JPS60102217A - Method and apparatus for plate width control in vertical rolling mill - Google Patents
Method and apparatus for plate width control in vertical rolling millInfo
- Publication number
- JPS60102217A JPS60102217A JP58210489A JP21048983A JPS60102217A JP S60102217 A JPS60102217 A JP S60102217A JP 58210489 A JP58210489 A JP 58210489A JP 21048983 A JP21048983 A JP 21048983A JP S60102217 A JPS60102217 A JP S60102217A
- Authority
- JP
- Japan
- Prior art keywords
- slab
- tip
- width
- sent
- circuit
- 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
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/16—Control of thickness, width, diameter or other transverse dimensions
- B21B37/22—Lateral spread control; Width control, e.g. by edge rolling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Control Of Metal Rolling (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、スラブを幅圧下する場合に、先i”1ili
の幅精度をも良好にし得るようにした竪型圧延機におけ
る板幅制御方法及びその装置ト1に関すQものである。DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method for rolling down a slab in width.
This article relates to a strip width control method in a vertical rolling mill and an apparatus therefor that can improve the width accuracy of the strip.
スラブを竪型圧延機に上り幅圧下する場合に左右の竪ロ
ール間のギャップを所定の間隔にし、竪ロール間にスラ
ブ先端が噛込1れたら圧下装置により竪ロールを介して
スラブに所定の圧下刃を与え幅圧下を行うと、第1図に
示すご占く、スラブ噛込み時の圧下シリンダーの沈込み
によりスラブ(S)先端には板幅変化部(alが発生ず
る0そこで、板幅変化部(α)を少々くするために、竪
ロール間のギヤツブを所定の寸法よりも用トーンリンダ
−の沈込み相当量(初期ギヤノブ)だけ小さくして幅圧
下を行っても、第2図に示すごとく、スラブI8)先端
には板幅変化部(a′)が生じる。When the slab goes up to the vertical rolling mill and is rolled down in width, the gap between the left and right vertical rolls is set to a predetermined interval, and when the tip of the slab is bitten between the vertical rolls, the rolling device rolls the slab through the vertical rolls to the specified width. When width reduction is performed by applying a reduction blade, as shown in Figure 1, due to the sinking of the reduction cylinder when the slab is biting, a plate width change part (al) is generated at the tip of the slab (S). Even if width reduction is performed by making the gear knob between the vertical rolls smaller than the predetermined size by the amount equivalent to the depression of the tone cylinder (initial gear knob) in order to reduce the width change part (α) a little, the second As shown in the figure, a plate width changing portion (a') is formed at the tip of slab I8).
本発明は、スラブ先端に生じる板幅変化をできるたけ少
くしてスラブ先端の板j層精度を・良好にすることを目
的としてなしたもので、初期ギャップを零にしてスラブ
先端噛込み時に、圧下シリンダーに圧下シリンダー内の
液が圧縮される分たけ液を補充するようにしている。The present invention was made with the aim of improving the accuracy of the plate J layer at the tip of the slab by minimizing the change in plate width that occurs at the tip of the slab. The reduction cylinder is replenished with liquid in proportion to the amount of liquid in the reduction cylinder being compressed.
以下、不発り」の実施例を図面を参照しつつ説明する。Hereinafter, an example of the "misfire" will be described with reference to the drawings.
