201143922 六、發明說明： L 明戶斤屬^_冬餘々貝3 發明領域 本發明係有關於一種輥軋機，其係金屬板材之親乳 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。 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。 發明背景 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 技術。 但是’在例如厚板輥軋機或薄板熱輥軋的粗概乾機之 藉由多遍的逆輥軋來製造板厚度較厚的製品之輥軋機，係 有必要得到比減材料的板厚度更大的上下操作輥間的間 _開度）。因此，在板6度、形狀控制裝置係被課以觀軋 機設備設計上的限制。 例如，在專利文獻卜係揭示一種報札方法，其係 =複數遍㈣軋成為預定板厚度之厚板輥軋，採用操魏 :曲裝置作為形狀控制裝置，且基於在 實 績值來控制輥·彎曲力。 ㈣貫 201143922 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f曲裝置而成者係成為第1〇圖所表示的輥軋機。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_丨之形式。在該臂部組入上操 作輥1-1的增加彎曲襞置6_1、6_2。藉由設作此種形式，能 夠得到大的輥開度。 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，係如第丨丨圖所表 示，亦存在上下增強輥歸座4]、4·2保持操作輕轴承座 3-1、3-2之輥軋機。 而且’所謂增加f曲裝置’係意味著賦予操 座增大親開度方向的力之油壓裝置。所謂增加彎曲農置 係包含其引動器亦即油壓紅之裝置的總稱。但是树 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紅。將操作_增加彎曲 裝置而負載的力稱為增加彎曲力。 另一方面，將賦予操作觀轴承座減小親開度方向的力 之油壓裝置稱為減少彎曲裝置，而且，將操作㈣其 載的力稱為減少·f曲力。又’所謂減少彎曲裝置，俜包人 其引動《即油壓缸之裝置的總稱。故，本發明為了 = 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虹。 201143922 在專利文獻2，係揭示一種親軋機，其係如第丨2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 。 在專利文獻3，係揭示一種輥交又(rou cr〇ss)方式之輥 札機。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_i、6_2。 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-卜5-2組入增加彎曲裝置6_卜6_2。而且，在 專利文獻4所揭示的報軋機，係在|昆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。 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)。 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1〇 圖、第丨1圖、第12圖、第13圖係表示具有減少彎曲裝置的 情況。 先前技術文獻 專利文獻 [專利文獻1]特開平6-87011號公報 [專利文獻2]特開昭62-220205號公報 [專利文獻3]特開平6-198307號公報 [專利文獻4]特開平4-52014號公報 【發明内容】 201143922 發明概要 發明欲解決之課題 如專利文獻1所揭示之典型的厚板輥軋機（第1〇圖、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_丨之臂部係保持上 喿作輥轴承座3-1之構造，s亥上增強觀軸承座係藉由壓下 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_卜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。 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/ch〇ck能力的操作輥彎曲裝置係 用化對此，即便操作輥直徑為左右的厚板輥 機卻有200tf/chock能力的操作輕彎曲裝置係被實用 化。從輥直徑的對比，可明白更大容量的輥彎曲力係必要 的。 在此，作為輥彎曲效果的指標之輥撓度，係所負載的 彎曲六 刀距為相同時，與輥的剖面二次力距成反比例。因此， 相車乂於操作輥直徑為80〇mm的熱軋板條機精加工輥軋機， 操作輥直徑為1〇〇〇mm的厚板輥軋機的輥彎曲效果係較差 而只有為約6〇〇/0。 因此，作為厚板輥軋機的板凸度、形狀控制裝置，係 主要將輥交又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。 疋，魏交叉功能和輥位移功能在輥軋中欲迅速設定 201143922 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。 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。 另一方面，相較於增強輥，因為操作輥1-卜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 油壓配管内的可能性變高。 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。 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 幸昆軋機。 201143922 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轴承座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。 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 力的親彎曲力。 用以欲解決課題之手段 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内側突出的突出塊，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。 (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 安定地支撐操作親軸承座。 (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。 (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。 201143922 以下的輥軋機操 又’亦發現藉由該等裝置上的發明 作方法係成為可能。 ⑷即便應答性低_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、魏產率。 本發明係基於該等知識而完成，其要旨係如以下。 ⑴一種金屬板材之輥軋機，該輥軋機係具有上下一對 操作觀及將該等各自支樓的上下—對增強輥之金屬板材之 輥札機’其特徵為在上下操作㈣載各自增加料力之油 屋虹係配備在往輥軋機機架的内側突出的突出塊，在下操 作輥主體所負載的親軋方向力係藉由前述突出塊與下操作 輥軸承座Mi ehGek)的接觸面切，而且在上操作棍主體 所負載的輥軋方向力铺由位於前述突出塊的上方之減 機機架窗與上操作輥軸承座的接觸面支樓。 β、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 靖增加彎曲裝置，係只要未特別預先告知，係指其引動器 亦即油壓缸。 (2) 如（1)所述之金屬板材之輥軋機，其中在上操作輥負 栽增加彎曲力之油壓缸與在下操作輥負載增加”力之油 墼缸在則述突出塊内係配備在平面圖上的不同位置。 (3) 如（1)或(2)所述之金屬板材之輥軋機其中在上操作 輥負載減少彆曲力之油壓缸，係配備在上增強輥軸承座。 與增加彎曲裝置同樣地，在本發明，所謂減少弯曲裝 201143922 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。 (4) 如（1)至(3)中任—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; 的5-3 、 5-4)。 (5) -種金屬板材之輥軋方法，其係使用前述⑺所述之 金屬板材的輥軋機進行之金屬板材的親軋方法，其特徵為 在報軋開始前，使增加脊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親f曲力作用於操 作輥軸承座。 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靑曲力的合力係維 持輥平衡力的方式使增加”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”曲力，且減少彎曲力 與增加彎曲力的合力係成她平衡力之方式使增加彎曲力 作用於操作輥軸承座時，該步驟心_略。 隨後，輥軋開始時，係邊繼 前述預定的輥軋中減少彎曲力、 使合力形式之預定的輥軋中操作 承座之狀態。 續控制使減少彎曲力保持 邊使增加彎曲力變化， 觀彎曲力作用於操作輥軸 輥軋中係以維持 式進行輥軋。 月J述預&的魏軋中操作親彎 曲力的方 10 201143922 隨後’在輕乾結束時，使增 少彎曲力的合力报弓曲刀支化並使與減 之相#於輥平衡力之輥彎曲力作# 切_座，且麵嶋束編材峨於 "/通後u維持作為前述合力的概平衡力之方式，使減 ^曲力與增加f曲力減少。若是以使減少彎曲力維持預 =減中減少彎曲力之方式進行，且減少彎曲力與增加 :曲力的合力係成為親平衡力之方式使增加彎曲力作用於 細作輥轴承座時，該步驟亦能夠省略。 ⑹如(5)所述之金屬板材之輥軋方法，其中測定產生減 s彎曲力之油壓缸内或連接該油壓缸之油壓配管内的油 壓，並基於該測定值，以合力形式而作用於操作親軸承座 之輕彎曲力係成為預定值的方式來控制増加彎曲力。 發明效果 本發明之輥軋機係如第1圖所表示，係將在上操作輥 M的主體所負載_軋方向力，藉由上操作_承座3d 與比突出塊5-2上方的機架窗的接觸面切之構造因此， 能夠得到大的親開度’同時亦能夠得到強力的輥彎曲力。 而且，每次操作辊重組操作時，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㈣連接至增加彎料置，能夠採㈣以控制高 應答油壓之娜閥，而且能_為高應答性的增加f曲裝 置。 &本發明之輥軋方法係即便不得不配備低應答性的減少 f曲裝置之情況’高應答性的增加彎曲裝置會補償該情況 201143922 而能夠賦予高應答性且強力的板凸度、形狀控制功能。 因此，即j更對於輥軋材入側板厚和親乳材溫度等在報 軋中產f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。 圖式簡單說明 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。 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。 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。 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。 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。 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。 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。 第9圖係表示伴隨第8圖的操作流程之親彎曲力等的時 間系列變化之圖。 第10圖係表示先前技術之輥軋機的構造之側面圖。 12 201143922 第11圖係表示先前技術之輥軋機的構造之側面圖。 第12圖係表示先前技術之棍軋機的構造之側面圖。 第13圖係表示先前技術之輥軋機的構造之側面圖。 第14圖係表示先前技術之親軋機的構造之側面圖。 【實施冷式】 用以實施發明之形緣 以下，參照第卜13圖，來說明本發明之輥軋機及使用 該輥軋機之輥軋方法。 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 操作親1 12及等各自支樓的上下—對增強輥2]、2 2 之輥軋機。 而且本發明之輥軋機係將在上操作輕Μ負載增加彎 曲力之上增加彎曲裝置6_卜6_2、及在下操作親Μ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的内側 突出的突出塊5-1、5-2。 就該點而言，係與第13圖所表示之先前的親札機相 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圖所表示之先前的親軋機的問題點。亦即，從棍札 機的構造設計之觀點、特別是從得到大的㈣度之_， 而將突出塊、5·2的位置和上操作_承座3领形狀等 改變。 第13圖所表示之先前的觀札機，係無法得到大的輥開 度。該觀軋機係將突出塊5句如目對於被輥軋_的通 13 201143922 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 _丨與突出塊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Μ的主體所負載來自被輥軋材1〇和上增強輥 2-1等的輥軋方向力之構造。 該構造時，隨著增大輥開度，上操作輥Μ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 _丨係往上方 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_丨的姿 勢變成不安定，而無法得到大的開度。 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往其内側方向突出之突出塊 5-卜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-卜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。 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，來支樓作用於上操作 親1-1的偏移分力⑽輥軋方向力、亦即在上操彳恤Μ的主 體所負載來自被輥軋材1〇和上增強輥2-1等的輥軋方向力。 如此的構造時，即便操作輥軋機的壓下裝置"而增大 親開度’上操作輕軸承座3_m機架窗接觸的面積係完二無 變化。因而，上操作輥軸承座3]的姿勢係不管親開度如 14 201143922 何，亦能夠經常保持安定。 如第13圖所表示，在突出塊配備上下的増加彎曲裝置 之輥軋機係眾所周知。但是，本發明之親軋機係對突出 塊5-卜5·2的位置和上操作_承座3_丨的形狀進行徹底的 思考’因為係藉由上操作_承座3」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。 而且，本發明之輥軋機，係將在上操作親Μ負載增加 彎曲力之上增加彎曲裝置6_卜6_2、及在下操作輥“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 内側突出之突出塊5·ι、5·2。因此，每次操作輥重組操作時， :必將增加彎曲裝置的油壓配管裝卸，而能夠作為應答性 =的輥彎曲裝置。這是因為能夠透過_定配管的油壓配 官連接至各自的油壓控制閥，且能夠採賴以高應答油壓 控制之伺服閥之緣故。 