CN103718024B - Sheet glass testing fixture, sheet glass inspection method, sheet glass manufacturing apparatus and sheet glass manufacture method - Google Patents
Sheet glass testing fixture, sheet glass inspection method, sheet glass manufacturing apparatus and sheet glass manufacture method Download PDFInfo
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- CN103718024B CN103718024B CN201280034975.5A CN201280034975A CN103718024B CN 103718024 B CN103718024 B CN 103718024B CN 201280034975 A CN201280034975 A CN 201280034975A CN 103718024 B CN103718024 B CN 103718024B
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
- G01N21/892—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles characterised by the flaw, defect or object feature examined
- G01N21/896—Optical defects in or on transparent materials, e.g. distortion, surface flaws in conveyed flat sheet or rod
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Abstract
The invention provides a kind of sheet glass testing fixture, it is in the inspection of the glass defect recurred, and can guarantee improve inspection speed under necessary inspection precision, and it is complicated and can restraining device cost that device can not be made to form.Sheet glass testing fixture of the present invention, it checks multiple sheet glass, this sheet glass testing fixture possesses: test section, and it detects the defect candidate scope of the defect candidate scope of the 1st sheet glass and the 2nd sheet glass identical with the 1st sheet glass; Detection unit, it compares the position of the position of the defect candidate scope of the 1st sheet glass and the defect candidate scope of the 2nd sheet glass, according to this comparative result, determines whether the defect produced continuously at the 1st sheet glass and the 2nd sheet glass.
Description
Technical field
The present invention relates to the technology that the sheet glass testing fixture of the inspection for sheet glass, sheet glass inspection method, sheet glass manufacturing apparatus and sheet glass manufacture method ， Te Do relate to more correctly detect the defect recurred.
Background technology
In recent years, thin flat panel display is popularized significantly, and wherein the production number of units of liquid crystal display is maximum.Be used in the liquid crystal base plate glass of liquid crystal display, majority produces with overflow-type drop-down (overflowdowndraw) method.
Because overflow-type glass tube down-drawing does not need to grind the level and smooth surface that just can be shaped to nano-scale, therefore, it is possible to the sheet glass that the quality of production is high.But, such as because the dissolving of frit is insufficient, being mixed into of foreign matter, the factor such as oldization of device and the variation of condition of molding, sometimes can there is defect at sheet glass.
Glass defect such as has: result from being mixed into or defect (scar (knot), striped (cord)) that the dissolving of frit is not enough of foreign matter; Bubble (seed or blister etc.); Betide the defect (protuberance, striped, open pore, concavo-convex and scar etc.) of surface of plate glass.Te Do is striped, owing to recurring, adds the of a great variety of occurrence cause and often needs to expend time in disposal, to be therefore necessary after formed from plate glass as early as possible and as far as possible correctly to detect, and testing result is fed back to molding procedure.
In patent documentation 1 ~ 4, disclose the light having and receive and penetrate sheet glass, thus detect the device of the glass defects such as striped.
(patent documentation)
Patent documentation 1: Japanese Patent Laid-Open 2010-48745 publication
Patent documentation 2: Japanese Patent Laid-Open 2010-19834 publication
Patent documentation 3: Japanese Patent Laid-Open 2008-170429 publication
Patent documentation 4: Japanese Patent Laid-Open 2004-251878 publication
Summary of the invention
The problem that invention will solve
Device described in patent documentation 1 ~ 4, in inspection precision, checks in speed and installation cost etc., the leeway of be still improved, improveing.
Such as, record in patent documentation 2 " in order to really detect the trickle defect of connected surface of plate glass; and and establish 3 testing fixtures; checking 1 sheet glass by using 3 testing fixtures; even if every platform testing fixture is easy formation simultaneously, still can guarantee high detection rate and high-speed production " (the 0083rd section of patent documentation 2).
But, the sheet glass flaw detection apparatus described in patent documentation 2, due to and establish same testing fixture to check 1 sheet glass simultaneously, therefore device forms complicated and installation cost is uprised.
If merely increase the number of units of testing fixture, usually can improve and check precision and inspection speed.If but the number of units not increasing testing fixture just can improve inspection precision or inspection speed, will do a great deal of good.
The object of the present invention is to provide sheet glass testing fixture, sheet glass inspection method, sheet glass manufacturing apparatus and sheet glass manufacture method, in the inspection of the defect (as striped) recurred at multiple sheet glass when formed from plate glass, do not make device form complicated just can restraining device cost, and the number of units not increasing testing fixture just can improve inspection precision or inspection speed.
