JP2007152388A - Method and apparatus for correcting perpendicularity of flange of wide flange shape - Google Patents

Method and apparatus for correcting perpendicularity of flange of wide flange shape Download PDF

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JP2007152388A
JP2007152388A JP2005350437A JP2005350437A JP2007152388A JP 2007152388 A JP2007152388 A JP 2007152388A JP 2005350437 A JP2005350437 A JP 2005350437A JP 2005350437 A JP2005350437 A JP 2005350437A JP 2007152388 A JP2007152388 A JP 2007152388A
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flange
perpendicularity
amount
squareness
shaped steel
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Toru Takeuchi
徹 竹内
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JFE Steel Corp
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JFE Steel Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a method and an apparatus for correcting perpendicularity of the flange of a wide flange shape by which the defective perpendicularity of the flange is accurately corrected over the entire length of of the wide flange shape. <P>SOLUTION: By providing a perpendicularity/flange folding measuring means 17 on the inlet side of a perpendicularity correcting machine 16 with which the perpendicularity of the flange of the wide flange shape is corrected by pressing the outside of the right and the left flanges 11a with vertical rolls 14, 15 while restraining the up and down sides of the web 11b by horizontal rolls 12, 13 and measuring not only the perpendicularity but the flange folding by using the means, the tilting of the vertical rolls is adjusted on the basis of the result of these measurement. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、Ｈ形鋼のフランジ直角度矯正方法および装置に関する。   The present invention relates to a method and apparatus for correcting the perpendicularity of a flange of an H-shaped steel.

Ｈ形鋼は一般に同軸上に上下水平ロールと左右垂直ロールを備えたユニバーサルミルにより熱間圧延成形される。熱間圧延成形されたＨ形鋼は圧延後冷却されて、冷却中に発生した反りや曲りはローラ矯正機によって矯正される。
しかし、圧延中に上下水平ロールがガタや弾性変形などによってロール軸方向に動くことによって、フランジの上下左右で厚みが異なることがある。また、フランジ内面及び外面の温度差や冷却過程の違い及びウェブとフランジのつけ根とフランジ部の厚み差等により温度差が生じる。 The H-section steel is generally hot-rolled by a universal mill having coaxial upper and lower horizontal rolls and right and left vertical rolls. The hot-rolled H-shaped steel is cooled after rolling, and warpage and bending generated during cooling are corrected by a roller straightener.
However, when the upper and lower horizontal rolls move in the roll axis direction due to play or elastic deformation during rolling, the thickness may be different between the upper, lower, left and right sides of the flange. Further, a temperature difference is caused by a difference in temperature between the inner surface and the outer surface of the flange, a difference in cooling process, a thickness difference between the base of the web and the flange and the flange portion, and the like.

これらの結果、冷却後のＨ形鋼はフランジ直角度不良（フランジがウェブと斜交した状態になる断面形状不良であり、単に直角度不良ともいう）を生じやすい。この直角度不良をオンラインで矯正する方法として、ウェブ上下面を水平ロールで拘束しつつ左右のフランジ外面を竪ロールで押圧する方法が知られている（例えば特許文献１〜３参照）。竪ロールは、傾動可能に支持されており、上下に分けた各部分を個別に傾動可能としたもの（特許文献１）や、一体型であって、フラットロール形状のもの（特許文献２）あるいはツヅミ型ロール形状のもの（特許文献３）が用いられている。   As a result, the H-shaped steel after cooling tends to cause a flange perpendicularity defect (a cross-sectional shape defect in which the flange is obliquely crossed with the web, also simply called a perpendicularity defect). As a method for correcting this perpendicularity defect online, there is known a method in which the upper and lower surfaces of the web are restrained by a horizontal roll and the outer surfaces of the left and right flanges are pressed by a scissors roll (see, for example, Patent Documents 1 to 3). The scissors roll is supported so as to be tiltable, and each part divided into upper and lower parts can be tilted individually (Patent Document 1), or an integrated type having a flat roll shape (Patent Document 2) or A Tsutsumi-type roll (Patent Document 3) is used.

