200406267 玖、發明說明： 【發明所屬之技術領域】 本發明與一種控制冷軋機壓軋之被軋材料形狀之形狀控 制方法及裝置有關。 【先前技術】 壓軋被軋材料之壓軋機，從製品之高品質化與提高生產 性之觀點，要求形狀控制之高精度化。壓軋機之形狀控制 ，為了壓軋機出侧之被軋材料之平坦度（板狀），因應壓軋機 出側之檢測形狀與目標形狀之形狀偏差，以演算求引動器 之操作量，調整引動器。 6段式壓軋機之引動器有工作輥彎機（WR彎機）、間歇輥彎 機（IMR脊機）、壓下定水平、點冷卻器。醫彎機、工歡彎 機具有使各輥彎曲之功能，利用輥之彎曲改變壓軋被軋材 料之寬度方向板之力量分布，控制板寬整體之形狀。 又壓下疋水平係分別設在壓軋機之作業側、驅動側之壓 下衣置之壓下位置（輥間隙）之差，操作此改變被軋材料之寬 度方向板之力量分布，以控制板寬整體之形狀。點冷卻器 係對壓軋機之工作輥（作業報）局部喷射純水或满滑油等冷 口 P ~媒改、交作業輥之熱冠，改變板寬方向壓軋力之分布 ，以控制局部伸長及複合形狀。 熱札機係例如曰本專利特開2〇〇ι_ΐ296〇8號公報所記載 …已知測疋板覓方向之局部過冷卻產生位置，用研削調小 對應局邛冷部產生位置部分之輥表面粗度之作業輥，冷卻 熱軋板，控制板寬方向之溫度分布。 85846 200406267 又如日本專利特開2001-73〇41號公報所記庫，已知為防 止板寬方向之溫度偏差附帶之變形之發生，求不發生變形 之中心部冷卻溫度與冷卻寬度，將冷卻水注入中心部區f 亚將空氣吹向邊緣區，進行溫度控制使板寬方向之溫度分 布於邊緣侧比中心部附近低溫，且使最高溫部位於邊緣部 與中心部間。 如此’於熱軋時因高溫致對被軋材料之硬度分布及板形 狀有很大之影響’故積極控制被軋材料之溫度分布。 【發明内容】 欲解決之譯^ /習知之技藝因冷軋比熱軋低溫故以為被軋材料之溫度對 形狀之影響小，以工作輥彎機、間歇輥彎機、壓下定水平 進行形狀控制。然而，僅能控制板寬整體之形狀，而有無 進订局σ|Μ申長及複合形狀，無法控制高精度形狀之問題。 本I明之目的在於提供一種冷軋機之形狀控制方法及裝 置，其係能抑制局部伸長及複合形狀之形狀不&，進行高 精度之形狀控制者。 也決课:題之方法 罢！發明之特徵為於冷軋機出側沿被軋材料之板寬方向配 複數空氣噴嘴’ &空氣喷嘴向被軋材料噴射空氣，用目 1狀與檢測形狀求得之形狀絕對值偏差與形狀空間偏差 射之空«作量，依該空氣操作量 凋正m數空氣喷嘴噴射之空氣量。 錄於本說明書’將被軋材料之板寬方向形狀區分為多數 85846 200406267 區域’檢測之同—區分之形狀目標值與形狀檢測值之偏差 柄為开/狀、'巴對值偏差’又將某區分之形狀絕對值偏差與其 他區刀之形狀'1巴對值偏差之偏差稱為形狀空間偏差(或形 狀位置偏差）。最好其他區分為某區分之相鄰之區分。 本發明因用目標形狀與檢測形狀求得之形狀絕對值偏差 舁开V狀工間偏差，求取複數空氣噴嘴向被軋材料噴射之* 編量，依該空氣操作量調整複數空氣噴嘴喷射之空： 量’故能抑制局部伸長及複合形狀之形狀不良，進行高精 度之被軋材料之形狀控制。 【實施方式】 發明之實施 “圖1係本發明一實施例’圖2係本發明之要部構成圖。圖] 係連績配置5台冷軋機之5架举列壓軋機之例。 圖1、圖2中’連續配置約〜第5架之5台冷乾機^七，向 箭示壓軋方向移送被軋材料’經第i〜第^u〜i5依序壓軋 。壓軋機11〜15為6段式，包括：相對之1對工作輕17、夾持 工作輕1 7之i對間歇姉ntemiUent rQli) ι 8及夹持間歇親^ 8 之 1 對背托輕（Backup roll) 19。 於第5架（最終一架η 5之出侧設置檢測被乳材料2形狀之 形=檢測輥3。形狀檢測輥3係如圖2所示，將被軋材料二之 板寬方向區分為多數區域i〜n，檢測各區域丨〜^之形狀◦又 於壓軋機15出側，距形狀檢測輥3之設置位置靠壓軋機⑸則 &被軋材料2之板寬方向（輥軸心方向），配置複數個（n個） 二氣i I 95。空氣喷鳴95配置於形狀檢測輕3之每一形狀檢 85846 200406267 測區域1〜η，向對應區域之被軋材料]噴射空氣。 形狀檢測器4輸入形狀檢測輥3 ^ 机之輸出信號變換為形狀檢 測信號，加於形狀控制裝置5與形 办狀頭不裝置10。形狀控制 裝置5輸入形狀設定裝置6之形狀 、 ^值與形狀檢測器4之 形狀檢測值（實際形狀值），演算板嘗 ^板見方向之形狀空氣操作量 ，供給彎機控制裝置81、壓下位w Μ" Μ &下位置控制裝置82、點冷卻控 制裝置83及空氣調整裝置84。 彎機控制裝置8 1控制工作輥i 7之 罕 之工作輥彎機與間歇輥1 8 之間㈣彎機’壓下位置控制裝置82操作背托輥19之壓下 位置、。又點冷卻控制裝置83從噴嘴94對工作輥17局部喷射 水或潤滑油專冷卻媒體，改變工作纟 又忭輥1 7之熱冠，改變板寬 方向之壓軋力之分布。 空氣調整裳置84係如圖2所示，具有調整整體流量之空氣 閥85及每n個空氣噴嘴95調整流量之n個空氣閥％，從設在 2終一架15出<則之η個空氣喷嘴95調整空氣喷射量，調整板 足方向之*里分布。空氣調整裝置84亦可以空氣操作裝置7 用手動操作。操作員邊看形狀顯示裝置1〇所顯示之實際形 狀（形狀檢測值），邊以空氣操作裝置7操作空氣調整裝置8 4。 其次說明形狀控制之動作。 弓機控制裝置81控制工作輥17之工作輥彎機（WR彎機）與 巧歇秦b 1 8之間歇輕彎機（imr彎機），塵下位置控制裝置 操作背托輥19之壓下位置。又點冷卻控制裝置83從喷嘴94 ’工作泰t 17局部喷射水或潤滑油等冷卻媒體，改變工作輥 17之熱冠，改變板寬方向之壓軋力之分布。因為此種WR- 85846 200406267 機、IMR彎機、定水平、 、 "、、έ々郃係習知技藝之控制所熟知 者，故名略詳細說明。 本發明係以最级一牟1 5 Ψαϊ 出側之空氣喷嘴95進行噴射空氣 控制形狀。複數空氧啥嘴Q ^ ” 旻数工乱貝麵95之噴射空氣控制如下。 (1)變更噴射空氣整體流量 強力噴射空氣之被軋材料2 _ 邛刀（區域），因板有伸長之 傾向故強力噴射空氣時板寬 攸見方向之空氣流量分布不均勻， 因此有板形狀局部伸長之情形。 =來自：狀檢輸之形狀檢測值之實際形狀顯示 視貫際形狀，使板寬方向空氣流量分布均勻， 以空氣閥85調整空氣整體之流量，控制板形狀。 (2)變更贺射空氣之板寬方向流量分布 由貫驗得知強力嘻私处* 強力貝射…部分有板形狀伸長之傾向， k弱之力育射空氣之部分有不伸長之傾向。利用此性 質控制形狀。 口才〗用此性 從形狀檢測器4之實際形狀值，產生 … 制裝置5辯識局部伸長’檢測對板寬方向之局部 °形狀控制裝置5操作空氣調整裝置84減 、2 板形狀。 〇此局楊之情形減少’可得穩定之 點冷卻係冷卻顯示伸長部分之卫作輥π 一… ，惟本發明俜；人外古 仃形狀控制 形狀。"Ρ末伸長（平直）部分之被軋材料2以控制板 形狀控制裝置5係如下以演算求空氣操作量 85846 -10- 200406267 由形狀榀測為4之形狀檢測值減形狀設定裝置6供給之形 狀目標值’求形狀偏差—。在此，i表示形狀檢測器4之區 或（Channel)將形狀偏差辨識形狀圖案，演算狐彎機 IMR芎機、壓下定水平控制之成分。 由形狀偏差Δεί減彎機與定水平之演算結果，抽出彎機及 I下定水平恶法去除之局部形狀偏差。將局部形狀偏差乏 晰推理演算，演算空氣操作量。 圖3係形狀控制裝置5之一例詳細結構。 將形狀檢測為4之實際形狀分解為以前處理機構53之鄰 接。卩/刀（區域）之差（X要素），與該部分之目標形狀之偏差（ρ 要素），分別進行演算。 弟i 1 i i+1之形狀偏差△ei-1、Δεί、Δεί + l係輸入偏差 演算部51之前處理機構53。前處理機構53求形狀偏差 與Aei之偏差，與形狀偏差△以與^以+ 1之偏差，加於分級機 構54A、54B。加於分級機構54A、54B之偏差成為形狀空間 偏差。 分級機構54A、54B輸出確信度。