CN111180804A - Diaphragm guide device and processing method thereof, and square power electric core winding machine - Google Patents

Diaphragm guide device and processing method thereof, and square power electric core winding machine Download PDF

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Publication number
CN111180804A
CN111180804A CN201911422908.0A CN201911422908A CN111180804A CN 111180804 A CN111180804 A CN 111180804A CN 201911422908 A CN201911422908 A CN 201911422908A CN 111180804 A CN111180804 A CN 111180804A
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China
Prior art keywords
winding
station
diaphragm
axis
guide
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Pending
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CN201911422908.0A
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Chinese (zh)
Inventor
曹海霞
黎红宁
张晓潮
黄桂新
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Zhuhai Higrand Technology Co Ltd
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Zhuhai Higrand Technology Co Ltd
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Priority to CN201911422908.0A priority Critical patent/CN111180804A/en
Publication of CN111180804A publication Critical patent/CN111180804A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/058—Construction or manufacture
    • H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/30—Lifting, transporting, or removing the web roll; Inserting core
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
    • B65H23/032—Controlling transverse register of web
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

The invention provides a diaphragm guide device and a processing method thereof, and a square power electric core winding machine, wherein the diaphragm guide device comprises a winding unit which is provided with a winding station, a rubberizing station and a discharging station, the winding unit comprises a winding head body and three winding needles, and the winding head body drives the winding needles to move among the winding station, the rubberizing station and the discharging station; the guide unit comprises a press roller, an X-axis driving mechanism and a Y-axis driving mechanism, wherein the X-axis driving mechanism drives the press roller to move along an X axis, the Y-axis driving mechanism drives the X-axis driving mechanism to move along a Y axis, the X-axis driving mechanism and the Y-axis driving mechanism drive the press roller to move between a first position and a second position, the first position is located at the upstream end of the winding station, and the second position is located between the rubberizing station and the winding station along the feeding direction of the winding needle. A processing method of the diaphragm guide device and a square power electric core winding machine provided with the diaphragm guide device. The square power electric core winding machine, the diaphragm guide device and the processing method thereof have the advantage of high production efficiency.

Description

Diaphragm guide device and processing method thereof, and square power electric core winding machine
Technical Field
The invention relates to the technical field of battery production equipment, in particular to a diaphragm guide device, a processing method of the diaphragm guide device and a square power electric core winding machine with the diaphragm guide device.
Background
The lithium ion battery is a high and new technology product, is also a novel environment-friendly battery with high capacity and long service life, and is mainly used in various fields such as electric bicycles, electric automobiles, electric motorcycles, electric tools, solar photovoltaic and wind power generation energy storage systems, portable mobile power supplies, notebook computers, electric tools, mine safety equipment, digital products and the like.
The existing lithium battery core rolling is mainly finished by a core winder, and the core winder forms the lithium battery core by stacking, winding and gluing a positive pole piece, a negative pole piece and a diaphragm according to a certain sequence. In order to improve the production speed of the electric core winding machine, the existing electric core winding machine generally adopts a three-station winding head, namely three winding needles which can work independently are arranged on the winding head, so that after the winding of the pole piece diaphragm is completed by a first winding needle, the first winding needle can rotate to a second station from the first station, and the electric core which is rolled is rubberized. When the first winding needle rotates from the first station to the second station, the second winding needle rotates from the third station to the first station to prepare for winding of the next battery cell; and the third winding needle rotates from the second station to the third station to prepare for detaching the battery core on the third winding needle.
However, when the winding needle rotates from the first station to the second station, the diaphragm is not cut, the diaphragm moves to the second station along with the winding needle, and the position of the diaphragm is easy to deviate in the process that the diaphragm moves along with the winding needle, so that the position of the diaphragm is corrected by the correcting mechanism. However, since the guide operation of the conventional guide mechanism partially interferes spatially with the operation of the winding needle switching station, the operation time of the guide mechanism and the operation time of the winding needle switching station need to be shifted, and this causes the other devices of the core winder to have to suspend the operation to wait for the winding needle to switch the stations, which results in a limitation in the production speed of the core winder and a difficulty in further improvement in the production efficiency.
