CN219683669U - Cylindrical battery tab bending mechanism and winding device - Google Patents
Cylindrical battery tab bending mechanism and winding device Download PDFInfo
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- CN219683669U CN219683669U CN202320009549.1U CN202320009549U CN219683669U CN 219683669 U CN219683669 U CN 219683669U CN 202320009549 U CN202320009549 U CN 202320009549U CN 219683669 U CN219683669 U CN 219683669U
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- 238000005452 bending Methods 0.000 title claims abstract description 172
- 238000004804 winding Methods 0.000 title claims abstract description 26
- 238000009499 grossing Methods 0.000 claims abstract description 25
- 230000003014 reinforcing effect Effects 0.000 claims description 10
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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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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Abstract
The utility model relates to a cylindrical battery tab bending mechanism and a winding device, wherein the cylindrical battery tab bending mechanism comprises a bending roller, at least one bending piece is arranged on the bending roller, the bending piece is provided with a smoothing plane, the smoothing plane is used for contacting the tab to bend the tab towards a preset direction, the bending piece is formed into a ring shape extending along the circumferential direction of the bending roller, and the smoothing plane is formed into an inclined plane extending obliquely along the circumferential direction of the bending piece and the circumferential surface of the bending roller. According to the utility model, the two ends of the cylindrical battery can be bent, and simultaneously the cylindrical battery can be flattened and shaped, so that the outer side of the tab is prevented from being deformed outwards, and the yield of the cylindrical battery is improved.
Description
Technical Field
The utility model relates to the field of battery production equipment, in particular to a cylindrical battery tab bending mechanism and a winding device.
Background
In the manufacturing process of the cylindrical battery, the positive plate, the negative plate and the diaphragm are sequentially laminated and then wound to form the battery core. During winding, the tab on the pole piece is easy to turn over, fold and other adverse phenomena, and the tab is damaged, so that the tab needs to be bent before winding so as to ensure the smooth proceeding of the winding process. The existing automatic bending mechanism can only simply bend the tab, and cannot further smooth and reshape the bent tab, so that the shape consistency of the bent tab is low, and the winding quality of the battery cell is affected.
Disclosure of Invention
The utility model aims to provide a cylindrical battery tab bending mechanism and a winding device, which can bend two ends of a cylindrical battery, simultaneously knead and shape the two ends of the cylindrical battery, avoid outward deformation of the outer sides of the tabs and improve the yield of the cylindrical battery.
As one embodiment, the utility model provides a cylindrical battery tab bending mechanism, which comprises a bending roller, wherein at least one bending piece is arranged on the bending roller, the bending piece is provided with a smoothing plane, the smoothing plane is used for contacting the tab to bend the tab in a preset direction, the bending piece is formed into an annular shape extending along the circumferential direction of the bending roller, and the smoothing plane is formed into an inclined plane extending obliquely along the outer circumference of the bending piece to the circumferential surface of the bending roller.
In the above technical scheme, during the processing of battery cell winding, through the battery cell that is being close to the winding with the bending roller, can make the piece of bending contact utmost point ear to make the utmost point ear bend to the direction of predetermineeing, make utmost point ear form into the shape of predetermineeing, simultaneously smooth the plane shape along the periphery of the piece of bending the inclined plane that the global slope of bending roller extends can lead to the utmost point ear after bending, thereby smoothes the utmost point ear, makes utmost point ear remain level, improves the uniformity of utmost point ear shape, and then improves the quality of battery cell winding.
Further, the smoothing surface is arranged on one side, close to the bending roller, of the bending piece.
In the technical scheme, the smoothing surface is arranged on one side, close to the bending roller, of the bending piece, the electrode lug can be bent towards the direction of the battery core main body, the outer side of the electrode lug is prevented from being deformed outwards, and the yield of the cylindrical battery is improved.
Further, the number of the bending parts is two, and the two bending parts are respectively arranged at two ends of the bending roller.
In the technical scheme, the two bending pieces are matched, so that the positive electrode lug and the negative electrode lug of the battery cell can be respectively bent and smoothed, and the winding quality of the battery cell is improved while the bending efficiency is improved.
Further, the bending roller bending device comprises a driving assembly for driving the bending roller to move, the driving assembly comprises a driving piece, a movable seat, a connecting piece, a supporting rod and a connecting rod, the output end of the driving piece is connected with the movable seat, one end of the connecting rod is rotationally connected with the movable seat, the other end of the connecting rod is rotationally connected with the connecting piece, one end of the connecting piece is connected with the bending roller, and the other end of the connecting piece is movably connected with the supporting rod.
