JP2008073751A - Method for measuring shape of metal plate, method for producing metal plate and shape measurement device for metal plate - Google Patents

Method for measuring shape of metal plate, method for producing metal plate and shape measurement device for metal plate Download PDF

Info

Publication number
JP2008073751A
JP2008073751A JP2006258625A JP2006258625A JP2008073751A JP 2008073751 A JP2008073751 A JP 2008073751A JP 2006258625 A JP2006258625 A JP 2006258625A JP 2006258625 A JP2006258625 A JP 2006258625A JP 2008073751 A JP2008073751 A JP 2008073751A
Authority
JP
Japan
Prior art keywords
metal plate
shape
line
measuring
apron
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
JP2006258625A
Other languages
Japanese (ja)
Inventor
Wataru Kamata
弥 鎌田
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.)
JFE Steel Corp
Original Assignee
JFE Steel Corp
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 JFE Steel Corp filed Critical JFE Steel Corp
Priority to JP2006258625A priority Critical patent/JP2008073751A/en
Publication of JP2008073751A publication Critical patent/JP2008073751A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Length Measuring Devices By Optical Means (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for measuring the shape of a metal plate where the problem that a metal plate sags between table rolls by gravity and its shape is not correctly measurable can be solved by a simple and inexpensive constitution, to provide a method for producing a metal plate, and to provide a shape measurement device for a metal plate. <P>SOLUTION: When the shape of a metal plate (steel plate 1) is measured in a line where the metal plate (1) is carried by table rolls 7, an apron 8 between the table rolls 7 is elevated to a pass line. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は帯鋼の精製ラインを主とする、テーブルロールにて金属板を搬送するラインにて、該金属板の形状を測定する方法、金属板の製造方法及び金属板の形状測定装置に関する。   The present invention relates to a method for measuring the shape of a metal plate, a method for manufacturing the metal plate, and a shape measuring device for the metal plate, mainly in a line for transporting the metal plate by a table roll, mainly a refining line for strip steel.

以下、図4に示す帯鋼のリコイリングラインの場合を例にとって、帯鋼の精製ラインを説明する。リコイリングラインとは、特許文献1に記載されている鋼板コイルの巻き戻し装置を設置したラインと同様のものであり、熱間圧延ラインにて圧延されたコイル状の鋼板1を巻出機2にて巻き戻し、検査員や表面検査装置による鋼板1の表面検査のほか、レベラー4による形状矯正や、トリマー5による鋼板端部の切断、あるいは、切断機6によるコイル長の変更、テーブルロール7上で形状の測定等を行い、巻取機3にてコイル状に巻き直すラインである。この他、図4に示すリコイリングラインに加え、更に溶接機を設置した、コイルビルドアップラインと呼ばれるラインのように、リコイリングラインに加え、2つのコイルを一つにつなげることのできるライン等もある。   In the following, the strip steel refining line will be described by taking the case of the strip steel recoiling line shown in FIG. 4 as an example. The recoiling line is the same as the line in which the steel sheet coil unwinding device described in Patent Document 1 is installed, and the coiled steel sheet 1 rolled in the hot rolling line is unwound. In addition to surface inspection of the steel plate 1 by an inspector or surface inspection device, shape correction by the leveler 4, cutting of the end of the steel plate by the trimmer 5, or change of the coil length by the cutting machine 6, table roll 7 This is a line for measuring the shape and the like and rewinding it into a coil shape by the winder 3. In addition to the recoiling line shown in FIG. 4, in addition to the recoiling line, such as a line called a coil build-up line with a welding machine installed, a line that can connect two coils into one, etc. There is also.

一般的に、鋼板1は、表面に疵を発生させないようにテーブルロール7にて搬送されるが、建設コストを低減するため、図5に示すように、テーブルロール7を500乃至1200mmの間隔で配置し、間にはエプロン8を設置する。エプロン8は搬送途中に鋼板を疵つけないように、鋼板1のパスラインよりも20乃至60mm低い高さに設置する。そのため、テーブルロール7上で鋼板1の形状を測定する場合には、図6に示すような鋼板1の自重による垂れの影響を受け、形状を正しく測定できないという問題があった。   In general, the steel sheet 1 is conveyed by the table roll 7 so as not to cause wrinkles on the surface. However, in order to reduce the construction cost, the table roll 7 is spaced at intervals of 500 to 1200 mm as shown in FIG. The apron 8 is installed between them. The apron 8 is installed at a height 20 to 60 mm lower than the pass line of the steel plate 1 so that the steel plate is not damaged during the conveyance. Therefore, when measuring the shape of the steel plate 1 on the table roll 7, there is a problem that the shape cannot be measured correctly due to the influence of drooping due to the weight of the steel plate 1 as shown in FIG.

