CN115602793A - Method for manufacturing lithium battery pole piece - Google Patents
Method for manufacturing lithium battery pole piece Download PDFInfo
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- CN115602793A CN115602793A CN202211285981.XA CN202211285981A CN115602793A CN 115602793 A CN115602793 A CN 115602793A CN 202211285981 A CN202211285981 A CN 202211285981A CN 115602793 A CN115602793 A CN 115602793A
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- pole piece
- laser
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
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- 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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Abstract
The invention discloses a method for manufacturing a lithium battery pole piece, which comprises the steps of providing a material belt to be cut, a laser cutting mechanism, a feeding mechanism and a cutting mechanism, wherein the method for manufacturing the lithium battery pole piece comprises the following steps: the feeding mechanism feeds the material belt to be cut into the laser cutting mechanism along the length direction of the material belt; when the pole piece area to be cut on the material belt reaches the working range of the laser cutting mechanism, stopping the feeding mechanism, starting cutting by the laser cutting mechanism, and driving the material belt to move by the feeding mechanism so that the next area to be cut on the material belt reaches the working range of the laser cutting mechanism; stopping the feeding mechanism, and starting cutting by the laser cutting mechanism; the cutting mechanism separates the pole pieces individually; the invention adopts laser one-step forming, ensures the position relation of the lug and the fillet, saves the step of detecting by a sensor or a CCD and the cost generated by the step, adopts laser cutting to replace a method of punching the fillet by a die, and greatly saves the die changing time when changing the product.
Description
Technical Field
The invention relates to the technical field of lithium battery manufacturing, in particular to a method for manufacturing a lithium battery pole piece.
Background
The existing lithium battery pole piece manufacturing process comprises the steps of cutting a pole lug from a strip material or a coil material by laser, cutting a fillet of the pole piece by a hardware mould, and cutting the pole piece at the fillet by a cutter at the fillet.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a method for manufacturing a lithium battery pole piece, so as to solve the problems in the background technology. In order to achieve the purpose, the invention adopts the following technical scheme:
the lithium battery pole piece manufacturing method comprises the steps of providing a material belt to be cut, a laser cutting mechanism, a feeding mechanism and a cutting mechanism, and comprises the following steps:
s1, the feeding mechanism feeds the material belt to be cut into the laser cutting mechanism along the length direction of the material belt;
s2, when the area of the pole piece to be cut on the material belt reaches the working range of the laser cutting mechanism, stopping the feeding mechanism to keep the material belt in a static state;
s3, the laser cutting mechanism respectively cuts the outlines of the two ends of the single pole piece along the width direction of the material belt;
s4, the feeding mechanism drives the material belt to move, so that the next pole piece area to be cut on the material belt reaches the working range of the laser cutting mechanism;
s5, stopping the feeding mechanism to enable the material belt to keep a static state, and starting to cut the outlines of two ends of the next pole piece by the laser cutting mechanism;
and S6, the cutting mechanism separates the pole pieces after the cutting of the laser cutting mechanism is finished.
Preferably, the laser cutting mechanism comprises a first laser lens and a second laser lens, the first laser lens is used for cutting the pole lug of the pole piece and the contour close to one side of the pole lug, and the second laser lens is used for cutting the contour of the pole piece far away from one side of the pole lug.
Preferably, the first laser lens and the second laser lens simultaneously cut outlines of two ends of the same pole piece.
Preferably, the first laser lens and the second laser lens respectively cut outlines of two ends of different pole pieces.
Preferably, the device also comprises a material supporting mechanism which is used for bearing and discharging the waste materials cut by the laser cutting mechanism.
Preferably, the material supporting mechanism comprises a first material supporting assembly and a second material supporting assembly, the first material supporting assembly is used for bearing and discharging the waste materials cut by the first laser lens, and the second material supporting assembly is used for bearing and discharging the waste materials cut by the second laser lens.
Preferably, the first material supporting assembly and the second material supporting assembly are identical in structure, the first material supporting assembly comprises a material cutting and dust removing plate, the material cutting and dust removing plate is used for being in a horizontal state when the first laser lens works, supporting cut waste materials, and rotating to a vertical state after the first laser lens finishes cutting so that the cut waste materials are discharged.
