JPH0586290B2 - - Google Patents
Info
- Publication number
- JPH0586290B2 JPH0586290B2 JP59091642A JP9164284A JPH0586290B2 JP H0586290 B2 JPH0586290 B2 JP H0586290B2 JP 59091642 A JP59091642 A JP 59091642A JP 9164284 A JP9164284 A JP 9164284A JP H0586290 B2 JPH0586290 B2 JP H0586290B2
- Authority
- JP
- Japan
- Prior art keywords
- shape
- strip
- width direction
- roll
- detector
- 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.)
- Expired - Fee Related
Links
- 238000005096 rolling process Methods 0.000 claims description 20
- 238000001514 detection method Methods 0.000 claims description 14
- 230000007423 decrease Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005097 cold rolling Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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
- B21B37/38—Control of flatness or profile during rolling of strip, sheets or plates using roll bending
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
- B21B38/02—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring flatness or profile of strips
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は多段圧延スタンドを通して圧延される
帯板の幅方向の形状を検出し、所望の形状に制御
するようにした形状制御装置に関するものであ
る。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a shape control device that detects the shape in the width direction of a strip rolled through a multi-stage rolling stand and controls the shape to a desired shape. be.
［従来の技術］
熱間或は冷間圧延設備においては、第１図に示
すように複数の多段圧延スタンドａに帯板ｂを通
し所望の板幅及び板厚の製品を得ている。[Prior Art] In a hot or cold rolling facility, a strip b is passed through a plurality of multi-stage rolling stands a to obtain a product having a desired width and thickness, as shown in FIG.
該多段圧延スタンドａにより圧延される帯板ｂ
は、各種の要因により端伸び、中伸び等を生じ易
く、形状不良等の製品の品質低下を招いてしま
う。 Strip b rolled by the multi-stage rolling stand a
Due to various factors, edge elongation, middle elongation, etc. are likely to occur, resulting in deterioration of product quality such as poor shape.
そのため従来は、多段圧延スタンドａ間にルー
パーロールｃを配設して、通過する帯板ｂの幅方
向の張力を検出し、ルーパーロールｃ前段の多段
圧延スタンドa′の作業ロールｄプロフイルを変え
て圧延するようにしている。板プロフイルを変更
するためベンダー等でロールプロフイルを変えて
圧延するが、このことで板の形状が大幅に乱れて
圧延が困難になる。このため、板のプロフイルの
変更はスタンド間の形状センサーのモニターなく
しては形状の乱れの許容値を保つてプロフイルコ
ントロールすることがむつかしい。 Therefore, conventionally, a looper roll c is arranged between multi-stage rolling stands a, and the tension in the width direction of the passing strip b is detected, and the work roll d profile of the multi-stage rolling stand a′ in front of the looper roll c is changed. The material is then rolled. In order to change the sheet profile, rolling is performed by changing the roll profile using a bender or the like, but this greatly disturbs the shape of the sheet and makes rolling difficult. For this reason, it is difficult to change the profile of the board without monitoring the shape sensor between the stands to maintain the tolerance for shape disturbance and control the profile.
［発明が解決しようとする問題点］
本発明は上述の従来の実状に鑑み、帯板の幅方
向の形状を適確に検出し、その許容制限内で圧延
形状に応じた帯板の断面プロフイル制御を行なえ
る形状制御装置を提供しようとするものである。[Problems to be Solved by the Invention] In view of the above-mentioned conventional situation, the present invention accurately detects the shape of the strip in the width direction, and calculates the cross-sectional profile of the strip according to the rolled shape within the permissible limit. The purpose is to provide a shape control device that can perform control.
