Patent ID: 7648604
Filing Date: 2010-01-19
Classification: B29C,B29L,B65C,Y10T

Abstract:
1. Labeling machine, comprising: supporting means around which a film section is wrapped for forming a tubular label, vertical edges of said film section being overlapped over said support means in order to make a surmount, said surmount covering an angle along a curvilinear surface of said film section; an ultrasound welding device having a sonotrode, said welding device being assembled on a turret able to make said sonotrode cover an angle along a curvilinear surface of said film section greater than the angle formed by said surmount of the label to be welded, guaranteeing the welding contact also with position tolerance errors of the surmount due to transfer clearances or errors of the label, wherein said ultrasound welding device performs the welding process for a whole length of the surmount segment to be welded by performing a movement along two Cartesian axes according to a direction imposed by the surmount line.