A self-propelled cutter has a gear assembly to provide both downward and forward force on a material to be cut. A gear assembly includes a drive input gear that engages with a transfer gear and propulsion gear engaged with the transfer gear by a lever arm. The drive gear and transfer gear are coupled and fixed to the cutter body but the propulsion gear rotates about the transfer gear via the lever arm. This gear assembly enables the propulsion gear to move as required to provide both downward and forward force on a material to be cut, such as a cast. A self-propelled cutter may have a drive input that is coupled with a drive input device, such as a crank or an electric motor. A cutter may have a first gear assembly on a first side of the cutter body and a second gear assembly on a second side.

A cutter roll and an anvil roll, with which it is possible to control deformation in the axial direction, and a rotary cutter having the same. A roll 101, 210 for a rotary cutter includes: a barrel portion having a circumferential surface and a pair of end surfaces located respectively at opposite ends of the circumferential surface; a pair of first depressions 113, 213 having a ring shape or a cylindrical shape and located respectively at the pair of end surfaces of the barrel portion, the pair of first depressions each having a depth direction that is parallel to an axis of the barrel portion; a pair of first bearings 152, 252 located respectively in the pair of first depressions and being in contact with outer walls of the first depressions; and a pair of first bearing boxes 156 located on an outside of the pair of first depressions and having support portions 151b, 251b to be in contact with a support frame or a pressure mechanism, the pair of first bearing boxes supporting the respective bearings.

A device for cutting sheet metal plates out of a sheet metal strip includes a laser cutting device moving back and forth in a transport direction of the sheet metal strip and a y-direction running perpendicular to the transport direction, a first conveyor belt having first end moving back and forth together with the laser cutting device in the transport direction, a second conveyor belt having a second end opposite the first end and moving back and forth in the transport direction. The first and second ends are moved such that a laser beam generated by the laser cutting device is directed towards a gap formed between the first and second ends and extending in the y-direction. In order to avoid adhesions to an underside of the sheet metal strip, at least one support strip and/or the dust discharge shaft is provided with a ventilation device for ventilating the gap.

An apparatus for cutting metal plates out of a metal strip includes a laser cutting apparatus that is movable back and forth in a transport direction of the metal strip, and a support device for supporting the metal strip to be cut. The support device includes a first support device having a first support strip and a second support device having a second support strip located opposite the first support strip, wherein the first and the second support strip are moved concurrently with the laser cutting apparatus such that a laser beam of the laser cutting apparatus is always oriented towards a gap formed between the first and the second support strip. A dust discharging device is arranged downstream of the support strips in a discharging direction directed away from the laser cutting apparatus. The support strip and/or the dust discharge shaft includes a ventilation device for ventilating the gap.

A cutter roll and an anvil roll, with which it is possible to control deformation in the axial direction, and a rotary cutter having the same. A roll 101, 210 for a rotary cutter includes: a barrel portion having a circumferential surface and a pair of end surfaces located respectively at opposite ends of the circumferential surface; a pair of first depressions 113, 213 having a ring shape or a cylindrical shape and located respectively at the pair of end surfaces of the barrel portion, the pair of first depressions each having a depth direction that is parallel to an axis of the barrel portion; a pair of first bearings 152, 252 located respectively in the pair of first depressions and being in contact with outer walls of the first depressions; and a pair of first bearing boxes 156 located on an outside of the pair of first depressions and having support portions 151b, 251b to be in contact with a support frame or a pressure mechanism, the pair of first bearing boxes supporting the respective bearings.

A cutter roll and an anvil roll, with which it is possible to control deformation in the axial direction, and a rotary cutter having the same. A roll 101, 210 for a rotary cutter includes: a barrel portion having a circumferential surface and a pair of end surfaces located respectively at opposite ends of the circumferential surface; a pair of first depressions 113, 213 having a ring shape or a cylindrical shape and located respectively at the pair of end surfaces of the barrel portion, the pair of first depressions each having a depth direction that is parallel to an axis of the barrel portion; a pair of first bearings 152, 252 located respectively in the pair of first depressions and being in contact with outer walls of the first depressions; and a pair of first bearing boxes 156 located on an outside of the pair of first depressions and having support portions 151b, 251b to be in contact with a support frame or a pressure mechanism, the pair of first bearing boxes supporting the respective bearings.

The invention relates to machines for the separative machining of plate-shaped workpieces using a machining tool. The machines include two workpiece support surfaces for supporting the workpiece, between which a gap is formed, and at least one carriage that is movable in or along the gap, and is connected to at least one covering element. The covering element at least partially covers the gap and includes a chain with a plurality of chain links. The chain links can have a brush support on an upper side and are designed to pivot with respect to one another, wherein at least two mutually adjacent chain links have a pivot-limiting angle () with respect to the longitudinal axis of each of the chain links such that, with a rectilinear orientation to one another and without exposure to force, the chain links assume a non-planar profile.

A device for cutting sheet metal plates out of a sheet metal strip includes a laser cutting device moving back and forth in a transport direction of the sheet metal strip and a y-direction running perpendicular to the transport direction, a first conveyor belt having first end moving back and forth together with the laser cutting device in the transport direction, a second conveyor belt having a second end opposite the first end and moving back and forth in the transport direction. The first and second ends are moved such that a laser beam generated by the laser cutting device is directed towards a gap formed between the first and second ends and extending in the y-direction. In order to avoid adhesions to an underside of the sheet metal strip, at least one support strip and/or the dust discharge shaft is provided with a ventilation device for ventilating the gap.

An apparatus for cutting metal plates out of a metal strip includes a laser cutting apparatus that is movable back and forth in a transport direction of the metal strip, and a support device for supporting the metal strip to be cut. The support device includes a first support device having a first support strip and a second support device having a second support strip located opposite the first support strip, wherein the first and the second support strip are moved concurrently with the laser cutting apparatus such that a laser beam of the laser cutting apparatus is always oriented towards a gap formed between the first and the second support strip. A dust discharging device is arranged downstream of the support strips in a discharging direction directed away from the laser cutting apparatus. The support strip and/or the dust discharge shaft includes a ventilation device for ventilating the gap.

The invention relates to machines for the separative machining of plate-shaped workpieces using a machining tool. The machines include two workpiece support surfaces for supporting the workpiece, between which a gap is formed, and at least one carriage that is movable in or along the gap, and is connected to at least one covering element. The covering element at least partially covers the gap and includes a chain with a plurality of chain links. The chain links can have a brush support on an upper side and are designed to pivot with respect to one another, wherein at least two mutually adjacent chain links have a pivot-limiting angle () with respect to the longitudinal axis of each of the chain links such that, with a rectilinear orientation to one another and without exposure to force, the chain links assume a non-planar profile.