CN108615949B - Square battery core film-making winding equipment - Google Patents

Square battery core film-making winding equipment Download PDF

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Publication number
CN108615949B
CN108615949B CN201810576036.2A CN201810576036A CN108615949B CN 108615949 B CN108615949 B CN 108615949B CN 201810576036 A CN201810576036 A CN 201810576036A CN 108615949 B CN108615949 B CN 108615949B
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Prior art keywords
winding
needle
tab
square
assembly
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CN108615949A (en
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吴泽喜
戴月明
呙德红
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Shenzhen Chengjie Intelligent Equipment Co Ltd
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Shenzhen Chengjie Intelligent Equipment Co Ltd
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/05Accumulators with non-aqueous electrolyte
    • H01M10/058Construction or manufacture
    • H01M10/0587Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Secondary Cells (AREA)

Abstract

The invention discloses square battery core sheet-making winding equipment, which comprises two groups of diaphragm unreeling devices, two groups of sheet-making devices and a winding device, wherein the two groups of diaphragm unreeling devices are connected with the winding device; each flaking device comprises two groups of pole piece unreeling mechanisms, two groups of lug welding mechanisms and two groups of opposite sticking mechanisms, wherein the controller controls one pole piece unreeling mechanism, the lug welding mechanism and the opposite sticking mechanism to be combined on the pole piece for flaking of even machine lugs, and the controller controls the other combination to be combined on the pole piece for flaking of odd machine lugs; each tab welding mechanism is provided with a tab dust removing assembly and a tab detecting assembly; the winding device comprises at least one square winding needle assembly and a shaping mechanism, wherein the positive and negative pole piece material strips provided by the sheet making device and welded with the pole lugs and the two diaphragm material strips provided by the diaphragm unreeling device are clamped on the square winding needle assembly of the winding device, and the shaping mechanism stretches the square winding needle assembly to form a square battery cell. The invention can realize high-quality winding and rapid and efficient hot pressing of square batteries with different specifications.

Description

Square battery core film-making winding equipment
Technical Field
The invention relates to the technical field of auxiliary equipment for producing electric cores, in particular to square electric core sheet-making winding equipment.
Background
Square lithium batteries are widely used in various electrical equipment as a device for storing charges. With the popularization of square batteries and the recent rise of automobile power batteries, the contradiction between cruising ability and battery capacity is increasingly highlighted. Because square battery's structure is comparatively simple, and whole annex weight is light, and relative energy density is higher, and market demand is very big.
Along with the increasing market demand, the specifications of the square battery cells are more and more, and the models are more and more, so that the winding process of the square battery cells is more and more complex. In the existing square lithium battery cell production process, the structure of the cell winding head is generally fixed corresponding to different square cell specifications. Therefore, a square battery winding device can only wind the battery cells with one specification. Or a single square cell winding device is provided with a plurality of replaceable winding needle assemblies.
Therefore, the production efficiency of the winding equipment of the conventional square battery cell is low.
Meanwhile, because the square battery cell has specific shape, and the moment of the material conveying belt and rotation of the winding machine is unchanged, the two ends of the square battery cell are stressed greatly when being wound, and the flat parts are stressed less, so that the two ends are easy to generate extrusion deformation, and the winding quality of the battery cell is affected.
Therefore, the winding technology of the existing cell winding device is still to be improved and developed.
Disclosure of Invention
Aiming at the technical problems, the invention provides square battery core sheet-making winding equipment capable of fully automatically and efficiently making sheets, winding and forming, and winding square battery cores with different specifications and high quality.
In order to achieve the above purpose, the invention provides square battery core sheet-making winding equipment, which comprises a controller, two groups of diaphragm unreeling devices, two groups of sheet-making devices and a winding device, wherein the two groups of diaphragm unreeling devices, the two groups of sheet-making devices and the winding device are electrically connected with the controller;
each flaking device comprises two groups of pole piece unreeling mechanisms, two groups of pole lug welding mechanisms and two groups of opposite sticking mechanisms, wherein the controller controls one pole piece unreeling mechanism, the pole lug welding mechanism and the opposite sticking mechanisms to be combined on the pole piece for flaking even pole lugs, and the controller controls the other pole piece unreeling mechanism, the pole lug welding mechanism and the opposite sticking mechanisms to be combined on the pole piece for flaking odd pole lugs; each tab welding mechanism is provided with a tab dust removing assembly and a tab detecting assembly;
the winding device comprises at least one square winding needle component and a shaping mechanism, wherein positive and negative pole piece material belts welded with pole lugs and provided by the two sets of sheet making devices and two diaphragm material belts provided by the diaphragm unreeling device are clamped on the square winding needle component of the winding device, and the shaping mechanism stretches the square winding needle component to wind and form a square battery cell;
The winding device also comprises a case, a needle outlet mechanism, a needle drawing mechanism and a locking mechanism, wherein the square winding needle component is pushed out by the needle outlet mechanism and locked on the locking mechanism, the shaping mechanism stretches the square winding needle component to wind and shape a square battery cell, the square winding needle component comprises a bearing rotatably arranged on the case, an inner needle component arranged on the bearing, a battery cell specification component and a shaping component,
the inner needle assembly comprises a first winding needle and a second winding needle, and a winding gap is formed between the first winding needle and the second winding needle; the battery cell specification assembly comprises a winding needle sleeve sleeved outside the first winding needle and the second winding needle and a winding needle specification piece; the shaping assembly comprises a cam piece and a spreading mechanism, wherein the cam piece is rotatably arranged between the needle winding sleeve and the needle winding specification piece, and the spreading mechanism is used for rotating the cam piece;
when in winding, the square winding needle component is pushed out by the needle outlet mechanism to enable the material belt to enter the winding gap, the first winding needle and the second winding needle are locked on the locking mechanism, and meanwhile, the expanding mechanism rotates the cam piece to expand the winding needle specification piece to perform cell winding;
when the winding of the battery core is completed, the locking mechanism is unlocked, the expanding mechanism enables the cam piece to rotate to fold the winding needle specification piece, and then the square winding needle component is drawn back by the needle drawing mechanism;
The battery cell specification assembly comprises a pair of winding needle specification pieces which are respectively arranged at two sides of the winding needle sleeve; the shaping assembly comprises two cam pieces which are rotatably arranged between the needle winding sleeve and the pair of needle winding standard pieces, one side of each cam piece is rotatably connected to the needle winding sleeve through a rivet, the other side of each cam piece is rotatably connected to the adjacent needle winding standard piece through a rivet, the opening mechanism comprises an alignment cylinder, a shifting block and an opening cylinder, an inner shaft which is connected with the needle winding sleeve is arranged in the bearing, an alignment shaft matched with the shifting block is arranged at one end of the inner shaft, the shifting block is driven by the alignment cylinder to clamp the alignment shaft during winding, and the inner shaft is driven by the opening cylinder to stretch in the bearing so that the two cam pieces connected to the needle winding sleeve rotate.
