Web severing apparatus and method

Details Web severing apparatus and method Web severing apparatus and method

1990-10-05

1992-04-14

Watts, Douglas D.

Cutting

With product handling means

Means to move, guide, or permit free fall or flight of product

83303, 83346, 83404, 83100, B26D 162

Patent

active

051037033

ABSTRACT:
Sheet cutting apparatus for severing a rapidly-moving web, such as printed paper, into cut sheets in two stages. In the first stage, spaced cuts are made along a transverse cutting line of the web. The web is trained between belts which support the cut portions of the web, and the uncut portions of the web are severed to separate sheets. The sheets are conveyed out of the cutting station and into further apparatus. Preferably, the belts for supporting the web during the second cutting operation are trained around the knife and anvil rolls which make the cuts. The purpose of the belts is to prevent the leading edge of the web or a cut sheet from being projected forward of its support, thus tending to become dog-eared or misfed. The cuts made at the first and second cutting stations can be arranged in various patterns to remedy mis-timing of the respective cutting stations.

REFERENCES:
patent: 1532538 (1925-04-01), Langston
patent: 2311692 (1943-02-01), Potdevin
patent: 3159069 (1964-12-01), Winkler et al.
patent: 3544454 (1970-12-01), Muth et al.
patent: 3762254 (1973-10-01), Tsymbal et al.
patent: 4151699 (1979-05-01), Focke et al.
patent: 4388794 (1983-06-01), Focke et al.
patent: 4785696 (1988-11-01), Martiny
patent: 4983155 (1991-01-01), Stobb

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