JPH0542305A - Method and device for setting rolling reduction of vertical rolling mill - Google Patents
Method and device for setting rolling reduction of vertical rolling millInfo
- Publication number
- JPH0542305A JPH0542305A JP3204353A JP20435391A JPH0542305A JP H0542305 A JPH0542305 A JP H0542305A JP 3204353 A JP3204353 A JP 3204353A JP 20435391 A JP20435391 A JP 20435391A JP H0542305 A JPH0542305 A JP H0542305A
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- Prior art keywords
- hydraulic cylinder
- hydraulic
- reduction
- screw
- electric
- 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.)
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Links
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- Control Of Metal Rolling (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、竪型圧延機の圧下量設
定方法及び装置であって、特に、圧延後の板を先端から
後端まで板幅偏差の少ない矩形に近づけ、クロップロ
ス、トリムロスを少なくし歩留り向上を目的として、先
端後端が幅広でその間が中くぼみで幅狭の形状の圧延材
を成形するための、油圧式竪型圧延機の圧下量設定方法
及び装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for setting a reduction amount of a vertical rolling mill, and particularly, a rolled plate is made to have a rectangular shape with a small plate width deviation from the leading end to the trailing end, and crop loss, The present invention relates to a rolling amount setting method and apparatus for a hydraulic vertical rolling mill for forming a rolled material having a wide front end and a rear end and a narrow hollow between the ends for the purpose of reducing trim loss and improving yield.
【０００２】[0002]
【従来技術】従来、特公昭５７−４８２８６号公報には
圧延後の板を先端から後端まで板幅偏差の少ない矩形に
近づけ、クロップロス、トリムロスを少なくし歩留り向
上を目的として、先端後端が幅広でその間が中くぼみで
幅狭の形状の鋼片を成形するための熱間圧延方法が開示
されている。2. Description of the Related Art Conventionally, Japanese Patent Publication No. 57-48286 discloses that a rolled plate is made to have a rectangular shape with a small plate width deviation from the front end to the rear end to reduce crop loss and trim loss and to improve yield. It discloses a hot rolling method for forming a steel slab having a wide width and a hollow in between and a narrow shape.
【０００３】そして、特公昭５５−３５２０１号公報に
は、油圧式バ−チカル圧延装置が開示されている。この
油圧式バ−チカル圧延装置は、１対のバ−チカルロ−ル
を圧延材の進行方向の対して開閉可能にハウジングに支
承せしめると共に、該ハウジングにサポ−ト用フランジ
をスライド可能に支承せしめ、該サポ−ト用フランジを
介し、油圧シリンダ及びこの油圧シリンダ内を摺動する
油圧ピストンを夫々スライド可能にハウジングに支承せ
しめ、油圧シリンダ及び油圧ピストンによりバ−チカル
ロ−ルの位置決めをすることを特徴とするもので、バ−
チカルロ−ル位置決め方法として、油圧サ−ボによる追
値位置制御を用いていた。In Japanese Patent Publication No. 55-35201, a hydraulic vertical rolling device is disclosed. In this hydraulic vertical rolling apparatus, a pair of vertical rolls are supported on a housing so as to be openable and closable with respect to the traveling direction of the rolled material, and a support flange is slidably supported on the housing. The hydraulic cylinder and the hydraulic piston that slides in the hydraulic cylinder are slidably supported by the housing through the support flange, and the vertical roll is positioned by the hydraulic cylinder and the hydraulic piston. It is a feature,
As a chicar roll positioning method, additional value position control by a hydraulic servo was used.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、従来の
方法及び装置では、油圧サ−ボによる追値位置制御を実
現するため、下記機構及び機能が要求されていた。 (1) シリンダ位置を検出する為に、専用のシリンダ位置
検出センサ−を設置する必要があった。 (2) 位置検出センサ−からの信号を受取り、サ−ボバル
ブを制御し位置をコントロ−ルするための制御装置が必
要であった。 (3) サ−ボバルブを用いるため、油圧作動油の清浄度が
要求された。この作動油の清浄度を保つためには油圧装
置にクリ−ニング装置の設置、油圧配管の特殊施工、配
管材質のＳＵＳ化等が必要であった。また、定期的に作
動油の点検並びに交換をする必要があった。そして、こ
の作動油の清浄度が確保できない場合は、サ−ボバルブ
の作動不良などによる圧延ライン停止等のトラブルが発