The square battery core sheet-making winding equipment also comprises a hot-pressing mechanism and a discharging mechanism, wherein the discharging mechanism sends the square battery core to the hot-pressing mechanism for hot pressing, the hot-pressing mechanism comprises a fixed seat, a hot-pressing driving mechanism and a hot-pressing head, a movable panel is arranged below the fixed seat, the movable panel comprises a first working position, a second working position and a third working position, and the movable panel is lifted to the hot-pressing position through a lifting cylinder; the hot pressing head is positioned above the second working position, and a short circuit detection mechanism is arranged below the second working position and comprises a short circuit detection cylinder and a detector.
The hot pressing mechanism further comprises a battery core transfer mechanism and a station transfer mechanism, wherein the battery core transfer mechanism comprises a discharging plate for placing square battery cores, a gas claw mechanism, a leveling cylinder and a hot pressing claw mechanism, and the gas claw mechanism is used for transferring the battery cores at a first working position and a second working position and comprises a moving cylinder, a gas claw opening and closing cylinder and a gas claw; the hot pressing paw mechanism comprises a first stirring piece and a second stirring piece, wherein the first stirring piece is used for moving the square battery core at the first working position to the second working position, the second stirring piece is used for moving the square battery core at the second working position after hot pressing to the third working position, and the third working position is connected with the conveying belt.
Preferably, the hot pressing paw mechanism is provided with an adjusting mechanism, and the adjusting mechanism comprises an adjusting cylinder and a limiting block.
Preferably, each tab welding mechanism comprises a welding mechanism fixing seat, a welding component mounting plate, a tab unreeling component, a tab limiting component, a tab pressing and conveying component, a tab cutting component and a tab welding component, wherein the tab dust removing component is arranged on the tab unreeling component and comprises a dust removing brush supported on a rotating shaft, and the tab detecting component is a post-process of the dust removing component.
The tab unreeling assembly comprises a tab unreeling disc, a protective film reel, a film reeling tension assembly, a tab tension assembly and a correction wheel assembly; the protective film reel is used for winding the protective film on the tab; the correction wheel assembly is provided with a positioning groove for positioning the lug, and the correction wheel assembly is driven by a motor to be reversed with the advancing direction of the lug for tensioning the lug; the lug limiting assembly comprises a lug limiting frame, and a lug correcting assembly is arranged on one side of the lug limiting frame.
The lug pressing and conveying assembly comprises a first lug paw, a first lug paw moving block, a moving cylinder for moving the first lug paw moving block, a second lug paw moving block, a third lug paw and a third lug paw upward moving cylinder; the first lug paw moving block and the second lug paw moving block are arranged on the sliding rail, the first lug paw is used for conveying the lug into the lug cutting assembly, the second lug paw is used for taking away the cut lug, and the third lug paw is used for conveying the cut lug into the lug welding assembly.
Preferably, the discharging mechanism is used for transferring the square battery core detached from the discharging station to the discharging plate and comprises a rotating motor, a material taking arm connected with the rotating motor, a material taking hand and a telescopic cylinder.
The square battery cell flaking and winding equipment has the advantages that when flaking is performed, a full-automatic lug welding mechanism is adopted, so that flaking efficiency is higher;
when in winding, the first winding needle and the second winding needle are sleeved with detachable and replaceable winding needle specification pieces which correspond to different square battery cores, so that winding of different square battery cores can be realized only by replacing the portable winding needle specification pieces. Meanwhile, the square battery cell sheet-making winding equipment of the embodiment is provided with the shaping assembly between the winding needle specification piece and the winding inner needle, namely the first winding needle and the second winding needle, so that the square battery cell is not bothered by stress problems caused by the shape of the product in the winding process, each winding surface of the square battery cell is uniformly tensioned and wound, and the winding quality of the battery cell is improved.
During forming, the square battery cell is automatically taken away from the unloading station of the winding device by the unloading mechanism, and the square battery cell is quickly and efficiently transferred to the lower part of the hot pressing head through the battery cell transfer mechanism and the station transfer mechanism to be formed.
Drawings
In order to more clearly illustrate the embodiments of the present 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, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of a square battery core sheet-making and winding device of the invention;
fig. 2 is a schematic diagram of a front view structure of a tab welding mechanism of the square battery core sheet winding device of the invention;
FIG. 3 is a schematic perspective view of a tab welding mechanism of the square battery core sheet winding device of the invention;
FIG. 4 is a schematic diagram of another perspective structure of a tab welding mechanism of the square battery core sheet winding apparatus of the present invention;
FIG. 5 is a schematic structural view of a winding device of the square battery core sheet winding device of the invention;
FIG. 6 is a schematic view of another view of the winding device of the square battery core sheet winding apparatus of the present invention;
FIG. 7 is an exploded perspective view of a square winding needle assembly of the square battery core sheet winding apparatus of the present invention;
fig. 8 is a schematic perspective view of a spreader mechanism of the square battery core sheet-making and winding apparatus of the present invention;
fig. 9 is a first view of the locking mechanism of the square cell sheet winding apparatus of the present invention;
FIG. 10 is a second view angle schematic diagram of the locking mechanism of the square cell sheet winding apparatus of the present invention;
FIG. 11 is a schematic view of a cleaning mechanism of the square battery core sheet-making and winding device of the invention;
fig. 12 is a schematic diagram of a cell transfer mechanism and a hot press mechanism of the square cell sheet-making and winding device of the present invention;
FIG. 13 is a schematic diagram of the air jaw mechanism of the square battery core sheet-making and winding device of the invention;
fig. 14 is a schematic structural diagram of a discharging mechanism of the square battery core sheet-making winding device of the invention;
fig. 15 is a schematic structural view of a hot pressing mechanism of the square battery core sheet-making winding device of the invention.
