A quality inspection system and method for PCB double-sided conformal paint coating

A three-proof paint and coating technology, which is applied in the direction of optical testing flaws/defects, material excitation analysis, fluorescence/phosphorescence, etc., to achieve the effects of shortening the length of the pipeline, simple methods, and ensuring efficiency and accuracy

Active Publication Date: 2020-01-10
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the shortcomings of the above-mentioned existing manual visual inspection methods, and provide a PCB double-sided conformal paint coating quality inspection system with high reliability, accurate detection and high efficiency

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  • A quality inspection system and method for PCB double-sided conformal paint coating
  • A quality inspection system and method for PCB double-sided conformal paint coating
  • A quality inspection system and method for PCB double-sided conformal paint coating

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Embodiment Construction

[0063] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, but the implementation method of the present invention is not limited thereto.

[0064] Such as figure 1 and figure 2 As shown, a PCB double-sided conformal paint coating quality inspection system provided by the present invention includes a host computer 1, a controller 2, a light-proof housing 3, a first light source module 5, a second light source module 6, and an image acquisition module 4. The carrier 9, the first position detection module 10, the second position detection module 12, the first position fixing module 11, the second position fixing module 13, and the carrier turning module 8;

[0065] The first light source module 5, the second light source module 6, the image acquisition module 4, the carrier 9, the first position detection module 10, the second position detection module 12, the first position fixing module 11, th...

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Abstract

The invention relates to a PCB double-sided tri-proof paint coating quality detecting system and method, which belongs to the field of coating quality detection. The system comprises an upper computer, a controller, a light source module, an image acquisition module, a carrier, a position detecting module, a position fixing module and a carrier turnover module, wherein the upper computer is connected with the light source module, the image acquisition module, the position detecting module, the position fixing module, the carrier turnover module through the controller; and one or more to-be-detected PCBs are carried on the carrier. The system applies a color index method to divide a coating area, and compares with an MASK image to detect tri-proof paint coating quality. The system is simplein structure, can realize double-sided detection through a plate turnover device, reduces the cost, is high in detecting speed and is high in precision.

Description

technical field [0001] The invention relates to the field of coating quality detection, in particular to a coating quality detection system and method for PCB double-sided conformal paint. Background technique [0002] In the chemical, vibration, high dust, salt spray, humidity and high temperature environment of the industrial site, PCB may have corrosion, softening, deformation, mildew and other problems, resulting in circuit board circuit failure. Conformal paint is a transparent coating with a special formula, which forms a layer of three-defense protective film (moisture-proof, salt-spray-proof, mildew-proof) on the surface of the circuit board, thereby improving the reliability of the circuit board, increasing its safety factor, and Guarantee its service life. [0003] At present, the quality inspection of PCB conformal paint coating mainly relies on manual observation under ultraviolet light. This method is easily affected by the subjective factors of the testers, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/95G01N21/64
CPCG01N21/64G01N21/95
Inventor 张阳阳黄文君陈梦迟罗志君
Owner ZHEJIANG UNIV
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