A lockable rotary cutting mat includes a base plate and a rotary plate. The central bottom portion of the rotary plate is assembled on the center of the base plate through a rotary connector. The rotary plate includes a cutting surface and a periphery. The periphery is formed with concave edge portions, and a locking component is provided at the corresponding position between the base plate and the rotary plate periphery. The locking component includes a moving base, a controller and a locking edge portion. The controller can be pushed along a movement guiding axis on the moving base. The locking edge portion is connected to, and can be driven by the controller to have locked and released positions. When the locking edge portion is at the locked position, it is aligned to, and is engaged with the corresponding concave edge portion, so that the rotary plate is fixed.

A packaging machine having a plurality of working stations for processing a film, at least one of the working stations being a cutting station. The working stations are disposed successively along a working direction and the film is conveyed in the working direction from a first one of the working stations to a second one of the working stations. The cutting station is configured to sever the film in a cutting direction, which is oriented transverse, preferably orthogonal, with respect to the working direction. The cutting station has a knife and counter pressure device, both being pressable against one another in a pressing direction. The disclosure is characterized in that the counter pressure device has a curved surface, which is curved around a curvature axis, and the counter pressure device is configured to roll on a cutting edge of the knife about a rolling axis with the curved surface.

Counter-die cylinder blanket of die cutting machine comprising a band (3) of soft plastic material provided with a key (4), and an insert (5) of stiffening material housed in the key (4), wherein the insert (5) additionally comprises separating ribs (11) which extend from the top face (8) and/or from a bottom face (9) to facilitate the positioning of the insert (5) in the key (4) during the forming by moulding of the band (3) inside of a mould (16), and it preferably incorporates separating ribs (11) which extend from its side faces (10).

An automatic sizing cutting device includes a conveyance unit, a measuring device, a rotary cutter arranged downstream of the conveyance unit so as to oppose a band-shaped member and having a cutting blade on an outer circumferential surface thereof, a die roller which is arranged on a side of the band-shaped member opposite to the rotary cutter and which rotates in a direction opposite to a rotation direction of the rotary cutter; and an elastic member which urges the die roller toward the rotary cutter. The rotary cutter is controlled to rotate in accordance with a conveyed length of the band-shaped member measured by the measuring device, and is controlled such that circumferential speeds of the rotary cutter and the die roller when the cutting blade of the rotary cutter cuts the band-shaped member are equal to a conveying speed of the band-shaped member.

A lockable rotary cutting mat includes a base plate and a rotary plate. The central bottom portion of the rotary plate is assembled on the center of the base plate through a rotary connector. The rotary plate includes a cutting surface and a periphery. The periphery is formed with concave edge portions, and a locking component is provided at the corresponding position between the base plate and the rotary plate periphery. The locking component includes a moving base, a controller and a locking edge portion. The controller can be pushed along a movement guiding axis on the moving base. The locking edge portion is connected to, and can be driven by the controller to have locked and released positions. When the locking edge portion is at the locked position, it is aligned to, and is engaged with the corresponding concave edge portion, so that the rotary plate is fixed.

A die cutter blanket for a counter-die of a rotary die cutting machine has a cover that surrounds the counter-die forming a cylindrical sleeve around the counter-die. The cover is made from a first material having a first hardness value. The cover has a key adapted to fit into a slot of the counter-die in order to fix the cover around the counter-die. The die cutter blanket also includes a bar made from a second material having a hardness value greater than the first hardness value, which is disposed entirely inside the key, axially along the length of the key. The bar is peripherally coated by the first material.

An automatic sizing cutting device includes a conveyance unit, a measuring device, a rotary cutter arranged downstream of the conveyance unit so as to oppose a band-shaped member and having a cutting blade on an outer circumferential surface thereof, a die roller which is arranged on a side of the band-shaped member opposite to the rotary cutter and which rotates in a direction opposite to a rotation direction of the rotary cutter; and an elastic member which urges the die roller toward the rotary cutter. The rotary cutter is controlled to rotate in accordance with a conveyed length of the band-shaped member measured by the measuring device, and is controlled such that circumferential speeds of the rotary cutter and the die roller when the cutting blade of the rotary cutter cuts the band-shaped member are equal to a conveying speed of the band-shaped member.

Counter-die cylinder blanket of die cutting machine comprising a band (3) of soft plastic material provided with a key (4), and an insert (5) of stiffening material housed in the key (4), wherein the insert (5) additionally comprises separating ribs (11) which extend from the top face (8) and/or from a bottom face (9) to facilitate the positioning of the insert (5) in the key (4) during the forming by moulding of the band (3) inside of a mould (16), and it preferably incorporates separating ribs (11) which extend from its side faces (10).

Certain embodiments disclose a rotary die cutting apparatus including a rotatable first cylinder, a rotatable second cylinder positioned in proximity to the first cylinder to compress and permit cutting and/or creasing of a corrugated article when the corrugated article passes between the first and second cylinders, a pivot arm on which the second cylinder is mounted and configured for pivotal movement to thereby move the second cylinder mounted thereon relative to the first cylinder, and a displacement actuator operatively connected to the pivot arm to control the pivotal movement of the pivot arm. Other embodiments disclose a method for controlling movement of a second cylinder relative to a first cylinder.

Die cutter blanket for counter-die of rotary die cutting machine, which has a cover (3) that wraps the counter-die (1) forming a cylindrical sleeve around said counter-die (1). The cover (3) has a key (4) insertable into a slot (5) of the counter-die (1) for the fixing thereof around the counter-die (1). Additionally, the cutter blanket (2) comprises a bar (6) inserted inside the key (3) axially along its entire length, in such a way that the dimensions of the section of the bar (5) fit the geometry of the slot (5), and the bar (6) is peripherally coated by the same material of the cover (3). The bar (6) has higher hardness than the cover (3).