Reference numerals illustrate:
1. case (S)
2. A winding device;
21. a triangular winding head; 211. a square winding needle assembly; 212. a needle pulling lug;
2111. a first winding needle; 2112. a second winding needle; 2113. a first winding needle sleeve; 2114. a second winding needle sleeve; 2115. a first reel needle specification; 2116. a second reel needle gauge; 2117. a bearing;
22. a needle discharging mechanism; 221. a needle outlet mechanism mounting seat; 222. a needle-out driving device; 223. a first crank block mechanism; 2231. a needle outlet bottom plate; 2232. a first drive turning rod; 2233. a first driven connecting rod; 2234. a first slider; 224. a first setting needle driving device; 225. the first needle shifting block fixing seat; 226. a first setting block;
23. a needle extraction mechanism; 231. a needle extraction mechanism mounting seat; 232. a needle extraction driving device; 233. a second crank block mechanism; 2331. a needle drawing bottom plate; 2333. a second driven connecting rod; 2334. a second slider; 234. a second setting needle driving device; 235. the second needle shifting block fixing seat; 236. a second needle shifting block;
24. A locking mechanism;
241. a cam mounting shaft; 2411. a needle opening cam; 24111. a needle opening flange; 2412. an unlocking cam; 24121. unlocking the flange;
242. an outer roof base; 243. a connecting piece; 244. a thimble assembly; 2441. a thimble assembly mounting seat; 2442. an outer top lock; 24421. a flange; 2443. a radial ejector block; 2444. an outer needle wheel; 2445. an outer lock sleeve; 24451. a groove; 2446. a guide post; 2447. a tension spring;
25. a shaping mechanism; 251. a spreading mechanism; 257. a fixing plate 4; 253. an alignment cylinder; 252. a shifting block; 254. opening the cylinder;
26. a cam; 261. a first cam; 262. a second cam;
3. a tabletting device; 31. a pole piece unreeling mechanism;
32. automatic tape splicing mechanism
33. A tab welding mechanism;
331. a welding mechanism fixing seat; 332. welding a component mounting plate; 333. the tab unreeling component; 3331. a pole lug reel is put on; 3332. a protective film reel; 3333. a film-collecting tension component; 3334. a tab tension assembly; 3335. a corrective wheel assembly; 3336. a motor; 334. a machine ear dust removing component; 3341. a dust removing brush; 3342. a tab detection assembly; 335. a tab limit assembly; 3351. a tab limit frame; 336. a pole lug deviation rectifying component; 337. a tab pinch assembly; 3371. a first tab finger; 3372. a moving cylinder; 3373. a first tab claw moving block; 3374. a second lug paw; 3375. a second lug paw moving block; 3376. a third ear finger; 3377. a third lug paw moves up the cylinder; 338. a tab cutting assembly; 339. a tab welding assembly; 3391. a welding head; 3392. a stripping cylinder;
4. A diaphragm unreeling device;
5. a feeding mechanism;
6. a discharging mechanism; 61. a material taking arm; 62. a material taking hand; 63. a telescopic cylinder;
7. a hot pressing mechanism; 711. a moving cylinder; 712. a discharging plate; 721. a gas claw; 722. an air claw opening and closing cylinder; 731. lifting the air cylinder; 741. a hot pressing paw mechanism; 7411. the first toggle piece; 7412. the second toggle piece; 742. lifting the cylinder;
750. a hot-pressing driving mechanism; 751. a fixing frame;
760. a hot press head;
771. a limiting block; 772. adjusting a cylinder; 781. a short circuit detection cylinder;
8. a conveyor belt;
9. a cleaning mechanism; 90. a mounting base; 92. a brush; 94. and (5) a vacuum tube.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present invention, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
As shown in fig. 1 to 15, the square battery core sheet-making winding device of the present invention comprises a chassis 1, a controller installed in the chassis 1, two sets of diaphragm unreeling devices 4 electrically connected with the controller, two sets of sheet-making devices 3, a winding device 2 and a hot pressing mechanism 7.
Each sheet-making device 3 includes two sets of pole piece unreeling mechanisms 31, two sets of tab welding mechanisms 33 and two sets of opposite pasting mechanisms 34, the controller controls one pole piece unreeling mechanism, tab welding mechanism and sheet-making of even number machine ears on the pole piece for the pasting mechanism combination, the controller controls the other pole piece unreeling mechanism, tab welding mechanism and sheet-making of odd number machine ears on the pole piece for the pasting mechanism combination, for example, the pole piece unreeling mechanism 31, tab welding mechanism 33 and opposite pasting mechanism 34. Each tab welding mechanism is provided with a tab dust removal assembly 334 and a tab detection assembly 3342.
As shown in fig. 5 and 6, the winding device 2 includes at least one square winding needle assembly 211, a needle-out mechanism 22, a needle-drawing mechanism 23, a locking mechanism 24 and a shaping mechanism 25, wherein the square winding needle assembly 211 includes a bearing 2117 rotatably mounted on the case 1, an inner needle assembly mounted on the bearing 2117, a cell specification assembly and a shaping assembly.