For the means of dealing with problems
For reaching above-mentioned purpose, sheet glass testing fixture of the present invention is the device checking multiple sheet glass, possess: test section, it detects the defect candidate scope of the defect candidate scope of the 1st sheet glass and the 2nd sheet glass different from described 1st sheet glass, and detection unit, it is when the position of the defect candidate scope of described 1st sheet glass is overlapping with the position existence range of the defect candidate scope of described 2nd sheet glass, be judged to be to there is the defect produced continuously at described 1st sheet glass and described 2nd sheet glass, described test section contains shoot part and operational part, described shoot part obtains the image on described 1st sheet glass and on described 2nd sheet glass, defect candidate section is extracted out by the image that described operational part obtains according to described shoot part, and described defect candidate section is set as described defect candidate scope to glass width Directional Extension, described defect candidate scope is made to be greater than described defect candidate section.
Herein, preferably, in sheet glass testing fixture, described 1st sheet glass and described 2nd sheet glass are the sheet glass formed towards prescribed direction arm-tie, described test section is for described prescribed direction, check a part for described 1st sheet glass and a part for described 2nd sheet glass, described test section, for the direction orthogonal with described prescribed direction, is check the gamut of described 1st sheet glass and the gamut of described 2nd sheet glass.
Herein, preferably, have: conveying unit in sheet glass testing fixture, it transports described 1st sheet glass and described 2nd sheet glass on the direction orthogonal with described prescribed direction; Shoot part, it obtains the image of fixed position in the conveyance approach of described 1st sheet glass and described 2nd sheet glass.
Herein, preferably, in sheet glass testing fixture, described conveying unit contains pulse efferent, and described pulse efferent exports the pulse corresponding with the amount of movement of described sheet glass, and described shoot part obtains image according to this pulse.
For reaching above-mentioned purpose, sheet glass inspection method of the present invention is the sheet glass inspection method checking multiple sheet glass, this sheet glass inspection method contains: detecting step, in this detecting step, the defect candidate scope of the 1st sheet glass and the defect candidate scope of 2nd sheet glass different from described 1st sheet glass are detected; And determination step, in this determination step, when the position existence range overlap of the position of the defect candidate scope of described 1st sheet glass and the defect candidate scope of described 2nd sheet glass, be judged to be to there is the defect produced continuously at described 1st sheet glass and described 2nd sheet glass, described detecting step contains: the step obtaining the image on described 1st sheet glass and on described 2nd sheet glass; With according to the described image obtained, defect candidate section is extracted out, and described defect candidate section is set as described defect candidate scope to glass width Directional Extension, make described defect candidate scope be greater than the step of described defect candidate section.
For reaching above-mentioned purpose, sheet glass manufacturing apparatus of the present invention is the sheet glass manufacturing apparatus manufacturing multiple sheet glass, possesses: forming part, and it makes the 1st sheet glass and 2nd formed from plate glass different from described 1st sheet glass, test section, it detects the defect candidate scope of the defect candidate scope of described 1st sheet glass and described 2nd sheet glass, detection unit, when the position existence range overlap of the defect candidate scope of its position in the defect candidate scope of described 1st sheet glass and described 2nd sheet glass, be judged to be to there is the defect produced continuously at described 1st sheet glass and described 2nd sheet glass, described test section contains shoot part and operational part, described shoot part obtains the image on described 1st sheet glass and on described 2nd sheet glass, defect candidate section is extracted out by the image that described operational part obtains according to described shoot part, and described defect candidate section is set as described defect candidate scope to glass width Directional Extension, described defect candidate scope is made to be greater than described defect candidate section.
For reaching above-mentioned purpose, sheet glass manufacture method of the present invention is the sheet glass inspection method manufacturing multiple sheet glass, the method contains: forming step, in this forming step, makes the 1st sheet glass and 2nd formed from plate glass different from described 1st sheet glass; Detecting step, in this detecting step, detects the defect candidate scope of described 1st sheet glass and the defect candidate scope of described 2nd sheet glass; In this determination step, when the position existence range overlap of the position of the defect candidate scope of described 1st sheet glass and the defect candidate scope of described 2nd sheet glass, be judged to be to there is the defect produced continuously at described 1st sheet glass and described 2nd sheet glass, described detecting step contains: the step obtaining the image on described 1st sheet glass and on described 2nd sheet glass; With according to the described image obtained, defect candidate section is extracted out, and described defect candidate section is set as described defect candidate scope to glass width Directional Extension, make described defect candidate scope be greater than the step of described defect candidate section.
Invention effect
By the formation of above-mentioned sheet glass testing fixture, sheet glass inspection method, sheet glass manufacturing apparatus and sheet glass manufacture method, at inspection 2 sheet glass, and when the position of the defect candidate of 2 sheet glass is consistent with each other or close, can be judged to be it is continuously in the defect of 2 sheet glass.Therefore, when formed from plate glass, in the inspection of the defect (as striped) that multiple sheet glass produces continuously etc., compared with the situation one by one sheet glass checked respectively, inspection precision when determining whether defect can be improved.
