Draw-in device and process for feeding webs of material into a p

Details Draw-in device and process for feeding webs of material into a p Draw-in device and process for feeding webs of material into a p

1994-05-31

1996-08-06

Eickholt, Eugene H.

Printing

Rolling contact machines

Rotary

226 4, 226 28, 226 45, 226 11, 226 30, 2425545, 242563, 242417, 2424215, B41F 1354

Patent

active

055423507

ABSTRACT:
A draw-in device for feeding a plurality of printing stock webs, preferably paper webs, in which draw-in elements of finite length grasp the start of a paper web and draw it out of reel changers and draw mechanisms through printing units and up to folding units. An electronic memory is provided in which are stored the lengths of all possible feed paths in the printing machine and the draw-in elements can be switched on at different times corresponding to the different lengths of the feed paths and the resulting time differences at a given feed rate via an electronic computer connected with the memory and can be switched off simultaneously. It is also possible to refeed a web of printing stock which was torn during the print process so as to substantially reduce wasted paper.

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patent: 5088403 (1992-02-01), Shoji et al.
patent: 5117753 (1992-06-01), Mamberer
patent: 5263414 (1993-11-01), Lehrrieder et al.
patent: 5397044 (1995-03-01), Suzumi

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