TW201125654A - Steel strip bending measurement in rolling process and steel strip fabrication method - Google Patents

Steel strip bending measurement in rolling process and steel strip fabrication method Download PDF

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TW201125654A
TW201125654A TW99101197A TW99101197A TW201125654A TW 201125654 A TW201125654 A TW 201125654A TW 99101197 A TW99101197 A TW 99101197A TW 99101197 A TW99101197 A TW 99101197A TW 201125654 A TW201125654 A TW 201125654A
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steel strip
image
steel
rolled
production
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TW99101197A
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Chinese (zh)
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TWI362301B (en
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yong-yi Yang
Zhong-Mei Chen
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China Steel Corp
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Abstract

A kind of steel strip bending measurement in rolling process and steel strip fabrication method, which includes a steel strip production step, making the rolling-standby steel strip to be fabricated along a production line; a steel strip image-capturing step, which an image capture device above the production line captures images of the rolling-standby steel strip; a coordinates conversion step, which converts the captured images of the rolling-standby steel strip through coordinate conversion to obtain realistic space coordinates relative to the production line; a data-correction calculation step, capable of calculating a difference value between the realistic space coordinate and a central line of the production line; and a steel strip recovery step, capable of adjusting the rolling force not to bend the steel strip and to produce steel strip straight according to a calculated correction data. The invention uses real-time images to obtain and calculate to have a calculated correction data for adjusting the rolling force against the steel strip; it can increase production quality of the steel strip, reduce the possibility of trim process in the downstream production line and enhance the production capacity to lower production cost.

Description

201125654 六、發明說明: f發明所屬之技術領域】 本發明是有關於-種生產方法,特別是指—種軋延 帶彎曲測量及鋼帶生產方法。 f先前技術】 目前的鋼帶生產過程,大抵是鋼胚經加熱爐加熱後沿生 產線送出,經粗軋延、精軋延後得到所需厚薄的鋼帶,之後, 再盤捲成鋼捲以利進行後續作業,例如輸送、再加工等。 在鋼胚沿生產線送出,經粗軋延、精軋延成鋼帶沿生產 線產出的過程中’鋼帶彎曲是重大製程缺陷之―,造成鋼帶 •f曲的原因很多,主要有鋼胚來料楔形、出爐鋼胚兩側溫 差、軋輥傾斜輥隙不對稱,與鋼胚咬入不對中等等,除了合 進一步導致鋼帶邊緣摺疊、爽痕或邊裂等缺陷,或是盤卿 成的鋼捲外觀不平整,容易在搬運的過程中受到損壞, 後續的作業必須增加切除不平直或受損的部分的額外製程 之外’戚重時甚至會導致設備損壞、生產線中斷 響生產效能。 心 為了因應鋼帶心㈣題,目前的生產過程都是建立一 =生產線監控系統即時量測計算生產的鋼帶的彎曲量,並由 得到的彎曲量即時調 π仅作用在鋼帶的軋延力道,進而生產出 .,,、罅曲且平直地沿生產線行進的鋼帶。 現打的生產線監控系統有以雷射掃瞒裝置 緣感測器,以及線型摄爭嬸兵担 ' 攝景/機為架構的寬度計二種,其中,邊 緣感測器是利用雷細德ρ壯¥α 用田射知描裝置將雷射光照射在沿生產線行 201125654 進的鋼帶邊緣’並以光導接收反射光進而_鋼帶的邊緣位 置’從而得知生產的鋼帶的彎曲量以及行進的偏移量·而寬 度計則是沿生產線安裝至少二或三部以上並可以伯測沿生 產線行進的鋼帶邊緣的線型❹彡機,制賴等線型攝影機 揭取的影像利用立體量測原理計算出鋼帶寬度,從而得知生 產的鋼帶的彎曲量以及行進的偏移量。 由於鋼帶生產中沿生產線行進時有橫向偏移() 與旋轉(_ional)的變動,因此,上述僅量測鋼帶單一邊 緣即計算出彎曲量與偏移量的邊緣感測器及寬度計,其實得 到的彎曲量與偏移量並非鋼帶實際的彎曲量與偏移量。也因 此’目前業者多是利用至少兩部寬度計或是邊緣感測器,分 別量測鋼帶兩邊緣並計算後,再合併得到的資料做為實際生 產鋼帶的彎曲量與偏移量,進而調校軋延力道以生產出無彎 曲且平直地沿生產線行進的鋼帶。 雖…、:利用夕。卩寬度汁或是邊緣感測器可以即時量測得 知鋼帶實際的彎曲量與偏移量,但因為安裝多部寬度計或是 ,緣感測器所需的安裝空間超過生產線所能容納的空間甚 :’而且各寬度計的中心線對正不易,只要稍有偏差,對於 量測結果影響甚鉅,所以目前的鋼帶生產方法需要再設計, f別是關於即時谓測、計算生產之鋼帶的彎曲量、偏移量的 仏α即時調校作用在鋼帶的乾延力量’提升生產的鋼帶 °。質’減少下游生產線的裁修,增進產能、降低生產成本。 【發明内容】 因此’本發明之目的’即在提供-種可以提高產能的軋 201125654 延中鋼帶彎曲測量及鋼帶生產方法。 ;疋本發明軋延中鋼帶彎曲測量及鋼帶生產方法包含 一鋼帶產出步驟、 驟鋼帶取像步驟、一座標轉換步驟、一校 正資料計算步驟’及一鋼帶回復步驟。 、4鋼帶產出步驟是令—待軋延鋼帶沿-生產線行進,依 序通過該生產線的_檢測段’與—以札延機具作用該鋼帶通 過之部分的軋延段。201125654 VI. Description of the invention: Technical field to which the invention belongs. The invention relates to a production method, in particular to a method for measuring the bending of a rolling strip and a method for producing a steel strip. f Prior art] The current steel strip production process is basically that the steel embryo is sent along the production line after being heated by the heating furnace. After the rough rolling and finishing rolling, the required thick steel strip is obtained, and then the coil is rolled into a steel coil. Subsequent operations such as transportation, reprocessing, etc. In the process of steel slabs being sent along the production line, the steel strip bending is a major process defect in the process of rough