CN219766427U - Can prevent roll-in device of fold broken tape after pole piece roll-in - Google Patents
Can prevent roll-in device of fold broken tape after pole piece roll-in Download PDFInfo
- Publication number
- CN219766427U CN219766427U CN202320985404.5U CN202320985404U CN219766427U CN 219766427 U CN219766427 U CN 219766427U CN 202320985404 U CN202320985404 U CN 202320985404U CN 219766427 U CN219766427 U CN 219766427U
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- CN
- China
- Prior art keywords
- roll
- roller
- curved
- curved surface
- pole piece
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- 238000005096 rolling process Methods 0.000 claims abstract description 22
- 239000011888 foil Substances 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 9
- 238000009434 installation Methods 0.000 claims description 12
- 238000007599 discharging Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract 1
- 229910052744 lithium Inorganic materials 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000000576 coating method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Classifications
-
- 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
Landscapes
- Metal Rolling (AREA)
Abstract
The utility model belongs to the field of lithium battery manufacturing equipment, and provides a rolling device capable of preventing folds from being broken after pole pieces are rolled. According to the rolling device capable of preventing the folds and the strips from being broken after the pole pieces are rolled, the curved surface roller is utilized to release the stress of the pole pieces, the thickness of the pole piece material area and the thickness of the empty foil area are filled, the folds in the pole lug area are avoided, the situation that the folds and the strips are broken is further prevented, and the product yield and the production efficiency are improved.
Description
Technical Field
The utility model relates to a rolling device, in particular to a rolling device capable of preventing folds and strips from being broken after pole pieces are rolled.
Background
The lithium ion battery is the most ideal electrochemical energy system internationally recognized at present, has the advantages of high energy density, long cycle life and the like, and is widely applied to industries of energy storage, new energy automobiles and the like. The pole piece rolling process is a process of compacting the dried pole piece to the standard thickness of the process through a roller press, and has important influence on the energy density, multiplying power characteristic and cycle stability of the electrode.
At present, a plurality of continuous production coating processes are adopted for coating, and when the roll is pressed, due to the characteristics of a pole piece and the process, the pole piece material area and the empty foil area on the foil belt have height difference, and when the roll is pulled by rolling tension, the pole piece is pressed, and after the pole piece is pressed, the pole lug area is folded and split due to the stress relationship, so that the roll outlet is frequently broken, and the process yield and the production efficiency are affected.
Disclosure of Invention
The utility model aims to overcome the existing defects, and provides a rolling device capable of preventing the folds and the strips from being broken after the pole piece is rolled, so that the problem that folds and the strips are broken when the pole ear area is broken under the rolling tension after the pole piece is rolled at present is solved.
In order to solve the technical problems, the utility model provides the following technical scheme:
the utility model provides a can prevent fold broken belt's roll-in device after pole piece roll-in, includes two parallel relative risers, two form installation space between the riser, installation space's charge-in side is provided with two main rolls of adjacent range, installation space's ejection of compact side is provided with two curved surface rollers of adjacent range, every curved surface roller's surface interval is provided with a plurality of circumference recesses, each circumference recess's position corresponds with the pole piece material district on the foil belt, every circumference recess's degree of depth is unanimous with the thickness of pole piece.
Further, a first roller passing and a second roller passing are respectively arranged on the feeding side and the discharging side of the two curved rollers in the installation space, the two curved rollers are divided into a first curved roller and a second curved roller, and the first curved roller and the second curved roller are respectively connected with the vertical plate through a first position adjusting device and a second position adjusting device.
Further, the first position adjusting device comprises two parallel and opposite first air cylinders, the inner side surface of each vertical plate is fixedly provided with a cylinder body of each first air cylinder, the telescopic rods of the two first air cylinders are respectively connected with two ends of a roll shaft of the first curved surface roll, and the extending direction of the telescopic rods of the first air cylinders points to the second curved surface roll.
Further, the second position adjusting device comprises two parallel and opposite second air cylinders, the inner side surface of each vertical plate is fixedly provided with a cylinder body of each second air cylinder, the telescopic rods of the two second air cylinders are respectively connected with two ends of a roll shaft of the second curved surface roll, and the extending direction of the telescopic rods of the second air cylinders points to a direction far away from the connecting line of the first passing roll and the second passing roll.
