Apparatus for manufacturing reinforced hoses

Details Apparatus for manufacturing reinforced hoses Apparatus for manufacturing reinforced hoses

B - Operations, Transporting

29

D

18/757

B29D 23/00 (2006.01) B29C 47/02 (2006.01) B29C 53/56 (2006.01)

Patent

CA 1189267

ABSTRACT OF THE DISCLOSURE In an apparatus for manufacturing reinforced hoses, a reinforced layer forming device is concentric with the material efflux port of an outer tube extruder and an inner tube extruder so that the inner tube formation, the reinforcing layer formation and the outer tube extruding can be performed continuously and substantially simultaneously on a torpedo extending beyond the out- let end of an inner die of the inner tube extruder. In order to obtain the reinforcing layer of uniform stable spiral structure, a spiral device as a reinforcing layer forming device has an inner spinner and an outer spinner, each having a frusto-conical shape, and free end portions of the inner and outer spinners are provided with a plurality of thread holes and disposed in a gap between the intermediate die and the inner die, and the inner and outer spinners are adpated to be rotated integrally with inner and outer bobbin carriers respectively.

407445

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