CN117798415A - Shaping and cutting device and method for tab for track lithium battery production - Google Patents
Shaping and cutting device and method for tab for track lithium battery production Download PDFInfo
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- CN117798415A CN117798415A CN202410234656.3A CN202410234656A CN117798415A CN 117798415 A CN117798415 A CN 117798415A CN 202410234656 A CN202410234656 A CN 202410234656A CN 117798415 A CN117798415 A CN 117798415A
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- tab
- upper cutter
- lithium battery
- cutting device
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- 238000005520 cutting process Methods 0.000 title claims abstract description 89
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 56
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 56
- 238000007493 shaping process Methods 0.000 title claims abstract description 33
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title abstract description 20
- 230000007246 mechanism Effects 0.000 claims description 47
- 230000000903 blocking effect Effects 0.000 claims description 28
- 238000000926 separation method Methods 0.000 claims description 20
- 238000003825 pressing Methods 0.000 claims description 17
- 230000009471 action Effects 0.000 claims description 10
- 238000005498 polishing Methods 0.000 claims description 7
- 230000001960 triggered effect Effects 0.000 claims description 6
- 230000008569 process Effects 0.000 description 13
- 230000004888 barrier function Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 230000001360 synchronised effect Effects 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 238000005491 wire drawing Methods 0.000 description 3
- 101100460844 Mus musculus Nr2f6 gene Proteins 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D15/00—Shearing machines or shearing devices cutting by blades which move parallel to themselves
- B23D15/02—Shearing machines or shearing devices cutting by blades which move parallel to themselves having both upper and lower moving blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D33/00—Accessories for shearing machines or shearing devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D33/00—Accessories for shearing machines or shearing devices
- B23D33/02—Arrangements for holding, guiding, and/or feeding work during the operation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention relates to the technical field of lithium battery manufacturing, in particular to a tab shaping and cutting device and a tab shaping and cutting method for track lithium battery production.
Description
Technical Field
The invention relates to the technical field of lithium battery manufacturing, in particular to a tab shaping and cutting device and method for track lithium battery production.
Background
Lithium batteries are batteries that use materials containing lithium elements as electrodes, and are representative of modern high-performance batteries.
The lithium battery 1 as shown in fig. 1, wherein a tab 2 is provided on one side of the lithium battery 1, the tab 2 is a metal conductor for leading out the positive and negative poles of the lithium battery 1, the tab is divided into a positive tab (Al) and a negative tab (Cu), which are formed by compounding two parts of a film and a metal strip, and the tab 2 of the lithium battery 1 needs to be cut before welding the tabs 2 in the lithium battery 1 in multiple groups, so that the lengths of the tabs 2 in the lithium battery 1 in multiple groups are kept consistent;
as shown in fig. 2, in the process of cutting the tab 2, the tab 2 is often cut by pressing the tab 2 under a cutting knife, but after the cutting is completed, the tab 2 is folded at the cutting position in the cutting manner;
in order to avoid the problem caused by the folding 3, in the conventional tab 2 cutting process, after the tab 2 cutting process is finished, the cut tab 2 is pressed again through the pressing mechanism, so that the problem of folding the tab 2 is solved.
The step in the production process of the lithium battery is undoubtedly increased by adding the lamination process after the tab is cut, corresponding equipment is added, and the failure rate in the production process of the lithium battery is increased, so the inventor designs a tab shaping and cutting device and a tab shaping and cutting method for producing the track lithium battery, which can reduce the lamination process after the tab is cut, and increase the production efficiency of the lithium battery.
Disclosure of Invention
The invention aims to provide a tab shaping and cutting device and method for producing an orbital lithium battery, which are used for solving the problems that in the conventional tab cutting process provided in the background art, the cut tab is pressed again through a pressing mechanism after the tab cutting process is finished, so that the problem of tab turnover is solved, but the step in the lithium battery production process is increased and corresponding equipment is increased by increasing the pressing process after tab cutting, and the failure rate in the lithium battery production process is increased.