Therefore, not making device form complexity just can restraining device cost.
In addition, if increase the number of units of testing fixture, then can improve compared to prior art and check precision and inspection speed.
Accompanying drawing explanation
Fig. 1 is the schematic diagram representing the conveyance of sheet glass of check object and the summary of the acquisition of image;
Fig. 2 is the figure of the summary of the sheet glass testing fixture representing embodiment 1;
Fig. 3 is the figure of the decision method for illustration of the defect candidate section at operational part;
Fig. 4 is the figure of the relation represented between defect candidate section and defect candidate scope;
Fig. 5 is the process flow diagram of the summary representing check processing; And
Fig. 6 is the figure of the summary of the sheet glass manufacturing apparatus representing variation 1.
Embodiment
[embodiment 1]
< summary >
Embodiment 1 relates to the sheet glass testing fixture for checking the glass defect recurred on the forming direction (being recited as below in " arm-tie direction ") of sheet glass.The sheet glass testing fixture of embodiment 1 obtains the image of 2 sheet glass, when the position of each defect candidate of the image being present in 2 sheet glass is consistent with each other or close, the defect candidate of 2 sheet glass is judged to be glass defect.
< forms >
Fig. 1 is the schematic diagram representing the conveyance of sheet glass of check object and the summary of the acquisition of image.
As shown in Figure 1, at shaped device 10 with the continuously shaped continuous strand glass sheet 11 of overflow-type glass tube down-drawing, the process with the work time is drawn out towards vertical A (lower side in Fig. 1 to).After continuous strand glass sheet 11 is shaped to suitable plate, continuous strand glass sheet 11 is cut to necessary size and forms sheet glass 13 by stapling machine 12.Now, the strip flaw 14 recurred on continuous strand glass sheet 11 and on sheet glass 13, if carefully watch, slight curvature or fracture, sometimes have multiple defect in contiguous region.
Now carrying device 15 maintains a part for the top of sheet glass 13, is transported by sheet glass 13 with the state of suspention towards next manufacturing process.Specifically, carrying device 15 is towards the first type surface being parallel to sheet glass 13 and the direction C orthogonal with arm-tie direction (left direction in Fig. 1) transports sheet glass 13.In the present embodiment, carrying device 15 transport that the speed of sheet glass 13 is maximum can to about 2000mm/sec.
Further, the conveyance approach going to next manufacturing process is provided with shooting point 18, the rear side of sheet glass 13 is provided with light source 16, the face side of sheet glass 13 is provided with linear camera 17.
When sheet glass 13 transports to shooting point 18, shooting point 18 part of sheet glass 13 is penetrated in the illumination that light source 16 sends, and linear camera 17 obtains the image of shooting point 18 part of sheet glass 13.Herein, linear camera 17 moment only obtains the image of 1 line.
Therefore, in the middle of the conveyance of sheet glass 13, by being carried out the acquisition of image continuously with shorter interval by linear camera 17, the image of the shooting visual field 19 (oblique line portion in Fig. 1) Inner on sheet glass 13 seamlessly can be obtained.
In the present embodiment, the pixel value of 1 line that linear camera 17 obtains is 2048 pixels, and only the data of 100 pixels of setting range Inner in 2048 pixels is used for measuring.In addition, the pixel value for measuring can be set arbitrarily by user.Shooting area on the sheet glass 13 herein captured instantaneously for 100 pixels measured, arm-tie direction about has the length of about 10mm.Linear camera 17 receives the pulse of the amount of movement representing sheet glass 13 from the pulse efferent (not shown) that carrying device 15 possesses, and obtains the image of 1 line when sheet glass 13 transports 0.1mm.
Fig. 2 is the figure of the summary of the sheet glass testing fixture 100 representing embodiment 1.
Sheet glass testing fixture 100 detects the strip flaw that the arm-tie direction of the main sheet glass shaping with overflow-type glass tube down-drawing recurs.As shown in Figure 2, sheet glass testing fixture 100 possesses test section 110 and detection unit 120.
Test section 110, according to shaping sequential search sheet glass, calculates defect candidate scope.Test section 110 is containing conveying unit 111, shoot part 112 and operational part 113.
Conveying unit 111 is equivalent to the carrying device 15 in Fig. 1.Conveying unit 111 utilizes servomotor etc. can carry out the power source of position control, towards being parallel to the first type surface of sheet glass 13 and the direction orthogonal with arm-tie direction (the direction C in Fig. 1), according to shaping order conveyance sheet glass (sheet glass 13 in Fig. 1).Further, conveying unit 111 is containing pulse efferent 114, and this pulse efferent 114 exports the multiple pulses corresponding with the amount of movement of sheet glass 13.Conveying unit 111 while transport sheet glass, output mobile pulse signal when power source moves ormal weight.Here in the present embodiment, moving pulse signal is that the coding of A phase and the B phase exported when sheet glass moves 0.1mm exports, and is export from the driver of servomotor.
