CN116454411A - Lithium strip coil preparation device and method - Google Patents
Lithium strip coil preparation device and method Download PDFInfo
- Publication number
- CN116454411A CN116454411A CN202310418526.0A CN202310418526A CN116454411A CN 116454411 A CN116454411 A CN 116454411A CN 202310418526 A CN202310418526 A CN 202310418526A CN 116454411 A CN116454411 A CN 116454411A
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- frame
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- winding
- diaphragm
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims description 16
- 238000004804 winding Methods 0.000 claims abstract description 97
- 238000007664 blowing Methods 0.000 claims abstract description 24
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 21
- 230000008569 process Effects 0.000 claims abstract description 18
- 238000004140 cleaning Methods 0.000 claims abstract description 17
- 238000005520 cutting process Methods 0.000 claims abstract description 17
- 239000000428 dust Substances 0.000 claims abstract description 15
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 11
- 238000003825 pressing Methods 0.000 claims description 19
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 16
- 229910001416 lithium ion Inorganic materials 0.000 claims description 16
- 230000003139 buffering effect Effects 0.000 claims description 11
- 238000005096 rolling process Methods 0.000 claims description 7
- 239000007921 spray Substances 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 239000012528 membrane Substances 0.000 claims 8
- 229920002799 BoPET Polymers 0.000 abstract description 29
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000009826 distribution Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 49
- 239000006247 magnetic powder Substances 0.000 description 11
- 239000002390 adhesive tape Substances 0.000 description 9
- 230000000712 assembly Effects 0.000 description 9
- 238000000429 assembly Methods 0.000 description 9
- 230000001360 synchronised effect Effects 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000007599 discharging Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
- H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H20/00—Advancing webs
- B65H20/30—Arrangements for accumulating surplus web
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
- B65H23/032—Controlling transverse register of web
- B65H23/038—Controlling transverse register of web by rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
- B65H35/04—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with transverse cutters or perforators
- B65H35/06—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with transverse cutters or perforators from or with blade, e.g. shear-blade, cutters or perforators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- 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
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention relates to the technical field of lithium battery production, and particularly discloses a lithium battery roll winding and preparing device which comprises a negative electrode unreeling device, a positive electrode unreeling device, a first PET film unreeling device, a second PET film unreeling device, a roller press device, a first diaphragm unreeling device, a second diaphragm unreeling device, a plasma cleaning assembly, a pole group roll-up device, a power distribution cabinet, a frame, a tape receiving platform, a tension buffer assembly, a process deviation correcting assembly, a dust removing assembly, a nitrogen blowing protection assembly and a cutting assembly, wherein the negative electrode unreeling device, the positive electrode unreeling device, the first PET film reeling device, the second PET film reeling device, the first PET film unreeling device, the second PET film unreeling device, the roller press device, the first diaphragm unreeling device, the second diaphragm unreeling device, the plasma cleaning assembly and the pole group roll-up device are respectively arranged on one side of the frame. The multifunctional flexible tape can achieve multiple compatibility of functions and size of the flexible tape, can achieve the aim of reducing cost, and can greatly improve the quality and the processing efficiency of products through full-automatic operation.
Description
Technical Field
The invention relates to the technical field of lithium battery production, in particular to a lithium belt winding preparation device and method.
Background
At present, before the pole piece lamination in the lithium battery component is formed, the positive and negative pole rolls are manufactured by a charge-discharge aging process, which is an important process before the lithium battery pole piece is formed, and the consistency of the internal resistance and the voltage of the lithium battery can be directly affected.
However, in the prior art, the battery is wound into a roll by a manual or semi-automatic device, so that the winding of the pole group roll is not regular, and the aging or charging and discharging of the pole group roll are affected, thereby causing the problems of reduced production efficiency and substandard production quality.
Disclosure of Invention
The invention aims to provide a lithium strip winding preparation device and method, and aims to solve the technical problems that in the prior art, battery winding is required to be wound into a roll by a manual or semi-automatic device, so that winding of a pole group is not neat, ageing or charging and discharging of the pole group are affected, and therefore production efficiency is reduced and production quality is not up to standard.
In order to achieve the above purpose, the lithium strip winding preparation device comprises a negative electrode winding, a positive electrode winding, a first PET film winding, a second PET film winding, a roller press, a first diaphragm winding, a second diaphragm winding, a plasma cleaning assembly, a pole group winding, a power distribution cabinet, a frame, a strip receiving platform, a tension buffer assembly, a process deviation rectifying assembly, a dust removal assembly, a nitrogen blowing protection assembly and a cutting assembly, wherein the negative electrode winding, the positive electrode winding, the first PET film winding, the second PET film winding, the roller press, the first diaphragm winding, the second diaphragm winding, the plasma cleaning assembly and the pole group winding are respectively arranged on one side of the frame, the number of the strip receiving platforms is a plurality of the strip receiving platforms are respectively arranged on one side of the frame, the tension buffer assembly is respectively arranged on one side of the frame, the frame is respectively connected with the frame, the number of the tension buffer assembly is respectively arranged on one side of the frame, and the frame is respectively, the number of the tension buffer assembly is respectively arranged on one side of the frame.
