JPH0348710A - Inter-travel shape detecting method, inter-travel selecting method, and shape correcting method for steel plate - Google Patents
Inter-travel shape detecting method, inter-travel selecting method, and shape correcting method for steel plateInfo
- Publication number
- JPH0348710A JPH0348710A JP18361889A JP18361889A JPH0348710A JP H0348710 A JPH0348710 A JP H0348710A JP 18361889 A JP18361889 A JP 18361889A JP 18361889 A JP18361889 A JP 18361889A JP H0348710 A JPH0348710 A JP H0348710A
- Authority
- JP
- Japan
- Prior art keywords
- steel plate
- tip
- height
- steel
- warpage
- 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
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 134
- 239000010959 steel Substances 0.000 title claims abstract description 134
- 238000000034 method Methods 0.000 title claims description 24
- 238000010008 shearing Methods 0.000 claims abstract description 10
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims 1
- 230000005484 gravity Effects 0.000 description 4
- 238000005070 sampling Methods 0.000 description 3
- 239000005028 tinplate Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Length Measuring Devices By Optical Means (AREA)
- Straightening Metal Sheet-Like Bodies (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は、搬送中の鋼板の長手方向の反りを検出する鋼
板の走間形状検出方法、搬送中のｍ板の長手方向の反り
を検出して反りの大きい鋼板が製品中に混入するのを防
止する鋼板の走間選別方法、並びにｍ帯しベラを配置し
た銅帯の剪断ラインにおいて搬送中の鋼板の長手方向の
反りを検出して一仮の反りを矯正する鋼板の形状矯正方
法に関するものであり、特にＦｉｖ鋼板に対して好適な
ものである。[Detailed Description of the Invention] <Industrial Application Field> The present invention provides a method for detecting the running shape of a steel plate for detecting warpage in the longitudinal direction of a steel plate during transport, and a method for detecting warpage in the longitudinal direction of an m-plate during transport. A method for sorting steel sheets during running to prevent steel sheets with large warpage from being mixed into products, and a method for detecting warpage in the longitudinal direction of steel sheets being conveyed in a copper strip shearing line equipped with an m-banding spatula. The present invention relates to a method for correcting the shape of a steel plate to correct temporary warping, and is particularly suitable for FIV steel plates.
〈従来の技術〉
従来のシート状に剪断された薄＃！Ｊ仮の長手方向の反
りは、調帯の剪断ラインで剪断された鋼板を抜き取り、
第４図に示すように、鋼板１の長手方向側縁２２を水平
にして反り測定台２３に吊り下げ、ピアノ腺２４をかけ
渡して長手方向の反り値Ｃを測定していた。<Conventional technology> Thin # sheared into conventional sheets! J Temporary longitudinal warpage is achieved by extracting the steel plate that has been sheared at the shear line of the adjustment zone.
As shown in FIG. 4, the longitudinal side edges 22 of the steel plate 1 were held horizontally and suspended on a warp measuring stand 23, and the piano gland 24 was stretched over the steel plate 1 to measure the warp value C in the longitudinal direction.
〈発明が解決しようとする課題〉
しかし、この方°法では、鋼板の反りを連続検査するこ
とができず、極めて非能率である。更に、ｆｉｌ［１！
ｌ仮の反りは前工程でのコイルの巻き取り張力等の変化
によってコイルの長手方向で変化するため、このような
抜き取り検査では、製品中に不連続で混入する反りの大
きい鋼板を除くことができなかった。<Problems to be Solved by the Invention> However, with this method, it is not possible to continuously inspect the warpage of the steel plate, and it is extremely inefficient. Furthermore, fil[1!
l Temporary warping changes in the longitudinal direction of the coil due to changes in coil winding tension, etc. in the previous process, so this kind of sampling inspection makes it impossible to remove large warped steel sheets that are discontinuously mixed into the product. could not.