The positive and negative electrode plate material belts provided by the two sets of sheet making devices 3 and the two diaphragm material belts provided by the diaphragm unreeling device 4 are clamped on the square winding needle assembly 211 of the reeling device 2, the square winding needle assembly 211 is pushed out by the needle discharging mechanism 22 to be locked on the locking mechanism 24, the shaping mechanism 25 stretches the square winding needle assembly 211 to wind and form a square battery cell, and the discharging mechanism 6 sends the square battery cell to the hot pressing mechanism 7 to be hot pressed.
Referring to fig. 2 to 4, each tab welding mechanism includes a welding mechanism fixing seat 331, a welding assembly mounting plate 332, a tab unreeling assembly 333, a tab limiting assembly 335, a tab pressing assembly 337, a tab cutting assembly 338, and a tab welding assembly 339. The tab dust removing assembly is disposed on the tab unreeling assembly 333, and includes a dust removing brush supported on a rotating shaft, and the tab detecting assembly 3342 is a post process of the dust removing assembly. The welding mechanism fixing base 331 and the welding assembly mounting plate 332 are used for fixing the welding mechanism on the chassis 1.
The tab unwinding assembly 333 includes a tab unwinding reel 3331, a protective film reel 3332, a film winding tension assembly 3333, a tab tension assembly 3334, and a correction wheel assembly 3335. The protective film reel 3332 is used for winding the protective film on the tab; the correcting wheel assembly 3335 is provided with a positioning groove for positioning the lug, and the correcting wheel assembly 3335 is driven by a motor to reverse the advancing direction of the lug for tensioning the lug; the tab limiting assembly 335 includes a tab limiting frame 3351, and a tab deviation rectifying assembly 336 is disposed on one side of the tab limiting frame 3351.
The tab pressing and feeding assembly 337 includes a first tab claw 3371, a first tab claw moving block 3373, a moving cylinder 3372 for moving the first tab claw moving block 3373, a second tab claw 3374, a second tab claw moving block 3375, a third tab claw 3376, and a third tab claw up-moving cylinder 3377. The first tab moving block 3373 and the second tab moving block 3375 are mounted on a slide rail, the first tab 3371 is used for feeding the tab into the tab cutting assembly 338, the second tab 3374 is used for taking off the cut tab, and the third tab 3377 is used for feeding the cut tab into the tab welding assembly 339.
During tab welding during the tab manufacturing process, the tab extends from tab unwind reel 3331, which unwinds the tab, through protective film reel 3332, film take-up tension assembly 3333, tab tension assembly 3334, and leveling wheel assembly 3335 in that order. The protective film reel 3332 is used for winding a layer of protective film on the tab. The correction wheel assembly 3335 is provided with a positioning groove for positioning the tab, and meanwhile, the correction wheel assembly 3335 is driven by the motor 3336 to rotate reversely with the advancing direction of the tab, so that the tab can be tensioned.
A dust removal assembly 334 is disposed rearward of the corrective wheel assembly 3335. The dust removal assembly 334 includes a dust removal brush 3341 for removing dust from the tab. The tab detection assembly 3342 detects whether the tape spacing on the tab is desirable by detecting whether the short circuit is detected by a probe. The tab stop assembly 335 is used to limit the left and right and up and down positions of the tab. The tab deviation correcting assembly 336 is used for correcting the deviation of the positive tab. When cutting the tab, the tab is gripped by the first tab claw 3371 and fed into the tab cutting assembly 338 by moving the air cylinder 3372 and the first tab claw moving block 3373. After the tab cutting assembly 338 is cut, the cut small tab is grasped by the second tab finger 3374 to move forward a small distance away from the tab cutting assembly 338, for example, by a motor and ball screw driving the second tab finger's moving block 3375. Then, the third tab claw 3376 clamps the cut small tab and sends it to the welding head 3391 for welding, after ultrasonic welding, the stripping cylinder 3392 acts to separate the pole piece from the welding base, so that the welded pole piece continues to move forward to the next winding process.
As shown in fig. 5, the winding device 4 includes a winding station, a rubberizing station and a discharging station, and the pole piece material belt provided by the sheet-making device 3 and the diaphragm material belt provided by the diaphragm unreeling device 4 sequentially pass through the winding station, the rubberizing station and the discharging station to complete the winding process.
The discharging mechanism 6 is used for transferring the square battery cells discharged from the discharging station to the hot pressing mechanism 7.
The inner needle assembly includes a first needle 2111 and a second needle 2112 secured to the first needle 2111. A winding gap is formed between the first winding needle 2111 and the second winding needle 2112. One end of the first winding needle 2111 is provided with a fixing part, and the other end forms a first locking needle end. One end of the second winding needle 2112 is provided with a fixing piece, and the other end forms a second locking needle end. The fixing portion is mounted on the fixing piece 21121 so that the first winding needle 2111 and the second winding needle 2112 will be connected while a winding gap is formed between the first winding needle 2111 and the second winding needle 2112.
As shown in fig. 7, the cell gauge assembly includes a needle sheath and a needle gauge that are sleeved outside the first and second needles 2111 and 2112. The needle roller includes a first needle roller 2113 and a second needle roller 2114. The first needle wrap 2113 encloses the first needle wrap 2111 and the second needle wrap 2114 encloses the second needle wrap 2112. The first and second winding needle sleeves 2113, 2114 cooperate with a sizing mechanism to hold the cell specification assembly open.
The cell specification assembly includes a pair of pin specifications, namely a first pin specification 2115 and a second pin specification 2116. The first needle gauge 2115 is secured to the bearing 2117 and surrounds the first needle 2111. Meanwhile, the first needle gauge 2115 and the second needle gauge 2116 are located on both sides of the set being rolled. The second needle gauge 2116 is secured to the bearing 2117 and surrounds the second needle 2112. The first winding pin gauge 2115 moves with the first winding pin 2111 to extend out of the wound cell and to withdraw from the wound cell. The second winding pin 2116 moves with the second winding pin 2112 to extend out of the wound cell and to withdraw from the wound cell.