なお、特許文献１では、長手方向の端部（非定常部）と定常部とで竪ロールの押込み量を変えることにより矯正後の長手方向での直角度の均一化を図っている。また、特許文献２では、上下各１対ずつの水平ロールを左右方向に移動自在とすることでフランジつけ根部の拘束を可能として装置の簡素化・小型化を図ると共に矯正効果を高めている。また、特許文献３では、水平ロールと竪ロールとを備えた直角度矯正機の入側に、フランジを拘束する多段式ガイドローラからなる反り材案内装置を備えたことにより、Ｈ形鋼先端に反りがある場合でも噛込み時にフランジ中心と竪ロール中心とを一致可能としている。
特開平１−１１３１２３号公報 特開平５−７９３４号公報 特開平８−６６７２５号公報 In Patent Document 1, the squareness in the longitudinal direction after correction is made uniform by changing the pressing amount of the scissors roll between the end portion (unsteady portion) in the longitudinal direction and the steady portion. Further, in Patent Document 2, by making a pair of upper and lower horizontal rolls movable in the left-right direction, it is possible to restrain the flange root, thereby simplifying and reducing the size of the apparatus and enhancing the correction effect. Moreover, in patent document 3, by providing the curvature material guide apparatus which consists of a multistage type guide roller which restrains a flange on the entrance side of the perpendicularity straightening machine provided with the horizontal roll and the scissors roll, it is in the tip of H section steel. Even when there is a warp, the center of the flange and the center of the scissors roll can be matched when biting.
JP-A-1-113123 JP-A-5-7934 JP-A-8-66725

上記従来の技術では、直角度矯正機の入側でＨ形鋼の直角度外れ量を計測し、その結果に基づいて竪ロールの押込み量あるいは傾動量を調整している。しかしながら、矯正後のＨ形鋼の長手方向における直角度のばらつきを充分小さくすることができず、直角度不良の矯正精度に限界があった。本発明は、この限界を打破し、フランジ直角度不良をＨ形鋼全長にわたって精度よく矯正できるＨ形鋼のフランジ直角度矯正方法及び装置を提供することを目的とする。   In the above-described conventional technique, the amount of squareness deviation of the H-section steel is measured on the entrance side of the squareness straightening machine, and the pushing amount or tilting amount of the scissors roll is adjusted based on the result. However, the variation in perpendicularity in the longitudinal direction of the H-shaped steel after correction cannot be sufficiently reduced, and there is a limit to the correction accuracy of perpendicularity defects. An object of the present invention is to provide a method and apparatus for correcting a flange perpendicularity of an H-shaped steel that can overcome this limitation and accurately correct a flange perpendicularity defect over the entire length of the H-shaped steel.

本発明者は、前記目的を達成すべく鋭意検討し、その結果、直角度矯正機の入側でＨ形鋼の直角度のみならずフランジ折れも計測し、それらの結果に基づいて竪ロールの傾動量を制御することにより、矯正後のＨ形鋼の全長にわたる直角度のばらつきを充分小さくすることができることを見出した。
すなわち、本発明（１）は、Ｈ形鋼のウェブ面を拘束する上下の水平ロールと同Ｈ形鋼のフランジ外面を傾動可能に押圧する左右の竪ロールとを備えた直角度矯正機を用いて前記Ｈ形鋼のフランジ直角度を矯正するにあたり、前記直角度矯正機の入側で前記Ｈ形鋼の直角度外れ量及びフランジ折れ量を計測し、それらの計測結果に基づいて前記竪ロールの傾動量を制御することを特徴とするＨ形鋼のフランジ直角度矯正方法である。 The present inventor has intensively studied to achieve the above-mentioned object, and as a result, not only the squareness of the H-section steel but also the flange breakage is measured on the entrance side of the squareness straightening machine. It was found that by controlling the amount of tilting, the variation in squareness over the entire length of the straightened H-section steel can be made sufficiently small.
That is, the present invention (1) uses a squareness straightening machine provided with upper and lower horizontal rolls that restrain the web surface of the H-shaped steel and left and right scissors rolls that tiltably press the flange outer surface of the H-shaped steel. When correcting the perpendicularity of the flange of the H-shaped steel, the perpendicularity deviation amount and the amount of flange breakage of the H-shaped steel are measured at the entry side of the perpendicularity straightening machine, and the heel roll is measured based on the measurement results. This is a method for correcting the perpendicularity of the flange of an H-section steel, characterized by controlling the amount of tilting of the steel.

