Apparatus for stacking sheets
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United States of America Patent
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-
Mar 14, 1995
Grant Date -
N/A
app pub date -
Feb 10, 1994
filing date -
Feb 24, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus for stacking successive rapidly advancing sheets of a stream of sheets has a platform which receives successive sheets and descends at the rate of accumulation of one or more stacks thereon. The sheets are delivered by one or more overhead belt conveyors in cooperation with one or more lower belt conveyors. The front end turn of the lower reach of each overhead conveyor is deflected around a small-diameter rigid rod immediately in front of a stop for the leaders of successive sheets to reduce the likelihood of buckling during stacking, and one or more downwardly sloping ramps are provided in front of the stop to deflect the leaders of successive sheets in a downward direction toward the leaders of the immediately preceding sheets in immediate or close proximity of the stop. The stop, the rod and the overhead conveyor or conveyors are adjustable in several directions to facilitate a change of setup for the stacking of longer, shorter, wider or narrower sheets. At least one of the ramps has one or more openings for the front end turn or turns of the overhead conveyor or conveyors.
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