JPS61129211A - Shape control device in hot continuous rolling mill - Google Patents

Shape control device in hot continuous rolling mill

Info

Publication number
JPS61129211A
JPS61129211A JP59253406A JP25340684A JPS61129211A JP S61129211 A JPS61129211 A JP S61129211A JP 59253406 A JP59253406 A JP 59253406A JP 25340684 A JP25340684 A JP 25340684A JP S61129211 A JPS61129211 A JP S61129211A
Authority
JP
Japan
Prior art keywords
roll
crown
control device
shape control
rolling mill
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.)
Pending
Application number
JP59253406A
Other languages
Japanese (ja)
Inventor
Kaname Nakagawa
中川　要
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP59253406A priority Critical patent/JPS61129211A/en
Publication of JPS61129211A publication Critical patent/JPS61129211A/en
Pending legal-status Critical Current

Links

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
    • B21B37/30—Control of flatness or profile during rolling of strip, sheets or plates using roll camber control
    • B21B37/32—Control of flatness or profile during rolling of strip, sheets or plates using roll camber control by cooling, heating or lubricating the rolls
    • 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
    • B21B1/24—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 in a continuous or semi-continuous process
    • B21B1/26—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 in a continuous or semi-continuous process by hot-rolling, e.g. Steckel hot mill
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B28/00—Maintaining rolls or rolling equipment in effective condition
    • B21B28/02—Maintaining rolls in effective condition, e.g. reconditioning
    • B21B28/04—Maintaining rolls in effective condition, e.g. reconditioning while in use, e.g. polishing or grinding while the rolls are in their stands

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)

Abstract

PURPOSE:To improve the accuracy of shape control by determining the optimum roll crown in accordance with the signals from a shape control device and crown meter then correcting the crown with roll polishers and roll heaters. CONSTITUTION:The roll polishers 14 are provided at two points on the surface of an upper work roll and the roll heaters 15 are respectively disposed to an upper backup roll. Each polisher 14 consists of a grinding stone and is pressed and energizedto the assigned position of the roll. The optimum roll crown quantity is calculated in accordance with the signals from the shape control device 12 and the roll crown meter 14 and the crown correction quantity is calculated. Each roll is polished by the polishers 14 in accordance with the correction quantity and the definiency is made up by the heaters 15, by which the optimum roll crown is obtd. The quick dealing with the abrupt change of the crown is made possible by the above-mentioned method and therefore the accuracy of the shape control is improved.

Description

【発明の詳細な説明】 ［産業上の利用分野］ この発明は熱間Ｍ線圧延機における圧延材料の形状制御
をする装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a device for controlling the shape of rolled material in a hot M-wire rolling mill.

［従来の技術］ 従来からこの種の装置の開発が進められているが、特に
温度に伴なうロールクラウンの変化をクーラント量によ
って制御するものが報告されている（特公昭５Ｂ−３０
０８１号公報）。これを第３図に基づいて説ＥｒＡｙｓ
、ｙ、（１）、（１）は上下バックアップロール（２）
、（２）とともに圧延材料（３）を熱間圧延する上下圧
延ワークロール、（４）はワークロール（１）。[Prior Art] Development of this type of device has been progressing for some time, and one in which the change in roll crown caused by temperature is controlled by the amount of coolant has been reported (Japanese Patent Publication No. 5B-30
Publication No. 081). This can be explained based on Figure 3.
, y, (1), (1) are upper and lower backup rolls (2)
, (2) and upper and lower rolling work rolls for hot rolling the rolling material (3); (4) is the work roll (1);

（１）、及びバックアップロール（２）、（２）の各ロ
ールクラウンを検出器（５）　、（５）　、（５）　、
（５）によって検出し表示するクラウンメータ、（８）
　、（６）　、（６）　、（Ｅｉ）は上記各ロール（１
）、（１）　、（２）　、（２）の軸方向に沿ってクー
ラントを付与して冷却する冷却装置、（７）は各冷却装
置（６）を冷却パターンに沿い制御する冷却制御装ｆｉ
、（８）は圧延荷重検出器（９）の信号を受信するとと
ももにロールベンディング装置（１０）ニペンディング
圧力を指令するロールベンディング制御装置、（１１）
は圧延材料（３）の圧延形状を認識する形状認識装置で
あり、これらロールクラウンメータ（４〕、冷却制御装
置（７）、ベルディング制御装置（８）及び形状認識装
置（１１）はいずれも形状制御演算装置（１２）に接続
されている。(1), and the backup rolls (2), (2), each roll crown is detected by a detector (5), (5), (5),
(5) Crown meter detected and displayed by (8)
, (6) , (6) , (Ei) are each of the above rolls (1
), (1), (2), (2) is a cooling device that applies coolant along the axial direction for cooling, and (7) is a cooling control device that controls each cooling device (6) along a cooling pattern.
, (8) is a roll bending control device which receives the signal from the rolling load detector (9) and commands the nipping pressure of the roll bending device (10); (11)
is a shape recognition device that recognizes the rolled shape of the rolled material (3), and these roll crown meter (4), cooling control device (7), belting control device (8), and shape recognition device (11) are all It is connected to the shape control calculation device (12).