また、本発明（２）は、本発明（１）の方法を好適に実施するための装置、すなわち、Ｈ形鋼のウェブ面を拘束する上下の水平ロールと同Ｈ形鋼のフランジ外面を傾動可能に押圧する左右の竪ロールとを備えた直角度矯正機を有してなるＨ形鋼のフランジ直角度矯正装置において、前記直角度矯正機の入側で前記Ｈ形鋼の直角度及びフランジ折れ算出用の距離を計測する直角度・フランジ折れ計測手段と、該直角度・フランジ折れ計測手段の計測結果を用いて直角度外れ量及びフランジ折れ量を算出し、該算出結果を用いて前記左右の竪ロールの傾動量を算出する演算装置と、前記左右の竪ロールを傾動させる傾動装置と、前記演算装置により算出された傾動量に基づいて前記傾動装置の動作を制御する制御部とを有することを特徴とするＨ形鋼のフランジ直角度矯正装置である。   Further, the present invention (2) is an apparatus for suitably carrying out the method of the present invention (1), that is, the upper and lower horizontal rolls that restrain the web surface of the H-shaped steel and the flange outer surface of the H-shaped steel are tilted. An H-section steel flange squareness straightening device having a squareness straightening machine with left and right scissors rolls that can be pressed, wherein the squareness and flange of the H-section steel on the entry side of the squareness straightening machine A straight angle / flange breakage measuring means for measuring the distance for calculating the bend, and using the measurement result of the perpendicularity / flange breakage measuring means to calculate the perpendicularity deviation amount and the flange bend amount, and using the calculation results, An arithmetic device that calculates the tilt amount of the left and right heel rolls, a tilt device that tilts the left and right heel rolls, and a control unit that controls the operation of the tilt device based on the tilt amounts calculated by the arithmetic device. H characterized by having A flange right angle degree of the correction device of steel.

本発明によれば、直角度・フランジ折れ計測手段により、直角度外れ量だけでなくフランジ折れ量も計測し、それらの量に基づいて竪ロールの傾動を制御するので、Ｈ形鋼の全長にわたる直角度に対するフランジ折れの影響にも対応でき、Ｈ形鋼全長にわたって直角度不良を精度よく矯正できる。   According to the present invention, the perpendicularity / flange breakage measuring means measures not only the perpendicularity deviation amount but also the flange breakage amount, and controls the tilting of the scissors roll based on these amounts. It is possible to cope with the influence of flange breakage on the perpendicularity, and correct the perpendicularity defect accurately over the entire length of the H-section steel.

図１は、本発明の実施の形態の１例を示す装置概略図である。この直角度矯正装置１０において、直角度矯正機１６は、Ｈ形鋼１１の通材ライン内にあって、矢示３０の方向に通材されるＨ形鋼１１のウェブ１１ｂの面を拘束する上下の水平ロール１２,１３と、Ｈ形鋼１１のフランジ１１ａの外面を傾動可能に押圧する左右の竪ロール１４，１５とを備えている。左右の竪ロール１４，１５は矢示４０の方向に傾動可能である。   FIG. 1 is an apparatus schematic diagram showing an example of an embodiment of the present invention. In the squareness straightening device 10, the squareness straightening machine 16 is in the threading line of the H-section steel 11 and restrains the surface of the web 11 b of the H-section steel 11 that is threaded in the direction of the arrow 30. The upper and lower horizontal rolls 12 and 13 and the left and right vertical rolls 14 and 15 that press the outer surface of the flange 11a of the H-section steel 11 so as to be tiltable are provided. The left and right scissors rolls 14 and 15 can tilt in the direction of arrow 40.