ちなみに、鋼板1の形状とは、図7(a)に示す平坦なもののほか、図7(b)に示す鋼板1の幅端部が局部的に伸びている耳伸びと称されるものや、図7(c)に示す鋼板1の幅中央部が局部的に伸びている腹伸びと称される種類のものがある。   Incidentally, the shape of the steel plate 1 is not only the flat shape shown in FIG. 7 (a), but also what is called an ear extension in which the width end portion of the steel plate 1 shown in FIG. 7 (b) is locally extended, There is a type called belly stretch in which the central portion of the width of the steel plate 1 shown in FIG.

特許文献2には、熱間圧延ラインのような、鋼板が300乃至1600mpmもの高速で搬送されるラインにて、テーブルロール間に設置されたエプロンを上昇させて鋼板の先端通板性を向上させるとともに、同先端が通過するとき以外はエプロンを下降させることで、熱によるエプロンの耐久性も確保することが記載されている。   In Patent Document 2, the apron installed between the table rolls is raised in a line where the steel sheet is conveyed at a high speed of 300 to 1600 mpm, such as a hot rolling line, to improve the end plateability of the steel sheet. At the same time, it is described that the apron is lowered by heat, and the durability of the apron by heat is ensured except when the tip passes.

特許第3650790号公報Japanese Patent No. 3650790 特開2004−351483号公報JP 2004-351383 A

しかしながら、特許文献2に記載のような技術では、鋼板の先端が通過した後は、エプロンが下降してしまうため、テーブルロール7間で鋼板1が図6に示したように自重により垂れてしまう結果、鋼板1の形状を正しく測定できないという問題を依然として解決できないままであった。   However, in the technique as described in Patent Document 2, since the apron descends after the front end of the steel plate passes, the steel plate 1 hangs down due to its own weight between the table rolls 7 as shown in FIG. As a result, the problem that the shape of the steel sheet 1 cannot be measured correctly still cannot be solved.

このほか、特許文献1に記載の先述の鋼板コイルの巻き戻し装置を設置したようなラインや、図4に示したリコイリングラインのようなライン等では、エプロンを昇降させる発想はなかった。   In addition, there was no idea of raising and lowering the apron in a line in which the above-described steel coil rewinding device described in Patent Document 1 was installed, a line such as the recoiling line shown in FIG.

本発明は、従来技術のかかる問題を解決するためになされたものであり、テーブルロール間で金属板が自重により垂れてしまって、形状を正しく測定できないという問題を、簡単で安価な仕組により解決できる、金属板の形状測定方法及び装置を提供することを目的とする。   The present invention has been made to solve such problems of the prior art, and solves the problem that the metal plate hangs down between the table rolls due to its own weight and the shape cannot be measured correctly by a simple and inexpensive mechanism. An object of the present invention is to provide a metal plate shape measuring method and apparatus.

斯かる目的を達成するための本発明は、以下の通りである。   The present invention for achieving such an object is as follows.

(1)金属板をテーブルロールにて搬送するラインにて、該金属板の形状を測定する際に、テーブルロール間のエプロンをパスラインまで上昇させることを特徴とする金属板の形状測定方法。   (1) A method for measuring the shape of a metal plate, wherein the apron between the table rolls is raised to a pass line when the shape of the metal plate is measured on a line that conveys the metal plate with a table roll.

(2)金属板の製造に際して、金属板をテーブルロールにて搬送するラインで、該金属板の形状を測定する際に、テーブルロール間のエプロンをパスラインまで上昇させることを特徴とする金属板の製造方法。   (2) A metal plate characterized by raising an apron between table rolls up to a pass line when measuring the shape of the metal plate in a line for transporting the metal plate by a table roll during manufacture of the metal plate. Manufacturing method.

(3)金属板をテーブルロールにて搬送するラインにて、該金属板の形状を測定する際に、テーブルロール間のエプロンをパスラインまで上昇させる手段を備えたことを特徴とする金属板の形状測定装置。   (3) When measuring the shape of the metal plate in a line for conveying the metal plate by the table roll, the metal plate is provided with means for raising the apron between the table rolls to the pass line. Shape measuring device.

本発明により、テーブルロール間で金属板が自重により垂れてしまって、形状を正しく測定できないという問題を、簡単で安価な仕組により解決できた。そして、本発明により、金属板の形状を測定することにより、測定時の誤差を大幅に低減できるようになった。   According to the present invention, the problem that the metal plate hangs down between the table rolls due to its own weight and the shape cannot be measured correctly has been solved by a simple and inexpensive mechanism. And according to this invention, the error at the time of a measurement can be reduced significantly by measuring the shape of a metal plate.