而且’在本發明之輕軋機，在下操作輥1-2的主體所負 載的輥軋方向力，係藉由下操作報軸承座3_2與突出塊5^ 之接觸角來支撐。因此，在第i圖所表示之本發明的觀乾 機，係大幅度地增加下操作親軸承座3·2被突出塊、& 夾入的部分之高度。 又’因為輥開度係主要是藉由使上操作輥軸承座上下 移祕調整’下操作_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 定。 15 201143922 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_卜5_2的通過線高度之剖面圖。 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]、6_2與下增加弯曲裂置卜3 ' 6-4,以成為鶴作船_2_方向位移驗置關係之方式配 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_卜6_2的衝程時，能夠得到更大的輥開 度。 而且，在第2圖，下增加彎曲裝置6-3、6-4係將入側、 出側各自關料為2支。但是將油壓缸設為丨支且以不與 上增加f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。 第3圖亦表示上下的增加f曲裝置的配置例之剖面平 面圖亦即’大出塊5-1、5-2的通過線高度之剖面圖。如該 圖所表示’將上增加f曲裝置6·!、6_2與下增加彎曲褒置 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W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’能夠得到更大的親開度。 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親彎 曲力。 第10圖帛11圖係任一者均表示先前技術之親乾機， 16 201143922 任一輥軋機均能夠得到大的輥開度。 但疋’该等先前的輥軋機係無法賦予強力的輥彎曲 力。逆疋因為在從上増強輥軸承座‘丨往下方突出的臂部， 組入上增加彎曲裝置6小6-2,而無法配置大容量及大衝程 的上增加’相裝置6_卜6 2之緣故。又，因為該等輥札機係 攸上增強1¾歸座將臂部突出，所以上減少料裝置的設 置空間係靠近輥的轴心。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_卜7_2。 另方面，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往其内側方向突出的突出塊^、5_2，配 置大容量、大衝程的上增加彎曲裝置6-卜6-2。 ^ 機’在上增_軸減4-1係不具備 如第1〇圖、第11圖所表示的臂部。因此，在上增強親轴承 座4_1之不會與上增強_軸承產生干擾的位置，能夠配置 =量的上減少.彎曲裝置抑。藉此能夠在上操作觀 i·1負載大的減少彎曲力。 的开-出塊5-1、Μ的位置和上操作輥軸承座 的开/狀進讀底的思考，使賴 :塊-上，架窗12之接觸二：= ==軋…之構造之本發明的_時: 此夠得到度’同時亦能夠賦予強力的輥彎曲力。 又’母4作輥重組操作時， ::㈣此’在各自的增”曲：= 他夠透過-油壓配管而連接至各自的油β控制閥，能= 17 201143922 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。 第4圖係表示本發明之輥軋機的構造的另外—個例子 之側面圖。第4圖所表示的輥軋機，上輥系統係與第丨圖同 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 4配備在下增強親軸承座4-2。對此，如第4圖所表示 的親軋機，係將下減少f曲裝置7·3、7_4配備纽於突出塊 5-1、5-2下方之專用的突出塊5_3、5_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，在褒 卸時微小的異物混合油壓配管内之可能性高。 因此’通常採用用以控制高應答油壓之飼服閥係困難 的，而且亦有必須一部分採用撓性配管之情況。 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。 對此’使用第4圖所表示親軋機時，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^ 塊之下減少彎曲裝置的油廢配管，係能夠採用用以控制高 應答油麼之伺服閥，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報贊曲 裝置。 其次，說明本發明之輥軋方法。如第旧、第4圖所表 201143922 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 壓配管袭卸，在裝卸時，微小異物混入油壓配管内之可能 性高。 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。 因此，相較於採用固定配管和伺服閥之情況，將上減 J .4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。 但是，在無負載輥軋荷重之空轉(idk)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，有必要迅速地恢復親平衡狀態。 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。 本發明之輥軋方法係解決上述課題者。亦即一種使用 將上減少幫曲裝置7-1、7-2配備於上增強輥轴承座4]而成 之本發明的輥軋機之親軋方法，其中在該報軋機，能夠產 生之解決上述課題之|昆軋方法。 19 201143922 如前述，在將上減少彎曲裝置7-：l、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。 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往該内側方向突出的突出塊54、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。 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。 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。 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。 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。 首先，在輥軋開始前，運算、輸出對應隨後進行輥軋 之幸昆軋材之親軋中操作親彎曲力的設定值Fr。在此，FR為 20 201143922 負值’亦即係與減少彎曲力運算而得到者。而且 係將增加彎曲力(增加方向(將輥打開方向)的力 值，並將減少f曲力(減少方向(壓住上下操作輕之二)的 力）設為正值。 輥軋開始前係使增加彎曲力與減少f曲力的雒 用，並使合力形式之相當於親平衡力⑹之減少側^ 力作用於操作輥軸承座。 亦即，在輥軋前的空轉⑽e)時，係將增加彎 出功率設為例、將減少彎曲裝置輸出功率設為 且將Ib+Db設為輥平衡力Fs(>〇)而作用。 親平衡^，其能夠作為即便在空轉狀態被電動機驅 動的操純與從動的增強_不會滑動的力來決〜 時，DB係狀為減少彎曲裝置的㈣器係不會 承座離開的程度之最小的油壓即可。 然後，在輥軋開始前之某一時序（時間轴上的a點），依 照Ds=Fr-Ir來運算為了使輥軋中操作料曲力作用 分的狀輥軋巾減少彎曲裝置輸“㈣。然後，以 衡力⑹成為-定的方式將缺㈣時輸出。在此 軋中的增加彎曲裝置輸出功率，能 R系輥 约以Ds的絕對值不會 為過大的方式來贱決定接近㈣㈣的最小值之值。工 係㈣戌之增加彎曲裝置輸出体因此，在設$ 合力形式之操作觀彎曲力係、仍舊社而實質上益變化。 其次，在輥軋開始時，減少彎曲力係邊保持—定值、 邊使增加料力降低，錢合力料之財物軋中操作 21 201143922 輥彎曲力Fr作用於操作輥軸承座。 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脊曲裝置，而 能夠將合力形式之操作輥彎曲力從輥平衡力F b (> 〇)迅速地 切換至輥軋中操作輥彎曲力Fr(<〇)。 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（l〇ad ceU)來 檢測荷重，I以設為該檢測出的荷重為超過預測輥軋荷重 的30°/❶時之方法來決定即可。 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 作用於操作粮軸承座，並結束報軋。 亦即，在輥軋結束時（時間軸上的^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I s。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(<〇))迅速地切換成為輥平衡力 (fb(>0))° 而且’所謂輥軋結束時(C)係指輥軋結束時點，其檢測 係例如使用親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5〇0/〇 時之方法來決定即可。 而且’將從輥軋結束時(c)例如經過丨〜3秒的點點，設 為拉作元成時序（時間軸上的c點）’在該時序，將增加彎曲 22 201143922 裝置輸出功率變更為18，且將減少彎曲裝置輸出功率變更 為DB〇即便該變更，合力形式之操作輥料力亦能夠大致 維持為輥平衡力（FB)。 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親彎 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。 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。 亦即，依照本發明之輥軋方法，即便對於輕札材入側 板厚度和輥軋材溫度等的等在親軋中變動之干擾，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。 第7圖係減少彎曲裝置的應答性為低的情況(特別是且 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β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裂置的操作流 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.憂化。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。 23 201143922 第7圖的情況，因為在時序…，高應答性的增加弯曲 裝置的輸出功率係急遽地變化，應答性差的減少管曲裝置 的輸出功率產生變化。其結果，合力形式之操作親彎曲力 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。 *第8圖係表示具有高應答性的增加弯曲裝置及低減少 f曲裝置之情況的操作流程之圆。以下基於該圖進行說明。 第8圖所表示的輥乳方法，係使用設置於減少f曲裝置 之’則力⑽常測定減少料力’或是連接該裝置之油壓配 笞内的油壓，並基於该測定值來控制增加彎曲裝置。亦即， 輕乳前後係以操作輥f曲力成為輥平衡力Fb的方式、在輥 乾中係以操作棍臀曲力成為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。 藉由第8圖所表示的輥軋方法進行輥軋時，如第9圖所 表不’增加彎曲裝置會補償減少彎曲裝置之輸出功率的變 動而此夠使操作輥彎曲力為最適當，來實現高應答的控 制。 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 力率的隻動來设定補償其之增加彎曲襄置的輸出功率，亦 能夠得到同樣的效果。 產業上之可利用性 本發明係能夠利用在鋼板的輥軋、特別是將大開度設 24 201143922 為必要之逆輥軋機等。 c圖式簡單說明】 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。 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。 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。 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。 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。 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。 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。 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。 第1〇圖係表示先前技術之輥軋機的構造之側面圖。 第11圖係表示先前技術之輥軋機的構造之側面圖。 第12圖係表示先前技術之輥軋機的構造之側面圖。 第13圖係表示先前技術之輥軋機的構造之側面圖。 25 201143922 第14圖係表示先前技術之輥軋機的構造之側面圖。 【主要元件符號說明】 1-1...上操作輥 1- 2...下操作輥 2- 1...上增強輥 2-2...下增強輥 3 -1...上操作親軸承座 3 -2...下操作棍軸承座 4-1...上增強輥軸承座 4- 2...下增強輥軸承座 5- 1...入側突出塊 5-2...出側突出塊 5-3...入側下突出塊 5- 4...出側下突出塊 6- 1...入側上增加彎曲裝置 6-2...出側上增加彎曲裝置 6-3...入側下增加彎曲裝置 6-4...出側下增加彎曲裝置 7-1...入側上減少彎曲裝置 7-2...出側上減少彎曲裝置 7-3...入側下減少彎曲裝置 7- 4...出側下減少彎曲裝置 8- 1...入側增強輥平衡裝置 8-2...出側增強輥平衡裝置 9…機架 10.. .被輥軋材 11.. .壓下裝置 12.. .機架窗 P...輥軋荷重 a、b、c、d··.