CN110197885A - A kind of lithium battery diaphragm cutter device - Google Patents

A kind of lithium battery diaphragm cutter device Download PDF

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Publication number
CN110197885A
CN110197885A CN201910531759.5A CN201910531759A CN110197885A CN 110197885 A CN110197885 A CN 110197885A CN 201910531759 A CN201910531759 A CN 201910531759A CN 110197885 A CN110197885 A CN 110197885A
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CN
China
Prior art keywords
diaphragm
pressure roller
driving device
driving
top plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201910531759.5A
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Chinese (zh)
Other versions
CN110197885B (en
Inventor
吴玄皓
李红星
彭兴
童斌
张刚强
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Changde Tobacco Machinery Co Ltd
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Changde Tobacco Machinery Co Ltd
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Publication date
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Priority to CN201910531759.5A priority Critical patent/CN110197885B/en
Publication of CN110197885A publication Critical patent/CN110197885A/en
Application granted granted Critical
Publication of CN110197885B publication Critical patent/CN110197885B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/04Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member
    • B26D1/06Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates
    • B26D1/065Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates for thin material, e.g. for sheets, strips or the like
    • 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
    • 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
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/403Manufacturing processes of separators, membranes or diaphragms
    • 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)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Secondary Cells (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Primary Cells (AREA)

Abstract

The invention discloses a kind of lithium battery diaphragm cutter devices, it include: three station winding heads, first driving device, upper diaphragm pressure roller, second driving device, cutter, third driving device, lower diaphragm plate pressure roller, three station winding heads include three pieces of volume needles that diaphragm top plate apex is separately positioned in the diaphragm top plate of equilateral triangle arrangement and three, one of diaphragm top plate face upper diaphragm pressure roller, cutter and lower diaphragm plate pressure roller, first driving device is for driving upper diaphragm pressure roller mobile towards diaphragm top plate, third driving device is for driving lower diaphragm plate pressure roller mobile towards diaphragm top plate, diaphragm to be pressed on diaphragm top board surface, second driving device is for driving cutter mobile towards diaphragm top plate, to cut off the diaphragm being pressed on diaphragm top plate, by upper, the clamping of lower diaphragm plate pressure roller can successfully cut diaphragm.

