JPS5919014A - Control device for adjusting pass line of rolling mill - Google Patents
Control device for adjusting pass line of rolling millInfo
- Publication number
- JPS5919014A JPS5919014A JP57128932A JP12893282A JPS5919014A JP S5919014 A JPS5919014 A JP S5919014A JP 57128932 A JP57128932 A JP 57128932A JP 12893282 A JP12893282 A JP 12893282A JP S5919014 A JPS5919014 A JP S5919014A
- Authority
- JP
- Japan
- Prior art keywords
- pass line
- rolls
- rolling
- wedge
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/16—Adjusting or positioning rolls
- B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
- B21B31/22—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis mechanically, e.g. by thrust blocks, inserts for removal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2273/00—Path parameters
- B21B2273/22—Aligning on rolling axis, e.g. of roll calibers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
Abstract
Description
【発明の詳細な説明】 本発明は圧延機のパスライン調整装置に関する。[Detailed description of the invention] The present invention relates to a pass line adjustment device for a rolling mill.
圧延機は、作業ロールのパスラインを調整することが必
要である。そのため、電動圧下の圧延機では、圧下スク
リューを電動機で回転させることにより、パスライン調
整を行なっている。この場合、圧下スクリューは、圧延
中の大きな荷重に抗して動きやすく、かつ、位置決め精
度を良くする目的で、圧下スクリューのネジピッチは小
さく設計されている。従って、ロール組替時には、ロー
ル間にギャップを設ける必要から、圧下スクリューを大
きくストロークさせねばならず、圧下スクリューのピッ
チが小さいため、ロール間にギャップを作り出すこと、
およびロール組替えに時間がか＼シ、圧延機の稼動率の
低下の原因となっていた。油圧に下の場合にも、設備上
の問題から、油タンクが圧延機より遠く離れたところに
あるだめ、管路抵抗が大きくなり油圧ジャツギ内の油の
戻υが遅くなり、ロール組替に多大の時間を必要とする
欠点があった。特に、迅速なロール組替が要求される連
続ミルでは、大きな障害となっていた。Rolling mills require adjustment of the pass line of work rolls. Therefore, in electric rolling mills, the pass line is adjusted by rotating the rolling screw with an electric motor. In this case, the screw pitch of the roll-down screw is designed to be small in order to easily move the roll-down screw against a large load during rolling and to improve positioning accuracy. Therefore, when changing the rolls, it is necessary to create a gap between the rolls, which requires a large stroke of the roll-down screw, and because the pitch of the roll-down screw is small, it is necessary to create a gap between the rolls.
Also, it takes time to rearrange the rolls, which causes a decrease in the operating rate of the rolling mill. Even when the oil pressure is low, due to equipment problems, the oil tank is located far away from the rolling mill, which increases pipe resistance and slows down the return of oil in the hydraulic jack, making it difficult to change rolls. It has the disadvantage that it requires a lot of time. This has been a major hindrance, especially in continuous mills that require quick roll changes.
これらの欠点を改善するため、最近では、電動圧下、油
圧々下を問わず、圧下装置のストロークは可能な限り小
さくして、ステップ状に厚みが変わる階段状ライナーと
ウェッジの組合せでパスライン１．′ｉ３整を行なう方
法が考案され実用化されている。この−例を第１図、第
２図に示す。ウェッジ２及び階段状ライナー３を図示し
ていない水平駆動装置に連結し、各々単独に駆動するこ
とによυ、階段状ライナー３で粗調整を、ウェッジ２で
微調整をそれぞれ行なう。この方式ではウェッジ２及び
階段状ライナー３の水平移動が瞬時に行なえるため、パ
スライン調整量が大きい場合でも、短時間で行なえる利
点がある。しかし、この方式では、ロール径に対して、
いくらの厚みのライナー及びウェッジを使用するのかを
、その都度、圧下装置の位置を考慮して、作朶者が煩雑
な計算をしなければならない上に、操作が複雑なため、
操作ミスが発生しやすかった。この種の操作ミスの一例
を、第２図に示す。本図は階段状ライナー３，１６は厚
みＩ−Ｉ ２のところを使用しなければならなかったの
に、誤って、階段状う・イナー３は正規の厚みよりも薄
い厚みＩ−１、を、階段状ライナー１６は正規の厚みよ
りも厚いＩ■３をそれぞれ使用し、その誤シに気付かず
、油圧ジヤツキ１７で圧下した状態を示したものである
。バックチョック１５及びワークチョック１１は、プロ
ゼクトブロック１８に肖っており、油圧ジヤツキ１７に
より圧延荷重相当の力が直接、ワークロール１ｏのネッ
ク部やワークチョック１１のつば部に作用することにな
る。In order to improve these shortcomings, recently, the stroke of the rolling down device is made as small as possible, whether it is electric rolling down or hydraulic rolling down, and pass line 1 is created using a combination of stepped liner and wedge whose thickness changes stepwise. ．． A method for performing the 'i3 adjustment has been devised and put into practical use. Examples of this are shown in FIGS. 1 and 2. By connecting the wedge 2 and the stepped liner 3 to a horizontal drive device (not shown) and driving each independently, the stepped liner 3 performs coarse adjustment and the wedge 2 performs fine adjustment. This method has the advantage that horizontal movement of the wedge 2 and stepped liner 3 can be carried out instantaneously, so even when the amount of pass line adjustment is large, it can be carried out in a short time. However, with this method, the roll diameter
The manufacturer has to make complicated calculations regarding the thickness of the liner and wedge to be used, taking into account the position of the rolling down device each time, and the operation is complicated.
