Battery film separating device and separating method thereof

Abstract

The invention relates to the technical field of battery assembly, in particular to a battery film separating device and a separating method thereof. The film transfer mechanism is used for conveying the whole film to the output end of the film transfer mechanism; the glue distributing servo gripper mechanism and the lower glue distributing variable-pitch mechanism are of an up-down split structure, the glue distributing servo gripper mechanism is installed on the mechanical arm, the lower glue distributing variable-pitch mechanism is installed at the output end of the glue sheet operating mechanism, and the glue distributing servo gripper mechanism is located above the output end of the glue sheet operating mechanism. And the separated strip glue is adhered to the outer surface of the corresponding side edge of the battery pack through the glue separation servo gripper mechanism. Each strip of the whole film is separated according to the required distance; the glue distribution servo gripper mechanism is matched with the lower glue distribution variable pitch mechanism to directly distribute glue, then the glue distribution servo gripper mechanism directly grabs strip glue and finally adheres the strip glue to the outer surface of a single battery, the transfer step of the strip glue is reduced, the automatic glue cleaning mechanism conducts glue cleaning on a conveying belt, the working efficiency is improved, and the glue distribution stability is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of battery assembly, in particular to a battery film separation device and a separation method thereof. Background Art

[0002] The battery pack is made up of several stacked cells, so glue (strip glue) must be applied to the outer surface of the cells to fix the cells together. The existing battery film is a whole piece cut into strips, with release paper on both sides of the battery film. When using, tear off the release paper on both sides, separate the glue strips that are bonded together, and apply them to the outer surface of the cell.

[0003] At present, the glue dispensing mechanism on the market places the film on a platform with a fixed position. A glue dispensing device is arranged on the platform. The glue dispensing device has a complex structure and the glue dispensing device needs to go through processes such as variable distance glue dispensing, glue placing, and glue taking, and finally is pasted on the outer surface of the single battery. The structure is complex and the glue needs to be transported for many times. The stability is not high and the debugging and maintenance are difficult, which affects the production efficiency.

[0004] Since the film is very sticky, especially the higher the temperature, the stickier it becomes. In addition, the existing glue separation mechanisms do not have the function of automatic glue cleaning, and there is residual glue. The residual glue will appear biased and crooked during the glue separation process, affecting the accuracy and stability of the glue separation. Therefore, the equipment needs to be cleaned and maintained frequently, resulting in frequent equipment maintenance. Currently, manual cleaning is generally performed by shutting down the machine or replacing spare parts.

[0005] In view of the problems existing in the above traditional glue dispensing mechanism, a new glue dispensing device with automatic glue cleaning function has been specially developed. Summary of the invention

[0006] The technical problem to be solved by the present invention is: in order to solve the problems existing in the prior art in the above-mentioned background technology, a battery film glue separation device and its separation method are provided, which reduce the transfer steps of strip glue, have high working efficiency and high stability, and can clear the glue at the same time to ensure the stability of the equipment's glue separation.

[0007] The technical solution adopted by the present invention to solve the technical problem is: a battery film dispensing device, comprising a film running mechanism for placing the film and conveying the whole film to the output end of the film running mechanism;

[0008] The glue dispensing mechanism includes a glue dispensing servo gripper mechanism and a lower glue dispensing distance-changing mechanism. The glue dispensing servo gripper mechanism and the lower glue dispensing distance-changing mechanism are upper and lower split structures. The glue dispensing servo gripper mechanism is installed on the manipulator, and the lower glue dispensing distance-changing mechanism is installed at the output end of the film running mechanism. The glue dispensing servo gripper mechanism is located above the output end of the film running mechanism, and is used for performing distance-changing glue dispensing on the entire film, and the glue dispensing strips are pasted to the outer surface of the corresponding side of the battery pack through the glue dispensing servo gripper mechanism.

[0009] Furthermore, the glue dispensing servo gripper mechanism includes a mounting plate with a clearance hole, a servo motor and a forward and reverse screw are mounted on the upper plate surface of the mounting plate, the servo motor drives the forward and reverse screw to rotate forward and reverse, a plurality of connecting seats are mounted on the forward and reverse screw, a plurality of glue dispensing gripper mounting plates are connected below each connecting seat, a gripper mounting seat is mounted on each glue dispensing gripper mounting plate, and a gripper is mounted on each gripper mounting seat;

[0010] A slide rail assembly is arranged on the upper surface of the lower plate of the mounting plate along the conveying direction. The glue dispensing gripper mounting plate is connected to the slider in the slide rail assembly, driving the glue dispensing gripper mounting plate to be installed with a variable distance assembly along the slide rail assembly. A gripper lifting assembly is installed on each glue dispensing gripper mounting plate, and the protruding end of the gripper lifting assembly is connected to the gripper mounting seat to drive the gripper lifting assembly to rise and fall.

