Cutting – With means to monitor and control operation – Including means to correct the sensed operation
Patent
1992-05-26
1993-11-02
Smith, Scott
Cutting
With means to monitor and control operation
Including means to correct the sensed operation
83334, 83349, 83509, 83650, 355310, B26D 500
Patent
active
052575675
ABSTRACT:
A sheet cutting apparatus is provided for cutting sheets from one or more media supply rolls. A rotary cutter bar cooperates with a stationary bar to sever the media as it is fed between the two bars. The rotary cutter bar is driven by a motor whose output is monitored by a speed control circuit. During a cut cycle, the motor speed may decrease with an increasing load caused, for example, by a thicker weight media being cut. Uncorrected, the motor speed would decrease, causing a deviation in the straightness of the cut. The speed control circuit senses the changes from the normal speed of the motor during the cutting cycle and generates a feedback signal to the motor to raise the speed to the operation level.
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Manno Eugene J.
Schlachter Lisa M.
Walker Kris J.
Smith Scott
Xerox Corporation
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