Paper cutting device in a paper folding apparatus for a form pri

Manufacturing container or tube from paper; or other manufacturi – With cutting – breaking – tearing – or abrading – And with bending

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493415, 83346, 83449, B65H 4520, B26D 706

Patent

active

058003274

ABSTRACT:
A paper folding apparatus for a form printing machine includes an automatic paper cutting device having a cutting cylinder, which is disposed on an upstream side of an oscillatory shooter assembly, and which is adapted to form a cross line of cuts interposed by at least one small uncut portion in a continuous web of paper. The cutting cylinder is synchronously rotated with the paper for forming the cross line of cuts in response to a signal detected according to a predetermined length of travel of the continuous web of paper. The apparatus also includes a supporting device disposed on the oscillatory shooter assembly which supports a nozzle roller so that the nozzle roller may be moved to a first position which is displaced either toward or away from a counter roller so as to enable the continuous web of paper to slidingly travel between the two rollers, and a second position wherein the paper is intensively pressed against the counter roller so that the paper is prevented from sliding between the two rollers. The apparatus also includes an operating device which is disposed on the oscillatory shooter assembly which moves the nozzle roller supported by the supporting device from the first position to the second position when the cross line of cuts formed by the cutting cylinder arrives on the upstream side of and immediately before the nozzle roller.

REFERENCES:
patent: 4983155 (1991-01-01), Stobb
patent: 5076555 (1991-12-01), Bunch, Jr.
patent: 5104366 (1992-04-01), Bunch

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