| 摘要 |
PROBLEM TO BE SOLVED: To provide a wiping device including an ultrasonic wave generator for generating ultrasonic waves to the exterior or interior of a wiping liquid tank, in which a cleaning fluid is accumulated, to prevent dirt from adhering to a cleaning unit for cleaning a wiping roller.SOLUTION: A wiping device in an intaglio printing machine includes an ultrasonic wave generator for vibrating a cleaning fluid in a wiping tank. The ultrasonic wave generator has: an oscillator which generates electric vibration; and a piezoelectric vibrator which converts the electric vibration into mechanical vibration to generate ultrasonic waves.SELECTED DRAWING: Figure 1 |
