Cooling unit for bottom seams of top open bags made from tubular plastic film web has cooling elements which at least during transporting from one welding station to next station rotate with end section having welded seam

摘要

The cooling unit (10) for the bottom seams of top open bags made from a plastic film web has cooling elements (11), which at least during the transporting from one welding station for especially the bottom seam of a tube section to the next processing station which may be an opening station along a predetermined path, rotate with the end section having the welded seam. The cooling elements of the cooling unit are transportable by means of a revolving conveyor which is driven in the cycle of filling machine. An independent claim is included for a welding unit for sealing plastic bags.