Disclosure of Invention
In order to solve the above problems, it is a primary object of the present invention to provide a diaphragm guide apparatus that can improve the productivity of a core winder.
The invention also provides a processing method of the diaphragm guide device.
It is a further object of the present invention to provide a square power core winder provided with the above diaphragm guide.
In order to achieve the main purpose of the invention, the invention provides a diaphragm guide device which comprises a winding unit and a guide unit, wherein the winding unit is provided with a winding station, a rubberizing station and a discharging station, the winding unit comprises a winding head body and three winding needles, the winding needles are slidably mounted on the winding head body along the axial direction of the winding needles, the winding head body drives the winding needles to move among the winding station, the rubberizing station and the discharging station, the guide unit comprises a press roller, an X-axis driving mechanism and a Y-axis driving mechanism, the press roller is parallel to the winding needles, the press roller is provided with a first position and a second position, the first position is located at the upstream end of the winding station along the feeding direction of the winding needles, the second position is located between the rubberizing station and the winding station, the X-axis driving mechanism drives the press roller to move along the X axis, the Y-axis driving mechanism drives the X-axis driving mechanism to move along the Y axis, and the X-axis driving mechanism and the Y-axis driving mechanism jointly drive the press roller to.
It is thus clear that, when the needle carries out the station switching when the coiling head body drive of winding unit, the X axle actuating mechanism and the Y axle actuating mechanism of direction unit can link, move to first position department earlier with the drive compression roller, remove to second position department again, make the compression roller can lead to the diaphragm that moves to the book needle of rubberizing station department from coiling station department, rotate the book needle to coiling station department from unloading station department can be accurate, reliable press from both sides the diaphragm after being led tightly, and above-mentioned structural design still makes direction unit and winding unit can simultaneous working, the efficiency of convoluteing of winding unit has been improved.
The further proposal is that the X axis is vertical to the Y axis, and the Y axis is parallel to the radial direction of the winding head body passing through the winding station.
Therefore, the installation position of the guide unit and the mechanism layout of the diaphragm guide device are optimized through the position design of the Y-axis driving mechanism, and the X-axis driving mechanism and the Y-axis driving mechanism can drive the press roller to move between the first position and the second position more conveniently, accurately and reliably.
In a further aspect, a line is formed between the first position and the second position, the line being parallel to the Y axis, and the winding station being located on the line.
It can be seen from above that, the accuracy and the reliability that the roll needle that improvement unloading station department that above-mentioned design can be further rotated to coiling station department presss from both sides tightly the diaphragm after to being led can make the structural layout of diaphragm guider and be provided with this diaphragm guider's electric core winder more reasonable and compact simultaneously.
According to a further scheme, the diaphragm guide device further comprises a diaphragm guide wheel set, the diaphragm guide wheel set is located on the connecting line and provided with a guide passage, and the first position is located between the diaphragm guide wheel set and the winding station.
It is thus clear that, diaphragm guide wheel group is used for leading diaphragm and the pole piece that the needle was rolled up to the first time that gets into coiling station department, guarantee that this is rolled up the needle and can be accurate, press from both sides diaphragm and pole piece reliably tightly, in addition, diaphragm guide wheel group still is used for the supplementary compression roller that is located second position department to lead the diaphragm, make the diaphragm before being cut, the needle that rolls up that is located coiling station department can be earlier accurate, reliable the clamp is tight to diaphragm and the pole piece after being led, guarantee the coiling unit to the reliability of diaphragm and pole piece coiling and the coiling precision of coiling unit.
The still further scheme is that X axle actuating mechanism includes cylinder and connecting seat, cylinder and Y axle actuating mechanism's output fixed connection, the body of rod fixed connection of connecting seat and cylinder, and the compression roller is rotationally installed on the connecting seat around the axis of self, and the cylinder can drive the connecting seat and move towards the coiling station along the X axle.
From the above, adopt the cylinder to contact with the diaphragm to the first position department that can make the compression roller rapid draing as the driving source of X axle actuating mechanism to lead the diaphragm, improved the winding efficiency of winding unit.
