Four-station linear automatic packaging machine for cylindrical batteries

Abstract

The invention discloses a four-station linear type automatic packaging machine for cylindrical batteries. Comprising an unwinding and dust removing mechanism, a sheet film cutting mechanism, a film drawing and transferring mechanism, a sheet film manipulator mechanism, a pit punching mechanism, a battery cell feeding mechanism, a cache detection mechanism, a shell entering mechanism, a clamp mechanism, a sheet film top and bottom sealing mechanism, a top and bottom sealing carrying mechanism, a battery cell rearrangement mechanism, an insulation testing mechanism, a code spraying mechanism and a sorting and discharging mechanism which are sequentially arranged on a rack platform, an aluminum plastic film temporary storage mechanism; and a sheet film top cutting mechanism. The battery cell packaging machine has the beneficial effects that a plurality of mechanisms are integrated, so that various requirements required by battery cell packaging work can be met; the process is optimized while more reasonable mechanism layout is designed, and the packaging efficiency of the battery cell packaging machine is improved. In the battery cell feeding mechanism and the cache detection mechanism, the positions and angles of incoming battery cells and tabs of the incoming battery cells are detected and positioned in all directions by using a CCD (Charge Coupled Device) camera and a position deviation rectifying part, so that the packaging accuracy is improved, and the packaging effect of the battery cells is improved.

Description

Technical Field

[0001] The invention relates to the field of battery core packaging equipment, and in particular to a four-station cylindrical battery linear automatic packaging machine. Background Art

[0002] During the battery packaging process, it is necessary to wrap the aluminum-plastic film around the battery cell to protect and isolate it. Usually, the packaging line process includes: manual feeding of aluminum-plastic film, automatic unwinding, aluminum-plastic film cutting, aluminum-plastic film shelling, aluminum-plastic film cutting, aluminum-plastic film alignment, aluminum-plastic film cutting, automatic / manual feeding of cells, cell clamping, cell positioning, cell top and bottom packaging, cell unloading, cell NG collection, automatic unloading of cells and other processes. However, the existing cell packaging equipment often has many packaging processes and a high frequency of cell transfer between different processes, which leads to the easy position offset when the cell is transported and put into the shell, resulting in the defects of poor packaging effect and high defect rate of the existing packaging equipment. In addition, the existing functional integrated packaging equipment has many stations, the various mechanisms are scattered, and the path required for the cell transfer is long, which wastes working hours and reduces the production efficiency of the equipment; at the same time, the design of the existing packaging equipment is relatively traditional. Under the constraints of mechanism selection and the number of stations, the coordination between stations is not smooth, and the number of cells that can be processed is very limited. Summary of the invention

[0003] 1. Problems to be solved

[0004] The technical problem to be solved by the present invention is to provide a four-station linear automatic packaging machine for cylindrical batteries in view of the current status of the prior art.

[0005] (II) Technical solution

[0006] The present invention is achieved through the following technical solutions:

[0007] A four-station cylindrical battery linear automatic packaging machine includes an unwinding and dust removal mechanism, a sheet film cutting mechanism, a film pulling and transporting mechanism, a sheet film manipulator mechanism, a punching mechanism, an aluminum-plastic film temporary storage mechanism, and a sheet film top cutting mechanism, which are sequentially arranged on a frame platform. A battery cell feeding mechanism is arranged at the rear side of the unwinding and dust removal mechanism. A cache detection mechanism, a shell insertion mechanism, a clamping mechanism, a sheet film top and bottom sealing mechanism, a coding mechanism, and a sorting and discharging mechanism are sequentially arranged on the right side of the battery cell feeding mechanism. A battery cell rearrangement mechanism is arranged in front of the left side of the sheet film top and bottom sealing mechanism, a top and bottom sealing transport mechanism is arranged between the sheet film top and bottom sealing mechanism and the battery cell rearrangement mechanism, and an insulation testing mechanism is arranged on the right side of the battery cell rearrangement mechanism. The battery cell feeding mechanism includes a speed regulating motor, a belt pulling module, a tray top module, a feeding clamping cylinder, a four-axis robot that receives position information and plays a role in taking and releasing materials, and a feeding positioning camera is arranged above the battery cell feeding mechanism. The cache detection mechanism includes a detection cache platform, a power extraction core mold, and a correction platform. A correction camera is arranged above the cache detection mechanism. The clamp mechanism is provided with multiple clamps. A clamp closing cylinder and a servo motor-conveyor belt mechanism for flipping the clamp are arranged on one side of the clamp. A motor-screw module for lifting and lowering the clamp and a linear motor module for driving the clamp to move horizontally are arranged below the servo motor-conveyor belt mechanism. The top and bottom sealing mechanism of the film includes a top sealing assembly and a bottom sealing assembly. The top sealing assembly includes a top sealing cylinder, multiple top sealing support clamps, an upper sealing head, a clamping claw cylinder, a servo motor for driving the upper sealing head to press down, and a sealing position adjustment assembly.

