Diestock for wiredrawing

Claim 1

A diestock for wire drawing, comprising: a die having an inlet cone receptive of a wire of a first diameter and having an outlet cone disposed to discharge the wire thinned to a second and smaller diameter by drawing it through the die; a housing which encloses and fixedly supports the die and defines a die chamber around the die in which the die and its inlet and outlet cones are exposed; means for keeping the die chamber filled with pressurized, cool lubricant liquid by feeding such liquid into the die chamber to keep the die and both the exposed inlet and outlet cones thereof immersed in such liquid; and means defining restricted, elongate wire inlet and outlet openings in the housing, opposite to and axially aligned with the inlet and outlet cone, respectively, said wire inlet and outlet openings providing the only communication, in the use of the diestock for wire drawing, between the die chamber and the space outside the housing, said wire inlet and outlet openings having sliding fit, respectively, with the wire of the first diameter and with wire thinned to the second and smaller diameter, each of said wire inlet and outlet openings being elongate to extend over a length substantially greater than the respective diameter of the wire, thereby providing a path for the pressurized liquid outwardly from the die chamber only through the narrowly restricted spaces left by said sliding fit of the wire in said inlet and outlet openings to keep the liquid under substantial back pressure in the die chamber.