Combined type cold-rolled stretching-bending straightener

Abstract

The invention provides a combined type cold-rolled stretching-bending straightener, and belongs to the technical field of withdrawal and straightening equipment. The combined type cold-rolled stretching-bending straightener comprises a turning roller, an inlet tensioning roller set, a multi-roller straightening system, a stretching and straightening roller system, roller boxes, a machine frame, abending roller set, a straightening roller set, an outlet tensioning roller set and an elevator. The turning roller, the inlet tensioning roller set, the multi-roller straightening system, the stretching and straightening roller system, the bending roller set, the straightening roller set and the outlet tensioning roller set are sequentially arranged in the conveying direction of strip steel, themulti-roller straightening system, the stretching and straightening roller system, the bending roller set and the straightening roller set are installed on the machine frame, and the multi-roller straightening system, the stretching and straightening roller system, the bending roller set and the straightening roller set are provided with the roller boxes and the lower parts of the multi-roller straightening system, the stretching and straightening roller system, the bending roller set and the straightening roller set are connected with the elevator through lifting synchronous connecting rods.The combined type cold-rolled stretching-bending straightener can improve the scale breading effect on the surface of the strip steel, improve the acid pickling efficiency, reduce the acid consumptionamount in an acid pickling technology, can effectively improve the wear degree, reduce the risk of excessive withdrawal and straightening of welding lines, reduce the enterprise cost, and improve thesafety 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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