JPH09225513A - Strip width controller for hot rolling mill - Google Patents
Strip width controller for hot rolling millInfo
- Publication number
- JPH09225513A JPH09225513A JP8031943A JP3194396A JPH09225513A JP H09225513 A JPH09225513 A JP H09225513A JP 8031943 A JP8031943 A JP 8031943A JP 3194396 A JP3194396 A JP 3194396A JP H09225513 A JPH09225513 A JP H09225513A
- Authority
- JP
- Japan
- Prior art keywords
- rolling
- rolling mill
- rolled material
- width
- strip width
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Control Of Metal Rolling (AREA)
- Feedback Control In General (AREA)
Abstract
(57)【要約】
【課題】 人的な介入による労力と時間の節約を可能に
すると同時に、圧延条件の変化に対して容易に対処でき
る熱間圧延機の板幅制御装置を提供する。
【解決手段】 竪型圧延機の下流に水平圧延機を有する
熱間圧延機を対象として、先行の圧延材の圧延時に、竪
型圧延前の圧延材情報、竪型圧延機及び水平圧延機の各
ロール径情報、竪型圧延後の板幅及び水平圧延後の板厚
の各実績値と、水平圧延後の板幅の実績値との関係を学
習手段(11)が学習すると、その知識に従って予測手段(1
2)が圧延材情報、ロール径情報、竪型圧延後の板幅の仮
設定値、及び水平圧延後の板厚の目標値に基づいて水平
圧延後の板幅の予測値を演算し、繰り返し演算手段(13)
が竪型圧延後の板幅を仮設定して予測手段に加えると共
に、水平圧延後の板幅の予測値と目標値との差異が零に
なるまで板幅の仮設定値を入替えて予測演算を繰り返
し、その差異が零になったときの仮設定値を後行の圧延
材に対する竪型圧延後の正規の板幅の設定値とする。
(57) Abstract: [PROBLEMS] To provide a strip width control device for a hot rolling mill that can save labor and time by human intervention and can easily cope with changes in rolling conditions. SOLUTION: For a hot rolling mill having a horizontal rolling mill downstream of the vertical rolling mill, when rolling a preceding rolled material, information of rolled material before vertical rolling, vertical rolling mill and horizontal rolling mill When the learning means (11) learns the relationship between each roll diameter information, the actual value of the strip width after vertical rolling and the strip thickness after horizontal rolling, and the actual value of the strip width after horizontal rolling, according to that knowledge. Predictor (1
2) is the rolled material information, roll diameter information, the provisional setting value of the strip width after vertical rolling, and the predicted value of the strip width after horizontal rolling based on the target value of strip thickness after horizontal rolling, and repeats. Computing means (13)
Tentatively sets the strip width after vertical rolling and adds it to the prediction means, and replaces the provisional set value of strip width until the difference between the predicted value of strip width after horizontal rolling and the target value becomes zero Repeatedly, the provisional set value when the difference becomes zero is set as the set value of the normal strip width after vertical rolling for the rolled material in the succeeding strip.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、鋼板等を圧延する
圧延機列のうち、竪型圧延機の出側の目標幅を設定する
熱間圧延機の板幅制御装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a strip width control device for a hot strip mill that sets a target width on the exit side of a vertical strip mill in a row of strip mills for rolling steel sheets and the like.
【０００２】[0002]
【従来の技術】熱間圧延においては、図６（ａ）にその
側面図を、図６（ｂ）にその平面図をそれぞれ示すよう
に、圧延材１が竪型圧延機２によって幅方向に圧延さ
れ、続いて水平圧延機３によって厚さ方向に圧延される
操作が複数回繰返され、所定の板幅、板厚にして仕上圧
延機列に送られる。通常、竪型圧延機２によって幅方向
に圧延すれば、図６（ｃ）にその拡大図を示すように、
圧延材の断面６の板幅端部が盛り上がり、いわゆる、ド
ッグボーン形状となる。2. Description of the Related Art In hot rolling, as shown in a side view of FIG. 6 (a) and a plan view of FIG. 6 (b), a strip 1 is rolled by a vertical rolling mill 2 in the width direction. The operation of rolling and subsequently rolling in the thickness direction by the horizontal rolling mill 3 is repeated a plurality of times to obtain a predetermined strip width and strip thickness, and the strips are sent to the finish rolling mill train. Normally, if the product is rolled in the width direction by the vertical rolling mill 2, as shown in its enlarged view in FIG.
The plate width end portion of the cross section 6 of the rolled material rises to form a so-called dogbone shape.
【０００３】一般に、水平圧延機３によって水平圧延を
行うと厚さが薄くなり、長手方向に伸びるが、厚さの大
きい圧延材では幅方向にも拡がる。したがって、竪型圧
延機２によって圧延して得られるドッグボーン形状の圧
延材を水平圧延機３で圧延した場合の幅拡がりは大きく
なる。Generally, when horizontal rolling is performed by the horizontal rolling mill 3, the thickness becomes thin and extends in the longitudinal direction, but in the case of a rolled material having a large thickness, it also spreads in the width direction. Therefore, when the dog-bone-shaped rolled material obtained by rolling by the vertical rolling mill 2 is rolled by the horizontal rolling mill 3, the width expansion becomes large.
【０００４】さらに、圧延後の圧延材の先端部４及び尾
端部５の幅形状は竪型圧延機２及び水平圧延機３の圧延
条件によって複雑な形状を示す。したがって、竪型圧延
後の幅を圧延材の幅を長手方向に沿って変化させること
により、すなわち、竪型圧延機２の圧延後の幅設定値７
を、図６（ｄ）に示すように、圧延材１の先端又は尾端
からの位置の関数として変化させることにより、圧延材
１の先端及び尾端を目的の幅にすることができる。圧延
材１の目的とする幅は全長に亘って任意に設定できる
が、通常は一定に設定する。Further, the width shape of the front end portion 4 and the tail end portion 5 of the rolled material after rolling has a complicated shape depending on the rolling conditions of the vertical rolling mill 2 and the horizontal rolling mill 3. Therefore, the width after vertical rolling is changed by changing the width of the rolled material along the longitudinal direction, that is, the width set value 7 after rolling of the vertical rolling mill 2.
As shown in FIG. 6 (d), by changing as a function of the position from the front end or the tail end of the rolled material 1, the front end and the tail end of the rolled material 1 can have a target width. Although the target width of the rolled material 1 can be set arbitrarily over the entire length, it is usually set to be constant.
【０００５】そして、目標の幅を持つ熱延鋼板を生産す
るためには、圧延材の先端部及び尾端部も含めて水平圧
延後の幅変形挙動を正確に把握し、ついで、幅変形挙動
を正確に予測し、竪型圧延後の幅を設定する必要があ
る。Then, in order to produce a hot-rolled steel sheet having a target width, the width deformation behavior after horizontal rolling including the leading end and the tail end of the rolled material is accurately grasped, and then the width deformation behavior is obtained. It is necessary to accurately predict and set the width after vertical rolling.
【０００６】[0006]
【発明が解決しようとする課題】竪型圧延機の出側の目
標幅を設定するに当たり、幅変形挙動の把握及び予測に
は、経験的あるいは実験的にデータを蓄積し、実験的あ
るいは統計的な手法を用いていた。このため、人的な介
入が多く、大きな労力と時間を要するという問題があっ
た。また、圧延の条件が変化した場合にはこれらのデー
タの更新に多大な作業を必要とするという問題もあっ
た。DISCLOSURE OF THE INVENTION In setting a target width on the outlet side of a vertical rolling mill, data is accumulated empirically or experimentally in order to grasp and predict the width deformation behavior, and an experimental or statistical method is used. Was used. Therefore, there is a problem that a lot of human intervention is required, which requires a lot of labor and time. Further, there is a problem that a great deal of work is required to update these data when the rolling conditions change.