Shoot part 112 is equivalent to light source 16 in Fig. 1 and linear camera 17.Shoot part 112 Fen Do obtains the image in the multiple regions on 2 sheet glass.The details of shoot part 112 is below described.
Shoot part 112 receives moving pulse signal from pulse efferent 114, whenever have received the moving pulse signal of regulation, obtains the image of shooting point.In present embodiment, because when sheet glass moves 0.1mm, shoot part 112 just obtains image, therefore shoot part 112 is whenever receiving moving pulse signal from pulse efferent 114, obtains the image of 1 line.
In addition, because conveying unit 111 maintains the position of sheet glass and not necessarily, therefore shoot part 112 started photography before sheet glass arrives shooting point, and after sheet glass is by shooting point, terminate photography.
Defect candidate section is extracted out by the image that operational part 113 obtains according to shoot part 112, and according to the defect candidate section extracted out, is: defect candidate scope is greater than defect candidate region by defect candidate range set.Below, the details of operational part 113 is described.
Operational part 113 respectively for each image obtained by shoot part 112 when sheet glass moves, only data of average setting range, and calculate the one-dimensional data corresponding to glass width direction.At this, operational part 113 is only averaged to 100 pixels of the view data obtained at shoot part 112 when sheet glass moves 0.1mm and calculates one-dimensional data.
At this, due in the view data that shoot part 112 obtains, include the extraneous view data of glass of photographing when sheet glass is not positioned at shooting point, therefore operational part 113 detects glass end according to the one-dimensional data corresponding to glass width direction, and is equivalent to the extraneous part of glass from the removing of this one-dimensional data and only extracts the part being equivalent to glass scope out.Specifically, operational part 113 is from the two ends of the one-dimensional data corresponding to glass width direction, after the data of the width preset are got rid of, from the two ends of this one-dimensional data, Fen Do sequentially finds the data of below setting value to the inside, and with regard to two ends separately with regard to, will find that the data place of below setting value is as glass end at first.Then operational part 113 is in this one-dimensional data, and a glass end is judged to be glass scope between another glass end.Herein, the why data removing of glass width that will preset of operational part 113 is because will get rid of the part that brightness that surround lighting (ambientlight) causes extremely declines.In addition, operational part 113 sequentially finds the data of below setting value from two ends Fen Do toward inner side, is that the strip flaw in order to make sometimes to have quite high brightness misjudgedly can not be decided to be glass end.
Subsequently, in order to make the characteristic remarkable of the glass defect that will detect, operational part 113 is implemented gamma correction as required or is strengthened process, use the data converting program that Fourier transform or wavelet transformation (wavelettransformation) etc. are existing, only conversion is equivalent to the one-dimensional data of the part of glass scope.In sheet glass testing fixture 100, prepare 10 kinds of data converting programs, thus the parameter of the data converting program used and each data converting program or setting value can be set by user.
Subsequently, operational part 113 calculates defect candidate scope.
Fig. 3 is the figure of the decision method of defect candidate section for illustration of operational part 113.
Record the line of the grade representing one-dimensional data in Fig. 3, this one-dimensional data usage data conversion program converts.+ bad the threshold value in side 21 ,+side warning threshold 22 ,-side warning threshold 23, these 4 threshold values of the bad threshold value 24 in-side are indicated in Fig. 3.Herein, 4 threshold values can be set by user.
The one-dimensional data that usage data conversion program converts by operational part 113 in the position of+side warning threshold more than 22 and-side warning threshold less than 23 as defect position candidate, and using the set of adjacent defect position candidate as defect candidate section 25.
Then, operational part 113, according to the regulation rule of following explanation, by defect candidate section 25 to glass width Directional Extension, calculates defect candidate scope, and this defect candidate scope is used for detection unit 120 and judges sheet glass whether as the judgement of defect.
In addition, as the defect that will detect bending few, also can not by defect candidate section 25 to glass width Directional Extension, but directly as defect candidate scope.
Fig. 4 is the figure of the relation represented between defect candidate section and defect candidate scope.
Record the line 32 of the grade representing one-dimensional data in Fig. 4, this one-dimensional data usage data conversion program converts.One-dimensional data shown in Fig. 4 is divided into the width of defect detecting unit 31, and this defect detecting unit 31 has Rack.At this, what is called is divided into the width of defect detecting unit 31, refer to the one-dimensional data being only equivalent to the part of glass scope from center of glass to two ends by specified quantity division, thus be divided into unit area, this unit area has the width of defect detecting unit 31.In addition, the straight line 36 of the downside of line 32 represents the corresponding relation between one-dimensional data and unit area.