rolling and finishing rolling along the production line. There are many reasons for the steel strips. The wedge shape of the incoming material, the temperature difference between the two sides of the steel, the asymmetrical nip of the roll, the misalignment with the steel embryo, etc., in addition to the defects such as folding, frosting or edge cracking of the edge of the steel strip, or the disc The appearance of the coil is not smooth, and it is easy to be damaged during the handling process. Subsequent operations must increase the extra process of removing the uneven or damaged part. When the weight is heavy, the equipment may be damaged and the production line may be interrupted. In order to cope with the steel belt heart (four), the current production process is to establish a = production line monitoring system to measure the bending amount of the steel strip produced by the instantaneous measurement, and the instantaneous bending of the obtained bending amount only acts on the rolling of the steel strip. Force, and then produce a steel strip that travels along the production line. The current production line monitoring system has two types: the laser broom device edge sensor and the line type camera ' 担 ' 'view/machine-based width meter. Among them, the edge sensor uses the Leder ρ Zhuang ¥α uses the field-shooting device to illuminate the edge of the steel strip along the production line 201125654 and receive the reflected light and then the edge position of the steel strip with the light guide to know the bending amount and travel of the produced steel strip. Offset and width meter is a linear type of machine that installs at least two or more strips along the production line and can track the edge of the strip along the production line. The image taken by the line camera uses the principle of stereo measurement. The width of the steel strip is calculated to know the amount of bending of the produced steel strip and the offset of travel. Since there is a lateral offset () and a rotation (_ional) variation in the production of the steel strip along the production line, the edge sensor and the width meter that calculate the bending amount and the offset amount are measured only on the single edge of the steel strip. In fact, the amount of bending and offset obtained is not the actual amount of bending and offset of the steel strip. Therefore, the current industry mostly uses at least two width gauges or edge sensors to measure the two edges of the steel strip and calculate them, and then combine the obtained data as the bending amount and offset of the actual production of the steel strip. The rolling force is then calibrated to produce a steel strip that runs unobstructed and straight along the production line. Although...,: use the evening.卩 Width juice or edge sensor can instantly measure the actual bending amount and offset of the steel strip, but because of the installation of multiple width gauges, the installation space required by the edge sensor can exceed the capacity of the production line. The space is very: 'And the center line alignment of each width meter is not easy, as long as there is a slight deviation, the measurement results have a great impact, so the current steel strip production method needs to be redesigned, f is about instant pre-measurement, calculation production The bending amount of the steel strip and the offset of the 仏α are instantly adjusted to the effect of the dry extension of the steel strip' to increase the steel strip produced. Quality reduces the cutting of downstream production lines, increasing production capacity and reducing production costs. SUMMARY OF THE INVENTION Therefore, the object of the present invention is to provide a bending method for measuring the bending of a steel strip in 201125654 and a method for producing a steel strip. The method for bending and measuring the steel strip in the rolling of the present invention comprises a steel strip production step, a steel strip taking step, a standard conversion step, a calibration data calculation step, and a steel strip recovery step. The 4 steel strip production step is to make the steel strip to be rolled along the production line, passing through the _detection section of the production line and the rolling section of the portion through which the steel strip passes.

