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    • 7. 发明专利
    • Resin moldings of burr detecting device
    • JP5302600B2
    • 2013-10-02
    • JP2008219222
    • 2008-08-28
    • 株式会社前川製作所
    • 一裕 服部智輝 山下範夫 町田広章 村並
    • B29C45/76G01N21/88
    • PROBLEM TO BE SOLVED: To provide a flash detection device for a resin molded article which can precisely detect a thin film-like flash which is difficult to detect. SOLUTION: In the flash detection device for the resin molded article for detecting a flash generated on the resin molded article 20 formed of a colored resin, the flash is a thin film-like flash and its ejection direction to the resin molded article 20 is presumable. The flash detection device comprises: image photographing devices 5, 6 which are installed in a direction almost orthogonal to the ejection direction, and photograph an image of the resin molded article 20; and illuminating devices 7, 8 which are positioned on the opposite side to the image photographing devices 5, 6 with the resin molded article 20 interposing therebetween, is found in a location slightly deviated from an optic axis of the image photographing devices 5, 6, and emits an illuminating light including at least a short wavelength to a presumed position of the thin film-like flash. The illuminating light emitted from the illuminating devices 7, 8 reflects off the resin molded article 20, then an image formed by scattered light coming into the image photographing devices 5, 6 is photographed, and an image processing device 10 detects whether the thin film-like flash exists or not, according to the image. COPYRIGHT: (C)2010,JPO&INPIT