Controlling method and device for cutting performed by flame cutting machine of continuous casting machine

Abstract

The invention discloses a controlling method and device for cutting performed by a flame cutting machine of a continuous casting machine. The device is characterized in that two driving motors are correspondingly controlled by a PLC through two frequency converters, first and second cutting guns in the flame cutting machine are correspondingly controlled by the two driving motors, and gun countingdetecting members are arranged on the first and second cutting guns. The method comprises the steps that a cutting instruction is sent by the PLC, and a steel blank is synchronously cut by the firstand second cutting guns according to the cutting instruction; operation data of the first and second cutting guns is monitored in real time by the PLC; whether or not the moving of the first and second cutting guns is normal is judged by the PLC according to the operation data; if the moving of the first cutting gun is abnormal, the second cutting gun is controlled to cut continuously until the cutting of the steel blank is completed. According to the method and the device, cutting can be conducted by the other cutting gun after any of the cutting gun is damaged, an operator does not need to hold the cutting gun to cut the blank, the labor intensity of the operator is reduced, the safety performance is improved, and fully automatic controlling of the flame cutting machine is achieved.

Description

technical field [0001] The present application relates to the technical field of control in the metallurgical industry, in particular to a control method and device for cutting by a continuous casting machine and a torch cutter. Background technique [0002] The continuous casting machine is a production equipment that can continuously cast high-temperature molten steel into a billet with a certain cross-sectional shape and a certain size. The torch cutter system is one of the core systems of the entire continuous casting production line. During the production process of the continuous casting machine, the billet is cut into certain length billets by the torch cutter. Since the torch cutter has been continuously operated in a high temperature environment for a long time, it must have extremely high reliability and good stability. [0003] Regardless of whether it is a special-shaped billet or a slab continuous casting machine, the billet is cut by the torch cutter. Usually,...

AI Technical Summary

Problems solved by technology

[0005] This application provides a cutting control method and device for a continuous casting machine torch cutting machine to solve the technical problem of time-consuming, labor-intensive and low safety when the cutting gun that cannot normally cut billets is replaced by an operator in the prior art

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