CN108195848A - The full-scale warpage flatness detecting device of glass and detection method - Google Patents

The full-scale warpage flatness detecting device of glass and detection method Download PDF

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Publication number
CN108195848A
CN108195848A CN201810039197.8A CN201810039197A CN108195848A CN 108195848 A CN108195848 A CN 108195848A CN 201810039197 A CN201810039197 A CN 201810039197A CN 108195848 A CN108195848 A CN 108195848A
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CN
China
Prior art keywords
module
sample
tested
full
image
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Pending
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CN201810039197.8A
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Chinese (zh)
Inventor
刘庆柏
陈志忠
高学文
雷国韬
揭平良
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Shenzhen Jing Chuang Vision Technology Co Ltd
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Shenzhen Jing Chuang Vision Technology Co Ltd
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Priority to CN201810039197.8A priority Critical patent/CN108195848A/en
Publication of CN108195848A publication Critical patent/CN108195848A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84Systems specially adapted for particular applications
    • G01N21/88Investigating the presence of flaws or contamination
    • G01N21/95Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
    • G01N21/958Inspecting transparent materials or objects, e.g. windscreens
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00Measuring arrangements characterised by the use of optical techniques
    • G01B11/16Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
    • G01B11/167Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge by projecting a pattern on the object
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00Measuring arrangements characterised by the use of optical techniques
    • G01B11/30Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces

Abstract

The invention belongs to field of optical detection,More particularly to the full-scale warpage flatness detecting device of glass and detection method,Including rack,Convey module,Illumination module,Imaging modules,Camera module,Image procossing module,Sample to be tested need to be only placed on to conveying module front end during detection,Full-scale warpage flatness detection can be completed under the drive of conveying module,Detection process is without manually participating in,Save a large amount of manpower and materials,Working efficiency is high,It can monitor and detect the qualitative items of the warpage out-of-flatness in process of glass flow in real time,And achieve the purpose that piece piece is examined,It can carry out complete detection,It will not lead to missing inspection,Accuracy of detection is high,Reduce the output of defective products,Improve the quality and performance of sample to be tested,Substantially improve the sampling observation of existing characterization processes and the manpower used in the process,Detection process energy Real-time Feedback testing result data,Producers can do effectively disposition in real time with quality testing personnel according to feedback result,Improve working efficiency.

