The cutting machine for cutting logs of web material, includes a cutting head arranged along the feeding path of the logs. The cutting head includes a coupling for a disc-shaped cutting blade and is designed to impart the disc-shaped cutting blade a rotary motion around the axis thereof and a cyclic movement to cut the logs into single rolls, and to allow the logs to move forward along the feeding path. The machine also includes a store unit for disc-shaped cutting blades associated with the cutting head. A handling member is provided to remove a worn disc-shaped cutting blade from the cutting head and replace the worn disc-shaped cutting blade with a new disc-shaped cutting blade taken from the store unit.

The machine includes a feeding path for the logs to be cut and a cutting head arranged along the feeding path. The cutting head includes a coupling for a disc-shaped cutting blade and is designed to impart the disc-shaped cutting blade a rotary motion around the axis thereof and a cyclic movement to cut the logs into single rolls, and to allow the logs to move forward along the feeding path. The machine also includes at least a grinding unit, including at least one grinding wheel mounted onto a rotation shaft and co-acting with a side of the disc-shaped cutting blade to grind the cutting edge of the same disc-shaped cutting blade. A controlled approach system is also provided to move the grinding wheel towards the disc-shaped cutting blade.

The machine includes a feeding path for the logs to be cut and a cutting head arranged along the feeding path. The cutting head includes a coupling for a disc-shaped cutting blade and is designed to impart the disc-shaped cutting blade a rotary motion around the axis thereof and a cyclic movement to cut the logs into single rolls, and to allow the logs to move forward along the feeding path. The machine also includes at least a grinding unit, including at least one grinding wheel mounted onto a rotation shaft and co-acting with a side of the disc-shaped cutting blade to grind the cutting edge of the same disc-shaped cutting blade. A controlled approach system is also provided to move the grinding wheel towards the disc-shaped cutting blade.

A cutting apparatus for cutting blank profiles comprises a first cutting device located at a first position in the apparatus, a second cutting device located at a second position, the second position being separated from the first position along a first axis of the apparatus, and a third cutting device located at a third position, the third position being separated from the first position along a second axis and along a third axis of the apparatus. A chariot moves along the third axis while a support adapted to hold a blank profile is mounted to the chariot and moves along the first and second axes of the apparatus. A greater number of cutting devices may be used. Cutting devices may be arranged in rows along the third axis.

A cutting apparatus for cutting blank profiles comprises a first cutting device located at a first position in the apparatus, a second cutting device located at a second position, the second position being separated from the first position along a first axis of the apparatus, and a third cutting device located at a third position, the third position being separated from the first position along a second axis and along a third axis of the apparatus. A chariot moves along the third axis while a support adapted to hold a blank profile is mounted to the chariot and moves along the first and second axes of the apparatus. A greater number of cutting devices may be used. Cutting devices may be arranged in rows along the third axis.

A cutting apparatus for cutting blank profiles comprises a first cutting device located at a first position in the apparatus, a second cutting device located at a second position, the second position being separated from the first position along a first axis of the apparatus, and a third cutting device located at a third position, the third position being separated from the first position along a second axis and along a third axis of the apparatus. A chariot moves along the third axis while a support adapted to hold a blank profile is mounted to the chariot and moves along the first and second axes of the apparatus. A greater number of cutting devices may be used. Cutting devices may be arranged in rows along the third axis.

A cutting apparatus for cutting blank profiles comprises a first cutting device located at a first position in the apparatus, a second cutting device located at a second position, the second position being separated from the first position along a first axis of the apparatus, and a third cutting device located at a third position, the third position being separated from the first position along a second axis and along a third axis of the apparatus. A chariot moves along the third axis while a support adapted to hold a blank profile is mounted to the chariot and moves along the first and second axes of the apparatus. A greater number of cutting devices may be used. Cutting devices may be arranged in rows along the third axis.

Cutting tools for pipe cutting frames are disclosed. Example split frame pipe cutting tools include a frame and a slide tool configured to position a cutting edge in contact with the workpiece, the slide tool comprising: a radial advancement mechanism configured to provide radial advancement of the cutting edge based on circumferential advancement of the slide tool by the frame; and an axial guide rail; a recirculating bearing carriage configured to slide in an axial direction along the axial guide rail and to couple the cutting edge to the axial guide rail; an axial advancement mechanism configured to advance the cutting edge in the axial direction with respect to the workpiece by translating radial advancement by the radial advancement mechanism to axial advancement based on a cutting template coupled to the radial advancement mechanism.

Machine for cutting cardboard tubes, including a cutting unit (CU) with a carriage (7) on which is mounted a blade (6) and a support element (4, 5, 8) for supporting a cardboard tube (1) intended to be transversely cut by the blade (6). The support element (4,5,8) allows the tube (1) to slide along a predetermined direction (A) parallel to its axis longitudinal (x) and to rotate about the same axis, and the carriage (7) is adapted to move bidirectionally the blade (6) parallel to the longitudinal axis (x) of the tube (1). The support element (4,5,8) has, where the cutting unit (CU) is arranged, apart (5) movable from and towards the blade (6) to maintain the tube (1) spaced from the latter and, respectively, for approaching the tube to the same blade (6) during a cutting phase.

Machine for cutting cardboard tubes, including a cutting unit (CU) with a carriage (7) on which is mounted a blade (6) and a support element (4, 5, 8) for supporting a cardboard tube (1) intended to be transversely cut by the blade (6). The support element (4,5,8) allows the tube (1) to slide along a predetermined direction (A) parallel to its axis longitudinal (x) and to rotate about the same axis, and the carriage (7) is adapted to move bidirectionally the blade (6) parallel to the longitudinal axis (x) of the tube (1). The support element (4,5,8) has, where the cutting unit (CU) is arranged, apart (5) movable from and towards the blade (6) to maintain the tube (1) spaced from the latter and, respectively, for approaching the tube to the same blade (6) during a cutting phase.