According to a further scheme, the Y-axis driving mechanism comprises a mounting seat, a sliding seat, a motor and a ball screw, a first guide rail is arranged on the mounting seat and extends along the Y axis, the sliding seat is slidably mounted on the first guide rail, the X-axis driving mechanism is mounted on the sliding seat, the motor is mounted on the mounting seat, a motor shaft of the motor is parallel to the Y axis, the ball screw and the motor shaft of the ball screw are coaxially arranged, and a nut of the ball screw is fixedly connected with the sliding seat.
Therefore, the combination mechanism of the motor and the ball screw drives the press roller to move from the first position to the second position, so that the stability of the press roller in the moving process can be ensured, and the influence of severe shaking on the winding precision of the winding unit caused by the press roller is avoided; the compression roller can have higher moving precision, the position of the diaphragm is prevented from moving in the moving process of the compression roller, and the position of the diaphragm is prevented from deviating; and the position of the guided diaphragm can meet the clamping requirement of the winding needle at the winding station after the press roller moves to the second position.
In order to achieve another object of the present invention, the present invention provides a processing method of a diaphragm guide device, wherein the diaphragm guide device is the above diaphragm guide device, and the processing method includes: the winding head body rotates by a station, so that the winding needle positioned at the winding station moves to the rubberizing station, the winding needle positioned at the rubberizing station moves to the blanking station, and the winding needle positioned at the blanking station moves to the winding station; in the rotation process of the winding head body, the X-axis driving mechanism drives the pressing roller to move to a first position, and after the pressing roller moves to the first position, the Y-axis driving mechanism drives the X-axis driving mechanism and the pressing roller to move to the rubberizing station, so that the pressing roller moves to a second position to complete the guiding of the diaphragm; after the winding head body rotates in place and the press roller moves to the second position, the winding needle positioned at the winding station extends out to clamp the diaphragm.
Therefore, the processing method can enable the winding head body of the winding unit to drive the winding needle to switch the stations, the guide unit can work simultaneously, the compression roller can guide the diaphragm in the rotating process of the winding head body, and therefore the winding efficiency of the winding unit is effectively improved.
In order to achieve still another object of the present invention, the present invention provides a square power electric core winder, wherein the diaphragm guide device is included.
It can be seen from the above that the square power electric core winder provided with the diaphragm guide device can enable the winding unit and the guide unit to work simultaneously, namely, the winding head body of the winding unit drives the winding needle to perform station switching, and the compression roller of the guide unit can guide the diaphragm in the rotation process of the winding head body, so that the winding efficiency of the winding unit is effectively improved, the waiting time of other devices of the square power electric core winder is saved when the winding head is reversed, and the production efficiency of the square power electric core winder is improved.
The square power electric core winding machine comprises a membrane cutting device, wherein the membrane cutting device comprises a driving unit and a cutting tail end, the driving unit can drive the cutting tail end to move to a third position, and the third position is located between a winding station and a second position along the feeding direction.
Therefore, the diaphragm cutting device is used for being matched with the guide unit to cut off the diaphragm, so that the winding needle which is rotated to the winding station from the blanking station can accurately and reliably clamp the pole piece and the diaphragm at the winding station.
In a further proposal, the cutting end is a cutting knife or an electric heating wire.
Therefore, the cutting tail end of the diaphragm cutting device can be selected adaptively according to the structural layout and production requirements of the square power electric core winding machine.
Drawings
Figure 1 is a schematic view of a first position of a first embodiment of a diaphragm guide of the present invention.
Fig. 2 is a schematic structural view of a winding unit of a first embodiment of the diaphragm guide apparatus of the present invention.
Figure 3 is a first configuration of a guide unit of a first embodiment of a diaphragm guide of the present invention.
Figure 4 is a second block diagram of the guide unit of the first embodiment of the diaphragm guide of the present invention.
Figure 5 is a schematic view of a first embodiment of the diaphragm guide of the present invention in a second position.
Figure 6 is a schematic view of the diaphragm guide of the present invention in a third position.
Figure 7 is a schematic view of the diaphragm guide of the present invention in a fourth position according to the first embodiment of the present invention.
