TWI496630B

TWI496630B - Device and method for milling metallic plate

Info

Publication number: TWI496630B
Application number: TW101107452A
Authority: TW
Inventors: Taisuke IWAKI; Yasuhiro Nishiyama; Kunihiko Wakatsuki; Tsuyoshi Higo; Shigeru Ogawa
Original assignee: Nippon Steel & Sumitomo Metal Corp
Priority date: 2011-03-24
Filing date: 2012-03-06
Publication date: 2015-08-21
Also published as: EP2626149A1; KR20130069875A; JP5059250B1; CN103237609A; EP2626149B1; JPWO2012128019A1; KR101392078B1; EP2626149A4; WO2012128019A1; CN103237609B; TW201304886A

Description

金屬板材之軋延機及軋延方法Metal sheet rolling mill and rolling method

發明領域Field of invention

本發明係有關於金屬板材之軋延機及軋延方法。本發明特別是有關於以下軋延機及使用該軋延機之軋延方法，即：適合於厚板軋延機或薄板熱軋軋延之粗軋延機或精軋延機，且可大幅地取得上下作業輥間之最大開度，同時可輕易地賦予強力之輥彎力，其結果，可賦予高響應且強力之板冠高‧形狀控制機能者。The invention relates to a rolling mill for metal sheets and a rolling method. The invention particularly relates to the following rolling mill and a rolling method using the same, that is, a rough rolling mill or a finishing rolling mill suitable for a thick plate rolling mill or a sheet hot rolling rolling, and can be substantially The maximum opening degree between the upper and lower work rolls is obtained, and the strong roll bending force can be easily imparted, and as a result, a high response and a strong crown height and a shape control function can be imparted.

本發明係根據2011年3月24日在日本所申請的特願2011-066153號主張優先權，且在此援用其內容。The present invention claims priority based on Japanese Patent Application No. 2011-066153, filed on Jan.

發明背景Background of the invention

以往，已知的是以下形式之軋延機，即：如第12、13圖所示之軋延機1A、1B，為了取得大的輥開度，補強輥軸承座係抱住作業輥軸承座而保持者。然而，由於在自補強輥軸承座伸長的作業輥軸承座保持用之臂部裝入增彎曲裝置，因此，欲裝入大容量之油壓缸是困難的。Conventionally, there has been known a rolling mill of the following type, that is, the calenders 1A, 1B shown in Figs. 12 and 13, in order to obtain a large roll opening, the reinforcing roll bearing seat is held by the work roll chock And the holder. However, since the arm portion for holding the work roll chock which is elongated from the reinforcing roll chock is incorporated in the buckling device, it is difficult to mount the large-capacity hydraulic cylinder.

舉例言之，專利文獻1所揭示之軋延機形式係四段軋延機，且該軋延機形式係第16圖所示之結構。即，屬於與上補強輥軸承座4-1接連的臂部保持上作業輥軸承座3-1之形式。藉由將作用在上作業輥1-1之上增彎曲裝置6-1、6-2裝入該臂部，而作成可獲得大的輥開度。For example, the rolling mill disclosed in Patent Document 1 is a four-stage rolling mill, and the rolling mill is in the form shown in Fig. 16. That is, the arm portion that is connected to the upper reinforcing roller bearing block 4-1 is held in the form of the upper work roll chock 3-1. By inserting the bending means 6-1, 6-2 acting on the upper work roll 1-1 into the arm portion, a large roll opening degree can be obtained.

然而，於該形式之軋延機中會有以下問題。However, there are the following problems in the calender of this form.

(1)不得不將上增彎曲裝置6-1、6-2裝入抱住上作業輥軸承座3-1的上補強輥軸承座4-1之臂部。故，欲裝入大容量之油壓缸是困難的。(1) The upper bending device 6-1, 6-2 has to be loaded into the arm portion of the upper reinforcing roller bearing block 4-1 that is held by the upper work roll chock 3-1. Therefore, it is difficult to load a large-capacity hydraulic cylinder.

(2)在賦予上作業輥1-1強力之增彎力時，與上補強輥軸承座4-1接連的臂部會承受朝外側放開之方向的力矩。此時，臂部會被外罩窗壓住，並提高產生起因於軋機遲滯之增大的板厚精度惡化之可能性，或是由於軸承座-窗間摩擦力之左右非對稱性，產生因軋延中之金屬板材之蛇行或曲度之產生所造成的軋延操作不安定性增大等問題之可能性。故，會有強力之作業輥彎曲機實質上無法使用之虞。(2) When a strong bending force is applied to the upper work roll 1-1, the arm portion that is connected to the upper reinforcing roll chock 4-1 receives a moment in a direction in which it is released outward. At this time, the arm portion is pressed by the cover window, and the possibility of deterioration in the thickness of the plate due to the increase in the delay of the rolling mill is increased, or the asymmetry of the friction between the bearing seat and the window is generated. The possibility of problems such as the increase in the instability of the rolling operation caused by the serpentine or curvature of the metal sheet of Yanzhong. Therefore, there is a strong work roll bending machine that is virtually unusable.

(3)上作業輥軸承座3-1係與上補強輥軸承座4-1之臂部之內側面接觸，再者，該臂部之側面係與外罩窗內側面接觸。故，因軋延方向之晃蕩不穩變大所造成的軋延中之金屬板材之蛇行‧曲度之產生之虞會增大。(3) The upper work roll chock 3-1 is in contact with the inner side surface of the arm portion of the upper reinforcing roll chock 4-1, and the side surface of the arm portion is in contact with the inner side surface of the outer cover window. Therefore, the occurrence of the meandering of the metal sheet in the rolling due to the sloshing of the rolling direction is increased.

(4)空間之制約嚴格，特別是在補強輥交換時自補強輥軸承座之配線處理複雜。故，欲配備軋機穩定器及軋延方向力測定用荷重元是困難的。(4) The space constraints are strict, especially when the reinforcing roller is exchanged, the wiring processing of the self-reinforcing roller bearing housing is complicated. Therefore, it is difficult to equip the rolling mill stabilizer and the load cell for measuring the rolling direction force.

另一方面，為了取得大的輥開度，存在有以下軋延機，即：如第14圖所示之軋延機1C，上增彎曲裝置6-1、6-2係裝入下作業輥軸承座3-2者。On the other hand, in order to obtain a large roll opening degree, there are the following rolling mills, that is, the rolling mill 1C shown in Fig. 14, the upper bending device 6-1, 6-2 is attached to the lower work roll Bearing housing 3-2.

舉例言之，於專利文獻2中，揭示有一種作業輥之增彎曲裝置裝入作業輥軸承座之軋延機。For example, Patent Document 2 discloses a rolling mill in which a bending device for a work roll is loaded into a work roll chock.

同樣地，於專利文獻3中，揭示有一種輥交叉方式之軋延機。於該軋延機中，增彎曲裝置亦裝入作業輥軸承座。Similarly, in Patent Document 3, there is disclosed a rolling mill of a roll cross type. In the rolling mill, the bending device is also loaded into the work roll chock.

於該形式之軋延機中會有以下問題。There are the following problems in this type of rolling mill.

(5)在重組作業輥時，必須構成油壓配管之裝卸。若作成欲輕易地進行裝卸，則不得不採用撓性配管，且欲採用高響應油壓控制用之伺服閥會變得困難。故，欲構成響應性高之彎曲裝置會變得困難。(5) When reassembling the work rolls, it is necessary to constitute the loading and unloading of the hydraulic piping. If it is intended to be easily loaded and unloaded, flexible piping has to be used, and it is difficult to use a servo valve for high-response hydraulic pressure control. Therefore, it is difficult to form a bending device with high responsiveness.

又，為了作成響應性高之彎曲裝置，週知的是增彎曲裝置配備在凸塊之軋延機。Further, in order to create a highly responsive bending device, it is known that the bending device is provided in a rolling mill of a bump.

舉例言之，於專利文獻4中，揭示有一種具有作業輥位移機能之軋延機。於該軋延機中，如第15圖所示，增彎曲裝置6-1至6-4係裝入與外罩9呈一體的凸塊5-1、5-2。For example, Patent Document 4 discloses a rolling mill having a work roll displacement function. In the rolling mill, as shown in Fig. 15, the bending-increasing devices 6-1 to 6-4 are fitted into the projections 5-1, 5-2 integral with the outer cover 9.

於第15圖所示之軋延機1D中，作用在下作業輥1-2之下增彎曲裝置6-3、6-4係裝入自外罩9朝內側突出的凸塊。In the rolling mill 1D shown in Fig. 15, the bending means 6-3, 6-4 acting under the lower work rolls 1-2 are fitted with the projections projecting inward from the outer cover 9.

(6)由於屬於藉由凸塊與作業輥軸承座之接觸面，支持作用在作業輥之軋延方向力之結構，因此，若將輥開度加大，則該接觸面會減小。故，無法構成作業輥軸承座之適切之支持，且無法取得大的輥開度。(6) Since the contact surface of the work roll is supported by the contact surface between the bump and the work roll chock, the contact surface is reduced if the roll opening is increased. Therefore, it is impossible to form an appropriate support for the work roll chock, and a large roll opening degree cannot be obtained.

(7)增彎曲裝置之油壓缸之容量會藉由凸塊之高度而受到制約。故，在無法充分地確保凸塊之高度的軋延機中，無法充分地確保油壓缸之行程長，且無法取得大的輥開度。(7) The capacity of the hydraulic cylinder of the bending device is limited by the height of the bump. Therefore, in the rolling mill in which the height of the bump cannot be sufficiently ensured, the stroke length of the hydraulic cylinder cannot be sufficiently ensured, and a large roller opening degree cannot be obtained.

另，所謂增彎曲裝置係指賦予作業輥軸承座將輥開度加大之方向的力之油壓裝置，且為包含屬於其致動器的油壓缸及其活塞桿之裝置之總稱。Further, the term "bending device" refers to a hydraulic device that imparts a force in a direction in which the roll opening of the work roll is increased, and is a general term for a device including a hydraulic cylinder and a piston rod of the actuator.

然而，於本發明中，為了簡單地進行說明，只要沒有特別事先聲明，所謂增彎曲裝置係指屬於其致動器的油壓缸及其活塞桿。將藉由增彎曲裝置賦予作業輥之力稱作增彎力。However, in the present invention, as long as the explanation is simple, as long as there is no In particular, it is stated in advance that the so-called bending device refers to a hydraulic cylinder and its piston rod belonging to its actuator. The force that imparts the work roll by the bending device is referred to as the bending force.

另一方面，將賦予作業輥軸承座將輥開度減小之方向的力之油壓裝置稱作減彎曲裝置。又，將藉由減彎曲裝置賦予作業輥之力稱作減彎力。又，所謂減彎曲裝置係包含屬於其致動器的油壓缸及其活塞桿之裝置之總稱。然而，於本發明中，為了簡單地進行說明，只要沒有特別事先聲明，所謂減彎曲裝置係指屬於其致動器的油壓缸及其活塞桿。On the other hand, a hydraulic device that imparts a force in a direction in which the work roll chock reduces the degree of opening of the roll is referred to as a buckling device. Moreover, the force which imparts a work roll by a bending-reduction apparatus is called a bending-reduction force. Further, the reduction bending device is a general term for a device including a hydraulic cylinder and a piston rod of the actuator. However, in the present invention, for the sake of simplicity, the term "bending reduction means" refers to a hydraulic cylinder and its piston rod belonging to the actuator thereof unless otherwise stated.

另，如第12至16圖所示，一般用以製造厚鋼板之軋延機並未配備減彎曲裝置(參照專利文獻1至4)。Further, as shown in Figs. 12 to 16, the rolling mill generally used for manufacturing a thick steel plate is not provided with a bending reduction device (refer to Patent Documents 1 to 4).

此係起因於下述等，即：(A)厚板軋延時，相較於薄板軋延，由於使用相對而言大直徑之作業輥，因此，即使賦予相同之彎力，軋輥冠高形狀之變化亦小；進而是(B)相較於薄板軋延機，即使在相對而言大直徑之作業輥軸承座周邊之狹隘部分設置小的減彎曲裝置，控制範圍亦狹窄，且只是將機械結構複雜化，在成本效益上是不利的。This is due to the following: (A) thick plate rolling delay, compared to sheet rolling, due to the use of relatively large diameter work rolls, even if the same bending force is imparted, the roll crown is high in shape. The change is also small; in turn, (B) compared to the thin-plate rolling mill, even if a small bending device is provided in the narrow portion around the relatively large-diameter work roll chock, the control range is narrow, and only the mechanical structure is Complexity is disadvantageous in terms of cost effectiveness.

先行技術文獻Advanced technical literature 專利文獻Patent literature

[專利文獻1]日本專利公開公報特開平6-87011號公報[Patent Document 1] Japanese Patent Laid-Open Publication No. Hei 6-87011

[專利文獻2]日本特開昭62-220205號公報[Patent Document 2] Japanese Laid-Open Patent Publication No. 62-220205

[專利文獻3]日本特開平6-198307號公報[Patent Document 3] Japanese Patent Laid-Open No. Hei 6-198307

[專利文獻4]日本特開平4-52014號公報[Patent Document 4] Japanese Patent Publication No. 4-52014

發明概要Summary of invention

如前述，在可大幅地取得輥開度之軋延機中，可裝入響應性高且強力之輥彎曲裝置的軋延機形式於習知技術中並不存在。As described above, in the rolling mill in which the roll opening degree can be largely obtained, the rolling mill type in which the roll bending apparatus having high responsiveness and strength can be incorporated does not exist in the prior art.

本發明欲解決之課題係提供以下軋延機及使用該軋延機之軋延方法，即：可大幅地取得上下作業輥間之最大開度，同時可賦予強力之輥彎力者。The problem to be solved by the present invention is to provide a rolling mill and a rolling method using the same, that is, a maximum opening degree between the upper and lower work rolls can be obtained, and a strong roll bending force can be imparted.

即，本發明之目的係提供以下軋延機及使用該軋延機之軋延方法，即：為了作成可因應廣範圍厚度之鋼板的軋延機，在將具備與薄板軋延機相同之減彎曲裝置作為前提後，可大幅地取得上下作業輥間之輥開度，同時可輕易地賦予強力之輥彎力，並克服前述習知軋延機所具有的缺點者。That is, the object of the present invention is to provide a rolling mill and a rolling method using the same, that is, in order to produce a rolling mill capable of responding to a wide range of thicknesses, the same reduction as that of a sheet rolling mill will be provided. As a premise of the bending device, the roller opening degree between the upper and lower work rolls can be largely obtained, and at the same time, the strong roll bending force can be easily imparted, and the disadvantages of the conventional rolling mill can be overcome.

