Machine for cutting paper logs

A machine for cutting paper logs, comprising:

• a platform receiving a plurality of logs;
• a cutting device structure having an annular blade, said cutting device structure being in a stationary position, said annular blade comprising a first cutting edge and a second cutting edge, said first cutting edge being opposite said second cutting edge, said first cutting edge comprising a plurality of first bevels, said second cutting edge comprising a plurality of second bevels, said cutting device structure being fixed relative to said platform;
• a sharpening device, said sharpening device engaging said first cutting edge and said second cutting edge such that said sharpening device sharpens each said bevel of said annular band blade;
• a moving means for moving said platform in a first direction parallel to said cutting device structure and a second direction parallel to said cutting device structure such said cutting device engages one log at a time as said platform moves in said first direction parallel to said cutting device and said cutting device engages one log at a time as said platform moves in said second direction parallel to said cutting device, said first direction being opposite said second direction, wherein said platform moves relative to said annular blade and said cutting device structure, said platform including a superstructure with two transverse bars between which there is an opening capable of accommodating the blade as the platform is moved in said first and second directions to cut one log at a time, and said superstructure further including a plurality of pairs of pressers connected to corresponding vertical-axis actuators, said pairs of pressers being in a number corresponding to that of the logs, with a pair of pressers for each log, each pair of pressers comprising two elements positioned on opposite sides with respect to said opening such that one of said elements is located on a side opposite another element with respect to the action plane of the blade, one of said elements being positioned upstream of said action plane of said blade and another of said elements being located downstream of the action plane of said blade, each pair of pressers being provided for each of the logs in correspondence to the cutting station.

A machine for cutting paper logs, comprising:

• a platform for receiving a plurality of the paper logs, said platform defining a log receiving plane, wherein said platform comprises a plurality of longitudinal log receiving channels arranged adjacent to each other, each of said plurality of longitudinal log receiving channels receiving at least one of the paper logs;
• a plurality of pushers connected to said platform;
• a cutting device in a fixed position, each of said pushers being mounted for movement for moving at least one log in a direction of said cutting device, said cutting device being fixed relative to said platform, said cutting device comprising an annular band blade, said annular band blade comprising a first band blade edge and a second band blade edge, said first band blade edge being opposite said second band blade edge, said first band blade edge comprising a plurality of first beveled teeth, said second band blade edge defining a plurality of second beveled teeth, said blade having a portion defining a corresponding cutting plane;
• a sharpening device, said sharpening device continuously acting on each of said plurality of first beveled teeth and each of said plurality of second beveled teeth;
• a moving means for moving said platform in a first direction parallel to said log receiving channel plane, relative to said cutting device, from a first position to a second position and for moving said platform from said second position to said first position, relative to said cutting device, in a second direction parallel to said log receiving channel plane, wherein said first direction is opposite said second direction, wherein said blade cuts each of the paper logs, wherein said cutting device is in said fixed position as said platform moves in said first direction and said second direction, said platform including a superstructure with two transverse bars between which there is an opening capable of accommodating the blade as the platform is moved in said first and second directions to cut one log at a time, and said superstructure further including a plurality of pairs of pressers connected to corresponding vertical-axis actuators, said pairs of pressers being in a number corresponding to that of the logs, with a pair of pressers for each log, each pair of pressers comprising two elements positioned on opposite sides with respect to said opening such that one of said elements is located on a side opposite another element with respect to the action plane of the blade, one of said elements being positioned upstream of said action plane of said blade and another of said elements being located downstream of the action plane of said blade, each pair of pressers being provided for each of the logs in correspondence to the cutting station.