JP2009045640A - Method of winding steel wire rod - Google Patents

Method of winding steel wire rod Download PDF

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JP2009045640A
JP2009045640A JP2007212870A JP2007212870A JP2009045640A JP 2009045640 A JP2009045640 A JP 2009045640A JP 2007212870 A JP2007212870 A JP 2007212870A JP 2007212870 A JP2007212870 A JP 2007212870A JP 2009045640 A JP2009045640 A JP 2009045640A
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speed
wire
winding
rolling mill
strip
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JP5085226B2 (en
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Shoji Miyazaki
庄司 宮崎
Takeshi Ishida
健 石田
Koji Nakada
浩司 中田
Masahiro Dono
正弘 堂野
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Kobe Steel Ltd
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Kobe Steel Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To stably uniform a winding shape. <P>SOLUTION: In a method of winding a steel wire rod for winding the steel wire rod 3 rolled with a finishing mill 6 with a winding reel 8 arranged on the downstream side of the finishing mill 6, before the steel wire rod 3 passes through the finishing mill 6, the winding speed V2 of the winding reel 8 is controlled on the basis of the rolling speed of the finishing mill 6 and, after the steel wire rod 3 passes through the finishing mill 6, the winding speed V2 of the winding reel 8 is controlled on the basis of the wire speed of the steel wire rod 3. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、条鋼線材の巻き取り方法に関する。   The present invention relates to a method for winding a strip steel wire.

従来より、圧延材を連続圧延して条鋼線材を製造する条鋼線材の圧延方法においては、加熱炉にて加熱した圧延材を、粗圧延機、中間圧延機、仕上げ圧延機の順に圧延を行った後に、仕上げ圧延機の下流側に配置されている巻き取り機によってリング状に巻回するようになっている。
条鋼線材を巻き取り機によって巻き取る際に、巻き取り速度を制御するものとして特許文献１に示すものがある。この特許文献１の条鋼線材の圧延方法では、仕上げ圧延機での圧延速度と巻き取り機での巻き取り速度との比であるリード率を用いて、巻き取り機の巻き取り速度を制御することで、条鋼線材の巻取り形状（リングの形状）が均一になるようにしている。
特開２００５−３４９０９号公報 Conventionally, in the rolling method of the strip wire that produces the strip wire by continuously rolling the rolled material, the rolled material heated in a heating furnace was rolled in the order of a rough rolling mill, an intermediate rolling mill, and a finish rolling mill. Later, it is wound in a ring shape by a winder disposed on the downstream side of the finish rolling mill.
Japanese Patent Application Laid-Open No. H11-228688 discloses a method for controlling a winding speed when winding a strip steel wire with a winder. In the rolling method of the steel strip of Patent Document 1, the winding rate of the winder is controlled by using the lead rate that is the ratio of the rolling speed in the finish rolling mill and the winding speed in the winder. Thus, the winding shape (ring shape) of the strip steel wire is made uniform.
JP 2005-34909 A

しかしながら、特許文献１の条鋼線材の圧延方法を用いて、巻き取り機の巻き取り速度を制御した場合、条鋼線材の巻取り形状が均一になることがあるものの、線速が大きく変化するなど非定常状態の時には、条鋼線材の巻取り形状が不安定になることがあり、確実に均一となる状況までには至っていないのが実情である。
そこで、本発明は、上記問題点に鑑み、巻き取り形状を安定的に均一にすることができる条鋼線材の巻き取り方法を提供することを目的とする。 However, when the winding speed of the winding machine is controlled using the rolling method of the strip steel wire disclosed in Patent Document 1, the winding shape of the strip steel wire may become uniform, but the wire speed greatly changes. In the steady state, the winding shape of the strip wire may become unstable, and the situation is that the situation has not yet been made uniform.
Then, an object of this invention is to provide the winding method of the strip steel wire which can make winding shape stably uniform in view of the said problem.

