CN220272548U - Winding machine for correcting deviation of pole piece end - Google Patents
Winding machine for correcting deviation of pole piece end Download PDFInfo
- Publication number
- CN220272548U CN220272548U CN202321376671.9U CN202321376671U CN220272548U CN 220272548 U CN220272548 U CN 220272548U CN 202321376671 U CN202321376671 U CN 202321376671U CN 220272548 U CN220272548 U CN 220272548U
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- China
- Prior art keywords
- roller
- pole piece
- pole
- transmission mechanism
- positive
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- 238000004804 winding Methods 0.000 title claims abstract description 27
- 230000005540 biological transmission Effects 0.000 claims abstract description 33
- 238000005520 cutting process Methods 0.000 claims description 12
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 5
- 229910052744 lithium Inorganic materials 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
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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
-
- 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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- Battery Electrode And Active Subsutance (AREA)
Abstract
The utility model relates to a winding machine for correcting deviation of an end part of a pole piece, which comprises a negative pole piece feeding clamping roller, a positive pole transmission mechanism, a negative pole transmission mechanism, a pole piece copying roller and a winding needle, wherein the positive pole transmission mechanism transmits positive pole pieces to the positive pole piece feeding clamping roller, a first diaphragm is transmitted to the positive pole piece feeding clamping roller, the negative pole transmission mechanism is transmitted to the negative pole piece feeding clamping roller, a second diaphragm is transmitted to the negative pole piece feeding clamping roller, after the positive pole pieces, the first diaphragm, the negative pole pieces and the second diaphragm are transmitted to the pole piece copying roller, the winding needle winds the positive pole pieces to form an electric core, and the structural sizes of the positive pole transmission mechanism and the negative pole transmission mechanism are identical. According to the winding machine for correcting the pole piece end, the tension unit is used for compressing the cut pole piece end, so that tension is kept between the pole piece end and the correction unit, and correction is performed on the pole piece end through the correction unit, so that the tail of the wound battery cell cannot deviate, and the tail covering misplacement amount h of the winding core is within the precision range.
Description
Technical Field
The utility model relates to the technical field of lithium battery production, in particular to a winding machine for correcting deviation of an end part of a pole piece.
Background
With the widespread use of digital products such as mobile phones, notebook computers, etc., lithium batteries are widely used in such products with excellent performance, and are gradually developed toward other application fields. The wide application of lithium batteries has promoted the development of lithium battery manufacturing industries.
Currently, in the lithium battery manufacturing industry, square cells are wound by winding equipment. And (3) after the strip-shaped thin materials such as the isolating film or the pole piece are placed and rolled by an unreeling device at the unreeling station, conveying the strip-shaped thin materials to a reeling station, and rolling the pole piece and the isolating film which are stacked in a certain sequence by a reeling needle in an elliptic shape at the reeling station, and then cutting and rubberizing to form the bare cell. After unreeling a strip-shaped thin material such as an isolating film or a pole piece on an automatic winder, conveying the strip-shaped thin material to a winding needle to start winding, cutting the pole piece after winding, and carrying out a non-tension state on the cut pole piece, so that when the winding is finished on the pole piece, the cut end part is deflected, the tail part of a winding core is covered with a misplacement amount h exceeding an accuracy range (shown in fig. 1), and the battery core is required to be scrapped.
Disclosure of Invention
The utility model mainly aims to provide a winding machine for correcting the deviation of the end part of a pole piece, so as to solve the technical problem and correct the deviation of the tail part of the pole piece.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a winder that pole piece tip rectified, includes that negative pole goes into piece pinch roller, positive pole go into piece pinch roller, positive pole transmission mechanism, negative pole transmission mechanism, pole piece profiling roller and book needle, positive pole transmission mechanism will anodal piece transmission extremely positive pole goes into on the piece pinch roller, first diaphragm transmission extremely positive pole goes into on the piece pinch roller, negative pole transmission mechanism transmission extremely negative pole goes into on the piece pinch roller, second diaphragm transmission extremely negative pole goes into on the piece pinch roller, positive pole piece, first diaphragm, negative pole piece and second diaphragm transmission extremely back on the pole profiling roller, book needle is with its coiling formation electricity core, positive pole transmission mechanism with negative pole transmission mechanism's size is the same.
