A stamping device for the positive electrode battery cover of a soft-pack graphene lithium battery cell

Abstract

The present invention discloses a stamping device for the positive battery cover of a soft-pack graphene lithium battery cell, which includes a steel strip, a base, a feeding mechanism, a die holder, a punching and cutting mechanism, and a linkage mechanism. The punching and cutting mechanism includes a lifting seat, a punching and cutting seat, and a hydraulic cylinder. The linkage mechanism includes a mounting seat and a connecting rod member. The beneficial effect of the present invention is that the present invention drives the lifting seat and the punching and cutting seat to perform reciprocating lifting movements through the hydraulic cylinder. When the lifting seat and the punching and cutting seat descend, the die holder is driven to move leftward through the linkage mechanism. When the punching and cutting seat descends, circular materials are punched out on the steel strip. Through the cooperation of the forming cavity and the punch, the finished positive battery cover is stamped. When the lifting seat and the punching and cutting seat ascend, the die holder is driven to move rightward through the linkage mechanism, which facilitates the unloading of the finished product. Moreover, the feeding mechanism can realize the movement of the steel strip, that is, the device can automatically realize processes such as punching and cutting, stamping, unloading, and steel strip feeding, which can simplify the processing flow and improve the processing speed.

Description

Technical Field

[0001] The present invention relates to a stamping device for the positive electrode battery cover of a soft-pack graphene lithium battery cell. Through the mutual cooperation of a feeding mechanism, a punching mechanism and a linkage mechanism, automatic stamping of the positive electrode cover can be achieved. Background Art

[0002] The charge and discharge speed of a lithium-ion battery is determined by the transmission and insertion / extraction speed of lithium ions in the electrode. Graphene has excellent electronic and ionic conduction properties and a special two-dimensional single-atom layer structure, and can form a three-dimensional electronic and ionic transmission network structure among the electrode material particles. Therefore, compared with traditional lithium batteries, graphene lithium batteries have extremely high charge and discharge speeds.

[0003] A graphene lithium battery is assembled by arranging multiple cells in series. The positive electrode cover is one of the components of the cell and is generally processed by stamping. When the existing stamping equipment is used, first, a circular sheet is placed on the lower die, and the upper die is driven to descend by a hydraulic cylinder. Through the cooperation of the upper and lower dies, a positive electrode cover with a specific shape is formed. The degree of automation is low and the processing efficiency is low.

[0004] For example, a stamping fixture for an explosion-proof aluminum sheet of a battery cap disclosed in a Chinese patent with the patent application number: CN201821407621.1 realizes the stamping and forming of the battery cover through the cooperation of a punching head and a lower die seat. However, this patent has at least the following problems:

[0005] Firstly, the raw material for production is circular, but in the actual processing process, the raw material for producing the battery cover generally appears in the form of a steel strip. In this invention, the steel strip first needs to be cut into a circular shape with a specific size before subsequent processing, resulting in more processes and low processing efficiency;

[0006] Secondly, during the processing of the battery cover, the degree of automation of loading and unloading the finished product is not high. Summary of the Invention

[0007] To solve the above problems, the present invention provides a stamping device for the positive electrode battery cover of a soft-pack graphene lithium battery cell, and the present invention is realized through the following technical solutions.

[0008] A stamping device for the positive electrode battery cover of a soft-pack graphene lithium battery cell includes a steel strip, and further includes:

[0009] A base, a support plate is fixedly connected to the right side of the base, a receiving cavity is opened at the position corresponding to the support plate on the right side of the base, L-shaped positioning plates are symmetrically and fixedly connected to the support plates on both sides of the receiving cavity, chutes are opened on the inner sides of the positioning plates and the front and rear inner walls of the receiving cavity, a longitudinal conveying groove is opened on the upper surface of the base, and a punching groove leading to the receiving cavity is opened in the middle of the conveying groove;

[0010] A feeding mechanism, which is symmetrically arranged front and back on the upper surface of the base. The steel belt is located in the conveying groove, and the feeding mechanism is used to drive the steel belt to move longitudinally;

[0011] A die holder, which is slidably connected between the positioning plates. The size of the die holder is consistent with that of the accommodating cavity. Sliders corresponding to the sliding grooves are fixedly connected to the front and back sides of the die holder. A groove is formed on the upper surface of the die holder, and a punch is provided at the bottom of the groove;

[0012] A punching mechanism, which includes a lifting seat, a punching seat and a hydraulic cylinder; Four guide rods are fixedly connected in a rectangular shape at the position corresponding to the punching groove on the upper surface of the base. The four corners of the lifting seat are slidably connected to the guide rods. The punching seat is fixedly connected to the lower surface of the lifting seat. The vertical projection of the punching seat coincides with the punching groove. A forming cavity adapted to the punch is formed on the lower surface of the punching seat. A seat plate is fixedly connected to the top of the guide rod. The hydraulic cylinder is fixedly connected to the center of the seat plate. The hydraulic cylinder is provided with a vertically downward piston rod, and the bottom of the piston rod is fixedly connected to the upper surface of the lifting seat;