The negative electrode unreeling device comprises a first air expansion shaft, a first ultrasonic sensor, a first servo motor, a deviation rectifying motor, a locating plate and first passing rollers, wherein the locating plate is fixedly connected with the first air expansion shaft and located on the outer surface wall of the first air expansion shaft, the first servo motor is fixedly connected with the first air expansion shaft and located at one end of the first air expansion shaft, the deviation rectifying motor is arranged at the lower end of the first air expansion shaft, the number of the first passing rollers is two, the two first passing rollers are respectively arranged at the upper ends of the first air expansion shaft, and the first ultrasonic sensor is arranged at the upper ends of the first passing rollers.
Each tape connecting platform comprises a platform panel, a first pressing plate, a second pressing plate, a first air cylinder, a second air cylinder and a vacuum suction cover, wherein the platform panel is fixedly connected with the frame and is positioned on one side of the frame, the first pressing plate is arranged at the upper end of the platform panel, the second pressing plate is arranged at the upper end of the platform panel and is positioned on one side of the first pressing plate, the first air cylinder and the second air cylinder are respectively arranged at the lower end of the platform panel, and the vacuum suction cover is fixedly connected with the platform panel and is positioned at the lower end of the platform panel.
Each tension buffer assembly comprises a swinging roller, a third cylinder, a proportional valve, an encoder and a second roller, wherein the swinging rollers are arranged on one side of the frame, the encoder is arranged at one end of the swinging rollers, the proportional valve is arranged at the lower end of the encoder, the third cylinder is arranged at one side of the proportional valve, the number of the second rollers is two, and the two second rollers are respectively arranged at the lower ends of the swinging rollers.
Each process deviation correcting assembly comprises a deviation correcting roller, a second ultrasonic sensor and a third roller, wherein the deviation correcting roller is arranged on one side of the frame, the second ultrasonic sensor is fixedly connected with the deviation correcting roller and is positioned on one side of the deviation correcting roller, and the third roller is arranged on one side of the frame and is positioned at the lower end of the deviation correcting roller.
The dust removal assembly comprises a hairbrush roller, a speed adjusting motor, a fourth air cylinder and a first air suction cover, wherein the first air suction cover is arranged on one side of the frame, the hairbrush roller is arranged in the first air suction cover, the speed adjusting motor is arranged at one end of the first air suction cover, the output end of the speed adjusting motor penetrates through the first air suction cover and is fixedly connected with the hairbrush roller, and the fourth air cylinder is arranged at one end of the speed adjusting motor.
The plasma cleaning assembly comprises a plasma spray gun, a second air suction cover and an adjusting handle, wherein the second air suction cover is arranged on one side of the frame, the adjusting handle is fixedly connected with the second air suction cover and is positioned on one side of the second air suction cover, and the plasma spray gun is arranged at the lower end of the adjusting handle.
The nitrogen blowing protection assembly comprises a support plate, a blowing cover and a fifth air cylinder, wherein the support plate is fixedly connected with the frame and is positioned on one side of the frame, the number of the blowing covers is two, the two blowing covers are respectively arranged at the lower end of the support plate, the number of the fifth air cylinder is two, and the two fifth air cylinders are respectively arranged at the upper end of the support plate.
The cutting assembly comprises an upper cutter, a lower cutter, a sixth air cylinder, a second servo motor, a first upper pressing roller and a first driving roller, wherein the first driving roller is arranged on one side of the frame, the first upper pressing roller is arranged at the upper end of the first driving roller, the second servo motor is arranged at one end of the first driving roller, the upper cutter and the lower cutter are arranged on one side of the first driving roller, the upper cutter is arranged at the upper end of the lower cutter, the number of the sixth air cylinders is two, and the two sixth air cylinders are respectively arranged at the upper ends of the upper cutters.
The invention also provides a lithium belt winding method which is applied to the lithium belt winding preparation device and comprises the following steps:
releasing a lithium battery pole piece through unreeling the negative electrode and unreeling the positive electrode;
when the lithium battery pole piece is released, the first diaphragm unreels and the second diaphragm unreels respectively release corresponding diaphragms;
performing deviation rectifying operation on the lithium battery pole piece through the deviation rectifying motor;
the lithium battery pole pieces are connected in a belt connection mode through the belt connection platform;
respectively carrying out tension buffering on the diaphragm and the lithium battery pole piece through the tension buffering assembly;
cutting off the diaphragm after tension buffering;
correcting the lithium battery pole piece through the corresponding process correction component;
cutting off the lithium battery pole piece;
finally, winding the lithium battery pole piece and the diaphragm through the pole group winding;
thus, winding of the pole group coil is completed.
The lithium strip coil preparation device and the lithium strip coil preparation method have the beneficial effects that: the winding device has the advantages that the winding device can be used for adjusting the material strips with different widths in the winding process of the material rolls, the clockwise winding process can be performed, the anticlockwise splitting process can be performed, the multi-compatibility of functions and the size of the material strips is achieved, the cost is reduced compared with the purchasing of two different devices, and the quality and the processing efficiency of products can be greatly improved through full-automatic operation.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of a lithium-ion secondary battery tape winding and preparing apparatus of the present invention.