In the present embodiment, setting is equivalent to the defect detecting unit 31 of the 5mm width of sheet glass, and the one-dimensional data being only equivalent to the part of glass scope is divided into the unit area be made up of 50 data respectively from an end.
For each unit area, the unit area containing at least one defect candidate is all regarded as candidate's unit area by operational part 113.Example shown in Fig. 4, unit area 33 and unit area 34 are regarded as defect candidate unit area by operational part 113.Further, continuous print unit area 33 is regarded as defect candidate scope 35 by operational part 113 together with unit area 34.
In addition, when there being multiple defect candidate section, if the defect candidate scope calculated according to each defect candidate section is adjacent, then adjacent two defect candidate scopes are considered as a defect candidate scope together.
Subsequently, operational part 113 assert the degree of the defect of defect candidate for defect candidate scope 35.Specifically, as shown in Figure 4, in defect candidate scope 35, as long as the part of the bad threshold value less than 24 of the bad threshold value in+side more than 21 or-side has one, operational part 113 just regards as bad candidate.In addition, when in defect candidate scope 35, when the part one of the bad threshold value less than 24 of the bad threshold value in+side more than 21 or-side does not also exist, operational part 113 regards as warning candidate.
In addition, in the present embodiment, although test section 110 is according to shaping sequential search sheet glass, as long as manage shaping order, then can by the multiple sheet glass of arbitrary sequential search.
In addition, in the present embodiment, test section 110 is for the arm-tie direction (being equivalent to the direction B in Fig. 1) of sheet glass, check the part range specified in sheet glass, and for the direction (be equivalent to direction C in Fig. 1) orthogonal with arm-tie direction, check the gamut of sheet glass.At this, compared with the part range of regulation being set to the situation of the side close with first shaping side (downside in Fig. 1), it is further preferred that the part range of regulation to be set to the side close with aftershaping side (upside in Fig. 1).When this is the starting stage in order to just occur in the defect recurred, improve the possibility finding the sheet glass producing defect as early as possible.
Continue the details that detection unit 120 is described with reference to Fig. 2.The position of detection unit 120 to the position of the defect candidate scope of the 1st sheet glass and the defect candidate scope of the 2nd sheet glass compares, and according to comparative result, determines whether continuously in the defect that two sheet glass occur.
Detection unit 120 is containing storage part 121, comparing section 122 and Flaw evaluation portion 123.
When operational part 113 detects defect candidate scope, storage part 121 stores the position of the defect candidate scope that this calculates, and uses for lower a slice sheet glass inspection.
Defect candidate scope is calculated during this inspection sheet glass of test section 110, and when checking previously just shaping check object, storage part 121 stores the position of defect candidate scope, under such a condition, comparing section 122 compares the position of the defect candidate scope that this detects and the position of defect candidate scope that is stored.Further, comparing section 122 is confirmed whether the scope of overlap, if there is overlapping scope, is then judged to be that continuous print defect occurs both the sheet glass of sheet glass and the previously just inspection checked at this.
Flaw evaluation portion 123 is assert the defect level being judged as defective sheet glass.
Defect candidate scope is assert by the degree (such as belong to bad candidate or belong to warning candidate) of operational part 113 for the defect of defect candidate.So when the defect candidate scope being regarded as overlapping range is identified as bad candidate, then the degree of the defect of corresponding sheet glass is regarded as defective products by Flaw evaluation portion 123.And when the defect candidate scope being regarded as overlapping range is identified as warning candidate, then the degree of the defect of corresponding sheet glass is regarded as warning product by Flaw evaluation portion 123.In addition, when in single sheet glass, when the identification of defective products repeats with the identification of warning product, then this sheet glass is regarded as defective products by Flaw evaluation portion 123.In addition, for any one sheet glass in the identification of the identification with warning product of not receiving defective products, Flaw evaluation portion 123 is regarded as non-defective unit.
The comparative result of comparing section 122 and the identification result in Flaw evaluation portion 123, to such as sheet glass shaping scene or sampling check operation export and utilize.
In addition, in the present embodiment, although detection unit 120 carries out the judgement of sheet glass according to shaping order, as long as manage shaping order, then can judge according to arbitrary order.
In addition, sheet glass testing fixture 100 also can possess the device of the sheet glass getting rid of the defective products assert in Flaw evaluation portion 123, is sent to follow-up production process to prevent defective products.
< control method >
Fig. 5 is the process flow diagram of the summary representing check processing.Below, use Fig. 1, Fig. 2 and Fig. 5 that the summary of check processing is described.
