System and method for controlling cold tube-rolling mill tube seam detection

Abstract

The invention relates to a system and method for controlling cold rube-rolling mill tube seam detection. The system comprises a PLC, an HMI, a main motor speed adjusting device, an electromagnetic valve relay, an inlet and outlet chuck hydraulic device, an eddy annular tube seam detection instrument (1), a feeding-in motor driving device and a host encoder, wherein the input end of the PLC is respectively connected with the HMI, the eddy annular tube seam detection instrument (1) and the feeding-in motor driving device, the output end of the PLC is respectively connected with the main motor speed adjusting device and the inlet and outlet chuck hydraulic device through the electromagnetic valve relay, and the input end of the feeding-in motor driving device is connected with the host encoder. According to the system and method for controlling the cold rube-rolling mill tube seam detection, the error caused by manual observation can be avoided, the production efficiency is comprehensively improved, and the high-speed full-automatic production of a tube-rolling mill can also be achieved.

Description

technical field [0001] The invention relates to a pipe seam detection and control system and method of a cold rolling pipe mill. Background technique [0002] With the development of my country's economy, in recent years, a large number of cold-rolled seamless steel pipes have been demanded in the fields of nuclear power, thermal power, chemical fertilizers, chemicals, chemical fibers, medicine and health, food, oil drilling, bearing manufacturing, coal mining, aerospace and military industries, etc. , At the same time, my country also exports a large amount of steel pipes to foreign countries every year, so there is a large demand for high-speed automatic cold-rolled pipe machines in the market. During the production process of the high-speed cold-rolled pipe mill, when the pipe joints of the front and rear pipes enter the main frame, due to the high speed, the operator cannot observe the specific position of the pipe joints in time. Due to the uncertainty of the position o...

AI Technical Summary

Problems solved by technology

During the production process of the high-speed cold-rolled pipe mill, when the pipe joints of the front and rear pipes enter the main frame, due to the high speed, the operator cannot observe the specific position of the pipe joints in time

Due to the uncertainty of the position of the pipe seam, the operator cannot coordinate the actions of the various parts of the rolling mill accordingly, which is likely to cause the following failures: 1. The inlet chuck is not opened in time, and the pipe end crashes the inlet chuck; 2. The outlet The chuck is not opened in time, the pipe end hits the outlet chuck, and the mandrel hole pattern is damaged, and the rolling mill is stuck; 3. The quick pull-out device does not work in time, causing two pipes to intersect or squeeze at the outlet chuck at the same time Inside the hollow shaft, it cannot be taken out; 4. When the pipe joint enters the rolling area, the main engine does not slow down in time, causing the front and rear pipes to cross each other, resulting in production accidents

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