B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 45/28 (2006.01)
Patent
CA 2373421
Disclosed is a valve gate assembly containing a nozzle body and a nozzle tip. The nozzle body has an internal channel terminating at the nozzle tip. The valve gate assembly includes a valve stem located within the internal channel and a valve stem actuator coupled to the valve stem to control a position of the valve stem relative to the nozzle tip. The valve gate assembly also inclues the valve stem actuator being configured to cause extension of the valve stem between (i) an open position, (ii) a fully closed position, and (ii) an advanced position beyond the fully closed position, the advanced position being sufficiently beyond the nozzle tip to cause the valve stem to clear away debris accumulated in front of the valve stem.
L'invention concerne une tige de soupape (26) montée sur un corps d'injecteur et pouvant se déplacer depuis une position d'ouverture, escamotée dans l'orifice d'injection (32) et permettant l'écoulement de résine dans la cavité de moulage (40), via une position de fermeture, qui bloque l'orifice d'injection (32) et empêche l'écoulement de résine dans la cavité de moulage, jusqu'à une position avancée au sein de la zone du point d'injection (42) pour favoriser l'éjection d'une pièce moulée et dégager ainsi ladite zone (42).
Catoen Bruce
Puri Rajan
Husky Injection Molding Systems Ltd.
Husky Intellectual Property Services
LandOfFree
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