直角度矯正機１０の入側（上流側）には、直角度・フランジ折れ計測手段１７が配置されている。直角度・フランジ折れ計測手段１７は、Ｈ形鋼１１の直角度外れ量（図２に示す左右のＴ１，Ｔ２、すなわち、左右各フランジ外面の上下２端点間のウェブ幅方向距離、で定義される）、およびフランジ折れ量（図３に示す左上、左下、右上、右下のｔ１１，ｔ１２，ｔ２１，ｔ２２、すなわち、左右各フランジ内面の上下各端点とウェブ連結端点の間のウェブ幅方向距離、で定義される）の算出用の距離を計測する手段である。この距離とは、図３に示す左の基準面から左フランジ幅の上端、中央、下端の各点までの距離Ｌ１１，Ｌ１０，Ｌ１２、及び右の基準面から右フランジ幅の上端、中央、下端の各点までの距離Ｌ２１，Ｌ２０，Ｌ２２を指す。直角度・フランジ折れ計測手段１７は、これらの距離を計測できるものであればいかなるものであってもよく、例えばレーザ距離計、超音波距離計、タッチローラ距離計等々のいずれも好ましく用い得る。 On the entry side (upstream side) of the perpendicularity straightening machine 10, a perpendicularity / flange breakage measuring means 17 is disposed. The perpendicularity / flange breakage measuring means 17 is a perpendicularity deviation amount of the H-section steel 11 (the left and right T 1 and T 2 shown in FIG. 2 , that is, the distance in the web width direction between the upper and lower two end points of the left and right flanges). It is defined), and the flange fold amount (upper left of FIG. 3, lower left, upper right, t 11 in the lower right, t 12, t 21, t 22, i.e., the right and left flanges inner surface and below the end points and the web connecting the end points Is a means for measuring a distance for calculation (defined by the web width direction distance between). The distances are distances L11, L10, and L12 from the left reference plane to the upper end, center, and lower end of the left flange width shown in FIG. 3, and the upper end, center, and lower end of the right flange width from the right reference plane. The distances L21, L20, and L22 to each point are indicated. The squareness / flange breakage measuring means 17 may be any device that can measure these distances, and for example, any of a laser distance meter, an ultrasonic distance meter, a touch roller distance meter, and the like can be preferably used.

直角度・フランジ折れ計測手段１７には、演算装置１８が内蔵されている。なお、内蔵とせず外付けとしたものでもよい。演算装置１８は、直角度・フランジ折れ計測手段１７による距離Ｌ１１，Ｌ１０，Ｌ１２，Ｌ２１，Ｌ２０，Ｌ２２の計測結果から、次式により、直角度外れ量Ｔ１，Ｔ２及びフランジ折れ量ｔ１１，ｔ１２，ｔ２１，ｔ２２を算出する。 The perpendicularity / flange breakage measuring means 17 includes an arithmetic device 18. In addition, it may be an external one without being built-in. The arithmetic unit 18 calculates the perpendicularity deviation amounts T 1 , T 2 and the flange folding amount t 11 from the measurement results of the distances L 11, L 10, L 12, L 21, L 20, L 22 by the perpendicularity / flange breakage measuring means 17 according to the following equations. , T 12 , t 21 , t 22 are calculated.

Ｔ１＝Ｌ１１−Ｌ１２ …(1)
Ｔ２＝Ｌ２１−Ｌ２２ …(2)
ｔ１１＝Ｌ１１−Ｌ１０ …(3)
ｔ１２＝Ｌ１２−Ｌ１０ …(4)
ｔ２１＝Ｌ２１−Ｌ２０ …(5)
ｔ２２＝Ｌ２２−Ｌ２０ …(6)
演算装置１８は、さらに、これらの算出結果を用いて、左右の直角度外れ量Ｔ１，Ｔ２をゼロにするための、左右の竪ロール１４，１５の傾動量ε１，ε２を算出する。 T 1 = L11−L12 (1)
T 2 = L21−L22 (2)
t 11 = L11−L10 (3)
t 12 = L12−L10 (4)
t 21 = L21−L20 (5)
t 22 = L22−L20 (6)
The calculation device 18 further calculates the tilt amounts ε1 and ε2 of the left and right saddle rolls 14 and 15 to make the right and left perpendicularity deviation amounts T 1 and T 2 zero by using these calculation results.