Preferably, a plurality of through holes are formed in the material cutting and dust removing plate and used for discharging dust generated during cutting in time.
Preferably, a dust pumping mechanism is provided and is used for pumping away dust generated by the laser cutting mechanism.
Preferably, the dust pumping mechanism comprises a first dust pumping assembly and a second dust pumping assembly, the first dust pumping assembly is used for pumping away dust generated during cutting of the first laser lens, and the second dust pumping assembly is used for pumping away dust generated during cutting of the second laser lens.
Compared with the prior art, the invention has the advantages that the cutting of the lug and the fillet is combined on one station of the laser cutting, the traditional method of cutting the lug by a hardware die is abandoned, the laser one-step forming is adopted, the position relation of the lug and the fillet is ensured, the step of detecting by a sensor or a CCD (charge coupled device) and the cost generated by the step are saved, the method of punching the fillet by the die is replaced by the laser cutting, the die change time when the product is changed is greatly saved, in addition, the cutting precision is improved because the material belt is in a static state during cutting, and the width difference of a heat affected zone is small because the cutting speed on a laser cutting path is constant, thereby ensuring the cutting quality.
Drawings
FIG. 1 is a schematic flow chart of a lithium battery pole piece manufacturing method according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the tape and pole piece structure of the embodiment of FIG. 1;
FIG. 3 is a schematic structural diagram of a lithium battery pole piece manufacturing device according to the embodiment of FIG. 1;
FIG. 4 is a schematic view of a first material holding assembly according to the embodiment of FIG. 1;
FIG. 5 is a schematic view of the vertical structure of the blanking and dedusting plate of FIG. 1 according to the present invention;
FIG. 6 is a schematic view of the first dust extraction assembly of the embodiment of FIG. 1;
FIG. 7 is a schematic view of a lens adjustment assembly according to the embodiment of FIG. 1;
FIG. 8 is a schematic view of the feed mechanism of the embodiment of FIG. 1 of the present invention;
the figures above show: 1. a laser cutting mechanism; 2. a material supporting mechanism; 3. a feeding mechanism; 4. a dust pumping mechanism; 5. a material belt; 6. a cutting mechanism; 11. a laser lens holder; 12. a lens adjustment assembly; 13. a first laser lens; 14. a second laser lens; 21. a first material supporting component; 22. a second material supporting component; 211. a material supporting frame; 212. a drive motor; 213. a rotating plate; 214. a material cutting and dust removing plate; 41. a dust extraction hood; 42. a first dust extraction duct; 43. a second dust extraction pipe; 216. a through groove; 411. a through hole; 121. a first sliding table; 122. a second sliding table; 123. a third sliding table; 124. a fourth slide table; 31. a screw rod sliding table; 32. a movable seat; 33. a pair of rollers; 34. a first servo motor; 35. a second servo motor; 36. a turntable; 37. a drive shaft; 38. a connecting rod; 39. a material cutting seat; 391. a cutter seat.
Detailed Description
In order to facilitate an understanding of the invention, the invention is described in more detail below with reference to the accompanying drawings and specific examples. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," "front," "rear," and the like as used herein are for descriptive purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
As shown in fig. 1-2, an embodiment of the present invention is a method for manufacturing a lithium battery pole piece, which includes providing a material belt 5 to be cut, a laser cutting mechanism 1, a feeding mechanism 3, and a cutting mechanism 6, where the method for manufacturing a lithium battery pole piece includes the following steps:
s1, the feeding mechanism 3 feeds the material belt 5 to be cut into the laser cutting mechanism 1 along the length direction of the material belt;
s2, when the pole piece area to be cut on the material belt reaches the working range of the laser cutting mechanism 1, stopping the feeding mechanism 3 to keep the material belt in a static state;
s3, the laser cutting mechanism 1 respectively cuts the outlines of two ends of a single pole piece along the width direction of the material belt 5;
s4, the feeding mechanism 3 drives the material belt to move, so that the next pole piece area to be cut on the material belt reaches the working range of the laser cutting mechanism 1;
s5, stopping the feeding mechanism 3 to keep the material belt in a static state, and starting to cut the outlines of two ends of the next pole piece by the laser cutting mechanism 1;
and S6, the cutting mechanism 6 separates the pole pieces after the cutting of the laser cutting mechanism 1 is finished.