Description

A kind of lithium battery diaphragm cutter device
Technical field
The present invention relates to lithium battery core coil equipment technical field, in particular to a kind of lithium battery diaphragm cutter device.
Background technique
Cylindrical lithium battery high speed film-making winding integrated equipment is the equipment for carrying out film-making and winding to battery core.Battery core one Shared cathode, diaphragm, anode, four layer material of diaphragm, which are superimposed, completes winding.
Existing lithium battery core coil equipment use three station winding heads, have three groups of volume needles and three groups of diaphragm top plates at 120 ° uniformly distributed, and winding head is counterclockwise rotating circulating is to electric core winding.Battery core turns after station 1 is completed to wind and cut off positive/negative plate To station 2, since diaphragm is not cut off, diaphragm can be pulled out by battery core and is fitted on diaphragm top plate, and due to using outside cathode It undertakes to perform work within a time limit and according to specifications skill, diaphragm cutter device needs to have larger distance from winding head, diaphragm and is pasted with facilitating to blow off cathode pole piece endpiece It closes on cathode supporting plate, while corresponding cathode enters piece supporting plate and cathode ending blowning installation is also required to draw at a distance from winding head Greatly.
Therefore, how a kind of device that can smoothly cut lithium battery diaphragm is provided, is that those skilled in the art need at present Technical problems to be solved.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of lithium battery diaphragm cutter device, it can be suitable after electric core winding Benefit cuts off diaphragm.
To achieve the above object, the invention provides the following technical scheme:
A kind of lithium battery diaphragm cutter device, comprising: three station winding heads, first driving device, upper diaphragm pressure roller, second Driving device, cutter, third driving device, lower diaphragm plate pressure roller, the three stations winding head include three pieces and arrange in equilateral triangle Diaphragm top plate and three volume needles for being separately positioned on the diaphragm top plate apex, one of diaphragm top plate face The upper diaphragm pressure roller, the cutter and the lower diaphragm plate pressure roller, the first driving device is for driving the upper diaphragm pressure Roller is mobile towards the diaphragm top plate, and the third driving device is for driving the lower diaphragm plate pressure roller towards the diaphragm top plate It is mobile, diaphragm is pressed on the diaphragm top board surface, second driving device is for driving the cutter towards institute State the diaphragm that diaphragm top plate is mobile, is pressed on the diaphragm top plate with cutting.
It preferably, further include that the cathode being fixedly connected with the telescopic end of the first driving device enters piece supporting plate, it is described negative Pole enters piece supporting plate equipped with venthole.
It preferably, further include cathode cauda supporting plate and cathode ending blowning installation, the cathode ending blowning installation is fixed In the telescopic end of the third driving device, the cathode ending blowning installation is used to for the cauda of negative electrode tab being fitted in described negative On the cauda supporting plate of pole.
It preferably, further include sliding rail and carrier block, the carrier block is slidably connected on the sliding rail, on the carrier block Interspersed to slidably connect guide rod, the upper diaphragm pressure roller is fixed on one end of the guide rod, the other end of the guide rod Equipped with limited block, be arranged with spring on the guide rod, one end of the spring and the carrier block push against, the other end with it is described It is pushed against on guide rod close to one end of the upper diaphragm pressure roller, the first driving device is for driving the carrier block described It is moved on sliding rail.
Preferably, the fixing end of second driving device is fixed on the carrier block.
Preferably, the fixing end of the third driving device is fixed on the carrier block.
Preferably, the upper diaphragm pressure roller is slidably connected by the more guide rods with the carrier block.
Compared with prior art, above-mentioned technical proposal has the advantage that
A kind of lithium battery diaphragm cutter device provided by the present invention, can be successfully by the clamping of upper and lower diaphragm pressure roller Diaphragm is cut;When first driving device driving carrier block is mobile, the second driving device and third driving device also can Movement is followed, the speed of service of mechanism can be improved, while diaphragm cutter device and three station winding head distances being widened, is guaranteed negative Pole piece cauda can smoothly fit on negative electrode tab supporting plate, and guarantee that negative electrode tab cauda is not damaged, and then improve electricity The yields of core;Furthermore it is integrated in first driving device by the way that negative electrode tab is entered piece supporting plate, eliminates negative electrode tab and enter piece supporting plate Driving mechanism also eliminate independent driving cathode by the way that cathode ending blowning installation to be integrated in third driving device and receive The driving mechanism of make-up gas device, simplifies structure.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis The attached drawing of offer obtains other attached drawings.
