CN204556517U - Hot rolled sheet metal surface quality on-line detecting device - Google Patents
Hot rolled sheet metal surface quality on-line detecting device Download PDFInfo
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- CN204556517U CN204556517U CN201520299422.3U CN201520299422U CN204556517U CN 204556517 U CN204556517 U CN 204556517U CN 201520299422 U CN201520299422 U CN 201520299422U CN 204556517 U CN204556517 U CN 204556517U
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Abstract
The utility model relates to a kind of hot rolled sheet metal surface quality on-line detecting device, above output strip line and below transversely respectively install one group of high speed linear array camera and coordinate camera take pictures configuration LED light source, wherein the horizontal visual range of high speed linear array camera overlaps each other; The data of high speed linear array camera are sent to pattern process computer through optical fiber; Two groups of high speed linear array cameras and LED light source are positioned in the operating room of above output strip line and below respectively; The camera lens of described high speed linear array camera adds 600nm long wave cut-off function optical filter.The utility model adopts the remote ultra-high brightness LED light source of independent research and the imaging system of high speed linear array camera composition, the problem of the remote Uniform Illumination of high temperate zone steel imaging can be solved, investment reduction cost, ensures defect detection rate, can reduce again the misclassification rate of defect.
Description
Technical field
The utility model relates to a kind of quality on-line detecting device, specifically a kind of hot rolled sheet metal surface quality on-line detecting device.
Background technology
Due to the restriction by factors such as starting material, process conditions, production environment and equipment precision, Surfaces of Hot Rolled Strip defect recognition is that puzzlement factory improves the quality of products and throughput rate always, reduces the bottleneck problem of user quality objection.The device that Surface Defects in Steel Plate detects mainly is divided into the pick-up unit adopting conventional lossless detection technique and the defect detecting device adopting machine vision technique.Utilizing the method for machine vision to carry out quality monitoring to Surfaces of Hot Rolled Strip is a kind of very advanced thought, fully applies the achievement of development in Hi-Tech, utilizes non-contact detection method to carry out on-line real time monitoring to plate surface quality.Detection means in the past needs to use multiple area array cameras and high-power stroboscopic lamp, in addition, arranges a plate card type computing machine after each area array cameras.The plate surface quality on-line checkingi complex structure of this structure, cost are high, and the Installation and Debugging cycle is long, and artificial waste is large.
Utility model content
The technical problems to be solved in the utility model be to provide a kind of install simple, be easy to adjust and the hot rolled sheet metal surface quality on-line detecting device of remote Uniform Illumination can be realized.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
The utility model hot rolled sheet metal surface quality on-line detecting device, above output strip line and below transversely respectively install one group of high speed linear array camera and coordinate camera take pictures configuration LED light source, wherein the horizontal visual range of high speed linear array camera overlaps each other; The data of high speed linear array camera are sent to pattern process computer through optical fiber; Two groups of high speed linear array cameras and LED light source are positioned in the operating room of above output strip line and below respectively; The camera lens of described high speed linear array camera adds 600nm long wave cut-off function optical filter.
Be provided with framework in each operating room, it comprises horizontal frame and the vertical vertical framework be fixed on horizontal frame, and the sustained height of two frames of vertical framework extend horizontally away two bearing supports; LED light source is installed in light fixture, and this lamp installation is on two bearing supports; The opposite side of vertical framework installs a phase rack, and high speed linear array camera is installed in phase rack; Installation ground opening protective cover under horizontal frame, surface openings protective cover has multiple protection window, comprise LED protection window and camera lens protection window, corresponding LED illumination light source and high speed linear array camera lens, pyroceram installed by each protection window respectively.
Described multiple protection window is retractable structure.
Horizontal frame between described LED illumination light source and protection window is provided with LED window.
Described light fixture two ends are provided with angular adjustment apparatus, angular adjustment apparatus has an adjustment plate, adjustment plate is provided with cambered way, light fixture two ends are connected with adjustment plate respectively by two bolts, one of them bolt is rotationally connected in fixed position, and another bolt is fixedly connected with after adjusting in cambered way.
The maximum shooting line frequency of described high speed linear array camera is more than or equal to 36KHz, and line-scan digital camera is put according to steel plate horizontal 0.5mm pixel, and quantity determines according to Plate Production line width.
