Some examples include a die-cutting unit that includes a device for changing a die-cutting cylinder. The die-cutting unit includes at least one die-cutting cylinder and at least one anvil cylinder. The die-cutting cylinder is arrangeable and/or arranged in a die-cutting position for die-cutting. The die-cutting cylinder is exchangeable for at least one further die-cutting cylinder by means of a device for changing the die-cutting cylinder. The device for changing the die-cutting cylinder includes a locking mechanism for fixing the die-cutting cylinder in the die-cutting position and/or for releasing the die-cutting cylinder from the die-cutting position. The locking mechanism acts so as to point away from a shaping point.

A device for processing substrates improves processing quality during separation or punching of such substrates. The device has a first processing cylinder and a second processing cylinder for treating substrates, and between which the substrate can be inserted. The substrate undergoes processing as it passes through the cylinder nip between the processing cylinders by use of tool parts that are active therein, and which may be chosen from a group composed of cutting tools, punching tools, creasing tools, perforating tools and grooving tools. The first processing cylinder has a sheet holding system and one of the first processing cylinder and the second processing cylinder has a tool carrier for receiving a tool part. An impression cylinder, which is in surface contact with the second processing cylinder, is assigned to the second processing cylinder, on the side thereof that faces away from the first processing cylinder.

The disclosure is related to a rotary cutting apparatus (10) comprising a frame (12); a first rotary device (14 or 16) comprising a first shaft concentrically arranged about a first rotational axis (A or B) and a first drum (37 or 38); a second rotary device (14 or 16) comprising a second shaft concentrically arranged about a second rotational axis (A or B) and a second drum (37 or 38); said first and second rotational axes being substantially horizontal and substantially in the same plane, wherein, a monitoring unit (28) is at least partially embedded in at least one of the drums of the first and second rotary devices, the monitoring unit being configured for measuring at least one working parameter and for transmitting data representative of the at least one working parameter between the monitoring unit and an interface transmission unit poisitioned outside either the first or second rotary device or both.

The present invention relates to a device for treating substrates which device is modular and versatile in use. The device for treating substrates comprises a feeder and one or more first sub-structure modules which each comprise a pressure cylinder with devices for fixing a lift and a sheet-conveying device and one or more second sub-structure modules which respectively have a transport cylinder with openings formed on the cover surface thereof, and having devices for fixing a lift and a sheet conveying device. All of the first or second sub-structure modules have the same intersection point for connecting the sub-structure modules on one of the inlet and the exit side and they all can be equipped with an attachment module.

A device for processing substrates uses a separation system. Processed substrates can be separated into one or more waste parts and at least one blank. Improved flexibility for treating substrates is provided. The separation system comprises a transport cylinder and a stripping cylinder associated therewith. The transport cylinder has first openings and has a detachably secured packing having depressions in which perforations are formed, with at least one perforation covering at least one first opening. The stripping cylinder has a detachably secured packing having raised areas that correspond to the depressions.

A device for treating substrates has a separation system, with which processed substrates can be separated into one or more waste parts and at least one blank. The device for treating substrates offers improved flexibility. The separation system comprises a transport cylinder and a stripping cylinder associated therewith. The transport cylinder is able to secure replaceable packing, along with first and second openings which, when the packing is secured, are covered at least partially by perforations that may be formed in the packing. A first air supply supplies air to the first openings and a second air supply supplies air to the second openings independently of the supply of the air to the first openings. The first and the second air supply are switchable between a suction air supply and a blower air supply.

A cutting apparatus for cutting a web within a frame includes a die cutter assembly including a cutting blade projecting from a cylindrical surface and a counter anvil including first and second ends journaled into the frame. The counter anvil is positioned below the die cutter assembly for receiving the web fed therebetween across a width of the frame. The cutting apparatus includes first and second outboard bearing assemblies positioned on the die cutter near the first and second opposing ends, respectively, and one or more inboard bearing assemblies positioned about the die cutter assembly and spaced inwardly from the outboard bearing assemblies. Each outboard bearing assembly is configured to control a spacing between the die cutter assembly and the counter anvil along the width of the frame. The cutting apparatus also includes one or more actuators positioned atop the frame in connection with the one or more inboard bearing.

A rotary cutting apparatus includes a frame movable in a first direction and a second direction that is opposite the first direction. The apparatus includes a cutting roll. The cutting roll is rotatably connected with the frame and configured to rotate about a first longitudinal axis. The apparatus includes an anvil roll. The anvil roll is rotatably connected with the frame and is configured to rotate about a second longitudinal axis. The first longitudinal axis is substantially parallel with the second longitudinal axis. The apparatus includes a first stationary member adapted to prevent movement of the frame in the first direction. The apparatus also includes a second stationary member connected with the frame. The second stationary member has a first configuration that prevents movement of the frame in the second direction. The second stationary member has a second configuration that allows movement of the frame in the second direction.

An apparatus for producing an easy-to-tear plastic film comprising a pattern roll rotatably supported by a pair of stationary frames, an anvil roll moving along a pair of movable frames, a first driving unit for rotating the movable frames, and second driving units each mounted to the movable frame to move the anvil roll up and down; high-hardness, fine particles projecting from a rolling surface of the pattern roll having such average height and maximum height as enabling the formation of unpenetrating fine pores in a plastic film; with the anvil roll inclined to the pattern roll in a horizontal plane by the operation of the first driving unit, large numbers of unpenetrating fine pores being formed transversely uniformly in the plastic film passing through a gap of both rolls.

A method for providing a nonlinear line of weakness on a web material includes: providing a counter component comprising a nonlinear shape, where the nonlinear shape has a shape width, W; providing a blade in operative relationship with the counter component and comprising a plurality of teeth; rotating at least one of the blade and the counter component into interacting relationship with the other of the blade and the counter component; feeding a web between the counter component and the blade such that while in interacting relationship the blade cooperates with the counter component to perforate the web, wherein the web is moving in a machine direction; and reciprocally shifting one of the counter component and the blade for a distance, D, in a shifting direction, wherein D is at least the translational distance that one tooth travels to cover the shape width, W.