CN205426762U - Glass piece stress spot inspection lamp house - Google Patents
Glass piece stress spot inspection lamp house Download PDFInfo
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- CN205426762U CN205426762U CN201521037207.2U CN201521037207U CN205426762U CN 205426762 U CN205426762 U CN 205426762U CN 201521037207 U CN201521037207 U CN 201521037207U CN 205426762 U CN205426762 U CN 205426762U
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- pvb film
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- stress pattern
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Abstract
The utility model provides a glass piece stress spot inspection lamp house, including area source and polarization screen, the area source is the fluorescent tube of a plurality of vertical evenly distributed in the lamp house, polarization screen is fixed in area source the place ahead on the lamp house, includes transparent glass plate A, transparent PVB film or milky white PVB film, vibration -damping sheet, milky white PVB film or transparent PVB film, transparent glass plate B partially in proper order, wherein, transparent PVB film and milky white PVB film are each one in the polarization screen. The batch detection that can satisfy large tracts of land physics tempered glass pieces stress spot and put the line into production is created in the invention.
Description
Technical field
The invention belongs to post processed glass detection technique field, is specifically related to a kind of On line inspection lamp box being applicable to large area physical toughened glass strain speckle.
Background technology
Under the conditions of polarisation or part polarisation irradiate, the coloured speckle of irregular band caused owing to internal stress makes glass produce birefringent phenomenon is referred to as stress pattern.Though the existence of stress pattern does not affect the security performance of safety glass and through effect, but the extensive application along with large area tempering cladding glass, the appearance of cladding glass is required more and more higher by people, and glass post-processing enterprise and client are more and more higher to the attention rate of cladding glass tempering stress speckle.
The observation of current physical toughened glass strain speckle is often turned on light in outdoor or darkroom, utilizes polaroid glasses to check under special environment special angle, or utilizes some glass strains present in prior art to detect device to check specially.Above-mentioned inspection method has shortcomings with inconvenient:
(1) realizing sheet inspection troublesome poeration, either use polaroid glasses or special detection device, check that safety glass stress pattern needs glass to move to ad-hoc location, selects to check under particular light ray, the every difficulty all carrying out detecting is big；
(2) random factor impact is big, when outdoor observation condition is unsatisfactory for or the change of environment, stress pattern presents different states, random factor affects stress pattern observation, does not observes stress pattern, when certain angle is observed after installation before often occurring installing, stress pattern is obvious, affecting outward appearance, glass replacing difficulty is big and cost is high, causes the most serious loss；
(3) stress pattern configuration is difficult to embody, and existing detection device can only carry out the observation of little scope mostly, and angle and orientation are different, is difficult to observe comprehensively；
(4) existing detection device is often further equipped with the analyses such as computer or measuring equipment, though the defect of specific location point can be carried out Accurate Analysis, but the longest, cost is big, easily take a part for the whole, it is impossible to meet the purpose quickly detected on a large scale in online production and to working condition rapid feedback.
Summary of the invention
The invention is for solving the problems of the prior art, it is provided that a kind of sheet glass stress pattern checks lamp box, it is possible to meet the large area physical toughened sheet glass stress pattern batch detection at production line.
A kind of sheet glass stress pattern that the invention provides checks lamp box, including area source and polarization screen, described area source is some fluorescent tubes being vertically uniformly distributed in lamp box, described polarization screen is fixed on area source front on lamp box, includes transparent glass sheet A, transparent PVB film or milky white PVB film, polaroid, milky white PVB film or transparent PVB film, transparent glass sheet B successively.Wherein, in described polarization screen, transparent PVB film and each one of milky white PVB film, the most transparent PVB film and milky white PVB film need to exist simultaneously.
Further, described fluorescent tube is preferably LED power saving fluorescent lamps.Preferably, described fluorescent tube length is not less than 800mm, and fluorescent tube spacing is 80-120mm, and fluorescent tube overall width in lamp box is preferred with the width not less than sheet glass to be detected, and the fluorescent tube distance away from polarization screen is 15-20mm.The reasonable Arrangement of above-mentioned fluorescent tube size and distribution is conducive to providing manifesting of the white light source of the uniform light distribution of large area, beneficially stress pattern for the detection of stress pattern.
Further, total transmitance of described polarization screen is 28%-36%, it is preferably 30%-34%, transmitance is too low will make light the most weak, cannot clear view to stress pattern, transmitance is too high easily makes fluorescent tube be seen from outside and reflect sheet glass to be detected, affects the observation of stress pattern, and the fluorescent tube high light being reflected on sheet glass to be detected causes refraction to be likely to the dispersion causing non-stressed speckle to cause, cause testing result generation deviation.
