Method and system achieving intermediate slab head and tail shear control

A head-to-tail and shear line technology, which is applied in the field of optimal shear control of the head and tail of the intermediate billet, can solve the problems of too little or too much shearing of the head and tail of the intermediate billet, steel jamming, and early capture, so as to achieve no slippage The amount of maintenance, the precision of cutting execution, and the effect of reducing dependence

Active Publication Date: 2013-05-08
BEIJING ZHONGYUANTONG SCI & TECH
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Problems solved by technology

These systems and methods have problems such as huge investment and difficult system adjustment, and it is difficult to intuitively avoid the defects in the imaging area and obtain the best image; moreover, they are easily affected by the speed of the intermediate blank, resulting in prematur

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  • Method and system achieving intermediate slab head and tail shear control
  • Method and system achieving intermediate slab head and tail shear control
  • Method and system achieving intermediate slab head and tail shear control

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[0042] The technical solution of the present invention will be described in detail below with reference to the drawings and preferred embodiments. The following examples are only used to illustrate and explain the present invention, and do not constitute a limitation to the technical solution of the present invention.

[0043] Such as image 3 Shown is the flow of an embodiment of the method for realizing the head and tail shear control of the intermediate blank provided by the present invention, including the following steps:

[0044] The image acquisition device uses an area array camera to acquire the image sequence of the strip;

[0045] The shape analysis device analyzes the image sequence collected by the image acquisition device, performs image preprocessing on the analyzed strip head and tail images, detects the strip shape category by detecting the preprocessed image, and then calculates according to the strip shape category The position of the strip cutting line;

[0046] T...

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Abstract

The invention provides a method and a system achieving intermediate slab head and tail shear control. The method comprises the following steps: an image acquisition device acquires image sequences of strip steel by adopting a surface formation type camera; a shape analysis device analyzes the image sequences acquired by the image acquisition device, carries out image pretreatment on head and tail images of the strip steel, detects the pretreated images, identifies the types of the strip steel, and calculates strip steel shear line positions; and a shear executive device controls shear positions of the head portion or the tail portion of the strip steel according to the strip steel shear line positions calculated by the shape analysis device. According to the method and the system, an additional device is not needed for controlling snapshot motions, and therefore operation is simplified. Besides, the method and the system can carry out various shear strategies of length fixing, percentage fixing and optimizing, and have the advantages that shear accuracy is high, shear does not slip, and maintenance amount is small.

Description

technical field [0001] The invention relates to a technology for controlling the head and tail shearing of an intermediate billet in a steel rolling process, in particular to a method and a system for realizing optimal shearing control of the head and tail of an intermediate billet. Background technique [0002] In a hot strip mill, the billet between the roughing mill and the finishing mill is called an intermediate billet. The head and tail of the irregularly shaped intermediate billet must be cut by flying shears to prevent the intermediate billet from being rolled into long strips and half-rolled waste in the subsequent coiling process. [0003] If the head and tail of the intermediate billet are cut too little, during the rolling process, the excess head and tail will cause the entire strip to jam and form roll marks on the surface of the roll, or leave a part of the tail in the rolling mill, thus Cause the steel jamming phenomenon of the next piece of steel. If the h...

Claims

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Application Information

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IPC IPC(8): B21B37/72
Inventor 桑建伟丛壮肖斌
Owner BEIJING ZHONGYUANTONG SCI & TECH
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