Method for determining shape parameters

A shape parameter and elongated technology, applied in the direction of optical devices, instruments, metal rolling, etc., can solve the problems of uncertain center of circle, unable to reflect the profile characteristics, etc., and achieve the effect of eliminating deviation value

Inactive Publication Date: 2011-08-31
ZUMBACH ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, the center of the circle is not determined in space, which leads to, for example, when the shape deviation is asymmetric, the determin

Method used

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  • Method for determining shape parameters
  • Method for determining shape parameters
  • Method for determining shape parameters

Examples

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Embodiment Construction

[0075] figure 1 The last two stages of a three-roll stand with measuring device 1 described below are shown very simplified in . Each stage has three rollers 3 , 4 , thus a three-roll roller set, of which only two of the three rollers are each shown for reasons of better clarity. Here, the penultimate three-roll roll set 6 is shown on the left, and the last three-roll roll set 7 is shown on the right. The rolling stand is used for rounding elongated products and thus for producing round profiles 5 . Arrows indicate rolling direction.

[0076] figure 2 and image 3 The arrangement of the penultimate three-roller set 6 and the last three-roller set 7 viewed from the measuring device 1 is shown.

[0077] Figure 4 The measured values ​​important for rolling round products with a three-high stand are shown in . In this case, the measured values ​​include in particular the diameter DT measured at the three pressure points of the last three-roll set 7 (shaded arrows) as well...

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Abstract

A method is provided for determining shape parameters of elongated products that are moved along the longitudinal direction thereof in rolling lines, in particular for determining the roundness of round profiles, wherein at least three shadow angles are generated and measured in a known method per se using a measurement device comprising at least two laser scanners, each of which comprises a light-sensitive sensor and a laser, said angles sitting against the elongated product to be measured and surrounding the elongated product, said shadow angles forming a polygon, wherein the corresponding tangents are calculated from said shadow angles. A contour is determined from the polygon. Contour segments are established on said contour. The desired shape parameters can be calculated from this data.

Description

technical field [0001] The invention relates to a method for determining the shape parameters of elongated products, in particular for the roundness determination of round profiles, which are moved forward in their longitudinal direction in a rolling mill, wherein the In a known manner, a measuring device with at least two laser scanners is used to generate and measure at least three projected edges abutting against the elongated product to be measured, enclosing said elongated product and forming a polygon, and calculating Out of the corresponding tangents, the laser scanners each have a photosensitive sensor and a laser. Background technique [0002] In the steel industry, so-called long products / bars are rolled in special rolling mills / mill trains to obtain the desired end product. If these elongated products are to be rolled into round bars, they are usually rolled in a three-high finishing stand / stand with multiple rolling modules (usually 3-high modules / 3-roll stacks)...

Claims

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Application Information

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IPC IPC(8): G01B11/24G01B11/245B21B38/04
CPCG01B11/2433B21B38/04B21B2261/10G01B11/245
Inventor U-P·施图德I·B·苏维拉茨
Owner ZUMBACH ELECTRONICS
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