JPS59185516A - Automatic controlling method of plate thickness - Google Patents

Automatic controlling method of plate thickness

Info

Publication number
JPS59185516A
JPS59185516A JP58059933A JP5993383A JPS59185516A JP S59185516 A JPS59185516 A JP S59185516A JP 58059933 A JP58059933 A JP 58059933A JP 5993383 A JP5993383 A JP 5993383A JP S59185516 A JPS59185516 A JP S59185516A
Authority
JP
Japan
Prior art keywords
rolling
plate thickness
stand
deviation
rolling stand
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.)
Pending
Application number
JP58059933A
Other languages
Japanese (ja)
Inventor
Hiroshi Shibata
寛 柴田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Corp filed Critical Toshiba Corp
Priority to JP58059933A priority Critical patent/JPS59185516A/en
Publication of JPS59185516A publication Critical patent/JPS59185516A/en
Pending legal-status Critical Current

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
    • B21B37/16—Control of thickness, width, diameter or other transverse dimensions
    • B21B37/18—Automatic gauge control

Abstract

PURPOSE:To eliminate the error in detecting the plate thickness on the outlet side of a rolling stand with simple circuit constitution by correcting the rolling down position of the stand in accordance with the deviation in the plate thickness on the inlet side, the deviation in the plate thickness on the outlet side, rolling load and the deviation in the plate thickness of the outlet side detected from the rolling down position. CONSTITUTION:A delay circuit 1 for the transfer time of a material to be rolled receives the deviation signal DELTAhx(t) in the plate thickness from a plate thickness detector X, transfers a material L to be rolled in synchronization with the transfers thereof to a rolling stand R by the pulse synchronized with the roller revolution generated from a pulse generator PG and applies the signal to a plate thickness control circuit 2 provided in the rolling stand. The circuit 2 obtains the deviation in the plate thickness on the outlet side of the stand from the value obtd. by subtracting the detected value of the rolling load in the stage of starting the control from the detected value P of the rolling load received from a rolling load detector LC and the deviation DELTAhx(t') in the plate thickness received from the circuit 1. A rolling down signal S1 is applied to a rolling down control device HC in accordance with said signal, by which the driving for rolling down is accomplished.

Description

【発明の詳細な説明】 発明の技術分野 本発明は連就或は単−圧ｇ愼（二２ける目鯛板厚制イ卸
方法に関する。DETAILED DESCRIPTION OF THE INVENTION Technical Field of the Invention The present invention relates to a continuous or single-pressure method (22nd sea bream board thickness control method).

発明の技術的背景とその間：１点 圧延機（二おいては板厚を所望の埴（二側（却する為板
厚制御が笑施さ１１．ている。板厚１刈御は被圧延材の
１）雌込時あるいは操作員（二より与えらオ′シたタイ
ミング等に例えは下記のゲージメータ式（１）により算
出したスタンド出御］板厚を基ゴ昏イ反厚として殴矩す
る。Technical Background of the Invention and Intervals: A one-point rolling mill (one point rolling mill controls the thickness of the material to be rolled at the desired thickness). 1) At the time of insertion or by the operator (for example, the timing given by the operator, the stand output calculated using the gauge meter formula (1) below) do.

Ｐ　　　　　　　　・・・（１） Ｉ（０＝　　ｓｏ　７ ここで　ＨＯはスタンド出０ＩＩＩ也厚、Ｓｏは圧下位
置、Ｐは圧延荷重、Ｍはミル剛性係数　である。P...(1) I(0=so 7 where HO is the stand height, So is the rolling position, P is the rolling load, and M is the mill stiffness coefficient.

