Injection molding nozzle with helical cooling conduit

Details Injection molding nozzle with helical cooling conduit Injection molding nozzle with helical cooling conduit

B - Operations, Transporting

29

C

B29C 45/74 (2006.01) B29C 45/20 (2006.01) B29C 45/27 (2006.01)

Patent

CA 2127210

An injection molding nozzle for cold runner molding thermosetting molding material in a heated mold. A bore extends centrally through the nozzle to convey liquid molding material from a cooled distribution manifold to a gate leading to a cavity. An integral cooling fluid conduit has a helical portion extending concentrically around the molding material bore. Cooling fluid circulates from a radial inlet portion to a radial outlet portion of the cooling fluid conduit to cool the liquid molding material flowing through the central bore.

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