B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 47/70 (2006.01) B29C 47/06 (2006.01)
Patent
CA 2339196
Proposed is a device for continuously producing seamless plastic tubes, wherein provided as a distributor element for the molten material to be fed to an annular gap is a distributor plate which is arranged within the cross-section of the mold cavity and in which the molten plastic material is passed to the peripheral surface of the distributor plate substantially radially with respect to the direction of production by way of distribution passages which branch tree-like, wherein the flow path of the molten plastic material is the same in each of the individual distribution passages between the entry opening and the peripheral surface .
L'invention concerne un dispositif pour la production en continu de tubes en matière plastique sans ligne de joint. Selon l'invention, il est prévu une plaque distributrice (13) servant d'élément distributeur pour la matière fondue à acheminer à un espace annulaire. Cette plaque distributrice est placée à l'intérieur de la section transversale de la cavité du moule. La matière plastique fondue est guidée vers la surface périphérique (24) de la plaque distributrice, essentiellement dans le sens radial par rapport à la direction de production, par l'intermédiaire de canaux de distribution (14) ramifiés de manière arborescente. Le parcours d'écoulement de la matière plastique fondue entre l'ouverture d'entrée (20) et la surface périphérique (24) est identique dans chaque canal de distribution (14).
Gowling Lafleur Henderson Llp
Unicor Gmbh Rahn Plastmaschinen
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