Injection molding system having clamped rotatable nozzles...

Details Injection molding system having clamped rotatable nozzles... Injection molding system having clamped rotatable nozzles...

B - Operations, Transporting

29

C

18/703

B29C 45/22 (2006.01) B29C 45/27 (2006.01) B29C 45/28 (2006.01)

Patent

CA 1266358

ABSTRACT OF THE DISCLOSURE This invention relates to a valve gated injection molding system in which a number of melt conveying nozzles leading to a common cavity are releasably clamped to the side surface of an elongated manifold. A cylindrical collar around the inlet to each nozzle is received in a recessed seat around each outlet from the manifold. This structure facilitates assembly and ensures alignment of the inlets and outlets, while permitting for some rotational movement between the nozzles and the manifold due to thermal expansion. The integral nozzles are made by vacuum casting a heating element and vacuum brazing a side member with a sidewards projecting face into a steel main body.

549516

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