JP2006263779A - Side guide control method for hot rolling apparatus - Google Patents

Side guide control method for hot rolling apparatus Download PDF

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JP2006263779A
JP2006263779A JP2005085969A JP2005085969A JP2006263779A JP 2006263779 A JP2006263779 A JP 2006263779A JP 2005085969 A JP2005085969 A JP 2005085969A JP 2005085969 A JP2005085969 A JP 2005085969A JP 2006263779 A JP2006263779 A JP 2006263779A
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guide
steel
meandering
driving
hot rolling
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Japanese (ja)
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Masahiro Kaneo
昌宏 兼尾
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Jfe Steel Kk
Jfeスチール株式会社
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Priority to JP2005085969A priority Critical patent/JP2006263779A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a side guide control method for a hot rolling apparatus capable of preventing the occurrence of flaws or broken surfaces of an end in the width direction of a steel. <P>SOLUTION: The side guide control method for the hot rolling apparatus comprises preventing meandering of steel by a side guide installed immediately before a pinch roll installed immediately before coiling a finish-rolled steel. The method is characterized in that the meandering quantity of the steel is obtained by difference in opening or difference in load between the drive side and the counter-drive side of the pinch roll, and the opening of the side guide is corrected based on the meandering quantity. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、熱間圧延設備の巻取装置直前に設置されたサイドガイドの制御を行う熱間圧延設備のサイドガイド制御方法に関するものである。   The present invention relates to a side guide control method for a hot rolling facility that controls a side guide installed immediately before the winding device of the hot rolling facility.
熱間圧延設備では、鋼材の曲がりや蛇行によって鋼材の幅方向の飛び出しが発生し、この飛び出した鋼材が巻取装置直前に設置されたサイドガイドと接触することにより発生する、鋼材の幅方向端部の疵や折れが問題であった。この防止技術として、例えば特許文献1に開示されている技術がある。この技術は、鋼材の蛇行あるいは曲がりによってサイドガイドが受ける荷重を監視し、その荷重の増大に伴いサイドガイドを開放するというものである。   In a hot rolling facility, the steel material bends and meanders in the width direction of the steel material, and the steel material that has come out contacts the side guide installed just before the winding device. The problem was the wrinkles and breakage of the club. As this prevention technique, there exists a technique currently disclosed by patent document 1, for example. In this technique, the load received by the side guide due to meandering or bending of the steel material is monitored, and the side guide is released as the load increases.
また、鋼材の蛇行量を減少させる技術として、特許文献2に開示されている技術がある。この技術は、サイドガイドの上流側に設置された幅計または仕上圧延機出側に設置された蛇行検出器により検出された鋼材の蛇行量を基に、ピンチロールのレベリング量または仕上圧延機のレベリング量を鋼材の蛇行量が減少させるように制御するというものである。
特開平6−262260号公報 特開2004−290990号公報
Moreover, there exists a technique currently disclosed by patent document 2 as a technique to reduce the amount of meandering of steel materials. This technology is based on the amount of pinch roll leveling or the finish rolling mill based on the meandering amount of steel detected by a width meter installed upstream of the side guide or a meandering detector installed on the finishing mill exit. The leveling amount is controlled so as to reduce the meandering amount of the steel material.
JP-A-6-262260 JP 2004-290990 A
しかしながら、特許文献1に開示された技術では、荷重の増大に伴いサイドガイドを開放するというものの、開放時点ではサイドガイドと鋼材が既に接触しているため幅方向端部の疵や折れは皆無にはできないという問題がある。   However, in the technique disclosed in Patent Document 1, although the side guide is opened as the load increases, the side guide and the steel material are already in contact with each other at the time of opening, so there is no wrinkling or bending at the end in the width direction. There is a problem that can not be.
また、特許文献2に開示された技術では、ピンチロールあるいは巻取機に起因する蛇行を検出し制御するのは不可能であるという問題がある。   Further, the technique disclosed in Patent Document 2 has a problem that it is impossible to detect and control meandering caused by a pinch roll or a winder.
本発明は、上記事情に鑑みてなされたもので、上記課題を解決して、鋼材幅方向端部の疵や折れの発生を防止することができる熱間圧延設備のサイドガイド制御方法を提供することを目的とする。   This invention is made | formed in view of the said situation, provides the side guide control method of the hot rolling equipment which can solve the said subject and can prevent generation | occurrence | production of the wrinkles and a crease | fold of a steel-material width direction edge part. For the purpose.
