| 摘要 |
PROBLEM TO BE SOLVED: To provide a container conveying device capable of increasing the evacuation capacity on the upstream side of a rotary valve for supplying the negative pressure to a suction cup by forming a chamber in a bearing unit for rotatably supporting a main rotor. SOLUTION: The container conveying device includes a suction cup 25 provided on a container stand 22 to suck a bottom surface of a container 1, a rotary valve 31 in which an arc-shaped groove 33g formed in a fixed side member 33 and a communicating hole 36h formed in a rotating side member 36 are intermittently communicated with each other, and a bearing unit BU1 which rotatably supports a main rotor 10 and is fixed to a supporting plate 11. The bearing unit BU1 includes an inner cylinder 13 for holding a bearing 14 for rotatably supporting a spindle 20 of the main rotor 10, and an outer cylinder 12 for accommodating the inner cylinder 13. A chamber 42 is formed between the inner cylinder 13 and the outer cylinder 12, the chamber 42 is communicated with the arc-shaped groove 33g of the rotary valve 31, and also communicated with a vacuum source. COPYRIGHT: (C)2011,JPO&INPIT |