そして、圧延中は上記（１）式によりスタンド出側板厚
を算出しこのスタンド出側板厚の前記基準板′厚（二対
する偏差（二基づいて圧延スタンドの圧下位置を制御す
る。この圧延方法を一般にゲージメータ板厚制御という
。また（１）式によるスタンド出側板厚を次スタンド（
−移送し、次スタンド入側板厚の基準板厚（二対する偏
差（二基づいて次圧延スタンドの圧下位置を制御するこ
の圧延方法を一般にフィードフォワード板厚制御という
。（１）式のＳｏは検出圧下位置であるが実際の圧延装
置ではロール偏芯等のロール開度変態が存在しこのロー
ル回置変動（二対してＳｏは一定で圧延荷重Ｐの変動と
して検出される。この場合、（１）式による出側板厚は
実際の板厚の変化とは逆（−検出される。従ってゲージ
メータ板厚制御及びフィードフォワード板厚制御では制
御が逆（二行なわれ板厚を吏（−悪化させること（二な
る。During rolling, the plate exit side plate thickness from the stand is calculated using the above formula (1), and the rolling position of the rolling stand is controlled based on the deviation (2) of the plate exit side plate thickness from the stand with respect to the reference plate thickness (2). It is generally called gauge meter plate thickness control.Also, the plate thickness on the exit side of the stand by equation (1) is calculated from the next stand (
- This rolling method in which the rolling position of the next rolling stand is controlled based on the standard thickness (2 deviations) of the thickness at the entrance of the next stand is generally called feedforward thickness control. So in equation (1) is the detection Although it is the rolling position, in actual rolling equipment there is a roll opening transformation such as roll eccentricity, and this roll rotation variation (2) is detected as a variation in the rolling load P while So is constant. In this case, (1 ) equation is detected in the opposite direction to the actual thickness change.Therefore, in gauge meter thickness control and feedforward thickness control, control is performed in the opposite direction (-), and the change in thickness is reversed (-). That (two things)

発明の目的 本発明の目的は上記問題を解決するため（＝なされたも
ので、ゲージメータ板厚制御あるいはフィードフォワー
ド板厚制御（二おいてスタンド出側板厚を正しく推定す
ること（二よシ高精度（二側御できる自動板厚制御方法
を提供する事にある。OBJECT OF THE INVENTION The purpose of the present invention is to solve the above-mentioned problems. Accuracy (to provide an automatic plate thickness control method that can be controlled on two sides).

発明の概侠 本発明は上記の目的を達成するため長二次のような、溝
底となっている。即ち、圧延スタンドの入側シニ設けら
；ｔした実板厚検出器（二より検出さ２ｔた板厚偏差信
号を被圧延材の移送と同期させて圧延スタンドまで移送
し、この移送された圧延スタンドの入側板厚偏差の、制
御開始時点からの差と、圧下位置の制御開始時点からの
差、及び圧延荷重の１ｉｉＩＪ御開始時点からの差（二
よシ、圧下位置として検出されないロール開度ｆ鯛分を
求める挙（二より圧延スタンドの出側板厚の制御−始時
点からの偏差を正しく恢出し、板厚一定の制紹夏の副１
紳を行なう自動板厚制御方法である。コールドストリッ
プミルでは次のよう（二なる。SUMMARY OF THE INVENTION In order to achieve the above objects, the present invention provides a long-quadratic groove bottom. That is, the actual plate thickness deviation signal detected by the actual plate thickness detector (2t) provided at the entrance side of the rolling stand is transferred to the rolling stand in synchronization with the transfer of the rolled material, and the transferred rolled material is The difference in thickness deviation on the entrance side of the stand from the start of control, the difference in the rolling position from the start of control, and the difference in rolling load from the start of control (secondarily, the roll opening that is not detected as the rolling position) Steps to find the f sea bream (2) Control of the plate thickness at the exit side of the rolling stand - Correctly calculate the deviation from the starting point and control the plate thickness to a constant value 1
This is an automatic plate thickness control method that performs In the cold strip mill, the following (two types) are used.

