JPH0857537A - Method of automatic deceleration control for payoff reel - Google Patents
Method of automatic deceleration control for payoff reelInfo
- Publication number
- JPH0857537A JPH0857537A JP19638294A JP19638294A JPH0857537A JP H0857537 A JPH0857537 A JP H0857537A JP 19638294 A JP19638294 A JP 19638294A JP 19638294 A JP19638294 A JP 19638294A JP H0857537 A JPH0857537 A JP H0857537A
- Authority
- JP
- Japan
- Prior art keywords
- coil
- inner diameter
- reel
- sleeve
- payoff reel
- 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.)
- Granted
Links
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、鋼帯等の金属ストリッ
プを処理するプロセスラインの入側でコイルを巻き戻す
ペイオフリールにおいて、巻き戻し中のコイルの金属ス
トリップの残量がわずかになった時点で自動減速を行う
制御方法に関し、さらに詳しくは、内径部分に鋼製の内
径スリーブを装着したコイルを巻き戻す際のペイオフリ
ールの自動減速制御方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pay-off reel for rewinding a coil on the entry side of a process line for processing a metal strip such as a steel strip. More specifically, the present invention relates to a control method for automatically decelerating a payoff reel when rewinding a coil having an inner diameter sleeve made of steel mounted on the inner diameter portion.
【０００２】[0002]
【従来の技術】鋼帯等の金属ストリップ（以下、冷延鋼
帯の例で説明する）を処理するプロセスラインの入側に
は、コイルを巻き戻してライン内へ送り出すペイオフリ
ールが設置されており、巻き戻し中のコイルの金属スト
リップの残量がわずかになった時点でペイオフリールを
含むライン入側設備の減速を開始し、滑らかに停止させ
ることが行われている。2. Description of the Related Art A pay-off reel for rewinding a coil and feeding it into the line is installed on the inlet side of a process line for processing a metal strip such as a steel strip (which will be described below as an example of a cold rolled steel strip). Therefore, when the remaining amount of the metal strip of the coil being rewound becomes very small, deceleration of the line entrance side equipment including the pay-off reel is started and smoothly stopped.
【０００３】減速を開始するタイミングが早すぎると生
産能率を低下させることになり、逆に遅すぎると鋼帯の
尾端がライン入側の所定位置に止まらず、設備を破損さ
せたり、尾端処理や次コイルとの接続の作業に支障を来
すなどの不都合がある。特開平1-166818号公報に記載さ
れているコイル巻き戻し時の自動減速方法は、ペイオフ
リールにおけるコイルの少なくとも中心部の側面形状を
イメージセンサで検出してコイル側面の凹凸の画像を作
成し、この画像に基づいてコイル巻き数を測定し、測定
したコイル巻き数が、予め設定した減速開始コイル巻き
数と一致した時点で制御装置に減速指令を出すことを特
徴としている。If the timing to start deceleration is too early, the production efficiency will be reduced. On the contrary, if it is too late, the tail end of the steel strip will not stop at the predetermined position on the line entry side, which may damage the equipment or cause the tail end to fall. There is an inconvenience, such as a hindrance to the processing and connection work with the next coil. JP-A 1-166818 discloses an automatic deceleration method at the time of rewinding a coil, and creates an image of the unevenness of the coil side surface by detecting the side surface shape of at least the central portion of the coil in the pay-off reel with an image sensor, The number of coil windings is measured based on this image, and when the measured number of coil windings matches a preset deceleration start coil winding number, a deceleration command is issued to the control device.
【０００４】また、特開平４-94812号公報に記載されて
いる自動減速制御方法は、ペイオフリールにより巻き戻
されるコイルの外径、内径、板厚の各情報を事前に収集
するとともに、巻き戻しを行っている際のペイオフリー
ルの回転数および回転速度を検出し、前記のコイル情報
からコイルの残巻き数を演算し、ついでこの残巻き数と
前記コイル情報とペイオフリール回転速度の検出値から
ストリップの走行速度を演算して、ペイオフリールの自
動減速開始時に必要なペイオフリールにおける必要コイ
ル残長を算出する一方、コイル残巻き数とコイル情報か
ら現時点のコイル残長を演算し、前記の必要コイル残長
に一致した時点でペイオフリールの減速を開始すること
を特徴としている。The automatic deceleration control method disclosed in Japanese Patent Laid-Open No. 4-94812 collects information about the outer diameter, inner diameter, and plate thickness of the coil rewound by the pay-off reel in advance and rewinds the coil. The number of revolutions and the rotational speed of the payoff reel during the operation are detected, the remaining number of windings of the coil is calculated from the coil information, and then the remaining number of windings, the coil information and the detected value of the payoff reel rotational speed are calculated. The strip running speed is calculated to calculate the required coil remaining length on the payoff reel that is required at the start of automatic deceleration of the payoff reel, while the current coil remaining length is calculated from the coil remaining winding number and coil information, and the above-mentioned required The feature is that deceleration of the pay-off reel is started at the time when the remaining coil length is matched.
