APPARATUS FOR DETECTING DEFECTS ON A BOTTLE MOUTH WITH A SCREW THREAD

摘要

An apparatus for detecting defects on a bottle mouth has an annular illuminator, a reflecting mirror for forming a planar image of the bottle mouth, a CCD camera for detecting the planar image and an operation unit for operating electric signals produced by the CCD camera to judge existence of the defects on the bottle mouth. Detecting operation of defects can be carried out instantly without rotating the bottle.