[0011] Furthermore, the pitch-changing assembly includes a pitch-changing drive and a pitch-changing screw rod, on which two glue-dividing gripper mounting plates on the same side are passed, and the pitch-changing drive is connected to the pitch-changing screw rod to drive the two glue-dividing gripper mounting plates installed on the pitch-changing screw rod to close or separate.

[0012] Furthermore, a plurality of vacuum holes are provided on the plate surface of the gripper, the vacuum holes are connected to the vacuum generator, and positioning holes are provided at both ends of the gripper.

[0013] Furthermore, the lower rubber-dividing pitch-changing mechanism comprises a bracket, a lifting mechanism is installed on the plate surface of the bracket, a guide rail mounting plate is installed on the protruding end of the lifting mechanism, a plurality of guide rails are installed on the guide rail mounting plate, and a follower lower pitch-changing seat sliding thereon is installed on the guide rail;

[0014] The follow-up lower distance variable seat includes a plurality of lifting teeth corresponding to the number of grippers in the glue dispensing servo gripper mechanism and a plurality of sliders installed on each guide rail. A lifting tooth is installed on the sliders on the left and right sides of the front and rear end guide rails, and a lifting tooth is installed on the sliders on the left and right sides of the two middle guide rails. The front and rear ends of each lifting tooth are provided with pin shafts that cooperate with the positioning holes in the glue dispensing servo gripper mechanism.

[0015] Furthermore, a glue pressing assembly is installed on the bracket, and the glue pressing assembly includes a glue pressing bracket, a glue pressing cylinder is installed on the glue pressing bracket, a fixed glue dispensing plate is installed on the protruding end of the glue pressing cylinder, and an optical fiber sensor is installed on the fixed glue dispensing plate.

[0016] Furthermore, a push cylinder is installed on one side of the guide rail mounting plate, and a limit piece is installed on the other end of the guide rail mounting plate to reset the lifting gear.

[0017] Furthermore, the film running mechanism includes a conveying bracket and a running drive assembly, the input end and the output end of the conveying bracket are both equipped with supporting roller groups, a transmission roller group is installed below the conveying bracket, a conveyor belt is sleeved between the two supporting roller groups and the transmission roller group, the film is placed on the conveyor belt, and the output end of the running drive assembly is connected to the transmission roller group to drive the conveyor belt to drive the film to the output end of the conveying bracket.

[0018] Furthermore, it also includes an automatic glue cleaning mechanism installed at the input end of the film running mechanism to clean the residual glue on the conveyor belt in the film running mechanism;

[0019] The automatic glue cleaning mechanism comprises a mounting seat and a glue cleaning motor, a glue cleaning unwinding device and a glue cleaning winding device are respectively installed at both ends of the side plate of the mounting seat, the output end of the glue cleaning motor is connected to the glue cleaning winding device, and the glue cleaning unwinding device and the glue cleaning winding device are connected through a transmission belt;

[0020] A glue cleaning mode switching device is installed on the bottom plate of the mounting seat, and the glue cleaning mode switching device is located between the glue cleaning unwinding device and the glue cleaning winding device, and the glue cleaning mode switching device is located just below the conveyor belt in the film running mechanism.

[0021] Furthermore, the glue cleaning mode switching device includes a second lifting cylinder, a lifting plate is installed on the protruding end of the second lifting cylinder, and a plurality of glue cleaning guide components are installed side by side on the lifting plate.

[0022] Furthermore, the glue cleaning guide assembly includes a glue cleaning guide wheel mounting seat, a glue cleaning guide wheel is mounted on the glue cleaning guide wheel mounting seat, and a spring member and a guide column are installed between the glue cleaning guide wheel mounting seat and the lifting plate.

[0023] A separation method of a battery film glue separation device includes the battery film glue separation device described above, and the specific steps are as follows:

[0024] Step 1: Glue separation:

[0025] Step 1.1: In the initial state, the gripper in the glue dispensing servo gripper mechanism and the lifting teeth in the lower glue dispensing distance changing mechanism are both in a closed state;

[0026] Tear off the release paper on both sides of the film and place it on the conveyor belt. Operate the drive assembly to drive the conveyor belt to convey the film toward the conveying end of the conveying bracket. At this time, the rightmost strip of film is located above the lifting tooth.