Description

The full-scale warpage flatness detecting device of glass and detection method
Technical field
The invention belongs to field of optical detection more particularly to the full-scale warpage flatness detecting device of glass and detection sides Method.
Background technology
The Chinese government actively promoted panel industry construction since 2005, ensured panel enterprise from policy, funds Industrial pattern.According to statistics, global liquid crystal television panel shipment amount in 2016 reaches 2.58 hundred million, and it is flat that shipment area reaches 1.3 hundred million Square rice, from the point of view of accounting for rate from world community panel city, China's Mainland panel vendor shipment amount has accounted for the whole world 30%, is only second to South Korea row The name whole world second, 25.5% city for surmounting TaiWan, China for the first time accounts for rate.Ultra high-definition along with consumption upgrading and smart television is big Sizing, global large size panel is in great demand in recent years.China's Mainland city of panel vendor accounts for rate and is promoted steadily.
Glass substrate is a basic element of character for forming liquid crystal display device, is FPD (Flat Panel Display, FPD) industry one of key foundation material, the requirement of base plate glass technology is high, has high in technological content, technical barrier More, the features such as monopoly is strong.Known glass generation size is as shown in Figure 1, glass production factory consecutive production large-area glass, so After cut into large area foliated glass, experience trimming, grinding, inspection ... etc. pack shipment after station.Link is checked in quality In, warpage flatness detection is vital one in numerous inspection items.For warpage flatness detection, existing detection side Formula is to be stood glass on frame with big blank frame, and then 5 meters or so of opposite also stands one full of constant spacing oblique line The plank of striped stands and sees that the constant spacing oblique line striped of glass-mirror reflection has distortionless change below the plank of oblique line striped Whether warpage is uneven to judge glass for shape.For this detection mode due to time-consuming and laborious, working efficiency is low, thus can only inspect by random samples, nothing Method accomplishes complete detection, this just often leads to the bad phenomenon of missing inspection, and underproof product is caused to come into the market, affects glass The performance of glass product.
Invention content
Present invention aim to address above-mentioned the deficiencies in the prior art, provide it is a kind of it is time saving and energy saving, detection efficiency is high, detection The full-scale warpage flatness detecting device of glass and detection method of precision height and energy Real-time Feedback testing result data.
Technical solution is used by the present invention solves above-mentioned the deficiencies in the prior art:
A kind of full-scale warpage flatness detecting device of glass, which is characterized in that including:
Rack, for carrying the module being disposed thereon;
Module is conveyed, is arranged on above the rack, for being conveyed to sample to be tested;
Illumination module is arranged below the rack, for providing warpage flatness detection illumination, the illumination module transmitting Light be incident on it is described conveying module sample to be tested in;
Imaging modules are arranged on above the rack, and the light of the illumination module transmitting in the conveying module through treating test sample It is imaged after product into the imaging modules;
Camera module connects the imaging modules, and the image obtained to the imaging modules is acquired;
Image procossing module connects the camera module, receives the image data of the camera module acquisition, and to described image Data carry out calculation processing to obtain the warpage flatness information of sample to be tested.
Preferably, heretofore described conveying module acquires described to be measured at least provided with an interstitial area, the camera module Sample is in the image of the interstitial area.
Preferably, heretofore described illumination module is that linear light sorurce, the linear light sorurce are equipped with below the rack Upper end is equipped with standard grid.
Preferably, heretofore described camera module is multiple line-scan digital cameras to be equipped with above the rack, and multiple institutes Line-scan digital camera is stated to be arranged at intervals along with the perpendicular direction of sample to be tested direction of advance.Camera module uses multiple line-scan digital cameras, The continuously linear image of sample to be tested can be acquired, improves accuracy of detection.
Preferably, heretofore described line-scan digital camera acquires the contiguous segmentation image of sample to be tested respectively, then passes through conjunction The whole image of the sample to be tested is obtained into the contiguous segmentation image.
Preferably, speculum is equipped with above heretofore described rack, the imaging modules front end is equipped with uniform tablet, institute The light for stating the transmitting of illumination module is incident on the speculum after sample to be tested, is projected to after speculum reflection described Uniform tablet.
Preferably, the front end of heretofore described conveying module is equipped with automatic discharge mechanism, and rear end is equipped with automatic material receptacle Structure.
Preferably, the present invention also provides a kind of full-scale warpage measurement method of planeness of glass, include the following steps:
Step A, sample to be tested is placed in conveying module front end, and sample to be tested is under the drive of conveying module to conveying module rear end It is mobile;
Step B, when sample to be tested is moved to the interstitial area of conveying module, the linear light warp of the linear light sorurce transmitting in illumination module Sample to be tested is incident on after standard grid;
Step C, the linear light after sample to be tested transmits, which is entered in imaging modules, is imaged;
Step D, the contiguous segmentation image of the line-scan digital camera acquisition sample to be tested in camera module, and by the contiguous segmentation figure of acquisition As being sent to image procossing module;