△ｈｏ＝　ａｈΔｈｌ＋ａｍ（ΔＳｏ十△ｓ　）　　　
　　　　（１）Δへ＝（△ｓ６＋Δｓ　）　＋　ａｍ・
△ｐ（２）（２１，ｔ３）より　Δｈ０＝」φＬΔｐ−
□Δｈｉａ、−ｉ　　　ａ、−１” ここでΔｈｏ：出側板厚偏差（制御開始時点からの差）
ΔｈＩ；入側板厚偏差（） へｓｏ；圧下位置偏差（） ΔＳ；圧下位置（二て検出されないロール開度変動量ａ
ｈ　Ｉ入側板厚（二よる出側板厚への影響係数ａ、　　
＋ロール開度（二よる ａｍ　：圧延荷Ｍ（二よる 発明の実施例 以下本発明の一実施例を図面を参照しながら説明する。△ho=ahΔhl+am(ΔSo×△s)
(1) To Δ=(Δs6+Δs) + am・
From △p(2) (21, t3) Δh0=”φLΔp−
□Δhia, -i a, -1" Here, Δho: Output plate thickness deviation (difference from the start of control)
ΔhI; Inlet side plate thickness deviation () Toso; Rolling down position deviation () ΔS; Rolling down position (roll opening variation amount a that is not detected)
h I entry side plate thickness (influence coefficient a on exit side plate thickness due to 2)
+Roll opening degree (second am: rolling load M) Second embodiment of the invention An embodiment of the present invention will be described below with reference to the drawings.

本発明の一実施例における’＋ｔｉｌＪ御方法を簡明を
図るため、圧延スタンドが１台であるコールドストリッ
プミルの場合を例（−あげて説明する。　　　□第１図
は本発明に係る制御方法（二用いられる制御装置と圧延
機本体とを示したものである。圧延機本体は圧延スタン
ドＲと圧延機の圧下駆動を行なう油圧圧下装置Ｈを含む
。圧延スタンド８口は圧下位置を検出する圧下位置検出
器Ｓと圧延荷重を検出する圧延荷重検出器ＬＣが設けら
れている。In order to simplify the '+tilJ control method in one embodiment of the present invention, the case of a cold strip mill with one rolling stand will be given as an example (-). □ Fig. 1 shows the control method according to the present invention ( 2 shows the control device used and the main body of the rolling mill.The main body of the rolling mill includes a rolling stand R and a hydraulic rolling device H that drives the rolling mill.Eight rolling stands have a rolling machine that detects the rolling position. A position detector S and a rolling load detector LC for detecting rolling load are provided.

また、圧延スタンドの入側（二は板厚検出装置Ｘと搬送
テーブルローラ１回転毎（ニ一定数パルスを発生するパ
ルス発生装置ＰＧが設けられている。Further, on the entrance side of the rolling stand (2) a plate thickness detection device X and a pulse generator PG that generates a constant number of pulses every rotation of the conveying table roller (2) are provided.

被圧延材移送時間遅延回路１は板厚検出装置Ｘの板厚偏
差信号Δｈ、（ｇを受け、パルス発生゛装置ＰＧよシ発
生するローラ回転（二同期したパルス（二より圧延スタ
ンドＲまで被圧延材りの移送と同期させて移送し、圧延
スタンド（−設けられた板厚制御回路２（＝与える。板
厚制御回路２は圧延荷重検出器ＬＣよシ受ける圧延荷重
検出器ｐから制御開始時の圧延＃重役出値を差し引いた
値Δｐと、被圧延材移送時間遅延回路工よシ受ける板厚
偏差△ｈ。The rolling material transfer time delay circuit 1 receives the plate thickness deviation signal Δh, (g) from the plate thickness detecting device The plate thickness control circuit 2 (=provided) is transferred in synchronization with the transfer of the rolled material, and the plate thickness control circuit 2 starts control from the rolling load detector p which receives the rolling load from the rolling load detector LC. The value ∆p obtained by subtracting the rolling #executive price at the time of rolling, and the plate thickness deviation △h caused by the rolling material transfer time delay circuit.

（ｔ′）から制御開始時の遅延回路１よυ受けた板厚偏
差を差し引いた値Δｈ１からスタンド出側板厚偏差Δｈ
ｏを（４）式より得、これ（二基づき圧下制御装置ＨＣ
ｌ二圧下信号Ｓ、を与え圧イ駆動を行なう。(t') minus the plate thickness deviation received by the delay circuit 1 at the start of control Δh1 - stand exit side plate thickness deviation Δh
o is obtained from equation (4), and based on this (2) the reduction control device HC
A pressure reduction signal S is applied to perform pressure drive.