[0008] By adopting the above technical solution and integrating the different mechanisms required in the battery cell packaging process, a large amount of packaging work can be completed automatically and precisely. While designing a more reasonable and compact mechanism layout, the process is adjusted and optimized to reduce the space occupied by the machine and improve the packaging efficiency. In the battery cell feeding mechanism and the cache detection mechanism, CCD cameras and position correction components are used to perform all-round detection and positioning of the incoming battery cells and their tab positions and angles, collect battery cell position offset information and compensate for the misalignment of the battery cells, thereby increasing the accuracy of packaging and improving the packaging effect of the battery cells. Suction plates and other easily replaceable parts are used, and parts can be easily replaced to complete the packaging of batteries of different specifications. It has good versatility and many application scenarios.

[0009] Furthermore, the unwinding dust removal mechanism includes an inflatable reel, a cleaning speed regulating motor, a brush, a hand-adjustable screw for adjusting the center reference plane of the film roll, a gravity roller for straightening the film roll, and a color mark sensor for detecting defects. The inflatable reel is driven to rotate by the unwinding motor. The film cutting mechanism includes multiple three-axis cylinders, slitting knives, and a delivery cylinder. The delivery cylinder is provided with a cutting knife and a cutting top cylinder on the discharge side.

[0010] Furthermore, the film-pulling transfer mechanism includes a transfer claw cylinder, a film-pulling motor, a synchronous belt screw guide rail mechanism, a transfer lifting cylinder, a handling fixture platform, a variable pitch module, a transfer belt module, and a film material NG box.

[0011] Furthermore, the film sheet robot mechanism includes a double-motor linear motor module, a first-motor feeding robot and a second-motor discharging robot of the double-motor linear motor module, which are respectively used to carry the aluminum-plastic film to be punched and the punched film shell.

[0012] Furthermore, the punching mechanism includes a fitting screw-motor mechanism, a punching lower template, a punching rod, and a punching motor. The aluminum film temporary storage mechanism includes an aluminum film temporary storage platform, a support drive motor 1, a support drive motor 2, a left shell removal manipulator, a trimming manipulator, and two-side push cylinders. The film top cutting mechanism includes a cutter seat adjustment bolt, a top cutting cylinder, and a top cutting knife for cutting waste edges.

[0013] Furthermore, the shelling mechanism includes a bare cell handling robot, a tab folding platform, a cell NG box, a cell buffer platform, and a left shelling robot for handling shaped cells.

[0014] Furthermore, the top and bottom seal transport mechanism includes a top and bottom seal transport motor 1, a top and bottom seal transport motor 2, a top and bottom seal slide cylinder, a top and bottom seal clamping claw cylinder, a top and bottom seal transport motor 3, a bottom seal discharge cylinder, a transverse transport cylinder, a top and bottom seal transport motor 1, and a top and bottom seal suction plate cylinder for picking up and discharging materials. The battery cell rearrangement mechanism includes a rearrangement motor-belt module, a rearrangement suction plate cylinder for picking up and discharging materials, and a battery cell delivery cylinder for transferring the battery cells so that the battery cells are above the turntable.

[0015] Furthermore, the insulation test mechanism includes a turntable, a connecting cylinder 1, a connecting cylinder 2, a connecting cylinder 3, and a connecting cylinder 4, and the connecting cylinder 1, the connecting cylinder 2, the connecting cylinder 3, and the connecting cylinder 4 are used to alternately extend and retract to control the conduction of current. The inkjet mechanism includes an inkjet cylinder 1, an inkjet cylinder 2, an inkjet slide cylinder 3, a test discharging motor, an inkjet gun, and a scanning gun.

[0016] Furthermore, the sorting and discharging mechanism includes a discharging motor-belt mechanism, a sorting robot, a stepping motor-synchronous belt mechanism, a discharging buffer platform, and an NG material box. The sorting robot is provided with a discharging suction plate cylinder and a discharging rotating cylinder for rotating the battery cell.

[0017] (III) Beneficial effects

[0018] The present invention integrates multiple mechanisms, and has the functions of aluminum-plastic film packaging, battery cell tab shaping and shelling, aluminum-plastic film sealing, detection, coding, picking out defective products, and pre-processing and feeding of aluminum-plastic film and battery cells, which can meet various requirements for battery cell packaging work; a simple change of parts such as clamps and suction plates can be compatible with a variety of battery cells of different specifications; at the same time, due to the high degree of automation of the present invention, maintenance and debugging are also relatively simple. The present invention adjusts and optimizes the process while designing a more reasonable mechanism layout, reduces the occupied space of the machine and increases the number of workstations. Four battery cells can be processed in the same process, greatly improving the packaging efficiency of the battery packaging machine. In the battery cell feeding mechanism and the cache detection mechanism, a CCD camera and a position correction component are used to perform all-round detection and positioning of the incoming battery cell and its tab position and angle, which increases the accuracy of packaging and improves the packaging effect of the battery cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0020] Figure 1 It is a three-dimensional diagram of the four-station linear automatic packaging machine for cylindrical batteries of the present invention;

[0021] Figure 2 It is a top view of the four-station linear automatic packaging machine for cylindrical batteries of the present invention;

[0022] Figure 3 It is a two-side stereoscopic view in the front and rear directions of the unwinding and dust removal mechanism in the four-station cylindrical battery linear automatic packaging machine of the present invention;

