Injection moulding nozzle

Details Injection moulding nozzle Injection moulding nozzle

B - Operations, Transporting

29

C

B29C 45/28 (2006.01) B29C 45/27 (2006.01) B29C 45/30 (2006.01)

Patent

CA 2270377

A nozzle for injection moulding plastics contains a base body (1), a nozzle head (2) and a heat conducting torpedo (3) which are directly or indirectly heated by a heating (8). The heat conducting torpedo is clamped between the base body (1) and the nozzle head (2). An adapter (20) is secured to the heat conducting torpedo (3). The heat conducting torpedo (3) is arranged in such a way that molten plastics are guided towards outlets (21.1, 21.2) spaced apart from a nozzle axis (15). The molten plastics are for example radially ejected from the nozzle into moulding cavities (23.1, 23.2) of an injection moulding tool (17). This nozzle avoids feeding and drilling losses, is easy to produce and at the same time ensures a good heat transfer through the heat conducting torpedo (3).

Cette filière de moulage par injection de matières plastiques contient un corps de base (1), une tête (2) et une torpille thermoconductrice (3) chauffés directement ou indirectement par un chauffage (8). La torpille thermoconductrice est serrée entre le corps de base (1) et la tête (2) de la filière. Un adaptateur (20) est assujetti à la torpille thermoconductrice (3). La torpille thermoconductrice (3) est montée de sorte que les matières plastiques fondues soient guidées vers des orifices de sortie (21.1, 21.2) écartés d'un axe (15) de la filière. Les matières plastiques fondues sont par exemple éjectées radialement de la filière dans des cavités de moulage (23.1, 23.2) d'un outil (17) de moulage par injection. Cette filière permet d'éviter des pertes d'alimentation et de carottage, est facile à produire et assure en même temps un bon transfert de chaleur par la torpille thermoconductrice (3).

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