CN219694897U - Pinhole defect detection device for lithium battery pole piece - Google Patents
Pinhole defect detection device for lithium battery pole piece Download PDFInfo
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- CN219694897U CN219694897U CN202321142267.5U CN202321142267U CN219694897U CN 219694897 U CN219694897 U CN 219694897U CN 202321142267 U CN202321142267 U CN 202321142267U CN 219694897 U CN219694897 U CN 219694897U
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- lithium battery
- battery pole
- pole piece
- detection device
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Links
- 238000001514 detection method Methods 0.000 title claims abstract description 54
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 45
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 45
- 230000007547 defect Effects 0.000 title claims abstract description 25
- 230000005540 biological transmission Effects 0.000 claims abstract description 30
- 230000008093 supporting effect Effects 0.000 claims abstract description 15
- 238000004804 winding Methods 0.000 claims abstract description 14
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 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
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 230000003245 working effect 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
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The utility model provides a pinhole defect detection device for a lithium battery pole piece, which comprises a winding machine and a detection assembly, wherein the detection assembly comprises two groups of bearing plates, the two groups of bearing plates are connected with supporting rods, the two groups of supporting rods are connected through a shooting positioning frame, the shooting positioning frame is connected with an industrial camera, the industrial camera is connected with a lens, the two groups of supporting rods are respectively connected with a transmission mounting frame, a roller is rotatably connected between the two groups of transmission mounting frames, a line scanning light source is arranged at the bottom of the roller, and the line scanning light source is connected with an external control device through a light source controller. The beneficial effects are as follows: the whole detection work does not need manual interference, the workload is small, and the working efficiency is high; the detection precision is effectively improved.
Description
Technical Field
The utility model relates to the technical field of detection devices, in particular to a pinhole defect detection device for a lithium battery pole piece.
Background
In recent years, with the vigorous development of the new energy automobile industry, the new energy automobile market and the national patch policy continuously put higher demands on the energy density, the cycle life, the safety performance and the battery cost of the lithium ion power battery. Therefore, battery manufacturers pay high attention to quality control in the production process, strive to improve the quality and consistency of products, and reduce the production cost of batteries as much as possible.
The lithium battery pole piece is a front-end process link of the whole battery production, and in order to improve the quality of lithium battery products and avoid explosion accidents, the defects of each process of battery production need to be avoided as much as possible. Pinholes are formed in the position of the electrode sheet in the empty aluminum foil area before coating or after coating and drying due to dust in the air or other interference, and the occurrence of the pinholes has a great influence on the quality of the lithium battery. Therefore, the detection of pinhole defects of the lithium battery pole piece is necessary, the existing pinhole defect detection method is a manual visual defect detection method, and the detection method is simple and easy to operate, but has the advantages of large workload, low working efficiency and low detection precision.
Disclosure of Invention
In order to solve the problems, particularly to overcome the defects of the prior art, the utility model provides a pinhole defect detection device for a lithium battery pole piece, which can solve the problems.
In order to achieve the above purpose, the utility model adopts the following technical means:
the utility model provides a detection device for lithium cell pole piece pinhole defect, includes rolling machine, direction transmission and the detection subassembly that detects the lithium cell pole piece that the rolling detected, detection subassembly includes two sets of loading boards, two sets of the top of loading board is connected with the bracing piece, two sets of the top of bracing piece is connected through shooting the locating rack, the lateral part of shooting the locating rack is connected with multiunit evenly distributed's industrial camera, the camera end of industrial camera is connected with the camera lens, the outside information acquisition equipment is connected to industrial camera, two sets of the opposite side of bracing piece is connected with the transmission mounting bracket respectively, two sets of rotate between the transmission mounting bracket and be connected with the roller, the bottom of crossing the roller is equipped with and corresponds and sweep the light source with the line that the bracing piece is connected, the line sweeps the light source and passes through the light source controller and connects external control device.
The utility model further preferably comprises the following steps: the rotating speed of the winding machine is 120m/min.
The utility model further preferably comprises the following steps: the bearing plate, the support rod, the transmission installation frame and the shooting positioning frame are all made of stainless steel products.
The utility model further preferably comprises the following steps: the bearing plate is connected with the supporting rods through a plurality of groups of reinforcing plates.
The utility model further preferably comprises the following steps: the bottoms of the two groups of support rods are connected through a connecting rod.
