame in the embodiment of the present application.

[0033] Figure 6 It is a schematic diagram showing how the final transfer part swings up and down in the embodiment of the present application.

[0034] Figure 7 It is a schematic diagram showing the states of each part of the double-sided tape when stripping the lower layer of optical film in the embodiment of the present application.

[0035] Figure 8 It is a schematic diagram showing the specific structure of the material taking hand of the final transfer part in the embodiment of the present application.

[0036] Explanation of reference numerals: 1. Frame; 11. Operation area; 12. Loading area; 13. Positioning area; 14. Film tearing area; 15. Core sticking area; 2. Storage box; 21. Transverse transfer module; 22. Lifting transfer module; 23. Transfer sliding seat; 24. Intermediate connecting seat; 25. Lifting guide rod; 3. Positioning platform; 31. Fixed block; 32. Pushing block; 4. Transfer manipulator; 41. Initial transfer part; 411. Initial installation part; 412. Initial installation nozzle plate; 413. Suction nozzle; 414. Over-suction detection block; 415. Over-suction detection grating; 42. Final transfer part; 421. Final installation part; 422. Adsorption plate; 423. Pressure maintaining spring; 424. Protection detection block; 425. Protection detection grating; 43. Three-axis moving module; 44. Material taking hand; 5. X-direction moving module; 51. Supplementary moving module; 52. Lifting cylinder; 53. Compatible slider; 6. Lower connecting film part; 61. Film assisting tearing rotary cylinder; 7. Upper connecting film part; 71. Film assisting sticking cylinder; 72. Film clamping cylinder. Detailed implementation manners

[0037] The following further Figure 1-8 describes the present application in detail with reference to the attached

[0038] The embodiment of the present application discloses a battery cell pasting device.

[0039] Refer to Figure 1, the battery cell pasting equipment includes a frame 1, a material storage box 2, a positioning platform 3, a transfer manipulator 4, a lower connecting film member 6 and an upper connecting film member 7. The frame 1 is divided into an operation area 11, a feeding area 12, a positioning area 13, a film tearing area 14 and a core pasting area 15 in sequence along the horizontal direction according to different installation functions. In the operation area 11, the staff can perform the preparation work, that is, the double-sided tape can be placed into the storage component of the equipment. In the feeding area 12, the double-sided tape will be taken out from the storage component and transferred to other functional areas. In the positioning area 13, the double-sided tape will be positioned, that is, the attitude and position of the double-sided tape in the reference system where the equipment is located will be corrected. In the film tearing area 14, the lower light film of the double-sided tape will be torn off. In the core pasting area 15, the double-sided tape will be pasted on the battery cell, and at the same time, the upper light film of the double-sided tape will be torn off after the battery cell is pasted.

[0040] Refer to Figure 1 , the material storage box 2 is generally in the shape of a cuboid with a groove. One material storage box 2 can stack and accommodate multiple double-sided tapes. There are two groups of multiple material storage boxes 2 distributed vertically according to different distribution positions. Both groups of material storage boxes 2 are connected with a transverse transfer module 21. The transverse transfer module 21 transfers the material storage box 2 between the operation area 11 and the feeding area 12 by means of horizontal movement. In addition, the lower material storage box 2 is also connected with a lifting transfer module 22. The lifting transfer module 22 is connected with the transverse transfer module 21. The lifting transfer module 22 moves the material storage box 2 vertically up to the predetermined height of the feeding area 12. Generally speaking, that is, one group of material storage boxes 2 only moves horizontally between the operation area 11 and the feeding area 12, and the other group of material storage boxes 2 only moves up and down at the feeding area 12, but most of the horizontal movement is located below, so it can be considered that the two groups of material storage boxes 2 are distributed vertically. Therefore, the two groups of material storage boxes 2 will be distinguished by the upper and the lower in the follow-up.

[0041] Refer to Figure 1 and Figure 2 , the positioning platform 3 is arranged in the positioning area 13. The positioning platform 3 will correct and adjust the double-sided tape. Specifically, two fixing blocks 31 and two pushing blocks 32 are arranged for one double-sided tape on the positioning platform 3. The two fixing blocks 31 and the two pushing blocks 32 surround one double-sided tape. The fixing blocks 31 are fixedly arranged, and the two fixing blocks 31 are adjacent to each other. The pushing blocks 32 are slidably arranged through cylinders, and the two pushing blocks 32 are adjacent to each other. When performing positioning and correction, first place the double-sided tape in the middle of the two fixing blocks 31 and the two pushing blocks 32, and then the pushing blocks 32 move towards the direction close to the opposite fixing blocks 31 until the four sides of the double-sided tape are abutted against the two fixing blocks 31 and the two pushing blocks 32, so as to realize the correction of the double-sided tape in the reference system where the equipment is located.

