JPS5893504A - Rolling mill - Google Patents

Rolling mill

Info

Publication number
JPS5893504A
JPS5893504A JP19310781A JP19310781A JPS5893504A JP S5893504 A JPS5893504 A JP S5893504A JP 19310781 A JP19310781 A JP 19310781A JP 19310781 A JP19310781 A JP 19310781A JP S5893504 A JPS5893504 A JP S5893504A
Authority
JP
Japan
Prior art keywords
rolls
roll
bending
rolled
work
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.)
Granted
Application number
JP19310781A
Other languages
Japanese (ja)
Other versions
JPH0112564B2 (en
Inventor
Isao Imai
功 今井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IHI Corp
Original Assignee
IHI Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by IHI Corp filed Critical IHI Corp
Priority to JP19310781A priority Critical patent/JPS5893504A/en
Publication of JPS5893504A publication Critical patent/JPS5893504A/en
Publication of JPH0112564B2 publication Critical patent/JPH0112564B2/ja
Granted legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B37/00Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/28Control of flatness or profile during rolling of strip, sheets or plates
    • B21B37/42Control of flatness or profile during rolling of strip, sheets or plates using a combination of roll bending and axial shifting of the rolls

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)

Abstract

PURPOSE:To improve the shape in the transverse direction of a strip by shifting the work rolls of 6-stages rolling mills consisting of work rolls, backup rolls and intermediate rolls to each other in their axial center direction and applying a bending effect upon the intermediate rolls without shifting said rolls in their axial center direction, CONSTITUTION:The upper, lower work rolls 2, 3 of 6-stages rolling mills are held shifted beforehand in their axial center directions in opposite directions in conformity with the width of a material 1 to be rolled and in such a state, the rolls are supported freely rotatably by journal boxes 8 and are rotated by means of driving devices 14, 15 via spindles 12, 13 and joints 11. Upper, lower intermediate rolls 4, 5 are applied with bending by bending devices 17 without shifting the rolls in their axial center direction. Thus the work rolls are shifted to each other in their axial center direction, the material to be rolled is rolled by the end parts of both rolls and bending is applied upon the intermediate rolls, whereby the material is rolled to a plate having a good shape in its transverse direction.

Description

【発明の詳細な説明】 幅方向の形状が良くなるようにした圧延轡に関するもの
である。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rolling rug that has a good shape in the width direction.

2本の作業ロールと、2本の中間ロールと、圧延力を支
持する2本の控ロールとを有する6段圧延機においては
、中間ロールを軸線方向に移動し作業ロールにベンディ
ングを加えるようにしたものがある。この種の6段圧延
機においては、作業ロールが極端に小径となり、ロール
長さと直径との比が5〜7程度の値になると、作業ロー
ルペンディングではロールクラウンが異常な形状になっ
て、俗に言うなべ床形クラウンとなり、よい形状の板に
圧延できない。そのため、圧延性能上、小径の作業ロー
ルを使うことに効果のある圧延機では、小径の作業ロー
ルを板幅に合せてその軸方向に移動させ、中間口−ルを
その軸方向に移動しないよう固定させて該中間ロールに
ベンディングを加えることができるとすれば、よい形状
の板に圧延することができると考えられる。というのは
控ロールは太すぎてベンディングを加えるには不都合、
作業ロールは細すぎるため放物線の曲りが得られない。
In a 6-high rolling mill that has two work rolls, two intermediate rolls, and two backing rolls that support rolling force, the intermediate roll is moved in the axial direction to apply bending to the work roll. There is something I did. In this type of 6-high rolling mill, when the work roll becomes extremely small in diameter and the ratio of roll length to diameter reaches a value of about 5 to 7, the roll crown becomes abnormally shaped during work roll pending, which is common. This results in a pot-shaped crown and cannot be rolled into a well-shaped plate. Therefore, in rolling mills that are effective in using small-diameter work rolls in terms of rolling performance, the small-diameter work rolls are moved in the axial direction to match the strip width, and the intermediate mill roll is prevented from moving in the axial direction. If it is possible to fix the intermediate roll and apply bending to the intermediate roll, it is thought that it is possible to roll a plate with a good shape. This is because the backup roll is too thick and inconvenient to add bending.
The work roll is too thin to obtain a parabolic bend.

