Position control for a stacker wheel

Details Position control for a stacker wheel Position control for a stacker wheel

1981-06-29

1987-01-27

Butler, Douglas C.

Sheet feeding or delivering

Delivering

Rotary conveyor

271187, B65H 2920

Patent

active

046389938

ABSTRACT:
A position controller for a stacker wheel in a media dispensing apparatus including a stacker wheel rotatably mounted in said apparatus with the stacker wheel having compartments located around the periphery thereof, with each compartment having spaced ends providing an entrance area to the associated one of the compartments. A transport mechanism is used for transporting media in spaced relationship along a path leading to a loading area with regard to the stacker wheel. A detector is used for detecting the presence of a leading edge of one of said media in the path at a predetermined point from the loading area and also for generating a first signal in response thereto. A slotted disc and detector are used for determining the rotational position of each compartment of the stacker wheel with regard to the loading area to produce a second signal indicative of that position. The position controller rotates the stacker wheel and also varies the velocity (when necessary) of the stacker wheel in response to the first and second signals so as to enable the leading edge of one of said media to be moved into a compartment by the transport mechanism without contacting the associated ends.

REFERENCES:
patent: 3512771 (1970-05-01), Dempsey et al.
patent: 3531108 (1970-09-01), Rabinow et al.
patent: 3719267 (1973-03-01), Reist et al.
patent: 4088314 (1978-05-01), Phillips
patent: 4244565 (1981-01-01), Geier
patent: 4275874 (1981-06-01), DiBlasio

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