Uniform speed pinless folding machine

Details Uniform speed pinless folding machine Uniform speed pinless folding machine

1989-01-05

1990-09-18

Look, Edward K.

Sheet-material associating

Associating and folding

Sheet associating

270 211, 270 50, 493356, B42C 104

Patent

active

049572806

ABSTRACT:
The known pinless folding machine in the prior art is improved in that the speed-up conveyor belts therein is removed, the drive at an increased speed of the folding drum, the clamping drum and the conveyor belts is abolished, but instead, drive at the same speed as the web is effected for these three members. More particulary, there are provided a first cutter drum and a first cutter receiver drum, a second cutter receiver drum, a head end push-in drum, and drum-round conveyor belts wrapped around the folding drum and traveling at the same speed as the web. Cutting of the web is effected twice between the first cutter drum and the receiver drum therefor and between the second cutter receiver drum and a second cutter device disposed on the folding drum, and the web is perfectly cut by the second cutter device. Accordingly, perfect cutting of the web is effected on the folding drum. The head end of the cut web is pushed into the gap between the claws and the claw seats contained in the folding drum and disposed as aligned in a row directed in the axial direction of the folding drum by means of the push-in blades on the head end push-in drum. Constraint for the web upon push-in of its head end, is effected by the conveyor belts.

REFERENCES:
patent: 4094499 (1978-06-01), Thomas
patent: 4279410 (1981-07-01), Bolza-Schunemann
patent: 4295644 (1981-10-01), van der Meulen
patent: 4445881 (1984-05-01), Bullen et al.
patent: 4491310 (1985-01-01), Reffert
patent: 4564183 (1986-01-01), Muller
patent: 4564470 (1986-01-01), Schmitt

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