The utility model further preferably comprises the following steps: the transmission mounting frame is connected with the support rods through a plurality of groups of positioning rods.
The utility model further preferably comprises the following steps: and a plurality of groups of uniformly distributed passing rollers are rotationally connected between the two groups of transmission mounting frames.
The utility model further preferably comprises the following steps: and the outer side of the passing roller is sleeved with a passing roller supporting diaphragm.
The utility model further preferably comprises the following steps: the width of the combined shooting range of the industrial cameras is larger than the distance between the two groups of support rods.
The utility model further preferably comprises the following steps: the model of the light source controller is CST-CPL48760C-1T, the model of the line scanning light source is CST-2LPG1350-w, the model of the industrial camera is ML-FM-16K15A, and the model of the lens is VCT100/5.6-0.17X.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the utility model, the winding machine drives the lithium battery pole piece to move, the lithium battery pole piece is guided and transmitted through the roller, the line scanning light source, the industrial camera and the lens are used for shooting and detecting the lithium battery pole piece, the whole detection work does not need manual interference, the workload is small, and the working efficiency is high.
2. The minimum pinhole of the lithium battery pole piece is 30 mu m, the tape moving speed of a winding machine is 120 mu m/min, the detection error requirement is +/-10 mu m, a plurality of groups of industrial cameras are installed side by side, the pixel size of the industrial cameras is 5 mu m, the line frequency is 140KHz, the pixel precision is 0.02mm/pix, so that the required line frequency = speed/(pixel precision = 120 x 1000/60 (mm/s)/0.02 (mm/pix) = 100KHz <10 KHz), the line frequency of the industrial cameras meets the detection requirement, the repeatability is kept within 20 mu m, and the detection error can be below 20 mu m at the speed of 120m/min, thereby effectively improving the detection precision.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a side view of the support rod of the present utility model;
FIG. 3 is a schematic view of the structure of the over-roll of the present utility model;
FIG. 4 is a schematic view of the structure of the line scanning light source of the present utility model;
FIG. 5 is a schematic view of the structure of an industrial camera and lens of the present utility model;
in the figure:
1. a winding machine; 2. a lithium battery pole piece; 3. a carrying plate; 4. a reinforcing plate; 5. a support rod; 6. a connecting rod; 7. a light source controller; 8. a positioning rod; 9. a transmission mounting rack; 10. passing through a roller; 11. a line scanning light source; 12. shooting a positioning frame; 13. an industrial camera; 14. and a lens.
Detailed Description
The utility model is further described below with reference to the accompanying drawings:
example 1
As shown in fig. 1 to 5, the utility model provides a pinhole defect detection device for a lithium battery pole piece, which comprises a winding machine 1 for winding a detected lithium battery pole piece 2, and a detection component for guiding transmission and detecting the lithium battery pole piece 2, wherein the detection component comprises two groups of bearing plates 3, the tops of the two groups of bearing plates 3 are connected with support rods 5, the tops of the two groups of support rods 5 are connected through a shooting positioning frame 12, the sides of the shooting positioning frame 12 are connected with a plurality of groups of evenly distributed industrial cameras 13, the shooting end of the industrial cameras 13 are connected with lenses 14, the industrial cameras 13 are connected with external information acquisition equipment, the opposite sides of the two groups of support rods 5 are respectively connected with a transmission mounting frame 9, a roller 10 is rotationally connected between the two groups of transmission mounting frames 9, a line scanning light source 11 which corresponds to the lenses 14 and is connected with the support rods 5 is arranged at the bottom of the roller 10, and the line scanning light source 11 is connected with an external control device through a light source controller 7.
Workflow process
The lithium battery pole piece 2 is connected with the rolling machine 1 under the direction of the roller 10, the rolling machine 1 drives the lithium battery pole piece 2 to move, an industrial camera 13 and a lens 14 for shooting and detecting the lithium battery pole piece 2 are arranged at the top of the roller 10, a line scanning light source 11 for intensifying light is arranged at the bottom of the roller 10, the line scanning light source 11 is connected with an external control device through a light source controller 7, the external control device adjusts the brightness of the line scanning light source 11, the industrial camera 13 transmits shot contents to external information acquisition equipment, and the external information acquisition equipment judges whether pinhole defects exist or not through information analysis.
