Method for regulating the tension of a web
AssigneeKoenig & Bauer Aktiengesellschaft
InventorMichael Heinz Fischer
Life of this patent
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Abstract
The tension of a web in a rotary printing press is regulated during passage of the web between at least first and second cylinders of at least one printing group. The two cylinders are driven using at least one drive mechanism. A distance between the two cylinders is varied to influence the web tension before, between and after the printing groups.
Claims12
A method for regulating a tension (S2, S3, S5, S6, S7) of a web (B), wherein the web (B) is stretched between a pair of cylinders interacting with each other via the web (B), and having a first cylinder (18) and a second cylinder (18, 23), characterized in that for regulating the tension (S2, S3, S5, S6, S7) of the web (B) a change (Delta a) of a distance (a) between the two cylinders (18, 23) takes place.
A method for regulating a tension (S2, S3, S5, S6, S7) of a web (B), wherein the web (B) is stretched between a pair of cylinders interacting with each other via the web (B), and having a first cylinder (18) and a second cylinder (18, 23), and an actual value (X-Isti) of a parameter, which defines the relationship of the tension of the web (B) ahead of and following the cylinders (18, 23) is measured and compared with a set point (X-Solli), characterized in that on the basis of a deviation (Deltai) of the measured actual value (X-Isti) from the set point (X-Solli) a change (Delta a) of a distance (a) between the cylinders (18, 23) interacting via the web (B) takes place.
Dependencies are inferred from the claim text.