時序201143922 VI. Description of the invention: L Minghujin ^_冬余々贝 3 FIELD OF THE INVENTION The present invention relates to a rolling mill, which is a metal sheet pro-milk machine having high responsiveness and capable of imparting 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. Moreover, the present invention also relates to a rolling method which uses the above-mentioned rolling mill which has a high response and can impart a strong plate crown and shape control function. BACKGROUND OF THE INVENTION In the rolling operation of sheet metal, the crown and shape of the rolled sheet are regarded as important quality indicators. A number of techniques have been disclosed regarding the crown and shape of the sheet. However, it is necessary to obtain a plate thickness of a material having a thicker plate thickness by a plurality of passes of reverse rolling in a roughing machine such as a thick plate rolling mill or a sheet hot rolling machine. The interval between the upper and lower operating rollers is _ opening degree. Therefore, in the 6-degree plate, the shape control device is subject to the limitations of the design of the rolling mill equipment. For example, in the patent literature, a method for reporting is disclosed, which is a thick plate rolling of a predetermined number of plates in a plurality of times (four), using a machine: a curved device as a shape control device, and controlling the roller based on the actual value. Bending force. (4) Through the use of the roll mill type four-stage rolling mill disclosed in Patent Document 1, the roll form is the structure shown in Fig. 14. In the rolling mill arrangement of Fig. 14, the reduction of the f-curve device is the one shown in the first drawing. 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_丨. The curved bending means 6_1, 6_2 of the upper operating roller 1-1 are incorporated in the arm portion. By setting this form, a large roll opening degree can be obtained. 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. In addition, as a rolling mill form capable of obtaining a large roll opening degree, as shown in the figure, there are also upper and lower reinforcing rolls homing 4], 4·2 holding operation light bearing seats 3-1, 3-2 Rolling mill. Further, the term "increasing the f-mechanism device" means a hydraulic device that gives the operator a force to increase the direction of the opening. The so-called increase in bending farms is a general term for devices that include their actuators, that is, oil pressure red. However, in order to simplify the description, the so-called increase of the bending device means that the actuator is also hydraulically red as long as it is not specifically notified. The force that is added to the operation_increasing the bending device is referred to as increasing the bending force. On the other hand, a hydraulic device that imparts a force for reducing the direction of the opening of the operation bearing housing is referred to as a reduction bending device, and the force of the operation (4) is referred to as a reduction/f curvature. In addition, the so-called reduction of the bending device, the singularity of the slinger, that is, the general name of the device of the hydraulic cylinder. Therefore, in order to simplify the description of the present invention, the reduction of the bending means means that the actuator, that is, the oil pressure, is not specifically notified. 201143922 In Patent Document 2, a pro-rolling mill is disclosed, which is shown in Fig. 2, which 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. . In Patent Document 3, a roller machine in a rou cr〇ss mode is disclosed. The rolling mill is also shown in Fig. 12, and is an increased bending device 6_i, 6_2 which is incorporated in the operating roller bearing housings 3-1, 3-2 into the operating roller. Patent Document 4 discloses a rolling mill which, as shown in Fig. 13, has a function of operating a roller displacement. The rolling mill is incorporated in a projection block 5-b 5-2 integral with the rolling mill stand to add a bending device 6_b 6_2. Further, in the newspaper rolling mill disclosed in Patent Document 4, a plurality of hydraulic cylinders for increasing the bending means are provided in the direction of the Kun axis, and it is not necessary to bias the load when trying to displace the operating roller. Further, the rolling mill of the usual thick steel plate is shown in Fig. 14, and the bending device is not reduced (see Patent Documents 1, 2, 3, and 4). However, in order to impart a strong plate crown and shape control function, the rolling mill of the present invention has a premise of reducing the bending device. Therefore, the first drawing, the first drawing, the twelfth, and the thirteenth drawings show the case where the bending device is reduced. [Patent Document 1] Japanese Laid-Open Patent Publication No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. SUMMARY OF THE INVENTION PROBLEM TO BE SOLVED BY THE INVENTION A typical thick plate rolling mill disclosed in Patent Document 1 (a rolling mill shown in Fig. 1 and Fig. 11) is capable of obtaining a large size. The roll opening is designed to be the highest priority. That is, the arm portion of the upper reinforcing roller bearing housing 4_丨 is held in the structure of the upper roller bearing housing 3-1, and the upper and lower positions are set by the pressing device 11 by the pressing device 11. Further, it is difficult to assemble a large-capacity hydraulic cylinder system because the arm portion is incorporated in the structure to increase the bending device 6_b 6_2. Therefore, it is impossible to impart a strong roller bending force. For example, even in a hot-rolling slater finishing rolling mill with a diameter of about 800 mm, a bending device for a running roller having a capacity of more than 200 tf/ch〇ck is used for this purpose, even if the diameter of the operating roller is about the left and right thick plate rolling machine However, the operation of the light bending device with 200tf/chock capability has been put into practical use. From the comparison of the diameters of the rolls, it is understood that a larger capacity of the roll bending force is necessary. 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 six-pitch distance is the same. Therefore, the car is hung on a hot-rolling slater finishing rolling mill with a working roller diameter of 80 〇mm. The roll bending effect of the slab rolling mill with a diameter of 1 〇〇〇mm is poor and only about 6 〇. 〇/0. Therefore, as the plate crown and shape control device of the thick plate rolling mill, the roll transfer function and the roll shift function are mainly used and utilized. There are not many use of the operating roller bending device.疋, Wei cross function and roll displacement function are quickly set in the roll. 201143922 The change is difficult. 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. On the other hand, as in 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 it is also possible to incorporate a large-capacity hydraulic cylinder, a practical operation roller bending effect can be expected even in a thick plate rolling mill. On the other hand, compared with the reinforcing roller, since the operation roller 1-Bu 1-2 is easily worn out, regular roller reorganization is necessary. Therefore, it is necessary to load and unload the hydraulic piping of the bending device each time the recombination operation. In this case, not only the roll recombination time becomes long, but also the possibility that minute foreign matter is mixed into the hydraulic piping during piping loading and unloading becomes high. Therefore, the rolling mill cannot adopt a servo valve for high response oil pressure control. In addition, 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. Further, when a flexible pipe is used, the fluctuation of the hydraulic pressure may be alleviated because of the soft structure. Therefore, it is difficult to use a roll bending device which is highly responsive. 