[0023] Figure 4 It is a left and right two-side stereoscopic view of the sheet and film cutting mechanism in the four-station cylindrical battery linear automatic packaging machine of the present invention;

[0024] Figure 5 It is a left and right two-side stereoscopic view of the film-pulling and transporting mechanism in the four-station cylindrical battery linear automatic packaging machine of the present invention;

[0025] Figure 6 It is a three-dimensional diagram of the sheet and film manipulator mechanism in the four-station cylindrical battery linear automatic packaging machine of the present invention;

[0026] Figure 7 It is a three-dimensional diagram of the punching mechanism in the four-station cylindrical battery linear automatic packaging machine of the present invention;

[0027] Figure 8 It is a three-dimensional diagram of the aluminum film temporary storage mechanism in the four-station cylindrical battery linear automatic packaging machine of the present invention;

[0028] Fig. 9 It is a three-dimensional diagram of the film top cutting mechanism in the four-station cylindrical battery linear automatic packaging machine of the present invention;

[0029] Fig.10 It is a three-dimensional diagram of the battery cell feeding mechanism in the four-station cylindrical battery linear automatic packaging machine of the present invention;

[0030] Fig.11 It is a three-dimensional diagram of the buffer detection mechanism in the four-station cylindrical battery linear automatic packaging machine of the present invention;

[0031] Fig.12 It is a three-dimensional diagram of the shell-introducing mechanism in the four-station linear automatic packaging machine for cylindrical batteries of the present invention;

[0032] Fig.13 It is a three-dimensional diagram of the clamp mechanism in the four-station linear automatic packaging machine for cylindrical batteries of the present invention;

[0033] Fig.14 It is a three-dimensional diagram of the sheet film top and bottom sealing mechanism in the four-station cylindrical battery linear automatic packaging machine of the present invention;

[0034] Fig.15 It is a three-dimensional diagram of the top sealing assembly in the four-station linear automatic packaging machine for cylindrical batteries of the present invention;

[0035] Fig.16 It is a three-dimensional diagram of the top and bottom sealing and transporting mechanism in the four-station cylindrical battery linear automatic packaging machine of the present invention from both sides in the left and right directions;

[0036] Fig.17 It is a three-dimensional diagram of the battery cell rearrangement mechanism in the four-station cylindrical battery linear automatic packaging machine of the present invention;

[0037] Fig.18 It is a front and rear two-side stereogram of the insulation testing mechanism in the four-station cylindrical battery linear automatic packaging machine of the present invention;

[0038] Fig.19 It is a three-dimensional diagram of the coding mechanism in the four-station cylindrical battery linear automatic packaging machine of the present invention;

[0039] Fig. 20 It is a three-dimensional diagram of the sorting and discharging mechanism in the four-station cylindrical battery linear automatic packaging machine described in the present invention.

[0040] The reference numerals are as follows:

