JPH0616890B2 - Rolled material plate shape adjustment device - Google Patents
Rolled material plate shape adjustment deviceInfo
- Publication number
- JPH0616890B2 JPH0616890B2 JP60231362A JP23136285A JPH0616890B2 JP H0616890 B2 JPH0616890 B2 JP H0616890B2 JP 60231362 A JP60231362 A JP 60231362A JP 23136285 A JP23136285 A JP 23136285A JP H0616890 B2 JPH0616890 B2 JP H0616890B2
- Authority
- JP
- Japan
- Prior art keywords
- roll
- rolling mill
- plate
- rolling
- rolled material
- 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 - Lifetime
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
- B21D1/05—Stretching combined with rolling
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
- B21B13/14—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories having counter-pressure devices acting on rolls to inhibit deflection of same under load; Back-up rolls
- B21B13/142—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories having counter-pressure devices acting on rolls to inhibit deflection of same under load; Back-up rolls by axially shifting the rolls, e.g. rolls with tapered ends or with a curved contour for continuously-variable crown CVC
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B2015/0071—Levelling the rolled product
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、少なくとも２個のロールを有する圧延機によ
り板状の圧延材の圧延を行ない、板形状を調整するため
の装置に関わるものである。TECHNICAL FIELD The present invention relates to a device for rolling a plate-shaped rolled material by a rolling mill having at least two rolls and adjusting the plate shape. is there.
（従来の技術） スキンパス圧延あるいは冷間圧延における製品精度はま
すます厳しくなつてきている。そのうち長手方向の板厚
精度については、熱間あるいは冷間圧延工程における油
圧圧下装置を用いた自動板厚制御により、実用的には十
分満足できるレベルに達している。(Prior Art) Product precision in skin pass rolling or cold rolling is becoming more and more severe. Among them, the plate thickness accuracy in the longitudinal direction has reached a practically sufficient level by automatic plate thickness control using a hydraulic pressure reduction device in the hot or cold rolling process.
ところが、巾方向の板厚精度と、その結果としての耳
波、中伸びなどの板形状については、種々の圧延機、圧
延方法が提案されているものの未だ開発の段階であり、
その効果についても限定されたものであると共に、それ
ぞれのデメリツトを有しているのが現状である。However, with regard to the plate thickness accuracy in the width direction and the resulting plate shape such as selvedges and medium elongation, although various rolling mills and rolling methods have been proposed, they are still in the development stage,
The effect is limited, and each has its own demerits.
例えば、近年巾方向板厚制御性能の高い圧延機として、
６段式圧延機（特開昭４７−２９２６０号公報）クロス
ロール式圧延機（特開昭５６−１３１００５号公報）、
可変クラウンロール式圧延機（特開昭５９−１５３５０
号公報）がある。６段式圧延機は、従来の４段式圧延機
がロールベンデイング、ロールクラウンにより巾方向の
板厚を制御しようとするのに対し、ワークロール、バツ
クアツプロールの間に新たにシフト可能な中間ロールを
設け、圧延材の板巾に応じて中間ロール段付部を変える
ことにより、より高い巾方向板厚精度を得ようとするも
のである。For example, as a rolling mill with high width-direction plate thickness control performance in recent years,
6-high rolling mill (JP-A-47-29260), cross-roll rolling mill (JP-A-56-131005),
Variable crown roll type rolling mill (Japanese Patent Laid-Open No. 59-15350)
Issue gazette). In the 6-high rolling mill, the conventional 4-high rolling mill tries to control the strip thickness in the width direction by roll bending and roll crown, whereas a new shift is possible between the work roll and the back up roll. By providing an intermediate roll and changing the stepped portion of the intermediate roll according to the strip width of the rolled material, it is intended to obtain higher strip thickness accuracy in the width direction.
また、クロスロール式圧延機は、上ワークロールと下ワ
ークロールを、軸芯がねじれの位置となるよう配置し、
ねじれ角の大きさによつて等価なロール間隙が変化する
ことを利用して、板クラウンを制御しようとするもので
ある。可変クラウンロール式圧延機は、バツクアツプロ
ールのアーバとスリーブの間に高い液圧を付加し、スリ
ーブの膨み量を変え、巾方向の板厚を制御しようとする
ものである。Further, the cross roll type rolling mill arranges the upper work roll and the lower work roll so that the shaft center is in a twisted position,
The purpose of this is to control the plate crown by utilizing the fact that the equivalent roll gap changes depending on the size of the twist angle. The variable crown roll type rolling mill is intended to control the plate thickness in the width direction by applying a high hydraulic pressure between the arbor of the back up roll and the sleeve to change the bulge amount of the sleeve.
