JPS628247B2 - - Google Patents
Info
- Publication number
- JPS628247B2 JPS628247B2 JP19960781A JP19960781A JPS628247B2 JP S628247 B2 JPS628247 B2 JP S628247B2 JP 19960781 A JP19960781 A JP 19960781A JP 19960781 A JP19960781 A JP 19960781A JP S628247 B2 JPS628247 B2 JP S628247B2
- Authority
- JP
- Japan
- Prior art keywords
- pinch roll
- winding
- pressing force
- steel strip
- rotation speed
- 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.)
- Expired
Links
- 238000004804 winding Methods 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 description 17
- 239000010959 steel Substances 0.000 description 17
- 238000005096 rolling process Methods 0.000 description 6
- 230000000669 biting effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B39/006—Pinch roll sets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
- B21C47/02—Winding-up or coiling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B39/14—Guiding, positioning or aligning work
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
- Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
- Winding, Rewinding, Material Storage Devices (AREA)
Description
【発明の詳細な説明】
本発明は、鋼帯をコイル巻きするに際し、巻姿
を良好にさせるためのピンチロール制御方法に関
する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a pinch roll control method for improving the winding appearance when winding a steel strip into a coil.
鋼帯圧延ラインにおいては、仕上圧延工程を経
た鋼帯をピンチロールでバツクテンシヨンを付与
しながらダウンコイラでコイル巻きする。その
際、巻取張力の度合や案内具合に原因してルーズ
巻きやテレスコープ状の片寄り巻きが生ずるた
め、巻取材料に耳折れや共ずれが発生し、成品の
品質を低下させると共に、特にその傾向の大きい
ボトム部分はスクラツプ処理せざるをえなかつ
た。 In the steel strip rolling line, the steel strip that has undergone the finish rolling process is coiled using a down coiler while applying back tension using pinch rolls. At this time, loose winding or telescopic winding occurs due to the degree of winding tension and guidance, resulting in edge folds and misalignment of the winding material, which deteriorates the quality of the finished product. In particular, the bottom part, where this tendency was large, had to be scrapped.
したがつて、巻姿を改善し、歩留低下を防止す
るための手段として、従来は、オペレータが経験
的に判断してピンチロールの圧下量を変化させて
巻取張力を調整するようにしていた。しかしなが
ら、巻取材料の板厚変動や幅方向の板プロフイル
は同一の材料においても一定ではないので、この
ような変動に対してオペレータの経験だけでは十
分な対応が困難であり、満足すべき結果は得られ
ていなかつた。 Therefore, as a means to improve the winding appearance and prevent a decrease in yield, conventionally the operator has used empirical judgment to adjust the winding tension by changing the amount of reduction of the pinch rolls. Ta. However, since variations in the thickness of the material to be wound and the profile in the width direction are not constant even for the same material, it is difficult to adequately respond to such variations with only the operator's experience, and it is difficult to achieve satisfactory results. was not obtained.
本発明の目的は、ダウンコイラ用のピンチロー
ルの圧下力および圧下の状態を制御しうる方法を
提供し、これにより従来の巻取方法における欠点
に対応してコイルの巻姿の向上を図ることにあ
る。 An object of the present invention is to provide a method for controlling the rolling force and rolling state of pinch rolls for a down coiler, and thereby improve the winding appearance of a coil in order to address the drawbacks of conventional winding methods. be.
本発明においては、ダウンコイラに対して巻取
導入を促すピンチロールのうち、第１図に示すよ
うに、上側のピンチロール１だけを流体圧シリン
ダ２によつて圧下力調節可能に構成する。ピンチ
ロール１は、第２図のようにロール軸支持部の両
端をそれぞれ別々のシリンダ２によつて支持させ
てあり、左右のシリンダに対してまつたく同じ動
作、またはそれぞれ異なつた動作を選択的に行え
るようにしておき、後述する制御装置４によつて
作動指令を行う。 In the present invention, among the pinch rolls that urge the down coiler to take up winding, only the upper pinch roll 1 is configured so that its rolling force can be adjusted by a fluid pressure cylinder 2, as shown in FIG. As shown in Fig. 2, the pinch roll 1 has both ends of the roll shaft support section supported by separate cylinders 2, and the left and right cylinders can be selectively operated to perform the same operation or to perform different operations. The controller 4, which will be described later, issues an operation command.