【０００７】本発明は上記の問題点を解決するためにな
されたもので、人的な介入による労力と時間の節約を可
能にすると同時に、圧延条件の変化に対して容易に対処
できる熱間圧延機の板幅制御装置を提供することを目的
とする。The present invention has been made to solve the above-mentioned problems, and makes it possible to save labor and time by human intervention, and at the same time, to easily deal with changes in rolling conditions. An object of the present invention is to provide a board width control device for a machine.
【０００８】[0008]
【課題を解決するための手段】圧延材を幅方向に圧延す
る竪型圧延機と圧延材を厚さ方向に圧延する水平圧延機
とを制御対象とする場合、文献「鉄と鋼」芝原隆他著、
第253 〜259 頁に“ホットストリップ粗圧延エッジャセ
ットアップモデル”として記載されているように、竪型
圧延及び水平圧延後の幅形状は、圧延材先端あるいは尾
端からの位置、圧延前の板幅、板厚、竪型圧延機のロー
ル半径、竪型圧延後の板幅、水平圧延機のロール半径、
水平圧延後の板厚の影響を受けて決定される。[Means for Solving the Problems] When a vertical rolling mill for rolling a rolled material in the width direction and a horizontal rolling mill for rolling a rolled material in the thickness direction are to be controlled, the literature "Iron and Steel" Takashi Shibahara Other works,
As described in “Hot strip rough rolling edger setup model” on pages 253-259, the width shape after vertical rolling and horizontal rolling is the position from the tip or tail of the rolled material, the plate before rolling. Width, plate thickness, roll radius of vertical rolling mill, plate width after vertical rolling, roll radius of horizontal rolling mill,
It is determined by the influence of the plate thickness after horizontal rolling.
【０００９】また、文献「昭和54年度塑性加工春季講演
会誌」長田修次他著、第489 〜492頁に“ホットストリ
ップの幅挙動モデル化”として記載されているように、
圧延材の温度の影響を受ける。さらに、幅変形挙動が、
炭素、ニッケル、マンガン等の含有量によって決定され
る圧延材の材質にも大きく影響される。In addition, as described in "Plastic Working Spring Lectures in 1979", Shuji Nagata et al., Pp. 489-492, "Modeling of hot strip width behavior",
It is affected by the temperature of the rolled material. Furthermore, the width deformation behavior is
It is also greatly affected by the material of the rolled material, which is determined by the contents of carbon, nickel, manganese and the like.
【００１０】本発明は、圧延材を幅方向に圧延する竪型
圧延機の下流に、圧延材を厚さ方向に圧延する水平圧延
機を有する熱間圧延機を適用対象として、先行の圧延材
の圧延時に、竪型圧延前の圧延材情報、竪型圧延機及び
水平圧延機の各ロール径情報、竪型圧延後の板幅及び水
平圧延後の板厚の各実績値と、水平圧延後の板幅の実績
値との関係を学習手段が学習すると、その知識に従って
予測手段が前述の圧延材情報、ロール径情報、竪型圧延
後の板幅の仮設定値、及び水平圧延後の板厚の目標値に
基づいて水平圧延後の板幅の予測値を演算する一方、繰
り返し演算手段が予測手段に加えられる竪型圧延後の板
幅を仮設定して予測演算を実行させると共に、水平圧延
後の板幅の予測値と目標値との差異が零になるまで板幅
の仮設定値を入替えて予測演算を繰り返し、その差異が
零になったときの仮設定値を後行の圧延材に対する竪型
圧延後の正規の板幅の設定値とするようにしたもので、
これによって、幅変形挙動の学習、予測が行われると共
に、予測結果から目標の幅となるように竪型圧延後の圧
延材の幅の設定が可能となり、経験的あるいは実験的に
データの蓄積や、統計的な手法を用いていた従来装置と
比較して、人的な介入が減少して労力と時間の節約が可
能になると同時に、圧延条件の変化に対して容易に対処
できる効果がある。The present invention is applied to a hot rolling mill having a horizontal rolling mill for rolling the rolled material in the thickness direction downstream of the vertical rolling mill for rolling the rolled material in the width direction. At the time of rolling, rolled material information before vertical rolling, roll diameter information of vertical rolling mill and horizontal rolling mill, actual values of strip width after vertical rolling and strip thickness after horizontal rolling, and after horizontal rolling When the learning means learns the relationship with the actual value of the strip width, the predicting means according to the knowledge, the rolling material information, the roll diameter information, the provisional set value of the strip width after vertical rolling, and the strip after horizontal rolling. While calculating the predicted value of the plate width after horizontal rolling based on the target value of thickness, the iterative calculation means temporarily sets the plate width after vertical rolling that is added to the prediction means to execute the prediction calculation and The provisional set value of strip width is replaced until the difference between the predicted strip width after rolling and the target value becomes zero. Repeat prediction calculation Te, which was set as the set value of the normal of the plate width after vertical rolling for rolled material of the trailing temporary setting value when the difference becomes zero,
This allows learning and prediction of the width deformation behavior, and setting the width of the rolled material after vertical rolling so that the target width can be obtained from the prediction result, and data can be accumulated empirically or experimentally. As compared with the conventional apparatus that uses the statistical method, human intervention is reduced and labor and time can be saved, and at the same time, changes in rolling conditions can be easily dealt with.
【００１１】ところで、竪型圧延機と水平圧延機とを一
組として、これらの圧延機が縦列に配置される場合があ
る。このとき、竪型圧延機の上流側に配置された、いわ
ゆる、上流側水平圧延機の出側の板幅を実測し難い場
合、あるいは、実測しない場合がある。もう一つの発明
は、このことに対応したもので、上流側水平圧延前の圧
延材情報、上流側水平圧延機のロール径情報、上流側水
平圧延後の板厚の実績値と、上流側水平圧延後の板幅の
実績値との関係を学習し、この学習によって得られた知
識に従って、上流側水平圧延前の圧延材情報、上流側水
平圧延機のロール径情報、上流側水平圧延後の板厚の目
標値に基づいて上流側水平圧延後の板幅の予測値を演算
する板幅学習・予測手段を備え、この板幅学習・予測手
段による上流側水平圧延後の板幅の予測値を竪型圧延前
の圧延材情報の一部として用いるようにしたものであ
る。By the way, a vertical rolling mill and a horizontal rolling mill may be set as one set and these rolling mills may be arranged in a vertical line. At this time, it may be difficult or may not be possible to actually measure the strip width of the so-called upstream side horizontal rolling mill, which is arranged on the upstream side of the vertical rolling mill. Another invention corresponds to this, which is rolled material information before upstream horizontal rolling, roll diameter information of upstream horizontal rolling mill, actual value of plate thickness after upstream horizontal rolling, and upstream horizontal rolling. Learn the relationship with the actual value of the strip width after rolling, and according to the knowledge obtained by this learning, rolled material information before upstream horizontal rolling, roll diameter information of upstream horizontal rolling mill, after upstream horizontal rolling Equipped with a plate width learning / prediction means for calculating the predicted value of the plate width after upstream horizontal rolling based on the target value of plate thickness, and the predicted value of the plate width after upstream horizontal rolling by this plate width learning / prediction means. Is used as part of rolled material information before vertical rolling.