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 load and unload the hydraulic piping that increases the bending device each time the roller recombination operation is performed. Therefore, the rolling mill can be used as a roller bending device having high responsiveness. Therefore, it is used extensively in the finishing of hot-rolled slats. 201143922 However, in the rolling mill, the rolling direction force acting on the offset component of the upper operating roller 1-1 is the contact surface between the operating 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 outer side 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, it is necessary to use a thick rolling mill having a large roll opening degree, and the rolling mill is hardly used. As described above, in the prior art, there is no roll mill having a high responsiveness and capable of incorporating a powerful operating roll bending device. SUMMARY OF THE INVENTION The object of the present invention is to provide a rolling mill which is capable of obtaining a large opening between the upper and lower operating rolls while being highly responsive and capable of imparting a strong bending force. In order to solve the above problems, the inventors of the present invention have focused on the above-mentioned problems, 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 relatively In the case where the line is arranged asymmetrically up and down, the following cases are possible. (a) The rolling direction force applied to the upper operating roller chock is often able to withstand the construction by the frame. Thereby, the operating bearing housing can be stably supported regardless of the degree of opening of the roller. (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) 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 by the high response. 201143922 The following rolling mills have also been found to be possible by the inventive method of the devices. (4) Even with low responsiveness and less bending means, it is possible to control the bending force of high response by cooperating with the increased responsiveness of the bending device. As a result, product quality and yield can be greatly improved. The present invention has been completed based on such knowledge, the gist thereof being as follows. (1) A rolling mill for sheet metal having a pair of upper and lower operation views and a roll machine for the metal sheets of the upper and lower sides of the respective support towers, which are characterized in that the upper and lower operations (4) are loaded with respective materials. The Lishi Oil House Rainbow System is equipped with a protruding block protruding to the inside of the rolling mill frame, and the direction of the pro-rolling direction supported by the lower operating roller body is cut by the contact surface of the aforementioned protruding block and the lower operating roller bearing housing Mi ehGek). Moreover, in the rolling direction of the upper operating stick body, the contact surface of the reduction frame window and the upper operating roller bearing seat located above the protruding block is laid. 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, the present invention adds a bending device as long as it is not specifically notified, and refers to a hydraulic cylinder which is an actuator. (2) The rolling mill for sheet metal according to (1), wherein the hydraulic cylinder that increases the bending force on the upper operating roller and the oil cylinder that increases the load on the lower operating roller are equipped in the protruding block (3) A rolling mill for sheet metal as described in (1) or (2), wherein the upper hydraulic roller is used to reduce the pressure of the cylinder, and is provided in the upper reinforcing roller bearing. In the present invention, the reduction of the bending device 201143922 is a general term for the device including the hydraulic cylinder of the actuator. However, in order to simplify the description, the present invention is intended to reduce the bending device. (4) A rolling mill for sheet metal as described in any one of (1) to (3), wherein the lowering of the roller load reduces the bending force of the oil. The pressure cylinder is provided in a second protruding block (for example, 5-3, 5-4) located under the lower reinforcing roller bearing housing or the aforementioned protruding block. (5) A rolling method of a metal plate, a metal plate which is produced by a roll mill using the metal sheet described in the above (7) The method of pro-rolling of the material is characterized in that both the effect of increasing the curvature of the ridge and the reduction of the bending force are applied before the start of the rolling, and the affinity of the resultant force in the form of the balance of the roller is applied to the operating roller bearing. Subsequently, the force is reduced by changing the bending force in such a manner as to reduce the bending force in the predetermined rolling, and the force 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 a way of balancing the force, the bending force is applied to the operating roller bearing housing. This step is abbreviated. Subsequently, at the beginning of the rolling, the edge is reduced in bending force in the predetermined rolling, and the state of the seat is operated in a predetermined rolling form in the form of a resultant force. Increasing the bending force change, the bending force is applied to the rolling of the operating roller shaft to maintain the rolling. The side of the bending force in the Wei rolling of the pre- & the first 10 201143922 Subsequently 'At the end of the light drying, The combined force of increasing the bending force is reported as branching and the bending force of the roller balance force is made to #切_座, and the surface 编 编 编 & & & & & The method of balancing the force of the force is to reduce the bending force and increase the f-curvature. If the bending force is reduced to maintain the bending force, the bending force is increased and the bending force is increased. The way to become a pro-balance (6) The rolling method of the metal sheet according to (5), wherein the hydraulic cylinder that produces the s-cut bending force is connected or connected to the hydraulic cylinder. The hydraulic pressure in the hydraulic piping is controlled based on the measured value, and the bending force acting on the operating bearing housing is controlled to a predetermined value in a resultant manner. The rolling mill of the present invention is as follows. 