[0042] Refer to Figure 1, the transfer robot 4 is connected to the frame 1 with three-axis movement. There are two transfer robots 4, one is the initial transfer part 41, and the other is the final transfer part 42. The initial transfer part 41 transfers the double-sided tape from the loading area 12 to the positioning area 13, and the final transfer part 42 transfers the workpiece from the positioning area 13 to the film tearing area 14 and the chip pasting area 15 in sequence; the lower film connecting part 6 is arranged at the film tearing area 14, and the lower film connecting part 6 connects the lower light film of the double-sided tape and cooperates with the final transfer part 42 to realize the peeling of the lower light film; the upper film connecting part 7 is arranged on the final transfer part 42, and the upper film connecting part 7 connects the upper light film of the double-sided tape and cooperates with the final transfer part 42 to realize the peeling of the upper light film.

[0043] Referring to Figure 1 , in summary, the gluing equipment has the following advantages. First, the two transfer robots 4 can each undertake part of the transfer work. When the positioning platform 3 is working, the initial transfer part 41 can take down a group of double-sided tapes. In this way, the processing time axes of the front and rear groups of double-sided tapes overlap, so the gluing work efficiency can be improved; second, when one group of storage boxes 2 is in the loading area 12 for loading, the other group of storage boxes 2 can be in the operation area 11 for the staff to prepare materials. Therefore, there will be no situation where there is no material available at the loading area 12 of the equipment, so the working efficiency of the gluing equipment can be improved. In addition, the two groups of storage boxes 2 are both loaded at the same height in the loading area 12. While utilizing the lower space of the equipment, the Z-direction travel of the transfer robot 4 can be shortened, and the structure of the equipment can be kept compact; third, the upper film connecting part 7 is directly arranged on the transfer robot 4, so the moving action of film tearing can be directly realized by means of the movement of the transfer robot 4. Therefore, while realizing film tearing, the structure of the gluing equipment can be simplified.

[0044] Referring to Figure 1 and Figure 3, when the taping device is working, it will process multiple double-sided tapes at the same time, that is, multiple double-sided tapes will be transferred from the loading area 12 to other functional areas such as the positioning area 13, and the number will not be just two, but may be three or even four. Taking four as an example, the arrangement directions of the four storage boxes 2 are horizontally arranged, but the arrangement direction is perpendicular to the connection direction between multiple functional areas on the frame 1. And the movement accuracy requirement of the storage box 2 between the operation area 11 and the loading area 12 is not high. Therefore, in order to achieve rapid large-batch transfer of double-sided tapes, the following settings are made. Both the transverse transfer module 21 and the lifting transfer module 22 are of cylinder structure. Among them, the pen-shaped cylinder is selected for the transverse transfer module 21, and the jacking cylinder is selected for the lifting transfer module 22. At the same time, each group of storage boxes 2 is connected with a transfer slide 23, and the transfer slide 23 is slidably connected with the frame 1. The transfer slide 23 located above is connected with the piston rod of the transverse transfer module 21, and the transfer slide 23 located below is connected with the piston rod of the lifting transfer module 22. An intermediate connection seat 24 is arranged between the lifting transfer module 22 and the transverse transfer module 21. The intermediate connection seat 24 is connected with the piston rod of the transverse transfer module 21, and the intermediate connection seat 24 is provided for the installation of the lifting transfer module 22. In this way, large-batch transfer of double-sided tapes can be realized with a simple structure.

[0045] Refer to Figure 1 and Figure 3 , since the range of multiple storage boxes 2 is much larger than the end face range of the piston rod of the lifting transfer module 22, in order to improve the lifting stability of the group of storage boxes 2 located below, the lifting guide rods 25 are slidably penetrated through the intermediate connection seat 24. A total of four lifting guide rods 25 are provided, and the four lifting guide rods 25 are distributed in a rectangular array around the lifting transfer module 22. Among them, the lifting guide rod 25 has a guide rail structure, and there will be a slide seat on the intermediate connection seat 24 that is connected with the lifting guide rod 25. In this way, the connection area between the intermediate adapter seat and the transfer slide 23 can be increased, thereby improving the lifting stability of the intermediate adapter seat.