これらの圧延機は、すべてロールバイト間における板巾
方向の剛性と、ロールバイトにおけるプロフイールをメ
カニカルに調整しようという原理に基づいている。その
ために、ロール組替やメンテナンスのために、可能な限
りシンプルであることが要求されるミル本体が、従来の
４段式圧延機に比べて極めて複雑なものとなつている。These rolling mills are all based on the rigidity in the width direction between roll bites and the principle of mechanically adjusting the profile of the roll bites. For this reason, the mill main body, which is required to be as simple as possible for roll replacement and maintenance, is extremely complicated as compared with the conventional four-high rolling mill.
すなわち、６段式圧延機は、ロール本数が２本増すた
め、ロール原単位が悪くなると共に、広いシヨツプスペ
ースを必要とするのみならず、中間ロールをシフトする
ための装置を上下それぞれに必要とするため、複雑でメ
ンテナンス性の悪い圧延機となつている。また、クロス
ロール式圧延機は、ワークロールのみ、あるいはワーク
ロールとバツクアツプロールをペアで、ライン方向に対
して傾斜する必要があり、しかもこのようなクロスロー
ル圧延を行なうと、大きなスラスト力が発生するため、
大規模で複雑なロール傾斜装置を必要とする。That is, in the 6-high rolling mill, since the number of rolls is increased by 2, the roll unit is deteriorated, and not only a large shop space is required, but also a device for shifting the intermediate roll is required for each of the upper and lower sides. Therefore, the rolling mill is complicated and has poor maintainability. Further, in the cross roll type rolling mill, it is necessary to incline the work roll alone or a pair of the work roll and the back up roll with respect to the line direction, and when such a cross roll rolling is performed, a large thrust force is generated. Because it occurs
Requires large and complex roll tilters.
可変ロールクラウン式圧延機は、回転するバツクアツプ
ロールに高圧の液体を供給する必要があるため、新たな
高圧液圧装置を設置すると共に、耐久性のあるロータリ
ージヨイントを、ミル本体に付属させる必要がある。Since the variable roll crown type rolling mill needs to supply high-pressure liquid to the rotating back-up roll, a new high-pressure hydraulic device is installed and a durable rotary joint is attached to the mill body. There is a need.
以上のようにこれらの圧延機は、圧延機本体のシンプル
さ、メンテナンス性の良さを売り渡す形で、板巾方向の
板厚精度制御の向上を図つたものとなつている。さら
に、圧延機の複雑化、精密化にともない、圧延機の価格
も従来の圧延機に比べて高価なものとなつている。As described above, these rolling mills aim to improve the strip thickness precision control in the strip width direction by selling the rolling mill body in terms of simplicity and maintainability. Further, as the rolling mill becomes more complicated and more precise, the price of the rolling mill becomes more expensive than the conventional rolling mill.
（発明が解決しようとする問題点） 本発明は圧延機本体を複雑なものにすることなく、従来
の４段圧延機あるいは２段圧延機においても、大きな形
状調整能力を有し、６段式圧延機等の形状調整能力の高
い圧延機と組み合せた場合には、更に大きな形状調整能
力を付加することができる圧延装置を提供することにあ
る。(Problems to be Solved by the Invention) The present invention has a large shape adjusting ability even in a conventional four-high rolling mill or two-high rolling mill without complicating the rolling mill main body, and has a six-high rolling mill. An object of the present invention is to provide a rolling apparatus that can add a larger shape adjusting capability when combined with a rolling machine such as a rolling machine having a high shape adjusting ability.
（問題点を解決するための手段） 本発明は圧延機の入側および／または出側に、直径がロ
ール胴長方向で異なる少なくとも２本のロールを、圧延
材の通過する方向へ所定間隔ずらせ配置し、かつ該上下
ロールを軸方向へ相対移動自在に配設し、圧延材の板幅
方向の張力分布を変更可能にしてなることを特徴とする
圧延材板形状の調整装置である。(Means for Solving Problems) According to the present invention, at least two rolls having different diameters in the roll cylinder length direction are provided on the inlet side and / or the outlet side of a rolling mill so as to be displaced by a predetermined distance in the passing direction of the rolled material. The apparatus for adjusting the shape of a rolled material plate is characterized in that the upper and lower rolls are arranged so as to be relatively movable in the axial direction, and the tension distribution in the plate width direction of the rolled material can be changed.