[0027] Step 1.2: The gripper lifting assembly drives the gripper to descend, and the grippers are respectively inserted into the pins on the corresponding lifting teeth, thereby completing the clamping of the strip rubber. At this time, the film is divided into the film to be separated and the film to be changed in distance;

[0028] Step 1.3: The glue pressing cylinder moves, driving the fixed glue pressing plate to press down, and the fixed glue pressing plate presses the glue sheet to be glued;

[0029] Step 1.4: The lifting mechanism performs an ascending action, driving the clamped film to be changed in pitch to move upward, so that the clamped film to be changed in pitch is separated from the film to be separated;

[0030] Step 1.5: The servo motor works to drive the forward and reverse screws to rotate, and the connecting seats installed on the forward and reverse screws move in opposite directions to complete the first pitch change, thus obtaining the left and right sets of first pitch change gripper groups;

[0031] Step 1.6: The variable pitch driving member on the left side moves, pulling the left dispensing gripper mounting plate of the first variable pitch gripper group on the left side to change the pitch to the left;

[0032] The right pitch-changing drive member moves, pulling the right glue-dispensing gripper mounting plate of the first pitch-changing gripper group on the right to change the pitch to the right, completing the second pitch change, thereby completing all the pitch-changing separation of the film to be pitch-changed;

[0033] During the pitch change process, since the following lower pitch change seat is installed on the guide rail, when the glue dispensing servo gripper mechanism performs the first and second pitch changes, each lifting tooth in the following lower margin seat also moves simultaneously;

[0034] Step 1.7: The lifting mechanism descends and returns to the initial position, and each rubber strip in the variable-pitch film is respectively adsorbed by the corresponding gripper. At the same time, the push cylinder is activated to push the lifting teeth after the variable pitch together to complete the reset of the lifting teeth;

[0035] Step 1.8: The robot drives the glue dispensing servo gripper mechanism to move to the workstation of the single cell, and the corresponding gripper lifting assembly moves, driving the corresponding glue strip on the gripper to be attached to the two sides of the single cell to be bonded, and glue is dispensed once, completing the bonding of two single cells, and repeating this process;

[0036] Step 2: Clear glue.

[0037] Further, the specific steps of step 2 of clearing the glue are as follows:

[0038] Step 2.1: There is unused clearing film on the clearing unwinding device, and the clearing film rewinding device rewinds the used clearing film. The automatic clearing mechanism is started regularly according to the production cycle and the viscosity of the film;

[0039] When it is necessary to clean the glue, the cleaning mode switching device rises, and the cleaning glue roll is close to the conveyor belt. At this time, the operation drive component drives the conveyor belt to operate, and the cleaning glue motor starts, driving the cleaning glue rewinding device to rewind the material, thereby driving the cleaning glue unwinding device to unwind the material at the same time, and finally completing the cleaning of the residual glue on the conveyor belt;

[0040] Step 2.2: After the glue cleaning is completed, the glue cleaning mode switching device descends, the glue cleaning motor stops, and waits for the next glue cleaning.

[0041] Beneficial effects of the present invention:

[0042] 1. The present invention separates each rubber strip of the whole film according to the required spacing, and separates four rubber strips at a time; the rubber separation servo gripper mechanism cooperates with the lower rubber separation distance variable mechanism to directly separate the film, and then the rubber separation servo gripper mechanism directly grabs the rubber strips, and finally sticks them on the outer surface of the single cell, thereby reducing the transfer steps of the rubber strips, with high working efficiency and stability, simple structure, few parts, easy maintenance and low cost;

[0043] 2. The glue dispensing servo gripper mechanism adopts a servo motor to change the distance of glue dispensing, which greatly improves the distance change accuracy, has good compatibility, is easy to adjust, meets different glue dispensing distance requirements, and improves production efficiency;

[0044] 3. The lower glue-dispensing variable distance structure has low processing requirements, good stability, open structure and easy maintenance;

[0045] 4. An automatic glue cleaning mechanism is equipped to clean the glue on the conveyor belt in the film running mechanism. It has a simple structure and does not require stopping the machine for manual glue cleaning or replacing spare parts, which greatly improves work efficiency and ensures the stability of glue separation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0047] Figure 1 It is a schematic diagram of the structure of the present invention;

[0048] Figure 2 The present invention Figure 1 A schematic diagram of the structure in another direction;

[0049] Figure 3 A schematic structural diagram of the glue dispensing servo gripper mechanism of the present invention;

[0050] Figure 4 The present invention Figure 3 A schematic diagram of the structure in another direction;

[0051] Figure 5 The present invention Figure 3 Bottom view of

[0052] Figure 6 A schematic structural diagram of the lower glue-splitting and distance-changing mechanism of the present invention;

[0053] Figure 7 The present invention Figure 6 Exploded diagram of

[0054] Figure 8A structural schematic diagram of the film running mechanism of the present invention;

[0055] Fig. 9 The present invention Figure 8 A schematic diagram of the structure in another direction;

[0056] Fig.10 The structural diagram of the invented automatic glue cleaning mechanism;

[0057] Fig.11 A schematic diagram of the structure of the invented glue cleaning mode switching device;

[0058] In the figure: 1. Film running mechanism, 11. Conveying bracket, 12. Support roller group, 13. Running drive assembly, 14. Transmission roller group, 15. Conveying belt,

