TWI430854B - Rolling mill for metal sheet and rolling method - Google Patents
Rolling mill for metal sheet and rolling method Download PDFInfo
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- TWI430854B TWI430854B TW100102282A TW100102282A TWI430854B TW I430854 B TWI430854 B TW I430854B TW 100102282 A TW100102282 A TW 100102282A TW 100102282 A TW100102282 A TW 100102282A TW I430854 B TWI430854 B TW I430854B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B29/00—Counter-pressure devices acting on rolls to inhibit deflection of same under load, e.g. backing rolls ; Roll bending devices, e.g. hydraulic actuators acting on roll shaft ends
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
- B21B13/14—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories having counter-pressure devices acting on rolls to inhibit deflection of same under load; Back-up rolls
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
- B21B37/38—Control of flatness or profile during rolling of strip, sheets or plates using roll bending
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
- B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
- B21B2013/025—Quarto, four-high stands
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Description
本發明係有關於一種輥軋機，其係金屬板材之輥軋機，具有高應答性且能夠賦予強力的輥彎曲力。特別是有關於一種輥軋機，其能夠得到適合於厚板輥軋機或薄板熱輥軋的粗輥軋機之大的上下操作輥間最大開度，同時能夠賦予強力的輥彎曲力。The present invention relates to a rolling mill which is a rolling mill for sheet metal having high responsiveness and capable of imparting a strong roller bending force. In particular, there is a rolling mill which is capable of obtaining a maximum opening degree between the upper and lower operating rolls of a rough rolling mill suitable for a thick plate rolling mill or a sheet hot rolling, and capable of imparting a strong roll bending force.
而且，本發明亦有關於一種輥軋方法，其係使用高應答且能夠賦予強力的板凸度、形狀控制功能之上述輥軋機。Moreover, the present invention also relates to a rolling method which uses the above-described rolling mill which is highly responsive and capable of imparting a strong plate crown and shape control function.
在金屬板材的輥軋操作，輥軋板的凸度及形狀係當作重要的品質指標，已有揭示許多關於板凸度、形狀控制的技術。In the rolling operation of sheet metal, the crown and shape of the rolled sheet are regarded as important quality indicators, and many techniques for plate crowning and shape control have been disclosed.
但是，在例如厚板輥軋機或薄板熱輥軋的粗輥軋機之藉由多遍的逆輥軋來製造板厚度較厚的製品之輥軋機，係有必要得到比輥軋材料的板厚度更大的上下操作輥間的間隙(輥開度)。因此，在板凸度、形狀控制裝置係被課以輥軋機設備設計上的限制。However, in a rough rolling mill such as a slab rolling mill or a sheet hot rolling mill, it is necessary to obtain a sheet thickness of a thicker plate by a plurality of times of reverse rolling, and it is necessary to obtain a plate thickness larger than that of the rolled material. Large gap between the upper and lower operation rollers (roller opening). Therefore, the plate crown and shape control device is limited by the design of the roll mill equipment.
例如，在專利文獻1，係揭示一種輥軋方法，其係在藉由複數遍來輥軋成為預定板厚度之厚板輥軋，採用操作輥彎曲裝置作為形狀控制裝置，且基於在前一遍的的輥軋實績值來控制輥彎曲力。For example, Patent Document 1 discloses a rolling method in which a thick plate rolling is performed by a plurality of passes to a predetermined plate thickness, and a handle roll bending device is employed as a shape control device, and based on the previous one. Rolling actual value to control the roll bending force.
在專利文獻1所揭示的輥軋機型係4段輥軋機，其輥軋機形式係第14圖所表示的構造。在第14圖的輥軋機配置減少彎曲裝置而成者係成為第10圖所表示的輥軋機。兩輥軋機係基本上為相同構造。亦即，連接上增強輥軸承座4-1之臂部係保持上操作輥軸承座3-1之形式。在該臂部組入上操作輥1-1的增加彎曲裝置6-1、6-2。藉由設作此種形式，能夠得到大的輥開度。The roll mill type four-stage rolling mill disclosed in Patent Document 1 has a roll mill form which is the structure shown in Fig. 14. In the rolling mill arrangement of Fig. 14, the reduction of the bending device is the rolling mill shown in Fig. 10. The two-roll mill is basically of the same construction. That is, the arm portion of the upper reinforcing roller bearing housing 4-1 is held in the form of the upper operating roller bearing housing 3-1. The bending device 6-1, 6-2 of the upper operation roller 1-1 is incorporated in the arm portion. By providing such a form, a large roll opening degree can be obtained.
在第10圖和第14圖的輥軋機，下操作輥1-2的增加彎曲裝置6-3、6-1係被組入連接輥軋機機架9之突出塊。此外，作為能夠得到較大輥開度之輥軋機形式，係如第11圖所表示，亦存在上下增強輥軸承座4-1、4-2保持操作輥軸承座3-1、3-2之輥軋機。In the rolling mills of Figs. 10 and 14, the additional bending means 6-3, 6-1 of the lower operating roller 1-2 are incorporated into the protruding blocks of the joining roll stand 9. Further, as a rolling mill form capable of obtaining a large roll opening degree, as shown in Fig. 11, there are also upper and lower reinforcing roll chocks 4-1, 4-2 which hold the operating roll chocks 3-1, 3-2. Rolling mill.
而且，所謂增加彎曲裝置，係意味著賦予操作輥軸承座增大輥開度方向的力之油壓裝置。所謂增加彎曲裝置，係包含其引動器亦即油壓缸之裝置的總稱。但是，本發明為了將說明簡單化，所謂增加彎曲裝置，係只要未特別預先告知，係指其引動器亦即油壓缸。將操作輥因增加彎曲裝置而負載的力稱為增加彎曲力。Further, the addition of the bending means means a hydraulic device that imparts a force in the direction of the opening of the roller to the operating roller bearing housing. The so-called increase bending device is a general term for a device including a hydraulic cylinder of its actuator. However, in order to simplify the description of the present invention, the so-called increase bending device is a hydraulic cylinder which is an actuator, unless otherwise specified. The force that the operating roller loads due to the addition of the bending device is referred to as increasing the bending force.
另一方面，將賦予操作輥軸承座減小輥開度方向的力之油壓裝置稱為減少彎曲裝置，而且，將操作輥因其而負載的力稱為減少彎曲力。又，所謂減少彎曲裝置，係包含其引動器亦即油壓缸之裝置的總稱。但是，本發明為了將說明簡單化，所謂減少彎曲裝置，係只要未特別預先告知，係指其引動器亦即油壓缸。On the other hand, a hydraulic device that imparts a force in the direction of the opening degree of the operation roller bearing housing is referred to as a reduction bending device, and a force by which the operation roller is loaded is referred to as a reduction bending force. Further, the reduction bending device is a general term for a device including a hydraulic cylinder which is an actuator. However, in order to simplify the description of the present invention, the reduction bending means is a hydraulic cylinder which is an actuator, unless otherwise specified.
在專利文獻2，係揭示一種輥軋機，其係如第12圖所表示，係在操作輥軸承座3-1、3-2組入操作輥的增加彎曲裝置6-1、6-2。Patent Document 2 discloses a rolling mill which is shown in Fig. 12 and which is an increased bending device 6-1, 6-2 in which the operation roller bearing housings 3-1, 3-2 are incorporated into the operation roller.
在專利文獻3，係揭示一種輥交叉(roll cross)方式之輥軋機。該輥軋機亦是如第12圖所表示，係在操作輥軸承座3-1、3-2組入操作輥的增加彎曲裝置6-1、6-2。Patent Document 3 discloses a roll cross roll mill. The rolling mill is also shown in Fig. 12, and is an increased bending device 6-1, 6-2 in which the operating roller bearing housings 3-1, 3-2 are incorporated into the operating roller.
在專利文獻4，係揭示一種輥軋機，其係如第13圖所表示，具有操作輥位移功能。該輥軋機係在與輥軋機機架整體的突出塊5-1、5-2組入增加彎曲裝置6-1、6-2。而且，在專利文獻4所揭示的輥軋機，係在輥軸方向配備複數個增加彎曲裝置的油壓缸且設法使操作輥位移時不需要偏荷重。Patent Document 4 discloses a rolling mill having a function of operating a roller displacement as shown in Fig. 13. The rolling mill is incorporated in the protruding blocks 5-1, 5-2 integral with the rolling mill frame to add bending devices 6-1, 6-2. Further, in the rolling mill disclosed in Patent Document 4, a plurality of hydraulic cylinders for increasing the bending means are provided in the direction of the roller axis, and it is not necessary to bias the load when trying to displace the operating roller.
而且，通常厚鋼板的輥軋機係如第14圖所表示，係無減少彎曲裝置(參照專利文獻1、2、3、4)。Further, in general, a rolling mill of a thick steel plate is shown in Fig. 14, and there is no reduction bending device (see Patent Documents 1, 2, 3, and 4).
但是，為了賦予強力的板凸度、形狀控制功能，本發明之輥軋機係將具有減少彎曲裝置設作前提。因此，第10圖、第11圖、第12圖、第13圖係表示具有減少彎曲裝置的情況。However, in order to impart a strong plate crown and shape control function, the roll mill of the present invention has a premise of reducing the bending device. Therefore, Fig. 10, Fig. 11, Fig. 12, and Fig. 13 show the case where the bending device is reduced.
[專利文獻1]特開平6-87011號公報[Patent Document 1] JP-A-6-87011
[專利文獻2]特開昭62-220205號公報[Patent Document 2] JP-A-62-220205
[專利文獻3]特開平6-198307號公報[Patent Document 3] Japanese Patent Laid-Open No. Hei 6-198307
[專利文獻4]特開平4-52014號公報[Patent Document 4] Japanese Patent Publication No. 4-52014
如專利文獻1所揭示之典型的厚板輥軋機(第10圖、第11圖所表示的輥軋機)，係將能夠得到大的輥開度設作最優先而設計。亦即，連接上增強輥軸承座4-1之臂部係保持上操作輥軸承座3-1之構造，該上增強輥軸承座4-1係藉由壓下裝置11來設定、控制上下位置。而且，因為在構造上大小有限制之該臂部組入增加彎曲裝置6-1、6-2，組入大容量的油壓缸係困難的。因此，無法賦予強力的輥彎曲力。A typical thick plate rolling mill (a rolling mill shown in Figs. 10 and 11) disclosed in Patent Document 1 is designed to give a large roll opening degree as the highest priority. That is, the arm portion of the upper reinforcing roller bearing housing 4-1 is held to maintain the structure of the upper operating roller bearing housing 3-1, and the upper reinforcing roller bearing housing 4-1 is set and controlled by the pressing device 11 to control the upper and lower positions. . Further, since the arm portion is incorporated in the structure to increase the bending means 6-1, 6-2, it is difficult to assemble a large-capacity hydraulic cylinder system. Therefore, it is impossible to impart a strong roller bending force.
