Cylindrical battery sealing machine device with checking mechanism

Abstract

The invention relates to the technical field of lithium battery manufacturing, in particular to a cylindrical battery sealing machine device with a verification mechanism, which comprises a machine base, a portal frame fixed above the machine base, a lifting table lifting in the portal frame, a hemming module connected with the lower part of the lifting table, and two half dies arranged below the hemming module, a cylindrical battery is clamped between the two half dies, the hemming module is used for pushing and hemming a top edge shell barrel on the cylindrical battery, and compared with the problem that battery barrel hemming damage is caused by rigid downward pressing of a traditional upper die, flexible hemming is adopted, damage to the interior of a bent material is reduced, the produced cylindrical battery is sealed more firmly, and the sealing quality of the cylindrical battery is improved. After the upper edge of the battery cylinder is completely folded inwards, the pressure applying die is changed from flexible pressure applying to rigid pressure applying so that the inner folded edge of the upper portion of the battery can be accurately formed, in addition, the edge curling head which moves in a surrounding mode gradually pushes and presses the top edge shell cylinder, the top edge shell cylinder can be directly folded inwards by 90 degrees, and repeated punching is not needed.

Description

Technical Field

[0001] This invention relates to the field of lithium battery manufacturing technology, specifically to a cylindrical battery sealing machine device with a verification mechanism. Background Technology

[0002] The manufacturing process of cylindrical lithium batteries used in new energy electric vehicles involves a battery sealing process. The top cover of the cylindrical battery is placed inside the top of the outer metal cylinder. The two lower half molds on the sealing machine are joined together to clamp the cylindrical battery. The upper mold on the sealing machine descends and presses the top of the battery metal cylinder. Through multi-stage mold pressure, the top of the metal shell is rolled inward and sealed.

[0003] In traditional sealing machines, the rigid pressing of the mold lacks elastic compensation, which may lead to localized stress concentration in the battery casing material, causing internal damage to the metal and, in severe cases, wrinkling, cracking, or thinning. While flexible stamping methods can be used, the flexible pressing of the mold results in incomplete forming, leading to low edge curling accuracy. If the battery metal tube cannot be curled exactly according to the set specifications, the produced battery will not meet the standards.

[0004] Traditional edge-rolling sealing technology involves pressing down the upper mold to fold the upper edge of the battery tube inward and tilt it. Then, in the next step, the next upper mold presses down to fold the tilted edge of the battery tube inward a second time and flatten it. Through multi-stage pressure, the metal tube of the battery is completely rolled. If the sealing and edge-rolling can be completed in a single step, the efficiency of the sealing machine can be directly improved.

[0005] Furthermore, the frequent splicing and clamping of cylindrical batteries in the lower mold and the frequent lifting and lowering of the upper mold, along with the vibrations generated during prolonged operation of the sealing machine, can lead to positioning deviations. If the cylindrical battery is not perfectly aligned with the descending upper mold, even with stamping and edge-sealing, the edge at the top of the battery will not be uniform, resulting in substandard cylindrical batteries. Traditional verification techniques involve inspecting batteries after production, discarding defective ones, which is a loss for battery manufacturers. If position verification can be performed simultaneously during edge-sealing, positional deviations can be detected promptly, stopping the sealing process. After inspection and repair, workers can continue edge-sealing misaligned batteries, eliminating the need for discarded batteries and reducing production losses for the company. Summary of the Invention

[0006] The purpose of this invention is to provide a cylindrical battery sealing machine device with a verification mechanism to solve the problem of rigid stamping sealing damage mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a cylindrical battery sealing machine device with a verification mechanism, comprising an organic base, a gantry frame fixed above the machine base, a lifting platform that moves up and down within the gantry frame, a crimping module connected to the lower part of the lifting platform, and two half-molds disposed below the crimping module, with a cylindrical battery held between the two half-molds. The crimping module pushes and crimps the top edge of the cylindrical battery. The crimping module includes: The circular column fixed on the lifting platform, the large ring bevel gear fixed at the bottom of the circular column, the outer cylinder gear ring movably sleeved in the ring groove on the outside of the circular column, and the ring frame fixed below the outer cylinder gear ring. The rigid-flexible converter is installed in the ring frame, and the bottom of the rigid-flexible converter is driven by a curling head. The top of the rigid-flexible converter is connected to the large ring bevel gear. The curling head flexibly pushes the top edge shell during the movement. After the top edge shell is rolled flat inside, the curling head rigidly pushes the top edge shell during the movement.

