Adjustable stress relieving mechanism for cold rolling of reinforcing steel bar

Abstract

The invention provides an adjustable stress relieving mechanism for cold rolling of a reinforcing steel bar. The adjustable stress relieving mechanism comprises a bottom plate; a second supporting plate and a first supporting plate are fixed to the edges of the left and right parts of the upper end of the bottom plate correspondingly; guiding holes allowing the reinforcing steel bar to penetrate through are formed in the first supporting plate and the second supporting plate; at least two bending assemblies which are arranged at equal intervals are horizontally fixed to the upper end of the bottom plate; and each bending assembly comprises a front vertical plate and a back vertical plate which are fixed to the upper end of the bottom plate, a bending piece used for bending the reinforcingsteel bar in multiple directions is fixed between the two vertical plates, two control pieces are fixed to each of the vertical end surfaces of the opposite sides of the two vertical plates in an upper-lower manner, pulling ropes are arranged in the four control pieces, and the four pulling ropes penetrate through circular grooves in the corresponding positions of the two vertical plates and are connected with the upper and lower parts of the front and back ends of the bending piece. According to the adjustable stress relieving mechanism, the multi-direction performance of steel bending is increased, the stress release limit in the reinforcing steel bar is increased, and the elongation of the reinforcing steel bar is increased.

Description

technical field [0001] The invention relates to an adjustable stress relief mechanism for steel bar cold rolling, which belongs to the technical field of steel bar stress relief. Background technique [0002] Generally, the strength of the smooth round steel bar of the wire rod is improved after cold rolling, and the same diameter can withstand a greater breaking force, but the result is a decrease in elongation, which is also a disadvantage of cold rolled steel bars. In order to restore the elongation of the rolled steel bar, a stress relief device is generally installed at the rear of the rolling mill to increase the elongation by eliminating stress. [0003] At present, the method used by the stress relief device is generally repeated bending. For example, in the shaft type steel bar stress relief machine whose Chinese patent publication number is CN204486460U, all the bending wheels used for bending the steel bar are on one plane. When the steel bar passes through the be...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide a cold-rolled steel bar adjustable stress-relief mechanism to solve the problem that all the bending wheels for bending steel bars proposed in the background art are on one plane, causing the steel bar The deformation is only in one direction, and the effect of stress relief is not thorough. The invention increases the multi-directionality of steel bending, improves the stress release limit inside the steel bar, and increases the elongation of the steel bar.

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