第6図〜第5図中(1)は竪ロール、(2)は竪ロール
(1)を回転自在に支持する竪ロール軸箱、(3)はス
ラブ(8)を幅圧下する圧下シリング゛−1(4)はス
ラブ(s)の先端位置を検出するノオトセル等の先端位
置検出器、(5)はスラブ(8)の速度を検出する速度
検出器、(6) (dスラブ(8)の先皓が竪ロール(
1)(1)間に噛込1れたことを検出する加速度計、(
7)は圧下刃を検出する荷重検出器、(8)はサーボ弁
、(9)αOは圧液をサーボ弁(8)がら圧下シリング
゛−(3)へ送給する管路であり、先端位置検出器(4
)及び速度位置検出器(5)で検出した信号は論理回路
(1])へ送信し得るようになっており、論理回路(1
1)よりの出力及び加速度計(6)で検出した信号はア
ンド回路θ′2に送信し得るようになっている。又アン
ド回路0(2)よりの出力信号及びr”r重検出3ty
(7)で検出した信号は演算制御装置0;ルに送化しf
4Iるようになっており、演算制御装置03からはサー
ボ弁(8)へ指令を為え得るようになっている4、先端
位置検出器(4)により検出され/こスラブ(s)の先
端位置の信号及び速度検出器(5)で検出さIしたスラ
ブ(s)の速度信号は論理回路(]、1)に送ら:?t
li亥論理回路01)でスラブ(8)の先端が何秒後に
竪Ll−ル(1)の外周に到達するかが演規−される。In Figures 6 to 5, (1) is a vertical roll, (2) is a vertical roll shaft box that rotatably supports the vertical roll (1), and (3) is a rolling sill that rolls down the width of the slab (8). -1 (4) is a tip position detector such as a noto cell that detects the tip position of the slab (s), (5) is a speed detector that detects the speed of the slab (8), (6) (d slab (8) The tip of the head is a vertical roll (
1) An accelerometer that detects when something is caught between (1)
7) is a load detector that detects the reduction blade, (8) is a servo valve, and (9) αO is a pipe line that feeds pressure liquid from the servo valve (8) to the reduction cylinder (3). Position detector (4
) and the speed position detector (5) can be sent to the logic circuit (1]).
The output from 1) and the signal detected by the accelerometer (6) can be sent to the AND circuit θ'2. In addition, the output signal from the AND circuit 0 (2) and r”r overlap detection 3ty
The signal detected in (7) is sent to the arithmetic and control unit 0;
The arithmetic and control unit 03 can issue commands to the servo valve (8).The tip position detector (4) detects the tip of the slab (s). The position signal and the speed signal of the slab (s) detected by the speed detector (5) are sent to the logic circuit (], 1): ? t
The logic circuit 01) determines how many seconds it will take for the tip of the slab (8) to reach the outer periphery of the vertical line (1).
ず々わち、先端位置検出器(4)から竪ロール(1)中
心−・1ての距離をl、竪ロール(1)の半径を1(,
1lVli ll−1・:達をΔW、接触角度をθ、ス
ラブ(slの速度をV、先端位置検出器(4)からスラ
ブ(sl先端か当接する竪ロール(1)外周1での距離
をj1スラノ′(S)が先端位置を検出されてから距離
l′だけ進むに゛戎−4−る時間をT’ secとする
と、
# : (l R51nθ −−(ii)’r′= 1
’/V ’ −・−(ililとなり、θ及びT′は幅
圧下すべきスラブにより決まっているからfiii)式
よりT′がまる。The distance from the tip position detector (4) to the center of the vertical roll (1) is l, and the radius of the vertical roll (1) is 1(,
1lVli ll-1: reach is ΔW, the contact angle is θ, the speed of the slab (sl) is V, the distance from the slab (sl tip to the vertical roll (1) outer periphery 1 in contact with the tip of the slab (sl) is j1 Let T' sec be the time it takes for Surano' (S) to move by distance l' after the tip position is detected, then #: (l R51nθ - (ii)'r' = 1
'/V' -.-(ilil), and since θ and T' are determined by the slab whose width is to be rolled down, T' is calculated from formula fiii).