The utility model has following beneficial effect and advantage:
1. the utility model adopts the remote ultra-high brightness LED light source of independent research and the imaging system of high speed linear array camera composition, the problem of the remote Uniform Illumination of high temperate zone steel imaging can be solved, investment reduction cost, ensures defect detection rate, can reduce again the misclassification rate of defect.
2. the utility model structure is simple, cost is low, and the Installation and Debugging cycle is short, and work efficiency is high.
Accompanying drawing explanation
Fig. 1 is the utility model mounting structure schematic diagram;
Fig. 2 is the utility model structural representation;
Fig. 3 is the framed structure schematic diagram in the utility model;
Fig. 4 is the surface openings protective roof structure schematic diagram in the utility model;
Fig. 5 is the fitting structure schematic diagram in the utility model;
Fig. 6 is the phase rack schematic diagram in the utility model;
Fig. 7 is the LED light source angular adjustment apparatus structural representation in the utility model.
Wherein, 1 is output strip line, and 2 is high speed linear array camera, 3 is optical filter, and 4 is LED light source, and 5 is pattern process computer, 6 is framework, and 7 is vertical framework, and 8 is bearing support, 9 is phase rack, and 10 is horizontal frame, and 11 is surface openings protective cover, 12 is LED light source, 13 is LED window, and 14 is LED protection window, and 15 is camera lens protection window.
Embodiment
Below in conjunction with Figure of description, the present invention is further elaborated.
As shown in Figure 1, the utility model hot rolled sheet metal surface quality on-line detecting device is included in the top of output strip line 1 and below and transversely respectively installs one group of high speed linear array camera 2 and coordinate camera to take pictures the LED light source 4 of configuration, and wherein the transverse direction of high speed linear array camera 2 and longitudinal visual range overlap each other; The data of high speed linear array camera 2 are sent to pattern process computer 5 through optical fiber; Two groups of high speed linear array cameras 2 and LED light source 4 are all positioned over above output strip line 1 and in the operating room of below; The camera lens of high speed linear array camera adds 600nm long wave cut-off function optical filter 3.
In the present embodiment, in order to fixing all parts, Integral alloy frame (i.e. framework 6) is installed, firm effect is played to all parts.As shown in Figure 2,3, be provided with framework 6 in each operating room, it comprises horizontal frame 10 and the vertical vertical framework 7 be fixed on horizontal frame, and the sustained height of two frames of vertical framework 7 extend horizontally away two bearing supports 8; LED light source 12 is installed in light fixture (structure as shown in Figure 5), and the two ends of this light fixture are fixedly mounted on two bearing supports 8; The opposite side of vertical framework 7 installs a phase rack 9 (structure as shown in Figure 6), and high speed linear array camera 2 is installed in this phase rack 9; Horizontal frame 10 times installation ground opening protective covers 11, surface openings protective cover 11 has multiple protection window, in the present embodiment, multiple protection window comprises 7 LED protection windows 14 and 2 camera lens protection windows 15, position respectively with LED light source 12 and camera lens one_to_one corresponding, each protection window all installs pyroceram.Horizontal frame 10 between LED light source 12 and protection window is provided with LED window 13, makes LED light source 12 more effectively coordinate camera lens to throw light on, heat insulation printing opacity.
The setting of phase rack 9 is to protect the parts such as high speed linear array camera 2, power supply, data transmission not injure by machinery and hyperthermia radiation.LED protection window 14 is in output strip line 1 roll mill side, camera lens protection window 15 is in output strip line 1 crimping machine side, after being symmetrically welded, surface openings protective cover 11 welds completely with the ground contact portion of operating room, prevents contact portion air circulation.
As shown in Figure 4, the multiple protection windows on surface openings protective cover 11, it lays pyroceram.Pyroceram is installed in bezel, can open, and facilitates later cleaning.
The camera lens of high speed linear array camera 2 is made up of several groups of lens, and the aperture above adjustable lens and focal length realize clear picture and present.
High speed linear array camera 2 to be horizontally arranged in above output strip line 1 and corresponding below, and the horizontal visual range of camera is overlapped undetected to guarantee not occur.Require to select number of cameras according to strip width and accuracy of detection, also can carry out the adjustment of number of cameras according to the change of width.
