JPS5890308A - Method and device for controlling shape of rolled material - Google Patents
Method and device for controlling shape of rolled materialInfo
- Publication number
- JPS5890308A JPS5890308A JP56188741A JP18874181A JPS5890308A JP S5890308 A JPS5890308 A JP S5890308A JP 56188741 A JP56188741 A JP 56188741A JP 18874181 A JP18874181 A JP 18874181A JP S5890308 A JPS5890308 A JP S5890308A
- Authority
- JP
- Japan
- Prior art keywords
- shape
- rolls
- rolled material
- fourier series
- roll
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
- B21B37/30—Control of flatness or profile during rolling of strip, sheets or plates using roll camber control
- B21B37/34—Control of flatness or profile during rolling of strip, sheets or plates using roll camber control by hydraulic expansion of the rolls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2269/00—Roll bending or shifting
- B21B2269/02—Roll bending; vertical bending of rolls
- B21B2269/04—Work roll bending
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、圧延機で圧延された圧延材に生ずる皺や歪を
除去し、圧延材の形状を４ラツトにする圧延□材の形状
制御方法及び装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method and apparatus for controlling the shape of a rolled square material by removing wrinkles and distortions that occur in a rolled material rolled by a rolling mill and making the shape of the rolled material four-rat.
圧延材の幅方向の形状をフラットにすることは製品の品
質を決定する上で非常に重要な要因であり、このため圧
延材の形状ｔｉ制御装置力；種々考えられている。Making the shape of the rolled material flat in the width direction is a very important factor in determining the quality of the product, and for this reason, various methods have been considered to control the shape of the rolled material.
形状制御装置としては、例えば従来の４段圧延機では、
作業ロールベンディング装置とクーラントのゾーンコン
トロールを組合せたもの力；あるが、該装置では板形状
のクォーター波の市制御は困難であった〇
一方、近年控ロールのスリーブ゛とアーノ（−間に圧油
を供給してスリーブを膨張させ、これによって作業ロー
ルを制御することにより圧延材の形状を修正する通称可
変クラウンロールカ；開発された。従って該可変クラウ
ンロールと作業ロールベンディング装置とを組合せてそ
の各々のロールプロフィールの違いを利用し、クォータ
ーバックルの制御ができる見通しが出てきた。As a shape control device, for example, in a conventional 4-high rolling mill,
Although there is a combination of work roll bending equipment and coolant zone control, it is difficult to control plate-shaped quarter waves with this equipment.On the other hand, in recent years, there has been a A so-called variable crown roll machine has been developed that modifies the shape of the rolled material by supplying pressure oil to expand the sleeve and thereby controlling the work roll.Therefore, the variable crown roll and work roll bending device are combined. The prospect of being able to control the quarterback by taking advantage of the differences in their respective role profiles has emerged.
しかし、従来は可変クラウンロールと作業ロールベンデ
ィング装置を組合せて自動的に制御を行うことは、理論
的には勿論のこと実際的にも不可能であり、実用化には
至っていないのが現実であった。However, in the past, it was theoretically and practically impossible to perform automatic control by combining a variable crown roll and a work roll bending device, and the reality is that it has not been put to practical use. there were.
本発明は上記観点に鑑み、圧延材にクォーターバックル
が発生しないようにして圧延材の形状をフラットにし得
る圧延材の形状制御方法及びその装置を提供することを
目的としてなしたもので、形状検出器で検出した圧延材
の形状信号をフーリエ級数展開し、そのフーリエ級数の
第１調波分で圧延材の単純波形状を修正し、第１調波分
及び第２調波分で圧延材の複合波形状を修正することを
特徴とするものである。The present invention has been made in view of the above-mentioned points of view, and is aimed at providing a shape control method and apparatus for a rolled material that can flatten the shape of the rolled material by preventing the occurrence of quarter buckles in the rolled material. The shape signal of the rolled material detected by the device is expanded into a Fourier series, the simple wave shape of the rolled material is corrected using the first harmonic component of the Fourier series, and the shape signal of the rolled material is modified using the first harmonic component and the second harmonic component. This method is characterized by modifying the complex wave shape.
以下、本発明の実施例を図面を参照しつつ説明する。Embodiments of the present invention will be described below with reference to the drawings.
