CN201917325U - Off-line detection device for optical deflection angle of float glass - Google Patents
Off-line detection device for optical deflection angle of float glass Download PDFInfo
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- CN201917325U CN201917325U CN2010206167551U CN201020616755U CN201917325U CN 201917325 U CN201917325 U CN 201917325U CN 2010206167551 U CN2010206167551 U CN 2010206167551U CN 201020616755 U CN201020616755 U CN 201020616755U CN 201917325 U CN201917325 U CN 201917325U
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- 239000005329 float glass Substances 0.000 title claims abstract description 25
- 230000003287 optical effect Effects 0.000 title claims abstract description 25
- 238000001514 detection method Methods 0.000 title abstract description 14
- 239000011521 glass Substances 0.000 claims abstract description 40
- 241000283070 Equus zebra Species 0.000 claims abstract description 29
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000007547 defect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 14
- 238000012360 testing method Methods 0.000 description 13
- 238000005516 engineering process Methods 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 230000002950 deficient Effects 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000006124 Pilkington process Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 208000003464 asthenopia Diseases 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 238000013441 quality evaluation Methods 0.000 description 1
- 238000012372 quality testing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Abstract
The utility model discloses an off-line detection device for an optical deflection angle of a float glass. The detection device comprises a glass clamp workbench and a motor driving device, wherein a degree-marking device is arranged on the glass clamp workbench in a coaxial way; the motor driving device drives the glass clamp workbench to revolve; one side of the glass clamp workbench is provided with a zebra screen; the other side of the glass clamp workbench is provided with a camera; the focal point of the camera locates at the center of the detected-to-be glass and the central line of the zebra screen, meanwhile, the focal length at the object side aims at the zebra screen; the signals of the camera are sent to the computer; the control-signal end of the motor driving device is connected with the computer; and a red light-emitting diode illuminant surface is arranged under the zebra screen. The detection device can analyze the stripes by adopting the computer, the detection objectivity can be guaranteed, and the subtle defects on the float glass and the changes of the optical property can be intensified; and the detection device has a simple structure and is easy to install and operate.
Description
Technical field
The utility model belongs to the float glass optical detective technology, is specifically related to a kind of float glass optical skew angle detecting device.
Background technology
In float glass quality inspection index, optical skew is a most important technical indicator.So-called optical skew is meant when the people sees through the glass observing scene, because of the out-of-flatness of glass surface and the inhomogeneous scenery deformation extent that produces of inner refractive index, all unifies both at home and abroad at present to adopt the zebra method to come the optical skew of test evaluation float glass.
The online detection of float glass is the application category of machine vision technique in the industrial detection field.Traditional detection method to float glass optical skew angle mainly is to carry out artificial naked-eye observation by the zebra instrument, and this method causes visual fatigue easily, and different observers often has different results, thereby is difficult to objective evaluation is carried out at the optical skew angle of product.Along with the continuous development of modern glass deep process, also more and more higher to the quality requirements of glass raw sheet, be difficult to gradually meet the demands the day by day actual needs of the float glass that increases of the detection mode of artificial observation.Therefore, guarantee the float glass quality, the automatic detection of the float glass quality being carried out online optical skew angle just seems very important comprehensively.
Therefore, estimate the automatic test difficult problem of float glass optical skew quality in order to solve the zebra method, carried out number of research projects at present both at home and abroad and developed corresponding commercial testing apparatus, the method for testing of these testing apparatuss is mainly divided following two classes:
The first kind is to adopt other optical meanss to carry out deformation measurement, then the parameter of being surveyed is scaled the zebra angle.There is the Innomess company of Germany in the main offshore company that produces this method testing apparatus, German Lasor company, the Image Automation company of Britain and Inspection Systems company.Domestic also have a few family units that research and development have for many years been carried out in this work, but all do not have successfully.The principal feature of this method is that measuring speed is fast, be fit to very much the quality testing of float glass product line, its main application is for detecting the various defectives in the float glass process, so this class testing method and testing apparatus are at home and abroad generally used on the floatation glass production line.But for this evaluation float glass optical skew quality-critical parameter of zebra method, these class methods are not strong point, it is that optical skew is also handled as a kind of defective, so, though this kind equipment also can provide the test data at zebra angle, but also can only characterize the zebra angle qualitatively at a certain angular range, and can not accurately measure the zebra angle of float glass optical skew quality, to satisfy the requirement of float glass quality grading.Therefore, float glass producer generally also needs to be equipped with the testing apparatus that is specifically designed to measurement zebra angle both at home and abroad.In addition, this kind equipment is bulky, involve great expense, and Installation and Debugging are very complicated, and the evaluation test that is not suitable for quality inspection department is used.
