CN111106377B - Pole piece single-roll rubberizing device and square power battery core winding machine - Google Patents
Pole piece single-roll rubberizing device and square power battery core winding machine Download PDFInfo
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- CN111106377B CN111106377B CN201911422579.XA CN201911422579A CN111106377B CN 111106377 B CN111106377 B CN 111106377B CN 201911422579 A CN201911422579 A CN 201911422579A CN 111106377 B CN111106377 B CN 111106377B
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- 238000004804 winding Methods 0.000 title claims abstract description 217
- 230000007246 mechanism Effects 0.000 claims abstract description 96
- 238000003825 pressing Methods 0.000 claims abstract description 45
- 238000000034 method Methods 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims description 18
- 238000011084 recovery Methods 0.000 claims description 18
- 230000000903 blocking effect Effects 0.000 claims description 14
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- 238000004064 recycling Methods 0.000 claims description 4
- 230000002950 deficient Effects 0.000 abstract description 123
- 230000008569 process Effects 0.000 abstract description 9
- 239000002390 adhesive tape Substances 0.000 description 19
- 230000005540 biological transmission Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000003292 glue Substances 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 5
- 230000000712 assembly Effects 0.000 description 4
- 238000000429 assembly Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000012840 feeding operation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
Classifications
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0404—Machines for assembling batteries
- H01M10/0409—Machines for assembling batteries for cells with wound electrodes
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention provides a pole piece single-roll rubberizing device and a square power battery cell winding machine, wherein the pole piece single-roll rubberizing device comprises a mounting seat and a first guide rail; the winding unit comprises a first sliding seat connected with the first guide rail, a winding needle arranged on the first sliding seat, a first driving mechanism for driving the winding needle to rotate, a pressing mechanism and a second driving mechanism, wherein the pressing mechanism comprises a rotating shaft arranged on the first sliding seat and a pressing wheel arranged on the rotating shaft, the axis of the pressing wheel is staggered with the axis of the rotating shaft, and the second driving mechanism drives the rotating shaft to rotate; the driving unit drives the first sliding seat to slide along the first guide rail; and the execution end of the rubberizing unit can be moved to the winding needle. A square power battery core winding machine provided with a pole piece single-roll rubberizing device is provided. The pole piece single-roll rubberizing device and the square power battery core winding machine have the advantages of being large in winding length, convenient for entering the defective pole piece and capable of reliably pressing the defective pole piece on the winding needle in the winding and rubberizing process.
Description
Technical Field
The invention relates to the technical field of battery production equipment, in particular to a pole piece single-roll rubberizing device and a square power battery cell winding machine provided with the same.
Background
At present, the battery core winding of a battery is generally completed by a battery core winding machine, and the battery core winding machine stacks, winds and pastes a positive pole piece, a negative pole piece and a diaphragm according to a certain sequence to form a battery core. However, because the pole piece material rolls can inevitably have some defective pole pieces, in order to avoid rolling the defective pole pieces together with qualified pole pieces and good diaphragms in the production process, the battery cell winding machine is provided with a pole piece single-roll device to roll and reject the defective pole pieces independently, so that the defective pole pieces are prevented from participating in subsequent production, waste of the qualified pole pieces and the good diaphragms is avoided, meanwhile, the production cost is saved, and the production efficiency is improved.
However, the existing pole piece single-roll device has the following defects: the difficulty of pole piece entering is high; the winding length of the defective pole piece is extremely limited, and when the defective pole piece is too long, the winding needs to be performed for multiple times. For example, the chinese patent publication No. CN105537154B discloses a defective product pole piece single-winding mechanism, which is used for removing defective product pole pieces in pole piece material rolls to wind and recover the defective product pole pieces, but because in the defective product pole piece single-winding mechanism, a winding needle is sleeved in a winding needle cylinder, the winding needle cylinder is sleeved at the front end of a winding needle positioning cylinder, and the winding needle is positioned in the winding needle positioning cylinder, so that the winding needle cannot wind and recover the defective product pole pieces which are too long. In addition, in order to prevent defective product pole piece from scattering, set up pressure spring and pinch roller as hold-down mechanism in the needle positioning section of thick bamboo of rolling up compresses tightly the pole piece, prevents that the pole piece from scattering, but this hold-down mechanism's setting has limited the needle of rolling up and can be to the length of coiling of defective product pole piece, and this hold-down mechanism action reliability is relatively poor simultaneously, and the pressure spring inefficacy easily leads to hold-down mechanism can't maintain the compaction to defective product pole piece. In addition, in order to ensure that the winding needle positioning cylinder can freely extend out of and extend into the panel of the battery core winding machine, and avoid the winding needle positioning cylinder occupying too much space and collision between the winding needle positioning cylinder and other devices, the diameter of the winding needle positioning cylinder is not too large, but the winding length of the winding needle positioning cylinder for defective pole pieces is further limited. Furthermore, due to the inherent structural design of the winding needle positioning cylinder, the pole piece guide rod is required to be arranged on the winding needle positioning cylinder to guide the pole piece to the winding needle, and the pole piece guide rod is arranged to additionally increase the difficulty of inserting the pole piece.
Disclosure of Invention
In order to solve the problems, the invention mainly aims to provide the pole piece single-roll rubberizing device which has a large winding length and is convenient for the defective pole piece to enter the pole piece and reliably compress the defective pole piece on the winding needle in the process of winding and rubberizing.
The invention further aims to provide a square power cell winding machine provided with the pole piece single-roll rubberizing device.