1 is a structure in which the load-rolling direction force of the main body of the upper operation roller M is cut by the upper operation_bearing 3d and the contact surface of the frame window above the protruding block 5-2, thereby enabling It is possible to obtain a strong roll bending force at the same time. It is also possible to obtain a strong roll bending force. Moreover, it is not necessary to attach or detach the hydraulic pipe to which the bending device is added every time the roll recombination operation is performed. Therefore, it is possible to transmit the respective hydraulic pressure pipes through the fixed hydraulic pressure pipes. The oil pressure control (4) is connected to the increased bending material, can take (4) to control the high response oil pressure of the Na valve, and can be a high responsiveness to increase the f-curve device. The rolling method of the invention is even equipped. Low responsiveness Reducing the condition of the f-curve device. The increase in the high responsiveness of the bending device compensates for the situation 201143922, and it can impart high responsiveness and strong plate crown and shape control functions. Therefore, j is more suitable for the side thickness of the rolled material and the pro The temperature of the dairy material, etc., can also produce a good plate crown and shape, and can greatly improve the quality and productivity of the product. Figure 1 is a view showing the roll of the present invention. A side view of an example of the structure of the rolling mill. Fig. 2 is a perspective plan view showing an arrangement example of the upper and lower increasing bending means. Fig. 3 is a perspective plan view showing an arrangement example of the upper and lower increasing bending means. Side view of another example of the structure of the rolling mill of the invention. Fig. 5 is a view showing an example of the operation flow of the rolling method of the present invention. 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. 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. Fig. 8 is a view showing another example of the operation flow of the rolling method of the present invention. Fig. 9 is a view showing a time series change of the bending force or the like accompanying the operation flow of Fig. 8. Figure 10 is a side view showing the construction of a prior art rolling mill. 12 201143922 Figure 11 is a side view showing the construction of a prior art rolling mill. Figure 12 is a side elevational view showing the construction of a prior art stick rolling mill. Figure 13 is a side view showing the construction of a prior art rolling mill. Figure 14 is a side elevational view showing the construction of a prior art pro-rolling mill. [Implementation of the cold type] The shape of the invention for carrying out the invention. Hereinafter, the rolling mill of the present invention and the rolling method using the same will be described with reference to Fig. 13. 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 is provided with a pair of upper and lower operation rollers 1 and 12, and a pair of reinforcing rolls 2] and 2 2 for each of the branches. Moreover, the rolling mill of the present invention increases the bending device 6_b 6_2 over the upper operation of the light load increase bending force, and increases the bending device 6_3, 6_4 under the lower bending force of the lower operating relative load. Projecting blocks 5-1, 5-2 protruding from the inside. In this regard, it is the same as the previous parent machine shown in Fig. 13. However, the rolling mill of the present invention has been thoroughly rethought to solve the problem of the prior pro-rolling mill shown in Fig. 13. That is, from the viewpoint of the structural design of the stick machine, in particular, from the point of obtaining a large (four) degree, the position of the protruding block, the position of 5·2, and the shape of the upper operation_bearing 3 collar are changed. The previous viewing machine shown in Fig. 13 was unable to obtain a large roll opening. The rolling mill is arranged such that the protruding blocks are substantially vertically symmetrical with respect to the passing position (passing line) of the rolled sheet 13 201143922. 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_丨 and the protruding block 5_2. The main body of the upper operation roller is loaded with a structure from the rolling direction force of the rolled material 1〇 and the upper reinforcing roller 2-1. In this configuration, as the roller opening degree is increased, the rotation center position of the upper operation roller (the action point of the rolling direction force) and the upper operation roller bearing housing 3 _ 丨 are moved upward to cause and support the aforementioned rolling direction The contact area of the force protruding block 5-2 is reduced. Therefore, as the roller opening degree is increased, the posture of the upper operating roller bearing housing 3_丨 becomes unstable, and a large opening degree cannot be obtained. The rolling mill of the present invention solves the above problems. In the rolling mill of the present invention, as shown in Fig. 1, the projecting blocks 5-b-5-2 projecting from the frame 9 toward the inner side thereof are disposed at positions shifted to the lower side with respect to the passing line. That is, unlike the previous rolling mill shown in Fig. 13, the protruding block 5-b 5-2 is arranged in such a manner as to be asymmetric with respect to the passing line. Moreover, the upper operating roller chock 3-1 does not contact the projecting block 5_2 to support the rolling force, but seeks to contact the frame window to support the rolling force. Thereby, the rolling mill of the present invention acts on the offset component of the upper operating pro 1-1 by the contact surface of the upper operating roller bearing housing 3_1 and the frame window 12 above the protruding block 5-2. (10) The rolling direction force, that is, the rolling direction force from the rolled material 1 〇 and the upper reinforcing roller 2-1, etc., is loaded on the main body of the top. In such a configuration, even if the rolling device of the rolling mill is operated, the area of the light-retaining seat 3_m frame window contact is increased. Therefore, the posture of the upper operating roller bearing housing 3] can be kept stable regardless of the degree of opening such as 14 201143922. As shown in Fig. 13, a rolling mill equipped with a top and bottom bending device for the projecting block is known. However, the pro-rolling mill of the present invention thoroughly considers the position of the protruding block 5-b5.2 and the shape of the upper operation_bearing 3_丨 because it is operated by the upper seat _ socket 3 and the protruding block 5_2 The contact surface of the upper frame window 12 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. Moreover, the rolling mill of the present invention increases the bending device 6_b 6_2 above the upper operating load increase bending force, and increases the bending device 6_3, 6_4 under the lower operating roller "2 load increasing bending force". 