相帶取像步驟是用—對應設置於該生產線上方的影 像擷取裳置操取該檢測段的影像。 4座‘轉換步驟是以—影像處理裝置根據該鋼帶取像 步驟擷取的影像得到_鋼帶影像外形,並將該鋼帶影像外形 的衫像座標轉換為—對應該生產線的實際”座標。 該校正資料計算步驟是計算該實際空間座標與該生產 線的-生產線中心線的差值,得到_校正資料。 ^㈣1^㈣是依據該校正資料調整該軋延機具作 用於該待軋延鋼帶的軋延力量,使該待軋延鋼帶不f曲且實 質平直地沿該生產線行進。 本發明之1 力效在於:料—影像麻I錢取在該生產 線的檢測段上該待軋延鋼帶的影像,再經過座標轉換步驟與 校正資料計算步驟將齡㈣像運算成對應於生產線的實 際校正資料,而可即時以校正資料調校軋延力道,而生產出 不彎曲且實質平直地沿該生產線行進的鋼帶。 【實施方式】 有關本發明之前述及其他技術内容、特點與功效,在以 201125654 下配〇參考圖式之一個較佳實施例的詳細說明中,將可清楚 的呈現。 在本發明被詳細描述之前,要注意的是,在以下的說明 内谷中,類似的元件是以相同的編號來表示。 參閱圖I 2,本發明軋延令鋼帶蠻曲測量及鋼帶生產 方法之帛車交佳貫施例依序包含一鋼帶產出步冑】1、一 鋼帶取像步驟12、-座標轉換步驟13、—校正資料計算步 驟14,及一鋼帶回復步驟15。 該鋼帶產出步驟U是令一待乳延鋼帶2自加熱爐產出 後經-生產線3沿生產方向少行進,其中,該生產線3具有 -檢測段31與-以—軋延機具7作用該待札延鋼帶2通過 之部分的乳延段32,該待軋延鋼帶2依序通過該檢測段Μ 與該軋延段32,較佳地’該待軋延鋼帶2在該生產線3的 行進速度約是每秒4.25米。 當該待軋延鋼帶2依序通過該檢測段31與該礼延段Μ 時進行該鋼帶取像步驟12,以一影像操取裝置4擷取該生 產線3的檢職31的影像,較佳地,該影軸取裝置4架 設在該檢測段31的生產線中(線Z1正上方,在架設該影 像願取裝置4時,依該影㈣取裝置4的取像範圍二: :離:待軋延鋼帶2的高度’並利用錯垂線輔助調整該影像 操取裝置4對準該生產線中心線Z1,使該影像掏取裝置* 摘取的影像具對稱性,在本實_中,該影像㈣裝置* 具!一面型電荷耗合元件,另外,該待軋延鋼帶2利用自身 因南熱所發出的光作為光源,供該影像掏取裝置*取像,其 201125654 1速Γ::Γ延鋼帶2在該生產線3每秒4.25米的行 進速度,該影像操取裝置4的取像頻率為每秒4張。仃 化單m標轉換步驟13 ’利用-具有-影像數位 :與一衫像處理技術單元的影像處理裝置5進 ==標轉換,該影像數位化單元 =; 位化成數位影像後,經該影像處理』 物件,接將數位影像區分為亮區與暗區影像 帶,傻外η… 出該待軋延鋼帶2的鋼 &二μ二鋼帶影像外形的影像座標㈣至—對 應a生產線3的貫際空間座 1 空間座標。 π于到_帶影像外形的實際 配合參閱圖3、4,装由犯 ^ ^ ^ ^ ^ ^,= ^ = έ ^ ίΚνΜ ^ ^ :換’其中,,,垂直於“ 平方向x,少轴即為該待軋延鋼帶2的生產方6 °少 是該影像娜裝置4水平 Μ 精度幂次值命$直方向座標點-是量测 致。 ^影像座標與實際空間座標會愈趨向一 會將财出該待軋延鋼帶2的首端時,便 =:ΓΓ_儲存至該影像處理裝置二之 理技—該二 2完整的鋼帶影像外:的積實 貧際工間座標;另外,因影像的一 201125654 個=所涵蓋的實際空間範圍报大,為求料在計算 2外㈣邊緣影像座㈣以次像素計算 座標的精準度。 风斤I味二間 在以該座標轉換步驟丨3 ^ 13付到該魏延鋼帶2完整 際二間座標後,以該校正 属 m曾“ t算步驟14經該影像處理裝 锢德由⑯ 像外形的貫際空間座標得到- 二= 算該鋼帶中心線22與生產線中心線" 正資偏Γ均距離得到該待軋延鋼帶2相對該生產線3的校 正資料的中心偏移量。 x 並且’利用該鋼帶中心峻7? 7, ^ M 綠22的頭尾連接成-假想連線 ,疋義該假想連線Z3與該鋼帶、^ ^ ^ ^ 過預1準值時為該待乳延鋼帶2有彎曲外型缺陷,… …·.、疋在該Λ轴上的待軋延鋼帶2中心仞5? e 乾ίί㈣9 ^ 2中〜位置座標,該待 心位置相對該假想連線Ζ3最遠點的座標是 至該假想連線Ζ3的距離是該待軋延㈣ 另一校正資料的弯曲量C,且該弯曲量 C: \xc-mxyc. b\ V7 + m" 驟15 ’依據該校正資 772疋s亥假想連線Z3的斜率,&是截距 參閱圖2,最後進行該鋼帶回復 料計算步驟14得到㈣曲量,即時調整在該生產線3的乾 延段32的該乾延機具7作用於該待軋延鋼帶2的乳較71 角度,以調整該軋延機具7的軋輥71兩側的水平高度差, 來修正該待軋賴帶2f㈣弧形狀況,並輯該校正資料 201125654 什算步驟14得到的中心偏移量以該軋延機具7,來導正該 待軋延鋼帶2的偏移問題,使該待軋延鋼帶2的彎曲回復且 實質平直地沿該生產線3行進》 本發明軋延中鋼帶彎曲測量及鋼帶生產方法在該待軋 延鋼帶2產出後依序通過該生產線3的檢測段31與軋延段 32,在通過該檢測段3丨時以該影像擷取裝置4進行鋼帶取 像步驟12以操取在該檢測段31上該待軋延鋼帶2的影像, 再經過座標轉換步驟13與校正資料計算步驟14將擷取的鋼 帶影像經該影像處理裝置5運算處理,得到該待軋延鋼帶2 對應於生產線3的實際校正資料,供即時以校正資料調校軋 延力道’而生產出不彎曲且實質平直地沿該生產線3行進的 鋼帶。 參閱圖1、5,本發明軋延中鋼帶彎曲測量及鋼帶生產 方法之-第二較佳實施例是與該第一較佳實施例相似,其不 同處在於在實施鋼帶取像步驟12、座標轉換步驟13 '校正 貝料计算步驟14之前’須先實施—座標對應函數取得步驟 16 ° 該座標對應函數取得步驟16需先架設一介於該影像擷 取裝置4與該生產線3的檢測段31間的校正裝置6,該校 正裝置6包括一在生產線中心線Z1沿生產方向少設置且呈 有多數固定間距之第一孔洞611的校正架6卜與一垂直該 校正架61設置且具有多數固定間距之第二孔洞621的校正 尺62’該校正架61的該等第一孔洞61供該校正尺Μ螺設, 之後該影像獅裝置4對在該檢測段31上㈣校正裝置6 201125654 取像,該影像中的該校正裝置6需涵蓋該影像擷取裝置4 的取像範圍41’經該影像處理裝置5計算該等第二孔洞621 的影像座標與實際空間座標的對應關係’後將該校正尺62 垂直沿該生產方向少移動,重複得到新位置的該校正尺62 之多數第二孔洞621的影像座標與實際空間座標間的對應 關係,在涵蓋該影像擷取裝置4的取像範圍41後,得到一 供該影像處理裝置5進行座標轉換的完整對應函數。The phase-taking method is to capture the image of the detection segment by using an image corresponding to the image set above the production line. The 4-seat conversion process is based on the image captured by the image processing device according to the image taken by the strip taking step, and the image of the image of the strip image is converted into the actual coordinate of the production line. The correction data calculation step is to calculate the difference between the actual space coordinate and the center line of the production line of the production line, and obtain the _ correction data. ^(4) 1^(4) is to adjust the rolling machine to act on the steel to be rolled according to the correction data. The rolling force of the belt causes the steel strip to be rolled to travel along the production line without being curved and substantially straight. The effect of the invention is that the material-image is taken on the detection section of the production line. Rolling the image of the steel strip, and then calculating the age (4) image into the actual correction data corresponding to the production line through the coordinate conversion step and the correction data calculation step, and can immediately adjust the rolling force force with the correction data, and produce the non-bending and substantial A steel strip that travels straight along the production line. [Embodiment] The foregoing and other technical contents, features, and effects of the present invention are assigned to one of the reference drawings at 201125654. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT(S) In the detailed description of the present invention, it is to be noted that in the following description, similar elements are denoted by the same reference numerals in the following description. The invention relates to a method for measuring the bending of a steel strip and a method for producing a steel strip, and the method for producing a steel strip includes a step of producing a steel strip, a step of taking a steel strip, and a step of converting the coordinate of the strip. - a calibration data calculation step 14 and a steel strip recovery step 15. The steel strip production step U is such that a waiting duct steel strip 2 is produced from the heating furnace and then travels through the production line 3 in the production direction less, wherein The production line 3 has a detecting section 31 and a rolling section 32 for the portion of the steel strip 2 to be passed by the rolling tool 7, and the steel strip 2 to be rolled passes through the detecting section Μ and the rolling Section 32, preferably 'the speed of travel of the strip 2 to be rolled in the line 3 is about 4.25 meters per second. When the strip 2 to be rolled passes through the detection section 31 and the stage Performing the steel strip image taking step 12, capturing an image of the inspection 31 of the production line 3 by an image manipulation device 4, Preferably, the shadow capture device 4 is mounted in the production line of the detection section 31 (directly above the line Z1). When the image capturing device 4 is erected, the image capturing range of the device 4 is taken according to the image (4): The height of the steel strip 2 to be rolled is adjusted and the misalignment line is used to adjust the image manipulation device 4 to be aligned with the center line Z1 of the production line, so that the image taken by the image capturing device* has symmetry. The image (4) device* has a one-side charge-consuming component. In addition, the steel strip to be rolled 2 uses its own light emitted by the south heat as a light source for the image capturing device* to take image, and its 201125654 1 speed Γ :: Γ 钢 steel strip 2 in the production line 3 travel speed of 4.25 meters per second, the image capture device 4 capture frequency is 4 per second. Suihua single m standard conversion step 13 'utilization - with - image digits : Image processing device 5 with a shirt image processing technology unit === standard conversion, the image digitizing unit=; after digitizing into a digital image, the image is processed by the image, and the digital image is divided into a bright area and a dark area. Image tape, silly outside η... Steel andamp; 2 μ 2 steel with shadow strip to be rolled (Iv) to the outer shape of the image coordinates - a line corresponding to the through seat 3 of the international space 1 spatial coordinates. See π to _ with the actual shape of the image with reference to Figure 3, 4, installed by ^ ^ ^ ^ ^ ^, = ^ = έ ^ ίΚνΜ ^ ^: for ',,,, perpendicular to the "flat direction x, less axis That is to say, the production side of the steel strip 2 to be rolled is 6 ° less than the level of the image of the image device. The precision of the power is the value of the value of the straight line - the measurement is made. ^ The image coordinates and the actual space coordinates will become more and more When the head end of the steel strip 2 to be rolled is to be cashed out, it is =: ΓΓ _ stored in the image processing device 2 - the 2 2 complete steel strip image: the solid poor inter-work coordinates In addition, because the image of a 201125654 = the actual spatial coverage covered, the calculation is in the calculation of 2 (4) edge image seat (4) to calculate the coordinates of the coordinates in sub-pixels. The conversion step 丨3 ^ 13 is paid to the two-coordinate two coordinates of the Weiyan steel strip, and the correction genus is used to calculate the step 14 by the image processing device. The cross-sectional space coordinates of the 16-image shape are obtained - two = Calculate the distance between the center line 22 of the strip and the center line of the production line, and obtain the steel strip 2 to be rolled. 