本發明之要旨如下。The gist of the present invention is as follows.

(1)本發明之第一態樣係一種金屬板材之軋延機，且該金屬板材之軋延機包含有：上作業輥及下作業輥，係軋延金屬板材者；上補強輥及下補強輥，係分別支持前述上作業輥及前述下作業輥者；上作業輥軸承座及下作業輥軸承座，係分別支持前述上作業輥及前述下作業輥者；上補強輥軸承座及下補強輥軸承座，係分別支持前述上補強輥及前述下補強輥者；外罩，係收納前述上作業輥軸承座、前述下作業輥軸承座、前述上補強輥軸承座及前述下補強輥軸承座，並具有相互朝內側突出而負擔作用在前述下作業輥之軋延方向力的一對第1凸塊，且形成負擔作用在前述上作業輥之軋延方向力的外罩窗者；第1油壓缸，係設置於前述一對第1凸塊，並具有透過前述上作業輥軸承座賦予前述上作業輥增彎力之第1活塞桿者；第2油壓缸，係設置於前述一對第1凸塊，並具有透過前述下作業輥軸承座賦予前述下作業輥增彎力之第2活塞桿者；第3油壓缸，係設置於前述上補強輥軸承座，並具有賦予前述上作業輥減彎力，或使前述上作業輥與前述上補強輥接觸而產生輥平衡力之第3活塞桿者；及第4油壓缸，係具有賦予前述下作業輥減彎力之第4活塞桿者。(1) The first aspect of the present invention is a rolling mill for sheet metal, and the rolling mill for the sheet metal comprises: an upper work roll and a lower work roll, which are rolled metal sheets; an upper reinforcing roll and a lower The reinforcing roller supports the upper working roller and the lower working roller respectively; the upper working roller bearing seat and the lower working roller bearing seat respectively support the upper working roller and the lower working roller; the upper reinforcing roller bearing seat and the lower The reinforcing roller bearing seat supports the above-mentioned upper reinforcing roller and the aforementioned lower reinforcing roller respectively; the outer cover is for accommodating the upper working roller bearing seat, front The work roll chock, the upper reinforcing roll chock, and the lower reinforcing roll chock are described, and a pair of first bumps that protrude toward the inside and bear the rolling direction force acting on the lower work roll are formed and formed An outer cover window that acts on the rolling direction force of the upper work roll; the first hydraulic cylinder is disposed on the pair of first projections, and has a bending of the upper work roll through the upper work roll chock a first piston rod; the second hydraulic cylinder is provided on the pair of first projections, and has a second piston rod that transmits a bending force to the lower work roller through the lower work roll bearing housing; a hydraulic cylinder is provided in the upper reinforcing roller bearing housing, and has a third piston rod that imparts a bending force to the upper working roller or a contact force between the upper working roller and the upper reinforcing roller to generate a roller balancing force; And the fourth hydraulic cylinder is a fourth piston rod that imparts a bending force to the lower work roll.

(2)於如前述(1)之金屬板材之軋延機中，前述第1油壓缸與前述第2油壓缸亦可於前述一對第1凸塊內設置在平面圖上相互不同之位置。(2) In the rolling mill for sheet metal according to the above (1), the first hydraulic cylinder and the second hydraulic cylinder may be disposed in different positions in a plan view in the pair of first projections. .

(3)於如前述(1)或(2)之金屬板材之軋延機中，亦可於前述下補強輥軸承座設置前述第4油壓缸。(3) In the rolling mill for sheet metal according to the above (1) or (2), the fourth hydraulic cylinder may be provided in the lower reinforcing roller bearing housing.

(4)於如前述(1)或(2)之金屬板材之軋延機中，前述外罩亦可更包含有於前述一對第1凸塊之下方自前述外罩朝內側突出的一對第2凸塊，且於前述一對第2凸塊設置有前述第4油壓缸。(4) In the rolling mill for sheet metal according to the above (1) or (2), the outer cover may further include a pair of second ones protruding from the outer cover toward the inner side below the pair of first projections. The bump is provided with the fourth hydraulic cylinder in the pair of second bumps.

(5)於如前述(1)至(4)中任一項之金屬板材之軋延機中，亦可於前述第3活塞桿之前端部形成第1卡合部，且於前述上作業輥軸承座，形成前述第1卡合部藉由前述上作業輥之輥軸方向移動而卡合的第2卡合部。(5) In the rolling mill for sheet metal according to any one of the above (1) to (4), the first engaging portion may be formed at the front end portion of the third piston rod, and the upper working roller may be formed The bearing housing forms the first engaging portion by the aforementioned upper work The second engaging portion that is moved in the roller axis direction and engaged with the roller.

(6)本發明之第二態樣係一種金屬板材之軋延方法，且該金屬板材之軋延方法係使用如前述(1)至(5)中任一項之前述軋延機者，又，在藉由大於前述第1油壓缸之行程的輥開度進行軋延時，會藉由前述第3活塞桿之拉引操作產生輥平衡力。(6) The second aspect of the present invention is a rolling method of a metal sheet, and the rolling method of the sheet metal is the same as the calender described in any one of the above (1) to (5), The rolling delay is performed by the opening degree of the roller which is larger than the stroke of the first hydraulic cylinder, and the roller balancing force is generated by the pulling operation of the third piston rod.

(7)本發明之第三態樣係一種金屬板材之軋延方法，且該金屬板材之軋延方法係使用如前述(1)至(5)中任一項之前述軋延機者，又，在藉由未大於前述第1油壓缸之行程的輥開度進行軋延時，會進行以下步驟，即：第1步驟，係於開始軋延前，使增彎力與減彎力雙方作用在前述上作業輥及前述下作業輥，藉此，作成合力而使相當於輥平衡力之輥彎力作用在前述上作業輥及前述下作業輥者；第2步驟，係之後使前述減彎力變化成相當於軋延中減彎力之減彎力，並增加前述增彎力，使合力維持前述輥平衡力者；第3步驟，係於開始軋延時，保持前述減彎力，並使前述增彎力變化，藉此，作成合力而使相當於軋延中輥彎力之輥彎力作用在前述上作業輥及前述下作業輥者；第4步驟，係保持前述軋延中輥彎力而進行軋延者；第5步驟，係於結束軋延時，保持前述減彎力，並使前述增彎力變化，藉此，作成合力而使相當於前述輥平衡力之輥彎力作用在前述上作業輥及前述下作業輥，並於該狀態下結束金屬板材之軋延者；及第6步驟，係之後減少前述減彎力與前述增彎力，以維持前述輥平衡力者。(7) The third aspect of the present invention is a rolling method of a metal sheet, and the rolling method of the sheet metal is the same as the calender described in any one of the above (1) to (5), When the rolling delay is performed by the roll opening degree which is not larger than the stroke of the first hydraulic cylinder, the following steps are performed, that is, the first step is to apply both the bending force and the bending force before starting the rolling The upper work roll and the lower work roll are combined to cause a roll bending force corresponding to the roll balance force to act on the upper work roll and the lower work roll; and in the second step, the bending is performed The force is changed to the bending force corresponding to the bending force in the rolling, and the bending force is increased to maintain the balancing force of the roller; the third step is to start the rolling delay, maintain the aforementioned bending force, and The bending force is changed to thereby cause a roll bending force corresponding to the roll bending force of the rolling to act on the upper work roll and the lower work roll, and the fourth step is to maintain the roll in the roll. The rolling is performed by force; the fifth step is to end the rolling delay and maintain the aforementioned bending force. And changing the bending force, thereby causing a combined force to apply a roll bending force corresponding to the roll balance force to the upper work roll and the lower work roll, and ending the rolling of the metal sheet in this state; And the sixth step, after the reduction of the aforementioned bending force and the aforementioned bending force to maintain the balance of the roller.

(8)於如前述(7)之金屬板材之軋延方法中，亦可連續地測定前述第3油壓缸內之油壓、與前述第3油壓缸接連的油壓配管內之油壓、前述第4油壓缸內之油壓及與前述第4油壓缸接連的油壓配管內之油壓之至少一者，並根據其測定值，控制前述增彎力，使作成合力而作用在前述上作業輥軸承座及前述下作業輥軸承座之前述輥彎力構成預定值。(8) In the rolling method of the metal sheet according to the above (7), the hydraulic pressure in the third hydraulic cylinder and the oil pressure in the hydraulic piping connected to the third hydraulic cylinder may be continuously measured. And at least one of a hydraulic pressure in the fourth hydraulic cylinder and a hydraulic pressure in the hydraulic pressure pipe connected to the fourth hydraulic cylinder, and controlling the bending force according to the measured value to act as a resultant force The aforementioned roll bending force of the upper work roll chock and the lower work roll chock constitutes a predetermined value.

(9)本發明之第四態樣係一種金屬板材之軋延方法，且該金屬板材之軋延方法係使用如前述(1)至(5)中任一項之前述軋延機者，又，軋延時，在藉由大於前述第1油壓缸之行程的輥開度進行軋延時，會藉由前述第3活塞桿之拉引操作，賦予前述上作業輥之輥平衡力，然後，在藉由未大於前述第1油壓缸之行程的輥開度進行軋延時，會進行以下步驟，即：第1步驟，係於開始軋延前，使增彎力與減彎力雙方作用在前述上作業輥及前述下作業輥，藉此，作成合力而使相當於輥平衡力之輥彎力作用在前述上作業輥及前述下作業輥者；第2步驟，係之後使前述減彎力變化成相當於軋延中減彎力之減彎力，並增加前述增彎力，使合力維持前述輥平衡力者；第3步驟，係於開始軋延時，保持前述減彎力，並使前述增彎力變化，藉此，作成合力而使相當於軋延中輥彎力之輥彎力作用在前述上作業輥及前述下作業輥者；第4步驟，係保持前述軋延中輥彎力而進行軋延者；第5步驟，係於結束軋延時，保持前述減彎力，並使前述增彎力變化，藉此，作成合力而使相當於前述輥平衡力之輥彎力作用在前述上作業輥及前述下作業輥，並於該狀態下結束金屬板材之軋延者；及第6步驟，係之後減少前述減彎力與前述增彎力，以維持前述輥平衡力者。(9) The fourth aspect of the present invention is a rolling method of a metal sheet, and the rolling method of the sheet metal is the same as the calender described in any one of the above (1) to (5), Rolling delay, the rolling delay is performed by the roll opening degree larger than the stroke of the first hydraulic cylinder, and the balance of the roller of the upper work roll is given by the pulling operation of the third piston rod, and then The rolling delay is performed by the opening degree of the roller which is not larger than the stroke of the first hydraulic cylinder, and the first step is to perform the first step of applying the bending force and the bending force to the foregoing before starting the rolling. The upper work roll and the lower work roll are combined to cause a roll bending force corresponding to the roll balance force to act on the upper work roll and the lower work roll; and in the second step, the bending force is changed Corresponding to the bending force of the bending force in the rolling, and increasing the aforementioned bending force, so that the resultant force maintains the balancing force of the roller; the third step is to start the rolling delay, maintain the aforementioned bending force, and increase the aforementioned The bending force is changed, thereby making a resultant force and making the roll bending corresponding to the bending force of the rolling roll Acting on the upper work roll and the lower work roll; the fourth step is to maintain the roll bending force during the rolling and to perform the rolling; and the fifth step is to complete the rolling delay, maintain the bending force, and The bending force is changed to thereby cause a roll bending force corresponding to the balance of the rolls to act on the upper work roll and the lower work roll, and in this state The end of the metal sheet rolling; and the sixth step, after the reduction of the aforementioned bending force and the aforementioned bending force to maintain the balance of the aforementioned roller.

(10)於如前述(9)之金屬板材之軋延方法中，亦可連續地測定前述第3油壓缸內之油壓、與前述第3油壓缸接連的油壓配管內之油壓、前述第4油壓缸內之油壓及與前述第4油壓缸接連的油壓配管內之油壓之至少一者，並根據其測定值，控制前述增彎力，使作成合力而作用在前述上作業輥軸承座及前述下作業輥軸承座之前述輥彎力構成預定值。(10) In the rolling method of the metal sheet according to the above (9), the hydraulic pressure in the third hydraulic cylinder and the oil pressure in the hydraulic piping connected to the third hydraulic cylinder may be continuously measured. And at least one of a hydraulic pressure in the fourth hydraulic cylinder and a hydraulic pressure in the hydraulic pressure pipe connected to the fourth hydraulic cylinder, and controlling the bending force according to the measured value to act as a resultant force The aforementioned roll bending force of the upper work roll chock and the lower work roll chock constitutes a predetermined value.

若藉由如前述(1)至(10)之軋延機及軋延方法，則可大幅地取得上下作業輥間之最大開度，同時即使是在不得不配備響應性低之減彎曲裝置時，配備於一對第1凸塊之響應性高之增彎曲裝置亦可將其加以補償而賦予高響應且強力之板冠高(plate crown)‧形狀控制機能。According to the rolling mill and the rolling method as described in the above (1) to (10), the maximum opening degree between the upper and lower work rolls can be largely obtained, and even when the bending device having low responsiveness has to be provided The increased bending device equipped with a pair of first bumps can also compensate for the high response and strong plate crown and shape control functions.

故，即使對於軋延材入口側板厚或軋延材溫度等在軋延中變動的干擾，亦可精心製成良好之板冠高‧形狀，且可大幅地改善製品品質及良率。Therefore, even if the thickness of the inlet side of the rolled material or the temperature of the rolled product is disturbed during rolling, a good crown height and shape can be carefully formed, and the product quality and yield can be greatly improved.

又，不僅可賦予上作業輥增彎力及減彎力而實現強力之板冠高‧形狀控制機能，由於在上作業輥減彎曲裝置中採用複動式油壓缸而作成可產生輥平衡力，因此，亦可實現大開度之輥間隙。即，從板厚大的分塊軋延，到要求正確之板冠高‧形狀控制之熱軋薄板軋延，可藉由一台來因應。In addition, it is possible to impart a strong crown height and a shape control function by imparting a bending force and a bending force to the upper work roll, and a balance force can be generated by using a double-acting hydraulic cylinder in the upper work roll reduction device. Therefore, it is also possible to realize a roll gap of a large opening. That is, from the rolling of the block having a large thickness to the rolling of the hot-rolled sheet requiring the correct crown height and shape control, one can be used.