[0046] Refer to Figure 1 and Figure 4, in this embodiment, each transfer manipulator 4 includes a three-axis moving module 43 and multiple material taking hands 44. Among them, the three-axis moving module 43 can be a three-axis gantry slide, and the material taking hand 44 will pick up materials by means of vacuum adsorption. One material taking hand 44 picks up one double-sided tape. Considering that the initial transfer part 41 only plays a simple handling role, the degree of freedom for picking up the double-sided tape should be higher. Therefore, the material taking hand 44 of the initial transfer part 41 includes an initial installation part 411, an initial mounting nozzle plate 412, a suction nozzle 413, an over-suction detection block 414, and an over-suction detection grating 415. The initial installation part 411 is connected to the three-axis moving module 43. The initial mounting nozzle plate 412 is vertically slidably connected to the initial installation part 411 through a cylindrical guide rod. The suction nozzle 413 is arranged on the initial mounting nozzle plate 412. There are four suction nozzles 413, and the four suction nozzles 413 are evenly distributed. The over-suction detection block 414 is fixedly installed on the initial mounting nozzle plate 412. The over-suction detection block 414 has a bent sheet metal structure. The end of the over-suction detection block 414 away from the initial mounting nozzle plate 412 faces the initial installation part 411. The over-suction detection grating 415 is fixed on the initial installation part 411. The over-suction detection grating 415 uses a groove-type photoelectric sensor. The over-suction detection grating 415 cooperates with the over-suction detection block 414. When the over-suction detection block 414 enters the groove of the over-suction detection grating 415, it will limit the initial mounting nozzle plate 412 from continuing to approach the initial installation part 411.

[0047] Refer to Figure 1 and Figure 4 , when picking up materials, the three-axis moving module 43 will move the material taking hand 44 downward so that the suction nozzle 413 gradually approaches the double-sided tape. After the suction nozzle 413 abuts against the double-sided tape, the double-sided tape can be taken out. However, since the double-sided tape is relatively thin and multiple double-sided tapes are stacked, if the material taking hand 44 continues to move downward after the suction nozzle 413 abuts against the topmost double-sided tape, the initial mounting nozzle plate 412 will gradually approach the initial installation part 411. During this process, the pressure of the suction nozzle 413 on the double-sided tape will gradually increase. If the pressure is too high, the double-sided tape in the lower layer will also be sucked up. Therefore, the cooperation between the over-suction detection block 414 and the over-suction detection grating 415 can be used to prevent the situation of sucking up multiple double-sided tapes.

[0048] Refer to Figure 1 and Figure 5, when performing the film tearing process in the film tearing area 14, ideally, the upper optical film and the adhesive layer should be wound upward and backward, and the lower optical film should be wound downward and backward. To be closer to this manual film tearing mode, the following settings are corresponding. First, the lower connecting film member 6 is selected to be a clamping jaw cylinder. At the same time, an assisting tearing rotating cylinder 61 is installed between the lower connecting film member 6 and the frame 1. The rotating table of the assisting tearing rotating cylinder 61 is connected with a cross beam, and multiple lower connecting film members 6 are arranged on the cross beam. One lower connecting film member 6 cooperates with the lower optical film of a double-sided adhesive. In this way, the assisting tearing rotating cylinder 61 can rotate the lower connecting film member 6, and thus apply a downward and backward torque to the lower optical film, making the tearing of the lower optical film smoother.

[0049] Refer to Figure 1 and Figure 6 , second, in order to make the upper optical film and the adhesive layer wind approximately upward and backward when tearing the lower optical film, the three-axis moving module 43 of the final transfer part 42 is optimized. Among them, in the three-axis moving module 43 of the final transfer part 42, the X-phase moving module is arranged along the distribution direction of multiple functional areas of the frame 1. Specifically, the X-direction moving module 5 is connected with a supplementary moving module 51, a lifting cylinder 52, and a compatible slider 53. The supplementary moving module 51 is fixedly installed on the frame 1. The supplementary moving module 51 is selected to be a motorized slide table. The driving direction of the supplementary moving module 51 is parallel to the driving direction of the X-direction moving module 5. The supplementary moving module 51 is rotationally connected to one end of the X-direction moving module 5 close to the loading area 12. The rotating shaft is horizontally arranged but perpendicular to the connecting line direction of multiple functional areas of the frame 1. Specifically, the supplementary moving module 51 is located below the X-direction moving module 5. The slide table of the supplementary moving module 51 is glued to the guide rail of the X-direction moving module 5, so that the X-direction moving module 5 can swing up and down, thus forming the structural basis for the required movement.