(1) shoot part 112 is waited for, until sheet glass conveyance is to the position (step S1) than images acquisition locations (being equivalent to the shooting point 18 of Fig. 1) predetermined distance forward again.
(2) shoot part 112 waits for the input (step 2) of the moving pulse signal exported by pulse efferent 114.
(3) shoot part 112 obtains the image (step S3) of 1 line.
(4) continue to obtain image, until sheet glass conveyance is to the position (step S4) than images acquisition locations predetermined distance backward again.
(5) acquisition of image terminates rear (step S4: no), and operational part 113 only makes the data of setting range average and calculates one-dimensional data (step S5).
(6) operational part 113 is from the one-dimensional data calculated in step S5, detects glass end, and removing is equivalent to the extraneous part of glass and extracts the one-dimensional data (step S6) of the part being only equivalent to glass scope out.
(7) operational part 113 usage data conversion program converts (step S7) one-dimensional data.
(8) operational part 113 calculates defect candidate scope (step S8) according to the rule of regulation.
(9) degree of the defect of operational part 113 pairs of defect candidate scopes is assert (step S9).
(10) whether calculate defect candidate scope when comparing section 122 checks sheet glass to this to judge (step 10).When No calculates defect candidate scope (step S10: no), in order to check that step S1 got back to by lower a slice sheet glass.
(11) when calculating defect candidate scope (step S10: yes), storage part 121 stores the position of the defect candidate scope of the sheet glass that this calculates, and uses (step S11) for lower a slice sheet glass inspection.
(12) position that whether comparing section 112 stores defect candidate scope for the storage part 121 when checking previously just shaping check object carries out judging (step S12).If No has storage (step S12: no), then in order to check that operation 1 got back to by lower a slice sheet glass.
(13) if there is storage (step S12: yes), then comparing section 122 compares the position of the defect candidate scope that this detects and the position of defect candidate scope that is stored, is confirmed whether overlapping scope (step S13).If No has overlapping scope (step S13: no), then in order to check that step S1 got back to by lower a slice sheet glass.
(14) if there is overlapping scope (step S13: yes), then comparing section 122 judges both the sheet glass defectiveness of this sheet glass checked and previously just inspection.Further, Flaw evaluation portion 123 is assert (step S14) the defect level being judged as defective sheet glass.
[variation 1]
< summary >
The sheet glass manufacturing apparatus possessing the sheet glass testing fixture of embodiment 1 is represented in variation 1.
< forms >
Fig. 6 is the figure of the outline of the sheet glass manufacturing apparatus 200 representing variation 1.
Sheet glass manufacturing apparatus 200 possesses sheet glass testing fixture 100 and the forming part 201 of embodiment 1.
In addition, in the sheet glass manufacturing apparatus 200 of variation 1, give identical symbol for the formation that the sheet glass testing fixture 100 with embodiment 1 is identical, the description thereof will be omitted.
Shaped device 10 shown in Fig. 1 of forming part 201 and embodiment 1 is identical.
< sums up >
As mentioned above, according to the sheet glass testing fixture of embodiment 1 and the sheet glass manufacturing apparatus of variation 1, obtaining the image of 2 sequentially shaping sheet glass, and when the position being present in each defect candidate of the image of 2 sheet glass is consistent with each other or close, the defect candidate of 2 sheet glass can be judged to be glass defect.Therefore, in the inspection of the defect (as striped) recurred on multiple sheet glass when formed from plate glass etc., compared with situation about singly a sheet glass Do being checked, inspection precision when determining whether defect can be improved.
In addition, if increase the number of units of testing fixture, then can improve compared to prior art and check precision and inspection speed.
Utilizability in industry
The inspection of the defect (as striped) recurred at multiple sheet glass when the present invention is applicable to formed from plate glass etc.
By the present invention, make device form the complicated precision that just can improve when determining whether defect without Shall, the Li Price value therefore in industry is high.
Description of reference numerals
10 shaped devices
11 continuous strand glass sheets
12 stapling machines
13 sheet glass
14 strip flaws
15 carrying devices
16 light sources
17 linear cameras
18 shooting points
The 19 shooting visuals field
100 sheet glass testing fixtures
110 test sections
111 conveying units
112 shoot parts
113 operational parts
114 pulse efferents
120 detection units
121 storage parts
122 comparing sections
123 Flaw evaluation portions
200 sheet glass manufacturing apparatus
201 forming parts
Claims (7)
1. a sheet glass testing fixture, is characterized in that, possesses:
Test section, it detects the defect candidate scope of the defect candidate scope of the 1st sheet glass and the 2nd sheet glass different from described 1st sheet glass; With
Detection unit, it is when the position of the defect candidate scope of described 1st sheet glass is overlapping with the position existence range of the defect candidate scope of described 2nd sheet glass, be judged to be to there is the defect produced continuously at described 1st sheet glass and described 2nd sheet glass
Described test section contains shoot part and operational part,
Described shoot part obtains the image on described 1st sheet glass and on described 2nd sheet glass,
Defect candidate section is extracted out by the image that described operational part obtains according to described shoot part, and described defect candidate section is set as described defect candidate scope to glass width Directional Extension, make described defect candidate scope be greater than described defect candidate section.
