Cross-folding apparatus for printed webs, particularly to obtain

Details Cross-folding apparatus for printed webs, particularly to obtain Cross-folding apparatus for printed webs, particularly to obtain

1992-05-26

1993-11-09

Look, Edward K.

Sheet-material associating

Associating and folding

Sheet associating

270 6, 270 13, 270 19, 270 211, B42C 100, B41F 1358

Patent

active

052596044

ABSTRACT:
To cross-fold a moving web into one-third lengths, a cutter blade cylinder (1, 26) is at a cutting position with a counter cylinder (4, 28), which carries needles and may also carry cutting knives. The cutting knives are arranged to cut the web into a format of one-third/two-third length, respectively. The needles (5, 6) on the cylinder transfer the one-third cut element to a second needling cylinder (9, 32) which re-transfers the cut elements to a group of needles (6) on the first needling cylinder (4, 28) so that the one-third length portion is superimposed on the two-third length portion. These two superimposed portions are then transferred to a combination needling-folding blade cylinder (10, 33) which folds the two-third portion in half and transfers the fold to a folding jaw cylinder (14, 38) so that the one-third portion is interlaced into the two-thirds portion. The arrangement has the advantage that the punctures from the puncturing needles are at the outer margin, which can be small, and be trimmed off.

REFERENCES:
patent: 269019 (1882-12-01), Crowell
patent: 321683 (1885-07-01), Campbell
patent: 652817 (1900-07-01), Spalckhauer
patent: 1970931 (1934-08-01), Crafts
patent: 2139241 (1938-12-01), Meyer
patent: 2499570 (1950-03-01), Crafts
patent: 3242781 (1966-03-01), Risica
patent: 5165671 (1992-11-01), Motooka
"Braun, Atlas des Zeitungs-und Illustratinsdruckes"(Braun, Atlas of Newspaper and Magazine Printing), published by Polygraph Verlag GmbH, Frankfurt am Main, 1960, p. 95.

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