また、左右の竪ロール１４，１５の傾動位置を変化させる駆動手段として、傾動装置１９，２０が設けられている。これらはそれぞれ油圧シリンダー１９ａ，２０ａにて構成されている。そして、傾動装置１９，２０の動作を制御するために、制御部２２が設けられている。制御部２２は、図４にブロック図で示すように、演算装置１８から送られた傾動量ε１，ε２の算出結果に基づいて、左右の油圧シリンダー１９ａ，２０ａのロッドを進退させることにより、左右の竪ロール１４，１５の傾動位置を制御する。すなわち、直角度矯正装置１０の制御系は、制御部２２を本体とし、直角度・フランジ折れ計測手段１７に内蔵された演算装置１８を入力部とし、左右の傾動装置１９，２０の油圧シリンダー１９ａ，２０ａのロッドを進退させることにより、左右の竪ロール１４，１５の傾動制御を行うものである。   Further, tilting devices 19 and 20 are provided as drive means for changing the tilting positions of the left and right saddle rolls 14 and 15. These are constituted by hydraulic cylinders 19a and 20a, respectively. A control unit 22 is provided to control the operation of the tilting devices 19 and 20. As shown in a block diagram in FIG. 4, the control unit 22 moves the rods of the left and right hydraulic cylinders 19 a and 20 a forward and backward based on the calculation results of the tilt amounts ε1 and ε2 sent from the arithmetic unit 18. The tilting positions of the heel rolls 14 and 15 are controlled. That is, the control system of the perpendicularity straightening device 10 has the control unit 22 as a main body, the arithmetic unit 18 built in the squareness / flange breakage measuring means 17 as an input unit, and the hydraulic cylinders 19a of the left and right tilting devices 19 and 20. , 20a, the tilt control of the left and right scissors rolls 14 and 15 is performed by advancing and retracting the rods.

ここで、直角度外れ量Ｔ１，Ｔ２と傾動量ε１，ε２について説明する。一般的には直角度矯正を竪ロールの傾動により行なう場合は、変形時のスプリングバック量を考慮して、直角度外れ量Ｔ１，Ｔ２より大きな値の傾動量ε１，ε２を、直角度外れの方向とは逆の方向に与える必要がある。しかしながら、フランジ折れを伴っている場合には、竪ロールの押付けのみによりフランジ折れ量ｔ１１，ｔ１２，ｔ２１，ｔ２２が変化し、それに伴って直角度外れ量Ｔ１，Ｔ２も変化する。したがって、竪ロールの押付けによる直角度外れ量Ｔ１，Ｔ２の変化量も考慮し、傾動量ε１，ε２を算出する必要がある。 Here, the perpendicularity deviation amounts T 1 and T 2 and the tilt amounts ε 1 and ε 2 will be described. In general, when squareness correction is performed by tilting the heel roll, the tilt amounts ε1 and ε2 having values larger than the squareness deviation amounts T 1 and T 2 are taken into consideration when the springback amount at the time of deformation is taken into consideration. It is necessary to give the direction opposite to the direction of detachment. However, when the flange is bent, the flange bending amounts t 11 , t 12 , t 21 , and t 22 change only by pressing the saddle roll, and the perpendicularity deviation amounts T 1 and T 2 also change accordingly. To do. Therefore, it is necessary to calculate the tilt amounts ε1 and ε2 in consideration of the amount of change in the perpendicularity deviation amounts T 1 and T 2 due to the pressing of the heel roll.