Fig. 1 shows for a kind of plan structure of lithium battery diaphragm cutter device provided by a kind of specific embodiment of the present invention It is intended to;
Fig. 2 shows for a kind of left view structure of lithium battery diaphragm cutter device provided by a kind of specific embodiment of the present invention It is intended to;
Fig. 3 is the Z-Z schematic cross-sectional view in Fig. 2;
Fig. 4 is a kind of lower diaphragm plate pressure roller of lithium battery diaphragm cutter device provided by a kind of specific embodiment of the present invention Structural schematic diagram when stretching;
Fig. 5 is a kind of upper diaphragm pressure roller of lithium battery diaphragm cutter device provided by a kind of specific embodiment of the present invention Structural schematic diagram when stretching;
When Fig. 6 stretches out for a kind of cutter of lithium battery diaphragm cutter device provided by a kind of specific embodiment of the present invention Structural schematic diagram;
Fig. 7 is a kind of lower diaphragm plate pressure roller of lithium battery diaphragm cutter device provided by a kind of specific embodiment of the present invention Structural schematic diagram when retraction.
Appended drawing reference is as follows:
1 is first driving device, and 2 be limited block, and 3 be the second driving device, and 4 be guide rod, and 5 be spring, and 6 be cutter, 7 Enter piece supporting plate for cathode, 8 be upper diaphragm pressure roller, and 9 be lower diaphragm plate pressure roller, and 10 be cathode ending blowning installation, and 11 drive for third Device, 12 be sliding block, and 13 be carrier block, and 14 be sliding rail, and 15 be negative electrode tab, and 16 be the first diaphragm, and 17 be positive plate, and 18 be second Diaphragm, 19 be first volume needle, and 20 roll up needle for third, and 21 be battery core, and 22 be volume Two needle, and 23 be diaphragm top plate, and 24 be cathode tail Piece supporting plate.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
FIG. 1 to FIG. 7 is please referred to, Fig. 1 is a kind of lithium battery diaphragm cutting provided by a kind of specific embodiment of the present invention The overlooking structure diagram of device;Fig. 2 is a kind of lithium battery diaphragm cutting dress provided by a kind of specific embodiment of the present invention The left view structural representation set;Fig. 3 is the Z-Z schematic cross-sectional view in Fig. 2;Fig. 4 is a kind of specific embodiment of the present invention Structural schematic diagram when a kind of lower diaphragm plate pressure roller of provided lithium battery diaphragm cutter device stretches out;Fig. 5 is that the present invention is a kind of Structural schematic diagram when a kind of upper diaphragm pressure roller of lithium battery diaphragm cutter device provided by specific embodiment stretches out;Fig. 6 Structural representation when being stretched out for a kind of cutter of lithium battery diaphragm cutter device provided by a kind of specific embodiment of the present invention Figure;Fig. 7 is a kind of lower diaphragm plate pressure roller retraction of lithium battery diaphragm cutter device provided by a kind of specific embodiment of the present invention When structural schematic diagram.
A kind of lithium battery diaphragm cutter device provided by the embodiment of the present invention, comprising: three station winding heads, the first driving Device 1, upper diaphragm pressure roller 8, the second driving device 3, cutter 6, third driving device 11, lower diaphragm plate pressure roller 9.Wherein three stations are rolled up It include the volume that three pieces of diaphragm top plates 23 arranged in equilateral triangle and three are separately positioned on 23 apex of diaphragm top plate around head Needle, volume needle are counterclockwise successively denoted as first volume needle 19, volume Two needle 22 and third volume needle from the top of three station winding heads 20, station is counterclockwise successively denoted as station one, station two and station three from the top of three station winding heads, it is one of every 23 face upper diaphragm pressure roller 8 of film top plate, cutter 6 and lower diaphragm plate pressure roller 9, i.e. diaphragm top plate 23 between station one and station two, The cylinder of first driving device 1, the second driving device 3 and third driving device 11 preferably exportable straight-line displacement.Specifically answering Used time, battery core 21 is after station one completes winding, and positive plate 17 and negative electrode tab 15 are cut off, and three station winding heads rotate counterclockwise 120 ° make battery core 21 reach station two;Then the telescopic end of third driving device 11 stretches out, and lower diaphragm plate pressure roller 9 is released, until The bottom of diaphragm is pressed on diaphragm top plate 23 by lower diaphragm plate pressure roller 9;The telescopic end of subsequent first driving device 1 stretches out, will be upper Diaphragm pressure roller 8 is released, until the top of diaphragm is pressed on diaphragm top plate 23 by upper diaphragm pressure roller 8;Then pass through the second driving Device 3 drives cutter 6 mobile towards the diaphragm being pressed on diaphragm top plate 23, drives cutter 6 to retract after cutting off diaphragm;Finally Lower diaphragm plate pressure roller 9 is retracted again, and the battery core 21 at station two starts finish up the first diaphragm 16 for connecting battery core 21, the second diaphragm 18 It is involved in battery core 21 with negative electrode tab 15, the first volume needle 19 at station one completes pre-roll and cut the first diaphragm 16 and the second diaphragm 18 Disconnected top bundling enters in first volume needle 19, and upper diaphragm pressure roller 8 is finally retracted initial position, completes diaphragm cutting operation.Its In three station winding heads by station one complete winding battery core 21 turn to station two when, by upper diaphragm pressure roller 8, under every The clamping of membrane pressure roller 9 can successfully cut diaphragm.