前記目的を達成するため、本発明においては以下の技術的手段を講じた。
すなわち、本発明における課題解決のための技術的手段は、仕上げ圧延機で圧延した条鋼線材を前記仕上げ圧延機の下流側に配置された巻き取り機で巻き取る条鋼線材の巻き取り方法において、前記条鋼線材が仕上げ圧延機から抜ける前は、仕上げ圧延機の圧延速度に基づいて前記巻き取り機の巻き取り速度を制御し、前記条鋼線材が仕上げ圧延機から抜けた後は、条鋼線材の線速の実測値に基づいて前記巻き取り機の巻き取り速度を制御する点にある。 In order to achieve the above object, the present invention takes the following technical means.
That is, the technical means for solving the problems in the present invention is a method of winding a strip steel wire that is wound by a winder disposed downstream of the finish rolling mill. Before the strip wire is removed from the finish rolling mill, the winding speed of the winder is controlled based on the rolling speed of the finish rolling mill. After the strip wire is pulled out of the finish rolling mill, the wire speed of the strip steel wire is controlled. The winding speed of the winder is controlled based on the actual measurement value.

発明者は、巻き取り機で条鋼線材を巻き取った後の形状について様々な観点から検証を行った。従来のように、巻き取り機での巻き取り速度を、仕上げ圧延機の圧延速度と関連したリード率という形で表して当該リード率により巻き取り速度を制御することによって、巻き取り速度を仕上げ圧延機の圧延速度に応じたものにすることができ、その結果、条鋼線材の巻取り形状を均一にすることができるものと考えられる。
しかしながら、発明者が更に巻き取り後の形状について検証を行ったところ、リード率を用いて巻き取り速度を制御した場合、条鋼線材が仕上げ圧延機から抜けていない状態では形状を均一にするには有効であるが、条鋼線材が仕上げ圧延機から抜けた後は、形状は均一になり難いことが分かった。 The inventor verified the shape after winding the strip wire with a winder from various viewpoints. As in the past, the winding speed at the winding machine is expressed in the form of the lead rate related to the rolling speed of the finish rolling mill, and the winding speed is controlled by the lead rate to finish rolling the winding speed. It can be considered to correspond to the rolling speed of the machine, and as a result, the winding shape of the strip wire can be made uniform.
However, when the inventor further verified the shape after winding, when controlling the winding speed using the lead rate, in order to make the shape uniform in a state in which the bar wire does not come off the finish rolling mill Although effective, it has been found that the shape is difficult to become uniform after the strip wire is pulled out of the finish rolling mill.

即ち、条鋼線材が仕上げ圧延機から抜けた後は、条鋼線材の抜けた部分（尾端側）を拘束するものが無くなるために、条鋼線材の速度が変化し、その結果、巻き取り速度と線速との速度差によって、巻き取り形状が大になったり小になったりしている。
そこで、発明者は、条鋼線材が仕上げ圧延機から抜ける前は、仕上げ圧延機の圧延速度に基づいて巻き取り速度を制御し、条鋼線材が仕上げ圧延機から抜けた後は、条鋼線材の線速の実測値に基づいて巻き取り速度を制御することにし、これにより、条鋼線材が抜ける前と抜けた後との巻き取り形状を安定的に均一にすることにした。 That is, after the strip wire is pulled out of the finish rolling mill, there is no restriction on the portion (tail end side) from which the strip wire is pulled out, so the speed of the strip wire changes, and as a result, the winding speed and wire Depending on the speed difference from the speed, the winding shape becomes larger or smaller.
Therefore, the inventor controls the winding speed based on the rolling speed of the finish rolling machine before the strip steel wire comes out of the finish rolling mill, and after the strip steel wire comes out of the finish rolling mill, the wire speed of the strip steel wire rod. The winding speed was controlled on the basis of the actual measurement value, and thereby, the winding shape before and after the strip was pulled out was stably made uniform.

前記条鋼線材の仕上げ圧延機抜け後においては、当該条鋼線材の線速の実測値を測定し、所定時間に対する実測値の変化量に基づいて巻き取り機の巻き取り速度を制御することが好ましい。
前記条鋼線材が仕上げ圧延機から抜ける前に、仕上げ圧延機の圧延速度及び巻き取り機の巻き取り速度を、加速又は減速させることが好ましい。 It is preferable to measure an actual value of the wire speed of the strip wire after the finish rolling mill is removed from the strip and control the winding speed of the winder based on the amount of change in the actual value with respect to a predetermined time.
It is preferable to accelerate or decelerate the rolling speed of the finish rolling mill and the winding speed of the winder before the strip wire rod comes out of the finish rolling mill.

本発明によれば、巻き取り形状を安定的に均一にすることができる。   According to the present invention, the winding shape can be made uniform stably.