Wherein, described transparent glass sheet A and transparent glass sheet B can be identical or different, arbitrarily independently selected from the one in simple glass, safety glass, semi-tempered glass.Described transparent PVB film and/or milky white PVB film are preferably 0.76mm thickness film, and the transmitance of transparent PVB film is more than 87%, and the transmitance of milky white PVB film is at 54%-65%.Further, described transparent PVB film and milky white PVB film are respectively preferably moisture content at 0.4%-0.6%, thermostability at film below 0.15 of more than 0.4BTU/1B, thermal coefficient of expansion, suitable moisture content is conducive to film to close stability bonding after sheet with glass, it is under the long-term irradiation of light source additionally, due to PVB film, need that there is good heat stability and radioresistance, suitable thermostability and thermal coefficient of expansion ensure that PVB film will not be deformed and the defects such as degumming under long-term illumination, it is to avoid transmitance etc. change.
Further, it is additionally provided with on described lamp box and connects the switch having sensor, described switch is connected with each fluorescent tube, described sensor is for sensing the process of sheet glass to be detected, when there being sheet glass to be detected to pass through on-off control fluorescent tube open, it is simple to sheet glass to be detected is detected, when in a period of time without sheet glass to be detected through out-of-date, on-off control fluorescent tube is closed, and saves the energy.
The invention provides the benefit that: be capable of the large area physical toughened sheet glass stress pattern real-time batch detection at production line, observe comprehensive, sensitive and accurate, without sheet glass to be detected being carried out the movement of ad-hoc location, and can be according to checking that result quickly adjusts working condition, reduce and produce fraction defective, this apparatus structure is simple, with low cost, life-span length, easy to use, it is adaptable to large-scale industry is promoted the use of.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of the invention；
Fig. 2 is the structural representation of polarization screen；
Fig. 3 is schematic diagram during the invention use；
Fig. 4 is the sheet glass Detection results figure of the stress pattern being evenly distributed；
Fig. 5 is the sheet glass Detection results figure that local stress speckle is concentrated.
Wherein, 1-fluorescent tube；2-polarization screen；3-support；4-switchs；5-sensor；21-transparent glass sheet A；22-transparent PVB film；23-polaroid；24-milky white PVB film；25-transparent glass sheet B；6-sheet glass to be detected.
Detailed description of the invention
Below by combining accompanying drawing, the invention is further described.
A kind of embodiment of the invention is as it is shown in figure 1, include some fluorescent tubes 1 being vertically distributed in lamp box and polarization screen 2, and described polarization screen 2 is fixed on fluorescent tube 1 front on lamp box, and described light box is supported by the support 3 being fixed on lower section.Wherein as in figure 2 it is shown, described polarization screen 2 includes transparent glass sheet A21, transparent PVB film 22, polaroid 23, milky white PVB film 24, transparent glass sheet B25 successively.Described fluorescent tube 1 is LED power saving fluorescent lamps.The described a length of 1000mm of fluorescent tube 1, fluorescent tube spacing is 100mm, and fluorescent tube overall width in lamp box is preferred with the width not less than sheet glass to be detected, and the fluorescent tube 1 distance away from polarization screen 2 is 20mm.Being additionally provided with on described lamp box and connect the switch 4 having sensor 5, described switch 4 is connected with each fluorescent tube 1.
Total transmitance of described polarization screen 2 is 32.31%, and wherein, described transparent glass sheet A and transparent glass sheet B can be identical or different, arbitrarily independently selected from the one in simple glass, safety glass, semi-tempered glass.Described transparent PVB film and milky white PVB film are 0.76mm thickness film, and the transmitance of transparent PVB film is more than 87%, and the transmitance of milky white PVB film is at 54%-65%.Described transparent PVB film moisture content is 0.4%, thermostability is 0.53BTU/1B, thermal coefficient of expansion is 0.128, and described milky white PVB film moisture content is 0.4%, thermostability is 0.51BTU/1B, thermal coefficient of expansion is 0.132.
In order to test the performance of polarization screen 2 in the invention, it is ensured that the stability of stress pattern observation, use the material as polarization screen in the invention 2 to make some 300mm × 300mm samples under identical condition and situation, and test as follows:
1, heat resistance test
Before test sample is disposed vertically in the warm water of 65 DEG C ± 3 DEG C 3 minutes, it is to avoid thermal stress and cause glass heat to burst, then sample is immediately placed in the boiling water of 100 DEG C, boils 2 hours, after test, sample edge does not produces bubble or degumming.
2, moisture resistance properties
Being perpendicular to sample in airtight container last 2 weeks, the temperature of container is maintained at 50 DEG C, and relative humidity is 91%-99%.Bubble and degumming is not produced beyond edge 15mm part after test.
3, radiation-resistant property
Using uviol lamp that sample is carried out irradiation test, radiation source is medium pressure mercury vapor arc lamp in ozone free quartz tube type.The axle of lamp housing should be vertical.The nominal size of lamp is long 360mm, a diameter of 9.5mm, the long 300mm ± 14mm of electric arc, and its operating power is 750W ± 50W.Put sample on the device away from lamp axle 230mm, and make on its length direction parallel with lamp axle.Sample rotates, to ensure Uniform Irradiation around the radiation source being arranged on axle center with the speed of 1r/min～5r/min.Keeping specimen temperature 45 DEG C ± 5 DEG C in whole test, exposure time is 100h.The transmitance of every piece of sample irradiated site is measured after predose.After test, sample does not produces notable variable color, bubble and research of chaotic phenomenon, and after irradiation, visible light transmissivity is not more than 10% than pre-irradiation slip.