本発明は基本的４−スタンドの入側板厚変動を正しく検
出する事（二よりスタンドの出側板厚変動を正しく検出
するものである。従って連続スタンド（二於いても、最
上流スタンドの入側に実板厚検出器を設け、最上流スタ
ンドの入側板厚変動をこの実板厚検出器からの板厚偏差
信号を被圧延材の移送と同期させて最上流スタンドまで
移送し最上流スタンドの出側板厚ｒ本発明（二より正し
く検出すれば、これを次スタンドに板圧延材の移送と同
期させて次スタンド壕で移送し次スタンドの出側板厚を
、本発明（二よシ正しく検出できる。The present invention basically consists of four steps: Correctly detecting changes in plate thickness on the inlet side of the stand (2) Correctly detecting changes in plate thickness on the outlet side of the stand. An actual plate thickness detector is installed at If the exit side plate thickness r is detected correctly according to the present invention (second method), this is transferred to the next stand in the trench of the next stand in synchronization with the transfer of the plate rolled material to the next stand, and the exit side plate thickness of the next stand is detected correctly according to the present invention (second method). can.

発明の効果 以上の様（二不発明によれば簡単な回路構成（二より圧
下位置検出器からは直接検出されないロール回置変動（
−よるスタンド出側板厚検出誤差を消失する事ができ、
被圧延材の品質を高精度にする事ができる。The effect of the invention is beyond the effect of the invention (according to the invention, the simple circuit configuration (the roll rotation fluctuation which is not directly detected by the roll-down position detector)
− The error in detecting the plate thickness on the exit side of the stand can be eliminated.
The quality of rolled material can be made highly accurate.

【図面の簡単な説明】[Brief explanation of drawings]

図面は本発明（二係る自動板厚制御方法を具現化するた
めの概略図である。 Ｒ・・・圧延スタンド Ｈ・・・油圧圧下装置 ＨＣ・・・油圧圧下制御装置 Ｓ・・・圧下位置検出装置 ＬＣ・・・圧延荷重検出装置 ＰＧ・・・パルス発生装置 Ｘ・・・実板厚検出装置 Ｔ・・・搬送テーブルローラ Ｌ・・・被圧延材 １・・・被圧延材移送遅延回路 ２・・・板厚制御回路 ｐ・・・圧延荷重検出値 ８１・・・圧下駆動信号 △ｈ工（１）・・・実板厚偏差検出値The drawing is a schematic diagram for embodying the automatic plate thickness control method according to the present invention (second aspect). R...Rolling stand H...Hydraulic rolling down device HC...Hydraulic rolling down control device S... Rolling down position Detection device LC...Rolling load detection device PG...Pulse generator X...Actual plate thickness detection device T...Transport table roller L...Rolled material 1...Rolled material transfer delay circuit 2... Plate thickness control circuit p... Rolling load detection value 81... Rolling drive signal △h work (1)... Actual plate thickness deviation detection value

Claims (2)