以下、図面に基づき、本発明の実施の形態を説明する。
図１は、条鋼線材の圧延装置の概要を示している。
この圧延装置１は、加熱炉２から移送された圧延材３を条鋼線材に圧延するもので、粗圧延機４、中間圧延機５、仕上げ圧延機（ブロックミル）６、ピンチロール７、巻き取り機（レイングヘッド）８と、これらを制御する制御装置９とを備えている。
加熱炉２の下流側には粗圧延機４が配置されており、粗圧延機４から下流側に向けて順に中間圧延機５、仕上げ圧延機６、ピンチロール７、巻き取り機８が配置されている。中間圧延機５と仕上げ圧延機６との間には、圧延材３（以降、条鋼線材と呼ぶことがある）の線速を測定する第１線速計１０が設けられており、仕上げ圧延機６と巻き取り機８との間には条鋼線材３の線速を測定する第２線速計１１が設けられている。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows an outline of a rolling device for strip steel wire.
This rolling device 1 is for rolling a rolled material 3 transferred from a heating furnace 2 into a strip wire, and comprises a rough rolling mill 4, an intermediate rolling mill 5, a finish rolling mill (block mill) 6, a pinch roll 7, a winding roll. A machine (laying head) 8 and a control device 9 for controlling them are provided.
A rough rolling mill 4 is disposed on the downstream side of the heating furnace 2, and an intermediate rolling mill 5, a finish rolling mill 6, a pinch roll 7, and a winder 8 are sequentially disposed from the rough rolling mill 4 toward the downstream side. ing. Between the intermediate rolling mill 5 and the finishing rolling mill 6, a first linear velocimeter 10 for measuring the drawing speed of the rolled material 3 (hereinafter sometimes referred to as a strip wire) is provided. 6 and the winder 8 are provided with a second wire speed meter 11 for measuring the wire speed of the strip steel wire 3.

第１線速計１０及び第２線速計１１は、レーザドップラー線速計である。このレーザドップラー線速計は、レーザ光のドップラー効果により条鋼線材３の速度を遠隔で計測するものであって、条鋼線材３にレーザー光を当て、反射光がドップラー効果により条鋼線材３の移動速度に比例した周波数変化を受け、この変化を入射光と反射光との光ビート信号として測定することで条鋼線材３の速度を計測するものである。
各圧延機４、５、６は、複数の圧延スタンド１２、１２を有している。各圧延スタンド１２は圧延ロール１３を有していて、当該圧延ロール１３は駆動モータ（図示略）により回転駆動するものである。 The first linear speedometer 10 and the second linear speedometer 11 are laser Doppler linear speedometers. This laser Doppler velocimeter measures the speed of the steel bar wire 3 remotely by the Doppler effect of laser light. The laser beam is applied to the steel bar wire 3 and the reflected light is moved by the Doppler effect. The velocity of the bar wire 3 is measured by receiving a frequency change proportional to the frequency and measuring this change as an optical beat signal of incident light and reflected light.
Each rolling mill 4, 5, 6 has a plurality of rolling stands 12, 12. Each rolling stand 12 has a rolling roll 13, and the rolling roll 13 is rotationally driven by a drive motor (not shown).

制御装置９は、例えば、圧延ロール１３の圧延荷重の制御、圧延ロール１３の周速（線速）の制御及び巻き取り機８の巻き取り速度の制御等を行うもので、例えば、プロセスコンピュータで構成されている。この制御装置９は、第１速度変更部１５と、第２速度変更部１６とを有している。
第１速度変更部１５は、条鋼線材３が仕上げ圧延機６から抜けた後に当該条鋼線材３が仕上げ圧延機６と巻き取り機８との間で停止しないように、予め条鋼線材３の大きさに応じて条鋼線材３の線速を変化させるものである。 The control device 9 performs, for example, control of the rolling load of the rolling roll 13, control of the peripheral speed (linear speed) of the rolling roll 13, control of the winding speed of the winder 8, etc. It is configured. The control device 9 includes a first speed changing unit 15 and a second speed changing unit 16.
The first speed changing unit 15 is configured in advance so that the bar steel wire 3 does not stop between the finish rolling mill 6 and the winder 8 after the bar steel wire 3 is removed from the finish rolling mill 6. The wire speed of the bar wire 3 is changed according to the above.

