JPH0428409A - Automatic thickness controller for reversing cold rolling mill - Google Patents
Automatic thickness controller for reversing cold rolling millInfo
- Publication number
- JPH0428409A JPH0428409A JP2130615A JP13061590A JPH0428409A JP H0428409 A JPH0428409 A JP H0428409A JP 2130615 A JP2130615 A JP 2130615A JP 13061590 A JP13061590 A JP 13061590A JP H0428409 A JPH0428409 A JP H0428409A
- Authority
- JP
- Japan
- Prior art keywords
- control
- tension
- rolling mill
- reduction
- cold rolling
- 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
- 238000005097 cold rolling Methods 0.000 title claims abstract description 14
- 230000002441 reversible effect Effects 0.000 claims description 11
- 238000005096 rolling process Methods 0.000 abstract description 15
- 230000000694 effects Effects 0.000 abstract description 6
- 230000006866 deterioration Effects 0.000 abstract 1
- 238000012544 monitoring process Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
- 230000002452 interceptive effect Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000007423 decrease Effects 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
- B21B37/16—Control of thickness, width, diameter or other transverse dimensions
- B21B37/18—Automatic gauge control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2265/00—Forming parameters
- B21B2265/02—Tension
- B21B2265/04—Front or inlet tension
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2265/00—Forming parameters
- B21B2265/02—Tension
- B21B2265/08—Back or outlet tension
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、可逆式冷間圧延機の自動板厚制御の精度向
上に関する吃のである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to improving the accuracy of automatic plate thickness control in a reversible cold rolling mill.
第３図は従来の可逆式冷間圧延機の自動板厚制御装置を
示す構成図であシ、図において、１社圧延方向、２は圧
延鋼板、３は圧延機（ミル）、４はゲージメータ制御（
Ｒｏｌｌ Ｆｏｒｃｅ ＡＧＣ）演算回路、５はフィー
ドフォワード制御（Ｆｅｅｄ Ｆｏｒｗａｒｄ ＡＧＣ
）演算回路、６は圧下モニタ制御（Ｍｏｎ１ｔｏｒ Ａ
ＧＣ）演算回路、７は制御出力ミキシング回路、８は張
力モニタ制御回路、９は厚み計、１０は張力計、１１は
荷重計である。Fig. 3 is a configuration diagram showing an automatic sheet thickness control device for a conventional reversible cold rolling mill. Meter control (
Roll Force AGC) arithmetic circuit; 5 is a feedforward control (Feed Forward AGC)
) arithmetic circuit, 6 is a pressure reduction monitor control (Mon1tor A
GC) arithmetic circuit, 7 is a control output mixing circuit, 8 is a tension monitor control circuit, 9 is a thickness gauge, 10 is a tension meter, and 11 is a load meter.
次に動作について説明する。圧延機３によって圧延方向
１に圧延される圧延鋼板２の入／出側板厚を入／出側に
設置された厚み計９により検出する。次いで、検出した
目標板厚との板厚偏差をもとにフィードフォワード制御
演算回路５、圧下モニタ制御演算回路６により、制御出
力を各々演算する。また、荷重計１１からの圧延力をも
とに、ゲージメータ制御演算回路４により制御出力を求
める。これらの各制御演算回路で求めた制御出力を制御
出力ミキシング回路７である分配比によりミキシングし
、圧下制御系、入側張力制御系へ出力して、目標板厚と
なるよう自動板厚制御系１構成する。これら基本構成と
は別に、制御補＃機能として、張力計１０からの張力測
定値をもとに張力モニタ制御回路８を持つ。Next, the operation will be explained. The inlet/outlet side plate thickness of the rolled steel plate 2 rolled in the rolling direction 1 by the rolling mill 3 is detected by a thickness gage 9 installed at the inlet/outlet side. Next, the feedforward control calculation circuit 5 and the reduction monitor control calculation circuit 6 calculate control outputs based on the detected plate thickness deviation from the target plate thickness. Further, based on the rolling force from the load meter 11, a control output is determined by the gauge meter control calculation circuit 4. The control outputs obtained by each of these control calculation circuits are mixed by the distribution ratio in the control output mixing circuit 7, and output to the reduction control system and the entry tension control system to control the automatic plate thickness control system to achieve the target plate thickness. 1 Configure. Apart from these basic configurations, a tension monitor control circuit 8 is provided as a control function based on the tension measurement value from the tension meter 10.
