Negative deviation monitoring system and negative deviation detection calculation method for ribbed steel bars

Abstract

The invention relates to a negative deviation monitoring system and a negative deviation detection calculation method for ribbed steel bars. The negative deviation monitoring system comprises a data acquisition system, a data processing system, a conventional automatic bar rolling line control system and a field display system; the data acquisition system and the conventional automatic bar rolling line control system communicate with the data processing system through industrial Ethernet; the data processing system and the field display system are connected through a serial bus; the data acquisition system comprises a steel material weighing terminal, a hot metal monitor and a programmable logic controller (PLC 1); the steel material weighing terminal is connected with the PLC 1 through a field bus; the hot metal monitor is connected with the PLC 1 through a screened cable; the conventional automatic bar rolling line control system comprises an upper computer, a DC speed regulation device and a programmable logic controller (PLC 2); the upper computer communicates with the PLC 2 through industrial Ethernet; the DC speed regulation device is connected with the PLC 2 through another field bus. The negative deviation monitoring system provided by the invention can effectively improve the steel billet yield and reduce the rolling cost.

Description

technical field [0001] The invention relates to a ribbed steel bar negative deviation monitoring system and a negative deviation detection calculation method on a ribbed steel bar rolling production line, belonging to the production technical field of steel bar wire rods in iron and steel smelting. Background technique [0002] When steel rolling enterprises in the metallurgical industry roll ribbed steel bars (commonly known as rebar), they can increase the yield of steel products through reasonable negative deviation rolling without increasing production costs or reducing costs. The negative deviation rolling of rebar is to ensure that the performance of the product fully meets the national standards and user requirements. During the rolling process, the cross-sectional size of the finished steel is controlled within the negative deviation range of the nominal size according to the specified standard, but Because the negative deviation of the rebar weight is affected by fa...

AI Technical Summary

Problems solved by technology

This empirical monitoring method not only has a large subjective adjustment error of the finish rolling adjuster, but also causes a large dimensional deviation in the rolled finished steel, and the pass rate of the finished steel is relatively low, which seriously damages the benefits of the enterprise. The ribbed steel bar moves at high speed and continuously advances during the rolling process, so that the information feedback in this method is not timely, and dynamic real-time monitoring cannot be realized, which seriously affects the production efficiency of rebar.

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