Upon installation, the first needle gauge 2115 surrounds the first needle cannula 2113 from the outside, thereby forming a first working chamber between the first needle gauge 2115 and the first needle cannula 2113. The second needle gauge 2116 externally surrounds the second needle cannula 2114, thereby forming a second working chamber between the second needle gauge 2116 and the first needle cannula 2114.
One side of each cam piece is connected to the needle winding sleeve through rivet rotation, and the other side is connected to the adjacent needle winding specification piece through rivet rotation. The shaping assembly includes two cam members, namely, the first cam member 321 and the second cam member 322, rotatably disposed between the needle hub and the pair of needle gauges. The first cam member 321 is rotatably connected to the first winding needle sleeve 2113 through one edge of the rivet according to the standard of the square battery, and the other edge of the rivet is rotatably connected to the first winding needle standard member 2115, so that the distance from the outer side of the first cam member 321 to the center of the winding needle assembly is half of the size of the square battery after the first cam member 321 rotates. The second cam member 322 is rotatably connected to the second winding needle sleeve 2114 by one edge of the rivet and the other edge is rotatably connected to the second winding needle gauge member 2116 according to the square battery specification, such that the distance from the outside of the second cam 322 to the center of the winding needle assembly after the rotation of the second cam 322 is half the square battery cell size.
The setting assembly also includes a spreader mechanism 251 that rotates the cam member.
As shown in fig. 8, the expanding mechanism 251 includes an aligning cylinder 253, a shifting block 252, and an expanding cylinder 254 through a fixing plate 257. An inner shaft (not shown) connected to the needle hub is provided in the bearing 2117, and an alignment shaft 341 for engaging the dial 252 is provided at an end of the inner shaft remote from the needle hub. When winding, the alignment cylinder 253 drives the shifting block 252 to clamp the alignment shaft 341, and the expanding cylinder 254 drives the inner shaft to expand and contract in the bearing 2117 so as to rotate the two cam members, i.e., the first cam member 321 and the second cam member 322, connected to the winding needle sheath.
During winding, the square winding needle assembly 211 is pushed out by the needle-out mechanism to enable the material belt to enter the winding gap, the first winding needle 2111 and the second winding needle 2112 are locked on the locking mechanism, and meanwhile, the opening mechanism 251 rotates the cam piece to open the winding needle specification piece for cell winding.
When the winding of the battery core is completed, the locking mechanism is unlocked, the opening mechanism 251 makes the cam member rotate to fold the winding needle specification member, and then the square winding needle assembly 211 is drawn back by the needle drawing mechanism.
As shown in fig. 5 to 6, the winding device 2 includes a triangular winding head 21, a needle-out mechanism 22, a needle-drawing mechanism 23 and a locking mechanism 24, wherein the triangular winding head 21 includes a winding bracket and three groups of square winding needle assemblies 211 arranged on the winding bracket, the winding bracket is provided with a winding station, a rubberizing station and a discharging station, the three groups of square winding needle assemblies 211 can rotate along with the winding bracket to be respectively switched among the winding station, the rubberizing station and the discharging station, the needle-out mechanism 22 is arranged at the periphery of the winding station and is used for extending the square winding needle assemblies 211 of the winding station, the needle-drawing mechanism 23 is arranged at the periphery of the discharging station and is used for retracting the square winding needle assemblies 211 of the discharging station, and the locking mechanism 24 is arranged on the case 1 and is used for enabling the square winding needle assemblies 211 on the winding station to clamp a material belt and enabling the square winding needle assemblies 211 on the discharging station to release the material belt; the pre-winding deviation correcting mechanism 3 is used for correcting the deviation of the pole piece at the winding station; the ending guide mechanism 4 and the termination rubberizing mechanism 5 are arranged on the periphery of the rubberizing station, the ending guide mechanism 4 is used for guiding a material belt on the rubberizing station, and the termination rubberizing mechanism 5 is used for rubberizing a battery cell which is wound on the rubberizing station.
In one embodiment, as shown in fig. 5 and 6, three sets of square winding needle assemblies 211 are mounted on the winding head and are respectively provided with a needle pulling projection 212; the needle outlet mechanism 22 of the winding device in this embodiment includes a needle outlet mechanism mounting seat 221, a needle outlet driving device 222, a first crank block mechanism 223, a first needle setting driving device 224, a first needle setting block fixing seat 225 and a first needle setting block 226, the needle outlet mechanism mounting seat 221 is fixed on the chassis 1, the needle outlet driving device 222 is fixed on the needle outlet mechanism mounting seat 221, an output end of the needle outlet driving device 222 is fixedly connected with an input end of the first crank block mechanism 223, the first needle setting block fixing seat 225 is fixedly connected with an output end of the first crank block mechanism 223, the first needle setting driving device 224 is fixedly connected on the first needle setting block fixing seat 225, a piston rod of the first needle setting driving device 224 is fixedly connected with the first needle setting block 226, the first needle setting block 226 is slidably connected with the first needle setting block fixing seat 225, and the first needle setting driving device 224 can drive the first needle setting block 226 to be clamped with the needle setting projection 212 of the winding station.
The needle drawing mechanism 23 comprises a needle drawing mechanism mounting seat 231, a needle drawing driving device 232, a second crank block mechanism 233, a second needle drawing driving device 234, a second needle drawing block fixing seat 235 and a second needle drawing block 236, wherein the needle drawing mechanism mounting seat 231 is fixed on the chassis 1, the needle drawing driving device 232 is fixed on the needle drawing mechanism mounting seat 231, the output end of the needle drawing driving device 232 is fixedly connected with the input end of the second crank block mechanism 233, the second needle drawing block fixing seat 235 is fixedly connected with the output end of the second crank block mechanism 233, the second needle drawing driving device 234 is fixedly connected on the second needle drawing block fixing seat 235, a piston rod of the second needle drawing driving device 234 is fixedly connected with the second needle drawing block 236, the second needle drawing block 236 is slidably connected with the second needle drawing block fixing seat 235, and the second needle drawing driving device 234 can drive the second needle drawing block 236 to be clamped with the needle drawing projection 212 of the unloading station.
