Finishing method for straightening small and medium-sized angle steel double-line long ruler

Abstract

The invention discloses a finishing method for straightening a small and medium-sized angle double-line long ruler. The finishing method is characterized in that two finishing lines are simultaneously arranged at the back of a continuous and finishing mill, and finished angle steel can simultaneously enter the two finishing lines; a bifurcation roller bed is arranged before the finished angle steel is delivered; the finished angle steel firstly enters a cooling bed for cooling; after being cooled, the finished angle steel enters a straightening machine for straightening; after being straightened, the finished angle steel enters a pay cooling bed for aggregating and grouping; then, the finished angle steel is exported for shearing; after being sheared, the finished angle steel is exported for classification packing and bundling; and finally, the finished angle steel is calculated for storing. By the finishing method, the finished angle steel is straightened and then sheared without being dredged, thereby saving labor and time and greatly simplifying the distribution of the whole finishing lines.

Description

technical field [0001] The invention relates to a finishing method of rolled angle steel, in particular to a method in which small and medium-sized angle steel is rolled and cooled, then directly enters a straightening machine for straightening, and then cuts to length. Background technique [0002] At present, the common method of rolling and finishing small and medium-sized angle steels is that after the angle steels enter the cooling bed to cool, they are directly cut into groups and cut to length, and then straightened, packed, and put into storage. When this finishing method is sheared, it is difficult to enter the shearing machine due to factors such as bending and warping of the rolled product, and it is often assisted by manual dredging. This dredging continues throughout the shearing process; the tail of the angle steel also exists Problems such as head warping are also difficult to deal with at the tail, which seriously affects labor productivity. Straighten the s...

AI Technical Summary

Problems solved by technology

When this finishing method is sheared, it is difficult to enter the shearing machine due to factors such as bending and warping of the rolled product, and it is often assisted by manual dredging. This dredging continues throughout the shearing process; the tail of the angle steel also exists Problems such as head warping are also difficult to deal with the tail, which seriously affects labor productivity

Straighten the short-length steel after cutting, increase the number and time of steel feeding, and correspondingly increase the number of straightening equipment, making the finishing straightening and packaging line more complicated

That takes manpower and wastes time

Due to the bending of the angle steel itself, it is difficult to determine the size accurately, and there is a certain error. After packing, the end faces at both ends are not neat, which has a certain impact on the appearance of the product.

At the same time, due to the bending of the angle steel itself, some of the length of the angle steel is too long, which wastes a part of the length of the angle steel, which affects the production and economic benefits of the angle steel

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