A Combined Cold Rolling Stretch Bending Straightening Machine

Abstract

The invention provides a combined cold rolling stretch bending straightening machine, which belongs to the technical field of tension leveling equipment. The straightening machine includes turning rolls, entrance tensioning rolls, multi-roll straightening, stretching and straightening rolls, roll boxes, racks, bending rolls, straightening rolls, exit tensioning rolls and elevators, steering The rollers, the entrance tension roller group, the multi-roll straightening system, the tension straightening roller system, the bending roller group, the straightening roller group and the exit tension roller group are arranged in sequence along the strip conveying direction, the multi-roll straightening system, the tension leveling Straight rolls, bending rolls and straightening rolls are installed on the frame, multi-roll straightening, stretching straightening rolls, bending rolls and straightening rolls are all equipped with roll boxes and the lower parts are connected synchronously by lifting The rod connects the lift. The leveler can improve the scale-breaking effect of the strip surface, improve the pickling efficiency, reduce the acid consumption in the pickling process, effectively improve the degree of wear, reduce the risk of over-stretching of the weld, and reduce the production cost of the enterprise. Improve the safety of equipment operation.

Description

technical field [0001] The invention relates to the technical field of stretching and straightening equipment, in particular to a combined cold-rolled stretching and bending straightening machine. Background technique [0002] Due to the influence of many factors such as rolling force, roll bending force, roll crown, and process lubrication during the rolling process, the local extension is too large, and the defects of the rolled plate appear, such as double-sided waves, single-sided waves, middle waves, Defects of wavy ribs, warped ribs and warped ribs. The tension leveler plays a role in improving the shape of the plate and improving the effect of scale breaking in the cold rolling production. Therefore, the enterprise's requirements for high-quality strips pose a greater challenge to the working capacity of the tension leveler. At present, the tension leveler unit is mainly composed of two bends and one leveler. When producing high-strength steel, the scale breaking eff...

AI Technical Summary

Problems solved by technology

At present, the tension leveler unit is mainly composed of two bends and one leveler. When producing high-strength steel, the scale breaking effect is poor and the quality of the plate shape is low. In addition, in order to better improve the plate shape and improve the pickling efficiency, the enterprise has caused the tension leveler roll Frequent damage and high consumption of pickling greatly increase the production cost of the enterprise

At the same time, when the enterprise uses the multi-roller straightening machine to improve the shape defects of the strip steel plate and eliminate the internal stress, the scale breaking effect of the strip steel is poor, and the wear of the multi-roller straightening roller system is more serious.

[0003] The main problems in the existing tension leveling machine are: 1. There are plate shape defects on both sides of the strip steel, and the scale breaking effect is inconsistent, which affects the pickling efficiency of the subsequent pickling process, makes the quality of the finished product worse, and reduces the economic benefits of the enterprise

2. The production specifications of strip steel are complex, the roller system is seriously worn and replaced frequently, which affects normal production and increases the production cost of the enterprise

3. When producing strip steel with different specifications, the surface quality and flatness of the strip steel are poor, which seriously affects the quality of finished products and reduces the economic benefits of the enterprise

4. In the production of strip steel with different specifications, in order to improve the quality of the plate shape, the insertion depth of the tension leveling machine is increased, which is prone to weld seam tension and leveling belt breakage accidents, which reduces the safety of the tension leveling equipment and affects the normal production of the enterprise

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