Doctor control systems for papermaking machines and related methods
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United States of America Patent
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Jan 23, 2018
Issued Date -
N/A
app pub date -
Jul 14, 2016
filing date -
Jul 16, 2015
priority date (Note) -
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Abstract
A papermaking machine includes a Yankee dryer, a doctor, and a doctor blade loading control system. The doctor blade loading control system includes a first doctor loading cylinder coupled to the doctor and configured to selectively apply a loading force to the doctor, a second doctor loading cylinder coupled to the doctor and configured to selectively apply a loading force to the doctor, a first air line in communication with the first doctor loading cylinder, a second air line in communication with the second doctor loading cylinder, a first electronic pressure controller configured to control a loading pressure of the first doctor loading cylinder on the doctor based on a first loading pressure setpoint, and a second electronic pressure controller configured to control a loading pressure of the second doctor loading cylinder on the doctor based on a second loading pressure setpoint.
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