In this embodiment, the working direction of the laser cutting mechanism is downward, the feeding mechanism horizontally feeds the material belt into the working range of the laser cutting mechanism, when the area of the pole piece to be cut on the material belt reaches the working range of the laser cutting mechanism, the feeding mechanism stops to keep the material belt in a static state, the laser cutting mechanism respectively cuts the outlines of two ends of a single pole piece in the width direction of the material belt, after the cutting is completed, the feeding mechanism drives the material belt to move horizontally to make the area of the next pole piece to be cut reach the working range of the laser cutting mechanism, the feeding mechanism stops, the material belt keeps in a static state, the laser cutting mechanism starts to cut the outlines of two ends of the next pole piece, each pole piece cut at the moment is continuous, and the cutting mechanism cuts off the single pole piece.
The invention combines the cutting of the pole ear and the fillet into a laser cutting process, and leads the laser cutting and the single separation of the pole piece to be finished under the static state of the material belt, after the cutting is finished, the material belt continues to advance to prepare the next cutting, the outlines of the two ends of the pole piece are formed by one step by laser, thereby not only ensuring the position relation of the pole ear and the fillet, but also greatly saving the die change time when the product is changed, in addition, the cutting precision is improved because of adopting the static cutting method, the width difference of the heat affected zone is not large because the cutting speed on the laser cutting path is constant, and the cutting quality is ensured.
Preferably, the laser cutting mechanism 1 includes a first laser lens 13 and a second laser lens 14, the first laser lens 13 is used for cutting the pole lug of the pole piece and the contour close to one side of the pole lug, and the second laser lens 14 is used for cutting the contour of the pole piece far away from one side of the pole lug.
Specifically, the length direction of the material belt is the front-back direction, a first long edge of the material belt is located below the first laser lens, a second long edge of the material belt is located below the second laser lens, the first laser lens cuts out a lug outline at the left end of the pole piece and fillets on the front side and the rear side of the lug, and the second laser lens cuts out two fillets at the right end of the pole piece. The cutting path of the first laser lens is sequentially a first fillet, a first lug and a second fillet, the cutting path of the second laser lens is sequentially a third fillet and a fourth fillet, the two ends of a single lug are respectively cut by the two laser lenses, the position relation of the two lugs and the fillets is guaranteed, product errors are reduced, product precision is improved, and the two lugs are not cut off, so that continuous production is realized, and the die change time during product replacement is greatly saved.
Preferably, the first laser lens 13 and the second laser lens 14 simultaneously cut the outlines of two ends of the same pole piece.
Specifically, the left and right directions of the first laser lens and the second laser lens are arranged in parallel, the first laser lens and the second laser lens are located at the left end and the right end above the same pole piece cutting area, the same pole piece is cut simultaneously, the relative position relation of the two ends of the same pole piece is guaranteed, and the precision of a single product is improved.
Preferably, the first laser lens 13 and the second laser lens 14 respectively cut the outlines of two ends of different pole pieces.
Specifically, first laser lens and second laser lens set up around the material length direction, do not cut same pole piece simultaneously, and after first laser lens cut the profile of pole piece utmost point ear one end, reentrant second laser lens working range is kept away from the profile of utmost point ear one end by this pole piece of second laser lens cutting, and nimble overall arrangement can make and produce the line width and reduce, adapts to different scenes.
Preferably, the device also comprises a material supporting mechanism 2 which is used for carrying and discharging the waste materials cut by the laser cutting mechanism 1.
Specifically, ask material mechanism 2 to set up in laser cutting mechanism 1 below, lie in material area 5 below simultaneously, prevent that the waste material that the cutting was accomplished from droing in advance or piling up.
Preferably, the material supporting mechanism 2 includes a first material supporting component 21 and a second material supporting component 22, the first material supporting component 21 is used for carrying and discharging the waste material cut by the first laser lens 13, and the second material supporting component 22 is used for carrying and discharging the waste material cut by the second laser lens 14.
