JP2015155107A - Coil winding shape adaptability determination method and device - Google Patents
Coil winding shape adaptability determination method and device Download PDFInfo
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Abstract
Description
本発明は、熱間圧延ラインの圧延機の上流に設置された形状計を利用したコイル巻き形状合否判定方法および装置に関するものである。 The present invention relates to a coil winding shape pass / fail judgment method and apparatus using a shape meter installed upstream of a rolling mill in a hot rolling line.
熱間圧延ラインで製造されるストリップは、搬送の利便性から最終工程（コイラ設備）でコイル状にされる。そして、搬送先の客先や次工程で巻きほぐされるが、その際コイル巻き形状が悪い（コイル端面が凸となる）場合には、巻きほぐすための設備にコイルを装着できない問題が発生する。
このような問題が生じないようにするため、例えば、特許文献１および２には、コイラ設備で巻き取ったコイル側面の巻き形状を測定する技術が開示されている。この技術を用いて、巻き形状が悪いと判定した場合には、コイルの巻き直しを実施している。
また、特許文献３には、巻取装置の一対のピンチロールにガイドロールを付設し、巻ズレを防止する技術が開示されている。さらに、特許文献４には、鋼板が巻取装置に巻き付く時点を検知し、巻取装置の巻取り速度を制御して巻ズレを防止するような巻取制御方法が開示されている。
The strip manufactured in the hot rolling line is coiled in the final process (coiler facility) for convenience of conveyance. Then, it is unwound at the customer or the next process of the transport destination, but when the coil winding shape is bad (coil end surface is convex), there arises a problem that the coil cannot be mounted on the equipment for unwinding.
In order to prevent such a problem from occurring, for example, Patent Documents 1 and 2 disclose a technique for measuring a winding shape of a coil side surface wound by a coiler facility. Using this technique, when it is determined that the winding shape is bad, the coil is rewound.
Patent Document 3 discloses a technique for preventing a winding shift by attaching a guide roll to a pair of pinch rolls of a winding device. Furthermore, Patent Document 4 discloses a winding control method that detects the time when a steel sheet is wound around a winding device and controls the winding speed of the winding device to prevent winding deviation.
さらに、特許文献５には、コイル内外径部位のそれぞれ予め設定した一定距離における形状計測データを除外するマスキング処理を施し、マスキング処理された以外の形状計測データを用いて形状合否判定を行う技術が開示されている。 Furthermore, Patent Document 5 discloses a technique for performing a masking process for excluding shape measurement data at a predetermined distance for each of the inner and outer diameter portions of the coil, and performing shape acceptance using shape measurement data other than the masked process. It is disclosed.
特許文献１〜４に開示された技術により、コイル巻き形状の改善が実施されてきたものの、コイル内外径部位の形状は圧延の特性により目標とされている幅より狭くなる特徴があるため、コイル巻き形状の合否判定処理で不良の誤判定が発生する問題がある。 Although the coil winding shape has been improved by the techniques disclosed in Patent Documents 1 to 4, the shape of the inner and outer diameter of the coil is characterized by being narrower than the targeted width due to the rolling characteristics. There is a problem that an erroneous determination of failure occurs in the winding shape pass / fail determination processing.
また、特許文献５の形状合否判定を行う技術では、コイル内外径部位の予め設定された一定距離における形状計測データを除外するマスキング処理を施しているため、マスキングした箇所に本来合否判定すべき巻き形状が悪い部位が入ってしまう場合には、形状不良コイルを流出させてしまう問題がある。 Further, in the technology for determining whether or not the shape is acceptable in Patent Document 5, since the masking process is performed to exclude the shape measurement data at a predetermined constant distance of the inner and outer diameter portions of the coil, the winding that should originally be determined to pass or fail is applied to the masked portion. When a part with a bad shape enters, there is a problem that a poorly shaped coil flows out.
本発明は、上記のような事情に鑑みてなされたものであり、コイル形状合否判定での誤判定をなくすることができる、コイル巻き形状合否判定方法および装置を提供することを課題とする。 This invention is made | formed in view of the above situations, and makes it a subject to provide the coil winding shape acceptance determination method and apparatus which can eliminate the misjudgment in coil shape acceptance determination.
