Folding apparatus with improved web transport

Details Folding apparatus with improved web transport Folding apparatus with improved web transport

1990-01-18

1991-04-02

Schmidt, Frederick R.

Manufacturing container or tube from paper; or other manufacturi

With cutting, breaking, tearing, or abrading

And with bending

493360, 493418, 493424, 493460, B31F 100, B31F 700

Patent

active

050044516

ABSTRACT:
A folder comprising a knife cylinder adapted to be driven at a rate independent of the speed of the web being supplied, a mating cylinder adapted to cooperate with said knife cylinder in cutting a web into sections at a cutting nip and which is provided with grippers for the leading edges of the sections, and a belt conveyor belt trained around a part of the circumference of said mating cylinder following said nip. It is possible to ensure more accurate production and greater reliability if the folder is so designed that it includes at least one of the cylinders delimiting said cutting nip and having suction or blowing ports placed following the cutting means, such ports being adapted for causing a flow of air towards the cylinder having said grippers.

REFERENCES:
patent: 1974149 (1934-09-01), Christman
patent: 3010260 (1961-11-01), Subklew
patent: 3274871 (1966-09-01), Ehlscheid
patent: 3363896 (1968-01-01), McKindary
patent: 3506255 (1970-04-01), Jahn et al.
patent: 4537588 (1985-08-01), Ehlscheid et al.
patent: 4842574 (1989-06-01), Noble

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