Fig. 2 is a front view of a lithium-band roll preparation device of the present invention.
Fig. 3 is a schematic view of the negative electrode unreeling structure of the present invention.
Fig. 4 is a side view of the negative electrode of the present invention unreeled.
Fig. 5 is a schematic structural view of the taping platform of the present invention.
Fig. 6 is a bottom view of the taping platform of the present invention.
Fig. 7 is a schematic structural view of the tension buffering assembly of the present invention.
Fig. 8 is a schematic diagram of a process control kit according to the present invention.
Fig. 9 is a schematic view of the dust removing assembly of the present invention.
Fig. 10 is a schematic view of the structure of the plasma cleaning assembly of the present invention.
Fig. 11 is a schematic view of the structure of the nitrogen-blowing protection assembly of the present invention.
Fig. 12 is a schematic structural view of the cutting assembly of the present invention.
Fig. 13 is a side view of the cutting assembly of the present invention.
Fig. 14 is a schematic view of the structure of a pole group winding of the present invention.
Fig. 15 is a schematic view of the structure of the unreeling of the adhesive tape of the present invention.
Fig. 16 is a schematic view of the structure of the first PET film winding of the present invention.
Fig. 17 is a schematic view showing the structure of unreeling the first PET film of the present invention.
Fig. 18 is a schematic view of the structure of the upper roll body of the present invention.
Fig. 19 is a schematic view of the structure of the roll squeezer of the present invention.
Fig. 20 is a process step flowchart of a lithium secondary winding method of embodiment 1 of the present invention.
Fig. 21 is a process step flowchart of a lithium secondary winding method of embodiment 2 of the present invention.
1-cathode unwind, 2-anode unwind, 3-first PET film wind-up, 4-second PET film wind-up, 5-first PET film unwind, 6-second PET film unwind, 7-roller press, 8-first diaphragm unwind, 9-second diaphragm unwind, 10-plasma cleaning assembly, 11-pole group wind-up, 12-power distribution cabinet, 13-stand, 14-belt receiving platform, 15-tension buffer assembly, 16-process deviation correcting assembly, 17-dust removal assembly, 18-nitrogen blowing gas protection assembly, 19-cutting assembly, 20-first air expansion shaft, 21-first ultrasonic sensor, 22-first servo motor, 23-deviation correcting motor, 24-locating plate, 25-first air passing roller, 26-platform panel, 27-first platen, 28-second platen, 29-first cylinder, 30-second cylinder, 31-vacuum suction hood, 32-swing roller, 33-third cylinder, 34-proportional valve, 35-encoder, 36-second air passing roller, 37-second air passing roller, 38-second ultrasonic sensor, 22-first air suction roller, 35-third air suction roller, 48-fourth air suction roller, 48-third air suction roller, 48-suction roller, 35-third air suction roller, fourth air suction roller, 48-fourth air suction roller, 48-fourth air suction roller, and the like, 56-third servo motor, 57-seventh cylinder, 58-stepper motor, 59-ball screw, 60-first synchronous pulley, 61-pole group roll, 62-non-steel pipe roll core, 63-tape unreeling, 64-fourth passing roll, 65-eighth cylinder, 66-ninth cylinder, 67-tenth cylinder, 68-cutter, 69-second air-expanding shaft, 70-magnetic powder clutch, 71-second synchronous pulley, 72-fourth servo motor, 73-magnetic powder brake, 74-third air-expanding shaft, 75-upper roll body, 76-lower roll body, 77-heating wire, 78-receiving plate, 79-eleventh cylinder, 80-fifth servo motor, 81-second upper press roll, 82-second driving roll, 83-auxiliary roll, 84-sixth servo motor, 85-rack gear, 86-speed reducing motor, 87-coupling, 88-tilting block.
Detailed Description
Referring to fig. 1 to 19, the invention provides a lithium-ion band winding preparation device, which comprises a cathode winding 1, an anode winding 2, a first PET film winding 3, a second PET film winding 4, a first PET film winding 5, a second PET film winding 6, a roller press 7, a first diaphragm winding 8, a second diaphragm winding 9, a plasma cleaning assembly 10, a pole group winding 11, a power distribution cabinet 12, a frame 13, a band receiving platform 14, a tension buffer assembly 15, a process deviation correcting assembly 16, a dust removal assembly 17, a nitrogen-blowing protection assembly 18 and a cutting assembly 19, wherein the cathode winding 1, the anode winding 2, the first PET film winding 3, the second PET film winding 4, the first PET film winding 5, the second PET film winding 6, the roller press 7, the first diaphragm winding 8, the second diaphragm winding 9, the plasma cleaning assembly 10 and the pole group winding 11 are respectively arranged on one side of the frame 13, the number of the tension buffer assemblies is respectively arranged on the frame 13, the number of the tension buffer assemblies 14 is respectively arranged on one side of the frame 13, the number of the tension buffer assemblies 13 is respectively arranged on one side of the frame 13, the frame 13 is respectively, the number of the tension buffer assemblies is respectively arranged on one side 13, and the number of the frame assemblies is respectively arranged on one side 13, and the frame 13 is respectively, and the number of tension buffer assemblies is respectively arranged on one side 13 and is respectively 13.