上記課題は、以下の発明によって解決できる。 The above problems can be solved by the following invention.
［１］ 熱間圧延ラインの圧延機の上流に設置された形状計直下の鋼板の形状測定結果およびコイラ設備で巻き取られたコイルの側面の巻き形状測定結果に基づいてコイル巻き形状の合否を判定するコイル巻き形状合否判定方法であって、
前記鋼板の形状測定結果から目標幅以下の先端・尾端長さを演算する目標幅以下の先端・尾端長さ演算ステップと、
演算した先端・尾端長さからマスフロー計算により圧延後の先端・尾端長さを演算する圧延後の先端・尾端長さ演算ステップと、
演算した圧延後の先端・尾端長さからコイル径演算により、コイル内径・外径マスキング距離を演算するコイル内径・外径マスキング距離演算ステップと、
前記巻き取られたコイルの形状測定結果の内、前記コイル内径・外径マスキング距離にあたる形状測定結果を合否判定に用いないようにマスキングするマスキング処理ステップと、
マスキングされた形状測定結果に基づいてコイル巻き形状の合否を判定する合否判定ステップと、
を有することを特徴とするコイル巻き形状合否判定方法。
[1] Pass / fail of the coil winding shape based on the shape measurement result of the steel sheet directly below the shape meter installed upstream of the rolling mill of the hot rolling line and the winding shape measurement result of the side surface of the coil wound up by the coiler equipment. A coil winding shape pass / fail judgment method for judging,
A tip / tail end length calculation step of a target width or less that calculates a tip / tail length less than a target width from the shape measurement result of the steel sheet;
A tip / tail end length calculation step after rolling for calculating a tip / tail end length after rolling by mass flow calculation from the calculated tip / tail end length;
A coil inner diameter / outer diameter masking distance calculating step for calculating a coil inner diameter / outer diameter masking distance by calculating the coil diameter from the calculated tip / tail end length after rolling,
Masking processing step of masking the shape measurement result corresponding to the coil inner diameter / outer diameter masking distance out of the coil shape measurement result of the wound coil so as not to be used for pass / fail judgment;
A pass / fail determination step for determining pass / fail of the coil winding shape based on the masked shape measurement result;
A coil winding shape acceptance / rejection determination method characterized by comprising:
［２］ 熱間圧延ラインの圧延機の上流に設置された形状計と、コイラ設備で巻き取られたコイルの側面の巻き形状を測定する巻き形状測定器とを具備し、コイル巻き形状の合否を判定するコイル巻き形状合否判定装置であって、
前記形状計の直下の鋼板の形状測定結果から目標幅以下の先端・尾端長さを演算する目標幅以下の先端・尾端長さ演算手段と、
演算した先端・尾端長さからマスフロー計算により圧延後の先端・尾端長さを演算する圧延後の先端・尾端長さ演算手段と、
演算した圧延後の先端・尾端長さからコイル径演算により、コイル内径・外径マスキング距離を演算するコイル内径・外径マスキング距離演算手段と、
前記巻き形状測定器で測定したコイルの形状測定結果の内、前記コイル内径・外径マスキング距離にあたる形状測定結果を合否判定に用いないようにマスキングするマスキング処理手段と、
マスキングされた形状測定結果に基づいてコイル巻き形状の合否を判定する合否判定手段と、
を具備することを特徴とするコイル巻き形状合否判定装置。
[2] A shape meter installed upstream of the rolling mill in the hot rolling line and a winding shape measuring instrument for measuring the winding shape of the side surface of the coil wound up by the coiler equipment, and whether the coil winding shape is acceptable or not. A coil winding shape pass / fail determining device for determining
A tip / tail end length calculating means for calculating the tip / tail end length below the target width from the shape measurement result of the steel sheet directly below the shape meter;
A tip / tail end length calculating means after rolling for calculating a tip / tail end length after rolling by mass flow calculation from the calculated tip / tail end length;
Coil inner diameter / outer diameter masking distance calculating means for calculating the coil inner diameter / outer diameter masking distance by calculating the coil diameter from the calculated tip / tail end length after rolling,
Of the coil shape measurement results measured with the winding shape measuring instrument, masking processing means for masking so as not to use the shape measurement results corresponding to the coil inner diameter / outer diameter masking distance for pass / fail judgment,
Pass / fail determining means for determining pass / fail of the coil winding shape based on the masked shape measurement result;
A coil winding shape pass / fail judgment device comprising:
本発明によれば、コイル形状合否判定での誤判定をなくするようにしたので、不要なコイル巻き直し工程がなくなりエネルギー原単位の削減、出荷までの時間短縮効果、ならびに形状不良コイル流出の抑止が可能である。 According to the present invention, since the erroneous determination in the coil shape pass / fail determination is eliminated, the unnecessary coil rewinding process is eliminated, the energy basic unit is reduced, the time until shipment is shortened, and the outflow of the defective shape coil is suppressed. Is possible.
