B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 47/06 (2006.01) B29C 47/12 (2006.01)
Patent
CA 2584956
The present invention pertains to an apparatus to shape the interior surface (8) of a pipe (9) made of thermoplastic material, said apparatus comprising a shaping component (1). According to the invention, the surface (3) of this shaping component (1) has at least one notch (4) and at least one smooth continuous surface area. In particular, the shaping component (1) has at least partially a cylindrical shape and/or at least partially a conical shape. The notch or notches (4) can run spirally or closed and can either extend over the entire length of the shaping component (1) or can only be located along a specific length of the shaping component (1). The notch or notches (4) can be connected to a pressure system to produce vacuum and/or positive pressure in the notch (4). This facilitates the improved feeding and gliding of the interior surface (8) of the pipe (9) at the shaping component (1). The present invention also pertains to a system to manufacture pipes (9) made of thermoplastic material, said system comprising an above apparatus to shape the interior surface (8) of a pipe (9) made of thermoplastic material.
Haberle Adalbert
Hetzner Claus
Kellner Michael
Drossbach Gmbh & Co. Kg
Smart & Biggar
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