In order to achieve the above purpose, the present invention provides the following technical solutions: the tab shaping and cutting device for the track lithium battery production comprises an upper cutter and a lower cutter, wherein cutting parts are arranged on the upper cutter and the lower cutter, a grid blocking mechanism for preventing the upper cutter and the lower cutter from being contacted is arranged between the bottom end of the upper cutter and the top end of the lower cutter, and a polishing part is arranged on one side of the bottom end of the upper cutter;
under the blocking effect of the grid blocking mechanism, the upper cutter and the lower cutter move in opposite directions to cut the tab incompletely, and then the upper cutter and the lower cutter simultaneously descend to complete cutting of the tab.
Under the arrangement, the problem that in the prior art, the tab is folded after being cut can be avoided, so that a pressing mechanism for finishing the tab cutting procedure can be directly reduced, equipment is reduced, and the problem of reworking rate in the lithium battery production process is solved;
in the cutting process, the tab is fed into the middle position of the upper cutter and the lower cutter by the feeding mechanism, the incomplete cutting of the tab is realized firstly through the opposite movement of the upper cutter and the lower cutter, and the turning moment generated when the upper cutter and the lower cutter are cut can be counteracted in the synchronous movement process of the upper cutter and the lower cutter, so that the turning problem after the tab is cut is effectively avoided;
in order to prevent the situation that the cutter becomes blunt due to the fact that the upper cutter and the lower cutter are contacted in the process of cutting by synchronous movement of the upper cutter and the lower cutter, a grid blocking mechanism is arranged between the upper cutter and the lower cutter, the grid blocking mechanism is arranged at the edge positions of the upper cutter and the lower cutter, the thickness of the grid blocking mechanism is far smaller than that of the tab, the tab which is cut off is in a semi-connection state with the tab on a lithium battery under the action of the grid blocking mechanism in the cutting process, then the upper cutter and the lower cutter simultaneously finish complete cutting of the tab, and a polishing part arranged at one side of the bottom end of the upper cutter passes through a notch in the process of continuing descending of the upper cutter, so that the cut is polished, burrs, wiredrawing and the like at the notch are reduced.
As the tab shaping and cutting device for producing the track lithium battery, preferably, the grid blocking mechanism is the separation sheets, the two separation sheets are respectively arranged at the bottom end of the upper cutter and the top end of the lower cutter, the bottom end of the upper cutter and the top end of the lower cutter are also provided with the touch-sensitive switches, and the touch-sensitive switches are triggered when the upper separation sheet and the lower separation sheet are contacted.
Under the arrangement, when the grid blocking mechanism is a separation sheet, the separation sheet can play a role of grid blocking when the upper cutter and the lower cutter are close, and after the two separation sheets are contacted, a touch-sensitive switch arranged at the bottom end of the upper cutter and the top end of the lower cutter can be triggered, at the moment, the movable end of the electric push rod can drive the upper cutter and the lower cutter to continue to move downwards, so that the electrode lugs at the cutting position are completely separated;
as the tab shaping and cutting device for producing the track lithium battery, the grid blocking mechanism preferably comprises the connecting plates, wherein the connecting plates are respectively and fixedly connected to one sides of the upper cutter and the lower cutter, the upper connecting plate is rotatably connected with the inclined rod through the hinge, the lower connecting plate is rotatably connected with the roller through the rotating shaft, the lower connecting plate is rotatably connected with the screw rod, and the roller protrudes out of the top hinge of the inclined rod to enable the inclined rod to be in an inclined state.
As the lug shaping and cutting device for producing the track lithium battery, the number of the lead screws is preferably two, the inclined rods are arranged between the two lead screws, the lead screws are rotatably connected with the circular rings, the baffle rods are fixedly connected between the two circular rings, when the upper cutter and the lower cutter are gradually close, the inclined rods are gradually inclined and blocked by the baffle rods, and the lead screws are provided with scale marks for obtaining the thickness of a gap between the upper cutter and the lower cutter.
As the tab shaping and cutting device for track lithium battery production, preferably, the baffle rod is provided with the touch-sensitive switch, and the inclined rod can trigger the touch-sensitive switch after gradually inclining.
