JP2650316B2 - Strip shape detector - Google Patents
Strip shape detectorInfo
- Publication number
- JP2650316B2 JP2650316B2 JP63122755A JP12275588A JP2650316B2 JP 2650316 B2 JP2650316 B2 JP 2650316B2 JP 63122755 A JP63122755 A JP 63122755A JP 12275588 A JP12275588 A JP 12275588A JP 2650316 B2 JP2650316 B2 JP 2650316B2
- Authority
- JP
- Japan
- Prior art keywords
- warp
- strip
- warpage
- equivalent
- total
- 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
Landscapes
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は帯板の長手方向に発生する板反り（以下Ｌ反
りという）及び板幅方向に発生する板反り（以下Ｃ反り
という）をオンラインで自動的且つ正確に測定し得るよ
うにした帯板形状検出装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to on-line processing of a sheet warpage (hereinafter referred to as L warpage) generated in a longitudinal direction of a strip and a sheet warpage (hereinafter referred to as C warpage) generated in a sheet width direction. The present invention relates to a strip shape detecting device capable of automatically and accurately measuring the shape of a strip.
［従来の技術］ 圧延後の帯板の平坦度を矯正するために、従来からレ
ベラが使用されているが、レベラで平坦度矯正を行った
帯板には、Ｌ反りやＣ反りが生じることがある。[Prior Art] A leveler has been conventionally used to correct the flatness of a strip after rolling. However, a strip subjected to flatness correction by the leveler may have L warp or C warp. There is.
このため、従来はレベラで平坦度の矯正を行った帯板
を後工程で切断機により切断してサンプリングを行い、
サンプリングした板のＬ反り、Ｃ反りを実測し、その結
果からレベリングロールの圧下量を調整することが行わ
れている。For this reason, in the past, the strip was flattened with a leveler, and the strip was cut in a post-process using a cutting machine for sampling.
L-warp and C-warp of a sampled plate are actually measured, and the amount of reduction of the leveling roll is adjusted based on the results.
ところが、従来は板のサンプリング、Ｌ反り、Ｃ反り
の実測、レベラのＬ反り矯正ロール、Ｃ反り矯正ロール
の調整は作業員が行っており、従って作業が大変で、し
かも安全性が悪く、更にサンプリングした板は定盤等の
平らな面に置いて測定するため自重により撓んで測定精
度も良くない等の問題があった。However, conventionally, the sampling of the board, the measurement of the L warp and the C warp, and the adjustment of the L warp straightening roll and the C warp straightening roll of the leveler are performed by an operator, so that the work is difficult and the safety is poor. Since the sampled plate is placed on a flat surface such as a surface plate for measurement, there is a problem in that the plate is bent by its own weight and measurement accuracy is not good.
そこで、最近ではＬ反り、Ｃ反りを自動的且つ正確に
検出してその値に応じレベラを自動制御することが種々
検討されている。Therefore, recently, various studies have been made to automatically and accurately detect L warpage and C warpage and automatically control the leveler in accordance with the detected values.
［発明が解決しようとする課題］ 而して、Ｌ反り矯正ロール、Ｃ反り矯正ロールを自動
制御してＬ反り、Ｃ反りをなくすには、レベラから送出
された板のＬ反り、Ｃ反りをオンラインで自動的且つ正
確に測定する必要があるが、現時点ではまだＬ反り、Ｃ
反りをオンラインで自動的且つ正確に測定できるものは
提案されていない。[Problems to be Solved by the Invention] In order to eliminate the L warp and the C warp by automatically controlling the L warp straightening roll and the C warp straightening roll, the L warp and the C warp of the plate sent from the leveler must be eliminated. It is necessary to measure automatically and accurately online, but at this time L warp, C
There is no proposal that can measure the warpage automatically and accurately online.
