CN201527404U - Online detector for flaw of glass with surface amboss - Google Patents
Online detector for flaw of glass with surface amboss Download PDFInfo
- Publication number
- CN201527404U CN201527404U CN2009200651083U CN200920065108U CN201527404U CN 201527404 U CN201527404 U CN 201527404U CN 2009200651083 U CN2009200651083 U CN 2009200651083U CN 200920065108 U CN200920065108 U CN 200920065108U CN 201527404 U CN201527404 U CN 201527404U
- Authority
- CN
- China
- Prior art keywords
- glass plate
- glass
- flaw
- light source
- slit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model relates to an online detector for flaw of glass with surface amboss, wherein array CCD line scanning cameras are arranged above a glass plate and are transversely arranged along the width direction of the glass plate, the glass plate moves along the lengthwise direction under the action of a driving roller table on a rack, two rows of LED online lateral lighting sources are arranged respectively on two sides below the glass plate of the scanning lines of the array CCD line scanning cameras, a slit is formed between two uniform strip lateral lighting sources with certain intervals, and structured light illumination is formed in the slit zone. The flaw of the glass forms a gray level image with certain structure after being scanned by the CCD line scanning cameras, instead of light spots or dark spots only; and according to different features of the gray level image with certain structure, a computer distinguishes air bubbles from white stones. The online detector not only can detect black flaws of non-transparent objects and bright flaws such as the air bubbles and the like, but also can detect the white stones and distinguish the white stones from the air bubbles, and has high light intensity, high signal-to-noise ratio, large signals, accurate detection, good precision, continuous operation and high efficiency.
Description
Technical field:
The utility model relates to a kind of pick-up unit, particularly relates to a kind of surface embossing glass blemishes on-line measuring device.
Background technology:
The online flaws such as bubble small on the glass plate, calculus that detect of surface embossing glass blemishes online detection requirements, and the kind of differentiation flaw.Because the interference of glass body decorative pattern, online detection of Embossing glass flaw and classification are very difficult things, no matter are CCD imagings or with microscope naked eyes Direct observation, even all can not obtain the complete image of flaw.The detection of ordinary plate glass flaw and sorting technique all no longer adapt to.Different types of flaw has different optical properties in the not bad Embossing glass, adopts different optical detection passages can go out different types of flaw.
Usually adopt the bright field sense channel and the dark field detection passage of fluorescent light source illumination to carry out online detection.Shown in accompanying drawing 1, accompanying drawing 2:
The bright field sense channel adopts the bright background light source of uniform diffusion, CCD aims at background bright field (light source), to the glass plate imaging between process CCD and the background bright field, as shown in Figure 1, light intensity signal curve and background luminance do not reach or near system's maximal value, view field image shows as light tone when having flaw in the glass plate body; When black flaws such as opaque materials such as calculus are arranged in the vitreum, can form the blackspot video.As Fig. 3 and Fig. 5, shown in Figure 6:
Under this very similar as even illumination, with the little blackspot on the CCD detection blank sheet of paper.It is highly effective that bright passage " is deceived " flaw to detection (opaque), but for detecting transparent flaw such as bubble and translucent flaw as homophase vitreum snotter is then not powerless.
The dark field detection passage adopts black seam light source, as shown in Figure 2, observer or CCD camera be direct alignment light source but aim at black seam between two light sources, (CCD that adopts is a line scan camera, it is only to a linear slit imaging, relies on detected glass to move along a direction and is scanned into the two dimensional surface picture).When in the vitreum during no foreign matter, imaging is a black background, and light intensity signal curve and background luminance reach or near system's minimum value, view field image shows as the most dark-coloured; When bright flaw such as bubble is arranged in the glass plate body and since bubble to the scattering angle of light greater than the scattering angle of Embossing glass body decorative pattern to light, thereby form a black background bubble bright spot picture down, seem the starlight in the dark-sky.As Fig. 4 and Fig. 7, shown in Figure 8.It is highly effective helping secretly detecting " bright " flaw (scattering asterism), but then powerless for detecting " deceiving " flaw such as calculus.
By different sense channels, said system can detect and classify automatically typical bubble and black calculus, but can detect and can not distinguish for the white calculus of a class, reason be the white calculus of this class bright, help secretly output all arranged, and show as dim spot at bright passage equally and show as bright spot helping secretly.Said system adopts fluorescent lamp lighting in addition, a little less than the intensity of light source, cause a little less than the signal intensity, and whole detection device takes up room greatly.