Step E, image procossing module obtains the whole image of the sample to be tested by synthesizing the contiguous segmentation image, and Calculation processing is carried out to the whole image to obtain the warpage flatness information of sample to be tested.
Preferably, in heretofore described step C, the linear light after sample to be tested transmits is incident on anti-above rack Mirror is penetrated, uniform tablet is projected to after speculum reflection.
The invention has the advantages that due to apparatus of the present invention include rack, conveying module, illumination module, imaging modules, Camera module, image procossing module, thus using apparatus of the present invention to glass carry out warpage flatness detection when, it is only necessary to will treat Sample is placed on conveying module front end, and sample to be tested, to the movement of conveying module rear end, works as movement under the drive of conveying module During to the interstitial area for conveying module, the linear light of the linear light sorurce transmitting in illumination module is incident on after standard grid treats test sample Product, the linear light after sample to be tested transmits enter imaging modules and are imaged, and test sample is treated in the line-scan digital camera acquisition in camera module The contiguous segmentation image of product, and collected contiguous segmentation image is sent to image procossing module, image procossing module passes through It synthesizes the contiguous segmentation image and obtains the whole image of sample to be tested, and calculation processing is carried out to the whole image to obtain The warpage flatness information of sample to be tested is taken, detection process need not be participated in manually, save a large amount of manpower and materials, and working efficiency is high, It can monitor and detect the qualitative items of the warpage out-of-flatness in process of glass flow in real time, and reach the mesh of piece piece inspection , complete detection can be carried out, missing inspection will not be led to, accuracy of detection is high, reduces the output of defective products, improves sample to be tested Quality and performance, substantially improve the sampling observation of existing characterization processes and the manpower used in the process, and detection process can be anti-in real time Testing result data are presented, producers can do effectively disposition in real time with quality testing personnel according to feedback result, improve work Efficiency.
Description of the drawings
Fig. 1 is glass generation dimensional drawing in the prior art.
Fig. 2 is a kind of example structure schematic diagram of the full-scale warpage flatness detecting device of glass of the present invention.
Fig. 3 be the full-scale warpage flatness detecting device of glass of the present invention another example structure schematic diagram and A kind of preferred embodiment schematic diagram.
Fig. 4 is the flow diagram of the full-scale warpage measurement method of planeness of glass of the present invention.
Specific embodiment
It is described below to disclose the present invention so that those skilled in the art can realize the present invention.It is excellent in being described below Embodiment is selected to be only used as illustrating, it may occur to persons skilled in the art that other obvious modifications.It defines in the following description The present invention basic principle can be applied to other embodiments, deformation scheme, improvement project, equivalent program and do not carry on the back Other technologies scheme from the spirit and scope of the present invention.
In the description of the present invention, it should be noted that term " on ", " under ", "front", "rear", etc. the orientation of instructions or Position relationship is based on orientation shown in the drawings or position relationship, is for only for ease of the description present invention and simplifies description, without It is instruction or implies that signified device or element there must be specific orientation, with specific azimuth configuration and operation, therefore not It is understood that as limitation of the present invention.
Embodiment one
Fig. 2 shows a kind of example structure schematic diagrams and one of the full-scale warpage flatness detecting device of glass of the present invention Kind preferred embodiment schematic diagram.As shown in Fig. 2, the full-scale warpage flatness detecting device of glass described in the present embodiment, including: Rack 10, conveying module 20, illumination module 30, imaging modules 40, camera module 50, image procossing module(It is not shown in figure), Wherein, the module that the rack 10 is disposed thereon for carrying;The conveying module 20 is arranged on 10 top of rack, uses It is conveyed in sample to be tested 60;The illumination module 30 is arranged on 10 lower section of rack, for being examined to warpage flatness It surveys and illumination is provided, the light of the illumination module transmitting is incident in the sample to be tested of the conveying module;The imaging modules 40 Be arranged on above the rack, the light of the illumination module transmitting enter after the sample to be tested in the conveying module it is described into As module is imaged;The camera module 50 connects the imaging modules, and the image obtained to the imaging modules is adopted Collection;Described image processing module connects the camera module, receives the image data of the camera module acquisition, and to the figure As data carry out calculation processing to obtain the warpage flatness information of sample to be tested.
Conveying module described in the present embodiment can be any structure with conveying function, e.g., conveyer belt or biography Defeated roller, is not defined herein.Sample to be tested is moved to right end by conveying module by conveying module left end, realizes automatic transmission Detection meets full-scale detection demand, improves detection efficiency.Preferably, module is conveyed described in the present embodiment at least provided with one Interstitial area 21, the camera module 50 acquire image of the sample to be tested 60 in the interstitial area 21.