[0008] The rigid-flexible converter includes a lever pressing device that establishes a transmission with the large ring bevel gear, a rear drive device for driving the crimped head, and a conversion device that links the lever pressing device and the rear drive device.

[0009] The conversion device includes: A center frame fixed on a ring frame, and an amplifying shaft and a central shaft simultaneously supported on the center frame, wherein the amplifying shaft is driven by a fixed disc gear meshing with a gear fixed at the top of the central shaft. A circular cover frame fixed at the bottom of the central shaft, ratchet discs distributed within the circular cover frame, and a rigid-flexible ring assembly that applies pressure between the ratchet discs and the circular cover frame; An air ring assembly mounted on the round cover frame, and an electric switch that contacts the drive on one side of the air ring assembly; The device consists of an extended ring gear fixed below the ratchet disc, a reset spring fixed inside the extended ring gear, and an inner stud shaft fixed in the middle of the reset spring. The inner stud shaft is also movably sleeved in a through hole opened in the middle of the ratchet disc.

[0010] The rigid-flexible ring assembly includes a hair-pressing ring encircled above the round cover frame, multiple unit bars vertically encircled on the hair-pressing ring, a spring fitted on each unit bar, and a C-shaped spring piece corresponding to one end of each unit bar. The unit bars slide through the through holes opened on the round cover frame, and the springs are supported between the round cover frame and the hair-pressing ring.

[0011] Multiple protrusions are arranged around the inside of the round cover frame. One end of the C-shaped spring is fixed on the protrusion of the round cover frame. Multiple protrusions are arranged around the outside of the ratchet disk, and the other end of the C-shaped spring contacts the protrusion that pushes the ratchet disk. A pointed tip is provided on the unit bar and inserted into the C-shaped spring to support the C-shaped spring.

[0012] The gas ring assembly includes multiple gas distribution pipes that are arranged around the edge of the round cover frame, a piston arc column that extends and retracts in an arc-shaped tube at one end of the gas distribution pipe, a fine-hole cylinder that extends and retracts at the other end of the gas distribution pipe, and an integrated ring plate that is arranged around the outside of the round cover frame. The integrated ring plate and the fine-hole cylinder are fixedly connected, and each piston arc column is fixedly connected to a protrusion on the ratchet disc. An electric switch controls the power supply to and from the signal transmitter located inside the ring frame. The integrated ring plate moves axially to open the electric switch and supply power.

[0013] The lever pressing device includes an upper frame fixed on the ring cylinder frame, an upper worm gear, an upper shaft and a lever shaft simultaneously supported on the upper frame, and a swing pressing frame and a switching plate fixed on the lever shaft. The swing pressing frame is provided with an arc-shaped rack to mesh with a gear fixed at the end of the amplification shaft. The switching plate presses the rounded corner set on the inner edge of the pressing ring by swinging. One end of the upper worm gear meshes with the large ring bevel gear through a fixed bevel gear, and one end of the upper shaft drives the upper worm gear through a fixed worm wheel.

[0014] The lever pressing device also includes a pusher that slides through a square hole in the upper frame, and a volute disk for pushing the pendulum pressing frame. The volute disk is fixed to the end of the upper shaft. The outer wall of the volute disk is a vortex sidewall that gradually moves away from the central axis of the volute disk. The volute disk pushes the pusher by rotating. After the volute disk completes one revolution, the pusher that has lost support automatically resets. An arc surface is provided at the outer end of the vortex sidewall of the volute disk.

[0015] The rear drive device includes a lower frame fixed on the ring frame, and a lower worm, a flat shaft and a lead-out shaft supported on the lower frame. The end of the lower worm meshes with the range-extending ring gear through a fixed gear. One end of the flat shaft drives the lower worm through a fixed worm wheel, and the other end of the flat shaft drives the lower worm through a fixed bevel gear fixed on the lead-out shaft.

[0016] The crimping head includes an arched frame fixed on the lower frame, a pressing frame sliding on the arched frame, rollers supported on the inner side of the pressing frame, and an arc-shaped rack fixed on the outer side of the pressing frame. The arc-shaped rack and the gear fixed at the end of the lead-out shaft mesh and drive each other. An arc plate is provided on the arched frame to pass through the arc plate hole opened on the pressing frame. The rollers surround and push the top edge shell cylinder.