生していた。 (4) 上記(1),(2)および(3)項により位置制御機構が非常
に高価なものとなり、更に(1),(3)項により、メインテ
ナンス性が悪かった。 本発明は、圧延材を竪型圧延機で、先端後端が幅広でそ
の間が中くぼみで幅狭の形状に成形する圧延の、低コス
ト化、メインテナンス性向上を目的とする。However, in the conventional method and apparatus, the following mechanism and function are required to realize the additional value position control by the hydraulic servo. (1) It was necessary to install a dedicated cylinder position detection sensor to detect the cylinder position. (2) A control device for receiving a signal from the position detection sensor and controlling the servo valve to control the position was required. (3) Since a servo valve is used, cleanliness of hydraulic fluid is required. In order to maintain the cleanliness of this hydraulic oil, it was necessary to install a cleaning device in the hydraulic system, specially install the hydraulic pipe, and make the pipe material SUS. In addition, it was necessary to regularly check and replace the hydraulic oil. If the cleanliness of the hydraulic oil cannot be ensured, troubles such as a rolling line stop due to a malfunction of the servo valve have occurred. (4) The position control mechanism is very expensive due to the above items (1), (2) and (3), and the maintainability is poor due to the items (1) and (3). An object of the present invention is to reduce the cost and improve the maintainability of rolling in which a rolled material is formed in a vertical rolling mill into a shape in which the front end and the rear end are wide and the space between them is a hollow, and the width is narrow.
【０００５】[0005]
【課題を解決するための手段】(1) 本発明は、先端後端
が幅広でその間が中くぼみで幅狭の形状の圧延材を竪型
圧延機で成形する際に、ロ−ルチョックに設けた一定ス
トロ−クを有する油圧シリンダと、その油圧シリンダの
ピストンを移動する電動圧下スクリュ−からなるバ−チ
カルロ−ルの圧下装置を使用し、鋼片の先端からある一
定の位置でバ−チカルロ−ルの回転を停止し、電動圧下
スクリュ−にて移動しながら油圧シリンダ内の作動油を
排出し、電動圧下スクリュ−の圧下量設定を行い、その
後、油圧シリンダに圧油を入れて、油圧シリンダをスト
ロ−クエンドまで移動し、圧延材の中くぼみまで幅狭の
部分の圧下量設定をすることを特徴とする。[Means for Solving the Problems] (1) The present invention is provided on a roll chock when a rolled material having a wide front end and a rear end and a hollow in between is formed by a vertical rolling mill. Using a vertical roll reduction device consisting of a hydraulic cylinder having a constant stroke and an electric reduction screw that moves the piston of the hydraulic cylinder, the vertical roll is placed at a certain position from the tip of the steel slab. -The rotation of the electric screw is stopped, the hydraulic oil in the hydraulic cylinder is discharged while moving with the electric pressure screw, the amount of reduction of the electric pressure screw is set, and then the hydraulic oil is put into the hydraulic cylinder to set the hydraulic pressure. It is characterized in that the cylinder is moved to the stroke end and the amount of reduction of the narrow portion is set to the hollow of the rolled material.
【０００６】(2) 本発明の竪型圧延機の圧下量設定装置
は、ロ−ルチョックに設けた一定ストロ−クを有する油
圧シリンダと、その油圧シリンダのピストンを移動する
電動圧下スクリュ−と、油圧シリンダの油圧回路内に電
動圧下スクリュ−で圧下量設定を行う時に油圧シリンダ
内の作動油を排出可能な油圧切替弁を設けたことを特徴
とする。(2) A reduction amount setting device for a vertical rolling mill according to the present invention comprises a hydraulic cylinder having a constant stroke provided on a roll chock, an electric reduction screw for moving a piston of the hydraulic cylinder, A hydraulic switching valve is provided in the hydraulic circuit of the hydraulic cylinder, which is capable of discharging the hydraulic oil in the hydraulic cylinder when the amount of reduction is set by the electric screw.
