METHOD FOR PERFORMING AN ULTRASONIC WELDING PROCESS ON AT LEAST ONE WEB

摘要

In a device (10) which is adapted to perform an ultrasonic welding process on at least one web (8, 9) by means of an elongated welding combination (4), i.e. a combination of an elongated welding head (1) and an elongated anvil element, the welding combination (4) is movably arranged, and means (12) for realizing a displacement of the welding combination (4) are provided. The welding combination (4) may be displaceable in a direction (C) which is perpendicular to a direction (W) of conveyance of the web (8, 9) through the device (10). During the displacement process, the displacements of both the welding head (1) and the anvil element are accurately controlled, so that the mutual positioning of these components of the welding combination (4) is maintained. Due to the displaceable arrangement of the welding combination (4), there is no limit to a width of webs (8, 9) to be treated.