Injection molding nozzle

Details Injection molding nozzle Injection molding nozzle

B - Operations, Transporting

29

C

B29C 45/23 (2006.01)

Patent

CA 2523684

In a hot channel injection molding nozzle comprising a nozzle body including a mass flow channel for a melt to be in-jected into a mold, wherein the nozzle body has a nozzle outlet opening at one end and an inlet opening disposed at one side of the other end of the nozzle body and a valve needle extending through the nozzle body to the outlet opening for blocking the melt flow, a valve needle guide sleeve is disposed in the noz-zle body so as to delimit the mass flow channel in the area of the inlet opening with the valve needle extending through the guide sleeve.

L'invention concerne une buse de moulage par injection de canal chaud comprenant un corps de buse doté d'une voie de débit massique pour injecter une fonte dans une moule. Le corps de buse comporte un orifice de sortie à une extrémité et un orifice d'entrée sur un côté de l'autre extrémité du corps de buse, ainsi qu'un pointeau de soupape qu'étend du corps de buse à l'orifice de sortie pour bloquer la viscosité en fondu. Un manchon de guidage du pointeau de soupape est placé dans le corps de buse pour délimiter la voie du débit massique dans la zone de l'orifice d'entrée, le pointeau de soupape s'étendant à travers le manchon de guidage.

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