【０００７】[0007]
【作用】上記手段により、一定ストロ−クの油圧シリン
ダと電動圧下スクリュ−の２段階で、圧延材の中くぼみ
で幅狭の部分をシンプルな機構と制御で精度良く圧延す
ることができる。これは、電動圧下スクリュ−で圧下量
設定を行う時には、油圧シリンダ内の作動油を排出しな
がら行うので、電動圧下スクリュ−を駆動する駆動力は
僅少ですみ、油圧シリンダで高負荷の圧下を行うことが
できる。このため、電動圧下スクリュ−の駆動装置は小
容量で、かつ、コンパクトになる。そして、油圧シリン
ダを一定ストロ−クとして、そのストロ−ク精度を厳密
に確保しているので、電動圧下スクリュ−と油圧シリン
ダのストロ−クの和が鋼片の幅圧下量となり、そのスト
ロ−クの和の精度は非常に良く、精度良い圧下量設定が
可能となった。これにより、従来の油圧サ−ボによる追
値位置制御を不要とし、上記課題に示す高コスト、メイ
ンテナンス性不良という従来の問題を解決した。With the above-described means, it is possible to accurately roll the narrow portion of the rolled material in the hollow of the rolled material with a simple mechanism and control in two steps of the constant stroke hydraulic cylinder and the electric rolling screw. This is done while discharging the hydraulic oil in the hydraulic cylinder when setting the amount of reduction with the electric reduction screw, so the driving force to drive the electric reduction screw is very small, and the hydraulic cylinder can reduce the high load. It can be carried out. Therefore, the drive device of the electric screw-down screw has a small capacity and becomes compact. Since the stroke of the hydraulic cylinder is kept constant and the stroke accuracy is strictly ensured, the sum of the strokes of the electric screw-down screw and the hydraulic cylinder becomes the width reduction amount of the billet, and the stroke is reduced. The accuracy of the sum of the strokes is very good, and it is possible to set the reduction amount with high accuracy. This eliminates the need for additional value position control by a conventional hydraulic servo, and solves the conventional problems of high cost and poor maintainability described above.
【０００８】[0008]
【実施例】以下本発明の実施例を図面に基づいて説明す
る。まず、図２に本発明を実施する１つの竪型圧延機の
構造の概要を示す。図２において、１はロ−ルチョッ
ク、２はロ−ル、３は電動圧下スクリュ−、４は油圧シ
リンダのピストン、５は油圧シリンダ、１６は圧延材、
１１は電動圧下スクリュ−を駆動するウォ−ムホイ−
ル、１２はそのウォ−ムホイ−ルを駆動するための駆動
減速機、１３はバランスシリンダ、１４はロ−ルを回転
駆動するための駆動軸、１５は圧延機ハウジング、であ
る。油圧シリンダ５には、油圧配管１０，流量調整弁
８，油圧切替弁９を含む油圧回路が設けられている。油
圧切替弁９は４ポ−ト３位置切替弁であり、油圧シリン
ダ側のポ−トを１つ盲プラグでふさいだものである。そ
して、ピストン４の電動圧下スクリュ−側にはエア−ブ
リ−ザ７が設けられ、ピストンが移動する時にエア−が
出入りできるようにし、かつ、外気の塵埃を油圧シリン
ダ内に入らぬようにしている。Embodiments of the present invention will be described below with reference to the drawings. First, FIG. 2 shows an outline of the structure of one vertical rolling mill for carrying out the present invention. In FIG. 2, 1 is a roll chock, 2 is a roll, 3 is an electric reduction screw, 4 is a piston of a hydraulic cylinder, 5 is a hydraulic cylinder, 16 is a rolled material,
Reference numeral 11 is a worm wheel that drives an electric screw-down screw.
Reference numeral 12 is a drive reducer for driving the worm wheel, 13 is a balance cylinder, 14 is a drive shaft for rotationally driving the roll, and 15 is a rolling mill housing. The hydraulic cylinder 5 is provided with a hydraulic circuit including a hydraulic pipe 10, a flow rate adjusting valve 8, and a hydraulic pressure switching valve 9. The hydraulic switching valve 9 is a 4-port 3-position switching valve, and one port on the hydraulic cylinder side is covered with a blind plug. An air breather 7 is provided on the side of the piston 4 on the electric screw-down side so that the air can move in and out when the piston moves, and the dust of the outside air cannot enter the hydraulic cylinder. There is.
【０００９】次に、圧下量の設定手順を、図２を参照し
て以下説明する。圧延材１６をロ−ル２で圧下する場
合、ロ−ル２を保持したロ−ルチョック１を、閉じる方
向に駆動する。その際、先ず、油圧切替弁９を図２のポ
ジション、即ち油圧シリンダ５のピストン４の左側の部
屋の作動油がタンク（Ｔポ−ト）へ排油できる位置に切
替える。その後、電動圧下スクリュ−３をロ−ル２が閉
じる方向へ駆動し、圧下量を設定する。この際、電動圧
下スクリュ−にかかる負荷は排油する油圧シリンダ５の
排圧と、ロ−ルチョック１の摺動抵抗と、バランスシリ
ンダ１３のバランス力等の軽い負荷であり、小容量のモ
−タで駆動することができる。図２の油圧シリンダ５の
ピストン４の位置は、この移動が完了した状態の位置で
ある。この移動が完了した後、油圧切替弁９を左のポジ
ション、即ち、圧油が油圧シリンダ５に入る位置（Ｐポ
−トに接続する位置）に切替える。すると油圧シリンダ
５はロ−ルチョック１を押してロ−ル２が圧延材１６を
圧下する。さらに、油圧シリンダ５でロ−ルチョック１
を押し続けてシリンダ５のストロ−クエンドに達した時
点で圧下量設定が完了する。Next, the procedure for setting the reduction amount will be described below with reference to FIG. When rolling material 16 is rolled down, roll chock 1 holding roll 2 is driven in the closing direction. At this time, first, the hydraulic pressure switching valve 9 is switched to the position shown in FIG. 2, that is, to the position where the hydraulic oil in the chamber on the left side of the piston 4 of the hydraulic cylinder 5 can be discharged to the tank (T port). After that, the electric screw-down screw-3 is driven in the direction in which the roll 2 is closed, and the screw-down amount is set. At this time, the load applied to the electric screw-down screw is a light load such as the exhaust pressure of the hydraulic cylinder 5 for draining oil, the sliding resistance of the roll chock 1, the balance force of the balance cylinder 13, and the like, which has a small capacity. It can be driven by a computer. The position of the piston 4 of the hydraulic cylinder 5 in FIG. 2 is the position in the state where this movement is completed. After this movement is completed, the hydraulic pressure switching valve 9 is switched to the left position, that is, the position where the pressure oil enters the hydraulic cylinder 5 (the position where it is connected to the P port). Then, the hydraulic cylinder 5 pushes the roll chock 1 and the roll 2 rolls down the rolled material 16. Further, the hydraulic cylinder 5 is used to roll the chock 1
When the stroke end of the cylinder 5 is reached by continuing to press, the reduction amount setting is completed.
【００１０】このように、圧延材１６を高圧下する場合
は、油圧シリンダ５で行う。以上説明したように、本発
明の圧下量設定では、電動圧下スクリュ−３のストロ−
クと、一定ストロ−クに設定された油圧シリンダ５のス
トロ−クによりロ−ル開度を設定する。As described above, when the rolled material 16 is subjected to high pressure, the hydraulic cylinder 5 is used. As described above, in the reduction amount setting of the present invention, the stroke of the electric reduction screw-3 is set.
And the stroke of the hydraulic cylinder 5 set to a constant stroke, the roll opening is set.
【００１１】次に、図１に示すような、先端後端が幅広
でその間が中くぼみで幅狭の形状の圧延材を圧延する場
合の、概略圧延パタ−ンを、図２（正面図）に示す圧延
機の平面図に相当する、図３，図４および図５に基づき
説明する。なお、油圧切替弁９及び流量調整弁８は両油
圧シリンダ５に設けているが、図３，図４および図５で
は、一方の図示を省略している。FIG. 2 (front view) is a schematic rolling pattern for rolling a rolled material having a wide front end and a rear end and a narrow hollow between them as shown in FIG. The description will be given with reference to FIGS. 3, 4 and 5, which corresponds to the plan view of the rolling mill shown in FIG. The hydraulic pressure switching valve 9 and the flow rate adjusting valve 8 are provided on both hydraulic cylinders 5, but one of them is omitted in FIGS. 3, 4, and 5.