In the technical scheme, the driving assembly can drive the bending roller to move, so that the bending roller is controlled to be close to or far away from a product, and the tab is bent or stopped to be bent. When the bending roller is particularly used, the driving piece can drive the movable seat to linearly move, and the connecting piece is driven to rotate around the supporting rod through the connecting rod, so that the bending roller is close to or far away from a product.
Further, the number of the connecting pieces is two, the two connecting pieces are oppositely arranged and are respectively connected to the two ends of the bending roller, and a reinforcing rod is arranged between the two connecting pieces.
In the technical scheme, the connecting pieces are arranged in two, so that the moving stability of the bending rod can be improved, meanwhile, the precision of the position of the bending roller is guaranteed, the strength of the structure can be further improved through the reinforcing rod, and the bending and smoothing stability and quality are improved.
As another embodiment, the utility model provides a cylindrical battery tab bending mechanism, which comprises a bending roller, wherein at least one bending piece is arranged on the bending roller, the bending piece is provided with a smoothing plane, the smoothing plane is used for contacting the tab to bend the tab in a preset direction, the smoothing plane is arranged at one end of the bending piece, and the smoothing plane is formed into an inclined plane or an arc-shaped surface with curvature gradually reduced from one end to the other end.
In the above technical scheme, during the battery cell winding processing, through the battery cell that is being close to the winding with the roller of bending, can make the piece of bending contact utmost point ear to make the utmost point ear bend to the direction of predetermineeing, make the utmost point ear form into the shape of predetermineeing, simultaneously smooth the plane surface and form from one end to the inclined plane or the arcwall face that the other end camber reduces gradually, can lead the utmost point ear after bending, thereby smooth the utmost point ear, make the utmost point ear remain level, improve the uniformity of utmost point ear shape, and then improve the quality of battery cell winding.
Further, the number of the bending parts is two, and the two bending parts are respectively arranged at two ends of the bending roller.
In the technical scheme, the two bending pieces are matched, so that the positive electrode lug and the negative electrode lug of the battery cell can be respectively bent and smoothed, and the winding quality of the battery cell is improved while the bending efficiency is improved.
Further, the bending roller bending device comprises a driving assembly for driving the bending roller to move, the driving assembly comprises a driving piece, a movable seat, a connecting piece, a supporting rod and a connecting rod, the output end of the driving piece is connected with the movable seat, one end of the connecting rod is rotationally connected with the movable seat, the other end of the connecting rod is rotationally connected with the connecting piece, one end of the connecting piece is connected with the bending roller, and the other end of the connecting piece is movably connected with the supporting rod.
In the technical scheme, the driving assembly can drive the bending roller to move, so that the bending roller is controlled to be close to or far away from a product, and the tab is bent or stopped to be bent. When the bending roller is particularly used, the driving piece can drive the movable seat to linearly move, and the connecting piece is driven to rotate around the supporting rod through the connecting rod, so that the bending roller is close to or far away from a product.
Further, the number of the connecting pieces is two, the two connecting pieces are oppositely arranged and are respectively connected to the two ends of the bending roller, and a reinforcing rod is arranged between the two connecting pieces.
In the technical scheme, the connecting pieces are arranged in two, so that the moving stability of the bending rod can be improved, meanwhile, the precision of the position of the bending roller is guaranteed, the strength of the structure can be further improved through the reinforcing rod, and the bending and smoothing stability and quality are improved.
The utility model also provides a winding device which comprises the cylindrical battery tab bending mechanism.
Compared with the prior art, the utility model has the beneficial effects that: when the battery cell is wound, the bending roller is close to the battery cell in winding, so that the bending piece can be in contact with the tab, the tab is bent towards the preset direction, the tab is formed into the preset shape, meanwhile, the bent tab can be guided by the smoothing plane, the tab is smoothed, the tab is kept flat, the shape consistency of the tab is improved, and the winding quality of the battery cell is improved.
Drawings
Fig. 1 is a schematic structural diagram of a cylindrical battery tab bending mechanism according to a first embodiment of the present utility model.
Fig. 2 is a schematic structural view of a bending member according to a first embodiment of the present utility model.
Fig. 3 is a schematic structural diagram of a cylindrical battery tab bending mechanism according to a second embodiment of the present utility model.
Fig. 4 is a schematic structural view of a bending member according to a second embodiment of the present utility model.
Reference numerals illustrate:
bending roller 11, bending piece 12, smoothing surface 121, driving component 2, driving piece 21, movable seat 22, connecting piece 23, bracing piece 24, connecting rod 25, reinforcing rod 26.