又，由於常時藉由外罩窗來負擔施加於上作業輥軸承座之軋延方向力，因此，可安定地支撐上作業輥軸承座。Moreover, since it is often burdened by the outer window to the upper work roll bearing The rolling force of the seat is rolled, so that the upper work bearing housing can be stably supported.

又，可將上下增彎曲裝置裝入一對第1凸塊。藉此，可實現大容量‧大行程之強力彎曲裝置。Further, the upper and lower bending device can be incorporated in the pair of first projections. Thereby, a powerful bending device with a large capacity and a large stroke can be realized.

又，藉由將增彎曲裝置裝入一對第1凸塊，可將油壓配管固定化，且可應用伺服閥。藉此，可構成高響應之增彎力之控制。Further, by adding the bending device to the pair of first projections, the hydraulic piping can be fixed, and the servo valve can be applied. Thereby, the control of the bending force with high response can be constructed.

即使是響應性低之減彎曲裝置，藉由與響應性高之增彎曲裝置之合作，亦可構成高響應之輥彎力控制。藉此，可大幅地改善製品品質、軋延良率。Even a low-resilience bending device can form a highly responsive roll bending force control by cooperation with a highly responsive bending device. Thereby, the product quality and the rolling yield can be greatly improved.

圖式簡單說明Simple illustration

第1圖係顯示有關本發明之一實施形態的軋延機之結構側視圖。Fig. 1 is a side view showing the structure of a rolling mill according to an embodiment of the present invention.

第2圖係顯示上作業輥軸承座與上減彎曲裝置之連接結構圖。Figure 2 is a view showing the connection structure of the upper work roll chock and the upper and lower bending device.

第3A圖係顯示第3油壓缸之第3活塞桿之第1卡合部與上作業輥軸承座之第2卡合部的卡合關係之第1態樣之截面圖。Fig. 3A is a cross-sectional view showing a first aspect of the engagement relationship between the first engaging portion of the third piston rod of the third hydraulic cylinder and the second engaging portion of the upper work roll chock.

第3B圖係顯示第3油壓缸之第3活塞桿之第1卡合部與上作業輥軸承座之第2卡合部的卡合關係之第2態樣之截面圖。Fig. 3B is a cross-sectional view showing a second aspect of the engagement relationship between the first engaging portion of the third piston rod of the third hydraulic cylinder and the second engaging portion of the upper work roll chock.

第3C圖係顯示第3油壓缸之第3活塞桿之第1卡合部與上作業輥軸承座之第2卡合部的卡合關係之第3態樣之截面圖。Fig. 3C is a cross-sectional view showing a third aspect of the engagement relationship between the first engaging portion of the third piston rod of the third hydraulic cylinder and the second engaging portion of the upper work roll chock.

第4圖係顯示上下增彎曲裝置之配置例之透視平面圖。Fig. 4 is a perspective plan view showing an arrangement example of the upper and lower bending device.

第5圖係顯示上下增彎曲裝置之配置例之透視平面圖。Fig. 5 is a perspective plan view showing an arrangement example of the upper and lower bending device.

第6圖係顯示有關本發明之一實施形態的軋延機之結構的另外一例之側視圖。Fig. 6 is a side view showing another example of the structure of a rolling mill according to an embodiment of the present invention.

第7圖係顯示有關本發明之一實施形態的軋延方法之操作流程之一例之圖。Fig. 7 is a view showing an example of an operation flow of a rolling method according to an embodiment of the present invention.

第8圖係顯示伴隨著第7圖之操作流程的輥彎力等之時間序列變化圖。Fig. 8 is a time-series change diagram showing the roll bending force and the like accompanying the operation flow of Fig. 7.

第9圖係顯示減彎曲裝置之響應性極低時的輥彎力等之時間序列變化圖。Fig. 9 is a time-series change diagram showing the roll bending force and the like when the responsiveness of the bending reduction device is extremely low.

第10圖係顯示有關本發明之一實施形態的軋延方法之操作流程之另外一例之圖。Fig. 10 is a view showing another example of the operation flow of the rolling method according to an embodiment of the present invention.

第11圖係顯示伴隨著第10圖之操作流程的輥彎力等之時間序列變化圖。Fig. 11 is a time-series change diagram showing the roll bending force and the like accompanying the operation flow of Fig. 10.

第12圖係顯示有關習知技術的軋延機1A之結構側視圖。Fig. 12 is a side view showing the structure of a rolling mill 1A relating to the prior art.

第13圖係顯示有關習知技術的軋延機1B之結構側視圖。Fig. 13 is a side view showing the structure of a rolling mill 1B relating to the prior art.

第14圖係顯示有關習知技術的軋延機1C之結構側視圖。Fig. 14 is a side view showing the structure of a rolling mill 1C relating to the prior art.

第15圖係顯示有關習知技術的軋延機1D之結構側視圖。Fig. 15 is a side view showing the structure of a rolling mill 1D relating to the prior art.

第16圖係顯示有關習知技術的軋延機1E之結構側視圖。Fig. 16 is a side view showing the structure of the calender 1E of the prior art.

用以實施發明之形態Form for implementing the invention

以下，參照第1至16圖，說明根據前述見識的有關本發明之軋延機及使用該軋延機之軋延方法。Hereinafter, a rolling mill according to the present invention and a rolling method using the same will be described with reference to Figs. 1 to 16.

第1圖係顯示有關本發明之一實施形態的軋延機1之結構之一例之側視圖。如該圖式所示，有關本發明之一實施形態的軋延機1包含有：上作業輥軸承座3-1及下作業輥軸承座3-2；上補強輥軸承座4-1及下補強輥軸承座4-2；及外罩9，係收納該等輥軸承座者。於外罩9一體地形成一對第1 凸塊5-1、5-2(即，設置於金屬板材之入口側的第1凸塊與設置於出口側的第1凸塊)，並形成外罩窗12。Fig. 1 is a side view showing an example of the structure of a rolling mill 1 according to an embodiment of the present invention. As shown in the figure, a rolling mill 1 according to an embodiment of the present invention includes: an upper work roll chock 3-1 and a lower work roll chock 3-2; an upper reinforcing roll chock 4-1 and lower The reinforcing roller bearing housing 4-2; and the outer cover 9 are those that accommodate the roller bearing housings. Forming a pair of first ones integrally with the outer cover 9 The bumps 5-1 and 5-2 (that is, the first bumps provided on the inlet side of the metal plate and the first bumps provided on the outlet side) form the outer cover window 12.

上作業輥軸承座3-1係支持軋延金屬板材之上作業輥1-1，下作業輥軸承座3-2係支持軋延金屬板材之下作業輥1-2。The upper work roll chock 3-1 supports the work roll 1-1 on the rolled metal sheet, and the lower work roll chock 3-2 supports the work roll 1-2 under the rolled metal sheet.

又，上補強輥軸承座4-1係支持被配置在上作業輥1-1之上方的上補強輥2-1，下補強輥軸承座4-2係支持被配置在下作業輥1-2之下方的下補強輥。Further, the upper reinforcing roller bearing housing 4-1 supports the upper reinforcing roller 2-1 disposed above the upper work roller 1-1, and the lower reinforcing roller bearing housing 4-2 supports the lower reinforcing roller 1-2. Lower reinforcement roller below.

一對第1凸塊5-1、5-2係一體形成為自外罩9相互朝內側突出。又，於一對第1凸塊5-1、5-2設置有：上增彎曲裝置6-1、6-2，係透過上作業輥軸承座3-1，賦予上作業輥1-1增彎力者；及下增彎曲裝置6-3、6-4，係透過下作業輥軸承座3-2，賦予下作業輥1-2增彎力者。The pair of first projections 5-1 and 5-2 are integrally formed so as to protrude from the outer cover 9 toward the inner side. Further, the pair of first projections 5-1 and 5-2 are provided with upper bending devices 6-1 and 6-2 which are transmitted through the upper work roll chock 3-1 to give the upper work roll 1-1 The bending force; and the lower bending device 6-3, 6-4 pass through the lower work roll chock 3-2 to impart the bending force to the lower work roll 1-2.

具體而言，上增彎曲裝置6-1、6-2係藉由屬於其致動器的第1油壓缸及其活塞桿(第1活塞桿)所構成。第1油壓缸係內建於一對第1凸塊5-1、5-2，且第1活塞桿係設置成其前端部自一對第1凸塊5-1、5-2之上面突出而與上作業輥軸承座3-1接觸。Specifically, the upper bending devices 6-1 and 6-2 are constituted by a first hydraulic cylinder belonging to the actuator and a piston rod (first piston rod). The first hydraulic cylinder is built in the pair of first projections 5-1 and 5-2, and the first piston rod is disposed such that the front end portion thereof is above the pair of first projections 5-1 and 5-2. It protrudes and comes into contact with the upper work roll chock 3-1.

又，下增彎曲裝置6-3、6-4係藉由屬於其致動器的第2油壓缸及其活塞桿(第2活塞桿)所構成。第2油壓缸係內建於一對第1凸塊5-1、5-2，且第2活塞桿係設置成其前端部自一對第1凸塊5-1、5-2之下面突出而與下作業輥軸承座3-2接觸。Further, the lower bending devices 6-3 and 6-4 are constituted by a second hydraulic cylinder belonging to the actuator and a piston rod (second piston rod). The second hydraulic cylinder is built in the pair of first projections 5-1 and 5-2, and the second piston rod is disposed such that the front end portion thereof is below the pair of first projections 5-1 and 5-2. It protrudes and comes into contact with the lower work roll chock 3-2.

再者，於有關本實施形態之軋延機1中，具有以下機能之上減彎曲裝置7-1、7-2係配備於上補強輥軸承座4-1內，即：透過上作業輥軸承座3-1賦予上作業輥1-1減彎力者；及使可使上作業輥1-1與上補強輥2-1接觸的提升力(輥平衡力)作用者。Furthermore, in the rolling mill 1 according to the present embodiment, the following functions are obtained. The upper bending reducing devices 7-1, 7-2 are provided in the upper reinforcing roller bearing housing 4-1, that is, the upper working roller 1-1 is biased by the upper working roller bearing housing 3-1; The lifting force (roller balance force) that can bring the upper work roll 1-1 into contact with the upper reinforcing roll 2-1 acts.

具有前述2種機能之上減彎曲裝置7-1、7-2係藉由屬於其致動器的第3油壓缸及其活塞桿(第3活塞桿)所構成。第3油壓缸係配備於上補強輥軸承座4-1內。第3活塞桿係具有其前端部卡合於上作業輥軸承座3-1之形狀。The above-described two kinds of functional upper bending reduction devices 7-1 and 7-2 are constituted by a third hydraulic cylinder belonging to the actuator and a piston rod (third piston rod). The third hydraulic cylinder is provided in the upper reinforcing roller bearing housing 4-1. The third piston rod has a shape in which the front end portion is engaged with the upper work roll chock 3-1.

又，有關本實施形態之軋延機1係具有下減彎曲裝置7-3、7-4，且該下減彎曲裝置7-3、7-4係透過下作業輥軸承座3-2賦予下作業輥1-2減彎力。Further, the rolling mill 1 of the present embodiment has lower bending devices 7-3 and 7-4, and the lower bending devices 7-3 and 7-4 are passed through the lower work roll chock 3-2. The work roll 1-2 reduces the bending force.

該下減彎曲裝置7-3、7-4係藉由屬於其致動器的第4油壓缸及其活塞桿(第4活塞桿)所構成。第4油壓缸係配備於下補強輥軸承座4-2，或內建於後述一對第2凸塊5-3、5-4。第4活塞桿係設置成其前端部與下作業輥軸承座3-2接觸。The lower bending reduction devices 7-3 and 7-4 are constituted by a fourth hydraulic cylinder belonging to the actuator and a piston rod (fourth piston rod). The fourth hydraulic cylinder is provided in the lower reinforcing roller bearing housing 4-2 or built in a pair of second projections 5-3 and 5-4 which will be described later. The fourth piston rod is disposed such that its front end portion comes into contact with the lower work roll chock 3-2.

於凸塊設置增彎曲裝置且於上下補強輥軸承座設置減彎曲裝置之形式係熱軋精軋延機中常有的形式。然而，於該形式中，必須藉由設置於金屬板材之出口側的凸塊之上游側面與作業輥軸承座之抵接面，支持軋延操作時之軋延方向力。故，隨著將輥開度加大，上作業輥之旋轉力矩之中心位置會自前述接觸面朝上方遠離，同時支持前述軋延方向力的接觸面之面積會減少。故，於上作業輥軸承座中，即使將一對凸塊之高度加大，隨著將輥開度加大，凸塊之上游側面與作業輥軸承座之接觸面亦會減小，同時上作業輥軸承座之姿勢變得不安定，且無法取得大的輥開度。The form in which the buckling device is provided with the buckling device and the buckling device is provided in the upper and lower reinforcing roller chocks is a common form in the hot rolling finishing mill. However, in this form, it is necessary to support the rolling direction force during the rolling operation by the abutting surface of the upstream side surface of the bump provided on the outlet side of the metal sheet and the work roll chock. Therefore, as the opening degree of the roller is increased, the center position of the rotational torque of the upper work roll is away from the contact surface upward, and the area of the contact surface supporting the rolling direction force is reduced. Therefore, in the upper work roll chock, even if the height of the pair of bumps is increased, as the roll opening degree is increased, the contact surface between the upstream side of the bump and the work roll chock is also reduced, and at the same time operation The posture of the roller bearing housing becomes unstable, and a large roller opening degree cannot be obtained.

改良該點者係以下形式之厚板精軋延機中常有的形式之軋延機1E，即：第16圖所示之上補強輥軸承座4-1係具備抱住上作業輥軸承座3-1之臂部者。於該形式之軋延機中，由於上補強輥軸承座4-1係抱住上作業輥軸承座3-1，因此，伴隨著上補強輥2-1之提升，上作業輥1-1亦會跟著升起，且可取得大的輥開度。The improvement of this point is the rolling mill 1E of the form commonly found in the thick plate finishing rolling mill of the following form, that is, the upper reinforcing roller bearing seat 4-1 shown in Fig. 16 is provided with the upper work roll chock 3 -1 arm. In the rolling mill of this type, since the upper reinforcing roller bearing housing 4-1 holds the upper working roller bearing housing 3-1, the upper working roller 1-1 is also accompanied by the lifting of the upper reinforcing roller 2-1. It will rise up and a large roll opening can be achieved.

