An apparatus and method for adjusting a mandrel and a kernel...

B - Operations – Transporting – 29 – C

Patent

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Details

B29C 47/22 (2006.01) B29C 47/12 (2006.01) B29C 47/34 (2006.01) B29C 53/30 (2006.01) B29D 23/00 (2006.01)

Patent

CA 2231623

The present invention relates to an apparatus for producing pipes of a mouldable material, preferably plastic, comprising an extruder, a cylindrical mould comprising chill moulds (4, 5), a mandrel (8) inside the extruder and a kernel (9) as an extension of the mandrel. The mandrel is attached at its front end to the extruder. The mandrel (8) and the kernel (9) can be kept concentric with the extruder and the mould if the mandrel and the kernel are joined to each other in such a manner that the angle between their centre lines is adjustable.

L'invention concerne un appareil de production de tuyaux en matière moulable, de préférence en plastique, qui comporte une extrudeuse, un moule cylindrique à coquilles métalliques (4, 5), un mandrin (8) situé à l'intérieur de l'extrudeuse et un noyau (9) prolongeant le mandrin. Le mandrin est fixé par son extrémité avant à l'extrudeuse. Le mandrin (8) et le noyau (9) peuvent être maintenus concentriques par rapport à l'extrudeuse et le moule si le mandrin et le noyau sont assemblés de sorte que l'angle entre leurs lignes centrales soit ajustable.

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