由分級機構54A、54B 求得之確信度係分別輸入推論機構55A、55B。推論機構55A 參考推論規則基礎56由形狀偏差△ 1與△ 之偏差決定控 制信號加於評估部57。又推論機構55B參考推論規則基礎56 由形狀偏差Δεί與Δεί+1之偏差決定控制信號加於評估部57。 一方面’將形狀絕對值偏差之形狀偏差輸入ρ要素之 形狀絕對值偏差演算部52之分級機構54C，求出確信度。推 哪機構5 5 C參考推論規則基礎5 6由形狀偏差△ ei決定控制信 85846 -11- 200406267 號加於評估部57。於評估部57求乏晰推理演算之重 估之控制信號輸入空氣量演算部58以 、。、 圖锡分級機構54-例之詳細圖。仏作[ 分級機構54具有分類要素61、62、63 (形狀偏差信號）分為複數級之用者。分類要素6^ = 二其:大以橫軸表示輸入信號1之大小，縱輛表示輪出之： :度之大小者。分類要素61之分類函數以實線表示，复他 为類要素之分類函數以虛線表示。 、 分類要素係輸入信號！之值若為a :之:為，，分類要素62 — ." 之值為°，又分類要素63係、輪人信號ί之值 右為a則表不輸出值為零。 由於如此用目標形狀與檢測形狀求得之形狀絕對值 ”先狀空間偏差求空氣噴嘴向被軋材料噴射之空氣操作量 依此空氣操作量調整複數空氣喷嘴喷 知生，丨β * 工礼里，s文月& 才P制局部伸長及複合形 J大之开/狀不良，進仃鬲精度之被軋 材枓之形狀控制。 能發揮此種效果之理由雖未明確解析，惟可推認大 如下之原因。 〈壓軋溫度-般比室溫為高，又有某程度張力加於 /、出侧，故可推測發生如下之現象。於壓軋機架15出 :、軋材料2局部急速冷卻時，被冷卻部分收縮，其 張力分布增加。 。 破々部部分之張力高於周圍，故其部分特別被壓， 85846 -12- 200406267 之張力分布高，故因張力 板整體之溫度下降，結果 為伸長之形狀。或因被冷卻部分 伸長’至其後板被捲成圈狀前， 成伸長形狀。 減弱：生局部伸長部分之冷卻，即減少其部分之張力分 布，附帶壓軋機正下方之壓 力之方向。 卜里局邛減少，有利於形狀張 圖5係空氣喷射與實際形 口 炙關係圖。圖5係依形狀檢測 、= 曰之貫際形狀，描繪空氣流量調整前（流量最大）及調整後（ :里"2)之貫際形狀者。可知由增加空氣流量，空氣喷射喷 ^位置之壓軋材料板形狀伸長之情形。 利用上述被軋材料之性質’由減少板形狀伸長部分之空 氣流量，增加張力部分之空氣流量，即可改善板形狀。 如以上’本發明因用目標形狀與檢測形狀求得之形狀絕 對值偏差與形狀以 1偏差求空氣噴嘴向被軋材㈣射〇 氣操作量，依此空氣操作量調整複數空氣噴嘴喷射之空氣 量’故能抑制局部伸長及複合形狀之形狀不良，進行高精 度之被軋材料之形狀控制。 又依本發明因可不要點冷卻，故可消除壓軋後材料之生 銹問題及冷卻劑濃度減低之問題。 又上述實施例係以乏晰推理演算求空氣操作量，惟可明 瞭用其他演算求取亦能同樣進行。 發明之效杲 依本發明因容易控制板寬方向之局部板形狀，故可壓軋 板寬方向穩定形狀之製品，而可提高製品形狀精密度。 -13- 85846 200406267 【圖式簡單說明】 圖1係本發明一實施例之構成圖。 圖2係本發明一實施例之要部構成圖。 圖3係本發明之形狀控制部一例構成圖。 圖4係本發明之分級機構一例之構成圖。 圖5係說明本發明之效果特性圖。 【圖式代表符號說明】 2 壓軋材料 3 形狀檢測輥 4 形狀檢測器 5 形狀控制裝置 6 形狀設定裝置 11 〜15 壓軋架 81 彎機控制裝置 82 壓下位置控制裝置 84 空氣調整裝置 95 空氣喷嘴200406267 (1) Description of the invention: [Technical field to which the invention belongs] The present invention relates to a shape control method and device for controlling the shape of a material being rolled by a cold rolling mill. [Previous technology] A rolling mill for rolling a material to be rolled requires high precision in shape control from the viewpoint of high-quality products and improved productivity. For the shape control of the rolling mill, in order to flatness (plate shape) of the material to be rolled on the output side of the rolling mill, according to the shape deviation between the detected shape on the output side of the rolling mill and the target shape, the operation amount of the actuator is calculated by calculation to adjust the actuator. . The actuators of the 6-stage rolling mill include work roll bender (WR bender), intermittent roll bender (IMR ridge bender), fixed-level and point cooler. The medical bending machine and the industrial bending machine have the function of bending each roll, and use the bending of the roll to change the force distribution of the width direction plate of the rolled material to control the overall shape of the plate width. The reduction level is the difference between the reduction position (roll gap) of the reduction clothing set on the working side and the driving side of the rolling mill. This operation changes the force distribution of the width direction board to control the board. Wide overall shape. The spot cooler is used to locally spray cold water such as pure water or full oil on the work rolls (work report) of the rolling mill. P ~ media is changed to the hot crown of the work rolls to change the distribution of the rolling force in the width direction of the plate to control local Elongated and compound shapes. The hot stamping machine is described in, for example, Japanese Patent Laid-Open No. 2000-ΐ296〇8 ... It is known that the local overcooling generating position of the measuring plate is known, and the surface of the roller corresponding to the generating position of the local cooling part is reduced by grinding. Coarse work rolls cool the hot rolled plate and control the temperature distribution in the width direction of the plate. 