然而，該軋延機之結構並無法充分地取得上作業輥1-1用之增彎曲裝置及減彎曲裝置之設置場所。故，如第16圖所示，通常，針對上作業輥1-1，會僅將小容量之增彎曲裝置6-1、6-2設置於上補強輥軸承座4-1與上作業輥軸承座3-1間，且並未配備上作業輥1-1用之減彎曲裝置。故，會有形狀控制能力受限之缺點。However, the structure of the rolling mill does not sufficiently obtain the installation place of the bending device and the bending reduction device for the upper work roll 1-1. Therefore, as shown in Fig. 16, normally, for the upper work roll 1-1, only the small-capacity bending and bending devices 6-1, 6-2 are placed on the upper reinforcing roller bearing block 4-1 and the upper work roll bearing. Block 3-1, and is not equipped with the bending device for the work roll 1-1. Therefore, there is a disadvantage that the shape control ability is limited.

再者，作用在上作業輥1-1之軋延方向力係藉由上補強輥軸承座4-1與上作業輥軸承座3-1之軋延方向下游側抵接面來承受。又，該力更藉由上補強輥軸承座4-1之軋延方向下游側臂部之外側面與外罩窗12之內側之抵接面所構成的接觸面而最後受到阻擋。然而，前述軋延方向下游側抵接面之空間狹窄，欲配備可充分地支持上作業輥軸承座3-1之荷重元是困難的。又，除了在前述上補強輥軸承座4-1與外罩窗12之接觸面亦會留下晃蕩不穩外，每個補強輥軸承座皆必須作成穩定器或荷重元，且針對使該等作動的配線處理，亦會使其作業性明顯地降低。Further, the rolling direction force acting on the upper work roll 1-1 is received by the upper reinforcing roll chock 4-1 and the upstream side abutting surface of the upper work roll chock 3-1 in the rolling direction. Further, the force is finally blocked by the contact surface formed by the abutting surface of the outer side surface of the upper side arm portion in the rolling direction of the upper reinforcing roller bearing housing 4-1 and the inner side of the outer cover window 12. However, the space of the abutting surface on the downstream side in the rolling direction is narrow, and it is difficult to provide a load cell which can sufficiently support the upper work roll chock 3-1. Moreover, in addition to the swaying instability of the contact surface between the upper reinforcing roller bearing block 4-1 and the outer cover window 12, each reinforcing roller bearing block must be made into a stabilizer or a load cell, and The wiring treatment will also significantly reduce the workability.

故，於有關本實施形態之軋延機1中，如第1圖所示，將自外罩9朝其內側突出的一對第1凸塊5-1、5-2，配置在相對於通道線朝下側位移之位置。即，與第15圖所示之習知方式不同，相對於通道線，在上下非對稱之位置配置一對第1凸塊5-1、5-2。再者，針對上作業輥軸承座3-1之形狀，並非是將夾入前述一對第1凸塊5-1、5-2之部分之高度加大，而是將與夾入前述一對第1凸塊5-1、5-2之部分鄰接的基底部分，換言之，對應於外罩窗12之寬度(外罩窗寬度)的上側部分之高度加大。Therefore, in the rolling mill 1 according to the present embodiment, as shown in Fig. 1, The pair of first projections 5-1 and 5-2 projecting from the outer cover 9 toward the inner side thereof are disposed at positions displaced downward with respect to the passage line. That is, unlike the conventional method shown in Fig. 15, a pair of first bumps 5-1 and 5-2 are disposed at the upper and lower asymmetrical positions with respect to the channel line. Further, the shape of the upper work roll chock 3-1 is not such that the height of the portion sandwiching the pair of first bumps 5-1, 5-2 is increased, but the pair is sandwiched The base portion of the first projections 5-1, 5-2 adjacent to each other, in other words, the height of the upper portion corresponding to the width of the outer cover window 12 (the width of the outer cover window) is increased.

藉此，於有關本實施形態之軋延機1中，藉由上作業輥軸承座3-1之對應於外罩窗寬度的上側部分與位於一對第1凸塊5-1、5-2之上方的外罩窗12之接觸面，負擔作用在上作業輥1-1之偏位分力等之軋延方向力，即，自金屬板材10或上補強輥2-1等施加於上作業輥1-1之軀體部之軋延方向力。Therefore, in the rolling mill 1 according to the present embodiment, the upper portion corresponding to the width of the outer cover window of the upper work roll chock 3-1 and the pair of first bumps 5-1, 5-2 are The contact surface of the upper cover window 12 is applied to the rolling direction force acting on the biasing force of the upper work roll 1-1, that is, from the metal sheet 10 or the upper reinforcing roller 2-1 to the upper work roll 1 -1 The rolling direction force of the body part.

若作成此種結構，則即使操作軋延機1之壓下裝置11而將輥開度加大，上作業輥軸承座3-1與外罩窗12接觸之面的面積亦都不會變化。故，上作業輥軸承座3-1之姿勢係與輥開度無關而常時可安定地保持。According to this configuration, even if the pressing device 11 of the rolling mill 1 is operated to increase the opening degree of the roll, the area of the surface on which the upper work roll chock 3-1 and the outer cover window 12 are in contact does not change. Therefore, the posture of the upper work roll chock 3-1 is constantly maintained regardless of the roll opening degree.

再者，於有關本實施形態之軋延機1中，將賦予上作業輥1-1增彎力之上增彎曲裝置6-1、6-2與賦予下作業輥1-2增彎力之下增彎曲裝置6-3、6-4，配備在朝外罩9之內側突出的一對第1凸塊5-1、5-2。Further, in the rolling mill 1 according to the present embodiment, the bending means 6-1, 6-2 and the bending force imparted to the lower work roll 1-2 are applied to the upper work roll 1-1. The lower bending devices 6-3 and 6-4 are provided with a pair of first projections 5-1 and 5-2 that protrude toward the inner side of the outer cover 9.

故，無需在每次作業輥之重組作業時即裝卸增彎曲裝置之油壓配管，且藉由作成固定配管，可作成使用精密之伺服閥的響應性高之增彎曲裝置。Therefore, it is not necessary to attach or detach the hydraulic piping of the bending device every time the reworking of the work rolls, and by making the fixed piping, it is possible to manufacture a bending device with high responsiveness using a precision servo valve.

又，藉由內建於上補強輥軸承座4-1之第3油壓缸及其第3活塞桿，構成上減彎曲裝置7-1、7-2。又，將第3油壓缸之第3活塞桿之前端作成以下形式，即：作成可藉由伴隨著輥交換等的輥軸方向移動操作而與上作業輥軸承座3-1連接，並進行輥平衡力之賦予者。Further, the upper and lower bending devices 7-1 and 7-2 are constituted by the third hydraulic cylinder built in the upper reinforcing roller bearing housing 4-1 and the third piston rod. In addition, the front end of the third piston rod of the third hydraulic cylinder is formed in such a manner that it can be connected to the upper work roll chock 3-1 by a roll axis direction moving operation such as roll exchange. The assigner of the roller balance force.

藉此，與增彎曲裝置之行程無關而可將輥開度加大，同時在必須進行板厚約100mm以下之板冠高控制時等，亦可賦予強力之減彎力。藉此，從大於800mm之板厚的軋延材之軋延，到100mm厚以下伴隨著厚板軋延中精密之板冠高控制之軋延，可藉由1台軋延機1來應付。Thereby, regardless of the stroke of the bending device, the roll opening degree can be increased, and when it is necessary to perform the plate height control with a plate thickness of about 100 mm or less, a strong bending force can be imparted. Thereby, the rolling of the rolled material from a plate thickness of more than 800 mm to the rolling of 100 mm thick or less with the precision of the crown height control in the thick plate rolling can be handled by one rolling mill 1.

以下，詳述前述連接部之結構之一例。該例到底是實施之一形態，並非限制本發明之具體結構。Hereinafter, an example of the configuration of the above-described connecting portion will be described in detail. This example is an embodiment and does not limit the specific structure of the present invention.

第2圖係上作業輥1-1與上作業輥軸承座3-1之簡圖，圖中，跟前係構成驅動側，內部係構成作業側。於上作業輥1-1之輥軸承座3-1之上面左右，構成上減彎曲裝置7-1、7-2的第3油壓缸之第3活塞桿之前端嵌合的截面倒T字狀之溝31係形成作為第2卡合部，且該溝31係朝驅動側開口，同時形成至軸承座之中心附近。Fig. 2 is a schematic view of the work roll 1-1 and the upper work roll chock 3-1. In the figure, the front side constitutes the drive side, and the internal part constitutes the work side. On the upper left and right sides of the roller bearing housing 3-1 of the upper work roll 1-1, the cross-section of the third piston rod of the third hydraulic cylinder constituting the upper reduction bending device 7-1, 7-2 is inverted. The groove 31 is formed as a second engaging portion, and the groove 31 is opened toward the driving side and formed near the center of the bearing housing.

在朝軋延機1***輥組時，係於使用軌條等自操作側將業已於兩端部安裝輥軸承座之作業輥搬入軋延機1之外罩內之預定位置時，將屬於減彎曲裝置的油壓缸之活塞桿引進上補強輥軸承座4-1內，並作成不會構成搬入之阻礙。When the roll set is inserted into the rolling mill 1 , the work roll which has been mounted on the both ends of the roll chock is carried into a predetermined position in the outer cover of the rolling mill 1 from the operation side using a rail or the like, The piston rod of the hydraulic cylinder of the device is introduced into the upper reinforced roller bearing housing 4-1, and is formed so as not to hinder the loading.

接著，在上作業輥軸承座3-1之溝31位於應卡合的第3油壓缸之第3活塞桿之擴大部(第1卡合部)之正前方時，使該活塞桿下降至預定位置。又，如第3C圖所示，維持溝31之內面與第3活塞桿之外面不會接觸之位置關係，並使第3活塞桿之擴大部自驅動側之溝開口部進入溝31內。藉此，實現第1卡合部與第2卡合部之卡合。Next, when the groove 31 of the upper work roll chock 3-1 is located directly in front of the enlarged portion (first engaging portion) of the third piston rod of the third hydraulic cylinder to be engaged, The piston rod is lowered to a predetermined position. Further, as shown in FIG. 3C, the positional relationship between the inner surface of the groove 31 and the outer surface of the third piston rod is maintained, and the enlarged portion of the third piston rod enters the groove 31 from the groove opening portion on the driving side. Thereby, the engagement between the first engagement portion and the second engagement portion is achieved.

第3A圖係顯示形成於上減彎曲裝置7-1、7-2之第3油壓缸之第3活塞桿前端的擴大部與溝31卡合之狀態圖。具體而言，第3A圖係顯示藉由第3油壓缸之拉引動作，使第3活塞桿朝上方提升，並抵接於上作業輥軸承座3-1之溝31上面而賦予上升力f_RB 之狀態。Fig. 3A is a view showing a state in which the enlarged portion of the third piston rod of the third hydraulic cylinder formed in the upper and lower bending devices 7-1 and 7-2 is engaged with the groove 31. Specifically, the third drawing shows that the third piston rod is lifted upward by the pulling operation of the third hydraulic cylinder, and abuts against the groove 31 of the upper work roll chock 3-1 to give a lifting force. f Status of _RB .

上升力f_RB 係作成輥平衡力而作用。故，即使未借助配備在一對第1凸塊5-1、5-2的上增彎曲裝置6-1、6-2之第1活塞桿之行程，亦可使上作業輥1-1與上補強輥2-1一同地上升。故，可取得大的輥開度而並非是不可行。The lifting force f _RB acts as a roller balancing force. Therefore, the upper work roll 1-1 can be made even without the stroke of the first piston rod provided on the upper bending means 6-1, 6-2 of the pair of first projections 5-1, 5-2. The upper reinforcing roller 2-1 rises together. Therefore, it is not feasible to obtain a large roll opening.

第3B圖係顯示在薄板熱軋軋延之精軋延等，進行板冠高‧形狀控制時賦予上減彎力之狀態圖。Fig. 3B is a view showing a state in which the upper bending force is applied when the crown height and the shape control are performed in the hot rolling and rolling of the thin plate.

即，藉由上減彎曲裝置7-1、7-2之第3油壓缸，其第3活塞桿會朝下方伸長，並賦予上作業輥軸承座3-1之溝31之底面推壓力f_DC ，藉此，賦予減彎力。That is, by the third hydraulic cylinder of the upper and lower bending devices 7-1, 7-2, the third piston rod is extended downward, and the bottom pressure of the groove 31 of the upper work roll chock 3-1 is applied. _DC , thereby giving the bending force.

第3C圖係顯示如業已說明般，在輥交換時等，使溝31與第3活塞桿卡合時或解除該卡合時之非接觸狀態圖。Fig. 3C is a view showing a non-contact state when the groove 31 is engaged with the third piston rod or when the engagement is released, as in the case of roller exchange.

於前述例中，將溝31形成於上作業輥軸承座3-1，並將卡合於溝31之擴大部形成於上減彎曲裝置7-1、7-2，然而，本發明並不限於該態樣，舉例言之，亦可將溝31形成於上減彎曲裝置7-1、7-2，並將卡合於溝31之擴大部形成於上作業輥軸承座3-1。In the foregoing example, the groove 31 is formed in the upper work roll chock 3-1, and the enlarged portion that is engaged with the groove 31 is formed in the upper and lower bending devices 7-1, 7-2. However, the present invention is not limited thereto. In this aspect, for example, the groove 31 may be formed on the upper and lower bending devices 7-1, 7-2, and the enlarged portion engaged with the groove 31 may be formed on the upper side. Roller bearing housing 3-1.

另，於有關本實施形態之軋延機1中，賦予至下作業輥1-2之軀體部之軋延方向力係藉由下作業輥軸承座3-2與設置於出口側的凸塊(5-1或5-2)之接觸面來負擔。故，第1圖所示有關本實施形態之軋延機1係將下作業輥軸承座3-2夾入一對第1凸塊5-1、5-2之部分之高度加大。Further, in the rolling mill 1 according to the present embodiment, the rolling direction force applied to the body portion of the lower work roll 1-2 is supported by the lower work roll chock 3-2 and the bump provided on the outlet side ( The contact surface of 5-1 or 5-2) is to be used. Therefore, in the rolling mill 1 of the present embodiment shown in Fig. 1, the height of the portion where the lower work roll chock 3-2 is sandwiched between the pair of first projections 5-1 and 5-2 is increased.