第１図中（１）は圧延機で、１対の作業ロール（２）（
３）及び該作業ロール（２１（３１の上下に配設された
１対の控ロール（４１（５１を有し、該圧延機＋１）で
は圧延板（Ｓ）を矢印方向に走行させることにより圧延
を行うようになっている。上記控ロール＋４） ｆ５）
は、第２図に示すごとくスリーブ（６）とアーパー（７
）間に油圧室（８）を有し、アーバー（７）に穿設した
導孔（９）から油圧室−（８）に圧油を供給することに
よりスリーブ（６）を膨張させ得るようになっている。In Figure 1, (1) is a rolling mill with a pair of work rolls (2) (
3) and the work roll (21 (31) and a pair of backing rolls (41 (51), the rolling mill +1) roll the rolling plate (S) by running it in the direction of the arrow. The above counter roll +4) f5)
The sleeve (6) and aperture (7) are attached as shown in Figure 2.
) has a hydraulic chamber (8) between them, and the sleeve (6) can be expanded by supplying pressure oil to the hydraulic chamber (8) from a guide hole (9) bored in the arbor (7). It has become.
圧延材（Ｓ）の形状を検出する形状検出器０１を圧延機
（１）の出側に配設すると共に圧延材（Ｓ）の圧延後の
形状を設定する形状設定器αυを配設し、形状検出器α
１及び形状設定器ａυよりの信号をもとに偏差演算器（
２）において検出された形状信号と設定された形状信号
の偏差を検出し得るよ、うにし、偏差演算器（６）より
の信号をロールクーラント制御装置（至）に入力し得る
ようにすると共に偏差演算器（２）よ・−りの信号をフ
ーリエ級数展開装置α４によってフーリエ級数展開し、
その第１調波の余弦項の係数データを控ロール圧力制御
装置（至）に入力し得るようにし、第２調波の余弦項の
係数データを前記控ロール圧力制御装置（至）と作業ロ
ールベンディング制御装置ａゆに入力し得るようにする
。A shape detector 01 for detecting the shape of the rolled material (S) is disposed on the exit side of the rolling mill (1), and a shape setting device αυ is disposed for setting the shape of the rolled material (S) after rolling, Shape detector α
1 and the signal from the shape setter aυ, the deviation calculator (
The deviation between the shape signal detected in step 2) and the set shape signal can be detected, and the signal from the deviation calculator (6) can be input to the roll coolant control device (to). The signal from the deviation calculator (2) is expanded into a Fourier series by the Fourier series expansion device α4,
The coefficient data of the cosine term of the first harmonic can be input to the backing roll pressure control device (to), and the coefficient data of the cosine term of the second harmonic can be input to the backing roll pressure control device (to) and the work roll. The data can be input to the bending control device ayu.
前記控ロール圧力制御装置（至）は前記第１調波の余弦
項の係数データ及び第２調波の余弦項の係数データに応
じて、控ロール（４１（５１の油圧室（８）へ供給する
圧油の圧力を設定するものであり、作業ロールベンディ
ング制御装置αＱは前記第２調波の余弦項の係数データ
に応じて調節すべきペンディング力を作業ロールベンデ
ィング装置θηに設定するものであシ、ロールクーラン
ト制御装置（至）は偏差演算器（イ）からのデータに応
じてロールクーラント装置（至）より噴射される流体の
量や圧力を制御するためのものである。The backing roll pressure control device (to) supplies the pressure to the hydraulic chamber (8) of the backing roll (41 (51)) according to the coefficient data of the cosine term of the first harmonic and the coefficient data of the cosine term of the second harmonic. The work roll bending control device αQ sets the pending force to be adjusted in the work roll bending device θη according to the coefficient data of the cosine term of the second harmonic. B. The roll coolant control device (to) is for controlling the amount and pressure of fluid injected from the roll coolant device (to) according to data from the deviation calculator (b).
前記控ロール圧力制御装置（ト）及び作業ロールベンデ
ィング制御装置［相］は、前記フーリエ級数展開装置ａ
４の出力が最小になる方向、すなわちフーリエ級数展開
された各調波の余弦項の係数データが最小になる方向へ
前記圧延機（１）の作業ロール＋４１ （５１を制御す
るようになっている。The backup roll pressure control device (g) and the work roll bending control device [phase] are the Fourier series expansion device a
The work roll +41 (51) of the rolling mill (1) is controlled in the direction in which the output of 4 is minimized, that is, in the direction in which the coefficient data of the cosine term of each harmonic expanded in the Fourier series is minimized. .
このような構成において、形状検出器ｏｎでサンプリン
グされた圧延板（Ｓ）の幅方向の形状検出信号の数がＮ
個あり、該信号をｆ（旬とすると、で表わされる。そし
て、ＡＫ％ＢＫ％ＡいＡＮ Ｋついてはそれぞれ
（Ｋ＝０．１．・・・Ｎ）
（Ｋ＝１．２．・・・Ｎ−１）
で表わされる。In such a configuration, the number of shape detection signals in the width direction of the rolled plate (S) sampled by the shape detector on is N.