［問題点を解決するための手段］
多段圧延スタンド間に帯板の幅方向に配設され
た起伏が可能なフレームと、該フレームに一端が
固定され他端に前記帯板に当接するローラを回転
自在に備えたトーシヨンバーと、該トーシヨンバ
ーに歪ゲージを配設して帯板の幅方向の形状を複
数位置で検出する形状検出器と、帯板の形状制御
に制限を与える形状制限設定器と、前記形状検出
器からの検出信号と形状制限設定器からの設定形
状制限値を入力して比較する比較器と、該比較器
からの信号に基づいて帯板の形状を制御する形状
制御用アクチユエーターとを備えてなり、該形状
制御用アクチユエーターの作動を前記形状制限設
定器によつて設定された制限値内で制御するよう
構成したことを特徴とする形状制御装置にかかる
ものである。[Means for solving the problem] A frame that can be raised and lowered and arranged in the width direction of the strip between multi-stage rolling stands, and a roller that is fixed at one end to the frame and comes into contact with the strip at the other end. A torsion bar that is rotatably provided, a shape detector that detects the shape of the strip in the width direction at multiple positions by disposing strain gauges on the torsion bar, and a shape limit setting device that limits the shape control of the strip. , a comparator that inputs and compares the detection signal from the shape detector and the set shape limit value from the shape limit setter, and a shape control actuator that controls the shape of the strip based on the signal from the comparator. yuator, and is configured to control the operation of the shape control actuator within a limit value set by the shape limit setting device. be.
［実施例］
以下、本発明の実施例を図面を参照しつつ説明
する。[Example] Hereinafter, an example of the present invention will be described with reference to the drawings.
第３図乃至第６図は本発明の一実施例であり、
ローラ１をトーシヨンバー２の先端部にピン３に
て回転可能に取り付け、該トーシヨンバー２の基
端部に設けたピン４をブラケツト５に固定し、該
固定部６に歪みゲージ例えばストレンゲージ７を
設け張力検出素子８としてある。図中、９はスト
レンゲージ７からの電気信号（検出信号）を導く
ための導線である。 FIGS. 3 to 6 show an embodiment of the present invention,
A roller 1 is rotatably attached to the tip of a torsion bar 2 with a pin 3, a pin 4 provided at the base end of the torsion bar 2 is fixed to a bracket 5, and a strain gauge, for example, a strain gauge 7 is provided on the fixing part 6. It is provided as a tension detection element 8. In the figure, 9 is a conducting wire for guiding an electric signal (detection signal) from the strain gauge 7.
該張力検出素子８を、圧延すべき帯板１０の板
幅よりも広幅のフレーム１１の先端部に、幅方向
一列となるようブラケツト５において複数固定
し、該フレーム１１を多段圧延スタンド１３間の
帯板１０通過ラインの上方又は下方に位置するよ
う軸１４によりブラケツト１５へ枢着し、該フレ
ーム１１をモータ等の外部駆動力により起伏し得
るようにして形状検出器１６を構成してある。 A plurality of tension detecting elements 8 are fixed to the tip of a frame 11 having a width wider than the width of the strip 10 to be rolled using a bracket 5 so as to be arranged in a row in the width direction, and the frame 11 is fixed between the multi-stage rolling stands 13. A shape detector 16 is pivotally connected to a bracket 15 by a shaft 14 so as to be located above or below the passing line of the strip plate 10, and the frame 11 can be raised and lowered by an external driving force such as a motor.
更に、該形状検出器１６の各ストレンゲージ７
からの導線９を比較器１７に接続し、各ストレン
ゲージ７からの電気信号を、形状制限設定器１８
で入力設定した設定形状制御値と比較するように
し、該比較器１７からの信号をベンダー入力制限
器１９に送り、外部入力設定器２０により設定し
た値以下の信号を遮断し、設定値以上の信号をベ
ンダー制御器２１に送るようにし、該ベンダー制
御器２１でロールベンダー２２（形状制御用アク
チユエーター）の開度を演算し、開度信号をロー
ルベンダー２２に送り、ロールベンダー２２の開
度を変化させて多段圧延スタンド１３の作業ロー
ル２３のロールプロフイルをフイードバツクコン
トロールし得るようにしてある。 Furthermore, each strain gauge 7 of the shape detector 16
The electrical signals from each strain gauge 7 are connected to the comparator 17 and the shape limit setting device 18
The signal from the comparator 17 is sent to the bender input limiter 19, which cuts off signals below the value set by the external input setting device 20, and when the signal exceeds the set value. The bender controller 21 calculates the opening degree of the roll bender 22 (shape control actuator), sends the opening degree signal to the roll bender 22, and calculates the opening degree of the roll bender 22 (shape control actuator). The roll profile of the work rolls 23 of the multi-high rolling stand 13 can be feedback-controlled by changing the rolling angle.