The lens focus of high speed linear array camera 2 adopts manual focus mode, avoids auto-focusing to make a mistake.When rigging up and debugging, lens focus is adjusted does not need user to regulate to appropriate location, to avoid afocal imaging etc. and runs burnt phenomenon, publish picture impact the later stage.In order to improve the luminous sensitivity of high speed linear array camera 2,600nm long wave cut-off function filter (i.e. optical filter 3) is added before camera lens, line-scan digital camera responds Infrared, optical filter 3 is to prevent Infrared from having an impact to the gradation of image collected, and ensures accurately carrying out of image procossing.
As shown in Figure 7, light fixture two ends are provided with angular adjustment apparatus, angular adjustment apparatus has an adjustment plate, adjustment plate is provided with cambered way, light fixture two ends are connected with adjustment plate respectively by two bolts, one of them bolt is rotationally connected in fixed position, and another bolt is fixedly connected with after adjusting in cambered way.After manually adjusting the angle of LED light source, then fix two bolts at light fixture two ends with spanner, realize the light field of steel plate and the illumination of details in a play not acted out on stage, but told through dialogues, make clear picture, be conducive to finding out steel plate defect.
The work line frequency of high speed linear array camera 2 is determined by the actual motion speed of steel plate, realizes detecting in real time.In the present embodiment, the maximum shooting line frequency of high speed linear array camera 2 is not less than 36KHz, line-scan digital camera is put according to steel plate horizontal 0.5mm pixel, can carry out the resolution shooting of every 0.5mm pixel to the hot-strip of high-speed cruising, quantity determines according to Plate Production line width.In the present embodiment, arrange two groups of high speed linear array cameras in the symmetria bilateralis up and down of output strip line 1, often organize cross direction profiles 2, LED light source is also two groups, often organizes 4 ~ 8 (the present embodiment is 7).
High speed linear array cameras capture picture rich in detail, by private cable or Optical Fiber Transmission to camera acquisition and processing unit.Camera acquisition and processing unit are analyzed image by the Processing Algorithm run on wherein, filtering is not containing defective background image, carry out Iamge Segmentation and feature extraction to containing defective image, obtain the classification of this defect eventually through Decision Classfication algorithm.
The computer system of Surface Defects in Steel Plate analysis report function presents the information such as defect classification, position, size, carries out data storage, can realize online, off-line simultaneously and check.
The utility model adopts high-resolution lines array camera to obtain the band steel surface image of high-resolution, is equipped with LED light source and carries out light filling to upper and lower two surfaces of steel plate, and LED generally keeps more than 2m distance from belt steel surface, and mission life can reach 5 ~ 10 years.
The view data that line-scan digital camera catches is sent to the upper and lower surface image processing workstation in secondary chamber via optical fiber, through image processing software, image is processed, identify and massive store space carry out data storing arrive data server, for follow-up plate quality problem provides strong data record.
In practice, system is carried out scanning by imaging system to band steel upper and lower surface and is formed high-quality surface image, these view data by private cable or Optical Fiber Transmission to image variants unit, by the Processing Algorithm run on wherein, image is analyzed, filtering is not containing defective background image, Iamge Segmentation and feature extraction is carried out to containing defective image, obtain the classification of this defect eventually through Decision Classfication algorithm and presented by computer system, the operations such as data storage.
The utility model adopts machine vision technique exploitation Surfaces of Hot Rolled Strip Real-time and On-line, namely the imaging system of industrial line-scan digital camera and LED light source composition is adopted to carry out continual scanning to band steel upper and lower surface, the view data scanned is sent to camera acquisition and processing unit via private cable or optical fiber, through image processing software, image is judged, identifies, classified, point out accordingly in client according to defect hazard rating.
The utility model can carry out defects detection and classification to strip surface quality, and defect type is more complicated, greatly reduces the misclassification rate of defect.
Claims (6)
1. a hot rolled sheet metal surface quality on-line detecting device, it is characterized in that: above output strip line and below transversely respectively install one group of high speed linear array camera and coordinate camera take pictures configuration LED light source, wherein the horizontal visual range of high speed linear array camera overlaps each other; The data of high speed linear array camera are sent to pattern process computer through optical fiber; Two groups of high speed linear array cameras and LED light source are positioned in the operating room of above output strip line and below respectively; The camera lens of described high speed linear array camera adds 600nm long wave cut-off function optical filter.