Example 2
As shown in fig. 1 to 5, the utility model provides a pinhole defect detection device for a lithium battery pole piece, which comprises a winding machine 1 for winding a detected lithium battery pole piece 2, and a detection component for guiding transmission and detecting the lithium battery pole piece 2, wherein the detection component comprises two groups of bearing plates 3, the tops of the two groups of bearing plates 3 are connected with support rods 5, the tops of the two groups of support rods 5 are connected through a shooting positioning frame 12, the sides of the shooting positioning frame 12 are connected with a plurality of groups of evenly distributed industrial cameras 13, the shooting end of the industrial cameras 13 are connected with lenses 14, the industrial cameras 13 are connected with external information acquisition equipment, the opposite sides of the two groups of support rods 5 are respectively connected with a transmission mounting frame 9, a roller 10 is rotationally connected between the two groups of transmission mounting frames 9, a line scanning light source 11 which corresponds to the lenses 14 and is connected with the support rods 5 is arranged at the bottom of the roller 10, and the line scanning light source 11 is connected with an external control device through a light source controller 7.
The bearing plate 3, the support rod 5, the transmission mounting rack 9 and the shooting positioning rack 12 are all made of stainless steel. The stainless steel product has better hardness, and simultaneously has better wear resistance and corrosion resistance, and the service lives of the bearing plate 3, the supporting rod 5, the transmission mounting frame 9 and the shooting positioning frame 12 of the stainless steel product are long.
The bearing plate 3 is connected with the supporting rods 5 through a plurality of groups of reinforcing plates 4. This kind of setting can effectively improve the compactness between loading board 3 and the bracing piece 5, can effectively prevent to appear the fracture phenomenon between loading board 3 and the bracing piece 5.
The bottoms of the two groups of support rods 5 are connected through a connecting rod 6. This kind of setting can effectively improve the compactness between two sets of bracing pieces 5, can effectively prevent to appear the fracture phenomenon between two sets of bracing pieces 5.
The transmission mounting frame 9 is connected with the support rod 5 through a plurality of groups of positioning rods 8. This kind of setting can effectively improve the compactness between transmission mounting bracket 9 and the bracing piece 5, can effectively prevent to appear the fracture phenomenon between transmission mounting bracket 9 and the bracing piece 5.
Example 3
As shown in fig. 1 to 5, the utility model provides a pinhole defect detection device for a lithium battery pole piece, which comprises a winding machine 1 for winding a detected lithium battery pole piece 2, and a detection component for guiding transmission and detecting the lithium battery pole piece 2, wherein the detection component comprises two groups of bearing plates 3, the tops of the two groups of bearing plates 3 are connected with support rods 5, the tops of the two groups of support rods 5 are connected through a shooting positioning frame 12, the sides of the shooting positioning frame 12 are connected with a plurality of groups of evenly distributed industrial cameras 13, the shooting end of the industrial cameras 13 are connected with lenses 14, the industrial cameras 13 are connected with external information acquisition equipment, the opposite sides of the two groups of support rods 5 are respectively connected with a transmission mounting frame 9, a roller 10 is rotationally connected between the two groups of transmission mounting frames 9, a line scanning light source 11 which corresponds to the lenses 14 and is connected with the support rods 5 is arranged at the bottom of the roller 10, and the line scanning light source 11 is connected with an external control device through a light source controller 7.
The rotational speed of the winder 1 was 120m/min. The setting can satisfy the shooting requirement of the detection assembly, and can effectively improve the working efficiency and the working effect of the detection assembly.
A plurality of groups of uniformly distributed passing rollers 10 are rotatably connected between the two groups of transmission mounting frames 9. The arrangement can effectively improve the supporting effect of the detection assembly on the lithium battery pole piece 2 and the guiding effect of the detection assembly on the lithium battery pole piece 2.
The outside of the passing roller 10 is sleeved with a passing roller supporting diaphragm. The setting can effectively prevent the shaking phenomenon of the lithium battery pole piece 2 when the roller 10 conducts the lithium battery pole piece 2, and effectively improve the detection effect.
The width of the combined photographing range of the plurality of sets of industrial cameras 13 is larger than the distance between the two sets of support bars 5. This arrangement enables the plurality of industrial cameras 13 to fully detect the lithium battery pole pieces 2 passing through the bottoms of the industrial cameras 13, effectively ensuring the detection effect.
