System and method for detecting surface defects of flat glass
A technology for glass surface and flat plate detection, applied in measuring devices, material analysis through optical means, instruments, etc., can solve problems such as low production efficiency, high production cost, and inability to improve efficiency, so as to prevent the occurrence of defects, The effect of improving work efficiency and improving accuracy
Active Publication Date: 2012-07-11
北京东旭天泽科技有限公司
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Problems solved by technology
Due to the use of strong light, people face the glass for a long time to check the defects, and the eyes are easy to be hurt, and the eyes are prone to fatigue when inspecting the defects under strong light, and the efficiency cannot be improved. In the glass production line with high automation efficiency, therefore It is often necessary to set up two manual inspection stations for the inspection of glass defects, so as to carry out limited defect inspection on the glass surface in time. While the production efficiency is low, the production cost will increase accordingly
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[0019] see figure 1 , a system for detecting surface defects of flat glass, the structure of the above system includes a driving mechanism for conveying glass, a conveying mechanism 1, and a tightening mechanism for vertically positioning the flat glass 2 on the conveying mechanism 1, and the system structure is also provided with There are light source irradiation mechanism and imaging display mechanism 3, the light source irradiation mechanism and imaging display mechanism are respectively positioned on both sides of the flat glass 2, and the light source irradiation mechanism displays the light source on the imaging display mechanism 3 after passing through the flat glass 2.
[0020] The above-mentioned light source irradiation mechanism is a surface light source irradiation mechanism 4 that is irradiated with light perpendicular to the surface of the plate glass 2. The surface light source irradiation mechanism 4 is provided with an optical prism assembly, a mask that makes...
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The invention relates to a system and a method for detecting surface defects of a piece of flat glass, which can improve inspection efficiency during the mass production of the flat glass and realize the quick and efficient glass defect analysis through simple changes of an inspection method. The adopted technical scheme is that: the structure of the system comprises a driving mechanism for conveying glass, a conveying mechanism, and an intensifying mechanism for vertically positioning the flat glass on the conveying mechanism, and is also provided with a light source irradiation mechanism and an imaging displaying mechanism, wherein the light source irradiation mechanism and the imaging displaying mechanism are positioned and arranged on two sides of the flat glass respectively, and the light source irradiation mechanism allows a light source to pass through the flat glass and then the light source is displayed on the imaging displaying mechanism. The system and the method further improve the working efficiency in the process of batch production while ensuring that the accuracy of detecting the defects is improved; besides, the system can ensure the minimum physical contact with a large-scale glass substrate and can effectively prevent the generation of the defects during an examination.
Description
technical field [0001] The field of defect detection in the flat glass production line of the present invention relates to a system and method for detecting defects on the surface of flat glass, especially a system and method for detecting defects quickly and accurately. Background technique [0002] TFT-LCD (Thin Film Transistor Liquid Crystal Display), PDP (Plasma Display Panel), EL (Electro luminescence) and other flat-panel display technologies are increasingly used, and high-efficiency and high-quality production capacity is receiving more and more attention in the production and manufacture of glass substrates. The glass substrate plays an important role in the upstream of the flat panel display, and its size determines the generation of the panel. The production of high-quality glass substrates is the goal of manufacturers to keep making progress. Among the currently known production technologies, the quality of the glass substrate produced by the vertical down-drawin...
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IPC IPC(8): G01N21/896G02F1/13
Inventor 李赫然
Owner 北京东旭天泽科技有限公司