【００１２】図３に示すパタ−ンＮｏ．１の状態は、圧
延材１６がラインセンタ−（横一点鎖線）に対し偏芯し
ている状態を示す。パタ−ンＮｏ．２で斜行防止を目的
とし、サイドガイド１７にて圧延材１６の中心をライン
センタ−に合わせる。パタ−ンＮｏ．３で、電動圧下ス
クリュ−３を移動し、油圧シリンダ５内に油圧を立て、
先端部の圧延材幅Ａ寸法に合わせた圧下量設定を行い、
その状態にセットしてあるロ−ル間に圧延材１６を挿入
し、圧延材１６の先端部を幅寸法Ａに圧延する。パタ−
ンＮｏ．４で、ある先端長さを幅Ａに圧延した後、ロ−
ル回転をストップさせる。パタ−ンＮｏ．５で、油圧切
替弁９を切替え、シリンダ５内油圧圧力を抜く。図４の
パタ−ンＮｏ．６で、電動圧下スクリュ−３を作動さ
せ、電動圧下スクリュ−３のみの圧下量設定を行う。こ
の時、油圧シリンダ５内の作動油は電動圧下スクリュ−
３の移動に伴ないタンクへ排出される。パタ−ンＮｏ．
７で、油圧切替弁９を切替え、再び油圧を立てる。ロ−
ル２は圧延材１６を押し、圧延材１６の幅をＢ寸法に圧
下量設定を行う。そして、両ロ−ル２の移動速度調整
は、流量調整弁８で行う。パタ−ンＮｏ．８で、圧延材
中央部をＢ寸法に圧延する。パタ−ンＮｏ．９で、ある
後端長さを残した状態で、ロ−ル回転をストップさせ
る。パタ−ンＮｏ．１０で、油圧切替弁９を切替え、油
圧シリンダ５内油圧圧力を抜く。The pattern No. 1 shown in FIG. The state 1 indicates that the rolled material 16 is eccentric with respect to the line center (horizontal dashed line). Pattern No. The center of the rolled material 16 is aligned with the line center by the side guide 17 for the purpose of preventing skewing in 2. Pattern No. At 3, the electric screw-down screw -3 is moved to raise the hydraulic pressure in the hydraulic cylinder 5,
Set the amount of reduction according to the width A dimension of the rolled material at the tip,
The rolled material 16 is inserted between the rolls set in that state, and the tip of the rolled material 16 is rolled to the width A. Pattern
No. In step 4, after rolling a certain tip length to width A,
Stop rotation. Pattern No. At 5, the hydraulic switching valve 9 is switched to release the hydraulic pressure in the cylinder 5. The pattern No. of FIG. At 6, the electric screw-down screw-3 is operated, and the screw-down amount of only the electric screw-down screw-3 is set. At this time, the hydraulic oil in the hydraulic cylinder 5 is the electric screw-down screw.
Along with the movement of 3, it is discharged to the tank. Pattern No.
At 7, the hydraulic pressure switching valve 9 is switched and the hydraulic pressure is raised again. Low
The roll 2 pushes the rolled material 16 and sets the width of the rolled material 16 to the dimension B to set the reduction amount. Then, the movement speed of both rolls 2 is adjusted by the flow rate adjusting valve 8. Pattern No. At 8, the central portion of the rolled material is rolled to B dimension. Pattern No. At 9, the roll rotation is stopped while leaving a certain rear end length. Pattern No. At 10, the hydraulic switching valve 9 is switched to release the hydraulic pressure in the hydraulic cylinder 5.
【００１３】図５に示すパタ−ンＮｏ．１１で、電動圧
下スクリュ−３を作動させ幅を広げる方向に、電動圧下
スクリュ−３のみの圧下量設定を行う。パタ−ンＮｏ．
１２で、油圧切替弁９を切替え、油圧シリンダ５の油圧
圧力を立て、圧延材１６の幅がＡ寸法になるように油圧
シリンダ５をストロ−クエンドまで拡張する。パタ−ン
Ｎｏ．１３で、ロ−ル２を回転させ、圧延材１６の後端
部幅をＡ寸法で圧延する。パタ−ンＮｏ．１４は、圧延
材１６がロ−ル２を抜けた状態を示す。以上の結果、圧
延材１６は図１に示す形状となっている。The pattern No. 1 shown in FIG. At 11, the amount of reduction of only the electric reduction screw-3 is set in the direction in which the electric reduction screw-3 is operated to widen the width. Pattern No.