The invention is further explained with reference to the drawings and the embodiments.
Detailed Description
First embodiment of the diaphragm guide:
referring to fig. 1, a diaphragm guide apparatus 100 includes a winding unit 1, a guide unit 2, and a diaphragm guide wheel group 3. With reference to fig. 2, the winding unit 1 has a winding station i, a rubberizing station ii, and a blanking station iii, wherein the positions of the winding station i, the rubberizing station ii, and the blanking station iii are fixed.
The winding unit 1 comprises a winding head body 11 and three winding needles 12, each winding needle 12 is rotatably mounted on the winding head body 11 around its own axis, and each winding needle 12 can slide relative to the winding head body 11 along its own axis. The winding head body 11 can rotate around the axis of the winding head body to drive each winding needle 12 to move among the winding station I, the rubberizing station II and the blanking station III along the rotation direction R of the winding head body, and the winding needles 12 are switched in position.
Referring to fig. 3 and 4, the guide unit 2 includes a platen roller 21, an X-axis driving mechanism 22, and a Y-axis driving mechanism 23. The press roller 21 is arranged in parallel with the winding needle 12, and the press roller 21 is used for guiding the diaphragm 10 on the winding needle 12 in the process that the winding needle 12 is switched from the winding station I to the rubberizing station II, so that the winding needle 12 switched from the blanking station III to the winding station I can reliably clamp the diaphragm 10 at the winding station I. Wherein the pressure roller 21 has a first position located at the upstream end of the winding station i in the feeding direction of the winding needle 12, i.e. in the transport direction of the separator 10 at the winding station i of the winding needle 12. In addition, the second position is located between the rubberizing station ii and the winding station i in the feeding direction of the winding needle 12.
The press roller 21 is connected with an output end of an X-axis driving mechanism 22, the X-axis driving mechanism 22 is used for driving the press roller 21 to move along an X axis, the X-axis driving mechanism 22 is connected with an output end of a Y-axis driving mechanism 23, the Y-axis driving mechanism 23 is used for driving the X-axis driving mechanism 22 and the press roller 21 to move along a Y axis, the X axis is perpendicular to the Y axis, and the linkage between the X-axis driving mechanism 22 and the Y-axis driving mechanism 23 can drive the press roller 21 to switch between a first position and a second position. Through the structural design to the guide unit 2, when the winding head body 11 of the winding unit 1 drives the winding needle 12 to switch the stations, the X-axis driving mechanism 22 and the Y-axis driving mechanism 23 of the guide unit 2 can be linked simultaneously to drive the pressing roller 21 to move to the first position and then to the second position, so that the pressing roller 21 can guide the diaphragm 10 on the winding needle 12 moved to the rubberizing station II from the winding station I, and the winding needle 12 moved to the winding station I from the blanking station III can be accurately and reliably clamped on the guided diaphragm 10. In addition, the structural design of the guide unit 2 also enables the guide unit 2 to work simultaneously with the winding unit 1, so that the total time for winding a single battery cell is reduced, the waiting time of other devices of the battery cell winding machine when the winding unit 1 is reversed is reduced, the winding efficiency of the winding unit 1 is improved, and the production efficiency of the battery cell winding machine provided with the diaphragm guide device 100 can be improved.
Specifically, the Y-axis drive mechanism 23 includes a mount 231, a slide mount 232, a motor 233, and a ball screw 234. The first guide rail 2311 is arranged on the mounting seat 231, the first guide rail 2311 extends along the Y axis, namely, the first guide rail 2311 is parallel to the Y axis, the first guide rail 2311 is parallel to the radial direction of the winding head body 11 passing through the winding station i, and the mounting position of the guide unit 2 and the structural layout of the diaphragm guide device 100 are optimized by arranging the position of the first guide rail 2311, and the X-axis driving mechanism 22 and the Y-axis driving mechanism 23 can drive the press roller 21 to move between the first position and the second position more conveniently, accurately and reliably.
