CUTTING HEAD FOR CUTTING ROD-SHAPED PIECES IN MACHINES FOR MAKING SMOKERS' ARTICLES

A cutting head for cutting rod-shaped pieces in machines for the production of smokers' articles, comprises a circular blade (2) rotatable about an axis of rotation (X) and provided with a cutting portion (4) extending around its circular periphery and adapted to interfere, when the circular blade (2) is in a working position, with a transverse movement path of a rod-shaped piece of the tobacco industry in order to cut the piece into two parts, the cutting head (1) further comprising movement means for setting the circular blade in rotation about the axis of rotation, a blowing member (12), acting on at least one face of the circular blade (2) to direct a cooling air jet at the circular blade (2), and scraping means (6), located at least partly operatively downstream of the blowing member (12) and at least temporarily in contact with the cutting portion (4) during a working cycle of the circular blade (2) in order to mechanically remove any residues from the cutting portion (4).