CN219665429U - Battery material area laser cuts film-making device - Google Patents
Battery material area laser cuts film-making device Download PDFInfo
- Publication number
- CN219665429U CN219665429U CN202320555387.1U CN202320555387U CN219665429U CN 219665429 U CN219665429 U CN 219665429U CN 202320555387 U CN202320555387 U CN 202320555387U CN 219665429 U CN219665429 U CN 219665429U
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- CN
- China
- Prior art keywords
- pole piece
- laser
- adsorption
- laser cutting
- material belt
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- 239000000463 material Substances 0.000 title claims abstract description 42
- 238000001179 sorption measurement Methods 0.000 claims abstract description 51
- 238000003698 laser cutting Methods 0.000 claims abstract description 46
- 239000000428 dust Substances 0.000 claims abstract description 21
- 238000005520 cutting process Methods 0.000 claims description 24
- 238000004804 winding Methods 0.000 claims description 16
- 238000010521 absorption reaction Methods 0.000 claims description 8
- 238000009966 trimming Methods 0.000 claims description 6
- 239000008188 pellet Substances 0.000 claims description 5
- 230000000712 assembly Effects 0.000 abstract description 14
- 238000000429 assembly Methods 0.000 abstract description 14
- 238000000034 method Methods 0.000 abstract description 13
- 230000008569 process Effects 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 description 7
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- 238000003475 lamination Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000005493 welding type Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Laser Beam Processing (AREA)
Abstract
The utility model discloses a battery material belt laser cutting and tabletting device which comprises a pole piece traction roller, a laser cutting assembly and a dust removal system, wherein the pole piece traction roller is driven by a servo motor to rotate in a stepping way, N equally-divided adsorption assemblies are arranged on the periphery of the pole piece traction roller, the surfaces of the adsorption assemblies are arc surfaces and are used for vacuum adsorption of a material belt wound on the adsorption assemblies and synchronously rotate, a laser cutting gap is formed between every two adjacent adsorption assemblies, the laser cutting assemblies are arranged on the side surface of the pole piece traction roller, laser cutting lines generated by the laser cutting assemblies are aligned with the laser cutting gap when the pole piece traction roller stops in a stepping way, the material belt is cut, the pole piece is generated, and the adsorption assemblies for adsorbing the pole piece are released from an adsorption state when rotating to a blanking station. The utility model integrates the traction and the laser cutting of the material belt, shortens the process path and avoids the pole piece wrinkling.
Description
Technical Field
The utility model relates to manufacturing process equipment of lithium ion battery cells, in particular to a battery material belt laser cutting and tabletting device.
Background
The manufacturing process of the lithium ion battery core comprises the following steps: lamination process and winding process. The lamination process is a lithium ion battery core manufacturing process in which the positive electrode and the negative electrode are cut into small pieces and are overlapped with the isolating film to form small battery core monomers, and then the small battery core monomers are overlapped and connected in parallel to form a large battery core.
The manufacturing of the positive electrode and the negative electrode has great influence on the whole process, and a plurality of modes for cutting the positive electrode and the negative electrode into single electrode plates by the state of coiled material strips are provided, including hardware die cutting, ultrasonic cutters and the like. If the cutter device for cutting is poor in precision, larger burrs are formed at the knife edge, and the burrs possibly pierce the diaphragm, so that short circuit occurs in the battery, and safety accidents are caused.
The laser cutting sheet is a novel sheet cutting form and sheet making device, the sheet cutting quality can be greatly improved, the production efficiency of the whole machine is improved, and the sheet making method, the sheet making system and the positive electrode sheet are disclosed as a full-laser sheet making and stacking integrated machine disclosed in Chinese patent document CN114888451A and a positive electrode sheet disclosed in Chinese patent document CN 114633035A.
At present, when a single pole piece is cut from a material belt by laser, the material belt is in a flattening state, and before flattening, the material belt also needs to be subjected to a traction unreeling process, so that the process route is longer.
Disclosure of Invention
The utility model aims to provide a battery material belt laser cutting and tabletting device so as to improve the pole piece cutting quality and the production efficiency of the whole machine.
The utility model provides a battery material belt laser cutting and tabletting device which comprises a pole piece traction roller, a laser cutting assembly and a dust removal system, wherein the pole piece traction roller is driven by a servo motor to rotate in a stepping manner, N equally-divided adsorption assemblies are arranged on the periphery of the pole piece traction roller, the surfaces of the adsorption assemblies are arc surfaces and are used for vacuum adsorption of a material belt wound on the adsorption assemblies and synchronously rotate, a laser cutting gap is formed between every two adjacent adsorption assemblies, the laser cutting assemblies are arranged on the side surface of the pole piece traction roller, laser cutting lines generated by the laser cutting assemblies are aligned with the laser cutting gap when the pole piece traction roller stops in a stepping manner, the material belt is cut, the pole piece is generated, and the adsorption assemblies for adsorbing the pole piece are released from an adsorption state when rotating to a blanking station.
