JP2012125825A - Apparatus for detecting double steel plate - Google Patents

Apparatus for detecting double steel plate Download PDF

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JP2012125825A
JP2012125825A JP2010281530A JP2010281530A JP2012125825A JP 2012125825 A JP2012125825 A JP 2012125825A JP 2010281530 A JP2010281530 A JP 2010281530A JP 2010281530 A JP2010281530 A JP 2010281530A JP 2012125825 A JP2012125825 A JP 2012125825A
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steel plate
profile image
roller table
displacement meter
double
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JP5796291B2 (en
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Hiroshi Fukuyama
弘 福山
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JFE Steel Corp
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JFE Steel Corp
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Abstract

PROBLEM TO BE SOLVED: To provide an apparatus for detecting double steel plate, which can accurately detect double steel plate that is hung on a conveyor roller table while two steel plates are overlapped on each other.SOLUTION: The apparatus for detecting double steel plate includes: upper displacement gauges 4a-4g arranged above the conveyor roller table 2 along a width direction of a steel plate 1; lower displacement gauges 5a-5g arranged under the conveyor roller table 2 while facing the upper displacement gauges; a determining device 6 for determining whether steel plates are doubly overlapped on each other from a surface displacement of the steel plate measured by the upper displacement gauges 4a-4g and the lower displacement gauges 5a-5g; a profile image forming device 7 for forming a profile image of the steel plate from each measurement value measured by the upper displacement gauges 4a-4g and the lower displacement gauges 5a-5g; and a display device 8 for displaying a determination result of the determining device 6 and also displaying a profile image formed by the profile image forming device 7.

Description

本発明は、厚鋼板などの鋼板を搬送する搬送ローラテーブルの上に二枚重ねの状態で吊り下ろされた二枚重ね鋼板を検出する二枚重ね鋼板検出装置に関するものである。   The present invention relates to a double-ply steel plate detection device that detects a double-ply steel plate that is suspended in a double-ply state on a transport roller table that transports a steel plate such as a thick steel plate.

一般に、厚鋼板などの鋼板は加熱炉で加熱されたスラブを所望の厚さになるまで熱間圧延した後、冷却床で冷却し、さらに剪断設備で所定の長さに剪断して製造される。このような工程を経て製造される鋼板に反りなどの形状不良が圧延時や冷却時に発生した場合には、形状不良が発生した鋼板を搬送ローラテーブルの上に吊り下ろし、形状不良を矯正する矯正設備に鋼板を搬送するようにしている。この場合、鋼板を搬送ローラテーブルの上に吊り下ろすクレーン装置としてリフティングマグネットを有するものを用いると、リフティングマグネットの磁力により鋼板が搬送ローラテーブルの上に二枚重ねの状態で吊り下ろされることがあり、このような状態で搬送ローラテーブルの上に吊り下ろされた鋼板が矯正設備にそのまま搬送されると矯正設備に破損などのダメージを与えてしまうおそれがある。   In general, a steel plate such as a thick steel plate is manufactured by hot-rolling a slab heated in a heating furnace to a desired thickness, cooling in a cooling bed, and further shearing to a predetermined length with a shearing facility. . When shape defects such as warpage occur in a steel sheet manufactured through such processes during rolling or cooling, the steel sheet in which the shape defect has occurred is suspended on the transport roller table to correct the shape defect. Steel plates are transported to the equipment. In this case, if a crane device having a lifting magnet is used as a crane device for hanging the steel plate on the conveying roller table, the steel plate may be suspended in a state of being overlapped on the conveying roller table by the magnetic force of the lifting magnet. If the steel sheet suspended on the transport roller table in such a state is transported as it is to the straightening equipment, the straightening equipment may be damaged.

そこで、例えば特許文献１には、搬送ローラテーブルの上に吊り下ろされた鋼板の表面変位を搬送ローラテーブルの上方に配置された上側変位計と該上側変位計に対向して搬送ローラテーブルの下方に配置された下側変位計とにより計測し、上側変位計と下側変位計の計測値から鋼板の二枚重ねを検出する技術が開示されている。   Therefore, for example, Patent Document 1 discloses that the surface displacement of the steel plate suspended on the transport roller table is an upper displacement meter disposed above the transport roller table and below the transport roller table facing the upper displacement meter. A technique for measuring two sheets of steel sheets from the measured values of the upper displacement meter and the lower displacement meter is disclosed.