In order to achieve the main purpose of the invention, the invention provides a pole piece single-roll rubberizing device, which comprises a mounting seat, a winding unit, a driving unit and a rubberizing unit, wherein a first guide rail is arranged on the mounting seat, the winding unit comprises a first sliding seat, a winding needle and a first driving mechanism, the first sliding seat is slidably arranged on the first guide rail, the winding needle is rotatably arranged on the first sliding seat, the winding needle is parallel to the first guide rail, the first driving mechanism drives the winding needle to rotate, the driving unit drives the first sliding seat to slide along the first guide rail, the executing end of the rubberizing unit can move to the winding needle, the winding needle is provided with two oppositely arranged needle bodies, a pole piece channel is formed between the two needle bodies, the winding unit further comprises a pressing mechanism and a second driving mechanism, the pressing mechanism comprises a rotating shaft and a pressing wheel, the rotating shaft is rotatably arranged on the first sliding seat, the pressing wheel is rotatably arranged on one end of the rotating shaft, which is close to the needle body, the axis of the pressing wheel and the axis of the rotating shaft are staggered, the pressing wheel and the rotating shaft are both parallel to the winding needle, and the second driving mechanism drives to rotate.
From the above, the structural design of the winding unit better releases the winding space of the winding needle, so that the winding needle can wind the defective pole piece with a large length, the problem that the defective pole piece with a large length needs to be wound in a divided manner in the prior art is solved, and the processing efficiency of the pole piece single-winding rubberizing device is greatly improved. Secondly, the structural design of the winding unit makes the entering of the defective product pole piece easier, and when entering the piece, the winding needle is driven to rotate only through the first driving mechanism, so that after the defective product pole piece channel is aligned with the defective product pole piece, the winding needle is driven by the driving unit to be inserted into the defective product pole piece. Moreover, the structural design of the compressing mechanism enables the compressing mechanism to reliably compress the defective pole piece in the winding process and the wound defective pole piece, and assists the winding to tail the defective pole piece, so that the wound defective pole piece is prevented from being scattered.
In a preferred scheme, the second driving mechanism comprises a first driving component and a connecting rod component, the first driving component is arranged on the first sliding seat, the connecting rod component is connected between the output end of the first driving component and the rotating shaft, and the first driving component drives the rotating shaft to rotate through the connecting rod component.
From the above, establish the linkage between first drive assembly and the pivot through link assembly, can improve the pivoted reliability of pivot, guarantee that the pinch roller can compress tightly the defective product pole piece on the needle better to make the clamping force of pinch roller adjustable. In addition, the connecting rod assembly is adopted as a linkage structure between the first driving assembly and the rotating shaft, so that the space occupied by the winding unit can be better saved, and the installation layout of the first driving assembly is optimized.
The connecting rod assembly comprises a first connecting rod and a second connecting rod, wherein the first end of the first connecting rod is fixedly connected with the rotating shaft, and the second end of the first connecting rod is hinged with the first end of the second connecting rod; the first driving assembly comprises a cylinder, a rod body of the cylinder is vertically arranged on a mounting surface of the first guide rail, the second end of the second connecting rod is hinged with the rod body of the cylinder, or the first driving assembly comprises a first motor and a first ball screw, a motor shaft of the first motor is vertically arranged on the mounting surface, a screw rod of the first ball screw is fixedly connected with the motor shaft, and a nut of the first ball screw is hinged with the second end of the second connecting rod.
From the above, the number of the connecting rod assemblies can be adjusted according to the position relation between the first driving assembly and the rotating shaft, the number of the winding needles to be adapted, and the like, and the driving source structure of the first driving assembly can be configured according to the processing conditions.
The other preferred scheme is, rubberizing unit includes the connecting seat, rubberizing mechanism and third actuating mechanism, be provided with the second guide rail on the connecting seat, the second guide rail extends the ground setting towards the book needle, rubberizing mechanism includes the second sliding seat, prepare the rubber tyer, link and second actuating assembly, the second sliding seat slidable installs on the second guide rail, prepare the rubber tyer rotatable install on the second sliding seat, prepare the rubber tyer and be on a parallel with the book needle, the link articulates on the second sliding seat, the axis of rotation of link is on a parallel with the axis of preparing the rubber tyer and staggers the setting with the axis of preparing the rubber tyer, be provided with clamp plate and cutter on the link, prepare the rubber tyer and be located between clamp plate and the cutter, second actuating assembly drive link rotates, third actuating mechanism drive second sliding seat slides along the second guide rail.
From the above, the third driving mechanism is used for controlling the rubberizing unit to move to the winding needle, and the rubberizing unit is used for clamping and cutting the adhesive tape and pasting the adhesive tape on the defective product battery cell wound by the winding needle. The structural design of the rubberizing unit enables the pressing plate to compress the adhesive tape on the adhesive tape preparing wheel when the second driving assembly drives the connecting frame to rotate along the first direction, so that the adhesive tape can be clamped and moved, and the pressing plate can release the compression of the adhesive tape and enable the cutter to cut off the adhesive tape when the second driving assembly drives the connecting frame to rotate along the second direction.
In another preferred embodiment, the winding unit further comprises a guide roller rotatably mounted on the first slide seat, the guide roller being parallel to the winding needle, the guide roller being located at an upstream end of the winding needle in a feeding direction of the winding unit.
From the above, the guide roller is used for guiding the defective pole piece, so that the winding needle can wind the defective pole piece better.