以下、本発明の実施の形態の一例を、図を参照して説明する。   Hereinafter, an example of an embodiment of the present invention will be described with reference to the drawings.

図1は、本発明の実施の形態の一例に係る、金属板の形状測定装置の概略図である。   FIG. 1 is a schematic diagram of a metal plate shape measuring apparatus according to an example of an embodiment of the present invention.

本発明の金属板の形状測定装置100は、図1(a)に示すごとく、テーブルロール7、エプロン8の従来の配置を踏襲しつつ、エプロン8を昇降させるためのシリンダ9を配置したものである。   As shown in FIG. 1A, the metal plate shape measuring apparatus 100 according to the present invention is provided with a cylinder 9 for raising and lowering the apron 8 while following the conventional arrangement of the table roll 7 and the apron 8. is there.

また、テーブルロール7間上方には、レーザー測距などの原理による形状測定装置10が設置されている。これにより、鋼板1の形状を測定することができる。   Further, a shape measuring apparatus 10 based on a principle such as laser ranging is installed above the table rolls 7. Thereby, the shape of the steel plate 1 can be measured.

鋼板1の形状は、図2に示すごとく、鋼板1を側面図的に見た場合に波打って見える波の高さhを波長Dで割った値に100を乗じた値λすなわち、
λ=(h/D)×100 (%) …(1)
にて表される。
As shown in FIG. 2, the shape of the steel plate 1 is a value λ obtained by multiplying a value obtained by dividing the height h of a wave that appears undulating when the steel plate 1 is viewed in a side view by a wavelength D, that is, λ,
λ = (h / D) × 100 (%) (1)
It is represented by

このような測定原理からしてわかる通り、レーザー測距などの原理による形状測定装置10が固定して設置されている場合は、図1中の搬送方向に搬送中の鋼板1を測定対象とすることができ、もしも形状測定装置10の方を図1中の搬送方向あるいはその逆の方向に移動式とした場合は、搬送停止中の鋼板1も測定対象とすることができる。   As can be seen from such a measurement principle, when the shape measuring device 10 based on a principle such as laser distance measurement is fixedly installed, the steel plate 1 being conveyed in the conveyance direction in FIG. If the shape measuring device 10 is movable in the direction of conveyance in FIG. 1 or vice versa, the steel plate 1 during conveyance stop can also be measured.

図1の例では、鋼板1を対象とするが、鋼板に限らず、あらゆる材質の金属板を対象とすることができる。   In the example of FIG. 1, the steel plate 1 is an object, but not only a steel plate but also a metal plate of any material can be an object.

エプロン8を昇降させるための機構は、例えば、シリンダ9を例に取れば、油圧でも空気圧でもよいし、あるいは、シリンダ9に代えて、電動式のスクリュージャッキ等を用いてもよい。   For example, if the cylinder 9 is taken as an example, the mechanism for raising and lowering the apron 8 may be hydraulic or pneumatic. Alternatively, an electric screw jack or the like may be used instead of the cylinder 9.

また、形状測定装置10は、レーザー測距式の原理によるものでなく、その他の形式や原理によるものであってもよいし、設置位置も、必ずしもテーブルロール7間上方でなくても、テーブルロール7の直上であってもよい。   Further, the shape measuring device 10 is not based on the principle of the laser distance measuring method, but may be based on other types or principles, and the installation position is not necessarily located between the table rolls 7. It may be directly above 7.

以上のように、図1の例は、あくまで本発明の実施の形態の一例であって、本発明は、この実施の形態に限るものではない。   As described above, the example of FIG. 1 is merely an example of an embodiment of the present invention, and the present invention is not limited to this embodiment.

本発明の作用と考え方を、以下に述べる。   The operation and concept of the present invention will be described below.

