Knock-off device for breaking off of an edge strip of a material web, a process for breaking off of an edge strip of the material web and the use of the knock-off device and of the method

摘要

The present invention relates to a knock-off device (1) for breaking off of an edge strip (2) of a running, flat material web (3), in particular of tissue, paper, paperboard, cardboard, film or a textile material with an edge strip surface comprising an edge strip length in the longitudinal direction (md) and an edge strip width (b) in the transverse direction (cd), an edge strip - outer edge (4), which in the transverse direction (cd) a side edge of the web of material (3) terminates in the direction toward the outside, and an edge strip - inner edge (5), which in the direction of the center of the web of material (3) is arranged, comprising at least a knock-off operation element (6) and at least one deflection device (7) for deflecting the at least a knock-off operation element (6), wherein said at least a knock-off operation element (6) on the at least one deflection device (7) is arranged, wherein the at least a knock-off operation element (6), a mechanical knock-off operation element (6), and the at least a knock-off operation element (6) is arranged in such a way that upon knockover of the at least a knock-off operation element (6) in the edge strip surface and the edge strip (2) of the web of material (3) is severed.