本発明を実施するための形態について、以下に図ならびに数式を用いて説明を行う。図１は、本発明に係るコイル巻き形状合否判定装置の構成例を示す図である。図中、１は仕上圧延機、２はクロップシャー、３は形状計、４はコイラ設備、５は巻き形状測定器、６は鋼板、および７は演算器を、それぞれ表す。なお、図中、下段に示した５つの図は、熱間圧延ラインにおける鋼板の形状変化（板状の鋼板からコイル形状へ）を模式的に示す図である。 DESCRIPTION OF EMBODIMENTS Embodiments for carrying out the present invention will be described below with reference to the drawings and mathematical expressions. FIG. 1 is a diagram showing a configuration example of a coil winding shape acceptance / rejection determination device according to the present invention. In the figure, 1 is a finish rolling mill, 2 is a crop shear, 3 is a shape meter, 4 is a coiler facility, 5 is a winding shape measuring device, 6 is a steel plate, and 7 is a calculator. In addition, in the figure, the five diagrams shown in the lower part are diagrams schematically showing the shape change of the steel plate (from the plate-shaped steel plate to the coil shape) in the hot rolling line.
図１の上段に示す設備列は、熱間圧延ラインの主な設備構成に基づくものである。７つのスタンドにより構成される仕上圧延機１、この上流に鋼板６の先尾端をカットするクロップシャー２、さらにこの上流に鋼板６の形状を測定する形状計３が設置されている。鋼板６は仕上圧延機１で仕上圧延されてストリップとなり、最終工程としてコイル状にコイラ設備４で巻き取られる。巻き取られたコイルは、巻き形状測定器５でコイルの側面形状が測定される。演算器７では、形状計３の直下での形状測定値、および巻き形状測定器５での巻き取られたコイルのコイル形状測定値に基づいて、コイル形状合否判定処理が実施される。 The equipment row shown in the upper part of FIG. 1 is based on the main equipment configuration of the hot rolling line. A finishing mill 1 composed of seven stands, a crop shear 2 for cutting the leading end of the steel plate 6 upstream thereof, and a shape meter 3 for measuring the shape of the steel plate 6 further upstream are installed. The steel plate 6 is finish-rolled by the finish rolling mill 1 to form a strip, and is wound up by the coiler equipment 4 in a coil shape as a final process. The wound coil measuring instrument 5 measures the coil side surface shape. In the computing unit 7, a coil shape pass / fail determination process is performed based on the shape measurement value immediately below the shape meter 3 and the coil shape measurement value of the coil wound by the winding shape measurement device 5.
合格判定であれば次工程へ、不良判定であれば巻き直しを実施するためのラインにコイルが搬送される。図２は、従来のコイル巻き形状合否判定処理フローを示す図である。 If it is a pass determination, the coil is conveyed to the next process, and if it is a defect determination, the coil is conveyed to a line for rewinding. FIG. 2 is a diagram showing a conventional coil winding shape pass / fail determination processing flow.
