Device for producing polygonal tubes comprises a frame, an assembly wall having a rotating wound core with a polygonal cross-section and a drive, and molding rollers arranged outside

摘要

Device for producing polygonal tubes comprises a frame (2) and an assembly wall (10) having a rotating wound core (7) with a polygonal cross-section and a drive (6). Foil strips are wound on the core and have folding preforms on both edges. At least one molding roller (42) is also provided which is arranged outside of the core in the axial direction of the tube to be produced. Preferred Features: The device has a first molding roller (41) arranged on the outer side of the tube and a second molding roller (42) arranged on the inner side of the tube. The casing surfaces of the molding rollers lie opposite each other.