The sliding seat 232 is slidably installed on the first guide rail 2311 along the extending direction of the first guide rail 2311, the motor 233 is fixedly installed on the installation seat 231, and the motor 233 shaft of the motor 233 is parallel to the first guide rail 2311. The screw shaft of the ball screw 234 and the shaft of the motor 233 are coaxially arranged, and the nut of the ball screw 234 is fixedly connected with the sliding seat 232, so that the motor 233 can drive the sliding seat 232 to precisely move through the ball screw 234.
The X-axis driving mechanism 22 includes a cylinder 221 and a connecting seat 222, and the sliding seat 232 is provided with a second guide rail 2321, and the second guide rail 2321 is parallel to the X-axis. The cylinder 221 is installed on the sliding seat 232, and a rod body of the cylinder 221 is parallel to the second guide 2321. The pressing roller 21 is rotatably mounted on the connecting seat 222 around its axis, the connecting seat 222 is slidably mounted on the second guide rail 2321 along the extending direction of the second guide rail 2321, and the rod body of the air cylinder 221 is connected with the connecting seat 222 to drive the connecting seat 222 and the pressing roller 21 to slide along the second guide rail 2321, that is, the air cylinder 221 drives the connecting seat 222 and the pressing roller 21 to move along the X axis.
Preferably, the first position and the second position form a connecting line L (see fig. 6), the connecting line L is parallel to the Y axis, and the winding station i is located on the connecting line L, and by designing the relative positions of the first position, the second position and the winding station i, the winding needle 12 rotating from the blanking station iii to the winding station i can further accurately and reliably clamp the guided diaphragm 10 at the winding station i, so that the structural layout of the diaphragm guide device 100 and the cell winding machine provided with the diaphragm guide device 100 can be more reasonable and compact.
In addition, since the pressing roller 21 needs to move to the first position before moving to the second position, in combination with the above-mentioned design of the relative positions of the first position, the second position and the winding station i, when the winding head body 11 drives the winding needle 12 to perform station switching, during the rotation of the winding head body 11, the X-axis driving mechanism 22 of the guiding unit 2 needs to first drive the pressing roller 21 to move to the first position along the X-axis, and then the Y-axis driving mechanism 23 drives the pressing roller 21 and the X-axis driving mechanism 22 to move along the Y-axis to the glue application station ii, so that the pressing roller 21 moves to the second position. The design can also avoid the change of the relative position between the X-axis driving mechanism 22 and the Y-axis driving mechanism 23 in the moving process of the press roller 21, and the reliability of the press roller 21 for guiding the diaphragm 10 is improved.
Because the winding head body 11 drives the winding needle 12 to perform the station switching process, the pressing roller 21 needs to be moved to the first position to contact with the diaphragm 10 to guide the diaphragm 10, and then the pressing roller 21 can be moved to the second position, so that the pressing roller 21 needs to be moved to the diaphragm 10 at a faster speed, and the cylinder 221 is used as a driving source of the X-axis driving mechanism 22 to enable the pressing roller 21 to be moved to the first position to contact with the diaphragm 10 more quickly and reliably to guide the diaphragm 10, thereby improving the winding efficiency of the winding unit 1.
When the press roller 21 moves to the first position, the press roller 21 is already in contact with the diaphragm 10 and plays a role in guiding the diaphragm 10, and then the Y-axis driving mechanism 23 drives the press roller 21 at the first position to move to the second position in coordination with the rotation of the winding head body 11, so that the Y-axis driving mechanism 23 has a long action time, and when the press roller 21 moves from the first position to the second position, the influence on the diaphragm 10 needs to be avoided as much as possible and the position precision of the diaphragm 10 needs to be ensured, therefore, the press roller 21 is driven to move from the first position to the second position by adopting a combined mechanism of the motor 233 and the ball screw 234, so that the stability in the moving process of the press roller 21 can be ensured, and the winding precision of the winding unit 1 is prevented from being influenced by the violent shaking of the press roller 21; the compression roller 21 can have higher moving precision, and the position of the diaphragm 10 is prevented from being deviated in the moving process of the compression roller 21; and can also ensure that the position of the guided diaphragm 10 can meet the clamping requirement of the winding needle 12 at the winding station I after the press roller 21 moves to the second position.