Specifically, the first material supporting component 21 is located below the first laser lens 13 and used for supporting waste materials generated during cutting of the first laser lens 13, the second material supporting component 22 is located below the second laser lens 14 and used for supporting waste materials generated during cutting of the second laser lens 14, and it can be understood that when the first laser lens 13 and the second laser lens 14 are located at front and back positions, the first material supporting component 21 and the second material supporting component 22 are also arranged front and back, and when the first laser lens 13 and the second laser lens 14 are arranged left and right in parallel, the first material supporting component 21 and the second material supporting component 22 are also arranged in parallel.
Preferably, the first material supporting assembly 21 and the second material supporting assembly 22 have the same structure, the first material supporting assembly 21 includes a material cutting and dust removing plate 214, and the material cutting and dust removing plate 214 is used to be in a horizontal state when the first laser lens 13 works, support the cut waste material, and rotate to a vertical state after the first laser lens 13 finishes cutting, so that the cut waste material is discharged.
Specifically, the material cutting and dust removing plate 214 rotates to a horizontal state when the first laser lens 13 cuts the material strip, and supports the edge of the material strip to receive the waste materials cut by the first laser lens 13, and after the first laser lens 13 finishes cutting, the material cutting and dust removing plate 214 rotates to a vertical state to enable the waste materials on the material cutting and dust removing plate 214 to fall off and be discharged.
Preferably, a plurality of through holes 216 are formed in the blanking and dust removing plate 214, and are used for discharging dust generated during cutting in time, so that dust accumulation is prevented, and cutting accuracy is not affected.
Preferably, a dust pumping mechanism 4 is further provided, and the dust pumping mechanism 4 is used for pumping away dust generated by the laser cutting mechanism 1, so as to improve the operating environment of the laser cutting mechanism 1 and the material supporting mechanism 2 and prevent the pollution to the external environment.
Preferably, the dust pumping mechanism 4 includes a first dust pumping assembly 401 and a second dust pumping assembly 402, the first dust pumping assembly 401 is configured to pump away dust generated when the first laser lens 13 is cut, and the second dust pumping assembly 402 is configured to pump away dust generated when the second laser lens 14 is cut.
It can be understood that the first dust-pumping assembly 401 is used for cleaning dust generated when the first laser lens 13 is cut, and the second dust-pumping assembly 402 is used for cleaning dust generated when the second laser lens 14 is cut.
In a second aspect, the invention further provides a lithium battery pole piece manufacturing device, which is used for operating the lithium battery pole piece manufacturing method, and as shown in fig. 3, the lithium battery pole piece manufacturing device comprises a laser cutting mechanism 1, a material supporting mechanism 2, a feeding mechanism 3 and a cutting mechanism 6, wherein the material supporting mechanism 2 is arranged in the working range of the laser cutting mechanism 1, the feeding mechanism 3 is arranged on one side of the material supporting mechanism 2 and is used for intermittently conveying a material belt 5 to the laser cutting mechanism 1, the cutting mechanism 6 is arranged on the feeding mechanism 3 and is used for individually separating the cut pole pieces, the laser cutting mechanism 1 comprises a laser lens frame 11, a lens adjusting assembly 12, a first laser lens 13 and a second laser lens 14, the lens adjusting assembly 12 is arranged on the laser lens frame 11, the first laser lens 13 and the second laser lens 14 are respectively arranged on the lens adjusting assembly 12, the lens adjusting assembly 12 is used for respectively adjusting the vertical position and the horizontal position of the first laser lens 13 and the second laser lens 14, the first laser lens 13 is used for cutting out the outline of one end of a pole piece lug along one side of the length direction of the material belt 5, and the second laser lens 14 is used for cutting out the outline of one end of the pole piece away from the pole lug.