【００１２】他の発明は、圧延材を幅方向に圧延する竪
型圧延機の下流に、圧延材を厚さ方向に圧延する水平圧
延機を有する熱間圧延機に適用するものであって、先行
の圧延材の圧延に対して、竪型圧延前の圧延材情報、竪
型圧延機及び水平圧延機の各ロール径情報、竪型圧延後
の板幅及び水平圧延後の板厚の各実績値と、水平圧延後
の板幅の実績値との関係を学習手段が学習すると、その
知識に従って、前述の圧延材情報、ロール径情報、竪型
圧延後の板幅の目標値、及び水平圧延後の板厚の目標値
に基づいて竪型圧延後の板幅の予測値を予測手段が演算
し、その予測値を後行の圧延材に対する竪型圧延後の板
幅の設定値とするものである。Another invention is applied to a hot rolling mill having a horizontal rolling mill for rolling rolled material in the thickness direction downstream of a vertical rolling mill for rolling rolled material in the width direction, Compared to rolling of the preceding rolled material, information on rolled material before vertical rolling, roll diameter information on vertical rolling mill and horizontal rolling mill, strip width after vertical rolling and strip thickness after horizontal rolling When the learning means learns the relationship between the value and the actual value of the strip width after horizontal rolling, according to the knowledge, the rolled material information, roll diameter information, the target value of strip width after vertical rolling, and horizontal rolling Prediction means calculates the predicted value of the plate width after vertical rolling based on the target value of the subsequent plate thickness, and uses that predicted value as the set value of the plate width after vertical rolling for the rolled material in the subsequent process. Is.
【００１３】もし、竪型圧延機の上流に圧延材を厚さ方
向に圧延する上流側水平圧延機を備えており、竪型圧延
機入側の板幅を実測し難い場合、あるいは、実測しない
場合には上述したと同様の板幅学習・予測手段を備える
と良い。If an upstream horizontal rolling mill that rolls rolled material in the thickness direction is provided upstream of the vertical rolling mill, and it is difficult or impossible to actually measure the strip width on the entry side of the vertical rolling mill. In this case, it is preferable to provide the same plate width learning / prediction means as described above.
【００１４】上記の学習手段としては、人間の脳の神経
回路網を電子計算機により数学的に模したものを用いる
ことによって装置の構成が容易となる。As the learning means, the neural network of the human brain is mathematically modeled by an electronic computer to facilitate the construction of the apparatus.
【００１５】[0015]
【発明の実施の形態】以下、本発明を好適な実施形態に
基づいて詳細に説明する。図１は本発明の第１の実施形
態の構成を、適用対象圧延機と併せて示したブロック図
である。図中、従来装置を示す図６と同一の符号を付し
たものはそれぞれ同一の要素を示している。ここで、圧
延材１が竪型圧延機２によって幅方向に圧延され、続い
て水平圧延機３によって厚さ方向に圧延される。この実
施形態は水平圧延機３の出側の板幅を目標の板幅にする
ために、竪型圧延機２の出側板幅の設定値を求めるもの
で、この出側板幅の設定値による竪型圧延機２のロール
間隙の設定については、公知であるのでその説明を省略
する。図１において、学習手段11は人間の脳の神経回路
網を電子計算機により数学的に模したもので、圧延を行
った種々の圧延材に対する、圧延材の材質Ｍと、竪型圧
延機のロール半径ＶＲと、竪型圧延前の圧延材の位置、
例えば、長手方向で見る先端又は尾端からの位置Ｐ、竪
型圧延前の板幅の実績値ＶＷ、板厚の実績値ＶＨ及び温
度の実績値ＶＴと、竪型圧延後の板幅の実績値Ｖｗと、
水平圧延機のロール半径ＨＲと、水平圧延後の板厚の実
績値Ｈｈ及び水平圧延後の板幅の実績値Ｈｗを教示デー
タとして与えると、これらの関係を覚え込むものであ
る。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on preferred embodiments. FIG. 1 is a block diagram showing a configuration of a first embodiment of the present invention together with an applicable rolling mill. In the figure, the same reference numerals as those in FIG. 6 showing the conventional device indicate the same elements. Here, the rolled material 1 is rolled in the width direction by the vertical rolling mill 2 and then rolled in the thickness direction by the horizontal rolling mill 3. In this embodiment, in order to set the strip width on the delivery side of the horizontal rolling mill 3 to a target strip width, a set value of the strip side width of the vertical rolling mill 2 is obtained. The setting of the roll gap of the die rolling mill 2 is publicly known, and therefore its explanation is omitted. In FIG. 1, a learning means 11 is a computer that mathematically imitates a neural network of a human brain by means of an electronic computer. For various rolled materials that have been rolled, the material M of the rolled material and the roll of the vertical rolling mill are used. Radius VR and position of rolled material before vertical rolling,
For example, the position P from the tip or the tail end seen in the longitudinal direction, the actual value VW of the plate width before vertical rolling, the actual value VH of the plate thickness and the actual value VT of temperature, and the actual result of the plate width after vertical rolling. The value Vw,
When the roll radius HR of the horizontal rolling mill, the actual value Hh of the plate thickness after horizontal rolling, and the actual value Hw of the plate width after horizontal rolling are given as teaching data, these relationships are memorized.
【００１６】ここで、圧延材の材質Ｍ、竪型圧延機のロ
ール半径ＶＲ及び水平圧延機のロール半径ＨＲは図示省
略のデータ装置で設定される。竪型圧延前の圧延材の位
置Ｐは材料検出器等で圧延材先端あるいは尾端を検出し
た後の当該圧延機よりも上流あるいは前の圧延材速度か
ら得られる。竪型圧延前の板幅の実績値ＶＷは当該圧延
機より上流あるいは前に取付けられた板幅計測装置で計
測される。竪型圧延前の板厚の実績値ＶＨは当該圧延機
よりも上流あるいは前の水平圧延機のロール開度、圧延
荷重、圧延機の伸び率を用いる周知のゲージメータ式を
使った演算によって求められる。竪型圧延前の圧延材の
温度の実績値ＶＴは当該圧延機の上流に設置した温度計
測装置により計測される。水平圧延後の板厚の実績値Ｈ
ｈは水平圧延機３のロール開度、圧延荷重、圧延機の伸
び率を使った周知のゲージメータ式を使った演算によっ
て求められる。さらに、水平圧延後の板幅の実績値Ｈｗ
は、水平圧延機の下流あるいは後ろに設けられた板幅計
測装置により測定され、圧延材の先端又は尾端からの位
置の関数として与えられる。ここで、学習手段11は周知
のニューラルネットワークで構成され、その学習結果、
つまり、入力データ相互の関係を示すパラメータＮＡが
予測手段12に加えられる。Here, the material M of the rolled material, the roll radius VR of the vertical rolling mill and the roll radius HR of the horizontal rolling mill are set by a data device (not shown). The position P of the rolled material before the vertical rolling is obtained from the rolled material speed upstream or before the rolling mill after the rolled material tip or tail is detected by a material detector or the like. The actual value VW of the strip width before vertical rolling is measured by a strip width measuring device installed upstream or in front of the rolling mill. The actual value VH of the plate thickness before vertical rolling is obtained by calculation using a well-known gauge meter formula that uses the roll opening, rolling load, and elongation of the rolling mill of the horizontal rolling mill upstream or in front of the rolling mill. To be The actual value VT of the temperature of the rolled material before vertical rolling is measured by a temperature measuring device installed upstream of the rolling mill. Actual value H of plate thickness after horizontal rolling
h is obtained by calculation using a well-known gauge meter formula using the roll opening of the horizontal rolling mill 3, rolling load, and elongation of the rolling mill. Furthermore, the actual value Hw of the plate width after horizontal rolling
Is measured by a strip width measuring device provided downstream or behind the horizontal rolling mill, and is given as a function of the position from the leading end or the tail end of the rolled material. Here, the learning means 11 is composed of a well-known neural network, the learning result,
That is, the parameter NA indicating the mutual relation of the input data is added to the prediction means 12.
