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AssigneeAndritz Inc.
InventorsMichael ORNIK, Jürgen GRONOSTAY, Alois JAMMERNEGG
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The invention relates to a method for cross-cutting a material web (1), in particular a pulp web or the like, that is moved in a direction of movement (2), wherein the material web (1) is moved through between two axes of rotation oriented approximately perpendicularly to the direction of movement (2), about which axes of rotation cooperating blades (3, 4) are moved with a rotary movement, said blades (3, 4) cutting the material web (1) approximately perpendicularly to the direction of movement (2) as said material web (1) passes through between the axes of rotation. In order to achieve a high-quality cut edge with little noise pollution and high system availability, the invention provides that, after the material web (1) has been cut, a force is applied to a part of the material web (1) that is carried along with a blade (3, 4) and in particular a part of the material web (1) that bears against a blade (3, 4), in order to separate the material web (1) from the rotary movement of the blade (3, 4). Furthermore, the invention relates to a device for cross-cutting a material web (1) that is moved in a direction of movement (2), having at least two cooperating blades (3, 4), which are rotatable about axes of rotation arranged approximately perpendicularly to the direction of movement (2), wherein the material web (1) is movable through between the axes of rotation, such that the material web (1) is able to be cut by the blades (3, 4) approximately transversely to the direction of movement (2).
A method for cross-cutting a material web moved along a direction of movement, in particular a pulp web or the like, wherein the material web is moved between two rotational axes oriented roughly perpendicular to the direction of movement, wherein cooperating blades are moved around these rotational axes with a rotational movement, cutting the material web roughly perpendicular to the direction of movement as it passes through between the rotational axes, wherein, after the material web has been cut, a force is applied to a part of the material web that is carried along with a blade, in particular one that abuts against a blade, so as to detach the material web from the rotational movement of the blade, wherein the circumferential speed of the blades is less than the speed the material web along the direction of movement.
(canceled)
Dependencies are inferred from the claim text.