[0013] A linkage mechanism, which includes a mounting seat and a connecting rod member; The mounting seat is fixedly connected to the right side of the lifting seat through uniformly arranged longitudinal support rods. A support plate is fixedly connected to the right side of the mounting seat. A limiting rod is longitudinally and slidably connected to the support plate. The bottom of the limiting rod is fixedly connected to the supporting plate, and an anti - detachment block is fixedly connected to the top of the limiting rod. Shaft rods are fixedly connected to the lower surface of the mounting seat and the right side of the die holder, and the connecting rod member is hinged between the shaft rods.

[0014] Further, rolling grooves are formed on the front and back sides of the conveying groove, and rollers are longitudinally and uniformly rotatably connected in the rolling grooves. The top of the roller is flush with the conveying groove.

[0015] Further, the connecting rod member includes a telescopic rod, rotating seats symmetrically fixedly connected to both ends of the telescopic rod, and a telescopic spring sleeved outside the telescopic rod. The two rotating seats are respectively rotatably connected to the corresponding shaft rods;

[0016] When the piston rod is in the minimum contraction state, the die holder contacts the inner wall of the right side plate of the positioning plate. At this time, the telescopic rod is in a vertical state and the telescopic spring is in a natural state;

[0017] When the die holder completely enters the accommodating cavity and the telescopic spring is in a natural state, the punching seat is located above the base;

[0018] When the piston rod is in the maximum extension state, the distance between the lower surface of the punching head and the bottom surface of the groove is equal to the thickness of the steel belt.

[0019] Further, the feeding mechanism includes a transmission chamber, a feeding component, and a motor; the transmission chamber is fixedly connected to the left side of the conveying groove, and an ear seat is fixedly connected to the right side of the conveying groove. Both ends of the feeding component are symmetrically and fixedly connected with first rotating shafts, and the first rotating shafts on the left and right sides are respectively rotationally connected to the transmission chamber and the ear seat. The head of the first rotating shaft on the left side extends into the transmission chamber and is fixedly connected with a driven bevel gear. A second rotating shaft is also rotationally connected in the transmission chamber, and a driving bevel gear meshing with the driven bevel gear is fixedly connected to the second rotating shaft. The motor is fixedly connected to the base through a machine base, and one end of the second rotating shaft is docked with the output shaft of the motor through a coupling.

[0020] Further, the feeding component includes a turntable and a sliding rod; both the left and right sides of the turntable are symmetrically and fixedly connected with first rotating shafts. The turntable is a regular polygon, and sliding cavities are provided inside the turntable corresponding to its respective side surfaces. A sliding seat is slidably connected in the sliding cavity, and a ejecting spring is fixedly connected between the sliding seat and the bottom of the sliding cavity. The sliding rod is fixedly connected to the sliding seat and is slidably connected to the turntable. The head of the sliding rod is fixedly connected with an arc-shaped plate, and an arc-shaped rubber pad is fixedly connected to the outer wall of the arc-shaped plate.

[0021] Further, a discharging mechanism is further included. The discharging mechanism includes a blower and a discharging seat; the height of the front positioning plate is less than the thickness of the die base, and the height of the rear positioning plate is greater than the thickness of the die base. An air cavity is provided on the upper surface of the supporting plate. Through holes are evenly arranged in a circular pattern corresponding to the grooves in the die base. When the die base contacts the right side plate of the positioning plate, the vertical projection of the through holes is located in the air cavity. Jet sub-tubes are evenly and horizontally fixedly connected to the rear positioning plate. Nozzles are fixedly connected to the front ends of the jet sub-tubes, and a jet main tube is integrally fixedly connected to the rear ends of the jet sub-tubes. The blower is fixedly connected to the right side of the base. An air inlet pipe and an air outlet pipe are respectively fixedly connected to the inlet and outlet of the blower. A tee is fixedly connected to the head of the air outlet pipe, and the other two interfaces of the tee are respectively communicated with the jet main tube and the air cavity through air supply pipes. The discharging seat is fixedly connected to the front side of the supporting plate, and the upper surface of the discharging seat is inclined.

[0022] Further, the hydraulic cylinder works through a time relay controller. Under the action of the time relay, the hydraulic cylinder controls the piston rod to perform intermittent reciprocating telescopic movements. A triggering mechanism is also included. When the hydraulic cylinder brakes, the triggering mechanism starts the motor and the blower.

