CN112666168B - Rapid detection system for roll-to-roll surface of stainless steel substrate of CIGS battery piece - Google Patents
Rapid detection system for roll-to-roll surface of stainless steel substrate of CIGS battery piece Download PDFInfo
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- CN112666168B CN112666168B CN202011589224.2A CN202011589224A CN112666168B CN 112666168 B CN112666168 B CN 112666168B CN 202011589224 A CN202011589224 A CN 202011589224A CN 112666168 B CN112666168 B CN 112666168B
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- 239000000758 substrate Substances 0.000 title claims abstract description 69
- 238000001514 detection method Methods 0.000 title claims abstract description 30
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 25
- 239000010935 stainless steel Substances 0.000 title claims abstract description 25
- 239000000463 material Substances 0.000 claims abstract description 54
- 230000007547 defect Effects 0.000 claims abstract description 34
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 238000004804 winding Methods 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims description 5
- 230000001360 synchronised effect Effects 0.000 abstract description 3
- KTSFMFGEAAANTF-UHFFFAOYSA-N [Cu].[Se].[Se].[In] Chemical compound [Cu].[Se].[Se].[In] KTSFMFGEAAANTF-UHFFFAOYSA-N 0.000 description 9
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 3
- 238000010549 co-Evaporation Methods 0.000 description 2
- 238000009501 film coating Methods 0.000 description 2
- 239000007888 film coating Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 239000011669 selenium Substances 0.000 description 1
- 238000012031 short term test Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
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- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The invention relates to a CIGS battery piece stainless steel substrate roll-to-roll surface rapid detection system, which solves the problem that the surface quality detection of stainless steel substrate coiled materials is mainly determined by naked eye observation of workers, and the working efficiency is low. The device is characterized in that a plurality of conveying rollers for conveying the substrate coiled material are arranged between the unreeling shaft and the reeling shaft, a surface detection system is arranged between two adjacent conveying rollers and comprises a laser range finder, a spectroscope is arranged between the laser range finder and the surface of the substrate coiled material, laser is divided into a transmission beam and a reflection beam by the spectroscope, the transmission beam forms point projection on the surface of the substrate coiled material, the reflection beam passes through a beam expander and forms line projection on the surface of the substrate coiled material after passing through a 45-degree conical mirror, and a surface defect detector is arranged above the line projection. The invention realizes the synchronous detection of the tension degree, the flatness and the oil stain scratch defects of the stainless steel substrate coiled material by using the same light source, and can automatically and quickly detect the defects of the substrate coiled material.
Description
Technical Field
The invention belongs to the field of solar cell production, relates to substrate raw material detection equipment of a CIGS flexible solar cell, and particularly relates to a rapid detection system for the roll-to-roll surface of a stainless steel substrate of the CIGS flexible solar cell.
Background
The flexible solar cell sheet is formed by forming a solar photovoltaic material coating on a flexible windable substrate. The Copper Indium Gallium Selenide (CIGS) thin film cell is a solar photovoltaic material with high mass-power ratio and good stability, and is generally considered as a flexible solar cell material with the greatest development prospect. The multi-element co-evaporation method is the most widely applied CIGS film coating method, film coating is completed in a vacuum environment, and a polycrystalline coating is formed on the surface of a substrate through reaction by co-evaporation of elements such as copper, indium, gallium and selenium.
The stainless steel substrate of the CIGS flexible solar cell is a basis for attaching a coating, the stainless steel substrate is an ultrathin stainless steel coiled material, and before the production link, detection needs to be carried out on the flatness, scratch, oil stain spots left after cleaning and the tension tightness degree of two sides of the coiled material. At present, the detection process of the mainstream stainless steel substrate coiled material detection equipment is mainly determined by naked eye observation of workers, the whole-process tracking record is needed, the working efficiency is low, the labor intensity is high, and the production cost is high.