The second class zebra angular measurement examination equipment is exactly complete zebra angular measurement method for testing requirement according to classics, adopt Moire fringe technology that the optical skew angle of glass is amplified, and employing computer image processing technology, deformation pattern after amplifying is handled, thereby improve measuring accuracy and realize automatic measurement, and effectively raise the reliability of quality evaluation, still there is more problem in this method, before domestic enterprise rarely have use.
Summary of the invention
The purpose of this utility model is to provide a kind of simple off-line float glass optical skew angle detecting device, to address the above problem.
The technical solution of the utility model is: off-line float glass optical skew angle detecting device, it comprises glass clamping worktable, the coaxial number of degrees indication device that is provided with on the glass clamping worktable, drive glass clamping worktable motor rotating gearing, one side of glass clamping worktable is provided with the zebra screen, the opposite side of glass clamping worktable is provided with a video camera, video camera focus be positioned on the line of centres of detected center of glass and zebra screen, the object plane focal length of simultaneous camera is aimed at the zebra screen; The signal of video camera outputs to computing machine, and the control signal end of transmission gear for electric motor is connected with computing machine, and the zebra screen has the red light emitting diodes surface of light source.
Described video camera is an Array CCD Camera.
The utility model device can carry out the collection of each position realtime graphic to glass to be measured, and can calculate and measure the number of degrees at glass optical skew angle automatically.Particularly, the utility model device has following characteristics:
(1) the utility model has adopted the bus transfer control mode, and the network transmission function of view data and steering order possesses many equipment networkings function;
(2) the utility model device adopts computing machine that striped is analyzed the effective objectivity that has guaranteed detection, and trickle defective and the optical property that can strengthen on the float glass change; It is simple in structure, and fitting operation is convenient.
Description of drawings
Fig. 1 off-line float glass optical skew angle detecting device synoptic diagram.
The Computer Processing schematic flow sheet of Fig. 2 the utility model device.
Embodiment
As shown in Figure 1, the coaxial number of degrees indication device 2 that is provided with on the glass clamping worktable 1, driving glass clamping worktable motor rotating gearing 3 is located on the glass clamping worktable 1, one side of glass clamping worktable 1 is provided with zebra screen 4, glass 5 is clamped on the glass clamping worktable 1, above structure is identical with existing mechanism, not tired stating.Zebra is shielded 4 belows and is provided with red light emitting diodes surface of light source 6.Can specifically being provided with of red light emitting diodes surface of light source 6 according to the equipment layout condition at scene, as red light emitting diodes being arranged in the light source cabinet, the light source cabinet is positioned at the below of zebra screen 4, and is positioned at before the transverse cutting unit on the glass production line; The top of light source cabinet has slit, and it is vertical that this slit and zebra are shielded 4 directions.
The opposite side of glass clamping worktable 1 is provided with a table top battle array ccd video camera 7, and the signal output of video camera is linked computing machine 8 by 1394 buses, and the control signal end of transmission gear for electric motor 3 is connected with computing machine by industrial field bus.Video camera 1 focus be positioned on the line of centres of detected center of glass and zebra screen, the object plane focal length of simultaneous camera is aimed at the zebra screen.
