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US 5,535,612 AGranted
Method and apparatus for drawing wire through a plurality of standard dies at the die positions
AssigneeThe Goodyear Tire & Rubber Company
InventorSameer S. Vijayakar
Life of this patent
Estimating the term…
Abstract
A method and device for drawing steel wire (12) through draft of multiple dies (32, 14") at several or all die positions (16'-24', 16"-24") of a wire drawing machine (30,40) to provide an increased reduction in cross area per die position (16'-24', 16"-24") without the excessive heat build up and die wear previously associated therewith. Also, a novel die (32) is disclosed with lubrication grooves (34) across the face (36) of the die casing (31) to permit liquid lubricant to reach the die/wire interface.
Claims19
A method of drawing wire, comprising the steps of:
- drawing wire through a plurality of die positions arranged in a wire drawing device, two or more of said die positions each containing a plurality of dies which are arranged so that said wire is pulled first through an upstream die and then pulled substantially immediately and unrestricted through one or more downstream dies at said two or more of said die positions;
- and
- reducing the cross section of said wire by a constant reduction of between about 15% to about 18% at each of said plurality of dies and about 30% to about 36% at each of said two or more of said die positions containing said plurality of dies.
A device for drawing wire, comprising:
- a wire drawing device having a plurality of die positions;
- and
- two or more of said die positions each having an upstream die and one or more downstream dies which are arranged so that said wire is pulled first through said upstream die and then pulled substantially immediately and unrestricted through said one or more downstream dies at said two or more of said die positions;
- reducing the cross section of said wire at each of said upstream and downstream dies by a constant reduction of about 15% to about 18% whereby said cross section of said wire is reduced by a constant reduction of about 30% to about 36% at each of said die positions containing said upstream die and said one or more downstream dies.
1 more element
Dependencies are inferred from the claim text.