図２（ａ）は、コイル巻き形状測定器でコイルの側面形状を測定後、コイルの巻きズレ量を演算し、この巻きズレ量が閾値範囲であるか否かによって合否判定処理を実施する処理フローを示している。合否判定で合格した場合は、次工程に送られるが、不合格の場合は、コイルの巻き直しを行った後に次工程に送られる
また、図２（ｂ）の処理フローは、鋼板の先尾端の目標幅に達しない部分を除外すべく、コイル内外径部位の内外径それぞれから径方向の一定距離（一定長さ）の形状計測データを除外するマスキング処理を実施するステップを加えている点が、図２（ａ）の処理フローとの相違している。
FIG. 2A shows a process of calculating a coil winding deviation amount after measuring a coil side shape with a coil winding shape measuring instrument and performing a pass / fail judgment process depending on whether or not the winding deviation amount is within a threshold range. The flow is shown. If it is accepted or rejected, it is sent to the next process. If it is not accepted, it is sent to the next process after rewinding the coil. Also, the processing flow in FIG. In order to exclude the portion that does not reach the target width at the end, a step of performing masking processing for excluding shape measurement data of a certain distance (constant length) in the radial direction from the inner and outer diameters of the inner and outer diameter portions of the coil is added. However, this is different from the processing flow of FIG.
図３は、本発明に係るコイル巻き形状合否判定方法におけるコイル内径部位の処理フローを示す図である。図２（ｂ）にて示した処理フローでは、予め設定した一定距離にてマスキング処理を行っているが、本処理フローでは、Step10の鋼板先端形状測定とこれに続くStep11〜Step13にてマスキング処理する距離（長さ）を演算している点が異なっている。 FIG. 3 is a diagram showing a processing flow of a coil inner diameter portion in the coil winding shape acceptance / rejection determination method according to the present invention. In the processing flow shown in FIG. 2 (b), masking processing is performed at a predetermined distance, but in this processing flow, masking processing is performed at Step 10 to Step 13 and subsequent Step 11 to Step 13. The difference is that the distance (length) is calculated.
先ず、Step10にて、コイル内径部位となる鋼板の先端形状を、クロップシャーの上流に設置した形状計にて測定する。次に、Step11にて、この測定値を基に、目標幅より狭くなる鋼板の先端長さy[mm]を演算する。 First, in Step 10, the tip shape of the steel plate that becomes the coil inner diameter portion is measured with a shape meter installed upstream of the crop shear. Next, in Step 11, based on this measured value, the tip length y [mm] of the steel sheet that becomes narrower than the target width is calculated.
次に、クロップシャーで先端がz [mm]だけカットされると、残された目標幅より狭くなる鋼板の先端長さx [mm]を、以下の（１）式にて算出する。 Next, the tip length x [mm] of the steel sheet that becomes narrower than the remaining target width when the tip is cut by the crop shear by z [mm] is calculated by the following equation (1).
その後、圧延後の目標幅より狭くなるストリップの先端長さX [mm]を、マスフロー計算により以下の（２）式のように求める（Step12）。 Thereafter, the length X [mm] of the strip that becomes narrower than the target width after rolling is obtained by mass flow calculation as shown in the following equation (2) (Step 12).
ここで、h[mm]、w[mm]、H[mm]、W[mm]、はそれぞれ諸元情報として与えられる圧延前の鋼板厚、圧延前の鋼板幅、圧延後のストリップ厚、圧延後のストリップ幅である。 Here, h [mm], w [mm], H [mm], and W [mm] are the steel sheet thickness before rolling, the steel sheet width before rolling, the strip thickness after rolling, and the rolling given as specification information, respectively. Later strip width.
最後に、コイル径演算により、コイル内径部位のマスキング処理をすべき距離を演算する。目標幅より狭くなるストリップの先端のうち、目標幅より狭くなり始める境界が、マンドレルに巻きついた後のどのコイル径（直径R[mm]）のところに来るかを演算する。 Finally, the distance to be masked for the coil inner diameter portion is calculated by the coil diameter calculation. It is calculated which coil diameter (diameter R [mm]) after winding around the mandrel the boundary that begins to become narrower than the target width among the tips of the strip narrower than the target width is calculated.
直径R[mm]は、コイラ設備マンドレル直径をr[mm]とし、先に演算したストリップの先端長さX [mm]を用いて、コイル径演算により以下の（３）式のように求めることができる。 The diameter R [mm] is obtained as shown in the following equation (3) by calculating the coil diameter using the strip length X [mm] of the strip calculated in advance as r [mm]. Can do.