2. sheet glass testing fixture according to claim 1, is characterized in that:
Described 1st sheet glass and described 2nd sheet glass are shaping glass sheet towards prescribed direction arm-tie,
Described shoot part, for described prescribed direction, takes a part for described 1st sheet glass and a part for described 2nd sheet glass,
Described shoot part, for the direction orthogonal with described prescribed direction, takes the gamut of described 1st sheet glass and the gamut of described 2nd sheet glass.
3. sheet glass testing fixture according to claim 2, is characterized in that:
Described sheet glass testing fixture possesses conveying unit, and this conveying unit transports described 1st sheet glass and described 2nd sheet glass on the direction that described and described prescribed direction is orthogonal,
Described shoot part obtains the image of fixed position in the conveyance approach of described 1st sheet glass and described 2nd sheet glass.
4. sheet glass testing fixture according to claim 3, is characterized in that:
Described conveying unit contains pulse efferent, and described pulse efferent exports the pulse corresponding with the amount of movement of described sheet glass,
Described shoot part obtains image according to described pulse.
5. a sheet glass inspection method, is characterized in that, the method is the method checking multiple sheet glass, and described sheet glass inspection method contains:
Detecting step, in this detecting step, detects the defect candidate scope of the 1st sheet glass and the defect candidate scope of the 2nd sheet glass different from described 1st sheet glass; With
Determination step, in this determination step, when the position existence range overlap of the position of the defect candidate scope of described 1st sheet glass and the defect candidate scope of described 2nd sheet glass, be judged to be to there is the defect produced continuously at described 1st sheet glass and described 2nd sheet glass
Described detecting step contains:
Obtain the step of the image on described 1st sheet glass and on described 2nd sheet glass; With
According to the described image obtained, defect candidate section is extracted out, and described defect candidate section is set as described defect candidate scope to glass width Directional Extension, make described defect candidate scope be greater than the step of described defect candidate section.
6. a sheet glass manufacturing apparatus, is characterized in that, this sheet glass manufacturing apparatus manufactures multiple sheet glass, and this sheet glass manufacturing apparatus possesses:
Forming part, it makes the 1st sheet glass and 2nd formed from plate glass different from described 1st sheet glass;
Test section, it detects the defect candidate scope of the defect candidate scope of described 1st sheet glass and described 2nd sheet glass; With
Detection unit, when the position existence range overlap of the defect candidate scope of its position in the defect candidate scope of described 1st sheet glass and described 2nd sheet glass, be judged to be to there is the defect produced continuously at described 1st sheet glass and described 2nd sheet glass
Described test section contains shoot part and operational part,
Described shoot part obtains the image on described 1st sheet glass and on described 2nd sheet glass,
Defect candidate section is extracted out by the image that described operational part obtains according to described shoot part, and described defect candidate section is set as described defect candidate scope to glass width Directional Extension, make described defect candidate scope be greater than described defect candidate section.