Under the arrangement, because the thickness of the lug is thinner, in order to set the grid with proper thickness, the invention is also provided with a grid mechanism which can realize the direct and convenient grid thickness adjustment according to the thicknesses of different lugs;
according to the invention, the connecting plates are arranged on the upper cutter and the lower cutter, the upper connecting plate is rotationally connected with the inclined rod through the hinge, the lower connecting plate is rotationally connected with the roller through the rotating shaft, and because the roller protrudes out of the top end hinge of the inclined rod, the inclined rod can be continuously inclined in the process that the upper cutter and the lower cutter are gradually closed;
meanwhile, under the action of the roller, a fulcrum can be formed at the roller, a lever mechanism is formed at the upper side and the lower side of the roller, the arm of force at the upper side is gradually shortened along with the reduction of the distance between the upper cutter and the lower cutter, the displacement of the bottom end of the inclined rod is multiplied, so that the effect of amplification is achieved through the lever mechanism, the visual observation and adjustment of the thickness of the barrier are conveniently realized by referring to the scale mark on the screw rod, the problem that the observation and adjustment are inconvenient due to the small gap of the barrier is avoided, the thickness of the barrier is adjusted to the required thickness according to the thickness of the tab, the cutting and separation of the tab are inconvenient when the thickness of the barrier is large, the extrusion force between the cutters is increased when the thickness of the barrier is small, and the abrasion degree of the cutter is increased;
as the tab shaping and cutting device for producing the track lithium battery, the device also preferably comprises an outer frame, wherein the outer frame is a rectangular frame, a motor is fixedly connected to the inner side of the top end of the outer frame, a screw is fixedly connected to the tail end of a main shaft of the motor, the screw threads on the upper side and the lower side of the screw are opposite in direction, connecting blocks are fixedly connected to the front side and the rear side of the upper cutter and the lower cutter, the connecting blocks are spirally connected with the outer sides of the screw, and the opposite and backward movement of the upper cutter and the lower cutter is realized through the rotation of the motor.
Under the arrangement, the working mode of the upper cutter and the lower cutter in the invention is that the tail end of the main shaft of the motor drives the screw rod to rotate; the rotation of the screw rod can drive the upper cutter and the lower cutter to move in opposite directions and back to back;
as the tab shaping and cutting device for track lithium battery production, the device also preferably comprises a fixed top plate, the bottom end of the fixed top plate is fixedly connected with an electric push rod, the movable end of the electric push rod is fixedly connected with the top end of the outer frame, and after the upper cutter and the lower cutter finish opposite movement, the movable end of the electric push rod drives the upper cutter and the lower cutter to move downwards.
As the tab shaping and cutting device for producing the track lithium battery, preferably, one sides of the upper cutter and the lower cutter, which face the feeding end of the tab, are respectively provided with a pressing component, the pressing component comprises outer rods, the two outer rods at the upper and lower positions are respectively and fixedly connected with a fixed top plate and the ground through connecting pieces, the inner side of each outer rod is provided with an air cavity, the inner side of each air cavity is in sliding connection with a piston, one side of each piston is fixedly connected with an inner rod, and the other end of each inner rod is fixedly connected with a pressing plate;
when the upper cutter and the lower cutter move in opposite directions, the air cavity is pressurized, and the two pressing plates at the upper and lower positions can simultaneously press and limit the lugs.
As the tab shaping and cutting device for producing the track lithium battery, preferably, the outer side of the outer rod is fixedly connected with the air pump, and the output end of the air pump is communicated with the inner side of the air cavity.
The air pump can realize two functions of suction and pressurization, which are not described in excess in the prior art, when the electrode lugs enter the middle positions of the upper cutter and the lower cutter, the air pump works to increase the pressure in the air cavity, the inner rod moves towards the electrode lugs under the action of the piston, so that the electrode lugs are pressed and limited, after the cutting is finished, the air pump works to generate negative pressure to reduce the pressure in the air cavity, and the inner rod resets under the action of the piston.
A tab shaping and cutting method for track lithium battery production comprises the following steps:
s1: the tab is moved to the middle position of the upper cutter and the lower cutter;
s2: the motor works to drive the screw rod to rotate, the upper cutter and the lower cutter move in opposite directions, and incomplete cutting of the lugs is realized under the action of the grid blocking mechanism;
s3: the movable end of the electric push rod descends, and the upper cutter continues to descend, so that the complete cutting of the tab is realized;
s4: the electric push rod and the motor drive the outer frame, the upper cutter and the lower cutter to reset.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the tab shaping and cutting device for the production of the lithium battery in the track, the problem that in the prior art, the tab turns over after being cut can be avoided, so that a pressing mechanism for finishing the tab cutting procedure can be directly reduced, equipment is reduced, and the problem of reworking rate in the production process of the lithium battery is reduced.