Diaphragm guide wheelset 3 is located line L, and first position is located between diaphragm guide wheelset 3 and coiling station I, and diaphragm guide wheelset 3 includes the guide wheel 31 of two relative settings, forms the guide channel between two guide wheels 31, and this guide channel is used for leading diaphragm 10 and the pole piece that gets into the book needle 12 of coiling station I department for the first time, guarantees that the book needle 12 of coiling station I department can be accurate, press from both sides diaphragm 10 and pole piece reliably. In addition, the membrane guide wheel group 3 can also be used for assisting the compression roller 21 at the second position to guide the membrane 10, so that the winding needle 12 at the winding station i can accurately and reliably clamp the guided membrane 10 and the guided pole piece before the membrane 10 is cut, and the reliability of the winding unit 1 for the membrane 10 and the pole piece and the winding precision of the winding unit 1 are ensured.
Second embodiment of the diaphragm guide:
the difference between this embodiment and the first embodiment of the diaphragm guide device lies in the structure of the compression roller, specifically, in this embodiment, the compression roller is no longer a roller structure, but includes a first roller, a second roller and a linear cylinder, wherein the first roller is rotatably mounted on a connecting seat around its axis, the linear cylinder is mounted on the connecting seat, a rod body of the linear cylinder is parallel to the first roller, the second roller is located between the first roller and the winding head body, the second roller is rotatably mounted on the rod body of the linear cylinder around its axis, and the linear cylinder drives the second roller to move along the axial direction of the second roller. When the second roller shaft is driven by the linear cylinder to move to the position opposite to the first roller shaft, namely the first roller shaft and the second roller shaft are arranged in parallel in the radial direction of the first roller shaft, a clamping jaw mechanism is formed between the first roller shaft and the second roller shaft, and a diaphragm channel is formed between the first roller shaft and the second roller shaft, so that the first roller shaft and the second roller shaft clamp the diaphragm, and the diaphragm can be guided along with the driving of the X-axis driving mechanism and the Y-axis driving mechanism. When the linear cylinder drives the second roller shaft to move so that the first roller shaft and the second roller shaft are arranged in a staggered mode, the diaphragm channel disappears, and the first roller shaft and the second roller shaft release clamping and guiding of the diaphragm.
The embodiment of the processing method of the diaphragm guide device comprises the following steps:
the processing method of this embodiment is a method for guiding the diaphragm 10 on the winding needle 12 during the switching of the winding needle 12 from the winding station i to the rubberizing station ii by the diaphragm guide device in the first embodiment or the second embodiment of the diaphragm guide device, and with reference to fig. 1 to 7, the processing method includes:
firstly, as shown in fig. 1, the separator 10 and the pole piece are fed to a winding station i via a separator guide wheel set 3, a winding needle 12 at the winding station i is made to extend out along the axial direction of the winding needle and clamp the separator 10 and the pole piece, and then the winding needle 12 starts to roll the battery core.
Next, as shown in fig. 5, after the winding needle 12 at the winding station i finishes winding the separator 10 and the pole piece of the electric core, the winding head body 11 rotates by one station along the rotation direction R of itself, so that the winding needle 12 at the winding station i moves to the rubberizing station ii, the winding needle 12 at the rubberizing station ii moves to the blanking station iii, and the winding needle 12 at the blanking station iii moves to the winding station i.
Next, as shown in fig. 6, during the rotation of the winding head body 11, the X-axis drive mechanism 22 of the guide unit 2 drives the pressure roller 21 to move along the X-axis, moving the pressure roller 21 to the first position and abutting the diaphragm 10. After the press roller 21 moves to the first position, the Y-axis driving mechanism 23 drives the X-axis driving mechanism 22 and the press roller 21 to move to the rubberizing station ii along with the rotation of the winding head body 11, and before or when the winding head body 11 rotates to the proper position, the press roller 21 is located at the second position, so that the guiding of the diaphragm 10 is completed.
Then, after the winding head body 11 rotates in place, the winding needle 12 in situ at the winding station I is moved to the rubberizing station II to prepare for rubberizing the battery cell at the winding position on the winding needle 12; the winding needle 12 originally located at the blanking station III is moved to the winding station I, and then the winding needle 12 extends out of the winding head body 11 along the axis of the winding needle to clamp the diaphragm 10 and the pole piece located at the winding station I.
