JPS60108103A - Rolling mill having multi-stage rolling mechanism - Google Patents
Rolling mill having multi-stage rolling mechanismInfo
- Publication number
- JPS60108103A JPS60108103A JP21579483A JP21579483A JPS60108103A JP S60108103 A JPS60108103 A JP S60108103A JP 21579483 A JP21579483 A JP 21579483A JP 21579483 A JP21579483 A JP 21579483A JP S60108103 A JPS60108103 A JP S60108103A
- Authority
- JP
- Japan
- Prior art keywords
- rolls
- rolling
- strip
- work
- work rolls
- 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
- 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
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B1/222—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a rolling-drawing process; in a multi-pass mill
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はワークロールをシフトすることによりエツジド
ロップを減少させた多段圧延ｍ、横を有する圧延機に関
する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rolling mill having a multi-high rolling mill in which edge drop is reduced by shifting work rolls.
最近、第１図に示す如く、ストリップＳを周速の異なる
ワークロールａ、ｂに巻き付けて圧延するＲＤ（Ｒｏｌ
ｌｉｎｇ Ｄｒａｗｉｎｇ）圧延法が開発され、圧延荷
重の大幅な減少が可能となり、圧延機の小型化、ロール
摩耗の減少、高張力鋼の如き硬い材料の圧延ができるよ
うになった。Recently, as shown in Fig. 1, RD (Rol
The development of the rolling process has made it possible to significantly reduce rolling loads, allowing for smaller rolling mills, reduced roll wear, and the ability to roll hard materials such as high-strength steel.
更に、ＲＤ圧延法の改良として第２図に示す如く、多段
に配設したり、−クロールａ、ｂ、ｃ、ｄにストリップ
Ｓを巻き付けて、各ワークロールａ、ｂ。Further, as an improvement to the RD rolling method, as shown in FIG. 2, strips S may be arranged in multiple stages, or the strips S may be wound around crawlers a, b, c, and d, and each work roll a, b may be rolled.
ｃ、ｄを夫々異なった周速で回転させつつバックアップ
ロールｅ、ｆ−で圧下し、１．スタンドで多段圧延する
圧延＄１ （Ｎｃｖ Ｃｏｍｐａｃｔ Ｍｉ ｌ Ｉ）
が提案されている。該圧延機においては、低い圧延荷重
で高圧下圧延が可能であり、圧延機を更に小型になし得
るという利点を有する。While rotating c and d at different circumferential speeds, roll them down with backup rolls e and f-, 1. Multi-stage rolling on a stand $1 (Ncv Compact Mil I)
is proposed. This rolling mill has the advantage that high reduction rolling is possible with a low rolling load and that the rolling mill can be further downsized.
しかしながら、圧延荷重はバックアップロールｃ、ｆの
両端の軸箱に加えられるため、バックアップロールｅ、
ｆが軸心力゛゛向に撓み、第３図に示す如く第１ワーク
ロールａ及び第４ワークロールｄもそれに追従して撓み
、黒に第２ワークロールｂ及び第３ワークロールＣも若
干撓む。However, since the rolling load is applied to the axle boxes at both ends of backup rolls c and f, backup roll e,
f is deflected in the direction of the axial center force, and as shown in Fig. 3, the first work roll a and the fourth work roll d also deflect accordingly, and the second work roll b and third work roll C also deflect slightly. nothing.
従って、第１ギヤツプｇ、第２ギヤツプｈ、第３ギ〜ツ
ブｊの夫々でエツジドロップが生じ、最終図に得られる
ストリップは断゛面形状が不良なできなりの板になって
しまう、。又、第９図において実線で示すようにワーク
ロールとストリツブはＢの範囲で接触しているがＡの範
囲では接触していないため、ワークロール表面のへこみ
要形量はＢ部とＡ部で異る。従ってこの変形！ｉＹの差
にもとづく板厚偏差（エツジドロップ）が発生する。Therefore, edge drops occur in each of the first gap g, the second gap h, and the third gear to the tooth j, and the strip obtained in the final drawing becomes a rough plate with a poor cross-sectional shape. Also, as shown by the solid line in Fig. 9, the work roll and the strip are in contact in the range B but not in the range A, so the required amount of indentation on the work roll surface is between the B part and the A part. Different. Hence this transformation! A plate thickness deviation (edge drop) occurs based on the difference in iY.
