Injection molding cooled socket holder for a heated nozzle

B - Operations – Transporting – 29 – C

Patent

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18/703

B29C 45/74 (2006.01) B29C 45/27 (2006.01)

Patent

CA 2022120

An injection molding integral cooled socket holder to be seated in a well in a cavity plate to receive an elongated heated nozzle. A central tube portion extends between a rear collar portion and a forward socket portion to form an elongated socket to receive the nozzle. The tube portion has small diameter inlet and outlet tubes received in longitudinal grooves which carry a flow of cooling water which is received at the rear collar portion to the forward socket portion. The water flows around a circular conduit in the forward socket portion to provide cooling adjacent the gate. The components of the socket holder are integrally brazed together in a vacuum furnace. Socket holders are made with various preselected lengths to match different length nozzles by cutting the central tube portion including the inlet and outlet tubes to different standard lengths.

Porte-douille de moulage par injection à refroidissement intégral se logeant dans un puits d'une plaque à cavité afin de recevoir une tête d'injection allongée chauffée. Un tube central relie un collier situé à l'arrière à une douille située à l'avant afin de former une douille allongée pouvant recevoir la tête d'injection. Le tube central comporte des tubes d'entrée et de sortie à petit diamètre qui se logent dans des rainures longitudinales transportant un jet d'eau de refroidissement qui passe du collier situé à l'arrière à la douille située à l'avant. L'eau s'écoule dans un conduit circulaire de la douille de façon à assurer un refroidissement près de l'ouverture. Les composants du porte-douille sont brasés ensemble intégralement dans un four à vide. Les porte-douilles sont construits de différentes longueurs prédéterminées, afin de s'adapter aux différentes longueurs des têtes d'injection en coupant le tube central y compris les tubes d'entrée et de sortie à différentes longueurs standard.

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