2. In order to prevent the situation that the cutter becomes blunt due to the fact that two upper cutters and lower cutters are contacted in the process of cutting by synchronous movement of the upper cutters and the lower cutters, a grid blocking mechanism is arranged between the upper cutters and the lower cutters, the grid blocking mechanism is arranged at the edge positions of the upper cutters and the lower cutters, the thickness of the grid blocking mechanism is far smaller than that of the electrode lug, the cut electrode lug and the electrode lug on the lithium battery are in a semi-connection state under the action of the grid blocking mechanism in the cutting process, then the upper cutters and the lower cutters simultaneously finish complete cutting of the electrode lug, and in the process of continuing descending of the upper cutters, a polishing part arranged at one side of the bottom end of the upper cutters can pass through a notch, so that the cut notch is polished, and the problems of burrs, wire drawing and the like at the notch are reduced.
3. This utmost point ear plastic cutting device is used in track lithium cell production when check keeps off the mechanism and is the spacer, and the spacer can play the effect that check kept off when last cut-off knife and lower cut-off knife are close to, and after two spacer contacts, the bottom of going up the cut-off knife and the touch-sensitive switch that the top department of lower cut-off knife set up can be triggered, and at this moment, electric putter's expansion end can drive and go up cut-off knife and lower cut-off knife and continue to descend, realizes cutting off the complete disconnection of department utmost point ear.
4. According to the tab shaping and cutting device for the track lithium battery production, the thickness of the tab is thinner, and in order to set a barrier with proper thickness, the tab shaping and cutting device is further provided with a barrier mechanism, and the barrier mechanism can realize visual and convenient barrier thickness adjustment according to the thicknesses of different tabs.
5. This tab plastic cutting device is used in track lithium cell production, under the effect of gyro wheel, gyro wheel department can form the fulcrum, the upside and the downside of gyro wheel form lever mechanism, along with the reduction of distance between last cut-off knife and the lower cut-off knife, the arm of force of upside shortens gradually, the displacement volume of hang lever bottom increases doubly, thereby play the effect of "expansion" through lever mechanism, be convenient for realize the visual observation and the adjustment of check fender thickness with reference to the scale mark on the lead screw, avoid check fender clearance less cause the problem of being inconvenient for observe and adjustment, adjust the check fender thickness to required thickness according to the thickness of tab, avoid check fender thickness when great, be inconvenient for the cutting separation of tab, avoid check fender thickness less hour, the extrusion force increases between the cut-off knife, the cut-off knife wearing and tearing degree increases.
6. This tab plastic cutting device is used in track lithium cell production, when last cut-off knife and lower cut-off knife moved in opposite directions, the pressure boost in the air cavity, two clamp plates of upper and lower position can compress tightly spacingly to the tab simultaneously, and after the tab entered into the intermediate position of last cut-off knife and lower cut-off knife, the air pump work makes the air cavity internal pressure increase, and the interior pole moves to tab department under the effect of piston to realize compressing tightly spacingly to the tab.
Drawings
Fig. 1 is a schematic view of the external appearance and structure of a conventional lithium battery;
fig. 2 is a schematic structural view of a folded part after tab cutting in the prior art;
FIG. 3 is a schematic view of the overall appearance structure of the present invention;
FIG. 4 is a schematic view showing the appearance of the upper and lower cutters according to the present invention;
FIG. 5 is a schematic diagram of a side view mounting structure at an upper cutter and a lower cutter of the present invention;
FIG. 6 is a schematic view of a cross-sectional mounting structure at a compression assembly of the present invention;
FIG. 7 is a schematic view of the mounting structure of FIG. 5 at A in accordance with the present invention;
FIG. 8 is a schematic view of the mounting structure of FIG. 6 at B in accordance with the present invention;
FIG. 9 is a schematic view of the mounting structure of the gap adjustment assembly of the present invention;
FIG. 10 is a schematic side view of a gap adjustment assembly of the present invention;
FIG. 11 is a schematic diagram of the front mounting structure of the gap adjustment assembly of the present invention;
fig. 12 is a schematic view of the mounting structure of fig. 10 at C in accordance with the present invention.