又，輥開度主要係藉由使上作業輥軸承座3-1朝上下移動而調整，因此，下作業輥軸承座3-2之上下移動量少。故，下作業輥1-2之姿勢不會隨著輥開度變大而變得不安定。Further, since the roller opening degree is mainly adjusted by moving the upper work roll chock 3-1 upward and downward, the amount of movement of the lower work roll chock 3-2 is small. Therefore, the posture of the lower work roll 1-2 does not become unstable as the roll opening degree becomes larger.

第4圖係顯示上下增彎曲裝置6-1至6-4之配置例之平面截面圖。即，一對第1凸塊5-1、5-2之通道線高度中的截面圖。Fig. 4 is a plan sectional view showing an arrangement example of the upper and lower bending devices 6-1 to 6-4. That is, a cross-sectional view of the channel line heights of the pair of first bumps 5-1 and 5-2.

於有關本實施形態之軋延機1中，宜將上下增彎曲裝置6-1至6-4配備成在一對第1凸塊5-1、5-2之平面截面圖上相互錯開。舉例言之，如第4圖所示，宜將上增彎曲裝置6-1、6-2與下增彎曲裝置6-3、6-4配備成構成朝作業輥1-2之軸方向位移之位置關係。若依此作成，則於一對第1凸塊5-1、5-2內之各自中，上下增彎曲裝置6-1至6-4不會相互干涉。In the rolling mill 1 according to the present embodiment, it is preferable that the upper and lower sharpening devices 6-1 to 6-4 are arranged to be shifted from each other in a plan sectional view of the pair of first projections 5-1 and 5-2. For example, as shown in Fig. 4, it is preferable to equip the upper bending device 6-1, 6-2 and the lower bending device 6-3, 6-4 to constitute an axial displacement toward the work roll 1-2. Positional relationship. According to this configuration, the upper and lower sharpening devices 6-1 to 6-4 do not interfere with each other in each of the pair of first bumps 5-1 and 5-2.

即，分別內建於第1凸塊5-1、5-2之第1油壓缸與第2油壓缸不會相互干涉。故，可將第1油壓缸及第2油壓缸之容量加大，且將第1活塞桿及第2活塞桿之行程加大而將增彎曲操作量加大。In other words, the first hydraulic cylinder and the second hydraulic cylinder built in the first projections 5-1 and 5-2 do not interfere with each other. Therefore, the capacity of the first hydraulic cylinder and the second hydraulic cylinder can be increased, and the stroke of the first piston rod and the second piston rod can be increased to increase the amount of bending operation.

另，於第4圖中，藉由入口側、出口側各2支之第2油壓缸，構成下增彎曲裝置6-3、6-4。然而，將第2油壓缸作成各1支，並於下作業輥1-2之軸方向配置在不同之位置，且不會與第1油壓缸干涉，藉此，亦可獲得相同之作用效果。Further, in Fig. 4, the lower bending devices 6-3 and 6-4 are constituted by the second hydraulic cylinders of the two sides on the inlet side and the outlet side. However, the second hydraulic cylinder is made Each of them is disposed at a different position in the axial direction of the lower work roll 1-2, and does not interfere with the first hydraulic cylinder, whereby the same operational effects can be obtained.

第5圖亦為顯示上下增彎曲裝置6-1至6-4之配置例之平面截面圖。即，一對第1凸塊5-1、5-2之通道線高度中的截面圖。如該圖所示，亦可將第1油壓缸與第2油壓缸作成朝軋延方向位移之位置關係。於此種配置中，第1油壓缸與第2油壓缸亦不會相互干涉。故，可將第1油壓缸及第2油壓缸之容量加大，且將第1活塞桿及第2活塞桿之行程加大而將彎曲操作量加大。Fig. 5 is also a plan sectional view showing an arrangement example of the upper and lower bending devices 6-1 to 6-4. That is, a cross-sectional view of the channel line heights of the pair of first bumps 5-1 and 5-2. As shown in the figure, the first hydraulic cylinder and the second hydraulic cylinder may be placed in a positional relationship in the rolling direction. In this arrangement, the first hydraulic cylinder and the second hydraulic cylinder do not interfere with each other. Therefore, the capacity of the first hydraulic cylinder and the second hydraulic cylinder can be increased, and the stroke of the first piston rod and the second piston rod can be increased to increase the amount of bending operation.

到目前為止，主要係自獲得屬於解決課題之一的大的輥開度之觀點，說明有關本實施形態之軋延機1之結構。Up to now, the structure of the rolling mill 1 according to the present embodiment has been mainly described from the viewpoint of obtaining a large roll opening degree which is one of the problems to be solved.

其次，說明若藉由該結構，則亦可輕易地達成屬於另一解決課題的強力輥彎力之賦予者。Next, it is explained that with this configuration, the assigner of the strong roll bending force which is another problem to be solved can be easily achieved.

第12、13圖皆為有關習知技術之軋延機1A、1B，且任一者之軋延機皆可大幅地取得輥開度。The figures 12 and 13 are both the rolling mills 1A and 1B of the prior art, and the rolling mills of either of them can obtain the roll opening greatly.

然而，於該等軋延機1A、1B中，並無法賦予強力之輥彎力。此係由於屬於將上增彎曲裝置6-1、6-2裝入自上補強輥軸承座4-1朝下方突出的臂部之結構，因此，無法配備大容量及大行程之上增彎曲裝置6-1、6-2之故。又，由於該等軋延機1A、1B係自上補強輥軸承座4-1將臂部伸出，因此，即使作成欲設置上減彎曲裝置7-1、7-2，設置空間亦會靠近輥之軸心。故，由於會與上補強輥2-1之軸承干涉，因此，無法配備大容量‧大行程之上減彎曲裝置7-1、7-2。However, in these rolling mills 1A and 1B, it is not possible to impart a strong roll bending force. This is because the upper bending device 6-1, 6-2 is incorporated into the arm portion that protrudes downward from the upper reinforcing roller bearing housing 4-1, and therefore, it is not possible to provide a large-capacity and large-stroke upper bending device. 6-1, 6-2. Further, since the rolling mills 1A and 1B extend the arm portion from the upper reinforcing roller bearing housing 4-1, even if the upper and lower bending devices 7-1 and 7-2 are to be provided, the installation space is close. The axis of the roller. Therefore, since the bearing interferes with the bearing of the upper reinforcing roller 2-1, the large-capacity ‧ large stroke upper bending reduction device 7-1, 7-2 cannot be provided.

另一方面，如第1圖所示，於有關本實施形態之軋延機 1中，可將大容量‧大行程之上增彎曲裝置6-1、6-2，配備在自軋延機1之外罩9朝其內側方向突出的一對第1凸塊5-1、5-2。On the other hand, as shown in Fig. 1, the rolling mill relating to the present embodiment In the first aspect, the large-capacity ‧ large stroke upper bending device 6-1, 6-2 can be provided in a pair of first bumps 5-1, 5 protruding from the outer cover 9 toward the inner side of the rolling mill 1 -2.

又，有關本實施形態之軋延機1並未在上補強輥軸承座4-1具有如第12、13圖所示之軋延機1A、1B般的臂部。故，可將大容量‧大行程之上減彎曲裝置7-1、7-2，配備在上補強輥軸承座4-1不會與上補強輥2-1之軸承干涉之位置，藉此，可賦予上作業輥1-1大的減彎力。Further, the rolling mill 1 of the present embodiment does not have the arm portions like the rolling mills 1A and 1B shown in Figs. 12 and 13 in the upper reinforcing roller bearing housing 4-1. Therefore, the large-capacity ‧ large stroke upper bending reduction device 7-1, 7-2 can be provided at a position where the upper reinforcing roller bearing housing 4-1 does not interfere with the bearing of the upper reinforcing roller 2-1, thereby The upper work roll 1-1 can be given a large bending force.

即，若藉由作成以下結構的有關本實施形態之軋延機1，即：一對第1凸塊5-1、5-2之位置，以及藉由上作業輥軸承座3-1與外罩窗12之接觸面，負擔被賦予至上作業輥1-1之軀體部之軋延方向力者，則可取得大的輥開度，同時亦可賦予強力之輥彎力。That is, the rolling mill 1 according to the present embodiment having the following configuration, that is, the position of the pair of first projections 5-1 and 5-2, and the upper work roll chock 3-1 and the outer cover are formed. When the contact surface of the window 12 is applied to the rolling direction force applied to the body portion of the upper work roll 1-1, a large roll opening degree can be obtained, and a strong roll bending force can be imparted.

又，無需在每次作業輥之重組作業時即裝卸增彎曲裝置之油壓配管。故，各個增彎曲裝置6-1至6-4可透過固定油壓配管，與各個油壓控制閥連接，且可採用高響應油壓控制用之伺服閥。故，可作成響應性高之增彎曲裝置。Further, it is not necessary to attach or detach the hydraulic piping of the bending device every time the reworking work of the work rolls is performed. Therefore, each of the bending-increasing devices 6-1 to 6-4 can be connected to each of the hydraulic control valves through the fixed hydraulic piping, and a servo valve for high-response hydraulic control can be employed. Therefore, it is possible to create a bending device with high responsiveness.

第6圖係顯示有關本實施形態之變形例的軋延機1’之側視圖。第6圖所示之軋延機1’係上輥系統屬於與第1圖相同之構造，然而，下輥系統係構成不同之構造。於第1圖所示之軋延機1中，將賦予下作業輥1-2減彎力之下減彎曲裝置7-3、7-4配備在下補強輥軸承座4-2。相對於此，第6圖所示之軋延機1’係將下減彎曲裝置7-3、7-4配備在位於一對第1凸塊5-1、5-2之下方的一對第2凸塊5-3、5-4。Fig. 6 is a side view showing a rolling mill 1' according to a modification of the embodiment. The rolling mill 1'-up roll system shown in Fig. 6 has the same configuration as that of Fig. 1, however, the lower roll system constitutes a different configuration. In the rolling mill 1 shown in Fig. 1, the lower bending means 7-3, 7-4 for imparting the lower bending force to the lower work rolls 1-2 are provided in the lower reinforcing roller chocks 4-2. On the other hand, the rolling mill 1' shown in Fig. 6 is provided with the lower bending device 7-3, 7-4 in a pair below the pair of first bumps 5-1, 5-2. 2 bumps 5-3, 5-4.

不過，若如第1圖所示之軋延機1般將下減彎曲裝置7-3、7-4配備在下補強輥軸承座4-2，則於重組下補強輥2-2時，必須裝卸減彎曲裝置之油壓配管。即，於裝卸時微小之異物混入油壓配管內之可能性高。However, if the lower bending device 7-3, 7-4 is provided in the lower reinforcing roller bearing housing 4-2 as in the rolling mill shown in Fig. 1, the reinforcing roller 2-2 must be loaded and unloaded when the reinforcing roller 2-2 is reassembled. Reduce the hydraulic piping of the bending device. In other words, it is highly likely that a small foreign matter will be mixed into the hydraulic piping during loading and unloading.

故，一般而言，欲採用高響應油壓控制用之伺服閥會變得困難，且有時亦必須局部地採用撓性配管。Therefore, in general, it is difficult to use a servo valve for high-response hydraulic pressure control, and it is sometimes necessary to use a flexible pipe locally.

故，相較於採用固定配管或伺服閥者，不得不降低輥彎曲裝置之響應性。Therefore, the responsiveness of the roll bending device has to be reduced as compared with those using a fixed pipe or a servo valve.

相對於此，若藉由第6圖所示之軋延機1’，則可解決在重組下補強輥2-2時所產生的前述問題。此係由於配備在一對第2凸塊5-3、5-4的下減彎曲裝置7-3、7-4之油壓配管可採用高響應油壓控制用之伺服閥，且無需使用撓性配管即可完成之故。故，下補強輥2-2之重組會變得容易，同時可作成響應性高之輥彎曲裝置。On the other hand, according to the rolling mill 1' shown in Fig. 6, the above-mentioned problems occurring when the reinforcing roller 2-2 is recombined can be solved. This is because the hydraulic pressure piping for the lower-reduction bending devices 7-3 and 7-4 provided in the pair of second projections 5-3 and 5-4 can be used for the servo valve for high-response hydraulic pressure control, and it is not necessary to use the sewing valve. Sex piping can be completed. Therefore, the reorganization of the lower reinforcing roller 2-2 becomes easy, and at the same time, a responsive bending device can be produced.

其次，說明有關本實施形態之軋延方法。Next, the rolling method of the present embodiment will be described.

如第1、6圖所示，在將上減彎曲裝置7-1、7-2配備在上補強輥軸承座4-1時，於重組上補強輥2-1時，必須裝卸上減彎曲裝置7-1、7-2之油壓配管，且於裝卸時微小之異物混入油壓配管內之可能性高。As shown in the first and sixth figures, when the upper bending device 7-1, 7-2 is provided on the upper reinforcing roller bearing block 4-1, when the reinforcing roller 2-1 is reassembled, the upper bending device must be attached and detached. In the hydraulic piping of 7-1 and 7-2, it is highly likely that small foreign matter will be mixed into the hydraulic piping during loading and unloading.

故，一般而言，欲採用高響應油壓控制用之伺服閥會變得較為困難。又，為了使配管裝卸容易，必須透過如撓性配管等般柔軟結構且自由裝卸之油壓配管，與各個油壓控制閥連接。在採用撓性配管等柔軟結構且自由裝卸之油壓配管時，由於屬於柔軟結構，因此，有時亦會吸收或緩和油壓之變動。Therefore, in general, it is more difficult to use a servo valve for high-response hydraulic control. Moreover, in order to facilitate the attachment and detachment of the piping, it is necessary to connect the hydraulic pressure control valves to the respective hydraulic control valves through a hydraulic piping that is flexible and detachable, such as a flexible pipe. When a hydraulic pipe that is soft and detachable, such as a flexible pipe, is used, since it is a soft structure, it is sometimes absorbed or slowed down. And changes in oil pressure.

故，在像是將上減彎曲裝置7-1、7-2配備在上補強輥軸承座4-1時，相較於採用固定配管或伺服閥者，不得不降低輥彎曲裝置之響應性。Therefore, when the upper bending device 7-1, 7-2 is provided in the upper reinforcing roller bearing block 4-1, the responsiveness of the roller bending device has to be reduced as compared with the case where the fixed pipe or the servo valve is used.

不過，減彎力在未負載軋延荷重之空載時並無法賦予。故，在應用減彎力時，必須在從取得輥平衡力之空載狀態起至開始軋延前迅速地設定減彎力，更於結束軋延時迅速地回到輥平衡狀態。However, the bending force cannot be imparted when the unloaded rolling load is unloaded. Therefore, when applying the bending force, it is necessary to quickly set the bending force from the idle state in which the roller balance force is obtained to the start of the rolling, and to return to the roller balance state more quickly than the end rolling delay.