85846 200406267 Another example is the library recorded in Japanese Patent Laid-Open No. 2001-73〇41. It is known to prevent the deformation accompanying the temperature deviation in the width direction of the plate. The water is injected into the central region f. The air is blown toward the edge region, and the temperature is controlled so that the temperature in the width direction of the plate is lower on the edge side than on the vicinity of the central portion, and the highest temperature portion is located between the edge portion and the central portion. In this way, 'the high temperature causes a great influence on the hardness distribution and plate shape of the rolled material during hot rolling', so the temperature distribution of the rolled material is actively controlled. [Summary of the invention] The translation to be solved ^ / Known technology Because cold rolling is lower than hot rolling, it is assumed that the temperature of the material being rolled has a small effect on the shape, and shape control is performed by a work roll bender, intermittent roll bender, and a fixed level of reduction. . However, only the overall shape of the board width can be controlled, and there is no problem with the σ | M order length and composite shape, and it cannot control the high-precision shape. The purpose of the present invention is to provide a method and a device for controlling the shape of a cold rolling mill, which are capable of suppressing local elongation and the shape mismatch of a composite shape, and performing high-precision shape control. Also decided: the method of the question The invention is characterized in that a plurality of air nozzles are provided along the width direction of the rolled material at the exit side of the cold rolling mill, and the air nozzle sprays air to the rolled material, and the absolute value deviation and shape of the shape obtained by using the shape 1 and the detected shape are obtained. The amount of space shot by the space deviation, the amount of air sprayed by the air nozzle according to the air operation amount. Recorded in this manual, “Dividing the shape of the rolled material in the width direction into a majority of 85846 200406267. The area of detection is the same—the difference between the difference between the shape target value and the shape detection value is on / shape. The deviation of the absolute value deviation of the shape of a certain section from the deviation of the value of 1 bar pair of the shape of the other area knife is called the shape space deviation (or shape position deviation). Preferably, the other divisions are adjacent ones of a certain division. In the present invention, the deviation of the absolute value of the shape obtained from the target shape and the detected shape is used to open the V-shaped inter-work deviation, to obtain the * amount of the