本発明の請求項1に係る発明は、仕上圧延された鋼材を巻き取る直前に設置したピンチロールの直前に設置したサイドガイドにより前記鋼材の蛇行を防止する熱間圧延設備のサイドガイド制御方法において、前記ピンチロールの駆動側と反駆動側の開度差または荷重差より前記鋼材の蛇行量を求め、該蛇行量に基づいて前記サイドガイドの開度を修正することを特徴とする熱間圧延設備のサイドガイド制御方法である。   The invention according to claim 1 of the present invention is a side guide control method for a hot rolling facility in which meandering of the steel material is prevented by a side guide installed just before a pinch roll installed just before winding the finish-rolled steel material. The hot rolling is characterized in that the meandering amount of the steel material is obtained from the opening difference or load difference between the driving side and the non-driving side of the pinch roll, and the opening degree of the side guide is corrected based on the meandering amount. This is a side guide control method for equipment.
本発明によれば、サイドガイドの下流側直近に設置されているピンチロールの駆動側と反駆動側の開度差もしくは荷重差より求めた鋼材の蛇行量を基にサイドガイドの開度を修正するようにしたので、仕上圧延機出側に設置された蛇行検出器やサイドガイド上流側の幅計では検出できないピンチロールや巻取機に起因する蛇行が検出できるようになり、その蛇行量によりサイドガイドの開度を逐次修正することで、サイドガイドの押付力が増大することを未然に防げるため鋼材幅方向端部の疵や折れの発生を防止することができる。   According to the present invention, the opening degree of the side guide is corrected based on the meandering amount of the steel obtained from the opening degree difference or the load difference between the driving side and the non-driving side of the pinch roll installed immediately downstream of the side guide. As a result, it becomes possible to detect meandering caused by pinch rolls and winders that cannot be detected by the meandering detector installed on the exit side of the finishing rolling mill and the width gauge upstream of the side guide. By sequentially correcting the opening degree of the side guide, it is possible to prevent an increase in the pressing force of the side guide in advance, and thus it is possible to prevent the occurrence of wrinkles and breakage of the steel material width direction end.
以下、本発明を実施するための最良の形態について、図面を参照して説明する。図2は、熱間圧延設備の機器配置図の一例を示す図である。図中、1は巻取機、2はピンチロール、3はサイドガイド、4は幅計、5は鋼材、6は蛇行検出器、および7は仕上圧延機群をそれぞれ表す。   The best mode for carrying out the present invention will be described below with reference to the drawings. Drawing 2 is a figure showing an example of equipment arrangement of hot rolling equipment. In the figure, 1 is a winder, 2 is a pinch roll, 3 is a side guide, 4 is a width meter, 5 is a steel material, 6 is a meander detector, and 7 is a finishing mill group.
仕上圧延機群7により仕上圧延された鋼材5は、サイドガイド3でセンタリングされ、ピンチロール2で拘束されて巻取機1で巻き取られコイル状になる。このとき幅計4で検出された蛇行量でサイドガイド3の開度を補正する方法や、仕上圧延機群7の後に設置した蛇行検出器6によって検出された蛇行量によってピンチロール2のレベリングを調整する方法が従来実施されている。本発明は、上記幅計4および蛇行検出器6を用いることなく蛇行量を求め、サイドガイド3の開度を補正するものである。   The steel material 5 finish-rolled by the finish rolling mill group 7 is centered by the side guide 3, restrained by the pinch roll 2, wound by the winder 1, and becomes coiled. At this time, the pinch roll 2 is leveled by a method of correcting the opening degree of the side guide 3 by the meandering amount detected by the width meter 4 or by the meandering amount detected by the meandering detector 6 installed after the finishing mill group 7. A method of adjusting is conventionally performed. In the present invention, the amount of meandering is obtained without using the width meter 4 and the meandering detector 6, and the opening degree of the side guide 3 is corrected.