In this embodiment, during winding, the positive and negative electrode rolls are respectively fed into the corresponding negative electrode unreeling 1 and positive electrode unreeling 2 by a person, after passing through rollers, the material tape is spliced on the tape receiving platform 14 by a person, after passing through the tension buffer assembly 15, the discharging tension is controlled, and the constant speed of the material tape is guaranteed to be fed out, after deviation correction is carried out on the material tape, during tape passing, the dust removal assemblies 17 are carried out on the front and back sides of the material tape, the material tape is quantitatively and orderly cut before winding, finally the material tape is fed to winding, the two diaphragms are respectively fed into the diaphragm unreeling mechanism by a person, discharged through the tension buffer assembly 15, and guaranteed to be uniformly fed out, and the negative electrode is wrapped and wound, wherein the positive electrode roll, the negative electrode roll and the diaphragm roll are simultaneously unreeled, and finally the winding is the pole group roll 61;
when the pole group coil 61 is split, a worker sends the pole group coil 61 into the pole group coil winding 11, the material belt is spliced in order manually through the belt receiving platform 14, when the pole group coil 61 is split, the positive pole coil, the negative pole coil and the diaphragm coil are split respectively, and the uniform constant speed of the material belt is guaranteed to be sent out for winding.
Further, the negative electrode unreeling 1 includes a first air expansion shaft 20, a first ultrasonic sensor 21, a first servo motor 22, a deviation rectifying motor 23, a positioning plate 24 and a first passing roller 25, the positioning plate 24 is fixedly connected with the first air expansion shaft 20 and is located on the outer surface wall of the first air expansion shaft 20, the first servo motor 22 is fixedly connected with the first air expansion shaft 20 and is located at one end of the first air expansion shaft 20, the deviation rectifying motor 23 is arranged at the lower end of the first air expansion shaft 20, the number of the first passing rollers 25 is two, the two first passing rollers 25 are respectively arranged at the upper end of the first air expansion shaft 20, and the first ultrasonic sensor 21 is arranged at the upper end of the first passing roller 25.
In this embodiment, the positive electrode unreeling 2 and the negative electrode unreeling 1 have the same structure, and when the winding is performed, the deviation rectifying motor 23 is in a fixed installation mode, if the raw material belt deviates, the deviation rectifying motor 23 controls the first air expansion shaft 20 to move left and right for deviation rectifying, so that the accurate material belt centering discharging is ensured;
when the material is split, the deviation rectifying motor 23 and the first ultrasonic sensor 21 are installed in a movable mode, when the material is rolled, if the material is coiled, the deviation rectifying motor 23 is used for rectifying and compensating, namely, when the material is cheaper to the left, the deviation rectifying motor 23 is used for rectifying the deviation to the right, otherwise, the material is rectified to the left, and therefore the material is ensured to be centered and accurately discharged.
Further, each of the tape splicing platforms 14 includes a platform panel 26, a first pressing plate 27, a second pressing plate 28, a first air cylinder 29, a second air cylinder 30, and a vacuum hood 31, wherein the platform panel 26 is fixedly connected with the frame 13 and located at one side of the frame 13, the first pressing plate 27 is disposed at the upper end of the platform panel 26, the second pressing plate 28 is disposed at the upper end of the platform panel 26 and located at one side of the first pressing plate 27, the first air cylinder 29 and the second air cylinder 30 are respectively disposed at the lower end of the platform panel 26, and the vacuum hood 31 is fixedly connected with the platform panel 26 and located at the lower end of the platform panel 26.
In this embodiment, when the winding is performed, after the current material tape is detected and used, the second air cylinder 30 is pressed down by the control of the person when passing through the platform panel 26, the material tape is not fed any more, after the new material is received and aligned with the tail of the used material tape, the material tape is fed onto the platform panel 26, the first air cylinder 29 is pressed down and clamped, the adhesive tape is taken out and attached to the upper splicing position, after the completion, the first air cylinder 29 and the second air cylinder 30 are released, the material tape continues to run, and the tape receiving platform 14 is not used when the detachment is performed.
Further, each tension buffering assembly 15 includes a swinging roller 32, a third cylinder 33, a proportional valve 34, an encoder 35 and a second passing roller 36, the swinging roller 32 is disposed on one side of the frame 13, the encoder 35 is disposed on one end of the swinging roller 32, the proportional valve 34 is disposed on the lower end of the encoder 35, the third cylinder 33 is disposed on one side of the proportional valve 34, the number of the second passing rollers 36 is two, and the two second passing rollers 36 are respectively disposed on the lower ends of the swinging roller 32.
In this embodiment, after the material tape is wound around one of the second passing rollers 36, the material tape passes through the oscillating roller 32 and then passes through the other second passing roller 36, and the oscillating roller 32 is controlled by the encoder 35 and the proportional valve 34, so that tension adjustment of the material tape is achieved by the oscillating roller 32.