本発明は上述の従来の欠点を除去する目的で、多段に配
設したワークロールのうち少なくとも１本のワークロー
ルを該ワークロールの軸心方向にシフトすることにより
、圧延時のワークロールの４３ｐみを減少させ、ストリ
ップのエツジドロップを軽減せしめた多段圧延機構を有
する圧延機にかかるものである。In order to eliminate the above-mentioned conventional drawbacks, the present invention shifts at least one of the work rolls arranged in multiple stages in the axial direction of the work roll, so that the 43p of the work roll during rolling is improved. The present invention relates to a rolling mill having a multi-stage rolling mechanism that reduces edge drop of the strip.
以下、本発明の実施例を図面を参明しつつ説明する。Embodiments of the present invention will be described below with reference to the drawings.
第４図及び第５図は本発明の第一実施例であり、」：、
１ζバックアップロール５．６の間に４本のワークロー
ル１．２．３．４を配設し、そのうちの第２及び第３ワ
ークロール２．３を該ワークロール２．３の軸心方向に
シフトし得るようにした例である。該ワークロール２，
３をシフトさせるための手段としては、例えば該ワーク
ロール２．３の両端を夫々支持する軸箱をハウジング内
に摺動自在に配設し、左右の軸箱ごと該ワークロール２
，３をシリンダ等によりシフトし得るようにする。4 and 5 show a first embodiment of the present invention,":
Four work rolls 1.2.3.4 are arranged between the 1ζ backup rolls 5.6, and the second and third work rolls 2.3 are arranged in the axial direction of the work rolls 2.3. This is an example in which it can be shifted. The work roll 2,
As a means for shifting the work rolls 2 and 3, for example, axle boxes that support both ends of the work rolls 2 and 3 are slidably disposed in a housing, and the work rolls 2 and 3 are moved together with the left and right axle boxes.
, 3 can be shifted by a cylinder or the like.
ストリップ１ｓを第１ギヤツプ１１、第２ギヤツプ１２
、第３ギヤツプ１３の順に挿通し、第２ワークロール２
及゛び第３ワークロール３に巻き付けて圧延する際、第
５図に示す如く第２及び第３ワークロール２．３を互い
に逆方向にシフトさせ、第２ギヤツプ１２におけるスト
リップＳの一方（第５図において右側）の端に第３ワー
クロール３の右側端部が近接し、該ストリップＳの他方
（第５図において左ｔｉｌｌ）の端に第２ワークロール
２の左側＠部が近接した位置としておく。The strip 1s is connected to the first gap 11 and the second gap 12.
, the third gap 13 in this order, and the second work roll 2
When winding and rolling the strip around the third work roll 3, the second and third work rolls 2.3 are shifted in mutually opposite directions as shown in FIG. The right end of the third work roll 3 is close to the end of the strip S (right side in FIG. 5), and the left side of the second work roll 2 is close to the other end of the strip S (left till in FIG. 5) I'll leave it as that.