本発明は上述の実情に鑑み、帯板長手方向に発生する
Ｌ反り、帯板幅方向に生じるＣ反りをオンラインで自動
的且つ正確に測定し得るようにすることを目的としてな
したものである。SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to be able to automatically and accurately measure L warpage occurring in the longitudinal direction of a strip and C warping occurring in the width direction of a strip online. .
［課題を解決するための手段］ 本発明は帯板が上下方向へ送られるラインに上下へ所
要の間隔を置いて設けられ水平線に対して同一方向へ略
同一の傾きで傾くよう配設された２組の方向変換用ピン
チロールと、該上下の方向変換用ピンチロール間に上下
へ所要の間隔で配設され且つ帯板の進行形状を測定する
ようにした複数の非接触式の変位検出器と、該変位検出
器で測定されたデータから帯板長手方向へ生じているＬ
反りを求める演算装置と、該演算装置で求めたＬ反りか
ら該Ｌ反りに対応した板幅方向のＣ反りを求める等価Ｃ
反り演算装置と、前記方向変換用ピンチロールのうち下
流側の方向変換用ピンチロールよりも下流側に帯板幅方
向へ所要の間隔で配設され且つ帯板表面までの距離を測
定するようにした３個以上の非接触式の変位検出器と、
該変位検出器で測定されたデータから帯板幅方向へ生じ
ているＣ反りを求める総Ｃ反り演算装置と、該総Ｃ反り
演算装置からの総Ｃ反り及び前記等価Ｃ反り演算装置か
らの等価Ｃ反りから実Ｃ反りを求める実Ｃ反り演算装置
を設けた構成を備えている。[Means for Solving the Problems] In the present invention, a strip is provided at a required interval vertically in a line sent in a vertical direction, and is disposed so as to be inclined with substantially the same inclination in the same direction with respect to a horizontal line. Two sets of direction-changing pinch rolls, and a plurality of non-contact type displacement detectors arranged between the upper and lower direction-changing pinch rolls at required intervals up and down and measuring the traveling shape of the strip. And L generated in the longitudinal direction of the strip from the data measured by the displacement detector.
An arithmetic unit for determining the warp, and an equivalent C for obtaining a C-warp in the sheet width direction corresponding to the L-warp from the L-warp obtained by the arithmetic unit
The warp calculating device is arranged at a required interval in the band width direction on the downstream side of the direction changing pinch roll on the downstream side of the direction changing pinch roll and measures the distance to the band plate surface. Three or more non-contact displacement detectors,
A total C-warp calculating device for obtaining a C-warp generated in the strip width direction from the data measured by the displacement detector, a total C-warp from the total C-warp calculating device, and an equivalent from the equivalent C-warping calculating device It has a configuration provided with an actual C warpage calculating device for obtaining the actual C warp from the C warp.
［作用］ 本発明では、方向変換用ピンチロール間に上下へ所要
の間隔で配設された２組の変位検出器により帯板の進行
形状が求められ、該形状からＬ反りが求められ、前記方
向変換用ピンチロールのうち下流側の方向変換用ピンチ
ロールよりも下流側に帯板幅方向に所要の間隔で配設さ
れた変位検出器により帯板の幅方向形状が求められ、該
形状から総Ｃ反りが求められ、前記Ｌ反りから等価Ｃ反
りが求められ、該等価Ｃ反りと前記総Ｃ反りから実Ｃ反
りが求められる。[Operation] In the present invention, the traveling shape of the strip is determined by two sets of displacement detectors disposed at predetermined intervals vertically between the direction changing pinch rolls, and L warpage is determined from the shape. Of the direction changing pinch rolls, the width direction shape of the band is obtained by a displacement detector arranged at a required interval in the band width direction on the downstream side of the direction changing pinch roll on the downstream side, from the shape. A total C warp is obtained, an equivalent C warp is obtained from the L warp, and an actual C warp is obtained from the equivalent C warp and the total C warp.
