RESIN MOLDING INSPECTION METHOD, INSPECTION DEVICE, AND COMPUTER PROGRAM USED THEREFOR

• Main Author: TABUCHI HIROYASU
• Format: Patent
• Language: English; Japanese
• Published: 21.03.2024
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

To efficiently inspect the state of the thickness deviation of resin moldings and obtain objective and highly reliable inspection results.SOLUTION: The inspection range of a bottle as a blow molded resin molding is illuminated by excitation light such as ultraviolet light, and detection object light such as fluorescence in a wavelength region different from the wavelength region of the excitation light is radiated from the bottle. The inspection range of the bottle being illuminated by the excitation light is imaged in such a way that the wavelength region of the detection object light is included in the wavelength region of the imaging object, whereas the wavelength region of the excitation light is excluded from the wavelength region of the imaging object, and the state of thickness deviation in the inspection range is inspected on the basis of the intensity distribution of the detection object light in the captured image.SELECTED DRAWING: Figure 9 【課題】樹脂成形品の偏肉の状態を効率よく検査し、客観的でかつ信頼性の高い検査結果を得る。【解決手段】ブロー成形された樹脂成形品としてのボトルの検査範囲を紫外光等の励起光によって照明して、励起光の波長域とは異なる波長域の蛍光等の検出対象光をボトルから放出させ、励起光で照明されたボトルの検査範囲を、検出対象光の波長域が撮像対象の波長域に含まれる一方で励起光の波長域が撮像対象の波長域からは除かれるようにして撮像し、撮像された画像中の検出対象光の強度分布に基づいて、検査範囲における偏肉の状態を検査する。【選択図】図９