Feed roll wear compensation scheme
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United States of America Patent
Stats
-
Aug 30, 1994
Grant Date -
N/A
app pub date -
Dec 17, 1993
filing date -
Dec 17, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A feed roll wear compensating method and apparatus measures the surface speed of the feed and nudger rolls that are rotated by a motor and adjusts the motor speed to prevent sheet damage from occurring. The surface speed of each of the rolls is measured by sensors that detect the position of a moving sheet and the signal from the sensors is used to deduce the reduction in diameter of the rolls due to wear. The roll wear information is used to adjust the nominal elevator height to maintain constant force on the sheets and to provide feedback for adaptive control of the feed motor to adjust the speed of the feed roll.
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