（作用） 本発明は圧延機の前面あるいは後面あるいはその両側
に、軸方向に直径が一様でない少なくとも一組以上の上
下ローラーを、該上下ローラー形状が略点対称になるよ
うに、圧延材の通過方向にある間隔をおいて上下交互を
配置し、圧延条件に応じて上下ローラーを軸方向に相対
移動して、圧延材が通過する板道の長さを巾方向で変え
ることにより、圧延材の巾方向の張力を変化させて、圧
延後の板形状を調整させることにある。(Operation) The present invention includes at least one set of upper and lower rollers having a non-uniform diameter in the axial direction on the front surface or the rear surface of the rolling mill, or on both sides thereof, so that the shape of the rolled material is substantially point symmetric. By arranging the upper and lower layers alternately at a certain interval in the passing direction, the upper and lower rollers are moved relative to each other in the axial direction according to the rolling conditions, and the length of the plate path through which the rolled material passes changes in the width direction It is to adjust the plate shape after rolling by changing the widthwise tension.
（実施例） 第１図において、１は前面張力制御装置、２は圧延機、
３はデフレクターピンチロールであり、タンデム圧延機
の圧延機間に本発明を適用する場合は、デフレクターピ
ンチンロール３の位置に別の圧延機が配置される。４は
前面張力制御装置を構成する上ロール５は下ロールであ
り、これらのロールは例えば第２図において、シリンダ
ー６で軸方向に移動可能に配設している。(Example) In FIG. 1, 1 is a front tension control device, 2 is a rolling mill,
3 is a deflector pinch roll, and when the present invention is applied between rolling mills of a tandem rolling mill, another rolling mill is arranged at the position of the deflector pinching roll 3. The upper roll 5 and the lower roll 4 constituting the front surface tension control device are arranged so as to be axially movable by a cylinder 6 in FIG. 2, for example.
上ロール４、下ロール５は、それぞれたとえば第２図に
示すような外径プロフイールを有しており、上ロール４
と下ロール５の外径プロフイールが略点対称となるよう
配置されている。The upper roll 4 and the lower roll 5 each have an outer diameter profile as shown in FIG. 2, for example.
And the outer diameter profile of the lower roll 5 are arranged so as to be substantially point-symmetrical.
上ロールと下ロールの位置が、第２図(a)の状態にある
時、上下ロールの軸方向移動量は０であり、上下ロール
間を通過する材料の板道の長さは幅方向で一定となる。
したがつて、幅方向の張力分布は一定となり、圧延現象
に及ぼす張力の影響も幅方向で一定となる。When the positions of the upper roll and the lower roll are in the state of FIG. 2 (a), the axial movement amount of the upper and lower rolls is 0, and the length of the material path of the material passing between the upper and lower rolls is the width direction. It will be constant.
Therefore, the tension distribution in the width direction is constant, and the effect of tension on the rolling phenomenon is also constant in the width direction.
ここで第２図(b)のように、上ロールを左に、下ロール
を右に軸方向に移動させると、上下ロール間を通過する
材料の板道の長さが幅方向で変化する。すなわち、第２
図(b)において、断面ＡＡを通る板材は、上下ロールと
もに直径の大きい部分を通ることになり、板材は第３図
に示す板道８を通ることになる。Here, as shown in FIG. 2 (b), when the upper roll is moved to the left and the lower roll is moved to the right in the axial direction, the length of the sheet path of the material passing between the upper and lower rolls changes in the width direction. That is, the second
In FIG. 2B, the plate material passing through the cross section AA passes through a portion having a large diameter in both the upper and lower rolls, and the plate material passes through the plate path 8 shown in FIG.
一方、第２図(b)において断面ＢＢを通る板材は、上下
ロールともに直径の小さい部分を通ることになり、板材
は第３図に示す板道７を通ることになる。上下ロールの
軸方向移動を、板幅中央に対して対称とすれば、第２図
(b)の状態では、板材中央部では板道が長く、板材両端
部では、板道が短くなることになる。したがつて、幅方
向の張力分布は、板材中央部の方が両端部よりも高くな
ることになる。On the other hand, the plate material passing through the cross section BB in FIG. 2 (b) passes through a portion having a small diameter in both the upper and lower rolls, and the plate material passes through the plate path 7 shown in FIG. If the axial movement of the upper and lower rolls is symmetrical with respect to the center of the plate width,
In the state of (b), the plate path is long at the center of the plate material, and the plate path is short at both ends of the plate material. Therefore, the tension distribution in the width direction is higher in the central portion of the plate material than in both end portions.