The pole piece single-roll rubberizing device comprises a pole piece single-roll rubberizing unit, and is characterized in that the pole piece single-roll rubberizing unit further comprises a blocking unit, the blocking unit comprises a baffle and a fourth driving mechanism, an avoidance groove is formed in the baffle, the baffle is located at the upstream end of the rubberizing unit along the extending direction of a winding needle, and the fourth driving mechanism can drive the baffle to move towards the winding needle, so that the winding needle is located in the avoidance groove.
From the above, dodging the groove on the baffle and being used for holding the needle for when the third actuating mechanism drive baffle moved to the needle that rolls up, roll the needle and can be located dodging the inslot, in order to when the needle resets is rolled up in the drive unit drive, the baffle can block the defective goods electric core of rolling up and making on the needle that rolls up, thereby peels off defective goods electric core from the needle that rolls up.
The pole piece single-roll rubberizing device comprises a pole piece single-roll rubberizing unit, and is characterized in that the pole piece single-roll rubberizing unit further comprises a recovery unit, the recovery unit comprises a receiving plate and a recovery box, the receiving plate is positioned below the winding needle and between the blocking unit and the rubberizing unit, the recovery box is positioned below the receiving plate, the recovery box is provided with a containing cavity, and the receiving plate obliquely extends to the containing cavity.
From the above, defective product battery cells are peeled off from the winding needle and then directly drop onto the material receiving plate, and the material receiving plate guides the dropped defective product battery cells, so that the recovery box recovers the dropped defective product battery cells.
Further scheme is, the receiving plate includes gentle portion and tilting portion, and gentle portion is located under the needle, and tilting portion extends to holding from gentle portion slope, and recovery unit still includes pushing equipment, and pushing equipment sets up in gentle portion department, and pushing equipment includes third drive assembly and push pedal, and third drive assembly drive push pedal moves towards or dorsad tilting portion.
From the above, through the structural design of butt joint flitch for the flitch can dodge the coiling head of electric core winder, optimize the structural layout of electric core winder, and make the linkage between each device of electric core winder compacter, reliable. Meanwhile, by arranging the pushing mechanism, the pushing mechanism can push the defective product battery cell which stays on the gentle part of the receiving plate to the inclined part, so that the defective product battery cell can move into the recovery box through the inclined part.
The number of the winding needles is two, the two winding needles are arranged on the first sliding seat in parallel, the number of the pressing mechanisms is two, one pressing mechanism is arranged corresponding to one winding needle, the number of the rubberizing units is two, and one rubberizing unit is arranged corresponding to one winding needle.
Therefore, the structural design enables the pole piece single-roll rubberizing device to remove defective product sections of the positive pole piece and the negative pole piece, and the application range of the pole piece single-roll rubberizing device is improved.
In order to achieve another purpose of the invention, the invention provides a square power battery cell winding machine, which comprises the pole piece single-roll rubberizing device.
From the above, the square power battery cell winding machine provided with the pole piece single-roll rubberizing device has large single winding quantity for the defective pole pieces, and ensures that the sheet feeding operation of the defective pole pieces is simpler and more reliable, and simultaneously can ensure that the defective pole pieces are reliably compressed in the process of being wound into defective battery cells, so that the defective pole pieces are not loose.
Drawings
Fig. 1 is a first structural view of a first embodiment of a pole piece single roll rubberizing device of the invention.
Fig. 2 is a block diagram of a pole piece single roll rubberizing device of a first embodiment of the invention with parts of components omitted.
Fig. 3 is a block diagram of a winding needle of a first embodiment of the pole piece single-winding rubberizing device of the invention.
Fig. 4 is a second structural view of the first embodiment of the pole piece single roll rubberizing device of the invention.
Fig. 5 is an enlarged view at C in fig. 4.
Fig. 6 is an enlarged view at B in fig. 2.
Fig. 7 is a block diagram of a rubberizing unit of a first embodiment of a pole piece single roll rubberizing device of the invention.
Fig. 8 is a block diagram of a first embodiment of a pole piece single roll rubberizing device of the invention.
Fig. 9 is an enlarged view at a in fig. 1.
Fig. 10 is a third structural view of the first embodiment of the pole piece single roll rubberizing device of the invention.
Fig. 11 is an enlarged view of D in fig. 10.
The invention is further described below with reference to the drawings and examples.
Detailed Description
First embodiment of pole piece single-roll rubberizing device:
The single-roll rubberizing device for the pole piece is mainly applied to a battery core winding machine to independently wind and rubberize defective pole pieces existing in pole piece material rolls, so that defective pole pieces in the pole piece material rolls are removed, the defective pole pieces are prevented from participating in winding of good battery cores, waste of qualified pole pieces and good diaphragms is avoided, production cost is saved, and production efficiency is improved.
Referring to fig. 1, a pole piece single-roll rubberizing device 100 comprises a mounting seat 1, a winding unit 2, a driving unit 3, a rubberizing unit 4, a blocking unit 5 and a recycling unit 6. The mounting seat 1 is arranged on a panel of the battery cell winding machine and is positioned on the inner side of the panel, namely, the mounting seat 1 and a pole piece inserting and cutting device of the battery cell winding machine are respectively positioned on two opposite sides of the panel. The mounting seat 1 is provided with a first guide rail 11, and the first guide rail 11 is arranged on a vertical panel.