At 12, the hydraulic switching valve 9 is switched to raise the hydraulic pressure of the hydraulic cylinder 5, and the hydraulic cylinder 5 is expanded to the stroke end so that the width of the rolled material 16 becomes the dimension A. Pattern No. At 13, the roll 2 is rotated, and the width of the rear end portion of the rolled material 16 is rolled to A dimension. Pattern No. 14 shows a state in which the rolled material 16 has passed through the roll 2. As a result, the rolled material 16 has the shape shown in FIG.
【００１４】[0014]
【発明の効果】本発明は、下記の顕著な効果を奏する。 (1) 一定ストロ−クのプランジャ−式油圧シリンダ(5)
と電動圧下スクリュ−(3)の２段階で圧延材(16)に、中
くぼみで幅狭の部分を、シンプルな機構と制御で精度良
く圧延形成することができる。 (2) 電動圧下スクリュ−(3)の駆動装置は小容量で、か
つ、コンパクトになる。The present invention has the following remarkable effects. (1) Plunger type hydraulic cylinder with constant stroke (5)
With the electric reduction screw (3) and two stages, the rolled material (16) can be accurately formed by rolling with a simple mechanism and control to form a narrow recessed portion. (2) The drive device for the electric screw-down screw (3) has a small capacity and becomes compact.
【００１５】(3) 油圧シリンダ(5)を一定ストロ−クと
して、そのストロ−ク精度を厳密に確保しているので、
精度良い圧下量設定が可能となった。 (4) 従来の油圧サ−ボによる追値位置制御は不要とな
り、高コスト、メインテナンス性不良という従来の問題
が解消した。(3) Since the hydraulic cylinder (5) is a constant stroke and the stroke accuracy is strictly secured,
It has become possible to set the amount of reduction with high accuracy. (4) The additional value position control by the conventional hydraulic servo becomes unnecessary, and the conventional problems of high cost and poor maintenance are solved.
【図１】 本発明で圧延する圧延材の形状を示す平面図
である。FIG. 1 is a plan view showing a shape of a rolled material to be rolled according to the present invention.
【図２】 本発明装置の一実施例である竪型圧延機の主
要部を示す正面図である。FIG. 2 is a front view showing a main part of a vertical rolling mill which is an embodiment of the device of the present invention.
【図３】 図２に示す竪型圧延機の概略平面図である。FIG. 3 is a schematic plan view of the vertical rolling mill shown in FIG.
【図４】 図２に示す竪型圧延機の概略平面図である。FIG. 4 is a schematic plan view of the vertical rolling mill shown in FIG.
【図５】 図２に示す竪型圧延機の概略平面図である。FIG. 5 is a schematic plan view of the vertical rolling mill shown in FIG.
【符号の説明】 １：ロ−ルチョック ２：バ−チカル
ロ−ル ３：電動圧下スクリュ− ４：油圧シリン
ダピストン ５：油圧シリンダ ７：エア−ブリ
−ザ ８：流量調整弁 ９：油圧切替弁 １０：油圧配管 １１：ウォ−ム
ホイ−ル １２：電動圧下スクリュ−駆動用減速機 １３：バランスシリンダ １４：ロ−ル回
転用駆動軸 １５：圧延機ハウジング １６：圧延材 １７：サイドガイド[Explanation of reference symbols] 1: Roll chock 2: Vertical roll 3: Electric pressure reduction screw 4: Hydraulic cylinder piston 5: Hydraulic cylinder 7: Air breather 8: Flow rate adjusting valve 9: Hydraulic switching valve 10 : Hydraulic piping 11: Worm wheel 12: Electric reduction screw drive speed reducer 13: Balance cylinder 14: Roll rotation drive shaft 15: Rolling mill housing 16: Rolling material 17: Side guide
Claims (2)
の形状に圧延材を竪型圧延機で成形する際に、ロ−ルチ
ョックに設けた一定ストロ−クを有する油圧シリンダ
と、その油圧シリンダのピストンを移動する電動圧下ス
クリュ−からなるバ−チカルロ−ルの圧下装置を使用
し、鋼片の先端からある一定の位置でバ−チカルロ−ル
の回転を停止し、電動圧下スクリュ−にて移動しながら
油圧シリンダ内の作動油を排出し、電動圧下スクリュ−
の圧下量設定を行い、その後、油圧シリンダ内に圧油を
入れて、油圧シリンダをストロ−クエンドまで移動し、
圧延材の中くぼみで幅狭の部分の圧下量設定をすること
を特徴とする竪型圧延機の圧下量設定方法。1. A hydraulic cylinder having a constant stroke provided on a roll chock when a rolled material is formed into a narrow shape with a wide front end and a rear end and a middle recess between them. Using a vertical roll reduction device consisting of an electric reduction screw that moves the piston of the hydraulic cylinder, the rotation of the vertical roll is stopped at a certain position from the tip of the steel piece, and the electric reduction screw is stopped. -The hydraulic oil in the hydraulic cylinder is discharged while moving at-, and the electric screw
After setting the amount of pressure reduction, put pressure oil in the hydraulic cylinder, move the hydraulic cylinder to the stroke end,
A method for setting the amount of reduction in a vertical rolling mill, characterized in that the amount of reduction in the narrow portion of the rolled material is set.