Next, the cutting end 4 of the electrical core winder for cutting the separator 10 cuts the separator 10 between the winding station i and the second position.
Next, as shown in fig. 7, the winding needle 12 at the adhesive applying station ii terminates and applies adhesive to the diaphragm 10 and the pole piece, and the winding needle 12 at the winding station i winds a new cell, and the X-axis driving mechanism 22 of the guiding unit 2 drives the pressing roller 21 to move in the reverse direction along the X-axis to perform resetting, and after the X-axis driving mechanism 22 drives the pressing roller 21 to complete resetting, the Y-axis driving mechanism 23 drives the X-axis driving mechanism 22 and the pressing roller 21 to move in the reverse direction along the Y-axis to perform resetting until the pressing roller 21, the X-axis driving mechanism 22 and the Y-axis driving mechanism 23 return to the initial positions, and resetting of the guiding unit 2 is completed.
Square power electrical core winder embodiment:
the square power electric core winder comprises the diaphragm guide device in the embodiment of the diaphragm guide device, the square power electric core winder provided with the diaphragm guide device can enable the winding unit and the guide unit to work simultaneously, namely, in the process that the winding head body of the winding unit drives the winding needle to switch work positions, the compression roller of the guide unit can guide the diaphragm in the rotating process of the winding head body, the winding efficiency of the winding unit is effectively improved, the waiting time of other devices of the square power electric core winder is saved when the winding unit is reversed, and therefore the production efficiency of the square power electric core winder is improved.
In addition, the square power electric core winding machine further comprises a membrane cutting device, the membrane cutting device comprises a driving unit and a cutting tail end, the driving unit can drive the cutting tail end to move to a third position, the third position is located between the winding station and the second position along the feeding direction of the winding needle, and preferably, the cutting tail end located at the third position and the press roller located at the second position are located on two opposite sides of the membrane respectively so as to ensure that the membrane can be reliably cut by the cutting tail end. Wherein, the cutting end can be a cutting knife or an electric heating wire.
Finally, it should be emphasized that the above-described preferred embodiments of the present invention are merely examples of implementations, rather than limitations, and that many variations and modifications of the invention are possible to those skilled in the art, without departing from the spirit and scope of the invention.

Claims (10)

1. A diaphragm guide, comprising:
the winding unit is provided with a winding station, a rubberizing station and a blanking station, and comprises a winding head body and three winding needles, wherein the winding needles are slidably mounted on the winding head body along the axial direction of the winding needles, and the winding head body drives the winding needles to move among the winding station, the rubberizing station and the blanking station;
the guide unit, the guide unit includes compression roller, X axle actuating mechanism and Y axle actuating mechanism, the compression roller is on a parallel with roll up the needle, the compression roller has primary importance and second position, follows roll up the direction of feed of needle, primary importance is located the upstream end of coiling the station the second place is located the rubberizing station with between the coiling the station, X axle actuating mechanism drive the compression roller removes along the X axle, Y axle actuating mechanism drive X axle actuating mechanism removes along the Y axle, just X axle actuating mechanism with Y axle actuating mechanism drive the compression roller is in primary importance with remove between the second position.
2. The diaphragm guide of claim 1, wherein:
the X axis is perpendicular to the Y axis, and the Y axis is parallel to the radial direction of the winding head body passing through the winding station.
3. The diaphragm guide of claim 2, wherein:
a connecting line is formed between the first position and the second position, the connecting line is parallel to the Y axis, and the winding station is located on the connecting line.
4. A diaphragm guide according to claim 3, wherein:
the diaphragm guide device further comprises a diaphragm guide wheel set, the diaphragm guide wheel set is located on the connecting line and provided with a guide passage, and the first position is located between the diaphragm guide wheel set and the winding station.
5. A diaphragm guide according to any one of claims 1 to 4, wherein:
the X-axis drive mechanism includes:
the air cylinder is fixedly connected with the output end of the Y-axis driving mechanism;
the connecting seat, the connecting seat with the body of rod fixed connection of cylinder, the compression roller is rotationally installed around the axis of self on the connecting seat, the cylinder can drive the connecting seat is followed the X axle is towards the removal of coiling station.
