Apparatus for the production of plastic pipes

Details Apparatus for the production of plastic pipes Apparatus for the production of plastic pipes

1992-03-06

1994-09-13

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Stock pressurizing means operably associated with downstream...

Centripetal elastic melt extruder type

264508, 264515, 4253261, 425466, 425467, B29C 4722, B29C 4726

Patent

active

053463846

ABSTRACT:
An apparatus for the manufacturing of plastic pipes has an injection head and half shells of which two at a time combine as a pair to form a mold. The injection head has at least one channel issuing in a substantially ring-shaped nozzle, which is delimited by two components one of which being adjustable for modification of the width of the nozzle. A component directly delimiting the nozzle is tiltable in relation to the central longitudinal axis, whereby an adjustment of the width with great sensitivity is attained for such a ring-shaped nozzle.

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