3 school the very center of the offset data. x and 'Using the center of the steel strip 7? 7, ^ M green 22's head and tail connected into a imaginary connection, when the imaginary connection Z3 and the steel strip, ^ ^ ^ ^ exceed the pre-standard value The to-be-expanded steel strip 2 has a curved shape defect, ....., the steel strip to be rolled on the crucible shaft 2 center 仞 5? e dry ίί (4) 9 ^ 2 medium ~ position coordinates, the position of the waiting position is relatively The coordinate of the farthest point of the imaginary connection Ζ3 is that the distance to the imaginary connection Ζ3 is the bending amount C of the other correction data to be rolled (4), and the bending amount C: \xc-mxyc. b\ V7 + m&quot Step 15 'According to the slope of the calibration 772 疋 亥 imaginary connection Z3, & is the intercept reference to Figure 2, and finally the steel strip recovery material calculation step 14 to obtain (four) volume, immediately adjusted in the production line 3 The dry extension tool 7 of the dry extension 32 acts on the angle of the milk of the steel strip 2 to be rolled to adjust the level difference between the two sides of the roll 71 of the rolling implement 7 to correct the strip to be rolled 2f (4) The arc condition, and the correction data 201125654, the center offset obtained in step 14 is used to guide the offset of the steel strip 2 to be rolled by the rolling implement 7, so that the The bending of the rolled steel strip 2 is recovered and travels substantially straight along the production line 3. The method for measuring the bending of the steel strip in the rolling of the present invention and the method for producing the steel strip pass through the production line 3 sequentially after the steel strip 2 to be rolled is produced. The detecting section 31 and the rolling section 32 are subjected to the steel strip taking step 12 by the image capturing device 4 when the detecting section 3 is passed to obtain the image of the strip 2 to be rolled on the detecting section 31. Then, through the coordinate conversion step 13 and the correction data calculation step 14, the captured steel strip image is processed by the image processing device 5 to obtain the actual corrected data corresponding to the production line 3 of the steel strip to be rolled 2 for immediate correction. The data calibrates the rolling force' to produce a steel strip that does not bend and travels substantially straight along the line 3. Referring to Figures 1 and 5, the second preferred embodiment of the present invention is similar to the first preferred embodiment in that the steel strip bending measurement and the steel strip production method of the present invention are different in that the steel strip taking step is performed. 12. Coordinate conversion step 13 'Before the correction of the bedding calculation step 14' must be implemented first - the coordinate correspondence function acquisition step 16 ° The coordinate correspondence function acquisition step 16 needs to first set up a detection between the image capturing device 4 and the production line 3 a correction device 6 between the segments 31, the correction device 6 comprising a correction frame 6 disposed in the production line center line Z1 and having a plurality of first holes 611 having a plurality of fixed intervals, and a vertical correction frame 61 and having The calibration hole 62' of the second hole 621 of the plurality of fixed pitches is provided for the correction ruler 61, and then the image lion device 4 is on the detection section 31 (4) the correction device 6 201125654 For example, the image capturing device 41 of the image capturing device 4 needs to include the image capturing device 4 to calculate the corresponding relationship between the image coordinates of the second holes 621 and the actual space coordinates. The calibration ruler 62 is vertically moved along the production direction, and the correspondence between the image coordinates of the plurality of second holes 621 of the calibration rule 62 in the new position and the actual space coordinates is repeated, and the image capturing device 4 is covered. After the image range 41, a complete correspondence function for coordinate conversion by the image processing apparatus 5 is obtained.