[0059] 2. Glue dispensing servo gripper mechanism, 21. Mounting plate, 22. Servo motor, 23. Forward and reverse screw, 24. Connecting seat, 25. Gripper, 26. Glue dispensing gripper mounting plate, 27. Gripper mounting seat, 28. Gripper lifting assembly, 29. Variable pitch drive, 210. Variable pitch screw, 211. Photoelectric switch, 212. Induction block, 213. Connecting seat, 214. Vacuum hole, 215. Positioning hole,

[0060] 3. Lower glue dispensing distance changing mechanism, 31. Bracket, 32. Lifting mechanism, 33. Guide rail mounting plate, 34. Lifting gear, 35. Guide rail, 36. Slider, 37. Pin, 38. Glue pressing bracket, 39. Glue pressing cylinder, 310. Fixed glue dispensing plate, 311. Optical fiber sensor, 312. Pushing cylinder, 313. Limiting piece,

[0061] 4. Automatic glue cleaning mechanism, 41. Mounting seat, 42. Glue cleaning unwinding device, 43. Glue cleaning rewinding device, 44. Glue cleaning mode switching device, 441. Second lifting cylinder, 442. Lifting plate, 443. Glue cleaning guide assembly, 4431. Glue cleaning guide wheel mounting seat, 4432. Glue cleaning guide wheel, 4433. Spring member, 4434. Guide column, 45. Glue cleaning motor. DETAILED DESCRIPTION

[0062] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0063] like Figures 1 to 11 A battery film dispensing device is shown, comprising

[0064] The film transport mechanism 1 is used to place the film and transport the whole film to the output end of the film transport mechanism 1;

[0065] The glue dispensing mechanism comprises a glue dispensing servo gripper mechanism 2 and a lower glue dispensing distance-changing mechanism 3. The glue dispensing servo gripper mechanism 2 and the lower glue dispensing distance-changing mechanism 3 are upper and lower split structures. The glue dispensing servo gripper mechanism 2 is installed on the manipulator, and the lower glue dispensing distance-changing mechanism 3 is installed at the output end of the film running mechanism 1. The glue dispensing servo gripper mechanism 2 is located above the output end of the film running mechanism 1, and is used for performing distance-changing glue dispensing on the entire film, and the glue dispensing strips are pasted to the outer surface of the corresponding side of the battery pack through the glue dispensing servo gripper mechanism 2.

[0066] like Figures 3 to 5 As shown, the glue dispensing servo gripper mechanism 2 includes a mounting plate 21 with a clearance hole, a servo motor 22 and a forward and reverse screw rod 23 are mounted on the upper plate surface of the mounting plate 21, the servo motor 22 drives the forward and reverse screw rod 23 to rotate forward and reverse, a plurality of connecting seats 24 are mounted on the forward and reverse screw rod 23, a plurality of glue dispensing gripper mounting plates 26 are connected below each connecting seat 24, a gripper mounting seat 27 is mounted on each glue dispensing gripper mounting plate 26, and a gripper 25 is mounted on each gripper mounting seat 27;

[0067] A slide rail assembly is provided on the lower plate surface of the mounting plate 21 along the conveying direction, and the glue dispensing gripper mounting plate 26 is connected to the slider in the slide rail assembly, driving the glue dispensing gripper mounting plate 26 to slide along the slide rail assembly;

[0068] A variable distance assembly is installed between the two glue dispensing gripper mounting plates 26 on the same side. A gripper lifting assembly 28 is installed on each glue dispensing gripper mounting plate 26. The protruding end of the gripper lifting assembly 28 is connected to the gripper mounting seat 27 to drive the gripper lifting assembly 28 to rise and fall.

[0069] like Figure 5 As shown, the pitch-changing assembly includes a pitch-changing drive member 29 and a pitch-changing screw rod 210, on which two glue-dividing gripper mounting plates 26 are passed through. The pitch-changing screw rod 210 is connected to the pitch-changing screw rod 210 to drive the two glue-dividing gripper mounting plates 26 mounted on the pitch-changing screw rod 210 to close or separate.

[0070] A limiting column is installed between the glue dispensing gripper mounting plate 26 and the gripper mounting plate 27, a photoelectric switch 211 is installed on the outer wall of the mounting plate 21, a sensing block 212 cooperating with the photoelectric switch 211 is installed on the glue dispensing gripper mounting plate 26, and a connecting seat 213 connected to the robot is also installed on the upper plate surface of the mounting plate 21.

[0071] like Figure 5As shown, a plurality of vacuum holes 214 are provided on the plate surface of the gripper 25, and the vacuum holes 214 are connected to the vacuum generator. Therefore, the gripper 25 is a vacuum gripper, and the strip rubber is adsorbed on the gripper 25 by vacuum after the lifting mechanism 32 is lowered. Positioning holes 215 are provided at both ends of the gripper 25.

