CN111477974B - Misplacement winding needle structure of sheet-making winding machine and electric core winding method thereof - Google Patents
Misplacement winding needle structure of sheet-making winding machine and electric core winding method thereof Download PDFInfo
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- CN111477974B CN111477974B CN202010398763.1A CN202010398763A CN111477974B CN 111477974 B CN111477974 B CN 111477974B CN 202010398763 A CN202010398763 A CN 202010398763A CN 111477974 B CN111477974 B CN 111477974B
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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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0404—Machines for assembling batteries
- H01M10/0409—Machines for assembling batteries for cells with wound electrodes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The invention relates to a dislocation winding needle structure of a square lithium battery flaking winder, which comprises an upper fixing seat, a lower fixing seat, an outer moving needle mounting block, an inner moving needle mounting block, an outer moving needle, an inner moving needle, an outer fixed needle, an inner moving needle and a winding needle spring, wherein an upper protruding block is arranged above the inner moving needle mounting block, a lower protruding block is arranged below the outer moving needle mounting block, the upper protruding block is driven to extend from the upper fixing seat by the normal lower winding needle spring, the lower protruding block is driven to extend from the lower fixing seat by the winding needle spring, the inner moving needle and the inner moving needle are in an open state so as to facilitate the penetration of a diaphragm, when a rotating shaft needs to rotate and wind out a battery core, the upper protruding block and the lower protruding block are pressed into the inner side of the fixing seat, the upper protruding block and the lower protruding block are moved in opposite directions, the inner moving needle moves inwards to compress the inner moving needle so as to clamp the diaphragm, the outer moving needle moves outwards to open and keep the reference internal dimension of the battery core, after winding is finished, the upper protruding block and the inner moving needle are reset, the inner moving needle is opened, and the outer moving needle is retracted so as to facilitate the drawing needle, the dislocation winding needle structure is reasonable in design, and has the advantages of convenience in wearing, firm clamping, and convenience in drawing.
Description
Technical Field
The invention relates to the field of lithium ion battery manufacturing equipment, in particular to a dislocation winding needle structure of a square lithium battery flaking winding machine and a battery core winding method thereof.
Background
The lithium ion battery is composed of a positive electrode plate, a negative electrode plate, a diaphragm, a tab and the like, the lithium ion battery can be divided into a square sheet-making winding machine and a cylindrical sheet-making winding machine according to the shape, the sheet-making winding machine can also be classified into the square sheet-making winding machine and the cylindrical sheet-making winding machine, a winding needle is one of the most important parts among a plurality of components of the sheet-making winding machine, the winding needle structure directly influences the winding forming of a battery cell, the winding needle has two functions, firstly, the winding needle is responsible for inserting the diaphragm when the winding station is used, winding the diaphragm is clamped stably and then drives the left electrode plate and the right electrode plate to wind together to form a bare battery cell, secondly, the winding needle needs to be opened in time to perform needle extraction when the needle extraction is used for discharging station, the existing winding needle structure is simple in design, the risks that the diaphragm is scratched when the winding needle is discharged or the battery cell is poor after the winding needle is wound are frequently caused, the winding needle is unstable and the winding needle is difficult to break through the industry, and the winding needle is the direction of the winding machine equipment.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a dislocation winding needle structure of a square lithium battery sheet-making winding machine and a battery core winding method thereof, and the specific technical scheme is as follows:
the utility model provides a needle structure is rolled up in dislocation of square lithium cell film-making coiler, including last fixing base, lower fixing base, outer needle installation piece that moves, interior needle installation piece that moves, outer needle that moves, interior needle installation piece and the needle spring of rolling up, go up fixing base, lower fixing base fixed connection an organic whole and fixed connection coiler's rotation axis, go up fixing base, the inner chamber installation outer needle installation piece that moves of fixing base down, interior needle installation piece that moves, outer needle installation piece that moves is misplaced, outer needle installation piece front end fixed mounting that moves outward, interior needle installation piece front end fixed mounting that moves, interior needle installation piece front end fixed mounting that moves, outer needle that moves interior needle is fixed mounting in the interior needle that moves, interior needle installation piece top is equipped with the lug, interior needle spring of rolling up is installed between needle spring drive upper lug from last fixing base, outer needle installation piece below is equipped with down the lug, outer needle spring of rolling up is installed down between needle spring and the fixing base down in the drive of needle spring is followed down.