[0023] Furthermore, the trigger mechanism comprises a control box, a power connection block and a power connection rod; the control box is fixedly connected between the two guide rods on the left side, and wire grooves are provided on the front and rear sides of the control box. The power connection block is slidably connected in the control box and is symmetrically arranged front and back. A guide block is fixedly connected to the side of the power connection block, and a guide groove corresponding to the guide block is provided on the inner wall of the control box. An insulating spring is fixedly connected to the side of the power connection blocks away from each other, and a wire is also electrically connected to the side of the power connection blocks away from each other, and the wire passes through the wire groove. The end of the power connection blocks close to each other is a matching seat, and the size of the matching seat decreases in the direction pointing to the center of the control box. A through groove is provided in the center of the bottom plate of the control box, and the power connection rod is fixedly connected to the upper surface of the lifting seat and corresponds to the position of the through groove;

[0024] It also includes an external power supply, a first stage of the external power supply is electrically connected to one of the power blocks, one of the connection terminals of the motor and the blower is electrically connected to another power block, and the other connection terminal of the motor and the blower is electrically connected to the other pole of the external power supply.

[0025] Furthermore, when the guide block contacts the side of the guide groove close to the center of the control box, the insulating spring is in a natural state, and at this time the distance between the matching blocks is smaller than the longitudinal width of the power connection rod; when the piston rod is in the minimum contraction state, the top of the power connection rod is inserted between the matching blocks.

[0026] The beneficial effect of the present invention is that the present invention drives the lifting seat and the punching seat to perform reciprocating lifting and lowering motion through the hydraulic cylinder. When the lifting seat and the punching seat descend, the linkage mechanism drives the die base to move to the left and enter the accommodating cavity. When the punching seat descends, a circular material is punched out on the steel strip. The forming cavity and the punch cooperate to punch out the finished positive battery cover. When the lifting seat and the punching seat rise, the linkage mechanism drives the die base to slide from the accommodating cavity, thereby completing the unloading of the finished product, and the feeding mechanism can realize the movement of the steel strip, that is, the device can automatically realize the processes of punching, stamping, unloading and steel strip feeding, which can simplify the processing flow and improve the processing speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the description of the specific implementation methods will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 : An axonometric view of a punching device for a positive electrode battery cover of a soft-pack graphene lithium battery cell according to the present invention;

[0029] Figure 2: Three-dimensional schematic diagram of the rear right of the stamping device for the positive battery cover of a soft-pack graphene lithium battery cell according to the present invention;

[0030] Figure 3 : Top view of the stamping device for the positive battery cover of a soft-pack graphene lithium battery cell according to the present invention;

[0031] Figure 4 : Structural schematic diagram of the base according to the present invention;

[0032] Figure 5 : Three-dimensional schematic diagram of the die holder and the linkage mechanism according to the present invention;

[0033] Figure 6 : Three-dimensional schematic diagram below the lifting seat according to the present invention;

[0034] Figure 7 : Structural schematic diagram when the piston rod is in the minimum contracted state according to the present invention;

[0035] Figure 8 : Structural schematic diagram when the die holder completely enters the accommodation cavity and the telescopic spring is in the natural state according to the present invention;

[0036] Figure 9 : Structural schematic diagram when the piston rod is in the maximum extended state according to the present invention;

[0037] Figure 10 : Structural schematic diagram of the feeding mechanism according to the present invention;

[0038] Figure 11 : Half-sectional view of the feeding assembly according to the present invention;

[0039] Figure 12 : Structural schematic diagram of the unloading mechanism according to the present invention;

[0040] Figure 13 : Internal structural schematic diagram of the control box according to the present invention;

[0041] Figure 14 : Structural schematic diagram when the power connection rod does not enter the control box according to the present invention;

[0042] Figure 15 : Structural schematic diagram when the power connection rod enters the control box according to the present invention;

[0043] Figure 16 : Circuit connection schematic diagram of the motor and the blower according to the present invention.

[0044] Reference numerals are as follows:

[0045] A - steel strip; B - positive battery cover;

[0046] 1 - Base, 11 - Support plate, 12 - Accommodation cavity, 13 - Positioning plate, 14 - Slide groove, 15 - Conveyor groove, 16 - Punching groove, 17 - Rolling groove, 18 - Rotating roller;

[0047] 2 - Feeding mechanism, 21 - Transmission chamber, 22 - Feeding component, 221 - Turntable, 222 - Slide bar, 223 - Sliding cavity, 224 - Slide block, 225 - Ejecting spring, 226 - Arc plate, 227 - Arc rubber pad, 23 - Motor, 24 - Ear seat, 25 - First rotating shaft, 26 - Driven bevel gear, 27 - Second rotating shaft, 28 - Driving bevel gear, 29 - Coupling;

[0048] 3 - Die holder, 31 - Slide block, 32 - Groove, 33 - Punch;

[0049] 4 - Punching mechanism, 41 - Lifting seat, 42 - Punching seat, 43 - Hydraulic cylinder, 44 - Guide rod, 45 - Forming cavity, 46 - Seat plate, 47 - Piston rod;