In this embodiment, the working direction of the laser cutting mechanism 1 is downward, the material supporting mechanism 2 is arranged below the laser cutting mechanism 1 and is used for bearing and discharging waste materials cut by the laser cutting mechanism 1, and the feeding mechanism 3 is arranged on the front side of the material supporting mechanism 2 and is used for intermittently feeding materials to the laser cutting mechanism 1 and cutting off the cut material strip 5; laser lens frame 11 level sets up, camera lens adjusting part 12 is installed in the bottom surface of laser lens frame 11, first laser lens 13 is installed in camera lens adjusting part 12 left side, second laser lens 14 is installed in camera lens adjusting part 12 right side, camera lens adjusting part 12 is used for driving the vertical and horizontal direction motion of first laser lens 13 and second laser lens 14 respectively, first laser lens 13 is used for cutting out left utmost point ear and the fillet of pole piece along strip 5 left side, second laser lens 14 is used for cutting out the fillet on pole piece right side along strip 5 right side.
When the cutting machine works, the feeding mechanism 3 drives the material belt 5 to move forwards, when the position to be cut on the material belt 5 reaches the working range of the laser cutting mechanism 1, the feeding mechanism 3 stops feeding, the material belt 5 stops moving, the first laser lens 13 and the second laser lens 14 start working, the material supporting mechanism 2 supports the cut waste materials and discharges the waste materials after cutting is completed, after the cutting is completed, the feeding mechanism 3 continues feeding, the material belt 5 continues to move forwards, and continuous pole pieces after the cutting is completed are cut off singly, so that a working cycle is completed; according to the cutting and combining device, cutting of the lug and the fillet is combined to one station, the traditional method for cutting the lug by using a hardware die is abandoned, the position relation between the lug and the fillet is guaranteed by adopting laser one-step forming, the method for punching the fillet by using the laser cutting instead of the die is adopted, and the die changing time during product replacement is greatly saved.
Preferably, as shown in fig. 3, the material supporting mechanism 2 includes a first material supporting assembly 21 and a second material supporting assembly 22, the first material supporting assembly 21 is disposed in a working range of the first laser lens 13, and the second material supporting assembly 22 is disposed in a working range of the second laser lens 14.
Specifically, the first material supporting component 21 is arranged below the first laser lens 13, the second material supporting component 22 is arranged below the second laser lens 14, the first material supporting component 21 is used for bearing and discharging waste materials cut by the first laser lens 13, and the second material supporting component 22 is used for bearing and discharging waste materials cut by the second laser lens 14.
Preferably, as shown in fig. 4, the first material supporting assembly 21 includes a material supporting support frame 211, a driving motor 212, a rotating plate 213 and a material cutting and dust removing plate 214, the driving motor 212 is disposed on the material supporting support frame 211, the rotating plate 213 is disposed at a working end of the driving motor 212, and the material cutting and dust removing plate 214 is disposed at an end of the rotating plate 213.
Specifically, ask material support frame 211 to set up perpendicularly, driving motor 212 level sets up in asking material support frame 211 lateral wall, its work end runs through and asks material support frame 211, rotor plate 213 sets up in driving motor 212's work end, blank dust removal board 214 sets up in rotor plate 213 outside one end, driving motor 212 rotates, drive rotor plate 213 swing, thereby it rotates to drive blank dust removal board 214, at laser cutting mechanism 1 during operation, blank dust removal board 214 is located the horizontality, be used for receiving the waste material that gets off of cutting, after laser cutting mechanism 1 cuts and finishes, driving motor 212 drives blank dust removal board 214 and rotates to the vertical state, discharge the waste material.
Preferably, as shown in fig. 3, the dust collecting device further includes a dust collecting mechanism 4, the dust collecting mechanism 4 is disposed on the material supporting mechanism 2, the dust collecting mechanism 4 includes a first dust collecting component and a second dust collecting component, the first dust collecting component is disposed on the first material supporting component 21, and the second dust collecting component is disposed on the second material supporting component 22.
Specifically, the first dust-extracting component is disposed on the first material-supporting component 21 and is used for extracting the smoke and dust generated by cutting the first laser lens 13, and the second dust-extracting component is disposed on the second material-supporting component 22 and is used for extracting the waste and dust generated by cutting the second laser lens 14.