As a preferable scheme of the invention, the outer moving needle mounting block and the inner moving needle mounting block are sleeved with the ball guide sleeve for guiding.
As a preferable scheme of the invention, the elastic sheet is arranged in the outer fixed needle, and the elastic sheet drives the inner fixed needle to elastically clamp the isolating film of the battery cell.
As a preferable scheme of the invention, the front ends of the outer movable needle, the outer fixed needle and the inner movable needle are inserted into a front support seat of the winding needle.
As a preferred scheme of the invention, the automatic needle shifting device further comprises a needle shifting ring assembly, wherein the needle shifting ring assembly comprises a needle shifting ring fixing seat, a needle shifting ring, a baffle plate, a cam bearing, a linear bearing and a guide rod, the needle shifting ring fixing seat is fixedly sleeved on a rotating shaft, the front end of the needle shifting ring fixing seat is provided with a plurality of guide rods, the baffle plate is arranged at the front end of the guide rod, the linear bearing is arranged in the needle shifting ring, the linear bearing is sleeved on the guide rod, the needle shifting ring is positioned between the needle shifting ring fixing seat and the baffle plate, the cam bearing is respectively arranged above and below the needle shifting ring, when the needle shifting ring moves backwards along the guide rod, an upper cam shaft is pressed and moves downwards, a lower cam shaft is pressed and moves upwards, and an outer moving needle and an inner moving needle move accordingly.
As a preferable scheme of the invention, the front end of the guide rod is sleeved with the misplug spring, and the misplug spring is positioned between the misplug ring and the baffle plate.
As a preferable scheme of the invention, a plurality of guide rods are circumferentially distributed around the central shaft of the staggered needle ring fixing seat at equal angles.
As a preferable scheme of the invention, when the misplug ring assembly is positioned at the winding station, the winding driving block presses the front end face of the misplug ring to move backwards, and when the misplug ring assembly is positioned at the needle drawing and discharging station, the drawing driving block presses the rear end face of the misplug ring to move forwards.
The misplacement winding needle cell winding method of the square lithium battery flaking winder adopts the misplacement winding needle structure to wind the cell.
The invention has the beneficial effects that: under the normal state, the upper lug is driven by the winding needle spring to extend from the upper fixing seat, the lower lug is driven by the winding needle spring to extend from the lower fixing seat, the inner moving needle and the inner moving needle are in a good open state so as to facilitate the penetration of the diaphragm, when the rotating shaft needs to rotate to wind out the battery core, the upper lug and the lower lug are pressed into the inner side of the fixing seat, the upper lug and the lower lug move in opposite directions, the inner moving needle moves inwards to press the inner moving needle so as to clamp the diaphragm, the outer moving needle moves outwards to open the datum internal dimension when keeping the battery core, after winding is finished, the upper lug and the lower lug reset the inner moving needle, the inner moving needle opens and simultaneously the outer moving needle retracts to facilitate needle drawing, the dislocation winding needle has the advantages of convenience in penetrating the diaphragm, stability in clamping the diaphragm, convenience in needle drawing and the like.
Drawings
FIG. 1 is a perspective view of the present invention when a separator is wound;
FIG. 2 is an exploded view of the offset needle structure of the present invention;
FIG. 3 is a front view of the misplaced needle roller structure of the present invention with the components exploded;
FIG. 4 is a perspective view of the inner moving needle mounting block of the present invention with the inner moving needle mated;
FIG. 5 is a cross-sectional view of the structure of the outer moving needle covered with the inner moving needle of the present invention;
FIG. 6 is a perspective view of the miss ring assembly of the present invention;
FIG. 7 is an exploded view of the miss ring assembly of the present invention;
FIG. 8 is a schematic view showing the structure of the upper and lower bumps extending when the misplaced needle ring of the present invention is advanced;
FIG. 9 is a schematic diagram of the structure in which the upper bump and the lower bump are pressed in when the misplaced needle ring of the present invention moves backward;
FIG. 10 is a schematic illustration of the structure of the offset needle of the present invention at various stations.
Detailed Description
The following describes the embodiments of the present invention further with reference to the accompanying drawings:
in the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the positions or elements referred to must have specific directions, be configured and operated in specific directions, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art.