なお、特開昭５０−１２６２５８、同特開昭５２−３７
４６２号公報には、光学的手段によって平板の反りを測
定１°る方法が開示されているが、これらの方法の測定
対象は、いずれも厚鋼板のように、形状がベルトコンベ
ヤや搬送ローラ上で重力や磁力によって変化しない平板
であり、上記の公開公報の方法では、ベルトコンベトや
搬送ローラ上で重力や磁力によって形状が平坦になって
しまうシート状に剪断された薄鋼板の反りは測定するこ
とができない。In addition, Japanese Patent Application Publication No. 50-126258 and Japanese Patent Application Publication No. 52-37
Publication No. 462 discloses a method of measuring the warpage of a flat plate by 1 degree using optical means, but in all of these methods, the object to be measured, such as a thick steel plate, is shaped like a belt conveyor or conveyor roller. It is a flat plate that does not change due to gravity or magnetic force, and the method described in the above publication cannot measure the warpage of a thin steel plate that has been sheared into a sheet shape that becomes flat due to gravity or magnetic force on a conveyor belt or conveyor roller. I can't.
このような薄鋼板の長手方向の反り値Ｃを検出する手段
は、未だに開発されていない実情にあり、前記の第４図
のような手段で測定するはかなく、前述したような問題
があった。A means for detecting the warp value C in the longitudinal direction of a thin steel sheet has not yet been developed, and the method shown in FIG. 4 is ephemeral and has the problems described above.
本発明は、このような問題を解決した鋼板の走間形状検
出方法、これを利用した鋼板の走間選別方法並びに鋼板
の形状矯正方法を提供することを目的とする。SUMMARY OF THE INVENTION An object of the present invention is to provide a method for detecting the running shape of a steel plate, a method for sorting the running length of a steel plate using the same, and a method for correcting the shape of a steel plate.
く課題壱解決するための手段〉
第１の発明は、搬送中の鋼板の先＠部が拘束された状態
から開放された状態へ移行する際に、非接触に鋼板の先
端高さを測定すると共に鋼板の通過速度を測定し、これ
ら測定した鋼板の先端高さ１と鋼板の通過速度から、鋼
板の長手方向の反りを検出することを特徴とする鋼板の
走間形状検出方法である。Means for Solving Problem 1> The first invention measures the height of the tip of a steel plate in a non-contact manner when the tip of the steel plate being conveyed changes from a restrained state to a released state. This method of detecting the running shape of a steel plate is characterized in that the passing speed of the steel plate is measured, and warpage in the longitudinal direction of the steel plate is detected from the measured tip height 1 of the steel plate and the passing speed of the steel plate.
第２の発明は、搬送中の鋼板の先端部が拘束された状態
から開放された状態へ移行する際に、非接触に鋼板の先
端高さを測定すると共に鋼板の通過速度を測定し、これ
ら測定した鋼板の先端高さと鋼板の通過速度から、鋼板
の長手方向の反りを検出し、検出した反り値が規準値か
ら外れた鋼板を鋼板の搬送ラインから除去することを特
徴とする鋼板の選別方法である。The second invention measures the height of the tip of the steel plate in a non-contact manner and the passing speed of the steel plate when the tip of the steel plate is transferred from a restrained state to a released state. Steel plate sorting characterized by detecting warpage in the longitudinal direction of the steel plate from the measured tip height of the steel plate and the passing speed of the steel plate, and removing steel plates whose detected warp value deviates from a standard value from a steel plate conveyance line. It's a method.