It further, further include that the cathode being fixedly connected with the telescopic end of first driving device 1 enters piece supporting plate 7, cathode enters Piece supporting plate 7 is equipped with venthole, which can be that next battery core 21 is wound station at the beginning by feeder blow gas When, battery core 21 is inserted into negative electrode tab 15 and plays the role of auxiliary support.Wherein the first driving is integrated in by the way that negative electrode tab 15 is entered piece supporting plate On device 1, the driving mechanism that negative electrode tab 15 enters piece supporting plate is eliminated, winding-structure is simplified.
It further, further include cathode cauda supporting plate 24 and cathode ending blowning installation 10, wherein cathode ending is blown The preferred inflatable bar of device 10, cathode ending blowning installation 10 are fixed on the telescopic end of third driving device 11, and cathode ending is blown Device 10 is used to the cauda of negative electrode tab 15 being fitted in cathode cauda supporting plate 24, i.e., lower diaphragm plate pressure roller 9 is being pressed on diaphragm When on top plate 23, cathode ending air-out apparatus 10 is also pushed out, and is blown, and guarantees the cauda fitting of 21 negative electrode tab 15 of battery core On cathode cauda supporting plate 24, when preventing cutter 6 from cutting diaphragm, negative electrode tab 15 is hurt, after diaphragm is cut off, retracts lower diaphragm plate pressure Roller 9 and cathode finish up blowning installation 10, and the battery core 21 at station two starts the first diaphragm 16, second for connecting battery core 21 that finishes up Diaphragm 18 and negative electrode tab 15 are involved in battery core 21.Wherein by the way that cathode ending blowning installation 10 is integrated in third driving device 11 On, independent driving mechanism is also eliminated, winding-structure is further simplified.
It further include sliding in the present embodiment for the ease of the movement of upper diaphragm pressure roller 8 and lower diaphragm plate pressure roller 9 and cutter 6 Rail 14 and carrier block 13, carrier block 13 are slidably connected on sliding rail 14, can be specifically slidably connected by sliding block 12 and sliding rail 14, Carrier block 13 is fixedly connected with sliding block 12, is interted on carrier block 13 and is slidably connected guide rod 4, wherein in order to improve carrier block 13 The stationarity of sliding, settable more guide rods 4 are slidably connected with carrier block 13, and upper diaphragm pressure roller 8 is fixed on the one of guide rod 4 End, the other end of guide rod 4 are equipped with limited block 2, and spring 5 is arranged on guide rod 4, and one end of spring 5 and carrier block 13 push against, It is pushed against on the other end and guide rod 4 close to one end of upper diaphragm pressure roller 8, i.e., guide rod 4 is when upper diaphragm pressure roller 8 is not by diaphragm pressure Tightly elastic force when on diaphragm top plate 23 by spring 5 to the right, wherein limited block 2 can be with restricted guidance bar 4 from carrier block 13 It skids off, first driving device 1 is for driving carrier block 13 to move on sliding rail 14.
Specifically, the fixing end of the second driving device 3 is fixed on carrier block 13, and the fixing end of third driving device 11 is solid It is scheduled on carrier block 13.I.e. when first driving device 1 drives carrier block 13 mobile, the second driving device 3 and third driving dress Movement can also be followed by setting 11, therefore the speed of service of mechanism can be improved, at the same by diaphragm cutter device and three station winding heads away from From widening, guarantee that 15 cauda of negative electrode tab can be fitted to smoothly on cathode cauda supporting plate 24, and guarantee 15 cauda of negative electrode tab not It will receive damage, and then improve the yields of battery core 21.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
A kind of lithium battery diaphragm cutter device provided by the present invention is described in detail above.It is used herein A specific example illustrates the principle and implementation of the invention, and the above embodiments are only used to help understand originally The method and its core concept of invention.It should be pointed out that for those skilled in the art, not departing from this hair , can be with several improvements and modifications are made to the present invention under the premise of bright principle, these improvement and modification also fall into power of the present invention In the protection scope that benefit requires.