plurality of air nozzles spraying on the rolled material, and to adjust the number of jets of the plurality of air nozzles according to the air operation amount. The amount of empty: it can suppress the local elongation and the shape defect of the compound shape, and control the shape of the rolled material with high precision. [Embodiment] The implementation of the invention "Fig. 1 is an embodiment of the present invention 'Fig. 2 is a structural diagram of the main part of the present invention. Fig.] Is an example of 5 cold rolling mills equipped with 5 cold rolling mills. 1. In Figure 2, '5 consecutively arranged about 5 cold dryers of ~ 5th frame are used to move the material to be rolled in the direction of the arrow', and they are sequentially rolled through the ith to ^ u ~ i5. Rolling mill 11 ~ 15 is a 6-segment type, which includes: 1 pair of work light 17, clamp work light 1 7 pair of intermittent sisters ntemiUent rQli) ι 8 and clamping intermittent couple ^ 8 of 1 pair of back support light (Backup roll) 19. On the 5th frame (the final one η 5 is set to detect the shape of the material 2 to be tested = detection roller 3. The shape detection roller 3 is shown in Figure 2 to distinguish the width direction of the rolled material 2 For most areas i ~ n, the shape of each area 丨 ~ ^ is detected. Also on the exit side of the rolling mill 15, the position from the shape detection roll 3 is set by the rolling mill rule & the width direction of the rolled material 2 (roller axis). Heart direction), a plurality of (n) two gas i I 95 are arranged. The air spurt 95 is arranged in each shape detection light 3 of the shape detection light 85846 200406267 to the measurement area 1 ~ η, corresponding to The rolled material in the field] spray air. The shape detector 4 inputs the shape detection roller 3 and the output signal of the machine is converted into a shape detection signal, which is added to the shape control device 5 and the shape head device 10. The shape control device 5 inputs the shape Set the shape and value of the device 6 and the shape detection value (actual shape value) of the shape detector 4 and calculate the shape air operation amount in the direction of the plate, and supply it to the bending machine control device 81 and the pressing position w Μ " Μ & amp Lower position control device 82, spot cooling control device 83, and air conditioning device 84. Bender control device 8 1 controls the work roll i 7 and the rare work roll bender and intermittent roll 1 8. The control device 82 operates the pressing position of the back-up roller 19. The cooling control device 83 also sprays water or lubricating oil specially for the cooling medium from the nozzle 94 to the work roller 17 to change the working crown of the roller 17. The distribution of the rolling force in the width direction of the plate. The air adjustment device 84 is shown in Fig. 2. It has an air valve 85 that adjusts the overall flow rate and n air valve percentages that adjust the flow rate for every n air nozzles 95. The last 15 out < Then n air nozzles 95 adjust the amount of air spray and adjust the distribution in the direction of the foot of the board. The air adjustment device 84 can also be manually operated by the air operation device 7. The operator looks at the actual display of the