Summary of the invention:
Technical problem to be solved in the utility model is: solve the problem that above-mentioned prior art exists, and provide a kind of surface embossing glass blemishes on-line measuring device, can not only detect bright flaws such as black flaw of opaque materials and bubble, and can detect white calculus and distinguish with bubble, light intensity is big, the signal to noise ratio (S/N ratio) height, signal intensity is big, detection is accurate, precision is high, works continuously the efficient height.
The technical solution adopted in the utility model is: surface embossing glass blemishes on-line measuring device of the present utility model, multiple tracks is installed on frame drives roller-way, carrying also drives the embossing glass plate, CCD line scan camera array is installed above glass plate, and along width of glass sheet direction lateral arrangement, cover the width of whole glass plate, online side direction Structured Illumination light source is installed below glass plate, online side direction Structured Illumination light source is made of two row LED particles, every LEDs is got side, illuminating glass plate under the oblique slave plate, be that N LEDs particle is got the same space attitude and is arranged in a row, form an even strip lateral light lighting source, equally, the spatial attitude of N LEDs particle negate symmetry is arranged in another row in addition, form another even strip lateral light lighting source, divide between the two strip lateral light lighting sources to form slit at a certain distance, form Structured Illumination in slit area.
In the technique scheme, under slit central authorities, be equipped with one and connect the wide light source background bar of whole plate.
In the technique scheme, the light source background bar of installing under slit central authorities is the black light-absorbing material.
In the technique scheme, the light source background bar of installing under slit central authorities is the reflectorized material with certain reflection potential.
Substantive distinguishing features and effect that the utility model is outstanding:
1, adopts online side structure optical illumination light source, flaw under this light illumination in the detected glass plate body has a fixed structure by the gray level image that CCD scanning back forms, can detect and distinguish bubble and calculus in vain according to the different architectural feature computing machine of structure gray level image;
2, adopt an online side structure optical illumination ash light source, light intensity signal curve and background luminance are not positioned near system's intermediate value when having flaw in the detected glass plate body, and view field image shows as grey; When black flaws such as opaque materials such as calculus are arranged in the vitreum, can form dark flaw structure gray level image, when in the vitreum bubble being arranged etc. during bright flaw, a bright flaw structure gray level image under the grey background can be formed, bright flaw and black flaw can be detected and distinguish according to the different brightness of structure gray level image;
3, adopt the high-power LED array light source, illumination light intensity is much larger than common fluorescent lamp lighting, thereby obtains better signal to noise ratio (S/N ratio) and bigger signal intensity, and the while volume and the occupation space of checkout equipment is also much smaller.
Description of drawings:
Fig. 1 is a bright field sense channel synoptic diagram
Fig. 2 is the dark field detection access diagram
Fig. 3 is a bright field light intensity signal curve map
Fig. 4 is details in a play not acted out on stage, but told through dialogues light intensity signal curve figure
Fig. 5 is the utility model surface embossing glass blemishes on-line measuring device front elevation
Fig. 6 is the side view of Fig. 5
Fig. 7 is the online lateral light lighting source of a utility model vertical view
Fig. 8 is the online lateral light lighting source of a utility model left view
Fig. 9 is an ash light source intensity signature tune line chart
Embodiment:
This surface embossing glass blemishes online test method is: CCD line scan camera 1 is installed in glass plate 2 tops, CCD line scan camera 1 array is along width of glass sheet direction lateral arrangement, and cover whole glass plate 2 width, glass plate drives the effect lower edge lengthwise movement of roller-way 4 on frame 3, the both sides apportion is installed the online lateral light lighting source 6 of two row LED below the glass plate of array CCD line scan camera 1 sweep trace 5, every LEDs 9 is got illuminating glass plate under side, the oblique slave plate, and the scanning that array CCD line scan camera 1 is finished whole glass plate detects.
Above-mentioned N LED particle got the same space attitude and is arranged in a row, form an even strip lateral light lighting source 6, equally, the spatial attitude of N LED particle negate symmetry is arranged in another row in addition, form another even strip lateral light lighting source 6, divide between the two even strip lateral light lighting sources 6 to form slit 7 at a certain distance, form Structured Illumination in slit area.Flaw under Structured Illumination in the detected glass plate body forms the gray level image with a fixed structure by CCD line scan camera scanning back, and is not only hot spot or blackening, and according to the different characteristic of structure gray level image, computing machine is distinguished bubble and white calculus.