【００１７】予測手段12はこれから圧延を行う、いわゆ
る後行の圧延材に対して、その材質Ｍと、竪型圧延機の
ロール半径ＶＲと、竪型圧延前の圧延材の位置Ｐと、竪
型圧延前の板幅の実績値ＶＷと、板厚の実績値ＶＨ及び
温度の実績値ＶＴと、水平圧延機のロール半径ＨＲと、
竪型圧延後の板幅の仮設定値ＶｗE と、水平圧延後の板
厚の目標値Ｈｈref とを入力とし、学習手段11の学習過
程で得られたパラメータＮＡを用いて水平圧延後の板幅
を予測し、予測値Ｈｗest を出力するものである。The predicting means 12 performs a rolling operation on the so-called trailing rolled material, the material M thereof, the roll radius VR of the vertical rolling mill, the position P of the rolled material before vertical rolling, and the vertical rolling. The actual value VW of the plate width before die rolling, the actual value VH of the plate thickness and the actual value VT of the temperature, the roll radius HR of the horizontal rolling mill,
Using the provisional set value Vw E of the strip width after vertical rolling and the target value Hh ref of the strip thickness after horizontal rolling as inputs, the parameter NA obtained in the learning process of the learning means 11 is used to determine the value after horizontal rolling. The plate width is predicted and the predicted value Hw est is output.
【００１８】繰り返し演算手段13は比較手段31と竪型圧
延後の板幅の仮設定手段32とで構成されている。このう
ち、比較手段31は予測手段12で予測された水平圧延後の
板幅の予測値Ｈｗest を第１の入力、図示省略の設定器
で設定された水平圧延後の板幅の目標値Ｈｗref を第２
の入力としてこれらの値を比較し、両者に差異があると
きその偏差分（Ｈｗref −Ｈｗest ）を竪型圧延後の板
幅の仮設定手段32に加え、両者が一致したとき竪型圧延
後の板幅の仮設定値ＶｗE を竪型圧延後の板幅の設定値
Ｖｗset として決定するものである。竪型圧延後の板幅
の仮設定手段32は、図示省略の設定手段で設定された竪
型圧延後の板幅の全長あるいは一部分の仮の設定値Ｖｗ
E を予測手段12に加え、仮の設定値ＶｗE に対する水平
圧延後の板幅の目標値Ｈｗref と板幅の予測値Ｈｗest
と偏差分（Ｈｗref −Ｈｗest ）が零でない時、次式の
演算を行って偏差分（Ｈｗref −Ｈｗest ）が零に収束
するまで仮の設定値ＶｗE を出力すると共に、予測手段
12に予測演算を実行させる。The repetitive calculation means 13 is composed of a comparison means 31 and a temporary setting means 32 for the strip width after vertical rolling. Of these, the comparison means 31 receives the first input of the predicted value Hw est of the strip width after horizontal rolling predicted by the prediction means 12, and the target value Hw of the strip width after horizontal rolling set by the setter not shown. ref the second
These values are compared as an input of, and when there is a difference between the two, the deviation (Hw ref −Hw est ) is added to the provisional setting means 32 for the strip width after vertical rolling, and when both match, the vertical rolling is performed. The provisional set value Vw E of the subsequent strip width is determined as the set value Vw set of the strip width after vertical rolling. The provisional setting means 32 for the plate width after vertical rolling is a provisional set value Vw for the entire length or a part of the plate width after vertical rolling set by the setting means not shown.
E is added to the prediction means 12, and the target value Hw ref of the strip width after horizontal rolling and the predicted value Hw est of the strip width with respect to the provisional set value Vw E
And the deviation (Hw ref −Hw est ) is not zero, the following equation is calculated to output the provisional set value Vw E until the deviation (Hw ref −Hw est ) converges to zero, and the predicting means
Let 12 perform the prediction operation.
【００１９】 ＶｗE （ｋ＋１）＝ＶｗE （ｋ）＋α・（Ｈｗref −Ｈｗest ）…（１） ただし ＶｗE ：竪型圧延後の圧延材の全長あるいは一部分の板
幅の仮の設定値 Ｈｗref ：水平圧延後の板厚の目標値 Ｈｗest ：水平圧延後の板厚の予測値 ｋ ：繰り返し回数 α：繰り返し計算の回数を決定する演算調整のパラメー
タ である。Vw E (k + 1) = Vw E (k) + α · (Hw ref −Hw est ) (1) where Vw E : Temporary set value of the total length or part of the strip width of the rolled material after vertical rolling Hw ref : Target value of plate thickness after horizontal rolling Hw est : Predicted value of plate thickness after horizontal rolling k: Number of iterations α: Parameter for calculation adjustment that determines the number of iteration calculations.
【００２０】以上の繰り返し演算により、予測手段12で
予測された水平圧延後の板幅の予測値Ｈｗest と設定さ
れた水平圧延後の板幅の目標値Ｈｗref とが一致した段
階で、予測値Ｈｗest を竪型圧延後の板幅の設定値Ｖｗ
set として決定する。By the above iterative calculation, the prediction is made at the stage where the predicted value Hw est of the strip width after horizontal rolling predicted by the predicting means 12 and the set target value Hw ref of the strip width after horizontal rolling match. set value Vw of the values Hw est plate width after vertical rolling
Determine as a set .
【００２１】かくして、図１に示した第１の実施形態に
よれば、先行の圧延材の圧延時に、各種の圧延条件と水
平圧延後の板幅の実績値との関係を学習し、その知識に
従って竪型圧延後の板幅の仮設定値に対応する水平圧延
後の板幅の予測値を求め、さらに、この予測値と目標値
との差異が零になるまで予測演算を繰り返し、その差異
が零になったときの仮設定値を後行の圧延材に対する竪
型圧延後の正規の板幅の設定値とするようにしたので、
学習及び予測を通しての竪型圧延後の圧延材の幅の設定
が可能となり、従来装置と比較して、人的な介入が減少
して労力と時間の節約が可能になると同時に、圧延条件
の変化に対して容易に対処できる効果がある。Thus, according to the first embodiment shown in FIG. 1, at the time of rolling of the preceding rolled material, the relationship between various rolling conditions and the actual value of the strip width after horizontal rolling is learned and the knowledge is learned. According to the above, the predicted value of the strip width after horizontal rolling corresponding to the provisional setting value of the strip width after vertical rolling is obtained, and the prediction calculation is repeated until the difference between this forecast value and the target value becomes zero, and the difference Since the provisional set value when becomes zero is set as the set value of the regular strip width after vertical rolling for the rolled material in the subsequent step,
It becomes possible to set the width of the rolled material after vertical rolling through learning and prediction, which reduces human intervention and saves labor and time, and changes in rolling conditions, compared with conventional equipment. There is an effect that can be easily dealt with.