[0072] like Figures 6-7 As shown, the lower glue-splitting pitch-changing mechanism 3 comprises a bracket 31, a lifting mechanism 32 is mounted on the plate surface of the bracket 31, a guide rail mounting plate 33 is mounted on the protruding end of the lifting mechanism 32, a plurality of guide rails 35 are mounted on the guide rail mounting plate 33, and a follower lower pitch-changing seat sliding thereon is mounted on the guide rail 35;

[0073] The follow-up lower distance variable seat includes a plurality of lifting teeth 34 corresponding to the number of grippers 25 in the glue dispensing servo gripper mechanism 2 and a plurality of sliders 36 installed on each guide rail 35. A lifting tooth 34 is installed on the sliders 36 on the left and right sides of the front and rear end guide rails 35, and a lifting tooth 34 is installed on the sliders 36 on the left and right sides of the two middle guide rails. The front and rear ends of each lifting tooth 34 are provided with a pin shaft 37 that cooperates with the positioning hole 215 in the glue dispensing servo gripper mechanism 2.

[0074] like Figures 6-7 As shown, a glue pressing assembly is also installed on the bracket 31 to apply downward pressure to the film to be separated, so that the lifting mechanism 32 can lift the film to be changed in distance and separate it from the whole film. The glue pressing assembly includes a glue pressing bracket 38, and a glue pressing cylinder 39 is installed on the glue pressing bracket 38. A fixed glue separation plate 310 is installed on the protruding end of the glue pressing cylinder 39, and an optical fiber sensor 311 is installed on the fixed glue separation plate 310.

[0075] like Figures 6-7 As shown, a push cylinder 312 is installed on one side of the guide rail mounting plate 33, and a limit member 313 is installed on the other end of the guide rail mounting plate 33 to reset the lifting tooth 34 to the initial position.

[0076] like Figures 8-9 As shown, the film running mechanism 1 includes a conveying bracket 11 and a running drive assembly 13, the input end and the output end of the conveying bracket 11 are both equipped with a supporting roller group 12, a driving roller group 14 is installed below the conveying bracket 11, a conveyor belt 15 is sleeved between the two supporting roller groups 12 and the driving roller group 14, and the film is placed on the conveyor belt 15, and the output end of the running drive assembly 13 is connected to the driving roller group 14 to drive the conveyor belt 15 to drive the film to the output end of the conveying bracket 11.

[0077] like Figures 10-11 As shown, it also includes an automatic glue cleaning mechanism 4, which is installed at the input end of the film running mechanism 1 and is used to clean the residual glue on the conveyor belt 15 in the film running mechanism 1;

[0078] The automatic glue cleaning mechanism 4 includes a mounting seat 41 and a glue cleaning motor 45. The two ends of the side plate of the mounting seat 41 are respectively installed with a glue cleaning unwinding device 42 and a glue cleaning winding device 43. The output end of the glue cleaning motor 45 is connected to the glue cleaning winding device 43. The glue cleaning unwinding device 42 and the glue cleaning winding device 43 are connected through a transmission belt.

[0079] A glue cleaning mode switching device 44 is installed on the bottom plate of the mounting seat 41 . The glue cleaning mode switching device 44 is located between the glue cleaning unwinding device 42 and the glue cleaning rewinding device 43 . The glue cleaning mode switching device 44 is located directly below the conveyor belt 15 in the film running mechanism 1 .

[0080] like Fig.11 As shown, the glue cleaning mode switching device 44 includes a second lifting cylinder 441 , a lifting plate 442 is installed at the protruding end of the second lifting cylinder 441 , and a plurality of glue cleaning guide components 443 are installed side by side on the lifting plate 442 .

[0081] like Fig.11 As shown, the glue cleaning guide assembly 443 includes a glue cleaning guide wheel mounting seat 4431, on which a glue cleaning guide wheel 4432 is mounted, and a spring member 4433 and a guide column 4434 are installed between the glue cleaning guide wheel mounting seat 4431 and the lifting plate 442. The spring member 4433 not only supports the glue cleaning guide wheel mounting seat 4431, but also enables the glue cleaning guide wheel mounting seat 4431 to have a certain buffer zone to prevent hard contact with the conveyor belt 15 during the glue cleaning process.

[0082] A separation method of a battery film glue separation device, comprising any of the above-mentioned battery film glue separation devices, and the specific steps are as follows:

[0083] Step 1: Glue separation:

[0084] Step 1.1: In the initial state, the four grippers 25 in the glue-dispensing servo gripper mechanism 2 and the four lifting teeth 34 in the lower glue-dispensing distance-changing mechanism 3 are all in a closed state;

[0085] Tear off the release paper on both sides of the film and place it on the conveyor belt 15. The driving assembly 13 drives the conveyor belt 15 to convey the film toward the conveying end of the conveying bracket 11. At this time, the rightmost four strips of film are located above the four lifting teeth 34.