/其中’該影像座標㈣與實際空間座標㈣間的對應關 係的取得,是湘實際空間的〇平面其每_點㈣都在該 影像操取裝置4㈣像座標Μ上Μ有-點,在該X轴上 有w個;f示準位置,在該少軸上有”個標準位置即每一實 際空間座標表示騎…,該影像揭取裝置操取的影像的每 一影像座標表示為〜心;,其中罐, ^~PJ~^Jc=mxn Σ 叫.《, ij-0,k=j/ Where the correspondence between the image coordinates (4) and the actual space coordinates (4) is obtained by the plane of the actual space of Hunan, where each point (4) has a point on the image manipulation device 4 (4) image coordinates. There are w on the X-axis; f indicates a quasi-position, on which there is "a standard position, that is, each actual space coordinate represents a ride..., each image coordinate of the image taken by the image removal device is represented as a heart; , which can, ^~PJ~^Jc=mxn Σ 叫.", ij-0,k=j

Xk~Xk(Uk, Vk)= i-pj'^-qJc-mxn y^~yk(uk)vk)= Y^ayijulkvJk ? i,j=0,k=lXk~Xk(Uk, Vk)= i-pj'^-qJc-mxn y^~yk(uk)vk)= Y^ayijulkvJk ? i,j=0,k=l

===:操取裝置,_一數後 ,本實施例中,該等第一孔洞6ιι間與該等第二孔洞 =的?…0_,此為考量使該影像掘取裝置所操取 的衫像具有對稱性,在計算該蓉 η 4第—孔洞621的影像座標與 貫際二間座標的對應關係時更 數取得步驟更加有效率地完成。迅速簡早,㈣座標對應函 提的是,該座標對應函數取得步驟16必須在該 ,、運作m先取得-次’㈣為該料處理裝置5進行 10 201125654 座標轉換的依據,之後可依現場監控人員的判斷,在進行座 標轉換時出現過大的誤差時,進行重新校正的動作,或定期 設備保養時定料以校正,重新取得座標轉換的對應函數, 然而,上述的對應函數取得時機並非本發明所欲強調之所 在’在此不再詳加論述。 綜上所述,本發明軋延中鋼帶彎曲測量及鋼帶生產方 法,利用該待軋延鋼帶2因高熱發出的光作為光源不需額 外架設光源供該影像擷取裝置4取像,且該影像擷取裝置4 只需具有一可擷取影像之單元(在本例中為面型電荷耦合元 件),可大幅節省架設空間,且該影像擷取裝置4只需定位 在該檢測段31的生產線中心線Z1並配合該校正裝置6取 得對應函數後即可使用’與現有的邊緣感測器或寬度計相 比,不需在該檢測段31同時架設多台配合使用,免除因需 同時架設多台感測器所產生的架設空間需求太大與中心線 對正問題,之後將該影像處理裝置運算得到的校正資料提供 給該軋延機具7’供該軋延機具7調整作用在該待乳延鋼帶 2的軋延力道,使该待軋延鋼帶2在軋延後回復彎曲且實質 平直地沿該生產線3行進,故確實能達成本發明之目的。 惟以上所述者,僅為本發明之較佳實施例而已,當不能 以此限定本發明實施之範圍,即大凡依本發明巾請專利範圍 b 及發明說明内容所作之簡單的等效變化與修飾,皆仍屬本發 明專利涵蓋之範圍内。 【圖式簡單說明】 圖1是一流程圖,說明本發明軋延中鋼帶彎曲測量及鋼 201125654 帶生產方法的較佳實施例; 圖2是一示意圖,說明一待軋延鋼帶的生產過程; 圖3是一示意圖,說明一校正裝置的裝設位置; 圖4是一示意圖,說明該待軋延鋼帶的中心偏移量計算 方法;及 圖5是一示意圖,說明該待軋延鋼帶的彎曲量計算方 法0===: After the device is operated, after the first number, in the embodiment, the first holes 6ιι and the second holes=?0_, which is taken into consideration by the image capturing device The jersey image has symmetry, and the number of acquisition steps is more efficiently completed when calculating the correspondence between the image coordinates of the θ 4 first hole 621 and the two inter-coordinates. Quickly and early, (4) Coordinate correspondence letter mentions that the coordinate correspondence function acquisition step 16 must be in, and the operation m first obtains - times '(four) is the basis for the material processing device 5 to perform 10 201125654 coordinate conversion, and then according to the scene The monitoring personnel judges that when there is an excessive error in the coordinate conversion, the recalibration operation is performed, or the calibration is performed during the periodic maintenance of the equipment, and the corresponding function of the coordinate conversion is regained. However, the timing of the corresponding function acquisition is not the present. What the invention wants to emphasize is not discussed in detail here. In summary, the method for measuring the bending of the steel strip in the rolling and the method for producing the steel strip of the present invention utilizes the light emitted by the high-heating strip 2 as a light source without using an additional light source for the image capturing device 4 to take an image. Moreover, the image capturing device 4 only needs to have a unit capable of capturing images (in this example, a surface charge coupling element), which can greatly save the installation space, and the image capturing device 4 only needs to be positioned in the detection segment. The production line center line Z1 of 31 can be used in conjunction with the calibration device 6 to obtain a corresponding function. Compared with the existing edge sensor or width meter, it is not necessary to set up multiple units at the same time in the detection section 31, thereby eliminating the need for At the same time, the erection space generated by the plurality of sensors is too large and the center line alignment problem is solved, and then the correction data calculated by the image processing device is supplied to the rolling machine 7' for the rolling machine 7 to adjust The rolling force of the steel strip 2 to be rolled allows the steel strip 2 to be rolled to return to bend after rolling and travels substantially straight along the line 3, so that the object of the present invention can be achieved. However, the above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the simple equivalent change of the patent scope b and the description of the invention according to the invention is Modifications are still within the scope of the invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a flow chart illustrating a preferred embodiment of a steel strip bending measurement and a steel 201125654 belt production method in the rolling of the present invention; FIG. 2 is a schematic view showing the production of a steel strip to be rolled Figure 3 is a schematic view showing the mounting position of a calibration device; Figure 4 is a schematic view showing a method for calculating the center offset of the steel strip to be rolled; and Figure 5 is a schematic view showing the to-be-rolled Calculation method of bending amount of steel strip