Referring to fig. 2, the winding unit 2 includes a first slide seat 21, a winding needle 22, a first driving mechanism 23, a pressing mechanism 24, a second driving mechanism 25, and a guide roller. The first sliding seat 21 is slidably connected with the first guide rail 11 along the extending direction of the first guide rail 11, and the output end of the driving unit 3 is fixedly connected with the first sliding seat 21 and drives the first sliding seat 21 to slide along the first guide rail 11. Specifically, the driving unit 3 includes a second motor 31 and a second ball screw 32, and the second motor 31 preferably employs a servo second motor 31 to improve the adjustment accuracy of the driving unit 3. The second motor 31 is fixedly installed on the installation seat 1, the second motor 31 shaft of the second motor 31 is parallel to the first guide rail 11, the screw rod of the second ball screw 32 is coaxially arranged with the second motor 31 shaft of the second motor 31, the screw rod is fixedly connected with the second motor 31 shaft of the second motor 31, and the nut of the second ball screw 32 is fixedly connected with the first sliding seat 21, so that the second motor 31 can accurately control the first sliding seat 21 to slide through the second ball screw 32. By the structural design of the driving unit 3, the sliding of the first sliding seat 21 is more stable, the moving precision is higher and the vibration is small. Of course, as an alternative, the driving unit 3 may directly use an air cylinder, but driving the first sliding seat 21 by using an air cylinder may cause greater vibration during the movement of the first sliding seat 21 and difficult control of the movement accuracy.
The winding needle 22 is rotatably installed on the first sliding seat 21 around the axis of the winding needle 22, so that the winding needle 22 can move along with the first sliding seat 21, and the driving unit 3 can drive the winding needle 22 to move to the outside of the panel to wind the defective product pole piece through the first sliding seat 21, and can drive the winding needle 22 to move the defective product pole piece which is wound into the panel to be rubberized and recovered through the first sliding seat 21. The winding needle 22 is parallel to the first guide rail 11, and referring to fig. 3, the winding needle 22 has two oppositely disposed needle bodies 221, and a pole piece passage 222 is formed between the two needle bodies 221, and the pole piece passage 222 is used for accommodating and properly clamping the defective pole piece, so that when the winding needle 22 is driven, the winding needle 22 can wind the defective pole piece onto itself through a structure between the pole piece passage 222 and the needle bodies 221. In this embodiment, the number of winding needles 22 is two, two winding needles 22 are arranged on the first sliding seat 21 in parallel, and the two winding needles 22 are respectively used for winding the positive defective pole piece and the negative defective pole piece.
The first driving mechanism 23 is used for driving the winding needle 22 to rotate, wherein the first driving mechanism 23 comprises a third motor and a transmission assembly, the transmission assembly comprises a first belt wheel, a second belt wheel, a third belt wheel, a fourth belt wheel, a first transmission belt and a second transmission belt, the first belt wheel is fixedly sleeved on a motor shaft of the third motor, the second belt wheel and the third belt wheel are fixedly sleeved on the first winding needle 22, the fourth belt wheel is fixedly sleeved on the second winding needle 22, the first transmission belt is sleeved on the first belt wheel and the second belt wheel, and the second transmission belt is sleeved on the third belt wheel and the fourth belt wheel. Preferably, the third motor adopts a servo motor, the first belt pulley, the second belt pulley, the third belt pulley and the fourth belt pulley adopt synchronous belt pulleys, and the first driving belt and the second driving belt adopt synchronous belts.
Referring to fig. 4 and 5, the number of the pressing mechanisms 24 is two, one pressing mechanism 24 is disposed corresponding to one winding needle 22, and the pressing mechanism 24 is used for pressing the defective pole piece on the winding needle 22 so as to prevent the defective pole piece from loosening during winding and before rubberizing. The pressing mechanism 24 includes a rotating shaft 241 and a pressing wheel 242, the rotating shaft 241 is rotatably mounted on the first sliding seat 21 around its own axis, and the rotating shaft 241 is parallel to the winding needle 22. The rotating shaft 241 is provided with a support arm 2411 near one end of the needle body 221 of the winding needle 22, the support arm 2411 extends outwards towards the rotating shaft 241 along the radial direction of the rotating shaft 241, the pressing wheel 242 is rotatably mounted on the support arm 2411 around the axis of the pressing wheel 242, and the axis of the pressing wheel 242 is parallel to the axis of the winding needle 22, so that the axis of the pressing wheel 242 and the axis of the rotating shaft 241 are staggered to be arranged in an eccentric structure, and therefore, when the rotating shaft 241 rotates, the pressing wheel 242 can move towards or away from the needle body 221 of the winding needle 22 around the axis of the rotating shaft 241 so as to press or loosen a defective pole piece on the winding needle 22.
Referring to fig. 6, the second driving mechanism 25 includes a first driving assembly 251 and a link assembly 252, and the link assembly 252 is connected between an output end of the first driving assembly 251 and the rotation shaft 241 such that the second driving assembly 424 can drive the rotation shaft 241 to rotate through the link assembly 252. The number of the connecting rod assemblies 252 is two, the two groups of connecting rod assemblies 252 are connected with the first driving assembly 251, and one group of connecting rod assemblies 252 is arranged corresponding to one rotating shaft 241. Specifically, the first driving assembly 251 includes a cylinder 2511 and a connection block 2512, a rod body of the cylinder 2511 is vertically disposed at a mounting plane of the first rail 11, and the connection block 2512 is fixedly mounted on the rod body of the cylinder 2511. The link assembly 252 includes a first link 2521 and a second link 2522, wherein a first end of the first link 2521 is fixedly connected with the rotating shaft 241, two ends of the second link 2522 are respectively hinged with a second end of the first link 2521 and the connecting block 2512, and a non-zero included angle is formed between the first link 2521 and the second link 2522. The connecting rod assembly 252 is adopted to connect the first driving assembly 251 and the rotating shaft 241, so that the rotating reliability of the rotating shaft 241 can be improved, the pinch roller 242 can better compress defective product pole pieces on the winding needle 22, the compressing force of the pinch roller 242 can be adjusted, and meanwhile, the winding unit 2 can wind defective product pole pieces with large length by combining the structural design of the winding needle 22, as in the embodiment, the winding unit 2 can wind defective product pole pieces with the length of 12 meters. Furthermore, the link assembly 252 is adopted as a linkage structure between the first driving assembly 251 and the rotating shaft 241, so that the space occupied by the winding unit 2 can be better saved, and the installation layout of the first driving assembly 251 can be optimized.