特開平１０−２７７６４５号公報Japanese Patent Laid-Open No. 10-277645

特許文献１に開示された技術によると、搬送ローラテーブルの上に吊り下ろされた鋼板の二枚重ねを監視員の目視などに頼ることなく検出することが可能であるが、鋼板に大きな歪が生じている場合には、搬送ローラテーブルの上に吊り下ろされた鋼板が一枚であるにも拘わらず二枚重ねと誤検出してしまうおそれがあった。
本発明は上述した問題点に着目してなされたものであり、その目的は、搬送ローラテーブルの上に二枚重ねの状態で吊り下ろされた二枚重ね鋼板を正確に検出することのできる二枚重ね鋼板検出装置を提供しようとするものである。 According to the technique disclosed in Patent Document 1, it is possible to detect two sheets of steel sheets suspended on a transport roller table without depending on the visual observation of a monitoring person, but a large distortion occurs in the steel sheets. If there is a single steel plate suspended on the transport roller table, there is a risk of erroneous detection of two sheets being stacked.
The present invention has been made paying attention to the above-mentioned problems, and its purpose is to provide a double-ply steel plate detection device capable of accurately detecting a double-ply steel plate suspended in a double-ply state on a transport roller table. It is something to be offered.

上記課題を解決するために、本発明の請求項１に係る発明は、鋼板を搬送する搬送ローラテーブルの上に二枚重ねの状態で吊り下ろされた二枚重ね鋼板を検出する二枚重ね鋼板検出装置であって、前記鋼板の幅方向に沿って前記搬送ローラテーブルの上方に配置された複数個の上側変位計と、該上側変位計に対向して前記搬送ローラテーブルの下方に配置された複数個の下側変位計と、前記上側変位計及び前記下側変位計により計測された前記鋼板の表面変位から前記鋼板の二枚重ねを判定する判定装置と、前記上側変位計及び前記下側変位計の各計測値から前記鋼板のプロフィール画像を作成するプロフィール画像作成装置と、前記判定装置の判定結果を表示すると共に前記プロフィール画像作成装置により作成されたプロフィール画像を表示する表示装置とを備えたことを特徴とする。   In order to solve the above problems, the invention according to claim 1 of the present invention is a double-ply steel plate detection device that detects a double-ply steel plate suspended in a double-ply state on a transport roller table that transports the steel plate, A plurality of upper displacement meters disposed above the conveying roller table along the width direction of the steel plate, and a plurality of lower displacements disposed below the conveying roller table so as to face the upper displacement meter. A determination device for determining the overlap of the steel plates from the surface displacement of the steel plate measured by the upper displacement meter and the lower displacement meter, and from the measured values of the upper displacement meter and the lower displacement meter, A profile image creation device for creating a profile image of a steel sheet, and a profile image created by the profile image creation device while displaying a determination result of the determination device Characterized by comprising a Shimesuru display device.

本発明の請求項２に係る発明は、請求項１に記載の二枚重ね鋼板検出装置において、前記上側変位計と前記下側変位計との離間距離をＬ０、前記上側変位計の計測値をＬ１、前記下側変位計の計測値をＬ２としたとき、前記判定装置は、Ｌ０−（Ｌ１＋Ｌ２）を演算し、該演算値を前記鋼板の板厚と比較して前記鋼板の二枚重ねを判定することを特徴とする。   The invention according to claim 2 of the present invention is the double sheet steel plate detection device according to claim 1, wherein the separation distance between the upper displacement meter and the lower displacement meter is L0, the measured value of the upper displacement meter is L1, When the measured value of the lower displacement meter is L2, the determination device calculates L0− (L1 + L2), compares the calculated value with the plate thickness of the steel plate, and determines whether or not the two steel plates are overlapped. Features.