従来の可逆式冷間圧延機の自動板厚制御装置は以上のよ
うに構成されているので、制御出力として圧下を変化さ
せた場合、圧延機の入／出側張力の変動が起き、制御量
ＪＩＰ：：を低下さぜる。これは、高応答な油圧圧下制
御系に対して、ディジタルサイリスタレオナードによる
張力制御系がｆ！いことにより、どうしても圧下を変化
させたとき、張力変動が生じてしまうという課題があっ
た。The automatic plate thickness control device of a conventional reversible cold rolling mill is configured as described above, so when the rolling reduction is changed as a control output, the tension at the input/output side of the rolling mill changes, and the control amount changes. JIP:: is lowered. This means that compared to the highly responsive hydraulic pressure reduction control system, the digital thyristor Leonard tension control system is f! As a result, there was a problem in that tension fluctuations occurred when the rolling reduction was unavoidably changed.
この発明り上記のような課題を解消するためになされた
もので、圧延制御系全体の安定性と、ギャップＡＧＯ（
ゲージメータ制御、フィードフォワード制御、圧下モニ
タ制御の総称）の効果を向上できる可逆式冷間圧延機の
自動板厚制御装置を得ることを目的とする。This invention was made to solve the above-mentioned problems, and improves the stability of the entire rolling control system and the gap AGO (
The purpose of the present invention is to obtain an automatic plate thickness control device for a reversible cold rolling mill that can improve the effects of gauge meter control, feedforward control, and reduction monitor control.
〔線１Ｍｆ解決）−るための手段〕
この発明に係る可逆式冷間圧延機の自動板厚制御装＃は
、従来のシステム構成に加え、ギャップＡＧＣによる圧
下変化１による入／出側張力変動を予測し、それを補正
する非干渉張力制御演算回路を備えたものである。[Means for solving wire 1Mf] The automatic plate thickness control system for a reversible cold rolling mill according to the present invention has, in addition to the conventional system configuration, an input/output side tension fluctuation due to a rolling reduction change 1 by gap AGC. It is equipped with a non-interfering tension control calculation circuit that predicts and corrects it.
この発明における可逆式冷間圧延機の自動板厚制御装置
は圧下の変化量による入／出側張力変動を予測し７、そ
れを補正する微分回路を持つ非干渉張力制御演算回路に
より、ギャップＡＧＣ出力からくる張力変動をなくし、
より安定性のある、１だ、ギャップＡＧＣの効果向上を
得ることができる。The automatic plate thickness control device for a reversible cold rolling mill according to the present invention predicts input/output side tension fluctuations due to changes in rolling reduction 7 and uses a non-interference tension control calculation circuit with a differential circuit to correct the fluctuations. Eliminates tension fluctuations caused by output,
1, which provides more stability and improves the effect of gap AGC.
以下、この発明の一実施例を図について説明する。第１
図はこの発明による一実施例の可逆式冷間圧延機の自動
板厚制御装置を示す構成図、第２図はこの発明による一
実施例の非干渉張力制御回路を示すブロック図であり、
１〜１１は上記従来のものと全く同一のものである。１
２はギャップＡＧＣ出力から張力変動量全圧下の張力に
対する影響係数から予測し、微分器により張力肇動の生
じないように張力補正量を演算する非干渉張力制御演算
回路である。An embodiment of the present invention will be described below with reference to the drawings. 1st
FIG. 2 is a block diagram showing an automatic plate thickness control device for a reversible cold rolling mill according to an embodiment of the present invention, and FIG. 2 is a block diagram showing a non-interference tension control circuit according to an embodiment of the present invention.
1 to 11 are exactly the same as the above conventional ones. 1
Reference numeral 2 denotes a non-interference tension control calculation circuit which predicts the tension variation amount from the coefficient of influence on the tension under the total pressure from the gap AGC output and uses a differentiator to calculate the tension correction amount so that tension fluctuation does not occur.