Further, each process deviation correcting assembly 16 includes a deviation correcting roller 37, a second ultrasonic sensor 38 and a third passing roller 39, the deviation correcting roller 37 is disposed on one side of the frame 13, the second ultrasonic sensor 38 is fixedly connected to the deviation correcting roller 37 and is located on one side of the deviation correcting roller 37, and the third passing roller 39 is disposed on one side of the frame 13 and is located at the lower end of the deviation correcting roller 37.
In this embodiment, the process deviation correcting component 16 is mainly configured to keep the material belt running in a centering manner during the material belt feeding process, and if the material belt deviates, the second ultrasonic sensor 38 detects that the material belt deviates and feeds back to the deviation correcting roller 37 to perform deviation correction compensation, so that the material belt can stably perform the centering operation.
Further, the dust removing assembly 17 includes a brush roller 40, a speed adjusting motor 41, a fourth air cylinder 42 and a first air suction cover 43, the first air suction cover 43 is disposed on one side of the frame 13, the brush roller 40 is disposed in the first air suction cover 43, the speed adjusting motor 41 is disposed at one end of the first air suction cover 43, an output end of the speed adjusting motor 41 penetrates through the first air suction cover 43 and is fixedly connected with the brush roller 40, and the fourth air cylinder 42 is disposed at one end of the speed adjusting motor 41.
In this embodiment, the surface cleaning and dust removal are performed on the front and back surfaces of the material belt during the conveying process of the material belt, and the cleaned dust is sucked by the first suction hood 43, and the brush roller 40 is driven by the speed regulating motor 41, so that the surface of the material belt is cleaned by the brush roller 40.
Further, the plasma cleaning assembly 10 includes a plasma spray gun 44, a second air suction cover 45 and an adjusting grip 46, the second air suction cover 45 is disposed on one side of the frame 13, the adjusting grip 46 is fixedly connected with the second air suction cover 45 and is disposed on one side of the second air suction cover 45, and the plasma spray gun 44 is disposed at the lower end of the adjusting grip 46.
In this embodiment, the process of carrying away the material is used to remove dust particles from the plasma surface at the tab foils at both sides, the angle of the plasma spray gun 44 is adjusted by the adjusting grip 46, and the second suction hood 45 sucks the blown dust.
Further, the nitrogen protection assembly 18 includes a support plate 47, a blowing cover 48 and a fifth air cylinder 49, the support plate 47 is fixedly connected to the frame 13 and is located at one side of the frame 13, the number of the blowing covers 48 is two, the two blowing covers 48 are respectively disposed at the lower ends of the support plate 47, the number of the fifth air cylinders 49 is two, and the two fifth air cylinders 49 are respectively disposed at the upper ends of the support plate 47.
In this embodiment, the support plate 47 supports the air blowing cover 48 and the fifth air cylinder 49, the air blowing covers 48 are two opposite, the height between the two air blowing covers 48 is adjusted by the fifth air cylinder 49, and the material belt passes between the two air blowing covers 48, so that the purpose of leakage of redundant nitrogen can be achieved, and the material belt can be protected by blowing out the nitrogen.
Further, the cutting assembly 19 includes an upper cutter 50, a lower cutter 51, a sixth air cylinder 52, a second servo motor 53, a first upper press roller 54 and a first drive roller 55, the first drive roller 55 is disposed on one side of the frame 13, the first upper press roller 54 is disposed on an upper end of the first drive roller 55, the second servo motor 53 is disposed on one end of the first drive roller 55, the upper cutter 50 and the lower cutter 51 are disposed on one side of the first drive roller 55, and the upper cutter 50 is disposed on an upper end of the lower cutter 51, the number of the sixth air cylinders 52 is two, and the two sixth air cylinders 52 are respectively disposed on an upper end of the upper cutter 50.
In this embodiment, the cutting assembly 19 is configured to cut the material strip after a certain length, the lower cutter 51 is fixedly mounted, the upper cutter 50 uses the sixth cylinder 52 to press down to cut the material strip, the upper cutter 50 and the lower cutter 51 use SKD11, and the cutter for grinding the finished product once can cut 30 ten thousand times.
Further, the pole group winding 11 includes a third servo motor 56, a seventh cylinder 57, a stepping motor 58, a ball screw 59, a first synchronous pulley 60, a pole group winding 61, and a non-steel pipe winding core 62, the pole group winding 61 is disposed on one side of the frame 13, the seventh cylinder 57 is disposed on one end of the pole group winding 61, the third servo motor 56 is disposed on one side of the seventh cylinder 57, the stepping motor 58 is disposed on one side of the third servo motor 56, the ball screw 59 is disposed on one side of the pole group winding 61, the first synchronous pulley 60 is disposed on one side of the pole group winding 61, and the non-steel pipe winding core 62 is sleeved on an outer surface wall of the pole group winding 61.