有する油圧シリンダと、その油圧シリンダのピストンを
移動する電動圧下スクリュ−と、油圧シリンダの油圧回
路内に電動圧下スクリュ−で圧下量設定を行う時に油圧
シリンダ内の作動油を排出可能な油圧切替弁を設けたこ
とを特徴とする竪型圧延機の圧下量設定装置。2. A hydraulic cylinder having a constant stroke provided on a roll chock, an electric reduction screw for moving a piston of the hydraulic cylinder, and a reduction amount set by an electric reduction screw in a hydraulic circuit of the hydraulic cylinder. A reduction amount setting device for a vertical rolling mill, which is provided with a hydraulic switching valve capable of discharging hydraulic oil in a hydraulic cylinder when performing a rolling operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3204353A JPH089042B2 (en) | 1991-08-14 | 1991-08-14 | Method and device for setting reduction amount of vertical rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3204353A JPH089042B2 (en) | 1991-08-14 | 1991-08-14 | Method and device for setting reduction amount of vertical rolling mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0542305A true JPH0542305A (en) | 1993-02-23 |
| JPH089042B2 JPH089042B2 (en) | 1996-01-31 |
Family
ID=16489106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3204353A Expired - Fee Related JPH089042B2 (en) | 1991-08-14 | 1991-08-14 | Method and device for setting reduction amount of vertical rolling mill |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH089042B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150231679A1 (en) * | 2012-07-27 | 2015-08-20 | Siemens Aktiengesellschaft | Method for influencing the geometry of a rolled item in a controlled manner |
| CN106391726A (en) * | 2015-07-31 | 2017-02-15 | 宝山钢铁股份有限公司 | Method for adjusting plate cut through hot rolling synchronous side press |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52109467A (en) * | 1976-03-10 | 1977-09-13 | Ishikawajima Harima Heavy Ind | Hydraulic vertical rolling device |
| JPS57171511A (en) * | 1981-04-14 | 1982-10-22 | Ishikawajima Harima Heavy Ind Co Ltd | Vertical type rolling mill |
-
1991
- 1991-08-14 JP JP3204353A patent/JPH089042B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52109467A (en) * | 1976-03-10 | 1977-09-13 | Ishikawajima Harima Heavy Ind | Hydraulic vertical rolling device |
| JPS57171511A (en) * | 1981-04-14 | 1982-10-22 | Ishikawajima Harima Heavy Ind Co Ltd | Vertical type rolling mill |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150231679A1 (en) * | 2012-07-27 | 2015-08-20 | Siemens Aktiengesellschaft | Method for influencing the geometry of a rolled item in a controlled manner |
| US9776229B2 (en) * | 2012-07-27 | 2017-10-03 | Primetals Technologies Germany Gmbh | Method for influencing the geometry of a rolled item in a controlled manner |
| CN106391726A (en) * | 2015-07-31 | 2017-02-15 | 宝山钢铁股份有限公司 | Method for adjusting plate cut through hot rolling synchronous side press |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH089042B2 (en) | 1996-01-31 |
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|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
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