CAN BODY INSPECTION APPARATUS AND METHOD

摘要

A can body inspection apparatus which prevents a drop in resistance to noise while enabling high speed inspection is provided. It is comprised of a light source control means (21, 22) for turning on the light source unit a predetermined number of times of two times or more at predetermined timings at which light can be taken in by the light-detection unit through the open end face of the can body W which is moving along the path of conveyance W, a detection signal integrating means 23 for integrating signal values based on the detection signal which is output from the light-detection unit 15 due to on operations of the light source unit 10, and a condition judging means 24 for using an integrated value which is obtained by the detection signal integrating means 23 as the basis to judge the condition of the can body.

主权项

1. A can body inspection apparatus which comprises
a conveyance mechanism which conveys a can body with an open end, a light source unit which emits light to a can body which moves along the inside of a path of conveyance, and a light-detection unit which is arranged so as to face the open end face of the can body at a predetermined position inside the path of conveyance, which takes in the light which is leaked to the inside of the can body which is irradiated by the light from said light source unit which is turned on through the open end face, and which outputs a detection signal which corresponds to the amount of light which is taken in and which uses the detection signal from said light-detection unit as the basis to inspect the can body, said can body inspection apparatus comprising light source control means for turning on said light source unit a predetermined number of times of two times or more at predetermined timings at which light can be taken in by said light-detection unit through the open end face of the can body which is moving along the path of conveyance, detection signal integrating means for integrating signal values based on the detection signal which is output from said light-detection unit due to on operations of said light source unit, and condition judging means for judging condition of the can body based on an integrated value which is obtained by said detection signal integrating means.