[0050] 5 - Linkage mechanism, 51 - Mounting seat, 52 - Connecting rod member, 521 - Telescopic rod, 522 - Rotating seat, 523 - Telescopic spring, 53 - Support rod, 54 - Support plate, 55 - Limiting rod, 56 - Anti - detachment block, 57 - Shaft rod;

[0051] 61 - Blower, 62 - Discharging seat, 63 - Air cavity, 64 - Through hole, 65 - Jet sub - pipe, 66 - Nozzle, 67 - Jet main pipe, 68 - Air inlet pipe, 69 - Air outlet pipe, 610 - Tee, 611 - Air supply pipe;

[0052] 71 - Control box, 72 - Power connection block, 73 - Power connection rod, 74 - Wire groove, 75 - Guide block, 76 - Guide groove, 77 - Insulating spring, 78 - Wire, 79 - Fitting seat, 710 - Through slot, 711 - External power supply. Detailed implementation manners

[0053] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0054] As Figure 1-16 shown, the present invention has the following five specific embodiments.

[0055] Embodiment 1

[0056] A stamping device for the positive electrode battery cover of a soft - packaged graphene lithium - ion battery cell, including steel strip A, and further including:

[0057] Base 1, a support plate 11 is fixedly connected to the right side of the base 1. A receiving cavity 12 is formed at the position corresponding to the support plate 11 on the right side of the base 1. Symmetrically fixed on the support plate 11 on the front and rear sides of the receiving cavity 12 are L-shaped positioning plates 13. Sliding grooves 14 are formed on the inner side of the positioning plates 13 and the front and rear inner walls of the receiving cavity 12. A longitudinal conveying groove 15 is formed on the upper surface of the base 1. A punching groove 16 leading to the receiving cavity 12 is formed in the middle of the conveying groove 15.

[0058] Feeding mechanism 2, the feeding mechanisms 2 are symmetrically arranged on the upper surface of the base 1 in the front and rear directions. The steel belt A is located in the conveying groove 15. The feeding mechanism 2 is used to drive the steel belt A to move longitudinally.

[0059] Die base 3, the die base 3 is slidably connected between the positioning plates 13. The size of the die base 3 is the same as that of the receiving cavity 12. Sliders 31 corresponding to the sliding grooves 14 are fixedly connected to the front and rear sides of the die base 3. A groove 32 is formed on the upper surface of the die base 3. A punch 33 is formed at the bottom of the groove 32.

[0060] Punching mechanism 4, the punching mechanism 4 includes a lifting seat 41, a punching seat 42 and a hydraulic cylinder 43. Four guide rods 44 are fixedly connected in a rectangular shape on the upper surface of the base 1 corresponding to the position of the punching groove 16. The four corners of the lifting seat 41 are slidably connected to the guide rods 44. The punching seat 42 is fixedly connected to the lower surface of the lifting seat 41. The vertical projection of the punching seat 42 coincides with the punching groove 16. A forming cavity 45 adapted to the punch 33 is formed on the lower surface of the punching seat 42. A seat plate 46 is fixedly connected to the top of the guide rods 44. The hydraulic cylinder 43 is fixedly connected to the center of the seat plate 46. The hydraulic cylinder 43 is provided with a vertically downward piston rod 47. The bottom of the piston rod 47 is fixedly connected to the upper surface of the lifting seat 41.

[0061] Linkage mechanism 5, the linkage mechanism 5 includes a mounting seat 51 and a connecting rod member 52. The mounting seat 51 is fixedly connected to the right side of the lifting seat 41 through uniformly arranged longitudinal support rods 53. A support plate 54 is fixedly connected to the right side of the mounting seat 51. Limiting rods 55 are longitudinally and uniformly slidably connected to the support plate 54. The bottom of the limiting rods 55 is fixedly connected to the support plate 11. Anti-detachment blocks 56 are fixedly connected to the tops of the limiting rods 55. Shaft rods 57 are fixedly connected to the lower surface of the mounting seat 51 and the right side of the die base 3. The connecting rod member 52 is hinged between the shaft rods 57.

[0062] Preferably, rolling grooves 17 are formed on the front and rear sides of the conveying groove 15. Rotating rollers 18 are longitudinally and uniformly rotatably connected in the rolling grooves 17. The top of the rotating roller 18 is flush with the conveying groove 15.

[0063] In this embodiment:

[0064] During use, first place the steel belt A in the conveying groove 15. The feeding mechanism 2 can drive the steel belt A to move. Through the arrangement of the rotating rollers 18, the movement of the steel belt A is made smoother.

[0065] The hydraulic cylinder 43 can drive the piston rod 47 to extend or shorten, thereby moving the lifting seat 41 and the punching seat 42 up and down. Under the action of the support rod 53, the mounting seat 51 is lifted and lowered synchronously. The mounting seat 51 drives the die base 3 to move left and right through the connecting rod member 52.