[0041] 1. Unwinding and dust removal mechanism; 2. Sheet film cutting mechanism; 3. Film pulling and transporting mechanism; 4. Sheet film manipulator mechanism; 5. Punching mechanism; 6. Aluminum-plastic film temporary storage mechanism; 7. Sheet film top cutting mechanism; 8. Battery core feeding mechanism; 9. Cache detection mechanism; 10. Shell insertion mechanism; 11. Clamp mechanism; 12. Sheet film top and bottom sealing mechanism; 13. Inkjet mechanism; 14. Battery core rearrangement mechanism; 15. Insulation testing mechanism; 16. Inkjet mechanism; 17. Sorting and discharging mechanism; 18. Inflatable reel; 19. Unwinding motor; 20. Manual screw rod; 21. Gravity roller; 22. Color mark sensor; 23. Cleaning speed regulating motor; 24. Brush; 25. Slitting knife; 26. Three-axis cylinder; 27. Delivery cylinder; 28. Cutting top cylinder; 29. ​​Cutting knife; 3 0. Transfer gripper cylinder; 31. Film pulling motor; 32. Synchronous belt screw guide mechanism; 33. Transfer lifting cylinder; 34. Handling fixture platform; 35. Variable pitch module; 36. Transfer belt module; 37. Film material NG box; 38. Double-actuator linear motor module; 39. First-actuator feeding robot; 40. Second-actuator discharging robot; 41. Laminating screw-motor mechanism; 42. Punching the lower template; 43. Punching male; 44. Punching pit motor; 45. Aluminum film temporary storage platform; 46. Support drive motor 1; 47. Support drive motor 2; 48. Left shell removal robot; 49. Edge cutting robot; 50. Push cylinders on both sides; 51. Cutter seat adjustment bolt; 52. Top cutting cylinder; 53. Top cutting knife; 54. Speed ​​regulating motor; 55. Material tray upper module; 56, material feeding clamping cylinder; 57, material feeding positioning camera; 58, four-axis robot; 59, belt pulling module; 62, detection buffer platform; 64, battery cell removal module; 65, correction platform; 66, correction camera; 67, bare battery cell handling manipulator; 68, folding ear platform; 69, battery cell NG box; 70, battery cell buffer platform; 71, left shell entry manipulator; 72, fixture; 73, linear motor module; 74, servo motor-conveyor belt mechanism; 75, fixture approaching cylinder; 76, motor-screw module; 77, top sealing assembly; 78, bottom sealing assembly; 79, servo motor; 80, upper head; 81, gripper cylinder; 82, top sealing cylinder; 821, top sealing support fixture; 83, seal position adjustment assembly; 84. Top and bottom seal handling motor 1; 85. Top and bottom seal handling motor 2; 86. Top and bottom seal slide cylinder; 87. Top and bottom seal gripper cylinder; 88. Top and bottom seal handling motor 3; 89. Bottom seal discharge cylinder; 90. Transverse transport cylinder; 91. Top and bottom seal handling motor 1; 92. Top and bottom seal suction plate cylinder; 94. Rearrangement motor-belt module; 95. Rearrangement suction plate cylinder; 96. Power supply core cylinder; 961. Turntable; 98. Connecting cylinder 1; 99. Connecting cylinder 2; 100. Connecting cylinder 3; 101. Connecting cylinder 4; 102. Inkjet coding cylinder 1; 103. Inkjet coding cylinder 2; 104. Inkjet coding slide cylinder 3; 105. Test discharge motor; 106. Inkjet coding gun; 107. Scanning code gun; 108. Discharge motor-belt mechanism;109, discharge suction plate cylinder; 110, discharge rotary cylinder; 111, stepper motor-synchronous belt mechanism; 112, discharge buffer platform; 113, NG material box. ; DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] In the description of the present application, it should be understood that the terms "thickness", "up", "down", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0044] See also Figure 1-Figure 20The present invention provides a technical solution: comprising an unwinding and dust removal mechanism (1), a film cutting mechanism (2), a film pulling and transporting mechanism (3), a film manipulator mechanism (4), a punching mechanism (5), an aluminum-plastic film temporary storage mechanism (6) and a film top cutting mechanism (7) which are sequentially arranged on a frame platform. A cell feeding mechanism (8) is arranged at the rear side of the unwinding and dust removal mechanism (1), a cache detection mechanism (9), a shell insertion mechanism (10), a clamping mechanism (11), a film top and bottom sealing mechanism (12), a coding mechanism (16) and a sorting and discharging mechanism (17) are sequentially arranged on the right side of the cell feeding mechanism (8), and a cell rearrangement mechanism (14) is arranged at the left front of the film top and bottom sealing mechanism (12). A top and bottom sealing transport mechanism (13) is arranged between the film top and bottom sealing mechanism (12) and the battery cell rearrangement mechanism (14), and an insulation testing mechanism (15) is arranged on the right side of the battery cell rearrangement mechanism (14); the battery cell feeding mechanism (8) includes a speed regulating motor (54), a belt pulling module (59), a material tray upper module (55), a feeding clamping cylinder (56), and a four-axis robot (58) that receives position information and plays a role in taking and releasing materials, and a feeding positioning camera (57) is arranged above the battery cell feeding mechanism (8). The cache detection mechanism (9) includes a detection cache platform (62), a battery cell taking module (64), and a correction platform (65), and a correction camera (66) is arranged above the cache detection mechanism (9). The clamp mechanism (11) is provided with a plurality of clamps (72), one side of the clamp (72) is provided with a clamp approaching cylinder (75) and a servo motor-conveyor belt mechanism (74) for flipping the clamp (72), and a motor-screw module (76) for lifting and lowering the clamp (72) and a linear motor module (73) for driving the clamp (72) to move horizontally are provided below the servo motor-conveyor belt mechanism (74). The film top and bottom sealing mechanism (12) includes a top sealing component (77) and a bottom sealing component (78), and the top sealing component (77) includes a top sealing cylinder (82), a plurality of top sealing support clamps (821), an upper sealing head (80), a clamping claw cylinder (81), a servo motor (79) for driving the upper sealing head (80) to press downward, and a sealing position adjustment component (83). The present invention integrates different mechanisms required in the battery cell packaging process, and can automatically and precisely complete a large amount of packaging work. While designing a more reasonable and compact mechanism layout, the process is adjusted and optimized, reducing the space occupied by the machine and improving the packaging efficiency. In the battery cell feeding mechanism and cache detection mechanism, CCD cameras and position correction components are used to perform comprehensive detection and positioning of the incoming battery cells and their tab positions and angles, collect battery cell position offset information and compensate for the misalignment of the battery cells, increase the accuracy of packaging, and improve the packaging effect of the battery cells. Suction plates and other easily replaceable parts are used, and parts can be easily replaced to complete the packaging of batteries of different specifications. It has good versatility and many application scenarios.When the battery cell loading mechanism (8) is working, the staff first moves a whole stack of trays loaded with battery cells to the tail of the drawstring, and then the photoelectric sensor detects the trays, and the speed regulating motor (54) drives the drawstring to move forward and stop at the head of the drawstring; then, the tray upper module (55) pushes the whole stack of trays, and when the tray rises to the preset position, the loading clamping cylinders (56) on the left and right sides extend and support the top tray. Next, the loading positioning camera (57) above the tray takes a picture to calculate the position of the four bare battery cells, and sends the coordinates to the four-axis robot (58), which takes the four bare battery cells in turn and then moves them to the cache detection mechanism 9 for discharge. After all the battery cells on the tray are taken away, the belt pulling module (59) takes away the empty tray and places it on the screw module (60) on the left. After that, four cylinders roughly position the empty trays to prevent them from tipping over. When a certain number of empty trays are stacked, the screw module (60) descends to transport the entire stack of empty trays to the left pull belt, and then the left pull belt moves the empty trays a certain distance. When the cache detection mechanism (9) is working, the four-axis robot (58) of the battery cell loading mechanism (8) places four bare batteries on the detection cache platform (62), and then the loading cylinder (63) retracts and pulls the platform behind to the right side of the battery cell removal module (64). Then the battery cell removal module (64) takes out the batteries on the detection cache platform (62) in two times, and then moves them to the deviation correction platform (65) at one time. At this time, the arrangement state of the bare batteries changes from 2×2 to 1×4, which is consistent with the arrangement state of the membrane shell placed on the fixture. After placing the battery cell on the correction platform 65, the slide cylinder will push the battery cell to adjust the Y reverse position, and then the correction camera (66) above will take a picture to calculate the placement angle of the bare battery cell, and then the stepper motor will drive the two small rollers to rotate and drive the bare battery cell to rotate until the pole ears at both ends of the bare battery cell are parallel to the ground. In the operation of the clamp mechanism (11), after the film shell with the waste edge cut is placed on the clamp (72), the linear motor (73) moves to a fixed position to wait for the left manipulator 71 of the shell insertion mechanism (10) to insert the bare battery cell with the pole ears shaped, and then the servo motor (74) drives the clamp (72) to flip and cover through the synchronous belt to fold the aluminum-plastic film, and then the two cylinders (75) retract to make the second and fourth clamps (72) move closer to the first and third clamps (72). Afterwards, the linear motor module (73) drives the clamp platform to move toward the top sealing head. After reaching the sealing position, the motor-screw module (76) drives the clamp platform to descend through the screw to make it consistent with the sealing height of the top sealing head. Then the top sealing is performed, and then the linear motor module (73) continues to descend in height and withdraws the membrane shell discharge position.When the film top and bottom sealing mechanism (12) is working, after the clamp mechanism (11) transfers the film after the shell is put into the cover to the sealing position, the top sealing component (77) first heat-seals the top sealing edge of the aluminum-plastic film, and then the top and bottom sealing conveying mechanism (13) sends the film to the bottom sealing component (78) for bottom sealing. Among them, the top sealing cylinder (82) extends the aluminum-plastic film sent by the top sealing support clamp (821), and the clamping claw cylinder (81) drives the clamping claw to clamp the pole ear. After adjusting the position of the pole ear to the center, the servo motor (79) drives the electric cylinder to move, so that the upper sealing head (80) is pressed downward until it contacts with the lower sealing head to seal the top sealing edge of the aluminum-plastic film. The temperature of the upper and lower sealing heads during the sealing process is 170-220°C, which can be adjusted accordingly according to the parameters of the aluminum-plastic film. At the same time, the top sealing component (77) and the bottom sealing component (78) can flexibly adjust the front and rear position and angle of the sealing position through the sealing position adjustment component (83) and the top pulling block, thereby improving the packaging effect.