例如，即便在操作輥直徑為800mm左右的熱軋板條機精加工輥軋機，超過200tf/chock能力的操作輥彎曲裝置係被實用化。對此，即便操作輥直徑為1000mm左右的厚板輥軋機，卻只有200tf/chock能力的操作輥彎曲裝置係被實用化。從輥直徑的對比，可明白更大容量的輥彎曲力係必要的。For example, even in a hot-rolling slater finishing rolling mill having a diameter of about 800 mm, a running roller bending device having a capacity of more than 200 tf/chock is put into practical use. On the other hand, even if a thick plate rolling mill having a roll diameter of about 1000 mm is operated, the operating roll bending device having a capacity of only 200 tf/chock is put into practical use. From the comparison of the roll diameters, it is understood that a larger capacity roll bending force is necessary.
在此，作為輥彎曲效果的指標之輥撓度，係所負載的彎曲力距為相同時，與輥的剖面二次力距成反比例。因此，相較於操作輥直徑為800mm的熱軋板條機精加工輥軋機，操作輥直徑為1000mm的厚板輥軋機的輥彎曲效果係較差而只有為約60%。Here, the roll deflection, which is an index of the roll bending effect, is inversely proportional to the cross-sectional secondary force of the roll when the bending force load is the same. Therefore, the roll bending effect of the thick plate rolling mill having a running roll diameter of 1000 mm is inferior and only about 60%, compared to the hot rolling slat finishing finishing rolling mill having a working roll diameter of 800 mm.
因此，作為厚板輥軋機的板凸度、形狀控制裝置，係主要將輥交叉功能和輥位移功能實用化且活用。使用操作輥彎曲裝置係不多。Therefore, as the plate crown and shape control device of the thick plate rolling mill, the roll cross function and the roll shift function are mainly used and utilized. There are not many bending devices using the operating roller.
但是，輥交叉功能和輥位移功能在輥軋中欲迅速設定變更係困難的。因此，由於不可能除去輥軋中的干擾因素，作為形狀控制終端，可說是不完全的。However, it is difficult to quickly set the change of the roll cross function and the roll shift function during rolling. Therefore, since it is impossible to remove the interference factor in the rolling, it can be said that it is incomplete as a shape control terminal.
另一方面，如專利文獻2及3所揭示的輥軋機(第12圖)，在操作輥軸承座3-1、3-2組入增加彎曲裝置6-1、6-2的情況，係能夠得到較長的油壓缸衝程。藉此，能夠實現大的輥開度。而且，因為亦能夠組入大容量的油壓缸，所以即便厚板輥軋機，亦能夠期待實用的操作輥彎曲效果。On the other hand, as in the case of the rolling mills disclosed in Patent Documents 2 and 3 (Fig. 12), it is possible to incorporate the bending devices 6-1 and 6-2 in the operation of the roller housings 3-1 and 3-2. Get a longer hydraulic cylinder stroke. Thereby, a large roll opening degree can be achieved. Further, since a large-capacity hydraulic cylinder can be incorporated, a practical operation roller bending effect can be expected even in a thick plate rolling mill.
另一方面，相較於增強輥，因為操作輥1-1、1-2係容易損耗，定期性的輥重組係必要的。因此，每次該重組操作時，必須將增加彎曲裝置的油壓配管裝卸。由於此情形，不僅是輥重組時間變長，而且在配管裝卸時微小異物混入油壓配管內的可能性變高。On the other hand, compared with the reinforcing roller, since the operation rollers 1-1 and 1-2 are easily worn out, regular roller reorganization is necessary. Therefore, each time the recombination operation is performed, it is necessary to load and unload the hydraulic piping that increases the bending device. In this case, not only is the roll recombination time longer, but also the possibility that fine foreign matter is mixed into the hydraulic piping during pipe loading and unloading becomes high.
因此，該輥軋機係無法採用用以高應答油壓控制之伺服閥。又，為了使配管裝卸容易，必須透過柔軟構造且裝卸自如的油壓配管(撓性配管等)連接至各自的油壓控制閥。又，採用撓性配管時，因為係柔軟構造的緣故，有將油壓的變動吸收緩和的情形。因此，欲作為應答性高的輥彎曲裝置係困難的。Therefore, the rolling mill cannot use a servo valve for high response oil pressure control. Moreover, in order to facilitate the attachment and detachment of the piping, it is necessary to connect the hydraulic pressure control valves (flexible pipes, etc.) that are flexible and detachable to each of the hydraulic control valves. Moreover, when a flexible piping is used, since the soft structure is softened, the fluctuation of the fluctuation of the hydraulic pressure may be alleviated. Therefore, it is difficult to use a roll bending device which is highly responsive.
另一方面，在專利文獻2及4所揭示的輥軋機(第13圖)，係在連接輥軋機機架9的突出塊5-1、5-2組入增加彎曲裝置6-1、6-2。因此，每次操作輥重組操作時，不必將增加彎曲裝置的油壓配管裝卸。因而，該輥軋機係能夠作為應答性高的輥彎曲裝置。因此，被大量使用在熱軋板條機精加工輥軋機。On the other hand, in the rolling mills disclosed in Patent Documents 2 and 4 (Fig. 13), the bending members 6-1, 6- are incorporated in the protruding blocks 5-1, 5-2 of the joining roll stand 9. 2. Therefore, it is not necessary to attach or detach the hydraulic piping that increases the bending device each time the roller recombination operation is operated. Therefore, the rolling mill can be used as a roller bending device with high responsiveness. Therefore, it is used in a large number of finishing mills in hot-rolling slats.
但是，該輥軋機，其支撐作用於上操作輥1-1的偏移分力等的輥軋方向力係操作輥軸承座3-1與突出塊5-2之接觸面。因此，操作壓下裝置11而增大輥開度時，操作輥的旋轉中心係成為該接觸面的外側，致使操作輥軸承座3-1的姿勢變成不安定。結果，無法得到大的開度。因此，必需較大輥開度的厚板輥軋機，係幾乎不採用該輥軋機。However, in the rolling mill, the rolling direction force acting on the offset component force or the like of the upper operation roller 1-1 is the contact surface between the operation roller bearing housing 3-1 and the protruding block 5-2. Therefore, when the pressing device 11 is operated to increase the opening degree of the roller, the center of rotation of the operating roller becomes the outside of the contact surface, causing the posture of the operating roller bearing housing 3-1 to become unstable. As a result, a large opening cannot be obtained. Therefore, a thick plate rolling mill having a large roll opening degree is rarely used.
如上述，針對能夠得到較大輥開度輥軋機，先前技術係不存在應答性高且能夠組入強力的操作輥彎曲裝置之輥軋機。本發明所欲解決之課題，係提供一種輥軋機，其能夠得到大的上下操作輥間開度，同時高應答且能夠賦予強力的輥彎曲力。As described above, in the prior art, there is no rolling mill having a high responsiveness and capable of incorporating a powerful operating roller bending device. SUMMARY OF THE INVENTION The problem to be solved by the present invention is to provide a rolling mill capable of obtaining a large opening between upper and lower operating rolls while being highly responsive and capable of imparting a strong roll bending force.
為了解決上述課題，本發明者等專心重複研討的結果，發現藉由將從機架往其內側突出的突出塊，以相對於通過線為往下側位移、且相對於通過線為上下非對稱的方式設置，以下的情形係成為可能。In order to solve the problem, the inventors of the present invention have repeatedly studied and found that the protruding block that protrudes from the frame toward the inside thereof is displaced downward with respect to the passing line and is asymmetric with respect to the passing line. The way to set up, the following situation is possible.
(a)在上操作輥軸承座所負載的輥軋方向力，經常地能夠藉由機架來承受之構造。藉此，不管輥開度如何均能夠安定地支撐操作輥軸承座。(a) The rolling direction force applied to the upper operating roller chock is often capable of being supported by the frame. Thereby, the operating roller bearing housing can be stably supported regardless of the degree of opening of the roller.
(b)在上述突出塊，能夠組入上下增加彎曲裝置。藉此，能夠具備大容量、大衝程的強力彎曲裝置。(b) In the above-mentioned protruding block, the bending device can be added up and down. Thereby, it is possible to provide a strong bending device having a large capacity and a large stroke.
(c)又，藉由在突出塊組入增加彎曲裝置，能夠將油壓配管固定化，能夠應用伺服閥。藉此，控制高應答的增加彎曲力係成為可能。(c) Further, by adding the bending device to the protruding block, the hydraulic piping can be fixed, and the servo valve can be applied. Thereby, it is possible to control the increase of the bending force of the high response.
又，亦發現藉由該等裝置上的發明，以下的輥軋機操作方法係成為可能。Moreover, it has also been found that the following rolling mill operating methods are possible by the inventions of such devices.
(d)即便應答性低的減少彎曲裝置，藉由與應答性快的增加彎曲裝置合作，高應答的彎曲力控制亦成為可能。藉此，能夠大幅度地改善製品品質、輥軋產率。(d) Even if the bending device is low in responsiveness, it is possible to control the bending force of high response by cooperating with the increased bending device with high responsiveness. Thereby, the product quality and the rolling yield can be greatly improved.
本發明係基於該等知識而完成，其要旨係如以下。The present invention has been completed based on such knowledge, the gist thereof being as follows.
