B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 45/27 (2006.01)
Patent
CA 2068638
A b s t r a c t Main Figure: Fig. 1 A hot runner system (10) for injection molding comprises a block-shaped casing (12) with a bore (14) for facewise insertion of at least one cartridge-like unit (16) having a material flow tube (32) enclosed by a heating device (38), e.g. an electric coil, and by a thermoconductive casting (V). Opposite flow transfer openings (35, 36), there are radial supports (40) protruding over the outer diameter (D) of the cast body (30) with an engaging face that is recessed relative to the bore (14, may be plane and serves for form- fit to other components such as nozzles (11), further units (16), additional flow tubes (32), etc. Supporting elements for the cast body (30) are symmetrically arranged in either axial direction to form hollow compartments; they include thin spiders (49), ribs (50), supporting segments (51) and preferably tube-type studs (68). Axial abutting members (18, 19) provide for tight closure of the hot runner system (10).
Dipl.-Ing. Herbert Gunther Gesellschaft Mbh
Fetherstonhaugh & Co.
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