本発明によると、搬送ローラテーブルの上に吊り下ろされた鋼板が二枚重ね鋼板であるかどうかを判定装置の判定結果だけでなく、表示装置に表示された鋼板のプロフィール画像からも確認することができる。従って、搬送ローラテーブルの上に吊り下ろされた鋼板に大きな歪が生じていても二枚重ねと誤って認識してしまうことがなく、搬送ローラテーブルの上に二枚重ねの状態で吊り下ろされた二枚重ね鋼板を正確に検出することができる。   According to the present invention, whether or not the steel sheet suspended on the transport roller table is a double-layer steel sheet can be confirmed not only from the determination result of the determination apparatus but also from the profile image of the steel sheet displayed on the display device. . Therefore, even if there is a large distortion in the steel sheet suspended on the transport roller table, it will not be mistakenly recognized as a double sheet, and a double steel sheet suspended in a double stack state on the transport roller table It can be detected accurately.

鋼板を搬送する搬送ローラテーブルの一部を示す側面図である。It is a side view which shows a part of conveyance roller table which conveys a steel plate. 図１のＡ−Ａ断面を示す図である。It is a figure which shows the AA cross section of FIG. 本発明の一実施形態に係る二枚重ね鋼板検出装置の表示装置に表示されるプロフィール画像の一例を示す図である。It is a figure which shows an example of the profile image displayed on the display apparatus of the double pile steel plate detection apparatus which concerns on one Embodiment of this invention.

以下、図面を参照して本発明の一実施形態について説明する。
図1は鋼板を搬送する搬送ローラテーブルの一部を示す側面図、図２は図１のＡ−Ａ断面を示す図であって、鋼板１を搬送する搬送ローラテーブル２は多数の搬送ローラ３から構成されている。この搬送ローラテーブル２の上に二枚重ねの状態で吊り下ろされた二枚重ね鋼板を検出する本発明の一実施形態に係る二枚重ね鋼板検出装置は、図２に示すように、上側変位計４ａ〜４ｇ、下側変位計５ａ〜５ｇ、判定装置６、プロフィール画像作成装置７および表示装置８を備えて構成されている。 Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a side view showing a part of a conveying roller table for conveying a steel plate, and FIG. 2 is a diagram showing a cross section taken along the line AA of FIG. It is composed of As shown in FIG. 2, the two-ply steel plate detection device according to one embodiment of the present invention for detecting a double-ply steel plate suspended in a two-ply state on the transport roller table 2 has upper displacement gauges 4a-4g, Side displacement meters 5a to 5g, a determination device 6, a profile image creation device 7 and a display device 8 are provided.

上側変位計４ａ〜４ｇは搬送ローラテーブル２の上に吊り下ろされた鋼板１の表面変位を計測するものであって、これらの上側変位計４ａ〜４ｇは鋼板１の幅方向に沿って搬送ローラテーブル２の上方に一定間隔で配置されている。また、上側変位計４ａ〜４ｇは例えば鋼板１の上面にレーザ光を照射して鋼板１の上側表面変位を非接触で計測するように構成されている。   The upper displacement meters 4a to 4g measure the surface displacement of the steel plate 1 suspended on the conveying roller table 2, and these upper displacement meters 4a to 4g are conveying rollers along the width direction of the steel plate 1. Above the table 2 are arranged at regular intervals. The upper displacement meters 4a to 4g are configured to measure the upper surface displacement of the steel plate 1 in a non-contact manner by irradiating the upper surface of the steel plate 1 with laser light, for example.

下側変位計５ａ〜５ｇは上側変位計４ａ〜４ｇと同様に搬送ローラテーブル２の上に吊り下ろされた鋼板１の表面変位を計測するものであって、これらの下側変位計５ａ〜５ｇは上側変位計４ａ〜４ｇに対向して搬送ローラテーブル２の下方に配置されている。また、下側変位計５ａ〜５ｇは例えば鋼板１の下面にレーザ光を照射して鋼板１の下側表面変位を非接触で計測するように構成されている。   The lower displacement meters 5a to 5g measure the surface displacement of the steel plate 1 suspended on the transport roller table 2 in the same manner as the upper displacement meters 4a to 4g. The lower displacement meters 5a to 5g Is arranged below the conveying roller table 2 so as to face the upper displacement gauges 4a to 4g. The lower displacement meters 5a to 5g are configured to measure the lower surface displacement of the steel plate 1 in a non-contact manner by irradiating the lower surface of the steel plate 1 with a laser beam, for example.

