A steel bar straightening device

Abstract

The invention relates to the field of rebar straightening equipment, in particular to a coiled rebar straightening device. The rebar straightening device comprises a drawing mechanism and a straightening mechanism. The straightening mechanism comprises a wheel carrier and at least two straightening wheel sets. The straightening wheel sets are mounted on the wheel carrier. The straightening wheel axle centerlines of two straightening wheel sets adjacent in the front-back direction are distributed at a preset included angle. Preferentially, straightening wheels of at least one straightening wheel set are each provided with at least one V-shaped groove. When a rebar is straightened on the straightening wheels, the contact surfaces of the V-shaped grooves make contact with the interfaces of transverse and longitudinal ribs of the rebar. Through the rebar straightening device, the torsion direction of the rebar can be adjusted automatically, the rebar is protected against torsion in the straightening process, and the rapid non-torsion straightening function of the coiled rebar is achieved; particularly, the coiled rebar can be effectively and rapidly straightened.

Description

technical field [0001] The invention relates to the field of steel bar straightening equipment, in particular to a coil-screw steel bar straightening device. Background technique [0002] Steel bar straightening machines in the prior art are mainly divided into two types, one is a roller-type straightening machine, and the other is a rotary drum-type straightening machine. Among them, the pressure wheel straightening machine is mostly composed of a pre-straightening mechanism, a fine straightening mechanism arranged at 90° with the pre-straightening mechanism, and a traction mechanism. The pre-straightening mechanism includes a pre-straightening wheel, and the fine straightening mechanism includes Fine straightening wheel, but the pre-straightening wheel and fine straightening wheel mainly have the following combinations: 1. The pre-straightening wheel and the fine straightening wheel are both the same arc wheel or the same angle V-shaped wheel; 2. The pre-straightening whee...

AI Technical Summary

Problems solved by technology

These combination methods can effectively straighten the round steel bar, but the straightening effect on the coiled steel bar is difficult to meet the production requirements. The main problem is that the pre-straightening wheel or the fine straightening wheel cannot restrain the rotation of the steel bar, so that in the straightening process The middle plate spiral steel bar is twisted to form a large arc spiral bend

The rotary drum straightening machine can effectively straighten the round or coiled steel bars, but the straightening of the rotary drum will cause great damage to the steel bars, and the wear of the transverse and longitudinal ribs will be serious. At the same time, it is difficult to control the start and stop of the rotary straightening method. It is easy to break the tendon when the spiral steel bar is straightened

[0003] Based on the above description, a new steel bar straightening device is urgently needed to solve the problem that the steel bar straightening device in the prior art cannot automatically adjust the torsion direction of the steel bar and prevent the torsion during the straightening process of the steel bar

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