図２は、速度変化を示したものである。図２において、Ｖ１は、仕上げ圧延機６の圧延速度（最終圧延ロール１３ａの周速）を示したものであり、Ｖ２は、巻き取り機８の巻き取り速度を示したもので、Ｖ３は条鋼線材の線速を示したものである。
図２に示すように、具体的には、第１速度変更部１５は、条鋼線材３の径が１８ｍｍ以上で太径である場合、当該条鋼線材３の尾端側３ａが仕上げ圧延機６から抜けた後、当該条鋼線材３の自重等により減速する傾向があることから、仕上げ圧延機６から抜ける前（条鋼線材３が中間圧延機５を抜けた時点Ｐ１から）に、仕上げ圧延機６の最終圧延ロール１３ａの周速Ｖ１及び巻き取り機８の巻き取り速度Ｖ２を、例えば、徐々に６０％上昇させる。 FIG. 2 shows a change in speed. In FIG. 2, V1 indicates the rolling speed of the finish rolling mill 6 (peripheral speed of the final rolling roll 13a), V2 indicates the winding speed of the winder 8, and V3 is steel bar. It shows the wire speed of the wire.
As shown in FIG. 2, specifically, when the diameter of the steel bar wire 3 is 18 mm or more and a large diameter, the first speed changing unit 15 is configured such that the tail end side 3 a of the bar steel wire 3 is from the finish rolling mill 6. Since it tends to decelerate due to its own weight or the like of the strip steel wire 3 after being pulled out, before it is pulled out from the finish rolling mill 6 (from the point P1 when the strip steel wire 3 exits the intermediate rolling mill 5), the finish rolling mill 6 For example, the peripheral speed V1 of the final rolling roll 13a and the winding speed V2 of the winder 8 are gradually increased by 60%, for example.

このとき、第１速度変更部１５は、仕上げ圧延機６の最終圧延ロール１３ａの周速Ｖ１に対する巻き取り機８の巻き取り速度Ｖ２を示したリード率（Ｖ２＝γＶ１）に従って、当該巻き取り機８の巻き取り速度Ｖ２を上昇させる。また、第１速度変更部１５は、条鋼線材３が中間圧延機５を抜けた時点Ｐ１から条鋼線材３が仕上げ圧延機６から抜ける前の時点Ｐ２までの間、最終圧延ロール１３ａの周速Ｖ１及び巻き取り機８の巻き取り速度Ｖ２を上昇させる。
なお、第１速度変更部１５は、条鋼線材３の径が８ｍｍ未満で小径である場合は、仕上げ圧延機６から抜けた後に、張力による影響が無くなり加速する傾向があるため、中間圧延機５を条鋼線材３が抜けた後（Ｐ１後）に、仕上げ圧延機６の最終圧延ロール１３ａの周速Ｖ１及び巻き取り機８の巻き取り速度Ｖ２を下降させる。 At this time, the first speed changing unit 15 follows the lead rate (V2 = γV1) indicating the winding speed V2 of the winding machine 8 with respect to the peripheral speed V1 of the final rolling roll 13a of the finish rolling mill 6. The winding speed V2 of 8 is increased. In addition, the first speed changing unit 15 is configured so that the peripheral speed V1 of the final rolling roll 13a is from the time point P1 when the strip wire 3 is removed from the intermediate rolling mill 5 to the time point P2 before the strip wire 3 is removed from the finish rolling mill 6. And the winding speed V2 of the winder 8 is increased.
In addition, since the 1st speed change part 15 tends to accelerate after removing from the finish rolling mill 6 when the diameter of the strip wire 3 is less than 8 mm and having a small diameter, the intermediate rolling mill 5 Are removed (after P1), the peripheral speed V1 of the final rolling roll 13a of the finish rolling mill 6 and the winding speed V2 of the winder 8 are lowered.

