Abstract: A cutting and/or creasing rule is produced on a 3D printing machine which may be mounted on a board for use is a die for cutting and/or creasing a sheet of paperboard or other material into a blank for a carton. With the advent of additive manufacturing, i.e. 3D printing, it is now possible to eliminate traditional slotted die boards with generally rectangular steel cutting and creasing rules and replace same with surface printed boards with three-dimensional creasing and cutting rules.

Abstract: A flexible curvilinear knife is disclosed. The flexible curvilinear knife is formed from a cutting element, a blade holder element, and a plurality of spring elements. A first, proximal end of each spring element of the plurality of spring elements is operably and fixably attached to a discrete location of the cutting element and a second, distal end of each spring element of the plurality of spring elements is fixably attached to a discrete location of the blade holder element.

Abstract: A cutting- and creasing -wheel assembly includes a cutting tool, such as a circular disc having a continuous or a serrated cutting edge. The disc is rotatable and supported between a pair of rotatable creasing- wheel halves, the creasing-wheel halves being of equal radial dimension. The disc is controllable for movement between a non-operative position wherein the cutting edge is withdrawn radially inside the outer peripheries of the creasing-wheel halves, and an operative position wherein the cutting edge is projecting radially outside the peripheries. The method of slitting a corrugated or otherwise compressible material involves the provision and control of a cutting tool, preferably a circular disc having a continuous or serrated cutting edge. The disc is arranged to be rotatable and movably supported between a pair of rotatable creasing-wheel halves of equal radial dimension in a cutting- and creasing wheel assembly.

Abstract: A sheet finisher for performing preselected processing with a sheet or a sheet stack conveyed thereto of the present invention includes a cutter unit configured to cut the sheet or the sheet stack in a direction perpendicular to a direction of sheet conveyance. A guide member is positioned upstream of the cutter unit in the direction of sheet conveyance for guiding the sheet or the sheet stack being conveyed. A moving device moves the guide member in a direction parallel to the direction of sheet conveyance.

Abstract: An apparatus is described for forming a web (N) that is permeable to liquids and designed to separate two environments and to allow the liquid to flow in one direction from one of said environments to the other, in which said web is caused to pass between two contra-rotating cylinders (5, 7) that are pressed against each other, one of said cylinders (7) having a surface provided with projections which cause perforations in said web (N). The cylinder (7) with the projections is turned at a peripheral speed greater than the peripheral speed of the other cylinder (5), with a consequent relative slipping action between the surfaces of the two cylinders (5, 7).

Abstract: A device for making cuts in the direction of the advance of pieces of thin material, for example in slips of paper along the path on which they are fed, includes a cutter carrying drum (1) and a cutting bed drum (2) rotating in opposite directions to each other. The drum (1) carries at least one peripheral cutter (3, 3', 3") whose cutting edge (103) is orientated in the direction of advance of the pieces of material and is curved coaxially with the drum (1), projecting radially beyond it. The cutter (3, 3', 3") is fixed on the cutter carrying drum (1) by a removable (5, 7) base (4, 4', 4") which has an intrinsic elasticity provided by slits such that it provides a certain spring support of the cutter (3, 3', 3") alternatively and in combination in the radial direction and in the direction of oscillation about an axis transverse to the cutting edge (103) of the cutter (3, 3', 3"), in particular substantially parallel to the axis of the drum (1).

Abstract: This invention relates to a paper interfolding machine of the type having first and second folding rolls mounted adjacent each other for rotation about parallel axes with porous tissue paper carried by each roll. A wedge-shaped protrusion on a first folding roll and a mating recess on a second folding roll is provided. A resilient member filling at least a portion of the mating recess forms an elastic anvil which is deformed by the protrusion received in the recess to crease a sheet of paper received in the nip between the rolls. Vacuum ports on the second folding roll are used to selectively adhere the sheet to the second roll during creasing.

Abstract: There is provided an apparatus for applying constant pressure to a plurality of anvil rollers for crush-scoring used in combination with crush-scoring cylinders having protrusions extending from the surface thereof. Each anvil roller is supported in a substantially frictionless manner and the constant pressure is supplied by a flexible diaphragm acting on a plunger which can move substantially without friction in a pneumatic cylinder.

Abstract: This invention is concerned with a cutting head for a cigarette filter attachment machine, for cutting a filter attachment web at regular intervals in cooperation with a cutting drum, comprising a rotary member which carries one or more knives, an arrangement for urging the rotary member towards the cutting drum with a predetermined force, and a damping member arranged to resist movement of the rotary member towards the cutting drum, at least along part of the range of such movement. Each end of the rotary member is preferably supported by a separately movable carrier member, each carrier member having its own urging arrangement and its own damping member. The or each damping member may comprise a dashpot or a rubber pad or sleeve.

Abstract: A creasing rule is provided for a cutting die for processing corrugated board. The creasing rule has an elongate, smooth, unbroken web having an outer side and an under side with the outer side having rounded, longitudinally-extending shoulders and a central, longitudinally-extending ridge extending outwardly therefrom at a central portion thereof. A pair of flanges extend outwardly from edges of the web and extend in opposite directions when mounted on a die plate of the cutting die. The under side of the web of the creasing rule has a shallow, longitudinally-extending groove therein which is preferably centrally or symmetrically located with respect to the ridge on the opposite side. The flanges of the creasing rule are affixed to the die plate, usually by staples driven through the flanges.