さらに、ピンチロール１の入側には、鋼帯ａの
両側を案内するサイド・ガイド３を設ける。サイ
ド・ガイド３は鋼帯ａのエツジの至近位置に配置
されて鋼帯の走行方向を案内するライナ３１と、
このライナに加わる接触圧力下を検知するロー
ド・セル３２とを備え、鋼帯がいずれか一方へ片
寄つて走行されたときにはライナ３１に対して鋼
帯ａが接触することによつて生ずる接触圧を直ち
に検知する。 Furthermore, side guides 3 are provided on the entry side of the pinch roll 1 to guide both sides of the steel strip a. The side guide 3 includes a liner 31 that is placed close to the edge of the steel strip a and guides the running direction of the steel strip.
It is equipped with a load cell 32 that detects the contact pressure applied to the liner, and when the steel strip is traveling biased to one side, the contact pressure generated by the contact of the steel strip a with the liner 31 is detected. Detect immediately.
本発明法においては、第３図に示すように、制
御装置４を設けておき、ロード・セル３によつて
検出された接触圧を、材料の片寄り状態を示す信
号として入力させるようにしてあり、また、ピン
チロール１の回転速度を検出する回転速度検出器
６と、巻取マンドレル５の回転速度を検出する別
の回転速度検出器７とを設けておき、それぞれの
回転速度を検出して、電気信号によつて制御装置
４へ入力する。 In the method of the present invention, as shown in FIG. 3, a control device 4 is provided, and the contact pressure detected by the load cell 3 is inputted as a signal indicating the uneven state of the material. In addition, a rotation speed detector 6 for detecting the rotation speed of the pinch roll 1 and another rotation speed detector 7 for detecting the rotation speed of the winding mandrel 5 are provided, and the rotation speeds of each are detected. Then, it is inputted to the control device 4 as an electric signal.
制御装置４は、これらの入力信号を予め設定し
てある設定値と比較し、設定条件に応じた作動指
令信号をシリンダ２に送る。 The control device 4 compares these input signals with preset set values and sends an operation command signal to the cylinder 2 according to the set conditions.
本発明においては、ピンチロール１の回転数と
マンドレル５の回転数とを連続的に検出し、両者
の回転数からコイル巻取時のスリツプ率を求め、
鋼帯ａの走行速度が、ピンチロール１の回転速度
よりも10〜50％の範囲で早くなるようにシリンダ
２に作動指令を出力させるように設定する。ま
た、サイド・ガイド３のいずれか一方から片寄り
を検出する信号が入力されたときは、ピンチロー
ル１における反対側の圧下量を部分的に増大させ
るように、相応するシリンダ２に作動を指令する
ように設定する。また、材料の噛込み性を良好に
するために、鋼帯ａのトツプがピンチロール１に
噛込むまでの間は、ピンチロールの押圧力を強力
に設定して制御が行なわないようにし、巻取マン
ドレル５に１巻目が巻取られた以後に制御を開始
させる。 In the present invention, the number of rotations of the pinch roll 1 and the number of rotations of the mandrel 5 are continuously detected, and the slip rate at the time of coil winding is determined from the number of rotations of both.
The operating command is set to be output to the cylinder 2 so that the running speed of the steel strip a is faster than the rotational speed of the pinch roll 1 within a range of 10 to 50%. Furthermore, when a signal detecting deviation from one of the side guides 3 is input, an operation is commanded to the corresponding cylinder 2 so as to partially increase the rolling reduction amount on the opposite side of the pinch roll 1. Set it to do so. In addition, in order to improve the biting property of the material, the pressing force of the pinch rolls is set strongly so that the control is not performed until the top of the steel strip a bites into the pinch rolls 1. Control is started after the first roll is wound onto the take-up mandrel 5.
本発明法の構成によれば、マンドレル５に対す
るピンチロール１の回転比率が一定値を超える
と、ピンチロール１に対して押圧力を増加させる
指令が出され、走行中の鋼帯に対してプレーキ動
作が働くため、マンドレルに巻取られる鋼帯の張
力が一定の状態に確保され、したがつて、ルーズ
巻を発生させない。また、走行中の鋼帯に片寄り
現象が発生すると、片寄つた側に配置されたサイ
ド・ガイド３によつて検出され、ピンチロール１
の反対側の押圧力を増大させるようにシリンダ２
に指令を発するため、ピンチロール１の左右の押
圧力に差を生じて鋼帯がチルチング制御され、走
行方向が修正される。 According to the structure of the method of the present invention, when the rotation ratio of the pinch roll 1 to the mandrel 5 exceeds a certain value, a command is issued to the pinch roll 1 to increase the pressing force, and the plate is applied to the running steel strip. Due to the action, the tension of the steel strip wound around the mandrel is maintained constant, thus preventing loose winding. In addition, when a deviation phenomenon occurs in the running steel strip, it is detected by the side guide 3 arranged on the side where the deviation occurs, and the pinch roll 1
cylinder 2 to increase the pressing force on the opposite side of
In order to issue a command to the steel strip, a difference is generated between the pressing forces on the left and right sides of the pinch roll 1, and the steel strip is tilted and controlled, and the running direction is corrected.