(1) 一種金屬板材之輥軋機，該輥軋機係具有上下一對操作輥及將該等各自支撐的上下一對增強輥之金屬板材之輥軋機，其特徵為在上下操作輥負載各自增加彎曲力之油壓缸係配備在往輥軋機機架的內側突出的突出塊，在下操作輥主體所負載的輥軋方向力係藉由前述突出塊與下操作輥軸承座(roll chock)的接觸面支撐，而且在上操作輥主體所負載的輥軋方向力係藉由位於前述突出塊的上方之輥軋機機架窗與上操作輥軸承座的接觸面支撐。(1) A rolling mill for sheet metal having a pair of upper and lower operation rolls and a rolling mill for metal sheets of the upper and lower pair of reinforcing rolls, each of which is characterized in that the upper and lower operation roller loads are each increased in bending The hydraulic cylinder of the force is provided with a protruding block protruding toward the inner side of the rolling mill frame, and the rolling direction force supported by the lower operating roller main body is the contact surface with the lower operating roller bearing chock by the aforementioned protruding block The support and the rolling direction force supported by the upper operating roller body are supported by the contact faces of the roll shop frame window and the upper operating roll chock located above the above-mentioned protruding block.
如前述，所謂增加彎曲裝置，係包含其引動器亦即油壓缸之裝置的總稱。但是，本發明為了將說明簡單化，所謂增加彎曲裝置，係只要未特別預先告知，係指其引動器亦即油壓缸。As described above, the term "increasing bending device" is a generic term for a device including a hydraulic cylinder of its actuator. However, in order to simplify the description of the present invention, the so-called increase bending device is a hydraulic cylinder which is an actuator, unless otherwise specified.
(2)如(1)所述之金屬板材之輥軋機，其中在上操作輥負載增加彎曲力之油壓缸與在下操作輥負載增加彎曲力之油壓缸，在前述突出塊內係配備在平面圖上的不同位置。(2) The rolling mill for sheet metal according to (1), wherein the hydraulic cylinder that increases the bending force at the upper operation roller load and the hydraulic cylinder that increases the bending force at the lower operation roller load are provided in the aforementioned protruding block Different locations on the floor plan.
(3)如(1)或(2)所述之金屬板材之輥軋機，其中在上操作輥負載減少彎曲力之油壓缸，係配備在上增強輥軸承座。(3) The rolling mill for sheet metal according to (1) or (2), wherein the hydraulic cylinder for reducing the bending force at the upper operation roller is provided in the upper reinforcing roller bearing housing.
與增加彎曲裝置同樣地，在本發明，所謂減少彎曲裝置，係包含其引動器亦即油壓缸之裝置的總稱。但是，本發明為了將說明簡單化，所謂減少彎曲裝置，係只要未特別預先告知，係指其引動器亦即油壓缸。Similarly to the addition of the bending device, in the present invention, the reduction bending device is a general term for a device including a hydraulic cylinder which is an actuator. However, in order to simplify the description of the present invention, the reduction bending means is a hydraulic cylinder which is an actuator, unless otherwise specified.
(4)如(1)至(3)中任一項所述之金屬板材之輥軋機，其中在下操作輥負載減少彎曲力之油壓缸，係配備在位於下增強輥軸承座或前述突出塊的下方之第2突出塊(例如第4圖的5-3、5-4)。(4) The rolling mill for sheet metal according to any one of (1) to (3), wherein the hydraulic cylinder for reducing the bending force at the lower operation roller is provided in the lower reinforcing roller bearing housing or the aforementioned protruding block The second protruding block below (for example, 5-3, 5-4 in Fig. 4).
(5)一種金屬板材之輥軋方法，其係使用前述(3)所述之金屬板材的輥軋機進行之金屬板材的輥軋方法，其特徵為在輥軋開始前，使增加彎曲力及減少彎曲力的雙方作用，並使合力形式之相當於輥平衡力之輥彎曲力作用於操作輥軸承座。(5) A method for rolling a metal sheet, which is a method for rolling a sheet metal using a roll mill of the metal sheet according to (3) above, which is characterized in that the bending force is increased and reduced before the start of rolling Both sides of the bending force act, and the bending force of the resultant force in the form of the roller balancing force acts on the operating roller bearing housing.
隨後，邊使減少彎曲力以成為預定的輥軋中減少彎曲力的方式變化、邊以減少彎曲力與增加彎曲力的合力係維持輥平衡力的方式使增加彎曲力變化。若是從最初係以將減少彎曲力設為預定的輥軋中減少彎曲力，且減少彎曲力與增加彎曲力的合力係成為輥平衡力之方式使增加彎曲力作用於操作輥軸承座時，該步驟係能夠省略。Subsequently, the bending force is increased in such a manner that the bending force is reduced to become a mode in which the bending force is reduced in the predetermined rolling, and the resultant of reducing the bending force and increasing the bending force is to maintain the balance of the roller. If the bending force is reduced from the initial setting to reduce the bending force to a predetermined rolling, and the combined force of reducing the bending force and increasing the bending force is the method of balancing the bending force, the bending force is applied to the operating roller bearing housing. The steps can be omitted.
隨後，輥軋開始時，係邊繼續控制使減少彎曲力保持前述預定的輥軋中減少彎曲力、邊使增加彎曲力變化，並使合力形式之預定的輥軋中操作輥彎曲力作用於操作輥軸承座之狀態。Subsequently, at the start of the rolling, the edge is continuously controlled so that the bending force is reduced to maintain the bending force in the predetermined rolling, and the bending force is increased, and the bending force of the operating roller in the predetermined rolling in the form of the resultant force acts on the operation. The state of the roller bearing housing.
輥軋中係以維持前述預定的輥軋中操作輥彎曲力的方式進行輥軋。In the rolling, rolling is performed so as to maintain the bending force of the operation roller in the predetermined rolling.
隨後，在輥軋結束時，使增加彎曲力變化，並使與減少彎曲力的合力形式之相當於輥平衡力之輥彎曲力作用於操作輥軸承座，且在該狀態結束金屬板材的輥軋。Subsequently, at the end of the rolling, the bending force is increased, and the bending force corresponding to the roller balancing force in the form of a resultant force which reduces the bending force is applied to the operating roller bearing housing, and the rolling of the metal sheet is ended in this state. .
隨後，以維持作為前述合力的輥平衡力之方式，使減少彎曲力與增加彎曲力減少。若是以使減少彎曲力維持預定的輥軋中減少彎曲力之方式進行，且減少彎曲力與增加彎曲力的合力係成為輥平衡力之方式使增加彎曲力作用於操作輥軸承座時，該步驟亦能夠省略。Subsequently, in order to maintain the balance force of the roller as the aforementioned resultant force, the reduction of the bending force and the increase of the bending force are reduced. This step is carried out in such a manner that the bending force is reduced to maintain the bending force in the predetermined rolling, and the combined force of reducing the bending force and increasing the bending force is a method of balancing the bending force to increase the bending force acting on the operating roller bearing housing. Can also be omitted.
(6)如(5)所述之金屬板材之輥軋方法，其中測定產生減少彎曲力之油壓缸內或連接該油壓缸之油壓配管內的油壓，並基於該測定值，以合力形式而作用於操作輥軸承座之輥彎曲力係成為預定值的方式來控制增加彎曲力。(6) The method for rolling a metal sheet according to (5), wherein the oil pressure in the hydraulic cylinder that generates the bending force or the hydraulic piping connected to the hydraulic cylinder is measured, and based on the measured value, In the resultant form, the bending force of the roller acting on the operating roller bearing housing is a predetermined value to control the increase of the bending force.
本發明之輥軋機係如第1圖所表示，係將在上操作輥1-1的主體所負載的輥軋方向力，藉由上操作輥軸承座3-1與比突出塊5-2上方的機架窗的接觸面支撐之構造，因此，能夠得到大的輥開度，同時亦能夠得到強力的輥彎曲力。The rolling mill of the present invention is shown in Fig. 1 and is a rolling direction force applied to the main body of the upper operating roller 1-1 by the upper operating roller bearing housing 3-1 and the upper projection block 5-2. The structure of the contact surface of the frame window is supported, so that a large roller opening degree can be obtained and a strong roller bending force can be obtained.
而且，每次操作輥重組操作時，不必將增加彎曲裝置的油壓配管裝卸。因此，能夠透過固定油壓配管而將各自的油壓控制閥連接至增加彎曲裝置，能夠採用用以控制高應答油壓之伺服閥，而且能夠作為高應答性的增加彎曲裝置。Moreover, it is not necessary to attach or detach the hydraulic piping that increases the bending device each time the roller recombination operation is performed. Therefore, it is possible to connect the respective hydraulic control valves to the increased bending device through the fixed hydraulic piping, and it is possible to employ a servo valve for controlling the high response hydraulic pressure, and it is also possible to increase the bending device as a high responsiveness.
本發明之輥軋方法係即便不得不配備低應答性的減少彎曲裝置之情況，高應答性的增加彎曲裝置會補償該情況而能夠賦予高應答性且強力的板凸度、形狀控制功能。In the rolling method of the present invention, even if it is necessary to provide a low-reliability reduction bending device, the high-sensitivity increase bending device compensates for this and can provide a highly responsive and strong plate crown and shape control function.
因此，即便對於輥軋材入側板厚和輥軋材溫度等在輥軋中產生變動之干擾，亦能夠製造完成良好的板凸度、形狀，且能夠大幅度地改善製品品質及產率。Therefore, even if there is a disturbance in the rolling in the side thickness of the rolled material and the temperature of the rolled material, it is possible to manufacture a good plate crown and shape, and it is possible to greatly improve the quality and productivity of the product.
第1圖係表示本發明之輥軋機的構造的一個例子之側面圖。Fig. 1 is a side view showing an example of the structure of a rolling mill of the present invention.
第2圖係表示上下的增加彎曲裝置的配置例之透視平面圖。Fig. 2 is a perspective plan view showing an arrangement example of the upper and lower increasing bending devices.
第3圖係表示上下的增加彎曲裝置的配置例之透視平面圖。Fig. 3 is a perspective plan view showing an arrangement example of the upper and lower increasing bending means.
第4圖係表示本發明之輥軋機的構造的另外一個例子之側面圖。Fig. 4 is a side view showing another example of the structure of the rolling mill of the present invention.
第5圖係表示本發明之輥軋方法的操作流程的一個例子之圖。Fig. 5 is a view showing an example of the operation flow of the rolling method of the present invention.
第6圖係表示伴隨第5圖的操作流程之輥彎曲力等的時間系列變化之圖。Fig. 6 is a view showing a time series change of the roll bending force or the like accompanying the operation flow of Fig. 5.