また、第３の発明は、上流にａｌｌ（ＩＦレベラを配置
した鋼帯の剪断ライ、ンにおいて、搬送中の鋼板の先端
部が拘束された状態から開放された状態へ移行する際に
、非接触に鋼板の先端高さを測定すると共に鋼板の通過
速度を測定し、これら測定した鋼板の先端高さと鋼板の
通過速度から、鋼板の長手方向の反りを検出し、検出し
た反り値を前記鋼４１）レベラの制御装置にフィードバ
ックし、前記鋼帯レベラによる反り矯正量を調整するこ
とを特徴とする鋼板の形状矯正方法である。Further, the third invention is a steel strip shearing line in which an IF leveler is disposed upstream, and when the tip of the steel plate being conveyed changes from a restrained state to a released state. The height of the tip of the steel plate in contact is measured, and the speed of passing the steel plate is measured. From the measured tip height of the steel plate and the passing speed of the steel plate, warpage in the longitudinal direction of the steel plate is detected, and the detected warpage value is calculated as the 41) A method for straightening the shape of a steel plate, characterized in that the amount of warp straightening by the steel strip leveler is adjusted by feeding back to a leveler control device.
く作 川〉 本発明の原理を以下説明する。Kusaku river The principle of the present invention will be explained below.
シート状に剪断された薄鋼板は、ベルトコンベヤや搬送
ローラ上では、重力や磁力によって形状が平坦になって
しまい、鋼板の反りが現れない。When a thin steel plate that has been sheared into a sheet shape is placed on a belt conveyor or conveyance roller, its shape becomes flat due to gravity and magnetic force, and no warping of the steel plate appears.
しかし、本発明者らは鋭意検討の結果、鋼帯の剪断ライ
ンの剪断機や鋼板を振り分けるベルトコンベヤのゲート
部、鋼板を積み重ねるパイラ一部等で鋼板の先端がベル
トコンベヤやロールから離れた際に、即ち搬送中の鋼板
の先端部が拘束された状態から開放された状態へ移行す
る際に、ベルトコンベヤやロールの拘束を受けない鋼板
の先端高さに、鋼板の長手方向の反゛りと鋼板の先端部
が開放された瞬間から鋼板の先端高さを測定するまでの
時間の影響が現れることを見出した。However, as a result of intensive study, the inventors of the present invention found that when the tip of a steel plate separates from the belt conveyor or roll in a shearing machine on a steel strip shearing line, a gate part of a belt conveyor that distributes steel plates, a part of a piler that stacks steel plates, etc. In other words, when the tip of the steel plate being conveyed moves from a restrained state to a released state, the height of the tip of the steel plate, which is not restrained by the belt conveyor or rolls, causes a longitudinal warpage of the steel plate. It was found that there is an effect of the time from the moment the tip of the steel plate is released until the height of the tip of the steel plate is measured.
このことから、鋼板の先端部が拘束されていない状態に
おける鋼板の先端高さを非接触に測定すると共に鋼板の
通過速度を測定し、これらの測定値から鋼板の長手方向
の反り値Ｃを求めることができる。From this, the height of the tip of the steel plate in a state where the tip of the steel plate is not restrained is measured in a non-contact manner, the passing speed of the steel plate is measured, and the warp value C in the longitudinal direction of the steel plate is determined from these measured values. be able to.
〈実施例〉 本発明の−・実施例を図面に基づいて説明する。<Example> Embodiments of the present invention will be described based on the drawings.
第１図は、本発明の一実施例の全体構成を示すブロック
図である。FIG. 1 is a block diagram showing the overall configuration of an embodiment of the present invention.
第１図において、ｌは鋼帯であり、剪断機３によってシ
ート状に剪断された鋼板２は、ベルトコンベヤ４ａに載
ってゲート部５に運ばれる。ゲート部５では鋼板２は、
マグネットロール６に吸着されてベルトコンベヤ４ａか
らに１れ、続いて次のベルトコンベヤ４ｂへ向けて飛行
し、搬送中の鋼板２の先端部は、拘束された状態から開
放された状態へ移行する。この際、鋼板２の先端は、鋼
板２の長手方向の反りと鋼板２の通過速度に従って異な
った高さを通過する。In FIG. 1, l is a steel strip, and the steel plate 2 which has been sheared into a sheet shape by the shearing machine 3 is conveyed to the gate section 5 on a belt conveyor 4a. In the gate part 5, the steel plate 2 is
It is attracted by the magnetic roll 6 and falls off the belt conveyor 4a, and then flies toward the next belt conveyor 4b, and the tip of the steel plate 2 being conveyed changes from a restrained state to a released state. . At this time, the tip of the steel plate 2 passes through different heights depending on the warpage in the longitudinal direction of the steel plate 2 and the passing speed of the steel plate 2.