故，若藉由利用響應性差之減彎曲裝置的控制來實施輥彎力之變更，則於軋延材之前末端中，無法賦予預定之減彎力，且有形狀不佳部變長之可能性。Therefore, if the roll bending force is changed by the control of the damper-reducing bending device, the predetermined bending force cannot be applied to the end of the rolled material, and the shape of the shape is not long. .

有關本實施形態之軋延方法係解決前述問題。The rolling method of the present embodiment solves the aforementioned problems.

即，一種軋延方法，係使用將上減彎曲裝置7-1、7-2配備在上補強輥軸承座4-1的有關本實施形態之軋延機1、1’者，又，解決該軋延機1、1’中可能產生的前述問題者。That is, a rolling method is to use the rolling mills 1 and 1' of the present embodiment in which the upper and lower bending devices 7-1 and 7-2 are provided in the upper reinforcing roller bearing housing 4-1, and The aforementioned problems that may occur in the rolling mill 1, 1 '.

如前述，於將上減彎曲裝置7-1、7-2配備在上補強輥軸承座4-1之軋延機1、1’中，有時減彎曲裝置之響應性會變差。As described above, in the rolling mills 1, 1' in which the upper bending reduction devices 7-1 and 7-2 are provided in the upper reinforcing roller bearing housing 4-1, the responsiveness of the bending reduction device may be deteriorated.

然而，於有關本實施形態之軋延機1、1’中，由於屬於將上增彎曲裝置6-1、6-2配備在自外罩9朝其內側方向突出的一對第1凸塊5-1、5-2之結構，因此，可作成大容量‧大行程之上增彎曲裝置。However, in the rolling mills 1 and 1' according to the present embodiment, the upper and lower bending devices 6-1 and 6-2 are provided with a pair of first projections 5 projecting from the outer cover 9 toward the inner side thereof. 1, 5-2 structure, therefore, can be made into a large capacity ‧ large stroke above the bending device.

又，由於無需在每次輥重組作業時即裝卸增彎曲裝置之油壓配管，因此，可採用固定油壓配管或伺服閥，藉此，可作成響應性高之增彎曲裝置。Further, since it is not necessary to attach or detach the hydraulic piping of the bending and bending device every time the roller recombination operation is performed, a fixed hydraulic pressure pipe or a servo valve can be used, whereby a bending device having high responsiveness can be produced.

有關本實施形態之軋延方法係於板冠高‧形狀控制之目的下使減彎力作用在作業輥時，使用響應性高之增彎曲裝置，進行開始軋延時及結束軋延時的輥彎力之變更，並補償減彎曲裝置之響應性。The rolling method according to the present embodiment is based on the purpose of controlling the crown height and the shape control, and when the bending force is applied to the work roll, the roll bending force for starting the rolling delay and ending the rolling delay is performed using the responsive bending device. The change is made and the responsiveness of the bending reduction device is compensated.

第7圖係顯示有關本實施形態的軋延方法之操作流程之一例之圖。即，顯示響應性高之增彎曲裝置與響應性稍微比其低之減彎曲裝置之操作流程圖。Fig. 7 is a view showing an example of the operational flow of the rolling method of the present embodiment. That is, an operation flowchart of the buckling device with a high responsiveness and a lower bending device with a slightly higher responsiveness is displayed.

又，第8圖係顯示該軋延方法中對一支軋延材之輥彎力等之時間序列變化。第8圖係自上方起，顯示軋延荷重、增彎曲裝置之輸出、減彎曲裝置之輸出、屬於該等之合力的作業輥彎力之時間序列變化。以下，根據第7、8圖來說明。Further, Fig. 8 is a view showing a time series change of the roll bending force or the like of one rolled product in the rolling method. Fig. 8 is a time series change from the top, showing the rolling load, the output of the bending device, the output of the bending reduction device, and the bending force of the work rolls belonging to the resultant force. Hereinafter, it will be described based on the seventh and eighth figures.

首先，於開始軋延前，運算、求取對應於接著進行軋延之軋延材的軋延中作業輥彎力之設定值F_R 。在此，作成F_R 係運算為負值，即，減彎力。另，於本實施形態中，將增彎力(增方向(放開輥R之方向)之力)作成正值，將減彎力(減方向(壓住輥之方向)之力)作成負值。First, before the start of rolling, the set value F _R of the work roll bending force in the rolling of the rolled product corresponding to the rolling is calculated and obtained. Here, the F _R system is calculated to have a negative value, that is, a bending force. Further, in the present embodiment, the bending force (the force in the direction (the direction in which the roller R is released) is made a positive value, and the bending force (the force in the direction of the reduction (the direction in which the roller is pressed) is made a negative value). .

(第1步驟)(Step 1)

開始軋延前會使增彎力與減彎力雙方作用，並作成合力而使相當於輥平衡力F_B 之增加側之輥彎力作用在作業輥軸承座。Before the start of rolling, both the bending force and the bending force are applied, and a combined force is applied to cause the roller bending force corresponding to the increasing side of the roller balance force F _B to act on the work roll chock.

即，於軋延前之空載時，將增彎曲裝置輸出作成I_B (>0)，將減彎曲裝置輸出作成D_B (<0)，且I_B +D_B 係作成輥平衡力F_B (>0)而作用。That is, at the idling before rolling, the output of the bending device is made I _B (>0), the output of the bending device is D _B (<0), and the output of I _B +D _B is the roller balancing force F _B (>0) and work.

輥平衡力F_B 係訂定為於空轉狀態下藉由電動機驅動的作業輥與構成從動的補強輥亦不會滑移之力。此時，D_B 可藉由減彎曲裝置之致動器不會脫離作業輥軸承座的最小油壓來設定。The roller balance force F _B is defined as a force that does not slip by the work rolls driven by the motor and the driven reinforcing rolls in the idling state. At this time, D _B can be set by the actuator of the bending reduction device not being separated from the minimum oil pressure of the work roll chock.

(第2步驟)(Step 2)

又，於開始軋延前的某個時間點(時間軸上之a點)中，將用以使軋延中作業輥彎力F_R 作用充分的預定之軋延中減彎曲裝置輸出D_S ，藉由D_S =F_R -I_R 來運算。又，為了使輥平衡力F_B 構成一定，同時地輸出D_S 及I_S 。在此，I_R 係軋延中的增彎曲裝置輸出，為了使D_S 之絕對值不會變得過大，預先決定接近可控制的最小值之值。I_S 係構成I_S +D_S =F_R 的增彎曲裝置輸出。故，於設定時間點中，作成合力的作業輥彎力係於維持F_B 之狀態下實質上不會變化。Further, at a certain point in time before starting the rolling (a point on the time axis), the predetermined rolling delay reducing device output D _{S is} used to make the work roll bending force F _R in the rolling process sufficiently Operated by D _S =F _R -I _R . Further, in order to make the roller balance force F _B constant, D _S and I _{S are} simultaneously output. Here, the output of the sharpening device in the rolling of the I _R system, in order to prevent the absolute value of D _S from becoming excessive, determines the value close to the controllable minimum value in advance. The I _S system constitutes a sharpening device output of I _S + D _S = F _R . Therefore, at the set time point, the work roll bending force that creates the resultant force does not substantially change while maintaining F _B .

(第3步驟)(Step 3)

其次，於開始軋延時，減彎力係保持一定值，並使增彎力變化(降低)，且作成合力而使預定之軋延中作業輥彎力F_R 作用在作業輥軸承座。Next, at the start of the rolling delay, the bending force is maintained at a constant value, and the bending force is changed (decreased), and a resultant force is applied to cause the work roll bending force F _R in the predetermined rolling to act on the work roll chock.

即，於開始軋延時(時間軸上之b點)，將增彎曲裝置輸出自I_S 變更成I_R 。藉由依此作成，響應慢的減彎曲裝置輸出係於維持D_S 之狀態下，藉由響應快的增彎曲裝置之控制，將作成合力的作業輥彎力迅速地自輥平衡力F_B (>0)切換成軋延作業中輥彎力F_R (<0)。That is, at the start of the rolling delay (point b on the time axis), the output of the bending device is changed from I _S to I _R . By doing so, the output of the slow-reducing bending device is maintained in the state of maintaining D _S , and the bending force of the working roller that makes the resultant force is quickly from the roller balancing force F _B (> by the control of the fast-increasing bending device). 0) Switch to the roll bending force F _R (<0) in the rolling operation.

另，所謂開始軋延時(b)係指開始軋延之時間點，且其檢測係例如可藉由依下述作成的方法來決定，即：藉由軋延機1、1’之軋延荷重測定用荷重元所檢測的荷重大於預料軋延荷重之30%時者。In addition, the start rolling delay (b) refers to the time point at which the rolling is started, and the detection thereof can be determined, for example, by the following method, that is, by measuring the rolling load of the rolling mill 1, 1' The load detected by the load cell is significantly larger than expected. When the rolling load is 30%.

(第4步驟)(Step 4)

又，維持該軋延中輥彎力而進行金屬板之軋延。Further, the rolling of the metal sheet is maintained while maintaining the roll bending force in the rolling.

(第5步驟)(Step 5)

於結束軋延時，為了使輥彎力回到開始軋延前之狀態，作成合力而使相當於輥平衡力F_B 之輥彎力作用在作業輥軸承座，並結束軋延。At the end of the rolling delay, in order to return the roll bending force to the state before the start of rolling, a roll force corresponding to the roll balance force F _B is applied to the work roll chock to form a resultant force, and the rolling is finished.

即，於結束軋延時(時間軸上之c點)，減彎曲裝置輸出係於維持D_S 之狀態下，使響應快的增彎曲裝置輸出自I_R 變化成I_S 。藉由依此作成，可將作成合力的作業輥彎力迅速地自軋延中作業輥彎力(F_R (<0))切換成輥平衡力(F_S (>0))。That is, at the end of the rolling delay (point c on the time axis), the output of the bending reduction device is maintained in D _S , and the output of the bending device that responds quickly changes from I _R to I _S . By doing so, the work roll bending force that creates the resultant force can be quickly switched from the rolling work roll bending force (F _R (<0)) to the roll balance force (F _S (>0)).

另，所謂結束軋延時(c)係指結束軋延時間點，且其檢測係例如可藉由依下述作成的方法來決定，即：藉由軋延機1、1’之軋延荷重測定用荷重元所檢測的荷重小於實際軋延荷重平均值之50%之時間點者。In addition, the end rolling delay (c) refers to the end of the rolling time point, and the detection system can be determined, for example, by the following method, that is, by measuring the rolling load of the rolling mill 1, 1' The time when the load detected by the load cell is less than 50% of the average value of the actual rolling load.

(第6步驟)(Step 6)

又，將自結束軋延時(c)起經過例如1至3秒之時間點作成完成作業時間點(時間軸上之d點)，且於該時間點中，將增彎曲裝置輸出變更成I_B ，將減彎曲裝置輸出變更成D_B 。於該變更中，作成合力的作業輥彎力亦大致維持為輥平衡力F_B 。Further, the completion time (point d on the time axis) is completed at a time point of, for example, 1 to 3 seconds from the end of the rolling delay (c), and at this time point, the output of the bending device is changed to I _{B .} , change the output of the bending reduction device to D _B . In this modification, the work roll bending force that creates the resultant force is also substantially maintained as the roll balance force F _B .

如第7、8圖所示，於有關本實施形態之軋延方法中，使用響應性高之增彎曲裝置，進行開始軋延時及結束軋延時的輥彎力之變更。故，即使是在不得不配備響應性較低之減彎曲裝置時，響應性高之增彎曲裝置亦可將其加以補償，因此，可賦予高響應且強力之板冠高‧形狀控制機能。As shown in Figs. 7 and 8, in the rolling method according to the present embodiment, the bending bending force for starting the rolling delay and ending the rolling delay is changed by using the oscillating device having high responsiveness. Therefore, even if you have to be equipped with low responsiveness When the bending device is reduced, the oscillating device having high responsiveness can also compensate for it, thereby providing a high response and a strong crown height and shape control function.

再者，即使是在軋延中軋延力藉由各種因素(干擾)而變化時，亦可藉由高響應之增彎曲裝置迅速地控制，以維持最適當之作業輥彎力。Further, even if the rolling force is varied by various factors (interference) during rolling, it can be quickly controlled by the high-response bending device to maintain the optimum working roll bending force.

即，若藉由有關本實施形態之軋延方法，則即使對於軋延材入口側板厚或軋延材溫度等在軋延中變動的干擾，亦可精心製成良好之板冠高‧形狀。藉此，可大幅地改善製品品質及良率。In other words, according to the rolling method of the present embodiment, it is possible to carefully produce a good crown height and shape even if the rolling stock inlet side thickness or the rolled material temperature is disturbed during rolling. Thereby, the quality and yield of the product can be greatly improved.

第9圖係顯示減彎曲裝置之響應性極低時(特別是具有當反力消失時壓力會下降之油壓特性時)的輥彎力等之時間序列變化圖。與第8圖相同，依據第7圖所示之增彎曲裝置與減彎曲裝置之操作流程，顯示伴隨著對一支軋延材之軋延操作的輥彎力等之時間序列變化。即，相較於第7、8圖之情形，顯示減彎曲裝置之響應速度慢之情形之例子。Fig. 9 is a time-series change diagram showing the roll bending force and the like when the responsiveness of the bending reduction device is extremely low (particularly, when the pressure is lowered when the reaction force disappears). Similarly to Fig. 8, according to the operation flow of the bending device and the bending device shown in Fig. 7, the time series change accompanying the rolling force and the like for the rolling operation of one rolled product is shown. That is, an example in which the response speed of the bending reduction device is slow is shown as compared with the case of Figs.

於時間點b及c中，由於響應性高之增彎曲裝置之輸出急遽地變化，因此，響應性差之減彎曲裝置之輸出會變動。其結果，作成合力的作業輥彎力係構成於時間點b到達F_R 者會延遲，且於時間點c到達F_B 者會延遲。第10圖所示之軋延方法係解決該問題。At the time points b and c, since the output of the harbing device with high responsiveness changes abruptly, the output of the damper device with poor responsiveness fluctuates. As a result, the work roll bending force that creates the resultant force is delayed when the time point b reaches F _R , and is delayed when the time point c reaches F _B . The rolling method shown in Fig. 10 solves this problem.