Disclosure of Invention
The invention aims to solve the problems that the detection of the surface quality of a stainless steel substrate coiled material of a CIGS flexible solar cell sheet is mainly determined by naked eye observation of workers, the whole-process tracking record is required, the working efficiency is low, and the production cost is high.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a CIGS battery piece stainless steel substrate roll-to-roll surface rapid detection system, includes and unreels axle and rolling shaft, unreels and receive and release between axle and the rolling shaft and carry the substrate coiled material, its characterized in that: be equipped with the conveying roller of a plurality of transport base coiled materials between unreeling axle and the rolling axle, wherein be equipped with surface detecting system between two adjacent conveying rollers, surface detecting system includes laser range finder, laser range finder perpendicular to base coiled material surface, be provided with the spectroscope between laser range finder and the base coiled material surface, the spectroscope falls into the laser of laser range finder into and is used for laser range finding's transmission beam and the reflected light beam that is used for the plane degree to detect, and transmission beam forms the point projection at base coiled material surface, the reflected light beam forms the line source to conical surface mirror ring week radial divergence after beam expanding mirror, 45 degrees conical surface mirrors, and the slope of line source is projected and is formed the line projection on base coiled material surface, the top of line projection is equipped with surface defect detector camera. This scheme uses same laser light source to realize the synchronous detection of rate of tension, roughness, greasy dirt mar defect of stainless steel base coiled material through one set of optical system, and detection efficiency is high, and range finding information, the camera photo that obtain through this system can carry out full automatization short-term test to the defect of stainless steel base coiled material. The laser ranging information can detect whether the substrate coiled material has curl or not, if the base coiled material has curl, the data of the laser ranging deviates from a set value, and the tension of the substrate coiled material is insufficient at the moment; reflected light beams split by the laser range finder can form a linear light source after beam expansion and secondary reflection, the linear light source is obliquely projected on the surface of the substrate coiled material to form linear projection, and when the substrate coiled material is uneven, the linear projection can be distorted at the uneven part and can be easily identified in an image acquired by a surface defect detector; when the surface of the substrate coiled material has oil stain, scratch and other defects, the characteristics of the photo acquired by the surface defect detector are extracted, and the defect information can be identified. The defect information is processed uniformly and can be used as the evaluation basis for whether the substrate coiled material is qualified or not.
Preferably, the 45-degree conical mirror and the beam expander are coaxially arranged, the 45-degree conical mirror is a cylinder, a 45-degree chamfer is formed on the periphery of one end, facing the beam expander, of the cylinder, so that an annular conical surface is formed, and the width of a light beam of the reflected light beam passing through the beam expander is not smaller than the diameter of the cylinder of the 45-degree conical mirror. The light that the beam expander expanded beam is 180 degrees reflections or transmission at the terminal surface of cylinder, penetrates directly and crosses in the outside of cylinder, only advances to cross 90 degrees refractions in annular conical surface department, forms the line source of annular projection. The annular conical surface can be coated with a reflective coating.
Preferably, the included angle between the spectroscope and the surface of the substrate coiled material is 45 degrees, a first reflecting mirror is arranged between the spectroscope and the beam expanding mirror, and the included angle between the first reflecting mirror and the surface of the substrate coiled material is 15-30 degrees. The reflected beam forms an included angle with the surface of the coiled material and can be obliquely projected to the surface of the substrate coiled material after being expanded and passing through a 45-degree conical mirror.
Preferably, the laser range finder comprises a laser projection lens and a laser retro-reflection lens, wherein a spectroscope is arranged below the laser projection lens, a second reflecting mirror is arranged below the laser retro-reflection lens, and the second reflecting mirror is parallel to the spectroscope. The transmitted beam of the laser ranging is received by the laser retro-reflection lens after secondary reflection, so that the light intensity loss is reduced.
Preferably, the surface detection system is arranged between two transport rollers closest to the take-up reel.
Preferably, the substrate web between the two transport rollers closest to the take-up reel is arranged facing upwards or obliquely upwards.
Preferably, the lens of the surface defect detector camera is perpendicular to the surface of the substrate web.
The invention realizes the synchronous detection of the tension degree, the flatness and the oil stain scratch defects of the stainless steel substrate coiled material by the same optical system and the same laser source, has high detection efficiency, and can carry out full-automatic rapid detection on the defects of the stainless steel substrate coiled material by the distance measurement information and the camera photos obtained by the system.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of an embodiment of the present invention.
FIG. 2 is a schematic diagram of a surface inspection system according to the present invention.
Fig. 3 is a schematic view of a lens-captured image of a surface defect detecting camera according to the present invention.
Fig. 4 is a schematic diagram of the structure at a in fig. 2 of the present invention.
FIG. 5 is a schematic diagram of a 45 degree conical mirror of the present invention.
Fig. 6 is a schematic structural diagram of a second laser range finder of the present invention.