［実 施 例］ 以下、本発明の実施例を添付図面を参照しつつ説明す
る。Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
第１図〜第３図は本発明の一実施例で、図示してない
レベラの下流側には、帯板３が垂直方向へ送られるよ
う、上下に所要の間隔をおいて２組の方向転換用ピンチ
ロール1,2を配設する。各ピンチロール1,2は２本のロー
ル1a,1b,2a,2bを備え、ロール1aと1bの中心を結ぶ直線l
1及びロール2aと2bの中心を結ぶ直線l2は水平線に対し
傾き、且つ直線l1とl2は略平行になっている。ロール1
a,1bと2a,2bを同じ方向へ略同じ角度だけ傾けて配置す
るのは、帯板３にＬ反りがある場合、帯板３に対しピン
チロール1,2間でＬ反りの大きさに比例する大きさの円
弧を有するＳ字状の曲線を与えるためである。FIGS. 1 to 3 show an embodiment of the present invention, in which two sets of directions are provided at a required interval vertically so that the strip 3 is fed vertically in a downstream side of a not-shown leveler. The conversion pinch rolls 1 and 2 are provided. Each pinch roll 1, 2 has two rolls 1a, 1b, 2a, 2b, and a straight line l connecting the centers of the rolls 1a and 1b.
1 and the straight line l 2 connecting the centers of the rolls 2a and 2b are made substantially the slope and the straight line l 1 and l 2 is with respect to the horizontal line parallel. Roll 1
When a, 1b and 2a, 2b are inclined in the same direction at substantially the same angle, when the strip 3 has an L warp, the size of the L warp between the pinch rolls 1 and 2 with respect to the strip 3 is reduced. This is for giving an S-shaped curve having an arc of a proportional size.
ピンチロール1,2間に、帯板３表面までの距離を測定
する２組の変位検出器4,5を上下方向へ所要の間隔を置
いて配設する。変位検出器4,5は非接触式変位計とし、
例えば、渦電流式、超音波式等を使用する。Between the pinch rolls 1 and 2, two sets of displacement detectors 4 and 5 for measuring the distance to the surface of the strip 3 are arranged at predetermined intervals in the vertical direction. The displacement detectors 4 and 5 are non-contact displacement meters,
For example, an eddy current type, an ultrasonic type, or the like is used.
変位検出器4,5で検出した帯板３表面までの距離x,yは
演算装置６内の比較器７に与え得るようになっており、
比較器７で求めた偏差ｚは演算装置６内の関数発生器８
に与えられ、関数発生器８では偏差ｚをもとにＬ反りの
方向及び大きさｆ（ｚ）を求め、求めたＬ反りの方向及
び大きさｆ（ｚ）は等価Ｃ反り演算装置11へ与え得るよ
うになっていると共に図示してない装置に与え得るよう
になっている。The distances x and y to the surface of the strip 3 detected by the displacement detectors 4 and 5 can be given to the comparator 7 in the arithmetic unit 6,
The deviation z obtained by the comparator 7 is calculated by the function generator 8 in the arithmetic unit 6.
And the function generator 8 calculates the direction and magnitude f (z) of the L-warp based on the deviation z, and sends the direction and magnitude f (z) of the L-warp to the equivalent C-warp calculator 11. And to a device not shown.
偏差ｚとＬ反りの方向及び大きさｆ（ｚ）の関係は、
第２図に示すように、予め実験で求めるか或いは理論解
析により求め、関数発生器８に入力しておく。The relationship between the deviation z and the direction and magnitude f (z) of the L warpage is
As shown in FIG. 2, it is obtained in advance by an experiment or by a theoretical analysis and input to the function generator 8 in advance.
下流側の方向変換用ピンチロール２と該ピンチロール
２よりも下流側に設けたピンチロール９の中間部に、第
３図に拡大して示すごとく帯板３表面までの距離xa,xb,
xcを検出する変位検出器10a,10b,10cを帯板幅方向へ所
要の間隔で３個以上配設する。変位検出器10a,10b,10c
は非接触式であり、例えば渦電流式、超音波式等を使用
する。The distance xa, xb, to the surface of the strip 3 as shown in the enlarged view of FIG. 3 is provided at an intermediate portion between the direction change pinch roll 2 on the downstream side and the pinch roll 9 provided downstream of the pinch roll 2.