It was easy for operational errors to occur. An example of this type of operational error is shown in FIG. In this figure, the stepped liners 3 and 16 were supposed to have a thickness of I-I2, but the stepped liner 3 had a thickness of I-1, which is thinner than the normal thickness. , the stepped liner 16 is shown in a state in which I3, which is thicker than the standard thickness, was used, and the liner was rolled down with a hydraulic jack 17 without noticing the mistake. The back chock 15 and the work chock 11 correspond to the project block 18, and a force equivalent to the rolling load is directly applied to the neck portion of the work roll 1o and the collar portion of the work chock 11 by the hydraulic jack 17.
ワークロールのネック部やワークチョックのつば部は、
圧延荷重の１／１ｏ程度以下のロールペンディングカに
しか而Ｊえられないように設計されているため、油圧ジ
ヤツキ１７による大荷重が作用すると、ロール折損やワ
ークチョック破壊等の大事故となる。The neck of the work roll and the brim of the work chock are
Since it is designed so that only a roll pending force of about 1/1 o or less of the rolling load can be applied, if a large load is applied by the hydraulic jack 17, a major accident such as roll breakage or work chock destruction will occur.
本発明は、パスライン調整を正確、かつ、短時間で行な
い、ロール、チョック、プロゼクトブロックに異常荷重
がかからないようにすることを目的とする。SUMMARY OF THE INVENTION An object of the present invention is to perform pass line adjustment accurately and in a short time, and to prevent abnormal loads from being applied to rolls, chocks, and project blocks.
本発明による一実施例を第３図により説明する。An embodiment according to the present invention will be explained with reference to FIG.
演算機２８は計算機２６と判定器２７から構成されてい
る。計算機２６はロール径及び圧延スケジュールに応じ
て、パスライン調整量、即ち、ウェッジ２、階段状ライ
ナー３，１６の厚みと油圧ジヤツキ１７０ストローク及
びパスライン調整後の各ロール４，６，８，１０，１２
．１４の位置を算出する機能をもつ。判定器２７には各
ロール４゜６．８，１０，１２．１４が正常に操作され
、支障なく移動出来る範囲が、予め記憶されており、口
Ｉｊ！機２６で計算された各ロールの位置を、前記の制
限範囲と比較検討する機能がある。従って、パスライン
調整後の各ロールの位置が判定器２７に記憶されている
制限範囲内の場合だけ、サーボバルブ３０．３２が作動
し、シリンダー１９゜２０．２１を介して階段状？イナ
ー３，１６及びウェッジ２が駆動され、位置検出器２２
，２３゜２４で階段状ライナー３，１６及びウェッジ２
の位置を検出しながら、位置決めし、パスライン調整を
行なう。The computing device 28 includes a calculator 26 and a determiner 27. The calculator 26 calculates the pass line adjustment amount according to the roll diameter and rolling schedule, that is, the thickness of the wedge 2, the stepped liner 3, 16, the hydraulic jack 170 stroke, and each roll 4, 6, 8, 10 after the pass line adjustment. ,12
．． It has a function to calculate 14 positions. The determiner 27 stores in advance the range in which each roll 4°6.8, 10, 12.14 can be operated normally and can be moved without any trouble. There is a function to compare and examine the position of each roll calculated by the machine 26 with the above-mentioned limit range. Therefore, only when the position of each roll after the pass line adjustment is within the limit range stored in the determiner 27, the servo valve 30.32 is actuated, and the step-shaped ? The inners 3, 16 and the wedge 2 are driven, and the position detector 22
, 23°24 with stepped liner 3, 16 and wedge 2
While detecting the position, positioning is performed and pass line adjustment is performed.
なお、図中１はハウジング、５はパックチョック、７．
１３は中間チョック、９はワークチョック、２５は位置
検出器、２９．３１はザーボパルプ制御装置である。In the figure, 1 is a housing, 5 is a pack chock, and 7 is a housing.
13 is an intermediate chock, 9 is a work chock, 25 is a position detector, and 29.31 is a servo pulp control device.
この様に、本発明は、ロール径と圧延スケジュールに応
じて、自動、かつ、迅速にパスライン調整を行なうのみ
ならず、ロールの動きを判定器に記憶している制限条件
でチェックしているので、ロールが異常な動きをするこ
とがなくなシ、チョック、ロール及びブロゼクトブロッ
クに大荷重がかからなくなる。従って、ロールの折損、
チョック破壊等の事゛故が避けられる。In this way, the present invention not only automatically and quickly adjusts the pass line according to the roll diameter and rolling schedule, but also checks the roll movement using the limit conditions stored in the judger. Therefore, the rolls do not move abnormally, and large loads are not applied to the chock, rolls, and block block. Therefore, roll breakage,
Accidents such as chock breakage can be avoided.
第１図は従来のパスライン調整制御装置の正面図、第２
図は第１図の側面図、第３図は本発明の一実施例の側面
図である。
２・・・ウェッジ、３・・・階段状ライナー、１７・・
・油圧も ｌ 凶
第 ２ 図Figure 1 is a front view of a conventional pass line adjustment control device;
The figure is a side view of FIG. 1, and FIG. 3 is a side view of one embodiment of the present invention. 2...Wedge, 3...Stepped liner, 17...
・Hydraulic pressure also l Figure 2
Claims (1)
イナー及び油圧ジヤツキのうちの２つ以上の要素を組合
わせて圧延ロール間のギャップを調整する圧延機のパス
ライン調整装置に於いて、ロール径及び圧延スケジュー
ルに応じた前記ネジ機構、前記ウェッジ機構、前記ライ
ナーおよび前記油圧ジヤツキの前記各要素の設定値を算
出する計算機と、この計算機によυ算出された値に前記
各要素を設定した場合、前記圧延ロールの位置がある制
限範囲内にあるか否かを判定する判定器とを備え、前記
圧延ロールの位置がある制限範囲内にあることが前記判
定器で判定された場合のみ、前記計算機で算出された設
定値に、前記パスライン調整装置の前記各要素を設定す
ることを特徴とする圧延機のパスライン調整制御装置。1. In a pass line adjustment device for a rolling mill that adjusts the gap between rolls by combining two or more elements of a screw mechanism, a wedge mechanism, a liner whose thickness changes stepwise, and a hydraulic jack, the roll A calculator that calculates setting values for each of the elements of the screw mechanism, wedge mechanism, liner, and hydraulic jack according to the diameter and rolling schedule, and each element is set to the value υ calculated by this calculator. and a determiner for determining whether the position of the rolling roll is within a certain limited range, and only when the determining device determines that the position of the rolling roll is within a certain limited range, A pass line adjustment control device for a rolling mill, characterized in that each of the elements of the pass line adjustment device is set to set values calculated by the computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57128932A JPS5919014A (en) | 1982-07-26 | 1982-07-26 | Control device for adjusting pass line of rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57128932A JPS5919014A (en) | 1982-07-26 | 1982-07-26 | Control device for adjusting pass line of rolling mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5919014A true JPS5919014A (en) | 1984-01-31 |
Family
ID=14996960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57128932A Pending JPS5919014A (en) | 1982-07-26 | 1982-07-26 | Control device for adjusting pass line of rolling mill |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5919014A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0483939A1 (en) * | 1990-11-02 | 1992-05-06 | MANNESMANN Aktiengesellschaft | Alignment of horizontal rolls |
-
1982
- 1982-07-26 JP JP57128932A patent/JPS5919014A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0483939A1 (en) * | 1990-11-02 | 1992-05-06 | MANNESMANN Aktiengesellschaft | Alignment of horizontal rolls |
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