Sheet feeding or delivering – Feeding – Separator and conveyor
Patent
1982-08-12
1984-08-07
Schacher, Richard A.
Sheet feeding or delivering
Feeding
Separator and conveyor
271 98, 271102, 271105, B65H 314
Patent
active
044639422
ABSTRACT:
A machine for feeding cards one by one from a vertical stack including a platform for supporting the trailing edge of the stack and a stripper type support for the leading edge corner portion of the stack in the form of a needle having a downwardly angled tip portion extending inwardly under the corner of the stack so that the leading edge of the bottom card rests against the tip portion of the needle. A suction cup is mounted for vertical movement between an upper position in which the cup is in engagement with the bottom card of the stack adjacent the needle and a downwardly retracted position which is below the tip portion of the needle so that the leading edge of the bottom card flicks past the tip of the needle as the card is drawn downwardly. The needle is of hollow construction having a source of pressurized air and the tip of the needle has a longitudinally extending discharge orifice which faces upwardly and which extends both above and below the corner of the stack dividing the orifice into an upper portion and a lower portion. The source of air is at a sufficiently high pressure so that the air from the upper portion of the orifice is forced between the lowermost cards in the region above the suction cup thereby breaking any suction which may exist between the cards and serving as a lubricant for the bottom card facilitating its prompt release from the stack.
REFERENCES:
patent: 2849232 (1958-08-01), Halahan
patent: 3655181 (1972-04-01), Paulson
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