[0045] Specifically, the unwinding dust removal mechanism (1) comprises an inflatable reel (18), a cleaning speed regulating motor (23), a brush (24), a hand-adjustable screw rod (20) for adjusting the central reference plane of the film roll, a gravity roller (21) for straightening the film roll, and a color mark sensor (22) for detecting defects. The inflatable reel (18) is driven to rotate by the unwinding motor (19); the film cutting mechanism (2) comprises a plurality of three-axis cylinders (26), a slitting knife (25), and a delivery cylinder (27). A cutting knife (29) and a cutting top cylinder (28) are arranged on the discharge side of the delivery cylinder (27). During operation, the aluminum-plastic film roll is first fixed by inflating the air reel (18), and then the unwinding motor (19) drives the air reel (19) to unwind the aluminum-plastic film through the pulley, and then the central reference plane of the unwinding is adjusted by the hand-adjusting screw rod (20) according to the width of the unwinding aluminum-plastic film so that it is aligned with the reference of the rear mechanism, and then the gravity roller (21) is used to straighten the aluminum-plastic film. A color mark sensor (22) is provided at the film outlet to detect whether there is damage or joint on the front and back sides of the aluminum-plastic film. If the aluminum-plastic film is found to be defective, the waste film of the defective part is thrown into the waste film NG box. During the unwinding process, the aluminum-plastic film is evenly cut into four equal parts when passing through the slitting knife (25), and then the cleaning speed regulating motor (23) rotates the magnetic wheel to drive the upper and lower brushes (24) to rotate and clean the dust and debris on the aluminum-plastic film. When the film cutting mechanism (20) is working, the four three-axis cylinders (26) move up and down to compress and release the aluminum-plastic film after slitting, and then the delivery cylinder (27) installed horizontally at the bottom will deliver the compressed aluminum-plastic film to the outside of the cutter for a certain distance, so that the subsequent mechanism can clamp the aluminum-plastic film. When cutting, the cutting top cylinder (28) at the top of the mechanism drives the cutting knife (29) to move up and down to cut the aluminum-plastic film.