また、条鋼線材３の径が太径でも小径でもない中間径（８ｍｍ以上１８ｍｍ未満）の場合、中間圧延機５を条鋼線材３が抜けた後（条鋼線材３が中間圧延機５を抜けてから仕上げ圧延機６から抜けるまでの間）については、仕上げ圧延機６の最終圧延ロール１３ａの周速Ｖ１及び巻き取り機８の巻き取り速度Ｖ２を第１速度変更部１５によって減速又は加速を行うことなく、圧延速度に応じて条鋼線材３を巻き取るようにしている。
制御装置９においては、条鋼線材３が中間圧延機５から抜けていない状態では、仕上げ圧延機６の最終圧延ロール１３ａの周速Ｖ１に応じて巻き取り機８の巻き取り速度Ｖ２を制御している。 Further, in the case where the diameter of the bar wire 3 is an intermediate diameter (8 mm or more and less than 18 mm) that is neither a large diameter nor a small diameter, after the bar wire 3 is pulled out from the intermediate rolling mill 5 (after the bar wire 3 passes through the intermediate rolling mill 5). For the time until the finish rolling mill 6 is removed, the peripheral speed V1 of the final rolling roll 13a of the finish rolling mill 6 and the winding speed V2 of the winding machine 8 are decelerated or accelerated by the first speed changing unit 15. However, the strip wire 3 is wound up according to the rolling speed.
In the control device 9, the winding speed V <b> 2 of the winder 8 is controlled according to the peripheral speed V <b> 1 of the final rolling roll 13 a of the finish rolling mill 6 in a state where the strip wire 3 is not removed from the intermediate rolling mill 5. Yes.

前記第２速度変更部１６は、条鋼線材３が仕上げ圧延機６から抜けた後（Ｐ２後）に、第２線速計１１で測定した線速（以降、実測値ということがある）に基づいて巻き取り機８の巻き取り速度Ｖ２を変化させるものである。
具体的には、第２速度変更部１６は、条鋼線材３が仕上げ圧延機６を抜けた後、第２線速計１１で条鋼線材３の実測値を測定し、所定時間に対する実測値の変化量に基づいて巻き取り機８の巻き取り速度Ｖ２を変化させる。
例えば、図３に示すように、所定時間（例えば、１秒間）ΔＴの間に条鋼線材３の速度がΔＶだけ下降した場合は、所定時間ΔＴ当たり条鋼線材３がΔＶずつ下降するものとして、第２速度変更部１６は巻き取り機８の巻き取り速度Ｖ２をΔＶだけ下降させる。 The second speed changing unit 16 is based on the linear velocity measured by the second linear anemometer 11 after the strip wire 3 is removed from the finish rolling mill 6 (after P2). Thus, the winding speed V2 of the winder 8 is changed.
Specifically, the second speed changing unit 16 measures the actual measurement value of the bar wire 3 with the second wire speedometer 11 after the bar wire 3 has passed through the finish rolling mill 6, and changes in the actual value with respect to a predetermined time. The winding speed V2 of the winder 8 is changed based on the amount.
For example, as shown in FIG. 3, when the speed of the strip steel wire 3 is lowered by ΔV during a predetermined time (for example, 1 second) ΔT, it is assumed that the strip steel wire 3 is lowered by ΔV per predetermined time ΔT. The two-speed changing unit 16 decreases the winding speed V2 of the winder 8 by ΔV.

なお、所定時間ΔＴの間に条鋼線材３の速度がΔＶだけ上昇した場合は、所定時間ΔＴ当たり条鋼線材３がΔＶずつ上昇するものとして、第２速度変更部１６は巻き取り機８の巻き取り速度Ｖ２をΔＶだけ上昇させる。
次に、条鋼線材の巻き取り方法と条鋼線材の圧延装置１の動作について詳しく説明する。以下の説明において、説明の便宜上、条鋼線材３は太径とし、当該条鋼線材３は仕上げ圧延機６から抜けた後に減速するものとする。
図４（ａ）、図５に示すように、条鋼線材３を中間圧延機５及び仕上げ圧延機６に導入して圧延している定常状態の際は、仕上げ圧延機６の最終圧延ロール１３ａの周速Ｖ１に応じてリード率により巻き取り機８の巻き取り速度Ｖ２を制御し、条鋼線材３を巻き取り機８により巻き取る（Ｓ１）。 In addition, when the speed of the strip steel wire 3 increases by ΔV during the predetermined time ΔT, the second speed changing unit 16 takes up the winding machine 8 by assuming that the strip steel wire 3 increases by ΔV per predetermined time ΔT. The speed V2 is increased by ΔV.
Next, the winding method of the steel strip and the operation of the rolling device 1 for the steel strip will be described in detail. In the following description, for the sake of convenience of explanation, it is assumed that the strip steel wire 3 has a large diameter, and the strip steel wire 3 is decelerated after being removed from the finish rolling mill 6.
As shown in FIG. 4A and FIG. 5, in the steady state where the strip wire 3 is introduced and rolled into the intermediate rolling mill 5 and the finishing mill 6, the final rolling roll 13 a of the finishing mill 6 is The winding speed V2 of the winder 8 is controlled by the lead rate in accordance with the peripheral speed V1, and the strip wire 3 is wound by the winder 8 (S1).