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, the hydraulic piping of the bending device must be added and detached, and the roller bending device capable of being responsive = This is because it is possible to connect to the respective oil pressure control valves through the hydraulic pressure distribution valve of the fixed pipe, and it is possible to use the servo valve with high response oil pressure control. Moreover, in the light rolling mill of the present invention, the operation is performed below. The rolling direction force supported by the main body of the roller 1-2 is supported by the contact angle of the bearing block 3_2 and the protruding block 5^ by the lower operation. Therefore, the dryer of the present invention shown in Fig. i, The height of the portion of the lower bearing block 3·2 being protruded and & is greatly increased. Also, because the roll opening degree is mainly adjusted by moving the upper operating roller bearing seat up and down _The amount of up and down movement of the seat is small. As the opening degree of the roller increases, the posture of the lower operating roller bearing housing does not become fixed. 15 201143922 Fig. 2 is a cross-sectional plan view showing an arrangement example of the upper and lower increasing bending devices, that is, 'protruding block 5_b 5_2 A cross-sectional view of the passing line height. The rolling mill of the present invention is preferably arranged such that the upper and lower increasing bending means are offset from each other in the cross-sectional plan view of the protruding block. For example, as shown in Fig. 2, the bending means 6 is added. ], 6_2 and the increase of the bending cracks 3 ' 6-4, in order to become the crane ship _2_ direction displacement inspection relationship configuration is better. Thus, the upper and lower increased bending devices will not interfere with each other. When the stroke of the bending device 6_b 6_2 is increased, a larger roller opening degree can be obtained. Moreover, in the second drawing, the bending device 6-3, 6-4 is added to the inlet side and the outlet side, respectively. In the case of the hydraulic cylinder, it is possible to obtain the same position when the hydraulic cylinder is placed at a different position in the axial direction of the operation roller 1-2 so as not to interfere with the increase of the f-curve devices 6.1 and 6·2. The effect of Fig. 3 also shows an example of the arrangement of the upper and lower increasing f-curve devices. The plan view is also a cross-sectional view of the height of the passing line of the large blocks 5-1 and 5-2. As shown in the figure, 'the upper curved device 6·!, 6_2 and the lower curved portion 6·3 are added. 6 _ 4, the positional relationship of displacement to the rolling direction is also good. In such a configuration, the upper and lower W devices do not interfere with each other. When the increase is increased, the 'bending device 6·1 '6·2 strokes' In this case, the structure of the rolling mill of the present invention will be described mainly from the viewpoint of obtaining a large roll opening degree from one of the solutions, and secondly, it will be easily realized according to the configuration ' Another solution is to give strong bending force. Figure 10 Figure 11 shows that any of the prior art pro-dryers, 16 201143922 can achieve a large roll opening. However, these previous rolling mills were unable to impart strong roller bending forces. Because of the arm that protrudes from the top of the upper reaming roller bearing housing, the bending device 6 is added 6-2, and the large-capacity and large-stroke can not be configured to increase the 'phase device 6_b 6 2 For the sake of it. Further, since the rollers are reinforced and the arms are protruded, the installation space of the upper material reducing device is close to the axis of the roller. Therefore, since the bearing of the upper reinforcing roller is disturbed, it is impossible to arrange the large-capacity upper reduction bending device 7_b 7_2. On the other hand, as shown in Fig. 1, the rolling mill of the present invention is capable of adding a large-capacity, large-stroke upper bending device 6 to the protruding blocks ^, 5_2 protruding from the frame 9 of the rolling mill to the inner side thereof. Bu 6-2. ^ The machine is increased by _ axis minus 4-1. The arm parts shown in Fig. 1 and Fig. 11 are not provided. Therefore, in the position where the upper reinforcing parent bearing 4_1 does not interfere with the upper reinforcing_bearing, the amount of the upper portion can be reduced. Thereby, it is possible to reduce the bending force with a large load on the upper operation view i·1. The opening-out block 5-1, the position of the cymbal and the opening/reading of the upper operating roller bearing seat, so that the block-up, the window 12 contact 2: = == rolling... The _ time of the present invention: this degree of availability can also impart a strong roll bending force. In addition, when the 'female 4's roller recombination operation, :: (4) this 'in their respective increments': = he is connected to the respective oil beta control valve through the hydraulic piping, can = 17 201143922 adopted to control high response The servo valve of the hydraulic pressure can be used as a highly responsive bending device. Fig. 4 is a side view showing another example of the structure of the rolling mill of the present invention. The rolling mill shown in Fig. 4, the upper roller The system is constructed in the same manner as the first diagram, but the lower roller system is of different construction. The rolling mill shown in Fig. 1 is to reduce the bending device under the lower operating roller load to reduce the bending force. - 2. In this regard, as shown in Fig. 4, the lower rolling apparatus 7·3, 7_4 is provided with dedicated protruding blocks 5_3, 5_4 below the protruding blocks 5-1, 5-2. 