【０００５】ところで、一部の金属ストリップ、とくに
薄物の鋼帯コイルを取り扱うプロセスラインにおいて
は、コイル内径部分が張力によって内側に突出するいわ
ゆるキンク現象を防止するため、鋼製の内径スリーブを
装着し、その外側にコイルを巻き取ることが行われてお
り、たとえば板厚 0.4mm以下のぶりき原板を扱う場合の
内径スリーブの装着率は 100％近い。こうした内径スリ
ーブの肉厚は、使用されるプロセスラインの巻き取り張
力によって決定されるため、たとえば 3.2〜10mmという
広い範囲に分布しており、前記のような従来の自動減速
制御において既知の一定値として扱われていたコイル内
径、すなわち内径スリーブの外径は、変数として取り扱
わざるを得ない状況となっている。さらに、内径スリー
ブの外径自体も使用による磨耗等によって変化してお
り、事前の情報と相違が生じているなどの問題点があっ
た。By the way, in a process line for handling some metal strips, especially thin steel strip coils, a steel inner diameter sleeve is attached to prevent the so-called kink phenomenon in which the inner diameter portion of the coil protrudes inward due to tension. The coil is wound on the outer side of the coil. For example, when handling a tin plate having a plate thickness of 0.4 mm or less, the mounting rate of the inner diameter sleeve is close to 100%. The wall thickness of such an inner diameter sleeve is determined by the winding tension of the process line used, so that it is distributed in a wide range of 3.2 to 10 mm, for example, and has a constant value known in the conventional automatic deceleration control as described above. The coil inner diameter, which has been treated as, that is, the outer diameter of the inner diameter sleeve, has to be treated as a variable. Further, the outer diameter of the inner diameter sleeve itself is changed due to wear and the like due to use, and there is a problem in that there is a difference from the previous information.
【０００６】[0006]
【発明が解決しようとする課題】本発明は、このような
内径スリーブ使用に伴う問題点を解消し、使用時点にお
ける内径スリーブの外径、すなわちコイル内径を簡単に
実測して自動減速制御の精度を向上させ、製品歩留りな
らびに生産性を向上させることを目的とする。SUMMARY OF THE INVENTION The present invention solves the problems associated with the use of such an inner diameter sleeve, and simply measures the outer diameter of the inner diameter sleeve at the time of use, that is, the coil inner diameter, and the accuracy of automatic deceleration control. To improve product yield and productivity.
【０００７】[0007]
【課題を解決するための手段】本発明は、鋼製の内径ス
リーブの外周に金属ストリップを巻き付けたコイルをペ
イオフリールにおいて巻き戻し、巻き戻し中のコイルの
金属ストリップ残量を検出してペイオフリールの減速を
開始するペイオフリールの自動減速制御方法において、
前記内径スリーブの円筒部分に少なくとも１か所の貫通
孔を形成しておき、ペイオフリール装入前のコイル内径
部分にコイルの巻き取り中心軸まわりに回転自在に支持
したセンサを軸方向に前記貫通孔の位置まで挿入し、円
周方向に１回転させて中心軸とコイル内径との距離を測
定することにより、前記貫通孔において内径スリーブの
外周に巻き付けられたコイル内径を実測し、この実測値
と、上流工程により与えられるコイル外径ならびに板厚
情報と、巻き戻し中のペイオフリールの回転数ならびに
回転速度の検出値とからコイルの残巻き数を演算するこ
とを特徴とするペイオフリールの自動減速制御方法であ
り、望ましくは、内径スリーブの円筒部分に形成する貫
通孔を、軸方向に同一位置で、位相の 180°異なる対称
位置の２か所とした上記のペイオフリールの自動減速制
御方法である。SUMMARY OF THE INVENTION According to the present invention, a payoff reel is provided in which a coil having a metal strip wound around the outer circumference of a steel inner diameter sleeve is rewound in a payoff reel, and the remaining amount of the metal strip in the coil being unwound is detected. In the automatic deceleration control method for the payoff reel that starts deceleration of
At least one through hole is formed in the cylindrical portion of the inner diameter sleeve, and the sensor, which is rotatably supported around the coil winding center axis, is axially penetrated in the inner diameter portion of the coil before loading the pay-off reel. The inner diameter of the coil wound around the outer circumference of the inner diameter sleeve in the through hole was measured by inserting the hole to the position of the hole and rotating it once in the circumferential direction to measure the distance between the central axis and the inner diameter of the coil. And the coil outer diameter and plate thickness information given by the upstream process, and the number of remaining turns of the coil calculated from the detected values of the number of rotations and the rotation speed of the payoff reel during rewinding. This is a deceleration control method, and it is desirable that the through holes formed in the cylindrical portion of the inner diameter sleeve be at two symmetrical positions at the same axial position but different in phase by 180 °. Serial is an automatic deceleration control method for a payoff reel.