7. a sheet glass manufacture method, is characterized in that: the method is the method manufacturing multiple sheet glass, and described sheet glass manufacture method contains:
Forming step, in this forming step, makes the 1st sheet glass and 2nd formed from plate glass different from described 1st sheet glass;
Detecting step, in this detecting step, detects the defect candidate scope of described 1st sheet glass and the defect candidate scope of described 2nd sheet glass; With
Determination step, in this determination step, when the position existence range overlap of the position of the defect candidate scope of described 1st sheet glass and the defect candidate scope of described 2nd sheet glass, be judged to be to there is the defect produced continuously at described 1st sheet glass and described 2nd sheet glass
Described detecting step contains:
Obtain the step of the image on described 1st sheet glass and on described 2nd sheet glass; With
According to the described image obtained, defect candidate section is extracted out, and described defect candidate section is set as described defect candidate scope to glass width Directional Extension, make described defect candidate scope be greater than the step of described defect candidate section.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-202283 | 2011-09-15 | ||
| JP2011202283A JP5796430B2 (en) | 2011-09-15 | 2011-09-15 | Sheet glass inspection apparatus, sheet glass inspection method, sheet glass manufacturing apparatus, and sheet glass manufacturing method |
| PCT/JP2012/072624 WO2013038972A1 (en) | 2011-09-15 | 2012-09-05 | Plate glass inspection device, plate glass inspection method, plate glass manufacturing device, and plate glass manufacturing method |
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| Publication Number | Publication Date |
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| CN103718024A CN103718024A (en) | 2014-04-09 |
| CN103718024B true CN103718024B (en) | 2016-03-09 |
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| CN201280034975.5A Active CN103718024B (en) | 2011-09-15 | 2012-09-05 | Sheet glass testing fixture, sheet glass inspection method, sheet glass manufacturing apparatus and sheet glass manufacture method |
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| Country | Link |
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| JP (1) | JP5796430B2 (en) |
| KR (1) | KR101935979B1 (en) |
| CN (1) | CN103718024B (en) |
| TW (1) | TWI548871B (en) |
| WO (1) | WO2013038972A1 (en) |
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| WO2015125943A1 (en) * | 2014-02-21 | 2015-08-27 | ＡｖａｎＳｔｒａｔｅ株式会社 | Glass plate production method and glass plate production device |
| KR101733018B1 (en) * | 2015-02-25 | 2017-05-24 | 동우 화인켐 주식회사 | Apparatus and method for detecting defect of optical film |
| JP6674138B2 (en) * | 2016-05-12 | 2020-04-01 | 日本電気硝子株式会社 | Glass plate manufacturing apparatus and glass plate manufacturing method |
| WO2021192543A1 (en) * | 2020-03-25 | 2021-09-30 | 日本電気硝子株式会社 | Glass plate production method and production device therefor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004125686A (en) * | 2002-10-04 | 2004-04-22 | Nippon Steel Corp | Method and apparatus for detecting flaw of steel sheet, computer program, and computer-readable recording medium |
| JP2005069989A (en) * | 2003-08-27 | 2005-03-17 | Apollo Mec:Kk | Inspection apparatus |
| CN102099672A (en) * | 2008-07-18 | 2011-06-15 | 旭硝子株式会社 | Image data processing apparatus and method for defect inspection, defect inspecting apparatus and method using the image data processing apparatus and method, board-like body manufacturing method using the defect inspecting apparatus and method, and storage medium |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3218908B2 (en) * | 1995-03-23 | 2001-10-15 | 日本鋼管株式会社 | Surface flaw inspection method and apparatus |
| EP1816466B1 (en) * | 2004-11-24 | 2010-06-23 | Asahi Glass Company, Limited | Method and device for inspecting defect of transparent plate body |
| JP4626982B2 (en) * | 2005-02-10 | 2011-02-09 | セントラル硝子株式会社 | Defect detection device and detection method for end face of glass plate |
| US7283227B2 (en) * | 2005-11-21 | 2007-10-16 | Corning Incorporated | Oblique transmission illumination inspection system and method for inspecting a glass sheet |
| CN101558292B (en) * | 2006-12-14 | 2013-08-28 | 日本电气硝子株式会社 | Glass sheet defect detection device, glass sheet manufacturing method, glass sheet, glass sheet quality judging device, and glass sheet inspection method |
| JP2010019834A (en) * | 2008-06-13 | 2010-01-28 | Nippon Electric Glass Co Ltd | Glass plate defect inspection apparatus and manufacturing method of glass plate for flat panel display |
| JP5206697B2 (en) * | 2009-01-15 | 2013-06-12 | 新日鐵住金株式会社 | Continuous defect determination method, continuous defect determination device, and program |
| JP5373593B2 (en) * | 2009-12-25 | 2013-12-18 | シャープ株式会社 | Image processing method, image processing apparatus, program, and recording medium |
-
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004125686A (en) * | 2002-10-04 | 2004-04-22 | Nippon Steel Corp | Method and apparatus for detecting flaw of steel sheet, computer program, and computer-readable recording medium |
| JP2005069989A (en) * | 2003-08-27 | 2005-03-17 | Apollo Mec:Kk | Inspection apparatus |
| CN102099672A (en) * | 2008-07-18 | 2011-06-15 | 旭硝子株式会社 | Image data processing apparatus and method for defect inspection, defect inspecting apparatus and method using the image data processing apparatus and method, board-like body manufacturing method using the defect inspecting apparatus and method, and storage medium |
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| Publication number | Publication date |
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| CN103718024A (en) | 2014-04-09 |
| TWI548871B (en) | 2016-09-11 |
| KR20140060280A (en) | 2014-05-19 |
| JP5796430B2 (en) | 2015-10-21 |
| KR101935979B1 (en) | 2019-01-07 |
| JP2013064615A (en) | 2013-04-11 |
| WO2013038972A1 (en) | 2013-03-21 |
| TW201312097A (en) | 2013-03-16 |
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