Detailed Description
In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. The drawings illustrate preferred embodiments of the utility model. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
As shown in fig. 1 and 2, in the first embodiment of the present utility model, the cylindrical battery tab bending mechanism mainly includes a bending roller 11, and the bending roller 11 is configured to be movable so as to be close to or apart from the pole piece. The bending roller 11 is provided with a bending piece 12, the bending piece 12 is provided with a smoothing plane 121, and the smoothing plane 121 is used for contacting the tab so as to bend the tab towards a preset direction and smooth the bent tab. The bending tool 12 is formed in a ring shape extending in the circumferential direction of the bending roller 11, and the flat surface 121 is formed as a slope extending obliquely along the circumferential surface of the bending roller 11 in the outer circumferential direction of the bending tool 12. In specific implementation, the bending member 12 may be convexly arranged on the circumferential surface of the bending roller 11, or sleeved on the outer circumference of the bending roller 11.
In the above technical scheme, when the electric core is coiled and processed, through the electric core that is close to coiling with bending roller 11, can make the piece 12 of bending contact utmost point ear, make the utmost point ear buckle through the periphery extrusion utmost point ear of the piece 12 of bending, the utmost point ear is followed and is further buckled to the angle of predetermineeing by the smooth plane 121 afterwards, and the little one end of smooth plane 121 diameter can extrude the utmost point ear and smooth the utmost point ear after bending simultaneously, makes the utmost point ear remain level, improves the uniformity of utmost point ear shape, and then improves the quality that the electric core was coiled.
According to some embodiments of the present utility model, the smoothing plane 121 is disposed on a side of the bending member 12 near the bending roller 11, and when the bending member 12 contacts the tab, the tab can be bent toward the direction of the main body of the battery cell, so as to avoid outward deformation of the outer side of the tab, and improve the yield of the cylindrical battery. It will be appreciated that in other possible embodiments, both side surfaces of the bending member 12 may be formed as a stroking plane 121 to meet the bending requirements of different shape strips.
Referring to fig. 3 and 4, in the second embodiment of the present utility model, the bending mechanism for the cylindrical battery tab includes a bending roller 11, at least one bending member 12 is disposed on the bending roller 11, the bending member 12 has a flat surface 121, the flat surface 121 is used for contacting the tab to bend the tab in a preset direction, the flat surface 121 is disposed at one end of the bending member 12, and the flat surface 121 is formed as an inclined surface or an arc surface with gradually decreasing curvature from one end to the other end.
Illustratively, the bending member 12 may be disposed through the bending roller 11, and the smoothing surface 121 is disposed at one end of the bending member 12, where an extending direction of the smoothing surface 121 forms an included angle with an axial direction of the bending roller 11. During battery cell winding, the bending roller 11 is close to the battery cell in winding, so that the smoothing surface 121 contacts with the electrode lug at the end part of the battery cell, the electrode lug is bent to a preset angle along the gradually reduced curvature of the smoothing surface 121, and finally the electrode lug is smoothed by the end part of the smoothing surface 121, so that the electrode lug is kept smooth, the consistency of the shape of the electrode lug is improved, and the winding quality of the battery cell is improved.
In the above embodiment, the number of bending members 12 may be two, and the two bending members 12 are respectively disposed at both ends of the bending roller 11. According to the embodiment, the two bending pieces 12 are matched, so that the positive electrode lug and the negative electrode lug of the battery cell can be respectively bent and smoothed, the bending efficiency is improved, and meanwhile, the winding quality of the battery cell is improved.
In the above embodiment, the cylindrical battery tab bending mechanism of the present utility model further includes a driving assembly 2, where the driving assembly 2 is used to drive the bending roller 11 to move.
Specifically, the driving assembly 2 includes a driving member 21, a movable seat 22, a connecting member 23, a support rod 24, and a connecting rod 25. The driving member 21 may be a conventional linear driving device, for example, a servo motor, where an output end of the driving member 21 is connected to the movable seat 22, and can drive the movable seat 22 to reciprocate along a linear direction, one end of the connecting rod 25 is rotationally connected to the movable seat 22, the other end is rotationally connected to the connecting member 23, one end of the connecting member 23 is connected to the bending roller 11, the other end is movably connected to the over-supporting rod 24, and an axial direction of the supporting rod 24 is parallel to an axial direction of the bending roller 11. The driving piece 21 can drive the movable seat 22 to move, and the connecting piece 23 is driven by the connecting rod 25 to rotate around the supporting rod 24, so that the bending roller 11 is close to or far away from the product.
According to some embodiments of the present utility model, the number of the connecting members 23 is two, and the two connecting members 23 are disposed opposite to each other and connected to both ends of the bending roller 11. By setting the number of the connecting members 23 to two, the stability of the bending rod movement can be improved, and the accuracy of the position of the bending roller 11 can be ensured. It will be appreciated that in some possible embodiments the connection 23 may be one, which may also achieve the effect of driving the bending roller 11 in rotation and which may be cost effective.