これに比べ胴長/胴径比が3〜35くらいの中間ロール
をおいて、中間ロールにペンティングを加えることによ
って良好な曲げ形状が考えられる。
In contrast, a good bending shape can be achieved by providing an intermediate roll with a trunk length/body diameter ratio of about 3 to 35 and adding penting to the intermediate roll.

本発明は、この点に着目し、6段圧延機において良形状
を容易に得ることができる圧延機を提供しようとするも
のでゝ、上下の作業ロールと上下の控ロールとの間に中
間ロールを配した6段圧延機において、上記各作業ロー
ルを、その軸心方向に互に反対方向ヘシフトさせて各々
駆動装置に連結し、且つ上記上下の中間ロールをその軸
心方向へはシフトさせないで支持させると共に中間ロー
ルにベンディング作用を与えるベンディング装置を装備
せしめたことを特徴とするものである、 以下、本発明の実施例を図面を参照して説明する。
The present invention focuses on this point and aims to provide a rolling mill that can easily obtain a good shape in a six-high rolling mill. In a six-high rolling mill equipped with Hereinafter, embodiments of the present invention will be described with reference to the drawings, which are characterized in that they are equipped with a bending device that supports the intermediate roll and also applies a bending action to the intermediate roll.

6段圧延機において、上下の作業ロール(2+ (31
を、被圧延材(1)の板幅に合せて予めその軸心方向へ
逆方向にシフトさせた状態で軸箱(8)にて回転自在に
支持させると共に、両作業ロール(2)(31の軸(9
)(+01の各一端を、軸心方向へは自由に移動できる
が円周方向へは一体的に係合するよう−にした伸縮継手
Ql)を有するスピンドルQ3 (13)に連結し、各
々別個の駆動装置Q41(151により回転させられる
スピンドル020□□□を経て上下作業ロール(2) 
(31に回転動力が伝えられるようにし、且つ両作業ロ
ール(2) (31が各々伸縮継手0υの部分で軸心方
向へ移動できるようにする。
In a 6-high rolling mill, the upper and lower work rolls (2+ (31
is rotatably supported by the axle box (8) in a state in which it has been shifted in the opposite direction to the axial center direction in advance according to the plate width of the material to be rolled (1), and both work rolls (2) (31 axis (9
) (one end of each +01 is connected to a spindle Q3 (13) having an expansion joint Ql that can move freely in the axial direction but integrally engages in the circumferential direction, and each The upper and lower work rolls (2) are rotated by the spindle 020□□□ rotated by the drive device Q41 (151).
Rotational power is transmitted to (31), and both work rolls (2) (31 are made to be able to move in the axial direction at the expansion joint 0υ).

上記上作業ロール(2)と上控ロール(6)との間に配
しである上部中間ロール(4)と、下作業ロール(3)
と下控ロール(7)との間に配しである下部中間ロール
(5)は、それぞれその軸心方向にはシフトさせないで
、各中間ロール(4H51の両軸端の軸箱とハウジング
06)との間に配設したロールベンティング装置(17
)により中間ロール(41(5)にロールベンディング
が加えられるようにし、又、上下の控ロール(6)(力
は支持部Hで圧延力を支持している。
An upper intermediate roll (4) and a lower work roll (3) arranged between the upper work roll (2) and the upper backing roll (6).
The lower intermediate roll (5), which is arranged between the upper and lower backing rolls (7), is not shifted in the axial direction of each intermediate roll (axle box and housing 06 at both shaft ends of 4H51). Roll venting device (17
) to apply roll bending to the intermediate roll (41(5)), and the upper and lower backing rolls (6) (the force is supported by the support portion H).