Further, the pole piece traction winding drum pulls the material belt from the upper part, a single pole piece is horizontally led out from the bottom of the pole piece traction winding drum, and laser generated by the laser cutting assembly obliquely and radially enters the pole piece traction winding drum.
Further, the material belt wound on the pole piece traction winding drum is adsorbed by more than two adsorption components before cutting, the pole piece after cutting is still adsorbed by the adsorption components, and the adsorption state is released when the adsorption components rotate to the blanking station in a stepping manner.
Further, the adsorption component comprises a vacuum adsorption plate and an adsorption cavity, wherein the surface of the vacuum adsorption plate is an arc surface, and the adsorption component is provided with a working state of adsorbing a material belt/a pole piece and a free state of removing adsorption.
Further, the laser cutting assembly comprises a laser and a manual adjustment sliding table, wherein the laser is fixedly connected to the manual adjustment sliding table, and the manual adjustment sliding table is used for adjusting the distance between the laser and a pole piece to be cut.
Further, the laser cutting assembly further comprises an axial moving module and supporting legs which are supported by the axial moving module at two ends, wherein the top mounting surface of each supporting leg is an inclined surface so as to meet the requirement that laser generated by a laser obliquely upwards radially enters the pole piece traction reel.
Further, the manual adjustment sliding table comprises a hand wheel, a linear guide pair, a ball screw pair, a locking block and a digital display scale, wherein the laser is arranged on the linear guide pair, the hand wheel is connected with the ball screw pair in a driving manner and used for adjusting the position of the laser, the locking block is used for locking the laser after being adjusted in place, and the digital display scale is used for displaying the position parameters of the laser.
Further, the laser is a galvanometer scanning laser.
Further, the dust removing system comprises a dust collecting nozzle, an X-direction connecting shaft, an intermediate adjusting block, a Y-direction connecting shaft and a base frame, wherein the dust collecting nozzle is connected to the X-direction connecting shaft, the X-direction connecting shaft is connected with the Y-direction connecting shaft through the intermediate adjusting block, and the Y-direction connecting shaft is connected to the base frame.
Further, the pole piece traction reel is engaged with the vacuum conveyor belt to transfer the pole piece separated from the adsorption assembly to the vacuum conveyor belt.
The utility model can solve the problem that the burrs are large after the coiled material pole piece is cut, and the safety of the lithium battery is affected, the pole piece is pulled to the position of a laser cutting line in a vacuum adsorption mode through the pole piece pulling rotary drum, and the coiled material is cut into single pole pieces by a laser, so that the tabletting function is completed. The utility model integrates the traction and the laser cutting of the material belt, shortens the process path and avoids the pole piece wrinkling. The laser cutting pole piece has the advantages of small burrs, high speed and high compatibility.
In addition to the objects, features and advantages described above, the present utility model has other objects, features and advantages. The present utility model will be described in further detail with reference to the drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:
FIG. 1 is a front view of a laser trimming pellet mill for battery tape of the present utility model;
FIG. 2 is a top view of a laser trimming pellet mill for battery strips of the present utility model;
fig. 3 is an isometric view of a battery tape laser trimming pellet mill of the present utility model.
Detailed Description
The utility model will be described in detail below with reference to the drawings in connection with embodiments.
Referring to fig. 1 to 3 in combination, the battery material belt laser cutting and tabletting device of the utility model mainly comprises a laser cutter assembly 1, a pole piece traction rotary drum 2 and a dust removal system 3.
The pole piece traction winding drum 2 is driven by a servo motor 26 to rotate step by step, N equally-divided adsorption components are arranged on the periphery of the pole piece traction winding drum, the surfaces of the adsorption components are arc surfaces and are used for vacuum adsorption of a material belt wound on the adsorption components and synchronously rotate, and a laser cutting gap is formed between two adjacent adsorption components.
Preferably, the laser cutter assembly 1 comprises a laser 12, a manual adjustment sliding table and an axial movement module, and a laser cutting line generated by the laser cutter assembly is aligned with a laser cutting gap when the pole piece traction winding drum stops in a stepping manner, so that a material belt is cut, and a pole piece is generated.
