Apparatus for inspecting can body and spindle face for use in inspecting can body thereof and manufacturing method for spindle face

摘要

PROBLEM TO BE SOLVED: To provide a can body inspection device capable of certainly detecting a defect such as a pinhole, a spindle face used for the can body inspection device, and a manufacturing method of the spindle face.SOLUTION: The spindle face 7 presses the bottom of a can body 1 to keep the state in which an opening 11 of the can body 1 is closely attached to main turret 6 to prevent light leak, when inspection light is radiated laterally to the outer surface of the can body 1 and the inspection light leaking from the outer surface of the can body 1 to the inside is detected. An irregular reflection unit 73 for scattering the inspection light is disposed in a plate-like member 70 made of a light transmissive material.