[0017] Compared with the prior art, the beneficial effects of the present invention are: 1. Compared to the damage to the battery tube edge caused by the rigid pressing of the traditional mold, the present invention adopts flexible folding, which reduces the damage to the internal structure of the bent material and makes the cylindrical battery seal more secure. After the top edge of the battery tube is completely folded inward, the pressure mold changes from flexible to rigid to accurately shape the inner folded edge of the battery. In addition, the top edge shell is gradually pushed by the circling rolling head, which directly makes the top edge shell fold inward at a 90-degree angle without the need for multiple stamping.

[0018] 2. This invention uses a verification mechanism to detect whether the battery is misaligned. If the battery is misaligned, it will directly cause abnormal transmission inside the rigid-flexible converter during the initial stage of the crimping head pressing. This will cause the signal transmitter installed in the ring frame to send an alarm signal, and the sealing machine will stop running, thus avoiding the production of cylindrical batteries that do not meet the sealing standards. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention.

[0020] Figure 2 This is a schematic diagram showing the location of the rolled edge module.

[0021] Figure 3 This is a schematic diagram showing the location of the rigid-flexible converter.

[0022] Figure 4 This is a schematic diagram showing the location of the rolled edge.

[0023] Figure 5 This is a schematic diagram of the ring frame structure.

[0024] Figure 6 This is a schematic diagram of a rigid-flexible converter.

[0025] Figure 7 This is a schematic diagram of the conversion device.

[0026] Figure 8 This is a schematic diagram showing the position of the reset spring.

[0027] Figure 9 This is a schematic diagram of the round cover frame structure.

[0028] Figure 10 This is a schematic diagram of a rigid-flexible ring assembly structure.

[0029] Figure 11 This is a schematic diagram of the gas ring assembly structure.

[0030] Figure 12 This is a schematic diagram of an electric switch.

[0031] Figure 13 This is a schematic diagram of the lever pressing device.

[0032] Figure 14 This is a schematic diagram of a vortex disk structure.

[0033] Figure 15 This is a schematic diagram of the position of the upper worm gear.

[0034] Figure 16 This is a schematic diagram of the rear-drive unit.

[0035] Figure 17 This is a diagram showing the position of the rollers.

[0036] In the diagram: 1. Machine base; 2. Gantry frame; 3. Lifting platform; 4. Hemming module; 5. Semi-mold; 6. Cylindrical battery; 6. Top edge shell; 7. Frustum column; 8. Large ring bevel gear; 9. Outer cylinder gear ring; 10. Ring frame; 11. Rigid-flexible converter; 12. Hemming head; 13. Lever pressing device; 14. Rear drive device; 15. Conversion device; 16. Center frame; 17. Amplifying shaft; 18. Central shaft; 19. Round cover frame; 20. Ratchet; 21. Rigid-flexible ring assembly; 22. Air ring assembly; 23. Electrical switch; 23. F-type frame; 231. I-beam cylinder; 232. Insulating column; 233. U-shaped conductive spring; 2 34. Conductive connector 235. Extender ring gear 24. Reset spring 25. Inner pile shaft 26. Spring 27. Unit bar 28. Press ring 29. C-type spring 30. Integrated ring plate 31. Fine hole cylinder 32. Gas distribution pipe 33. Piston arc column 34. Upper worm gear 35. Upper shaft 36. Upper frame 37. Push seat 38. Swing pressure frame 39. Lever shaft 40. Switching plate 41. Scroll plate 42. Lower worm gear 43. Lower frame 44. Flat shaft 45. Lead-out shaft 46. Arch frame 47. Folding pressure frame 48. Roller 49. Arc column rack 50. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the technical solutions of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Please see Figures 1 to 17 This invention provides a technical solution: a cylindrical battery sealing machine device with a verification mechanism, comprising an organic base 1, a gantry frame 2 fixed above the base 1, a lifting platform 3 that moves up and down within the gantry frame 2, a crimping module 4 connected to the lower part of the lifting platform 3, and two semi-molds 5 disposed below the crimping module 4. A cylindrical battery 6 is held between the two semi-molds 5. The crimping module 4 pushes and crimps the top edge shell 61 on the cylindrical battery 6. A prior art lifting drive mechanism is connected above the lifting platform 3 to control the synchronous lifting and lowering of the lifting platform 3 and the crimping module 4. After the crimping module 4 descends to a predetermined position, it maintains a constant height. Figure 4 The display location is used to seal the cylindrical batteries 6 one by one. The rolled edge module 4 includes: The circular column 7 fixed on the lifting platform 3, the large ring bevel gear 8 fixed at the bottom of the circular column 7, the outer cylinder gear ring 9 movably sleeved in the ring groove on the outside of the circular column 7, and the ring frame 10 fixed below the outer cylinder gear ring 9. The rigid-flexible converter 11 is installed in the ring frame 10, and the crimping head 12 driven at the bottom of the rigid-flexible converter 11 is connected to the top of the rigid-flexible converter 11 and the large ring bevel gear 8. The crimping head 12 flexibly pushes the top edge shell 61 in motion. After the top edge shell 61 is rolled flat, the crimping head 12 rigidly pushes the top edge shell 61 in motion.

