Online automatic detection device for strip steel loop decoupling and detection method thereof

Abstract

The invention relates to an online automatic detection device for strip steel loop decoupling and a detection method thereof. The device comprises a rotary encoder used for detecting loop quantity and installed at the driving shaft end of a loop winching motor, a plurality of position induction switches respectively and correspondingly arranged at the normal stopping positions of loop trolleys and a programmable logic controller (PLC). The input end of the PLC is connected with the position induction switches and a winching encoder, and the output end of the PLC is connected with an alarming device. When a loop cart moves to the position of one loop trolley, the rotary encoder inputs measured loop quantity into the PLC. If the loop trolley is located at the normal stopping position, the position induction switch of the loop trolley is activated, the corresponding PLC input signal is 1, otherwise, the signal is 0. The position induction signal of each loop trolley is sequentially input into the PLC to be compared with value of a control indicator. If the signal is not inconsistent with the value, the loop trolley is in the decoupling mode, and the alarming device alarms. The detection method is simple, reliable and effective, has high cost performance and is capable of automatically and timely judging loop decoupling.

Description

technical field [0001] The invention relates to stainless steel hot-acid annealing process equipment, in particular to an online detection technology for stainless steel strip looper decoupling, in particular to an online automatic detection device for stainless steel strip steel looper decoupling and a detection method thereof. Background technique [0002] In the production of steel sheets, loopers are often set up to buffer the speed reduction or shutdown of the unit caused by the auxiliary operation time in high-speed production, so as to ensure the continuity of the normal production of the unit. The looper in the production line of the steel plate and strip industry, in order to save space, generally, the looper is composed of multiple layers, and the looper group is composed of a looper cart and multiple looper trolleys. The normal hooking and uncoupling functions can be realized between the sleeves. When the cover is flushed, each vehicle is hooked to each other in t...

AI Technical Summary

Problems solved by technology

Therefore, the reliability and stability of the looper work is very important. The most common and serious failure of the looper is the serious pile of steel caused by the abnormal decoupling of the looper trolley. Loop stacking of steel can cause direct or indirect economic losses ranging from tens of thousands to hundreds of thousands of yuan. It is of great economic significance to improve the reliability of looper equipment.

[0003] Most of the loopers in the iron and steel industry are often set in relatively hidden places, and often cannot be found in time after decoupling, resulting in further expansion of the accident

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