判定装置６は上側変位計４ａ〜４ｇ及び下側変位計５ａ〜５ｇにより計測された鋼板１の表面変位から鋼板の二枚重ねを判定するものであって、この判定装置６は例えば上側変位計４ａ〜４ｇと下側変位計５ａ〜５ｇとの離間距離をＬ０、上側変位計４ａ〜４ｇにより計測された鋼板１の上側表面変位をＬ１、下側変位計５ａ〜５ｇにより計測された鋼板１の下側表面変位をＬ２とすると、Ｌ０−（Ｌ１＋Ｌ２）を演算し、その演算値を鋼板１の板厚Ｔ１と比較するように構成されている。そして、判定装置６はＬ０−（Ｌ１＋Ｌ２）＞Ｔ１のときに二枚重ねと判定し、その判定結果を表示装置８に出力するように構成されている。   The determination device 6 determines the overlap of the steel plates from the surface displacement of the steel plate 1 measured by the upper displacement meters 4a to 4g and the lower displacement meters 5a to 5g. The determination device 6 is, for example, the upper displacement meters 4a to 4g. The distance between 4g and the lower displacement meters 5a to 5g is L0, the upper surface displacement of the steel plate 1 measured by the upper displacement meters 4a to 4g is L1, and the lower surface of the steel plate 1 measured by the lower displacement meters 5a to 5g. When the side surface displacement is L2, L0− (L1 + L2) is calculated, and the calculated value is compared with the plate thickness T1 of the steel plate 1. The determination device 6 is configured to determine that two sheets are overlapped when L0− (L1 + L2)> T1, and to output the determination result to the display device 8.

プロフィール画像作成装置７は搬送ローラテーブル２の上に吊り下ろされた鋼板１のプロフィール画像を作成するものであって、このプロフィール画像作成装置７は上側変位計４ａ〜４ｇ及び下側変位計５ａ〜５ｇの各計測値から鋼板１のプロフィール画像を作成し、作成したプロフィール画像を表示装置８に出力するように構成するように構成されている。従って、表示装置８には、判定装置６の判定結果が表示されると共に、プロフィール画像作成装置７により作成された鋼板の幅方向に沿うプロフィール画像も表示されるようになっている。   The profile image creation device 7 creates a profile image of the steel plate 1 suspended on the conveying roller table 2, and the profile image creation device 7 includes upper displacement meters 4a to 4g and lower displacement meters 5a to 5a. A profile image of the steel plate 1 is created from each measurement value of 5 g, and the created profile image is configured to be output to the display device 8. Accordingly, the display device 8 displays the determination result of the determination device 6 and also displays a profile image along the width direction of the steel plate created by the profile image creation device 7.

図３は本発明の一実施形態に係る二枚重ね鋼板検出装置の表示装置に表示されるプロフィール画像の一例を示す図であって、（ａ）は搬送ローラテーブルの上に吊り下ろされた鋼板が二枚重ね鋼板でないときのプロフィール画像を示す図で、（ｂ）は搬送ローラテーブルの上に吊り下ろされた鋼板が二枚重ね鋼板であるときのプロフィール画像を示す図である。   FIG. 3 is a diagram showing an example of a profile image displayed on the display device of the double-ply steel plate detection device according to one embodiment of the present invention, wherein (a) shows a double plate of steel plates suspended on the transport roller table. It is a figure which shows the profile image when it is not a steel plate, (b) is a figure which shows a profile image when the steel plate suspended on the conveyance roller table is a two-ply steel plate.