In the present embodiment, the needle output driving device 222 and the needle drawing driving device 232 are motors, and the first needle setting driving device 224 and the second needle setting driving device 234 are cylinders. Specifically, after the first needle pulling block 226 is clamped with the needle pulling protrusion 212 of the winding station, the needle discharging driving device 222 drives the square winding needle assembly 211 to extend out through the first crank slider mechanism 223 so as to wind the battery cell. After the second needle pulling block 236 is clamped with the needle pulling projection 212 of the unloading station, the needle pulling driving device 232 drives the square winding needle assembly 211 to retract through the second crank block mechanism 233 so as to separate the wound battery cell from the square winding needle assembly 211. It will be appreciated that the direction of movement of the ejector drive 222 is opposite to the direction of movement of the ejector drive 232.
In an embodiment, as shown in fig. 5 and 6, the first crank-slider mechanism 223 includes a needle-out bottom plate 2231, a first driving rotating rod 2232, a first driven connecting rod 2233 and a first slider 2234, the needle-out bottom plate 2231 is fixed on the needle-out mechanism mounting seat 221, an input end of the first driving rotating rod 2232 is fixedly connected with an output end of the needle-out driving device 222, an output end of the first driving rotating rod 2232 is rotatably connected with an input end of the first driven connecting rod 2233, an output end of the first driven connecting rod 2233 is rotatably connected with the first slider 2234, and the first slider 2234 is slidably connected with the needle-out bottom plate 2231; the second crank slider mechanism 233 includes a needle drawing bottom plate 2331, a second driving rotating rod, a second driven connecting rod 2333 and a second slider 2334, the needle drawing bottom plate 2331 is fixed on the needle drawing mechanism mounting seat 231, the input end of the second driving rotating rod is fixedly connected with the output end of the needle drawing driving device 232, the output end of the second driving rotating rod is rotationally connected with the input end of the second driven connecting rod 2333, the output end of the second driven connecting rod 2333 is rotationally connected with the second slider 2334, and the second slider 2334 is in sliding connection with the needle drawing bottom plate 2331.
By adopting the crank block mechanism, the axial dimensions of the needle drawing mechanism 22 and the needle drawing mechanism 23 in the square winding needle assembly 211 are smaller, the whole arrangement of the winding machine is facilitated, and the size of the whole winding machine can be reduced.
In one embodiment, as shown in fig. 9 and 10, the locking mechanism 24 includes a cam mounting shaft 241, an outer top base 242, and three sets of thimble assemblies 244 disposed on the outer top base 242, where the cam mounting shaft 241 is fixed on the chassis 1 by a connecting member 243, and the outer top base 242 is rotatably connected with the cam mounting shaft 241.
The outer top base 242 is provided with a locking station, a holding station and an unlocking station which respectively correspond to the winding station, the rubberizing station and the discharging station of the triangular winding head 21, the three groups of thimble assemblies 244 can rotate along with the outer top base 242 to respectively switch among the locking station, the holding station and the unlocking station, the cam mounting shaft 241 is fixedly provided with an opening cam 2411 and an unlocking cam 2412, the opening cam 2411 comprises an opening flange 24111 extending along the radial direction of the cam mounting shaft 241, and the unlocking cam 2412 comprises an unlocking flange 24121 extending along the axial direction of the cam mounting shaft 241.
The thimble assembly 244 comprises a thimble assembly mounting seat 2441, an outer thimble 2442, a radial thimble 2443, an outer thimble wheel 2444 and an outer thimble 2445, wherein the thimble assembly mounting seat 2441 is fixed on the outer thimble base 242, a guide post 2446 is arranged on the thimble assembly mounting seat 2441 in a sliding way, one end of the guide post 2446 is fixedly connected with the radial thimble 2443, the other end of the guide post 2446 is fixedly connected with the outer thimble 2442, the outer thimble 2442 is connected with the thimble assembly mounting seat 2441 through a tension spring 2447, the outer thimble wheel 2444 is rotationally connected with the outer thimble 2445, a flange 24421 is arranged on the outer thimble 2442, a groove 24451 is arranged on the outer thimble 2445, and a thimble driving device is fixed on the connecting piece 243 corresponding to a locking station and used for driving the outer thimble 2445 and the outer thimble wheel 2444 on the locking station to be close to the triangular winding head 21.
Each outer thimble wheel 2444 includes a locking pin station 24441 where the first locking pin end of the first winding pin 2111 and the second locking pin end of the second winding pin 2112 extend under the influence of the ejection mechanism 22 and allow the web to enter the winding gap, and then the first locking pin end and the second locking pin end extend into the corresponding locking pin station 24441, thereby locking the square winding pin assembly 211 to the locking mechanism 24.
At the discharge station, the unlocking flange 24121 of the unlocking cam 2412 rotates to the highest position, and the unlocking flange 24121 drives the outer thimble wheel 2444 away from the square winding needle assembly 211 of the discharge station through the outer lock sleeve 2445. At the same time, the opening flange 24111 of the opening cam 2411 drives the flange 24421 away from the recess 24451 via the radial abutments 2443 to release the outer lock 2442 from the outer lock sleeve 2445, thereby retracting the square tuck needle assembly 211 from the needle extraction mechanism 23.
To sum up, when the needle-out mechanism 22 drives the bearing to push forward the square needle-rolling assembly 211, the inner needle assembly is clamped at the needle locking station 24441 of the outer thimble wheel 2444 and locked, and simultaneously the opening cylinder pulls the inner shaft of the bearing 2117 to rotate the first cam member 321 and the second cam member 322, so that the first needle-rolling specification member 2115 and the second needle-rolling specification member 2116 outwards open the square needle-rolling assembly 211. When the needle drawing mechanism 23 drives the bearing to pull the square winding needle assembly 211 backwards, the inner needle assembly is unlocked and pushed out by the locking mechanism 24, and when the square winding needle assembly 211 is retracted, the opening cylinder props against the inner shaft of the bearing 2117 to enable the first cam member 321 and the second cam member 322 to reversely rotate, so that the first winding needle specification member 2115 and the second winding needle specification member 2116 are folded inwards, and the wound square battery cell is conveniently dismounted.