Further, waist-shaped holes are formed in positions, corresponding to two ends of the second curved surface roller, of the two vertical plates, the extending direction of the waist-shaped holes is consistent with the extending direction of the telescopic rod of the second air cylinder, and the end parts of the second curved surface roller are inserted into the waist-shaped holes on the corresponding sides and can slide in the waist-shaped holes.
Further, a slope structure is arranged at the groove wall of each circumferential groove.
According to the rolling device capable of preventing the folds and the strips from being broken after the pole pieces are rolled, the curved surface roller is used for releasing the stress of the pole pieces, the thickness of the pole piece material area and the thickness of the empty foil area are filled, the folds in the pole lug area are avoided, the situation that the folds and the strips are broken is further prevented, and the product yield and the production efficiency are improved.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:
FIG. 1 is a schematic cross-sectional view of the present utility model;
fig. 2 is a schematic view of the structure of the first curved roller and the second curved roller in the present utility model.
Detailed Description
The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model.
As shown in fig. 1 and 2, a rolling device capable of preventing folds from being broken after pole piece rolling comprises two parallel opposite vertical plates 1, an installation space is formed between the two vertical plates 1, two main rollers which are adjacently arranged are arranged on the feeding side of the installation space, two curved surface rollers which are adjacently arranged are arranged on the discharging side of the installation space, four circumferential grooves 2 are arranged on the outer surface of each curved surface roller at intervals, the positions of the circumferential grooves 2 correspond to pole piece material areas on a foil belt, and the depth of each circumferential groove 2 is consistent with the thickness of a pole piece.
The feeding side and the discharging side of the two curved surface rollers in the installation space are respectively provided with a first roller passing 3 and a second roller passing 4, the two curved surface rollers are divided into a first curved surface roller 5 and a second curved surface roller 6, and the two curved surface rollers are respectively connected with the vertical plate 1 through a first position adjusting device and a second position adjusting device.
The first position adjusting device comprises two parallel and opposite first air cylinders 7, the inner side surface of each vertical plate 1 is fixed with a cylinder body of one first air cylinder 7, the telescopic rods of the two first air cylinders 7 are respectively connected with two ends of a roll shaft of the first curved surface roll 5, and the extending direction of the telescopic rods of the first air cylinders 7 points to the second curved surface roll 6.
The second position adjusting device comprises two parallel and opposite second air cylinders 8, the inner side surface of each vertical plate 1 is fixed with a cylinder body of one second air cylinder 8, the telescopic rods of the two second air cylinders 8 are respectively connected with two ends of a roll shaft of the second curved surface roll 6, and the extending direction of the telescopic rods of the second air cylinders 8 points to a direction far away from the connecting line of the first passing roll 3 and the second passing roll 4. The second cylinder 8 tightens the foil strip by controlling the position of the second curved roller 6, and releases the extension force of the foil strip and the pole piece, thereby reducing the wrinkles of the empty foil area.
Working principle:
the foil strip bearing the pole piece passes through between the first main roller and the second main roller, the pole piece is conveyed to the second curved roller 6 through the first passing roller 3 after being rolled by the high strength and high pressure of the two main rollers, the curved surface groove on the second curved roller 6 is completely consistent with the thickness of the pole piece in the pole piece material area on the lower surface of the foil strip, the second passing roller 4 is conveyed to the winding mechanism, the second cylinder 8 is ejected to drive the second curved roller 6 to tension the foil strip before the equipment starts, meanwhile, the tension effect is also achieved on the pole piece, the first cylinder 7 pushes the first curved roller 5 to squeeze the pole piece to generate friction tension, smooth the tension is produced on the pole piece, the pole piece stress is released (the curved surface groove on the first curved roller 5 is completely consistent with the thickness of the pole piece in the pole piece material area on the upper surface of the foil strip), and the thickness of the empty foil area are filled through the two curved surface rollers, and the situation of folds and broken strip after the pole piece is rolled is improved.