[0066] As Figure 1 、 2 As shown in and 7, when in the initial position, the lifting seat 41 is at the high point. During the stamping process, the steel strip A remains stationary. The lifting seat 41 descends along the guide rod 44 and drives the mounting seat 51 to descend. When the mounting seat 51 descends, the die base 3 is driven to move leftward through the connecting rod member 52 and enters the receiving groove. When the die base 3 completely enters the receiving groove, the groove 32 is aligned with the punching groove 16.

[0067] When the lifting seat 41 extends and descends, it drives the punching seat 42 to descend. The punching seat 42 punches a circular sheet on the steel strip A and drives the sheet to descend. When the forming cavity 45 cooperates with the punch 33, the sheet can be stamped into the required shape, thus forming the required positive battery cover.

[0068] After stamping is completed, the piston rod 47 shortens, which drives the lifting seat 41 and the punching seat 42 to rise. At the same time, under the action of the linkage mechanism 5, the die base 3 slides out of the receiving cavity 12, facilitating the unloading and removal of the formed positive battery cover.

[0069] Embodiment 2

[0070] The connecting rod member 52 includes a telescopic rod 521, rotating seats 522 symmetrically fixed at both ends of the telescopic rod 521, and a telescopic spring 523 sleeved outside the telescopic rod 521. The two rotating seats 522 are respectively rotatably connected to the corresponding shaft rods 57;

[0071] When the piston rod 47 is in the minimum contraction state, the die base 3 contacts the inner wall of the right side plate of the positioning plate 13. At this time, the telescopic rod 521 is in the vertical state and the telescopic spring 523 is in the natural state;

[0072] As Figure 7 As shown, at this time the piston rod 47 is in the minimum contraction state, and the die base 3 is located outside the receiving cavity 12, facilitating the unloading of the formed positive battery cover from the groove 32.

[0073] When the die base 3 completely enters the receiving cavity 12 and the telescopic spring 523 is in the natural state, the punching seat 42 is located above the base 1;

[0074] As Figure 8 As shown, when the piston rod 47 extends, the lifting seat 41 and the punching seat 42 descend, and the die base 3 moves leftward. When the die base 3 completely enters the receiving cavity 12 and the spring is in the natural state, the punching seat 42 is located above the base 1. At this time, the groove 32 is aligned with the punching groove 16.

[0075] When the piston rod 47 is in the maximum extended state, the distance between the lower surface of the punching head and the bottom surface of the groove 32 is equal to the thickness of the steel strip A.

[0076] When the piston rod 47 continues to extend, as Figure 9 shown, the position of the die holder 3 remains stationary, that is, before stamping, the die holder 3 has been in place in advance. During the stamping process, the die holder 3 remains stationary. When the die holder 3 remains stationary and the lifting seat 41 continues to descend, the telescopic rod 521 shortens to accommodate the descent of the mounting seat 51. The punching seat 42 descends with the lifting seat 41 to complete the punching of the steel strip A to form a circular sheet. The punching seat 42 presses down the sheet. When the punch 33 cooperates with the forming cavity 45, the sheet can be processed into the required shape to form the positive battery cover.

[0077] Figure 9 In [description], during the process of forming the positive electrode, since the punch 33 causes the middle of the sheet to bulge, the edge position of the sheet will contract towards the center.

[0078] When the piston rod 47 shortens, the positional relationship between the lifting seat 41 and the die holder 3 changes from the state shown in Figure 9 to the state shown in Figure 8 and then to the state shown in Figure 7 , that is, each component resets, and the next processing can start again.

[0079] Embodiment 3

[0080] The feeding mechanism 2 includes a transmission chamber 21, a feeding assembly 22 and a motor 23; the transmission chamber 21 is fixedly connected to the left side of the conveying groove 15, an ear seat 24 is fixedly connected to the right side of the conveying groove 15, both ends of the feeding assembly 22 are symmetrically and fixedly connected with a first rotating shaft 25, and the left and right first rotating shafts 25 are respectively rotationally connected to the transmission chamber 21 and the ear seat 24. The head of the left first rotating shaft 25 extends into the transmission chamber 21 and is fixedly connected with a driven bevel gear 26. A second rotating shaft 27 is also rotationally connected in the transmission chamber 21, and a driving bevel gear 28 meshing with the driven bevel gear 26 is fixedly connected to the second rotating shaft 27. The motor 23 is fixedly connected to the base 1 through a machine base, and one end of the second rotating shaft 27 is butt-jointed with the output shaft of the motor 23 through a coupling 29.