[0086] Step 1.2: The gripper lifting assembly 28 drives the gripper 25 to descend, and the positioning holes 215 on the four grippers 25 in the glue-splitting servo gripper mechanism 2 are respectively inserted into the pins 37 on the four lifting teeth 34 in the lower glue-splitting and pitch-changing mechanism 3, thereby completing the clamping of the four glue strips. At this time, the film is divided into the film to be glued and the film to be pitch-changed;

[0087] Step 1.3: The glue pressing cylinder 39 is actuated to drive the fixed glue dispensing pressing plate 310 to press downward, and the fixed glue dispensing pressing plate 310 presses the glue sheet to be dispensed (that is, at least the fifth glue strip is pressed by the fixed glue dispensing pressing plate mechanism);

[0088] Step 1.4: The lifting mechanism 32 performs an ascending action, driving the clamped film to be changed in distance (4 strips of rubber) to move upward, so that the clamped film to be changed in distance (4 strips of rubber) is separated from the film to be separated;

[0089] Step 1.5: The servo motor 22 works to drive the forward and reverse screw rods 23 to rotate, and the connecting seat 24 installed on the forward and reverse screw rods 23 moves in opposite directions to complete the first pitch change (that is, to separate from the middle, dividing the four rubber strips into two), and obtaining two left and right groups of first pitch change gripper groups;

[0090] Step 1.6: The left variable pitch driving member 29 is actuated to pull the left glue dispensing gripper mounting plate 26 of the left first variable pitch gripper group to change the pitch to the left;

[0091] The right pitch-changing driving member 29 is actuated to pull the right side glue-dispensing gripper mounting plate 26 of the first right pitch-changing gripper group to change the pitch to the right, thus completing the second pitch-changing, thereby completing the pitch-changing separation of all the glue strips (4 glue strips) to be pitch-changed;

[0092] During the pitch change process, since the following lower pitch change seat is installed on the guide rail 35, when the glue dispensing servo gripper mechanism 2 performs the first and second pitch changes, each lifting tooth 34 in the following lower margin seat also moves simultaneously;

[0093] Step 1.7: The lifting mechanism 32 descends and returns to the initial position, and each rubber strip in the variable-pitch film is respectively adsorbed by the corresponding gripper 25. At the same time, the push cylinder 312 is actuated to push the pitch-varied lifting teeth 34 together, thereby completing the reset of the lifting teeth 34.

[0094] Step 1.8: The manipulator drives the glue dispensing servo gripper mechanism 2 to move to the workstation of the single cell, and the corresponding gripper lifting assembly 28 moves, driving the corresponding gripper 25 to stick the glue strips on the two sides of the single cell to be bonded (for example, when the battery is a rectangular parallelepiped, a long glue strip is selected, so that 4 glue strips can be glued to both sides of 2 single cells), and glue is dispensed once to complete the bonding of 2 single cells, and this cycle repeats;

[0095] When gluing the short side of a single battery, repeat the above steps and replace the long glue sheet with the short glue sheet.

[0096] Step 2: Clear glue:

[0097] Step 2.1: The unused clear glue roll (commercially available) is rolled on the clear glue unwinding device 42, and the clear glue rewinding device 43 rewinds the used clear glue roll. The automatic clear glue mechanism 4 is started regularly according to the production cycle, the viscosity of the film, etc.;

[0098] When it is necessary to clean the glue, the cleaning mode switching device 44 rises, and the cleaning glue roll is in close contact with the conveyor belt 15. At this time, while the operation drive assembly 13 drives the conveyor belt 15 to operate, the cleaning glue motor 45 starts, driving the cleaning glue reeling device 43 to reel in the material, thereby driving the cleaning glue unwinding device 42 to unwind the material at the same time, and finally completing the cleaning of the residual glue on the conveyor belt 15;

[0099] Step 2.2: After the glue cleaning is completed, the glue cleaning mode switching device 44 descends, and the glue cleaning motor 45 stops, waiting for the next glue cleaning.

[0100] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A battery film dispensing device, characterized in that: include A film transport mechanism (1) is used to place film and transport the entire film to the output end of the film transport mechanism (1); The glue dispensing mechanism comprises a glue dispensing servo gripper mechanism (2) and a lower glue dispensing distance-changing mechanism (3). The glue dispensing servo gripper mechanism (2) and the lower glue dispensing distance-changing mechanism (3) are upper and lower split structures. The glue dispensing servo gripper mechanism (2) is mounted on a manipulator, and the lower glue dispensing distance-changing mechanism (3) is mounted on the output end of a film running mechanism (1). The glue dispensing servo gripper mechanism (2) is located above the output end of the film running mechanism (1) and is used for performing distance-changing glue dispensing on a whole film, and the glue dispensing servo gripper mechanism (2) adheres the glued strips to the outer surface of the corresponding side of the battery pack after dispensing.