6. A diaphragm guide according to any one of claims 1 to 4, wherein:
the Y-axis drive mechanism includes:
the mounting base is provided with a first guide rail, and the first guide rail extends along the Y axis;
the sliding seat is slidably arranged on the first guide rail, and the X-axis driving mechanism is arranged on the sliding seat;
the motor is arranged on the mounting seat, and a motor shaft of the motor is parallel to the Y axis;
the ball screw, the lead screw of ball screw with the coaxial setting of motor shaft, ball screw's nut with sliding seat fixed connection.
7. A method of manufacturing a diaphragm guide according to any one of claims 1 to 6, the method comprising:
the winding head body rotates by one station, so that the winding needle positioned at the winding station moves to the rubberizing station, the winding needle positioned at the rubberizing station moves to the blanking station, and the winding needle positioned at the blanking station moves to the winding station;
in the rotation process of the winding head body, the X-axis driving mechanism drives the compression roller to move to the first position, and after the compression roller moves to the first position, the Y-axis driving mechanism drives the X-axis driving mechanism and the compression roller to move to the rubberizing station, so that the compression roller moves to the second position to complete the guiding of the diaphragm;
and after the winding head body rotates in place and the press roller moves to the second position, the winding needle positioned at the winding station extends out to clamp the diaphragm.
8. A square power core winder comprising a diaphragm guide device according to any one of claims 1 to 6.
9. The square power electrical core winder of claim 8, wherein:
the square power electric core winder comprises a membrane cutting device, and the membrane cutting device comprises:
a drive unit;
a cutting tip, the drive unit being configured to drive the cutting tip to move to a third position, the third position being located between the winding station and the second position along the feed direction.
10. The square power electrical core winder of claim 9, wherein:
the cutting tail end is a cutter or an electric heating wire.
CN201911422908.0A 2019-12-30 2019-12-30 Diaphragm guide device and processing method thereof, and square power electric core winding machine Pending CN111180804A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911422908.0A CN111180804A (en) 2019-12-30 2019-12-30 Diaphragm guide device and processing method thereof, and square power electric core winding machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911422908.0A CN111180804A (en) 2019-12-30 2019-12-30 Diaphragm guide device and processing method thereof, and square power electric core winding machine

Publications (1)

Publication Number Publication Date
CN111180804A true CN111180804A (en) 2020-05-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911422908.0A Pending CN111180804A (en) 2019-12-30 2019-12-30 Diaphragm guide device and processing method thereof, and square power electric core winding machine

Country Status (1)

Country Link
CN (1) CN111180804A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113478537A (en) * 2021-06-15 2021-10-08 上海骄成超声波技术股份有限公司 Diaphragm cutting device and lithium battery winding machine
WO2021243582A1 (en) * 2020-06-02 2021-12-09 宁德时代新能源科技股份有限公司 Apparatus and method for preparing electrode assembly
CN114284571A (en) * 2021-12-30 2022-04-05 深圳吉阳智能科技有限公司 Winding device and winding method
CN114497890A (en) * 2022-01-27 2022-05-13 深圳吉阳智能科技有限公司 Flying cutting mechanism for battery core diaphragm

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021243582A1 (en) * 2020-06-02 2021-12-09 宁德时代新能源科技股份有限公司 Apparatus and method for preparing electrode assembly
US11476492B2 (en) 2020-06-02 2022-10-18 Contemporary Amperex Technology Co., Limited Device for preparing electrode assembly and preparation method of electrode assembly
CN113478537A (en) * 2021-06-15 2021-10-08 上海骄成超声波技术股份有限公司 Diaphragm cutting device and lithium battery winding machine
CN114284571A (en) * 2021-12-30 2022-04-05 深圳吉阳智能科技有限公司 Winding device and winding method
CN114497890A (en) * 2022-01-27 2022-05-13 深圳吉阳智能科技有限公司 Flying cutting mechanism for battery core diaphragm

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