[0046] Specifically, the film-pulling and transporting mechanism (3) includes a transporting clamping cylinder (30), a film-pulling motor (31), a synchronous belt screw guide rail mechanism (32), a transporting lifting cylinder (33), a handling fixture platform (34), a variable pitch module (35), a transporting belt module (36), and a film material NG box (37). When the film-pulling and transporting mechanism (3) is working,

[0047] The four transport clamping claws cylinders (30) with the clamping claws respectively clamp the part of the aluminum-plastic film sent out by the film cutting mechanism (2), and then the film pulling motor (31) and the synchronous belt screw guide rail mechanism (32) pull the aluminum-plastic film to the required length, and then the transport lifting cylinder (33) lifts the handling fixture platform (34) to suck the aluminum-plastic film, and then the transport clamping claws cylinder (30) with the clamping claws release the aluminum-plastic film and leave to avoid the air. After the aluminum-plastic film is cut by the cutting knife (29) of the film cutting mechanism (2), the variable pitch module (35) pulls the four aluminum-plastic films apart to obtain a certain spacing, and then the transport belt module (36) moves the handling fixture platform (34) with the aluminum-plastic film to the film taking position at one end of the film manipulator mechanism (4). If the color mark sensor (22) detects that the aluminum-plastic film is damaged or has a joint, the waste film of this defective part is transferred to the film material NG box (37).

[0048] Specifically, the film sheet manipulator mechanism (4) includes a double-moving linear motor module (38), a first moving feeding manipulator (39) of the double-moving linear motor module (38), and a second moving discharging manipulator (40) for carrying the aluminum-plastic film to be punched and the film shell that has been punched, respectively. In the film sheet manipulator mechanism (4), in order to ensure the accuracy and speed of the aluminum-plastic film transfer, a double-moving linear motor module (38) is used to drive the movement. Among them, the first moving feeding manipulator (39) is used to carry the aluminum-plastic film sheet from the film pulling and transporting mechanism (3) to the punching mechanism (5), and the second moving discharging manipulator (40) is used to carry the film shell that has been punched to the aluminum film temporary storage mechanism (6). The clamp suction plates installed on the first moving feeding manipulator (39) and the second moving discharging manipulator (40) are provided with separate buffer springs to prevent the aluminum-plastic film from leaking vacuum and causing the situation that it cannot be sucked.

[0049] Specifically, the punching mechanism (5) includes a fitting screw-motor mechanism (41), a punching lower template (42), a punching rod (43), and a punching motor (44). The aluminum film temporary storage mechanism (6) includes an aluminum film temporary storage platform (45), a support drive motor 1 (46), a support drive motor 2 (47), a left shell taking manipulator (48), a trimming manipulator (49), and two-side push cylinders (50); the film top cutting mechanism (7) includes a cutter seat adjustment bolt (51), a top cutting cylinder (52), and a top cutting knife (53) for cutting waste edges. When the punching mechanism (5) is working, after the film manipulator mechanism (4) puts the aluminum-plastic film to the punching position, the fitting screw-motor mechanism (41) pushes the punching lower template (42) to move upward and fit the upper template, and then the punching motor (44) pushes the punching rod (43) downward through the screw to punch. After the punching is completed, the punching rod (43) retracts, and the punching lower template (42) drops to a certain height. When the aluminum film temporary storage mechanism (6) is working, the second movable discharging manipulator (40) of the sheet film manipulator mechanism (4) places the film shell after the punching on the aluminum film temporary storage platform (45) in two times, first placing the film shell on the two clamp suction plates on the right side, and then the supporting driving motor 1 (46) drives the aluminum film temporary storage platform (45) to move a predetermined distance, and then the second movable discharging manipulator (40) places the remaining two film shells on the aluminum film temporary storage platform (45) and withdraws. In the sheet film top cutting mechanism (7), the cutter seat adjustment bolt (51) is used to adjust the relative position of the two cutter seats to be equal to the width of the aluminum-plastic film. After that, the aluminum film temporary storage mechanism (6) moves the film shell to a fixed position, and the top cutting cylinder (52) drives the top cutting knife (53) to move up and down to cut the waste edge of the film shell. Two film shells can be cut at the same time in one action.