As shown in fig. 1 to 5, the dislocation winding needle structure of the square lithium battery sheet-making winding machine comprises an upper fixing seat 1, a lower fixing seat 2, an outer moving needle mounting block 3, an inner moving needle mounting block 4, an outer moving needle 5, an inner moving needle 6, an outer fixed needle 7, an inner moving needle 8 and a winding needle spring 9, wherein the upper fixing seat 1 and the lower fixing seat 2 are fixedly connected into a whole and fixedly connected with a rotating shaft 10 of the winding machine, when the rotating shaft 10 rotates, the upper fixing seat 1 and the lower fixing seat 2 are carried by the coiling core synchronously, an outer moving needle mounting block 3 and an inner moving needle mounting block 4 are mounted in the inner cavities of the upper fixing seat 1 and the lower fixing seat 2, the outer moving needle mounting block 3 and the inner moving needle mounting block 4 are dislocated to avoid collision when the outer moving needle mounting block 3 and the inner moving needle mounting block 4, the outer moving needle 5 is fixedly mounted at the front end of the outer moving needle mounting block 3, the inner moving needle 6 is fixedly mounted at the front end of the inner moving needle mounting block 4, the outer moving needle 5 is coated with the inner moving needle 6, the outer fixed needle 5 is fixedly arranged at the front end of the lower fixed seat 2, the inner fixed needle 6 is fixedly arranged in the outer fixed needle 5, an upper protruding block 41 is arranged above the inner moving needle mounting block 4, a rolling needle spring 9 is arranged between the inner moving needle mounting block 4 and the lower fixed seat 2, a spring plate is arranged in the lower fixed seat 2, one end of the rolling needle spring 9 at the inner moving needle mounting block 4 is inserted into the inner moving needle mounting block 4 against the spring plate, therefore, the rolling needle spring 9 at the inner moving needle mounting block 4 drives the upper protruding block 41 to extend out from the upper fixed seat 1, a lower protruding block 31 is arranged below the outer moving needle mounting block 3, the rolling needle spring 9 is arranged between the outer moving needle mounting block 3 and the upper fixed seat 1, the spring plate is arranged in the upper fixed seat 1, one end of the rolling needle spring 9 at the outer moving needle mounting block 3 is inserted into the outer moving needle mounting block 3 against the other end of the spring plate, the needle winding spring 9 at the movable needle mounting block 3 drives the lower protruding block 31 to extend out of the lower fixing seat 2.
Specifically, in order to better guide the moving position accuracy of the outer moving needle mounting block 3 and the inner moving needle mounting block 4, the ball guide sleeve 10 for guiding is sleeved in the outer moving needle mounting block 3 and the inner moving needle mounting block 4.
Specifically, the elastic sheet 11 is installed inside the outer fixed needle 5, the elastic sheet 11 drives the inner fixed needle to elastically clamp the diaphragm 14 of the battery cell, the diaphragm 14 is prevented from being damaged due to too tight clamping, in addition, the outer movable needle 5, the outer fixed needle 7 and the front end of the inner movable needle 6 are inserted into the front support seat 12 of the winding needle, the front support seat 12 of the winding needle is supported in an auxiliary mode, the outer movable needle 5, the outer fixed needle 7 and the inner movable needle 6 can stably rotate to wind the battery cell, the inner movable needle 6 can be better kept in a fixed compression state to clamp the diaphragm, when the outer movable needle 5 moves outwards to stretch, the outer movable needle 5 and the outer fixed needle 7 keep the reference inner size when the battery cell is wound, the outer movable needle 5 is retracted after winding is finished, and the gap between the outer movable needle 5 and the inner periphery of the battery cell is enlarged, so that the battery cell is convenient to take out.
The misplacement needle winding structure of the square lithium battery sheet-making winder as shown in fig. 6 and 7 further comprises a misplacement needle ring assembly 13, wherein the misplacement needle ring assembly 13 comprises a misplacement needle ring fixing seat 131, misplacement needle rings 132, a baffle plate 133, a cam bearing 134, a linear bearing 135 and a guide rod 136, the misplacement needle ring fixing seat 131 is fixedly sleeved on the rotary shaft 10, a plurality of guide rods 136 are mounted at the front end of the misplacement needle ring fixing seat 131, the guide rods 136 are circumferentially distributed around the central shaft of the misplacement needle ring fixing seat at equal angles, the baffle plate 133 is mounted at the front end of the guide rod 136, the linear bearing 135 is mounted in the misplacement needle ring 132, the linear bearing 135 is sleeved on the guide rod 136, the misplacement needle ring 132 is positioned between the misplacement needle ring fixing seat 131 and the baffle plate 133, the misplacement needle ring fixing seat 131, the misplacement needle ring 132 and the baffle plate 133 are hollow and are arranged so that when the upper fixing seat 1 and the lower fixing seat 2 are connected with the rotary shaft 10, the upper fixing seat 1 and the lower fixing seat 2 are positioned at the center of the misplacement needle ring assembly 13, the cam bearing 134 is respectively mounted below the misplacement needle ring 132, in addition, the front end of the guide rod is sleeved with misplacement needle spring 137, and misplacement springs 137 are positioned between the misplacement needle rings 132 and the baffle plates 133.
As shown in fig. 8 to 10, the winding needle area of the existing winding machine has 3 stations, namely a winding station a, a final rubberizing station B and a needle drawing and discharging station C, the procedure to be completed by the winding station a is to form a winding cell, the procedure to be completed by the final rubberizing station B is to seal the tail of the rubberizing paper to prevent the cell from being scattered, the procedure to be completed by the needle drawing and discharging station C is to draw the needle to discharge the cell from the winding needle area, the 3 stations are clamped at 120 degrees, the corresponding procedure actions are the prior art, the specific action flow is not tired, and in the invention, it is emphasized how the misplaced winding needle structure acts when the misplaced winding needle structure is used in the corresponding station, when the winding needle and misplaced needle ring assembly is positioned in the winding station a, because the initial states of the inner moving needle 6 and the inner moving needle 8 are always opened, the diaphragm firstly penetrates between the inner moving needle 6 and the inner moving needle 8, then the winding driving block 15 presses the front end face of the misplug ring to move backwards, the upper cam bearing 134 presses the upper convex block 41 to move downwards, the lower cam bearing 134 presses the lower convex block 31 to move upwards, the inner moving needle 6 moves inwards to press the inner moving needle so as to clamp the diaphragm, the outer moving needle 5 moves outwards to open and keep the reference inner dimension when the battery core is rolled, after the battery core is wound, the winding needle and the misplug ring assembly rotate to the needle drawing unloading station C, the drawing driving block 16 presses the rear end face of the misplug ring to move forwards, and the upper convex block and the lower convex block reset the inner moving needle and the inner moving needle to open so as to facilitate needle drawing.
The misplacement winding needle cell winding method of the square lithium battery flaking winder adopts the misplacement winding needle structure to wind the cell.
While the invention has been described in detail in connection with specific preferred embodiments, it is not to be construed as limited to the specific embodiments of the invention, but rather as a matter of course, it will be understood by those skilled in the art that various modifications and substitutions can be made without departing from the spirit and scope of the invention.
Claims (8)
1. Needle structure is rolled up in dislocation of square lithium cell film-making coiler, its characterized in that: comprises an upper fixed seat, a lower fixed seat, an outer moving needle mounting block, an inner moving needle mounting block, an outer moving needle, an inner moving needle, an outer fixed needle, an inner fixed needle, a needle winding spring and a staggered needle ring component, wherein the upper fixed seat and the lower fixed seat are fixedly connected into a whole and fixedly connected with a rotating shaft of a winding machine, the inner cavities of the upper fixed seat and the lower fixed seat are provided with the outer moving needle mounting block, the inner moving needle mounting block and the inner moving needle mounting block are staggered, the front end of the outer moving needle mounting block is fixedly provided with the outer moving needle, the front end of the inner moving needle mounting block is fixedly provided with the inner moving needle, the front end of the lower fixed seat is fixedly provided with the outer fixed needle, the inner fixed needle is fixedly provided with the inner fixed needle, an upper protruding block is arranged above the inner moving needle mounting block, the needle winding spring is arranged between the inner moving needle mounting block and the lower fixed seat, one end of the needle winding spring at the inner moving needle mounting block is propped against the other end of the spring plate and is inserted into the inner moving needle mounting block, the needle winding spring drives the upper protruding block to extend from the upper fixing seat, the lower protruding block is arranged below the outer moving needle mounting block, the needle winding spring is arranged between the outer moving needle mounting block and the upper fixing seat, the lower protruding block is driven by the needle winding spring to extend from the lower fixing seat, the needle-staggering ring assembly comprises a needle-staggering ring fixing seat, a needle-staggering ring, a baffle plate, a cam bearing, a linear bearing and a guide rod, the needle-staggering ring fixing seat is fixedly sleeved on a rotating shaft, a plurality of guide rods are arranged at the front end of the needle-staggering ring fixing seat, the baffle plate is arranged at the front end of the guide rod, the linear bearing is arranged at the inner part of the needle-staggering ring, the linear bearing is sleeved on the guide rod, the needle-staggering ring is positioned between the needle-staggering ring fixing seat and the baffle plate, the cam bearing is respectively arranged at the upper part and the lower part of the needle-staggering ring, when the needle-staggering ring moves backwards along the guide rod, the cam shaft above presses the upper protruding block to move downwards, and the cam shaft below presses the lower protruding block to move upwards, the needle-staggering ring, the inner moving needle moves along with the inner moving needle.
