| 摘要 |
PURPOSE:To prevent a stay due to the standing wave and allow reciprocating conveyance by connecting an exciting piezoelectric vibrator and an absorbing piezoelectric vibrator to an elastic conveying plate at a distance in a powder conveying device. CONSTITUTION:An exciting piezoelectric vibrator 5 is driven by a power supply 7 at an adequate frequency. The vibration is transmitted from a receiving section 51 to a conveying plate 1, the conveying plate 1 is bent, and the oscillatory wave is propagated from one end to the other end of the conveying plate 1. This wave motion is absorbed by an absorbing piezoelectric vibrator 6, and the conveying plate 1 has only the traveling wave in the arrow X direction, and no standing wave exists. Accordingly, smooth conveyance with no stay can be performed. In addition, if the piezoelectric vibrators 5, 6 are reversed in function, conveyance can be reversed. |