The laser 12, namely a laser cutter, is arranged on the welding type fixed bracket 16 and is arranged on the manual adjustment sliding table below through a transition plate 31; the manual adjusting sliding table mainly comprises a hand wheel 6, a linear guide rail pair 5, a ball screw pair 9, a locking block 10 and a digital display scale 7.
Manual adjustment of the slipway can adjust the distance between the laser 12 and the pole piece to be cut to meet the correct focal length required during laser cutting. The manual adjustment sliding table is driven by the hand wheel 6, the ball screw pair 9 transmits power, the linear guide rail pair 5 plays a guiding role, the whole laser 12 of the hand wheel 6 is rocked to radially move relative to the traction rotary drum, the digital scale 7 displays the corresponding position in real time, the screw is locked by the locking block 10 when the digital scale is adjusted to the required position, the position is kept unchanged, and the influence of vibration on the cutting effect during operation of the whole equipment is eliminated.
The laser 12 is arranged entirely on the axially movable module following the manual adjustment slide. During cutting, the module drives the laser 12 to rapidly move from one section of the traction drum 2 to the other end, and the whole width of the pole piece is covered, so that cutting action is completed. The axial moving module is driven by the servo motor 13 to provide power, the linear guide rail pair 14 and the ball screw pair 15 inside the module play roles of limiting, guiding and transmitting power, and the group of photoelectric switches 17 can effectively detect two limit positions of the movement of the module and provide safety guarantee for the operation of equipment.
In addition, the connecting cable of the laser 12 passes through the drag chain 11, so that the cable is not bent and damaged in the running process. The laser cutter assembly 1 is fixedly supported by two legs 18. The legs 18 are angled to ensure that laser light generated by the laser cutting assembly 1 is incident radially on the pole piece pulling roll obliquely upward.
In one embodiment, the laser 12 is a galvanometer scanning laser. The method has the advantages of high cutting speed and high efficiency, and can greatly shorten the step-by-step stop time. Even allowing continuous non-stop rotation of the pole piece pulling roll 2, i.e. slow at cutting and fast at rotation.
The pole piece traction winding drum 2 draws a material belt extending downwards obliquely from above, and a single pole piece is horizontally led out from the bottom of the pole piece traction winding drum.
The pole piece traction rotary drum 2 is integrally fixed on the welding support leg 25, and the left and right are respectively arranged to ensure the integral stability. The pole piece traction drum 2 is driven by a servo motor 26 to rotate in steps as a whole. The adsorption component mainly comprises a vacuum adsorption plate 30 and an adsorption vacuum cavity 28. These 2 parts are in a group and are mounted on the adjustment support base 29. The adsorption component has an operating state of adsorbing material strips/pole pieces and a free state of desorption. For example, the working state of vacuumizing the adsorption vacuum cavity or the free state of communicating with the atmosphere can be controlled by an electromagnetic valve.
The traction rotary drum 2 is divided into 8 equal parts, and the vacuum adsorption plate 30 and the adsorption vacuum cavity 28 are combined together to tightly adsorb the material belt, so that the material belt is driven to rotate to a laser cutting position together. Preferably, the material belt wound on the pole piece traction reel 2 is absorbed by more than two absorption components before cutting and the single pole piece after cutting is absorbed by one absorption component, and the absorption component releases the absorption state when rotating to the blanking station.
In other examples, the traction drum may be in other equally divided forms, specifically determined by the pole piece dimensions, and may be self-designed according to pole piece specifications.
In addition, the pole piece after cutting and forming rotates to the next station along with the rotary drum, the suction is removed, the pole piece is sucked and conveyed by a downstream vacuum conveying belt, the pole lug and chamfer cutting of the single pole piece is realized in the next working procedure, and finally the complete single pole piece is output.
The dust generated in the laser cutting process is sucked into the dust removing equipment for filtration and purification by the dust removing system 3. The dust removing system 3 mainly comprises a dust collecting nozzle 19, an X-direction connecting shaft 20, a middle adjusting block 23, a Y-direction connecting shaft 21 and a base frame 24.
The dust suction nozzle 19 is arranged above the cutting line of the laser and the pole piece, and the dust generated by different factors such as different cutting base materials, different power of the laser and the like is inconsistent, so that the dust suction nozzle 19 needs to be adjusted to a proper position. The dust collection nozzle 19 is fixed on the adjusting block 23 through the X-direction connecting shaft 20 and the Y-direction connecting shaft 21, so that multi-angle and multi-position adjustment can be realized to meet the requirements. The entire dust removal system is furthermore fastened to one leg 25 of the traction drum 2 by means of a base frame 24.