上、下のバックアップロール５．６で圧下しつつ巻き付
は実速圧延すると、第２及び第３ワークロール２，３が
夫々反対方向にシフトされているため、第１と第２、第
２と第３、第３と第４の各ワークロールの重なり合う範
囲が夫々縮少し、バックアップロール５，６の撓みによ
るワークロール１．２．３．４への影響が小さくなり、
各ワークロール１．２．３．４の撓みも＠減され、又第
９図において二点鎖線で示すように、ワークロールをシ
フトさせるとＡ部に相当する部分が減少又は無くなるこ
とによりへこみ変形分布が幅方向に一様に近つくため、
各ギャップ１１．１２．１３におけるストリップＳ′、
４ｒ、 、ｉ’ｌのエツジドロップが大幅に減少する
。すなわち、第２ワークロール２のシフトにより第１及
び第２ギャップ１．１２におけるストリップｓ′、Ｓ″
の左側のエツジドロップが特に倣少され、又第３ワーク
ロール３のシフトにより第２及び第３ギャップ１２．１
３におけるストリップｓ′ｒ、 、、ｎの右側のエツジ
ドロップが特に減少され形状の良好な板が得られる。When the winding is rolled at actual speed while being rolled down by the upper and lower backup rolls 5 and 6, the second and third work rolls 2 and 3 are shifted in opposite directions, so the first and second work rolls 5 and 6 are rolled. The overlapping ranges of the third, third and fourth work rolls are respectively reduced, and the influence of the deflection of the backup rolls 5 and 6 on the work rolls 1.2.3.4 is reduced,
The deflection of each work roll 1.2.3.4 is also reduced, and as shown by the two-dot chain line in Fig. 9, when the work roll is shifted, the portion corresponding to part A is reduced or eliminated, causing dent deformation. Because the distribution approaches uniformity in the width direction,
a strip S' in each gap 11.12.13,
Edge drops of 4r, , i'l are significantly reduced. That is, due to the shift of the second work roll 2, the strips s', S'' in the first and second gaps 1.12
The edge drop on the left side is particularly reduced, and the second and third gaps 12.1 are
The edge drop on the right side of the strips s'r, .
第６図は本発明の第二実施例であり、前記第１実ＪＩＩ
！１例と略同様の４７１．成において、第３、第４ワー
クロール３，４をシフトし得るようにした例である。第
６図中第５図と同一の符号は同一のものを示す。FIG. 6 shows a second embodiment of the present invention, in which the first embodiment JII
! 471, which is almost the same as the first example. This is an example in which the third and fourth work rolls 3 and 4 can be shifted during construction. In FIG. 6, the same reference numerals as in FIG. 5 indicate the same parts.
本実施例においては、′第２ギャップ１２及び第３ギヤ
ツプ１３におけるストリップイ′、イ“のエツジドロッ
プを減少でき、特に最終パスのエツジドロップを大幅に
減少できる。In this embodiment, it is possible to reduce the edge drop of the strips in the second gap 12 and the third gap 13, and in particular, the edge drop of the final pass can be significantly reduced.
第７図は本発明の第三実施例であり、１１１１記第１実
施例と略同様の構成において、第２、第３、第４ワーク
ロール２．３．４をシフトし得るようにした例である。FIG. 7 shows a third embodiment of the present invention, in which the second, third, and fourth work rolls 2.3.4 can be shifted in substantially the same configuration as the first embodiment described in 1111. It is.
第７図中第５ｉと同一の符号は同一のものを示す。In FIG. 7, the same reference numerals as 5i indicate the same parts.
本実施例においては、第１ギヤツプ１１におけるストリ
ップＳ′のエツジドロップを減少し、更に第２及び第３
ギャップ１２．１３におけるストリップＺ′、イ“のエ
ツジドロップを大幅に減少することができ、形状の良好
な板が得られる。In this embodiment, the edge drop of the strip S' in the first gap 11 is reduced, and the edge drop of the strip S' in the first gap 11 is reduced.
The edge drops of the strips Z' and I" in the gaps 12 and 13 can be significantly reduced, and a plate with a good shape can be obtained.
第８図は本発明の第四実施例であり、６４１記第１実施
例と略同様の構成において、第１、ｆｆ１２、第３、第
４ワークロール１．２．３．４をシフトし得るようにし
た例である。第８図中第５図と同一の符号は同一のもの
を示す。FIG. 8 shows a fourth embodiment of the present invention, in which the first, ff12, third, and fourth work rolls 1.2.3.4 can be shifted in substantially the same configuration as the first embodiment described in 641. This is an example of how to do this. In FIG. 8, the same reference numerals as in FIG. 5 indicate the same parts.
本実施例においては、第１及び第３ワークロ−ル１．３
と第２及び第４ワークロール２．４とをＩＩ：いに逆り
向にシフトシて巻（Ｊ実速圧延するのて・第１１第２・
第３ギャップ１１．１２．１３におけるストリップ、＋
、 Ｓ″、 ｄ′Ｔのエツジドロップを大幅に減少でき
、ストリップＳの形状制御上）ρも優れた効果か１７ら
れる。In this embodiment, the first and third work rolls 1.3
and the second and fourth work rolls 2.4.
Strip in the third gap 11.12.13, +
, S'', d'T can be greatly reduced, and the shape control of the strip S) is also excellent.
以」−の各実施例において、各ワークロールをシフトす
る際はストリップから各ワークロールを離して移動させ
、ストリップに傷がつくのを１１）ｊ ＋ｌする。In each of the following embodiments, when shifting each work roll, each work roll is moved away from the strip to prevent scratches on the strip.
なお、本発明のしくり圧延機）１６を有する圧延機は上
述の実施イタ」のみに限定されるものではなく、ワーク
ロールを２本以上シフトさせるばかりでなく、１本のシ
フトでも同手工の効果が得られること、或は２木以りの
任危の組合せでロールシフトするようにすること、更に
ワークロールを４木配晟′する圧延機ばかりでなく３本
以上のワークロールを備えて巻付実速圧延する圧延機で
あればｊＱ用し得ること、メロールはｊ詞端部がテーバ
になっているものを使用し、テーパの開始点を板端に合
わせるようにしてもよいこと、等本発明の要旨を逸脱し
ない範囲内において種々変更を加え得ることは勿論であ
る。 −５以上述べたように本発明の多段圧延機構を有
する圧延機によれば、少なくとも１本のワークロールを
該ワークロールの軸心方向にシフトさせるようにしたの
で、圧延時のワークロールの撓みを減少でき、ストリッ
プのエツジドロップを軽減できる等の優れた効果を発揮
する。Note that the rolling mill having the rolling mill (16) of the present invention is not limited to the above-mentioned implementation method, and can not only shift two or more work rolls, but also shift two or more work rolls even in one shift. It is desirable to be able to obtain the desired effect, or to be able to shift rolls in arbitrary combinations of two or more rolls, and to be equipped not only with a rolling mill that has four work rolls but also with three or more work rolls. It is possible to use JQ as long as it is a rolling mill that performs winding and rolling at real speed, and it is also possible to use Melol with a tapered end so that the starting point of the taper is aligned with the sheet end. It goes without saying that various changes may be made without departing from the gist of the present invention. -5 As described above, according to the rolling mill having the multi-stage rolling mechanism of the present invention, at least one work roll is shifted in the axial direction of the work roll, so that the deflection of the work roll during rolling is reduced. It has excellent effects such as reducing the edge drop of the strip.
第１図は従来のＲＤ圧延法の説明図、第２図は従来の１
スタンド多段圧延機の説明図、第３図は第２図における
圧延機の圧延状態を示す説明図、第４図・は本発明の圧
延機の第一実施例の説 ′引回、第５図は第４図のＶ−
Ｖ方向矢視図、第６図は本発明の圧延機の第二実施例の
説明図、第７図は本発明の圧延機の第三実施例の説明図
、第８図は本発明の圧延機の第四実施例の説明図、第９
図は従来の圧延機及び本発明の圧延機による圧延状態を
示す説明図である。
ｌは第１ワークロール、２は第２ワークロール、３は第
３ワークロール、４は第４ワークロール、１１はｖＳｌ
キャップ、１２は第２ギヤツプ、１３は第３ギヤツプ、
、 ｓ′、 ｒｒ、 ｒｎはストリップを示す。
９１ 訂 出 １９１ 人
石川島播磨重工業株式会社
＃Ｉ 訂 出 １頭 人
新日本製鐵株式會社
４５＋ 、ｊ’Ｔ 出 １頭 人
東京芝浦電気株式会社
特許出願人代理人
第１頁の続き
０発 明 者 山 口 進
＠発明者田中 明弘
北九州市へ幡東区枝光１−１−１ 新日本製鐵株式會社
八場内Figure 1 is an explanatory diagram of the conventional RD rolling method, and Figure 2 is an illustration of the conventional RD rolling method.