2. A battery film dispensing device according to claim 1, characterized in that: The glue dispensing servo gripper mechanism (2) comprises a mounting plate (21) having a clearance hole, a servo motor (22) and a forward and reverse screw rod (23) being mounted on the upper plate surface of the mounting plate (21), the servo motor (22) driving the forward and reverse screw rod (23) to rotate forward and reverse, a plurality of connecting seats (24) being mounted on the forward and reverse screw rod (23), a plurality of glue dispensing gripper mounting plates (26) being connected below each connecting seat (24), a gripper mounting seat (27) being mounted on each glue dispensing gripper mounting plate (26), and a gripper (25) being mounted on each gripper mounting seat (27); A slide rail assembly is provided on the lower plate surface of the mounting plate (21) along the conveying direction, and the glue dispensing gripper mounting plate (26) is connected to a slider in the slide rail assembly to drive the glue dispensing gripper mounting plate (26) to slide along the slide rail assembly (; A variable distance assembly is installed between the two glue dispensing gripper mounting plates (26) on the same side, and a gripper lifting assembly (28) is installed on each glue dispensing gripper mounting plate (26). The extended end of the gripper lifting assembly (28) is connected to the gripper mounting seat (27) to drive the gripper lifting assembly (28) to rise and fall.

3. A battery film dispensing device according to claim 2, characterized in that: The variable pitch assembly comprises a variable pitch drive member (29) and a variable pitch screw (210), wherein the variable pitch screw (210) is provided with two glue-split gripper mounting plates (26) on the same side, and the variable pitch drive member (29) is connected to the variable pitch screw (210) to drive the two glue-split gripper mounting plates (26) mounted on the variable pitch screw (210) to close or separate.

4. A battery film dispensing device according to claim 2, characterized in that: A plurality of vacuum holes (214) are provided on the plate surface of the gripper (25), the vacuum holes (214) are connected to a vacuum generator, and positioning holes (215) are provided at both ends of the gripper (25).

5. A battery film dispensing device according to claim 1, characterized in that: The lower glue-distributing pitch-changing mechanism (3) comprises a bracket (31), a lifting mechanism (32) is mounted on the plate surface of the bracket (31), a guide rail mounting plate (33) is mounted on the protruding end of the lifting mechanism (32), a plurality of guide rails (35) are mounted on the guide rail mounting plate (33), and a follower lower pitch-changing seat is mounted on the guide rail (35) to slide thereon; The follow-up lower variable distance seat comprises a plurality of lifting teeth (34) corresponding to the number of grippers (25) in the glue dispensing servo gripper mechanism (2) and a plurality of sliders (36) mounted on each guide rail (35), wherein a lifting tooth (34) is mounted on the sliders (36) on the left and right sides of the front and rear end guide rails (35), and a lifting tooth (34) is mounted on the sliders (36) on the left and right sides of the two middle guide rails, and a pin shaft (37) is provided at the front and rear ends of each lifting tooth (34) to cooperate with the positioning hole (215) in the glue dispensing servo gripper mechanism (2).

6. A battery film dispensing device according to claim 5, characterized in that: The bracket (31) is also equipped with a glue pressing assembly, which includes a glue pressing bracket (38), a glue pressing cylinder (39) is installed on the glue pressing bracket (38), a fixed glue dispensing plate (310) is installed on the extended end of the glue dispensing cylinder (39), and an optical fiber sensor (311) is installed on the fixed glue dispensing plate (310).

7. A battery film dispensing device according to claim 5, characterized in that: A material pushing cylinder (312) is installed on one side of the guide rail mounting plate (33), and a limiting member (313) is installed on the other end of the guide rail mounting plate (33) for resetting the lifting gear (34).

8. A battery film dispensing device according to claim 1, characterized in that: The film running mechanism (1) comprises a conveying bracket (11) and a running drive assembly (13), wherein the input end and the output end of the conveying bracket (11) are both provided with a supporting roller group (12), a driving roller group (14) is provided below the conveying bracket (11), a conveying belt (15) is sleeved between the two supporting roller groups (12) and the driving roller group (14), and the film is placed on the conveying belt (15), and the output end of the running drive assembly (13) is connected to the driving roller group (14) to drive the conveying belt (15) to drive the film to the output end of the conveying bracket (11).

9. A battery film dispensing device according to claim 1, characterized in that: It also includes an automatic glue cleaning mechanism (4) installed at the input end of the film running mechanism (1) and used to clean the residual glue on the conveyor belt (15) in the film running mechanism (1); The automatic glue cleaning mechanism (4) comprises a mounting seat (41) and a glue cleaning motor (45), a glue cleaning unwinding device (42) and a glue cleaning rewinding device (43) are respectively mounted on two ends of a side plate of the mounting seat (41), an output end of the glue cleaning motor (45) is connected to the glue cleaning rewinding device (43), and the glue cleaning unwinding device (42) and the glue cleaning rewinding device (43) are connected via a transmission belt; A glue cleaning mode switching device (44) is installed on the bottom plate of the mounting seat (41). The glue cleaning mode switching device (44) is located between the glue cleaning unwinding device (42) and the glue cleaning rewinding device (43). The glue cleaning mode switching device (44) is located directly below the conveyor belt (15) in the film running mechanism (1).