The number of the guide rollers is two, and one guide roller is provided corresponding to one winding needle 22. The guide roller is rotatably installed on the first sliding seat 21 around the axis of the guide roller, the guide roller is parallel to the winding needle 22 and is positioned at the upstream end of the winding needle 22 along the feeding direction of the winding unit 2, and the guide roller is used for guiding the defective pole piece entering the winding needle 22, so that the defective pole piece can better enter the winding needle 22 and be wound by the winding needle 22. In addition, when the defective pole piece needs to be subjected to the piece feeding treatment, only the first driving mechanism 23 is required to drive the winding needle 22 to rotate, so that the opening of the pole piece channel 222 is aligned with the defective pole piece, and then the driving unit 3 is required to drive the winding needle 22 to move towards the defective pole piece, so that the defective pole piece is inserted into the pole piece channel 222. Therefore, through the structural design of the winding needle 22 unit, the feeding of defective pole pieces is simpler and more convenient, and the success rate of the feeding can reach 99.5%.
Referring to fig. 7, the rubberizing unit 4 and the winding unit 2 are located at the same side of the panel, and the rubberizing unit 4 is used for rubberizing the defective product battery cells wound by the winding needle 22 to prevent defective product pole pieces of the defective product battery cells from being scattered. The number of the rubberizing units 4 is two, and one rubberizing unit 4 is arranged corresponding to one winding needle 22. Specifically, the rubberizing unit 4 comprises a connection seat 41, a rubberizing mechanism 42 and a third driving mechanism 43. The connecting seat 41 is provided with a second guide rail 411 and a unreeling shaft 412, the second guide rail 411 is horizontally arranged, the second guide rail 411 is arranged towards a corresponding reel needle 22, the unreeling shaft 412 is parallel to the reel needle 22, and the unreeling shaft 412 is used for installing a tape material reel.
The rubberizing mechanism 42 comprises a second sliding seat 421, a rubberizing wheel 422, a connecting frame 423, a second driving component 424 and a guiding wheel group 425. The second sliding seat 421 is slidably connected to the second guide rail 411 along the extending direction of the second guide rail 411, and the glue preparing wheel 422 is rotatably mounted on the second sliding seat 421 around its own axis, and the axis of the glue preparing wheel 422 is parallel to the axis of the winding needle 22. The connecting frame 423 has a rotation shaft, and the connecting frame 423 is rotatably connected with the second sliding seat 421 through the rotation shaft, the rotation shaft is parallel to the winding needle 22, and the axis of the rotation shaft and the axis of the glue preparation wheel 422 are staggered, so that the rotation shaft and the glue preparation wheel 422 are eccentrically arranged. The connecting frame 423 is provided with a pressing plate 4231 and a cutter 4232, the cutting edge of the cutter 4232 is arranged towards the pressing plate 4231, and the glue preparation wheel 422 is positioned between the pressing plate 4231 and the cutter 4232. The second driving component 424 is an air cylinder, the cylinder body of the air cylinder is arranged on the second sliding seat 421, the rod body of the air cylinder is hinged with the connecting frame 423, the air cylinder is used for driving the connecting frame 423 to rotate around the rotating shaft, so that when the second driving component 424 drives the connecting frame 423 to rotate along the first direction, the pressure plate 4231 can compress the adhesive tape on the adhesive tape preparation wheel 422 to clamp and move the adhesive tape, and when the second driving component 424 drives the connecting frame 423 to rotate along the second direction, the pressure plate 4231 can release the compression of the adhesive tape and enable the cutter 4232 to cut off the adhesive tape. The guiding wheel group 425 includes a plurality of leading wheels, and a plurality of leading wheels are all installed on second sliding seat 421 around the axis of self rotationally, and guiding wheel group 425 is used for realizing the processing of opening the glue to the sticky tape material book, even the sticky tape can be by better the pulling open to avoid the sticky tape material to roll up unreeling in-process, the sticky tape is excessively elongated and takes place to warp, plays the guard action to the sticky tape.
The third driving mechanism 43 is an air cylinder, the cylinder body of the air cylinder is installed on the connecting seat 41, the rod body of the air cylinder is parallel to the second guide rail 411 and fixedly connected with the second sliding seat 421, the third driving mechanism 43 is used for driving the second sliding seat 421 to slide along the second guide rail 411, so that the rubberizing mechanism 42 moves the free end of the adhesive tape to the corresponding winding needle 22, the adhesive tape is adhered to the tail end of the defective product cell wound by the winding needle 22, and after the rubberizing mechanism 42 finishes rubberizing treatment of the defective product cell, the rubberizing mechanism 42 is controlled to reset. Wherein, as an alternative, the third driving mechanism 43 may drive the second sliding seat 421 by using a combination mechanism of a motor and a ball screw, and the combination mechanism of the motor and the ball screw may improve the movement precision of the second sliding seat 421, so that the rubberizing unit 4 may better rubberize the wound defective battery cells with different diameters.