12 201125654 【主要元件符號說明】 11…… …鋼帶產出步驟 51 .… •…影像數位化單元 12…… …鋼帶取像步驟 52•…. •…影像處理技術單 13…… …座標轉換步驟 元 14…… …校正資料計算步 6…… •…校正裝置 驟 61 ·." •…校正架 15…… …鋼帶回復步驟 611… •…第一孔洞 16…… …座標對應函數取 62•.… •…校正尺 得步驟 621… …第二孔洞 2 ....... …待軋延鋼帶 7…… •…軋延機具 3 ....... …生產線 71 •‘… …·軋輥 31…… …檢測段 X···---- •…水平方向 32…… …軋延段 y....... …生產方向 4 ....... …影像擷取裝置 Z1 …·生產線中心線 41…… …取像範圍 Z2 · · …·鋼帶中心線 5 ....... …影像處理裝置 Z3 •…假想連線 1312 201125654 [Description of main component symbols] 11...... ...Steel tape production step 51 .... • Image image digitizing unit 12... ...Steel strip image taking step 52•.... • Image processing technology sheet 13... ... coordinates Conversion step element 14 ... ... correction data calculation step 6 ... • ... correction device step 61 · · " • correction frame 15 ... ... steel belt recovery step 611 ... • ... first hole 16 ... ... coordinates corresponding function Take 62•.... •...correction ruler step 621......second hole 2............to be rolled steel strip 7...•...rolling machine 3............Production line 71 • '... Roller 31... ...detection section X···---- • horizontal direction 32... ...rolling section y....... ...production direction 4 ....... ...image capture device Z1 ...·production line center line 41...take image range Z2 ····steel strip center line 5............image processing device Z3 •...imaginary connection 13

Claims (1)

201125654 七、申請專利範圍: 1_ 一種軋延中鋼帶彎曲測量及鋼帶生產方法,包含: 一鋼帶產出步驟’令一待軋延鋼帶沿一生產線行進, 依序通過該生產線的一檢測段,與一以軋延機具作=該鋼 帶通過之部分的軋延段; Μ 一鋼帶取像步驟,用一對應設置於該生產線上方的影 像摘取装置擷取該檢測段的影像; 心 一座標轉換步驟,以一影像處理裝置根據該鋼帶取 步驟操取的影像得到-鋼帶影像外形,並將該鋼帶影 形的影像座標轉換為-對應該生產線的實際空間座標; -校正資料計算步驟,計算該實際空間座標與該 線的一生產線中心線的差值,得到一校正資料;及χ -鋼帶回復步驟,依據該校正資料調整該乳延 用於該待軋延鋼帶的乾延力量,使該待乾延鋼帶曲 實質平直地沿該生產線行進。 2· 2據中請專利範圍第丨項所述的軋延中鋼帶㈣測量 產方法,其中,該鋼帶取像步驟利用該待軋延鋼帶因 间.、.、發出的光為發光源,供該影像擷取裴置擷取影 請專利範圍第丨項所述㈣延中鋼帶以測量及 I生產方法’其中’該座標轉換步驟是以該影像處置 將該鋼帶取像步賴取的影像以預定閥值區分得到該鋼 1 影像外形’再對該鋼帶影像外形進行次像 、帶 帶影像外形的影像座標轉換為該實際空間座標。而將5亥鋼 4.根射請專利範圍第3項所述料延中鋼帶=測量及鋼 14 201125654 帶生產方法,其中,爭德产你 暮 m 〜像座糕轉換為該實際空間座標是定 義尤=_/^,以=y1 .W, m m-i j-〇 少=容㈣=Σ Σ〜w,v>轉換,其中,λ:軸 是垂直於該待軋延鋼帶行進的以方向,少軸是該待軋延 鋼帶订進方向,Μ是該影像擁取裝置水平方向與垂直方 向座標點,;W是量測精度幂次。 I =射請專利範圍第3項所述的乳延中鋼帶f曲測量及鋼 帶生產方法,其中,該校正資料計算步驟利用該待軋延鋼 帶的實際空間座標得到一鋼帶中心線,計算該鋼帶中心線 與生產線中心線的距離得到該待軋延鋼帶的中心偏移量。 6 ·根據申請專利範圍第$ 册 圓弟5項所述的軋延中鋼帶彎曲測量及鋼 π生產方法,其中’該校正資料計算步驟還以該鋼帶中心 線的頭尾連接成一假想連線,定義該假想連線與該鋼帶中 心,的最大距離超過預設標準值時為該待軋延鋼帶有彎曲 卜31缺陷’心、巧··..·心是垂直於該待軋延鋼帶行進的水平 方向X軸的待軋延鋼帶中心位置座標,待乾延鋼帶中心位 :相對該假想連線最遠點的座標是“‘,。…至該假想 c t 的:二是該待軋延鋼帶的彎曲量C,且該弯曲量 —^=7—,所是假想連線的斜率,6是截距。 根據中請專利範圍帛5項所述的軋延中鋼帶f曲測量及鋼 帶生產方法1包含一座標對應函數取得步驟該影像擷 取裝置掏取一校正裝置在該生產線上方的影像,計算該校 正裝置具有的多數孔洞的影像座標與實際空間座標間的對 應關係’得到—供該影像處理裝置進行座標轉換的對應函 15 201125654 8. 根據申請專利 帶生產方法,:中第7項所述的軋延中鋼帶彎曲測量及鋼 子古於兮π 、中’該座標對應函數取得牛跡〜 鋼 垂直料帶行财㈣=步驟定1袖為 個標準位置,〜該待軋延鋼 向,該,… 個標準位置,即每_實際空間座標表示=向,該少軸上有” 取裝置擁取的影像的有_ — s 少d ’該影像操 % ~影像座標表 k-1,2, ,..,mxn 5 為’其中 xk^Xk(uk,vk) = i=Pj^Je^mxn ^nxn 16201125654 VII. Patent application scope: 1_ A method for bending and measuring steel strips in rolling and steel strips, comprising: a steel strip production step of 'making a steel strip to be rolled along a production line, sequentially passing one of the production lines a detecting section, and a rolling section of the rolling mill for the portion through which the steel strip passes; Μ a steel strip taking step, and capturing an image of the detecting section by an image picking device corresponding to the upper side of the production line a heart-to-standard conversion step of obtaining an image of the steel strip image by an image processing device according to the image taken by the strip taking step, and converting the image coordinate of the steel strip into an actual space coordinate corresponding to the production line; a correction data calculation step of calculating a difference between the actual space coordinate and a line center line of the line to obtain a correction data; and a χ-steel belt recovery step, adjusting the milk extension for the to-be-rolled according to the correction data The dry extension of the steel strip causes the steel strip to be dried to travel substantially straight along the production line. 2. The method for measuring the rolled steel strip (4) according to the scope of the patent scope, wherein the strip taking step utilizes the light emitted by the strip to be rolled Source, for the image capture device, take the shadow of the