被圧延材(1)の圧延に際しては、上下の作業ロール(
2)と(3)を互に反対方向にシフトさせた状態にし、
上作業ロール(2)の一端は被圧延材(1)の幅方向の
一方の端に合わせ、又下作業ロール(3)の−WH補圧
延材(1)の幅方向の他方の端に合わして図示の如きシ
フト状態にして圧延を行う。図示の如く上作業ロール(
2)の右端が被圧延材(1)の右端に一致し、下作業ロ
ール(3)の左端が被圧延材+1)の左端に一致した状
態では、被圧延材(1)は作業ロール(2)(3)の互
に反対方向の端の部分で圧延され、更に中間ロール(4
) (5)にロールベンディング装置(17)にてロー
ルベンディングが加えられることにより、被圧延材(1
)は均一に圧延され、且つ形状のよい板に圧延される。
When rolling the material to be rolled (1), upper and lower work rolls (
2) and (3) are shifted in opposite directions,
One end of the upper work roll (2) is aligned with one end of the material to be rolled (1) in the width direction, and also with the other end of the -WH auxiliary rolled material (1) of the lower work roll (3) in the width direction. Rolling is performed in the shifted state as shown in the figure. As shown, the upper work roll (
When the right end of the lower work roll (2) matches the right end of the work roll (1) and the left end of the lower work roll (3) matches the left end of the work roll +1), the work roll (1) ) and (3), and further rolled by intermediate rolls (4).
) By adding roll bending to (5) in the roll bending device (17), the rolled material (1
) is rolled uniformly and into a well-shaped plate.

又、上記の圧延中、本発明では、作業ロールf21 (
3)が互に反対方向にシフトしていることから、被圧延
材(1)の幅方向外方で作業ロール(21(3)同志が
接触するというような問題を避けることができる。又、
作業ロール(21(3)には、ロールベンディングを加
えないため、中心に対して不平衡臼りを生じさせること
もない。
Further, during the above rolling, in the present invention, the work roll f21 (
3) are shifted in opposite directions, it is possible to avoid problems such as the work rolls (21 (3) coming into contact with each other at the outside in the width direction of the material to be rolled (1).
Since no roll bending is applied to the work roll (21(3)), unbalanced milling with respect to the center will not occur.

以上本発明の一実施例を説明したが、たとえば、図示の
如で上下の作業ロール(2) (3)の各両軸端に゛軸
箱a1を新たに設けて、該軸箱員とハウジングC161
との間にロールベンディング装置■を設けることができ
る。
Although one embodiment of the present invention has been described above, for example, as shown in the figure, an axle box a1 is newly provided at each of both shaft ends of the upper and lower work rolls (2) and (3), and the axle box member and the housing are C161
A roll bending device (2) can be provided between the two.

このようにロールベンディング装置(イ)を設けて作業
ロール(21(3)にロールベンディングが与えられる
ようにしておけば、若しアンバランスな形状の板が圧延
された場合に対応させることができる。
By providing the roll bending device (a) in this way so that roll bending can be applied to the work roll (21 (3)), it is possible to cope with the case where a plate with an unbalanced shape is rolled. .

又、上下の作業ロール(2)(3)に回転動力を与える
各駆動装置(141Q51の回転速度が可変になるよう
にすれば、異周速圧延も実施することができる。
Further, if the rotational speed of each drive device (141Q51) that provides rotational power to the upper and lower work rolls (2) and (3) is made variable, rolling at different circumferential speeds can also be performed.

このときも作業ロール(2) (3)がシフトしている
ので、被圧延材+11の幅方向の外方でロール(2i 
(31同志が擦れ合うこともない。
At this time, the work rolls (2) and (3) are also shifted, so the roll (2i
(The 31st comrades will not rub against each other.

尚、控ロール(6)(力にベンディングを加えることも
可能であるが、中間ロール(4) (5)の曲げカーブ
に沿う放物形状となるようにロール径を決めて組み込む
方がよい。又、中間ロール(4) (51のベンディン
グ装置(t7)は、中間ロール(4) (5)の軸箱と
ハウジングα0との間に配設した場合を示したが、これ
に限られるものではない。
Incidentally, it is possible to add bending to the backing roll (6) (force), but it is better to determine the roll diameter and incorporate it so that it has a parabolic shape that follows the bending curve of the intermediate rolls (4) and (5). Furthermore, although the bending device (t7) of the intermediate roll (4) (51) is shown as being disposed between the axle box of the intermediate roll (4) (5) and the housing α0, the bending device (t7) is not limited to this. do not have.

