Device for joining strips of thermoplastic material involves strip ends partially overlapped for penetration by heated punches

摘要

The device for joining strips of thermoplastic material involves the strips ends (1,2) partially overlapped for penetration by heated punches. The punches (5) are heated to a temperature sufficient to produce fusion through the holes which they form. The device comprises a head (4) which carries the punches and a heating device (6).