According to some embodiments of the present utility model, a reinforcing rod 26 is disposed between the two connecting members 23, and two ends of the reinforcing rod 26 are respectively connected with the two connecting members 23, so as to bridge between the two connecting members 23, and by disposing the reinforcing rod 26, the strength of the structure can be further improved, so that the bending and flattening stability and quality are improved.
The utility model also provides a winding device which comprises the cylindrical battery tab bending mechanism.
In the description of the present utility model, it should be understood that the terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
While the utility model has been described in conjunction with the specific embodiments above, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art in light of the foregoing description. Accordingly, all such alternatives, modifications, and variations are included within the spirit and scope of the following claims.
Claims (10)
1. The utility model provides a cylindrical battery tab mechanism of bending, its characterized in that, including bending roller (11), be equipped with at least one piece of bending (12) on bending roller (11), piece of bending (12) have and smooth plane (121), smooth plane (121) are used for contacting the tab so that the tab is to predetermineeing the direction bending, piece of bending (12) are formed into the annular that extends along bending roller (11) circumference, smooth plane (121) are formed into along the periphery of piece of bending (12) the inclined plane that the global slope of bending roller (11) extends.
2. The cylindrical battery tab bending mechanism according to claim 1, wherein the smoothing surface (121) is provided on a side of the bending member (12) close to the bending roller (11).
3. The cylindrical battery tab bending mechanism according to claim 1, wherein the number of the bending members (12) is two, and the two bending members (12) are respectively arranged at two ends of the bending roller (11).
4. The cylindrical battery tab bending mechanism according to claim 1, further comprising a driving assembly (2) for driving the bending roller (11) to move, wherein the driving assembly (2) comprises a driving member (21), a movable seat (22), a connecting member (23), a supporting rod (24) and a connecting rod (25), an output end of the driving member (21) is connected to the movable seat (22), one end of the connecting rod (25) is rotatably connected with the movable seat (22), the other end of the connecting rod is rotatably connected with the connecting member (23), one end of the connecting member (23) is connected to the bending roller (11), and the other end of the connecting member is movably connected with the supporting rod (24).
5. The cylindrical battery tab bending mechanism according to claim 4, wherein two connecting pieces (23) are provided, the two connecting pieces (23) are oppositely arranged and are respectively connected to two ends of the bending roller (11), and a reinforcing rod (26) is arranged between the two connecting pieces (23).
6. The utility model provides a cylindrical battery tab mechanism of bending, its characterized in that, including bending roller (11), be equipped with at least one piece of bending (12) on bending roller (11), piece of bending (12) have and smooth plane (121), smooth plane (121) are used for contacting the tab so that the tab is bent to the direction of predetermineeing, smooth plane (121) are located the one end of piece of bending (12), smooth plane (121) are formed into inclined plane or arcwall face that reduces gradually from one end to other end camber.
7. The cylindrical battery tab bending mechanism according to claim 6, wherein the number of the bending members (12) is two, and the two bending members (12) are respectively arranged at two ends of the bending roller (11).
8. The cylindrical battery tab bending mechanism according to claim 6, further comprising a driving assembly (2) for driving the bending roller (11) to move, wherein the driving assembly (2) comprises a driving member (21), a movable seat (22), a connecting member (23), a supporting rod (24) and a connecting rod (25), an output end of the driving member (21) is connected to the movable seat (22), one end of the connecting rod (25) is rotatably connected with the movable seat (22), the other end of the connecting rod is rotatably connected with the connecting member (23), one end of the connecting member (23) is connected to the bending roller (11), and the other end of the connecting member is movably connected with the supporting rod (24).
9. The cylindrical battery tab bending mechanism according to claim 8, wherein two connecting pieces (23) are provided, the two connecting pieces (23) are oppositely arranged and are respectively connected to two ends of the bending roller (11), and a reinforcing rod (26) is arranged between the two connecting pieces (23).
10. A winding device comprising the cylindrical battery tab bending mechanism as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320009549.1U CN219683669U (en) | 2023-01-04 | 2023-01-04 | Cylindrical battery tab bending mechanism and winding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320009549.1U CN219683669U (en) | 2023-01-04 | 2023-01-04 | Cylindrical battery tab bending mechanism and winding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219683669U true CN219683669U (en) | 2023-09-15 |
Family
ID=87940151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320009549.1U Active CN219683669U (en) | 2023-01-04 | 2023-01-04 | Cylindrical battery tab bending mechanism and winding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219683669U (en) |
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2023
- 2023-01-04 CN CN202320009549.1U patent/CN219683669U/en active Active
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