以上のように構成したので、フレーム１１を起
こして各張力検出素子８のローラ１が帯板１０の
下面に一定の張力で均一に当接するようにしてお
き、走行する帯板１０の張力を幅方向に張力検出
素子８数と同数に区分して検出し得るようにす
る。 With the above structure, the frame 11 is raised so that the rollers 1 of each tension detection element 8 are brought into uniform contact with the lower surface of the strip plate 10 with a constant tension, and the tension of the running strip plate 10 is adjusted to the width. The tension detection element is divided into the same number as the eight tension detection elements in the direction so that detection can be performed.
圧延された帯板１０に例えば両端部が薄く圧延
されて端伸びを生ずると、薄く圧延されて端伸び
を生じた部分に当接するローラ１にかかる張力が
低下し、トーシヨンバー２が起きてストレンゲー
ジ７にかかる歪みが減少する。ストレンゲージ７
にかかる歪みが減少すると該ストレンゲージ７か
ら張力低下を示す電気信号が比較器１７に送られ
る。 For example, when both ends of the rolled strip 10 are thinly rolled and end elongation occurs, the tension applied to the roller 1 that comes into contact with the thinly rolled and end elongated portion decreases, and the torsion bar 2 is raised and the strain gauge 7 is reduced. strain gauge 7
When the strain applied to the strain gauge 7 decreases, an electrical signal indicating a decrease in tension is sent to the comparator 17 from the strain gauge 7.
帯板１０に中伸びが生ずると、中伸び部に当接
する張力検出素子８から張力低下を示す電気信号
が出され、又帯板１０の幅方向いずれかの区分に
厚板部が生ずると、該厚板部に当接する張力検出
素子８のローラ１及びトーシヨンバー２が伏し、
ストレンゲージ７にかかる歪みが増大し、張力の
増大を示す信号が比較器１７に送られる。 When elongation occurs in the strip plate 10, an electric signal indicating a decrease in tension is output from the tension detection element 8 that comes into contact with the elongated portion, and when a thick plate portion occurs in any section in the width direction of the strip plate 10, The roller 1 and torsion bar 2 of the tension detection element 8 that come into contact with the thick plate part are turned down,
The strain on the strain gauge 7 increases and a signal indicating the increase in tension is sent to the comparator 17.
このように、幅方向に一列に設けた各張力検出
素子８により、帯板１０の各区分の板厚等の板形
状が張力として別個に検出され、夫々比較器１７
に送られる。 In this way, each tension detection element 8 arranged in a line in the width direction separately detects the plate shape such as the plate thickness of each section of the strip plate 10 as tension, and the comparator 17
sent to.
該比較器１７においては、連続的に送られてく
る形状検出器１６からの張力信号を、形状制限設
定器１８からの設定形状制限値と比較し、制限値
内に押えられた各比較信号をベンダー入力制御器
１９に送る。 The comparator 17 compares the continuously sent tension signal from the shape detector 16 with the set shape limit value from the shape limit setter 18, and calculates each comparison signal that is kept within the limit value. to vendor input controller 19.
該ベンダー入力制限器１９では、前記各比較信
号と外部入力設定器２０により設定した設定値と
を比較し、該設定値以上の比較信号のみをベンダ
ー制御器２１に送るようにして、ベンダー制御器
２１が細かい数値で変動して敏感に作動しすぎる
のを防止するようにしている。 The bender input limiter 19 compares each of the comparison signals with a setting value set by the external input setting device 20, and sends only comparison signals that are equal to or higher than the set value to the bender controller 21. This is to prevent 21 from operating too sensitively due to small numerical fluctuations.
該ベンダー制御器２１においては、形状検出器
１６で検出した帯板１０の端伸び、中伸び等の形
状不良が大きく発生した場合にも、前記形状制限
設定器１８によつて制限された比較信号に基づい
てロールベンダー２２を制限し、ロールベンダー
２２にベンダー制限信号を送る。 In the bender controller 21, even if a large shape defect such as end elongation or middle elongation of the strip plate 10 detected by the shape detector 16 occurs, the comparison signal limited by the shape limit setting device 18 is used. The roll bender 22 is restricted based on the following, and a bender restriction signal is sent to the roll bender 22.