[0081] Preferably, the feeding assembly 22 includes a turntable 221 and a slide bar 222; first rotating shafts 25 are symmetrically and fixedly connected to the left and right sides of the turntable 221. The turntable 221 is a regular polygon. Sliding cavities 223 are formed in the turntable 221 corresponding to its respective side surfaces. A slide seat 224 is slidably connected in the sliding cavity 223. A top spring 225 is fixedly connected between the slide seat 224 and the bottom of the sliding cavity 223. The slide bar 222 is fixedly connected to the slide seat 224 and is slidably connected to the turntable 221. An arc-shaped plate 226 is fixedly connected to the head of the slide bar 222. An arc-shaped rubber pad 227 is fixedly connected to the outer wall of the arc-shaped plate 226.

[0082] In this embodiment:

[0083] As Figure 10 shown, when the motor 23 operates, it drives the driving bevel gear 28 to rotate. The driving bevel gear 28 drives the driven bevel gear 26 meshing with it to rotate, so that the feeding assembly 22 rotates to convey the steel strip A.

[0084] As Figure 11 shown, under the action of the top spring 225, the slide bar 222, the arc-shaped plate 226 and the arc-shaped rubber pad 227 are ejected. The arc-shaped rubber pad 227 is in close contact with the steel strip A. The frictional force between the arc-shaped rubber pad 227 and the steel strip A drives the steel strip A to move forward for feeding.

[0085] Embodiment 4

[0086] It further includes a discharging mechanism. The discharging mechanism includes a blower 61 and a discharging seat 62; the height of the front side positioning plate 13 is less than the thickness of the die base 3, and the height of the rear side positioning plate 13 is greater than the thickness of the die base 3. An air cavity 63 is formed on the upper surface of the support plate 11. Through holes 64 are evenly formed in a circle in the die base 3 corresponding to the positions of the grooves 32. When the die base 3 contacts the right side plate of the positioning plate 13, the vertical projection of the through hole 64 is located in the air cavity 63. Jet sub-pipes 65 are horizontally and evenly fixedly connected to the rear side positioning plate 13. Nozzles 66 are fixedly connected to the front ends of the jet sub-pipes 65. Jet main pipes 67 are integrally fixedly connected to the rear ends of the jet sub-pipes 65. The blower 61 is fixedly connected to the right side of the base 1. An air inlet pipe 68 and an air outlet pipe 69 are respectively fixedly connected to the inlet and outlet of the blower 61. A tee 610 is fixedly connected to the head of the air outlet pipe 69. The other two interfaces of the tee 610 are respectively communicated with the jet main pipe 67 and the air cavity 63 through air supply pipes 611. The discharging seat 62 is fixedly connected to the front side of the support plate 11. The upper surface of the discharging seat 62 is inclined.

[0087] In this embodiment:

[0088] When the die holder 3 is moved out in place, the blower 61 works to send air into the air cavity 63. The air in the air cavity 63 is blown out through the through hole 64 to blow the formed positive electrode cover. When the blower 61 works, it also sprays air from the nozzle 66, so as to blow the formed positive electrode cover forward and slide it down from the unloading seat 62, that is, automatic unloading is realized.

[0089] Embodiment 5

[0090] The hydraulic cylinder 43 works through the time relay controller. Under the action of the time relay, the hydraulic cylinder 43 controls the piston rod 47 to perform intermittent reciprocating telescopic motion. It also includes a triggering mechanism. When the hydraulic cylinder 43 brakes, the triggering mechanism starts the motor 23 and the blower 61.

[0091] Preferably, the triggering mechanism includes a control box 71, a power connection block 72 and a power connection rod 73; the control box 71 is fixedly connected between the two guiding rods 44 on the left side. Wire grooves 74 are opened on the front and rear sides of the control box 71. The power connection blocks 72 are slidably connected in the control box 71 and are symmetrically arranged front and back. A guiding block 75 is fixedly connected to the side of the power connection block 72. A guiding groove 76 corresponding to the guiding block 75 is opened on the inner wall of the control box 71. An insulating spring 77 is fixedly connected to the side of the power connection block 72 away from each other. A wire 78 is also electrically connected to the side of the power connection block 72 away from each other. The wire 78 passes through the wire groove 74. The ends of the power connection blocks 72 close to each other are matching seats 79. The size of the matching seat 79 decreases along the direction pointing to the center of the control box 71. A through groove 710 is opened at the center of the bottom plate of the control box 71. The power connection rod 73 is fixedly connected to the upper surface of the lifting seat 41 and corresponds to the position of the through groove 710;

[0092] It also includes an external power supply 711. One pole of the external power supply 711 is electrically connected to one of the power connection blocks 72. One wiring terminal of the motor 23 and the blower 61 is commonly electrically connected to the other power connection block 72. The other wiring terminal of the motor 23 and the blower 61 is commonly electrically connected to the other pole of the external power supply 711.