[0039] A motor drive mechanism from the prior art is installed on the lifting platform 3 to drive the outer cylinder gear ring 9 to rotate, thereby causing the ring frame 10, the rigid-flexible converter 11 and the edge rolling head 12 to rotate synchronously. The edge rolling head 12 gradually pushes the top edge shell 61 while rapidly rotating, thereby causing the top edge shell 61 to gradually bend and fold inward at various points.

[0040] Reference Appendix Figure 6 It is understood that the rigid-flexible converter 11 includes a lever pressing device 13 that establishes a transmission with the large ring bevel gear 8, a rear drive device 14 for driving the crimped head 12, and a conversion device 15 that links the lever pressing device 13 and the rear drive device 14.

[0041] Reference Appendix Figure 6 and attached Figure 7 It is understood that the conversion device 15 includes: The intermediate frame 16 is fixed on the ring frame 10, and the amplifying shaft 17 and the central shaft 18 are simultaneously supported on the intermediate frame 16. The amplifying shaft 17 is driven by a fixed disc gear and the gear fixed at the top of the central shaft 18. A circular cover frame 19 fixed at the bottom of the central shaft 18, a ratchet disk 20 distributed in the circular cover frame 19, and a rigid-flexible ring assembly 21 that applies pressure between the ratchet disk 20 and the circular cover frame 19; A gas ring assembly 22 is installed on the round cover frame 19, and an electric switch 23 that contacts the drive on one side of the gas ring assembly 22; The ratchet disc 20 is surrounded by an extended ring gear 24 fixed below it, a return spring 25 fixed inside the extended ring gear 24, and an inner stud shaft 26 fixed in the middle of the return spring 25. The inner stud shaft 26 is also movably sleeved in a through hole opened in the middle of the ratchet disc 20.

[0042] Reference Appendix Figure 10 Understandably, the rigid-flexible ring assembly 21 includes a hair-pressing ring 29 that is arranged around the top of the round cover frame 19, multiple unit bars 28 that are vertically arranged around the hair-pressing ring 29, a spring 27 that is fitted on each unit bar 28, and a C-shaped spring piece 30 that is correspondingly arranged at one end of each unit bar 28. The unit bars 28 slide through the through holes opened in the round cover frame 19, and the springs 27 are supported between the round cover frame 19 and the hair-pressing ring 29.

[0043] Reference Appendix Figure 10It is understood that multiple protrusions are arranged around the inside of the round cover frame 19, one end of the C-shaped spring 30 is fixed on the protrusion of the round cover frame 19, multiple protrusions are arranged around the outside of the ratchet disk 20, and the other end of the C-shaped spring 30 contacts the protrusion of the ratchet disk 20. The unit bar 28 is provided with a tip that is inserted into the C-shaped spring 30 to support the C-shaped spring 30.