第7圖係表示減少彎曲裝置的應答性為低的情況之輥彎曲力等的時間系列變化之圖。Fig. 7 is a view showing a time series change such as a roll bending force in a case where the responsiveness of the bending device is reduced.
第8圖係表示本發明之輥軋方法的操作流程的另外一個例子之圖。Fig. 8 is a view showing another example of the operation flow of the rolling method of the present invention.
第9圖係表示伴隨第8圖的操作流程之輥彎曲力等的時間系列變化之圖。Fig. 9 is a view showing a time series change such as a roll bending force accompanying the operation flow of Fig. 8.
第10圖係表示先前技術之輥軋機的構造之側面圖。Figure 10 is a side view showing the construction of a prior art rolling mill.
第11圖係表示先前技術之輥軋機的構造之側面圖。Figure 11 is a side view showing the construction of a prior art rolling mill.
第12圖係表示先前技術之輥軋機的構造之側面圖。Figure 12 is a side elevational view showing the construction of a prior art rolling mill.
第13圖係表示先前技術之輥軋機的構造之側面圖。Figure 13 is a side view showing the construction of a prior art rolling mill.
第14圖係表示先前技術之輥軋機的構造之側面圖。Figure 14 is a side view showing the construction of a prior art rolling mill.
以下，參照第1～13圖，來說明本發明之輥軋機及使用該輥軋機之輥軋方法。Hereinafter, a rolling mill of the present invention and a rolling method using the same will be described with reference to Figs. 1 to 13 .
第1圖係表示本發明之輥軋機的構造的一個例子之側面圖。如該圖所表示，本發明之輥軋機，係具備上下一對操作輥1-12及將該等各自支撐的上下一對增強輥2-1、2-2之輥軋機。Fig. 1 is a side view showing an example of the structure of a rolling mill of the present invention. As shown in the figure, the rolling mill of the present invention includes a pair of upper and lower operation rolls 1-12 and a rolling mill for supporting the upper and lower pair of reinforcing rolls 2-1 and 2-2.
而且，本發明之輥軋機係將在上操作輥1-1負載增加彎曲力之上增加彎曲裝置6-1、6-2、及在下操作輥1-2負載增加彎曲力之下增加彎曲裝置6-3、6-4配備在往機架9的內側突出的突出塊5-1、5-2。Moreover, the rolling mill of the present invention increases the bending means 6-1, 6-2 above the upper operating roller 1-1 load increasing bending force, and increases the bending means 6 under the lower operating roller 1-2 load increasing bending force. -3, 6-4 are provided with protruding blocks 5-1, 5-2 protruding toward the inside of the frame 9.
就該點而言，係與第13圖所表示之先前的輥軋機相同。但是，本發明之輥軋機係進行徹底的重新思考，來解決第13圖所表示之先前的輥軋機的問題點。亦即，從輥軋機的構造設計之觀點、特別是從得到大的輥開度之觀點，而將突出塊5-1、5-2的位置和上操作輥軸承座3-1的形狀等改變。In this regard, it is the same as the previous rolling mill shown in Fig. 13. However, the rolling mill of the present invention is thoroughly rethought to solve the problem of the prior rolling mill shown in Fig. 13. That is, the position of the protruding blocks 5-1, 5-2 and the shape of the upper operating roller bearing housing 3-1 are changed from the viewpoint of the structural design of the rolling mill, particularly from the viewpoint of obtaining a large roller opening degree. .
第13圖所表示之先前的輥軋機，係無法得到大的輥開度。該輥軋機係將突出塊5-1、5-2以相對於被輥軋材10的通過位置(通過線)為大致上下對稱的方式配置。因此，因為是藉由上操作輥軸承座3-1與突出塊5-2接觸的接觸面，來支撐作用於上操作輥1-1的偏移分力等的輥軋方向力、亦即支撐在上操作輥1-1的主體所負載來自被輥軋材10和上增強輥2-1等的輥軋方向力之構造。The previous roll mill shown in Fig. 13 was unable to obtain a large roll opening. In the rolling mill, the protruding blocks 5-1 and 5-2 are disposed so as to be substantially vertically symmetrical with respect to the passing position (passing line) of the rolled material 10. Therefore, the rolling direction force acting on the upper operating roller 1-1, such as the offset component force, is supported by the contact surface of the upper operating roller bearing housing 3-1 and the protruding block 5-2. The main body of the upper operation roller 1-1 is loaded with a structure in the rolling direction force from the rolled material 10 and the upper reinforcing roller 2-1.
該構造時，隨著增大輥開度，上操作輥1-1的旋轉中心位置(輥軋方向力的作用點)及上操作輥軸承座3-1係往上方移動，致使與支撐前述輥軋方向力之突出塊5-2的接觸面積係減少。因而，隨著增大輥開度，上操作輥軸承座3-1的姿勢變成不安定，而無法得到大的開度。In this configuration, as the roller opening degree is increased, the rotation center position of the upper operation roller 1-1 (the action point of the rolling direction force) and the upper operation roller bearing housing 3-1 are moved upward, causing the roller to be supported and supported. The contact area of the protruding force 5-2 of the rolling direction is reduced. Therefore, as the roll opening degree is increased, the posture of the upper operation roller bearing housing 3-1 becomes unstable, and a large opening degree cannot be obtained.
本發明之輥軋機係解決上述問題點。本發明之輥軋機係如第1圖所表示，將從機架9往其內側方向突出之突出塊5-1、5-2，配置在相對於通過線為往下側位移之位置。亦即，與如第13圖所表示之先前的輥軋機不同，係以相對於通過線為上下非對稱的方式來配置突出塊5-1、5-2。而且，上操作輥軸承座3-1並不是與突出塊5-2接觸來支撐輥軋力，而是設法使其與機架窗接觸來支撐輥軋力。The rolling mill of the present invention solves the above problems. As shown in Fig. 1, the rolling mill according to the present invention is disposed such that the protruding blocks 5-1 and 5-2 projecting from the frame 9 toward the inside thereof are disposed at positions shifted toward the lower side with respect to the passing line. That is, unlike the previous rolling mill shown in Fig. 13, the protruding blocks 5-1, 5-2 are arranged in such a manner as to be asymmetric with respect to the passing line. Moreover, the upper operating roller bearing housing 3-1 does not contact the protruding block 5-2 to support the rolling force, but seeks to contact the frame window to support the rolling force.
藉此，本發明之輥軋機係藉由上操作輥軸承座3-1與比突出塊5-2上方的機架窗12之接觸面，來支撐作用於上操作輥1-1的偏移分力等的輥軋方向力、亦即在上操作輥1-1的主體所負載來自被輥軋材10和上增強輥2-1等的輥軋方向力。Thereby, the rolling mill of the present invention supports the offset of the upper operating roller 1-1 by the contact surface of the upper operating roller bearing housing 3-1 with the frame window 12 above the protruding block 5-2. The rolling direction force of the force or the like, that is, the rolling direction force from the rolled material 10 and the upper reinforcing roller 2-1, etc., is applied to the main body of the upper operation roller 1-1.
如此的構造時，即便操作輥軋機的壓下裝置11而增大輥開度，上操作輥軸承座3-1與機架窗接觸的面積係完全無變化。因而，上操作輥軸承座3-1的姿勢係不管輥開度如何，亦能夠經常保持安定。In such a configuration, even if the rolling device 11 of the rolling mill is operated to increase the opening degree of the roller, the area in which the upper operating roller bearing housing 3-1 is in contact with the frame window is completely unchanged. Therefore, the posture of the upper operation roller bearing housing 3-1 can be constantly maintained regardless of the roller opening degree.
如第13圖所表示，在突出塊配備上下的增加彎曲裝置之輥軋機係眾所周知。但是，本發明之輥軋機，係對突出塊5-1、5-2的位置和上操作輥軸承座3-1的形狀進行徹底的思考，因為係藉由上操作輥軸承座3-1與突出塊5-2的上方的機架窗12之接觸面來支撐在上操作輥1-1的主體所負載的輥軋方向力之構造，所以能夠得到大的輥開度。As shown in Fig. 13, a rolling mill equipped with an upper and lower increasing bending device in the protruding block is well known. However, the rolling mill of the present invention thoroughly considers the position of the protruding blocks 5-1, 5-2 and the shape of the upper operating roller bearing housing 3-1 because the upper operating roller bearing housing 3-1 is used. The contact surface of the frame window 12 above the protruding block 5-2 supports the structure of the rolling direction force supported by the main body of the upper operation roller 1-1, so that a large roller opening degree can be obtained.
而且，本發明之輥軋機，係將在上操作輥1-1負載增加彎曲力之上增加彎曲裝置6-1、6-2、及在下操作輥1-2負載增加彎曲力之下增加彎曲裝置6-3、6-4，配置在往機架9的內側突出之突出塊5-1、5-2。因此，每次操作輥重組操作時，不必將增加彎曲裝置的油壓配管裝卸，而能夠作為應答性高的輥彎曲裝置。這是因為能夠透過經固定配管的油壓配管連接至各自的油壓控制閥，且能夠採用用以高應答油壓控制之伺服閥之緣故。Moreover, the rolling mill of the present invention increases the bending means 6-1, 6-2 above the upper operating roller 1-1 load increasing bending force, and increases the bending means under the lower operating roller 1-2 load increasing bending force 6-3, 6-4, the protruding blocks 5-1, 5-2 protruding toward the inner side of the frame 9. Therefore, each time the roller recombination operation is performed, it is not necessary to attach or detach the hydraulic piping which increases the bending apparatus, and it can be used as a roll bending apparatus with high responsiveness. This is because it is possible to connect to the respective oil pressure control valves through the hydraulic piping through the fixed piping, and it is possible to employ a servo valve for high response oil pressure control.
而且，在本發明之輥軋機，在下操作輥1-2的主體所負載的輥軋方向力，係藉由下操作輥軸承座3-2與突出塊5-2之接觸角來支撐。因此，在第1圖所表示之本發明的輥軋機，係大幅度地增加下操作輥軸承座3-2被突出塊5-1、5-2夾入的部分之高度。Further, in the rolling mill of the present invention, the rolling direction force supported by the main body of the lower operation roller 1-2 is supported by the contact angle of the lower operation roller bearing housing 3-2 and the protruding block 5-2. Therefore, in the rolling mill of the present invention shown in Fig. 1, the height of the portion where the lower operating roller chock 3-2 is sandwiched by the protruding blocks 5-1, 5-2 is greatly increased.