Surface embossing glass blemishes on-line measuring device of the present utility model, multiple tracks is installed on frame 3 drives roller-way 4, carrying also drives embossing glass plate 2, CCD line scan camera 1 array is installed above glass plate 2, and along width of glass sheet direction lateral arrangement, cover the width of whole glass plate 2, online side direction Structured Illumination light source 6 is installed below glass plate, online side direction Structured Illumination light source 6 is made of two row LED particles, every LEDs 9 is got side, illuminating glass plate under the oblique slave plate, be that N LEDs particle is got the same space attitude and is arranged in a row, form an even strip lateral light lighting source, equally, the spatial attitude of N LEDs particle negate symmetry is arranged in another row in addition, form another even strip lateral light lighting source, divide between the two strip lateral light lighting sources to form slit at a certain distance, form Structured Illumination in slit area.
The above-mentioned wide light source background bar 8 of a whole plate of perforation that under slit central authorities, is equipped with.
The above-mentioned light source background bar of installing under slit central authorities 8 is the black light-absorbing material.
In the technique scheme, the reflectorized material of light source background bar 8 of under slit central authorities, installing for having certain reflection potential.
Referring to Fig. 9, Figure 10, front elevation and side view that this installs online installation have been shown, CCD line scan camera array is arranged along glass plate horizontal (Width), cover the width of whole glass plate, glass plate is in the effect lower edge lengthwise movement that drives roller-way, thereby the scanning of finishing whole glass plate detects.
Referring to Figure 11, Figure 12, be the description view of online side direction Structured Illumination light source.Online lateral light lighting source is made of two row LED particles, every LEDs 9 is got illuminating glass plate under side, the oblique slave plate, light is injected glass plate along the low-angle of nearly vertical glass plate direction of motion, only in this way longitudinally the light-receiving area of the flaw bodies such as line bubble of orientation is just maximum, thereby produces maximum signal intensity.As Figure 11, shown in Figure 12, N LEDs particle is got the same space attitude and is arranged in a row, and forms an even strip lateral light lighting source, and is same, the spatial attitude of N LEDs particle negate symmetry is arranged in another row in addition, forms another even strip lateral light lighting source; Two strip sidelights divide between lighting source and form slit at a certain distance, form Structured Illumination in slit area; Flaw under Structured Illumination in the detected glass plate body forms the gray level image with a fixed structure by CCD scanning back, and is not only speck or blackening, and according to the different characteristic of structure gray level image, computing machine can be distinguished bubble and white calculus.
Under slit central authorities, have one to connect the wide light source background bar of whole plate.
When slit central source background bar is the black light-absorbing material, constitute online lateral light illumination dark field, can propose the more high brightness illumination of signal to noise ratio (S/N ratio) to slight flaws;
When slit central source background bar is when having the reflectorized material of certain reflection potential, light source background bar can reflect up the background that formation has certain brightness with the surplus light of LED, constitutes an online side direction Structured Illumination ash light source.When adopting an online side light ash light source to detect its light intensity signal curve as shown in figure 13, light intensity signal curve and background luminance are not positioned near system's intermediate value when having flaw in the detected glass plate body, view field image shows as grey; When black flaws such as opaque materials such as calculus are arranged in the vitreum, can form dark flaw blackspot video, during bright flaw, a bright flaw image under the grey background can be formed when in the vitreum bubble being arranged etc., bright flaw and black flaw can be detected and distinguish according to the different brightness of structure gray level image.
Range of application:
This application of installation detects online in the flaw of surface embossed plate glass and ordinary plate glass production line; Also can be applicable to other and have the transparent of similar demand or the detection of opaque flakes surface quality of strips, such as solar energy glass production line, ostentatious glass production line, lattice method glass production line, horizontal drawing glass production line, the online quality controls such as methacrylate sheet production line.
