Pinhole inspection apparatus for can bodies
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United States of America Patent
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Dec 8, 2015
Grant Date -
Jul 9, 2015
app pub date -
Apr 30, 2013
filing date -
Jun 21, 2012
priority date (Note) -
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Abstract
Provided is a pinhole inspection apparatus for can bodies capable of effectively preventing entrance of ambient light to a photodetector side through a gap between a movable plate and a rotating turret that may be formed due to a surface condition or the like. The pinhole inspection apparatus of the present invention includes: a rotating turret having a penetrating through hole; a movable plate provided on a stationary frame opposite the rotating turret; a can body holding member supporting a can body; a photodetector detecting light leaking inside the can body; and a light source irradiating the can body with light. The pinhole inspection apparatus is characterized in that a detour path formed by a pair of shield parts spaced apart a predetermined distance and opposite from each other is provided as a shield mechanism in an entire outer peripheral region of the rotating turret.
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