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    • 2. 发明申请
    • PIEZOELECTRIC CONVEYING DEVICE
    • 压电输送装置
    • WO01009022A1
    • 2001-02-08
    • PCT/US2000/040407
    • 2000-07-19
    • B65H5/00B65H5/06G11B19/20H01L41/09H02N2/10
    • B65H5/06B65H5/008B65H2403/921B65H2555/14
    • A piezoelectric sheet conveying device (100) of a linear contact type contains a pair of rollers (105) and (140) supporting the sheet (101) therebetween. The first roller (140) is driven by a piezoelectric vibrator (120) forming a contact line between the edge insert (125) of the vibrator (120) and the outer surface of the first roller (140). The vibrator (125) is urged against the first roller (140) by a bias spring (130). The hardness of the edge insert (125) of the vibrator (120) is about 5x10 N/cm and much higher than the hardness of the first roller (140) being in turn about 2x10 N/cm . As a result, elastic compressions of the first roller (140) are achieved during periodic elongations of the vibrator (120) and engagements of the first roller (140) surface. A microgroove is formed along the contact line between the vibrator (120) and the first roller (140) which transmits the rotational torque to the first roller (140) and advances the sheet (101) in a predetermined direction. Subsequent contraction of the vibrator (120) restores the outer surface of the first roller (140) to its initial shape. Both the first roller (140) and the vibrator (120) can be made as laminated structures to achieve respectively correct composite hardness and reduce the driving voltage.
    • 线性接触型的压电片材输送装置(100)包括一对在其间支撑片材(101)的辊子(105)和(140)。 第一辊(140)由在振动器(120)的边缘插入件(125)和第一辊(140)的外表面之间形成接触线的压电振动器(120)驱动。 振动器(125)通过偏置弹簧(130)被推靠在第一辊(140)上。 振动器(120)的边缘插入件(125)的硬度约为5×10 7 N / cm 2,远高于第一辊(140)的硬度大约2×10 6 N / 厘米<2>。 结果,在振动器(120)和第一辊(140)表面的接合的周期性伸长期间实现了第一辊(140)的弹性压缩。 沿着将旋转扭矩传递到第一辊(140)的振动器(120)和第一辊(140)之间的接触线形成微槽,并使板(101)沿预定方向前进。 振动器(120)的后续收缩将第一辊(140)的外表面恢复到其初始形状。 第一辊(140)和振动器(120)都可以制成层压结构,以实现分别正确的复合硬度并降低驱动电压。