shape display device 10 Shape (shape detection value), the air adjustment device 8 is operated by the air operating device 7. Next, the operation of the shape control will be described. The arc machine control device 81 controls the work roll bending machine (WR bending machine) and Qiao Xie Qin of the work roll 17. For intermittent light bending machine (imr bending machine) of b 18, the dust position control device operates the pressing position of the back support roller 19. In addition, the cooling control device 83 sprays cooling medium such as water or lubricating oil from the nozzle 94 ′ working section t 17 locally, changes the heat crown of the work roll 17, and changes the distribution of the rolling force in the width direction of the plate. Because this type of WR-85846 200406267 machine, IMR bending machine, level setting, ", and 々 郃 are well-known for the control of conventional techniques, their names are described in detail. In the present invention, the shape is controlled by ejecting air with the air nozzle 95 on the exit side of the first stage 15 5αϊ. The control of the spray air of the complex air oxygen mouth Q ^ 旻 旻 旻 乱 乱 95 surface is as follows. (1) Change the overall flow of the spray air and force the rolled material of the spray air 2 _ The trowel (area), due to the tendency of the board to stretch. Therefore, when the air is strongly sprayed, the air flow distribution in the width direction of the board is not uniform, so the board shape may be partially stretched. = From: The actual shape of the shape detection value of the test input shows the visible shape, so that the air in the board width direction The flow distribution is uniform. Adjust the overall air flow with the air valve 85 to control the shape of the board. (2) Change the flow width distribution of the radiant air from the board. Tendency, the part of k weak force that radiates air has a tendency not to stretch. Use this property to control the shape. Eloquence uses this property from the actual shape value of the shape detector 4 to produce ... Part of the board width direction. The shape control device 5 operates the air-conditioning device 84 minus and 2 the shape of the board. 〇 This situation reduces the number of cases. The guard roll π a ..., but the present invention does not control the shape of the human ancient shape. &Quot; The end of the rolled (straight) part of the rolled material 2 to control the plate shape control device 5 is as follows to calculate the air operation The amount 85846 -10- 200406267 is obtained by subtracting the shape target value provided by the shape setting device 6 from the shape detection value measured as a shape of 4 to determine the shape deviation. Here, i represents the area of the shape detector 4 or the (Channel) deviation of the shape. Identify the shape and pattern, calculate the components of the fox bender IMR machine, and reduce the level control. Based on the calculation results of the shape deviation Δεί reduce the bending machine and the level, extract the local shape deviation removed by the bender and the fixed level evil method. The shape deviation is lacking in inference calculation to calculate the amount of air operation. Figure 3 is a detailed structure of an example of the shape control device 5. The actual shape detected as 