Wire drawing device

Metal deforming – By pulling workpiece through closed periphery die – Utilizing specified work moving means

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Details

72285, 72 24, B21C 130

Patent

active

042915651

ABSTRACT:
A programmable and self synchronizing wire drawing device includes a stationary sleeve member having a bore. A work cylinder having an end cap piston at each end is axially reciprocable in the bore. The piston diameters equal the diameter of the bore and the cylinder diameter is less than that of the bore so the wall of the bore and the outside of the work cylinder define an annular air space that is closed at its ends by the pistons. An annulus is fixed within the annular space between the pistons. A wire gripper is supported from one piston at a distance therefrom. A hydraulic piston is reciprocable within the work cylinder and it is on a tubular piston rod which extends slideably and sealingly through the end cap pistons. A wire drawing die is mounted on the end of the piston rod which is nearest the gripper. The hydraulic and air driven pistons cooperate to draw wire and feed segments of it to a consuming machine. An adjustable cam assembly, a pair of limit switches, a solenoid operated air valve, a spring-offset solenoid operated hydraulic valve and hydraulic and air pressure regulators are involved in programming the device to meet any set of operating conditions.

REFERENCES:
patent: 3260084 (1966-07-01), Mersek
patent: 3260085 (1966-07-01), Mersek
patent: 3260086 (1966-07-01), Prutton
patent: 3290916 (1966-12-01), Louis et al.
patent: 3654784 (1972-04-01), Alcock et al.

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