図1は本発明のシステム構成図の一例である。図中、2、3および5は図1と同じであり、8はピンチロール駆動用電動機、9は駆動側開度検出器あるいは荷重検出器、10は反駆動側開度検出器あるいは荷重検出器、11は開度設定器、12は蛇行量演算器、13は位置制御器、14は駆動側シリンダ、15は反駆動側シリンダ、および16は開度補正器をそれぞれ表す。   FIG. 1 is an example of a system configuration diagram of the present invention. In the figure, 2, 3 and 5 are the same as in FIG. 1, 8 is an electric motor for driving a pinch roll, 9 is a driving side opening detector or load detector, and 10 is a counter driving side opening detector or load detector. , 11 is an opening degree setter, 12 is a meandering amount calculator, 13 is a position controller, 14 is a driving side cylinder, 15 is a counter driving side cylinder, and 16 is an opening degree corrector.
ピンチロール2の上流側直近には鋼材5のセンタリングを目的としたサイドガイド3が設置されており、このサイドガイド3は通常は鋼材5の両サイドをガイドする平行ガイド部とこの平行ガイド部の入側に所定の開き角度を持って連結された導入ガイド部とから成っている。このようにして、サイドガイド3は鋼材5の巻取機への導入ならびに鋼材5のエッジ揃えなどの巻き姿の調整を行っている。   Near the upstream side of the pinch roll 2, a side guide 3 for the purpose of centering the steel material 5 is installed. This side guide 3 usually has a parallel guide portion that guides both sides of the steel material 5, and a parallel guide portion. The inlet guide portion is connected to the entrance side with a predetermined opening angle. In this way, the side guide 3 adjusts the winding shape such as introduction of the steel material 5 into the winder and edge alignment of the steel material 5.
ピンチロール2には、駆動用のピンチロール駆動用電動機8が設置され、設置サイドを駆動側さらに反対側を反駆動側と呼び、それぞれに駆動側開度検出器あるいは荷重検出器9および反駆動側開度検出器あるいは荷重検出器10の検出器が設置されている。なお、ここでいう開度検出器は、上下ピンチロールのギャップを検出するものである。   The pinch roll 2 is provided with a driving pinch roll driving motor 8, and the installation side is called the driving side and the opposite side is called the non-driving side, and the driving side opening detector or load detector 9 and the counter driving are respectively set. A side opening detector or a load detector 10 detector is installed. The opening degree detector here detects a gap between the upper and lower pinch rolls.
蛇行量演算器12では、まずピンチロール2の幅方向の開度差あるいは荷重差を、駆動側開度検出器あるいは荷重検出器9および反駆動側開度検出器あるいは荷重検出器10で検出されたそれぞれの開度あるいは荷重から求め、この結果より蛇行量を演算する。   In the meandering amount calculator 12, first, the opening degree difference or load difference in the width direction of the pinch roll 2 is detected by the driving side opening degree detector or load detector 9 and the counter driving side opening degree detector or load detector 10. Then, the meandering amount is calculated from the result obtained from each opening degree or load.
開度補正器16では、開度設定器11からの設定値に対して蛇行量演算器12で求めた蛇行量に応じた補正量を演算し、位置制御器13に指令を出力する。位置制御器13はその指令に従って駆動側シリンダ14あるいは反駆動側シリンダ15を操作する。なお、サイドガイド3を開放しすぎることにより、巻き取った鋼材5がテレスコープ構造になるのを抑制するために、開度補正器16からの出力にはリミット値を設けるようにすると良い。   The opening degree corrector 16 calculates a correction amount corresponding to the meandering amount obtained by the meandering amount calculator 12 with respect to the set value from the opening degree setter 11, and outputs a command to the position controller 13. The position controller 13 operates the driving side cylinder 14 or the counter driving side cylinder 15 in accordance with the command. In addition, in order to suppress that the steel material 5 wound up becomes a telescope structure by opening the side guide 3 too much, it is preferable to provide a limit value for the output from the opening degree corrector 16.
本発明のシステム構成図の一例である。It is an example of the system block diagram of this invention. 熱間圧延設備の機器配置図の一例を示す図である。It is a figure which shows an example of the equipment layout of a hot rolling facility.