4 is decomposed into the adjacency of the previous processing mechanism 53. The difference between 卩 / knife (area) ( X element), and the deviation (ρ element) from the target shape of this part are calculated separately. The shape deviations Δei-1, Δεί, Δεί + l of the i 1 i i + 1 + input deviation calculation unit 51 Pre-processing mechanism 53. The pre-processing mechanism 53 calculates the deviation between the shape deviation and Aei, and the shape deviation △ and ^ and +1, and adds it to the classification mechanisms 54A and 54B. The deviation added to the classification mechanisms 54A and 54B becomes the shape space Deviations. The grading mechanisms 54A and 54B output the degree of confidence. The certainty obtained by the grading mechanisms 54A and 54B is input to the inference mechanism 55A and 55B respectively. The inference mechanism 55A refers to the inference rule base 56 and is controlled by the shape deviation △ 1 and △. The signal is added to the evaluation unit 57. The inference mechanism 55B also refers to the inference rule base 56. The control signal is added to the evaluation unit 57 based on the deviation of the shape deviation Δεί and Δεί + 1. On the one hand, the shape deviation of the absolute value deviation of the shape is input to the grading mechanism 54C of the absolute value deviation calculation unit 52 of the ρ element to obtain the degree of certainty. Which mechanism is inferred 5 5 C Reference inference rule base 5 6 The shape deviation Δ ei determines the control letter 85846 -11- 200406267 to the evaluation unit 57. The re-evaluation control signal for the lack of clear reasoning calculation is requested in the evaluation section 57 and input to the air volume calculation section 58. Figure 54-Detailed illustration of a tin classification mechanism. Operation [The grading mechanism 54 has classification elements 61, 62, and 63 (shape deviation signals) divided into plural levels. The classification element 6 ^ = 2 is: the horizontal axis represents the size of the input signal 1, and the vertical vehicle represents the rounds out:: the size of the degree. The classification function of the classification element 61 is indicated by a solid line, and the classification function of another classification element is indicated by a dotted line. The classification elements are input signals! If the value is a: of: yes, the value of the classification element 62 —. &Quot; is °, and the value of the classification element 63 system, the round signal ί is a, and the output value is zero. Because the absolute value of the shape obtained from the target shape and the detected shape is obtained in this way, the spatial deviation of the first shape is used to find the air operation amount of the air nozzle to spray the rolled material. According to this air operation amount, the plural air nozzles are ejected. s Wenyue & P made only partial elongation and complex shape J large opening / shape failure, control the shape of the rolled material into the accuracy of the roll. Although the reason for this effect has not been clearly analyzed, it is presumed to be large. The reason is as follows. 