Preferably, illumination module described in the present embodiment 30 is that linear light sorurce is equipped with below the rack, to detect Journey provides light environment, improves accuracy of detection, and the linear light sorurce upper end is equipped with standard grid.The linear light of linear light sorurce transmitting Beam is incident on the sample to be tested in conveying module after standard grid, and reference data is provided for testing result.
Preferably, camera module 50 described in the present embodiment is that multiple line-scan digital cameras 51 are equipped with above the rack 10, And multiple line-scan digital cameras are arranged at intervals along with the perpendicular direction of sample to be tested direction of advance, each 51 front end of line-scan digital camera It is respectively connected with imaging modules.Camera module uses multiple line-scan digital cameras, can acquire the continuously linear image of sample to be tested, improves Accuracy of detection.It is made one to be mentioned that, the minimum imaging lens that distort may be used in imaging modules 40 described in the present embodiment, improve Image quality further improves accuracy of detection.
Sample to be tested moves forward on conveying module, and multiple line-scan digital cameras acquire the contiguous segmentation figure of sample to be tested respectively Then the contiguous segmentation image of acquisition is sent to image procossing module by picture, image procossing module is by synthesizing described continuous point Section image and obtain the whole image of the sample to be tested, and calculation processing is carried out to the whole image to obtain sample to be tested Warpage flatness information.Image procossing module described in the present embodiment can be the general-purpose computations for having data processing software Machine or dedicated data processor, are not defined herein.The present embodiment described device can be anti-in real time in detection process Testing result data are presented, producers can do effectively disposition in real time with quality testing personnel according to feedback result, improve work Efficiency meets modern society's large-scale production requirement.
Embodiment two
It is noted that the present embodiment is optimized on the basis of embodiment one, the detection of higher specification can be met Demand, thus, each modular structure described in embodiment one is equally applicable in the present embodiment two, and details are not described herein.Further , as shown in figure 3,10 top of the present embodiment rack is additionally provided with speculum 70,40 front end of imaging modules is equipped with uniform tablet 80, uniform tablet described in the present embodiment is preferably white uniformity tablet, and during detection, the light of the illumination module transmitting is through to be measured Speculum 70 is incident on after sample 60, the uniform tablet 80 is projected to after the speculum 70 reflection, by photographing element Image on the 50 uniform tablets of acquisition, and the image collected is sent to image procossing module to perform sample to be tested warpage smooth The calculating of degree.
Preferably, the front end for module being conveyed described in the present embodiment can be further provided with automatic emptying machine Structure, rear end are equipped with automatic withdrawing mechanism.Sample to be tested can be sequentially placed on conveying module by the automatic discharge mechanism automatically In, after detection, the automatic withdrawing mechanism can sequentially collect the glass for detecting completion, high degree of automation, into one Step improves working efficiency.
Embodiment three
The present embodiment provides a kind of full-scale warpage measurement method of planeness of glass, include the following steps:
Step A, sample to be tested is placed in conveying module front end, and sample to be tested is under the drive of conveying module to conveying module rear end It is mobile;In this step, as described in embodiment two, before can utilizing automatic discharge mechanism that sample to be tested is positioned over conveying module End;
Step B, when sample to be tested is moved to the interstitial area of conveying module, the linear light warp of the linear light sorurce transmitting in illumination module Sample to be tested is incident on after standard grid;
Step C, the linear light after sample to be tested transmits, which is entered in imaging modules, is imaged;
Step D, the contiguous segmentation image of the line-scan digital camera acquisition sample to be tested in camera module, and by the contiguous segmentation figure of acquisition As being sent to image procossing module;
Step E, image procossing module obtains the whole image of the sample to be tested by synthesizing the contiguous segmentation image, and Calculation processing is carried out to the whole image to obtain the warpage flatness information of sample to be tested.
It is noted that in step E, image procossing module can both pass through calculation when performing calculating according to image Method calculates the size of interference fringe distortion and twisted shape variable goes the warpage flatness situation of qualitative definition sample to be tested, The warpage flatness numerical value of quantitative definition sample to be tested can be removed by the calibration of standard film numerical analysis.
Certainly, the present embodiment can also include automatic material receiving step, utilize the automatic withdrawing mechanism as described in embodiment two The glass that completion is detected in step E is collected.
Preferably, in step C described in the present embodiment, linear light after sample to be tested transmits can be into One steps into the speculum being mapped to above rack, after projecting to uniform tablet after speculum reflection by camera module acquisition at this time Image, meet higher inspection criterion requirement.
It should be understood by those skilled in the art that foregoing description and attached the embodiment of the present invention shown in figure are only used as illustrating And it is not intended to limit the present invention.The purpose of the present invention has been fully and effectively achieved.The function and structural principle of the present invention exists It shows and illustrates in embodiment, under without departing from the principle, embodiments of the present invention can have any deformation or modification.