If the signal is f (season), it is expressed as AK%BK%AANK, respectively (K=0.1...N) (K=1.2... N-1).
第１調波の余弦項Ａｌは形状の単純波の大小方向を示し
、ＡＩが最小となるよう控ロール圧力側（至）を操作す
る。作業ロールの胴長胴径比が大きいときは、可変クラ
ウンロールが通常良好な板形状を得るカーブを示すので
、控ロール（４） ｆ５１の圧力を調節してＡｌが零に
なるようにする。これにより圧延板°（Ｓ）の形状が良
くなる。しかし。The cosine term Al of the first harmonic indicates the magnitude direction of the simple wave of the shape, and the backing roll pressure side (toward) is operated so that AI is minimized. When the length-to-diameter ratio of the work roll is large, the variable crown roll usually exhibits a curve that provides a good plate shape, so the pressure of the backing roll (4) f51 is adjusted so that Al becomes zero. This improves the shape of the rolled plate °(S). but.
これだけではクォーターバックルには対応できない。This alone cannot handle the quarterback.
一方、第２調波の余弦項Ｂ２はクォーターバックルが発
生していると存在する係数であるから、この係数が小さ
くなるよう作業ロールベンディング装置［相］を作動さ
せ、そのとき第１調波を乱した分だけ更に控ロール（４
１（５）の油圧室（８）に加える圧油の圧力を同時に修
正する。On the other hand, the cosine term B2 of the second harmonic is a coefficient that exists when a quarter buckle occurs, so the work roll bending device [phase] is operated so that this coefficient becomes small, and at that time the first harmonic is An additional backup roll (4
At the same time, the pressure of the pressure oil applied to the hydraulic chamber (8) of No. 1 (5) is corrected.
偏差演算器（イ）からの出力は、形状検出器α〔からの
出力信号と形状設定器（ロ）で設定された設定信号との
差で、設定値が零の場合は形状検出器−からの出力その
ものでもよい。又、形状設定信号をフーリエ級数で与え
ても良い。The output from the deviation calculator (a) is the difference between the output signal from the shape detector α and the setting signal set by the shape setting device (b), and if the setting value is zero, the output from the shape detector The output itself may also be used. Alternatively, the shape setting signal may be given in the form of a Fourier series.
ロールクーラントのクーラントゾーンも形状偏差信号の
大小に応じて各ゾーンごとにクーラントバルブ群を入り
切りする。The coolant valve group for the roll coolant is also turned on and off for each zone depending on the size of the shape deviation signal.
なお、本発明の実施例においては、偏差演算器から出力
された偏差信号を直接ロールクーラント制御装置に保給
し、クーラント量を調整する場合について説明したが、
フーリエ級数展開装置を通して偏差信号をロールクーラ
ント制御装置へ送るようにしても良いこと、その信奉発
明の要旨を逸脱しない範囲内で種々変更を加え得ること
、等は勿論である。In the embodiment of the present invention, a case has been described in which the deviation signal output from the deviation calculator is directly supplied to the roll coolant control device to adjust the coolant amount.
It goes without saying that the deviation signal may be sent to the roll coolant control device through the Fourier series expansion device, and that various changes can be made without departing from the gist of the invention.
本発明の圧延材の形状制御方法及びその装置によれば、
Ｉ）従来の作業ロールベンディング装置のみによる形状
修正に加え、可変クラウンロールを使用することにより
、単純形状制御のみではなく複雑なりオーターバックル
も修正することができるため、より良好なフラットな板
を得ることができる。According to the method and apparatus for controlling the shape of a rolled material of the present invention, I) In addition to the shape correction using only the conventional work roll bending device, by using a variable crown roll, not only simple shape control but also complicated overbuckling can be achieved. can also be modified to obtain a better flat board.
■）形状センサーよりの出力信号をフーリエ級数に展開
し、そのフーリエ級数をパラメータとして各アクチュエ
ータの作動圧力を自動的に調整できるため、作業が便利
で作業能率も良好である。■) The output signal from the shape sensor is expanded into a Fourier series, and the operating pressure of each actuator can be automatically adjusted using the Fourier series as a parameter, making work convenient and efficient.
等、種々の優れた効果を奏し得る。Various excellent effects can be achieved.
