Method for expanding one end of a pipe made from plastic or composite material using a bulging die device for clips or a machine for making sockets on the ends of pipes made from plastic or composite material, and bulging die device for implementation thereof

摘要

The method involves automatically driving an end (2), axial pivoting, along a turning portion, during phase, where the end is passed from a spaced apart position to a tightened position. Angular displacement of the end is chosen based on number of jaws (20) so that the jaws do not occupy a position after pivoting the jaw. A conical needle (3) is movable in axial translation. An independent claim is also included for a device for expanding an end of a plastic material or composite material tube in a plumber field comprising a conical needle.