７は、この鋼板２の先端が一定位置を通過する高さ１１
をＪｌ： １９ ｆｉ＆に測定するためのＣＣＤ （Ｃ
ｈａｒｇｅ−Ｃｏｕｐｌｅｄ Ｄｅｖｉｅｏ ）型カメ
ラである。7 is the height 11 at which the tip of this steel plate 2 passes a certain position
CCD (C
This is a harge-coupled device (Devieo) type camera.
８は、ＣＣＤ型カメラ７からの信号により鋼板２の先端
高さｈを演算するｇｉ＋板先端高さ演算装置であり、演
算、した＃Ｉ２の先端高さ信号９は反り値演算装ｒｆ１
１０へ人力される。そしてまた、ｗ４仮２の通過速度と
同じベルトコンベヤ４ａの速度信号１３もコンベヤ速度
検出器１２より検出され反り値演算装置１０へ入力され
る。8 is a gi+plate tip height calculation device that calculates the tip height h of the steel plate 2 based on the signal from the CCD camera 7, and the calculated tip height signal 9 of #I2 is sent to the warp value calculation device rf1.
Manually powered to 10. Furthermore, a speed signal 13 of the belt conveyor 4a, which is the same as the passing speed of W4 provisional 2, is also detected by the conveyor speed detector 12 and inputted to the warp value calculation device 10.
鋼板２の先端が通過する高さｈは、鋼板２の長手方向の
反りだけではなく、鋼板２の板ｊ７、板幅、硬度等のｔ
！４Ｆｉ条件の影響を受けるため、反り値演算装置１０
には、予め、設定手段１１により鋼板条件が入力されて
いる。The height h at which the tip of the steel plate 2 passes depends not only on the warpage in the longitudinal direction of the steel plate 2, but also on the plate j7, plate width, hardness, etc. of the steel plate 2.
! Since it is affected by the 4Fi conditions, the warpage value calculation device 10
The steel plate conditions are input in advance by the setting means 11.
しかして、反り（Ｉ？！演算装置ＩＯにおいて、鋼板先
端筒さ演算装置８で演算したｍ仮２の先端高さ＋１とコ
ンベヤの速度信号１３に応じて、鋼板２の長手方向の反
り値Ｃが演算される。Therefore, the warp (I?!) calculation device IO calculates the warp value C in the longitudinal direction of the steel plate 2 according to the tip height + 1 of m provisional 2 calculated by the steel plate tip cylindrical length calculation device 8 and the conveyor speed signal 13. is calculated.
演算した反り値信号１４は、剪断機３の上流に配置した
綱帯レベラ１５の矯正量を制御する鋼帯レベラ制御ｎ装
置１６に出力され、鋼板２の反り値に基づいて鋼帯ｌの
形状が矯正される１図中、１７はレベラ制御ｎ信号、１
Ｂはレベラ条件信号である。The calculated warpage value signal 14 is output to a steel strip leveler control device 16 that controls the amount of straightening of a rope leveler 15 disposed upstream of the shearing machine 3, and the shape of the steel strip l is determined based on the warpage value of the steel plate 2. In the figure, 17 is the leveler control n signal, 1
B is a leveler condition signal.
また、設定手段１１により長手方向の反り（ａＣの規ｔ
１ζ値を反り値演算装置１０に入力しておき、演〕γし
た反り埴Ｃがこの規ｔｅｌ 値から外れた鋼板２に対し
、リジェクト信号１９を出力して、下流のゲート部で鋼
板２の搬送ラインから除去する。これにより、製品中に
不良品が混入するのを防止することができる。Further, the setting means 11 determines the warpage in the longitudinal direction (the standard of aC).
1ζ value is input to the warp value calculating device 10, and a reject signal 19 is output to the steel plate 2 whose calculated warp value C deviates from this standard value, and the reject signal 19 is output to the steel plate 2 at the downstream gate section. Remove from conveyor line. This can prevent defective products from being mixed into the product.
なお、ｗ４仮２の先端高さ）１及び反り（ＩＣをそれぞ
れ表示器２０ ａ 、２０ ｂに表示することができる
。Note that the tip height of w4 temporary 2) 1 and warpage (IC) can be displayed on the display devices 20 a and 20 b, respectively.
また、ベルトコンベヤ４ａの速度及び反り値Ｃをレフ′
−ダ２１に記録させることもできる。Also, the speed of the belt conveyor 4a and the warp value C are
- It is also possible to record on the card 21.
次に、本発明の具体的な実施例について説明する。Next, specific examples of the present invention will be described.
第２図（１１は、第１図の装置においてＦｉ、厚０．２
２ｍ、板幅８３２園、長さ９５０ａｍの＃２５ぶりき仮
を処理した際のぶりき坂の先端高さｈと反り値Ｃの関係
を測定した結果を示したグラフである。なお、ベルトコ
ンベヤ４ａの速度は２８０ｓｐｍである１図中、４Ｆ反
りは」二方に反る場合であり、これを（ト）で表示し、
下反りは下方に反る場合であり、これを（−）で表示し
た。Figure 2 (11 is Fi, thickness 0.2 in the apparatus of Figure 1)
It is a graph showing the results of measuring the relationship between the tip height h of the tin plate slope and the warp value C when processing #25 tin temporary with a board width of 832 mm and a length of 950 am. In addition, the speed of the belt conveyor 4a is 280 spm. In Figure 1, 4F warpage is a case where the belt is warped in two directions, and this is indicated by (G).
Downward warping is a case where the film curves downward, and this is indicated by (-).
第２図（２）は１、同じぶりき板をベルトコンベヤ４ａ
の速度２２０ｍｐ＋ｍで剪断し７た場合のぶりき扱の先
端高さ１１と反り値Ｃの関係を測定した結果を示したグ
ラフである。Figure 2 (2) shows 1, the same tin plate is transferred to belt conveyor 4a.
7 is a graph showing the results of measuring the relationship between the tip height 11 of a tin plate and the warpage value C when shearing at a speed of 220 mp+m.
ｍ ２ ［ａ（１）、（２）のグラフから、鋼板の長手
方向の反り値Ｃをゲート部を通過する鋼板の先端高さｈ
とコンベヤ４ａの速度により求めることができることは
明らかである。m 2 [a From the graphs of (1) and (2), the warp value C in the longitudinal direction of the steel plate is determined by the height h of the tip of the steel plate passing through the gate part.
It is clear that this can be determined from the speed of the conveyor 4a.
第３図は、第２図の関係に基づき第１図の装置を使用し
て、板＊Ｏ，Ｏａ〜１．０Ｍ、板１ｉＪ ６００〜１２
０〇−の薄鋼板を処理した際の一級品中の反り値Ｃの分
布と、従来からの抜き取り方法で検査しながら剪断した
一級品中の反り値Ｃの分布とを比較して示したグラフで
ある。一級品の反り値Ｃの現車は＋５≧Ｃ〉−５である
。FIG. 3 shows the results obtained by using the apparatus shown in FIG. 1 based on the relationship shown in FIG.
A graph showing a comparison of the distribution of warpage value C in a first grade product when processing a 0〇- thin steel plate and the distribution of warp value C in a first grade product sheared while inspecting using the conventional sampling method. It is. The current car with a warp value C of a first-class product is +5≧C>-5.
本発明によって、従来は取り除くことができなかった不
連続で混入する規格外の鋼板を減少できるようになった
。The present invention has made it possible to reduce the number of discontinuous and non-standard steel plates that have been mixed in, which could not be removed in the past.
