An anvil for a rotary cutting unit includes a shaft having an outside surface and at least one cladded layer applied to at least one portion of the outside surface of the shaft. A method of producing the anvil includes the steps of applying a wear resistant powder material to at least one portion of the outer surface and heating the wear resistant powder material with, for example a laser, to melt the powder and to fuse it into at least one layer on the shaft.

The disclosure concerns a rotary cutting apparatus having a frame and a die roll defining a first longitudinal axis and having a cutting member. The die roll is rotatably connected with the frame and configured to rotate about the first longitudinal axis. The rotary cutting apparatus further has a bearer ring connected with the die roll and an anvil roll defining a second longitudinal axis and having an outer radial surface. The anvil roll is rotatably connected with the frame and is configured to rotate about the second longitudinal axis. The bearer ring of the die roll is in contact with the outer radial surface. The anvil roll may be supported by at least one cam follower. The anvil roll may be axially removable from the frame via lateral translation along the second longitudinal axis.

A device for cutting material includes a carriage comprising a connecting leaf, a blade, and an anvil. The blade is coupled to the connecting leaf, rotatable about a blade axis, and includes a cutting edge. The anvil is coupled to the connecting leaf, rotatable about an anvil axis, and includes an outer rim that is adapted to engage the cutting edge. The blade and the anvil are configured to rotate and cut material received between the cutting edge and outer rim, thereby introducing a cut line that forms substantially along a cut axis. A leading edge of the connecting leaf follows the cut line as it is formed and passes through the cut.

In various embodiments, a method of making a cutting mat backing includes creating a roving by wrapping a fiber material around a rotary cylinder under tension to form a plurality of layers. Each of the plurality of layers is angled with respect to a central axis of the rotary cylinder and the roving has a normalized axial flexural rigidity of from 2 lbf.in.sup.2 to 30 lbf.in.sup.2 over a beam width of 1 inch and a ratio of normalized circumferential flexural rigidity to normalized axial flexural rigidity of from 1:1 to 30:1. The method further includes infusing the roving with a polymer resin and curing the resin via electromagnetic radiation to form the cutting mat backing. Cutting mats including the cutting mat backing are also described.

Perforating equipment (111) for high speed transversal perforations of variable lengths on a continuous form (32) in movement is disclosed. The perforations are carried out by means of a perforating blade (39a) against a projecting profile (41a) of a blade contrast (39a) and blade and contrast servomechanisms (43, 128) for rotating a support for the blade and the blade contrast. The projecting profile (41a) has sectors with axial extensions different in dependence on their angular positions. The contrast servomechanism (128) is settable for selecting an angular phase of the blade contrast (39a), such to positioning, for the contrast with the blade, a sector of the projecting profile (41a) having axial extension equal to the requested length of the perforation (P). The blade contrast can be constituted by a hollow cylinder (113) rotatable around a support shaft (114) as a radial air bearing of pneumostatic type.

A method for perforating a web with a perforating apparatus includes: rotating a cylinder about a longitudinal cylinder axis, wherein the cylinder comprises at least one shaped blade; operatively engaging a moveable support with the cylinder; positioning an anvil disposed on the support so as to cooperate in contacting relationship with the shaped blade, wherein at least one of the blade and the anvil comprise a plurality of teeth, and wherein adjacent teeth are separated by a recessed portion; feeding a web between the cylinder and the support; and perforating the web as the anvil cooperates in contacting relationship with the shaped blade disposed on the rotating cylinder.

The present disclosure relates to adjusting and maintaining a position of a cutting surface used to create lines of weakness for rolled products.

Described herein are examples of a perforating device for perforating a textile material, such as carpet or textile underlayment. In an example, the perforating device includes a multi-blade assembly rotationally driven by a motor. The blade assembly can be coupled to a rotary shaft such that the blades rotate with the shaft. The blades can include alternating teeth and gaps on their outer edges to create a plurality of parallel perforated cuts. Spacers can be positioned between the blades to separate them a predetermined distance. An anvil can be positioned below and adjacent the blade edges such that the teeth of the blades touch or nearly touch the anvil surface. The perforating cuts produce a textile that can be customized in terms of its size and shape at an installation site by hand, and without the need for any specialized tools or equipment.

Described herein are examples of a perforating device for perforating a textile material, such as carpet or textile underlayment. In an example, the perforating device includes a multi-blade assembly rotationally driven by a motor. The blade assembly can be coupled to a rotary shaft such that the blades rotate with the shaft. The blades can include alternating teeth and gaps on their outer edges to create a plurality of parallel perforated cuts. Spacers can be positioned between the blades to separate them a predetermined distance. An anvil can be positioned below and adjacent the blade edges such that the teeth of the blades touch or nearly touch the anvil surface. The perforating cuts produce a textile that can be customized in terms of its size and shape at an installation site by hand, and without the need for any specialized tools or equipment.

A roll of sanitary tissue product comprising a shaped line of weakness, where the roll of sanitary tissue product may exhibit a Full Sheet Average Trapezoidal Tear Strength of between about 8 g and about 20 g, as measured by the Full Sheet Average Trapezoidal Tear Force Method, and wherein the sanitary tissue product may exhibit a Geometric Mean Peak Elongation of greater than about 15%, as measured according to the Dry Tensile Strength Test Method.