Utility model feature of the present utility model and protection domain:
1, surface embossing glass blemishes on-line measuring device is characterized in that having adopted online side direction Structured Illumination light source;
2, online side direction Structured Illumination light source is characterized as:
A, consisted of by two row's LED particles, every LEDs is got illuminating glass plate under side, the oblique slave plate, light is injected glass plate along the low-angle of the nearly vertical glass plate direction of motion, N LEDs particle is got the same space attitude and is arranged in a row, form an even strip-shaped side light light source, equally, N LEDs particle is got antisymmetric spatial attitude and is arranged in another row in addition, forms another even strip-shaped side light light source; Divide between the two strip side light light sources to form at a certain distance slit, form Structured Illumination in slit area; Flaw under Structured Illumination in the detected glass plate body forms the gray level image with a fixed structure by CCD scanning is rear, and is not only bright spot or dim spot, can distinguish bubble and white calculus according to the different characteristic computer of structure gray level image.
B, have the online side structure optical illumination of feature A light source, under its slit central authorities, have one to connect the wide light source background bar of whole plate. When slit central source background bar is the black light-absorbing material, consist of online side light dark field, can propose the more high brightness illumination of signal to noise ratio to slight flaws;
C, have the online side structure optical illumination of feature A light source, under its slit central authorities, have one to connect the wide light source background bar of whole plate. When slit central source background bar is when having the reflectorized material of certain albedo, light source background bar can reflect up the LED remaining light background that formation has certain brightness, consists of an online side light ash light source. Light intensity signal curve and background luminance are not positioned near system's median when having flaw in the detected glass plate body, and view field image shows as grey; When the black flaws such as opaque materials such as calculus are arranged in the vitreum, can form dark flaw structure video, when in the vitreum bubble being arranged etc. during bright flaw, a bright flaw structure image under the grey background can be formed, bright flaw and black flaw can be detected and distinguish according to the different brightness of structure gray level image.
Claims (4)
1. surface embossing glass blemishes on-line measuring device, it is characterized in that on frame, installing multiple tracks and drive roller-way, carrying also drives the embossing glass plate, CCD line scan camera array is installed above glass plate, and along width of glass sheet direction lateral arrangement, cover the width of whole glass plate, online side direction Structured Illumination light source is installed below glass plate, online side direction Structured Illumination light source is made of two row LED particles, every LEDs is got side, illuminating glass plate under the oblique slave plate, be that N LEDs particle is got the same space attitude and is arranged in a row, form an even strip lateral light lighting source, equally, the spatial attitude of N LEDs particle negate symmetry is arranged in another row in addition, form another even strip lateral light lighting source, divide between the two strip lateral light lighting sources to form slit at a certain distance, form Structured Illumination in slit area.
2. surface embossing glass blemishes on-line measuring device according to claim 1 is characterized in that being equipped with one and connects the wide light source background bar of whole plate under slit central authorities.
3. surface embossing glass blemishes on-line measuring device according to claim 2 is characterized in that the light source background bar of installing is the black light-absorbing material under slit central authorities.
4. surface embossing glass blemishes on-line measuring device according to claim 2 is characterized in that the light source background bar of installing is a reflectorized material under slit central authorities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200651083U CN201527404U (en) | 2009-04-24 | 2009-04-24 | Online detector for flaw of glass with surface amboss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200651083U CN201527404U (en) | 2009-04-24 | 2009-04-24 | Online detector for flaw of glass with surface amboss |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201527404U true CN201527404U (en) | 2010-07-14 |
Family
ID=42518689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200651083U Expired - Fee Related CN201527404U (en) | 2009-04-24 | 2009-04-24 | Online detector for flaw of glass with surface amboss |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201527404U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102368055A (en) * | 2011-09-06 | 2012-03-07 | 安徽科宏玻璃机械有限公司 | Coated sheet glass light checkout stand |
