Sheet feeding or delivering – Feeding – Separator and conveyor
Patent
1989-12-22
1991-07-23
Skaggs, H. Grant
Sheet feeding or delivering
Feeding
Separator and conveyor
271 34, 271110, 271111, 271117, 271127, 271146, 271151, 271153, 271171, 271270, B65H 500
Patent
active
050337297
ABSTRACT:
The present invention is directed to a mechanism for the handling of and the singulating of a stack or plurality of aligned and substantially flat materials such as for example, sheets of paper, cards, printed flyers, envelopes, checks, business cards, labels, other printed documents and the like. There is incorporated into the mechanism novel systems and assemblies which control the rate of the advance of the stack of materials, which advance is effected by an amplitude or magnitude of a unidirectional jogging motion. The magnitude is a function of the attitude of the stack or the angle formed with the horizontal of the leading sheet of the stack. There is also provided a pulsing mechanism for pulsing, synchronously with jogger belts of an input conveyor assembly for joggingly advancing the plurality of flat materials, the first singulator assembly which pulsing enhances the action of singulation of the plurality of flat material. The pulsing of the first singulator assembly results in an action which is similar to the human thumb action in the dealing of, for example, cards from a deck of cards. There is also provided a sensor assembly for sensing an inclination of the leading piece of the plurality of flat materials and using the sensed inclination angle to vary the jog amplitude thereby controlling the flow rate of the materials toward and into the first singulator. There may also be provided an out-feed conveyor assembly in material flow communication with the first singulator assembly or, if there is one, the second singulator assembly. There may also be provided spring loaded adjusting assembly for compliantly adjusting both the first singulator and the second singulator assemblies for material having various thickness dimensions; speed control for controlling the power source to vary material flow rate through the mechanism; input and output conveyor assembly angle adjusting mechanisms for adjusting the angle to the horizontal of both the input conveyor and the out-feed conveyor assemblies; and material width guide adjuster for adjusting, to an average width dimension, the input and out-feed conveyor assemblies to receive the stack of aligned and substantially flat materials having such an average width dimension.
REFERENCES:
patent: 2155895 (1939-04-01), Gibson, Jr.
patent: 4039180 (1977-08-01), Stocker
patent: 4512562 (1985-04-01), Moll
patent: 4772004 (1988-09-01), Golicz
patent: 4844435 (1989-07-01), Giannetti et al.
patent: 4909499 (1990-03-01), O'Brien et al.
Dishong George W.
Druzbick C.
Skaggs H. Grant
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