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 oil pressure of the bending means. Pipe loading and unloading, that is, small foreign matter mixing hydraulic piping at the time of loading and unloading There is a high possibility of being inside. Therefore, it is often difficult to control the feeding valve system for controlling the high response oil pressure, and it is also necessary to use a part of the flexible piping. Therefore, compared with the case of using the fixed piping and the servo valve The responsiveness of the roll bending device has to be lowered. When using the pro-rolling mill shown in Fig. 4, the above-mentioned problem caused when the lower reinforcing roller 2-2 is reorganized can be solved. By reducing the oil waste pipe of the bending device under the block, it is possible to use a servo valve for controlling the high response oil, and it is possible to eliminate the use of the flexible pipe. Therefore, the reorganization of the lower reinforcing roller 2-2 becomes easy and can be performed as Highly responsive tribute device. Next, the rolling method of the present invention will be described. As shown in the previous and fourth drawings, 201143922, the upper reinforced roller bearing housing 4-1 is equipped with a reduction bending device 7-1, 7 In the case of -2, when the upper reinforcing roller 2-1 is reassembled, it is necessary to reduce the hydraulic piping of the bending device, and it is highly likely that fine foreign matter is mixed into the hydraulic piping during loading and unloading. High control In order to make the piping easy to load and unload, the hydraulic piping (flexible piping, etc.) that is flexible and detachable must be connected to the respective hydraulic control valves. Flexible piping, etc. In the case of a flexible pipe that is flexible and detachable, it is also possible to absorb or relax the fluctuation of the hydraulic pressure because of the soft structure. Therefore, compared with the case where the fixed pipe and the servo valve are used, the reduction is performed. 4.4 curved devices 7-1, 7-2, equipped with the upper reinforcing roller bearing housing 4-1, the responsiveness of the roller bending device has to be reduced. However, in the idle load of the unloaded rolling load (idk) It is not possible to reduce the bending force by the load. Therefore, when the bending force is reduced, the bending force is quickly set from the idling state of the roller balance to the start of the rolling, and it is necessary to quickly restore the pro at the end of the rolling. Balanced state. Therefore, when the bending device controls the change of the bending force of the roller by the reduction of the responsiveness, the predetermined bending force is not applied to the front end of the rolled material, which causes the shape defective portion to become longer. The rolling method of the present invention solves the above problems. That is, a pro-rolling method of the rolling mill of the present invention in which the upper bending-reducing device 7-1, 7-2 is provided on the upper reinforcing roller bearing housing 4], wherein the reeling machine can be produced to solve the above The subject | Kunming rolling method. 19 201143922 As described above, the rolling mill in which the upper bending device 7-:1, 7-2 is provided in the upper reinforcing roller bearing housing 4-1 reduces the responsiveness of the bending device. 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 54, 5-2 protruding from the frame 9 toward the inner side, it can be used as a large capacity and a large size. The bending means 6-1, 6-2 are added to the stroke. Further, since it is not necessary to attach or detach the hydraulic piping for increasing the bending device every time the roller recombination operation, the hydraulic pressure piping and the servo valve can be used, whereby the bending device can be increased as a highly responsive. 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. 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. 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 view showing a time series change of the rolling load, the increase in the output power of the bending device, the reduction of the output power of the bending device, and the resultant force, i.e., the bending force of the operating roller. Hereinafter, description will be made based on the fifth and sixth figures. First, before the start of the rolling, the set value Fr of the operation bending force in the pro-rolling of the Shunkun rolling material which is subsequently rolled is calculated and output. Here, the FR is 20 201143922 negative value 'that is obtained by reducing the bending force calculation. In addition, the bending force (increasing the direction (the direction in which the roller is opened) is increased, and the f-curvature (the force for reducing the direction (pressing the upper and lower operations) is set to a positive value.) The bending force is increased and the f-curvature is reduced, and the force-reducing form is equivalent to the reducing force of the affinity balance (6) acting on the operating roller bearing housing. That is, during the idle rotation (10)e) before rolling, The bending power is increased as an example, the bending device output power is reduced, and Ib + Db is set to the roller balance force Fs (> 〇). The pro-balance can be used as a force that does not slide even when the motor is driven by the motor in the idling state, and the DB system is used to reduce the bending device (4). The minimum degree of oil pressure can be. Then, at a certain timing before the start of rolling (point a on the time axis), according to Ds=Fr-Ir, the bending device for reducing the bending force of the operating material in the rolling is calculated. (4) Then, the output of the bending device is increased in the way of the constant force (6). In this rolling, the output power of the bending device is increased, and the R-type roller can be determined by the way that the absolute value of Ds is not too large (4) (4) The value of the minimum value. The engineering system (4) increases the output of the bending device. Therefore, in the case of the combination of the operating force, the bending force system and the old society are substantially changed. Secondly, at the beginning of the rolling, the bending force is reduced. While maintaining - constant value, while increasing the material strength, the operation of the money and material in the rolling operation 21 201143922 The rolling force Fr acts on the operating roller bearing housing. That is, at the beginning of the rolling (point b on the time axis) The bending device output power is changed from Is to IR. Thereby, the slow response of the bending device reduces the output power of the bending device, which is still the DS' by the control of the fast response to the increased curvature device, and can be combined in the form of the operating roller bending force Balance from the roller F b (> billion) to quickly switch operating rolling roll bending force Fr ( <〇). 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 roller load measuring force measuring device (l〇ad ceU) of the rolling mill to detect the load, and I is set to The detected load is determined by a method in which the predicted rolling load is 30°/❶. 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 (Fb) of the resultant force type is applied to the operation grain bearing seat, and the finish rolling is ended. That is, at the end of the rolling (point on the time axis), the reduction of the output power of the bending device is still Ds and the response of the bending device is reduced, and the output power of the bending device changes from IR to I s . Thereby, the bending force of the operating roller in the form of a resultant force can be manipulated from the rolling force of the rolling roller (FR ( <〇)) rapidly switching to the roll balance force (fb(>0))° and "the so-called roll end (C) means the point at the end of the roll, and the detection is performed by, for example, the roll load using the pro-roller The load cell is used to detect the load, and is determined by setting the detected load to be less than 5〇0/〇 of the predicted rolling load. In addition, 'from the end of the rolling (c), for example, after 丨~3 seconds, it is set as the pull-forming sequence (point c on the time axis)'. At this timing, the bending is increased 22 201143922 The output power of the device is changed. If it is 18, and the bending device output power is changed to DB, even if the change is made, the working roller material force of the resultant force type can be maintained substantially as the roller balance force (FB). As shown in Fig. 5 and Fig. 6, the rolling method of the present invention uses a highly responsive bending device to change the 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, the bending device compensates for this situation because of the increase in high responsiveness, so that a high response and a strong plate crown and shape control function can be imparted. 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 in the rolling may be carried out in accordance with the measured value of the rolling load. In other words, according to the rolling method of the present invention, it is possible to produce a good plate crown shape even if the thickness of the side plate and the temperature of the rolled material are disturbed by the change in the pro-rolling. Can improve product quality and yield. Fig. 7 is a view showing a time series change of a roll bending force or the like in which the responsiveness of the bending device is reduced (in particular, a case where the hydraulic pressure of the pressure is lowered when the reaction force disappears) is the same as in Fig. 6 The system shows the operation flow of increasing the bending device and reducing the bending crack as shown in Fig. 5, and the time series of the roll bending force for the rolling operation of one rolled material is worried. 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. 23 201143922 In the case of Fig. 7, because of the increase in high responsiveness, the output power of the bending device changes sharply, and the responsiveness decreases, and the output power of the pipe device changes. As a result, the operational bending force in the resultant form reaches the FR system delay at the timing b, causing the Fb system to arrive at the timing c. The rolling method shown in Fig. 8 solves this problem. * Fig. 8 shows the circle of the operation flow of the case of increasing the bending device with high responsiveness and the case of reducing the f-curve device. The following description will be based on this figure. The method of rolling the milk shown in Fig. 8 is to use the force (10) provided to reduce the f-curve device to measure the reduced material force or to connect the oil pressure in the hydraulic pressure fitting of the device, and based on the measured value. Control increases the bending device. That is, the front and rear of the light milk are controlled in such a manner that the bending force Fb of the operation roller f becomes the roller balance force Fb, and the bending force of the stick is FR in the roll dry, 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 control system is the same as the rolling method shown in Fig. 5. When rolling is performed by the rolling method shown in Fig. 8, as shown in Fig. 9, the increase in the bending device compensates for the variation in the output power of the bending device, which makes the bending force of the operating roller the most appropriate. Achieve high response control. 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 increased bending force is compensated by measuring the output force rate of the bending device in advance. Power can also achieve the same effect. Industrial Applicability The present invention is capable of utilizing a roll mill for steel sheets, in particular, a reverse roll mill having a large opening degree of 24 201143922. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a side view showing an example of the structure of a rolling mill of the present invention. Fig. 2 is a perspective plan view showing an arrangement example of the upper and lower increasing bending means. Fig. 3 is a perspective plan view showing an arrangement example of the upper and lower increasing bending means. Fig. 4 is a side view showing another example of the structure of the rolling mill of the present invention. Fig. 5 is a view showing an example of the operation flow of the rolling method of the present invention. 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. 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. Fig. 8 is a view showing another example of the operation flow of the rolling method of the present invention. Fig. 9 is a view showing a time series change of the roll bending force or the like accompanying the operation flow of Fig. 8. Fig. 1 is a side view showing the construction of a prior art rolling mill. Figure 11 is a side view showing the construction of a prior art rolling mill. Figure 12 is a side elevational view showing the construction of a prior art rolling mill. Figure 13 is a side view showing the construction of a prior art rolling mill. 25 201143922 Figure 14 is a side view showing the construction of a prior art rolling mill. [Description of main component symbols] 1-1... Upper operation roller 1 - 2... Lower operation roller 2 - 1 ... Upper reinforcement roller 2-2 ... Lower reinforcement roller 3 - 1 ... operation Pro bearing housing 3 - 2... Lower operating rod bearing seat 4-1... Upper reinforcing roller bearing housing 4 - 2... Lower reinforcing roller bearing housing 5 - 1... Inlet protruding block 5-2. .. out side protruding block 5-3...inside side lower protruding block 5-4...out side lower protruding block 6-1...increasing bending device 6-2 on the inlet side...increased on the exit side Bending device 6-3...Increase bending device 6-4 from the side to the side... Increase the bending device 7-1 from the side of the exit side... Reduce the bending device 7-2 on the entry side... Reduce the bending device on the exit side 7-3...Into the side lower bending device 7-4...Outside side reduction bending device 8-1...Inlet side reinforcing roller balancing device 8-2...Outside reinforcing roller balancing device 9... Rack 10.. Rolled material 11.. Pressing device 12.. Rack window P... Rolling load a, b, c, d··.
Is、IB、IR...增加彎曲裝置輸出功率 DB、DS...減少彎曲裝置輸出功率 FB·.·親平衡力 fr...操作輥彎曲力 26Is, IB, IR... increase the output power of the bending device DB, DS... reduce the output power of the bending device FB···pro-balance force fr...the bending force of the operating roller 26