Patent ID: 6275287
Filing Date: 2001-08-14
Classification: G01N

Abstract:
A check detector for a glass bottle neck and finish portion comprising:a bottle rotating means for rotating a glass bottle successively conveyed to a fixed position in the course of a glass bottle handing route;a slide block which can change position freely in the width direction and vertical direction of the handling route;a plurality of light emitters for emitting to the neck and finish portion of the glass bottle rotated at the fixed position, light mounted to the slide block, while the emitted region of the emitting light by the plurality of the light emitters is fixed to one position and the relevant emitting light is converged to the emitted region from directions which differ from one another;a plurality of light receivers equipped with light receiving sensors for detecting the reflected light reflected at any checks generated at the neck and finish portion, the reflected light reflected at the mold seam formed at the neck and finish portion, and direct light transmitted through the neck and finish portion;a light emitter control section for switching on a plurality of the light emitters successively and repeatedly in a light emitting condition;a light receiver control section for constantly operating a plurality of light receivers during the light emitting condition so that each of the reflected lights and direct light are inputted as data; and,control means for processing the data to eliminate the data generated by the light reflected at the mold seam and the direct light transmitted through the neck and finish portion wherein each of the light receiving sensors is composed with diode arrays comprising a plurality of light receiving elements divided in advance so as to correspond to the vertical position of the neck and finish portion and at the same time, the data inputted as reflected light reflected at the seam and the data inputted as the direct light transmitting through the neck and finish portion are subsequently deleted, respectively.