In this embodiment, the third servo motor 56 is matched with the first synchronous pulley 60 to drive the pole group coil 61 to rotate, so that the material belt is wound, the stepping motor 58 is matched with the ball screw 59 to move the whole winding structure, and after the non-steel pipe coil 62 is manually wound, the non-steel pipe coil 62 is conveniently connected to the material belt manually.
Further, the lithium band winding preparation device further comprises a tape unreeling 63, a fourth passing roller 64, an eighth air cylinder 65, a ninth air cylinder 66, a tenth air cylinder 67 and a cutter 68, wherein the tape unreeling 63 is arranged on one side of the frame 13, the number of the fourth passing rollers 64 is multiple, each fourth passing roller 64 is respectively arranged on one side of the tape unreeling 63, the eighth air cylinder 65 is arranged on one side of the tape unreeling 63, the ninth air cylinder 66 is arranged on one side of the tape unreeling 63, the tenth air cylinder 67 is arranged on one side of the tape unreeling 63, and the cutter 68 is arranged on one side of the tape unreeling 63.
In this embodiment, after the pole group roll 61 is wound, the roll is bound by using an adhesive tape, the adhesive tape is manually wound at the position 63 where the adhesive tape is unwound, the adhesive tape is in a free sliding state, the internal spring stretches the 4 small plates, the adhesive tape is tensioned, the tenth cylinder 67 controls the tape feeding out, the adhesive tape is automatically bound after being adhered with the roll, and the ninth cylinder 66 ejects the cutter 68 to cut off the adhesive tape after completion.
Further, the first PET film winding 3 includes a second air-expanding shaft 69, a magnetic powder clutch 70, a second synchronous pulley 71 and a fourth servo motor 72, the magnetic powder clutch 70 is disposed on one side of the frame 13, the second air-expanding shaft 69 is disposed at one end of the magnetic powder clutch 70, the fourth servo motor 72 is disposed at the lower end of the magnetic powder clutch 70, and the second synchronous pulley 71 is disposed on one side of the magnetic powder clutch 70 and one side of the fourth servo motor 72.
In this embodiment, the structures of the first PET film winding 3, the second PET film winding 4, the first diaphragm unwinding 8 and the second diaphragm unwinding 9 are all identical, the magnetic powder clutch 70 and the second air expansion shaft 69 are coaxial and run at the same rotation speed, the material roll is locked coaxially, the positioning plate 24 is arranged on the air expansion shaft, and the second air expansion shaft 69 is attached with scale marking auxiliary calibration.
Further, the first PET film unreeling 5 includes a magnetic powder brake 73 and a third air expansion shaft 74, the third air expansion shaft 74 is disposed on one side of the frame 13, and the magnetic powder brake 73 is disposed on one end of the third air expansion shaft 74.
In this embodiment, for unreeling the PET film, the magnetic powder brake 73 is used to control the third air expansion shaft 74 to unreel and discharge.
Further, the lithium band winding preparation device further comprises an upper roller body 75, a lower roller body 76, a heating wire 77, a band-receiving plate 78, an eleventh air cylinder 79 and a fifth servo motor 80, wherein the upper roller body 75 is arranged on one side of the frame 13, the lower roller body 76 is positioned at the lower end of the upper roller body 75, the heating wire 77 is arranged at the upper end of the upper roller body 75, the eleventh air cylinder 79 is arranged at the upper end of the upper roller body 75, the fifth servo motor 80 is arranged at the lower end of the lower roller body 76, and the band-receiving plate 78 is arranged on one side of the lower roller body 76.
In this embodiment, during winding, the positive and negative electrode strips are combined with the strips discharged from the two diaphragms, the diaphragms are cut by scalding after the winding is completed, the fifth servo motor 80 is matched to control the lower roller body 76 to lift, the eleventh cylinder 79 is used for pressing down the lower roller body 76, the four strips are combined at the same position, and after the winding is completed, the positive and negative electrode strips are wound, the eleventh cylinder 79 is used for pressing down the heating wire 77 to cut the diaphragms by scalding;
when the material belt is split, after being fed, the material belt cut before can be manually spliced with the newly fed material belt in order by lifting the material belt receiving plate 78, and the split transportation is continued after the completion.
Further, the roll squeezer 7 includes a second upper press roll 81, a second drive roll 82, an auxiliary roll 83, a sixth servo motor 84, a gear rack 85, a gear motor 86, a coupling 87 and an inclined block 88, the second upper press roll 81 and the second drive roll 82 are respectively disposed at the upper end of the frame 13, the second upper press roll 81 is disposed at the upper end of the second drive roll 82, the auxiliary roll 83 is disposed at one side of the second drive roll 82, the sixth servo motor 84 is disposed at one end of the upper press roll, the gear rack 85 is disposed at one end of the second upper press roll 81 and one end of the second drive roll 82, the gear motor 86 is disposed at one side of the gear rack 85, the coupling 87 is disposed at one end of the second drive roll 82, and the inclined block 88 is disposed between the second upper press roll 81 and the second drive roll 82.
