Full-automatic calibration method for opening degree of side guide plate of heavy and medium plate mill

Abstract

The invention discloses a full-automatic calibration method for the opening degree of a side guide plate of a heavy and medium plate mill. The full-automatic calibration method is suitable for a modern heavy and medium plate production line with a steel plate profile gauge (POG) or a width gauge arranged above the side guide plate. A periodic calibration calculation module is additionally arranged in an automatic system, and after the module calculates the width deviation value of a plurality of side guide plates and the profile gauge in an accumulative mode, data filtering is carried out, and the calibration value of the side guide plates is adjusted in a self-adaptive mode. According to the full-automatic calibration method, the time and the labor cost of the opening degree calibration operation of the side guide plates are saved, the safety risk is reduced, and the precision of the measurement width of the side guide plates is improved.

Description

technical field [0001] The present invention relates to the automatic control technology of the medium and heavy plate rolling production line, more specifically, relates to a kind of automatic calibration method for the opening degree of the side guide plate of the medium and heavy plate rolling mill, especially suitable for the medium and heavy plate with the steel plate profiler arranged above the side guide plate production line. Background technique [0002] At present, some modern medium and heavy plate rolling production lines are equipped with a steel plate profiler (also known as POG). POG is usually installed above the front guide plate of the rolling mill to provide steel plate width and profile measurement data for steel plate width control and steel plate plane shape. Control, such as the 5-meter thick plate rolling production line used by general iron and steel enterprises. [0003] The side guide plates arranged front and back of the modern medium and heavy p...

AI Technical Summary

Problems solved by technology

[0012] 2) As stated in the background technology section of CN 206898071 U, during the rolling process, if the equipment of the hydraulic cylinder of the side guide plate is not in good condition, slow internal leakage may occur, and the drive transmission chain may also be worn, which will affect the opening degree of the side guide plate Accuracy, so that the measured width value of the side guide plate is too small

[0016] 2) In addition to using the tape measure method, it is often necessary to add additional special measuring devices, which increases cost investment and equipment maintenance;

[0017] 3) Most of them work on-site beside the machine, and the safety risks of operators are high;

[0018] 4) The calibration interval is long, and equipment status problems such as liner wear, oil cylinder internal leakage, and transmission chain wear that affect the accuracy of the opening cannot be adapted in time, which affects the width accuracy of the final output side guide plate

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