ENSEMBLE A MACHOIRES TOURNANTES POUR MACHINES D'EMPAQUETAGE, EN PARTICULIER POUR MACHINES D'EMPAQUETAGE POUR EMBALLAGE TUBULAIRE DU TYPE A EMPAQUETAGE CONTINU OU ANALOGUE

摘要

The disclosure is directed to a heat-sealing jaw assembly for use in packaging machine. The heat-sealing jaws are of the type commonly referred to as "flying" heat-sealing jaws since they have a component of motion in the same direction as the motion of a package, or other workpiece, to be sealed. The heat-sealing jaws are also of the type commonly referred to as "rotary" heat-sealing jaws since each jaw rotates about an axis. In a preferred embodiment a pair of heat-sealing jaws is provided. One of the jaws rotates on a fixed axis while the other jaw rotates about an axis which moves in an arc having a radius centered on the fixed axis of the first jaw. The movement of the second jaw through the arc is provided by a pivoted support for the jaw axis.