図1(a)に鋼板1の搬送時の配置を示す。鋼板1とテーブルロール7、エプロン8の位置関係は従来と変わらないため、鋼板1を疵つけることなく搬送可能である。次に、図1(b)に形状測定時の配置を示す。シリンダ9にてエプロン8をテーブルロール7の頂点、すなわち、パスラインと同じ高さまで上昇させ、鋼板の形状を測定する。仮に、テーブルロール7の頂点とエプロン8の間の距離を、テーブルロール7の頂点間の距離の10分の1にしたとすると、鋼板1の自重による垂れ量yは次式で示されるため、10000分の1に大幅に低減できる。   FIG. 1A shows the arrangement of the steel plate 1 during conveyance. Since the positional relationship between the steel plate 1, the table roll 7, and the apron 8 is not different from the conventional one, the steel plate 1 can be transported without scuffing. Next, FIG.1 (b) shows the arrangement | positioning at the time of shape measurement. The apron 8 is raised to the apex of the table roll 7, that is, the same height as the pass line by the cylinder 9, and the shape of the steel plate is measured. If the distance between the apex 8 of the table roll 7 and the apron 8 is set to 1/10 of the distance between the apexes of the table roll 7, the amount of sag y due to the weight of the steel sheet 1 is expressed by the following equation: It can be greatly reduced to 1 / 10,000.

y=5ρL4/(32×104Et2) …(2) y = 5ρL 4 / (32 × 10 4 Et 2 ) (2)

ここで、ρは鋼板1の密度、Lは支持間距離、Eは鋼板1のヤング率、tは鋼板1の板厚である。   Here, ρ is the density of the steel plate 1, L is the distance between supports, E is the Young's modulus of the steel plate 1, and t is the plate thickness of the steel plate 1.

鋼板の場合、ρ=7850kg/m3、E=205800MPaであるから、板厚t=1.0mmとすると、本発明を適用した場合は支持間距離L=50mmのときに垂れ量y=0.00036mmとなる。形状測定時に必要な精度は±0.5mm程度であるから、自重の垂れによる影響なく形状を測定できることが分かる。 In the case of a steel plate, ρ = 7850 kg / m 3 and E = 205800 MPa. Therefore, assuming that the plate thickness t = 1.0 mm, when the present invention is applied, the sag amount y = 0.00036 mm when the distance L between supports is 50 mm. Become. Since the accuracy required at the time of shape measurement is about ± 0.5 mm, it can be seen that the shape can be measured without the influence of drooping of its own weight.

以下、本発明の実施例を説明する。図3は、本発明を適用した場合(実施例)とそうでない場合(比較例)に、鋼板1の形状を図1に示したリコイリングライン内で測定した値を定盤上で測定した値と比較した図である。   Examples of the present invention will be described below. FIG. 3 shows values obtained by measuring on the surface plate the values obtained by measuring the shape of the steel sheet 1 in the recoiling line shown in FIG. 1 when the present invention is applied (Example) and when not (Comparative Example). It is the figure compared with.

定盤上で測定した値を正とすると、比較例は、定盤上で測定した場合の値と比べ、乖離が大きいのに対し、実施例では、乖離が小さく、測定精度が大幅に改善できているのが分かる。   If the value measured on the surface plate is positive, the comparative example has a larger divergence than the value measured on the surface plate, whereas the divergence is smaller in the example and the measurement accuracy can be greatly improved. I understand that.

なお、前記説明では、帯鋼のリコイリングラインを例にとって、本発明を説明したが、本発明の適用対象は、これに限定されず、形状測定が必要な金属板のライン一般に適用できる。   In the above description, the present invention has been described by taking the steel strip recoiling line as an example. However, the application target of the present invention is not limited to this, and the present invention can be applied to a metal plate line that requires shape measurement.

本発明の実施の形態の一例を示す正面図The front view which shows an example of embodiment of this invention 金属板の形状の測定の仕方について説明するための拡大正面図Enlarged front view for explaining how to measure the shape of a metal plate 本発明の効果を示す線図Diagram showing the effect of the present invention 本発明の適用対象の一例であるリコイリングラインの概要について説明するための正面図The front view for demonstrating the outline | summary of the recoiling line which is an example of the application object of this invention 従来技術について説明するための拡大正面図Enlarged front view for explaining the prior art 従来技術の問題について説明するための拡大正面図Enlarged front view for explaining the problems of the prior art 金属板の形状について説明するための斜視図The perspective view for demonstrating the shape of a metal plate

符号の説明Explanation of symbols

1…鋼板
2…巻出機
3…巻取機
4…レベラー
5…トリマー
6…切断機
7…テーブルロール
8…エプロン
9…シリンダ
10…レーザー測距形状測定装置
100…形状測定装置
DESCRIPTION OF SYMBOLS 1 ... Steel plate 2 ... Unwinding machine 3 ... Winding machine 4 ... Leveler 5 ... Trimmer 6 ... Cutting machine 7 ... Table roll 8 ... Apron 9 ... Cylinder 10 ... Laser ranging shape measuring device 100 ... Shape measuring device

Claims (3)