図１に示す直角度矯正装置１０を用いたＨ形鋼の直角度矯正方法の実施例を述べる。
テーブル上を搬送されてきたＨ形鋼１１は、直角度・フランジ折れ計測手段１７を通過後、直角度矯正機１６内に送り込まれ、上下の水平ロール１２，１３及び左右の竪ロール１４，１５によって直角度矯正を施される。
直角度・フランジ折れ計測手段１７では、レーザ距離計にて図３に示す左の基準面から左フランジ幅の上端、中央、下端の各点までの距離Ｌ１１，Ｌ１０，Ｌ１２、及び右の基準面から右フランジ幅の上端、中央、下端の各点までの距離Ｌ２１，Ｌ２０，Ｌ２２が計測され、演算装置１８が、前記(1)〜(6)式に基づき、直角度外れ量Ｔ１，Ｔ２及びフランジ折れ量ｔ１１，ｔ１２，ｔ２１，ｔ２２を算出し、この算出結果を用いて、左右の竪ロール１４，１５の傾動量ε１，ε２を算出する。 An embodiment of a method for correcting the squareness of an H-section steel using the squareness straightening device 10 shown in FIG. 1 will be described.
The H-section steel 11 that has been transported on the table passes through the squareness / flange breakage measuring means 17 and is then fed into the squareness straightening machine 16 where the upper and lower horizontal rolls 12 and 13 and the left and right saddle rolls 14 and 15 are sent. The squareness is corrected by.
In the squareness / flange breakage measuring means 17, distances L11, L10, L12 from the left reference plane shown in FIG. 3 to the upper end, center, and lower end points of the left flange width shown in FIG. The distances L21, L20, L22 from the top to the center and the bottom end of the right flange width are measured, and the arithmetic unit 18 is based on the equations (1) to (6), and the perpendicularity deviation amounts T 1 , T 2 and flange bending amounts t11, t12, t21, and t22 are calculated, and the tilt amounts ε1 and ε2 of the left and right scissors rolls 14 and 15 are calculated using the calculation results.

傾動量ε１，ε２の計算式は、鋼種及びサイズごとに、
ε１＝Ｆ１（Ｔ１，Ｔ２，ｔ１１，ｔ１２，ｔ２１，ｔ２２） …(7)
ε２＝Ｆ２（Ｔ１，Ｔ２，ｔ１１，ｔ１２，ｔ２１，ｔ２２） …(8)
で表され、Ｆ１，Ｆ２の具体的な関数形及び式中の定数項の値は予め実験により決定された。 The calculation formulas for the tilting amounts ε1, ε2 are as follows:
ε1 = F 1 (T 1 , T 2 , t 11 , t 12 , t 21 , t 22 ) (7)
ε2 = F 2 (T 1 , T 2 , t 11 , t 12 , t 21 , t 22 ) (8)
The specific function form of F 1 and F 2 and the value of the constant term in the formula were determined in advance by experiments.

図４に示すように、求められた傾動量ε１，ε２は制御部２２へ送られ、その後、制御部２２からのロッド進退指令により、左右の傾動装置１９，２０の油圧シリンダー１９ａ，２０ａの各ロッドがそれぞれ傾動量ε１，ε２に対応する量だけ進退動作する。
このように、直角度・フランジ折れ計測手段１７及び演算装置１８により、計測・演算し、制御部２２により、傾動量ε１，ε２を制御するので、Ｈ形鋼１１の全長にわたり直角度、フランジ折れの変動に応じて傾動量を調整することによりＨ形鋼１１の全長にわたって直角度不良を精度よく矯正できる。因みに、本実施例での直角度矯正後のＨ形鋼全長にわたる直角度のばらつき範囲は、フランジ折れの影響を考慮せず直角度外れ量のみから傾動量を算出していた従来に比べ、約５０％に低減した。 As shown in FIG. 4, the obtained tilting amounts ε1 and ε2 are sent to the control unit 22, and then each of the hydraulic cylinders 19 a and 20 a of the left and right tilting devices 19 and 20 is in response to a rod advance / retreat command from the control unit 22. The rod moves forward and backward by an amount corresponding to the tilt amounts ε1 and ε2, respectively.
In this way, the perpendicularity / flange breakage measuring means 17 and the calculation device 18 measure and compute, and the control unit 22 controls the tilt amounts ε1 and ε2. By adjusting the amount of tilting according to the fluctuation of the squareness, the perpendicularity defect can be accurately corrected over the entire length of the H-section steel 11. Incidentally, the variation range of the perpendicularity over the entire length of the H-shaped steel after the perpendicularity correction in this example is approximately compared to the conventional case where the tilt amount is calculated only from the perpendicularity deviation amount without considering the influence of flange bending. Reduced to 50%.

