The short stress line multi-roller straightening machine is simple in structure, compact in structure, light in weight and low in costs, and has features of short stress line and high rigidity.

Thus, the machine part is excellent in the part strength and bend straightening property.

The rebar drives the straightening rolls of the straightening and stretching mechanism.

In order to straighten the central part of the rolled stock, not less than four straightening rings are used and distributed along the length of the straightening area.

In order to straighten the end parts of the rolled stock, the minimum number of straightening rings is used.

During straightening, the eccentricities of the rings are modified according to programmed straightening.

For this purpose, the leveling force during leveling is applied directly to the flange (5b, 5c).

The roller system comprises an upper straightening roller group (3) and a lower straightening roller group (4).

The rebar is repeatedly bent by the straightening rolls of the straightening and stretching mechanism, and is straightened and stretched.

The rebar is repeatedly bent by the driven straightening rolls of the straightening and stretching mechanism, and is straightened and stretched.

A withdrawal and straightening machine for a large square billet continuous casting machine comprises a group of upper clamping rollers (5) and a group of lower clamping rollers (7).

This roll can prevent the deformation of the mouth of a pipe end that may occur during straightening of the pipe, thus providing enhanced straightening effects.

The rebar is repeatedly bent by the driven straightening rolls of the straightening and stretching mechanism, and is straightened and stretched.

After repeatedly bent by the driven straightening rolls of the straightening and stretching mechanism, the rebar is straightened and stretched.

Drawing and/or straightening unit for feeding one or more oblong metal products (11) to a machine for working the metal products (11).