【００２２】図２は本発明の第２の実施形態の構成を、
適用対象圧延機と併せて示したブロック図である。図
中、図１と同一の要素には同一の符号を付してその説明
を省略する。この実施形態は、竪型圧延機と水平圧延機
とを一組として、これらの圧延機が縦列に配置される場
合に、竪型圧延機の上流側に配置された、いわゆる、上
流側水平圧延機の出側の板幅を実測し難い場合の構成例
であり、学習手段11及び予測手段12に加えられた竪型圧
延前の板幅の実績値ＶＷの代わりに、板幅学習・予測手
段14で予測された竪型圧延前の予測値ＶＷest が学習手
段11及び予測手段12に加えられている点が図１と構成を
異にしている。FIG. 2 shows the configuration of the second embodiment of the present invention.
It is the block diagram shown together with an applicable rolling mill. In the figure, the same elements as those of FIG. 1 are designated by the same reference numerals, and the description thereof will be omitted. This embodiment is a set of vertical rolling mill and horizontal rolling mill, when these rolling mills are arranged in a column, arranged on the upstream side of the vertical rolling mill, so-called, upstream horizontal rolling. This is a configuration example in the case where it is difficult to actually measure the strip width on the delivery side of the machine, and instead of the actual value VW of the strip width before vertical rolling added to the learning means 11 and the prediction means 12, the strip width learning / prediction means. predicted value VW est prior predicted vertical rolling in 14 that have been added to the learning means 11 and the prediction unit 12 is different in configuration as FIG.
【００２３】図３は板幅学習・予測手段14の詳細な構成
を、適用対象圧延機と併せて示したブロック図である。FIG. 3 is a block diagram showing the detailed construction of the strip width learning / prediction means 14 together with the rolling mill to which it is applied.
【００２４】ここで、圧延材１が上流側水平圧延機とし
ての水平圧延機８によって厚さ方向に圧延される。この
実施形態は水平圧延機８の出側の板幅を予測して板幅の
予測値Ｈｗest （＝ＶＷest ）を求めるものである。学
習手段21は前述したと同様に、人間の脳の神経回路網を
電子計算機により数学的に模したもので、圧延を行った
種々の圧延材に対する、圧延材の材質Ｍと、水平圧延機
のロール半径ＨＲと、水平圧延前の圧延材の位置、例え
ば、長手方向で見る先端又は尾端からの位置Ｐ、水平圧
延前の板幅の実績値ＨＷ、板厚の実績値ＨＨ及び温度の
実績値ＨＴと、水平圧延後の板厚の実績値Ｈｈと、水平
圧延後の板幅の実績値Ｈｗを教示データとして与える
と、これら関係を覚え込む。なお、学習手段21に加えら
れる教示データは前述したと同様にして設定、測定又は
計算によって得られのでその説明を省略する。Here, the rolled material 1 is rolled in the thickness direction by a horizontal rolling mill 8 as an upstream horizontal rolling mill. In this embodiment, the plate width on the exit side of the horizontal rolling mill 8 is predicted to obtain a predicted plate width value Hw est (= VW est ). The learning means 21 is, as described above, mathematically simulating the neural network of the human brain by means of an electronic computer, and for various rolled materials that have been rolled, the material M of the rolled material and the horizontal rolling mill Roll radius HR, position of rolled material before horizontal rolling, for example, position P from the tip or tail end seen in the longitudinal direction, actual value HW of plate width before horizontal rolling, actual value HH of plate thickness, and actual temperature When the value HT, the actual value Hh of the plate thickness after horizontal rolling, and the actual value Hw of the plate width after horizontal rolling are given as teaching data, these relationships are memorized. Note that the teaching data added to the learning means 21 is obtained by setting, measuring, or calculating in the same manner as described above, and therefore its explanation is omitted.
【００２５】予測手段22はこれから圧延を行う、いわゆ
る後行の圧延材にして、その材質Ｍと、水平圧延機のロ
ール半径ＨＲと、竪型圧延前の圧延材の位置Ｐと、水平
圧延前の板幅の実績値ＨＷと、板厚の実績値ＨＨ及び温
度の実績値ＨＴと、水平圧延後の板厚の目標値Ｈｈref
とを入力とし、学習手段21の学習過程で得られたパラメ
ータＮＡを用いて水平圧延後の板幅を予測し、予測値Ｈ
ｗest を出力するものである。The predicting means 22 is a so-called trailing rolled material to be rolled, and the material M thereof, the roll radius HR of the horizontal rolling mill, the position P of the rolled material before vertical rolling, and the before horizontal rolling. Actual width value HW, actual thickness value HH and actual temperature value HT, and target thickness value Hh ref after horizontal rolling
Using as input, the parameter NA obtained in the learning process of the learning means 21 is used to predict the strip width after horizontal rolling, and the predicted value H
It outputs w est .
【００２６】図３に示した板幅学習・予測手段14を設け
ることによって、竪型圧延機２の入側の板幅を実測し難
い場合でも、実績値ＶＷと同様の板幅の予測値ＶＷest
を学習手段11及び予測手段12に加えることができ、人的
な介入が減少して労力と時間の節約が可能になると同時
に、圧延条件の変化に対して容易に対処できる効果があ
る。By providing the strip width learning / prediction means 14 shown in FIG. 3, even if it is difficult to actually measure the strip width on the entry side of the vertical rolling mill 2, the predicted value VW of the strip width similar to the actual value VW is obtained. est
Can be added to the learning means 11 and the prediction means 12, so that human intervention can be reduced and labor and time can be saved, and at the same time, it is possible to easily cope with changes in rolling conditions.
【００２７】図４は本発明の第３の実施形態の構成を、
適用対象圧延機と併せて示したブロック図であり、圧延
材１が竪型圧延機２によって幅方向に圧延され、続いて
水平圧延機３によって厚さ方向に圧延されるとき、水平
圧延機３の出側の板幅を目標の板幅にするために、竪型
圧延機２の出側板幅の設定値を求めるものである。FIG. 4 shows the configuration of the third embodiment of the present invention.
It is the block diagram shown together with the applicable rolling mill, and when the rolled material 1 is rolled in the width direction by the vertical rolling mill 2 and subsequently rolled in the thickness direction by the horizontal rolling mill 3, the horizontal rolling mill 3 The set value of the output side strip width of the vertical rolling mill 2 is obtained in order to make the output side strip width of the target strip width.
【００２８】ここで、学習手段15は前述したと同様、人
間の脳の神経回路網を電子計算機により数学的に模した
もので、圧延を行った種々の圧延材に対する、圧延材の
材質Ｍと、竪型圧延機のロール半径ＶＲと、竪型圧延前
の圧延材の位置Ｐと、竪型圧延前の板幅の実績値ＶＷ、
板厚の実績値ＶＨ及び温度の実績値ＶＴと、水平圧延機
のロール半径ＨＲと、水平圧延後の板幅の実績値Ｈｗ及
び水平圧延後の板厚の実績値Ｈｈと、竪型圧延後の板幅
の実績値Ｖｗとを教示データとして与えると、これら関
係を覚え込む。なお、学習手段15に加えられる教示デー
タは前述したと同様にして設定、測定又は計算により求
めることができるのでその説明を省略する。Here, the learning means 15 is, as described above, a mathematical model of the neural network of the human brain by means of an electronic computer. , The roll radius VR of the vertical rolling mill, the position P of the rolled material before vertical rolling, the actual value VW of the plate width before vertical rolling,
Actual value VH of plate thickness and actual value VT of temperature, roll radius HR of horizontal rolling mill, actual value Hw of plate width after horizontal rolling and actual value Hh of plate thickness after horizontal rolling, and after vertical rolling If the actual value Vw of the board width of is given as teaching data, these relationships are memorized. The teaching data added to the learning means 15 can be obtained by setting, measuring, or calculating in the same manner as described above, and thus the description thereof will be omitted.
