Needle valve nozzle

Details Needle valve nozzle Needle valve nozzle

B - Operations, Transporting

29

C

B29C 45/28 (2006.01)

Patent

CA 2647049

A feature of a needle valve nozzle positioned in a hot-runner injection mould and actuated by means of an actuator, where the direction of actuation of the shut-off needle and that of the flow channel in the hot-runner nozzle differ from one another, is that, in the closed position, the shut-off needle (13), as distinct from the actuation device (12), is held in position, in the closed position, exclusively by the cooler mould plate (2) at at least two locations at a distance from one another (Fig. 3).

L'invention concerne une buse de fermeture à aiguille actionnée au moyen d'un entraînement par force dans un outil de moulage par injection à canal chauffant, la direction d'actionnement de l'aiguille de fermeture et celle du canal d'écoulement de la buse à canal chauffant étant différentes l'une de l'autre. L'invention est caractérisée en ce que l'aiguille de fermeture (13), indépendamment du dispositif d'actionnement (12), est maintenue en place dans la position de fermeture exclusivement par la plaque de façonnage plus froide (2) au niveau d'au moins deux points espacés l'un de l'autre (figure 3).

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