[0050] Specifically, the shelling mechanism (10) includes a bare cell handling robot (67), a folding ear platform (68), a cell NG box (69), a cell buffer platform (70), and a left shelling robot (71) for handling shaped cells. When the shelling mechanism (10) is working, the bare cell handling robot (67) first moves to the end of the folding ear platform (68), and the bare cell after posture rotation is carried to the folding ear platform (68) for ear shaping. Among them, if the correction platform (65) determines that a bare cell is NG, the NG cell is transferred to the cell NG box (69), and other OK cells are buffered on the cell buffer platform (70). When there are 4 OK bare cells, they are placed on the folding ear platform (68) for ear shaping. The left shell entry manipulator (71) is used to alternately extend and retract the pole ear cylinder three (100) and the connecting cylinder four (101) to control the current conduction; the coding mechanism (16) includes a coding cylinder one (102), a coding cylinder two (103), a coding slide cylinder three (104), a test discharge motor (105), a coding gun (106), and a code scanning gun (107). When the insulation test mechanism (15) is working, the battery cell rearrangement mechanism (14) first puts the battery cell on the turntable (961), and the servo motor drives the turntable (961) to rotate 90 degrees. At this time, the battery cell reaches the first test station to test the conduction between the positive and negative electrodes of the battery cell. Then the connecting cylinder one (98) is extended, and the connecting cylinder two (99) is retracted. After the copper block contacts the battery cell pole ear, the insulation test begins. After the first test is completed, the turntable rotates 90° again and reaches the second test station to test the conduction between the tab and the aluminum-plastic film. At this time, the connecting cylinder three (100) extends, the connecting cylinder four (101) retracts, and the copper block contacts the tab on one side. After the bayonet of the bayonet assembly pierces the edge of the air bag, the insulation test begins. After the second test is completed, the turntable rotates 90° again, and the battery cell reaches the unloading position. During the test, if a defective battery cell appears, the PLC will mark the battery and pick out the defective product when it reaches the unloading station. After the battery cell in the insulation test mechanism (15) reaches the unloading position, the coding cylinder one (102) retracts, the coding transverse movement assembly moves to the top of the turntable (961), and then the coding cylinder two (103) retracts. After the suction plate sucks the battery cell, the coding cylinder two (103) extends again (103), the coding cylinder one (102) extends, and the coding transverse movement assembly moves to the unloading position. Next, the inkjet slide cylinder 3 (104) of the inkjet handling assembly extends, and the inkjet cylinder 2 (103) retracts, placing the battery cell on the suction plate, and the inkjet slide cylinder 3 (104) retracts, and the test discharge motor (105) moves the battery cell toward the discharge direction. After reaching the designated position, the two inkjet guns (106) spray the code at the same time; after the code is sprayed, the test discharge motor (105) continues to move, so that the next two battery cells also complete the code spraying. At the same time, the two scanning guns (107) scan the first two battery cells; then the next two battery cells move to the discharge position after scanning.If a battery with poor code scanning is encountered, the PLC will mark the battery and pick out the defective products when they arrive at the unloading station.

[0051] Specifically, the sorting and discharging mechanism (17) includes a discharging motor-belt mechanism (108), a sorting manipulator (1081), a stepper motor-synchronous belt mechanism (111), a discharging buffer platform (112), and an NG material box (113). The sorting manipulator (1081) is provided with a discharging suction plate cylinder (109) and a discharging rotating cylinder (110) for rotating the battery cell. When the battery cell that has been scanned is placed at the discharge position, the discharging motor-belt mechanism (108) drives the sorting manipulator to move to the material taking position, and then the discharging suction plate cylinder (109) extends out, and the suction plate sucks the battery cell on the coding platform, and the discharging suction plate cylinder (109) retracts, and the discharging rotating cylinder (110) rotates 90 degrees again. At this time, if all the battery cells are OK, they are placed on the unloading platform, and the stepper motor-synchronous belt mechanism (111) sends the finished battery cell to the next process - liquid injection. If a NG cell appears among the four cells, the NG cell will be transferred to the corresponding NG material box (113), and the other OK cells will be buffered on the discharge buffer platform (112). After the next sorting robot discards the NG cells, the OK cells will be taken out from the buffer platform 112, and the four OK cells will be collected and sent to the next process.

[0052] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A four-station linear automatic packaging machine for cylindrical batteries, characterized in that: The invention comprises an unwinding and dust removing mechanism (1), a sheet film cutting mechanism (2), a film pulling and transporting mechanism (3), a sheet film manipulator mechanism (4), a punching mechanism (5), an aluminum-plastic film temporary storage mechanism (6) and a sheet film top cutting mechanism (7) which are sequentially arranged on a frame platform; a battery cell feeding mechanism (8) is arranged on the rear side of the unwinding and dust removing mechanism (1); a buffer detection mechanism (9), a shell insertion mechanism (10), a clamping mechanism (11), a sheet film top and bottom sealing mechanism (12), a coding mechanism (16) and a sorting and discharging mechanism are sequentially arranged on the right side of the battery cell feeding mechanism (8). (17), a cell rearrangement mechanism (14) is arranged in front of the left side of the film top and bottom sealing mechanism (12), a top and bottom sealing transport mechanism (13) is arranged between the film top and bottom sealing mechanism (12) and the cell rearrangement mechanism (14), and an insulation testing mechanism (15) is arranged on the right side of the cell rearrangement mechanism (14); the cell loading mechanism (8) includes a speed regulating motor (54), a belt pulling module (59), a tray upper module (55), a loading clamping cylinder (56), and a four-axis robot (58) for receiving position information and for taking and placing materials, A loading positioning camera (57) is arranged above the battery cell loading mechanism (8); the buffer detection mechanism (9) comprises a detection buffer platform (62), a battery cell taking module (64), and a correction platform (65); a correction camera (66) is arranged above the buffer detection mechanism (9); the clamp mechanism (11) is provided with a plurality of clamps (72); a clamp closing cylinder (75) and a servo motor-conveyor belt mechanism (74) for flipping the clamp (72) are arranged on one side of the clamp (72); the servo motor-conveyor belt mechanism (74) A motor-screw module (76) for lifting and lowering the clamp (72) and a linear motor module (73) for driving the clamp (72) to move horizontally are arranged below; the film top and bottom sealing mechanism (12) includes a top sealing component (77) and a bottom sealing component (78), and the top sealing component (77) includes a top sealing cylinder (82), a plurality of top sealing support clamps (821), an upper sealing head (80), a clamping claw cylinder (81), a servo motor (79) for driving the upper sealing head (80) to press down, and a sealing position adjustment component (83).