コイル内径部位のマスキング処理をすべき径方向の距離R_in [mm]は、以下の（４）式のように演算することができる（Step13）。 The radial distance R_in [mm] to be masked for the coil inner diameter portion can be calculated as in the following equation (4) (Step 13).
巻き形状測定器で巻き形状を測定（Step14）したコイル内径から、上記距離R_in [mm]を加えた距離分だけマスキング処理を行う（Step15）。 Masking processing is performed for the distance obtained by adding the above-mentioned distance R_in [mm] from the inner diameter of the coil whose winding shape has been measured with the winding shape measuring instrument (Step 14) (Step 15).
次に、マスキング処理した以外の巻き形状（端面の凹凸）が、閾値以内かどうかの判定を行う（Step16）。閾値以内であれば、合格判定（Step17）をし、閾値を超えていれば、不合格判定（Step18）をする。 Next, it is determined whether or not the winding shape other than the masking process (end surface irregularities) is within a threshold (Step 16). If it is within the threshold value, a pass judgment (Step 17) is made, and if it exceeds the threshold value, a fail judgment (Step 18) is made.
図４は、本発明に係るコイル巻き形状合否判定方法におけるコイル外径部位の処理フローを示す図である。図３が、コイル内径部位すなわちストリップの先端を対象にしていたのに対して、図４は、コイル外径部位すなわちストリップの尾端を対象にしている点が異なる。 FIG. 4 is a diagram showing a processing flow of a coil outer diameter portion in the coil winding shape acceptance / rejection determination method according to the present invention. 3 differs from the coil inner diameter portion, that is, the tip of the strip, whereas FIG. 4 differs from the coil outer diameter portion, that is, the tail end of the strip.
先ず、Step20にて、コイル外径部位となる鋼板の尾端形状を、クロップシャーの上流に設置した形状計にて測定する。次に、Step21にて、この測定値を基に、目標幅より狭くなる鋼板の尾端長さy2[mm]を演算する。 First, in Step 20, the shape of the tail end of the steel sheet that becomes the coil outer diameter portion is measured with a shape meter installed upstream of the crop shear. Next, in Step 21, based on this measurement value, the tail end length y2 [mm] of the steel sheet narrower than the target width is calculated.
次に、クロップシャーで尾端がz2 [mm]だけカットされると、残された目標幅より狭くなる鋼板の尾端長さx2 [mm]を、以下の（５）式にて算出する。 Next, when the tail end is cut by z2 [mm] by the crop shear, the tail end length x2 [mm] of the steel sheet that becomes narrower than the remaining target width is calculated by the following equation (5).
その後、鋼板の圧延後の目標幅より狭くなるストリップの尾端長さX2 [mm]を、マスフロー演算により以下の（６）式のように求める（Step22）。 Thereafter, the tail end length X2 [mm] of the strip that is narrower than the target width after rolling of the steel sheet is obtained by mass flow calculation as shown in the following equation (6) (Step 22).
ストリップ全長X3[mm]は、諸元より与えられる圧延前の鋼板全長x3[mm]より、以下の（７）式のように求めることができる。 The total length X3 [mm] of the strip can be obtained from the total length x3 [mm] of the steel sheet before rolling given by the specifications as shown in the following equation (7).
そして、目標幅より狭くなるストリップの尾端長さX2[mm]を除いた圧延後のストリップ長X4 [mm]は、以下の（８）式のように求めることができる。 The strip length X4 [mm] after rolling excluding the strip tail end length X2 [mm], which is narrower than the target width, can be obtained by the following equation (8).
最後に、コイル径演算により、コイル外径部位のマスキング処理をすべき距離を演算する。目標幅より狭くなるストリップの尾端のうち、目標幅より狭くなり始める境界が、マンドレルに巻きついた後のどのコイル径（直径R4[mm]）のところに来るかを演算する。 Finally, the distance to be subjected to the masking process of the coil outer diameter portion is calculated by the coil diameter calculation. It is calculated which coil diameter (diameter R4 [mm]) where the boundary that starts to become narrower than the target width of the tail end of the strip that becomes narrower than the target width comes after winding around the mandrel is calculated.