又，因為輥開度係主要是藉由使上操作輥軸承座上下移動來調整，下操作輥軸承座的上下移動量係較小。因此，隨著輥開度的增大，下操作輥軸承座的姿勢不會變為不安定。Further, since the roller opening degree is mainly adjusted by moving the upper operating roller bearing housing up and down, the amount of up and down movement of the lower operating roller bearing housing is small. Therefore, as the opening degree of the roller increases, the posture of the lower operating roller bearing housing does not become unstable.
第2圖係表示上下的增加彎曲裝置的配置例之剖面平面圖。亦即，突出塊5-1、5-2的通過線高度之剖面圖。Fig. 2 is a cross-sectional plan view showing an arrangement example of the upper and lower increasing bending devices. That is, a cross-sectional view of the height of the passing line of the protruding blocks 5-1, 5-2.
本發明之輥軋機，係以將上下的增加彎曲裝置在突出塊的剖面平面圖上互相錯開而配置為佳。例如，如第2圖所表示，將上增加彎曲裝置6-1、6-2與下增加彎曲裝置6-3、6-4，以成為往操作輥1-2的軸方向位移的位置關係之方式配置為佳。如此，上下的增加彎曲裝置係不會互相干擾。增大上增加彎曲裝置6-1、6-2的衝程時，能夠得到更大的輥開度。The rolling mill of the present invention is preferably arranged such that the upper and lower increasing bending means are shifted from each other in the cross-sectional plan view of the protruding block. For example, as shown in Fig. 2, the bending means 6-1, 6-2 and the lower bending means 6-3, 6-4 are added to the positional relationship of the displacement of the operating roller 1-2 in the axial direction. The mode configuration is better. Thus, the upper and lower increasing bending devices do not interfere with each other. When the stroke of the bending devices 6-1, 6-2 is increased, a larger roller opening degree can be obtained.
而且，在第2圖，下增加彎曲裝置6-3、6-4係將入側、出側各自油壓缸設為2支。但是將油壓缸設為1支且以不與上增加彎曲裝置6-1、6-2產生干擾的方式配置在操作輥1-2的軸方向不同位置時，亦能夠得到同樣的效果。Further, in the second drawing, the bending devices 6-3 and 6-4 are added, and the hydraulic cylinders on the inlet side and the outlet side are set to two. However, the same effect can be obtained when the hydraulic cylinder is provided in one position and is disposed at a different position in the axial direction of the operation roller 1-2 so as not to interfere with the upper bending devices 6-1 and 6-2.
第3圖亦表示上下的增加彎曲裝置的配置例之剖面平面圖。亦即，突出塊5-1、5-2的通過線高度之剖面圖。如該圖所表示，將上增加彎曲裝置6-1、6-2與下增加彎曲裝置6-3、6-4，以成為往輥軋方向位移的位置關係亦佳。如此的配置，上下的增加彎曲裝置亦不會互相干擾。增大上增加彎曲裝置6-1、6-2的衝程時，能夠得到更大的輥開度。Fig. 3 is also a cross-sectional plan view showing an arrangement example of the upper and lower increasing bending means. That is, a cross-sectional view of the height of the passing line of the protruding blocks 5-1, 5-2. As shown in the figure, the positional relationship in which the bending means 6-1, 6-2 and the lower bending means 6-3, 6-4 are increased to be displaced in the rolling direction is also preferable. With such a configuration, the upper and lower added bending devices do not interfere with each other. When the stroke of the bending devices 6-1, 6-2 is increased, a larger roller opening degree can be obtained.
至此，係主要從解決課題之一亦即得到大的輥開度之觀點，說明本發明之輥軋機的構造。其次，將說明依照該構造，能夠容易地達成另一解決課題亦即賦予強力的輥彎曲力。Heretofore, the structure of the rolling mill of the present invention has been described mainly from the viewpoint of obtaining a large roll opening degree, which is one of the solutions. Next, according to this configuration, it is possible to easily achieve another problem, that is, to impart a strong roller bending force.
第10圖、第11圖係任一者均表示先前技術之輥軋機，任一輥軋機均能夠得到大的輥開度。Each of Figs. 10 and 11 shows a prior art rolling mill, and any of the rolling mills can obtain a large roll opening.
但是，該等先前的輥軋機係無法賦予強力的輥彎曲力。這是因為在從上增強輥軸承座4-1往下方突出的臂部，組入上增加彎曲裝置6-1、6-2，而無法配置大容量及大衝程的上增加彎曲裝置6-1、6-2之緣故。又，因為該等輥軋機係從上增強輥軸承座將臂部突出，所以上減少彎曲裝置的設置空間係靠近輥的軸心。因此，因為與上增強輥的軸承產生干擾，所以無法配置大容量的上減少彎曲裝置7-1、7-2。However, these prior rolling mills were unable to impart a strong roll bending force. This is because the bending device 6-1, 6-2 is added to the arm portion that protrudes downward from the upper reinforcing roller bearing housing 4-1, and the upper bending device 6-1 cannot be disposed with a large capacity and a large stroke. For the sake of 6-2. Further, since the rolling machines protrude from the upper reinforcing roller bearing housing, the installation space for reducing the bending device is close to the axial center of the roller. Therefore, since the interference with the bearing of the upper reinforcing roller is disturbed, it is impossible to arrange the large-capacity upper reduction bending devices 7-1, 7-2.
另一方面，如第1圖所表示，本發明之輥軋機係能夠在從輥軋機的機架9往其內側方向突出的突出塊5-1、5-2，配置大容量、大衝程的上增加彎曲裝置6-1、6-2。On the other hand, as shown in Fig. 1, the rolling mill of the present invention is capable of arranging a large-capacity, large-stroke on the protruding blocks 5-1 and 5-2 which protrude from the frame 9 of the rolling mill toward the inner side thereof. The bending devices 6-1, 6-2 are added.
又，本發明之輥軋機，在上增強輥軸承座4-1係不具備如第10圖、第11圖所表示的臂部。因此，在上增強輥軸承座4-1之不會與上增強輥的軸承產生干擾的位置，能夠配置大容量的上減少彎曲裝置7-1、7-2。藉此，能夠在上操作輥1-1負載大的減少彎曲力。Further, in the roll mill of the present invention, the upper reinforcing roller bearing housing 4-1 does not have the arm portions as shown in Figs. 10 and 11 . Therefore, in the position where the upper reinforcing roller chock 4-1 does not interfere with the bearing of the upper reinforcing roller, the large-capacity upper reducing bending devices 7-1, 7-2 can be disposed. Thereby, it is possible to reduce the bending force with a large load on the upper operation roller 1-1.
亦即，對突出塊5-1、5-2的位置和上操作輥軸承座3-1的形狀進行徹底的思考，使用藉由上操作輥軸承座3-1與突出塊5-2的上方的機架窗12之接觸面來支撐在上操作輥1-1的主體所負載的輥軋方向力之構造之本發明的輥軋機時，能夠得到大的輥開度，同時亦能夠賦予強力的輥彎曲力。That is, the position of the protruding blocks 5-1, 5-2 and the shape of the upper operating roller bearing housing 3-1 are thoroughly considered, using the upper operating roller bearing housing 3-1 and the protruding block 5-2. When the contact surface of the frame window 12 supports the rolling mill of the present invention in the structure of the rolling direction force supported by the main body of the upper operation roller 1-1, a large roller opening degree can be obtained, and at the same time, a strong force can be imparted. Roll bending force.
又，每次操作輥重組操作時，不必將增加彎曲裝置的油壓配管裝卸。因此，在各自的增加彎曲裝置6-1～6-4，係能夠透過固定油壓配管而連接至各自的油壓控制閥，能夠採用用以控制高應答油壓之伺服閥。因而，能夠作為高應答性的增加彎曲裝置。Further, it is not necessary to attach or detach the hydraulic piping for increasing the bending device each time the roller recombination operation is performed. Therefore, the respective bending devices 6-1 to 6-4 can be connected to the respective hydraulic pressure control valves through the fixed hydraulic pressure piping, and a servo valve for controlling the high response hydraulic pressure can be employed. Therefore, it is possible to increase the bending device as a high responsiveness.
第4圖係表示本發明之輥軋機的構造的另外一個例子之側面圖。第4圖所表示的輥軋機，上輥系統係與第1圖同樣的構造，但是下輥系統係不同構造。第1圖所表示的輥軋機，係將在下操作輥負載減少彎曲力之下減少彎曲裝置7-3、7-4配備在下增強輥軸承座4-2。對此，如第4圖所表示的輥軋機，係將下減少彎曲裝置7-3、7-4配備在位於突出塊5-1、5-2下方之專用的突出塊5-3、5-4。Fig. 4 is a side view showing another example of the structure of the rolling mill of the present invention. In the rolling mill shown in Fig. 4, the upper roller system has the same structure as that of Fig. 1, but the lower roller system has a different structure. The rolling mill shown in Fig. 1 is provided with a lower bending device 7-3, 7-4 for the lower reinforcing roller bearing housing 4-2 under the lower operating roller load reducing bending force. In this regard, the rolling mill shown in Fig. 4 is provided with the lower reduction bending devices 7-3, 7-4 provided in the dedicated protruding blocks 5-3, 5 below the protruding blocks 5-1, 5-2. 4.
但是，如第1圖所表示的輥軋機，將下減少彎曲裝置7-3、7-4配備在下增強輥軸承座4-2時，在將下增強輥2-2重組時，必須將減少彎曲裝置的油壓配管裝卸。亦即，在裝卸時微小的異物混合油壓配管內之可能性高。However, as in the rolling mill shown in Fig. 1, when the lower reduction bending means 7-3, 7-4 are provided in the lower reinforcing roll chock 4-2, when the lower reinforcing roll 2-2 is recombined, it is necessary to reduce the bending. The hydraulic piping of the device is loaded and unloaded. In other words, it is highly likely that a small foreign matter is mixed in the hydraulic piping during loading and unloading.
因此，通常採用用以控制高應答油壓之伺服閥係困難的，而且亦有必須一部分採用撓性配管之情況。Therefore, it is generally difficult to use a servo valve system for controlling a high response oil pressure, and it is also necessary to use a flexible pipe.