[0044] Reference Appendix Figure 11 Understandably, the gas ring assembly 22 includes multiple gas distribution pipes 33 that are arranged around the edge of the round cover frame 19, a piston arc column 34 that extends and retracts in an arc-shaped tube at one end of the gas distribution pipe 33, a fine orifice cylinder 32 that extends and retracts at the other end of the gas distribution pipe 33, and an integrated ring plate 31 that is arranged around the outside of the round cover frame 19. The integrated ring plate 31 and the fine orifice cylinder 32 are fixedly connected, and each piston arc column 34 is fixedly connected to a protrusion on the ratchet disc 20. Electrical switch 23 controls the power supply to and from the signal transmitter located inside the ring frame 10. The integrated ring plate 31 moves axially to open electrical switch 23 and provide power. (See attached diagram) Figure 12 The electrical switch 23 includes an F-shaped frame 231 fixed on the intermediate frame 16, a U-shaped conductive spring 234 fixed on the F-shaped frame 231 and two conductive connectors 235, an insulating post 233 sliding in a through hole in the F-shaped frame 231, and an I-beam 232 fixedly sleeved on the insulating post 233. The integrated ring plate 31 and the I-beam 232 are engaged. When the insulating post 233 rises, it is blocked by the horizontal plate on the F-shaped frame 231. When the insulating post 233 falls, it pushes one end of the U-shaped conductive spring 234. After the U-shaped conductive spring 234 bends, it contacts the two conductive connectors 235. In this way, the circuit controlled by the electrical switch 23 is unblocked, and the signal transmitter sends an alarm signal after being powered on.

[0045] As the crimping head 12 rotates, it gradually pushes against the top edge shell 61. The transmission path of the local pressure applied to the crimping head 12 is from the round cover frame 19 to the ratchet disc 20. Specifically, the rotation of the round cover frame 19 drives multiple C-shaped springs 30 arranged in a ring. The C-shaped springs 30 push the ratchet disc 20 to rotate. The C-shaped springs 30 apply elastic force. Thus, the initial pressing of the crimping head 12 is a flexible force, while the later pressing becomes a rigid pressing. The elastic function of the C-shaped springs 30 disappears because, in the later stage, the unit rod 28 is inserted into the C-shaped springs 30. (See attached diagram.) Figure 10 Understandably, the C-shaped spring 30 is supported internally by the inserted unit bar 28. The counterclockwise rotation of the round cover frame 19 will directly drive the unit bar 28, and then apply a pushing force directly to the protrusion on the ratchet disk 20 through the C-shaped spring 30. The C-shaped spring 30 no longer applies elastic force, so the elastic force in the transmission path disappears and becomes a rigid transmission.

[0046] Under normal transmission conditions, the ring frame 10, the rigid-flexible converter 11, and the flange head 12 rotate synchronously. The flange head 12 pushes against the top edge shell 61. During this process, the round cover frame 19 pushes against the ratchet disc 20 through the C-shaped spring 30. The C-shaped spring 30 deforms and contracts, and... Figure 11 The round cover frame 19 moves counterclockwise around the ratchet disc 20 protrusion, and the piston arc column 34 is pulled out from the air distribution pipe 33. During the extraction process, the fine-hole cylinder 32 and the integrated ring plate 31 tend to rise under the negative pressure suction, but the integrated ring plate 31 is blocked by the I-beam cylinder 232 and will not rise because the top of the insulating column 233 is blocked. In abnormal transmission conditions, such as when the crimping head 12 does not completely rotate around the top edge shell cylinder 61, that is, the axis of the cylindrical battery 6 and the axis of the crimping head 12 are not collinear, the cylindrical battery 6 will unexpectedly deviate from its position. When the edge 12 moves around to the top edge of the cylindrical battery 6 in the direction it deviates from, the edge 12 can still push. Conversely, when the edge 12 moves around to a position away from the cylindrical battery 6, the resistance that the edge 12 may experience decreases, or even the edge 12 and the top edge of the cylindrical battery 6 may not contact each other, meaning the resistance disappears. Then, for the round cover frame 19 and the ratchet disc 20 on the pressure transmission path, the round cover frame 19 pushes the ratchet disc 20 through the C-shaped spring 30. The resistance to the ratchet disc 20's forward movement disappears, and the C-shaped spring 30 immediately returns to its full state, meaning the attachment... Figure 11 The protrusions of the round cover frame 19 and the ratchet disc 20 are relatively far apart, and the piston arc column 34 is inserted into the air distribution pipe 33. The air pressure in the air distribution pipe 33 is rapidly applied to the fine-hole cylinder 32, which drives the integrated ring plate 31 to descend. Figure 12 The integrated ring plate 31 drives the I-beam 232 to descend, and the bottom end of the insulating column 233 pushes the U-shaped conductive spring 234. After the U-shaped conductive spring 234 swings down, it contacts the two conductive joints 235, thus the control circuit of the electric switch 23 is unblocked. After the signal transmitter is powered on, it sends a signal. The main terminal of the sealing machine receives the signal and controls the sealing machine to stop working, so as to promptly troubleshoot the problem and correct the position of the cylindrical battery 6. The above describes the pushing and rolling stage of the cylindrical battery 6 by the edge rolling head 12 when the ring frame 10, the rigid-flexible converter 11 and the edge rolling head 12 rotate synchronously. During the flexible pushing stage, the main terminal of the sealing machine receives the signal and triggers an emergency stop. However, during the later rigid pushing stage and the reset stage after pushing, although the protrusion of the round cover frame 19 and the protrusion of the ratchet disk 20 separate again, causing a signal to be emitted, the main terminal receives the signal and does not perform emergency stop control because the top shell 61 has been folded inward and flattened, and the processing is successful. There was no deviation alarm before this, so the subsequent signal emission can be ignored.

