Method and apparatus for folding continuously fed web in two

Details Method and apparatus for folding continuously fed web in two Method and apparatus for folding continuously fed web in two

2006-12-05

2006-12-05

Tawfik, Sameh H. (Department: 3721)

Manufacturing container or tube from paper; or other manufacturi

Control means energized in response to activator stimulated...

Responsive to machine element

C493S019000, C493S023000, C493S254000

Reexamination Certificate

active

07144357

ABSTRACT:
Here is disclosed a method and apparatus for folding a continuously fed in two. The web is folded along guide means defining a folding guide line with a fold angle gradually reduced. In the course of gradually reducing the fold angle, a plurality of guide rolls through are pressed against transversely opposite side edge portions of the web. Immediately before the stage on which the web is completely folded in two, there are provided detector means adapted to detect actual positions of the respective side edge portions and swing rolls located upstream of these detector means adapted to change a crossing angle of the web with respect to a machine direction. Actuators interposed between the detector means and the swing guide rolls cause the swing guide rolls to swing and thereby to move the side edge portions toward predetermined positions.

REFERENCES:
patent: 2265075 (1941-12-01), Knuetter
patent: 3897943 (1975-08-01), Head et al.
patent: 4012268 (1977-03-01), Johnsen
patent: 4041849 (1977-08-01), Tsukasaki
patent: 4650530 (1987-03-01), Mahoney et al.
patent: 5217739 (1993-06-01), Stein et al.
patent: 6562171 (2003-05-01), Archie et al.
patent: 2002/0174930 (2002-11-01), Umebayashi et al.
patent: 1977-29339 (1977-03-01), None
patent: 2003-38566 (2003-02-01), None

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