Longitudinal weld forming device for tubes has heat sealer and seal tape in between which longitudinal weld is clamped to heat weld on opposing sides

摘要

A form shoulder (5) wraps a sheet (4) around a format pipe (6) to form a tube (3). A seal tape (15) wound around two rollers (27,28) is heated while one of the rollers is driven by a drive (30). A longitudinal weld (2) is clamped between a heat sealer (14) and the seal tape to heat the weld on opposing sides.