JPH0722777B2 - Strip joint detection method - Google Patents
Strip joint detection methodInfo
- Publication number
- JPH0722777B2 JPH0722777B2 JP2199067A JP19906790A JPH0722777B2 JP H0722777 B2 JPH0722777 B2 JP H0722777B2 JP 2199067 A JP2199067 A JP 2199067A JP 19906790 A JP19906790 A JP 19906790A JP H0722777 B2 JPH0722777 B2 JP H0722777B2
- Authority
- JP
- Japan
- Prior art keywords
- strip
- detecting
- finish rolling
- trailing
- joined
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000001514 detection method Methods 0.000 title description 6
- 238000005096 rolling process Methods 0.000 claims description 16
- 238000005304 joining Methods 0.000 claims description 11
- 238000005520 cutting process Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 description 4
- 238000005098 hot rolling Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 1
Landscapes
- Metal Rolling (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、エンドレス熱間圧延におけるストリップの接
合部検出方法に関する。Description: TECHNICAL FIELD The present invention relates to a strip joint detection method in endless hot rolling.
〔従来の技術〕 エンドレス熱間圧延における、ストリップの接合部検出
方法としては、特開昭59−24508号公報或は特開昭61−2
22623号公報等が開示されている。前者は、接合部ある
いはその近傍の側端部にクリッピングを行っておき、切
断機の前でこれを検出し、切断タイミングを決定する方
法及び装置であるが、接合後クリッピング作業が必要な
ため装置が複雑になること、また、接合作業のサイクル
タイムが長くなるといった欠点がある。[Prior Art] As a method for detecting a joint portion of a strip in endless hot rolling, there is disclosed in JP-A-59-24508 or JP-A-61-2.
No. 22623 is disclosed. The former is a method and a device that performs clipping at the side of the joint or in the vicinity thereof, and detects this in front of the cutting machine to determine the cutting timing. However, there are drawbacks in that it is complicated and that the cycle time of the joining work is long.
また、後者は、圧延スタンドの入側板厚、出側板厚、お
よび圧延荷重の各変化分を求め、これらによりストリッ
プの塑性定数を求め、塑性定数の急変化部として接合部
を検出し切断タイミングを決定する方法であるが、特に
エンドレス熱間圧延の場合には、塑性定数変化を明瞭に
捉えることが難しく検出精度が十分に得られないという
欠点がある。In the latter case, the inlet side plate thickness of the rolling stand, the outlet side plate thickness, and the respective changes of the rolling load are calculated, the plastic constant of the strip is calculated from these, and the cutting timing is detected by detecting the joint part as a sudden change in the plastic constant. This is a method of determining, but particularly in the case of endless hot rolling, there is a drawback that it is difficult to clearly grasp the change in plastic constant and detection accuracy cannot be sufficiently obtained.
本発明は上記従来技術の問題点を解決し、接合部の検出
を確実に実施すると共に、特別な装置を用いることなく
既設設備を使用して簡単に実施できるストリップの接合
部検出方法を提供することを課題とするものである。The present invention solves the above-mentioned problems of the prior art, and provides a method for detecting a joint portion of a strip, which can surely detect a joint portion and can be easily performed by using existing equipment without using a special device. This is an issue.
本発明は上述の問題点を解決するものであり、シートバ
ーを仕上圧延機入口より上流で接合し、接合されたシー
トバーを仕上圧延機内でエンドレス熱間圧延し、圧延さ
れたストリップを巻取機入口の上流で切断する際の、該
ストリップの接合部検出する方法に適用され、次の方法
を採った。すなわち、 先行ストリップ後端と後行ストリップ先端を幅差を設け
て接合しておき、仕上圧延後のストリップ切断の前に幅
差部分を検出することにより接合部を検出することを特
徴とするストリップの接合部検出方法である。The present invention is to solve the above-mentioned problems, a sheet bar is joined upstream from an entrance of a finish rolling mill, the joined sheet bar is endless hot rolled in a finish rolling mill, and a rolled strip is wound up. It was applied to the method for detecting the joint portion of the strip when cutting upstream of the machine inlet, and the following method was adopted. That is, the strip is characterized in that the trailing end of the preceding strip and the leading end of the following strip are joined with a width difference, and the joining portion is detected by detecting the width difference portion before cutting the strip after finish rolling. This is a method of detecting a joint part.
本発明によれば既設設備を使用して簡単に先行ストリッ
プ後端と、後行ストリップ先端の接合部にストリップの
幅差部分を設けることが可能となり、作業能率が向上す
ると共に、検出誤差なく接合部を検出することができ
る。According to the present invention, it is possible to easily provide a strip width difference portion at the joining portion between the trailing end of the preceding strip and the leading end of the following strip by using the existing equipment, which improves the working efficiency and joins without a detection error. The part can be detected.
第１図は本発明を好適に実施できる設備の説明図であ
る。２は粗最終スタンド圧延機１に付属する高速油圧圧
下機構を備えたエッジャー、３はシートバー接合装置、
４は仕上圧延機、５は板幅検出器、６はストリップ切断
機、７は巻取機を示す。FIG. 1 is an explanatory view of equipment capable of suitably implementing the present invention. 2 is an edger equipped with a high-speed hydraulic reduction mechanism attached to the rough final stand rolling mill 1. 3 is a sheet bar joining device,
4 is a finish rolling mill, 5 is a strip width detector, 6 is a strip cutting machine, and 7 is a winding machine.
次に、同一幅のシートバーを接合してエンドレス圧延を
実施する場合について説明する。Next, a case where endless rolling is performed by joining sheet bars having the same width will be described.
