Heisssiegelvorrichtung zum umhüllen von gegenständen

Abstract

A heat-sealing apparatus (10) of a flow wrapper machine includes multiple ring gears (14) driven about a central axis by servo motors (28).The apparatus further has quickly-removable heat-sealing assemblies (20), each mounted on the periphery of a ring gear (14) for rotation therewith while drive spindles (24) guide the rotation of said ring gears (14). Selective operation of the drive motors (28) positions the respective heat-sealing assemblies (20) at predetermined intervals to heat-seal a web for packaging articles. In other words, it is possible to adjust the spacing between heat-sealing assemblies (20), and thus form bags of different lengths. Preferably, independent temperature control of the heat-sealing assemblies (20) is provided.