Perforating device and converting machine comprising said device

A perforating device for perforating a web material, comprising:

• a first blade-holder adapted to rotate around a respective first rotation axis and on which at least one first perforating blade is mounted;
• a support beam, on which a plurality of counter-blades are mounted;
• said support beam being angularly adjustable around a selection rotation axis thereof in a plurality of angular working positions, wherein in each of said plurality of angular working positions one of the counter-blades is in an operative position;
• a movable abutment adapted to co-act with the support beam, wherein the support beam is integral with a plurality of abutment surfaces adapted to co-act selectively with said movable abutment;
• a first actuating device adapted to move the movable abutment between an active position, where the movable abutment co-acts with the support beam, and an idle position, where the movable abutment is spaced from the support beam;
• a second actuating device adapted to rotate the support beam in order to arrange the support beam selectively in one of said angular working positions.

A converting machine comprising

• converting members for converting a web material;
• and
• a perforating device;
• wherein the perforating device comprises
• a first blade-holder adapted to rotate around a respective first rotation axis and on which at least one first perforating blade is mounted;
• a support beam, on which a plurality of counter-blades are mounted;
• said support beam being angularly adjustable around a selection rotation axis thereof in a plurality of angular working positions, wherein in each of said plurality of angular working positions one of the counter-blades is in an operative position;
• a movable abutment adapted to co-act with the support beam;
• wherein the support beam is integral with a plurality of abutment surfaces adapted to co-act selectively with said movable abutment;
• a first actuating device adapted to move the movable abutment between an active position, where the movable abutment co-acts with the support beam, and an idle position, where the movable abutment is spaced from the support beam;
• a second actuating device adapted to rotate the support beam in order to arrange the support beam selectively in one of said angular working positions.