Waist-shaped holes 9 are formed in positions, corresponding to two ends of the second curved surface roller 6, of the two vertical plates 1, the extending direction of the waist-shaped holes 9 is consistent with the extending direction of the telescopic rods of the second air cylinders 8, and the end portions of the second curved surface roller 6 are inserted into the corresponding side waist-shaped holes 9 and can slide in the waist-shaped holes 9. The waist-shaped holes 9 are utilized to support the second curved surface roller 6, so that the stress on the telescopic rod of the second air cylinder 8 in the vertical direction is reduced, the smooth operation of the second air cylinder 8 is ensured, and the service life of the second air cylinder 8 is prolonged.
The groove wall of each circumferential groove 2 is provided with a slope structure 10, so that the pole pieces can smoothly enter the curved surface grooves, and the correction effect on the conveying of the foil strips is achieved.
According to the rolling device capable of preventing the folds and the strips from being broken after the pole pieces are rolled, the curved surface roller is used for releasing the stress of the pole pieces, the thickness of the pole piece material area and the thickness of the empty foil area are filled, the folds in the pole lug area are avoided, the situation that the folds and the strips are broken is further prevented, and the product yield and the production efficiency are improved.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (6)
1. Can prevent roll-in device of fold broken tape after pole piece roll-in, its characterized in that: including two parallel relative risers, two form the installation space between the riser, the charge-in side of installation space is provided with two main rolls of adjacent range, the discharge side of installation space is provided with two curved surface rollers of adjacent range, every curved surface roller's surface interval is provided with a plurality of circumference recesses, each circumference recess's position corresponds with the pole piece material district on the foil belt, every circumference recess's degree of depth is unanimous with the thickness of pole piece.
2. The rolling device capable of preventing fold breakage of pole pieces after rolling according to claim 1, wherein: the installation space is internally provided with a first roller passing and a second roller passing on the feeding side and the discharging side of the two curved rollers respectively, the two curved rollers are divided into a first curved roller and a second curved roller, and the first curved roller and the second curved roller are connected with the vertical plate through a first position adjusting device and a second position adjusting device respectively.
3. The rolling device capable of preventing fold breakage of pole pieces after rolling according to claim 2, characterized in that: the first position adjusting device comprises two parallel and opposite first air cylinders, the inner side surface of each vertical plate is fixedly provided with a cylinder body of each first air cylinder, the telescopic rods of the two first air cylinders are respectively connected with two ends of a roll shaft of the first curved surface roll, and the extending direction of the telescopic rods of the first air cylinders points to the second curved surface roll.
4. The rolling device capable of preventing fold breakage of pole pieces after rolling according to claim 2, characterized in that: the second position adjusting device comprises two parallel and opposite second air cylinders, the inner side surface of each vertical plate is fixedly provided with a cylinder body of each second air cylinder, the telescopic rods of the two second air cylinders are respectively connected with two ends of a roll shaft of the second curved surface roll, and the extending direction of the telescopic rods of the second air cylinders points to a direction far away from the connecting line of the first passing roll and the second passing roll.
5. The rolling device capable of preventing fold breakage after pole piece rolling according to claim 4, wherein: waist type holes are formed in positions, corresponding to two ends of the second curved surface roller, of the two vertical plates, the extending direction of the waist type holes is consistent with the extending direction of the telescopic rod of the second air cylinder, and the end parts of the second curved surface roller are inserted into the waist type holes on the corresponding sides and can slide in the waist type holes.
6. The rolling device capable of preventing fold breakage of pole pieces after rolling according to claim 1, wherein: and a slope structure is arranged at the groove wall of each circumferential groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320985404.5U CN219766427U (en) | 2023-04-27 | 2023-04-27 | Can prevent roll-in device of fold broken tape after pole piece roll-in |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320985404.5U CN219766427U (en) | 2023-04-27 | 2023-04-27 | Can prevent roll-in device of fold broken tape after pole piece roll-in |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219766427U true CN219766427U (en) | 2023-09-29 |
Family
ID=88135116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320985404.5U Active CN219766427U (en) | 2023-04-27 | 2023-04-27 | Can prevent roll-in device of fold broken tape after pole piece roll-in |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219766427U (en) |
-
2023
- 2023-04-27 CN CN202320985404.5U patent/CN219766427U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |