JPS61165216A - Continuous rolling mill - Google Patents
Continuous rolling millInfo
- Publication number
- JPS61165216A JPS61165216A JP60007195A JP719585A JPS61165216A JP S61165216 A JPS61165216 A JP S61165216A JP 60007195 A JP60007195 A JP 60007195A JP 719585 A JP719585 A JP 719585A JP S61165216 A JPS61165216 A JP S61165216A
- Authority
- JP
- Japan
- Prior art keywords
- tension
- control device
- gain
- speed
- rolling
- 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
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
- B21B37/52—Tension control; Compression control by drive motor control
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明は、連続圧延機に係り、特に被圧延材の張力制御
を改良した連続圧延機に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a continuous rolling mill, and particularly to a continuous rolling mill with improved tension control of a rolled material.
鋼板等を連続的に圧延する連続圧延機において、被圧延
材の張力を目標値に精度よく制御することが製品の板厚
や板幅の品質精度向上および操業性の安定化のために必
要とされる。この被圧延材の張力制御には種々の方法が
あるが、一般には圧延ロールの［１−ル周速を調整する
ことにより被圧延材の張力を所定の値に制御する方法が
とられている。In a continuous rolling mill that continuously rolls steel plates, etc., it is necessary to precisely control the tension of the rolled material to a target value in order to improve the quality accuracy of product thickness and width and to stabilize operability. be done. There are various methods for controlling the tension of the rolled material, but the general method is to control the tension of the rolled material to a predetermined value by adjusting the circumferential speed of the rolling rolls. .
従来の連続圧延機における被圧延材張力制御装置を第６
図に示す。上流側圧延［ｌ−ル１および下流側圧延［］
−ル２によって圧延される被圧延材３の張力は、上流側
圧延ロール１と下流側圧延ロール２との間に設置された
張力検出器４によって検出される。張力制御装置器６に
おいて、張力検出器４の検出値と張力基準設定器５の張
力基準設定値とが比較され、その偏差が比例積分されて
、速度基準補償量として速度制御装置７に出力される。The sixth rolling material tension control device in a conventional continuous rolling mill
As shown in the figure. Upstream rolling [l-ru 1 and downstream rolling]
- The tension of the rolled material 3 rolled by the roll 2 is detected by a tension detector 4 installed between the upstream roll 1 and the downstream roll 2. In the tension control device 6, the detected value of the tension detector 4 and the tension reference set value of the tension reference setting device 5 are compared, and the deviation is proportionally integrated and outputted to the speed control device 7 as a speed reference compensation amount. Ru.
この速度制御装置７ににり主機モータ８に接続す、る−
１−流側圧延ロール１の周速が制御され、この、上流側
圧延ロール１の周速制御により被圧延材３の張力が基準
設定値に等しくなるように制御される。This speed control device 7 is connected to the main engine motor 8.
1-The circumferential speed of the upstream roll 1 is controlled, and by controlling the circumferential speed of the upstream roll 1, the tension of the rolled material 3 is controlled to be equal to the reference setting value.
このとぎ、上流側圧延ロール１の周速の変化量に対する
被圧延材３の張力の変化量は被圧延材３の種類および圧
延条件によって左右されるため、従来においでも板厚や
板幅や変形抵抗等の被圧延材３のデータおよび圧延ロー
ルの周速や圧下率等の圧延条件が張力制御演算器６に入
力され、張力制御演算器７のゲインおにび補償時定数が
調整されており、このことににつて制御性能の改善がな
されていた。At this point, the amount of change in the tension of the rolled material 3 with respect to the amount of change in the circumferential speed of the upstream rolling roll 1 depends on the type of the rolled material 3 and the rolling conditions. Data of the rolled material 3 such as resistance and rolling conditions such as the circumferential speed and rolling reduction of the rolling rolls are input to the tension control calculator 6, and the gain compensation time constant of the tension control calculator 7 is adjusted. In this regard, control performance has been improved.
しかしながら、上記の被圧延材張力制御装置においＣは
、被圧延材の張力ど密接に相互干渉し合う板厚制御装置
のゲイン変更によって圧延ロールの間隙が早い周期で動
かされφことによる張力外乱に対してまで考慮されてお
らず、このにうな張力外乱が起こると被圧延材の張力制
御が不安定になるという問題があった。However, in the above-mentioned rolled material tension control device, C is affected by tension disturbance caused by the rolling roll gap being moved at a fast cycle by changing the gain of the plate thickness control device, which closely interferes with each other, such as the tension of the rolled material. This problem has not been taken into account, and when such tension disturbance occurs, the tension control of the rolled material becomes unstable.
本発明は」−記事情を考慮してなされたもので、被圧延
材の板厚制御装置のゲイン変更に対し安定した張力制御
性能を有ｊ−る被圧延材制御装置を備えた連続圧延機を
提供することを目的とする。The present invention has been made in consideration of the above circumstances, and provides a continuous rolling mill equipped with a rolled material control device that has stable tension control performance when changing the gain of the thickness control device for the rolled material. The purpose is to provide
上記目的を達成り−るため本発明ににる連続圧延機は、
金属等の被圧延材を圧延する圧延ロールと、前記圧延ロ
ールを駆動する主機モータと、前記主機モータの速１α
を制御する速度制御装置と、前記被圧延材の張力を検出
ゴーる張力検出器と、前記張力検出器の検出値と予め定
められた張力基準値との偏差に基づいて前記速度制御装
置に速度基準補償量を出力する張力制御装置と、前記被
圧延材の板厚を制御ザる板厚制御装置と、前記板厚制御
装置のゲインに応じ−Ｃ前記張力制御装置のゲインを補
ｉするゲイン調整器とを備えたことを特徴とづる。In order to achieve the above object, the continuous rolling mill according to the present invention has the following features:
A rolling roll that rolls a material to be rolled such as metal, a main motor that drives the rolling roll, and a speed 1α of the main motor.
a tension detector for detecting the tension of the material to be rolled, and a speed control device for controlling the speed based on the deviation between the detected value of the tension detector and a predetermined tension reference value. a tension control device that outputs a reference compensation amount, a plate thickness control device that controls the thickness of the rolled material, and a gain that compensates for the gain of the tension control device according to the gain of the plate thickness control device. It is characterized by being equipped with a regulator.
これにＪ、す、板厚制御装置のゲイン変更に対してゲイ
ン調整器が張力制御装置のゲインを可変段−３一
定し、安定した張力制御を実現Ｃきるようにしたもので
ある。In addition, when the gain of the plate thickness control device is changed, the gain adjuster keeps the gain of the tension control device constant by -3 variable steps, thereby realizing stable tension control.
本発明の一実施例による連続圧延機を第１図に示す。被
圧延材３を圧延する上流側圧延ロール１ど下流側圧延［
ｌ−ル２どの間に張力検出器４が設置され−Ｃいる。こ
の張力検出器４および張力基準設定器５は張力制御演算
器６に接続されている。FIG. 1 shows a continuous rolling mill according to an embodiment of the present invention. The upstream rolling roll 1 that rolls the material 3 to be rolled and the downstream rolling [
A tension detector 4 is installed between the two wheels. The tension detector 4 and tension reference setting device 5 are connected to a tension control calculator 6.
油圧圧下装置を用いた自動板厚制御装置１２は上流側圧
延［［−ル１と結合して設置されＣいる。張力制御演算
器６および自動板厚制御装置１２はゲイン調整器１１に
接続され、このゲイン調整器１１は速度制御装置７に接
続され、この速度制御装置７は主機モータ８を介して上
流側圧延ロール１に接続されている。また速度制御装置
９は主機モータ１０を介して下流側圧延ロール２に接続
され（”いる。An automatic plate thickness control device 12 using a hydraulic rolling device is installed in conjunction with the upstream rolling mill 1. The tension control calculator 6 and the automatic plate thickness control device 12 are connected to a gain adjuster 11, and this gain adjuster 11 is connected to a speed control device 7, and this speed control device 7 is connected to the upstream rolling mill via the main motor 8. Connected to roll 1. Further, the speed control device 9 is connected to the downstream rolling roll 2 via the main motor 10.
次に動作を説明する。張力検８１器４によって相隣なる
上流側圧延ロール１および下流側圧延ロール２によって
圧延される被圧延材３の張力が検出される。張力制御演
算器６において、張力検出器４の検出値と張力基準設定
器５の張力基準設定値とが比較されその偏差が比例積分
されて速度基準補償量が求められる。ゲイン調整器１１
において、張力制御演算器６による速度基準補償量が自
動板厚制御装置１２により取り込まれたミル常数制御系
のスケール・ファクタＣによって直列補償される。この
自動板厚制ｉ装置１２によるスケール・フイツクＣによ
って補償された速度基準補償量は速度制御′Ｐ：ｅ置７
に出力され、この速度制御装置７により主機モータ８に
接続する上流側圧延ロール１の周速が制御され、この上
流側圧延ロール１の周速制御により被圧延材３の張力が
張力基準設定値に等しくべｆるｊ：うに制御される。こ
こでミル常数制御は自動板厚制御のマイナー・ループで
あり、機械ミル定数Ｍ ［ＴＯＮ／ｓ ］を所定の等価
ミル定数Ｍ ｅ ［ＴＯＮ／ｓ＋＋ ］に制御するもの
である。この機械ミル定数Ｍと等価ミル定数Ｍｅとの関
係はＭ
Ｍ ｅ ＝ −□
（２）となる。ただし、Δｈ［ｍｍ］はロックオン値
よりの出側板厚偏差、ΔＰ ［ＴＯＮ ］は圧延荷重変
動、Ｃはスケール・ファクタであり、
（〕＜１ （３）Ｃ・あ
る。（１）式より等価ミル定数Ｍｅが大きい稈、板厚制
御の積電は高くなることが示される。Next, the operation will be explained. The tension detector 81 4 detects the tension of the rolled material 3 that is rolled by the adjacent upstream roll 1 and downstream roll 2 . In the tension control calculator 6, the detected value of the tension detector 4 and the tension reference setting value of the tension reference setting device 5 are compared, and the deviation is proportionally integrated to determine the speed reference compensation amount. Gain adjuster 11
, the speed reference compensation amount by the tension control calculator 6 is serially compensated by the scale factor C of the mill constant control system taken in by the automatic plate thickness control device 12. The speed reference compensation amount compensated by the scale/fixture C by this automatic plate thickness control device 12 is the speed control 'P:e position 7.
This speed control device 7 controls the circumferential speed of the upstream roll 1 connected to the main motor 8, and by controlling the circumferential speed of the upstream roll 1, the tension of the rolled material 3 is adjusted to the tension reference setting value. is equal to j: is controlled as follows. Here, the mill constant control is a minor loop of automatic plate thickness control, and is for controlling the mechanical mill constant M [TON/s] to a predetermined equivalent mill constant M e [TON/s++]. The relationship between this mechanical mill constant M and the equivalent mill constant Me is M M e = −□
(2) becomes. However, Δh [mm] is the exit plate thickness deviation from the lock-on value, ΔP [TON ] is the rolling load variation, and C is the scale factor. It is shown that for culms with a large equivalent mill constant Me, the stacked electricity due to plate thickness control becomes high.
次に第１図のゲイン調整器１１について詳述する。本実
施例にＪζる連続圧延機の張力制御系および板厚制御系
を第２図に示す。まず張力制御系においては被圧延材張
力の被圧延材速度へのフィードバック２０の張力フィー
ドバック係数に１ｏは被メ１延祠おＪ、び圧延スケジュ
ールにより変化する値であり、この１１ノーが小さい程
張力変動が増大１”る。Next, the gain adjuster 11 shown in FIG. 1 will be explained in detail. FIG. 2 shows the tension control system and plate thickness control system of the continuous rolling mill Jζ in this example. First, in the tension control system, 1o is a tension feedback coefficient 20 that feedbacks the tension of the rolled material to the speed of the rolled material, and 1o is a value that changes depending on the rolling schedule and the rolling schedule. Tension fluctuation increases by 1".
また張力フィードバック係数に１ｏは張力制御演算器６
の制御定数Ｔ１．Ｔ２の設定に対してＴ２＝ＴＭ
（５）によって反映されている。ただ
しＴＭは速度制御装置７の遅れ時定数である。ゲイン調
整器１１の直列補償要素１く、を考慮に入れると張力制
御系のトータル・ゲインは
となる。板厚制御系においては板厚制御装置１２はロー
ドセル時定数ＴＬ ［８］のロードセル２１、−〇
（１）式に示されたミル常数制御量□に対応するミル常
数制ｔｉｎ ２２および油圧圧下装置時定数ＴＶ［Ｓ］
の油圧圧下装置２３を有している。In addition, 1o for the tension feedback coefficient is the tension control calculator 6.
The control constant T1. For the setting of T2, T2=TM
This is reflected by (5). However, TM is a delay time constant of the speed control device 7. Taking into consideration the series compensation element 1 of the gain adjuster 11, the total gain of the tension control system is as follows. In the plate thickness control system, the plate thickness control device 12 includes a load cell 21 with a load cell time constant TL [8], a mill constant system tin 22 corresponding to the mill constant control amount □ shown in equation (1), and a hydraulic reduction device. Time constant TV [S]
It has a hydraulic lowering device 23.
張力変化Δ［Ｋｇ／ ｍｔＡ ］に対する被圧延材速庶
変化量ΔＶ［ｓ／ｓ］は、板厚制御系も含めて表わすと
、
となる。ただしｍ ［ＴＯＮ／ｓ ］は塑性変形率、Ｐ
［ＴＯＮ］は圧延荷重、ｔ： ［Ｋｙ／１ｎｉｒ ］は
張ツバｂは後進率、ｈ ［ｓｌは板厚、Ｖ［＃／Ｓ］は
被圧延材速度である。第２図に示されるように、板厚制
御装置１２は被圧延材張力の被圧延材速度へのフィール
ドバック２０と並列になっているため、〈７）式に表わ
されるように板厚制御系は張力フィードバック係数に１
ｏを減少させる作用があり、その度合はミル常数制御２
２のスケール・ファクタＣが大ぎい程大ぎい。本実施例
による連続圧延機の板厚制御系を含めた張力制御系の閉
ループのボード線図を第４図に示す。この第４図に、お
いて板厚制御系のスケール・ファクタＣが
−Ｏ
の状態で調整した張力制御ゲインのままで、スケール・
ファクタ０を
一 ８ −
Ｃ＝０． ９
に変更すると、張力制御系が振動系を形成し、張力制御
が不安定化するのが分る。本実施例による連続圧延機の
板厚制御系のスケール・ファクタＣとゲイン調整器１１
の直列補償要素Ｋｔとの関係を第３図に示す。上記の板
厚制御系のスケール・ファクタＣの変更による張力制御
の不安定性は、スケール・ノアフタＣの変更に応じ−Ｃ
張力制御系のゲインを調整器るゲイン調整器１１を備え
、第３図に示すようなスケール・ファクタＣに応じたゲ
イン調整器１１の直列補償要素Ｋｔを可変設定すること
によって解消することができる。The amount of change in velocity of the rolled material ΔV [s/s] with respect to the change in tension Δ[Kg/mtA], including the plate thickness control system, is as follows. However, m [TON/s] is the plastic deformation rate, P
[TON] is the rolling load, t: [Ky/1nir] is the tension brim, b is the backward movement rate, h [sl is the plate thickness, and V[#/S] is the speed of the rolled material. As shown in FIG. 2, the plate thickness control device 12 is in parallel with the feedback 20 of the tension of the rolled material to the speed of the rolled material, so the thickness control system is 1 for the tension feedback coefficient
It has the effect of reducing o, and its degree is determined by Mill constant control 2
The larger the scale factor C of 2 is, the larger it is. FIG. 4 shows a Bode diagram of the closed loop of the tension control system including the plate thickness control system of the continuous rolling mill according to this embodiment. In Fig. 4, the scale factor C of the plate thickness control system is -O and the tension control gain is still adjusted.
Factor 0 minus 8 - C=0. 9, the tension control system forms a vibration system and the tension control becomes unstable. Scale factor C and gain adjuster 11 of plate thickness control system of continuous rolling mill according to this embodiment
The relationship between Kt and the series compensation element Kt is shown in FIG. The instability of tension control caused by changing the scale factor C of the plate thickness control system described above can be reduced by changing the scale factor C.
This problem can be solved by providing a gain adjuster 11 that adjusts the gain of the tension control system and variably setting the series compensation element Kt of the gain adjuster 11 according to the scale factor C as shown in FIG. .
本発明の別の実施例にＪ：る連続圧延機を第５図に示す
。被圧延材３を圧延する上流側圧延ロール１と下流側圧
延［］−ル２との間にルーパ１３おにび張力検出器４が
設置されている。ルーパ１３はルーパ駆動モータ１４Ｊ
３よびルーパ位置検出器１９に接続されている。ルーパ
位置検出器１９およびルーパ位置設定器１８はルーパ位
置制御装置１７に接続されている。このルーパ位置制御
装置１７による制御信号は速瓜制御装＠１６に出力され
、この速度制御装置１６はルーパ駆動モータ１４の電流
を制御する電流制御装置１５に接続されている。張力検
出器４および張力基ｔ？ｌｉＱ定器５は張力制御演算器
６に接続されている。油圧圧下装置を用いた自動板厚制
御装置１２は上流側圧延１］−ル１に設訂されている。A continuous rolling mill according to another embodiment of the present invention is shown in FIG. A looper 13 and a tension detector 4 are installed between an upstream rolling roll 1 and a downstream rolling roll 2 that roll a material 3 to be rolled. The looper 13 is a looper drive motor 14J
3 and the looper position detector 19. The looper position detector 19 and the looper position setter 18 are connected to the looper position control device 17. A control signal from this looper position control device 17 is output to a speed melon control device @16, and this speed control device 16 is connected to a current control device 15 that controls the current of the looper drive motor 14. Tension detector 4 and tension base t? The liQ constant device 5 is connected to a tension control calculator 6. An automatic plate thickness control device 12 using a hydraulic rolling device is installed in the upstream rolling mill 1.
ゲイン調整器１１は、張力装置６ ｄ３よび自動板厚制
御Ｉ装置１２に接続され、自動板厚制御装置１２のゲイ
ンに応じて張力制御装置６のゲインを補償する。このゲ
イン調整器１１による補償制御信号は速度制御装置７に
出力され、この速度制御装置７は、上流側圧延ロール１
を駆動する主機モータ８の速度をこの補償制御信号によ
り制御する。The gain adjuster 11 is connected to the tension device 6 d3 and the automatic plate thickness control device 12, and compensates the gain of the tension control device 6 according to the gain of the automatic plate thickness control device 12. The compensation control signal from this gain adjuster 11 is output to the speed control device 7, and this speed control device 7 controls the upstream rolling roll 1.
The speed of the main motor 8, which drives the main machine motor 8, is controlled by this compensation control signal.
本実施例による連続圧延機のルーパ制御系の動作を説明
する。ルーパ１３の位置はルーパ位置検出器１９によっ
て検出される。ルーパ位置制御装置１７において、ルー
パ位置検出器１９の検出値とルーパ位置設定器１８の設
定値とが比較され、その偏差に基づいてルーパ位置制御
信号は速度制御装置１６、電流制御装置１５およびルー
パ駆動モータ１４を介して、ルーパ１３の位置が設定値
に一致づるように制御する。本実施例による連続圧延機
の張力制御系Ｌ１３よび板厚制御系の動作は前述の実施
例と同様であり、また板厚制御系のスケール・ファクタ
Ｃに応じて張力制御系のゲインを調整するゲイン調整器
１１の構成おＪ：び動作も前述の実施例と同様である。The operation of the looper control system of the continuous rolling mill according to this embodiment will be explained. The position of the looper 13 is detected by a looper position detector 19. In the looper position control device 17, the detected value of the looper position detector 19 and the set value of the looper position setter 18 are compared, and the looper position control signal is transmitted to the speed control device 16, the current control device 15, and the looper position control device based on the deviation. The position of the looper 13 is controlled via the drive motor 14 so that it matches the set value. The operations of the tension control system L13 and the plate thickness control system of the continuous rolling mill according to this embodiment are similar to those of the previous embodiment, and the gain of the tension control system is adjusted according to the scale factor C of the plate thickness control system. The configuration and operation of the gain adjuster 11 are also similar to those in the previous embodiment.
以上の通り本発明にＪ：れば、被圧延材の板厚制御装置
のゲイン変更に伴う被圧延材の張力制御の不安定性を取
り除き、安定した張力制御を実現でき、被圧延材の板厚
、板中の寸法精度を向、トさせることができる。As described above, according to the present invention, it is possible to eliminate the instability of the tension control of the rolled material due to gain changes of the thickness control device for the rolled material, realize stable tension control, and increase the thickness of the rolled material. , it is possible to improve the dimensional accuracy in the board.
第１図は本発明の一実施例による連続圧延機を示すブロ
ック図、第２図は本発明の一実施例による連続圧延機の
張力制御系および板厚１１ｉ１Ｊ御系を示すブロック図
、第３図は本発明の一実施例による− １１ 一
連続圧延機の板厚制御系のスケール・ファクタＣとゲイ
ン調整器の直列補償要素Ｋｔとの関係を示すグラフ、第
４図は板厚制御系のゲイン変更によって張力制御系が振
動系を形成することを示すボード線図、第５図は本発明
の別の実施例による連続圧延機を示すブロック図、第６
図は従来の連続圧延機を示ずブ［１ツク図である。
１．２・・・圧延［１−ル、３・・・被圧延材、４・・
・張力検出器、５・・・張力基準設定器、６・・・張力
制御演算器、７．９・・・速度制御装置、８．１０・・
・主機モータ、１１・・・ゲイン調整器、１２・・・自
動板厚制６１１装置、１３・・・ルーパ、１４・・・ル
ーパ駆動モータ、１５・・・電流制御装置、１６・・・
速度制御装置、１７・・・ルーパ位置制御装置、１８・
・・ルーパ位置設定器、１９・・・ルーパ位置検出器、
２０・・・被圧延材張力の被圧延材速度へのフィールド
バック、２１・・・ロードセル、２２・・・ミル常数制
御、２３・・・油圧圧下装置。
１．９Ｆ’ｌ ’：Ｊ−、、Ｉｒ
［雨］Ｖ計暑
第５図
第６図FIG. 1 is a block diagram showing a continuous rolling mill according to an embodiment of the present invention, FIG. 2 is a block diagram showing a tension control system and a plate thickness 11i1J control system of the continuous rolling mill according to an embodiment of the present invention, and FIG. Figure 4 is a graph showing the relationship between the scale factor C of the plate thickness control system of a continuous rolling mill and the series compensation element Kt of the gain adjuster according to an embodiment of the present invention. A Bode diagram showing that the tension control system forms a vibration system by changing the gain, FIG. 5 is a block diagram showing a continuous rolling mill according to another embodiment of the present invention, and FIG.
The figure does not show a conventional continuous rolling mill, but is a block diagram. 1.2... Rolling [1-ru, 3... Material to be rolled, 4...
・Tension detector, 5... Tension reference setting device, 6... Tension control calculator, 7.9... Speed control device, 8.10...
- Main motor, 11... Gain adjuster, 12... Automatic plate thickness control 611 device, 13... Looper, 14... Looper drive motor, 15... Current control device, 16...
Speed control device, 17... Looper position control device, 18.
... Looper position setter, 19... Looper position detector,
20...Feedback of the tension of the rolled material to the speed of the rolled material, 21...Load cell, 22...Mill constant control, 23...Hydraulic rolling device. 1.9 F'l': J-,, Ir [Rain] V meter Heat Figure 5 Figure 6
Claims (1)
動する主機モータと、前記主機モータの速度を制御する
速度制御装置と、前記被圧延材の張力を検出する張力検
出器と、前記張力検出器の検出値と予め定められた張力
基準値との偏差に基づいて前記速度制御装置に速度基準
補償量を出力する張力制御装置と、前記被圧延材の板厚
を制御する板厚制御装置と、前記板厚制御装置のゲイン
に応じて前記張力制御装置のゲインを補償するゲイン調
整器とを備えたことを特徴とする連続圧延機。A rolling roll that rolls the material to be rolled, a main motor that drives the rolling roll, a speed control device that controls the speed of the main motor, a tension detector that detects the tension of the material to be rolled, and the tension detector. a tension control device that outputs a speed reference compensation amount to the speed control device based on a deviation between a detected value of the machine and a predetermined tension reference value; and a plate thickness control device that controls the thickness of the rolled material. and a gain adjuster that compensates for the gain of the tension control device according to the gain of the plate thickness control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60007195A JPS61165216A (en) | 1985-01-18 | 1985-01-18 | Continuous rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60007195A JPS61165216A (en) | 1985-01-18 | 1985-01-18 | Continuous rolling mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61165216A true JPS61165216A (en) | 1986-07-25 |
| JPH0472608B2 JPH0472608B2 (en) | 1992-11-18 |
Family
ID=11659246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60007195A Granted JPS61165216A (en) | 1985-01-18 | 1985-01-18 | Continuous rolling mill |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61165216A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009034730A (en) * | 2008-09-12 | 2009-02-19 | Toshiba Mitsubishi-Electric Industrial System Corp | Tension control device for tandem rolling mill |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101869239B1 (en) * | 2014-04-29 | 2018-06-21 | 토안 기아 엔지니어링 매뉴팩추어링 앤드 트레이딩 서비스 코.,엘티디 | Fireproof Safe Manually Opening/Closing Device, Change of Attachment Position of Manually Opening/Closing Device, and Process of Manufacturing Exterior of Fireproof Safe Door |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS547743A (en) * | 1977-06-18 | 1979-01-20 | Onitsuka Co | Float for lane rope of swimming pool |
| JPS5633113A (en) * | 1979-08-27 | 1981-04-03 | Nippon Steel Corp | Controlling method for tension in continuous hot rolling mill |
-
1985
- 1985-01-18 JP JP60007195A patent/JPS61165216A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS547743A (en) * | 1977-06-18 | 1979-01-20 | Onitsuka Co | Float for lane rope of swimming pool |
| JPS5633113A (en) * | 1979-08-27 | 1981-04-03 | Nippon Steel Corp | Controlling method for tension in continuous hot rolling mill |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009034730A (en) * | 2008-09-12 | 2009-02-19 | Toshiba Mitsubishi-Electric Industrial System Corp | Tension control device for tandem rolling mill |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0472608B2 (en) | 1992-11-18 |
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