Abstract: The invention relates to a rotary cutting device comprising a rotatable cutting tool and a rotatable anvil roller incorporating a cutting support, wherein a cutting edge, which co-operates with the cutting support, is arranged on the cutting tool for cutting a web of material, and wherein at least one support ring with a support surface is mounted on the cutting tool for supporting the cutting tool relative to the anvil roller.

Abstract: A rotary cutting device is provided comprising a rotatably mounted cutting roller and an anvil roller. At least one support ring is provided for supporting the cuffing roller on the anvil roller. A lifting device is provided for moving the cutting roller and the anvil roller apart.

Abstract: In order to provide a cutting device, comprising a machine frame, an anvil roller which is mounted for rotation on the machine frame and a cutting tool which is mounted for rotation on the machine frame, wherein the cutting tool has a cutting edge cooperating with anvil surfaces of the anvil roller, with which the springing away on account of lateral cutting forces is minimized it is provided for the cutting tool to be biased essentially parallel to its axis of rotation.

Abstract: In order to provide a rotary cutting device comprising a rotatably mounted cutting roller and an anvil roller wherein at least one support ring is provided for supporting the cutting roller on the anvil roller such that the device has increased freedom from malfunction, it is proposed that a lifting device be provided for the purposes of moving the cutting roller and the anvil roller apart.

Abstract: A cutting machine includes an anvil roller rotatable on a machine frame about an axis of rotation. The anvil roller has an anvil surface. A cutting tool is mounted on the machine frame for rotation about an axis of rotation, with a cutter interacting with the anvil surface and with supporting rings which are held on the cutting tool and support it relative to the anvil roller with their supporting ring surfaces and/or vice versa. The quality of the cutting effect can be maintained even when the cutter becomes worn, by enabling the diameter of the supporting ring surface of each supporting ring to be adjustable by radial expansion and contraction.

Abstract: In order to provide a cutting device, comprising a machine frame, an anvil roller which is mounted for rotation on the machine frame and a cutting tool which is mounted for rotation on the machine frame, wherein the cutting tool has a cutting edge cooperating with anvil surfaces of the anvil roller, with which the springing away on account of lateral cutting forces is minimized it is provided for the cutting tool to be biased essentially parallel to its axis of rotation.

Abstract: The invention relates to a rotary cutting device comprising a rotatable cutting tool and a rotatable anvil roller incorporating a cutting support, wherein a cutting edge, which co-operates with the cutting support, is arranged on the cutting tool for cutting a web of material, and wherein at least one support ring with a support surface is mounted on the cutting tool for supporting the cutting tool relative to the anvil roller.

Abstract: In order to so improve a cutting machine comprising a machine frame, an anvil roller rotatable on the machine frame about an axis of rotation and having an anvil surface, a cutting tool mounted on the machine frame for rotation about an axis of rotation, with a cutter interacting with the anvil surface and with supporting rings which are held on the cutting tool and support it relative to the anvil roller with their supporting ring surfaces and/or vice versa, that the quality of the cutting effect can be maintained even when the cutter becomes worn, it is proposed that the diameter of the supporting ring surface of each supporting ring be adjustable by radial stretching of the supporting ring within the range below an elastic expansion limit of its material by means of an expansion device.

Abstract: To improve a cutting device comprising a machine frame, a rotatably mounted anvil drum with an anvil surface, a rotatably mounted cutting tool with a cutter cooperating with the anvil surface in such a way that in successive rotary positions, respectively successive cutter sections stand in an operative position with successive anvil surface sections in order to cut a material passing through between the cutting tool and the anvil drum, such that the cutting tool has as long a service life as possible, it is proposed that the cutting tool and the anvil drum be pretensioned, that the cutting tool be supported by at least one supporting ring via successive supporting ring sections on successive supporting surface sections of the anvil drum, that the respectively operative supporting ring section act on the respectively operative supporting surface section with a bearing force corresponding approximately to the difference between pretensioning force and cutting force, and that the supporting ring be of such cons