High speed sheet feeder singulator

Details High speed sheet feeder singulator High speed sheet feeder singulator

1988-12-19

1990-05-29

Rolla, Joseph J.

Sheet feeding or delivering

Feeding and delivering

Separator and conveyor

271 16, 271 35, 271150, 271152, 271161, 271225, 271258, 271264, 271270, B65H 522, B25B 102

Patent

active

049289446

ABSTRACT:
High speed sheet feeders receive blocks or bricks of paper sheets, cards or folders stacked edgewise on a downsloping supply ramp, and singulate these for edgewise feeding in rapid succession. The frontmost sheets ready for feeding are buckled and fanned at their upper edges, and their lower edges are arched forward to form a dimple or ridge-shaped pocket by an underlying central traction singulator. A pair of ganged or synchronized feed belts engage the frontmost sheet and propel it rapidly downward edgewise, and a slanting discharge belt receives and diverts the sheet at even higher speed between the discharge belt and a tractive pinch roller. A transfer assembly beneath the discharge belt may receive sheets from an adjacent feeder and interleave them upon command with sheets delivered by the discharge belt.

REFERENCES:
patent: 3683758 (1972-08-01), Feldkamper
patent: 3894732 (1975-07-01), Muller
patent: 3944213 (1976-04-01), Fallos
patent: 4025068 (1977-05-01), Collins
patent: 4128236 (1978-12-01), Lundblad
patent: 4177982 (1979-12-01), Bewersdorf et al.
patent: 4376530 (1983-04-01), Akai
patent: 4397455 (1983-08-01), Hickey
patent: 4500084 (1985-02-01), McInerny
patent: 4715593 (1987-12-01), Godlewski
patent: 4744555 (1988-05-01), Naramore et al.
patent: 4871162 (1989-10-01), Imai et al.

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