第10圖係顯示具有響應性高之增彎曲裝置及響應性低之減彎曲裝置時的操作流程圖。又，第11圖係顯示該軋延方法中對一支軋延材之輥彎力等之時間序列變化。第11圖係自上方起，顯示軋延荷重、增彎曲裝置之輸出、減彎曲裝置之輸出、屬於該等之合力的作業輥彎力之時間序列變化。以下，根據第10、11圖來說明。Fig. 10 is a flow chart showing the operation of the bending device having high responsiveness and the bending device having low responsiveness. Further, Fig. 11 is a view showing a time series change of the roll bending force or the like of one rolled product in the rolling method. Figure 11 shows the rolling load, the output of the bending device, and the bending from the top. The output of the device, the time series of the bending force of the work rolls belonging to the resultant force. Hereinafter, it will be described based on the figures 10 and 11.

於第10圖所示之軋延方法中，藉由設置於減彎曲裝置之荷重元，常時測定減彎力，或是與減彎曲裝置接連的油壓配管內之油壓，並根據其測定值，動態控制增彎曲裝置。即，軋延前後係按照減彎力或減彎曲裝置之油壓，控制增彎曲裝置之輸出，使作業輥彎力構成輥平衡力F_B 。另，除此以外之控制係與第7圖所示之軋延方法相同，以下具體地說明。In the rolling method shown in FIG. 10, the bending force is constantly measured by the load cell provided in the bending reduction device, or the oil pressure in the hydraulic pipe connected to the bending reduction device is measured based on the measured value. Dynamic control of the bending device. That is, before and after the rolling, the output of the bending device is controlled in accordance with the bending force or the oil pressure of the bending device, so that the work roll bending force constitutes the roller balancing force F _B . The control system other than this is the same as the rolling method shown in Fig. 7, and will be specifically described below.

首先，於開始軋延前，運算、求取對應於接著進行軋延之軋延材的軋延中作業輥彎力之設定值F_R 。First, before the start of rolling, the set value F _R of the work roll bending force in the rolling of the rolled product corresponding to the rolling is calculated and obtained.

(第1步驟)(Step 1)

開始軋延前會使增彎力與減彎力雙方作用，並作成合力而使相當於輥平衡力F_B 之增側之輥彎力作用在作業輥軸承座。Before the start of rolling, both the bending force and the bending force are applied, and a combined force is applied to cause the roller bending force corresponding to the increasing side of the roller balance force F _B to act on the work roll chock.

(第2步驟)(Step 2)

又，於開始軋延前的某個時間點(時間軸上之a點)中，將用以使軋延中作業輥彎力F_R 作用充分的預定之軋延中減彎曲裝置輸出D_S ，藉由D_S =F_R -I_R 來運算，並將減彎力自D_B 變更成D_S 。又，I_S 係藉由I_S +D_S =Fr來決定的增彎曲裝置輸出，並與D_S 同時地輸出。在此，使用藉由時時刻刻地(即，連續地)測定減彎力而獲得的測定值D_M ，控制增彎曲裝置輸出I_S ，使可以微小地變動的輥平衡力F_B 常時構成一定。Further, at a certain point in time before starting the rolling (a point on the time axis), the predetermined rolling delay reducing device output D _{S is} used to make the work roll bending force F _R in the rolling process sufficiently The operation is performed by D _S =F _R -I _R , and the bending force is changed from D _B to D _S . Further, I _S is an output of the bending device determined by I _S + D _S = Fr and is output simultaneously with D _S . Here, by using the measurement value D _M at all times (i.e., continuously) measured bending force obtained by subtraction, the control means outputs by bending I _S, the roll balance force F _B may constantly change minutely to a certain .

(第3步驟)(Step 3)

(第4步驟)(Step 4)

又，維持該軋延中輥彎力而進行軋延。在此，使用藉由時時刻刻地(即，連續地)測定減彎力而獲得的測定值D_M ，控制增彎曲裝置輸出I_R ，使可以微小地變動的輥平衡力F_B 常時構成一定，並與減彎曲裝置輸出D_S 同時地輸出。Further, rolling is performed while maintaining the roll bending force in the rolling. Here, the measured value D _M obtained by measuring the bending force momentarily (that is, continuously) is used to control the bending-increasing device output I _R so that the roller balancing force F _B that can be minutely changed constantly constitutes a constant And output simultaneously with the bending reduction device output D _S .

(第5步驟)(Step 5)

(第6步驟)(Step 6)

又，將自結束軋延時(c)起經過例如1至3秒之時間點作成完成作業時間點(時間軸上之d點)，且於該時間點中，將增彎曲裝置輸出變更成I_B ，將減彎曲裝置輸出變更成D_B 。在此，使用藉由時時刻刻地(即，連續地)測定減彎力而獲得的測定值D_M ，控制增彎曲裝置輸出I_S ，使可以微小地變動的輥平衡力F_B 常時構成一定，並與D_S 同時地輸出。Further, the completion time (point d on the time axis) is completed at a time point of, for example, 1 to 3 seconds from the end of the rolling delay (c), and at this time point, the output of the bending device is changed to I _{B .} , change the output of the bending reduction device to D _B . Here, the measured value D _M obtained by measuring the bending force momentarily (that is, continuously) is used to control the bending-increasing device output I _S so that the roller balance force F _B that can be slightly changed can always be fixed. And output simultaneously with D _S .

藉由利用第10圖所示之軋延方法進行軋延，如第11圖所示，增彎曲裝置係補償減彎曲裝置之輸出之變動，並將作業輥彎力最適當化而可實現高響應之控制。By rolling using the rolling method shown in Fig. 10, as shown in Fig. 11, the bending-increasing device compensates for variations in the output of the bending-reducing device, and optimizes the bending force of the work roll to achieve high response. Control.

又，即使未進行利用軋延中之減彎力之測定或油壓測定來進行的反饋控制，亦可藉由預先預測減彎曲裝置之輸出變動並設定補償其之增彎曲裝置之輸出，而獲得相同之效果。Further, even if the feedback control by the measurement of the bending force or the hydraulic pressure measurement in the rolling is not performed, it is possible to obtain the output of the bending device by predicting the output fluctuation of the bending device in advance and setting the output of the bending device for compensating the bending device. The same effect.

又，在藉由大於前述第1油壓缸之行程的輥開度進行軋延時，會藉由前述第3活塞桿之拉引操作，賦予前述上作業輥1-1之輥平衡力，然後，在藉由未大於前述第1油壓缸之行程的輥開度進行軋延時，藉由採用前述軋延方法(第1步驟至第6步驟)，從板厚大的分塊軋延，到要求正確之板冠高‧形狀控制之熱軋薄板軋延，可藉由同一軋延機來因應。Further, the rolling delay is performed by the roll opening degree larger than the stroke of the first hydraulic cylinder, and the roller balancing force of the upper work roll 1-1 is given by the drawing operation of the third piston rod, and then, The rolling delay is performed by the roll opening degree which is not larger than the stroke of the first hydraulic cylinder, and the rolling process is performed by the rolling method (the first step to the sixth step), and the rolling is performed from the block having a large thickness to the request. The correct plate height and shape control of the hot rolled sheet rolling can be met by the same rolling machine.

本發明亦可依下述來表現。The invention can also be expressed as follows.

(1)一種金屬板材之軋延機，係具有上下一對作業輥及分別支持該等的上下一對補強輥者，又，分別賦予上下作業輥增彎力之油壓缸係配備在朝軋延機外罩之內側突出的凸塊，且作用在下作業輥之軋延方向力係支持於該凸塊，作用在上作業輥之軋延方向力係藉由位於該凸塊之上方的軋延機外罩窗來支持，同時賦予上作業輥減彎力之複動式油壓缸係配備於上補強輥軸承座內，且其活塞前端係與上作業輥軸承座連接，並具有將上補強輥與上作業輥保持為接觸狀態之輥平衡輸出者。(1) A rolling mill for a sheet metal having a pair of upper and lower work rolls and a pair of upper and lower reinforcing rolls respectively supporting the upper and lower work rolls, and a hydraulic cylinder system for imparting a bending force to the upper and lower work rolls respectively Extending inside the extension cover a bump, and the rolling direction force acting on the lower work roll is supported by the bump, and the rolling direction force acting on the upper work roll is supported by the rolling mill cover window located above the bump, and is given The double-acting hydraulic cylinder of the upper work roll bending force is arranged in the upper reinforcing roller bearing seat, and the front end of the piston is connected with the upper work roll bearing seat, and has the upper reinforcing roller and the upper work roll kept in contact with each other. The roller balances the output.

於該軋延機中，賦予上作業輥增彎力之油壓缸與賦予下作業輥增彎力之油壓缸亦可於前述凸塊內配備在平面圖上不同之位置。In the rolling mill, the hydraulic cylinder that imparts the bending force to the upper work roll and the hydraulic cylinder that imparts the bending force to the lower work roll may be disposed in different positions in the plan view in the aforementioned bumps.

於該軋延機中，賦予下作業輥減彎力之油壓缸亦可配備在下補強輥軸承座或位於前述凸塊之下方的第2凸塊。In the rolling mill, the hydraulic cylinder that imparts the bending force to the lower work roll may be provided in the lower reinforcing roller chock or the second bump located below the bump.

於該軋延機中，賦予上作業輥減彎力之油壓缸之活塞前端截面係具備擴大部，且於上作業輥軸承座，形成該擴大部會藉由上作業輥交換時之輥軸方向移動而卡合的凹部。In the rolling mill, the piston front end section of the hydraulic cylinder that imparts the bending force to the upper work roll has an enlarged portion, and is formed on the upper work roll chock to form the roll portion when the enlarged portion is exchanged by the upper work roll. A recess that is moved in the direction of engagement.

(2)一種熱軋軋延方法，係使用前述軋延機而進行厚板軋延者。(2) A hot rolling rolling method in which a thick rolling is performed using the above rolling mill.

(3)一種熱軋軋延方法，係於使用前述軋延機而製造厚板時，在取得大於賦予上作業輥增彎力之油壓缸之行程的輥開度時，藉由賦予上作業輥減彎力之油壓缸之拉引操作，賦予上作業輥之輥平衡力者。(3) A hot rolling and rolling method, in which a thick plate is produced by using the rolling mill, and when a roll opening degree larger than a stroke of a hydraulic cylinder that imparts a bending force to the upper work roll is obtained, The pulling operation of the hydraulic cylinder of the roll bending force gives the roller balancing force of the upper work roll.

(4)一種熱軋軋延方法，係使用前述軋延機而進行薄板熱軋軋延之粗軋延及/或精軋延者。(4) A hot rolling and rolling method for performing rough rolling and/or finish rolling of a sheet hot rolling by using the above rolling mill.

(5)一種金屬板材之軋延方法，係前述熱軋軋延方法，又，於開始軋延前，使增彎力與減彎力雙方作用，並作成合力而使相當於輥平衡力之輥彎力作用在作業輥軸承座，然後，使減彎力變化，以構成預定之軋延中減彎力，並使增彎力變化，使減彎力與增彎力之合力維持輥平衡力，然後，於開始軋延時，持續將減彎力保持前述預定之軋延中減彎力之控制，並使增彎力變化，且構成作成合力的預定之軋延中作業輥彎力作用在作業輥軸承座之狀態，軋延中係維持前述預定之軋延中作業輥彎力而進行軋延，然後，於結束軋延時，使增彎力變化，且作成與減彎力之合力而使相當於輥平衡力之輥彎力作用在作業輥軸承座，並於該狀態下結束金屬板材之軋延，然後，減少減彎力與增彎力，並維持作成前述合力的輥平衡力者。(5) A rolling method of a metal sheet, which is the hot rolling rolling method described above, and further, before the start of rolling, the bending force and the bending force are both acted upon and made The force of the roller corresponding to the balance of the roller is applied to the bearing roller bearing seat, and then the bending force is changed to constitute a predetermined bending force in the rolling, and the bending force is changed, so that the bending force is The combined force of the bending force maintains the balance force of the roller, and then, at the start of the rolling delay, continuously maintains the bending force to maintain the control of the bending force in the predetermined rolling, and changes the bending force, and constitutes a predetermined rolling force for making a resultant force The bending force of the extension work is applied to the state of the work roll chock, and the rolling force of the work roll in the predetermined rolling is maintained during the rolling, and then the rolling delay is completed, and the bending force is changed, and the bending force is changed. Combined with the bending force, the roll bending force corresponding to the balance of the roller acts on the work roll chock, and in this state, the rolling of the sheet metal is finished, and then the bending force and the bending force are reduced, and the production is maintained. The above-mentioned combined force of the roller balance.

於該金屬板材之軋延方法中，亦可測定產生減彎力之油壓缸內或與該油壓缸接連的油壓配管內之油壓，並根據其測定值，控制增彎力，使作成合力而作用在作業輥軸承座之輥彎力構成預定值。In the rolling method of the metal sheet, the oil pressure in the hydraulic cylinder that generates the bending force or in the hydraulic piping connected to the hydraulic cylinder may be measured, and the bending force is controlled according to the measured value, so that the bending force is controlled. The roll bending force acting on the work roll chock is combined to form a predetermined value.

產業上之可利用性Industrial availability

本發明可作成鋼板之軋延，特別是必須構成大開度的可逆軋延機，又，作成必須構成強力之板冠高‧形狀控制的軋延機而提供從極厚之板材至到達薄板之領域的軋延機及軋延方法。The invention can be used for rolling of steel plates, in particular, it is necessary to form a reversible rolling mill with a large opening degree, and also to provide a rolling stand with a strong crown height and shape control to provide a field from extremely thick plates to reaching thin plates. Rolling mill and rolling method.