Referring to fig. 8 and 9, the blocking unit 5 is disposed separately from the rubberizing unit 4, and the blocking unit 5 is located below the winding needle 22. The material blocking unit 5 comprises a baffle plate 51 and a fourth driving mechanism 52, the fourth driving mechanism 52 comprises a fixed seat 521, an air cylinder 522 and a third sliding seat 523, a third guide rail 5211 is arranged on the fixed seat 521, the third guide rail 5211 is vertical to the mounting surface of the first guide rail 11, the third sliding seat 523 is slidably connected with the third guide rail 5211 along the extending direction of the third guide rail 5211, the body of the air cylinder 522 is mounted on the fixed seat 521, and the rod body of the air cylinder 522 is parallel to the third guide rail 5211 and fixedly connected with the third sliding seat 523. The baffle plate 51 is mounted on the third sliding seat 523, an avoidance groove 511 is formed in the baffle plate 51, the avoidance groove 511 is used for accommodating the winding needle 22 to avoid the winding needle 22, and the baffle plate 51 is located at the upstream end of the rubberizing unit 4 along the extending direction of the winding needle 22. The fourth driving mechanism 52 is configured to drive the baffle 51 to move toward the winding needle 22, so that the winding needle 22 is located in the avoidance groove 511, and when the driving unit 3 drives the first sliding seat 21 to reset, one end of the defective product cell wound on the winding needle 22 can abut against the baffle 51, and the defective product cell is peeled from the winding needle 22 along with the reset of the first sliding seat 21. In addition, the structural design of the baffle plate 51 can also avoid the alignment degree of the defective product battery cells from changing in the process of stripping the defective product battery cells from the winding needle 22, avoid the defective product battery cells from loosening, and improve the stripping reliability of the defective product battery cells from the winding needle 22.
Referring to fig. 10 and 11, the recovery unit 6 includes a receiving plate 61, a recovery box 62, and a pushing mechanism 63, the receiving plate 61 is located below the winding needle 22, and the receiving plate 61 is located between the blocking unit 5 and the rubberizing unit 4. The receiving plate 61 includes a gentle portion 611 and an inclined portion 612, the recovery box 62 includes a box 621 and a cover 622, the box 621 has a housing chamber, the cover 622 is covered at a first opening of the housing chamber, and a second opening is provided at a side of the cover 622 facing the receiving plate 61. The gentle portion 611 is located between the material blocking unit 5 and the rubberizing unit 4, the inclined portion 612 obliquely extends from the gentle portion 611 to the accommodating cavity and stretches into the second opening, wherein the gentle portion 611 is preferably arranged in a horizontal state, and through the structural design of the material receiving plate 61, the material receiving plate 61 can avoid the winding head of the battery cell winding machine, the structural layout of the battery cell winding machine is optimized, linkage among devices of the battery cell winding machine is more compact and reliable, and the cover 622 is used for preventing defective battery cells from directly sliding out of the recovery box 62 from the inclined portion 612 of the material receiving plate 61. The pushing device 63 is arranged at the flat portion 611, the pushing device 63 comprises a third driving assembly 631 and a pushing plate 632, the third driving assembly 631 is an air cylinder, the cylinder body of the air cylinder is fixedly connected with the flat portion 611, the rod body of the air cylinder extends towards the inclined portion 612, the rod body of the air cylinder is connected with the pushing plate 632 so as to drive the pushing plate 632 to move towards or back to the inclined portion 612, the pushing device 63 can push defective product cells which are remained on the flat portion 611 of the material receiving plate 61 to the inclined portion 612, the defective product cells can be moved into the recovery box 62 through the inclined portion 612, and defective product cells are prevented from being accumulated in the flat portion 611.
The following describes the operation of the pole piece single roll rubberizing device 100:
when the front-stage device of the pole piece single-roll rubberizing device 100 detects that the unreeled pole piece has defective product sections, a corresponding detection signal is sent to the control system of the battery core winder, so that the control system marks the defective product section of the pole piece.
When the defective pole piece is transferred to the pole piece single-roll rubberizing device 100, the pole piece inserting and cutting device of the battery core winding machine inserts the defective pole piece to a designated position (shown in fig. 3) and keeps the defective pole piece in a straightened state. Then, the control system sends the control system to the pole piece single-roll rubberizing device 100, so that the first driving mechanism 23 drives the corresponding one of the winding needles 22 to rotate, and the pole piece channels 222 of the winding needles 22 are aligned with the defective pole pieces.
Then, the driving unit 3 drives the first sliding seat 21 to slide along the first guide rail 11 to move towards the panel, so that the winding needle 22 extends out of the panel and the defective pole piece is inserted into the pole piece channel 222 of the winding needle 22. When the driving unit 3 drives the first sliding seat 21 to move in place, the second driving mechanism 25 drives the rotating shaft 241 to rotate, so that the pinch roller 242 compresses the defective pole piece on the needle body 221 of the winding needle 22. Then, the first driving mechanism 23 drives the corresponding winding needle 22 to rotate again, so that the winding needle 22 winds the defective pole piece.
After the winding unit 2 completes the fixed-length winding of the defective product section of the pole piece, the pole piece is inserted into the cutting device to cut off the pole piece, so that the defective product pole piece is cut off from the pole piece material roll. The first driving mechanism 23 continues the winding needle 22 to terminate the cut defective pole piece. When finishing the ending of the defective product pole piece, the first driving mechanism 23 pauses the driving of the winding needle 22, and meanwhile, the driving unit 3 drives the first sliding seat 21 to retract for the first time, so that the winding needle 22 retreats into the panel, and the defective product battery cell wound by the winding needle 22 moves to the rubberizing unit 4.