The occupation mode of the invention is as shown in Figure 3, the invention is positioned over chip select platform side during annealing furnace bottom sheet, and the sensor 5 being connected with switch 4 is fixed on side, annealing furnace front end, when sensor 5 sense sheet glass through time control switch open, fluorescent tube 1 electrified light emitting, testing staff can carry out the inspection of stress pattern at the opposite side of chip select platform.The observing effect figure that the stress pattern being evenly distributed and local stress speckle are concentrated the most as shown in Figures 4 and 5, by the use of the invention, can quickly be checked by testing staff easily by the integrated stress speckle situation of large-area glass sheet.
The foregoing is only the preferred embodiment of the invention; not in order to limit the invention; within all spirit in the invention and principle, any modification, equivalent substitution and improvement etc. made, within should be included in the protection domain of the invention.
Claims (10)
1. a sheet glass stress pattern checks lamp box, including area source and polarization screen, described area source is some fluorescent tubes being vertically uniformly distributed in lamp box, described polarization screen is fixed on area source front on lamp box, include transparent glass sheet A, transparent PVB film or milky white PVB film, polaroid, milky white PVB film or transparent PVB film, transparent glass sheet B successively, wherein, transparent PVB film and each one of milky white PVB film in described polarization screen.
A kind of sheet glass stress pattern the most according to claim 1 checks lamp box, it is characterised in that described fluorescent tube is LED power saving fluorescent lamps.
A kind of sheet glass stress pattern the most according to claim 1 checks lamp box, it is characterized in that, described fluorescent tube length is not less than 800mm, and fluorescent tube spacing is 80-120mm, overall width is not less than the width of sheet glass to be detected in lamp box for fluorescent tube, and the fluorescent tube distance away from polarization screen is 15-20mm.
A kind of sheet glass stress pattern the most according to claim 1 checks lamp box, it is characterised in that total transmitance of described polarization screen is 28%-36%.
A kind of sheet glass stress pattern the most according to claim 4 checks lamp box, it is characterised in that total transmitance of described polarization screen is 30%-34%.
A kind of sheet glass stress pattern the most according to claim 1 checks lamp box, it is characterised in that described transparent glass sheet A and transparent glass sheet B is arbitrarily independently selected from the one in simple glass, safety glass, semi-tempered glass.
A kind of sheet glass stress pattern the most according to claim 1 checks lamp box, it is characterised in that the transmitance of described transparent PVB film is more than 87%, and the transmitance of milky white PVB film is at 54%-65%.
A kind of sheet glass stress pattern the most according to claim 1 checks lamp box, it is characterised in that described transparent PVB film and/or milky white PVB film are 0.76mm thickness film.
A kind of sheet glass stress pattern the most according to claim 1 checks lamp box, it is characterized in that, described transparent PVB film and milky white PVB film are respectively moisture content at 0.4%-0.6%, thermostability at film below 0.15 of more than 0.4BTU/1B, thermal coefficient of expansion.
A kind of sheet glass stress pattern the most according to claim 1 checks lamp box, it is characterised in that being additionally provided with on described lamp box and connect the switch having sensor, described switch is connected with each fluorescent tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521037207.2U CN205426762U (en) | 2015-12-11 | 2015-12-11 | Glass piece stress spot inspection lamp house |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521037207.2U CN205426762U (en) | 2015-12-11 | 2015-12-11 | Glass piece stress spot inspection lamp house |
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| Publication Number | Publication Date |
|---|---|
| CN205426762U true CN205426762U (en) | 2016-08-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521037207.2U Expired - Fee Related CN205426762U (en) | 2015-12-11 | 2015-12-11 | Glass piece stress spot inspection lamp house |
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| Country | Link |
|---|---|
| CN (1) | CN205426762U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105527225A (en) * | 2015-12-11 | 2016-04-27 | 天津南玻节能玻璃有限公司 | Large-area glass sheet stress mark on-line inspection light box |
| RU2790811C2 (en) * | 2018-07-24 | 2023-02-28 | Гласстек, Инк. | System and method for measuring the surface of shaped glass sheets |
-
2015
- 2015-12-11 CN CN201521037207.2U patent/CN205426762U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105527225A (en) * | 2015-12-11 | 2016-04-27 | 天津南玻节能玻璃有限公司 | Large-area glass sheet stress mark on-line inspection light box |
| RU2790811C2 (en) * | 2018-07-24 | 2023-02-28 | Гласстек, Инк. | System and method for measuring the surface of shaped glass sheets |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160803 Termination date: 20211211 |