2. by hot rolled sheet metal surface quality on-line detecting device according to claim 1, it is characterized in that: in each operating room, be provided with framework, it comprises horizontal frame and the vertical vertical framework be fixed on horizontal frame, and the sustained height of two frames of vertical framework extend horizontally away two bearing supports; LED light source is installed in light fixture, and this lamp installation is on two bearing supports; The opposite side of vertical framework installs a phase rack, and high speed linear array camera is installed in phase rack; Installation ground opening protective cover under horizontal frame, surface openings protective cover has multiple protection window, comprise LED protection window and camera lens protection window, corresponding LED illumination light source and high speed linear array camera lens, pyroceram installed by each protection window respectively.
3., by hot rolled sheet metal surface quality on-line detecting device according to claim 2, it is characterized in that: described multiple protection window is retractable structure.
4. by hot rolled sheet metal surface quality on-line detecting device according to claim 2, it is characterized in that: the horizontal frame between described LED illumination light source and protection window is provided with LED window.
5. by hot rolled sheet metal surface quality on-line detecting device according to claim 2, it is characterized in that: described light fixture two ends are provided with angular adjustment apparatus, angular adjustment apparatus has an adjustment plate, adjustment plate is provided with cambered way, light fixture two ends are connected with adjustment plate respectively by two bolts, one of them bolt is rotationally connected in fixed position, and another bolt is fixedly connected with after adjusting in cambered way.
6. by hot rolled sheet metal surface quality on-line detecting device according to claim 1, it is characterized in that: the maximum shooting line frequency of described high speed linear array camera is more than or equal to 36KHz, line-scan digital camera is put according to steel plate horizontal 0.5mm pixel, and quantity determines according to Plate Production line width.
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| CN201520299422.3U CN204556517U (en) | 2015-05-11 | 2015-05-11 | Hot rolled sheet metal surface quality on-line detecting device |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105136810A (en) * | 2015-08-27 | 2015-12-09 | 张小磊 | Steel plate defect detecting platform based on high-strength lighting |
| CN105547167A (en) * | 2016-03-11 | 2016-05-04 | 中冶赛迪电气技术有限公司 | Strip steel width measuring system and method based on machine vision |
| CN107247058A (en) * | 2017-07-04 | 2017-10-13 | 浙江恒石纤维基业有限公司 | Glass tricot machine foreign matter on-line measuring device |
| CN108195762A (en) * | 2018-03-16 | 2018-06-22 | 鞍钢未来钢铁研究院有限公司 | A kind of micromatic setting and method for realizing line scan camera detection steel defect |
| WO2019062296A1 (en) * | 2017-09-27 | 2019-04-04 | 深圳精创视觉科技有限公司 | Glass flaw detecting device |
| CN109738459A (en) * | 2019-03-06 | 2019-05-10 | 国福节能开发有限公司 | Surface cleanness on-line monitoring system |
| CN110530870A (en) * | 2018-05-24 | 2019-12-03 | 塞米西斯科株式会社 | The system and method for defect are checked in cavity |
| CN111413347A (en) * | 2020-04-28 | 2020-07-14 | 河北鑫达钢铁集团有限公司 | H shaped steel surface defect on-line measuring device |
| CN112718881A (en) * | 2019-10-28 | 2021-04-30 | 南京智欧智能技术研究院有限公司 | Method and device for detecting surface defects of hot-rolled steel material |
| CN112881416A (en) * | 2021-03-01 | 2021-06-01 | 湖北工程学院 | Steel plate surface quality detection system based on 2D detection and 3D measurement |
| CN112881403A (en) * | 2021-01-08 | 2021-06-01 | 王玮佳 | Hot rolling strip steel surface defect detection device |
| CN113203741A (en) * | 2021-05-08 | 2021-08-03 | 苏州中连智能科技有限公司 | Opposite lighting transparent panel flaw detection method |
