Coiler side guide plate control method for preventing steel coils on hot rolling production line from staggering

Abstract

The invention relates to a coiler side guide plate control method for preventing steel coils on a hot rolling production line from staggering, and belongs to the technical field of metallurgical plate production process. The technical scheme includes that programming is changed in a PLC (programmable logic controller) for controlling a coiler side guide plate, a force control link is added into a side guide plate control logic of a position control side, the side guide plate of the position control side is switched to the force control link and presses strip steel after a coiler mandrel is loaded, and then positions are controlled. The coiler side guide plate control method has the advantages that the problem that a side guide plate of a position control side cannot press strip steel is effectively solved, tail staggering of the steel coils is prevented, compared with an improved side guide plate control mode, the coiler side guide plate control method enables the side guide plate of the position control side to automatically position the edge of the strip steel without manual intervention and is efficient, safe and reliable, owing to double-sided pressure control, the strip steel is more rapidly pressed as compared with traditional one-sided pressure control, scrolling of inner rings can be more effectively controlled, and as the problem of swing after pressing of the side guide plate is solved, the replacement cycle of a transmission mechanism for the side guide plate can be prolonged, the expense of spare parts is saved, and maintenance time is shortened.

Description

technical field [0001] The invention relates to a method for controlling a side guide plate of a coiler for preventing mislayering of steel coils in a hot rolling production line, and belongs to the technical field of metallurgical plate production technology. Background technique [0002] At present, with the continuous upgrading of my country's industrial quality, customers have put forward higher requirements for the quality requirements of steel products. The coil shape quality of hot-rolled strip steel not only affects the product grade, but also affects the production of the next process. Improving the coil shape quality of steel coils is one of the important measures to reduce costs and increase efficiency. The control of the side guide plate of the coiler is one of the main factors of the coil quality of the steel coil. The background art of the control process of the side guide plate is as follows: There are two side guide plates, which are respectively located on b...

AI Technical Summary

Problems solved by technology

This solution can partially solve the problem, but its disadvantage is that it is difficult to determine the compensation value, which varies with the width and thickness of the strip

If it is too small, it will have no effect, and the position control side still cannot touch the strip steel; if it is too large, the side guide plates on both sides will clamp the strip steel in a position-controlled manner, which may cause edge damage and quality problems, and may even be clamped by the side guide plates. Strip steel, the strip steel cannot continue to enter the coiler, resulting in stacked steel

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