Apparatus for overlapping and stacking sheets
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United States of America Patent
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Apr 5, 2016
Grant Date -
Mar 12, 2015
app pub date -
Mar 25, 2013
filing date -
Apr 27, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
An apparatus for overlapping sheets and depositing them in a stack has a conveyor for transporting the sheets in a horizontal travel direction along a travel path toward a stacking region at a rapid feed speed. A braking device on the path upstream of the stacking region can grip the trailing edge of a one of the sheets. At least one supporting air bar extends above the path into the stacking region and has nozzles from which compressed air exits in the sheet travel direction. A suction belt above the travel path between the braking device and the stacking region is movable in the travel direction at least at the rapid feed speed and has suction ports that can be switched on and off cyclically.
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