| 摘要 |
PROBLEM TO BE SOLVED: To provide a pressing device capable of reducing noise due to vibration of blade.SOLUTION: A pressing device 40 comprises a blade 51 scratching foreign substance attached on each of press rolls 41a, and each microphone 61a detecting noise generated due to vibration of the blade 51 upon scratching the foreign substance. In addition, the pressing device 40 comprises an excitation device 52 exciting the blade 51 to suppress noise generated on the blade 51 when each microphone 61a detects generation of noise on the blade 51.SELECTED DRAWING: Figure 5 |