| CN113281341A (en) * | 2021-04-19 | 2021-08-20 | 唐山学院 | Detection optimization method of double-sensor surface quality detection system of hot-dip galvanized strip steel |
| WO2021218386A1 (en) * | 2020-04-28 | 2021-11-04 | 宝山钢铁股份有限公司 | Continuous casting billet surface detection system and method based on two-dimensional and three-dimensional combined imaging |
| CN114018934A (en) * | 2021-11-03 | 2022-02-08 | 四川启睿克科技有限公司 | Imaging system for detecting surface defects of arc-shaped metal |
| CN115129037A (en) * | 2021-03-26 | 2022-09-30 | 宝山钢铁股份有限公司 | Automatic edge searching device and method based on thick plate 3D visual detection system |
| CN115308218A (en) * | 2022-10-11 | 2022-11-08 | 中材节能股份有限公司 | Calcium silicate board surface defect on-line measuring system |
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2015
- 2015-05-11 CN CN201520299422.3U patent/CN204556517U/en active Active
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105136810A (en) * | 2015-08-27 | 2015-12-09 | 张小磊 | Steel plate defect detecting platform based on high-strength lighting |
| CN105547167A (en) * | 2016-03-11 | 2016-05-04 | 中冶赛迪电气技术有限公司 | Strip steel width measuring system and method based on machine vision |
| CN105547167B (en) * | 2016-03-11 | 2018-07-03 | 中冶赛迪电气技术有限公司 | Strip width measuring system and method based on machine vision |
| CN107247058A (en) * | 2017-07-04 | 2017-10-13 | 浙江恒石纤维基业有限公司 | Glass tricot machine foreign matter on-line measuring device |
| WO2019062296A1 (en) * | 2017-09-27 | 2019-04-04 | 深圳精创视觉科技有限公司 | Glass flaw detecting device |
| CN108195762A (en) * | 2018-03-16 | 2018-06-22 | 鞍钢未来钢铁研究院有限公司 | A kind of micromatic setting and method for realizing line scan camera detection steel defect |
| CN108195762B (en) * | 2018-03-16 | 2024-03-26 | 鞍钢集团北京研究院有限公司 | Fine adjustment device and method for detecting strip steel defects by using line scanning camera |
| CN110530870A (en) * | 2018-05-24 | 2019-12-03 | 塞米西斯科株式会社 | The system and method for defect are checked in cavity |
| CN109738459A (en) * | 2019-03-06 | 2019-05-10 | 国福节能开发有限公司 | Surface cleanness on-line monitoring system |
| CN112718881A (en) * | 2019-10-28 | 2021-04-30 | 南京智欧智能技术研究院有限公司 | Method and device for detecting surface defects of hot-rolled steel material |
| CN111413347A (en) * | 2020-04-28 | 2020-07-14 | 河北鑫达钢铁集团有限公司 | H shaped steel surface defect on-line measuring device |
| WO2021218386A1 (en) * | 2020-04-28 | 2021-11-04 | 宝山钢铁股份有限公司 | Continuous casting billet surface detection system and method based on two-dimensional and three-dimensional combined imaging |
| CN112881403A (en) * | 2021-01-08 | 2021-06-01 | 王玮佳 | Hot rolling strip steel surface defect detection device |
| CN112881416A (en) * | 2021-03-01 | 2021-06-01 | 湖北工程学院 | Steel plate surface quality detection system based on 2D detection and 3D measurement |
| CN112881416B (en) * | 2021-03-01 | 2024-02-27 | 湖北工程学院 | Steel plate surface quality detection system based on 2D detection and 3D measurement |
| CN115129037A (en) * | 2021-03-26 | 2022-09-30 | 宝山钢铁股份有限公司 | Automatic edge searching device and method based on thick plate 3D visual detection system |
| CN113281341A (en) * | 2021-04-19 | 2021-08-20 | 唐山学院 | Detection optimization method of double-sensor surface quality detection system of hot-dip galvanized strip steel |
| CN113203741B (en) * | 2021-05-08 | 2023-02-17 | 苏州中连智能科技有限公司 | Opposite lighting transparent panel flaw detection method |
| CN113203741A (en) * | 2021-05-08 | 2021-08-03 | 苏州中连智能科技有限公司 | Opposite lighting transparent panel flaw detection method |
| CN114018934A (en) * | 2021-11-03 | 2022-02-08 | 四川启睿克科技有限公司 | Imaging system for detecting surface defects of arc-shaped metal |
| CN114018934B (en) * | 2021-11-03 | 2023-11-03 | 四川启睿克科技有限公司 | Imaging system for arc-shaped metal surface defect detection |
| CN115308218A (en) * | 2022-10-11 | 2022-11-08 | 中材节能股份有限公司 | Calcium silicate board surface defect on-line measuring system |
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