Preferably, as shown in fig. 6, the first dust extraction assembly includes a dust extraction cover 41, a first dust extraction pipeline 42, and a second dust extraction pipeline 43, the dust extraction cover 41 is disposed on the supporting support frame 211 on one side of the material cutting and dust removing plate 214, the first dust extraction pipeline 42 is disposed on the upper side of the dust extraction cover 41, and the second dust extraction pipeline 43 is disposed on the lower side of the dust extraction cover 41.
Specifically, the dust exhaust hood 41 is arranged on the side wall of the material supporting support 211 close to one side of the material cutting and dust removing plate 214, the material cutting and dust removing plate 214 is located in the dust exhaust hood 41, the first dust exhaust pipeline 42 is communicated with the upper side of the outer wall of the dust exhaust hood 41, the second dust exhaust pipeline 43 is communicated with the lower part of the outer wall of the dust exhaust hood 41, the first dust exhaust pipeline 42 is used for exhausting smoke and dust generated when the first laser lens 13 cuts the material belt 5, and the second dust exhaust pipeline 43 is used for exhausting waste materials discharged by the first material supporting assembly 21.
Preferably, as shown in fig. 4, a plurality of through grooves 216 are formed on the blank dust-removing plate 214 in a penetrating manner. The plurality of through grooves 216 are formed to discharge dust generated during cutting of the first laser lens 13 in time.
Preferably, as shown in fig. 4, the dust hood 41 is provided with a through hole 411 corresponding to the first laser lens 13.
Specifically, the top of the dust hood 41 is provided with a through hole 411 corresponding to the first laser lens 13, so that the first laser lens 13 can conveniently penetrate through the dust hood 41 to cut the tape 5.
Preferably, as shown in fig. 7, the lens adjusting assembly 12 includes a first sliding table 121, a second sliding table 122, a third sliding table 123 and a fourth sliding table 124, where the first sliding table 121 and the second sliding table 122 are respectively and horizontally disposed on the bottom surface of the laser lens holder 11, the third sliding table 123 is disposed at the working end of the first sliding table 121, the fourth sliding table 124 is disposed at the working end of the second sliding table 122, the first laser lens 13 is disposed at the working end of the third sliding table 123, and the second laser lens 14 is disposed at the working end of the fourth sliding table 124.
Specifically, the first sliding table 121 is horizontally arranged at the left end of the bottom surface of the laser lens holder 11, the second sliding table 122 is horizontally arranged at the right end of the bottom surface of the laser lens holder 11, the third sliding table 123 is vertically arranged at the working end of the first sliding table 121, the fourth sliding table 124 is vertically arranged at the working end of the second sliding table 122, the first laser lens 13 is arranged at the working end of the third sliding table 123, the second laser lens 14 is arranged at the working end of the fourth sliding table 124,
during operation, first slip table 121 drives third slip table 123 horizontal motion, third slip table 123 drives first laser lens 13 vertical motion, thereby adjust first laser lens 13's level and vertical position, second slip table 122 drives fourth slip table 124 horizontal motion, fourth slip table 124 drives second laser lens 14 vertical motion, thereby adjust second laser lens 14's level and vertical position, it can be understood, the slip table can be manual slip table also can be electronic slip table, the slip table that this embodiment chooseed for use is manual slip table, in other different embodiments, can use devices such as cylinder slide rail to realize vertical or horizontal motion.
Preferably, the second dust pumping assembly and the first dust pumping assembly have the same structure.
Preferably, the second material supporting component 22 and the first material supporting component 21 have the same structure.
Preferably, as shown in fig. 8, the feeding mechanism 3 includes a screw sliding table 31, a movable seat 32, a pair roller 33 and a first servo motor 34, the movable seat 32 is disposed at the working end of the screw sliding table 31, the pair roller 33 is rotatably disposed in the movable seat 32, and the first servo motor 34 is disposed on the side wall of the movable seat 32 and is used for driving the pair roller 33 to work.
Specifically, the screw rod sliding table 31 is horizontally arranged, the movable seat 32 is arranged at the working end of the screw rod sliding table 31, the pair roller 33 is horizontally and rotatably arranged in the movable seat 32, the first servo motor 34 is arranged on the side wall of the movable seat 32 and is used for driving the pair roller 33 to rotate, it can be understood that the pair roller 33 comprises a driving roller and a driven roller which are meshed with each other, the first servo motor 34 drives the driving roller to rotate, and the driving roller drives the driven roller to rotate; when the device works, the material belt 5 penetrates through the middle of the pair of rollers 33, the first servo motor 34 drives the pair of rollers 33 to rotate, and the pair of rollers 33 drives the material belt 5 to move.