本発明の一実施形態に係る二枚重ね鋼板検出装置では、搬送ローラテーブル２の上に吊り下ろされた鋼板が二枚重ね鋼板でない場合には、図３（ａ）に示すようなプロフィール画像が判定装置６の判定結果と共に表示装置８の表示画面８１に表示される。
一方、搬送ローラテーブル２の上に吊り下ろされた鋼板が二枚重ね鋼板である場合には、図３（ｂ）に示すようなプロフィール画像が判定装置６の判定結果と共に表示装置８の表示画面８１に表示される。 In the two-ply steel plate detection device according to one embodiment of the present invention, when the steel plate suspended on the transport roller table 2 is not a double-ply steel plate, a profile image as shown in FIG. It is displayed on the display screen 81 of the display device 8 together with the determination result.
On the other hand, when the steel plate suspended on the transport roller table 2 is a double-layer steel plate, a profile image as shown in FIG. 3B is displayed on the display screen 81 of the display device 8 together with the determination result of the determination device 6. Is displayed.

上述した本発明の一実施形態のように、上側変位計４ａ〜４ｇ及び下側変位計５ａ〜５ｇの各計測値から鋼板１のプロフィール画像を作成するプロフィール画像作成装置７と、判定装置６の判定結果を表示すると共にプロフィール画像作成装置７により作成されたプロフィール画像を表示する表示装置８とを備えたことで、搬送ローラテーブル２の上に吊り下ろされた鋼板が二枚重ね鋼板であるかどうかを判定装置６の判定結果だけでなく、表示装置８に表示された鋼板のプロフィール画像からも確認することができる。従って、搬送ローラテーブル２の上に吊り下ろされた鋼板１に大きな歪が生じていても二枚重ねと誤って認識してしまうことがなく、搬送ローラテーブル２の上に二枚重ねの状態で吊り下ろされた二枚重ね鋼板を正確に検出することができる。   As in the embodiment of the present invention described above, the profile image creation device 7 that creates the profile image of the steel plate 1 from the measured values of the upper displacement meters 4a to 4g and the lower displacement meters 5a to 5g, and the determination device 6 Whether or not the steel sheet suspended on the transport roller table 2 is a double steel sheet is provided with the display device 8 for displaying the determination result and displaying the profile image created by the profile image creation device 7. Not only the determination result of the determination device 6 but also the profile image of the steel plate displayed on the display device 8 can be confirmed. Therefore, even if a large distortion occurs in the steel plate 1 suspended on the conveying roller table 2, it is not mistakenly recognized as two-layered, and is suspended on the conveying roller table 2 in a two-layered state. A double-ply steel plate can be accurately detected.

なお、上述した本発明の一実施形態では、搬送ローラテーブルの上に吊り下ろされた鋼板の上側表面変位を計測する上側変位計として７個の上側変位計を例示すると共に鋼板の下側表面変位を計測する下側変位計として７個の下側変位計を例示したが、これに限られるものではなく、上側変位計と下側変位計の個数は２個以上７個以下であってもよいし、８個以上であってもよい。   In the embodiment of the present invention described above, seven upper displacement meters are exemplified as upper displacement meters for measuring the upper surface displacement of the steel plate suspended on the transport roller table, and the lower surface displacement of the steel plate. Although the seven lower displacement meters are illustrated as the lower displacement meters for measuring the pressure, the present invention is not limited to this, and the number of the upper displacement meters and the lower displacement meters may be two or more and seven or less. However, it may be eight or more.

また、上述した本発明の一実施形態では、表示装置に表示される鋼板のプロフィール画像として鋼板の幅方向に沿うプロフィール画像を例示したが、これに限られるものではなく、例えば鋼板の長さ方向に沿うプロフィール画像を表示装置に表示してもよいし、鋼板の幅方向に沿うプロフィール画像と鋼板の長さ方向に沿うプロフィール画像の両方を表示装置に表示してもよい。   Moreover, in one Embodiment of this invention mentioned above, although the profile image in alignment with the width direction of a steel plate was illustrated as a profile image of the steel plate displayed on a display apparatus, it is not restricted to this, For example, the length direction of a steel plate May be displayed on the display device, or both a profile image along the width direction of the steel plate and a profile image along the length direction of the steel plate may be displayed on the display device.