Claims (7)

1. a kind of lithium battery diaphragm cutter device characterized by comprising three station winding heads, first driving device, upper diaphragm Pressure roller, the second driving device, cutter, third driving device, lower diaphragm plate pressure roller, it is in positive three that the three stations winding head, which includes three pieces, The diaphragm top plate of angular arrangement and three are separately positioned on the volume needle of the diaphragm top plate apex, one of diaphragm Upper diaphragm pressure roller, the cutter described in top plate face and the lower diaphragm plate pressure roller, the first driving device are described for driving Upper diaphragm pressure roller is mobile towards the diaphragm top plate, and the third driving device is for driving the lower diaphragm plate pressure roller described in Diaphragm top plate is mobile, and diaphragm is pressed on the diaphragm top board surface, and second driving device is for driving described cut Knife is mobile towards the diaphragm top plate, to cut off the diaphragm being pressed on the diaphragm top plate.
2. lithium battery diaphragm cutter device according to claim 1, which is characterized in that further include being filled with first driving The cathode that the telescopic end set is fixedly connected enters piece supporting plate, and the cathode enters piece supporting plate equipped with venthole.
3. lithium battery diaphragm cutter device according to claim 1, which is characterized in that further include cathode cauda supporting plate and negative Finish up blowning installation for pole, and the cathode ending blowning installation is fixed on the telescopic end of the third driving device, and the cathode is received Make-up gas device is used to the cauda of negative electrode tab being fitted in the cathode cauda supporting plate.
4. lithium battery diaphragm cutter device according to any one of claims 1 to 3, which is characterized in that further include sliding rail and Carrier block, the carrier block are slidably connected on the sliding rail, are interted on the carrier block and are slidably connected guide rod, it is described on Diaphragm pressure roller is fixed on one end of the guide rod, and the other end of the guide rod is equipped with limited block, is arranged on the guide rod There is spring, one end of the spring and the carrier block push against, close to the upper diaphragm pressure roller on the other end and the guide rod One end push against, the first driving device is for driving the carrier block to move on the sliding rail.
5. lithium battery diaphragm cutter device according to claim 4, which is characterized in that the fixation of second driving device End is fixed on the carrier block.
6. lithium battery diaphragm cutter device according to claim 4, which is characterized in that the fixation of the third driving device End is fixed on the carrier block.
7. lithium battery diaphragm cutter device according to claim 4, which is characterized in that the upper diaphragm pressure roller passes through more The guide rod is slidably connected with the carrier block.
CN201910531759.5A 2019-06-19 2019-06-19 Lithium battery diaphragm cutting device Active CN110197885B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112510321A (en) * 2020-12-02 2021-03-16 江西量子新能源科技有限公司 Lithium ion battery diaphragm cuts off positioner

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CN108858307A (en) * 2018-08-02 2018-11-23 东莞市泽源机械有限公司 A kind of lithium battery winder cuts diaphragm mechanism
CN208747253U (en) * 2018-09-11 2019-04-16 东莞市和明机械有限公司 Piece blowning installation is sent automatically based on quadrate lithium battery application
CN109728316A (en) * 2018-12-12 2019-05-07 深圳市诚捷智能装备股份有限公司 Winding device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112510321A (en) * 2020-12-02 2021-03-16 江西量子新能源科技有限公司 Lithium ion battery diaphragm cuts off positioner

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