[0050] Refer to Figure 1 and Figure 6, the housing of the lifting cylinder 52 is fixedly connected to the frame 1. The lifting cylinder 52 is located below the X-direction moving module 5, and the piston rod of the lifting cylinder 52 is connected to the end of the X-direction moving module 5 away from the feeding area 12. One side of the compatible slider 53 is slidably connected to the lower side of the X-direction moving module 5, and the sliding direction is parallel to the length direction of the X-direction moving module 5. The other side of the compatible slider 53 is hinged to the piston rod of the lifting cylinder 52, and the hinge axis is horizontally arranged but perpendicular to the connection direction of multiple functional areas of the frame 1, so that the rotation of the X-direction moving module 5 is compatible with the telescopic movement of the piston rod of the lifting cylinder 52. In this way, the X-direction moving module 5 can be swung up and down by the lifting cylinder 52. At the same time, in cooperation with the supplementary moving module 51, the X-direction moving module 5 can make an obliquely upward arc movement, so that an obliquely upward torque will be applied to the upper light film and the adhesive layer. This film tearing method is closest to manual film tearing. In summary, it can not only make the peeling of the lower light film more smooth, but also make it less likely that the adhesive layer is deformed or the light film is torn off due to film tearing.

[0051] Among them, Figure 7 in it, A is the upper light film + adhesive layer, B is the lower light film, C is the movement path of the upper light film and the adhesive layer during the film tearing process, and D is the movement path of the lower light film during the film tearing process. It can be seen from the figure that the curvature of path C is not as large as that of path D. That is, in actual operation, the assisting tearing rotary cylinder 61 and the lower film connecting member 6 can be started first, and then the supplementary moving module 51 and the lifting cylinder 52 can be started. After a predetermined proportion of the lower light film is torn off, at this time, the included angle between the adhesive layer and the lower light film is large enough, and at the same time, the adhesive force applied by the adhesive layer to the lower light film is relatively small. Then the forward movement speed of the X-direction moving module 5 can also be increased later, so that sufficient power can be provided for subsequent other processes. Therefore, based on this point, referring to Figure 1 and Figure 6 , a cutting roller is rotatably arranged at the position between the film tearing area 14 and the core sticking area 15 of the frame 1. The cutting roller is horizontally rotatably arranged, and the cutting roller is adjacent to the film tearing area 14. The cutting roller is located above the lower film connecting member 6, that is, the cutting roller is located obliquely above the lower film connecting member 6. Then when the X-direction moving module 5 swings upward to complete film tearing, the double-sided tape can also pass through the cutting roller. And because it moves through the cutting roller in an arc movement, the incision treatment of the adhesive layer can be more simply realized, so that more diverse processes can be realized with fewer actions.

[0052] Referring to Figure 1 and Figure 8, considering that the final transfer unit 42 also needs to stick the double-sided tape on the battery cell, and the double-sided tape needs to be closely attached to the battery cell, so a manipulator structure capable of applying pressure is required. Therefore, the material taking hand 44 of the final transfer unit 42 includes a final installation part 421, a suction plate 422, a pressure maintaining spring 423, a protection detection block 424, and a protection detection grating 425. The final installation part 421 is connected to the three-axis moving module 43. The suction plate 422 is selected as a square suction cup. The suction block is vertically slidably connected to the final installation part 421 through a cylindrical guide rod. The pressure maintaining spring 423 is divided into connecting the final installation part 421 and the suction plate 422. The protection detection block 424 is fixedly installed on the suction plate 422. The protection detection block 424 is in the shape of a bent sheet metal. One end of the protection detection block 424 away from the suction plate 422 extends towards the final installation part 421. The protection detection grating 425 is fixedly installed on the final installation part 421. The protection detection grating 425 is selected as a groove type photoelectric sensor. When the protection detection block 424 enters the groove of the protection detection grating 425, it will limit the suction plate 422 from continuing to approach the final installation part 421.

[0053] Referring to Figure 1 and Figure 8 , while realizing material taking, the pressure maintaining spring 423 can evenly apply pressure to the double-sided tape through the suction plate 422, so that the double-sided tape is laid flat on the battery cell. At the same time, the cooperation between the protection detection block 424 and the protection detection grating 425 can prevent the material taking hand 44 from overpressing the battery cell and damaging the battery cell.