In this embodiment, when the electrode group roll 61 is disassembled, a plurality of dust drops after being discharged, the structure is that the negative electrode material belt is rolled and pressed, a sixth servo motor 84 is adopted to control the second driving roller 82, the second upper pressing roller 81 is synchronously controlled to rotate through the gear rack 85, the auxiliary roller 83 is matched with the material passing, the gear motor 86 is matched with a screw rod to control the gap between the second upper pressing roller 81 and the second driving roller 82, the inclined block 88 is adopted to adjust in a rolling way, the coupler 87 is matched with the sixth servo motor 84, and the rotation function is not affected when the gap between the second upper pressing roller 81 and the second driving roller 82 is adjusted;
at the time of winding, the roll press 7 is not used, and neither the second upper press roll 81 nor the second drive roll 82 is rotated.
Example 1:
referring to fig. 20, the present invention further provides a lithium-ion band winding method, which is applied to the above-mentioned lithium-ion band winding preparation device, and includes the following steps:
s1: releasing a lithium battery pole piece through the negative electrode unreeling 1 and the positive electrode unreeling 2;
s2: the first diaphragm unreeling 8 and the second diaphragm unreeling 9 release corresponding diaphragms respectively when the lithium battery pole piece is released;
s3: the lithium battery pole piece performs deviation rectifying operation through the deviation rectifying motor 23;
s4: the lithium battery pole pieces are connected in a belt connection mode through the belt connection platform 14;
s5: tension buffering is respectively carried out on the diaphragm and the lithium battery pole piece through the tension buffering component 15;
s6: cutting off the diaphragm after tension buffering;
s7: correcting the deviation of the lithium battery pole piece through the corresponding process deviation correcting assembly 16;
s8: cutting off the lithium battery pole piece;
s9: finally, winding the lithium battery pole piece and the diaphragm through the pole group winding 11;
s10: thereby completing the winding of the pole group roll 61.
Example 2:
referring to fig. 21, the present invention further provides a lithium-ion band winding method, which is applied to the above-mentioned lithium-ion band winding preparation device, and includes the following steps:
s1: placing an electrode roll on the electrode group roll 61, winding the anode and the cathode on the tape receiving platform 14 respectively, and enabling the diaphragms to pass through the tension buffer assemblies 15 respectively;
s2: the diaphragm is respectively wound through the two tension buffer assemblies 15;
s3: after the negative electrode roll passes through the tape connecting platform 14, rolling the negative electrode by the roller press 7, and finally correcting the deviation by the corresponding tension buffer assembly 15, and then rolling the negative electrode;
s4: after passing through the tape receiving platform 14, the positive electrode roll passes through the tension buffer assembly 15 and then is subjected to plasma cleaning by the plasma cleaning assembly 10, and then correction is performed, and finally, the positive electrode roll is wound;
s5: thus completing the splitting of the pole group coils 61.
In the invention, the winding can be carried out clockwise or the splitting can be carried out anticlockwise, so that the multi-compatibility of functions and material tape size is achieved, the aim of reducing the cost can be achieved relative to purchasing two different devices, and the quality and the processing efficiency of the product can be greatly improved through full-automatic operation.
The above disclosure is only a preferred embodiment of the present invention, and it should be understood that the scope of the invention is not limited thereto, and those skilled in the art will appreciate that all or part of the procedures described above can be performed according to the equivalent changes of the claims, and still fall within the scope of the present invention.
Claims (10)
1. A lithium strip coil preparation device is characterized in that,
including negative pole unreel, anodal unreel, first PET membrane rolling, second PET membrane rolling, first PET membrane unreel, second PET membrane unreel, roll squeezer, first diaphragm unreel, second diaphragm unreel, plasma cleaning subassembly, utmost point crowd roll-up, switch board, frame, connect area platform, tension buffer assembly, process rectify subassembly, dust removal subassembly, nitrogen blowing protection subassembly and cutting assembly, the negative pole unreel the anodal unreel first PET membrane rolling second PET membrane rolling first PET membrane unreel the second PET membrane unreel the roll squeezer first diaphragm unreel the second diaphragm unreel plasma cleaning subassembly with utmost point crowd roll-up set up respectively in one side of frame, connect area platform quantity be a plurality of, every connect area platform set up respectively in one side of frame, tension buffer assembly's quantity be a plurality of, every tension assembly set up respectively in one side of frame the nitrogen blowing protection subassembly sets up in one side of frame the correction subassembly sets up in one side of frame, the plasma cleaning assembly sets up in one side of frame, the nitrogen blowing protection subassembly sets up in one side of frame one side of the frame sets up the one side of the frame.
2. A lithium-ion secondary battery as claimed in claim 1, wherein,
the negative electrode unreeling device comprises a first air expansion shaft, a first ultrasonic sensor, a first servo motor, a deviation correcting motor, a positioning plate and first passing rollers, wherein the positioning plate is fixedly connected with the first air expansion shaft and is positioned on the outer surface wall of the first air expansion shaft, the first servo motor is fixedly connected with the first air expansion shaft and is positioned at one end of the first air expansion shaft, the deviation correcting motor is arranged at the lower end of the first air expansion shaft, the number of the first passing rollers is two, the first passing rollers are respectively arranged at the upper ends of the first air expansion shafts, and the first ultrasonic sensor is arranged at the upper ends of the first passing rollers.
