JPS5975110A - Measuring method of hot scarf scarfing margin - Google Patents

Measuring method of hot scarf scarfing margin

Info

Publication number
JPS5975110A
JPS5975110A JP18647082A JP18647082A JPS5975110A JP S5975110 A JPS5975110 A JP S5975110A JP 18647082 A JP18647082 A JP 18647082A JP 18647082 A JP18647082 A JP 18647082A JP S5975110 A JPS5975110 A JP S5975110A
Authority
JP
Japan
Prior art keywords
steel material
detectors
distance
hot scarf
scarf device
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
Application number
JP18647082A
Other languages
Japanese (ja)
Inventor
Tomiichi Yagi
八木　富一
Mitsuaki Utsuno
宇津野　光朗
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daido Steel Co Ltd
Original Assignee
Daido Steel Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Daido Steel Co Ltd filed Critical Daido Steel Co Ltd
Priority to JP18647082A priority Critical patent/JPS5975110A/en
Publication of JPS5975110A publication Critical patent/JPS5975110A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/14—Measuring arrangements characterised by the use of optical techniques for measuring distance or clearance between spaced objects or spaced apertures
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
    • G01B11/026—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness by measuring distance between sensor and object

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)

Abstract

PURPOSE:To measure a scarfing margin on online mode by providing distance detectors, which measure the distances to both surfaces of a steel material without contacting, in such a way that a steel material is placed between said detectors and the detectors are placed in both side positions of the steel material in front of and behind a hot scarf device. CONSTITUTION:Optical distance detectors 3 and 4 are pvovided on both side positions of the steel material 2 in front of the hot scarf device 1 with the steel material 2 between. The detectors 3 and 4 photodetect reflected light of a laser beam by phototelectric converting elements to measuring the distance to both surfaces of the steel material 2 precisely without contacting. Further, distance detectors 5 and 6 are provided on both side positions of the steel material 2 behind the device 1 with the steel material 2 between. The detectors 3 and 5 are fixed on one mount plate 7 and the detectors 4 and 6 are fixed on the other mount plate 8. The interval between both mount plates 7 and 8 is variable according to the width of the steel plate 2.

Description

【発明の詳細な説明】 本発明はホットスカーフ装置を通過したことによる鋼材
の溶削代を正確に測定せんとする方法に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for accurately measuring the cutting stock of steel material after passing through a hot scarf device.

加熱状態にある鋼材の表面に酸素を吹付は該鋼材の表面
層を溶剤することにより表面疵を消失させるホットスカ
ーフ装置において、従来その溶削代を知るに際しては、
単位長さの鋼材の溶剤前の重量と溶剤後の重量とを測定
しその重量減少分から溶削代を算出するものであった。Conventionally, when determining the machining allowance of a hot scarf device, which sprays oxygen onto the surface of a heated steel material and removes surface flaws by treating the surface layer of the steel material with a solvent,
The weight before and after the solvent of a unit length of steel material was measured, and the cutting stock was calculated from the weight reduction.

このためオンラインによる測定ができないと共に、溶削
代の変動要因には、鋼材の材質、移動速度、温度および
酸素の吹付速度等が複雑に関連するので品質管理上速く
て正確な測定を必要とするにも拘らず従来方法ではそれ
に応じられないものであった。For this reason, online measurement is not possible, and the factors that vary the cutting stock are complicatedly related to the steel material, moving speed, temperature, oxygen spray speed, etc., so fast and accurate measurements are required for quality control purposes. However, conventional methods have not been able to meet this requirement.

本発明は上記欠点を解消せんとするもので、加熱状態の
鋼材を定速度でホットスカーフ装置に送り該鋼材の表面
に酸素を吹付けることにより該鋼材の表面を溶剤するも
のにおいて、ホットスカーフ装置通過前の鋼材の側傍位
置とホットスカーフ装置通過後の鋼材の側傍位置に夫々
鋼材を挾むようにして鋼材の両表面までの距離を非接触
的に測定する距離検出器を設置し、その前部検出器の測
定信号から溶剤前の鋼材の断面寸法を演算し、その測定
個所がホットスカーフ装置を通過し得る所定時間後に後
部検出器の測定信号からその測定個所の溶剤後の断面寸
法を演算し、その両断間寸法の差により溶削代がオンラ
インで正確に測定できるようにしたものである。The present invention aims to solve the above-mentioned drawbacks, and includes a hot scarf device in which a heated steel material is sent to a hot scarf device at a constant speed, and the surface of the steel material is sprayed with oxygen to form a solvent. Distance detectors that measure the distance to both surfaces of the steel material in a non-contact manner by sandwiching the steel material are installed at the side of the steel material before it passes through the hot scarf device, and at the side of the steel material after it passes through the hot scarf device. The cross-sectional dimension of the steel material before the solvent is calculated from the measurement signal of the detector, and after a predetermined time when the measurement point can pass through the hot scarf device, the cross-sectional dimension of the measurement point after the solvent is calculated from the measurement signal of the rear detector. , the machining allowance can be accurately measured online based on the difference in the dimension between the two gaps.

以下に本発明の一実施例を説明する。第１図において、
１はホットスカーフ装置、２は該ホットスカーフ装置へ
矢印の方向に定速度■で送られている加熱状態の鋼材を
示す、ホットスカーフ装置１通過前の鋼材２の両脇位ｔ
に該鋼材２を挾むようにして光学式の距離検出器３．４
を設ける。該距＃検出器３．４はレーザ光線の反射光を
光市変換票子により受光し鋼材２の両表面までの距離を
非接触にて高精度で測定できるものである。また、ホッ
トスカーフ装置１通過後の鋼材２の両脇位置に該鋼材２
を挾むようにして同様の距離検出器５．６を設ける。前
記距離検出器３と５は一枚の巣板７上に固設され、距離
検出器４と６は他側の巣板８上に固設され、両粱板７．
８の間隔は鋼材２の幅に合わせて可変できるようにして
いる。第２図は上記距離検出器３〜６の信号処理系を示
したブロック線図で、距離検出器３．４に継がれている
幅演算器９は、面距離検出器３．４の間隔Ｗから面距離
検出器３，４が測定した鋼材２表面までの距離Ｗ１．　
Ｗ、を差し引くことで溶剤前の鋼材２の幅寸法を演算す
る。また、距離検出器５．６に継がれている幅演算器１
０は面距離検出器５．６の間隔Ｗから面距離検出器６．
６が測定した鋼材２表面までの距離Ｗｓ、　Ｗ４を差し
引くことで溶剤後の鋼材２の幅寸法を演算する。前記幅
演算器９の次段に接続されたシフトレジスタＵは溶剤前
の鋼材２の幅寸法測定信号を記憶する。１２は鋼材２の
移動速度検出器、塾はその検出速度に従いシフトレジス
タＨに記憶された幅寸法測定信号を減算器１４へ出力す
る遅延後信号取出器で、その遅延時間はいま距離検出器
８．４と距離検出器５．６の間隔なＬとし鋼材２の移動
速度なＶとするとし〜に設定する。このため距離検出器
３．４によって測定された溶剤前の鋼材の該測定個所が
ホットスカーフ装置１を通過して所定時間後トこ距離検
出器５．６に至った時点でその測定個所の溶剤前と溶剤
後を比較できその差を減算器１４によって算出できる。An embodiment of the present invention will be described below. In Figure 1,
1 is a hot scarf device; 2 is a heated steel material being sent to the hot scarf device at a constant speed in the direction of the arrow; positions t on both sides of the steel material 2 before passing through the hot scarf device 1;
An optical distance detector 3.4 is placed between the steel material 2 and the optical distance detector 3.4.
will be established. The distance # detector 3.4 is capable of measuring the distance to both surfaces of the steel material 2 with high accuracy in a non-contact manner by receiving the reflected light of the laser beam using a light conversion plate. In addition, the steel material 2 is placed on both sides of the steel material 2 after passing through the hot scarf device 1.
A similar distance detector 5.6 is provided between the two. The distance detectors 3 and 5 are fixed on one nest board 7, the distance detectors 4 and 6 are fixed on the other nest board 8, and the distance detectors 3 and 5 are fixed on the nest board 8 on the other side.
The interval between 8 and 8 can be changed according to the width of the steel material 2. FIG. 2 is a block diagram showing the signal processing system of the distance detectors 3 to 6, in which the width calculator 9 connected to the distance detector 3.4 is connected to the distance W between the surface distance detectors 3.4. Distance W1. to the surface of the steel material 2 measured by the surface distance detectors 3 and 4.
By subtracting W, the width dimension of the steel material 2 before the solvent is calculated. Also, the width calculator 1 connected to the distance detector 5.6
0 is the distance W from the surface distance detector 5.6 to the surface distance detector 6.
The width dimension of the steel material 2 after solvent is calculated by subtracting the distance Ws and W4 to the surface of the steel material 2 measured by 6. A shift register U connected to the next stage of the width calculating unit 9 stores the width measurement signal of the steel material 2 before the solvent is applied. 12 is a moving speed detector of the steel material 2, and 12 is a delayed signal extractor that outputs the width dimension measurement signal stored in the shift register H to the subtracter 14 according to the detected speed, and the delay time is now detected by the distance detector 8. Let L be the distance between the distance detector 5.4 and the distance detector 5.6, and V be the moving speed of the steel material 2. Therefore, when the measurement point of the steel material before the solvent measured by the distance detector 3.4 passes through the hot scarf device 1 and reaches the distance detector 5.6 after a predetermined time, the solvent at the measurement point is removed. The before and after solvent can be compared and the difference can be calculated by the subtractor 14.

なお距離検出器３〜６はこれを鋼材２の進行方向と直交
する方向に測定点を走査することにより溶削代の部分的
変位を検知することも可能となる。Note that the distance detectors 3 to 6 can also detect partial displacement of the cutting stock by scanning measurement points in a direction perpendicular to the traveling direction of the steel material 2.

このように本発明は鋼材の同じ測定個所を溶剤前と溶剤
後に測定するので、溶削代が正確にしかもオンラインで
測定でき、このためホットスカーフ装置における溶削代
の制御等に多大の効果をもたらし鋼材の品質向上に寄与
できる。In this way, the present invention measures the same measurement point on the steel material before and after using the solvent, so the cutting stock can be measured accurately and online, which has a great effect on controlling the cutting stock in the hot scarf device. This can contribute to improving the quality of steel materials.

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本発明の一実施例を示したもので、第１図は距離
検出器等の設置を概略的に示した平面図。 第一図は信号処理系を示したブロック線図である。 １・・・・ホットスカーフ装置、２・・・・鋼材、３゜
４．５．６・・・・距離検出器、　９　、．１０・・・
・幅演算器。 １１・・・・シフトレジスタ、１４・・・・減算器。 第１図The drawings show an embodiment of the present invention, and FIG. 1 is a plan view schematically showing the installation of a distance detector, etc. FIG. 1 is a block diagram showing the signal processing system. 1...Hot scarf device, 2...Steel material, 3゜4.5.6...Distance detector, 9. 10...
・Width calculator. 11...Shift register, 14...Subtractor. Figure 1

Claims (1)

【特許請求の範囲】[Claims] 加熱状態の鋼材をホットスカーフ装置に送り該鋼材の表
面に酸素を吹付けることにより該鋼材の表面を溶剤する
ものにおいて、ホットスカーフ装置通過前の鋼材の側傍
位置とホットスカーフ装置通過後の鋼材の側傍位置に夫
々鋼材を挾むようにして鋼材の両表面までの距離を非接
触的に測定する距離検出器（以下前部検出器および後部
検出器という。）を設置し、前部検出器の測定信号から
溶剤前の鋼材の断面寸法を演算し、その測定個所がホッ
トスカーフ装置を通過し得る所定時間後に後部検出器の
測定信号からその測定個所の溶剤後の断面寸法を演算し
、その側断面寸法の差を演算することを特徴としたホッ
トスカーフ溶削代測定方法。In a method in which a heated steel material is sent to a hot scarf device and the surface of the steel material is sprayed with oxygen to make the surface of the steel material a solvent, the side position of the steel material before passing through the hot scarf device and the steel material after passing through the hot scarf device Distance detectors (hereinafter referred to as front detector and rear detector) that non-contactly measure the distance to both surfaces of the steel material by sandwiching the steel material are installed at the side positions of the front detector. The cross-sectional dimension of the steel material before the solvent is calculated from the signal, and after a predetermined time when the measured point can pass through the hot scarf device, the cross-sectional dimension of the measured point after the solvent is calculated from the measurement signal of the rear detector, and the side cross-sectional dimension is calculated from the measurement signal of the rear detector. A hot scarf cutting allowance measurement method characterized by calculating the difference in dimensions.
JP18647082A 1982-10-22 1982-10-22 Measuring method of hot scarf scarfing margin Pending JPS5975110A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18647082A JPS5975110A (en) 1982-10-22 1982-10-22 Measuring method of hot scarf scarfing margin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18647082A JPS5975110A (en) 1982-10-22 1982-10-22 Measuring method of hot scarf scarfing margin

Publications (1)

Publication Number Publication Date
JPS5975110A true JPS5975110A (en) 1984-04-27

Family

ID=16189031

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18647082A Pending JPS5975110A (en) 1982-10-22 1982-10-22 Measuring method of hot scarf scarfing margin

Country Status (1)

Country Link
JP (1) JPS5975110A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02207968A (en) * 1989-02-08 1990-08-17 Sumitomo Metal Ind Ltd Method for controlling scarfing quantity
EP0481496A2 (en) * 1990-10-19 1992-04-22 Kawasaki Steel Corporation Process and apparatus for measuring sizes of steel sections

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02207968A (en) * 1989-02-08 1990-08-17 Sumitomo Metal Ind Ltd Method for controlling scarfing quantity
EP0481496A2 (en) * 1990-10-19 1992-04-22 Kawasaki Steel Corporation Process and apparatus for measuring sizes of steel sections

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