[0054] Referring to Figure 1 and Figure 8 , in order to make the double-sided tape stick to the battery cell more flatly, the following settings are corresponding. The upper film connecting member 7 includes an assisting sticking cylinder 71 and a film clamping cylinder 72. The assisting sticking cylinder 71 is connected to the final installation part 421 of the final transfer unit 42. The piston rod of the assisting sticking cylinder 71 extends horizontally. The film clamping cylinder 72 is in the structure of a clamping jaw cylinder. The housing of the film clamping cylinder 72 is connected to the piston rod of the assisting sticking cylinder 71. A hand-adjustable screw type linear slide is installed between the housing of the film clamping cylinder 72 and the piston rod of the assisting sticking cylinder 71 to accommodate the assembly error of the equipment.

[0055] Referring to Figure 1 and Figure 8 , the assisting sticking cylinder 71 can not only make the clamping end of the film clamping cylinder 72 enter and exit the area where the light film is located, but also apply a pulling force from the center of the double-sided tape outwards when the film clamping cylinder 72 clamps the light film, so that the double-sided tape is stuck to the battery cell more flatly. At the same time, two upper film connecting members 7 are provided for one material taking hand 44, and the two upper film connecting members 7 are symmetrically arranged with respect to the center of the material taking hand 44. In this way, the outward tension received by the double-sided tape can be more uniform. In addition, when the upper layer of light film is torn off later, it can be torn simultaneously from the front and back to make the peeling of the upper layer of light film smoother.

[0056] Reference Figure 6 and Figure 8 In addition, in other embodiments, if the length of the double-sided tape along the directions of multiple functional areas of the rack 1 is too long, when finally pasting the double-sided tape on the battery cell, the final transfer part 42 can paste one end of the double-sided tape on the battery cell first by swinging the X-direction moving module 5 up and down, and then paste the other end on the battery cell at the end, so that it can be pasted more smoothly, and at the same time, it can adapt to the film pasting areas with different undulating structures.

[0057] The implementation principle of a battery cell pasting device according to an embodiment of the present application is as follows: First, the two transfer manipulators 4 can each undertake part of the transfer work. When the positioning platform 3 is working, the initial transfer part 41 can take down a group of double-sided tapes. In this way, the processing time axes of the front and rear groups of double-sided tapes overlap, so the pasting work efficiency can be improved. Second, when one group of storage boxes 2 is in the loading area 12 for loading, the other group of storage boxes 2 can be in the operation area 11 for the staff to prepare materials. Therefore, there will be no situation where there is no material available in the loading area 12 of the device, so the working efficiency of the pasting device can be improved. In addition, the two groups of storage boxes 2 are both loaded at the same height in the loading area 12. While utilizing the lower space of the device, the Z-direction travel of the transfer manipulator 4 can be shortened, and thus the structure of the device can be kept compact. Third, the upper film connecting member 7 is directly arranged on the transfer manipulator 4, so the moving action of film tearing can be directly realized by means of the movement of the transfer manipulator 4. Therefore, while realizing film tearing, the structure of the pasting device can be simplified.

[0058] The above are all the preferred embodiments of the present application. The protection scope of the present application is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A core pasting device, characterized in that: Including: A frame (1), which is horizontally divided into an operation area (11), a loading area (12), a positioning area (13), a film tearing area (14), and a core pasting area (15) in sequence; Multiple storage boxes (2), which are distributed in two groups in the vertical direction. Both groups of the storage boxes (2) are connected with a transverse transfer module (21) for transferring the storage boxes (2) between the operation area (11) and the loading area (12). The storage box (2) located below is also connected with a lifting transfer module (22), and the lifting transfer module (22) is connected with the transverse transfer module (21); A positioning platform (3), which is arranged at the positioning area (13) for calibrating and adjusting the workpiece; Two transfer manipulators (4), both of which are connected to the frame (1) in a three-axis moving manner, and are divided into an initial transfer part (41) for transferring the workpiece from the loading area (12) to the positioning area (13) and a final transfer part (42) for sequentially transferring the workpiece from the positioning area (13) to the film tearing area (14) and the core pasting area (15); A lower film connecting part (6), which is arranged at the film tearing area (14); An upper film connecting part (7), which is arranged on the final transfer part (42).