【０００８】[0008]
【作 用】本発明によれば、内径スリーブに測定用の貫
通孔を設け、内径スリーブの中心軸からこの貫通孔をと
おして覗いている外側の鋼帯の内面までの距離をセンサ
で測定するようにしたから、内径スリーブの肉厚とは無
関係に巻かれているコイルの内径を実測することができ
る。[Operation] According to the present invention, a through hole for measurement is provided in the inner diameter sleeve, and the distance from the central axis of the inner diameter sleeve to the inner surface of the outer steel strip which is seen through this through hole is measured by a sensor. Therefore, the inner diameter of the coil wound can be measured regardless of the wall thickness of the inner diameter sleeve.
【０００９】[0009]
【実施例】本発明の一実施例を図面により詳細に説明す
る。図４（ａ）は本発明において使用する内径スリーブ
の正面図、（ｂ）は一部切断側面図で、１は内径スリー
ブ、２は測定用の貫通孔で、内径スリーブのＤo は外
径、Ｄi は内径、ｔは肉厚、Ｗは幅、ａは貫通孔２の直
径である。An embodiment of the present invention will be described in detail with reference to the drawings. 4A is a front view of an inner diameter sleeve used in the present invention, FIG. 4B is a partially cut side view, 1 is an inner diameter sleeve, 2 is a through hole for measurement, and D o of the inner diameter sleeve is an outer diameter. , D i is the inner diameter, t is the wall thickness, W is the width, and a is the diameter of the through hole 2.
【００１０】すなわち、この内径スリーブ１は、円筒状
の鋼製スリーブの軸方向の中央付近で位相の 180°異な
る対称位置に、直径ａの貫通孔２が２か所設けられてい
る。図５は、この内径スリーブ１に冷延鋼帯（コイル）
３を巻き付けた状態を示す。内径スリーブ１の外周に冷
延鋼帯３を巻き付けるのであるから、内径スリーブ１の
外径Ｄo は、冷延鋼帯３の内径に等しい。That is, the inner diameter sleeve 1 is provided with two through holes 2 having a diameter a at symmetrical positions in the vicinity of the center of the cylindrical steel sleeve in the axial direction and having a phase difference of 180 °. FIG. 5 shows the cold rolled steel strip (coil) on the inner diameter sleeve 1.
The state where 3 is wound is shown. Since the cold rolled steel strip 3 is wound around the outer circumference of the inner diameter sleeve 1, the outer diameter D o of the inner diameter sleeve 1 is equal to the inner diameter of the cold rolled steel strip 3.
【００１１】図１は、冷延鋼帯３を巻き付けた内径スリ
ーブ１内に非接触式のセンサ４を装入して内径スリーブ
１の外径を測定している状態を示す断面図、図２はその
ＸＸ矢視断面図である。すなわち、内径スリーブ１の内
側にレーザ式距離計等の非接触式のセンサ４を幅方向中
央付近まで挿入する。このセンサ４は、内径スリーブ１
の中心軸とほぼ一致する回転軸まわりに回転可能に支持
されているので、矢印で示したようにこの軸まわりに、
すなわち円周方向に１回転させる間に、回転軸と内径ス
リーブ１の内面との距離がほぼ連続して測定できる。測
定データの例を図３に示す。一般部分は内径スリーブ１
の内面との距離であるが、貫通孔２の位置では内径スリ
ーブ１の外側にある冷延鋼帯３の内側との距離を測定す
ることになる。図２に示すように、２か所の貫通孔２に
対応する距離、ＡとＢの和が内径スリーブ１の外径にな
る。かりにセンサ４の回転軸と内径スリーブ１の中心軸
とが完全に一致していなくても、 180°位相の異なるＡ
とＢを加えることによって誤差は相殺される。FIG. 1 is a sectional view showing a state in which a non-contact type sensor 4 is loaded in an inner diameter sleeve 1 around which a cold rolled steel strip 3 is wound to measure the outer diameter of the inner diameter sleeve 1. Is a sectional view taken along line XX. That is, the non-contact type sensor 4 such as a laser range finder is inserted inside the inner diameter sleeve 1 up to near the center in the width direction. This sensor 4 has an inner diameter sleeve 1
Since it is rotatably supported around a rotation axis that is substantially coincident with the central axis of, about this axis, as indicated by the arrow,
That is, the distance between the rotating shaft and the inner surface of the inner diameter sleeve 1 can be measured substantially continuously during one rotation in the circumferential direction. An example of measurement data is shown in FIG. Inner diameter sleeve 1 for general part
At the position of the through hole 2, the distance from the inner surface of the cold-rolled steel strip 3 outside the inner diameter sleeve 1 is measured. As shown in FIG. 2, the distance corresponding to the two through holes 2 and the sum of A and B are the outer diameter of the inner diameter sleeve 1. Even if the rotation axis of the sensor 4 and the center axis of the inner diameter sleeve 1 do not completely coincide with each other, the phase difference of 180 ° A
The error is canceled by adding and B.