[0093] Preferably, when the guiding block 75 contacts the side of the guiding groove 76 close to the center of the control box 71, the insulating spring 77 is in a natural state, and at this time, the distance between the matching blocks is less than the longitudinal width of the power connection rod 73; when the piston rod 47 is in the minimum contraction state, the top of the power connection rod 73 is inserted between the matching blocks.

[0094] In this embodiment:

[0095] As Figure 13-15 shown, when the lifting seat 41 rises, it will drive the power connection rod 73 to rise. When the piston rod 47 reaches the shortest contraction state, the power connection rod 73 is inserted between the power connection blocks 72, so that the circuits of the two power connection blocks 72 are conducted.

[0096] As Figure 16As shown, at this time, the circuits of the motor 23 and the blower 61 are turned on. That is, when the piston rod 47 is in the minimum contracted state, the motor 23 operates to feed the steel strip A, and the blower 61 operates to discharge the material.

[0097] That is, the overall working process of the present invention is as follows: The piston rod 47 is controlled by a time relay to perform intermittent reciprocating telescopic motion. That is, it is assumed that the piston rod 47 has a cyclic working time T1 and a braking time T2. During the T1 time period, the piston rod 47 first extends and then contracts. During the T2 time period, the piston rod 47 remains stationary.

[0098] When the piston rod 47 extends, the lifting seat 41 descends, and the die holder 3 enters the accommodation cavity 12 to complete the stamping operation. Since the power connection rod 73 descends synchronously with the lifting seat 41, that is, the two power connection blocks 72 are in an open circuit state. During the stamping process, the steel strip A remains stationary and the blower 61 stops operating.

[0099] When the piston rod 47 contracts, the lifting seat 41 rises and the die holder 3 slides out of the accommodation cavity 12. When the piston rod 47 is in the minimum contracted state, the piston rod 47 remains stationary. At this time, the vertical projection of the through hole 64 is placed in the air cavity 63.

[0100] Then, during the braking process of the piston rod 47, the motor 23 and the blower 61 operate. The motor 23 operates to complete the feeding of the steel strip A, and when the blower 61 operates, the discharging is completed.

[0101] If a cycle is required, the processes of cyclic stamping, discharging, and material feeding can be automatically realized.

[0102] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not elaborate on all the details, nor do they limit the invention to the specific implementation manners only. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present invention, so that those skilled in the relevant technical field can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A stamping device for the positive electrode battery cover of a soft-pack graphene lithium battery cell, including a steel strip, characterized in that, Further comprising: A base, a support plate is fixedly connected to the right side of the base, a receiving cavity is formed in the base corresponding to the position of the support plate on the right side, L-shaped positioning plates are symmetrically and fixedly connected to the support plates on both the front and rear sides of the receiving cavity, sliding grooves are formed on the inner sides of the positioning plates and the front and rear inner walls of the receiving cavity, a longitudinal conveying groove is formed on the upper surface of the base, and a punching groove communicating with the receiving cavity is formed in the middle of the conveying groove; A feeding mechanism, the feeding mechanism is symmetrically arranged on the upper surface of the base in the front and rear directions, the steel belt is located in the conveying groove, and the feeding mechanism is used for driving the steel belt to move longitudinally; A die base, the die base is slidably connected between the positioning plates, the size of the die base is the same as that of the receiving cavity, sliders corresponding to the sliding grooves are fixedly connected to both the front and rear sides of the die base, a groove is formed on the upper surface of the die base, and a punch is formed at the bottom of the groove; A punching mechanism, the punching mechanism includes a lifting seat, a punching seat and a hydraulic cylinder; four guiding rods are fixedly connected in a rectangular shape on the upper surface of the base corresponding to the position of the punching groove, the four corners of the lifting seat are slidably connected to the guiding rods, the punching seat is fixedly connected to the lower surface of the lifting seat, the vertical projection of the punching seat coincides with the punching groove, a forming cavity adapted to the punch is formed on the lower surface of the punching seat, a seat plate is fixedly connected to the top of the guiding rod, the hydraulic cylinder is fixedly connected to the center of the seat plate, the hydraulic cylinder is provided with a vertically downward piston rod, and the bottom of the piston rod is fixedly connected to the upper surface of the lifting seat; A linkage mechanism, the linkage mechanism includes a mounting seat and a connecting rod member; the mounting seat is fixedly connected to the right side of the lifting seat through longitudinally and uniformly arranged support rods, a support plate is fixedly connected to the right side of the mounting seat, a limiting rod is longitudinally and slidably connected to the support plate, the bottom of the limiting rod is fixedly connected to the support plate, an anti-detachment block is fixedly connected to the top of the limiting rod, a shaft rod is fixedly connected to the lower surface of the mounting seat and the right side of the die base, and the connecting rod member is hinged between the shaft rods; The connecting rod member includes a telescopic rod, swivel seats symmetrically fixedly connected to both ends of the telescopic rod, and a telescopic spring sleeved outside the telescopic rod, and the two swivel seats are respectively rotatably connected to the corresponding shaft rods; When the piston rod is in the minimum contraction state, the die base contacts the inner wall of the right side plate of the positioning plate, at this time the telescopic rod is in a vertical state and the telescopic spring is in a natural state; When the die base completely enters the receiving cavity and the telescopic spring is in a natural state, the punching seat is located above the base; When the piston rod is in the maximum extension state, the distance between the lower surface of the punching seat and the bottom surface of the groove is equal to the thickness of the steel belt.