該ベンダー制御信号により上段側の多段圧延ス
タンド１３のロールベンダー２２の開度が調整さ
れ、該多段圧延スタンド１３の作業ロール２３プ
ロフイルが変更されるので、圧延状況に応じて帯
板の形状制限をなし得る。 The opening degree of the roll bender 22 of the upper multi-stage rolling stand 13 is adjusted by the bender control signal, and the profile of the work roll 23 of the multi-stage rolling stand 13 is changed, so that the shape of the strip can be restricted depending on the rolling situation. It can be done.
なお、本発明の形状検出装置は上述の実施例の
みに限定されるものではなく、帯板を幅方向に複
数区分して各区分の張力を検出する形状検出器の
区分数は二以上であればよく、区分数を多くすれ
ば更に精度よく板形状を検出し得て形状制御能力
が高められること、形状検出器は連続ミルに少な
くとも１基設ければよいこと、又形状検出器を設
ける位置は最終段の多段圧延スタンド入側とする
のが好ましいが、いずれの多段圧延スタンドの入
側でもよいこと、形状制御手段としてはロールベ
ンダー以外にもVCロール、ロールシフト装置等
を用いてもよいこと、等、本発明の要旨を逸脱し
ない範囲内において種々変更を加え得ることは勿
論である。 Note that the shape detection device of the present invention is not limited to the above-described embodiments, and the shape detector that divides the strip into a plurality of sections in the width direction and detects the tension in each section may have two or more sections. If the number of sections is increased, the plate shape can be detected more accurately and the shape control ability can be improved, and at least one shape detector should be installed in the continuous mill, and the location where the shape detector should be installed Although it is preferable to place the roll on the entrance side of the final multi-stage rolling stand, it may be on the entrance side of any multi-stage rolling stand, and as a shape control means, a VC roll, a roll shift device, etc. may be used in addition to the roll bender. It goes without saying that various changes may be made without departing from the gist of the present invention.
［発明の効果］
以上述べたように本発明の形状制御装置によれ
ば、帯板の幅方向に配置したローラを支持するト
ーシヨンバーに歪ゲージを配置した形状検出器に
より走行する帯板の形状を検出し、該形状検出器
からの検出信号を形状制限設定器からの設定形状
制限値と比較して、制限値内で形状検出器上流側
の多段圧延スタンドの作業ロールプロフイルを制
御するようにしたので、ロールプロフイルを変更
しようとするとき、制御量が過大になることによ
つて帯板の形状が大幅に乱れて圧延が不能になる
と言うような問題が発生するのを防止して、帯板
の形状の乱れを制限値内において確実に制御する
ことができ、前記した形状検出器によつて帯板の
幅方向の形状を容易且つ確実に検出できることと
相俟つて、安定して帯板の形状不良の発生を制限
内に抑えることができる等の種々の優れた効果を
発揮する。[Effects of the Invention] As described above, according to the shape control device of the present invention, the shape of the traveling strip can be determined by the shape detector in which the strain gauge is arranged on the torsion bar that supports the rollers arranged in the width direction of the strip. The detection signal from the shape detector is compared with the set shape limit value from the shape limit setter, and the work roll profile of the multi-high rolling stand upstream of the shape detector is controlled within the limit value. Therefore, when trying to change the roll profile, it is possible to prevent problems such as the shape of the strip being drastically disturbed due to the excessive control amount and making rolling impossible. The disturbance in the shape of the strip can be reliably controlled within the limit value, and the shape detector described above can easily and reliably detect the shape of the strip in the width direction. It exhibits various excellent effects such as being able to suppress the occurrence of shape defects within limits.
第１図は帯板圧延設備の説明図、第２図は第１
図における従来のルーパーロールの説明図、第３
図は本発明の形状制御装置の説明図、第４図は第
３図における形状検出器の詳細図、第５図は第４
図の部詳細図、第６図は第４図の−方向矢
視図である。
１はロール、２はトーシヨンバー、７はストレ
ンゲージ、８は張力検出素子、１０は帯板、１３
は多段圧延スタンド、１６は形状検出器、１７は
比較器、１８は形状制限設定器、２２はロールベ
ンダー（形状制御用アクチユエーター）を示す。
Figure 1 is an explanatory diagram of the strip rolling equipment, Figure 2 is the
Explanatory diagram of the conventional looper roll in Figure 3
The figure is an explanatory diagram of the shape control device of the present invention, FIG. 4 is a detailed diagram of the shape detector in FIG. 3, and FIG.