[0047] The lever pressing device 13 includes an upper frame 37 fixed on the ring cylinder frame 10, an upper worm gear 35, an upper shaft 36, and a lever shaft 40 simultaneously supported on the upper frame 37, and a swing pressing frame 39 and a switching plate 41 fixed on the lever shaft 40. The swing pressing frame 39 is provided with an arc-shaped rack to mesh with a gear fixed at the end of the amplifying shaft 17. The switching plate 41 presses the rounded corner of the inner edge of the pressing ring 29 by swinging. One end of the upper worm gear 35 meshes with the large ring bevel gear 8 through a fixed bevel gear, and one end of the upper shaft 36 drives the upper worm gear 35 through a fixed worm wheel. (See attached diagram) Figure 13 It is understood that the upper worm gear 35, the upper shaft 36 and the lever shaft 40 are respectively movably sleeved in different through holes opened on the upper frame 37. Under the support of the upper frame 37, the main body of the lever pressing device 13 rotates synchronously with the ring cylinder frame 10.

[0048] The lever pressing device 13 also includes a pusher 38 that slides through a square hole in the upper frame 37, and a volute 42 for pushing the pendulum pressing frame 39. The volute 42 is fixed to the end of the upper shaft 36. The outer wall of the volute 42 is a volute sidewall that gradually moves away from the central axis of the volute 42. The volute 42 pushes the pusher 38 by rotating. After the volute 42 rotates one full revolution, the pusher 38, which has lost its support, automatically resets. The outer end of the volute sidewall of the volute 42 is provided with an arc surface.

[0049] Reference Appendix Figure 14 As the volute 42 rotates counterclockwise, it gradually pushes the pusher 38, which in turn pushes the pendulum pressure frame 39. Later in the rotation of the volute 42, the arc surface on the volute 42 pushes the pusher 38, which does not move. After the volute 42 completes one revolution, the pusher 38 automatically resets. The pressure source for the reset is the reset spring 25. The transition from flexible to rigid is that the switching plate 41 will press the pressure ring 29 in the later stage of its swing, causing the pressure ring 29 to move axially and descend. The pressure ring 29 drives all the unit bars 28, which are inserted into the C-shaped spring 30. As a result, the push between the round cover frame 19 and the ratchet disk 20 changes from flexible to rigid.

[0050] While the ring frame 10, the rigid-flexible converter 11, and the crimping head 12 rotate synchronously, a transmission analysis is performed on the internal rigid-flexible converter 11: the upper worm gear 35 rotates around the relatively stationary large ring bevel gear 8, causing the upper worm gear 35 to rotate rapidly. The upper worm gear 35 further transmits to the upper shaft 36, which in turn rotates to push the push seat 38. The push seat 38 pushes the swing frame 39 to swing, which in turn transmits to the central shaft 18 via the amplifying shaft 17, causing the round cover frame 19 to rotate. Subsequently, the C-shaped spring 30 pushes the ratchet disc 20, which drives the range extender ring gear 24 to rotate. During this process, the reset spring 25 is wound up, and the range extender ring gear 24 further transmits to the rear drive device 14. This causes the crimping head 12 to push against the top shell 61, thereby sealing the crimped edge. After the top shell 61 is initially folded inward and flattened, the flexible pressure application ends, and then the rigid pressure application begins. Because the lever shaft 40 in the path drives the switching plate 41, the switching plate 41 swings and presses against the pressure ring 29. As mentioned before, the pressure application changes to rigid pressure application. The rigid push of the crimping head 12 makes the initially flattened top shell 61 gradually flattened. During the process, the crimping head 12 will maintain a flat pressure state and will not push further because the arc surface on the volute disk 42 in the drive path is in contact with the push seat 38 and will not push further. Therefore, the crimping head 12 at the end no longer pushes further, but rotates horizontally.