2. The stamping device for the positive battery cover of a soft-pack graphene lithium battery cell according to claim 1, characterized in that, Rolling grooves are formed on both the front and rear sides of the conveying groove, and rollers are longitudinally and uniformly rotatably connected in the rolling grooves, and the top of the roller is flush with the conveying groove.

3. The stamping device for the positive battery cover of a soft-pack graphene lithium battery cell according to claim 1, wherein, The feeding mechanism includes a transmission bin, a feeding assembly and a motor; the transmission bin is fixedly connected to the left side of the conveying trough, and an ear seat is fixedly connected to the right side of the conveying trough. The first rotating shafts are symmetrically fixedly connected to the two ends of the feeding assembly, and the first rotating shafts on the left and right sides are respectively rotatably connected to the transmission bin and the ear seat. The head of the first rotating shaft on the left side extends into the transmission bin and is fixedly connected to a driven bevel gear. A second rotating shaft is also rotatably connected in the transmission bin, and an active bevel gear meshing with the driven bevel gear is fixedly connected to the second rotating shaft. The motor is fixedly connected to the base through a machine base, and one end of the second rotating shaft is butt-jointed with the output shaft of the motor through a coupling.

4. The stamping device for the positive battery cover of a soft-pack graphene lithium battery cell according to claim 3, characterized in that, The feed assembly includes a turntable and a sliding rod; the left and right sides of the turntable are symmetrically fixed to the first rotating shaft, the turntable is a positive multi-deformation, and a sliding cavity is opened inside the turntable corresponding to the position of each side thereof, a sliding seat is slidably connected in the sliding cavity, an ejection spring is fixed between the sliding seat and the bottom of the sliding cavity, the sliding rod is fixed to the sliding seat and slidably connected to the turntable, an arc plate is fixedly connected to the head of the sliding rod, and an arc rubber pad is fixedly connected to the outer wall of the arc plate.

5. The stamping device for the positive electrode battery cover of a soft-pack graphene lithium battery cell according to claim 4, wherein, The cam is provided with a tee and a plurality of tee ports, each of which has a plurality of through holes, each of which has a plurality of through holes, each of which has a plurality of through holes.

6. The stamping device for the positive battery cover of a soft-pack graphene lithium battery cell according to claim 5, characterized in that, The hydraulic cylinder works through a time relay controller. Under the action of the time relay, the hydraulic cylinder controls the piston rod to perform intermittent reciprocating telescopic motion. The hydraulic cylinder also includes a trigger mechanism. When the hydraulic cylinder brakes, the trigger mechanism starts the motor and the blower.

7. The stamping device for the positive electrode battery cover of a soft-pack graphene lithium battery cell according to claim 6, characterized in that, The trigger mechanism includes a control box, a power connection block and a power connection rod; the control box is fixedly connected between the two guide rods on the left side, and wire grooves are provided on the front and rear sides of the control box. The power connection block is slidably connected in the control box and is symmetrically arranged front and back. A guide block is fixedly connected to the side of the power connection block, and a guide groove corresponding to the guide block is provided on the inner wall of the control box. An insulating spring is fixedly connected to the side of the power connection blocks away from each other, and a wire is also electrically connected to the side of the power connection blocks away from each other, and the wire passes through the wire groove. The end of the power connection blocks close to each other is a matching seat, and the size of the matching seat decreases along the direction pointing to the center of the control box. A through groove is provided in the center of the bottom plate of the control box, and the power connection rod is fixedly connected to the upper surface of the lifting seat and corresponds to the position of the through groove; It further includes an external power supply. One stage of the external power supply is electrically connected to one of the power connection blocks, and one of the wiring terminals of the motor and the blower is commonly electrically connected to the other power connection block, and the other wiring terminals of the motor and the blower are commonly electrically connected to the other pole of the external power supply.

8. A stamping device for the positive electrode battery cover of a soft-pack graphene lithium battery cell according to claim 7, characterized in that, When the guiding block contacts the side of the guiding groove close to the center of the control box, the insulating spring is in a natural state, and at this time, the distance between the engaging blocks is less than the longitudinal width of the power connection rod; when the piston rod is in the minimum contraction state, the top of the power connection rod is inserted between the engaging blocks.

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