Three or more displacement detectors 10a, 10b, 10c for detecting xc are arranged at required intervals in the strip width direction. Displacement detectors 10a, 10b, 10c
Is a non-contact type, for example, an eddy current type, an ultrasonic type or the like is used.
変位検出器10a,10b,10cで検出した帯板３表面までの
距離xa,xb,xcを総Ｃ反り演算装置12へ与え得るように
し、総Ｃ反り演算装置12で求めた総Ｃ反りC0及び等価Ｃ
反り演算装置11で求めた等価Ｃ反りCeq.を実Ｃ反り演算
装置13へ与え得るようにする。The distances xa, xb, xc to the surface of the strip 3 detected by the displacement detectors 10a, 10b, 10c can be given to the total C warp calculator 12, and the total C warp C 0 obtained by the total C warp calculator 12 can be provided. And the equivalent C
The equivalent C warp C eq . Obtained by the warp calculator 11 can be given to the actual C warp calculator 13.
運転時には、帯板３はピンチロール1,2,9に挟まれて
矢印イに示すごとく垂直方向上方から下方へ送給され、
変位検出器4,5により帯板３表面までの距離x,yが検出さ
れて比較器７へ送られ、比較器７では距離x,yの偏差ｚ
がｚ＝ｘ−ｙにより求められて関数発生器８に与えら
れ、関数発生器８から偏差ｚに対応したＬ反りの方向及
び大きさｆ（ｚ）が出力されて等価Ｃ反り演算装置11へ
与えられると共に図示してない装置へ指令信号として与
えられる。Ｌ反りの方向はｆ（ｚ）の正負により定ま
る。例えばｘ＝x1、ｙ＝y1とすると、偏差はz1＝x1−y1
になり、Ｌ反りはｆ（z1）となる。又Ｌ反りの方向はｆ
（z1）＞０の場合、帯板３は第１図において左側へ凸に
反り、ｆ（z1）＜０の場合は右側へ凸に反ることにな
る。このようにしてＬ反りを求めることによりオンライ
ンで自動的に正確なＬ反りの検出が可能となる。During operation, the strip 3 is sandwiched between the pinch rolls 1, 2, and 9 and is fed vertically downward from above as shown by the arrow A,
The distances x, y to the surface of the strip 3 are detected by the displacement detectors 4, 5 and sent to the comparator 7, where the deviation z of the distance x, y is determined.
Is obtained by z = xy and given to the function generator 8, and the direction and magnitude f (z) of the L warp corresponding to the deviation z are output from the function generator 8 and sent to the equivalent C warp calculator 11. And a command signal to a device not shown. The direction of L warpage is determined by the sign of f (z). For example, if x = x 1 and y = y 1 , the deviation is z 1 = x 1 −y 1
And the L warpage becomes f (z 1 ). The direction of L warp is f
When (z 1 )> 0, the strip 3 warps to the left in FIG. 1, and when f (z 1 ) <0, the strip 3 warps to the right. By obtaining the L warpage in this way, it is possible to automatically and accurately detect the L warpage online.
演算装置６の関数発生器８から出力されて等価Ｃ反り
演算装置11へ与えられたＬ反りの方向及び大きさｆ
（ｚ）を基に、等価Ｃ反り演算装置11ではＬ反りと等価
のＣ反りCeq.が求められ、求められたＣ反りCeq.は実Ｃ
反り演算装置13へ与えられる。Ｌ反りと等価のＣ反りC
eq.を求めるのは、Ｌ反りがあると、Ｃ反りに影響を与
えるため、その影響を排除するためである。The direction and magnitude f of the L-warp output from the function generator 8 of the arithmetic unit 6 and given to the equivalent C-warp arithmetic unit 11
Based on (z), the equivalent C warp calculator 11 calculates a C warp C eq . Equivalent to the L warp, and the obtained C warp C eq .
