JPH0651202B2 - Width reduction control device - Google Patents
Width reduction control deviceInfo
- Publication number
- JPH0651202B2 JPH0651202B2 JP60121091A JP12109185A JPH0651202B2 JP H0651202 B2 JPH0651202 B2 JP H0651202B2 JP 60121091 A JP60121091 A JP 60121091A JP 12109185 A JP12109185 A JP 12109185A JP H0651202 B2 JPH0651202 B2 JP H0651202B2
- Authority
- JP
- Japan
- Prior art keywords
- reduction
- strip
- width
- width reduction
- gap
- 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 - Lifetime
Links
- 238000005096 rolling process Methods 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 description 4
- 230000002950 deficient Effects 0.000 description 2
- 238000007688 edging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 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
- B21B37/48—Tension control; Compression control
- B21B37/50—Tension control; Compression control by looper control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B1/224—Edge rolling of flat products
-
- 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
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、幅圧下制御装置に関するものである。TECHNICAL FIELD The present invention relates to a width reduction control device.
［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 when there is ear extension, and it is difficult to apply proper reduction. .
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、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、
前記ルーパーにストリップの張力を検出する張力計を設
け、且つ該張力計の信号に基づいて前段スタンドのロー
ルギャップ調整機構へギャップ修正信号を送るギャップ
制御器と、前記張力計の信号に基づいて前記竪ロールの
圧下機構を圧下量修正信号を送る圧下制御器とを備えた
構成としている。[Means for Solving Problems] The present invention relates to a width reduction device in which a pair of vertical rolls are arranged between rolling mill stands for applying tension to a strip by a looper to perform width reduction of the strip. ,
The looper is provided with a tensiometer that detects the tension of the strip, and a gap controller that sends a gap correction signal to the roll gap adjusting mechanism of the front stand based on the signal of the tensiometer, and the gap controller based on the signal of the tensiometer. The vertical roll reduction mechanism is configured to include a reduction controller that sends a reduction amount correction signal.
［作用］ 従って、ストリップに左右で張力差が発生すると、前段
圧延機スタンドのロールギャップが修正されると共に、
竪ロールの圧下量が夫々調整される。[Operation] Therefore, when a tension difference occurs on the left and right of the strip, the roll gap of the stand of the preceding rolling mill is corrected, and
The reduction amount of the vertical roll is adjusted respectively.
［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、4a,4bは前段ス
タンド１の圧下シリンダ5a,5bを作動するサーボ弁、６
はポンプ、７はスタンド1,1′間を走行するストリップ
８に張力を付与するためのルーパー、9a,9bはストリッ
プ８の張力を荷重として検出するロードセル、10a,10b
はエッジングロールとしてルーパー７の下流位置に配設
した竪ロール、11a,11bは竪ロール10a,10bによるエッジ
ングを行わすための幅圧下シリンダ、12a,12bは幅圧下
シリンダ11a,11bを作動するサーボ弁である。又、13は
前記記右のロードセル9a,9bで検出した値の差を求める
演算器、14は該演算器13の値に基づいてサーボ弁4a,4b
を駆動するギャップ制御器、15は同様に前記演算器13の
値に基づいてサーボ弁12a,12bを駆動する圧下制御器で
ある。In FIGS. 1 and 2, 1 and 1 ′ are rolling mill stands equipped with work rolls 2 and retaining rolls 3, 4 a and 4 b are servo valves for operating the reduction cylinders 5 a and 5 b of the former stand 1, and 6
Is a pump, 7 is a looper for applying tension to the strip 8 traveling between the stands 1 and 1 ', 9a and 9b are load cells for detecting the tension of the strip 8 as a load, and 10a and 10b
Is a vertical roll arranged downstream of the looper 7 as an edging roll, 11a and 11b are width reduction cylinders for edging by the vertical rolls 10a and 10b, and 12a and 12b are servos that operate the width reduction cylinders 11a and 11b. It is a valve. Further, 13 is an arithmetic unit for obtaining the difference between the values detected by the load cells 9a, 9b on the right side, and 14 is a servo valve 4a, 4b based on the value of the arithmetic unit 13.
Similarly, reference numeral 15 is a gap controller for driving the servo valves 12a and 12b based on the value of the arithmetic unit 13.
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８はルーパー７によって張力を付与された状態
で、竪ロール10a,10bにより幅圧下される。In such a configuration, the strip 8 running between the stands 1 and 1'is subjected to width reduction by the vertical rolls 10a and 10b while being tensioned by the looper 7.
ここで、例えば、ストリップ８に片伸びが生じている場
合、この片伸びはルーパー７に取付けたロードセル9a,9
b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10a,10bによりストリップ８に対して幅圧下を
行うと、片伸びが発生した部分に座屈が発生し適正な圧
下を掛けられない。Here, for example, when the strip 8 has a one-sided extension, this one-sided extension is caused by the load cells 9a, 9 attached to the looper 7.
The difference between the left and right tensions is detected by the calculator 13 via b. When the strip 8 is subjected to the width reduction with the vertical rolls 10a and 10b as it is in the state where the one-sided extension occurs, buckling occurs in the portion where the one-sided extension occurs, and an appropriate reduction cannot be applied. .
そこで、演算器13からの信号を基にギャップ制御器14で
ギャップ修正量を演算し、前段スタンド１のロールギャ
ップの狭い側のサーボ弁4a又は4bを駆動することによ
り、圧下シリンダ5a又は5bを作動させてロールギャップ
を調整し、以後の片伸びが発生しないよう（幅方向の張
力を均一化するよう）フィードバック制御を行う。Therefore, the gap controller 14 calculates the gap correction amount based on the signal from the calculator 13, and drives the servo valve 4a or 4b on the narrower roll gap side of the front stand 1 to drive the reduction cylinder 5a or 5b. It is operated to adjust the roll gap, and feedback control is performed so that the subsequent half stretch does not occur (to make the tension in the width direction uniform).
一方、前記演算器13からの信号は圧下制御器15にも同時
に入力され、該圧下制御器15にてサーボ弁12a,12bを駆
動し、幅圧下シリンダ11a,11bの作動を介して竪ロール1
0a又は10bを後退するよう圧下調整し、ストリップ８に
座屈が発生しないようフィードホワード制御を行う。On the other hand, the signal from the arithmetic unit 13 is also input to the reduction controller 15 at the same time, the servo valves 12a and 12b are driven by the reduction controller 15, and the vertical roll 1 is operated through the operation of the width reduction cylinders 11a and 11b.
The pressure is adjusted so that 0a or 10b is retracted, and feed forward control is performed so that buckling does not occur in the strip 8.
尚、本発明は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種変更を加え得る
ことは勿論である。It should be noted that the present invention is not limited to the above-mentioned embodiments, and it is needless to say that various modifications 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、形状不良に伴う
左右の張力差に基づいて、前段スタンドのロールギャッ
プと竪ロールの圧下量（位置）とが調整されるので、ス
トリップ座屈、絞り込みが防止でき、更に板幅精度を向
上できてエッジドロップの改善、端面の矩形化を図り得
る、等の優れた効果を奏し得る。[Effects of the Invention] As described above, according to the present invention, the roll gap of the front stand and the reduction amount (position) of the vertical roll are adjusted based on the difference in tension between the left and right due to the defective shape. It is possible to prevent strip buckling and narrowing, further improve the plate width accuracy, improve edge drop, and rectangularize the end face, and other excellent effects.
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矢視図である。 1,1′は圧延機スタンド、５は圧下シリンダ、７はルー
パー、８はストリップ、9a,9bはロードセル、10a,10bは
竪ロール、11a,11bは幅圧下シリンダ、13は演算器、14
はギャップ制御器、15は圧下制御器を示す。FIG. 1 is a schematic side view of a width reduction control device of the present invention, and FIG. 2 is a view taken along the line II-II of FIG. 1, 1'is a rolling mill stand, 5 is a reduction cylinder, 7 is a looper, 8 is a strip, 9a and 9b are load cells, 10a and 10b are vertical rolls, 11a and 11b are width reduction cylinders, 13 is a calculator, 14
Is a gap controller, and 15 is a reduction controller.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 藤島 郁夫 神奈川県横浜市磯子区新中原町１番地 石 川島播磨重工業株式会社横浜第二工場内 (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) Ikuo Fujishima, Ikuo Fujishima 1 Shinshinarahara-cho, Isogo-ku, Yokohama 3-chome, Nippon Steel Co., Ltd., Nagoya Steel Works (72) Inventor, Yasushi Igarashi 5-chome, Tokai-cho, Tokai-shi, Aichi Pref., Nippon Steel Co., Ltd., Nagoya Steel Works
Claims (1)
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、前記ルーパーにストリップの左右張力差を
検出する張力計を設け、且つ該張力計の信号に基づいて
前段スタンドのロールギャップ調整機構へギャップ修正
信号を送るギャップ制御器と、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。1. A width reduction device for reducing the width of a strip by arranging at least a pair of vertical rolls between stands of a rolling mill for applying a tension to the strip by a looper. A gap controller which is provided with a tensiometer for detecting a difference, and sends a gap correction signal to a roll gap adjusting mechanism of the front stand based on the signal of the tensiometer, and a vertical roll pressing mechanism based on the signal of the tensiometer And a reduction controller that sends a reduction amount correction signal to the width reduction control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60121091A JPH0651202B2 (en) | 1985-06-04 | 1985-06-04 | Width reduction control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60121091A JPH0651202B2 (en) | 1985-06-04 | 1985-06-04 | Width reduction control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61279307A JPS61279307A (en) | 1986-12-10 |
| JPH0651202B2 true JPH0651202B2 (en) | 1994-07-06 |
Family
ID=14802649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60121091A Expired - Lifetime JPH0651202B2 (en) | 1985-06-04 | 1985-06-04 | Width reduction control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0651202B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63309306A (en) * | 1987-06-11 | 1988-12-16 | Hitachi Ltd | Rolling equipment and rolling method for continuously cast slabs |
-
1985
- 1985-06-04 JP JP60121091A patent/JPH0651202B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61279307A (en) | 1986-12-10 |
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