Preferably, as shown in fig. 8, the cutting mechanism includes a second servo motor 35, a rotary table 36, a driving shaft 37, a connecting rod 38 and a material cutting base 39, the second servo motor 35 is disposed on the top of the movable base 32, the rotary table 36 is disposed on the working end of the second servo motor 35, the driving shaft 37 is disposed on the periphery of the disc surface of the rotary table 36, the first end of the connecting rod 38 is rotatably connected to the driving shaft 37, the material cutting base 39 is slidably disposed on the side wall of the movable base 32 and rotatably connected to the second end of the connecting rod 38, and a cutting knife 392 is disposed on the material cutting base 39.
Specifically, the second servo motor 35 is horizontally arranged at the top of the movable seat 32, the rotary table 36 is arranged at the working end of the second servo motor 35, the driving shaft 37 is arranged on the front wall of the rotary table 36 close to the circumferential side, the driving shaft 37 is not concentric with the rotating shaft of the second servo motor 35 and is perpendicular to the side wall of the rotary table 36, the material cutting seat 39 is vertically and slidably arranged on the front wall of the movable seat 32, the top end of the connecting rod 38 is rotatably connected with the driving shaft 37, the bottom end of the connecting rod is rotatably connected with the material cutting seat 39, the front wall of the material cutting seat 39 is provided with a cutter 392, the material cutting seat 39 below the cutter 392 is provided with a cutter seat 391, two ends of the top surface of the cutter seat 391 are vertically provided with guide columns, and the two guide columns are both slidably connected with the material cutting seat 39.
In operation, the second servo motor 35 drives the rotary table 36 to rotate, the rotary table 36 drives the driving shaft 37 to rotate along the circumference of the rotary table 36, so as to drive the material cutting base 39 to move vertically along the side wall of the movable base 32 through the connecting rod 38, thereby driving the cutter to move vertically, and the cutter cooperates with the cutter base 391 to cut off the pole pieces individually.
Furthermore, a second feeding mechanism is arranged on the rear side of the laser cutting mechanism 1, the second feeding mechanism comprises a second feeding frame, a second pair of rollers and a third servo motor, the second pair of rollers is arranged in the second feeding frame, the third servo motor is arranged on the side wall of the second feeding frame and used for driving the second pair of rollers to rotate, and the second feeding mechanism is used for being matched with the feeding mechanism 3 to tension the material belt 5.
The technical features mentioned above are combined with each other to form various embodiments which are not listed above, and all of them are regarded as the scope of the present invention described in the specification; also, modifications and variations may be suggested to those skilled in the art in light of the above teachings, and it is intended to cover all such modifications and variations as fall within the true spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The method for manufacturing the lithium battery pole piece is characterized by comprising the steps of providing a material belt to be cut, a laser cutting mechanism, a feeding mechanism and a cutting mechanism, wherein the method for manufacturing the lithium battery pole piece comprises the following steps:
s1, the feeding mechanism feeds the material belt to be cut into the laser cutting mechanism along the length direction of the material belt;
s2, when the area of the pole piece to be cut on the material belt reaches the working range of the laser cutting mechanism, stopping the feeding mechanism to keep the material belt in a static state;
s3, the laser cutting mechanism respectively cuts the outlines of the two ends of the single pole piece along the width direction of the material belt;
s4, the feeding mechanism drives the material belt to move, so that the next pole piece area to be cut on the material belt reaches the working range of the laser cutting mechanism;
s5, stopping the feeding mechanism to enable the material belt to keep a static state, and starting to cut the outlines of two ends of the next pole piece by the laser cutting mechanism;
and S6, the cutting mechanism separates the pole pieces after the cutting of the laser cutting mechanism is finished.