[0051] After the volute 42 completes one revolution, the pusher 38 automatically resets and moves, the reset spring 25 releases pressure, and the ratchet disc 20 reverses direction. The transmission path components between the ratchet disc 20 and the swing frame 39 automatically reset, and at the same time, the transmission path components between the ratchet disc 20 and the end of the crimping head 12 also automatically reset, and the crimping head 12 returns to its original position. Figure 4 The status displayed in the middle.

[0052] The rear drive unit 14 includes a lower frame 44 fixed on the ring frame 10, and a lower worm gear 43, a flat shaft 45 and a lead-out shaft 46 simultaneously supported on the lower frame 44. The end of the lower worm gear 43 meshes with the range-extending ring gear 24 through a fixed gear. One end of the flat shaft 45 drives the lower worm gear 43 through a fixed worm wheel, and the other end of the flat shaft 45 drives the lower worm gear 43 through a fixed bevel gear and the bevel gear fixed on the lead-out shaft 46 through a fixed bevel gear. The lower worm gear 43, the flat shaft 45 and the lead-out shaft 46 are respectively movably sleeved in different through holes opened on the lower frame 44.

[0053] The crimping head 12 includes an arched frame 47 fixed on the lower frame 44, a pressing frame 48 sliding on the arched frame 47, a roller 49 supported on the inner side of the pressing frame 48, and an arc-shaped rack 50 fixed on the outer side of the pressing frame 48. The arc-shaped rack 50 and the gear fixed at the end of the lead-out shaft 46 mesh and drive each other. An arc plate is provided on the arched frame 47 to pass through the arc plate hole opened on the pressing frame 48. The roller 49 surrounds and pushes the top edge shell 61.

[0054] Reference Appendix Figure 16 and attached Figure 17 The extended-range ring gear 24 rotates to drive the lower worm gear 43 to rotate, and then the shaft 46 is driven out through the flat shaft 45. Next, the arc-shaped rack 50 drives the bending frame 48 to rotate 90 degrees, so the central roller 49 rotates 90 degrees. During the process, the roller 49 completes multiple revolutions, and the top edge shell 61 being pushed gradually folds inward. During the inward folding process, the roller 49 pushes flexibly. After the top edge shell 61 is flattened, the roller 49 becomes rigid and compresses, so that the top edge shell 61 is precisely bent and shaped.

[0055] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cylindrical battery sealing machine device with a verification mechanism, characterized in that: The device includes an organic base, a gantry frame fixed above the base, a lifting platform that moves up and down within the gantry frame, a crimping module connected to the lower part of the lifting platform, and two semi-molds disposed below the crimping module. A cylindrical battery is held between the two semi-molds. The crimping module pushes and crimps the top edge of the cylindrical battery. The crimping module includes: The circular column fixed on the lifting platform, the large ring bevel gear fixed at the bottom of the circular column, the outer cylinder gear ring movably sleeved in the ring groove on the outside of the circular column, and the ring frame fixed below the outer cylinder gear ring. The rigid-flexible converter is installed in the ring frame, and the bottom of the rigid-flexible converter is driven by a curling head. The top of the rigid-flexible converter is connected to the large ring bevel gear. The curling head flexibly pushes the top edge shell during the movement. After the top edge shell is rolled flat inside, the curling head rigidly pushes the top edge shell during the movement.

2. The cylindrical battery sealing machine device with a verification mechanism according to claim 1, characterized in that: The rigid-flexible converter includes a lever pressing device that establishes a transmission with the large ring bevel gear, a rear drive device for driving the crimped head, and a conversion device that links the lever pressing device and the rear drive device.