一方、第２図(c)のように、上ロールを右に、下ロール
を左に移動させると、第２図(b)の場合とは逆に、板材
中央部で板道が短く、板材両端部で板道が長くなり、幅
方向張力分布は両端部が中央より高くなることになる。
幅方向の張力分布差は、上下ロールの移動量によつて変
化させることができ、目的とする板形状に応じて、任意
に張力差を与えることが可能である。On the other hand, when the upper roll is moved to the right and the lower roll is moved to the left as shown in Fig. 2 (c), the plate path is short at the center of the plate, contrary to the case of Fig. 2 (b). The plate path becomes longer at both ends, and the tension distribution in the width direction becomes higher at both ends than in the center.
The difference in tension distribution in the width direction can be changed according to the moving amount of the upper and lower rolls, and it is possible to give a tension difference arbitrarily according to the target plate shape.
ここで、本発明による幅方向の板道の変化について計算
した例を説明する。第４図は計算に用いた次のロール径
とその位置を示す。図において、ｌ１＝400mm、ｌ２＝3
00mm、IM＝120mm、ｄ＝10-6x3-2x+300（ｘはロールバレ
ル中心を原点として軸方向に座標をとる。） 第５図は、板幅1000mmで、ロールを50mm移動させた場合
の板道の差を示す。(a)はロールプロフイールを示し、
(b)は板端部の板道を基準として、板幅方向の板道の差
をパーセント表示したものである。同様に、第６図は板
幅500mmでロールを50mm移動させた場合の板道の差を示
す。Here, an example of calculating the change of the board path in the width direction according to the present invention will be described. FIG. 4 shows the next roll diameter used in the calculation and its position. In the figure, l 1 = 400 mm, l 2 = 3
00mm, IM = 120mm, d = 10 -6 x 3 -2x + 300 (x is the coordinate in the axial direction with the roll barrel center as the origin.) Fig. 5 shows a plate width of 1000mm and the roll moved 50mm. The difference of the board road in the case is shown. (a) shows a roll profile,
(b) shows the difference in the plate width in the plate width direction as a percentage with reference to the plate path at the plate edge. Similarly, FIG. 6 shows the difference in plate path when the roll is moved 50 mm with a plate width of 500 mm.
第５図、第６図から明らかなように、本計算例ではロー
ルを50mm移動させるだけで、板道の差は１％以上にもな
ることがわかる。一般に板道の差が張力に及ぼす影響は
大きいとされるため、本発明を実機に応用した場合は、
ロールプロフイールをよりフラツトに近い形に、かつロ
ールの移動量をより少くすることが可能である。また、
本発明により、従来の方法では制御範囲の小さかつた狭
幅材に対しても、大きな形状制御能力を持つことが可能
である。As is clear from FIGS. 5 and 6, it can be seen that in this calculation example, only by moving the roll by 50 mm, the difference between the board paths becomes 1% or more. In general, it is said that the difference in the board path has a large effect on the tension. Therefore, when the present invention is applied to an actual machine,
It is possible to make the roll profile more flat and to reduce the amount of roll movement. Also,
According to the present invention, it is possible to have a large shape control capability even for a narrow material whose control range is small in the conventional method.
（発明の効果） 本発明により、圧延機入側および／または出側における
圧延材の幅方向張力分布を変えることができ、圧延材の
板形状を制御することが可能となる。(Effects of the Invention) According to the present invention, it is possible to change the width-direction tension distribution of a rolled material on the inlet side and / or the outlet side of a rolling mill, and to control the plate shape of the rolled material.
本発明による方法を用いれば、(1)装置、機構が複雑で
メンテナンスが困難、かつ設備のきわめて高価な圧延機
を用いることなく、また狭幅材に対しても大きな形状制
御効果を得ることができる。(2)本発明による形状制御
装置は圧延機に直接設置されるものではないので、既存
の４段圧延機あるいはダル圧延等に用いられる２段圧延
機などを改造することなく、容易にきわめて大きな形状
制御能力をもたせることが可能となる。などの大きな技
術的、経済的メリツトをもたらす。By using the method according to the present invention, (1) it is possible to obtain a large effect of controlling the shape of a narrow material without using a rolling machine that is complicated in equipment and mechanism, difficult to maintain, and extremely expensive equipment. it can. (2) Since the shape control device according to the present invention is not directly installed in the rolling mill, it is easily and extremely large without modifying the existing 4-high rolling mill or 2-high rolling mill used for dull rolling or the like. It becomes possible to have shape control ability. It brings great technical and economic merits.