Specifically, when the square winding needle assembly 211 on the winding station is extended, the ejector pin driving device drives the outer lock sleeve 2445 to press the flange 24421 on the outer top lock 2442, so that the outer lock sleeve 2445 moves towards the outer periphery of the outer top base 242. When the outer lock sleeve 2445 is moved to a position where its recess 24451 is flush with the flange 24421 on the outer lock 2442, the outer thimble wheel 2444 is sleeved over the square winding needle assembly 211 of the winding station and the thimble drive is reset. Simultaneously, through the reset action of the tension spring 2447, the flange 24421 is inserted into the groove 24451, so that the thimble wheel is always in contact with the square rolling needle assembly 211 after the thimble driving device is reset. It will be appreciated that as the winding support rotates the cells to the taping station, the outer thimble wheel 2444 remains in contact with the square winding needle assembly 211 to cause the square winding needle assembly 211 to grip the tape.
When the needle assembly 244 is rotated to the unlocking position, the needle-opening flange 24111 drives the flange 24421 away from the recess 24451 by the radial ejector block 2443 to contact the outer lock 2442 to circumscribe the outer lock sleeve 2445. Simultaneously, the unlocking flange 24121 drives the outer thimble wheel 2444 away from the square winding needle assembly 211 of the unloading station through the outer lock sleeve 2445, so that the square winding needle assembly 211 is opened, and then the needle withdrawing mechanism 23 withdraws the square winding needle assembly 211 from the battery cell on the unloading station.
As shown in fig. 11, the square battery core sheet winding device further comprises a pole piece cleaning device. The pole piece cleaning device includes a mounting 90, a brush 92 for cleaning the pole piece, and a vacuum tube 94 for sucking away dust.
As shown in fig. 15, the thermo-compression mechanism 7 includes a fixing base 751, a thermo-compression driving mechanism 750, and a thermo-compression head 760. A moving panel 745 is arranged below the fixing seat 751, the moving panel 745 comprises a first working position, a second working position and a third working position, and the moving panel 745 is lifted to a hot pressing position by a lifting cylinder 731; the hot press head 760 is located above the second operating position.
A short circuit detection mechanism is provided below the second operating position, and includes a short circuit detection cylinder 781 and a detector.
As shown in fig. 12, the hot press mechanism 7 further includes a cell transfer mechanism and a station transfer mechanism. The battery cell transfer mechanism comprises a discharging plate 712 for placing square battery cells, a pneumatic claw mechanism, a leveling cylinder 731 and a hot pressing claw mechanism.
Referring to fig. 13, the air jaw mechanism is used for transferring the battery cell between a first working position and a second working position, and includes a moving cylinder 711, an air jaw opening and closing cylinder 722, and an air jaw 721 sent by the clamping and unloading mechanism 6. The hot press gripper mechanism comprises a first toggle piece 7411 and a second toggle piece 7412. The first toggle member 7411 is configured to move the square battery cell in the first operating position to the second operating position. The second toggle member 7412 is used for moving the square battery cell at the second working position to a third working position after hot pressing, and the third working position is connected with the conveyer belt 8.
As shown in fig. 14, the winding device 2 is connected to the discharging mechanism. The discharging mechanism 6 is used for transferring square battery cells discharged from the discharging station to the discharging plate 712. The discharging mechanism is used for transferring the square battery core detached from the discharging station to the discharging plate 712, and comprises a rotating motor, a material taking arm 61 connected with the rotating motor, a material taking hand 62 and a telescopic cylinder 63.
As shown in fig. 13, the hot press gripper mechanism is provided with an adjusting mechanism including an adjusting cylinder 772 and a stopper 771.
The square battery cell flaking and winding equipment has the advantages that when flaking is performed, a full-automatic lug welding mechanism is adopted, so that flaking efficiency is higher; during winding, the first winding needle 2111 and the second winding needle 2112 are sleeved with detachable and replaceable winding needle specifications corresponding to different square battery cells, so that winding of different square battery cells can be realized only by replacing the portable winding needle specifications. Meanwhile, the square battery cell sheet-making winding equipment of the embodiment is provided with the shaping assembly between the winding needle specification piece and the winding inner needle, namely the first winding needle 2111 and the second winding needle 2112, so that the square battery cell is not bothered by stress problems caused by the shape of the product in the winding process, each winding surface of the square battery cell is uniformly tensioned and wound, and the winding quality of the battery cell is improved. During forming, the square battery cell is automatically taken away from the unloading station of the winding device 2 by the unloading mechanism, and the square battery cell is quickly and efficiently transferred to the lower part of the hot pressing head through the battery cell transfer mechanism and the station transfer mechanism to be formed.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all changes in the equivalent structures described in the specification and drawings of the present invention or the direct/indirect application in other related technical fields are included in the scope of the invention.

