Duplex type machine for straightening and cutting off reinforcing steel bars

Abstract

A reinforcing bar straightening and cutting-off machine features that a hydraulic cylinde is arranged in the base of paying out frame for both rotating and inclining the paying out frame, two sets ofstraightening mechanism are used for preventing axial torsion of reinforcing bar by rotating oppositely, its straightening rotor has T-shaped slot and circular guide sleeve for regulating the straightening roller, and a hydraulic cylinder is used as the power source of cutting off. Its advantages are easy feeding, compact structure, high straightening quality and precise sizes.

Description

Technical field [0001] The invention relates to the technical field of wire rod processing or treatment, in particular to a compound steel bar straightening and cutting machine. Background technique [0002] my country has decades of history in developing and producing steel bar straightening and cutting machines, especially in recent years new products continue to emerge. But up to now, the existing steel bar straightening and cutting machine has the following problems in varying degrees: one, at present, each plate of steel bar is very big and heavy, and the pay-off frame needs to be done very big, so it is very big for the installation. Difficulties are caused by materials, especially loose bundles of wire rods, even if there is a lifting device to load materials, it is also very difficult. 2. In the prior art, the distance between the straightening roller (straightening element) of the straightening mechanism of the steel bar straightening and cutting machine in the dir...

AI Technical Summary

Problems solved by technology

But up to now, the existing steel bar straightening and cutting machine has the following problems in varying degrees: one, at present, each plate of steel bar is very big and heavy, and the pay-off frame needs to be done very big, so it is very big for the installation. Difficulties caused by materials, especially loose bundles of wire rods, even with lifting equipment, it is also difficult to load materials

2. In the prior art, the distance between the straightening roller (straightening element) of the straightening mechanism of the steel bar straightening and cutting machine in the direction of the straightening swivel axis is fixed, regardless of the large diameter and small diameter, high strength and low The high-strength steel bar has only one deformation zone of constant size, which has poor adaptability to steel bars of different diameters and different strengths, and the straightening effect is not good

3. The contact angle between the axis of the straightening roller installed obliquely on the straightening swivel and the axis of the steel bar is fixed. If the inclination angle is designed according to the design of the large-diameter steel bar, the contact angle of the straightened small-diameter steel bar will change. The area becomes smaller, so that in the straightening process, the straightening rollers will press out evenly distributed small bends on the surface of the steel bar, making the straightening quality very poor

4. The existing steel bar straightening and cutting machines are all completed by a group of rotating straightening mechanisms

During the straightening process, the straightening mechanism can only rotate in one direction, which will distort the axis direction of the steel bar after straightening, especially because the two longitudinal ribs of the hot-rolled ribbed steel bar are higher, and the distortion after straightening is more serious.

5. The cutting mechanism is easy to cut continuously, cutting out the scraps will cause waste

6. The sizing is inaccurate and the cutting error is large

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