第１図は本発明の１実施例の説明図、第２図は上下ロー
ルを移動させた時の状態の説明図、第３図はロール径に
よる板道の変化の説明図、第４図は本発明の効果を計算
したモデルの説明図、第５図、第６図は本発明の計算結
果の図表である。 １：張力制御装置、２：圧延機 ３：デフレクターロール、４：上ロール ５：下ロール、６：シリンダー ７：ロール直径の小さい部分を通つた時の板道 ８：ロール直径の大きい部分を通つた時の板道FIG. 1 is an explanatory view of one embodiment of the present invention, FIG. 2 is an explanatory view of a state in which upper and lower rolls are moved, FIG. 3 is an explanatory view of a change of a board path depending on a roll diameter, and FIG. Explanatory drawing of the model which calculated the effect of this invention, FIG. 5, FIG. 6 is a chart of the calculation result of this invention. 1: Tension control device, 2: Rolling mill 3: Deflector roll, 4: Upper roll, 5: Lower roll, 6: Cylinder 7: Roll path when passing through a portion with a small roll diameter 8: Through a portion with a large roll diameter Board road at the time of climbing
───────────────────────────────────────────────────── フロントページの続き (72)発明者 内山 英三 福岡県北九州市戸畑区大字中原46―59 新 日本製鐵株式会社戸畑プラント製作所内 (72)発明者 柳楽 紀元 福岡県北九州市八幡東区枝光１−１―１ 新日本製鐵株式会社八幡製鐵所内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Eizo Uchiyama 46-59, Nakahara, Tobata-ku, Kitakyushu, Fukuoka Prefecture 46-59, Tobata Plant Works, Nippon Steel Corp. Emitsu 1-1-1 Inside the Yawata Works, Nippon Steel Corporation
Claims (1)
がロール胴長方向で異なる少なくとも２本のロールを、
圧延材の通過する方向へ所定間隔ずらせ配置し、かつ該
上下ロールを軸方向へ相対移動自在に配設し、圧延材の
板幅方向の張力分布を変更可能にしてなることを特徴と
する圧延材板形状の調整装置。1. At least two rolls having different diameters in a roll cylinder length direction are provided on an inlet side and / or an outlet side of a rolling mill.
Rolling characterized in that the rolled material is arranged with a predetermined gap in the passing direction, and the upper and lower rolls are arranged so as to be relatively movable in the axial direction, so that the tension distribution in the plate width direction of the rolled material can be changed. Material plate shape adjustment device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60231362A JPH0616890B2 (en) | 1985-10-18 | 1985-10-18 | Rolled material plate shape adjustment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60231362A JPH0616890B2 (en) | 1985-10-18 | 1985-10-18 | Rolled material plate shape adjustment device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6293016A JPS6293016A (en) | 1987-04-28 |
| JPH0616890B2 true JPH0616890B2 (en) | 1994-03-09 |
Family
ID=16922430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60231362A Expired - Lifetime JPH0616890B2 (en) | 1985-10-18 | 1985-10-18 | Rolled material plate shape adjustment device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0616890B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3634367A1 (en) * | 1986-10-09 | 1988-04-21 | Schloemann Siemag Ag | ROLLER ARRANGEMENT FOR DEFORM-FREE TREATMENT OF MOVING TAPE-SHAPED PRODUCTS |
| IT1292458B1 (en) * | 1997-07-02 | 1999-02-08 | Demag Italimpianti Spa | METHOD OF ROLLING A METAL TAPE AND ROLLING MILL FOR IMPLEMENTING THE METHOD |
| DE10218234A1 (en) * | 2002-04-24 | 2003-11-06 | Sms Demag Ag | Rolling device with a number of work rolls arranged in a roll stand |
| CN112024611B (en) * | 2020-07-30 | 2021-09-14 | 东北大学 | Tension deviation rectifying control method and device for pinch roll in thin strip continuous casting |
-
1985
- 1985-10-18 JP JP60231362A patent/JPH0616890B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6293016A (en) | 1987-04-28 |
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