Molding machine and melt channel interface

Details Molding machine and melt channel interface Molding machine and melt channel interface

2005-01-26

2009-10-20

Gupta, Yogendra (Department: 1791)

Plastic article or earthenware shaping or treating: apparatus

Female mold and charger to supply fluent stock under...

With coupling between charger and mold

C425S570000, C425S572000

Reexamination Certificate

active

07604477

ABSTRACT:
Disclosed is a mold carrier having: a first external surface and a second external surface being located opposite the first external surface, arranged to mount, in use, respective mold halves; a main hot runner channel; first and second hot runner nozzles in a back-to-back configuration, the first and second hot runner nozzles having bases and connected to the main hot runner channel to receive, in use, molten plastic therefrom, the first and second hot runner nozzles each having a substantially planar sealing surface configured to provide an interface, in use, to a substantially planar interface surface in the respective mold halves; and springs operatively mounted between the nozzle bases and nozzles to spring-load the nozzles against the mold halves for improved sealing sprue bushings being received in the mold halves; and mold locating rings being received by the first external surface and the second external surface, the mold locating rings being configured to locate and position the mold halves relative to the first and second hot runner nozzles and of the sprue bushings, and the mold locating rings aligning and locating with a selected one of the mold halves so that the first and second hot runner nozzles may touch the sprue bushings.

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