図４（ｂ）、図５に示すように、条鋼線材３の尾端側３ａが中間圧延機５の最終圧延ロール１３ｂから抜けると、第１速度変更部１５によって仕上げ圧延機６の周速Ｖ１及び巻き取り機８の巻き取り速度Ｖ２を上昇させる（Ｓ２）。巻き取り機８の巻き取り速度Ｖ２を上昇させる際は、仕上げ圧延機６の最終圧延ロール１３ａの周速Ｖ１の上昇に比例して当該巻き取り機８の巻き取り速度Ｖ２を上昇させる。
図４（ｃ）、図５に示すように、条鋼線材３の尾端側３ａが仕上げ圧延機６の最終圧延ロール１３ａから抜けると、第２線速計１１によって当該条鋼線材３の線速を測定する（Ｓ３）。そして、第２速度変更部１６によって、仕上げ圧延機６から抜けた条鋼線材３の実測値から所定時間ΔＴ当たりの変化量ΔＶを求める（Ｓ４）。 As shown in FIGS. 4B and 5, when the tail end side 3 a of the strip steel wire 3 comes out of the final rolling roll 13 b of the intermediate rolling mill 5, the peripheral speed V1 of the finish rolling mill 6 is obtained by the first speed changing unit 15. And the winding speed V2 of the winder 8 is raised (S2). When the winding speed V2 of the winder 8 is increased, the winding speed V2 of the winder 8 is increased in proportion to the increase of the peripheral speed V1 of the final rolling roll 13a of the finish rolling mill 6.
As shown in FIG. 4 (c) and FIG. 5, when the tail end side 3 a of the strip steel wire 3 comes out of the final rolling roll 13 a of the finish rolling mill 6, the wire speed of the strip steel wire 3 is adjusted by the second linear speedometer 11. Measure (S3). Then, the change rate ΔV per predetermined time ΔT is obtained by the second speed changing unit 16 from the actually measured value of the strip wire 3 that has been removed from the finish rolling mill 6 (S4).

第２速度変更部１６は、条鋼線材３が所定時間ΔＴ当たりΔＶだけ減速するものとして、巻き取り機８の巻き取り速度Ｖ２を徐々に減速させながら条鋼線材３を巻き取る（Ｓ５）。その後、条鋼線材３が巻き取り機８を抜けると（図２のＰ３）、巻き取り速度Ｖ２を減速させる。
以上のように、本発明の条鋼線材の巻き取り方法においては、条鋼線材３が仕上げ圧延機６から抜ける前は、仕上げ圧延機６の圧延速度（最終圧延ロール１３ａの周速Ｖ１）に基づいてリード率等により巻き取り機８の巻き取り速度Ｖ２を制御しており、リード率による巻き取り速度Ｖ２の制御を行っている。 The 2nd speed change part 16 winds up the strip steel wire 3, decelerating the winding speed V2 of the winding machine 8 gradually as what the strip steel wire 3 decelerates only by (DELTA) V per predetermined time (DELTA) T (S5). Thereafter, when the strip wire 3 exits the winder 8 (P3 in FIG. 2), the winding speed V2 is reduced.
As described above, in the winding method of the strip wire of the present invention, before the strip wire 3 is removed from the finish rolling mill 6, it is based on the rolling speed of the finishing mill 6 (the peripheral speed V1 of the final rolling roll 13a). The winding speed V2 of the winder 8 is controlled by the read rate or the like, and the winding speed V2 is controlled by the read rate.