１…鋼板
２…搬送ローラテーブル
４ａ〜４ｇ…上側変位計
５ａ〜５ｇ…下側変位計
６…判定装置
７…プロフィール画像作成装置
８…表示装置 DESCRIPTION OF SYMBOLS 1 ... Steel plate 2 ... Conveyance roller table 4a-4g ... Upper displacement meter 5a-5g ... Lower displacement meter 6 ... Determination apparatus 7 ... Profile image creation apparatus 8 ... Display apparatus

Claims (2)

鋼板を搬送する搬送ローラテーブルの上に二枚重ねの状態で吊り下ろされた二枚重ね鋼板を検出する二枚重ね鋼板検出装置であって、
前記鋼板の幅方向に沿って前記搬送ローラテーブルの上方に配置された複数個の上側変位計と、該上側変位計に対向して前記搬送ローラテーブルの下方に配置された複数個の下側変位計と、前記上側変位計及び前記下側変位計により計測された前記鋼板の表面変位から前記鋼板の二枚重ねを判定する判定装置と、前記上側変位計及び前記下側変位計の各計測値から前記鋼板のプロフィール画像を作成するプロフィール画像作成装置と、前記判定装置の判定結果を表示すると共に前記プロフィール画像作成装置により作成されたプロフィール画像を表示する表示装置とを備えたことを特徴とする二枚重ね鋼板検出装置。 A double-ply steel plate detection device for detecting a double-ply steel plate suspended in a double-ply state on a carrying roller table carrying a steel plate,
A plurality of upper displacement meters disposed above the conveying roller table along the width direction of the steel plate, and a plurality of lower displacements disposed below the conveying roller table so as to face the upper displacement meter. A determination device for determining the overlap of the steel plates from the surface displacement of the steel plate measured by the upper displacement meter and the lower displacement meter, and from the measured values of the upper displacement meter and the lower displacement meter, A double-ply steel plate comprising: a profile image creation device for creating a profile image of a steel plate; and a display device for displaying a determination result of the determination device and displaying a profile image created by the profile image creation device Detection device. 前記上側変位計と前記下側変位計との離間距離をＬ０、前記上側変位計の計測値をＬ１、前記下側変位計の計測値をＬ２としたとき、前記判定装置は、Ｌ０−（Ｌ１＋Ｌ２）を演算し、該演算値を前記鋼板の板厚と比較して前記鋼板の二枚重ねを判定することを特徴とする請求項１に記載の二枚重ね鋼板検出装置。   When the separation distance between the upper displacement meter and the lower displacement meter is L0, the measurement value of the upper displacement meter is L1, and the measurement value of the lower displacement meter is L2, the determination device is L0− (L1 + L2). 2), and the calculated value is compared with the plate thickness of the steel sheet to determine whether or not the two steel sheets are stacked.
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104772377A (en) * 2014-01-13 2015-07-15 中南大学 Complex profile induction stretch bending device with displacement probes
CN113492163A (en) * 2021-07-16 2021-10-12 广东韶钢松山股份有限公司 Steel plate straightening system and method for preventing overlapped steel plates from being straightened
CN114433658A (en) * 2022-02-15 2022-05-06 苏州三姆森光电科技有限公司 Flatness shaping machine tool and shaping method

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JPH10277645A (en) * 1997-04-08 1998-10-20 Nkk Corp Device for detecting abnormal member carried on steel plate carrying line
JPH11118456A (en) * 1997-10-13 1999-04-30 Nippon Steel Corp Overlapping plate detecting device
JP2007313529A (en) * 2006-05-24 2007-12-06 Nippon Steel Corp Equipment for manufacturing thick steel plate

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JPH10277645A (en) * 1997-04-08 1998-10-20 Nkk Corp Device for detecting abnormal member carried on steel plate carrying line
JPH11118456A (en) * 1997-10-13 1999-04-30 Nippon Steel Corp Overlapping plate detecting device
JP2007313529A (en) * 2006-05-24 2007-12-06 Nippon Steel Corp Equipment for manufacturing thick steel plate

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104772377A (en) * 2014-01-13 2015-07-15 中南大学 Complex profile induction stretch bending device with displacement probes
CN113492163A (en) * 2021-07-16 2021-10-12 广东韶钢松山股份有限公司 Steel plate straightening system and method for preventing overlapped steel plates from being straightened
CN114433658A (en) * 2022-02-15 2022-05-06 苏州三姆森光电科技有限公司 Flatness shaping machine tool and shaping method

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