符号の説明Explanation of symbols
1 巻取機
2 ピンチロール
3 サイドガイド
4 幅計
5 鋼材
6 蛇行検出器
7 仕上圧延機群
8 ピンチロール駆動用電動機
9 駆動側開度検出器あるいは荷重検出器
10 反駆動側開度検出器あるいは荷重検出器
11 開度設定器
12 蛇行量演算器
13 位置制御器
14 駆動側シリンダ
15 反駆動側シリンダ
16 開度補正器
DESCRIPTION OF SYMBOLS 1 Winding machine 2 Pinch roll 3 Side guide 4 Width meter 5 Steel material 6 Meander detector 7 Finishing rolling mill group 8 Pinch roll drive motor 9 Drive side opening detector or load detector 10 Non-driving side opening detector or Load detector 11 Opening setter 12 Meander amount calculator 13 Position controller 14 Driving side cylinder 15 Counter driving side cylinder 16 Opening degree corrector

Claims (1)

  1. 仕上圧延された鋼材を巻き取る直前に設置したピンチロールの直前に設置したサイドガイドにより前記鋼材の蛇行を防止する熱間圧延設備のサイドガイド制御方法において、
    前記ピンチロールの駆動側と反駆動側の開度差または荷重差より前記鋼材の蛇行量を求め、該蛇行量に基づいて前記サイドガイドの開度を修正することを特徴とする熱間圧延設備のサイドガイド制御方法。
    In the side guide control method of the hot rolling equipment for preventing meandering of the steel material by the side guide installed just before the pinch roll installed just before winding the steel material that has been finish-rolled,
    A hot rolling facility characterized in that a meandering amount of the steel material is obtained from an opening difference or a load difference between the driving side and the non-driving side of the pinch roll, and the opening degree of the side guide is corrected based on the meandering amount. Side guide control method.
JP2005085969A 2005-03-24 2005-03-24 Side guide control method for hot rolling apparatus Pending JP2006263779A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102896180A (en) * 2011-07-29 2013-01-30 上海梅山钢铁股份有限公司 Control method of hot-rolling rolled side guide plate for improving hot-rolling roll shape quality
CN103008359A (en) * 2012-12-21 2013-04-03 鞍钢股份有限公司 Thin material threading control method for guide rulers of hot rolling coiler
CN103042040A (en) * 2013-01-20 2013-04-17 山西太钢不锈钢股份有限公司 Automatic flap controlling method of side-guide driving side of recoiling machine
CN103817170A (en) * 2014-03-05 2014-05-28 山西太钢不锈钢股份有限公司 Control method for special steel coiling side guide short stroke broken line
CN104841723A (en) * 2015-04-30 2015-08-19 山东钢铁股份有限公司 Method for controlling opening and closing of side guide plate of hot rolling strip steel reeling machine
CN106269994A (en) * 2015-05-27 2017-01-04 宝山钢铁股份有限公司 A kind of hot continuous rolling plate rolling side guide control method
WO2021098357A1 (en) * 2019-11-21 2021-05-27 宝山钢铁股份有限公司 Spark recognition-based hot-rolled coiling side guide plate control method

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102896180A (en) * 2011-07-29 2013-01-30 上海梅山钢铁股份有限公司 Control method of hot-rolling rolled side guide plate for improving hot-rolling roll shape quality
CN103008359A (en) * 2012-12-21 2013-04-03 鞍钢股份有限公司 Thin material threading control method for guide rulers of hot rolling coiler
CN103042040A (en) * 2013-01-20 2013-04-17 山西太钢不锈钢股份有限公司 Automatic flap controlling method of side-guide driving side of recoiling machine
CN103817170A (en) * 2014-03-05 2014-05-28 山西太钢不锈钢股份有限公司 Control method for special steel coiling side guide short stroke broken line
CN104841723A (en) * 2015-04-30 2015-08-19 山东钢铁股份有限公司 Method for controlling opening and closing of side guide plate of hot rolling strip steel reeling machine
CN104841723B (en) * 2015-04-30 2017-01-18 山东钢铁股份有限公司 Method for controlling opening and closing of side guide plate of hot rolling strip steel reeling machine
CN106269994A (en) * 2015-05-27 2017-01-04 宝山钢铁股份有限公司 A kind of hot continuous rolling plate rolling side guide control method
CN106269994B (en) * 2015-05-27 2017-10-31 宝山钢铁股份有限公司 A kind of hot continuous rolling plate rolling side guide control method
WO2021098357A1 (en) * 2019-11-21 2021-05-27 宝山钢铁股份有限公司 Spark recognition-based hot-rolled coiling side guide plate control method

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