As shown in Figure 2, the course of work of this device: computing machine carries out image acquisition according to the position motion READY signal controlling camera that motor provides, the image of gathering is carried out the judgement and the analysis of striped flexibility, judge that testing result is whether in sensing range, if satisfy condition, then the output angle number of degrees are controlled the instruction that motor rotates otherwise export, carry out the acquisition process cycle next time, meet the demands up to the striped degree of crook; Concrete:
(1). before the detection beginning, the glass product information that the user is relevant to computer installation earlier, as the glass grade, detection level detects requirement etc., sets up the glass defect database, finishes the setting of image acquisition parameter;
(2). computing machine 8 sends sense command to motor, and transmission gear for electric motor 3 drives glass clamping worktable 1 and the number of degrees indication device 2 backcasting machine that makes zero and sends the Ready signal;
(3). computing machine 8 begins image acquisition after receiving the Read signal;
(4). carry out Flame Image Process, obtain the degree of crook of striped;
(5). computing machine 8 judges whether satisfy to detect requirement according to result of calculation, if satisfy then show current reading, otherwise drive motor drives the worktable θ that rotates to an angle;
(6). after glass clamping worktable 1 arrives specified angle, send the Ready signal again, restart image acquisition;
(7). repeat the process of 4-6, satisfy to detect requiring back output reading up to striped.
Claims (2)
1. off-line float glass optical skew angle detecting device, it comprises glass clamping worktable, the coaxial number of degrees indication device that is provided with on the glass clamping worktable, drive glass clamping worktable motor rotating gearing, one side of glass clamping worktable is provided with the zebra screen, the opposite side that it is characterized in that glass clamping worktable is provided with a video camera, video camera focus be positioned on the line of centres of detected center of glass and zebra screen, the object plane focal length of simultaneous camera is aimed at the zebra screen; The signal of video camera outputs to computing machine, and the control signal end of transmission gear for electric motor is connected with computing machine, and the zebra screen has the red light emitting diodes surface of light source.
2. off-line float glass optical skew angle detecting device according to claim 1 is characterized in that described video camera is an Array CCD Camera.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206167551U CN201917325U (en) | 2010-11-19 | 2010-11-19 | Off-line detection device for optical deflection angle of float glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206167551U CN201917325U (en) | 2010-11-19 | 2010-11-19 | Off-line detection device for optical deflection angle of float glass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201917325U true CN201917325U (en) | 2011-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206167551U Expired - Lifetime CN201917325U (en) | 2010-11-19 | 2010-11-19 | Off-line detection device for optical deflection angle of float glass |
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| Country | Link |
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| CN (1) | CN201917325U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103185662A (en) * | 2011-12-30 | 2013-07-03 | 信义汽车玻璃(深圳)有限公司 | Support frame, system and method for detection of automobile toughened glass water ripples |
| CN104111040A (en) * | 2014-06-11 | 2014-10-22 | 华中科技大学 | Float glass striae online detection method |
| CN105486699A (en) * | 2015-11-19 | 2016-04-13 | 中国航空工业集团公司北京航空材料研究院 | Experimental apparatus and method for detecting crazes and defects of organic glass |
-
2010
- 2010-11-19 CN CN2010206167551U patent/CN201917325U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103185662A (en) * | 2011-12-30 | 2013-07-03 | 信义汽车玻璃(深圳)有限公司 | Support frame, system and method for detection of automobile toughened glass water ripples |
| CN104111040A (en) * | 2014-06-11 | 2014-10-22 | 华中科技大学 | Float glass striae online detection method |
| CN104111040B (en) * | 2014-06-11 | 2016-08-17 | 华中科技大学 | A kind of float glass brush line online test method |
| CN105486699A (en) * | 2015-11-19 | 2016-04-13 | 中国航空工业集团公司北京航空材料研究院 | Experimental apparatus and method for detecting crazes and defects of organic glass |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190215 Address after: 430000 Baiaxichi Lute No. 1, Xintan New Area, Wuhan Economic and Technological Development Zone, Wuhan City, Hubei Province Patentee after: Honghu Changli Glass Co., Ltd. Address before: 430065 Wuhan Changli Glass Co., Ltd. No. 21 Zhangjiawan, Hongshan District, Wuhan City, Hubei Province Patentee before: Wuhan Changli Glass Co., Ltd. |
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| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110803 |
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| CX01 | Expiry of patent term |