In the figure: 1. the device comprises an unwinding shaft, 2, a winding shaft, 3, a substrate coiled material, 4, a conveying roller, 5, a surface detection system, 6, a laser range finder, 7, a spectroscope, 8, a first reflector, 9, a beam expander, 10 and 45-degree conical mirrors, 11, point projection, 12, line projection, 13, a surface defect detector, 14, a convex hull defect, 15, an oil stain defect, 16, a line light source, 17, an annular conical surface, 18, a laser projection lens, 19, a laser retroreflection lens, 20 and a second reflector.
Detailed Description
The invention is further illustrated by the following specific examples in conjunction with the accompanying drawings.
Example 1: a CIGS cell piece stainless steel substrate roll-to-roll surface rapid detection system is shown in figure 1. The device comprises an unwinding shaft 1 and a winding shaft 2, wherein a substrate coiled material 3 for conveying ultrathin stainless steel materials is wound and unwound between the unwinding shaft and the winding shaft. A plurality of conveying rollers 4 for conveying the substrate coiled material are arranged between the unwinding shaft and the winding shaft, and a surface detection system 5 is arranged between the two conveying rollers 4 closest to the winding shaft 2. The substrate web 3 between the two transport rollers 4 closest to the take-up reel 2 is arranged obliquely upwards.
As shown in fig. 2 and 4, the surface detection system 5 comprises a laser range finder 6, the laser range finder is perpendicular to the surface of the substrate coiled material 4, a spectroscope 7 is arranged between the laser range finder 6 and the surface of the substrate coiled material 4, and the included angle between the spectroscope 7 and the surface of the substrate coiled material 3 is 45 degrees. The beam splitter 7 splits the laser of the laser rangefinder into a transmitted beam for laser rangefinding and a reflected beam for flatness detection, the transmitted beam forming a spot projection 11 on the surface of the substrate web. The reflected light speed is reflected by the first reflector 8, and then passes through the beam expander 9 and the 45-degree conical mirror 10 to form a linear light source 16 which radially diverges towards the periphery of the conical mirror. The first mirror 8 is angled at 22.5 degrees from the substrate web 3 and the line light source 16 is projected at a 45 degree slant onto the surface of the substrate web 3 to form a line projection 12. A surface defect detector 13 is arranged above the line projection 12. The lens of the surface defect detector camera 13 is perpendicular to the surface of the base web 3.
As shown in fig. 5, the 45-degree conical mirror 10 and the beam expander 9 are coaxially arranged, the 45-degree conical mirror is a cylinder, a 45-degree chamfer is formed around one end of the cylinder facing the beam expander, so as to form an annular conical surface 17, and the width of the reflected light beam passing through the beam expander is not less than the diameter of the cylinder of the 45-degree conical mirror. The light rays expanded by the beam expander are reflected or transmitted by 180 degrees on the end face of the cylinder, pass through the cylinder directly and are refracted by 90 degrees only at the annular conical surface, and the line light source 16 projected in the annular direction is formed. The annular conical surface can be coated with a reflective coating.
The laser range finder 6 can detect whether the substrate coiled material 3 is curled or not, if the substrate coiled material is curled, the data of laser range finding deviates from a set value, and the tensioning force of the substrate coiled material is insufficient at the moment; as shown in fig. 2, the reflected light beam split by the laser range finder 6 can be expanded and reflected for the second time to form a linear light source which is obliquely projected on the surface of the substrate coil to form a linear projection, when the substrate coil has unevenness, the linear projection can be distorted at the unevenness, and can be easily identified by the image acquired by the surface defect detector; when the surface of the substrate coiled material has oil stain, scratch and other defects, the characteristics of the photo acquired by the surface defect detector are extracted, and the defect information can be identified. As shown in fig. 3, when the substrate web has a convex hull defect, the line projection 12 is distorted at the convex hull defect, and when the substrate web has an oil stain defect, the oil stain defect and the bottom color of the substrate web have a large color difference, the defect information can be separated and extracted from the photo. For example, the oil stain defect can be treated by adopting the most basic image processing method, after converting an image into a gray level picture, marking an area deviating from the normal substrate gray level, counting the ratio of the area, and removing the area of line projection to be used as an oil stain defect area. For example, the convex hull defect may be detected by extracting coordinates of a line projection area after processing the image gray scale, and detecting the straightness of the coordinate area.
