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Casting blank length precision measuring device and method

A technology of precise measurement and slab casting, which is applied in the field of casting, can solve problems affecting measurement accuracy, etc., and achieve the effect of improving measurement accuracy, satisfying measurement accuracy, and accurate measurement

Inactive Publication Date: 2014-07-09
BAOSHAN IRON & STEEL CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The resolution of the camera and the drift of the camera's field of view will affect the measurement accuracy

Method used

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  • Casting blank length precision measuring device and method
  • Casting blank length precision measuring device and method
  • Casting blank length precision measuring device and method

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Embodiment Construction

[0025] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0026] The measurement of the length of the slab is very important to the lean production of continuous casting. The traditional length measurement method uses the length measuring roller. When the slab is moving, the length measuring roller is dragged to count the rolling pulses. If the slab jumps, the slab and the measurement If the long roller is in poor contact, the length measuring roller cannot be dragged normally, and the measurement result will be incorrect. And the longer the slab, the greater the probability of the slab jumping, and the greater the error.

[0027] In the production process of casting slabs, starting from cutting, it usually needs to go through multiple processes such as deburring, spray printing, casting slab inspection, traversing trolley transportation, and off-line. Each process usually has 1 set ...

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Abstract

The invention discloses a casting blank length precision measuring device which comprises a roller way, a counter, a processor, an inlet sensor and an outlet sensor. The inlet sensor and the outlet sensor are placed at the two ends of the roller way respectively, the distance between the inlet sensor and the outlet sensor is D, the length of a casting blank is L, and the difference between D and L is space distance difference Dt. By measuring the space distance difference Dt, the length the casting blank is obtained by conversion according to the distance D. The error of Dt is far smaller than the error of the measured length L of the casting blank, and the precision of the casting blank length L obtained by conversion of the space distance difference Dt is higher than the directly-measured casting blank length L. A casting blank length precision measuring method comprises the steps that the inlet sensor and the outlet sensor are arranged at the two ends of the roller way, and the distance D between the inlet sensor and the outlet sensor is measured in advance; when the casting blank passes through the inlet sensor and the outlet sensor, triggering signals are generated, the counter carries out counting according to the triggering signals, and a counting result Dt is sent to the processor; and the processor computes the length L of the casting blank according to the distance D and the counting result Dt.

Description

technical field [0001] The invention relates to the automation instrument technology in the field of casting, and more specifically relates to a device and method for accurately measuring the length of a slab. Background technique [0002] Slab length is an important quality index of slab quality. This parameter is especially important for dimension-sensitive steel products such as wide and thick plates. If the length error is too large, it will cause the size of the wide and thick plate of the final product to be substandard. [0003] The traditional slab length measurement method uses measuring rollers to measure the length of the slab. When the casting slab passes the measuring roller, the measuring roller is driven to rotate, and the length of the casting slab can be calculated according to the number of turns and the circumference of the measuring roller. Although simple and reliable, the casting slab usually crosses two sets of roller tables during the whole detecti...

Claims

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Application Information

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IPC IPC(8): G01B21/06
Inventor 方志宏夏勇傅正权
Owner BAOSHAN IRON & STEEL CO LTD
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