【００１２】なお、貫通孔２を２か所設ける例について
説明したが、磨耗によっても内径スリーブの肉厚は均一
で、少なくとも外径と内径とは同心円であると仮定すれ
ば、貫通孔２が１か所のみでも、貫通孔２以外の部分と
の段差が測定できるから外径の実測はできる。逆に、軸
方向同一位置に３か所以上の貫通孔を設けたり、軸方向
の異なる位置に複数箇所設けるようにすれば、測定精度
は向上する。ただし、冷延鋼帯が薄物でスリーブ表面の
マークが鋼板に転写されやすい場合は、貫通孔２の縁部
分の盛り上がりなどのないよう、手入れをすることが必
要であり、品質上あまり多数の孔を設けることは好まし
くない。Although an example in which the through holes 2 are provided at two locations has been described, assuming that the inner diameter sleeve has a uniform thickness due to wear and at least the outer diameter and the inner diameter are concentric circles, the through holes 2 are The outer diameter can be measured because the step difference with the portion other than the through hole 2 can be measured even at only one place. On the contrary, if three or more through holes are provided at the same position in the axial direction or a plurality of holes are provided at different positions in the axial direction, the measurement accuracy is improved. However, if the cold-rolled steel strip is thin and the marks on the sleeve surface are easily transferred to the steel plate, it is necessary to take care so that the edges of the through-holes 2 do not rise, and there are too many holes in terms of quality. It is not preferable to provide.
【００１３】以上の方法によって内径スリーブ１の外
径、すなわちコイル内径を実測し、この実測値と、上流
工程により与えられるコイル外径ならびに板厚情報と、
巻き戻し中のペイオフリールの回転数ならびに回転速度
の検出値とから前記特開平４-94812号公報に記載された
ような手順によってコイルの残巻き数を演算し、精度よ
く鋼帯末端部分の自動減速制御を行うのである。By the above method, the outer diameter of the inner diameter sleeve 1, that is, the coil inner diameter is measured, and the measured value and the coil outer diameter and plate thickness information given in the upstream process,
The number of remaining turns of the coil is calculated from the detected values of the number of rotations and the rotation speed of the payoff reel during rewinding according to the procedure described in Japanese Patent Laid-Open No. 4-94812, and the automatic end portion of the steel strip is accurately measured. The deceleration control is performed.
【００１４】[0014]
【発明の効果】本発明によれば、内径部分にキンク防止
のための内径スリーブを装着したコイルにおいても鋼帯
部分の内径を実測することができるから、スリーブの肉
厚にかかわりなく鋼帯の残長を精度良く推定して自動減
速を行うことができ、製品歩留りならびに生産性が向上
するという、すぐれた効果を奏する。According to the present invention, since the inner diameter of the steel strip portion can be measured even in the coil in which the inner diameter sleeve for preventing kink is attached to the inner diameter portion, the steel strip of the steel strip can be formed regardless of the thickness of the sleeve. The remaining length can be accurately estimated and the automatic deceleration can be performed, which has an excellent effect that the product yield and the productivity are improved.
【図１】本発明の実施例を示すコイル内径部分の断面図
である。FIG. 1 is a cross-sectional view of a coil inner diameter portion showing an embodiment of the present invention.
【図２】図１のＸＸ矢視断面図である。FIG. 2 is a sectional view taken along line XX of FIG.
【図３】外径の測定結果を示すグラフである。FIG. 3 is a graph showing measurement results of outer diameter.