2. The misplacement winding needle structure of a square lithium battery sheet-making winding machine as claimed in claim 1, wherein: the ball guide sleeve for guiding is sleeved in the outer moving needle mounting block and the inner moving needle mounting block.
3. The misplacement winding needle structure of a square lithium battery sheet-making winding machine as claimed in claim 1, wherein: and an elastic sheet is arranged in the outer fixed needle and drives the inner fixed needle to elastically clamp the isolating film of the battery cell.
4. The misplacement winding needle structure of a square lithium battery sheet-making winding machine as claimed in claim 1, wherein: the front end of the outer movable needle, the front end of the outer fixed needle and the front end of the inner movable needle are inserted into the front support seat of the winding needle.
5. The misplacement winding needle structure of a square lithium battery sheet-making winding machine as claimed in claim 1, wherein: the front end of the guide rod is sleeved with a needle misplacing spring, and the needle misplacing spring is positioned between the needle misplacing ring and the baffle plate.
6. The misplacement winding needle structure of a square lithium battery sheet-making winding machine as claimed in claim 1, wherein: the guide rods are circumferentially distributed around the central shaft of the staggered needle ring fixing seat at equal angles.
7. The misplacement winding needle structure of a square lithium battery sheet-making winding machine as claimed in claim 1, wherein: when the misplug ring assembly is positioned at the winding station, the winding driving block presses the front end face of the misplug ring to move backwards, and when the misplug ring assembly is positioned at the needle drawing and discharging station, the drawing driving block presses the rear end face of the misplug ring to move forwards.
8. A dislocation winding needle cell winding method of a square lithium battery flaking winding machine is characterized by comprising the following steps of: the use of the dislocated winding pin structure of any one of claims 1 to 7 for cell winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010398763.1A CN111477974B (en) | 2020-05-12 | 2020-05-12 | Misplacement winding needle structure of sheet-making winding machine and electric core winding method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010398763.1A CN111477974B (en) | 2020-05-12 | 2020-05-12 | Misplacement winding needle structure of sheet-making winding machine and electric core winding method thereof |
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| Publication Number | Publication Date |
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| CN111477974A CN111477974A (en) | 2020-07-31 |
| CN111477974B true CN111477974B (en) | 2023-06-13 |
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| CN202010398763.1A Active CN111477974B (en) | 2020-05-12 | 2020-05-12 | Misplacement winding needle structure of sheet-making winding machine and electric core winding method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114284573B (en) * | 2022-03-04 | 2022-06-28 | 东莞市泽源机械有限公司 | Roll up needle mechanism and lithium cell coiling equipment |
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| CN212011156U (en) * | 2020-05-12 | 2020-11-24 | 东莞泓宇智能装备有限公司 | Dislocation winding needle structure of square lithium battery sheet-making winding machine |
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| CN102270771A (en) * | 2010-06-03 | 2011-12-07 | 新科实业有限公司 | Automatic winding device for battery core |
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| CN201060905Y (en) * | 2007-07-13 | 2008-05-14 | 深圳市高威仕科技有限公司 | Battery core winding needle and its fixation structure |
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| CN201838668U (en) * | 2010-09-26 | 2011-05-18 | 深圳市吉阳自动化科技有限公司 | Winding front supporting device and battery core winding system |
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