Abstract: A punch assembly is provided for a rotary forms press, for punching holes in a sheet of paper or other material as the material travels between punch and die assemblies. The punch assembly is of the split ring type, and has a hub to be carried on a punch shaft and driven thereby. A split punch ring of multiple segments is provided, for mounting on the hub, with the segments being connected together. The punches are carried by the punch ring. There is a slip fit between the punch ring and the hub to allow movement between the punch ring and hub to accommodate minor repositioning of the punch ring and its punches as the punches enter holes of dies with which they will engage, with the slip fit allowing either rotary repositioning or axial repositioning. Clearance is provided to an enable a limited amount of axial repositioning.

Abstract: A knife shaft assembly is disclosed for use in a rotary die cutter. The knife shaft assembly includes a rotatable die shaft having an outer circumference and having a defined width. At least two die cutting inserts are mounted on the outer circumference of the die shaft. Each of the inserts has a first surface and a knife formed about the periphery of the first surface. The knife shaft assembly also includes a compressible material positioned between the die cutting inserts which prevent the buildup of material waste there between.

Abstract: In a rotary press cutter for the production of envelope blanks, a flexible foil cutting die (8) is used. The leading edge of the foil cutting die (8) is anchored against a leading face (20) of the rotary punching roller (10), and the trailing portion of the foil cutting die (8) extends without creasing over a rounded outer portion of the blade anchorage slot, to be held against the outer periphery of the punching roller (10) by magnetic attraction from inset magnet means (15). The leading edge of the foil cutting die is preformed to provide a location and anchorage flange (24) which is bent without creasing to an obtuse angle to the remainder of the foil, with a radiussed junction between the flange (24) and the remainder of the foil. A unique structure of the magnet means (15) provides very strong adhesion of the body of the foil cutting die (8) to the punching roller (10).

Abstract: A cutting die for cutting materials is provided. A die sheet having opposing front and back die sheet surfaces is provided. At least one cutting edge defining a die pattern is formed extending outwardly from a portion of the front sheet surface. A spacer abutment extending outwardly from a portion of the back surface of the die sheet is also provided. The spacer abutment is disposed in alignment with the cutting edge. A pressure surface is provided for applying the die sheet to the materials. An abutment surface of the spacer is abutted directly against the carrier surface in order to dispose the cutting edge a predetermined distance from the pressure surface. Cavities formed between adjacent abutments may be filled with an adhesive material in order to secure the cutting die to the pressure surface. The cutting die may be flexible and may be adhesively secured to a cylindrical die carrier.

Abstract: Disclosed is a zipper for a reclosable thermoplastic bag having opposing rib and groove profiles wherein at least one of the opposing zipper profiles has an longitudinally extending part interlockable and substantially free of interdigitation with the opposing profile and wherein the part is structurally discontinuous along its length. When the rib and groove profiles are interlocked, an audible clicking sound and/or a vibratory or bumpy feel perceptible to the touch is imparted.Further disclosed is a process and apparatus for making the zipper wherein a zipper profile is extruded and indentions are formed within and along it.

Abstract: A slicing guide marker for marking impressionable food products with an elongated cantilever arm rotatably attached to a support shaft. The cantilever arm having a marking roller adjacent one end and a counterweight slidably carried by the arm. The marking roller having a wheel with a plurality of teeth extending generally radially outwardly of the wheel for marking the food product.

Abstract: A method and system for forming an artwork on a sheet material and punching holes therethrough while the sheet material is disposed on a working surface so that the holes are punched in precise registration with the artwork. The method comprises the steps of providing for each hole to be punched a corresponding socket in the working surface, and securing the sheet material on the working surface so as completely to overlap all of the sockets whereupon the artwork is formed on the sheet material in precise registration with a predetermined origin of the working surface. Associated with each of the sockets is a punch and block combination disposed on opposite surfaces of the sheet material, the block being formed of a softer material than the punch and having an operating surface larger than a cutting surface of the punch.

Abstract: The invention relates to a knife roller with at least one film knife which s securable on a multi-part roller body, which comprises suction openings around its circumference, and connected thereto, suction channels extending in the lengthwise direction. The gist of the invention is that:a) suction openings are provided along several suction hole rows arranged next to one another in the circumferential direction,b) one suction channel is arranged to correspond with each suction hole row, andc) at least one suction air control channel and at least one adjustable suction air control disk are provided,d) by means of which the suction air control channel is selectively connectable with different suction channels, suction hole rows, and their suction openings.