In the figure:
1. a lithium battery; 2. a tab; 3. folding;
4. an upper cutter; 4a, a cutting part; 4b, polishing part; 5. an outer frame; 6. fixing the top plate; 7. an electric push rod; 8. a screw; 9. a connecting block; 10. a lower cutter; 11. a pressing plate; 12. a motor; 13. an air pump; 14. a separator sheet; 15. a connecting piece; 16. a piston; 17. an inner rod; 18. an outer rod; 19. an air cavity;
20. a connecting plate; 21. an inclined lever; 22. a roller; 23. a screw rod; 24. a circular ring; 25. a gear lever; 26. a touch sensitive switch; 27. graduation marks.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1-8, the present invention provides a technical solution:
the tab shaping and cutting device for producing the track lithium battery comprises an upper cutter 4 and a lower cutter 10, wherein the upper cutter 4 and the lower cutter 10 are respectively provided with a cutting part 4a, a grid blocking mechanism for preventing the upper cutter 4 and the lower cutter 10 from contacting is arranged between the bottom end of the upper cutter 4 and the top end of the lower cutter 10, and one side of the bottom end of the upper cutter 4 is provided with a polishing part 4b;
under the blocking effect of the grid blocking mechanism, after the upper cutter 4 and the lower cutter 10 move in opposite directions to incompletely cut the tab 2, the upper cutter 4 and the lower cutter 10 simultaneously descend to complete cutting of the tab 2.
Under the arrangement, the problem that the turnover 3 occurs after the tab 2 is cut in the prior art can be avoided, so that the pressing mechanism for finishing the tab cutting process can be directly reduced, the equipment is reduced, and the reworking rate in the lithium battery production process is reduced;
in the cutting process, the tab 2 is fed into the middle position of the upper cutter 4 and the lower cutter 10 by the feeding mechanism, the incomplete cutting of the tab 2 is realized firstly through the opposite movement of the upper cutter 4 and the lower cutter 10, and the turning moment generated when the upper cutter 4 and the lower cutter 10 are cut can be counteracted in the synchronous movement process of the upper cutter 4 and the lower cutter 10, so that the problem of turning 3 after the tab 2 is cut is effectively avoided;
in order to prevent the situation that the cutter becomes blunt due to the contact of the two upper cutters 4 and the lower cutters 10 in the process of cutting by synchronous movement of the upper cutters 4 and the lower cutters 10, a check and stop mechanism is arranged between the upper cutters 4 and the lower cutters 10, the check and stop mechanism is arranged at the edge positions of the upper cutters 4 and the lower cutters 10, the check and stop mechanism is far smaller than the thickness of the tab 2, the tab 2 which is cut off is in a semi-connection state with the tab 2 on the lithium battery 1 under the action of the check and stop mechanism in the cutting process, then the upper cutters 4 and the lower cutters 10 simultaneously finish complete cutting of the tab 2, and in the process of continuing descending of the upper cutters 4, a polishing part 4b arranged at one side of the bottom end of the upper cutters 4 passes through a notch, so that the cut notch is polished, and the problems of burrs, wiredrawing and the like at the notch are reduced.
Specifically, the grid blocking mechanism is a separation sheet 14, two separation sheets 14 are respectively arranged at the bottom end of the upper cutter 4 and the top end of the lower cutter 10, a touch-sensitive switch 26 is further arranged at the bottom end of the upper cutter 4 and the top end of the lower cutter 10, and when the upper separation sheet 14 and the lower separation sheet 14 are in contact, the touch-sensitive switch 26 can be triggered.
