Device for longitudinally cutting a continuously conveyed width of material in order to form a strip with a variable longitudinal profile

A device (5, 5′) for cutting at least one strip (11) from a sheet of paper (10) as the sheet of paper (10) is unrolled from a roll of paper, the cutting device (5, 5′) comprising:

• first and second cutting tools (60, 60′), the first cutting tool (60, 60′) and the second cutting tool (60, 60′), during operation, longitudinally cutting the at least one strip (11) from the sheet of paper (10) as the paper (10) is conveyed in a longitudinal direction past the first cutting tool (60, 60′) and the second cutting tool (60, 60′);
• at least one counter-piece (70, 70′) is supported for communicating with the first cutting tool (60, 60′) and the second cutting tool (60, 60′) to provide a force in opposition to a cutting force, which is applied by the first cutting tool (60, 60′) and the second cutting tool (60, 60′), to longitudinally cut the at least one strip (11) from the sheet of paper (10);
• at least one frame (50) supporting the first cutting tool (60, 60′) and the second cutting tool (60, 60′);
• a translational drive mechanism (90) communicating with the first cutting tool (60, 60′) and the second cutting tool (60, 60′) for moving the first cutting tool (60, 60′) and the second cutting tool (60, 60′) along a translational axis (B), which extends normal to the longitudinal direction the conveyed sheet of paper (10), such that a distance between the first cutting tool (60, 60′) and the second cutting tool (60, 60′) is adjustable;
• a first rotational drive mechanism (80) communicating with the first cutting tool (60, 60′) to rotate the first cutting tool (60, 60′) about a first rotational axis (A) along which the cutting force of the first cutting tool (60, 60′) is applied;
• a second rotational drive mechanism (80) communicates with the second cutting tool (60, 60′) for rotating the second cutting tool (60, 60′) about a second rotational axis (A) along which the cutting force of the second cutting tool (60, 60′) is applied;
• and
• at least one central processing unit communicating with the translational drive mechanism (90), and the first rotational drive mechanism (80) and the second rotational drive mechanism (80) controlling translational and rotational movement of the first cutting tool (60, 60′) and the second cutting tool (60, 60′) such that a longitudinal width of the at least one strip (11) is variable as the strip paper (10) is conveyed past the first cutting tool (60, 60′) and the second cutting tool (60, 60′).