INRICHTING VOOR HET ULTRASOON LASSEN VAN TEN MINSTE TWEE KUNSTSTOFFEN FOLIELAGEN.

摘要

The invention relates to a device for ultrasonic welding of at least two plastic foil layers (7,9) for manufacturing for example a package. The device comprises at least one sonotrode (3) and at least one anvil (5) positioned opposite each other and each being provided with a pressure surface. The pressure surfaces can be moved away from each other and towards each other from a position of rest to a welding position and vice versa, the pressure surfaces in the welding position forming a welding section (L') as well as a flow-out section (U'). The pressure surfaces in the flow-out section have at least two pressure surface areas extending substantially parallel to each other for supporting the foil layers (7,9).