したがって形状認識装置（１１）によって認識された形
状が信号として形状制御演算装置（１２）に入力すると
、最適なロールクラウンを決定し、この決定値に基づい
て冷却制御装置（６）およびベンディング制御装置（８
）？介してクーラント量及びベンディング圧力を適宜補
正するようにしている。特に圧延時に伴なう発熱によっ
て各ロール（１）、（＋、）。Therefore, when the shape recognized by the shape recognition device (11) is input as a signal to the shape control calculation device (12), the optimum roll crown is determined, and based on this determined value, the cooling control device (6) and the bending control device (8
)? The amount of coolant and bending pressure are corrected as appropriate. In particular, each roll (1), (+,) due to the heat generated during rolling.

（２）　、　Ｃ２）に熱膨張をきたすため、ロールクラ
ウンが変化することとなり、このロールクラウンを制御
するために、クーラント量を各ロール（１）、（１）。(2), C2) causes thermal expansion, which causes the roll crown to change, and in order to control this roll crown, the amount of coolant is adjusted to each roll (1), (1).

（２）　、（２）の軸方向に平坦あるいは２次曲線状に
制御するようにし、クーラント量が２次曲線であればロ
ールベンディン装置（８）によってロールのたわみ量を
補正することによって良好な圧延形状を得るようにして
いる。(2) The axial direction of (2) is controlled flatly or in a quadratic curve, and if the coolant amount is a quadratic curve, the amount of deflection of the roll is corrected by the roll bending device (8). The aim is to obtain a rolled shape.

［発明が解決しようとする問題点コ しかしながら、従来の上記装置では、クーラント量を制
御するものであることから、クーランｉ・量を最大ある
いは最小にした場合、もはやその範囲外のロールクラウ
ンを制御することができないという問題点があった。ま
たクーラント量をロール軸方向に分布を変化させるにも
、クーラントは噴射ノズメからある広がりをもって噴出
するため、ロール表面へのクーラントの噴射量をきめ細
かく制御することができず、ひいてはロールクラウンを
制御するにも限界があった。[Problems to be solved by the invention] However, since the conventional device described above controls the amount of coolant, when the amount of coolant i is maximized or minimized, it is no longer possible to control the roll crown that is outside of that range. The problem was that it could not be done. Furthermore, when changing the distribution of the coolant amount in the roll axis direction, the coolant is ejected from the injection nozzle with a certain spread, making it impossible to finely control the amount of coolant sprayed onto the roll surface, which in turn makes it difficult to control the roll crown. There were also limits.

この発明は以上の問題点を解決するためになされたもの
で、ロールクラウンを従来にも増して微調整ができるよ
うにし、圧延形状をさらに良好ならしめることを目的と
している。This invention has been made to solve the above problems, and aims to make it possible to finely adjust the roll crown more than ever before, and to improve the rolled shape.

［問題点を解決するための手段］ この発明は形状認識装置からの信号とクラウンメータか
の信号とに基づき、最適なロールクラウンを求め、この
補正量をロール研磨装置によって研磨補正するとともに
、この研磨補正をすることができないとき、あるいは研
磨補正の足りない時はロール加熱装置によって局所的に
ロールを加熱し、最適なロールクラウン・と得るように
した熱間連続圧延機における形状制ｍ装置を提案するも
のである。[Means for Solving the Problems] The present invention determines the optimum roll crown based on the signal from the shape recognition device and the signal from the crown meter, and performs polishing correction on this correction amount using a roll polishing device. When polishing correction cannot be performed or polishing correction is insufficient, we use a shape controlling device in a hot continuous rolling mill that locally heats the roll using a roll heating device to obtain the optimum roll crown. This is a proposal.

［作用］ この発明によれば、ロール摩耗や熱膨張によるロールク
ラウンに変化があっても常に最適なロールクラウンによ
って良好な圧延形状を得ることができる。[Function] According to the present invention, even if the roll crown changes due to roll wear or thermal expansion, a good rolled shape can always be obtained with the optimum roll crown.

［実施例〕 以下第１図及び第２図に示す実施例に基づき、従来と同
−又は相当部分には同一符号を付しその説明は省略し、
この発明の特徴を中心に説明する。第１図はワークロー
ル（１）、Ｃ１）とバックアップロール（２）　、　（
２）とが圧延材料（３）の進行方向に３基直列に配置さ
れた圧延スタンドから成る熱間連続圧延機を示したもの
で、図において、（１３）は各ワークロール（１）、（
１）に対して配置されたロールクラウンメータ（４）、
（４）からの信号と形状制御演算装置（１２）のロール
クラウン指令信号からロールの研磨位置及び研磨策を演
算、決定し、その演算値信号をロール研磨装置（１４）
、（１４）及びロール加熱装置（１５）、（１５）に指
令信号として出方するロールクラウン制御装置である。[Example] Based on the example shown in FIG. 1 and FIG. 2 below, the same or equivalent parts as in the prior art are given the same reference numerals, and the explanation thereof will be omitted.
The features of this invention will be mainly explained. Figure 1 shows work rolls (1), C1) and backup rolls (2), (
2) shows a hot continuous rolling mill consisting of three rolling stands arranged in series in the direction of progress of the rolled material (3), and in the figure, (13) shows each work roll (1), (
1) a roll crown meter (4) placed against the
The roll polishing position and polishing strategy are calculated and determined from the signal from (4) and the roll crown command signal of the shape control calculation device (12), and the calculated value signal is sent to the roll polishing device (14).
, (14) and the roll heating device (15), a roll crown control device that outputs a command signal as a command signal.

これを具体的に図示したものが第２図で、同図によれば
、上ワークロール（１）表面２ケ所にロール研磨装置（
１４）。A concrete illustration of this is shown in Figure 2, which shows that roll polishing devices (
14).

（１４）が配置され、この研磨装置（１４）はロール（
１）の予め指定された位）置に押圧付勢されて取付けら
れた砥石からなるものであり、また、上ワークロール（
１）又は上バツクアンプロール（，２）にはあらかじ指
定された位置に取付けられ局所的にこれらのロール（１
）、（２）を加熱するようになされてぃしたがって形状
制御装置（１２）とロールクラウンメータ（４）からの
信号に基づいて演算されたロールクラウン補正量に従っ
て各ロールを研Ｍ装置（１４）にって研磨し、その不足
分はロール加熱装置（１５）によって各ロールを局所的
に加熱して最適なロールクラウンを得るようにすること
ができる。(14) is arranged, and this polishing device (14) has a roll (
It consists of a grinding wheel that is mounted under pressure at a pre-specified position (1), and the upper work roll (
1) or upper backup rolls (, 2) are attached at pre-specified positions and these rolls (1) are attached locally.
), (2). Therefore, the M device (14) grinds each roll according to the roll crown correction amount calculated based on the signals from the shape control device (12) and the roll crown meter (4). The deficit can be made by locally heating each roll using a roll heating device (15) to obtain an optimum roll crown.

なお、上記実施例ではロール研磨装置（１４）をワーク
ロール（１）に適用したものについて説明したが、これ
をバックアップロール（２）に対して適用してもよく、
またロール加熱装置（１５）をロール冷却装置とともに
使用してもよい。In the above embodiment, the roll polishing device (14) was applied to the work roll (1), but it may also be applied to the backup roll (2).
The roll heating device (15) may also be used together with the roll cooling device.

〔発明の効果〕〔Effect of the invention〕

以上この発明によれば、圧延荷重の変化による急ａなロ
ールクラウンの変化に対しても迅速に対応することがで
き高精度の形状制御を行なうこと゛　ができる。As described above, according to the present invention, it is possible to quickly respond to sudden changes in the roll crown due to changes in rolling load, and to perform highly accurate shape control.

【図面の簡単な説明】[Brief explanation of drawings]

Ｓ１図は本発明に係る圧延機における形状制御装置の一
実施例の要部を示す構成図、第２図は木実雄側装置の概
念図、第３図は従来の装置を示す第１図相当図である。 図において、（１）はワークロール、 （２）はバックアップロール、 （１３）はロールクラウン制御装置、 （１４）はロール研磨装置、 （１５）はロール加熱装置。 なお、図中、同一符号は同−又は相当部分を示す。Figure S1 is a configuration diagram showing the essential parts of an embodiment of the shape control device in a rolling mill according to the present invention, Figure 2 is a conceptual diagram of the wood side device, and Figure 3 is equivalent to Figure 1 showing a conventional device. It is a diagram. In the figure, (1) is a work roll, (2) is a backup roll, (13) is a roll crown control device, (14) is a roll polishing device, and (15) is a roll heating device. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.

Claims (4)

【特許請求の範囲】[Claims] （１）圧延機出側において検出される圧延形状と各ロー
ルスタンドにおいて検出されたロールクラウンとを比較
して所定のロールクラウンを演算し、この演算値に基づ
きロールクラウンを補正する熱間連続圧延機における形
状制御装置において、上記演算値からロールクラウン補
正量を演算するロールクラウン制御装置と、このロール
クラウン制御装置の補正指令に基づきロールを研磨する
ロール研磨装置及びロール熱処理装置とを備えたことを
特徴とする熱間連続圧延機における形状制御装置。(1) Hot continuous rolling in which a predetermined roll crown is calculated by comparing the rolled shape detected at the exit side of the rolling mill and the roll crown detected at each roll stand, and the roll crown is corrected based on this calculated value. The shape control device for the machine includes a roll crown control device that calculates a roll crown correction amount from the above calculated value, and a roll polishing device and a roll heat treatment device that polish the roll based on a correction command of the roll crown control device. A shape control device for a continuous hot rolling mill characterized by: （２）上記ロール研磨装置として砥石を用いたことを特
徴とする特許請求の範囲第１項に記載の熱間連続圧延機
における形状制御装置。(2) The shape control device for a continuous hot rolling mill according to claim 1, wherein a grindstone is used as the roll polishing device. （３）上記ロール熱処理装置として加熱装置を用いたこ
とを特徴とする特許請求の範囲第１項又は第２項に記載
の熱間連続圧延機における形状制御装置。(3) A shape control device for a continuous hot rolling mill according to claim 1 or 2, characterized in that a heating device is used as the roll heat treatment device. （４）上記ロール熱処理装置として冷却装置を用いたこ
とを特徴とする特許請求の範囲第１項又は第２項に記載
の熱間圧延機における形状制御装置。(4) A shape control device for a hot rolling mill according to claim 1 or 2, characterized in that a cooling device is used as the roll heat treatment device.
JP59253406A 1984-11-28 1984-11-28 Shape control device in hot continuous rolling mill Pending JPS61129211A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59253406A JPS61129211A (en) 1984-11-28 1984-11-28 Shape control device in hot continuous rolling mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59253406A JPS61129211A (en) 1984-11-28 1984-11-28 Shape control device in hot continuous rolling mill

Publications (1)

Publication Number Publication Date
JPS61129211A true JPS61129211A (en) 1986-06-17

Family

ID=17250935

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59253406A Pending JPS61129211A (en) 1984-11-28 1984-11-28 Shape control device in hot continuous rolling mill

Country Status (1)

Country Link
JP (1) JPS61129211A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6074096B1 (en) * 2016-06-02 2017-02-01 Ｐｒｉｍｅｔａｌｓ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｊａｐａｎ株式会社 Sheet profile control method for hot finishing tandem rolling mill and hot finishing tandem rolling mill

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6074096B1 (en) * 2016-06-02 2017-02-01 Ｐｒｉｍｅｔａｌｓ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｊａｐａｎ株式会社 Sheet profile control method for hot finishing tandem rolling mill and hot finishing tandem rolling mill
EP3251763A1 (en) * 2016-06-02 2017-12-06 Primetals Technologies Japan, Ltd. Strip profile control method of hot finishing tandem rolling mill and hot finishing tandem rolling mill
JP2017213592A (en) * 2016-06-02 2017-12-07 Ｐｒｉｍｅｔａｌｓ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｊａｐａｎ株式会社 Plate profile control method of hot finish tandem mill and hot finish tandem mill
CN107457273A (en) * 2016-06-02 2017-12-12 普锐特冶金技术日本有限公司 The board-shape control method and hot-rolling finishing mill of hot-rolling finishing mill
EP3251763B1 (en) 2016-06-02 2019-04-24 Primetals Technologies Japan, Ltd. Strip profile control method of hot finishing tandem rolling mill and hot finishing tandem rolling mill
CN107457273B (en) * 2016-06-02 2019-08-02 普锐特冶金技术日本有限公司 The board-shape control method and hot-rolling finishing mill of hot-rolling finishing mill
US10639688B2 (en) 2016-06-02 2020-05-05 Primetals Technologies Japan, Ltd. Strip profile control method of hot finishing tandem rolling mill and hot finishing tandem rolling mill

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