Then, the third driving mechanism 43 of the rubberizing unit 4 corresponding to the winding needle 22 drives the second sliding seat 421 to move towards the winding needle 22, so that the adhesive tape on the adhesive preparation roller is adhered to the defective product cell, and then the first driving mechanism 23 drives the winding needle 22 to rotate again, so that the adhesive tape is wound on the defective product cell. When the winding of the fixed-length adhesive tape is completed, the first driving mechanism 23 stops driving the winding needle 22, the second driving assembly 424 drives the connecting frame 423 to rotate along the second direction, so that the cutter 4232 on the connecting frame 423 performs the winding of the adhesive tape, and then the second driving assembly 424 drives the connecting frame 423 to rotate along the first direction, so that the pressing plate 4231 presses the new free end of the adhesive tape on the adhesive preparation roller.
Then, the third driving mechanism 43 drives the second sliding seat 421 to reset, and at the same time, the second driving mechanism 25 drives the rotating shaft 241 to rotate reversely, so that the pinch roller 242 releases the compression of the defective battery cell. Subsequently, the fourth driving mechanism 52 of the blocking unit 5 drives the shutter 51 to move toward the winding needle 22, so that the winding needle 22 is positioned in the escape groove 511 of the shutter 51.
Then, the driving unit 3 drives the first sliding seat 21 to retract for the second time until the first sliding seat 21 returns to the initial position. In the process of retreating the first sliding seat 21, the defective product cell on the winding needle 22 gradually moves towards the baffle plate 51 until one end contacts with the baffle plate 51, and when the defective product cell contacts with the baffle plate 51, the baffle plate 51 blocks the defective product cell from continuing to move along with the winding needle 22 so as to strip the defective product cell from the winding needle 22.
When the defective product cell is peeled off from the winding needle 22 and falls onto the receiving plate 61 of the recovery unit 6, the pushing mechanism 63 of the recovery unit 6 pushes the defective product cell remaining on the flat portion 611 of the receiving plate 61 toward the inclined portion 612, so that the defective product cell passes through the inclined portion 612 and falls into the recovery box 62, and then the pushing mechanism 63 resets. And after the defective battery cell is peeled off from the winding needle 22 and falls down, the fourth driving mechanism 52 of the blocking unit 5 drives the baffle plate 51 to return to the initial position.
In the defective product pole piece winding process, the second driving mechanism 25 can drive the rotating shaft 241 to finely rotate so as to finely adjust the position of the pressing wheel 242, so that the position of the pressing wheel 242 can be changed according to the diameter of the wound defective product battery cell, and the winding needle 22 can smoothly wind the defective product pole piece.
Second embodiment of pole piece single-roll rubberizing device:
The difference between this embodiment and the first embodiment of the pole piece single-roll rubberizing device is that:
The first driving component of the second driving mechanism of the winding unit comprises a first motor and a first ball screw, a motor shaft of the first motor is vertically arranged on the mounting surface of the first guide rail, the screw of the first ball screw is fixedly connected with the motor shaft, a nut of the first ball screw is hinged with the second end of the second connecting rod, and the first driving component is arranged into a combined mechanism of the motor and the ball screw, so that the position of the pressing wheel can be better finely adjusted by the first driving component, the position of the pressing wheel can be better adjusted along with the increase of the diameter of the wound defective product battery cell, the reliability of winding the defective product pole piece by a winding is improved, the resistance of the winding needle in the winding process of the defective product pole piece is reduced, in addition, the integrity of the defective product pole piece can be ensured, the defective product pole piece is prevented from being damaged, and the wound defective product battery cell can be used by another.
Third embodiment of pole piece single-roll rubberizing device:
The difference between this embodiment and the first embodiment of the pole piece single-roll rubberizing device is that:
The second driving mechanism directly adopts a servo motor, and the servo motor is directly connected with the rotating shaft through a coupler so as to reduce transmission gaps and improve the reliability of the second driving mechanism on the driving of the rotating shaft. In this embodiment, the number of the second driving mechanisms is equal to the number of the winding needles, and one second driving mechanism drives a corresponding winding needle to rotate.
Square power cell winder embodiment:
The square power battery cell winding machine comprises the pole piece single-roll rubberizing device in any one of the first embodiment to the third embodiment, and the square power battery cell winding machine provided with the pole piece single-roll rubberizing device has large single winding quantity of the defective pole piece, so that the defective pole piece entering operation is simpler and more reliable, and meanwhile, the defective pole piece can be reliably compressed in the process of being wound into the defective battery cell, so that the defective pole piece is not loose.
Finally, it should be emphasized that the foregoing description is merely illustrative of the preferred embodiments of the invention, and that various changes and modifications can be made by those skilled in the art without departing from the spirit and principles of the invention, and any such modifications, equivalents, improvements, etc. are intended to be included within the scope of the invention.