Under the above arrangement, when the grid blocking mechanism is the separation sheet 14, the separation sheet 14 can play a role of grid blocking when the upper cutter 4 and the lower cutter 10 are close, after the two separation sheets 14 are contacted, the touch-sensitive switch 26 arranged at the bottom end of the upper cutter 4 and the top end of the lower cutter 10 can be triggered, at the moment, the movable end of the electric push rod 7 can drive the upper cutter 4 and the lower cutter 10 to continue to move downwards, so that the electrode lugs 2 at the cutting position are completely separated;
the cutting device further comprises an outer frame 5, the outer frame 5 is a rectangular frame, a motor 12 is fixedly connected to the inner side of the top end of the outer frame 5, a screw rod 8 is fixedly connected to the tail end of a main shaft of the motor 12, the directions of threads on the upper side and the lower side of the screw rod 8 are opposite, a connecting block 9 is fixedly connected to the front side and the rear side of the upper cutter 4 and the lower cutter 10, the connecting block 9 is in spiral connection with the outer side of the screw rod 8, and opposite and reverse movement of the upper cutter 4 and the lower cutter 10 is achieved through rotation of the motor 12.
Under the above arrangement, the upper cutter 4 and the lower cutter 10 in the invention work in such a way that the tail end of the main shaft of the motor 12 drives the screw rod 8 to rotate; the rotation of the screw rod 8 drives the upper cutter 4 and the lower cutter 10 to move oppositely and back to back;
specifically, this cutting device still includes fixed roof 6, and fixed roof 6's bottom fixedly connected with electric putter 7, electric putter 7's active end and the top fixed connection of outer frame 5, go up cutter 4 and lower cutter 10 and accomplish the motion in opposite directions after, electric putter 7's active end drives and goes up cutter 4 and lower cutter 10 and descend.
Specifically, one side of the upper cutter 4 and one side of the lower cutter 10 facing the feeding end of the tab 2 are respectively provided with a pressing assembly, each pressing assembly comprises an outer rod 18, the two outer rods 18 at the upper and lower positions are respectively and fixedly connected with the fixed top plate 6 and the ground through a connecting piece 15, an air cavity 19 is formed in the inner side of each outer rod 18, a piston 16 is slidably connected to the inner side of each air cavity 19, one side of each piston 16 is fixedly connected with an inner rod 17, and the other end of each inner rod 17 is fixedly connected with a pressing plate 11;
when the upper cutter 4 and the lower cutter 10 move in opposite directions, the air cavity 19 is pressurized, and the two pressing plates 11 at the upper and lower positions can simultaneously press and limit the lugs 2.
Specifically, the outside of the outer rod 18 is fixedly connected with the air pump 13, and the output end of the air pump 13 is communicated with the inside of the air cavity 19.
The air pump 13 in the invention can realize two functions of suction and pressurization, which are not described in excess in the prior art, when the tab 2 enters the middle position of the upper cutter 4 and the lower cutter 10, the air pump 13 works to increase the pressure in the air cavity 19, and the inner rod 17 moves towards the tab 2 under the action of the piston 16, so that the compression limit of the tab 2 is realized.
Example 2
This embodiment is a further modification of embodiment 1, and referring to figures 1-12,
the same parts as those of embodiment 1 in this embodiment will not be described again, except that;
the grid baffle mechanism comprises connecting plates 20, the connecting plates 20 are respectively and fixedly connected to one sides of the upper cutter 4 and the lower cutter 10, inclined rods 21 are rotatably connected to the upper connecting plates 20 through hinges, idler wheels 22 are rotatably connected to the lower connecting plates 20 through rotating shafts, screw rods 23 are rotatably connected to the lower connecting plates 20, and the idler wheels 22 protrude out of top end hinges of the inclined rods 21 to enable the inclined rods 21 to be in an inclined state.
Specifically, the number of the screw rods 23 is two, the inclined rods 21 are arranged between the two screw rods 23, the screw rods 23 are rotationally connected with circular rings 24, a baffle rod 25 is fixedly connected between the two circular rings 24, when the upper cutter 4 and the lower cutter 10 are gradually close, the inclined rods 21 are gradually inclined and blocked by the baffle rod 25, and graduation marks 27 for obtaining the gap blocking thickness of the upper cutter 4 and the lower cutter 10 are carved on the screw rods 23.
Specifically, the lever 25 is provided with a touch switch 26, and the tilting lever 21 is gradually tilted to trigger the touch switch 26.