論理回路0〃でめられた時間T′はアンド回路02に送
られ、一方スラブ(slが竪ロール(1)ニ送うれて噛
込1れると、加速度計(6)で検出された信号がアンド
回路θ9に送られ、論理回路(■υ及び加速度計(6)
の両方からアンド回路@へ信号が人力されると、該アン
ド回路(2)よりサーボ弁(8)へ指令信号が出力され
、圧液は管路(9)αO)から圧下シリンダー(3)へ
補充される。圧液の補充量はスラブ(8)の噛込み時に
圧下シリンダー(3)内の液が圧縮される葉とする。又
圧液を圧下シリンダー(3)へ補充する時間はスラブ(
8)先端の板幅誤差が最小となる時間とし、この時間は
予めテストによりめておく。しかして、圧液が圧下シリ
ンダー(3)に補充されると、所定の時間ギヤソゲが締
込寸れるため、スラブ(8)の先端幅精度が良好になる
。The time T' determined by the logic circuit 0 is sent to the AND circuit 02, and on the other hand, when the slab (sl) is fed to the vertical roll (1) and bitten 1, the signal detected by the accelerometer (6) is It is sent to the AND circuit θ9, and the logic circuit (■υ and accelerometer (6)
When a signal is manually input to the AND circuit @, a command signal is output from the AND circuit (2) to the servo valve (8), and the pressure fluid is transferred from the pipe (9) αO) to the reduction cylinder (3). will be replenished. The amount of replenishment of the pressurized liquid is such that the liquid in the compression cylinder (3) is compressed when the slab (8) is bitten. Also, the time to replenish pressure fluid to the pressure reduction cylinder (3) is determined by the slab (
8) Set the time at which the plate width error at the tip is the minimum, and determine this time in advance by testing. When the pressure fluid is replenished into the reduction cylinder (3), the gear saw is tightened for a predetermined period of time, so that the width accuracy of the tip end of the slab (8) is improved.
なお、本発明の実施例においては、圧下シリンダーに圧
液を補充する指令よ、スラブ化W;l′1: [!:’
−置検出後所定の時間経過し且つ力++速度、jlよQ
信号が出力され/こら行うj場合について1.)コ明し
たが、加速度計を使用せずスラブ先端1ガ置険出f&/
Ji定時間経過したら圧液補充の指令を出すようにして
も実施できること、その他、本発明の璧旨を逸脱しない
範囲内で神々変史足加え(E) ;’Lこと、等は勿論
である。In addition, in the embodiment of the present invention, the command to replenish the pressure fluid to the compression cylinder, slab formation W;l'1: [! :'
- A predetermined time has passed after position detection, and force ++ velocity, jl yo Q
Regarding the case where a signal is output/will be performed 1. ), but without using an accelerometer, the tip of the slab could be set at 1 ga f&/
Of course, it can be implemented by issuing a command to replenish the pressure fluid after a certain period of time has elapsed, and other additions to the history of the gods within the scope of the gist of the present invention (E);'L, etc. .
本発明の竪型用延機におりる板幅11i11 fili
l 、’、)J i)、及びその装置によれば、スラブ
噛込み肋に圧−トン′リンダ−の液が圧ホ宿される)(
トたけ該月ユi・/リンダー内に圧液を補充するように
している/こめ、スラブ先端の板幅変化を最少にするこ
とか−Cき、製品の幅寸法精度が良好になり、品質か向
上する、笹掻々の優れた効果をろミし得る。The plate width for the vertical rolling mill of the present invention is 11i11 fili
l,',)Ji), and according to the device, a pressure-ton' cylinder of liquid is retained in the slab-engaging rib)(
Pressure fluid is replenished into the linder, which minimizes changes in the plate width at the tip of the slab, improves the width dimension accuracy of the product, and improves quality. You can also enjoy the excellent effects of bamboo shoots.
