Welding device and method for welding an outlet element to a packaging material

摘要

The invention is based on a welding device (10a; 10b) for welding an outlet element (12a; 12b), in particular a valve, to a packaging material (14a; 14b), with at least one anvil (16a; 16b), which has at least one receiving area ( 18a; 18b) for receiving the outlet element (12a; 12b) to be welded, with an in particular self-supporting holding element (20a; 20b) on which the anvil (16a; 16b) is arranged and with at least one welding die (22a; 22b) ), in particular a sonotrode, which is set up for welding the outlet element (12a; 12b) to the packaging material (14a; 14b) to interact with the anvil (16a; 16b). It is proposed that the welding device (10a; 10b ) comprises at least one support unit (24a; 24b) for supporting the anvil (16a; 16b) which comprises at least one movably mounted support element (26a; 26b) which is set up to provide a retaining ring when the welding punch (22a; 22b) is in a welding operating state aft on the anvil (16a; 16b) exercise.