〈発明の効果〉
以上説明したように、本発明により、搬送中の１ｗ４仮
、特にベルトコンベヤや搬送ローラ上で重力や磁力によ
って形状が平坦になってしまう薄鋼板の長手方向の反り
値を連続的に測定することができ、作業能率を大幅に向
上することが可能となる。<Effects of the Invention> As explained above, the present invention continuously reduces the warpage value in the longitudinal direction of a thin steel sheet whose shape becomes flat due to gravity or magnetic force during 1w4 transport, especially on a belt conveyor or transport roller. It is possible to significantly improve work efficiency.
また、反り値が規準値から外れた鋼板を鋼板の搬送中に
除去して、製品中に規格外の鋼板が混入するのを防止で
き、かつ製品中の反り値の変動を少なくすることができ
る。In addition, by removing steel plates whose warpage value deviates from the standard value during conveyance of the steel plate, it is possible to prevent non-standard steel plates from being mixed into the product, and to reduce fluctuations in the warp value in the product. .
更に、鋼板の反り値をフィードバックして鋼帯レベラに
よる反り矯正量を調整することにより、鋼板の反り値を
減少させることができる。Further, by feeding back the warpage value of the steel plate and adjusting the amount of warpage correction by the steel strip leveler, the warpage value of the steel plate can be reduced.
第１図は本発明の一実施例の全体構成を示すブロック図
、第２図（１）、（２）は鋼板の先端高さと鋼板の長手
方向の反り値の関係を示すグラフ、第３図は本発明の走
間形状検出方法を実施した場合と、従来の抜き取り検査
で鋼板を剪断した場合の製品中の反り値の分布を比較し
て示したグラフ、第４図は従来の反り測定方法の説明図
である。
３・・・剪断機、
４ａ、４ｂ・・・ベルトコンベヤ、
５・・・ゲート部、 ６・・・マグネットロー
ル、７・・・ＣＣＤ型カメラ、 ８・・・鋼板高さ演算
装置、９・・・鋼板の先端高さ信号、
ｌＯ・・・反り値演算装置、 ！ｌ・・・設定手段、１
２・・・コンベヤ速度検出器、
１３・・・コンベヤの速度信号、
！４・・・反り値信号、 １５・・・綱帯レベラ、
１６・・・鋼帯レベラ制御装置、
１７・・・レベラ制御信号、 １８・・・レベラ条件信
号、１９・・・リジェクト信号、 ２０ａ、２０ｂ・・
・表示器、２１・・・レコーダ。Fig. 1 is a block diagram showing the overall configuration of an embodiment of the present invention, Figs. 2 (1) and (2) are graphs showing the relationship between the height of the tip of the steel plate and the warp value in the longitudinal direction of the steel plate, and Fig. 3 Figure 4 is a graph comparing the distribution of warp values in a product when the running shape detection method of the present invention is implemented and when a steel plate is sheared using a conventional sampling inspection. FIG. 3... Shearing machine, 4a, 4b... Belt conveyor, 5... Gate section, 6... Magnet roll, 7... CCD type camera, 8... Steel plate height calculation device, 9... ...Steel plate tip height signal, lO...warp value calculation device, ! l...setting means, 1
2... Conveyor speed detector, 13... Conveyor speed signal, ! 4... Warp value signal, 15... Rope leveler,
16... Steel strip leveler control device, 17... Leveler control signal, 18... Leveler condition signal, 19... Reject signal, 20a, 20b...
-Display device, 21...Recorder.
Claims (3)
された状態へ移行する際に、非接触に鋼板の先端高さを
測定すると共に鋼板の通過速度を測定し、これら測定し
た鋼板の先端高さと鋼板の通過速度から、鋼板の長手方
向の反りを検出することを特徴とする鋼板の走間形状検
出方法。(1) When the tip of the steel plate being transported changes from a restrained state to a released state, the height of the tip of the steel plate is measured in a non-contact manner, and the passing speed of the steel plate is measured, and the steel plate measured A method for detecting the running shape of a steel plate, characterized by detecting warpage in the longitudinal direction of the steel plate from the tip height of the steel plate and the passing speed of the steel plate.