The dust removal is carried out in the pole piece cutting movement, so that the time for running the equipment is not occupied, the running beat of the equipment can be saved, the independent power supply is not needed, the whole energy consumption of the equipment is reduced, and the production efficiency is improved.
The above description is only an example of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. A battery material belt laser cutting and tabletting device is characterized by comprising a pole piece traction winding drum, a laser cutting assembly and a dust removal system,
the pole piece traction winding drum is driven by a servo motor to rotate in a stepping way, N equally-divided adsorption components are arranged on the periphery of the pole piece traction winding drum, the surfaces of the adsorption components are arc surfaces and are used for vacuum adsorption of a material belt wound on the adsorption components and synchronously rotate, a laser cutting gap is arranged between two adjacent adsorption components,
the laser cutting assembly is arranged on the side face of the pole piece traction winding drum, a laser cutting line generated by the laser cutting assembly is aligned with a laser cutting gap when the pole piece traction winding drum stops in a stepping mode, a material belt is further cut, a pole piece is generated, and the adsorption assembly for adsorbing the pole piece is in an adsorption state when rotated to a blanking station.
2. The battery material tape laser cutting and sheeting apparatus of claim 1, wherein the pole piece traction reel pulls the material tape from above and a single pole piece is horizontally led out from the bottom of the pole piece traction reel, and the laser generated by the laser cutting assembly is obliquely and radially incident to the pole piece traction reel.
3. The device for cutting and flaking the battery material belt by laser according to claim 1, wherein the material belt wound on the pole piece traction winding drum is absorbed by more than two absorption components before cutting, the pole piece after cutting is still absorbed by the absorption components, and the absorption state is released when the absorption components rotate to a blanking station in a stepping way.
4. The battery material tape laser cutting and tabletting device according to claim 1, wherein the adsorption component comprises a vacuum adsorption plate and an adsorption cavity, the surface of the vacuum adsorption plate is an arc surface, and the adsorption component has an operating state of adsorbing material tape/pole piece and a free state of removing adsorption.
5. The battery tape laser trimming and sheeting apparatus of claim 1, wherein the laser trimming assembly comprises a laser and a manual adjustment slide, wherein the laser is fixedly connected to the manual adjustment slide, wherein the manual adjustment slide is used to adjust the distance between the laser and the pole piece to be cut.
6. The device for cutting and flaking the battery material belt by laser according to claim 5, wherein the laser cutting assembly further comprises an axial moving module and supporting legs supported by the axial moving module at two ends, and the top mounting surface of each supporting leg is an inclined surface so as to meet the requirement that laser generated by a laser obliquely and upwards radially enters the pole piece traction drum.
7. The battery material belt laser cutting and tabletting device according to claim 5, wherein the manual adjustment sliding table comprises a hand wheel, a linear guide rail pair, a ball screw pair, a locking block and a digital display scale, wherein the laser is arranged on the linear guide rail pair, the hand wheel is in driving connection with the ball screw pair and used for adjusting the position of the laser, the locking block is used for locking after the laser is adjusted in place, and the digital display scale is used for displaying the position parameters of the laser.
8. The battery tape laser trimming pellet mill of claim 5 wherein the laser is a galvanometer scanning laser.
9. The battery material belt laser cutting and tabletting device according to claim 1, wherein the dust removal system comprises a dust collection nozzle, an X-direction connecting shaft, an intermediate adjusting block, a Y-direction connecting shaft and a base frame, wherein the dust collection nozzle is connected to the X-direction connecting shaft, the X-direction connecting shaft is connected with the Y-direction connecting shaft through the intermediate adjusting block, and the Y-direction connecting shaft is connected to the base frame.
10. The battery tape laser cutting pellet mill of claim 1 wherein the pole piece traction spool engages a vacuum conveyor to transfer pole pieces that are free of the suction assembly to the vacuum conveyor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320555387.1U CN219665429U (en) | 2023-03-16 | 2023-03-16 | Battery material area laser cuts film-making device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320555387.1U CN219665429U (en) | 2023-03-16 | 2023-03-16 | Battery material area laser cuts film-making device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219665429U true CN219665429U (en) | 2023-09-12 |
Family
ID=87923656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320555387.1U Active CN219665429U (en) | 2023-03-16 | 2023-03-16 | Battery material area laser cuts film-making device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219665429U (en) |
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2023
- 2023-03-16 CN CN202320555387.1U patent/CN219665429U/en active Active
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