It is provided to the warp calculation device 13. C warp C equivalent to L warp
The reason for obtaining eq . is to eliminate the influence of L warpage because it affects C warpage.
一方、変位検出器10a,10b,10cで測定された帯板３表
面までの距離xa,xb,xcは総Ｃ反り演算装置12へ与えら
れ、該装置12で総Ｃ反りC0がC0＝xa−xb＋xc/2で求めら
れて実Ｃ反り演算装置13へ与えられ、該装置13におい
て、実Ｃ反りC1がC1＝C0−Ceq.により求められ、図示し
てない装置へ指令信号として出力される。On the other hand, the distances xa, xb, xc to the surface of the strip 3 measured by the displacement detectors 10a, 10b, 10c are given to the total C warpage calculating device 12, where the total C warp C 0 is C 0 = xa−xb + xc / 2 and is given to the actual C warp calculating device 13 where the actual C warp C 1 is obtained by C 1 = C 0 −C eq . Output as a signal.
このようにＣ反りを求めることにより、オンラインで
自動的且つ正確なＣ反りの検出が可能である。By determining the C-warp in this way, it is possible to automatically and accurately detect the C-warp online.
又上述のごとく、オンラインでＬ反り、Ｃ反りを自動
的且つ正確に求めることができるため、この情報をレベ
ラに与えることによりフィードバック制御ループにより
板反りを自動的に制御することができる。Further, as described above, since the L warp and the C warp can be obtained automatically and accurately online, the board warp can be automatically controlled by a feedback control loop by providing this information to the leveler.
なお、本発明は上述の実施例に限定されるものではな
く、本発明の要旨を逸脱しない範囲内で種々変更を加え
得ることは勿論である。It should be noted that the present invention is not limited to the above-described embodiment, and it is needless to say that various changes can be made without departing from the spirit of the present invention.
［発明の効果］ 本発明の帯板形状検出装置によれば、Ｌ反り、Ｃ反り
をオンラインで自動的且つ正確に測定することが可能と
なるという優れた効果を奏し得る。[Effects of the Invention] According to the strip shape detecting apparatus of the present invention, an excellent effect that it is possible to automatically and accurately measure L warpage and C warpage online can be obtained.
第１図は本発明の一実施例を表わすブロック図、第２図
は第１図のＬ反り検出用の変位検出器で検出された偏差
とＬ反りの関係を表わすグラフ、第３図は第１図のＣ反
り検出用の変位検出器の斜視図である。 図中1,2は方向転換用ピンチロール、３は帯板、4,5は変
位検出器、６は演算装置、７は比較器、８は関数発生
器、10a,10b,10cは変位検出器、11は等価Ｃ反り演算装
置、12は総Ｃ反り演算装置、13は実Ｃ反り演算装置を示
す。FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a graph showing a relationship between a deviation detected by a displacement detector for detecting L warpage in FIG. 1 and L warpage, and FIG. FIG. 2 is a perspective view of a displacement detector for detecting C warpage in FIG. 1. In the figure, 1 and 2 are pinch rolls for direction change, 3 is a strip, 4 and 5 are displacement detectors, 6 is an arithmetic unit, 7 is a comparator, 8 is a function generator, and 10a, 10b and 10c are displacement detectors. , 11 denotes an equivalent C-warp calculation device, 12 denotes a total C-warp calculation device, and 13 denotes a real C-warp calculation device.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 塩崎 宏行 神奈川県横浜市磯子区新中原町１番地 石川島播磨重工業株式会社横浜第二工場 内 (56)参考文献 特開 昭62−54116（ＪＰ，Ａ) 実開 昭56−82633（ＪＰ，Ｕ) ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Hiroyuki Shiozaki 1st Shin-Nakahara-cho, Isogo-ku, Yokohama-shi, Kanagawa Pref. ) Japanese Utility Model Showa 56-82633 (JP, U)
Claims (1)
所要の間隔を置いて設けられ水平線に対して同一方向へ
略同一の傾きで傾くよう配設された２組の方向変換用ピ
ンチロールと、該上下の方向変換用ピンチロール間に上
下へ所要の間隔で配設され且つ帯板の進行形状を測定す
るようにした複数の非接触式の変位検出器と、該変位検
出器で測定されたデータから帯板長手方向へ生じている
Ｌ反りを求める演算装置と、該演算装置で求めたＬ反り
から該Ｌ反りに対応した板幅方向のＣ反りを求める等価
Ｃ反り演算装置と、前記方向変換用ピンチロールのうち
下流側の方向変換用ピンチロールよりも下流側に帯板幅
