Chimney rubber extrusion dies apparatus for prevent static electricity in tire

摘要

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an extrusion die device for extruding a tread of an antistatic tire, and more particularly to a chimney rubber extrusion die device for an antistatic tire that inserts and extrudes rubber having good conductivity. To this end, the present invention is a preformer die (3) for the cap tread and the pretread for the sub tread from the front and rear die holder (1, 2) to extrude the rubber injected through the known extruder hopper In the chimney rubber extrusion die device of the antistatic tire provided with a former die (4), chimney rubber guide die (6) formed with a chimney rubber flow guide channel (5) toward the center upper portion of the entire die holder (1) ), Wherein the chimney rubber flow guide channel (5) is connected to the rubber flow passages (3a, 3b) of the preformer dies (3,4) for the silica cap tread and the sub tread and the post die holder (2). It is made in communication with the chimney rubber flow passage (7) formed in.