本発明の実施の形態の１例を示す装置概略図である。It is an apparatus schematic diagram showing an example of an embodiment of the invention. 直角度外れ量の定義説明図である。It is a definition explanatory drawing of perpendicularity deviation amount. フランジ折れ量の定義説明図である。It is a definition explanatory drawing of the amount of bending of a flange. 本発明による制御系を示すブロック図である。It is a block diagram which shows the control system by this invention.

符号の説明Explanation of symbols

１０ 直角度（フランジ直角度）矯正装置
１１ Ｈ形鋼
１１ａ フランジ
１１ｂ ウェブ
１２ 水平ロール（上）
１３ 水平ロール（下）
１４ 竪ロール（左）
１５ 竪ロール（右）
１６ 直角度矯正機
１７ 直角度・フランジ折れ計測手段
１８ 演算装置
１９ 傾動装置（左）
１９ａ 油圧シリンダー
２０ 傾動装置（右）
２０ｂ 油圧シリンダー
２２ 制御部
３０ 通材方向の矢示
４０ 傾動方向の矢示
Ｔ１ 直角度外れ量（左）
Ｔ２ 直角度外れ量（右）
ｔ１１ フランジ折れ量（左上）
ｔ１２ フランジ折れ量（左下）
ｔ２１ フランジ折れ量（右上）
ｔ２２ フランジ折れ量（右下）
ε１ 傾動量（左）
ε２ 傾動量（右） 10 Straightness (flange perpendicularity) straightening device 11 H-section steel 11a Flange 11b Web 12 Horizontal roll (upper)
13 Horizontal roll (bottom)
14 竪 Roll (Left)
15 竪 Roll (right)
16 Straightness Straightening Machine 17 Squareness / Flange Breakage Measuring Means 18 Computing Device 19 Tilt Device (Left)
19a Hydraulic cylinder 20 Tilt device (right)
20b Hydraulic cylinder 22 Control unit 30 Arrow in the direction of material passing 40 Arrow in the direction of tilting T 1 Right angle deviation (left)
T 2 at right angles out-of-round weight (right)
t 11 flange fold amount (upper left)
t 12 Flange breakage (lower left)
t 21 flange fold amount (upper right)
t 22 Folding angle (bottom right)
ε1 Tilt amount (left)
ε2 Tilt amount (right)

Claims (2)