| CN101871896B (en) * | 2009-04-24 | 2012-11-14 | 湖南科创信息技术股份有限公司 | On-line detection method and device for surface embossing glass blemishes |
| WO2013097215A1 (en) * | 2011-12-31 | 2013-07-04 | Saint-Gobain Glass France | An illumination system for detecting the defect in a transparent substrate and a detection system including the same |
| CN106814077A (en) * | 2015-11-27 | 2017-06-09 | 楚天科技股份有限公司 | A kind of method and device for detecting foreign matter in bottles or defect |
| CN107621469A (en) * | 2016-07-15 | 2018-01-23 | 克朗斯股份公司 | Container inspection arrangement with multiple lighting devices |
| CN109856049A (en) * | 2018-12-14 | 2019-06-07 | 杭州元色科技有限公司 | Clear sheet Defect Detection total internal reflection light gatherer and slide glass method |
| CN109975324A (en) * | 2019-05-05 | 2019-07-05 | 苏州天准科技股份有限公司 | A kind of Structured Illumination flaw detection method based on square wave configuration |
| CN110031482A (en) * | 2019-05-05 | 2019-07-19 | 苏州天准科技股份有限公司 | A kind of glass flaws detection method based on reflective structure optical illumination |
| CN114937041A (en) * | 2022-07-25 | 2022-08-23 | 聊城市博源节能科技有限公司 | Method and system for detecting defects of copper bush of oil way of automobile engine |
-
2009
- 2009-04-24 CN CN2009200651083U patent/CN201527404U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101871896B (en) * | 2009-04-24 | 2012-11-14 | 湖南科创信息技术股份有限公司 | On-line detection method and device for surface embossing glass blemishes |
| CN102368055A (en) * | 2011-09-06 | 2012-03-07 | 安徽科宏玻璃机械有限公司 | Coated sheet glass light checkout stand |
| WO2013097215A1 (en) * | 2011-12-31 | 2013-07-04 | Saint-Gobain Glass France | An illumination system for detecting the defect in a transparent substrate and a detection system including the same |
| CN106814077A (en) * | 2015-11-27 | 2017-06-09 | 楚天科技股份有限公司 | A kind of method and device for detecting foreign matter in bottles or defect |
| CN107621469A (en) * | 2016-07-15 | 2018-01-23 | 克朗斯股份公司 | Container inspection arrangement with multiple lighting devices |
| CN109856049A (en) * | 2018-12-14 | 2019-06-07 | 杭州元色科技有限公司 | Clear sheet Defect Detection total internal reflection light gatherer and slide glass method |
| CN109975324A (en) * | 2019-05-05 | 2019-07-05 | 苏州天准科技股份有限公司 | A kind of Structured Illumination flaw detection method based on square wave configuration |
| CN110031482A (en) * | 2019-05-05 | 2019-07-19 | 苏州天准科技股份有限公司 | A kind of glass flaws detection method based on reflective structure optical illumination |
| CN114937041A (en) * | 2022-07-25 | 2022-08-23 | 聊城市博源节能科技有限公司 | Method and system for detecting defects of copper bush of oil way of automobile engine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201527404U (en) | Online detector for flaw of glass with surface amboss | |
| CN101871896B (en) | On-line detection method and device for surface embossing glass blemishes | |
| CN1293381C (en) | Method and device for inspecting defect of sheet-shaped transparent body | |
| US9110035B2 (en) | Method and system for detecting defects of transparent substrate | |
| KR101442871B1 (en) | A system for illuminating a sheet material and method thereof | |
| EP2401603A1 (en) | System and method for detecting defects of substrate | |
| CN201555106U (en) | Special light source for large area vision detection | |
| CN108267460A (en) | For the matrix form vision detection system and method for transparent material defects detection | |
| CN106556607B (en) | Identify the device and method of panel surface dust | |
| CN109804238A (en) | Optical detection device | |
| CN102384908A (en) | Device and method for checking internal defects of base plate | |
| JPH11337504A (en) | Inspection method and apparatus for discriminating defects in glass sheet | |
| JP2006266933A (en) | Method and apparatus for inspecting defect in transparent plate | |
| CN207866734U (en) | Matrix form vision detection system for transparent material defects detection | |
| CN110702699B (en) | Rolled glass defect detection device and method | |
| CN206440629U (en) | A kind of device for being used to detect the layering of plate glass board defect | |
| JP2013501211A (en) | Method and system for detecting and classifying defects in a substrate | |
| CN101783855A (en) | Contact-type image sensor | |
| CN212207143U (en) | Optical automatic detection device for light guide plate | |
| CN114390152A (en) | Contact type image sensor for detecting micro concave-convex and application thereof | |
| CN211825761U (en) | Rolled glass defect detection device | |
| KR20020061476A (en) | panel inspecting apparatus and inspecting method for panel | |
| CN203632747U (en) | Multispectral stereo CIS scan module and corresponding bill scan imaging system | |
| CN2535154Y (en) | Image pickup device for bard steel surface defect inspection | |
| CN2786621Y (en) | Calibrating apparatus for multi-linear array video camera examining system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100714 Termination date: 20110424 |