US 7,255,030 B2 · Method and device at running webs have been printed in a high-speed printer

Abstract

The present invention relates running webs which have been printed in a high-speed printer. A method and a device are provided for longitudinal cuffing of a running, unseparated web in two web portions, wherein the unseparated web (2) is printed in a high-speed printer (1) and wherein the unseparated web (2) is cut longitudinally in two web portions (2a, 2b). The unseparated web (2) is brought to run between a first and a second edge support (8, 9) such that longitudinal outer edges (2d, 2e), extending in the running direction (T), of the unseparated web (2) can cooperate with the edge supports (8, 9). If the width (B) of the unseparated web (2) varies and/or changes, this is read and the second edge support (9) and the cuffing means (7) are continuously controlled to move in a lateral direction (S) relative to the running direction (T) such that the unseparated web (2) is cut in two web portions (2a, 2b) with widths (B2a, B2b) which are adapted to each other.

Claims20

Dependent claims

Method for longitudinal cutting of a running, unseparated web in at least two web portions,

wherein the unseparated web (2) is printed in a high-speed printer (1), and
wherein the unseparated web (2) is cut longitudinally in at least said two web portions (2a, 2b) by means of a cutting mean (7),
characterized in
that the unseparated web (2) is brought to run between a first and a second edge support (8, 9) such that longitudinal outer edges (2d, 2e) of the unseparated web (2), extending in the running direction (T), can cooperate with said edge supports (8, 9),
that at least when the width (B) of the unseparated web (2) varies and/or changes, this variation and/or change is read, and
that the second edge support (9) and the cutting means (7) are continuously controlled to move in a lateral direction (S) relative to the running direction (T) of the unseparated web (2) and in dependence of said continuously read variations and/or changes of the width (B) of the unseparated web (2), such
that incorrect cutting of the running, unseparated web (2) is avoided if the width (B) thereof varies and/or changes.

4 more elements

Device for longitudinal cutting of a running, unseparated web in at least two web portions,

wherein the unseparated web (2) is printed in a high-speed printer (1), and
wherein at least one cutting mean (7) is provided to cut the unseparated web (2) longitudinally in at least said two web portions (2a, 2b),
characterized in
that the device comprises a first and a second edge support (8, 9) between which the unseparated web (2) is brought to run in the running direction (T) such that longitudinal outer edges (2d, 2e) of the unseparated web (2) can cooperate with said edge supports (8, 9),
that a reader device (10) is provided to continuously read if the width (B) of the unseparated web (2) varies and/or changes, and
that a control device (12) is provided to continuously control the second edge support (9) and the cutting means (7) to continuously move in lateral directions (S) relative to the running direction (T) in dependence of such variations and/or changes of the width (B) of the unseparated web (2) which have been read by the reader device (10), so that incorrect cutting of the running, unseparated web (2) is avoided if the width (B) thereof varies and/or changes.

3 more elements

Dependencies are inferred from the claim text.

Method and device at running webs have been printed in a high-speed printer

Life of this patent

Method and device at running webs have been printed in a high-speed printer

Life of this patent

Abstract

Claims20