Claims (8)

1. The square battery core film-making winding equipment is characterized by comprising a controller, two groups of diaphragm unreeling devices, two groups of film-making devices and a winding device, wherein the two groups of diaphragm unreeling devices, the two groups of film-making devices and the winding device are electrically connected with the controller;
each flaking device comprises two groups of pole piece unreeling mechanisms, two groups of pole lug welding mechanisms and two groups of opposite sticking mechanisms, wherein the controller controls one pole piece unreeling mechanism, the pole lug welding mechanism and the opposite sticking mechanism to be combined on the pole piece for flaking even pole lugs, and the controller controls the other pole piece unreeling mechanism, the pole lug welding mechanism and the opposite sticking mechanism to be combined on the pole piece for flaking odd pole lugs;
each tab welding mechanism is provided with a tab dust removing assembly and a tab detecting assembly;
the winding device comprises at least one square winding needle assembly and a shaping mechanism, positive and negative pole piece material belts welded with pole lugs and provided by the two sets of sheet making devices and two diaphragm material belts provided by the diaphragm unreeling device are clamped on the square winding needle assembly of the winding device, and the shaping mechanism stretches the square winding needle assembly to wind and shape a square battery cell;
The winding device also comprises a case, a needle outlet mechanism, a needle drawing mechanism and a locking mechanism, wherein the square winding needle component is pushed out by the needle outlet mechanism and locked on the locking mechanism, the shaping mechanism props up the square winding needle component to wind and shape a square battery cell, the square winding needle component comprises a bearing rotatably arranged on the case, an inner needle component arranged on the bearing, a battery cell specification component and a shaping component,
the inner needle assembly comprises a first winding needle and a second winding needle, and a winding gap is formed between the first winding needle and the second winding needle; the battery cell specification assembly comprises a winding needle sleeve sleeved outside the first winding needle and the second winding needle and a winding needle specification piece; the shaping assembly comprises a cam piece and a spreading mechanism, the cam piece is rotatably arranged between the needle winding sleeve and the needle winding specification piece, and the spreading mechanism rotates the cam piece;
when in winding, the square winding needle assembly is pushed out by the needle outlet mechanism to enable the material belt to enter the winding gap, the first winding needle and the second winding needle are locked on the locking mechanism, and meanwhile, the expanding mechanism rotates the cam piece to expand the winding needle specification piece to perform cell winding;
When the winding of the battery core is completed, the locking mechanism is unlocked, the opening mechanism enables the cam piece to rotate to fold the winding needle specification piece, and then the square winding needle assembly is drawn back by the needle drawing mechanism;
the battery cell specification assembly comprises a pair of winding needle specification pieces which are respectively arranged at two sides of the winding needle sleeve; the shaping assembly comprises two cam pieces rotatably arranged between the needle winding sleeve and the pair of needle winding specification pieces, one side of each cam piece is rotatably connected to the needle winding sleeve through a rivet, and the other side of each cam piece is rotatably connected to the adjacent needle winding specification piece through a rivet; the stretching mechanism comprises an aligning cylinder, a shifting block and a stretching cylinder, an inner shaft connected with the needle winding sleeve is arranged in the bearing, one end of the inner shaft is provided with an aligning shaft matched with the shifting block, the shifting block is driven by the aligning cylinder to clamp the aligning shaft during winding, and the stretching cylinder is driven by the inner shaft to stretch in the bearing so that the two cam pieces connected to the needle winding sleeve rotate.
2. The square battery cell sheet-making winding equipment of claim 1, further comprising a hot-pressing mechanism and a discharging mechanism, wherein the discharging mechanism sends the square battery cell to the hot-pressing mechanism for hot-pressing, the hot-pressing mechanism comprises a fixed seat, a hot-pressing driving mechanism and a hot-pressing head, a movable panel is arranged below the fixed seat, the movable panel comprises a first working position, a second working position and a third working position, and the movable panel is lifted to the hot-pressing position through a lifting cylinder; the hot pressing head is located above the second working position, a short circuit detection mechanism is arranged below the second working position, and the short circuit detection mechanism comprises a short circuit detection cylinder and a detector.
3. The square battery cell sheet-making winding device of claim 2, wherein the hot-pressing mechanism further comprises a battery cell transfer mechanism and a station transfer mechanism, the battery cell transfer mechanism comprises a discharging plate for placing square battery cells, a gas claw mechanism, a leveling cylinder and a hot-pressing claw mechanism, and the gas claw mechanism is used for transferring the battery cells in a first working position and a second working position and comprises a moving cylinder, a gas claw opening and closing cylinder and a gas claw; the hot pressing paw mechanism comprises a first stirring piece and a second stirring piece, the first stirring piece is used for moving the square electric core at the first working position to the second working position, the second stirring piece is used for moving the square electric core at the second working position after hot pressing to the third working position, and the third working position is connected with the conveying belt.
4. The square battery cell sheet-making winding device according to claim 3, wherein the hot-pressing paw mechanism is provided with an adjusting mechanism, and the adjusting mechanism comprises an adjusting cylinder and a limiting block.
5. The square battery cell sheet-making and winding device of claim 1, wherein each tab welding mechanism comprises a welding mechanism fixing seat, a welding component mounting plate, a tab unreeling component, a tab limiting component, a tab pressing and conveying component, a tab cutting component and a tab welding component, the tab dust removing component is arranged on the tab unreeling component and comprises a dust removing brush supported on a rotating shaft, and the tab detecting component is a post-process of the dust removing component.
6. The square battery cell sheet winding apparatus of claim 5, wherein the tab unwinding assembly comprises a tab unwinding reel, a protective film reel, a film winding tension assembly, a tab tension assembly, and a correction wheel assembly; the protective film reel is used for winding the protective film on the tab; the correction wheel assembly is provided with a positioning groove for positioning the lug, and the correction wheel assembly is driven by the motor to be reversed with the advancing direction of the lug for tensioning the lug; the electrode lug limiting assembly comprises an electrode lug limiting frame, and one side of the electrode lug limiting frame is provided with an electrode lug deviation correcting assembly.
7. The square battery cell sheet-making winding apparatus of claim 6, wherein the tab feeding assembly comprises a first tab finger, a first tab finger moving block, a moving cylinder for moving the first tab finger moving block, a second tab finger moving block, a third tab finger, and a third tab finger up-moving cylinder; the first lug paw moving block and the lug paw moving block are arranged on the sliding rail, the first lug paw is used for conveying lugs into the lug cutting assembly, the second lug paw is used for taking away cut lugs, and the third lug paw is used for conveying cut lugs into the lug welding assembly.
8. A square cell sheet winding apparatus as defined in claim 3 wherein, the unloading mechanism is used for transferring the square cell unloaded at the unloading station to the unloading plate, and comprises a rotating motor, a material taking arm connected with the rotating motor, a material taking hand and a telescopic cylinder.
CN201810576036.2A 2018-06-06 2018-06-06 Square battery core film-making winding equipment Active CN108615949B (en)

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