1，1’，1A，1B，1C，1D，1E‧‧‧軋延機1,1',1A,1B,1C,1D,1E‧‧‧Rolling machine

1-1‧‧‧上作業輥1-1‧‧‧Working roller

1-2‧‧‧下作業輥1-2‧‧‧Working rolls

2-1‧‧‧上補強輥2-1‧‧‧Upper reinforcing roller

2-2‧‧‧下補強輥2-2‧‧‧Under the reinforcing roller

3-1‧‧‧上作業輥軸承座3-1‧‧‧Upper work roll chock

3-2‧‧‧下作業輥軸承座3-2‧‧‧Working roller housing

4-1‧‧‧上補強輥軸承座4-1‧‧‧Upper reinforcing roller bearing

4-2‧‧‧下補強輥軸承座4-2‧‧‧Reinforced roller bearing housing

5-1，5-2‧‧‧一對第1凸塊5-1,5-2‧‧‧A pair of first bumps

5-3，5-4‧‧‧一對第2凸塊5-3,5-4‧‧‧A pair of 2nd bumps

6-1‧‧‧入口側上增彎曲裝置6-1‧‧‧Incremental bending device on the inlet side

6-2‧‧‧出口側上增彎曲裝置6-2‧‧‧Extension side bending device

6-3‧‧‧入口側下增彎曲裝置6-3‧‧‧Inlet side lower bending device

6-4‧‧‧出口側下增彎曲裝置6-4‧‧‧Exit side lower bending device

7-1‧‧‧入口側上減彎曲裝置7-1‧‧‧Incision side upper bending device

7-2‧‧‧出口側上減彎曲裝置7-2‧‧‧Extension side bending device

7-3‧‧‧入口側下減彎曲裝置7-3‧‧‧Inlet side lower bending device

7-4‧‧‧出口側下減彎曲裝置7-4‧‧‧Exit side lower bending device

8-1‧‧‧入口側補強輥平衡裝置8-1‧‧‧Inlet side reinforcing roller balancing device

8-2‧‧‧出口側補強輥平衡裝置8-2‧‧‧Exit side reinforcing roller balancing device

9‧‧‧外罩9‧‧‧ Cover

10‧‧‧金屬板材10‧‧‧Metal sheet

11‧‧‧壓下裝置11‧‧‧Repression device

12‧‧‧外罩窗12‧‧‧ Cover window

31‧‧‧溝31‧‧‧ditch

第2圖係顯示上作業輥軸承座與上減彎曲裝置之連接結構圖。Figure 2 shows the connection between the upper work roll chock and the upper bending device Structure diagram.

1‧‧‧軋延機1‧‧‧Rolling machine

1-1‧‧‧上作業輥1-1‧‧‧Working roller

1-2‧‧‧下作業輥1-2‧‧‧Working rolls

2-1‧‧‧上補強輥2-1‧‧‧Upper reinforcing roller

2-2‧‧‧下補強輥2-2‧‧‧Under the reinforcing roller

3-1‧‧‧上作業輥軸承座3-1‧‧‧Upper work roll chock

3-2‧‧‧下作業輥軸承座3-2‧‧‧Working roller housing

4-1‧‧‧上補強輥軸承座4-1‧‧‧Upper reinforcing roller bearing

4-2‧‧‧下補強輥軸承座4-2‧‧‧Reinforced roller bearing housing

5-1，5-2‧‧‧一對第1凸塊5-1,5-2‧‧‧A pair of first bumps

9‧‧‧外罩9‧‧‧ Cover

10‧‧‧金屬板材10‧‧‧Metal sheet

11‧‧‧壓下裝置11‧‧‧Repression device

12‧‧‧外罩窗12‧‧‧ Cover window

Claims

一種金屬板材之軋延機，包含有：上作業輥及下作業輥，軋延金屬板材；上補強輥及下補強輥，分別支持前述上作業輥及前述下作業輥；上作業輥軸承座及下作業輥軸承座，分別支持前述上作業輥及前述下作業輥；上補強輥軸承座及下補強輥軸承座，分別支持前述上補強輥及前述下補強輥；外罩，收納前述上作業輥軸承座、前述下作業輥軸承座、前述上補強輥軸承座及前述下補強輥軸承座，並具有相互朝內側突出而負擔作用在前述下作業輥之軋延方向力的一對第1凸塊，且形成以和前述上作業輥軸承座的接觸面來負擔作用在前述上作業輥之軋延方向力的外罩窗；第1油壓缸，設置於前述一對第1凸塊，並具有透過前述上作業輥軸承座賦予前述上作業輥增彎力之第1活塞桿；第2油壓缸，設置於前述一對第1凸塊，並具有透過前述下作業輥軸承座賦予前述下作業輥增彎力之第2活塞桿；第3油壓缸，設置於前述上補強輥軸承座，並具有賦予前述上作業輥減彎力，或透過提升前述上作業輥而使前述上作業輥與前述上補強輥接觸來產生輥平衡力之第3活塞桿；及第4油壓缸，具有賦予前述下作業輥減彎力之第4活塞桿。 A metal sheet rolling mill comprises: an upper work roll and a lower work roll, a rolled metal sheet; an upper reinforcing roll and a lower reinforcing roll respectively supporting the upper work roll and the lower work roll; the upper work roll bearing seat and a lower work roll bearing seat respectively supporting the upper work roll and the lower work roll; an upper reinforcing roll bearing seat and a lower reinforcing roll bearing seat respectively supporting the upper reinforcing roller and the lower reinforcing roller; and the outer cover accommodating the upper working roller bearing a seat, the lower work roll chock, the upper reinforcing roll chock, and the lower reinforcing roll chock, and a pair of first bumps that protrude toward the inside and bear a force acting on the rolling direction of the lower work roll, And forming a cover window for supporting a rolling direction force acting on the upper work roll with a contact surface with the upper work roll chock; the first hydraulic cylinder is disposed on the pair of first bumps and has the foregoing a first piston rod that imparts a bending force to the upper work roll to the upper work roll bearing housing; the second hydraulic pressure cylinder is disposed on the pair of first projections and has the lower end of the lower work roll bearing seat a second piston rod for increasing the bending force of the roll; the third hydraulic cylinder is disposed on the upper reinforcing roller bearing seat, and has a bending force for imparting the upper work roll or the upper work roll by lifting the upper work roll Contact with the aforementioned upper reinforcing roller to generate roller balance force The third piston rod and the fourth hydraulic cylinder have a fourth piston rod that imparts a bending force to the lower work roll.

如申請專利範圍第1項之金屬板材之軋延機，其中前述第1油壓缸與前述第2油壓缸係於前述一對第1凸塊內設置在平面圖上相互不同之位置。 The rolling mill for sheet metal according to the first aspect of the invention, wherein the first hydraulic cylinder and the second hydraulic cylinder are disposed at positions different from each other in a plan view in the pair of first projections.

如申請專利範圍第1項之金屬板材之軋延機，其中於前述下補強輥軸承座設置有前述第4油壓缸。 A rolling mill for a sheet metal according to the first aspect of the invention, wherein the fourth reinforcing cylinder is provided in the lower reinforcing roller bearing housing.

如申請專利範圍第1項之金屬板材之軋延機，其中前述外罩更包含有於前述一對第1凸塊之下方自前述外罩朝內側突出的一對第2凸塊，且於前述一對第2凸塊設置有前述第4油壓缸。 The rolling mill for a sheet metal according to the first aspect of the invention, wherein the outer cover further includes a pair of second projections projecting from the outer cover toward the inner side of the pair of first projections, and the pair of the second projections The second bump is provided with the fourth hydraulic cylinder.

如申請專利範圍第1項之金屬板材之軋延機，其中於前述第3活塞桿之前端部形成第1卡合部，且於前述上作業輥軸承座，形成前述第1卡合部藉由前述上作業輥之輥軸方向移動而卡合的第2卡合部。 The rolling mill for sheet metal according to the first aspect of the invention, wherein the first engaging portion is formed at an end portion of the third piston rod, and the first engaging portion is formed by the upper working roller bearing housing. The second engaging portion that is moved in the direction of the roller axis of the upper work roll to be engaged.

一種金屬板材之軋延方法，係使用如申請專利範圍第1至5項中任一項之前述軋延機，又，在藉由大於前述第1油壓缸之行程的輥開度進行軋延時，會藉由前述第3活塞桿之拉引操作產生輥平衡力。 A rolling method for a sheet metal according to any one of claims 1 to 5, wherein the rolling delay is performed by a roll opening greater than a stroke of the first hydraulic cylinder The roller balancing force is generated by the pulling operation of the third piston rod.

一種金屬板材之軋延方法，係使用如申請專利範圍第1至5項中任一項之前述軋延機，又，在藉由未大於前述第1油壓缸之行程的輥開度進行軋延時，會進行以下步驟，即：第1步驟，係於開始軋延前，使增彎力與減彎力雙方作用在前述上作業輥及前述下作業輥，藉此，作成合力而使相當於輥平衡力之輥彎力作用在前述上作業輥及前述下作業輥；第2步驟，係之後使前述減彎力變化成相當於軋延中減彎力之減彎力，並增加前述增彎力，使合力維持前述輥平衡力；第3步驟，係於開始軋延時，保持前述減彎力，並使前述增彎力變化，藉此，作成合力而使相當於軋延中輥彎力之輥彎力作用在前述上作業輥及前述下作業輥；第4步驟，係保持前述軋延中輥彎力而進行軋延；第5步驟，係於結束軋延時，保持前述減彎力，並使前述增彎力變化，藉此，作成合力而使相當於前述輥平衡力之輥彎力作用在前述上作業輥及前述下作業輥，並於該狀態下結束金屬板材之軋延；及第6步驟，係之後減少前述減彎力與前述增彎力，以維持前述輥平衡力。 A rolling method for a sheet metal according to any one of claims 1 to 5, wherein the rolling mill is rolled by a roll opening which is not larger than the stroke of the first hydraulic cylinder. Delay, the following steps will be taken, namely: In the first step, before the rolling is started, both the bending force and the bending force are applied to the upper work roll and the lower work roll, thereby forming a resultant force to cause a roll bending force corresponding to the roll balance force to act on The upper work roll and the lower work roll; in the second step, the bending force is changed to a bending force corresponding to the bending force in the rolling, and the bending force is increased to maintain the balance force of the roller The third step is to start the rolling delay, maintain the aforementioned bending force, and change the bending force, thereby making a resultant force and causing the roll bending force corresponding to the roll bending force to act on the upper work roll. And the lower work roll; the fourth step is to roll the bending force during the rolling, and the fifth step is to end the rolling delay, maintain the bending force, and thereby change the bending force. a rolling force corresponding to the balance of the rolls is applied to the upper work roll and the lower work roll, and the rolling of the metal sheet is completed in this state; and the sixth step is followed by reducing the aforementioned bending Force and the aforementioned bending force to maintain the aforementioned roller flat Force.

如申請專利範圍第7項之金屬板材之軋延方法，其係連續地測定前述第3油壓缸內之油壓、與前述第3油壓缸接連的油壓配管內之油壓、前述第4油壓缸內之油壓及與前述第4油壓缸接連的油壓配管內之油壓之至少一者，並根據其測定值，控制前述增彎力，使作成合力而作用在前述上作業輥軸承座及前述下作業輥軸承座之前述輥彎力構成預定值。 The method for rolling a sheet metal according to the seventh aspect of the invention, wherein the hydraulic pressure in the third hydraulic cylinder and the hydraulic pressure in the hydraulic piping connected to the third hydraulic cylinder are continuously measured, (4) controlling at least one of a hydraulic pressure in the hydraulic cylinder and a hydraulic pressure in the hydraulic piping connected to the fourth hydraulic cylinder, and controlling the bending force based on the measured value to cause a combined force to act on the above The aforementioned roll bending force of the work roll chock and the lower work roll chock constitutes a predetermined value.

一種金屬板材之軋延方法，係使用如申請專利範圍第1至5項中任一項之前述軋延機，又，軋延時，在藉由大於前述第1油壓缸之行程的輥開度進行軋延時，會藉由前述第3活塞桿之拉引操作，賦予前述上作業輥之輥平衡力，然後，在藉由未大於前述第1油壓缸之行程的輥開度進行軋延時，會進行以下步驟，即：第1步驟，係於開始軋延前，使增彎力與減彎力雙方作用在前述上作業輥及前述下作業輥，藉此，作成合力而使相當於輥平衡力之輥彎力作用在前述上作業輥及前述下作業輥；第2步驟，係之後使前述減彎力變化成相當於軋延中減彎力之減彎力，並增加前述增彎力，使合力維持前述輥平衡力；第3步驟，係於開始軋延時，保持前述減彎力，並使前述增彎力變化，藉此，作成合力而使相當於軋延中輥彎力之輥彎力作用在前述上作業輥及前述下作業輥；第4步驟，係保持前述軋延中輥彎力而進行軋延；第5步驟，係於結束軋延時，保持前述減彎力，並使前述增彎力變化，藉此，作成合力而使相當於前述輥平衡力之輥彎力作用在前述上作業輥及前述下作業輥，並於該狀態下結束金屬板材之軋延；及第6步驟，係之後減少前述減彎力與前述增彎力，以維持前述輥平衡力。 A rolling method for a metal sheet, which uses the calender described in any one of claims 1 to 5, and further, the rolling delay is at a roll opening by a stroke larger than the first hydraulic cylinder. The rolling delay is performed, and the roller balancing force of the upper working roller is imparted by the drawing operation of the third piston rod, and then the rolling delay is performed by the roller opening degree not greater than the stroke of the first hydraulic cylinder. The first step is to apply the bending force and the bending force to both the upper work roll and the lower work roll before starting the rolling, thereby making the resultant force equal to the roll balance. The roller bending force acts on the upper work roll and the lower work roll; in the second step, the bending force is changed to a bending force corresponding to the bending force in the rolling, and the bending force is increased. The third step is to start the rolling delay, maintain the bending force, and change the bending force, thereby making a roll force corresponding to the bending force of the rolling roll. The force acts on the aforementioned upper work roll and the aforementioned lower work roll; The rolling step is performed while maintaining the rolling force in the rolling, and the fifth step is to terminate the rolling delay, maintain the bending force, and change the bending force, thereby forming a resultant force corresponding to the aforementioned The roll bending force of the roller balance force acts on the upper work roll and the lower work roll, and ends the rolling of the metal sheet in this state; and the sixth step, after the reduction of the bending force and the aforementioned bending force, Maintain the aforementioned roller balance force.

如申請專利範圍第9項之金屬板材之軋延方法，其係連續地測定前述第3油壓缸內之油壓、與前述第3油壓缸接連的油壓配管內之油壓、前述第4油壓缸內之油壓及與前述第4油壓缸接連的油壓配管內之油壓之至少一者，並根據其測定值，控制前述增彎力，使作成合力而作用在前述上作業輥軸承座及前述下作業輥軸承座之前述輥彎力構成預定值。 For example, the rolling method of the metal sheet of the ninth application patent scope is linked The hydraulic pressure in the third hydraulic cylinder, the hydraulic pressure in the hydraulic pipe connected to the third hydraulic cylinder, the hydraulic pressure in the fourth hydraulic cylinder, and the fourth hydraulic cylinder are continuously measured. And controlling at least one of the oil pressures in the hydraulic piping, and controlling the bending force according to the measured value, so as to form a resultant force to act on the roll bending force of the upper work roll chock and the lower work roll chock Predetermined value.