As an optimized technical scheme, the positive electrode transmission mechanism comprises a positive electrode cutting unit, a positive electrode tension unit and a positive electrode deviation rectifying unit, wherein the positive electrode tension unit is arranged on one side of the positive electrode cutting unit, and the positive electrode deviation rectifying unit is arranged close to the positive electrode tension unit.
As a preferable technical scheme, the positive electrode tension unit comprises a fixed roller structure and a compression roller structure, and the compression roller structure moves relative to the fixed roller structure.
As a preferable technical scheme, the press roller structure comprises a guide structure, a driving structure, a press roller seat and a press roller, wherein the press roller is arranged in the press roller seat, and the driving structure drives the press roller seat to move along the guide structure.
As a preferable technical scheme, the driving structure is a cylinder.
As a preferred technical solution, the guiding structure is a guide rail or a guide pillar.
As an optimized technical scheme, the fixed roller structure comprises a fixed roller seat and a fixed roller, and the fixed roller is arranged on the fixed roller seat.
The utility model has the beneficial effects that: according to the winding machine for correcting the pole piece end, the tension unit is used for compressing the cut pole piece end, so that tension is kept between the pole piece end and the correction unit, and correction is performed on the pole piece end through the correction unit, so that the tail of the wound battery cell cannot deviate, and the tail covering misplacement amount h of the winding core is within the precision range.
Drawings
Fig. 1 is a schematic structural diagram of a battery cell after winding a winding needle in the background art;
FIG. 2 is a schematic structural diagram of a winding machine for correcting the deviation of the end of a pole piece according to the present utility model;
fig. 3 is a schematic structural view of a positive electrode tension unit according to the present utility model.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
As shown in fig. 2, a winding machine for correcting deviation of a pole piece end part comprises a negative pole feeding clamping roller 4, a positive pole feeding clamping roller 3, a positive pole transmission mechanism 1, a negative pole transmission mechanism 2, a pole piece profiling roller 5 and a winding needle 6, wherein the positive pole transmission mechanism 1 is used for transmitting a positive pole piece a to the positive pole feeding clamping roller 3, a first diaphragm b is transmitted to the positive pole feeding clamping roller 3, the negative pole transmission mechanism 2 is transmitted to the negative pole feeding clamping roller 4, a second diaphragm d is transmitted to the negative pole feeding clamping roller 4, and after the positive pole piece a, the first diaphragm b, the negative pole piece c and the second diaphragm d are transmitted to the pole piece profiling roller 5, the winding needle 5 winds the positive pole piece a, the first diaphragm b, the negative pole piece c and the second diaphragm d transmitted from the pole piece profiling roller 5 to form a battery core, and the structural sizes of the positive pole transmission mechanism 1 and the negative pole transmission mechanism 2 are identical.
Specifically, the positive electrode transmission mechanism 1 comprises a positive electrode cutting unit 11, a positive electrode tension unit 12 and a positive electrode deviation rectifying unit 13, wherein the positive electrode tension unit 12 is arranged on one side of the positive electrode cutting unit 11, the positive electrode deviation rectifying unit 13 is close to the positive electrode tension unit 12, so that after the positive electrode sheet a is cut by the positive electrode sheet cutting unit 11, the positive electrode tension unit 12 can tightly press the end part of the positive electrode sheet a, the positive electrode deviation rectifying unit 13 can rectify the end part of the positive electrode sheet a, the tail part of a wound battery core is guaranteed not to deflect, and the tail part of the wound battery core is covered with a misplacement h within the precision range.
