Method and apparatus for controlling the web tensions and...

Details Method and apparatus for controlling the web tensions and... Method and apparatus for controlling the web tensions and...

2007-04-17

2007-04-17

Chau, Minh (Department: 2854)

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C101S483000

Reexamination Certificate

active

11481378

ABSTRACT:
To control the cutting register of a web in a web-fed rotary press and to control the tension in a web section, in a manner decoupled from each another, at least one partial cutting register error is controlled at least one web tension is controlled. The press has controlled driven clamping points0to n, wherein j+q manipulated variables are used to influence j partial cutting register errors and q web tensions. Circumferential speeds and/or angular positions of clamping points are used as manipulated variables and the partial register error and the web tension in each case are located in the same or in different web sections.

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patent: 7032518 (2006-04-01), Scheffer et al.
patent: 3501389 (1986-07-01), None
German Examination Report, dated May 17, 2004.
C. Lutz et al., Übergangsverhalten des Längsregisters bei Rollen-Rotationsmaschinen, Siemans-Zeitschrift 41 (1967) Heft 5, pp. 386-390.
Brandenberg, Ein mathematisches Modell für eine durchlaufende elastische Stoffbahn in einem System angetriebener, umschlungener Walzen *) Teil, 1, Regelungstechnik und Prozeβ-Datenverarbeitung, 21 Jahrgang 1973, Heft 3 Seite 69-76.

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