patent scope, item (4) Yanzhong steel belt to measure and I production method 'where' the coordinate conversion step is to take the steel strip to take image steps The image obtained by the image is differentiated by a predetermined threshold to obtain the image shape of the steel 1 and then the image image of the image of the steel strip is converted into the image coordinate of the image with the image shape. And 5 Haigang 4. Root shot please refer to the third paragraph of the patent scope of the material to extend the steel strip = measurement and steel 14 201125654 belt production method, in which the competition for the production of your 暮m ~ like the cake converted to the actual space coordinates Is defined as y = _ / ^, = y1 .W, m mi j - 〇 less = capacity (four) = Σ Σ ~ w, v > conversion, where λ: the axis is perpendicular to the steel strip to be rolled Direction, the small axis is the direction in which the steel strip to be rolled is set, and Μ is the coordinate point of the image capturing device in the horizontal direction and the vertical direction; W is the measurement precision power. I = the method for measuring the curvature of the steel strip and the method for producing the steel strip according to item 3 of the patent scope, wherein the calculation step of the correction data obtains a center line of the steel strip by using the actual space coordinates of the strip to be rolled Calculating the distance between the center line of the steel strip and the center line of the production line to obtain the center offset of the steel strip to be rolled. 6 · According to the patent application scope of the fifth volume of the book, the rolling steel strip bending measurement and steel π production method, wherein the calculation step of the correction data is also connected to the imaginary company by the head and tail of the center line of the steel strip Line, which defines that the maximum distance between the imaginary connection and the center of the steel strip exceeds a preset standard value, and the steel to be rolled has a bend and a defect of 31, and the heart is perpendicular to the to-be-rolled The coordinate of the center position of the steel strip to be rolled in the horizontal direction of the X-axis of the extension steel strip, the center of the steel strip to be dried and extended: the coordinate of the farthest point relative to the imaginary connection is "', .... to the imaginary ct: two Is the bending amount C of the steel strip to be rolled, and the bending amount is -^=7-, which is the slope of the imaginary connection, and 6 is the intercept. According to the patent scope 帛5, the rolling steel The f-curve measurement and the steel strip production method 1 includes a standard correspondence function obtaining step. The image capturing device captures an image of the correction device above the production line, and calculates an image coordinate between the image coordinates and the actual space coordinates of the plurality of holes of the correction device. Correspondence 'get' for the image processing Correspondence letter for coordinate conversion 15 201125654 8. According to the patented production method, the bending measurement of the steel strip in the rolling and the calculation of the steel in the 兮π, ~ Steel vertical material line (four) = step 1 sleeve as a standard position, ~ the steel to be rolled, the ..., the standard position, that is, the actual space coordinates = = direction, the less axis has "take" The image captured by the device has _ s less d 'the image operation % ~ image coordinate table k-1, 2, , .., mxn 5 is 'where xk^Xk(uk, vk) = i=Pj^Je ^mxn ^nxn 16
TW99101197A 2010-01-18 2010-01-18 Steel strip bending measurement in rolling process and steel strip fabrication method TW201125654A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI619560B (en) * 2017-06-01 2018-04-01 中國鋼鐵股份有限公司 Steel plate measuring system and method thereof
TWI657873B (en) * 2018-09-06 2019-05-01 中國鋼鐵股份有限公司 Method for detecting bending of traveling steel strip
TWI661287B (en) * 2017-11-22 2019-06-01 日商東芝三菱電機產業系統股份有限公司 Data reproducing apparatus for industrial plant

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI619560B (en) * 2017-06-01 2018-04-01 中國鋼鐵股份有限公司 Steel plate measuring system and method thereof
TWI661287B (en) * 2017-11-22 2019-06-01 日商東芝三菱電機產業系統股份有限公司 Data reproducing apparatus for industrial plant
US11423525B2 (en) 2017-11-22 2022-08-23 Toshiba Mitsubishi-Electric Industrial Systems Corporation Industrial plant data reproduction device
TWI657873B (en) * 2018-09-06 2019-05-01 中國鋼鐵股份有限公司 Method for detecting bending of traveling steel strip

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