Arrangement for separating paper sheet pads from a stack

Details Arrangement for separating paper sheet pads from a stack Arrangement for separating paper sheet pads from a stack

1987-08-17

1990-03-13

Spar, Robert J.

Material or article handling

Apparatus for moving intersupporting articles into, within,...

Positions intersupporting article into row

221238, 4147961, 4147974, B65G 5906

Patent

active

049079425

ABSTRACT:
A method and an arrangement of the present invention are intended for individualizing non-glued paper pads having cardboard backs from a stack which includes a plurality of cut paper layers and intermediate cardboard sheet layers. One end of the stack which is covered by a respective cardboard end sheet is positioned against a support in such a manner that a part of the stack projects freely beyond an edge of the support. A bending force which is directed at an inclination with respect to the stack end and has a component that points toward the edge of the support is applied against an engagement location disposed at a cut surface of the projecting part of the stack to bend the portion of the stack that is situated between the engagement location and the end sheet with attendant formation of a wedge-shaped gap between this portion and the remainder of the stack. A number of the bent-away paper layers and intermediate cardboard layers if flipped under the influence of their elastic restoration forces back to the remainder of the stack by moving the engagement location to which the bending force is applied in the direction of the one end of the stack to such an extent that ultimately the penulitimate one of the paper layers and the last one of the intermediate cardboard sheets is flipped back and only the last one of the paper layers and the cardboard end sheet associated therewith are still bent away.

REFERENCES:
patent: 2594241 (1952-04-01), Williamson
patent: 3690476 (1972-09-01), Stacey
patent: 4252483 (1981-02-01), Pfaffle
patent: 4456242 (1984-06-01), Morin
patent: 4648772 (1987-03-01), Hartlage

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