3. A lithium-ion secondary battery as claimed in claim 2, wherein,
every connect area platform include platform panel, first clamp plate, second clamp plate, first cylinder, second cylinder and vacuum hood, the platform panel with frame fixed connection, and be located one side of frame, first clamp plate set up in the upper end of platform panel, the second clamp plate set up in the upper end of platform panel, and be located one side of first clamp plate, first cylinder with the second cylinder set up respectively in the lower extreme of platform panel, vacuum hood with platform panel fixed connection, and be located the lower extreme of platform panel.
4. A lithium-ion secondary battery as claimed in claim 3, wherein,
every tension buffer memory subassembly includes swing roller, third cylinder, proportional valve, encoder and second pass the roller, the swing roller set up in one side of frame, the encoder set up in the one end of swing roller, the proportional valve set up in the lower extreme of encoder, the third cylinder set up in one side of proportional valve, the quantity of second passes the roller is two, two the second pass the roller set up respectively in the lower extreme of swing roller.
5. A lithium-ion secondary battery as claimed in claim 4, wherein,
each process deviation correcting assembly comprises a deviation correcting roller, a second ultrasonic sensor and a third roller, wherein the deviation correcting roller is arranged on one side of the frame, the second ultrasonic sensor is fixedly connected with the deviation correcting roller and is positioned on one side of the deviation correcting roller, and the third roller is arranged on one side of the frame and is positioned at the lower end of the deviation correcting roller.
6. A lithium-ion secondary battery as claimed in claim 5, wherein,
the dust removal assembly comprises a hairbrush roller, a speed regulating motor, a fourth air cylinder and a first air suction cover, wherein the first air suction cover is arranged on one side of the frame, the hairbrush roller is arranged in the first air suction cover, the speed regulating motor is arranged at one end of the first air suction cover, the output end of the speed regulating motor penetrates through the first air suction cover and is fixedly connected with the hairbrush roller, and the fourth air cylinder is arranged at one end of the speed regulating motor.
7. A lithium-ion secondary battery as claimed in claim 6, wherein,
the plasma cleaning assembly comprises a plasma spray gun, a second air suction cover and an adjusting handle, wherein the second air suction cover is arranged on one side of the stand, the adjusting handle is fixedly connected with the second air suction cover and is positioned on one side of the second air suction cover, and the plasma spray gun is arranged at the lower end of the adjusting handle.
8. The lithium-ion battery tape winding and preparing apparatus of claim 7, wherein,
the nitrogen blowing protection assembly comprises a support plate, a blowing cover and a fifth cylinder, wherein the support plate is fixedly connected with the frame and is positioned on one side of the frame, the number of the blowing covers is two, the two blowing covers are respectively arranged at the lower end of the support plate, the number of the fifth cylinder is two, and the two fifth cylinders are respectively arranged at the upper end of the support plate.
9. The lithium-ion battery tape winding and preparing apparatus of claim 8, wherein,
the cutting assembly comprises an upper cutter, a lower cutter, a sixth air cylinder, a second servo motor, a first upper pressing roller and a first driving roller, wherein the first driving roller is arranged on one side of the frame, the first upper pressing roller is arranged at the upper end of the first driving roller, the second servo motor is arranged at one end of the first driving roller, the upper cutter and the lower cutter are arranged on one side of the first driving roller, the upper cutters are arranged at the upper ends of the lower cutters, the number of the sixth air cylinders is two, and the two sixth air cylinders are respectively arranged at the upper ends of the upper cutters.
10. A lithium-ion band winding method applied to the lithium-ion band winding preparation device as claimed in claim 9, characterized by comprising the following steps:
releasing a lithium battery pole piece through unreeling the negative electrode and unreeling the positive electrode;
when the lithium battery pole piece is released, the first diaphragm unreels and the second diaphragm unreels respectively release corresponding diaphragms;
performing deviation rectifying operation on the lithium battery pole piece through the deviation rectifying motor;
the lithium battery pole pieces are connected in a belt connection mode through the belt connection platform;
respectively carrying out tension buffering on the diaphragm and the lithium battery pole piece through the tension buffering assembly;
cutting off the diaphragm after tension buffering;
correcting the lithium battery pole piece through the corresponding process correction component;
cutting off the lithium battery pole piece;
finally, winding the lithium battery pole piece and the diaphragm through the pole group winding;
thus, winding of the pole group coil is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310418526.0A CN116454411A (en) | 2023-04-19 | 2023-04-19 | Lithium strip coil preparation device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310418526.0A CN116454411A (en) | 2023-04-19 | 2023-04-19 | Lithium strip coil preparation device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116454411A true CN116454411A (en) | 2023-07-18 |
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ID=87129849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310418526.0A Pending CN116454411A (en) | 2023-04-19 | 2023-04-19 | Lithium strip coil preparation device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116454411A (en) |
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2023
- 2023-04-19 CN CN202310418526.0A patent/CN116454411A/en active Pending
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