METHOD OF AND APPARATUS FOR MAKING THERMOPLASTIC PLASTIC PIPES

摘要

The present invention is a machine and method for manufacturing thermoplastic tubes from hollow thermoplastic sleeves by a variety of different manufacturing processes. The machine (1) used in the method is a single apparatus having an indexing device (3) with a plurality of mandrels (9) for holding hollow thermoplastic sleeves for the purpose of transporting the same around a closed manufacturing path. The method involves advancing sleeves around the closed manufacturing path to form tubes from the sleeves.