Abstract: A bearing-block body member in which a die-cutting roll is journaled includes an adjusting cap seated in it through which a bore extends axially of the roll. An axial chamber is provided in the roll, and a stationary air manifold extends into the chamber, permitting relative rotation between the roll and the manifold. An air tube having an axial portion and a transverse portion has its axial portion extending through the bore in the adjusting cap to couple with the manifold so as to hold it in rotational position but permit axial withdrawal. Fluid communication is provided between the air tube and the manifold, and corresponding ports in the manifold and apertures in the die register periodically to permit air to flow from the air tube through the manifold, the ports, and the apertures to the outer surface of the roll. As a result of this arrangement, air can be supplied transversely of the axis of the roll, but ready removal of the roll and the manifold is afforded.

Abstract: For fastening a cutting die on a base plate, the device of the invention comprises clamps insertable in recesses provided in the die, the lower part of the die being received in a slot in the base plate. The clamps are composed of bridge elements, and the recesses in the die are keyhole-shaped and open downwards.

Abstract: An apparatus for perforating sheet material during travel of the latter in a given plane. The apparatus includes rotary punches which penetrate through the sheet material during travel thereof. The punches turn around an axis extending transversely with respect to the direction of travel of the sheet material so that each punch approaches the plane of the sheet material to initially contact the latter and then penetrate through and be retracted from the sheet material. Each punch has a concave punching end surface forming part of a cylinder whose axis is perpendicular to the punch axis and parallel to the axis around which each punch turns while approaching the plane of the sheet material. Thus, each punch has at its punching end leading and trailing tips which lead and trail considered in the direction of rotation of each punch.

Abstract: A cutting rule for use in a rotary die cutter is made up of a plurality of segments. Each segment has a notched marginal side edge whereby it interlocks with an adjacent segment.

Abstract: This is a rotary sheet material cutter and creaser, particularly intended for cutting and creasing cartons out of rolls of sheet cardboard. It includes a rotary cutting and creasing die geared together with a rotary anvil and particularly provided as an attachment for or end part of a carton-printing printing press, which printing press is conventional, and which may be multi-color.The cutter and creaser of this device is synchronized with the printing press by having its gearing geared to the printing press gearing in a conventional manner, and may be provided in gangs for operation on a wide roll of material, thus providing a multiplicity of cut-out cartons simultaneously. The sheet material is fed through the conventional printing press in a conventional manner from a roll, then through this device to cut out and crease the folds of the carton blank.

Abstract: The rotary panel cutter includes a cutter die that has a continuous upstanding knife blade. The cutter die has a body portion that is secured to a rotatable cutter shaft having a longitudinal axis. The cutter die knife blade has side edge portions that are perpendicular to the longitudinal axis of the cutter shaft and leading and trailing edge portions that are not parallel to the longitudinal axis of the cutter shaft. For cutting rectangular openings in a web the continuous upstanding knife blade has the configuration of a regular parallelogram wherein the length of side edges is the same and the length of the leading and trailing edges is also the same. The rotatable cutter shaft is mounted in a machine frame with its longitudinal axis at an angle other than 90.degree. with the center line of the web. The angle that the rotatable cutter shaft deviates from 90.degree. is preferably the same angle as the angle of deviation of the knife leading and trailing edges from the longitudinal axis of the cutter shaft.

Abstract: A cutting and/or creasing die includes a sheet which is to be bent around and attached to a roller of a rotary machine for producing blanks from a strip of material, particularly for producing creased blanks for boxes from cardboard or similar material. The method of the invention includes forming the sheet with a plurality of tongues bent out of the general plane of the sheet to the side thereof which will face away from the roller when in operation, and laterally of the lines which indicate the desired positions of a plurality of cutting and/or creasing blades. The blades have lateral projections and, after they have been positioned along the lines, the tongues are bent into forced contact with the lateral projections of the blades, thus attaching the latter to the sheet. The blades may be bonded to the sheet prior to the bending of the tongues. Finally, the sheet with the blades attached thereto is mounted on the roller.