Combined steel wire straightening method and apparatus thereof

Abstract

A combined steel wire straightening apparatus comprises a drawing die box, a horizontal straightener, a conjoined straightener and a reel; and the drawing die box is arranged in front of the reel, and the side edge of the reel is provided with the horizontal straightener and the conjoined straightener. The horizontal straightener is a three-roll horizontal straightener, an angle between the horizontal straightener and the conjoined straightener is 60-90DEG C, and the horizontal straightener is arranged in a position having a distance of 200-500mm to the reel. A steel wire from the die box goes through the reel, and is straightened by the conjoined straightener, the straightened steel wire is wound to the reel and is re-straightened by the horizontal straightener, the re-straightened steel wire is recovered to the reel. The combined straightening apparatus can improve the stability and the qualified rate of products.

Description

technical field [0001] The invention relates to a steel wire combined straightening method and a device thereof, belonging to the technical field of metal product processing equipment. Background technique [0002] At present, in China, conjoined straighteners are often used to adjust the appearance quality of drawn steel wires. The difficulty of adjusting the appearance quality is not only related to the structure of the straightening device, but also closely related to the size of the wire diameter and the tensile strength of the steel wire. The larger the wire diameter, the lower the tensile strength, and the adjustment is relatively easy. ≤∮2.00 mm, tensile strength ≥2000 Mp steel wire is much more difficult. At the same time, since the adjustment of the conjoined straightener is on the same straight line, the effect of eliminating the inward internal stress formed by winding the wire on the reel is not good, and the phenomenon of steel wire shrinking inward will appear...

AI Technical Summary

Problems solved by technology

The difficulty of adjusting the appearance quality is not only related to the structure of the straightening device, but also closely related to the size of the wire diameter and the tensile strength of the steel wire. The larger the wire diameter, the lower the tensile strength, and the adjustment is relatively easy. ≤∮2.00 mm, steel wire with tensile strength ≥2000 Mp is much more difficult

At the same time, since the adjustment of the conjoined straightener is on the same straight line, the effect of eliminating the inward internal stress formed by winding the wire on the reel is not good, and the phenomenon of steel wire shrinking inward will appear, commonly known as "shrinking ring". A set of conjoined straighteners adjusts the appearance, and the pass rate is ≤95%

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