第１図は本発明の一実施例の説明図、第２図は本発明に
使用する圧延機控ロールの説明図である。
図中（１１は圧延機、（２１（３１は作業ロール、ｆ４
） （５）は控ロール、（６）はスリーブ、（８）は油
圧室、顛は形状検出器、ａ→はフーリエ級数展開装置、
（ト）は控ロール圧゛力制御装置、αＱは作業ロールベ
ンディング制御装置を示す。FIG. 1 is an explanatory diagram of one embodiment of the present invention, and FIG. 2 is an explanatory diagram of a rolling mill backing roll used in the present invention. In the figure (11 is a rolling mill, (21 (31 is a work roll, f4
) (5) is the retainer roll, (6) is the sleeve, (8) is the hydraulic chamber, the frame is the shape detector, a→ is the Fourier series expansion device,
(G) indicates a back roll pressure control device, and αQ indicates a work roll bending control device.
Claims (1)
エ級数展開し、そのフーリエ級数の第１調波分で圧延材
の単純波形状を修正し、第１詞波分及び第２調波分で圧
延材の複合波形状を修正することを特徴とする圧延材の
形状制御方法。 ２）圧延材の形状を検出する形状検出器と、該形状検出
器よシの信号をフーリエ級数展開するためのフーリエ級
数展開装置と、該フーリエ級数展開装置で展開された第
１調波の余弦項の係数データ及び第２ｐｌ波の余弦項の
係数データにより、可変クラウンロール形式のバックア
ップロールの油圧室に供給する油の圧力を制御する控ロ
ール圧力制御装置と、第２調波の余弦項によシ作業ロー
ルベンディング装置を制御する作業ロールベンディング
制御装置と、を設けたことを特徴とする圧延材の形状制
御装置。[Claims] 1) The shape signal of the rolled material detected by the shape detector is expanded into a Fourier series, and the simple wave shape of the rolled material is corrected by the first harmonic of the Fourier series. A method for controlling the shape of a rolled material, comprising modifying the composite wave shape of the rolled material using a wave component and a second harmonic component. 2) A shape detector that detects the shape of the rolled material, a Fourier series expansion device that expands the signal from the shape detector into a Fourier series, and a cosine of the first harmonic developed by the Fourier series expansion device. A back roll pressure control device that controls the pressure of oil supplied to the hydraulic chamber of the backup roll of the variable crown roll type using the coefficient data of the second PL wave and the coefficient data of the cosine term of the second harmonic. 1. A shape control device for a rolled material, comprising: a work roll bending control device that controls a work roll bending device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56188741A JPS5890308A (en) | 1981-11-25 | 1981-11-25 | Method and device for controlling shape of rolled material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56188741A JPS5890308A (en) | 1981-11-25 | 1981-11-25 | Method and device for controlling shape of rolled material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5890308A true JPS5890308A (en) | 1983-05-30 |
| JPH0147243B2 JPH0147243B2 (en) | 1989-10-13 |
Family
ID=16228955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56188741A Granted JPS5890308A (en) | 1981-11-25 | 1981-11-25 | Method and device for controlling shape of rolled material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5890308A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59189009A (en) * | 1983-04-08 | 1984-10-26 | Sumitomo Metal Ind Ltd | Method for controlling sheet crown and sheet shape of rolling material |
| JPS60206511A (en) * | 1984-03-29 | 1985-10-18 | Sumitomo Metal Ind Ltd | Method and device for controlling sheet shape |
| FR2596303A1 (en) * | 1986-03-25 | 1987-10-02 | Etude Installations Siderurgiq | Roll with casing having blocked expansion, for rolling mills |
| WO1990000450A1 (en) * | 1988-07-11 | 1990-01-25 | DAVID McKEE (POOLE) LIMITED | Rolling of strip material |
-
1981
- 1981-11-25 JP JP56188741A patent/JPS5890308A/en active Granted
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59189009A (en) * | 1983-04-08 | 1984-10-26 | Sumitomo Metal Ind Ltd | Method for controlling sheet crown and sheet shape of rolling material |
| JPS60206511A (en) * | 1984-03-29 | 1985-10-18 | Sumitomo Metal Ind Ltd | Method and device for controlling sheet shape |
| JPH0520171B2 (en) * | 1984-03-29 | 1993-03-18 | Sumitomo Kinzoku Kogyo Kk | |
| FR2596303A1 (en) * | 1986-03-25 | 1987-10-02 | Etude Installations Siderurgiq | Roll with casing having blocked expansion, for rolling mills |
| WO1990000450A1 (en) * | 1988-07-11 | 1990-01-25 | DAVID McKEE (POOLE) LIMITED | Rolling of strip material |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0147243B2 (en) | 1989-10-13 |
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