因而，相較於採用固定配管和伺服閥之情況，輥彎曲裝置的應答性係不得不降低。Therefore, the responsiveness of the roll bending device has to be reduced as compared with the case of using a fixed pipe and a servo valve.
對此，使用第4圖所表示輥軋機時，能夠解決在將下增強輥2-2重組時所產生的上述問題。因為配備於專用的突出塊之下減少彎曲裝置的油壓配管，係能夠採用用以控制高應答油壓之伺服閥，且能夠不使用撓性配管。因此，下增強輥2-2的重組變為容易，同時能夠作為高應答性的輥彎曲裝置。On the other hand, when the rolling mill shown in Fig. 4 is used, the above-described problem caused when the lower reinforcing roller 2-2 is reassembled can be solved. Since the hydraulic piping for reducing the bending device is provided under the dedicated protruding block, a servo valve for controlling the high response hydraulic pressure can be employed, and the flexible piping can be omitted. Therefore, the recombination of the lower reinforcing roller 2-2 becomes easy, and at the same time, it can be used as a highly responsive roll bending device.
其次，說明本發明之輥軋方法。如第1圖、第4圖所表示，在上增強輥軸承座4-1配備上減少彎曲裝置7-1、7-2的情況，在將上增強輥2-1重組時，必須將減少彎曲裝置的油壓配管裝卸，在裝卸時，微小異物混入油壓配管內之可能性高。Next, the rolling method of the present invention will be described. As shown in Fig. 1 and Fig. 4, in the case where the upper reinforcing roller bearing housing 4-1 is equipped with the bending reducing device 7-1, 7-2, when the upper reinforcing roller 2-1 is recombined, it is necessary to reduce the bending. When the hydraulic piping of the apparatus is attached and detached, there is a high possibility that minute foreign matter will be mixed into the hydraulic piping during loading and unloading.
因此，通常採用用以控制高應答油壓之伺服閥係比較困難的。又，為了使配管裝卸容易，必須透過柔軟構造且裝卸自如的油壓配管(撓性配管等)連接至各自的油壓控制閥。採用撓性配管等的柔軟構造且裝卸自如的油壓配管時，因為係柔軟構造的緣故，亦有將油壓的變動吸收或緩和的情形。Therefore, it is often difficult to use a servo valve system for controlling high response oil pressure. Moreover, in order to facilitate the attachment and detachment of the piping, it is necessary to connect the hydraulic pressure control valves (flexible pipes, etc.) that are flexible and detachable to each of the hydraulic control valves. When a hydraulic pipe such as a flexible pipe or the like is used, and the hydraulic pipe is detachably attached, the fluctuation of the hydraulic pressure may be absorbed or alleviated due to the soft structure.
因此，相較於採用固定配管和伺服閥之情況，將上減少彎曲裝置7-1、7-2，配備在上增強輥軸承座4-1之情況，輥彎曲裝置的應答性係不得不降低。Therefore, compared with the case where the fixed piping and the servo valve are used, the upper bending-reducing device 7-1, 7-2 is provided in the case of the upper reinforcing roller bearing housing 4-1, and the responsiveness of the roller bending device has to be lowered. .
但是，在無負載輥軋荷重之空轉(idle)時，係不能夠負載減少彎曲力。因此，應用減少彎曲力時，係從得到輥平衡之空轉狀態至輥軋開始，迅速地設定減少彎曲力，並且在輥軋結束時，有必要迅速地恢復輥平衡狀態。However, in the idle of the unloaded rolling load, the load cannot be reduced by the load. Therefore, when the bending force is applied, the bending force is rapidly set from the idling state in which the roller balance is obtained to the start of the rolling, and it is necessary to quickly restore the roller balance state at the end of the rolling.
因此，藉由應答性差的減少彎曲裝置控制輥彎曲力的變更來實施時，在輥軋材的前尾端未負載預定的減少彎曲力，致使形狀不良部有變長之可能性。Therefore, when the bending device controls the change of the bending force of the roller by the reduction of the responsiveness, the bending force is not applied to the front end of the rolled material, and the shape defect portion may become long.
本發明之輥軋方法係解決上述課題者。亦即一種使用將上減少彎曲裝置7-1、7-2配備於上增強輥軸承座4-1而成之本發明的輥軋機之輥軋方法，其中在該輥軋機，能夠產生之解決上述課題之輥軋方法。The rolling method of the present invention solves the above problems. That is, a rolling method using the rolling mill of the present invention in which the upper bending device 7-1, 7-2 is provided on the upper reinforcing roller bearing block 4-1, wherein the rolling mill can be produced to solve the above The rolling method of the subject.
如前述，在將上減少彎曲裝置7-1、7-2配備於上增強輥軸承座4-1而成之輥軋機，係減少彎曲裝置的應答性會有變差的情況。As described above, the rolling mill in which the upper bending device 7-1 and 7-2 are provided in the upper reinforcing roller bearing housing 4-1 reduces the responsiveness of the bending device.
但是，因為本發明之輥軋機係將上增加彎曲裝置6-1、6-2配備於從機架9往該內側方向突出的突出塊5-1、5-2之構造，所以能夠作為大容量、大衝程的上增加彎曲裝置6-1、6-2。However, since the rolling mill of the present invention has the structure in which the upper bending device 6-1, 6-2 is provided on the protruding blocks 5-1, 5-2 protruding from the frame 9 toward the inner side, it can be used as a large capacity. The bending devices 6-1, 6-2 are added to the large stroke.
而且，因為每次輥重組操作時，不必將增加彎曲裝置的油壓配管裝卸，能夠採用固定油壓配管和伺服閥，藉此，能夠作為高應答性的增加彎曲裝置。Further, since it is not necessary to attach or detach the hydraulic piping for increasing the bending device every time the roller recombination operation is performed, the hydraulic pressure piping and the servo valve can be used, whereby the bending device can be increased as a highly responsive.
本發明之輥軋方法係為了板凸度、形狀控制之目的而使減少彎曲力作用於操作輥時，將輥軋開始時及輥軋結束時之輥彎曲力的變更，使用高應答性的增加彎曲裝置來進行，能夠補償減少彎曲裝置的應答性。In the rolling method of the present invention, when the bending force is applied to the operation roller for the purpose of plate crowning and shape control, the change of the roll bending force at the start of the rolling and at the end of the rolling is used, and the increase in the responsiveness is used. The bending device is performed to compensate for the responsiveness of the bending device.
第5圖係表示本發明之輥軋方法的操作流程的一個例子之圖。亦即，係表示高應答性的增加彎曲裝置及應答性比其稍低的減少彎曲裝置之操作流程之圖。Fig. 5 is a view showing an example of the operation flow of the rolling method of the present invention. That is, it is a diagram showing an increase in the responsiveness of the bending device and a responsiveness of the bending device which is slightly lower than that of the bending device.
又，在第6圖係表示在該輥軋方法之對於一支輥軋材的輥彎曲力等的時間系列變化。第6圖係從上面起，表示輥軋荷重、增加彎曲裝置的輸出功率、減少彎曲裝置的輸出功率、該等的合力亦即操作輥彎曲力的時間系列變化。以下，基於第5圖、第6圖進行說明。Further, Fig. 6 shows a time series change of the roll bending force or the like for one of the rolled materials in the rolling method. Fig. 6 is a time series change from the top, showing the rolling load, increasing the output of the bending device, reducing the output of the bending device, and the resultant force, that is, the bending force of the operating roller. Hereinafter, description will be made based on the fifth and sixth figures.
首先，在輥軋開始前，運算、輸出對應隨後進行輥軋之輥軋材之輥軋中操作輥彎曲力的設定值FR 。在此，FR 為負值，亦即係與減少彎曲力運算而得到者。而且，本發明係將增加彎曲力(增加方向(將輥打開方向)的力)設為正值，並將減少彎曲力(減少方向(壓住上下操作輥之方向)的力)設為正值。First, before the start of the rolling, the set value F R of the bending force of the operating roller in the rolling of the rolled material which is subsequently rolled is calculated and output. Here, F R is a negative value, that is, it is obtained by reducing the bending force calculation. Further, the present invention sets the bending force (the force for increasing the direction (the direction in which the roller is opened) to a positive value, and sets the bending force (the force for reducing the direction (the direction of pressing the upper and lower operation rollers) to a positive value). .
輥軋開始前係使增加彎曲力與減少彎曲力的雙方作用，並使合力形式之相當於輥平衡力(FB )之減少側的輥彎曲力作用於操作輥軸承座。Before the start of rolling, both the bending force and the bending force are increased, and the bending force of the resultant side in the form of the reduction of the roller balance force (F B ) acts on the operating roller bearing housing.
亦即，在輥軋前的空轉(idle)時，係將增加彎曲裝置輸出功率設為IB (>0)、將減少彎曲裝置輸出功率設為DB (<0)、且將IB +DB 設為輥平衡力FS (>0)而作用。That is, in the idle before rolling, the output of the bending device is increased to I B (>0), the output of the bending device is reduced to D B (<0), and I B + D B acts as a roller balance force F S (>0).
輥平衡力FB ，其能夠作為即便在空轉狀態被電動機驅動的操作輥與從動的增強輥係不會滑動的力來決定。此時，DB 係設定為減少彎曲裝置的引動器係不會從操作輥軸承座離開的程度之最小的油壓即可。The roller balance force F B can be determined as a force that does not slip even if the operation roller driven by the motor in the idling state does not slide. At this time, the D B system is set to reduce the minimum hydraulic pressure that the actuator of the bending device does not leave the operating roller bearing housing.
然後，在輥軋開始前之某一時序(時間軸上的a點)，依照DS =FR -IR 來運算為了使輥軋中操作輥彎曲力FR 作用之充分的預定輥軋中減少彎曲裝置輸出功率DS 。然後，以輥平衡力(FB )成為一定的方式將DS 及IS 同時輸出。在此，IR 係輥軋中的增加彎曲裝置輸出功率，能夠以DS 的絕對值不會變為過大的方式來預先決定接近能夠控制的最小值之值。IS 係IS +DS =FS 之增加彎曲裝置輸出功率。因此，在設定時序，合力形式之操作輥彎曲力係仍舊是FS 而實質上無變化。Then, at a certain timing (point a on the time axis) before the start of rolling, a sufficient predetermined rolling in order to effect the bending force F R of the operating roller in the rolling is calculated in accordance with D S = F R - I R Reduce bending device output power D S . Then, D S and I S are simultaneously output in such a manner that the roller balance force (F B ) becomes constant. Here, in the I R system rolling, the bending device output power is increased, and the value close to the controllable minimum value can be determined in advance so that the absolute value of D S does not become excessive. The I S system I S + D S = F S increases the bending device output power. Therefore, at the set timing, the operating roller bending force in the resultant form is still F S and substantially unchanged.