10. A battery film dispensing device according to claim 9, characterized in that: The glue cleaning mode switching device (44) comprises a second lifting cylinder (441), a lifting plate (442) is installed at the protruding end of the second lifting cylinder (441), and a plurality of glue cleaning guide components (443) are installed side by side on the lifting plate (442).

11. A battery film glue dispensing device according to claim 10, characterized in that: The glue cleaning guide assembly (443) comprises a glue cleaning guide wheel mounting seat (4431), a glue cleaning guide wheel (4432) is mounted on the glue cleaning guide wheel mounting seat (4431), and a spring member (4433) and a guide column (4434) are mounted between the glue cleaning guide wheel mounting seat (4431) and the lifting plate (442).

12. A separation method for a battery film separation device, characterized in that: The invention comprises a battery film dispensing device as claimed in any one of claims 1 to 11, wherein the specific steps are as follows: Step 1: Glue separation: Step 1.1: In the initial state, the gripper (25) in the glue dispensing servo gripper mechanism (2) and the lifting teeth (34) in the lower glue dispensing distance changing mechanism (3) are both in a closed state; Tear off the release paper on both sides of the film and place it on the conveyor belt (15), operate the drive assembly (13) to drive the conveyor belt (15) to convey the film toward the conveying end of the conveying bracket (11), at this time, the rightmost strip of film is located above the lifting tooth (34); Step 1.2: The gripper lifting assembly (28) drives the gripper (25) to descend, and the gripper (25) is respectively inserted into the pins (37) on the corresponding lifting teeth (34), thereby completing the clamping of the rubber strip. At this time, the film is divided into the film to be separated and the film to be changed in distance; Step 1.3: The glue pressing cylinder (39) is activated to drive the fixed glue dispensing pressing plate (310) to press downward, and the fixed glue dispensing pressing plate (310) presses the glue sheet to be dispensed; Step 1.4: the lifting mechanism (32) performs a lifting action to drive the clamped film to be changed in pitch to move upward, so that the clamped film to be changed in pitch is separated from the film to be separated; Step 1.5: The servo motor (22) works to drive the forward and reverse screw rods (23) to rotate, and the connecting seat (24) installed on the forward and reverse screw rods (23) moves in opposite directions to complete the first pitch change, thereby obtaining two left and right groups of first pitch change gripper groups; Step 1.6: The left variable pitch driving member (29) is actuated to pull the left dispensing gripper mounting plate (26) of the left first variable pitch gripper group to change the pitch to the left; The right pitch-changing driving member (29) is actuated to pull the right glue-dispensing gripper mounting plate (26) of the right first pitch-changing gripper group to change pitch to the right, thus completing the second pitch-changing, thereby completing all the pitch-changing separation of the film to be pitch-changed; During the pitch change process, since the follower lower pitch change seat is installed on the guide rail (35), when the glue dispensing servo gripper mechanism (2) performs the first and second pitch changes, each lifting tooth (34) in the follower lower margin seat also moves simultaneously; Step 1.7: The lifting mechanism (32) descends and returns to the initial position, and each rubber strip in the variable-pitch rubber sheet is respectively adsorbed by the corresponding gripper (25). At the same time, the push cylinder (312) is actuated to push the pitch-varied lifting teeth (34) together, thereby completing the resetting of the lifting teeth (34); Step 1.8: The robot drives the glue dispensing servo gripper mechanism (2) to move to the workstation of the single cell, and the corresponding gripper lifting assembly (28) moves, driving the corresponding gripper (25) to stick the glue strips on the two sides of the single cell to be bonded, and glue is dispensed once, completing the bonding of two single cells, and repeating this process; Step 2: Clear glue.

13. A separation method for a battery film glue separation device according to claim 12, characterized in that: The specific steps of step 2 of clearing glue are as follows: Step 2.1: The cleaning adhesive unwinding device (42) rolls up unused cleaning adhesive rolls, the cleaning adhesive rewinding device (43) rewinds the used cleaning adhesive rolls, and the automatic cleaning adhesive mechanism (4) is started regularly according to the production cycle and the viscosity of the film; When it is necessary to clean the glue, the cleaning mode switching device (44) rises, and the cleaning glue roll is closely attached to the conveyor belt (15). At this time, while the operation drive component (13) drives the conveyor belt (15) to operate, the cleaning glue motor (45) starts, driving the cleaning glue rewinding device (43) to rewind the material, thereby driving the cleaning glue unwinding device (42) to unwind the material at the same time, and finally completing the cleaning of the residual glue on the conveyor belt (15); Step 2.2: After the glue cleaning is completed, the glue cleaning mode switching device (44) descends, and the glue cleaning motor (45) stops, waiting for the next glue cleaning.

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