〈The rolling temperature is generally higher than room temperature, and there is a certain degree of tension on / outside, so it can be presumed that the following phenomenon occurs. It is output in the rolling stand 15 :, the rolling material 2 is rapidly cooled locally. When the part being cooled shrinks, the tension distribution increases. The tension in the broken part is higher than the surrounding, so its part is particularly compressed. The tension distribution of 85846 -12- 200406267 is high, so the temperature of the tension plate as a whole decreases. It is an elongated shape. Or it is stretched by the cooled part until its back plate is rolled into a loop shape. Weakening: The cooling of the locally elongated part is to reduce the tension distribution of the part. The direction of the pressure directly below the rolling mill. The reduction of the brining zone is beneficial to the shape. Figure 5 is the relationship between the air jet and the actual shape. Figure 5 is based on the shape detection and the shape of the cross-section. It depicts the air flow before adjustment. (The largest flow rate) and the adjusted shape after the adjustment (: inside " 2). It can be seen that the shape of the rolled material plate is elongated by increasing the air flow rate and the air jet position. Using the properties of the rolled material described above The shape of the plate can be improved by reducing the air flow rate of the elongated part of the plate shape and increasing the air flow rate of the tension part. As described above, the present invention uses the target shape and the detected shape to determine the absolute value deviation of the shape and the shape. The material to be rolled is injected with 0 gas operation amount, and the amount of air injected by the plurality of air nozzles is adjusted according to the air operation amount. Therefore, it is possible to suppress local elongation and shape defects of the composite shape, and to control the shape of the material to be rolled with high precision. The invention does not need to be cooled, so the problem of rusting of the material after rolling and the problem of reducing the concentration of coolant can be eliminated. The calculation of the air operation amount is calculated, but it is clear that the calculation can also be performed by other calculations. The effect of the invention According to the present invention, because it is easy to control the local plate shape in the plate width direction, the product with a stable shape in the plate width direction can be rolled, and Can improve the precision of product shape. -13- 85846 200406267 [Brief description of the drawings] Figure 1 is a structural diagram of an embodiment of the present invention. Figure 2 is a structural diagram of the main parts of an embodiment of the present invention. Figure 3 is a schematic diagram of the present invention. Fig. 4 is a structural diagram of an example of a shape control unit. Fig. 4 is a structural diagram of an example of a grading mechanism of the present invention. Fig. 5 is a characteristic diagram illustrating the effect of the present invention. [Description of Representative Symbols of Drawings] 2 Pressed Material 3 Shape Detection Roll 4 Shape Detector 5 Shape control device 6 Shape setting device 11 to 15 Roll stand 81 Bending machine control device 82 Press position control device 84 Air adjustment device 95 Air nozzle
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