【図４】本発明に使用する内径スリーブの（ａ）は正面
図、（ｂ）は一部切断側面図である。4A is a front view and FIG. 4B is a partially cut side view of an inner diameter sleeve used in the present invention.
【図５】内径スリーブにコイルを巻き付けた状態を示す
正面図である。FIG. 5 is a front view showing a state in which a coil is wound around an inner diameter sleeve.
１ 内径スリーブ ２ 貫通孔 ３ 冷延鋼帯（コイル） ４ センサ 1 Inner diameter sleeve 2 Through hole 3 Cold rolled steel strip (coil) 4 Sensor
Claims (2)
ップを巻き付けたコイルをペイオフリールにおいて巻き
戻し、巻き戻し中のコイルの金属ストリップ残量を検出
してペイオフリールの減速を開始するペイオフリールの
自動減速制御方法において、前記内径スリーブの円筒部
分に少なくとも１か所の貫通孔を形成しておき、ペイオ
フリール装入前のコイル内径部分にコイルの巻き取り中
心軸まわりに回転自在に支持したセンサを軸方向に前記
貫通孔の位置まで挿入し、円周方向に１回転させて中心
軸とコイル内径との距離を測定することにより、前記貫
通孔において内径スリーブの外周に巻き付けられたコイ
ル内径を実測し、この実測値と、上流工程により与えら
れるコイル外径ならびに板厚情報と、巻き戻し中のペイ
オフリールの回転数ならびに回転速度の検出値とからコ
イルの残巻き数を演算することを特徴とするペイオフリ
ールの自動減速制御方法。1. A payoff reel in which a coil, in which a metal strip is wound around an outer circumference of a steel inner diameter sleeve, is rewound in a payoff reel, and the remaining amount of the metal strip of the coil being unwound is detected to start deceleration of the payoff reel. In the automatic deceleration control method, a sensor in which at least one through hole is formed in the cylindrical portion of the inner diameter sleeve and the inner diameter portion of the coil before loading the pay-off reel is rotatably supported around the coil winding center axis. Is inserted axially to the position of the through hole, and is rotated once in the circumferential direction to measure the distance between the center axis and the coil inner diameter, so that the coil inner diameter wound around the outer circumference of the inner diameter sleeve in the through hole is measured. Actually measured, this measured value, coil outer diameter and plate thickness information given by the upstream process, and the number of rotations of the pay-off reel during rewinding Also, an automatic deceleration control method for payoff reels, characterized in that the number of remaining turns of the coil is calculated from the detected value of the rotation speed.
孔を、軸方向に同一位置で、位相の 180°異なる対称位
置の２か所とした請求項１に記載のペイオフリールの自
動減速制御方法。2. The automatic deceleration control method for a pay-off reel according to claim 1, wherein the through holes formed in the cylindrical portion of the inner diameter sleeve are provided at two symmetrical positions at the same position in the axial direction and different in phase by 180 °. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19638294A JP2759055B2 (en) | 1994-08-22 | 1994-08-22 | Automatic payoff reel deceleration control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19638294A JP2759055B2 (en) | 1994-08-22 | 1994-08-22 | Automatic payoff reel deceleration control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0857537A true JPH0857537A (en) | 1996-03-05 |
| JP2759055B2 JP2759055B2 (en) | 1998-05-28 |
Family
ID=16356948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19638294A Expired - Fee Related JP2759055B2 (en) | 1994-08-22 | 1994-08-22 | Automatic payoff reel deceleration control method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2759055B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100805048B1 (en) * | 2002-05-07 | 2008-02-20 | 주식회사 포스코 | Reel tension and speed control method of skim pass mill for improving surface scar of coil |
| KR100897167B1 (en) * | 2002-09-13 | 2009-05-14 | 주식회사 포스코 | Centering apparatus for charging coil with pay off real |
| CN108603753A (en) * | 2016-03-16 | 2018-09-28 | 横滨橡胶株式会社 | The interior perimeter measurement device of round member |
-
1994
- 1994-08-22 JP JP19638294A patent/JP2759055B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100805048B1 (en) * | 2002-05-07 | 2008-02-20 | 주식회사 포스코 | Reel tension and speed control method of skim pass mill for improving surface scar of coil |
| KR100897167B1 (en) * | 2002-09-13 | 2009-05-14 | 주식회사 포스코 | Centering apparatus for charging coil with pay off real |
| CN108603753A (en) * | 2016-03-16 | 2018-09-28 | 横滨橡胶株式会社 | The interior perimeter measurement device of round member |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2759055B2 (en) | 1998-05-28 |
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