Method and apparatus for stacking folded products, especially ne

Details Method and apparatus for stacking folded products, especially ne Method and apparatus for stacking folded products, especially ne

1990-05-04

1993-03-23

Huppert, Michael S.

Sheet-material associating

Associating or disassociating

Signature associating

4147883, B65H 3910

Patent

active

051957310

ABSTRACT:
To form a stack of essentially uniform height of folded products, typically newspapers, in which each one of the folded products (1, 2) may include a plurality of sheet elements, such as newspaper sections, the folded products being formed, for example, with a longitudinal fold (3, 4) and a cross fold (5, 6). The products (1, 2) are spread apart by suitable spreaders (26, 27; 46, 47; 64, 65) to hold the sheet portions spread-apart in open V-shaped configuration; holders (24, 25; 46, 47; 48, 48'), having at least two parts, hold sequentially first and second alternate folded products, one of the folded products being rotated 180.degree. with respect to the other, for example by a rotary apparatus (32; 31; 42; 59), the then rotated products being interdigited with the non-rotated products upon being moved towards each other, for example being laterally fed towards each other by a gripper robot, by approaching conveying chain guides, or by being moved vertically against each other, to form a double-comb-like interdigited assembly of the first and second products which, when stacked vertically, will provide a stack of circumferentially essentially uniform height.

REFERENCES:
patent: 3206189 (1965-09-01), Heywood
patent: 4015724 (1977-04-01), Spencer
patent: 4530694 (1985-07-01), Kobler et al.
patent: 4605213 (1986-09-01), Hechler
patent: 4807865 (1989-02-01), Kobler et al.
patent: 4840365 (1989-06-01), Kobler et al.
patent: 4871159 (1989-10-01), Petersen
patent: 5110116 (1992-05-01), Kobler et al.

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