As shown in fig. 3, the positive electrode tension unit 12 includes a fixed roller structure 122 and a pressing roller structure 121, and the pressing roller structure 121 moves relative to the fixed roller structure 122. The press roller structure 121 includes a guide structure 125, a driving structure 126, a press roller base 123 and a press roller 124, wherein the press roller 124 is installed in the press roller base 123, and the driving structure 126 drives the press roller base 123 to move along the guide structure 125. The drive structure 126 is a cylinder or motor lead screw drive structure. The guide structure 125 is a rail or a column structure. The fixed roller structure 122 comprises a fixed roller seat 127 and a fixed roller 128, the fixed roller 128 is arranged on the fixed roller seat 127, and the fixed roller 128 is abutted against the press roller 124, so that the positive plate a is pressed.
With continued reference to fig. 2, the negative electrode transmission mechanism 2 includes a negative electrode cutting unit 21, a negative electrode tension unit 22, and a negative electrode deviation rectifying unit 23, where the negative electrode tension unit 22 is disposed on one side of the negative electrode cutting unit 21, and the negative electrode deviation rectifying unit 23 is disposed near the negative electrode tension unit 22, so that after the negative electrode sheet a is cut by the negative electrode sheet cutting unit 21, the negative electrode tension unit 22 can compress the end of the negative electrode sheet a, so that the negative electrode deviation rectifying unit 23 can rectify the end of the negative electrode sheet a, and it is ensured that the tail of the wound battery core does not generate a deflection, and the tail covering misalignment h of the winding core is within the precision range. The negative electrode tension unit 22 has the same structural dimensions as the positive electrode tension unit 21.
The above embodiments are only preferred examples of the present utility model and are not intended to limit the scope of the present utility model, so that all equivalent changes or modifications of the structure, characteristics and principles described in the claims are included in the scope of the present utility model.
Claims (7)
1. The utility model provides a winder that pole piece tip rectified, its characterized in that, including negative pole income piece pinch roller, positive pole transmission mechanism, negative pole transmission mechanism, pole piece profiling roller and book needle, positive pole transmission mechanism will anodal piece transmit to on the positive pole income piece pinch roller, first diaphragm transmit to on the positive pole income piece pinch roller, negative pole transmission mechanism transmit to on the negative pole income piece pinch roller, the second diaphragm transmit to on the negative pole income piece pinch roller, positive pole piece, first diaphragm, negative pole piece and second diaphragm transmit to after on the pole profiling roller, book needle is convoluteed it and is formed the electricity core, positive pole transmission mechanism with negative pole transmission mechanism's size is the same.
2. The winding machine for correcting deviation of an end of a pole piece according to claim 1, wherein the positive electrode transmission mechanism comprises a positive electrode cutting unit, a positive electrode tension unit and a positive electrode correcting unit, the positive electrode tension unit is arranged on one side of the positive electrode cutting unit, and the positive electrode correcting unit is arranged close to the positive electrode tension unit.
3. The pole piece end deviation rectifying winder of claim 2, wherein the positive tension unit comprises a fixed roller structure and a compression roller structure, and the compression roller structure moves relative to the fixed roller structure.
4. A pole piece end deviation correcting winding machine according to claim 3, wherein the press roller structure comprises a guide structure, a driving structure, a press roller seat and a press roller, the press roller is installed in the press roller seat, and the driving structure drives the press roller seat to move along the guide structure.
5. The pole piece end deviation correcting winder of claim 4, wherein the driving structure is a cylinder.
6. The pole piece end deviation correcting winder of claim 4, wherein the guide structure is a guide rail or a guide post.
7. The winding machine for correcting deviation of end portions of pole pieces according to claim 5 or 6, wherein the fixed roller structure comprises a fixed roller seat and a fixed roller, and the fixed roller is mounted on the fixed roller seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321376671.9U CN220272548U (en) | 2023-05-31 | 2023-05-31 | Winding machine for correcting deviation of pole piece end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321376671.9U CN220272548U (en) | 2023-05-31 | 2023-05-31 | Winding machine for correcting deviation of pole piece end |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220272548U true CN220272548U (en) | 2023-12-29 |
Family
ID=89317674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321376671.9U Active CN220272548U (en) | 2023-05-31 | 2023-05-31 | Winding machine for correcting deviation of pole piece end |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220272548U (en) |
-
2023
- 2023-05-31 CN CN202321376671.9U patent/CN220272548U/en active Active
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