EXTRUSION HEAD FOR EXTRUDING CORD-REINFORCED EXTRUDATE Russian patent published in 2020 - IPC B29C48/15 B29C48/25 B29C48/285 B29C48/305 B29D30/38 

FIELD: technological processes.

SUBSTANCE: invention relates to an extrusion head for extrusion of a cord-reinforced extrudate, wherein the extrusion head comprises a spinneret and a cord guide. Extrusion head further comprises a first flow channel that extends along the first flow through the extrusion head and extends into the spinneret from the first side of the cord plane, and second flow channel, which extends along second flow through extrusion head and extends into spinneret from second side of cords plane, wherein each of the first and second flow ducts comprise a feed section and a curved section, wherein the first duct and the second duct in their respective curved sections extend at an angle within the first range from eighty-five to ninety-five degrees relative to the cord plane along at least seventy percent of the curved sections.

EFFECT: invention provides accurate positioning of upper and lower parts of draw plate, which determine thickness of sheet of elastomer material.

32 cl, 7 dwg