JPH0677768B2 - Width reduction method and its control device - Google Patents
Width reduction method and its control deviceInfo
- Publication number
- JPH0677768B2 JPH0677768B2 JP61111481A JP11148186A JPH0677768B2 JP H0677768 B2 JPH0677768 B2 JP H0677768B2 JP 61111481 A JP61111481 A JP 61111481A JP 11148186 A JP11148186 A JP 11148186A JP H0677768 B2 JPH0677768 B2 JP H0677768B2
- Authority
- JP
- Japan
- Prior art keywords
- strip
- width reduction
- roll
- tension
- reduction
- 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 - Fee Related
Links
- 238000000034 method Methods 0.000 title claims description 6
- 238000003825 pressing Methods 0.000 claims description 7
- 238000005096 rolling process Methods 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000002950 deficient Effects 0.000 description 2
- 238000007688 edging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
- B21B13/06—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged vertically, e.g. edgers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B41/00—Guiding, conveying, or accumulating easily-flexible work, e.g. wire, sheet metal bands, in loops or curves; Loop lifters
- B21B41/08—Guiding, conveying, or accumulating easily-flexible work, e.g. wire, sheet metal bands, in loops or curves; Loop lifters without overall change in the general direction of movement of the work
- B21B41/10—Loop deflectors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、幅圧下方法及びその制御装置に関するもので
ある。TECHNICAL FIELD The present invention relates to a width reduction method and a controller thereof.
［従来の技術］ 一般に、仕上圧延機スタンド間にエッジャーを設けてス
トリップの幅圧下を行う場合、ルーパーによってストリ
ップに張力を与えて座屈を防止するようにしている。[Prior Art] Generally, when an edger is provided between stands of a finish rolling mill to reduce the width of a strip, a looper applies tension to the strip to prevent buckling.
［発明が解決しようとする問題点］ しかしながら、斯かる従来方式においては、ストリップ
に形状不良、特に耳伸びが存在していると座屈を起し易
く、適正な幅圧下を掛け難い問題があった。[Problems to be Solved by the Invention] However, in such a conventional method, there is a problem that buckling is likely to occur when a strip has a defective shape, particularly, a selvage is present, and it is difficult to apply an appropriate width reduction. It was
本発明はこのような実情に鑑みなしたものである。The present invention has been made in view of such circumstances.
［問題点を解決するための手段］ 本発明は、ルーパーによってストリップに張力を付与す
る圧延機スタンド間に、少なくとも一対の竪ロールを配
設してストリップの幅圧下を行うようにした幅圧下装置
において、ストリップに発生する左右張力の差に基づい
てストリップの押えロールの左右幅方向高さを調整する
ことにより、常に一定の圧下量を維持することを特徴と
する幅圧下方法にかかるものであり、更に、同時に竪ロ
ールの幅圧下量を調整することを特徴とする幅圧下方法
にかかるものであり、及び、前記ルーパーに設置された
ストリップの張力を検出する張力計の信号に基づいて押
えロールのロール高さ調整機構へ左右高さ修正信号を送
る押えロール高さ制御器と、前記張力計の信号に基づい
て前記竪ロールの圧下機構へ圧下量修正信号を送る圧下
制御器とを備えたことを特徴とする幅圧下制御装置にか
かるものである。[Means for Solving the Problems] According to the present invention, at least a pair of vertical rolls are arranged between rolling mill stands that apply tension to a strip by a looper to perform width reduction of the strip. In the above, the width reduction method is characterized in that a constant reduction amount is always maintained by adjusting the left-right width direction height of the pressing roll of the strip based on the difference between the left and right tensions generated in the strip. Further, the present invention relates to a width reduction method characterized in that the width reduction amount of the vertical roll is adjusted at the same time, and the pressing roll is based on a signal from a tensiometer for detecting the tension of the strip installed on the looper. Adjusting the amount of reduction to the vertical roll reduction mechanism based on the signal from the presser roll height controller and the tension meter, which sends a left / right height correction signal to the roll height adjustment mechanism. The width reduction control device is provided with a reduction controller that sends a signal.
［作用］ 従って、ストリップに左右で張力差が発生すると、押え
ロールのロールの左右幅方向高さが修正され、更に竪ロ
ールの圧下量が夫々調整される。[Operation] Therefore, when a tension difference is generated on the left and right of the strip, the height of the press roll in the left-right width direction is corrected, and further the amount of reduction of the vertical roll is adjusted.
［実施例］ 以下、図面を参照して本発明の実施例を説明する。Embodiments Embodiments of the present invention will be described below with reference to the drawings.
第１図及び第２図において、1,1′は作業ロール２と控
えロール３とを備えた圧延機スタンド、４はスタンド1,
1′間を走行するストリップ５に張力を付与するための
ルーパー、6a,6bはエッジングロールとしてルーパー４
の下流位置に配設した竪ロール、7a,7bは竪ロール6a,6b
によるエッジングを行わすための幅圧下シリンダ、8a,8
bは幅圧下シリンダ7a,7bを作動するサーボ弁である。In FIGS. 1 and 2, 1, 1 ′ is a rolling mill stand equipped with a work roll 2 and a retaining roll 3, 4 is a stand 1,
Loopers for applying tension to the strip 5 running between 1 ', 6a and 6b as edging rolls.
Vertical rolls 7a, 7b arranged downstream of the vertical rolls 6a, 6b
Width reduction cylinders for edging with 8a, 8
Reference numeral b is a servo valve that operates the width reduction cylinders 7a and 7b.
前記ルーパー４と竪ロール6a,6bとの間に、ストリップ
５に前記ルーパー４と反対方向の張力を付与する押えロ
ール９を配設し、該押えロール９の両端軸に該押えロー
ル９の左右幅方向高さを変えるためのシリンダ10a,10b
を連結し、前記ルーパー４のルーパーロール11支持部に
ストリップ５の張力を荷重として検出するロードセル12
a,12bを設け、該左右のロードセル12a,12bで検出した荷
重信号を演算器13に送るようにし、該演算器13で求めら
れた張力差信号を押えロール高さ制御器14に送り、前記
押えロール９の左右幅方向高さを変えるためのシリンダ
10a,10bの突出量調整用のサーボ弁15a,15bを駆動するよ
うにしてある。更に、前記演算器13で求められた張力差
信号を幅圧下制御器16に送り、前記幅圧下シリンダ7a,7
b作動用のサーボ弁8a,8bを駆動するようにしてある。Between the looper 4 and the vertical rolls 6a, 6b, a pressing roll 9 for applying a tension to the strip 5 in the opposite direction to the looper 4 is arranged, and the left and right sides of the pressing roll 9 are attached to both end shafts of the pressing roll 9. Cylinders 10a and 10b for changing the height in the width direction
And a load cell 12 for detecting the tension of the strip 5 as a load on the support portion of the looper roll 11 of the looper 4.
a, 12b are provided, the load signals detected by the left and right load cells 12a, 12b are sent to the calculator 13, and the tension difference signal obtained by the calculator 13 is sent to the presser roll height controller 14, Cylinder for changing the left-right width direction height of the presser roll 9
The servo valves 15a and 15b for adjusting the protrusion amount of 10a and 10b are driven. Further, the tension difference signal obtained by the arithmetic unit 13 is sent to the width reduction controller 16, and the width reduction cylinders 7a, 7
b The servo valves 8a and 8b for actuation are driven.
斯かる構成において、スタンド1,1′間を走行するスト
リップ５はルーパー４によって張力を付与された状態
で、竪ロール6a,6bにより幅圧下される。In such a configuration, the strip 5 running between the stands 1 and 1'is width-reduced by the vertical rolls 6a and 6b while being tensioned by the looper 4.
ここで、例えば、ストリップ５に片伸びが生じている場
合、この片伸びはルーパー４に取付けたロードセル12a,
12bを介し演算器13によって左右の張力差として検出さ
れる。このように片伸びが発生している状態で、そのま
ま竪ロール6a,6bによりストップ５に対して幅圧下を行
うと、例えば第３図において二点鎖線で示すように片伸
びが発生した部分の張力が弱く座屈が発生し適正な圧下
を掛けられない。Here, for example, when the strip 5 has a one-sided extension, this one-sided extension is caused by the load cell 12a attached to the looper 4,
The difference between the left and right tensions is detected by the calculator 13 via 12b. In such a state where the unilateral stretch is generated, if the vertical rolls 6a and 6b are used to reduce the width of the stop 5 as it is, for example, as shown by a chain double-dashed line in FIG. Since the tension is weak and buckling occurs, proper reduction cannot be applied.
そこで、演算器13からの信号を基に押えロール高さ制御
器14で押えロール９の左右幅方向高さ修正量を演算し、
張力の低い側のシリンダ10aのサーボ弁15aを駆動するこ
とにより、シリンダ10aを作動させて押えロール９の高
さを第３図において右下がりとなるよう調整し、幅方向
の張力を均一化する制御を行う。Therefore, based on the signal from the calculator 13, the presser roll height controller 14 calculates the right and left widthwise height correction amount of the presser roll 9,
By driving the servo valve 15a of the cylinder 10a on the low tension side, the cylinder 10a is actuated to adjust the height of the presser roll 9 so that the pressure roll 9 is lowered to the right in FIG. 3, and the tension in the width direction is made uniform. Take control.
一方、前記演算器13からの信号は幅圧下制御器16にも同
時に入力され、該幅圧下制御器16にてサーボ弁8a,8bを
駆動し、幅圧下シリンダ7a,7bの作動を介して竪ロール6
a又は6bを後退するよう圧下調整し、ストリップ５に座
屈が発生しないよう制御する。On the other hand, the signal from the arithmetic unit 13 is also input to the width reduction controller 16 at the same time, and the width reduction controller 16 drives the servo valves 8a and 8b to operate the width reduction cylinders 7a and 7b vertically. Roll 6
The a or 6b is adjusted so as to retract, and the strip 5 is controlled so as not to buckle.
尚、本発明の前記実施例にのみ限定されるものではな
く、本発明の要旨を逸脱しない限り種々変更を加え得る
ことは勿論である。It is needless to say that the present invention is not limited to the above-described embodiment of the present invention, and various changes can be made without departing from the gist of the present invention.
［発明の効果］ 以上説明したように、本発明によれば、下記の如き種々
の優れた効果を発揮する。[Effects of the Invention] As described above, according to the present invention, various excellent effects as described below are exhibited.
（Ｉ）ストリップの形状不良に伴う左右の張力差に基づ
いて、竪ロール入側のストリップの傾きを調整するよう
にしたので、エッジャーギャップ内のストリップの傾斜
を防止することができる。(I) Since the inclination of the strip on the vertical roll entrance side is adjusted based on the difference in tension between the left and right due to the defective shape of the strip, the inclination of the strip in the edger gap can be prevented.
（II）ストリップの座屈を防止することができる。(II) Buckling of the strip can be prevented.
（III）ストリップの尻抜時の蛇行、絞り込みを防止す
ることができる。(III) It is possible to prevent meandering and narrowing when strip strips are pulled out.
（IV）板幅方向張力分布の修正を行うことができ、スト
リップの蛇行を防止することができる。(IV) It is possible to correct the tension distribution in the plate width direction and prevent the strip from meandering.
第１図は本発明の幅圧下制御装置の概略側面図、第２図
は第１図のII−II矢視図、第３図は第２図のIII−III方
向矢視図である。 1,1′は圧延機スタンド、４はルーパー、５はストリッ
プ、6a,6bは竪ロール、7a,7b8幅圧下シリンダ、９は押
えロール、10a,10bはシリンダ、12a,12bはロードセル、
13は演算器、14は押えロール高さ制御器、15a,15bはサ
ーボ弁、16は幅圧下制御器を示す。1 is a schematic side view of the width reduction control device of the present invention, FIG. 2 is a view taken along the line II-II of FIG. 1, and FIG. 3 is a view taken along the line III-III of FIG. 1, 1'is a rolling mill stand, 4 is a looper, 5 is a strip, 6a and 6b are vertical rolls, 7a and 7b8 width reduction cylinders, 9 are press rolls, 10a and 10b are cylinders, 12a and 12b are load cells,
13 is a calculator, 14 is a presser roll height controller, 15a and 15b are servo valves, and 16 is a width reduction controller.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 河村 国夫 愛知県東海市東海町５丁目３番地 新日本 製鐵株式會社名古屋製鐵所内 (72)発明者 五十嵐 泰生 愛知県東海市東海町５丁目３番地 新日本 製鐵株式會社名古屋製鐵所内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kunio Kawamura 5-3 Tokai-cho, Tokai-shi, Aichi Pref., Nippon Steel Co., Ltd. Nagoya Works (72) Inventor Yasushi Igarashi 5-3 Tokai-cho, Tokai-shi, Aichi Address Shin Nippon Steel Co., Ltd. Nagoya Steel Works
Claims (3)
する圧延機スタンド間に、少なくとも一対の竪ロールを
配設してストリップの幅圧下を行うようにした幅圧下装
置において、ストリップに発生する左右張力の差に基づ
いてストリップの押えロールの左右幅方向高さを調整す
ることにより、常に一定の圧下量を維持することを特徴
とする幅圧下方法。1. In a width reduction device in which at least a pair of vertical rolls are disposed between rolling mill stands for applying tension to the strip by a looper to perform width reduction of the strip, the lateral tension generated in the strip is reduced. A width reduction method characterized in that a constant reduction amount is always maintained by adjusting the height of the strip pressing roll in the left-right width direction based on the difference.
する圧延機スタンド間に、少なくとも一対の竪ロールを
配設してストリップの幅圧下を行うようにした幅圧下装
置において、ストリップに発生する左右張力差がある値
以上になった場合に、ストリップの押えロールの左右高
さを調整すると同時に竪ロールの幅圧下量を調整するこ
とを特徴とする幅圧下方法。2. In a width reduction apparatus in which at least a pair of vertical rolls are disposed between rolling mill stands for applying tension to the strip by a looper to perform width reduction of the strip, a difference in lateral tension between the strips is generated. The width reduction method is characterized in that, when the strip pressure roll exceeds a certain value, the left and right heights of the strip pressing roll are adjusted and the width reduction amount of the vertical roll is adjusted at the same time.
する圧延機スタンド間に、少なくとも一対の竪ロールを
配設してストリップの幅圧下を行うようにした幅圧下装
置において、前記ルーパーに設置されたストリップの左
右張力差を検出する張力計の信号に基づいて押えロール
のロール高さ調整機構へ左右高さ修正信号を送る押えロ
ール高さ制御器と、前記張力計の信号に基づいて前記竪
ロールの圧下機構へ圧下量修正信号を送る圧下制御器と
を備えたことを特徴とする幅圧下制御装置。3. A width reduction apparatus in which at least a pair of vertical rolls are disposed between rolling mill stands for applying tension to the strip by a looper to perform width reduction of the strip, and the strip installed on the looper. The presser roll height controller that sends a horizontal height correction signal to the roll height adjustment mechanism of the presser roll based on the signal of the tension meter that detects the difference in tension between the right and left of the vertical roll of the vertical roll based on the signal of the tension meter. A width reduction control device comprising a reduction controller that sends a reduction amount correction signal to a reduction mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61111481A JPH0677768B2 (en) | 1986-05-15 | 1986-05-15 | Width reduction method and its control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61111481A JPH0677768B2 (en) | 1986-05-15 | 1986-05-15 | Width reduction method and its control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62267010A JPS62267010A (en) | 1987-11-19 |
| JPH0677768B2 true JPH0677768B2 (en) | 1994-10-05 |
Family
ID=14562348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61111481A Expired - Fee Related JPH0677768B2 (en) | 1986-05-15 | 1986-05-15 | Width reduction method and its control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0677768B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0721813B1 (en) * | 1995-01-16 | 1999-01-27 | MANNESMANN Aktiengesellschaft | Device for guiding hot-rolled strip through an inductor |
| CN116586430B (en) * | 2023-05-16 | 2026-04-14 | 中色科技股份有限公司 | Method for welding and rolling difficult-to-deform metal sheet |
-
1986
- 1986-05-15 JP JP61111481A patent/JPH0677768B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62267010A (en) | 1987-11-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |