Device and method for guiding a transversely stable material web
AssigneeErhardt & Leimer GmbH
InventorsThomas Ernst, Harald Löffler, Johannes Kaczmarek
Life of this patent
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Abstract
A device and method for guiding a transversely stable material web. The device contains at least one roller and one counter roller disposed on opposite sides of the material web. The roller and counter roller can be swiveled synchronously with each other, thereby holding the material web between each other with a clamping grip. This device provides a substantially higher guiding force in relation to the running direction of the web than devices with stationary abutments.
Claims13
A device for guiding a transversely stable material web (2) comprising:
- a plurality of axially aligned rollers (3) for pressing against the top of material web (2), wherein said plurality of axially aligned rollers (3) are pivotally mounted and rotate independently from each other and are transversely displaced with respect to a direction of motion (7) of the material web (2);
- and
- a plurality of counter rollers (4) disposed on the opposite side of the material web from said plurality of axially aligned rollers (3) forming an abutment (13), wherein said counter rollers (4) are pivotally mounted and are displaced crosswise with respect to the direction of motion (7) of the material web (2);
- wherein said axially aligned rollers (3) and said counter rollers (4) form a clamping grip at the center of the material web (2) and wherein at least two of said axially aligned rollers (3) and said counter rollers (4) are in frictional contact with a common shaft (14), said common shaft (14) being driven by a rotational drive (25).
A method of guiding a transversely stable material web (2) comprising:
- placing a plurality of axially aligned rollers against the center of the material web, said axially aligned rollers being rotated independently from each other and are displaced and swiveled crosswise with respect to a direction of motion (7) of the material web;
- and
- placing a plurality of counter rollers (4) forming an abutment (13) for supporting the material web, said counter rollers being on the opposite side of the material web from said axially aligned rollers (3) forming a clamping grip therebetween on the center of the material web and said counter rollers rotating independently of each other, wherein said counter rollers (4) are synchronously displaced and swiveled with said axially aligned rollers (3) and wherein at least two of said axially aligned rollers (3) and said counter rollers (4) are in frictional contact with a common shaft (14), said common shaft (14) being driven by a rotational drive (25).
Dependencies are inferred from the claim text.