Claims (7)
1. Pole piece single-roll rubberizing device includes:
The mounting seat is provided with a first guide rail;
The winding unit comprises a first sliding seat, a winding needle and a first driving mechanism, wherein the first sliding seat is slidably installed on the first guide rail, the winding needle is rotatably installed on the first sliding seat, the winding needle is parallel to the first guide rail, and the first driving mechanism drives the winding needle to rotate;
The driving unit drives the first sliding seat to slide along the first guide rail;
the execution end of the rubberizing unit can move to the winding needle;
The method is characterized in that:
The winding needle is provided with two oppositely arranged needle bodies, and a pole piece channel is formed between the two needle bodies;
The winding unit further comprises a pressing mechanism and a second driving mechanism, the pressing mechanism comprises a rotating shaft and a pressing wheel, the rotating shaft is rotatably arranged on the first sliding seat, the pressing wheel is rotatably arranged at one end, close to the needle body, of the rotating shaft, the axis of the pressing wheel is staggered with the axis of the rotating shaft, the pressing wheel and the rotating shaft are parallel to the winding needle, and the second driving mechanism drives the rotating shaft to rotate;
the second driving mechanism comprises a first driving component and a connecting rod component, the first driving component is mounted on the first sliding seat, the connecting rod component is connected between the output end of the first driving component and the rotating shaft, and the first driving component drives the rotating shaft to rotate through the connecting rod component;
The connecting rod assembly comprises a first connecting rod and a second connecting rod, the first end of the first connecting rod is fixedly connected with the rotating shaft, and the second end of the first connecting rod is hinged with the first end of the second connecting rod;
The first driving component comprises an air cylinder, a rod body of the air cylinder is vertical to the mounting surface of the first guide rail, and the second end of the second connecting rod is hinged with the rod body of the air cylinder, or
The first driving assembly comprises a first motor and a first ball screw, a motor shaft of the first motor is vertical to the mounting surface, the screw of the first ball screw is fixedly connected with the motor shaft, and a nut of the first ball screw is hinged with the second end of the second connecting rod;
The rubberizing unit comprises a connecting seat, a rubberizing mechanism and a third driving mechanism, wherein a second guide rail is arranged on the connecting seat, the second guide rail faces towards the winding needle and is arranged in an extending mode, the rubberizing mechanism comprises a second sliding seat, a rubberizing wheel, a connecting frame and a second driving assembly, the second sliding seat is slidably arranged on the second guide rail, the rubberizing wheel is rotatably arranged on the second sliding seat, the rubberizing wheel is parallel to the winding needle, the connecting frame is hinged to the second sliding seat, a rotating shaft of the connecting frame is parallel to an axis of the rubberizing wheel and is staggered with the axis of the rubberizing wheel, a pressing plate and a cutter are arranged on the connecting frame, the rubberizing wheel is positioned between the pressing plate and the cutter, the second driving assembly drives the connecting frame to rotate, and the third driving mechanism drives the second sliding seat to slide along the second guide rail.
2. The pole piece single roll rubberizing device of claim 1, wherein:
The winding unit further comprises a guide roller rotatably mounted on the first sliding seat, the guide roller is parallel to the winding needle, and is located at the upstream end of the winding needle along the feeding direction of the winding unit.
3. The pole piece single roll rubberizing device of claim 1, wherein:
the pole piece single-roll rubberizing device further comprises a blocking unit, wherein the blocking unit comprises:
The baffle is provided with an avoidance groove, and is positioned at the upstream end of the rubberizing unit along the extending direction of the winding needle;
and the fourth driving mechanism can drive the baffle to move towards the winding needle, so that the winding needle is positioned in the avoidance groove.
4. A pole piece single roll rubberizing device according to claim 3, wherein:
the pole piece single-roll rubberizing device further comprises a recovery unit, wherein the recovery unit comprises:
The material receiving plate is positioned below the winding needle and between the material blocking unit and the rubberizing unit;
the recycling bin is located below the receiving plate, the recycling bin is provided with a containing cavity, and the receiving plate obliquely extends to the containing cavity.
5. The pole piece single roll rubberizing device of claim 4, wherein:
the receiving plate comprises a gentle portion and an inclined portion, the gentle portion is located right below the winding needle, and the inclined portion obliquely extends from the gentle portion to the accommodating cavity;
The recycling unit further comprises a pushing mechanism, the pushing mechanism is arranged at the gentle portion and comprises a third driving assembly and a pushing plate, and the third driving assembly drives the pushing plate to move towards or back to the inclined portion.
6. A pole piece single roll rubberizing device according to any one of claims 1 to 5, wherein:
the number of the winding needles is two, and the two winding needles are arranged on the first sliding seat in parallel;
the number of the pressing mechanisms is two, and one pressing mechanism is arranged corresponding to one winding needle;
the number of the rubberizing units is two, and one rubberizing unit is arranged corresponding to one winding needle.
7. Square power cell winding machine, characterized by comprising a pole piece single roll rubberizing device according to any one of the preceding claims 1 to 6.
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| CN201911422579.XA CN111106377B (en) | 2019-12-30 | 2019-12-30 | Pole piece single-roll rubberizing device and square power battery core winding machine |
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| CN201911422579.XA CN111106377B (en) | 2019-12-30 | 2019-12-30 | Pole piece single-roll rubberizing device and square power battery core winding machine |
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| CN112053326B (en) * | 2020-08-13 | 2023-12-08 | 无锡先导智能装备股份有限公司 | Cell alignment detection method, system, device and equipment |
| CN116280393A (en) * | 2023-03-09 | 2023-06-23 | 海目星激光科技集团股份有限公司 | A rolling lagging device |
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| CN211045619U (en) * | 2019-12-30 | 2020-07-17 | 珠海华冠科技股份有限公司 | Pole piece single-roll rubberizing device and square power electric core winding machine |
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| CN105537154B (en) * | 2015-12-31 | 2018-01-05 | 珠海华冠科技股份有限公司 | Defective product pole piece monovolume mechanism |
| CN207967211U (en) * | 2017-12-28 | 2018-10-12 | 珠海华冠科技股份有限公司 | Defective product pole piece monovolume device and electricity core winding machine |
| WO2019213840A1 (en) * | 2018-05-08 | 2019-11-14 | 深圳市诚捷智能装备股份有限公司 | Automatic tab-welding device |
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