2. The cell pasting device according to claim 1, characterized in that: Both the transverse transfer module (21) and the lifting transfer module (22) are of a cylinder structure; Each group of the storage boxes (2) is connected with a transfer sliding seat (23). The transfer sliding seat (23) located above is connected with the output end of the transverse transfer module (21), and the transfer sliding seat (23) located below is connected with the output end of the lifting transfer module (22). An intermediate connecting seat (24) is arranged between the lifting transfer module (22) and the transverse transfer module (21). The intermediate connecting seat (24) is connected with the output end of the transverse transfer module (21), and the intermediate connecting seat (24) is for the installation of the lifting transfer module (22).

3. The core pasting device according to claim 2, characterized in that: A lifting guide rod (25) is slidably penetrated through the intermediate connecting seat (24), and the lifting guide rod (25) is connected with the transfer sliding seat (23).

4. The core pasting device according to claim 1, wherein: One of the transfer manipulators (4) includes a three-axis moving module (43) and multiple material taking hands (44), and the material taking hands (44) take materials by vacuum adsorption.

5. The cell pasting device according to claim 4, characterized in that: The material picking hand (44) of the initial transfer part (41) includes an initial installation part (411), an initial installation nozzle plate (412), a suction nozzle (413), an over-suction detection block (414), and an over-suction detection grating (415). The initial installation part (411) is connected to the three-axis movement module (43). The initial installation nozzle plate (412) is vertically slidably connected to the initial installation part (411). The suction nozzle (413) is arranged on the initial installation nozzle plate (412). The over-suction detection block (414) is arranged on the initial installation nozzle plate (412). The over-suction detection grating (415) is arranged on the initial installation part (411). The over-suction detection grating (415) cooperates with the over-suction detection block (414) to limit the minimum distance between the initial installation nozzle plate (412) and the initial installation part (411).

6. The cell gluing device according to claim 4, wherein: The lower film connecting part (6) has a jaw cylinder structure. A film assisting rotation cylinder (61) is arranged between the lower film connecting part (6) and the machine frame (1). The film assisting rotation cylinder (61) rotatably arranges the lower film connecting part (6).

7. The cell pasting device according to claim 6, wherein: In the three-axis movement module (43) of the final transfer part (42), the X-direction movement module (5) is arranged along the distribution direction of multiple functional areas of the machine frame (1). The X-direction movement module (5) is connected with a supplementary movement module (51), a lifting cylinder (52), and a compatible slider (53). The supplementary movement module (51) is arranged on the machine frame (1). The driving direction of the supplementary movement module (51) is parallel to the driving direction of the X-direction movement module (5). The supplementary movement module (51) is rotatably connected to one end of the X-direction movement module (5) close to the feeding area (12). The housing of the lifting cylinder (52) is connected to the machine frame (1). The piston rod of the lifting cylinder (52) is connected to one end of the X-direction movement module (5) far from the feeding area (12). One side of the compatible slider (53) is slidably connected to the X-direction movement module (5), and the sliding direction is parallel to the length direction of the X-direction movement module (5). The other side of the compatible slider (53) is rotatably connected to the piston rod of the lifting cylinder (52).

8. The core pasting device according to claim 7, characterized in that: A glue cutting roller is rotatably arranged at the position between the film tearing area (14) and the chip sticking area (15) of the machine frame (1). The glue cutting roller is arranged adjacent to the film tearing area (14) and is located above the lower film connecting part (6).

9. The cell pasting device according to claim 4, wherein: The gripper (44) of the final transfer unit (42) includes a final mounting part (421), a suction plate (422), a pressure maintaining spring (423), a protection detection block (424), and a protection detection grating (425). The final mounting part (421) is connected to the three-axis moving module (43). The suction plate (422) is vertically slidably connected to the final mounting part (421). The pressure maintaining spring (423) is divided to connect the final mounting part (421) and the suction plate (422). The protection detection block (424) is arranged on the suction plate (422). The protection detection grating (425) is arranged on the final mounting part (421). The protection detection grating (425) cooperates with the protection detection block (424) to limit the minimum distance between the suction plate (422) and the final mounting part (421).

10. The core pasting device according to claim 4, characterized in that: The upper film connecting member (7) includes an assisting pasting cylinder (71) and a film clamping cylinder (72). The assisting pasting cylinder (71) is connected to the final transfer unit (42), and the piston rod of the assisting pasting cylinder (71) is horizontally telescopic. The housing of the film clamping cylinder (72) is connected to the piston rod of the assisting pasting cylinder (71), and the film clamping cylinder (72) is of a jaw cylinder structure. Two of the upper film connecting members (7) are arranged on one gripper (44), and the two upper film connecting members (7) are symmetrically arranged with respect to the center of the gripper (44).

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