2. The four-station cylindrical battery linear automatic packaging machine according to claim 1 is characterized in that: The unwinding and dust removal mechanism (1) comprises an inflatable reel (18), a cleaning speed regulating motor (23), a brush (24), a hand-adjustable screw rod (20) for adjusting the central reference plane of the film roll, a gravity roller (21) for straightening the film roll, and a color mark sensor (22) for detecting defects. The inflatable reel (18) is driven to rotate by the unwinding motor (19). The film cutting mechanism (2) comprises a three-axis cylinder (26), a slitting knife (25), and a delivery cylinder (27). The delivery cylinder (27) is provided with a cutting knife (29) and a cutting top cylinder (28) on the discharge side.

3. The four-station cylindrical battery linear automatic packaging machine according to claim 1 is characterized in that: The film-pulling transfer mechanism (3) comprises a transfer clamping cylinder (30), a film-pulling motor (31), a synchronous belt screw guide rail mechanism (32), a transfer lifting cylinder (33), a handling fixture platform (34), a variable pitch module (35), a transfer belt module (36), and a film material NG box (37).

4. The four-station cylindrical battery linear automatic packaging machine according to claim 1 is characterized in that: The film sheet manipulator mechanism (4) comprises a double-moving linear motor module (38), a first moving member feeding manipulator (39) and a second moving member discharging manipulator (40) of the double-moving linear motor module (38), which are respectively used to carry the aluminum-plastic film to be punched and the punched film shell.

5. The four-station cylindrical battery linear automatic packaging machine according to claim 1 is characterized in that: The punching mechanism (5) includes a fitting screw-motor mechanism (41), a punching lower template (42), a punching rod (43), and a punching motor (44); the aluminum film temporary storage mechanism (6) includes an aluminum film temporary storage platform (45), a support drive motor 1 (46), a support drive motor 2 (47), a left shell taking manipulator (48), a trimming manipulator (49), and two-side pushing cylinders (50); the film top cutting mechanism (7) includes a cutter seat adjustment bolt (51), a top cutting cylinder (52), and a top cutting knife (53) for cutting waste edges.

6. The four-station cylindrical battery linear automatic packaging machine according to claim 1 is characterized in that: The shell insertion mechanism (10) comprises a bare cell transporting robot (67), a tab folding platform (68), a cell NG box (69), a cell buffer platform (70), and a left shell insertion robot (71) for transporting shaped cells.

7. The four-station cylindrical battery linear automatic packaging machine according to claim 1 is characterized in that: The top and bottom seal transport mechanism (13) comprises a top and bottom seal transport motor 1 (84), a top and bottom seal transport motor 2 (85), a top and bottom seal slide cylinder (86), a top and bottom seal clamping claw cylinder (87), a top and bottom seal transport motor 3 (88), a bottom seal discharge cylinder (89), a transverse transport cylinder (90), a top and bottom seal transport motor 1 (91), and a top and bottom seal suction plate cylinder (92) for picking up and discharging materials; the battery cell rearrangement mechanism (14) comprises a rearrangement motor-belt module (94), a rearrangement suction plate cylinder (95) for picking up and discharging materials, and a battery cell delivery cylinder (96) for transferring the battery cells so that the battery cells are located above the turntable (961).

8. The four-station cylindrical battery linear automatic packaging machine according to claim 1 is characterized in that: The insulation testing mechanism (15) comprises a rotating disk (961), a connecting cylinder 1 (98), a connecting cylinder 2 (99), a connecting cylinder 3 (100), and a connecting cylinder 4 (101), wherein the connecting cylinder 1 (98), the connecting cylinder 2 (99), the connecting cylinder 3 (100), and the connecting cylinder 4 (101) are used to alternately extend and retract to control current conduction; the coding mechanism (16) comprises a coding cylinder 1 (102), a coding cylinder 2 (103), a coding slide cylinder 3 (104), a test discharging motor (105), a coding gun (106), and a coding scanning gun (107).

9. The four-station cylindrical battery linear automatic packaging machine according to claim 1 is characterized in that: The sorting and discharging mechanism (17) comprises a discharging motor-belt mechanism (108), a sorting robot (1081), a stepping motor-synchronous belt mechanism (111), a discharging buffer platform (112), and an NG material box (113); the sorting robot (1081) is provided with a discharging suction plate cylinder (109) and a discharging rotating cylinder (110) for rotating the battery core.

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