A Control System for Switching and Cutting of Small Tension Regulator in Roughing Mill

Abstract

The invention discloses a switching control system for a small tension regulator of a rough rolling mill, which belongs to the field of electric control. The program controls the switching of the small tension regulator of the corresponding rolling mill through the switching control program module of the small tension regulator of the edge mill, the switching control program module of the small tension regulator of the U1 rolling mill, and the switching control program module of the small tension regulator of the U2 rolling mill. , the state judgment unit of the rolled piece inspection can effectively control the working enable state of the small tension regulator by judging whether there is a rolling piece in the rolling mill. This control method can realize the The small tension control of the rack prevents the small tension control system from working stably in harsh environments, thus greatly improving the stability of the small tension control system of the roughing mill.

Description

technical field [0001] The invention relates to the field of electrical control, and more specifically relates to a control system for switching of a small tension regulator of a rough rolling mill. Background technique [0002] The existing universal roughing mill of the H-beam production line consists of 1# universal roughing mill (referred to as U1 mill), edge mill (abbreviated as ED mill) and 2# universal roughing mill (referred to as U2 mill). 1# and 2# universal The rough rolling mill is a 5500KW four-roll mill (2 horizontal rolls and 2 vertical rolls), while the edger is a 2000KW two-roll mill (2 horizontal rolls). The main drives of the three rolling stands of the universal roughing unit are respectively driven by an AC-AC frequency conversion synchronous motor, and each AC-AC frequency conversion device adopts a PLC control system. In order to prevent the serious push-pull phenomenon of the rolled pieces between the stands due to the unequal second flow rate of the...

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Problems solved by technology

[0006] Aiming at the existence of the universal rough rolling mills in the prior art, a large amount of metal powder smoke and dust and water vapor will be generated during the rolling process, which makes the thermal inspection between the universal rough rolling mills often have mis-picking and non-picking phenomena during the use process, resulting in The small tension regulator switching control error of the universal roughing mill and the small tension control system of the universal roughing mill cannot operate normally. The invention provides a control system for switching the small tension regulator of the roughing mill

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