金属板をテーブルロールにて搬送するラインにて、該金属板の形状を測定する際に、
テーブルロール間のエプロンをパスラインまで上昇させることを特徴とする金属板の形状測定方法。
When measuring the shape of the metal plate in a line that conveys the metal plate with a table roll,
A method for measuring the shape of a metal plate, wherein the apron between table rolls is raised to a pass line.
金属板の製造に際して、金属板をテーブルロールにて搬送するラインで、該金属板の形状を測定する際に、
テーブルロール間のエプロンをパスラインまで上昇させることを特徴とする金属板の製造方法。
When manufacturing the metal plate, when measuring the shape of the metal plate in a line that conveys the metal plate with a table roll,
A method of manufacturing a metal plate, characterized by raising an apron between table rolls to a pass line.
金属板をテーブルロールにて搬送するラインにて、該金属板の形状を測定する際に、
テーブルロール間のエプロンをパスラインまで上昇させる手段を備えたことを特徴とする金属板の形状測定装置。
When measuring the shape of the metal plate in a line that conveys the metal plate with a table roll,
An apparatus for measuring a shape of a metal plate, comprising means for raising an apron between table rolls to a pass line.
JP2006258625A 2006-09-25 2006-09-25 Method for measuring shape of metal plate, method for producing metal plate and shape measurement device for metal plate Pending JP2008073751A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006258625A JP2008073751A (en) 2006-09-25 2006-09-25 Method for measuring shape of metal plate, method for producing metal plate and shape measurement device for metal plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006258625A JP2008073751A (en) 2006-09-25 2006-09-25 Method for measuring shape of metal plate, method for producing metal plate and shape measurement device for metal plate

Publications (1)

Publication Number Publication Date
JP2008073751A true JP2008073751A (en) 2008-04-03

Family

ID=39346347

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006258625A Pending JP2008073751A (en) 2006-09-25 2006-09-25 Method for measuring shape of metal plate, method for producing metal plate and shape measurement device for metal plate

Country Status (1)

Country Link
JP (1) JP2008073751A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101353832B1 (en) 2011-11-23 2014-01-22 주식회사 포스코 Apron apparatus
KR101477105B1 (en) * 2013-11-27 2014-12-29 현대제철 주식회사 Strip measuring apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101353832B1 (en) 2011-11-23 2014-01-22 주식회사 포스코 Apron apparatus
KR101477105B1 (en) * 2013-11-27 2014-12-29 현대제철 주식회사 Strip measuring apparatus

Similar Documents

Publication Publication Date Title
JP5991071B2 (en) Coil width direction alignment method and apparatus
JP2008073751A (en) Method for measuring shape of metal plate, method for producing metal plate and shape measurement device for metal plate
JP6036659B2 (en) Roll opening control method in continuous casting machine
JP2006263779A (en) Side guide control method for hot rolling apparatus
US20060097023A1 (en) Slide adjustable assembly for monitoring widthwise travel of an uncoiling steel band through a feeder system associated with a progressive die
JP4907467B2 (en) Grinding method of slab, slab for hot rolling, and manufacturing method of steel plate using them
JP7225880B2 (en) Method for manufacturing hot-rolled coil
JP6269536B2 (en) Rolling mill control method, rolling mill control apparatus, and steel plate manufacturing method
CN110745613A (en) Deviation correcting device of production is rolled up to aluminium
JP6992340B2 (en) Web slack measurement mechanism and web transfer device equipped with it
JP2011050991A (en) Equipment for shearing plate, method of controlling meandering of steel plate and method of preventing meandering of steel plate
JP5780118B2 (en) Winding control method and device for hot rolled steel strip
KR100775496B1 (en) Top part pressing apparatus of strip
JP2009214164A (en) Method of predicting deformation resistance of metal strip and method of setting up cold tandem mill
KR101316646B1 (en) Portable apparatus for measuring surface of roll fortransferring cold rolled steel sheet
JP4830887B2 (en) Hot rolling equipment
JP5376330B2 (en) Hot rolled sheet shape control method, manufacturing method, and manufacturing apparatus
JP3677665B2 (en) Measuring device for unevenness of mirror surface of take-up roll
JP6032223B2 (en) Coil winding shape pass / fail judgment method and apparatus
JP6787832B2 (en) Manufacturing method of strip metal material
JP2011147997A (en) Device for preventing meandering of slit band plate
KR20090056142A (en) Pinch roll structure
JP2013003117A (en) Thickness measuring method of sheet-like material, and conveyance device of sheet-like material
JP2010042431A (en) Device for guiding strip of steckel mill equipment
JP2015120194A (en) Scale removal device in electric resistance welded steel pipe production line