された状態へ移行する際に、非接触に鋼板の先端高さを
測定すると共に鋼板の通過速度を測定し、これら測定し
た鋼板の先端高さと鋼板の通過速度から、鋼板の長手方
向の反りを検出し、検出した反り値が規準値から外れた
鋼板を鋼板の搬送ラインから除去することを特徴とする
鋼板の選別方法。(2) When the tip of the steel plate being transported moves from a restrained state to a released state, the height of the tip of the steel plate is measured in a non-contact manner, and the passing speed of the steel plate is measured, and the steel plate measured A method for sorting steel plates, comprising: detecting warpage in the longitudinal direction of the steel plate from the height of the tip of the steel plate and the passing speed of the steel plate, and removing steel plates whose detected warpage value deviates from a standard value from a steel plate conveyance line.
おいて、搬送中の鋼板の先端部が拘束された状態から開
放された状態へ移行する際に、非接触に鋼板の先端高さ
を測定すると共に鋼板の通過速度を測定し、これら測定
した鋼板の先端高さと鋼板の通過速度から、鋼板の長手
方向の反りを検出し、検出した反り値を前記鋼帯レベラ
の制御装置にフィードバックし、前記鋼帯レベラによる
反り矯正量を調整することを特徴とする鋼板の形状矯正
方法。(3) In a steel strip shearing line with a steel strip leveler placed upstream, the height of the tip of the steel plate is adjusted in a non-contact manner when the tip of the steel plate being conveyed transitions from a restrained state to a released state. At the same time, the passing speed of the steel plate is measured, and from the measured tip height of the steel plate and the passing speed of the steel plate, warpage in the longitudinal direction of the steel plate is detected, and the detected warpage value is fed back to the control device of the steel strip leveler. , A method for straightening the shape of a steel plate, comprising adjusting the amount of warpage straightening by the steel strip leveler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18361889A JPH0348710A (en) | 1989-07-18 | 1989-07-18 | Inter-travel shape detecting method, inter-travel selecting method, and shape correcting method for steel plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18361889A JPH0348710A (en) | 1989-07-18 | 1989-07-18 | Inter-travel shape detecting method, inter-travel selecting method, and shape correcting method for steel plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0348710A true JPH0348710A (en) | 1991-03-01 |
Family
ID=16138931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18361889A Pending JPH0348710A (en) | 1989-07-18 | 1989-07-18 | Inter-travel shape detecting method, inter-travel selecting method, and shape correcting method for steel plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0348710A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011082006A (en) * | 2009-10-07 | 2011-04-21 | Nippon Steel Corp | Heating control method for steel plate |
| JP2016083688A (en) * | 2014-10-28 | 2016-05-19 | Ｊｆｅスチール株式会社 | Tip shape correction device and tip shape correction method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62214807A (en) * | 1986-03-17 | 1987-09-21 | Sumitomo Metal Ind Ltd | Hot rolling method for leveling nose rising |
| JPS63174723A (en) * | 1987-01-14 | 1988-07-19 | Mitsubishi Heavy Ind Ltd | Deflection control method for strip |
-
1989
- 1989-07-18 JP JP18361889A patent/JPH0348710A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62214807A (en) * | 1986-03-17 | 1987-09-21 | Sumitomo Metal Ind Ltd | Hot rolling method for leveling nose rising |
| JPS63174723A (en) * | 1987-01-14 | 1988-07-19 | Mitsubishi Heavy Ind Ltd | Deflection control method for strip |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011082006A (en) * | 2009-10-07 | 2011-04-21 | Nippon Steel Corp | Heating control method for steel plate |
| JP2016083688A (en) * | 2014-10-28 | 2016-05-19 | Ｊｆｅスチール株式会社 | Tip shape correction device and tip shape correction method |
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