Patent ID: 9649800
Date: 2017-05-16
CPC Classifications: B29C,B29L

Claim:
1. A hot runner injection molding apparatus to manufacture molded parts comprising: a manifold having an inlet melt channel and a plurality of outlet melt channels; a plurality of injection molding cavities; and a plurality of side gating nozzles coupled to the outlet melt channels and to the injection molding cavities; wherein each side gating nozzle has wherein the sliding connector element is disposed within the nozzle flange segment and extends into the removable nozzle head segment along the first axis, wherein each nozzle head segment is configured to be removed from the nozzle flange segment while the nozzle flange segment remains supported by and coupled to the mold plate and while the nozzle head segment remains retained by the mold cavity retainer, wherein each nozzle head segment retains at least two nozzle tips that extend at least partially outside an outer surface of the nozzle head segment, each nozzle tip being surrounded by a nozzle seal element, wherein each nozzle head segment is a single piece element configured to be axially moveable as a single unit together with the retained nozzle tips, wherein each nozzle tip is configured to be attached and removed from the corresponding nozzle head segment when the nozzle head segment is external to the side gating nozzle, wherein each injection molding cavity is located in a molding cavity insert having a continuous lateral wall section defined between a continuous inner surface and a continuous outer surface to prevent in operation a leakage of a molten material during the filling of the cavity, wherein each injection molding cavity defines the full shape of the molded part in a single injection step, and wherein each nozzle head segment and the retained nozzle tips together with the corresponding molding cavity and the corresponding molding cavity insert form an assembly of hot melt and cold melt elements that are together, along with each mold cavity retainer, removable as an assembly unit.