其次，在輥軋開始時，減少彎曲力係邊保持一定值、邊使增加彎曲力降低，且使合力形式之預定的輥軋中操作輥彎曲力FR 作用於操作輥軸承座。Next, at the start of the rolling, the bending force is reduced while maintaining a certain value, and the bending force is increased, and the bending force F R of the operation roller in the predetermined rolling in the resultant form is applied to the operating roller bearing housing.
亦即，在輥軋開始時(時間軸上的b點)，將增加彎曲裝置輸出功率從Is變更為IR 。藉此，應答慢的減少彎曲裝置輸出功率係仍舊是DS ，藉由控制應答快的增加彎曲裝置，而能夠將合力形式之操作輥彎曲力從輥平衡力FB (>0)迅速地切換至輥軋中操作輥彎曲力FR (<0)。That is, at the start of rolling (point b on the time axis), the bending device output power is increased from Is to I R . Thereby, the slow response of the bending device reduces the output power of the bending device, which is still D S , and can quickly switch the bending force of the operating roller in the resultant force form from the roller balancing force F B (>0) by increasing the bending device by controlling the response quickly. The roll bending force F R (<0) is applied to the roll.
又，所謂輥軋開始時(b)，係指開始輥軋之時點，其檢測係例如使用輥軋機的輥軋荷重測定用測力器(load cell)來檢測荷重，並以設為該檢測出的荷重為超過預測輥軋荷重的30%時之方法來決定即可。In addition, the start of the rolling (b) refers to the point at which the rolling is started, and the detection is performed by, for example, using a load cell for measuring the rolling load of the rolling mill, and detecting the load. The load is determined by a method that exceeds 30% of the predicted rolling load.
而且，在輥軋結束時，為了將輥彎曲力恢復至輥軋開始前的狀態，使相當於合力形式之輥平衡力(FB )之輥彎曲力作用於操作輥軸承座，並結束輥軋。Further, at the end of the rolling, in order to restore the roll bending force to the state before the start of the rolling, the roll bending force corresponding to the roll balance force (F B ) in the resultant force form is applied to the operation roll chock, and the rolling is finished. .
亦即，在輥軋結束時(時間軸上的c點)，減少彎曲裝置輸出功率係仍舊是DS 並使應答快的減少彎曲裝置輸出功率從IR 變化成為IS 。藉此，能夠將合力形式之操作輥彎曲力從輥軋中操作輥彎曲力(FR (<0))迅速地切換成為輥平衡力(FB (>0))。That is, at the end of the rolling (point c on the time axis), the reduction of the output power of the bending device is still D S and the response of the bending device is reduced from I R to I S . Thereby, the operating roller bending force in the resultant force form can be rapidly switched from the rolling roller bending force (F R (<0)) in the rolling to the roller balancing force (F B (>0)).
而且，所謂輥軋結束時(c)係指輥軋結束時點，其檢測係例如使用輥軋機的輥軋荷重測定用測力傳感器來檢測荷重，並以設為該檢測出的荷重為低於預測輥軋荷重的50%時之方法來決定即可。In addition, the term "c) at the end of the rolling is the point at which the rolling is completed, and the detection is performed by, for example, using a load cell for measuring the rolling load of the rolling mill to detect the load, and the load is determined to be lower than the predicted load. The method of rolling the load of 50% can be determined.
而且，將從輥軋結束時(c)例如經過1～3秒的點點，設為操作完成時序(時間軸上的c點)，在該時序，將增加彎曲裝置輸出功率變更為IB ，且將減少彎曲裝置輸出功率變更為DB 。即便該變更，合力形式之操作輥彎曲力亦能夠大致維持為輥平衡力(FB )。Further, from the end of the rolling (c), for example, a point of 1 to 3 seconds is taken as an operation completion timing (point c on the time axis), and at this timing, the increase bending device output power is changed to I B . And the bending device output power is reduced to D B . Even with this change, the bending force of the operating roller in the resultant force can be maintained substantially at the roller balance force (F B ).
如第5圖、第6圖，本發明之輥軋方法係使用高應答性的增加彎曲裝置來進行變更輥軋開始及輥軋結束時的輥彎曲力。因此，即便在不得不配備應答性比較低的減少彎曲裝置之情況，因為高應答性的增加彎曲裝置會補償此情形，所以能夠賦予高應答且強力的板凸度、形狀控制功能。As shown in Fig. 5 and Fig. 6, the rolling method of the present invention uses a highly responsive bending device to change the roll bending force at the start of rolling and at the end of rolling. Therefore, even in the case where the bending device is required to be provided with a relatively low responsiveness, since the bending device compensates for the increase in the high responsiveness, it is possible to impart a high response and a strong plate crown and shape control function.
而且，即便在輥軋中由於各種因素(干擾)致使輥軋荷重變化的情況，藉由高應答的增加彎曲裝置，亦能夠以維持最適當的操作輥彎曲力之方式迅速地進行控制。此時，例如按照輥軋荷重的實測值來實施使輥軋中操作輥彎曲力變化之控制即可。Further, even if the rolling load is changed due to various factors (interference) during rolling, the bending device can be quickly controlled to maintain the optimum operating roller bending force by increasing the bending device with high response. At this time, for example, the control for changing the bending force of the operation roller during rolling may be performed in accordance with the measured value of the rolling load.
亦即，依照本發明之輥軋方法，即便對於輥軋材入側板厚度和輥軋材溫度等的等在輥軋中變動之干擾，亦能夠製造完成良好的板凸度、形狀，藉此，能夠改善製品品質及產率。In other words, according to the rolling method of the present invention, it is possible to manufacture a good plate crown and shape even if the rolling sheet enters the thickness of the side plate, the temperature of the rolled material, and the like, and the like. Can improve product quality and yield.
第7圖係減少彎曲裝置的應答性為低的情況(特別是具有當反作用力消失時壓力下降的油壓特性之情況)之輥彎曲力等的時間系列變化之圖。與第6圖同樣地，係表示隨著第5圖所表示之增加彎曲裝置及減少彎曲裝置的操作流程，伴隨著對一支輥軋材的輥軋操作之輥彎曲力等的時間系列變化。亦即，係表示相較於第5、6圖的情況，減少彎曲裝置的應答速度較慢的情況之例子。Fig. 7 is a view showing a time series change such as a roll bending force in which the responsiveness of the bending device is low (particularly, a case where the hydraulic pressure is lowered when the reaction force disappears). Similarly to Fig. 6, the operation flow of the bending device and the bending reduction device as shown in Fig. 5 is shown, and the time series such as the roll bending force for the rolling operation of one of the rolled materials is changed. That is, it shows an example in which the response speed of the bending device is slower than in the case of Figs. 5 and 6.
第7圖的情況，因為在時序b及c，高應答性的增加彎曲裝置的輸出功率係急遽地變化，應答性差的減少彎曲裝置的輸出功率產生變化。其結果，合力形式之操作輥彎曲力在時序b到達FR 係遲誤，致使在時序c到達FB 係遲誤。第8圖所表示的輥軋方法係解決該問題者。In the case of Fig. 7, in the timings b and c, the increase in the high responsiveness increases the output power of the bending device sharply, and the difference in the responsiveness decreases the output of the bending device. As a result, the operating roller bending force in the resultant form reaches the F R system delay at the timing b, causing the F B system to be delayed at the timing c. The rolling method shown in Fig. 8 solves this problem.
第8圖係表示具有高應答性的增加彎曲裝置及低減少彎曲裝置之情況的操作流程之圖。以下基於該圖進行說明。Fig. 8 is a view showing an operational flow of the case of increasing the bending device and the case of reducing the bending device with high responsiveness. The following description will be based on this figure.
第8圖所表示的輥軋方法，係使用設置於減少彎曲裝置之測力器經常測定減少彎曲力，或是連接該裝置之油壓配管內的油壓，並基於該測定值來控制增加彎曲裝置。亦即，輥軋前後係以操作輥彎曲力成為輥平衡力FB 的方式、在輥軋中係以操作輥彎曲力成為FR 的方式，按照減少彎曲力或減少彎曲裝置的油壓來控制增加彎曲裝置的輸出功率。又，此外的控制係與第5圖所表示的輥軋方法同樣。The rolling method shown in Fig. 8 is to measure the oil pressure in the hydraulic piping connected to the apparatus by using a force measuring device provided in the reduction bending apparatus, and to control the increase of the bending based on the measured value. Device. That is, before and after the rolling, the bending force of the operation roller becomes the balance force F B of the roller, and the bending force of the operation roller becomes F R during the rolling, and the bending force is reduced or the oil pressure of the bending device is reduced. Increase the output power of the bending device. Further, the other control system is the same as the rolling method shown in Fig. 5.
藉由第8圖所表示的輥軋方法進行輥軋時，如第9圖所表示，增加彎曲裝置會補償減少彎曲裝置之輸出功率的變動，而能夠使操作輥彎曲力為最適當，來實現高應答的控制。When the rolling is performed by the rolling method shown in Fig. 8, as shown in Fig. 9, the addition of the bending device compensates for the variation in the output power of the bending device, and the bending force of the operating roller is optimal. High response control.
又，即便不進行測定輥軋中的減少彎曲力和藉由測定油壓來進行反饋控制，藉由預先測定減少彎曲裝置之輸出功率的變動來設定補償其之增加彎曲裝置的輸出功率，亦能夠得到同樣的效果。Further, even if the bending force is reduced in the measurement of the rolling and the feedback control is performed by measuring the hydraulic pressure, the output of the bending device can be adjusted by reducing the fluctuation of the output of the bending device in advance, and the output of the bending device can be compensated. Get the same effect.
