Sealing system for molding machine

摘要

A system for forming a container from a preform, wherein the preform has a finish and a support ring. The system includes a mold having a mold cavity defining an internal surface and adapted to accept the preform, a pressure system having an inlet and an outlet outputting fluid, a blow nozzle receiving the fluid from the pressure system and introducing the fluid at a pressure into the preform thereby expanding the preform toward the internal surface of the mold cavity and creating a resultant container. The system further includes a first seal engagement selectively engageable between the blow nozzle and the finish of the preform and a second seal engagement selectively engageable between the blow nozzle and an adjacent feature.

主权项

1. A system for forming a container from a preform, the preform having a finish and a support ring, the system comprising:
a mold having a mold cavity defining an internal surface and adapted to accept the preform; a pressure system having an inlet and an outlet, the pressure system outputting liquid; a blow nozzle receiving the liquid from the pressure system and introducing the liquid at a pressure into the preform thereby expanding the preform toward the internal surface of the mold cavity and creating a resultant container; a first seal engagement selectively engageable between the blow nozzle and the finish of the preform; and a second seal engagement selectively engageable between the blow nozzle and an adjacent feature; wherein the first seal engagement and the second seal engagement are arranged to prevent liquid seepage along the exterior of the preform prior to forming and filling the preform.