次に動作について説明する。自動板厚制御の基本システ
ム構成は、従来方式と同様であるが、それに加えて、ギ
ャップＡＧＣの圧下系への制御出力に、あらかじめ圧下
と張力の相互干渉モデルより求めた圧下の張力に対する
影響係数をかけて、微分器を介して入／出側張力それぞ
れの張力補正１を求め出力する非干渉張力制御演算回路
１２１＆：備えている。この回路により、ギヤクズＡＧ
Ｃ出力による張力変動をなくすことができる。従来は、
これらの張力変動は駆動制御系であるディジタルサイリ
スタレオナードの電流制御のみでカバーしていたが、非
干渉張力制御演算回路を備えることにより、ギャップＡ
ＧＣによる張力変動は、サイリスタレオナードの電流制
御にたよらすともよいシステムとした。また、このシス
テムは、「計測と制御（１９８９年５月、 Ｖｏｌ Ｚ
８ 、 Ｎｏ、５） Ｊで発表されているような複鍵な
りロスコントロー２等を制御系の中に持たないため、シ
ステムとして組みやすくＤＤＣ（Ｄｉｒｅｃｔ Ｄｉｇ
ｉｔａｌ Ｃｏｎｔｒｏｌｌｅｒ ）レベルで十分対応
できるものである。次に第２図の非干渉張力制御演算回
路のブロック図について説明する。Next, the operation will be explained. The basic system configuration of automatic plate thickness control is the same as the conventional method, but in addition, the control output of the gap AGC to the reduction system includes an influence coefficient on the tension of the reduction calculated in advance from a mutual interaction model of reduction and tension. A non-interference tension control calculation circuit 121&: is provided which calculates and outputs tension correction 1 for each input/output tension via a differentiator. With this circuit, Gear Kuzu AG
Tension fluctuations due to C output can be eliminated. conventionally,
These tension fluctuations were covered only by current control of the digital thyristor Leonard drive control system, but by providing a non-interfering tension control calculation circuit, gap A
The tension fluctuation caused by the GC can be controlled by the current control of a thyristor Leonard. This system is also described in “Measurement and Control (May 1989, Vol Z
8, No. 5) Since the control system does not have multiple keys or loss controllers 2, etc. as announced in J.
It can be fully handled at the controller level. Next, a block diagram of the non-interference tension control calculation circuit shown in FIG. 2 will be explained.
圧下系への制御出力としてギャップＡＧＣ演算回路で演
算され九Δ５ＡＧＣを非干渉張力制御演算回路１２に入
力１−１入／出側張力それぞれの張力補正量を求めるた
めに、Δ５ｈａｃに、あらかじめ、圧力と張力の相互干
渉モデルよシ求めた圧下に対するかけて、さらに微分器
を介してＫＤｌ”Ｓ 、ＫＤ２・Ｓを乗することにより
、入／出側張力それぞれの張力補正量ｌｔｂ米（入側）
。Δｔｆ半（出＠）が非干渉張力制御演算回路１２で求
まり、その張力補正量Δｔｂ”（入＠）、Δｔｆ”（出
側）を非干渉張力制御演算回路より出力し、入／出側張
力それぞれの目標値を加算器で加えて、張力変動のＡい
適切な制御量が作られる。9Δ5AGC calculated by the gap AGC calculation circuit as a control output to the reduction system is input to the non-interfering tension control calculation circuit 12. In order to obtain the tension correction amount for each of the 1-1 input and output tensions, the pressure is set in advance to Δ5hac. By multiplying the reduction calculated by the mutual interaction model of tension and tension by KDl''S and KD2・S through a differentiator, the tension correction amount ltb (input side) for each input/output tension is calculated.
. Δtf half (output @) is determined by the non-interference tension control calculation circuit 12, and the tension correction amount Δtb” (input @) and Δtf” (output side) are outputted from the non-interference tension control calculation circuit, and the input/output side tension is By adding each target value using an adder, an appropriate control amount for tension fluctuation is created.
以上のように、この発明によれば、自動板厚制御システ
ムを、圧下を動かすギャップＡＧＣによる入／出側張力
変動をなくすことのできる非干渉張力制御演算回路を備
えるように構成したので、圧下と張力による相互干渉か
らくるＡＧＣ効釆の低下をなくシ、ギャップＡＧＣの効
果向上と、しいては、圧延制御系全体の安定性も向上で
き、より高精度な板厚を得られる効果がある。As described above, according to the present invention, the automatic plate thickness control system is configured to include a non-interfering tension control calculation circuit that can eliminate input/output side tension fluctuations caused by the gap AGC that moves the reduction. This eliminates the decline in AGC effectiveness caused by mutual interference between the AGC and tension forces, improves the effectiveness of the gap AGC, and improves the stability of the entire rolling control system, making it possible to obtain more accurate sheet thickness. .
