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Detection method of head and tail positions and moving direction of hot-rolled piece

A technology of movement direction and detection method, applied in the direction of length measuring device, metal rolling, metal rolling, etc., can solve the problems affecting the safety and running of the rolling mill and the efficiency of production and rolling.

Active Publication Date: 2014-12-03
BAOSHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] To sum up, it is impossible to reliably install and use the existing technology in this water vapor environment, so that it is impossible to track and obtain the position and direction of movement of the rolled piece in real time, which seriously affects the safety of the rolling mill Anterograde and Production Rolling Efficiency

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  • Detection method of head and tail positions and moving direction of hot-rolled piece
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  • Detection method of head and tail positions and moving direction of hot-rolled piece

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Embodiment Construction

[0034] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0035] The detection method of the head and tail position and the direction of motion of the hot-rolled rolling piece of the present invention mainly comprises the following steps:

[0036] A. Install an industrial camera on the side of the hot rolling mill to take continuous pictures of the rolled piece and input the image into the computer;

[0037] B. Divide several detection window areas in each frame of image by the computer, judge whether there is a rolled piece in the area according to the number of bright spots in each area, and set the corresponding logical value;

[0038] C. Determine the head and tail positions of the rolled piece according to the logic values ​​of each area in the same frame image;

[0039] D. According to the combined judgment of the logic values ​​of each area in two adjacent frames of images, d...

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Abstract

The invention discloses a detection method of the head and tail positions and the moving direction of a hot-rolled piece; the detection method comprises the following steps that an industrial camera is used for imaging a rolling process to a rolled piece on the side of a rolling mill; a computer is used for setting a detection window area in an image; and whether the rolled piece exists or not is judged according to the number of imaged light spots in the area, so that the head and tail positions and the moving direction of the rolled piece are judged. The detection method is simple and convenient, is fast and effective, is not interfered by water vapor, and is fully applicable to the rolling detection and control under a water vapor environment.

Description

technical field [0001] The invention relates to a hot-rolled piece detection technology, more specifically, to a detection method for the head and tail positions and moving direction of a hot-rolled piece. Background technique [0002] In hot rolling rough rolling production, see figure 1 , the head and tail position and movement direction of the rolled piece are very important production parameters, which provide basic guarantee for the control of hot rolling, shearing, and rolling mill coordination. At present, hot metal detectors are usually used to receive infrared rays emitted by high-temperature rolled pieces and convert light energy into electrical signals through photosensitive elements to realize position detection of hot billets entering and exiting, and return a set of switching signals. In special environments, such as steel rolling production, there is a lot of dust and water vapor on both sides of the reciprocating roughing mill. At the same time, the upper su...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B38/00
Inventor 夏勇方志宏陆敏健丁鸿儒张先念
Owner BAOSHAN IRON & STEEL CO LTD