Claims (9)

1. a kind of full-scale warpage flatness detecting device of glass, which is characterized in that including:
Rack, for carrying the module being disposed thereon;
Module is conveyed, is arranged on above the rack, for being conveyed to sample to be tested;
Illumination module is arranged below the rack, for providing warpage flatness detection illumination, the illumination module transmitting Light be incident on it is described conveying module sample to be tested in;
Imaging modules are arranged on above the rack, and the light of the illumination module transmitting in the conveying module through treating test sample It is imaged after product into the imaging modules;
Camera module connects the imaging modules, and the image obtained to the imaging modules is acquired;
Image procossing module connects the camera module, receives the image data of the camera module acquisition, and to described image Data carry out calculation processing to obtain the warpage flatness information of sample to be tested.
2. the full-scale warpage flatness detecting device of glass according to claim 1, which is characterized in that the conveying module At least provided with an interstitial area, the camera module acquires image of the sample to be tested in the interstitial area.
3. the full-scale warpage flatness detecting device of glass according to claim 1 or 2, which is characterized in that the illumination Module is that linear light sorurce is equipped with below the rack, and the linear light sorurce upper end is equipped with standard grid.
4. the full-scale warpage flatness detecting device of glass according to claim 1 or 2, which is characterized in that the camera shooting Module is that multiple line-scan digital cameras are equipped with above the rack, and multiple line-scan digital camera edges and sample to be tested direction of advance phase Vertical direction is arranged at intervals.
5. the full-scale warpage flatness detecting device of glass according to claim 4, which is characterized in that the line-scan digital camera The contiguous segmentation image of sample to be tested is acquired respectively, then obtains the sample to be tested by synthesizing the contiguous segmentation image Whole image.
6. the full-scale warpage flatness detecting device of glass according to claim 1 or 2, which is characterized in that the rack Top is equipped with speculum, and the imaging modules front end is equipped with uniform tablet, and the light of the illumination module transmitting is after sample to be tested The speculum is incident on, the uniform tablet is projected to after speculum reflection.
7. the full-scale warpage flatness detecting device of glass according to claim 1 or 2, which is characterized in that the conveying The front end of module is equipped with automatic discharge mechanism, and rear end is equipped with automatic withdrawing mechanism.
8. a kind of full-scale warpage measurement method of planeness of glass, which is characterized in that include the following steps:
Step A, sample to be tested is placed in conveying module front end, and sample to be tested is under the drive of conveying module to conveying module rear end It is mobile;
Step B, when sample to be tested is moved to the interstitial area of conveying module, the linear light warp of the linear light sorurce transmitting in illumination module Sample to be tested is incident on after standard grid;
Step C, the linear light after sample to be tested transmits, which is entered in imaging modules, is imaged;
Step D, the contiguous segmentation image of the line-scan digital camera acquisition sample to be tested in camera module, and by the contiguous segmentation figure of acquisition As being sent to image procossing module;
Step E, image procossing module obtains the whole image of the sample to be tested by synthesizing the contiguous segmentation image, and Calculation processing is carried out to the whole image to obtain the warpage flatness information of sample to be tested.
9. the full-scale warpage measurement method of planeness of glass according to claim 8, which is characterized in that in the step C, Linear light after sample to be tested transmits is incident on the speculum above rack, is projected to after speculum reflection uniformly flat Plate.
CN201810039197.8A 2018-01-16 2018-01-16 The full-scale warpage flatness detecting device of glass and detection method Pending CN108195848A (en)

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Cited By (8)

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CN109580659A (en) * 2018-10-23 2019-04-05 彩虹(合肥)液晶玻璃有限公司 A kind of glass inspection systems and glass producing system
CN109631784A (en) * 2018-11-27 2019-04-16 彩虹(合肥)液晶玻璃有限公司 Glass substrate detection system and method
CN110346118A (en) * 2019-07-17 2019-10-18 陈忠海 A kind of eyeglass bending detection method
CN111792377A (en) * 2020-06-17 2020-10-20 上海名起机械制造有限公司 Conveying and positioning mechanism of PCB (printed circuit board) collecting machine and PCB collecting method
CN112050756A (en) * 2020-09-04 2020-12-08 南通大学 Rock ore slice and resin target surface flatness recognition processing method
CN113340224A (en) * 2021-06-08 2021-09-03 彩虹(合肥)液晶玻璃有限公司 Panel warpage deformation on-line measuring device based on vertical scanning
CN113340240A (en) * 2021-06-07 2021-09-03 高速铁路建造技术国家工程实验室 Detection system and detection method for flatness of concrete precast slab
CN113405483A (en) * 2021-06-16 2021-09-17 彩虹(合肥)液晶玻璃有限公司 Glass substrate warpage defect on-line measuring device

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CN109580659A (en) * 2018-10-23 2019-04-05 彩虹(合肥)液晶玻璃有限公司 A kind of glass inspection systems and glass producing system
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CN110346118A (en) * 2019-07-17 2019-10-18 陈忠海 A kind of eyeglass bending detection method
CN111792377A (en) * 2020-06-17 2020-10-20 上海名起机械制造有限公司 Conveying and positioning mechanism of PCB (printed circuit board) collecting machine and PCB collecting method
CN112050756A (en) * 2020-09-04 2020-12-08 南通大学 Rock ore slice and resin target surface flatness recognition processing method
CN112050756B (en) * 2020-09-04 2022-05-06 南通大学 Rock ore slice and resin target surface flatness recognition processing method
CN113340240A (en) * 2021-06-07 2021-09-03 高速铁路建造技术国家工程实验室 Detection system and detection method for flatness of concrete precast slab
CN113340224A (en) * 2021-06-08 2021-09-03 彩虹(合肥)液晶玻璃有限公司 Panel warpage deformation on-line measuring device based on vertical scanning
CN113340224B (en) * 2021-06-08 2023-01-03 彩虹(合肥)液晶玻璃有限公司 Panel warpage deformation on-line measuring device based on vertical scanning
CN113405483A (en) * 2021-06-16 2021-09-17 彩虹(合肥)液晶玻璃有限公司 Glass substrate warpage defect on-line measuring device
CN113405483B (en) * 2021-06-16 2023-02-14 彩虹(合肥)液晶玻璃有限公司 Glass substrate warpage defect on-line measuring device

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