【００２９】予測手段16はこれから圧延を行う、いわゆ
る後行の圧延材にして、その材質Ｍと、竪型圧延機のロ
ール半径ＶＲと、竪型圧延前の圧延材の位置Ｐと、竪型
圧延前の板幅の実績値ＶＷと、板厚の実績値ＶＨ及び温
度の実績値ＶＴと、水平圧延機のロール半径ＨＲと、水
平圧延後の板厚の目標値Ｈｗref と、水平圧延後の板厚
の目標値Ｈｈref とを入力とし、学習手段15の学習過程
で得られたパラメータＮＡを用いて竪型圧延後の板幅を
予測し、予測値Ｈｗest を出力するものである。The predicting means 16 makes a so-called trailing rolled material to be rolled from now on, and its material M, the roll radius VR of the vertical rolling mill, the position P of the rolled material before vertical rolling, and the vertical type. Actual value of plate width before rolling VW, actual value of plate thickness VH and actual value of temperature VT, roll radius HR of horizontal rolling mill, target value Hw ref of plate thickness after horizontal rolling, and after horizontal rolling With the target value Hh ref of the plate thickness as input, the plate width after vertical rolling is predicted using the parameter NA obtained in the learning process of the learning means 15, and the predicted value Hw est is output.
【００３０】演算手段17は水平圧延機３による水平圧延
後の板幅の目標値Ｈｗref を出力した段階で得られた竪
型圧延後の板幅の予測値Ｖｗest をそのまま竪型圧延機
２による竪型圧延後の板幅の設定値Ｖｗset に決定する
ものである。The computing means 17 uses the predicted value Vw est of the strip width after vertical rolling obtained at the stage of outputting the target value Hw ref of the strip width after horizontal rolling by the horizontal rolling mill 3 as it is. The set value Vw set of the strip width after vertical rolling according to is determined.
【００３１】この実施形態は、学習手段15の学習による
知識に従って、竪型圧延後の板幅を除いた条件を設定
し、竪型圧延後の板幅の予測値Ｖｗest を設定値Ｖｗ
set に決定するものであるため、前述の繰り返し演算が
不要化され、その分だけ構成が簡易化される。In this embodiment, conditions excluding the strip width after vertical rolling are set according to the knowledge learned by the learning means 15, and the predicted value Vw est of the strip width after vertical rolling is set to Vw.
Since it is determined to be a set , the above-mentioned repeated calculation becomes unnecessary, and the configuration is simplified accordingly.
【００３２】図５は本発明の第４の実施形態の構成を、
適用対象圧延機と併せて示したブロック図である。図
中、図４と同一の要素には同一の符号を付してその説明
を省略する。この実施形態は、竪型圧延機と水平圧延機
とを一組として、これらの圧延機が縦列に配置される場
合に、竪型圧延機の上流側に配置された、いわゆる、上
流側水平圧延機の出側の板幅を実測し難い場合の構成例
であり、学習手段15及び予測手段16に加えられた竪型圧
延前の板幅の実績値ＶＷの代わりに、板幅学習・予測手
段14で予測された竪型圧延前の予測値ＶＷest が学習手
段15及び予測手段16に加えられている点が図４と構成を
異にしている。なお、板幅学習・予測手段14の構成、及
びその動作は図３を用いて説明したと全く同様であるの
でその説明を省略する。FIG. 5 shows the configuration of the fourth embodiment of the present invention.
It is the block diagram shown together with an applicable rolling mill. In the figure, the same elements as those in FIG. 4 are denoted by the same reference numerals, and description thereof will be omitted. This embodiment is a set of vertical rolling mill and horizontal rolling mill, when these rolling mills are arranged in a column, arranged on the upstream side of the vertical rolling mill, so-called, upstream horizontal rolling. This is a configuration example in the case where it is difficult to measure the strip width on the delivery side of the machine, and instead of the actual value VW of the strip width before vertical rolling added to the learning unit 15 and the prediction unit 16, the strip width learning / prediction unit. The configuration differs from that in FIG. 4 in that the predicted value VW est before vertical rolling predicted in 14 is added to the learning means 15 and the prediction means 16. The configuration of the plate width learning / prediction means 14 and its operation are exactly the same as those described with reference to FIG.
【００３３】かくして、竪型圧延機２の入側の板幅を実
測し難い場合でも、実績値ＶＷと同様の板幅の予測値Ｖ
Ｗest を学習手段11及び予測手段12に加えることがで
き、これによって、人的な介入が減少して労力と時間の
節約が可能になると同時に、圧延条件の変化に対して容
易に対処できる効果がある。Thus, even when it is difficult to actually measure the strip width on the entry side of the vertical rolling mill 2, the predicted value V of the strip width similar to the actual value VW is obtained.
W est can be added to the learning means 11 and the prediction means 12, thereby reducing human intervention and saving labor and time, and at the same time, being able to easily cope with changes in rolling conditions. There is.
【００３４】[0034]
【発明の効果】以上の説明によって明らかなように、本
発明によれば、学習手段が学習した知識に従って水平圧
延後の板幅の予測値を演算する一方、この予測値と目標
値との差異が零になるまで竪型圧延後の板幅の仮設定値
を入替えて予測演算を繰り返し、その差異が零になった
ときの仮設定値を後行の圧延材に対する竪型圧延後の正
規の板幅の設定値としているので、経験的あるいは実験
的なデータの蓄積や、統計的な手法を用いていた従来装
置と比較して、人的な介入が減少して労力と時間の節約
が可能になると同時に、圧延条件の変化に対して容易に
対処できる効果がある。As is apparent from the above description, according to the present invention, the predicted value of the strip width after horizontal rolling is calculated according to the knowledge learned by the learning means, while the difference between the predicted value and the target value is calculated. Repeat the prediction calculation by replacing the provisional set value of the strip width after vertical rolling until the value becomes zero, and set the provisional set value when the difference becomes zero to the regular value after vertical rolling for the rolled material in the succeeding strip. Since the plate width is set, it is possible to save labor and time by reducing human intervention compared with the conventional device that used empirical or experimental data accumulation and statistical methods. At the same time, there is an effect that changes in rolling conditions can be easily dealt with.
【００３５】また、竪型圧延機の入側板幅、すなわち、
竪型圧延機の前段に配置された水平圧延機の出側の板幅
を実測し難い場合、あるいは、実測しない場合には、上
流側水平圧延後の板幅を学習・予測する板幅学習・予測
手段を設けることによって、上述したと同様な効果が得
られる。Further, the entrance side plate width of the vertical rolling mill, that is,
If it is difficult to actually measure the strip width on the exit side of the horizontal rolling mill arranged in the preceding stage of the vertical rolling mill, or if it is not measured, the strip width learning / prediction for learning / predicting the strip width after upstream horizontal rolling By providing the prediction means, the same effect as described above can be obtained.
【００３６】また、他の発明によれば、学習予測した竪
型圧延後の板幅の予測値を後行の圧延材に対する竪型圧
延後の板幅の設定値とすることにより、繰り返し演算が
不要化される利点がある。According to another aspect of the invention, the iterative calculation is performed by setting the learned and predicted predicted value of the strip width after the vertical rolling as the set value of the strip width after the vertical rolling for the rolled material in the succeeding sheet. There is an advantage that it becomes unnecessary.