直径R4[mm]は、コイラ設備マンドレル直径をr[mm]とし、先に演算したストリップの尾端長さX4 [mm]を用いて、コイル径演算により以下の（９）式のように求めることができる。 The diameter R4 [mm] is obtained as shown in the following formula (9) by calculating the coil diameter using the strip tail length X4 [mm] calculated earlier, with the diameter of the coiler equipment mandrel as r [mm]. be able to.
そして、圧延前の鋼板の全長X3[mm] に相当するコイル状にした際の直径R3[mm]は、以下の（１０）式のように求められる。 And the diameter R3 [mm] at the time of making it the coil shape corresponded to the full length X3 [mm] of the steel plate before rolling is calculated | required like the following (10) Formula.
したがって、圧延前の鋼板のX2[mm] に相当するコイル状にした際の径方向の幅R2[mm]は、以下の（１１）式のように求められる。 Therefore, the radial width R2 [mm] when coiled corresponding to X2 [mm] of the steel sheet before rolling is obtained as in the following equation (11).
最終的に、外径R4より外側にマスキング処理をすべき距離R_out[mm]は、以下の（１１）式のように求めることができる。 Finally, the distance R_out [mm] to be masked outside the outer diameter R4 can be obtained as in the following equation (11).
このようにマスキングをすべき距離を求めた以降のマスキング処理を含めた処理フロー（Step25〜28）は前述の図３と同様である。 The processing flow (Steps 25 to 28) including the masking process after obtaining the distance to be masked in this way is the same as that in FIG.
コイル内外径部位の両方で合格と判定されたコイルは次工程へ送られ、コイル内外径部位のいずれかで不合格と判定されたコイルは巻き直しを実施したのち、巻き直し終了後に次工程へ送られる。 Coils that are determined to be acceptable at both the inner and outer diameter parts of the coil are sent to the next process, and the coils that are determined to be unacceptable at any of the inner and outer diameter parts of the coil are rewound and then rewinded to the next process. Sent.
本発明の適用によって、巻直し発生率が１２．０３５（％）となり、それまでの一定距離でのマスキング処理による合否判定での巻直し発生率１２．２８５（％）と比べて、０．２５（％）巻直し発生率が減少することを確認した。これにより、エネルギー原単位の削減、出荷までの時間短縮効果、ならびに形状不良コイル流出の抑止が可能である。 By applying the present invention, the rewinding occurrence rate becomes 12.35 (%), which is 0.25 compared to the rewinding occurrence rate 12.285 (%) in the pass / fail judgment by the masking process at a certain distance until then. (%) It was confirmed that the occurrence rate of rewinding decreased. As a result, it is possible to reduce the energy intensity, reduce the time until shipment, and suppress the outflow of defectively shaped coils.
１ 仕上圧延機
２ クロップシャー
３ 形状計
４ コイラ設備
５ 巻き形状測定器
６ 鋼板
７ 演算器
DESCRIPTION OF SYMBOLS 1 Finishing mill 2 Crop shear 3 Shape meter 4 Coiler equipment 5 Winding shape measuring device 6 Steel plate 7 Calculator
Claims (2)
前記鋼板の形状測定結果から目標幅以下の先端・尾端長さを演算する目標幅以下の先端・尾端長さ演算ステップと、
演算した先端・尾端長さからマスフロー計算により圧延後の先端・尾端長さを演算する圧延後の先端・尾端長さ演算ステップと、
演算した圧延後の先端・尾端長さからコイル径演算により、コイル内径・外径マスキング距離を演算するコイル内径・外径マスキング距離演算ステップと、
前記巻き取られたコイルの形状測定結果の内、前記コイル内径・外径マスキング距離にあたる形状測定結果を合否判定に用いないようにマスキングするマスキング処理ステップと、
マスキングされた形状測定結果に基づいてコイル巻き形状の合否を判定する合否判定ステップと、
を有することを特徴とするコイル巻き形状合否判定方法。 Coil that determines the pass / fail of the coil winding shape based on the shape measurement result of the steel sheet directly below the shape meter installed upstream of the rolling mill of the hot rolling line and the winding shape measurement result of the side surface of the coil wound by the coiler equipment A method for determining whether a winding shape is acceptable,
A tip / tail end length calculation step of a target width or less that calculates a tip / tail length less than a target width from the shape measurement result of the steel sheet;
A tip / tail end length calculation step after rolling for calculating a tip / tail end length after rolling by mass flow calculation from the calculated tip / tail end length;
A coil inner diameter / outer diameter masking distance calculating step for calculating a coil inner diameter / outer diameter masking distance by calculating the coil diameter from the calculated tip / tail end length after rolling,