Example 2, a CIGS cell sheet stainless steel substrate roll-to-roll surface rapid inspection system, as shown in fig. 6. In this embodiment, the laser range finder includes a laser projection lens 18 and a laser retro-reflection lens 19, wherein a beam splitter 7 is disposed below the laser projection lens, and a second reflection mirror 20 is disposed below the laser retro-reflection lens, and the second reflection mirror is parallel to the beam splitter. The transmitted light beam of the laser range finder through the beam splitter is received after being reflected twice by the second reflecting mirror 20 and the back surface of the beam splitter 7 when returning, and the intensity of the optical signal is ensured. The rest of the structure of this embodiment is the same as embodiment 1.
Claims (6)
1. The utility model provides a CIGS battery piece stainless steel substrate roll-to-roll surface rapid detection system, includes and unreels axle and rolling shaft, unreels and receive and release between axle and the rolling shaft and carry the substrate coiled material, its characterized in that: a plurality of conveying rollers for conveying the substrate coiled material are arranged between the unreeling shaft and the reeling shaft, a surface detection system is arranged between two adjacent conveying rollers and comprises a laser range finder, the laser range finder is perpendicular to the surface of the substrate coiled material, a spectroscope is arranged between the laser range finder and the surface of the substrate coiled material, laser of the laser range finder is divided into a transmission beam for laser range finding and a reflection beam for flatness detection by the spectroscope, the transmission beam forms point projection on the surface of the substrate coiled material, the reflection beam forms a line light source which radially diverges towards the circumference of the conical surface mirror after passing through a beam expander and a 45-degree conical surface mirror, the line light source is obliquely projected on the surface of the substrate coiled material to form line projection, and a surface defect detection camera is arranged above the line projection; the 45 degree conical surface mirror and the coaxial setting of beam expander, 45 degree conical surface mirror are the cylinder, and the cylinder forms annular conical surface towards the one end ring week 45 degree chamfer of beam expander, the beam width of reflected beam behind the beam expander is not less than 45 degree conical surface's cylinder diameter.
2. The system for rapidly detecting the roll-to-roll surface of the stainless steel substrate of the CIGS battery piece according to claim 1, wherein: the included angle of spectroscope and basement coiled material surface is 45 degrees, be equipped with first speculum between spectroscope and the beam expander, the included angle of first speculum and basement coiled material surface is 15-30 degrees.
3. The system for rapidly detecting the roll-to-roll surface of the stainless steel substrate of the CIGS battery piece as claimed in claim 1 or 2, wherein: the laser range finder comprises a laser projection lens and a laser retro-reflection lens, wherein a spectroscope is arranged below the laser projection lens, a second reflecting mirror is arranged below the laser retro-reflection lens, and the second reflecting mirror is parallel to the spectroscope.
4. The system for rapidly detecting the roll-to-roll surface of the stainless steel substrate of the CIGS battery piece as claimed in claim 1 or 2, wherein: the surface detection system is arranged between two conveying rollers closest to the winding shaft.
5. The system for rapidly detecting the roll-to-roll surface of the stainless steel substrate of the CIGS battery piece as claimed in claim 4, wherein: the substrate web between the two transport rollers closest to the take-up reel is positioned facing upwards.
6. The system for rapidly detecting the roll-to-roll surface of the stainless steel substrate of the CIGS battery piece according to claim 1 or 2, wherein: the lens of the surface defect detection camera is perpendicular to the surface of the substrate web.
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| CN114042589B (en) * | 2021-10-15 | 2023-04-21 | 山东泉为新能源科技有限公司 | Processing equipment for reinforcing solar cell raw material performance by high polymer material |
| CN114686838B (en) * | 2022-03-28 | 2024-06-11 | 尚越光电科技股份有限公司 | High-stability transmission system of CIGS co-evaporation equipment |
| CN116256372A (en) * | 2023-05-16 | 2023-06-13 | 征图新视(江苏)科技股份有限公司 | Optical film front-end Cheng Juancai full-detection device and detection method thereof |
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Address after: Room 211, Building 3, No. 399 Xingguo Road, Linping Street, Linping District, Hangzhou City, Zhejiang Province, 311103 Patentee after: Still more photoelectric Polytron Technologies Inc. Address before: Room 603, building 1, Shangyue Green Valley Center, 1999 yuhangtang Road, Wuchang Street, Yuhang District, Hangzhou City, Zhejiang Province Patentee before: Still more photoelectric Polytron Technologies Inc. |