条鋼線材３が仕上げ圧延機６から抜けた後は、仕上げ圧延機６抜け後の条鋼線材３の線速に基づいて巻き取り機８の巻き取り速度Ｖ２を制御しており、リード率による巻き取り速度Ｖ２の制御ではなく、仕上げ圧延機６の圧延速度とは関連させずに、抜け後の条鋼線材３の線速によって巻き取り速度Ｖ２の制御を行っている。
言い換えれば、本発明の条鋼線材の巻き取り方法では、条鋼線材３が仕上げ圧延機６から抜ける前は、仕上げ圧延機６の圧延速度に連動して巻き取り速度Ｖ２の制御を行い、条鋼線材３が仕上げ圧延機６から抜けた後は、仕上げ圧延機６の圧延速度から切り離して巻き取り速度Ｖ２の制御を行うようにしている。 After the strip wire 3 is pulled out from the finish rolling mill 6, the winding speed V2 of the winder 8 is controlled based on the wire speed of the strip steel wire 3 after the finish rolling mill 6 is pulled out, and winding is performed according to the lead rate. The winding speed V2 is controlled not by the control of the speed V2 but by the line speed of the strip steel wire 3 after being pulled out without being related to the rolling speed of the finish rolling mill 6.
In other words, in the winding method of the strip steel wire according to the present invention, before the strip wire 3 is pulled out from the finish rolling mill 6, the winding speed V2 is controlled in conjunction with the rolling speed of the finish rolling mill 6, and the strip strand 3 Is removed from the finish rolling mill 6, and the winding speed V <b> 2 is controlled separately from the rolling speed of the finish rolling mill 6.

したがって、本発明によれば、条鋼線材３が仕上げ圧延機６から抜ける前においては、仕上げ圧延機６の圧延速度に応じた巻き取り速度Ｖ２で巻き取り機８によって条鋼線材３を均一に巻き取ることができると共に、条鋼線材３が仕上げ圧延機６から抜けた後においては、条鋼線材３の線速に応じた巻き取り速度Ｖ２で巻き取り機８によって条鋼線材３を均一に巻き取ることができる。
本発明の条鋼線材の巻き取り方法は上記の実施形態に限定されない。即ち、上記の実施の形態では、条鋼線材３が仕上げ圧延機６から抜けた後、当該条鋼線材３の線速を第２線速計１１で測定して、この測定値から単位時間当たりの減速又は加速の推定値を求めていたが、これに代え、予め鋼種毎や線径毎に仕上げ圧延機６抜け後の条鋼線材の速度変化を分類して制御装置９等に記憶させておき、圧延の際に分類した速度変化を制御装置９から読み出して、巻き取り機８の巻き取り速度Ｖ２を制御するようにしてもよい。 Therefore, according to the present invention, before the strip steel wire 3 comes out of the finish rolling mill 6, the strip steel wire 3 is uniformly wound by the winder 8 at the winding speed V2 corresponding to the rolling speed of the finish rolling mill 6. In addition, after the strip wire 3 is removed from the finish rolling mill 6, the strip wire 3 can be uniformly wound by the winder 8 at a winding speed V2 corresponding to the wire speed of the strip wire 3. .
The winding method of the strip steel wire of this invention is not limited to said embodiment. That is, in the above embodiment, after the strip wire 3 is removed from the finish rolling mill 6, the linear velocity of the strip wire 3 is measured by the second linear velocimeter 11, and the deceleration per unit time is determined from this measured value. Or the estimated value of acceleration was calculated | required, but it replaces with this and classify | categorizes the speed change of the strip steel wire after the finishing rolling mill 6 pulls out beforehand for every steel type or every wire diameter, and memorize | stores it in the control apparatus 9 grade | etc., The speed change classified at the time may be read from the control device 9 to control the winding speed V2 of the winder 8.

本発明の実施の形態を示す条鋼線材の圧延装置の概要図である。It is a schematic diagram of the rolling apparatus of the strip wire which shows the embodiment of the present invention. 速度の変化を示す図である。It is a figure which shows the change of speed. 第２線速計で測定した際の条鋼線材の速度変化を示す図である。It is a figure which shows the speed change of the strip steel wire at the time of measuring with a 2nd wire speed meter. 条鋼線材の移動を示す図である。It is a figure which shows the movement of a strip steel wire. 条鋼線材の巻き取り方法を示すフローチャート図である。It is a flowchart figure which shows the winding method of a strip steel wire.