Ｈ形鋼のウェブ面を拘束する上下の水平ロールと同Ｈ形鋼のフランジ外面を傾動可能に押圧する左右の竪ロールとを備えた直角度矯正機を用いて前記Ｈ形鋼のフランジ直角度を矯正するにあたり、前記直角度矯正機の入側で前記Ｈ形鋼の直角度外れ量及びフランジ折れ量を計測し、それらの計測結果に基づいて前記竪ロールの傾動量を制御することを特徴とするＨ形鋼のフランジ直角度矯正方法。   The perpendicularity of the flange of the H-shaped steel using a perpendicularity straightening machine provided with upper and lower horizontal rolls that restrain the web surface of the H-shaped steel and left and right vertical rolls that press the outer surface of the flange of the H-shaped steel in a tiltable manner. When straightening, the amount of perpendicularity deviation and the amount of flange breakage of the H-section steel are measured on the entry side of the perpendicularity straightening machine, and the tilt amount of the scissors roll is controlled based on the measurement results. The flange squareness correction method of H-section steel. Ｈ形鋼のウェブ面を拘束する上下の水平ロールと同Ｈ形鋼のフランジ外面を傾動可能に押圧する左右の竪ロールとを備えた直角度矯正機を有してなるＨ形鋼のフランジ直角度矯正装置において、前記直角度矯正機の入側で前記Ｈ形鋼の直角度及びフランジ折れ算出用の距離を計測する直角度・フランジ折れ計測手段と、該直角度・フランジ折れ計測手段の計測結果を用いて直角度外れ量及びフランジ折れ量を算出し、該算出結果を用いて前記左右の竪ロールの傾動量を算出する演算装置と、前記左右の竪ロールを傾動させる傾動装置と、前記演算装置により算出された傾動量に基づいて前記傾動装置の動作を制御する制御部とを有することを特徴とするＨ形鋼のフランジ直角度矯正装置。   H-shaped steel flange straightening having a perpendicularity straightening machine having upper and lower horizontal rolls that restrain the web surface of the H-shaped steel and left and right vertical rolls that tiltably press the outer surface of the flange of the H-shaped steel In the angle straightening device, a squareness / flange breakage measuring means for measuring the squareness and flange breakage calculation distance of the H-shaped steel on the entry side of the squareness straightening machine, and measurement by the squareness / flange breakage measuring means A calculation device that calculates a right angle deviation amount and a flange bending amount using the result, calculates a tilt amount of the left and right saddle rolls using the calculation result, a tilting device that tilts the left and right saddle rolls, and A flange perpendicularity straightening device for H-section steel, comprising: a control unit that controls the operation of the tilting device based on the tilting amount calculated by the arithmetic device.
JP2005350437A 2005-12-05 2005-12-05 Method and apparatus for correcting perpendicularity of flange of wide flange shape Pending JP2007152388A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014087815A (en) * 2012-10-30 2014-05-15 Nobuyuki Hosono Strain correction device of welding shape steel
KR101443450B1 (en) * 2012-09-27 2014-11-04 현대제철 주식회사 Reforming apparatus for steel
KR101488730B1 (en) 2014-03-26 2015-02-11 주식회사 베스템 Hinge bracket for automobile tail gate
JP2016190268A (en) * 2015-03-30 2016-11-10 Ｊｆｅスチール株式会社 H-section steel flange squareness correction device
CN108332692A (en) * 2017-12-11 2018-07-27 天津智源机械制造股份有限公司 A kind of automatic pole clamping fixture for correcting
US10293438B2 (en) 2015-03-31 2019-05-21 Nisshin Steel Co., Ltd. Device and method for manufacturing welded shaped steel
CN110270608A (en) * 2019-06-25 2019-09-24 中交一公局集团有限公司 A kind of equipment of rectifiable oblique angle T beam flange plate welding deformation
CN111266432A (en) * 2020-03-18 2020-06-12 四川双鑫电气股份有限公司 Shape and position processing device after drawing of ventilation channel steel of large-scale generator

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101443450B1 (en) * 2012-09-27 2014-11-04 현대제철 주식회사 Reforming apparatus for steel
JP2014087815A (en) * 2012-10-30 2014-05-15 Nobuyuki Hosono Strain correction device of welding shape steel
KR101488730B1 (en) 2014-03-26 2015-02-11 주식회사 베스템 Hinge bracket for automobile tail gate
JP2016190268A (en) * 2015-03-30 2016-11-10 Ｊｆｅスチール株式会社 H-section steel flange squareness correction device
US10293438B2 (en) 2015-03-31 2019-05-21 Nisshin Steel Co., Ltd. Device and method for manufacturing welded shaped steel
CN108332692A (en) * 2017-12-11 2018-07-27 天津智源机械制造股份有限公司 A kind of automatic pole clamping fixture for correcting
CN110270608A (en) * 2019-06-25 2019-09-24 中交一公局集团有限公司 A kind of equipment of rectifiable oblique angle T beam flange plate welding deformation
CN111266432A (en) * 2020-03-18 2020-06-12 四川双鑫电气股份有限公司 Shape and position processing device after drawing of ventilation channel steel of large-scale generator
CN111266432B (en) * 2020-03-18 2021-04-20 四川双鑫电气股份有限公司 Shape and position processing device after drawing of ventilation channel steel of large-scale generator

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