A detailed view of the part shown in the figure, FIG. 6 is a view taken in the - direction arrow of FIG. 4. 1 is a roll, 2 is a torsion bar, 7 is a strain gauge, 8 is a tension detection element, 10 is a strip plate, 13
16 is a shape detector, 17 is a comparator, 18 is a shape limit setting device, and 22 is a roll bender (shape control actuator).
Claims (1)
れた起伏が可能なフレームと、該フレームに一端
が固定され他端に前記帯板に当接するローラを回
転自在に備えたトーシヨンバーと、該トーシヨン
バーに歪ゲージを配設して帯板の幅方向の形状を
複数位置で検出する形状検出器と、帯板の形状制
御に制限を与える形状制限設定器と、前記形状検
出器からの検出信号と形状制限設定器からの設定
形状制限値を入力して比較する比較器と、該比較
器からの信号に基づいて帯板の形状を制御する形
状制御用アクチユエーターとを備えてなり、該形
状制御用アクチユエーターの作動を前記形状制限
設定器によつて設定された制限値内で制御するよ
う構成したことを特徴とする形状制御装置。1. A frame capable of raising and lowering arranged in the width direction of the strip plate between multi-stage rolling stands, a torsion bar having one end fixed to the frame and rotatably equipped with a roller that comes into contact with the strip plate at the other end; A shape detector that detects the shape of the strip in the width direction at multiple positions by disposing strain gauges on the torsion bar, a shape limit setting device that limits the shape control of the strip, and a detection signal from the shape detector. and a comparator for inputting and comparing the set shape limit value from the shape limit setting device, and a shape control actuator for controlling the shape of the strip based on the signal from the comparator. A shape control device characterized in that the shape control actuator is configured to control the operation of the shape control actuator within a limit value set by the shape limit setting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59091642A JPS60234709A (en) | 1984-05-08 | 1984-05-08 | Shape control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59091642A JPS60234709A (en) | 1984-05-08 | 1984-05-08 | Shape control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60234709A JPS60234709A (en) | 1985-11-21 |
| JPH0586290B2 true JPH0586290B2 (en) | 1993-12-10 |
Family
ID=14032175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59091642A Granted JPS60234709A (en) | 1984-05-08 | 1984-05-08 | Shape control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60234709A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2628347B1 (en) * | 1988-03-09 | 1990-12-21 | Clecim Sa | IMPROVED PROCESS AND INSTALLATION FOR THE CONTINUOUS LAMINATION OF A METAL STRIP |
| DE19953524A1 (en) * | 1999-11-05 | 2001-05-10 | Sms Demag Ag | Loop lifter |
| JP4296478B2 (en) | 2003-04-02 | 2009-07-15 | 株式会社Ｉｈｉ | Shape detection device |
| FR2879486B1 (en) * | 2004-12-22 | 2007-04-13 | Vai Clecim Sa | REGULATING THE PLANEITY OF A METAL STRIP AT THE EXIT OF A ROLLER CAGE |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5666310A (en) * | 1979-11-05 | 1981-06-04 | Reikan Research Ltd | Device for automatically controlling shape of metallic sheet manufactured by means of rolling mill |
| JPS5770014A (en) * | 1980-10-22 | 1982-04-30 | Hitachi Ltd | Plate-crown controlling device |
-
1984
- 1984-05-08 JP JP59091642A patent/JPS60234709A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5666310A (en) * | 1979-11-05 | 1981-06-04 | Reikan Research Ltd | Device for automatically controlling shape of metallic sheet manufactured by means of rolling mill |
| JPS5770014A (en) * | 1980-10-22 | 1982-04-30 | Hitachi Ltd | Plate-crown controlling device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60234709A (en) | 1985-11-21 |
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| LAPS | Cancellation because of no payment of annual fees |