符号の説明Explanation of symbols

１ 圧延装置
３ 条鋼線材（圧延材）
３ａ条鋼線材の尾端側
４ 粗圧延機
５ 中間圧延機
６ 仕上げ圧延機
７ ピンチロール
９ 制御装置
１１ 第２線速計
１２ａ 最終圧延スタンド
１２ｂ 最終圧延スタンド
１３ 圧延ロール 1 Rolling device 3 Strip steel wire (rolled material)
3a strip steel wire tail end side 4 Coarse rolling mill 5 Intermediate rolling mill 6 Finishing rolling mill 7 Pinch roll 9 Controller 11 Second linear speedometer 12a Final rolling stand 12b Final rolling stand 13 Rolling roll

Claims (3)

仕上げ圧延機で圧延した条鋼線材を前記仕上げ圧延機の下流側に配置された巻き取り機で巻き取る条鋼線材の巻き取り方法において、
前記条鋼線材が仕上げ圧延機から抜ける前は、仕上げ圧延機の圧延速度に基づいて前記巻き取り機の巻き取り速度を制御し、前記条鋼線材が仕上げ圧延機から抜けた後は、条鋼線材の線速の実測値に基づいて前記巻き取り機の巻き取り速度を制御することを特徴とする条鋼線材の巻き取り方法。 In the winding method of the bar wire taken up by the winder disposed on the downstream side of the finish rolling mill, the strip steel wire rolled by the finish rolling mill,
Before the strip steel wire is removed from the finish rolling mill, the winding speed of the winder is controlled based on the rolling speed of the finish rolling mill, and after the strip steel wire is pulled out of the finish rolling mill, the wire of the strip steel wire is controlled. A method for winding a strip steel wire, wherein a winding speed of the winder is controlled based on an actual measurement value of speed. 前記条鋼線材の仕上げ圧延機抜け後においては、当該条鋼線材の線速の実測値を測定し、所定時間に対する実測値の変化量に基づいて巻き取り機の巻き取り速度を制御することを特徴とする請求項１に記載の条鋼線材の巻き取り方法。   After the strip-rolling wire is removed from the finish rolling mill, the actual value of the wire speed of the strip-wire is measured, and the winding speed of the winder is controlled based on the amount of change in the actual value with respect to a predetermined time. The winding method of the strip steel wire according to claim 1 to be performed. 前記条鋼線材が仕上げ圧延機から抜ける前に、仕上げ圧延機の圧延速度及び巻き取り機の巻き取り速度を、上昇又は下降させることを特徴とする請求項２に記載の条鋼線材の巻き取り方法。   The winding method of the bar wire according to claim 2, wherein the rolling speed of the finishing mill and the winding speed of the winder are increased or decreased before the strip wire is removed from the finishing mill.
JP2007212870A 2007-08-17 2007-08-17 Winding method for steel strip Expired - Fee Related JP5085226B2 (en)

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Publication number Priority date Publication date Assignee Title
JP2017170481A (en) * 2016-03-23 2017-09-28 株式会社神戸製鋼所 Ring diameter control method of wire rod and manufacturing device of wire rod
JPWO2022124343A1 (en) * 2020-12-09 2022-06-16

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JPS50129453A (en) * 1974-03-30 1975-10-13
JPS59107723A (en) * 1982-12-10 1984-06-22 Kawasaki Steel Corp Controlling method of speed for wire rod coiling installation
JPH06238330A (en) * 1993-02-18 1994-08-30 Sumitomo Heavy Ind Ltd Method for controlling front and rear points in wire take-up machine
JP2004074229A (en) * 2002-08-19 2004-03-11 Daido Steel Co Ltd Device for winding rolled wire rod
JP2005034909A (en) * 2003-06-26 2005-02-10 Kobe Steel Ltd Rolling method and rolling equipment for steel wire rod

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JPS50129453A (en) * 1974-03-30 1975-10-13
JPS59107723A (en) * 1982-12-10 1984-06-22 Kawasaki Steel Corp Controlling method of speed for wire rod coiling installation
JPH06238330A (en) * 1993-02-18 1994-08-30 Sumitomo Heavy Ind Ltd Method for controlling front and rear points in wire take-up machine
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JP2005034909A (en) * 2003-06-26 2005-02-10 Kobe Steel Ltd Rolling method and rolling equipment for steel wire rod

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017170481A (en) * 2016-03-23 2017-09-28 株式会社神戸製鋼所 Ring diameter control method of wire rod and manufacturing device of wire rod
JPWO2022124343A1 (en) * 2020-12-09 2022-06-16
WO2022124343A1 (en) * 2020-12-09 2022-06-16 Ｊｆｅスチール株式会社 Method for producing wire
JP7347667B2 (en) 2020-12-09 2023-09-20 Ｊｆｅスチール株式会社 Wire manufacturing method

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