Under the arrangement, because the thickness of the tab 2 is thinner, in order to set the grid with proper thickness, the invention is also provided with a grid mechanism which can realize the direct and convenient grid thickness adjustment according to the thicknesses of different tabs 2;
the invention sets up the connecting plate 20 on upper cut-off knife 4 and lower cut-off knife 10, connect with the inclined bar 21 through the hinge rotation on the upper connecting plate 20, connect with the gyro wheel 22 through the pivot rotation on the lower connecting plate 20, because the gyro wheel 22 stands out of the top hinge place of the inclined bar 21, in the course that upper cut-off knife 4 and lower cut-off knife 10 draw close gradually, the inclined bar 21 can incline constantly, the invention limits the degree of inclination of the inclined bar 21 through changing the position of the baffle bar 25, thus realize the check between upper cut-off knife 4 and lower cut-off knife 10, the position adjustment mode of the baffle bar 25 is, rotate the lead screw 23, the circular ring 24 can drive the baffle bar 25 to carry on the adjustment of the position;
simultaneously, under the effect of gyro wheel 22, gyro wheel 22 department can form the fulcrum, gyro wheel 22's upside and downside form lever mechanism, along with the reduction of the distance between cut-off knife 4 and the lower cut-off knife 10, the arm of force of upside shortens gradually, the displacement volume of inclined rod 21 bottom increases doubly, thereby play the effect of "amplification" through lever mechanism, be convenient for refer to scale mark 27 on lead screw 23 and realize the audio-visual observation and the adjustment of check thickness, avoid the check clearance less cause inconvenient observation and the problem of adjustment, adjust the check thickness to required thickness according to the thickness of utmost point ear 2, avoid the check thickness to be difficult to cut apart of utmost point ear 2 when great, avoid the check thickness to be less when the check thickness is less, the extrusion force increases between the cut-off knife, the cutter wearing and tearing degree increases.
The invention also discloses a tab shaping and cutting method for producing the track lithium battery, which comprises the following steps:
s1: the tab 2 is moved to the middle position of the upper cutter 4 and the lower cutter 10;
s2: the motor 12 works to drive the screw rod 8 to rotate, the upper cutter 4 and the lower cutter 10 move in opposite directions, and incomplete cutting of the tab 2 is realized under the action of the grid mechanism;
s3: the movable end of the electric push rod 7 descends, and the upper cutter 4 continues to descend, so that the complete cutting of the tab 2 is realized;
s4: the electric push rod 7 and the motor 12 drive the outer frame 5, the upper cutter 4 and the lower cutter 10 to reset.
Although embodiments of the present 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 therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. Tab shaping and cutting device for track lithium battery production comprises an upper cutting knife (4) and a lower cutting knife (10), and is characterized in that: the upper cutter (4) and the lower cutter (10) are respectively provided with a cutting part (4 a), a grid blocking mechanism for preventing the upper cutter (4) from contacting with the lower cutter (10) is arranged between the bottom end of the upper cutter (4) and the top end of the lower cutter (10), and a polishing part (4 b) is arranged at one side of the bottom end of the upper cutter (4);
under the blocking effect of the grid blocking mechanism, after the upper cutter (4) and the lower cutter (10) move in opposite directions to incompletely cut the tab (2), the upper cutter (4) and the lower cutter (10) simultaneously descend to complete cutting of the tab (2).
2. The tab shaping and cutting device for producing an orbital lithium battery according to claim 1, wherein: the grid blocking mechanism is a separation sheet (14), two separation sheets (14) are respectively arranged at the bottom end of the upper cutter (4) and the top end of the lower cutter (10), a touch-sensitive switch (26) is further arranged at the bottom end of the upper cutter (4) and the top end of the lower cutter (10), and when the upper separation sheet (14) and the lower separation sheet (14) are in contact, the touch-sensitive switch (26) can be triggered.
3. The tab shaping and cutting device for producing an orbital lithium battery according to claim 1, wherein: the grid keeps off mechanism includes connecting plate (20), connecting plate (20) are fixed connection respectively in one side of last cut-off knife (4) and lower cut-off knife (10), and the upside be connected with inclined rod (21) through the hinge rotation on connecting plate (20), the downside be connected with gyro wheel (22) through the pivot rotation on connecting plate (20), the downside still rotate on connecting plate (20) and be connected with lead screw (23), gyro wheel (22) outstanding in the top hinge department of inclined rod (21) makes inclined rod (21) present incline state.
