Tokyo Weld Co., Ltd.

Hiroaki Abe

Tomoyuki Kojima

Shigeru Matsukawa

Takayuki Yamauchi

Takahiko Iwazaki

A vacuum suction system comprises a work conveyor tablehaving work receiving openings, and a table basehaving vacuum suction channelswhich communicate with the work receiving openingsof the conveyor table. The work receiving openingsand the vacuum suction channelscommunicate with a vacuum generation sourcevia a vacuum pipe. A negative pressure sensoris disposed on the vacuum pipe. Based on a signal from the negative pressure sensor, a compressed air generation sourcesupplies a compressed air to the vacuum pipeand thereby stabilizes the vacuum level in the vacuum pipe

Vacuum suction system and method of controlling the same

A work inspection systemincludes: a conveyor tablevertically positioned, and conveying works W stored in work-storing pockets; a work inspection apparatus for inspecting the works stored in the work-storing pocketsof the conveyor table; and a sorting and ejecting apparatusfor sorting the inspected works stored in the work-storing pockets of the conveyor table in accordance with a property of the works and ejecting the same. The work-storing pocketsof the conveyor tableare positioned inside the peripheryof the conveyor tableto surround the works W. The work-storing pocketsare disposed along two concentric circles on the conveyor table

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Tokyo-to, Japan

Hiroaki Abe