3. The cylindrical battery sealing machine device with a verification mechanism according to claim 2, characterized in that: The conversion device includes: A center frame fixed on a ring frame, and an amplifying shaft and a central shaft simultaneously supported on the center frame, wherein the amplifying shaft is driven by a fixed disc gear meshing with a gear fixed at the top of the central shaft. A circular cover frame fixed at the bottom of the central shaft, ratchet discs distributed within the circular cover frame, and a rigid-flexible ring assembly that applies pressure between the ratchet discs and the circular cover frame; An air ring assembly mounted on the round cover frame, and an electric switch that contacts the drive on one side of the air ring assembly; The device consists of an extended ring gear fixed below the ratchet disc, a reset spring fixed inside the extended ring gear, and an inner stud shaft fixed in the middle of the reset spring. The inner stud shaft is also movably sleeved in a through hole opened in the middle of the ratchet disc.

4. The cylindrical battery sealing machine device with a verification mechanism according to claim 3, characterized in that: The rigid-flexible ring assembly includes a hair-pressing ring encircled above the round cover frame, multiple unit bars vertically encircled on the hair-pressing ring, a spring fitted on each unit bar, and a C-shaped spring piece corresponding to one end of each unit bar. The unit bars slide through the through holes opened on the round cover frame, and the springs are supported between the round cover frame and the hair-pressing ring.

5. The cylindrical battery sealing machine device with a verification mechanism according to claim 4, characterized in that: Multiple protrusions are arranged around the inside of the round cover frame. One end of the C-shaped spring is fixed on the protrusion of the round cover frame. Multiple protrusions are arranged around the outside of the ratchet disk, and the other end of the C-shaped spring contacts the protrusion that pushes the ratchet disk. A pointed tip is provided on the unit bar and inserted into the C-shaped spring to support the C-shaped spring.

6. The cylindrical battery sealing machine device with a verification mechanism according to claim 5, characterized in that: The gas ring assembly includes multiple gas distribution pipes that are arranged around the edge of the round cover frame, a piston arc column that extends and retracts in an arc-shaped tube at one end of the gas distribution pipe, a fine-hole cylinder that extends and retracts at the other end of the gas distribution pipe, and an integrated ring plate that is arranged around the outside of the round cover frame. The integrated ring plate and the fine-hole cylinder are fixedly connected, and each piston arc column is fixedly connected to a protrusion on the ratchet disc. An electric switch controls the power supply to and from the signal transmitter located inside the ring frame. The integrated ring plate moves axially to open the electric switch and supply power.

7. The cylindrical battery sealing machine device with a verification mechanism according to claim 4, characterized in that: The lever pressing device includes an upper frame fixed on the ring cylinder frame, an upper worm gear, an upper shaft and a lever shaft simultaneously supported on the upper frame, and a swing pressing frame and a switching plate fixed on the lever shaft. The swing pressing frame is provided with an arc-shaped rack to mesh with a gear fixed at the end of the amplification shaft. The switching plate presses the rounded corner set on the inner edge of the pressing ring by swinging. One end of the upper worm gear meshes with the large ring bevel gear through a fixed bevel gear, and one end of the upper shaft drives the upper worm gear through a fixed worm wheel.

8. The cylindrical battery sealing machine device with a verification mechanism according to claim 7, characterized in that: The lever pressing device also includes a pusher that slides through a square hole in the upper frame, and a volute disk for pushing the pendulum pressing frame. The volute disk is fixed to the end of the upper shaft. The outer wall of the volute disk is a vortex sidewall that gradually moves away from the central axis of the volute disk. The volute disk pushes the pusher by rotating. After the volute disk completes one revolution, the pusher that has lost support automatically resets. An arc surface is provided at the outer end of the vortex sidewall of the volute disk.

9. The cylindrical battery sealing machine device with a verification mechanism according to claim 3, characterized in that: The rear drive device includes a lower frame fixed on the ring frame, and a lower worm, a flat shaft and a lead-out shaft supported on the lower frame. The end of the lower worm meshes with the range-extending ring gear through a fixed gear. One end of the flat shaft drives the lower worm through a fixed worm wheel, and the other end of the flat shaft drives the lower worm through a fixed bevel gear fixed on the lead-out shaft.

10. A cylindrical battery sealing machine device with a verification mechanism according to claim 9, characterized in that: The crimping head includes an arched frame fixed on the lower frame, a pressing frame sliding on the arched frame, rollers supported on the inner side of the pressing frame, and an arc-shaped rack fixed on the outer side of the pressing frame. The arc-shaped rack and the gear fixed at the end of the lead-out shaft mesh and drive each other. An arc plate is provided on the arched frame to pass through the arc plate hole opened on the pressing frame. The rollers surround and push the top edge shell cylinder.

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