4. The tab shaping and cutting device for producing an orbital lithium battery according to claim 3, wherein: the number of the screw rods (23) is two, the inclined rods (21) are arranged between the two screw rods (23), the screw rods (23) are rotationally connected with circular rings (24), a baffle rod (25) is fixedly connected between the two circular rings (24), when the upper cutter (4) and the lower cutter (10) are gradually close to each other, the inclined rods (21) are gradually inclined and blocked by the baffle rod (25), and graduation marks (27) for obtaining the gap blocking thickness between the upper cutter (4) and the lower cutter (10) are engraved on the screw rods (23).
5. The tab shaping and cutting device for producing an orbital lithium battery according to claim 4, wherein: the baffle rod (25) is provided with a touch-sensitive switch (26), and the inclined rod (21) can trigger the touch-sensitive switch (26) after gradually inclining.
6. The tab shaping and cutting device for producing an orbital lithium battery according to any one of claims 1 to 5, wherein: the cutting device further comprises an outer frame (5), the outer frame (5) is a rectangular frame, a motor (12) is fixedly connected to the inner side of the top end of the outer frame (5), a screw (8) is fixedly connected to the tail end of a main shaft of the motor (12), the directions of threads on the upper side and the lower side of the screw (8) are opposite, connecting blocks (9) are fixedly connected to the front side and the rear side of the upper cutter (4) and the lower cutter (10), the connecting blocks (9) are in threaded connection with the outer side of the screw (8), and the opposite and reverse movement of the upper cutter (4) and the lower cutter (10) is realized through rotation of the motor (12).
7. The tab shaping and cutting device for producing an orbital lithium battery according to claim 6, wherein: the cutting device further comprises a fixed top plate (6), an electric push rod (7) is fixedly connected to the bottom end of the fixed top plate (6), the movable end of the electric push rod (7) is fixedly connected with the top end of the outer frame (5), and after the upper cutter (4) and the lower cutter (10) finish opposite movement, the movable end of the electric push rod (7) drives the upper cutter (4) and the lower cutter (10) to move downwards.
8. The tab shaping and cutting device for producing an orbital lithium battery according to claim 7, wherein: the utility model discloses a pole lug feeding device, including upper cut-off knife (4), lower cut-off knife (10), including outer pole (18), upper and lower two outer poles (18) of position are respectively through connecting piece (15) with fixed roof (6) and ground fixed connection, air cavity (19) have been seted up to the inboard of outer pole (18), the inboard sliding connection of air cavity (19) has piston (16), one side fixedly connected with inner rod (17) of piston (16), the other end fixedly connected with clamp plate (11) of inner rod (17);
when the upper cutter (4) and the lower cutter (10) move in opposite directions, the air cavity (19) is internally pressurized, and the two pressing plates (11) at the upper and lower positions can simultaneously press and limit the lug (2).
9. The tab shaping and cutting device for producing an orbital lithium battery according to claim 8, wherein: the outside of outer pole (18) fixed connection air pump (13), the output of air pump (13) is linked together with the inboard of air cavity (19).
10. A tab shaping and cutting method for producing an orbital lithium battery, which is characterized by using the cutting device as claimed in claim 7, and comprising the steps of:
s1: the tab (2) is moved to the middle position of the upper cutter (4) and the lower cutter (10);
s2: the motor (12) works to drive the screw (8) to rotate, the upper cutter (4) and the lower cutter (10) move in opposite directions, and incomplete cutting of the lug (2) is realized under the action of the grid mechanism;
s3: the movable end of the electric push rod (7) descends, and the upper cutter (4) continues to descend, so that the complete cutting of the lug (2) is realized;
s4: the electric push rod (7) and the motor (12) drive the outer frame (5), the upper cutter (4) and the lower cutter (10) to reset.
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| CN202410234656.3A CN117798415B (en) | 2024-03-01 | 2024-03-01 | Shaping and cutting device and method for tab for track lithium battery production |
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| CN202410234656.3A CN117798415B (en) | 2024-03-01 | 2024-03-01 | Shaping and cutting device and method for tab for track lithium battery production |
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