以上述べた如く、本発明の圧延機によれば、作業ロール
を軸心方向に互に反対方向にシフトさせて両ロールの端
の部分で圧延させると共に中間ロールにロールベンディ
ングを加えるようにしているので、板の幅方向の形状の
よい板に圧延することができ、又中間ロールにベンディ
ングを加えて作業ロールにはベンディングを加えないこ
とから、作業ロールには不平前曲りを生じさせることも
ない、等の優れた効果を奏し得る。
As described above, according to the rolling mill of the present invention, the work rolls are shifted in opposite directions in the axial direction to perform rolling at the end portions of both rolls, and roll bending is applied to the intermediate roll. Therefore, the sheet can be rolled into a sheet with a good shape in the width direction, and since bending is applied to the intermediate roll and no bending is applied to the work roll, the work roll does not cause uneven front bending. , and other excellent effects can be achieved.

【図面の簡単な説明】[Brief explanation of the drawing]

図は本発明の圧延機の実施例を示す正面図である。 (11・・・被圧延材、(2)・・・上作業ロール、(
3)・・・下作業ロール、(4)・・・上中間−ロール
、(5)・・・下中間ロール、0υ・・・伸縮継手、0
409・・・駆動装置、ae・・・ハウジング、αη・
・・ロールベンディング装置、((イ)・・・ロールベ
ンディング装置。
The figure is a front view showing an embodiment of the rolling mill of the present invention. (11... material to be rolled, (2)... upper work roll, (
3)...Lower work roll, (4)...Upper intermediate roll, (5)...Lower intermediate roll, 0υ...Expansion joint, 0
409... Drive device, ae... Housing, αη・
...Roll bending device, ((a)...Roll bending device.

Claims (1)

【特許請求の範囲】[Claims] 1)上下の作業ロールと上下の控ロールとの間に中間ロ
ールを配した6段圧延機において、上記各作業ロールを
、その軸心方向に互に反対方向ヘシフトさせて各々駆動
装置に連結し、且つ上記上下の中間ロールをその軸心方
向へはシフトさせないで支持させると共に中間ロールに
ベンディング作用を与えるベンディング装置を装備せし
めたことを特徴とする圧延機。
1) In a six-high rolling mill in which intermediate rolls are arranged between upper and lower work rolls and upper and lower backing rolls, each of the work rolls is shifted in opposite directions in the axial direction and connected to a drive device. A rolling mill, characterized in that it is equipped with a bending device that supports the upper and lower intermediate rolls without shifting them in the axial direction thereof and that applies a bending action to the intermediate rolls.
JP19310781A 1981-12-01 1981-12-01 Rolling mill Granted JPS5893504A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19310781A JPS5893504A (en) 1981-12-01 1981-12-01 Rolling mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19310781A JPS5893504A (en) 1981-12-01 1981-12-01 Rolling mill

Publications (2)

Publication Number Publication Date
JPS5893504A true JPS5893504A (en) 1983-06-03
JPH0112564B2 JPH0112564B2 (en) 1989-03-01

Family

ID=16302353

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19310781A Granted JPS5893504A (en) 1981-12-01 1981-12-01 Rolling mill

Country Status (1)

Country Link
JP (1) JPS5893504A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10208389B4 (en) * 2001-07-11 2004-11-04 Hitachi, Ltd. Roll stand, rolling mill and rolling process

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS517635A (en) * 1974-07-11 1976-01-22 Kayaba Industry Co Ltd EKIATSUSHI KIDORYOKUKAJITORISOCHINIOKERU EKIATSUHANRYOKUSOCHI

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS517635A (en) * 1974-07-11 1976-01-22 Kayaba Industry Co Ltd EKIATSUSHI KIDORYOKUKAJITORISOCHINIOKERU EKIATSUHANRYOKUSOCHI

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10208389B4 (en) * 2001-07-11 2004-11-04 Hitachi, Ltd. Roll stand, rolling mill and rolling process

Also Published As

Publication number Publication date
JPH0112564B2 (en) 1989-03-01

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