第２図に示すように、先行ストリップの後端８では
エッジャロール９のギャップは一定に保ちエッジを平行
に仕上げる。At the trailing end 8 of the leading strip, the gap of the edger roll 9 is kept constant, finishing the edges parallel, as shown in FIG.
後行ストリップの先端10は、第３図に示すように、
エッジャロール９のギャップを通常設定よりも10mm以上
狭くし圧延開始後所定の仕上げ幅に広げる圧延を行う。The leading end 10 of the trailing strip is, as shown in FIG.
The gap of the edger roll 9 is narrowed by 10 mm or more as compared with the normal setting, and after the start of rolling, rolling is performed to widen the predetermined finishing width.
次いで、第４図に示すように、上記先行ストリップ
と後行ストリップを接合した後、仕上圧延を行い、板幅
検出器５によって幅差部分11を検出して切断タイミング
を決め切断機６でストリップの切断を行う。Next, as shown in FIG. 4, after joining the preceding strip and the following strip, finish rolling is performed, the width difference portion 11 is detected by the strip width detector 5, the cutting timing is determined, and the strip is cut by the cutting machine 6. Disconnect.
以上の方法は一例を示したものであり、先行材、後行材
のどちらか一方、或いは両方の幅を変化させてもよい。
さらに幅の変更は広げるか狭めるか各種組合せることが
できる。The above method is an example, and the width of either the leading material or the trailing material or both of them may be changed.
Further, the width change can be widened or narrowed and various combinations can be made.
なお、本発明では接合部において先行ストリップの後端
と、後行ストリップの幅差を10mm以上としているが、検
出誤差を少なくするにはこの程度の幅差が必要である。In the present invention, the width difference between the trailing end of the preceding strip and the trailing strip is 10 mm or more at the joining portion, but this width difference is necessary to reduce the detection error.
本発明は次のような優れた効果を奏する。 The present invention has the following excellent effects.
特別な装置を追加することなく既設設備で加工が可
能であり、このための余分な時間は不要であり作業能率
が向上する。Machining can be done with existing equipment without adding special equipment, and no extra time is required for this, improving work efficiency.
検出誤差なく接合部を検出することができる。 The joint can be detected without a detection error.
第１図は本発明を好適に実施できる設備の説明図、第２
図〜第４図は本発明によるストリップの接合例の説明図
であり、第２図は先行ストリップの後端部の成形、第３
図は後行ストリップの先端部の成形、第４図はストリッ
プの接合をそれぞれ示している。 １…粗最終スタンド圧延機 ２…エッジャー、３…シートバー接合装置 ４…仕上圧延機、５…板幅検出器 ６…ストリップ切断機 ７…巻取機、８…先行材後端 ９…エッジャロール、10…後行材先端 11…幅差部分FIG. 1 is an explanatory view of equipment for suitably implementing the present invention, and FIG.
FIG. 4 to FIG. 4 are explanatory views of an example of joining strips according to the present invention, and FIG. 2 is a molding of the rear end portion of the preceding strip, and FIG.
The drawing shows molding of the leading end of the trailing strip, and FIG. 4 shows joining of the strips. DESCRIPTION OF SYMBOLS 1 ... Coarse final stand rolling mill 2 ... Edger, 3 ... Sheet bar joining device 4 ... Finishing rolling mill, 5 ... Strip width detector 6 ... Strip cutting machine 7 ... Winding machine, 8 ... Leading material rear end 9 ... Edger roll, 10 ... Tip of trailing material 11 ... Difference in width
───────────────────────────────────────────────────── フロントページの続き (72)発明者 青木 富士男 千葉県千葉市川崎町１番地 川崎製鉄株式 会社千葉製鉄所内 (56)参考文献 特開 平３−47625（ＪＰ，Ａ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Fujio Aoki 1 Kawasaki-cho, Chiba-shi, Chiba Kawasaki Steel Co., Ltd. Chiba Works (56) Reference JP-A-3-47625 (JP, A)
Claims (1)
合し、接合されたシートバーを仕上圧延機内でエンドレ
ス熱間圧延し、圧延されたストリップを巻取機入口の上
流で切断する際の、該ストリップの接合部検出方法にお
いて、 先行ストリップ後端と後行ストリップ先端を幅差を設け
て接合しておき、仕上圧延後のストリップ切断の前に該
幅差部分を検出することにより接合部を検出することを
特徴とするストリップの接合部検出方法。1. When a sheet bar is joined upstream from an inlet of a finish rolling mill, the joined sheet bar is endless hot-rolled in a finish rolling mill, and a rolled strip is cut upstream of an inlet of a winder. In the method for detecting the joint portion of the strip, the trailing end of the preceding strip and the leading end of the trailing strip are joined with a width difference, and the joining portion is detected by detecting the width difference portion before cutting the strip after finish rolling. A method for detecting a joint portion of a strip, which comprises:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2199067A JPH0722777B2 (en) | 1990-07-30 | 1990-07-30 | Strip joint detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2199067A JPH0722777B2 (en) | 1990-07-30 | 1990-07-30 | Strip joint detection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0489136A JPH0489136A (en) | 1992-03-23 |
| JPH0722777B2 true JPH0722777B2 (en) | 1995-03-15 |
Family
ID=16401561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2199067A Expired - Fee Related JPH0722777B2 (en) | 1990-07-30 | 1990-07-30 | Strip joint detection method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0722777B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100928803B1 (en) * | 2007-11-29 | 2009-11-25 | 주식회사 포스코 | Apparatus and method for detecting joints of steel sheets in continuous hot rolling |
-
1990
- 1990-07-30 JP JP2199067A patent/JPH0722777B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0489136A (en) | 1992-03-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |