Pinhole inspection apparatus for can bodies

The present invention provides a pinhole inspection apparatus for can bodies including a rotary plate having a penetrating through hole, a movable plate provided on a stationary frame opposite the rotary plate, a can body holding member that holds a can body, a photodetector that detects light leaki...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Kouji Yasuhiro, Seo Tomoki, Ishii Yuuma
Format:	Patent
Sprache:	eng
Schlagworte:	INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS TESTING TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR
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Beschreibung
Zusammenfassung:	The present invention provides a pinhole inspection apparatus for can bodies including a rotary plate having a penetrating through hole, a movable plate provided on a stationary frame opposite the rotary plate, a can body holding member that holds a can body, a photodetector that detects light leaking inside the can body, and a light source that irradiates an outer circumferential surface of the can body with light. The movable plate includes a ring plate attached to a front surface of a piston member, which has a penetrating hole in a central portion thereof, via a joint member. The ring plate is provided with a shield member formed by an annular member that is formed concentric to the penetrating hole. The shield member is brought into sliding contact with the rotary plate by a pressure application mechanism.