A cold shear automatic steel cutting control method

Abstract

The invention provides a cold shear automatic steel cutting control method, which relates to the technical field of steel rolling control. The present invention cancels the use of the absolute value encoder with DP communication, which avoids the problem that the absolute value encoder of DP communication affects other devices on the entire DP network, and realizes that only one proximity switch is used through design and programming. The control method of automatic cold shear steel cutting is completed. After the improvement, the control is simple, the principle is clear, and it is convenient for spot inspection and maintenance. In the event of an accident, it only takes a few minutes to replace the proximity switch, which effectively reduces the troubleshooting time. Option, the operator calculates and obtains the parameters of the first-stage rolling and cutting position according to the different interval time settings, which is convenient to change the interval time of the first-stage rolling and cutting according to the needs and avoid the deviation of the first-stage rolling and cutting.

Description

technical field [0001] The invention relates to the technical field of steel rolling control, in particular to a cold shear automatic steel cutting control method. Background technique [0002] In the steel rolling control of the steel industry, the cold shear uses the DP communication absolute encoder and the spindle proximity switch to complete the automatic steel cutting of the cold shear. Since the location where the absolute encoder and the proximity switch are installed is narrow, it is not convenient for inspection and maintenance. , and it takes a long time to replace the absolute encoder, usually more than one hour, and when the spare parts are replaced in the accident state, the accident time will be longer; [0003] Moreover, the absolute value encoder of DP communication is used for programming. The programming is complicated, and it is not convenient for the post personnel to debug and modify parameters. Moreover, the DP communication mode is adopted. Once the D...

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Problems solved by technology

[0002] In the steel rolling control of the steel industry, the cold shear uses the DP communication absolute encoder and the spindle proximity switch to complete the automatic steel cutting of the cold shear. Since the location where the absolute encoder and the proximity switch are installed is narrow, it is not convenient for inspection and maintenance. , and it takes a long time to replace the absolute encoder, usually more than one hour, and when the spare parts are replaced in the accident state, the accident time will be longer;

[0003] Moreover, the absolute value encoder of DP communication is used for programming. The programming is complicated, and it is not convenient for the post personnel to debug and modify parameters. Moreover, the DP communication mode is adopted. Once the DP line of the encoder has a problem, it will affect the entire DP communication network. Other DP communication equipment caused the expansion of the accident, and in the prior art, in the process of cold shearing and steel rolling, the start of the cold shear has a certain delay, which is easy to cause the distance error of the first stage of steel rolling. Therefore, the present invention proposes a cold shear Automatic steel cutting control method to solve the problems in the prior art

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