【特許請求の範囲】[Claims] （１）　　圧延スターンドの出側板厚をそのスタンドの
圧延荷重、圧下位置から検出し、基準板厚との差である
スタンド検出板厚偏差に基いて圧延スタンドの圧下位置
を制御する自動板厚制御方法（二おいて、前記圧延スタ
ンドの入側に被圧延材の板）Ｅ）を検出する実板厚検出
器を設け、この実板厚検出器（二よシ検出された実板厚
偏差を被圧延材の移送と同期させて前記圧延スタンドま
で移送し、この移送した入側板厚偏差、前記圧延スタン
ドの圧下位置（＝よシ検出した出側板厚偏差及び前記圧
延スタンドの圧延荷重、圧下位置から検出した出側板厚
偏差（二基いて前記圧延スタンドの圧下位置、の補正を
行なうこと全特徴とする自動板］享制御方法。(1) Automatic plate thickness control that detects the exit plate thickness of a rolling stand from the rolling load and rolling position of that stand, and controls the rolling stand rolling position based on the stand-detected plate thickness deviation, which is the difference from the standard plate thickness. (2) An actual plate thickness detector is provided to detect the plate of the material to be rolled on the entrance side of the rolling stand. The material to be rolled is transferred to the rolling stand in synchronization with the transfer of the material to be rolled, and the transferred entrance side plate thickness deviation, rolling position of the rolling stand (= the detected exit side plate thickness deviation, rolling load of the rolling stand, rolling position) An automatic plate control method characterized by correcting the exit side plate thickness deviation detected from the rolling stand (the rolling position of the rolling stand using two units). （２）圧延スタンドの出側板厚をそのスタンドの圧延荷
重、圧下位置から検出し、この検出した出側板厚を被圧
延材の移送と同期させて次圧延スタンドまで整送し、こ
の移送した次圧延スタンドの入側板厚と基準板厚との偏
走（二基いて次圧延スタンドの圧下位置ｋ　ｉσｌ］御
ヂることを特徴とする自動板厚、１ｌｉｌＪＩＩ＋１方
法。(2) Detect the exit plate thickness of the rolling stand from the rolling load and rolling position of that stand, synchronize the detected exit plate thickness with the transfer of the rolled material to the next rolling stand, and transfer it to the next rolling stand. Automatic plate thickness, 1lilJII+1 method, characterized in that deviation between the entrance side plate thickness of the rolling stand and the reference plate thickness (rolling position k iσl of the next rolling stand using two units) is controlled.
JP58059933A 1983-04-07 1983-04-07 Automatic controlling method of plate thickness Pending JPS59185516A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58059933A JPS59185516A (en) 1983-04-07 1983-04-07 Automatic controlling method of plate thickness

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58059933A JPS59185516A (en) 1983-04-07 1983-04-07 Automatic controlling method of plate thickness

Publications (1)

Publication Number Publication Date
JPS59185516A true JPS59185516A (en) 1984-10-22

Family

ID=13127421

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58059933A Pending JPS59185516A (en) 1983-04-07 1983-04-07 Automatic controlling method of plate thickness

Country Status (1)

Country Link
JP (1) JPS59185516A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109092896A (en) * 2018-06-21 2018-12-28 太原科技大学 A kind of rolling device under electric pulse effect

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109092896A (en) * 2018-06-21 2018-12-28 太原科技大学 A kind of rolling device under electric pulse effect

Similar Documents

Publication Publication Date Title
US6112566A (en) Rolling method for rod-shaped rolling stock, Particularly rod steel or wire
JPS59185516A (en) Automatic controlling method of plate thickness
CA1114922A (en) Method and apparatus for correcting camber in rolled metal workpiece
GB1072866A (en) Rolling mill control apparatus
ES8306618A1 (en) Method and apparatus for automatic mill zero correction for strip width
JPH0576366B2 (en)
EP0248605A1 (en) Roll adjustment method
JPS59110410A (en) Method and device for controlling tension of rolling material and position of looper in continuous hot mill
JPH069702B2 (en) Plate thickness control method for hot continuous rolling mill
JPS5819367B2 (en) Strip No Tsuisekihouhou
JPS62124011A (en) Automatic plate thickness control device
RU2075358C1 (en) Method of controlling metal speed in multistand mill for continuous hot rolling with provision of minimum traction efforts in metal taking into account non-uniform heating of metal by its length
JPH07204722A (en) Method for controlling strip position by automatic level adjusting device
JPS5913519A (en) Speed controlling method of distortion leveling machine
JPH04100624A (en) Method for controlling sheet thickness and shape on hot continuous rolling mill
JPS6241805B2 (en)
JPH0262327B2 (en)
JPS6320120A (en) Automatic plate thickness control device
JPH06339717A (en) Method for controlling meandering of camber in hot rolling
JPH0585250B2 (en)
JPH03174912A (en) Control method of meandering of strip
JPS63112012A (en) Automatic plate thickness controller
JPS5973111A (en) Automatic controlling device of sheet thickness
JPH0362484B2 (en)
JPH01186208A (en) Automatic plate thickness control device for rolling mill