Wet press with vibration control
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United States of America Patent
Stats
-
Feb 20, 1990
Grant Date -
N/A
app pub date -
Jun 3, 1988
filing date -
Jun 13, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A wet press of a paper-making machine includes a pair of rolls defining a roll gap through which the paper to be treated and belt-shaped felt are simultaneously conducted. The felt is guided in a closed loop path by additional rolls which include a tightening roll. The tightening roll can be tilted to reduce roll vibrations by tightening the felt to set vibratory marks formed in the felt at an angle relative to the transverse width of the felt and the roll gap. A controllable positioning device is provided which includes a motor operated by a controller during predetermined time intervals or as a function of actual vibrations sensed at the pair of rolls forming the roll gap to automatically vary the tilt angle.
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Cited Art Landscape
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