Method for forming longitudinal variable-thickness cold-bent section bars in continuous rolling manner and device thereof

Abstract

The invention relates to a method for forming longitudinal variable-thickness cold-bent section materials in a continuous rolling manner and a device thereof, belongs to the field of section material processing technologies and equipment, and aims to solve the problems in the prior art that only constant-thickness cold-bent section steel can be produced, and materials cannot be fully utilized. The invention adopts the technical scheme that constant-thickness coiled materials are used as raw materials; after being uncoiled, the constant-thickness materials are flattened and pickled and then enter a variable-thickness rolling system to be rolled in a variable-thickness manner; afterwards, the constant-thickness materials are degreased and tempered in an on-line manner, and then longitudinal continuous variable-thickness plate materials are formed; the longitudinal continuous variable-thickness plate materials are smoothly rolled and longitudinally sheared and then enter a roller forming device, and the final section materials are formed; the final section materials enter a material discharging platform; and the following processes further comprise cutting-off, binding, packaging, and the like. The invention further provides the roller forming device for the cold-bent section materials according to the method. The roller forming device is provided with a computer system, a detecting device, the material discharging platform, a working table, and the like. Through adopting the method and the device, the aims of forming the variable-thickness cold-bent section materials, fully utilizing the materials, and the like are achieved.

Description

technical field [0001] The invention relates to a continuous rolling and rolling forming method and device for cold-bending profiles with longitudinal variable thickness, and belongs to the field of profile processing technology and equipment. Background technique [0002] In recent years, with the continuous development of human civilization and science and technology, the world's natural resources have been depleted and depleted, and cold-formed steel has been widely accepted as an environmentally friendly and energy-saving new building material. Compared with hot-rolled section steel, it has greater cross-sectional mechanical properties, moment of inertia, and torsional rigidity, and is easy to construct. The node connection of cold-formed section steel is also very convenient. It does not require a large number of gusset plates like hot-rolled section steel, nor is it like round pipe Nodes do require complex connections. In addition, the connection between the cold-form...

AI Technical Summary

Problems solved by technology

In this method, the existing roll forming process principle is applied to the roll forming of U-shaped channel steel, which is advanced to a certain extent, but the forming mold of the production line of this method has poor flexibility and is only suitable for rolling of equal thickness p

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