Polymer flow stream redirecting and feeding device

Details Polymer flow stream redirecting and feeding device Polymer flow stream redirecting and feeding device

B - Operations, Transporting

29

C

18/682

B29C 45/17 (2006.01) B29C 49/22 (2006.01) B65D 1/28 (2006.01)

Patent

CA 1224311

ABSTRACT OF THE DISCLOSURE A device for use with a runner block and a multi- polymer coinjection nozzle having separate rear entrance ports for separate polymer streams, in a multi-coinjection nozzle, multi-polymer injection molding machine, for receiving from the runner block a plurality of separate polymer flow streams and for redirecting them to flow axially out of the forward end of the device into the nozzle rear entrance ports. The device has inlets cut radially into its periphery, each for receiving a polymer flow stream, and has feed channels, each in communication with an inlet and having an inward portion cut toward the device's central axis, and an axial portion communicating with the inward portion, running axially forward and terminating at an exit hole in the device's forward end, the exit holes being in a spaced pattern for feeding the separate polymer flow streams in spaced relation into the nozzle rear entrance ports.

451814

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