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 plates , can not make full use of metal materials, and the mold used is a fixed mold. When different sizes need to be processed, different molds need to be replaced, and the axial adjustment mechanism of the roller shaft is mostly adjusted manually, which is very inefficient and expensive.

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