このように、本発明法によれば鋼帯のコイル巻
姿が向上され、特に従来極めて問題の多かつたボ
トム部の巻形状を改善させることができるため、
成品の歩留は向上し、品質向上にも有効となつ
た。 As described above, according to the method of the present invention, the coil winding shape of the steel strip can be improved, and in particular, the winding shape of the bottom portion, which has been extremely problematic in the past, can be improved.
The yield of finished products has improved, and it has also been effective in improving quality.
第１図は本発明法のピンチロール部の構成を示
す側面図。第２図は第１図の平面図。第３図は本
発明法の全体構成を示す概略図。
１：ピンチロール、２：流体圧シリンダ、３：
サイド・ガイド、４：制御装置、５：巻取マンド
レル、６：回転速度検出器、ａ：鋼帯。
FIG. 1 is a side view showing the configuration of the pinch roll section of the method of the present invention. FIG. 2 is a plan view of FIG. 1. FIG. 3 is a schematic diagram showing the overall configuration of the method of the present invention. 1: Pinch roll, 2: Fluid pressure cylinder, 3:
Side guide, 4: Control device, 5: Winding mandrel, 6: Rotation speed detector, a: Steel strip.
Claims (1)
流体圧シリンダを設け、該シリンダの一方または
両方を選択的に作動できるようにすること、ピン
チロールの回転数とマンドレルの回転数とからコ
イル巻取時のスリツプ率を求め、ピンチロールの
回転速度よりも材料速度が10〜50％の範囲で早く
なるように該ピンチロールの押え力を制御するこ
と、ピンチロール入側の両側にロード・セルを付
設したサイド・ガイドを設け、各ロード・セルに
よる検出値が共に同一になるように前記ピンチロ
ールの押え力をチルチング制御すること、材料ト
ツプがピンチロールに噛込むまでは押え力を強く
しさらにマンドレルに１巻した以後から前記制御
を開始することを特徴とするダウンコイラ用ピン
チロールの制御方法。1. Fluid pressure cylinders are provided on both sides of the support part of the pinch roll for the down coiler, so that one or both of the cylinders can be operated selectively, and the rotation speed of the pinch roll and the rotation speed of the mandrel are determined at the time of coil winding. The slip rate was determined, and the pressing force of the pinch roll was controlled so that the material speed was 10 to 50% faster than the rotation speed of the pinch roll, and load cells were attached on both sides of the input side of the pinch roll. A side guide is provided, and the pressing force of the pinch roll is controlled by tilting so that the values detected by each load cell are the same, and the pressing force is increased until the top of the material is bitten by the pinch roll, and then the pressing force is tightened until the top of the material is bitten by the pinch roll. A method for controlling a pinch roll for a down coiler, characterized in that the control is started after one winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19960781A JPS58100916A (en) | 1981-12-11 | 1981-12-11 | Controlling method for pinch roll for down coiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19960781A JPS58100916A (en) | 1981-12-11 | 1981-12-11 | Controlling method for pinch roll for down coiler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58100916A JPS58100916A (en) | 1983-06-15 |
| JPS628247B2 true JPS628247B2 (en) | 1987-02-21 |
Family
ID=16410669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19960781A Granted JPS58100916A (en) | 1981-12-11 | 1981-12-11 | Controlling method for pinch roll for down coiler |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58100916A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6261726A (en) * | 1985-09-09 | 1987-03-18 | Nippon Steel Corp | Winding pinch roll control method |
| JPS6293027A (en) * | 1985-10-21 | 1987-04-28 | Nippon Kokan Kk <Nkk> | Coiler for hot rolling |
| JPS63119930A (en) * | 1986-11-06 | 1988-05-24 | Nisshin Steel Co Ltd | Automatic control method for pressing force of pinch roll in take-up machine |
| DE19520709A1 (en) * | 1995-06-09 | 1996-12-12 | Schloemann Siemag Ag | Drivers for rolled strips |
| JP4395085B2 (en) * | 2005-02-07 | 2010-01-06 | 株式会社Ｐｆｕ | Sheet feeding device |
-
1981
- 1981-12-11 JP JP19960781A patent/JPS58100916A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58100916A (en) | 1983-06-15 |
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