第1図は何等補正を行わず先f11″1を幅圧下した場
合のスラブ形状の説明図、第2図は圧1.− ll)ン
ダーの沈込み相当量を初期ギヤノブと17で竪ロールを
締込み幅圧下した場合のスラブ形状の説明図、第6図〜
第5図は本発明の竪型圧延機における板幅制御方法及び
その装置の説明図で、第6図は本発明の方法を実施する
装置の説明図、第4図は第6図に示す装置の先端位置検
出器及び速度検出器の部分の説明図、第5図は第4図の
平面図である。
図中(1)は竪ロール、(3)は圧下シリンダー、(4
)は先端位置検出器、(5)は速度検出器、(6)は加
速度計、(8)はサーボ弁、αηは論理回路、@はアン
ド回路を示す。
特許出願人
石川島播磨重工業株式会社
第1図 第2図
第3図
@4図
Y−・
第5図Figure 1 is an explanatory diagram of the slab shape when the width of f11''1 is first reduced without any correction, and Figure 2 is an explanatory diagram of the slab shape when the width of f11''1 is reduced without making any corrections. An explanatory diagram of the slab shape when the tightening width is reduced, Figure 6~
FIG. 5 is an explanatory diagram of the strip width control method and device for a vertical rolling mill according to the present invention, FIG. 6 is an explanatory diagram of an apparatus for carrying out the method of the present invention, and FIG. 4 is an explanatory diagram of the apparatus shown in FIG. 6. FIG. 5 is a plan view of FIG. 4. In the figure, (1) is a vertical roll, (3) is a reduction cylinder, and (4) is a vertical roll.
) is a tip position detector, (5) is a speed detector, (6) is an accelerometer, (8) is a servo valve, αη is a logic circuit, and @ is an AND circuit. Patent applicant Ishikawajima Harima Heavy Industries Co., Ltd. Figure 1 Figure 2 Figure 3 @ Figure 4 Y-・ Figure 5
Claims (1)
ンダー内の圧液の圧縮量分たけ圧油を補充しスラブ先端
の幅圧下を行うことを特徴とする竪型圧延機における板
幅制御方法。 2)スラブの先端位置を検出する先端位置検出器と、竪
型圧延機へ送られるスラブの速度を検出する速度検出器
と、先端位置検出器と速度検出器で検出された信号より
スラブ先端が竪ロール外周に当接するまでの時間を算出
する装置と、算出された時間の経過後に圧下シリンダー
へ板噛込み時の圧下シリンダー内の液の圧縮量分だけ圧
液を供給する装置を設けたことを特徴とする竪型圧延機
における板幅制御装置。[Scope of Claims] 1) A vertical rolling mill characterized in that when the slab tip is bitten, a reduction cylinder is replenished with pressure oil equal to the amount of compression of the pressure liquid in the reduction cylinder to reduce the width of the slab tip. Plate width control method. 2) A tip position detector detects the tip position of the slab, a speed detector detects the speed of the slab sent to the vertical rolling mill, and the signals detected by the tip position detector and speed detector indicate that the tip of the slab is A device that calculates the time until the vertical roll comes into contact with the outer periphery, and a device that supplies pressurized liquid to the reduction cylinder after the elapse of the calculated time by the amount of compressed liquid in the reduction cylinder when the plate is bitten. A strip width control device for a vertical rolling mill, characterized by:
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58210489A JPS60102217A (en) | 1983-11-09 | 1983-11-09 | Method and apparatus for plate width control in vertical rolling mill |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58210489A JPS60102217A (en) | 1983-11-09 | 1983-11-09 | Method and apparatus for plate width control in vertical rolling mill |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS60102217A true JPS60102217A (en) | 1985-06-06 |
Family
ID=16590190
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP58210489A Pending JPS60102217A (en) | 1983-11-09 | 1983-11-09 | Method and apparatus for plate width control in vertical rolling mill |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60102217A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110508626A (en) * | 2019-07-23 | 2019-11-29 | 北京首钢股份有限公司 | A kind of side compression machine slab method of controlling extrusion |
-
1983
- 1983-11-09 JP JP58210489A patent/JPS60102217A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110508626A (en) * | 2019-07-23 | 2019-11-29 | 北京首钢股份有限公司 | A kind of side compression machine slab method of controlling extrusion |
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