【００３７】さらに、学習手段として、人間の脳の神経
回路網を電子計算機により数学的に模したものを用いる
ことによって装置の構成が容易となる。Further, by using, as the learning means, a neural network of the human brain mathematically modeled by an electronic computer, the configuration of the apparatus becomes easy.
【図１】本発明の第１の実施形態の構成を、適用対象圧
延機と併せて示したブロック図。FIG. 1 is a block diagram showing a configuration of a first embodiment of the present invention, together with a rolling mill to be applied.
【図２】本発明の第２の実施形態の構成を、適用対象圧
延機と併せて示したブロック図。FIG. 2 is a block diagram showing a configuration of a second embodiment of the present invention together with a rolling mill to be applied.
【図３】図２に示した板幅学習・予測手段の詳細な構成
を、適用対象圧延機と併せて示したブロック図。FIG. 3 is a block diagram showing a detailed configuration of the strip width learning / prediction means shown in FIG. 2 together with an applicable rolling mill.
【図４】本発明の第３の実施形態の構成を、適用対象圧
延機と併せて示したブロック図。FIG. 4 is a block diagram showing a configuration of a third embodiment of the present invention together with an applicable rolling mill.
【図５】本発明の第４の実施形態の構成を、適用対象圧
延機と併せて示したブロック図。FIG. 5 is a block diagram showing a configuration of a fourth embodiment of the present invention together with an applicable rolling mill.
【図６】竪型圧延機と水平圧延機とを一組として、これ
らの圧延機が縦列に配置される場合の圧延形状を説明す
るための説明図。FIG. 6 is an explanatory view for explaining a rolling shape when a vertical rolling mill and a horizontal rolling mill are set as one set and these rolling mills are arranged in a column.
１ 圧延材 ２ 竪型圧延機 ３，８ 水平圧延機 １１，１５，２１ 学習手段 １２，１６，２２ 予測手段 １３ 繰り返し演算手段 １４ 板幅学習・予測手段 １７ 演算手段 ３１ 比較手段 ３２ 竪型圧延後の板幅の仮設定手段 DESCRIPTION OF SYMBOLS 1 Rolled material 2 Vertical rolling mill 3,8 Horizontal rolling mill 11, 15, 21 Learning means 12, 16, 22 Prediction means 13 Iterative calculation means 14 Sheet width learning / prediction means 17 Calculation means 31 Comparison means 32 After vertical rolling Temporary setting means for board width
Claims (7)
その下流にて圧延材を厚さ方向に圧延する水平圧延機と
が組として配置された熱間圧延機の板幅制御装置であっ
て、 竪型圧延前の圧延材情報、前記竪型圧延機及び水平圧延
機の各ロール径情報、竪型圧延後の板幅及び水平圧延後
の板厚の各実績値と、水平圧延後の板幅の実績値との関
係を学習する学習手段と、 前記学習手段によって得られた知識に従って、前記圧延
材情報、前記ロール径情報、竪型圧延後の板幅の仮設定
値、及び水平圧延後の板厚の目標値に基づいて水平圧延
後の板幅の予測値を演算する予測手段と、 前記予測手段に加えられる情報のうち、竪型圧延後の板
幅を仮設定して前記予測手段に予測演算を実行させると
共に、水平圧延後の板幅の予測値と目標値との差異が零
になるまで前記板幅の仮設定値を入替えて予測演算を繰
り返し実行させ、水平圧延後の板幅の予測値と目標値と
の差異が零になったときの前記仮設定値を竪型圧延後の
正規の板幅の設定値とする繰り返し演算手段と、 を備えた熱間圧延機の板幅制御装置。1. A vertical rolling mill for rolling a rolled material in the width direction,
A strip width control device for a hot rolling mill, in which a horizontal rolling mill that rolls rolled material in the thickness direction is arranged as a set downstream thereof, which is rolled material information before vertical rolling, the vertical rolling mill. And each roll diameter information of the horizontal rolling mill, each actual value of the strip width after vertical rolling and the strip thickness after horizontal rolling, and learning means for learning the relationship between the actual value of the strip width after horizontal rolling, and According to the knowledge obtained by the learning means, the rolled material information, the roll diameter information, the provisional setting value of the strip width after vertical rolling, and the strip width after horizontal rolling based on the target value of strip thickness after horizontal rolling Prediction means for calculating the prediction value of, of the information added to the prediction means, while performing the prediction calculation to the prediction means by temporarily setting the strip width after vertical rolling, of the strip width after horizontal rolling The provisional setting value of the plate width is replaced until the difference between the predicted value and the target value becomes zero, and the prediction calculation is performed. Iterative operation means for rerunning, and the provisional set value when the difference between the predicted value of the strip width after horizontal rolling and the target value becomes zero is the set value of the regular strip width after vertical rolling, and And a strip width control device for a hot rolling mill.
延前の圧延材の先端又は尾端からの位置、板幅、板厚及
び温度の各実績値であり、 前記水平圧延後の板幅は、圧延材の先端又は尾端よりの
位置の関数とするものである、請求項１に記載の熱間圧
延機の板幅制御装置。2. The rolled material information is the actual value of the material of the rolled material, the position from the tip or tail end of the rolled material before vertical rolling, the strip width, the strip thickness and the temperature, and after the horizontal rolling. 2. The strip width control device for a hot rolling mill according to claim 1, wherein the strip width is a function of the position from the tip or the tail end of the rolled material.
に圧延する上流側水平圧延機を備えるとき、 上流側水平圧延前の圧延材情報、前記上流側水平圧延機
のロール径情報、上流側水平圧延後の板厚の実績値と、
上流側水平圧延後の板幅の実績値との関係を学習し、こ
の学習によって得られた知識に従って、前記上流側水平
圧延前の圧延材情報、前記上流側水平圧延機のロール径
情報、上流側水平圧延後の板厚の目標値に基づいて上流
側水平圧延後の板幅の予測値を演算する板幅学習・予測
手段を備え、この板幅学習・予測手段による上流側水平
圧延後の板幅の予測値を前記竪型圧延前の圧延材情報の
一部として用いる請求項１に記載の熱間圧延機の板幅制
御装置。3. When an upstream horizontal rolling mill for rolling rolled material in the thickness direction is provided upstream of the vertical rolling mill, rolling material information before upstream horizontal rolling, roll diameter of the upstream horizontal rolling mill Information, actual value of plate thickness after horizontal rolling on the upstream side,
Learning the relationship with the actual value of the plate width after upstream horizontal rolling, according to the knowledge obtained by this learning, rolled material information before the upstream horizontal rolling, roll diameter information of the upstream horizontal rolling mill, upstream It is equipped with strip width learning / prediction means for calculating a forecast value of strip width after upstream side horizontal rolling based on the target value of strip thickness after side horizontal rolling. The plate width control device for a hot rolling mill according to claim 1, wherein the predicted value of the plate width is used as part of the rolled material information before the vertical rolling.