FIG. 3 is an explanatory diagram showing the rolling state of the rolling mill in FIG. 2; FIG. 4 is an explanation of the first embodiment of the rolling mill of the present invention; FIG. is V- in Figure 4.
V direction arrow view, FIG. 6 is an explanatory diagram of the second embodiment of the rolling mill of the present invention, FIG. 7 is an explanatory diagram of the third embodiment of the rolling mill of the present invention, and FIG. 8 is a diagram of the rolling mill of the present invention. Explanatory diagram of the fourth embodiment of the machine, No. 9
The figure is an explanatory view showing rolling conditions by a conventional rolling mill and a rolling mill of the present invention. l is the first work role, 2 is the second work role, 3 is the third work role, 4 is the fourth work role, 11 is vSl
cap, 12 is the second gap, 13 is the third gap,
, s', rr, rn indicate strips. 91 Rev. 191 Ishikawajima-Harima Heavy Industries Co., Ltd. #I Rev. 1 Nippon Steel Corporation 45+, j'T 1 Nipp. Tokyo Shibaura Electric Co., Ltd. Patent Applicant's Agent Page 1 Continuation 0 Invention Susumu Yamaguchi @ Inventor Tanaka Akihiro Kitakyushu City 1-1-1 Edamitsu, Hatto-ku, Nippon Steel Corporation Yabachi
Claims (1)
けるか、ロールから離して板進行方向を変えて圧延する
圧延機において、少なくとも１本のワークロールを該ワ
ークロールの軸心方向にシフトし得るよう構成したこと
を特徴とする多段圧延機構を有する圧延機。1) In a rolling mill that rolls a strip by winding it around work rolls arranged in multiple stages or by moving the strip away from the rolls and changing the traveling direction of the strip, at least one work roll can be shifted in the axial direction of the work roll. A rolling mill having a multi-stage rolling mechanism, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21579483A JPS60108103A (en) | 1983-11-16 | 1983-11-16 | Rolling mill having multi-stage rolling mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21579483A JPS60108103A (en) | 1983-11-16 | 1983-11-16 | Rolling mill having multi-stage rolling mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60108103A true JPS60108103A (en) | 1985-06-13 |
Family
ID=16678348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21579483A Pending JPS60108103A (en) | 1983-11-16 | 1983-11-16 | Rolling mill having multi-stage rolling mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60108103A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS517635A (en) * | 1974-07-11 | 1976-01-22 | Kayaba Industry Co Ltd | EKIATSUSHI KIDORYOKUKAJITORISOCHINIOKERU EKIATSUHANRYOKUSOCHI |
| JPS5659510A (en) * | 1979-10-22 | 1981-05-23 | Nippon Steel Corp | Rolling method for strip |
-
1983
- 1983-11-16 JP JP21579483A patent/JPS60108103A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS517635A (en) * | 1974-07-11 | 1976-01-22 | Kayaba Industry Co Ltd | EKIATSUSHI KIDORYOKUKAJITORISOCHINIOKERU EKIATSUHANRYOKUSOCHI |
| JPS5659510A (en) * | 1979-10-22 | 1981-05-23 | Nippon Steel Corp | Rolling method for strip |
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