本發明係能夠利用在鋼板的輥軋、特別是將大開度設為必要之逆輥軋機等。In the present invention, it is possible to use a roll mill for a steel sheet, in particular, a reverse roll mill having a large opening degree.
1-1．．．上操作輥1-1. . . Upper operating roller
1-2．．．下操作輥1-2. . . Lower operating roller
2-1．．．上增強輥2-1. . . Upper reinforcing roller
2-2．．．下增強輥2-2. . . Lower reinforcing roller
3-1．．．上操作輥軸承座3-1. . . Upper operating roller bearing
3-2．．．下操作輥軸承座3-2. . . Lower operating roller bearing
4-1．．．上增強輥軸承座4-1. . . Upper reinforcing roller bearing
4-2．．．下增強輥軸承座4-2. . . Lower reinforcement roller bearing
5-1．．．入側突出塊5-1. . . Entry side protruding block
5-2．．．出側突出塊5-2. . . Outlet protruding block
5-3．．．入側下突出塊5-3. . . Entry side lower protruding block
5-4．．．出側下突出塊5-4. . . Outer side protruding block
6-1．．．入側上增加彎曲裝置6-1. . . Add bending device on the entry side
6-2．．．出側上增加彎曲裝置6-2. . . Add bending device on the exit side
6-3．．．入側下增加彎曲裝置6-3. . . Add bending device under the side
6-4．．．出側下增加彎曲裝置6-4. . . Add bending device under the side
7-1．．．入側上減少彎曲裝置7-1. . . Reduce bending device on the entry side
7-2．．．出側上減少彎曲裝置7-2. . . Reduce bending device on the exit side
7-3．．．入側下減少彎曲裝置7-3. . . Reduce the bending device under the side
7-4．．．出側下減少彎曲裝置7-4. . . Reduce the bending device
8-1．．．入側增強輥平衡裝置8-1. . . Inlet side reinforcing roller balancing device
8-2．．．出側增強輥平衡裝置8-2. . . Outside reinforcing roller balancing device
9．．．機架9. . . frame
10．．．被輥軋材10. . . Rolled material
11．．．壓下裝置11. . . Pressing device
12．．．機架窗12. . . Rack window
P．．．輥軋荷重P. . . Rolling load
a、b、c、d．．．時序a, b, c, d. . . Timing
IS 、IB 、IR ．．．增加彎曲裝置輸出功率I S , I B , I R . . . Increase bending device output power
DB 、DS ．．．減少彎曲裝置輸出功率D B , D S . . . Reduce bending device output power
FB ．．．輥平衡力F B . . . Roll balance
FR ．．．操作輥彎曲力F R . . . Operating roller bending force
第1圖係表示本發明之輥軋機的構造的一個例子之側面圖。Fig. 1 is a side view showing an example of the structure of a rolling mill of the present invention.
第2圖係表示上下的增加彎曲裝置的配置例之透視平面圖。Fig. 2 is a perspective plan view showing an arrangement example of the upper and lower increasing bending devices.
第3圖係表示上下的增加彎曲裝置的配置例之透視平面圖。Fig. 3 is a perspective plan view showing an arrangement example of the upper and lower increasing bending means.
第4圖係表示本發明之輥軋機的構造的另外一個例子之側面圖。Fig. 4 is a side view showing another example of the structure of the rolling mill of the present invention.
第5圖係表示本發明之輥軋方法的操作流程的一個例子之圖。Fig. 5 is a view showing an example of the operation flow of the rolling method of the present invention.
第6圖係表示伴隨第5圖的操作流程之輥彎曲力等的時間系列變化之圖。Fig. 6 is a view showing a time series change of the roll bending force or the like accompanying the operation flow of Fig. 5.
第7圖係表示減少彎曲裝置的應答性為低的情況之輥彎曲力等的時間系列變化之圖。Fig. 7 is a view showing a time series change such as a roll bending force in a case where the responsiveness of the bending device is reduced.
第8圖係表示本發明之輥軋方法的操作流程的另外一個例子之圖。Fig. 8 is a view showing another example of the operation flow of the rolling method of the present invention.
第9圖係表示伴隨第8圖的操作流程之輥彎曲力等的時間系列變化之圖。Fig. 9 is a view showing a time series change such as a roll bending force accompanying the operation flow of Fig. 8.
第10圖係表示先前技術之輥軋機的構造之側面圖。Figure 10 is a side view showing the construction of a prior art rolling mill.
第11圖係表示先前技術之輥軋機的構造之側面圖。Figure 11 is a side view showing the construction of a prior art rolling mill.
第12圖係表示先前技術之輥軋機的構造之側面圖。Figure 12 is a side elevational view showing the construction of a prior art rolling mill.
第13圖係表示先前技術之輥軋機的構造之側面圖。Figure 13 is a side view showing the construction of a prior art rolling mill.
第14圖係表示先前技術之輥軋機的構造之側面圖。Figure 14 is a side view showing the construction of a prior art rolling mill.
1-1．．．上操作輥1-1. . . Upper operating roller
1-2．．．下操作輥1-2. . . Lower operating roller
2-1．．．上增強輥2-1. . . Upper reinforcing roller
2-2．．．下增強輥2-2. . . Lower reinforcing roller
3-1．．．上操作輥軸承座3-1. . . Upper operating roller bearing
3-2．．．下操作輥軸承座3-2. . . Lower operating roller bearing
4-1．．．上增強輥軸承座4-1. . . Upper reinforcing roller bearing
4-2．．．下增強輥軸承座4-2. . . Lower reinforcement roller bearing
5-1．．．入側突出塊5-1. . . Entry side protruding block
5-2．．．出側突出塊5-2. . . Outlet protruding block
6-1．．．入側上增加彎曲裝置6-1. . . Add bending device on the entry side
6-2．．．出側上增加彎曲裝置6-2. . . Add bending device on the exit side
6-3．．．入側下增加彎曲裝置6-3. . . Add bending device under the side
6-4．．．出側下增加彎曲裝置6-4. . . Add bending device under the side
7-1．．．入側上減少彎曲裝置7-1. . . Reduce bending device on the entry side
7-2．．．出側上減少彎曲裝置7-2. . . Reduce bending device on the exit side
7-3．．．入側下減少彎曲裝置7-3. . . Reduce the bending device under the side
7-4．．．出側下減少彎曲裝置7-4. . . Reduce the bending device
8-1．．．入側增強輥平衡裝置8-1. . . Inlet side reinforcing roller balancing device
8-2．．．出側增強輥平衡裝置8-2. . . Outside reinforcing roller balancing device
9．．．機架9. . . frame
10．．．被輥軋材10. . . Rolled material
11．．．壓下裝置11. . . Pressing device
12．．．機架窗12. . . Rack window
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| JP5533754B2 (en) * | 2011-03-25 | 2014-06-25 | 新日鐵住金株式会社 | Tandem rolling equipment and hot rolling method for metal sheet |
| CN104923564B (en) * | 2014-03-21 | 2017-02-22 | 宝山钢铁股份有限公司 | Method capable of avoiding false alarm due to roll pullout in work roll shifting process |
| CN113950383B (en) * | 2019-10-25 | 2023-08-29 | 普锐特冶金技术日本有限公司 | rolling mill |
| JP6992032B2 (en) * | 2019-10-25 | 2022-01-13 | Ｐｒｉｍｅｔａｌｓ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｊａｐａｎ株式会社 | Rolling machine |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US3864955A (en) * | 1973-12-04 | 1975-02-11 | Blaw Knox Foundry Mill Machine | Rolling mill stand |
| JPS5942106A (en) * | 1982-09-01 | 1984-03-08 | Hitachi Ltd | Rolling mill |
| DE3601239A1 (en) * | 1986-01-17 | 1987-07-23 | Schloemann Siemag Ag | Bending device for the axially displaceable working rolls of a four-high stand |
| JPS62142403U (en) * | 1986-02-28 | 1987-09-08 | ||
| JPH0749124B2 (en) * | 1986-03-20 | 1995-05-31 | 株式会社日立製作所 | Roll shift rolling mill |
| DE3628733A1 (en) * | 1986-08-23 | 1988-02-25 | Schloemann Siemag Ag | DEVICE FOR AXIAL POSITIONING OF THE ROLLS OF ROLLING MILLS FOR THE PRODUCTION OF PROFILE STEEL |
| JPS63199006A (en) * | 1987-02-12 | 1988-08-17 | Nippon Steel Corp | Work roll bending method for rolling mill |
| JPH02280910A (en) * | 1989-04-20 | 1990-11-16 | Kawasaki Steel Corp | Rolling machine |
| JPH084812B2 (en) | 1990-06-15 | 1996-01-24 | 株式会社日立製作所 | Rolling mill |
| JPH0687011A (en) | 1992-09-09 | 1994-03-29 | Kawasaki Steel Corp | Method for rolling thick plate |
| JP3040037B2 (en) | 1992-12-28 | 2000-05-08 | 株式会社日立製作所 | Rolling method and multi-high rolling mill |
| JPH08215730A (en) * | 1995-02-21 | 1996-08-27 | Nippon Steel Corp | Roll bending equipment and plate rolling method of plate rolling mill |
| JP3879239B2 (en) * | 1998-03-24 | 2007-02-07 | Ｊｆｅスチール株式会社 | Crown control method |
-
2011
- 2011-01-12 WO PCT/JP2011/050784 patent/WO2011122069A1/en active Application Filing
- 2011-01-12 CN CN201180015453.6A patent/CN102821881B/en not_active Expired - Fee Related
- 2011-01-12 KR KR1020127024997A patent/KR101300236B1/en active IP Right Grant
- 2011-01-12 EP EP11762310.8A patent/EP2554282B1/en not_active Not-in-force
- 2011-01-21 TW TW100102282A patent/TWI430854B/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR101300236B1 (en) | 2013-08-26 |
| CN102821881B (en) | 2014-08-13 |
| KR20120120476A (en) | 2012-11-01 |
| WO2011122069A1 (en) | 2011-10-06 |
| EP2554282A4 (en) | 2013-12-04 |
| EP2554282B1 (en) | 2015-03-25 |
| CN102821881A (en) | 2012-12-12 |
| TW201143922A (en) | 2011-12-16 |
| EP2554282A1 (en) | 2013-02-06 |
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| MM4A | Annulment or lapse of patent due to non-payment of fees |