2. The method for manufacturing the lithium battery pole piece as claimed in claim 1, wherein the laser cutting mechanism comprises a first laser lens and a second laser lens, the first laser lens is used for cutting the electrode tab of the pole piece and the contour of the side close to the electrode tab, and the second laser lens is used for cutting the contour of the side far away from the electrode tab.
3. The method for manufacturing the lithium battery pole piece according to claim 2, wherein the first laser lens and the second laser lens cut the outlines of two ends of the same pole piece at the same time.
4. The method for manufacturing the lithium battery pole piece according to claim 2, wherein the first laser lens and the second laser lens respectively cut outlines of two ends of different pole pieces.
5. The method for manufacturing the lithium battery pole piece as claimed in claim 2, further comprising a material supporting mechanism for supporting and discharging the waste material cut by the laser cutting mechanism.
6. The method for manufacturing the lithium battery pole piece, according to claim 5, wherein the material supporting mechanism comprises a first material supporting assembly and a second material supporting assembly, the first material supporting assembly is used for bearing and discharging waste materials cut by the first laser lens, and the second material supporting assembly is used for bearing and discharging waste materials cut by the second laser lens.
7. The method for manufacturing the lithium battery pole piece, as recited in claim 6, wherein the first material supporting assembly and the second material supporting assembly have the same structure, and the first material supporting assembly comprises a material cutting and dust removing plate, the material cutting and dust removing plate is used for supporting the cut waste materials when the first laser lens works, and rotating to a vertical state after the first laser lens finishes cutting, so as to discharge the cut waste materials.
8. The method for manufacturing the lithium battery pole piece according to claim 1, wherein the blanking dust removal plate is provided with a plurality of through holes for discharging dust generated during cutting in time.
9. The method for manufacturing the lithium battery pole piece, according to claim 8, further comprises providing a dust extraction mechanism, wherein the dust extraction mechanism is used for extracting dust generated by the laser cutting mechanism.
10. The method for manufacturing a lithium battery pole piece as claimed in claim 8, wherein the dust-extracting mechanism comprises a first dust-extracting assembly and a second dust-extracting assembly, the first dust-extracting assembly is used for extracting dust generated during cutting of the first laser lens, and the second dust-extracting assembly is used for extracting dust generated during cutting of the second laser lens.
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| CN202211285981.XA CN115602793B (en) | 2022-10-20 | 2022-10-20 | Lithium battery pole piece preparation method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116727898A (en) * | 2023-08-15 | 2023-09-12 | 成都莒纳新材料科技有限公司 | Electrode slice cutting device |
| CN116914225A (en) * | 2023-08-31 | 2023-10-20 | 三一技术装备有限公司 | Lamination device and battery production line |
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| CN104384724A (en) * | 2014-11-17 | 2015-03-04 | 广东正业科技股份有限公司 | Laser cutting equipment for cutting electrode lug and cutting method thereof |
| CN109980267A (en) * | 2019-04-23 | 2019-07-05 | 东莞市一铭自动化设备科技有限公司 | A kind of battery film-making cutting integration machine |
| CN111477833A (en) * | 2020-04-10 | 2020-07-31 | 孚能科技(赣州)股份有限公司 | Lithium ion battery pole piece and laser cutting and manufacturing method thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104384724A (en) * | 2014-11-17 | 2015-03-04 | 广东正业科技股份有限公司 | Laser cutting equipment for cutting electrode lug and cutting method thereof |
| CN109980267A (en) * | 2019-04-23 | 2019-07-05 | 东莞市一铭自动化设备科技有限公司 | A kind of battery film-making cutting integration machine |
| CN111477833A (en) * | 2020-04-10 | 2020-07-31 | 孚能科技(赣州)股份有限公司 | Lithium ion battery pole piece and laser cutting and manufacturing method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116727898A (en) * | 2023-08-15 | 2023-09-12 | 成都莒纳新材料科技有限公司 | Electrode slice cutting device |
| CN116727898B (en) * | 2023-08-15 | 2023-12-05 | 成都莒纳新材料科技有限公司 | Electrode slice cutting device |
| CN116914225A (en) * | 2023-08-31 | 2023-10-20 | 三一技术装备有限公司 | Lamination device and battery production line |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115602793B (en) | 2023-07-14 |
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