第１図はこの発明の一実施例による可逆式冷間圧延機の
自動板厚制御装置を示す構成図、第２図はこの発明の一
実施例による非干渉張力制御演算回路を示すブロック図
、第３図は従来の可逆式冷間圧延機の自動板厚制御装置
を示す構成図である。
１は圧延方向、２は圧延鋼板、３は圧延機（ミル）、４
はゲージメータ制御演算回路、５はフィードフォワード
制御演算回路、６は圧下モニタ制御演算回路、７は制御
出力ミキシング回路、８は張力モニタ制御回路、９は厚
み計、１０は張力計、１１は荷重計、１２は非干渉張力
制御演算回路である。
なお、
図中、
同一符号は同一、
又は相当部分を
示す。
特
許
出
願
人
三菱電機株式会社
（外２名〕FIG. 1 is a block diagram showing an automatic plate thickness control device for a reversible cold rolling mill according to an embodiment of the present invention, and FIG. 2 is a block diagram showing a non-interference tension control calculation circuit according to an embodiment of the present invention. FIG. 3 is a configuration diagram showing an automatic plate thickness control device for a conventional reversible cold rolling mill. 1 is the rolling direction, 2 is the rolled steel plate, 3 is the rolling mill (mill), 4
5 is a gauge meter control calculation circuit, 5 is a feed forward control calculation circuit, 6 is a reduction monitor control calculation circuit, 7 is a control output mixing circuit, 8 is a tension monitor control circuit, 9 is a thickness gauge, 10 is a tension meter, 11 is a load 12 is a non-interference tension control calculation circuit. In addition, the same symbols in the figures indicate the same or equivalent parts. Patent applicant Mitsubishi Electric Corporation (2 others)
Claims (1)
ニタ制御の組合せにより制御系を構成している可逆式冷
間圧延機の自動板厚制御装置において、上記ゲージメー
タ制御、フィードフォワード制御及び圧下モニタ制御の
各出力をミキシングした出力による圧下変化量から張力
変動量を予測するための圧下の張力に対する影響係数と
、上記圧下変化量及び上記影響係数により予測する上記
張力変動量に基づいて、張力変動が生じないように張力
補正量を演算して出力する微分器とを有する非干渉張力
制御演算回路とを備えたことを特徴とする可逆式冷間圧
延機の自動板厚制御装置。In an automatic plate thickness control device for a reversible cold rolling mill in which a control system is configured by a combination of gauge meter control, feedforward control, and reduction monitor control, each output of the gauge meter control, feedforward control, and reduction monitor control is Based on the influence coefficient on the tension of the reduction to predict the amount of tension fluctuation from the amount of change in the reduction due to the output of mixing the output, and the amount of tension fluctuation predicted by the amount of change in the reduction and the influence coefficient, 1. An automatic plate thickness control device for a reversible cold rolling mill, comprising: a differentiator that calculates and outputs a tension correction amount; and a non-interference tension control calculation circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2130615A JP2788328B2 (en) | 1990-05-21 | 1990-05-21 | Automatic thickness control device for reversible cold rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2130615A JP2788328B2 (en) | 1990-05-21 | 1990-05-21 | Automatic thickness control device for reversible cold rolling mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0428409A true JPH0428409A (en) | 1992-01-31 |
| JP2788328B2 JP2788328B2 (en) | 1998-08-20 |
Family
ID=15038458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2130615A Expired - Lifetime JP2788328B2 (en) | 1990-05-21 | 1990-05-21 | Automatic thickness control device for reversible cold rolling mill |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2788328B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010162553A (en) * | 2009-01-13 | 2010-07-29 | Hitachi Ltd | Device and method for controlling rolling mill |
| US10916938B2 (en) | 2016-08-01 | 2021-02-09 | Murata Manufacturing Co., Ltd. | ESD-protective surface-mount composite component |
| US10978249B2 (en) | 2017-02-17 | 2021-04-13 | Murata Manufacturing Co, Ltd. | Thin-film device and method of manufacturing thin-film device |
-
1990
- 1990-05-21 JP JP2130615A patent/JP2788328B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010162553A (en) * | 2009-01-13 | 2010-07-29 | Hitachi Ltd | Device and method for controlling rolling mill |
| US10916938B2 (en) | 2016-08-01 | 2021-02-09 | Murata Manufacturing Co., Ltd. | ESD-protective surface-mount composite component |
| US10978249B2 (en) | 2017-02-17 | 2021-04-13 | Murata Manufacturing Co, Ltd. | Thin-film device and method of manufacturing thin-film device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2788328B2 (en) | 1998-08-20 |
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