Feeder with adjustable time cycle and method
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United States of America Patent
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-
Jan 24, 2012
Grant Date -
Feb 25, 2010
app pub date -
Aug 17, 2009
filing date -
Dec 28, 2005
priority date (Note) -
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status (Latency Note)
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Abstract
A timed feeder for feeding corrugated boards to nip rolls of a box finishing machine. An indexing drive mechanism, driven by a computer-controlled servo motor, activates a feed member and has a feed phase when it drives the board to the nip rolls, and a dwell phase when the feed member is away from the feed path and the output shaft of the indexing mechanism is at zero velocity. During the feed phase, the output shaft of the indexing mechanism accelerates the feed member and the board beyond the nip roll velocity and then decelerates them to the nip roll velocity at the point where the board enters the nip rolls. During the dwell phase the input shaft is either accelerated or decelerated to change the duration of the cycle.
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