方向へ所要の間隔で配設され且つ帯板表面までの距離を
測定するようにした３個以上の非接触式の変位検出器
と、該変位検出器で測定されたデータから帯板幅方向へ
生じているＣ反りを求める総Ｃ反り演算装置と、該総Ｃ
反り演算装置からの総Ｃ反り及び前記等価Ｃ反り演算装
置からの等価Ｃ反りから実Ｃ反りを求める実Ｃ反り演算
装置を設けたことを特徴とする帯板形状検出装置。1. A set of direction-changing pinches in which strips are provided at predetermined intervals in a line to be sent in the vertical direction and are inclined at substantially the same inclination in the same direction with respect to a horizontal line. Roll, a plurality of non-contact type displacement detectors arranged at required intervals up and down between the vertical direction changing pinch rolls and measuring the traveling shape of the strip, and the displacement detector An arithmetic unit for determining L warpage occurring in the longitudinal direction of the strip from the measured data; and an equivalent C-warp arithmetic unit for calculating C warp in the sheet width direction corresponding to the L warp from the L warp obtained by the arithmetic unit. Three or more of the direction-changing pinch rolls, which are arranged at required intervals in the strip width direction on the downstream side of the direction-changing pinch rolls on the downstream side and measure the distance to the strip surface. Non-contact type displacement detector and the displacement detector A total C warpage calculation device for determining the C warpage occurring from the constant data to the strip width direction, said total C
An apparatus for detecting a strip shape, comprising a real C-warp calculating device for obtaining a real C-warp from the total C-warp from the warp calculating device and the equivalent C-warp from the equivalent C-warping calculating device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63122755A JP2650316B2 (en) | 1988-05-19 | 1988-05-19 | Strip shape detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63122755A JP2650316B2 (en) | 1988-05-19 | 1988-05-19 | Strip shape detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01292208A JPH01292208A (en) | 1989-11-24 |
| JP2650316B2 true JP2650316B2 (en) | 1997-09-03 |
Family
ID=14843808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63122755A Expired - Fee Related JP2650316B2 (en) | 1988-05-19 | 1988-05-19 | Strip shape detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2650316B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT513245B1 (en) * | 2012-12-11 | 2014-03-15 | Siemens Vai Metals Tech Gmbh | Flatness measurement and measurement of residual stresses for a metallic flat product |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5682633U (en) * | 1979-11-30 | 1981-07-03 | ||
| JPS6254116A (en) * | 1985-09-02 | 1987-03-09 | Kawasaki Steel Corp | Shape measuring method for hot plate material |
-
1988
- 1988-05-19 JP JP63122755A patent/JP2650316B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT513245B1 (en) * | 2012-12-11 | 2014-03-15 | Siemens Vai Metals Tech Gmbh | Flatness measurement and measurement of residual stresses for a metallic flat product |
| AT513245A4 (en) * | 2012-12-11 | 2014-03-15 | Siemens Vai Metals Tech Gmbh | Flatness measurement and measurement of residual stresses for a metallic flat product |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01292208A (en) | 1989-11-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |