JPS6241802B2 - - Google Patents
Info
- Publication number
- JPS6241802B2 JPS6241802B2 JP53004837A JP483778A JPS6241802B2 JP S6241802 B2 JPS6241802 B2 JP S6241802B2 JP 53004837 A JP53004837 A JP 53004837A JP 483778 A JP483778 A JP 483778A JP S6241802 B2 JPS6241802 B2 JP S6241802B2
- Authority
- JP
- Japan
- Prior art keywords
- rolling
- roll
- strip
- shape
- stand
- 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
- 238000005096 rolling process Methods 0.000 claims description 28
- 238000000034 method Methods 0.000 claims description 9
- 230000000694 effects Effects 0.000 description 4
- 238000013000 roll bending Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000005097 cold rolling Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004043 responsiveness 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
- B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
Description
【発明の詳細な説明】
本発明は圧延機におけるストリツプの形状制御
方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for controlling the shape of a strip in a rolling mill.
従来、４段圧延機においては、各種のロールベ
ンデイング装置を附属させて形状制御を行つてい
たが、作動油圧系のトラブルや装置の複雑化によ
るコストアツプ等があり、且つ最も安価なワーク
ロールベンデイング装置では、ベンデイング力を
加えることによるロールネツクベアリングの寿命
低下や軸箱の強度により抑制されるため必要とす
るベンデイング力を与えることができない、等の
問題点がある。そのためストリツプ品質は、その
板厚誤差の少ないことと共に形状の良いことが要
求されているが、いまだに十分な形状制御手段が
開発されるに至つていないのが実状である。 Conventionally, four-high rolling mills have been equipped with various roll bending devices to control the shape, but this has resulted in problems with the hydraulic system and increased costs due to the complexity of the device. Bending devices have problems, such as a reduction in the life of the roll neck bearing due to the application of bending force, and the inability to apply the necessary bending force because it is suppressed by the strength of the axle box. Therefore, the quality of the strip is required to be small in thickness error and good in shape, but the reality is that sufficient shape control means have not yet been developed.
一方既に圧延機の上下作業ロールに速度差を強
制的につけることにより圧延荷重を大巾に広げ得
ることは公知である。 On the other hand, it is already known that the rolling load can be widened by forcing a speed difference between the upper and lower work rolls of a rolling mill.
本発明はストリツプ形状制御手段として前記異
速作業ロールによる圧延荷重制御を行わしめる方
法を利用することを目的としたもので、等速圧延
機を含む多スタンドを有する圧延設備における少
くとも１基以上のスタンドの駆動を、上下作業ロ
ールの周速を各々別個に任意に変えて行い、これ
により生じる圧延荷重の変化を利用してストリツ
プの形状を制御することを特徴とする形状制御方
法に係るものである。 The present invention aims to utilize the method of controlling the rolling load using the different speed work rolls as a strip shape control means, and is aimed at using at least one of the rolling equipment having multiple stands including a constant speed rolling mill. A shape control method characterized in that the stands are driven by arbitrarily changing the circumferential speeds of the upper and lower work rolls separately, and the shape of the strip is controlled using changes in the rolling load caused by this. It is.
以下本発明を更に具体的に説明する。 The present invention will be explained in more detail below.
一般的に、例えば連続冷間圧延機の場合には、
ストリツプの最終的形状は連続圧延機の最終スタ
ンド又は最終の２つのスタンドにおいて決定され
る。 Generally, for example, in the case of a continuous cold rolling mill,
The final shape of the strip is determined in the last stand or the last two stands of the continuous rolling mill.
そこでこれら必要とするスタンドの上下作業ロ
ールの回転数を各々別個に制御し得るようにす
る。その一実施例を第１図に示す。１は上作業ロ
ール、２は下作業ロール、３は上ロール駆動モー
タ、４はロール駆動モータ、５は上ロール用速度
設定器、６は下ロール用速度設定器であり、これ
らは何れも多スタンドミルの最終必要スタンドの
ものである。 Therefore, it is possible to separately control the rotational speed of the upper and lower work rolls of the stand. One embodiment is shown in FIG. 1 is an upper work roll, 2 is a lower work roll, 3 is an upper roll drive motor, 4 is a roll drive motor, 5 is a speed setting device for the top roll, and 6 is a speed setting device for the bottom roll. This is the final stand needed for the stand mill.
本発明では、必要な個所、即ち例えばこの最終
スタンドの駆動方法を、前記速度設定器５，６に
より上下作業ロール１，２を別個に速度設定し得
るようにし、周速差をもたせる結果生じる圧延荷
重の変化を利用してストリツプの形状を制御す
る。 In the present invention, the driving method of a necessary part, that is, for example, this final stand, is such that the speed of the upper and lower work rolls 1 and 2 can be set separately by the speed setting devices 5 and 6, and the rolling that occurs as a result of providing a difference in circumferential speed. The shape of the strip is controlled using changes in load.
今一定の圧延条件下（前後張力値、及びロール
ギヤツプの変更なし）で圧延を行うと、第２図に
示すように上下作業ロール１，２の周速比に関連
して圧延荷重（圧延力）を軽減することができる
〔尚第２図において、1.0の場合は通常の圧延状態
（上下作業ロール１，２の周速が同一）の場合で
あり、又点Ｐは高速ロールの先進率が０「ゼロ」
の点である。〕。前記圧延荷重の軽減はストリツプ
の端伸び特にエツジドロツプと呼ばれる極端なス
トリツプ端の減厚に対し大きな効果があり、従来
冷間圧延で問題視されているエツジクラツクの防
止にもその効果が大きく期待し得るものである。
又本発明の方法の場合、圧延条件を一定に保ち、
且つ荷重を変化し得ることは、既に知られている
油圧圧下ミルを使用し、圧延荷重の変化があつて
もロールギヤツプを一定に保つ制御とか、従来採
用されている圧延機出側の板厚計によりストリツ
プ板厚を一定に保つAGCシステムが併用される
ことは云うまでもない。 If rolling is carried out under constant rolling conditions (no change in longitudinal tension or roll gap), the rolling load (rolling force) will change in relation to the circumferential speed ratio of the upper and lower work rolls 1 and 2, as shown in Figure 2. [In Fig. 2, 1.0 is the normal rolling state (the circumferential speeds of the upper and lower work rolls 1 and 2 are the same), and point P is the case where the advance rate of the high-speed roll is 0. "zero"
This is the point. ]. Reducing the rolling load described above has a great effect on strip edge elongation, especially the extreme thinning of the strip edge called edge drop, and can be expected to have a great effect on preventing edge cracks, which have traditionally been considered a problem in cold rolling. It is something.
In addition, in the case of the method of the present invention, rolling conditions are kept constant,
In addition, the load can be changed by using a hydraulic reduction mill, which is already known, and by controlling the roll gap to remain constant even when the rolling load changes. Needless to say, an AGC system is also used to keep the strip thickness constant.
従来の圧延で異速によりストリツプに生じるそ
りを問題視する場合、最終の２つのスタンドで高
速側のロール位置を夫々上下別々に配置し、そり
方向を変えることによりそりを除くことができ、
且つ形状修正の効果も大きくなる。 If you are concerned about the warpage that occurs in the strip due to different speeds during conventional rolling, you can eliminate the warp by placing the rolls on the high-speed side of the final two stands at different upper and lower positions, and changing the warp direction.
Moreover, the effect of shape modification is also increased.
又本発明では、この方法を実施する装置と従来
採用されているロールベンデイング装置と併用す
ることも包含するものであり、有効なストリツプ
形状検出器を附属すれば簡単に自動形状制御装置
を組立て得るのは勿論である。 The present invention also includes the use of a device for carrying out this method in combination with a conventional roll bending device, and an automatic shape control device can be easily assembled by attaching an effective strip shape detector. Of course you can get it.
以上述べたように、多スタンド圧延設備におい
て、少くとも１基以上のスタンドの駆動方法を上
下作業ロールの周速を各々別個に任意に変えるよ
うにし、その結果生じる圧延荷重の変化を利用し
てストリツプの形状を制御するので次のような優
れた効果を発揮する。 As mentioned above, in multi-stand rolling equipment, the driving method for at least one or more stands is such that the circumferential speed of the upper and lower work rolls is independently and arbitrarily changed, and the resulting change in rolling load is utilized. Since the shape of the strip is controlled, the following excellent effects can be achieved.
(i) 従来のロールベンデイング等の手段に比し、
より大きな範囲でストリツプ形状制御が可能で
ある。(i) Compared to conventional methods such as roll bending,
Strip shape control is possible over a larger range.
(ii) ロールチヨツクにロールベンデイング等の大
きな外力を加えることがなくなるため、ロール
ネツクベアリングの寿命が伸びる。(ii) Since large external forces such as roll bending are no longer applied to the roll neck bearing, the life of the roll neck bearing is extended.
(iii) 何ら従来の圧延機のものと変らないスタンド
構造で使用できる。(iii) It can be used with a stand structure that is no different from that of conventional rolling mills.
(iv) 多スタンド圧延設備において全スタンドを制
御することなく制御を対象とする少なくとも１
基以上のスタンドだけの上下ワークロールの周
速比を変えるだけで、他のスタンドは一切いじ
られないことから、板厚精度、形状制御の応答
性がよく、高精度が得られる。(iv) At least one stand to be controlled without controlling all stands in a multi-stand rolling mill.
By simply changing the circumferential speed ratio of the upper and lower work rolls on the stand above the base, the other stands are not altered at all, resulting in good board thickness accuracy, good responsiveness in shape control, and high precision.
第１図は本発明の一実施例に係り本発明の方法
を実施する装置の概略構成図、第２図は圧延力と
上下作業ロール周速比との関係を示すグラフであ
る。
１は上作業ロール、２……下作業ロール、３…
…上記ロール駆動モーター、４……下ロール駆動
モーター、５……上ロール用速度設定器、６……
下ロール用速度設定器。
FIG. 1 is a schematic diagram of an apparatus for implementing the method of the present invention according to an embodiment of the present invention, and FIG. 2 is a graph showing the relationship between rolling force and circumferential speed ratio of upper and lower work rolls. 1 is an upper work roll, 2...a lower work roll, 3...
...The above roll drive motor, 4...Lower roll drive motor, 5...Upper roll speed setting device, 6...
Speed setting device for lower roll.
Claims (1)
備における少なくとも１基以上のスタンドの駆動
を、上下作業ロールの周速を各々別個に任意に変
えて行い、これにより生じる圧延荷重の変化を利
用してストリツプの形状を制御することを特徴と
する圧延設備における形状制御方法。1 In a rolling equipment having multiple stands including a constant speed rolling mill, at least one stand is driven by independently changing the circumferential speed of the upper and lower work rolls separately, and the resulting change in rolling load is utilized. 1. A method for controlling the shape of a strip in a rolling facility, characterized in that the shape of the strip is controlled by
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP483778A JPS5497562A (en) | 1978-01-20 | 1978-01-20 | Control of shape in rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP483778A JPS5497562A (en) | 1978-01-20 | 1978-01-20 | Control of shape in rolling mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5497562A JPS5497562A (en) | 1979-08-01 |
| JPS6241802B2 true JPS6241802B2 (en) | 1987-09-04 |
Family
ID=11594795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP483778A Granted JPS5497562A (en) | 1978-01-20 | 1978-01-20 | Control of shape in rolling mill |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5497562A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11558543B2 (en) | 2017-09-05 | 2023-01-17 | Meta Platforms, Inc. | Modifying capture of video data by an image capture device based on video data previously captured by the image capture device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5772713A (en) * | 1980-10-23 | 1982-05-07 | Mitsubishi Electric Corp | Shape controlling device for rolling mill |
| DE4408289A1 (en) * | 1994-03-11 | 1995-09-14 | Siemens Ag | Rolling mill, in particular cold rolling mill |
-
1978
- 1978-01-20 JP JP483778A patent/JPS5497562A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11558543B2 (en) | 2017-09-05 | 2023-01-17 | Meta Platforms, Inc. | Modifying capture of video data by an image capture device based on video data previously captured by the image capture device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5497562A (en) | 1979-08-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE19818207C2 (en) | Steckel hot rolling mill | |
| US4537057A (en) | Method for RD rolling sheet metal | |
| US3940960A (en) | Interstand tension control method and apparatus for tandem rolling mills | |
| JP3097530B2 (en) | Cluster type multi-high rolling mill and rolling method | |
| DE3314466A1 (en) | METHOD AND DEVICE FOR CONTROLLING AN INTERMEDIATE TENSION VOLTAGE IN A CONTINUOUS ROLLING MILL | |
| JPS6241802B2 (en) | ||
| CA2280712A1 (en) | A rolling apparatus and a rolling method | |
| US4691546A (en) | Rolling mill control for tandem rolling | |
| JP2682358B2 (en) | Control method for changing running setting in rolling mill | |
| JP2792746B2 (en) | Backup roll holding method for cross roll rolling mill | |
| JPS60121B2 (en) | Rolling method and equipment | |
| JPS5970406A (en) | Inter-stand vertical rolling mill | |
| JP3079913B2 (en) | Rolling control method for cold tandem rolling mill | |
| JP3526686B2 (en) | Roll peripheral speed control method for upper and lower roll driven rolling mills | |
| JP3348540B2 (en) | Control method of tandem mill | |
| JPS643521Y2 (en) | ||
| JP3426108B2 (en) | Continuous rolling mill tension control device | |
| JPS5619905A (en) | Method and apparatus for rolling metallic material | |
| JP2680252B2 (en) | Shape control method for multi-high rolling mill | |
| JP3348538B2 (en) | Control method of tandem mill | |
| JPS6225442B2 (en) | ||
| JPH03161108A (en) | Temper rolling method | |
| JPS6313761B2 (en) | ||
| DE2745684A1 (en) | Skew rolling mill with planetary rotor - where load cell controls tensile or compressive stress on workpiece during tandem rolling | |
| JPS6245413A (en) | Shape control method on multistage rolling mill |