Tuckers on mechanical folding rolls

Details Tuckers on mechanical folding rolls Tuckers on mechanical folding rolls

1979-06-15

1981-06-02

Burr, Edgar S.

Manufacturing container or tube from paper; or other manufacturi

Bending

Folding

B65H 4516

Patent

active

042707447

ABSTRACT:
A method and means is provided for folding material such as paper hand toweling in either a single "V-fold" or multiple "Z-fold" configuration. In either case, the paper is forced by a tucker into a vise which consists of one stationary jaw and one movable jaw operated by a cam on opening and a spring mechanism on closing. The movable vise is leading through the roll nip. The tucker blade may be split into individual segments, the width of one towel rather than the full width of the machine. Further, leaf springs such as two leaf springs per segment rather than extension springs on each end of the blade are adapted to be used. The advantage of using such individual segments and leaf springs is that the problems or difficulties of machining one long blade without warpage, is overcome, and in addition, the replacement of one small segment in case of damage can be more easily replaced, and each segment can compensate for variation in paper thickness across the machine whereas with one blade the thickest material controlled the entire blade.

REFERENCES:
patent: 1595992 (1926-08-01), Connard
patent: 1886312 (1932-11-01), Stanton
patent: 3163413 (1964-12-01), Franke
patent: 3214162 (1965-10-01), Breidenbach

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