その下流にて圧延材を厚さ方向に圧延する水平圧延機と
が組として配置された熱間圧延機の板幅制御装置であっ
て、 竪型圧延前の圧延材情報、前記竪型圧延機及び水平圧延
機の各ロール径情報、竪型圧延後の板幅及び水平圧延後
の板厚の各実績値と、水平圧延後の板幅の実績値との関
係を学習する学習手段と、 前記学習手段によって得られた知識に従って、前記圧延
材情報、前記ロール径情報、竪型圧延後の板幅の目標
値、及び水平圧延後の板厚の目標値に基づいて竪型圧延
後の板幅の予測値を演算する予測手段と、 前記予測手段による竪型圧延後の板幅の予測値を、竪型
圧延後の板幅の設定値とする演算手段と、 を備えた熱間圧延機の板幅制御装置。4. A vertical rolling mill for rolling a rolled material in the width direction,
A strip width control device for a hot rolling mill, in which a horizontal rolling mill that rolls rolled material in the thickness direction is arranged as a set downstream thereof, which is rolled material information before vertical rolling, the vertical rolling mill. And each roll diameter information of the horizontal rolling mill, each actual value of the strip width after vertical rolling and the strip thickness after horizontal rolling, and learning means for learning the relationship between the actual value of the strip width after horizontal rolling, and According to the knowledge obtained by the learning means, the rolled material information, the roll diameter information, the target value of the plate width after vertical rolling, and the target value of the plate thickness after horizontal rolling, the plate width after vertical rolling Prediction means for calculating the predicted value of, and the prediction value of the strip width after vertical rolling by the prediction means, the calculation means for setting the set value of the strip width after vertical rolling, of a hot rolling mill comprising: Board width control device.
延前の圧延材の先端又は尾端からの位置、板幅、板厚及
び温度の各実績値であり、 前記水平圧延後の板幅は、圧延材の先端又は尾端よりの
位置の関数とするものである、請求項４に記載の熱間圧
延機の板幅制御装置。5. The rolled material information is the actual value of the material of the rolled material, the position from the tip or tail end of the rolled material before vertical rolling, the strip width, the strip thickness and the temperature, and after the horizontal rolling. The sheet width control device for a hot rolling mill according to claim 4, wherein the sheet width is a function of the position from the tip or the tail end of the rolled material.
に圧延する上流側水平圧延機を備えるとき、 上流側水平圧延前の圧延材情報、前記上流側水平圧延機
のロール径情報、上流側水平圧延後の板厚の実績値と、
上流側水平圧延後の板幅の実績値との関係を学習し、こ
の学習によって得られた知識に従って、前記上流側水平
圧延前の圧延材情報、前記上流側水平圧延機のロール径
情報、上流側水平圧延後の板厚の目標値に基づいて上流
側水平圧延後の板幅の予測値を演算する板幅学習・予測
手段を備え、この板幅学習・予測手段による上流側水平
圧延後の板幅の予測値を前記竪型圧延前の圧延材情報の
一部として用いる請求項４に記載の熱間圧延機の板幅制
御装置。6. When an upstream horizontal rolling mill that rolls rolled material in the thickness direction is provided upstream of the vertical rolling mill, rolling material information before upstream horizontal rolling, roll diameter of the upstream horizontal rolling mill Information, actual value of plate thickness after horizontal rolling on the upstream side,
Learning the relationship with the actual value of the plate width after upstream horizontal rolling, according to the knowledge obtained by this learning, rolled material information before the upstream horizontal rolling, roll diameter information of the upstream horizontal rolling mill, upstream It is equipped with strip width learning / prediction means for calculating a forecast value of strip width after upstream side horizontal rolling based on the target value of strip thickness after side horizontal rolling. The plate width control device for a hot rolling mill according to claim 4, wherein the predicted value of the plate width is used as a part of the rolled material information before the vertical rolling.
路網を電子計算機により数学的に模したものである請求
項１乃至６のいずれかに記載の熱間圧延機の板幅制御装
置。7. The strip width control device for a hot rolling mill according to claim 1, wherein each of the learning means mathematically simulates a neural network of a human brain by an electronic computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03194396A JP3260616B2 (en) | 1996-02-20 | 1996-02-20 | Strip width control device for hot rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03194396A JP3260616B2 (en) | 1996-02-20 | 1996-02-20 | Strip width control device for hot rolling mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09225513A true JPH09225513A (en) | 1997-09-02 |
| JP3260616B2 JP3260616B2 (en) | 2002-02-25 |
Family
ID=12345056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP03194396A Expired - Lifetime JP3260616B2 (en) | 1996-02-20 | 1996-02-20 | Strip width control device for hot rolling mill |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3260616B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024135050A1 (en) | 2022-12-19 | 2024-06-27 | Ｊｆｅスチール株式会社 | Method for predicting width of rough-rolled material, method for controlling width of rough-rolled material, method for producing hot-rolled steel sheet, and method for generating width prediction model for rough-rolled material |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102365134B (en) * | 2009-03-26 | 2014-02-19 | 东芝三菱电机产业系统株式会社 | Reference position adjustment and monitoring device |
| WO2024105996A1 (en) | 2022-11-15 | 2024-05-23 | Ｊｆｅスチール株式会社 | Method for predicting width of rough rolled material, method for controlling width of rough rolled material, method for producing hot-rolled steel sheet, and method for generating width prediction model for rough rolled material |
-
1996
- 1996-02-20 JP JP03194396A patent/JP3260616B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024135050A1 (en) | 2022-12-19 | 2024-06-27 | Ｊｆｅスチール株式会社 | Method for predicting width of rough-rolled material, method for controlling width of rough-rolled material, method for producing hot-rolled steel sheet, and method for generating width prediction model for rough-rolled material |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3260616B2 (en) | 2002-02-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1675694B1 (en) | Method and control device for operating a mill train for metal strip | |
| JP4685777B2 (en) | Wedge setting and control method in sheet metal rolling | |
| CN101590489A (en) | Strip Width Control Device and Control Method for Hot Rolling Mill | |
| CN112949108A (en) | Hot-rolled high-strength steel plate shape defect full-flow prediction method and graphical user interface | |
| JP3330758B2 (en) | Method and apparatus for controlling a process in a regulated system | |
| CN112839746B (en) | Fold generation prediction system | |
| KR100365096B1 (en) | Apparatus for controlling a rolling mill based on a strip crown of a strip and the same | |
| JP3260616B2 (en) | Strip width control device for hot rolling mill | |
| EP1711283B1 (en) | Control method and control device for a roll stand | |
| KR100641755B1 (en) | Finish rolling width margin control device and method | |
| JP3067879B2 (en) | Shape control method in strip rolling | |
| JP2968637B2 (en) | Strip width control method in hot rolling | |
| JP2755893B2 (en) | Rolling control method and apparatus | |
| Kim et al. | Sensitivity analysis on a neural network for analyzing the camber in hot rolling process | |
| KR100384121B1 (en) | Shape Control Method of Cold Rolled Steel Sheet Using Neural Network | |
| JP3403330B2 (en) | Strip width control method in hot rolling | |
| JPH05119807A (en) | Identification method of control model in continuous rolling mill and control method of continuous rolling mill | |
| KR100293222B1 (en) | Rolling load prediction method using fuzzy theory | |
| JPH0631324A (en) | Strip width control method in hot rolling | |
| JP2000126809A (en) | Set up device of rolling mill | |
| JP3300202B2 (en) | Rolling force control method in temper rolling of steel strip | |
| JPS6376709A (en) | Width control method for tandem rolling mill | |
| JPH0732019A (en) | Strip width control method in hot rolling | |
| JPH11104720A (en) | Setup equipment of rolling mill | |
| JP3541596B2 (en) | Thickness control method of sheet material in continuous tandem rolling mill |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313111 |
|
| S631 | Written request for registration of reclamation of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313631 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313111 |
|
| R371 | Transfer withdrawn |
Free format text: JAPANESE INTERMEDIATE CODE: R371 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313111 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20071214 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20081214 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091214 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091214 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20101214 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20101214 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20111214 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20111214 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20121214 Year of fee payment: 11 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20121214 Year of fee payment: 11 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20131214 Year of fee payment: 12 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term |