The model of the light source controller 7 is CST-CPL48760C-1T, the model of the line scanning light source 11 is CST-2LPG1350-w, the model of the industrial camera 13 is ML-FM-16K15A, and the model of the lens 14 is VCT100/5.6-0.17X. The setting can satisfy the camera detection requirement, can effectively improve the detection effect, can effectively improve the detection precision.
In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify 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.
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 (10)
1. A detection device for pinhole defects of lithium battery pole pieces is characterized in that the detection device comprises a winding machine (1) for winding detected lithium battery pole pieces (2), a detection assembly for guiding transmission and detecting the lithium battery pole pieces (2), the detection assembly comprises two groups of bearing plates (3), the tops of the bearing plates (3) are connected with supporting rods (5), the tops of the two groups of the supporting rods (5) are connected through shooting positioning frames (12), the side parts of the shooting positioning frames (12) are connected with a plurality of groups of evenly distributed industrial cameras (13), the camera ends of the industrial cameras (13) are connected with lenses (14), the industrial cameras (13) are connected with external information acquisition equipment, the opposite sides of the two groups of the supporting rods (5) are respectively connected with transmission mounting frames (9), a roller (10) is connected between the two groups of transmission mounting frames (9) in a rotating mode, the bottoms of the roller (10) are provided with line scanning light sources (11) which correspond to the lenses (14) and are connected with the supporting rods (5), and the line scanning light sources (11) are connected with external control devices through light source controllers (7).
2. The pinhole defect detection device for the lithium battery pole piece according to claim 1, wherein the rotating speed of the winding machine (1) is 120m/min.
3. The pinhole defect detection device for the lithium battery pole piece according to claim 1, wherein the bearing plate (3), the supporting rod (5), the transmission mounting frame (9) and the shooting positioning frame (12) are all made of stainless steel.
4. A pinhole defect detection device for a lithium battery pole piece according to claim 3, characterized in that the carrier plate (3) is connected with the support rod (5) through a plurality of groups of reinforcing plates (4).
5. The pinhole defect detection device for a lithium battery pole piece according to claim 4, wherein bottoms of the two groups of support rods (5) are connected through a connecting rod (6).
6. The pinhole defect detection device for the lithium battery pole piece according to claim 5, wherein the transmission mounting frame (9) is connected with the support rod (5) through a plurality of groups of positioning rods (8).
7. The pinhole defect detection device for the lithium battery pole piece according to claim 1, wherein a plurality of groups of uniformly distributed passing rollers (10) are rotatably connected between two groups of transmission mounting frames (9).
8. The pinhole defect detection device for the lithium battery pole piece according to claim 7, wherein the outer side of the passing roller (10) is sleeved with a passing roller supporting diaphragm.
9. The pinhole defect detection device for a lithium battery pole piece according to claim 1, wherein the width of the combined shooting range of a plurality of groups of industrial cameras (13) is larger than the distance between two groups of support rods (5).
10. The pinhole defect detection device for a lithium battery pole piece according to claim 9, wherein the model of the light source controller (7) is CST-CPL48760C-1T, the model of the line scanning light source (11) is CST-2LPG1350-w, the model of the industrial camera (13) is ML-FM-16K15A, and the model of the lens (14) is VCT100/5.6-0.17X.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321142267.5U CN219694897U (en) | 2023-05-12 | 2023-05-12 | Pinhole defect detection device for lithium battery pole piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321142267.5U CN219694897U (en) | 2023-05-12 | 2023-05-12 | Pinhole defect detection device for lithium battery pole piece |
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| Publication Number | Publication Date |
|---|---|
| CN219694897U true CN219694897U (en) | 2023-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202321142267.5U Active CN219694897U (en) | 2023-05-12 | 2023-05-12 | Pinhole defect detection device for lithium battery pole piece |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117299474A (en) * | 2023-11-29 | 2023-12-29 | 宁德时代新能源科技股份有限公司 | Coating detection device and coating system |
-
2023
- 2023-05-12 CN CN202321142267.5U patent/CN219694897U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117299474A (en) * | 2023-11-29 | 2023-12-29 | 宁德时代新能源科技股份有限公司 | Coating detection device and coating system |
| CN117299474B (en) * | 2023-11-29 | 2024-04-02 | 宁德时代新能源科技股份有限公司 | Coating detection device and coating system |
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