Masking processing step of masking the shape measurement result corresponding to the coil inner diameter / outer diameter masking distance out of the coil shape measurement result of the wound coil so as not to be used for pass / fail judgment;
A pass / fail determination step for determining pass / fail of the coil winding shape based on the masked shape measurement result;
A coil winding shape acceptance / rejection determination method characterized by comprising:
前記形状計の直下の鋼板の形状測定結果から目標幅以下の先端・尾端長さを演算する目標幅以下の先端・尾端長さ演算手段と、
演算した先端・尾端長さからマスフロー計算により圧延後の先端・尾端長さを演算する圧延後の先端・尾端長さ演算手段と、
演算した圧延後の先端・尾端長さからコイル径演算により、コイル内径・外径マスキング距離を演算するコイル内径・外径マスキング距離演算手段と、
前記巻き形状測定器で測定したコイルの形状測定結果の内、前記コイル内径・外径マスキング距離にあたる形状測定結果を合否判定に用いないようにマスキングするマスキング処理手段と、
マスキングされた形状測定結果に基づいてコイル巻き形状の合否を判定する合否判定手段と、
を具備することを特徴とするコイル巻き形状合否判定装置。 It has a shape meter installed upstream of the rolling mill in the hot rolling line and a winding shape measuring instrument for measuring the winding shape of the side surface of the coil wound up by the coiler equipment, and determines the pass / fail of the coil winding shape. A coil winding shape pass / fail judging device,
A tip / tail end length calculating means for calculating the tip / tail end length below the target width from the shape measurement result of the steel sheet directly below the shape meter;
A tip / tail end length calculating means after rolling for calculating a tip / tail end length after rolling by mass flow calculation from the calculated tip / tail end length;
Coil inner diameter / outer diameter masking distance calculating means for calculating the coil inner diameter / outer diameter masking distance by calculating the coil diameter from the calculated tip / tail end length after rolling,
Of the coil shape measurement results measured with the winding shape measuring instrument, masking processing means for masking so as not to use the shape measurement results corresponding to the coil inner diameter / outer diameter masking distance for pass / fail judgment,
Pass / fail determining means for determining pass / fail of the coil winding shape based on the masked shape measurement result;
A coil winding shape pass / fail judgment device comprising:
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| JP7468571B2 (en) | 2021-08-03 | 2024-04-16 | Ｊｆｅスチール株式会社 | Method for generating a winding shape judgment model for a steel strip coil, a winding shape judgment method, a treatment process setting method, and a method for manufacturing a steel strip coil |
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| JP2000131048A (en) * | 1998-10-22 | 2000-05-12 | Kawasaki Steel Corp | Coil winding form measurement method and device therefor |
| JP2002148037A (en) * | 2000-11-07 | 2002-05-22 | Kawasaki Steel Corp | Method for judging measurement of coil end and method for calculating telescopic amount of coil |
| JP2002243433A (en) * | 2001-02-20 | 2002-08-28 | Kawasaki Steel Corp | Coil shape measuring instrument |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2000131048A (en) * | 1998-10-22 | 2000-05-12 | Kawasaki Steel Corp | Coil winding form measurement method and device therefor |
| JP2002148037A (en) * | 2000-11-07 | 2002-05-22 | Kawasaki Steel Corp | Method for judging measurement of coil end and method for calculating telescopic amount of coil |
| JP2002243433A (en) * | 2001-02-20 | 2002-08-28 | Kawasaki Steel Corp | Coil shape measuring instrument |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP7468571B2 (en) | 2021-08-03 | 2024-04-16 | Ｊｆｅスチール株式会社 | Method for generating a winding shape judgment model for a steel strip coil, a winding shape judgment method, a treatment process setting method, and a method for manufacturing a steel strip coil |
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