JPH03166006A - Method and device of side trimming for metal strip in continuous process line - Google Patents
Method and device of side trimming for metal strip in continuous process lineInfo
- Publication number
- JPH03166006A JPH03166006A JP30725489A JP30725489A JPH03166006A JP H03166006 A JPH03166006 A JP H03166006A JP 30725489 A JP30725489 A JP 30725489A JP 30725489 A JP30725489 A JP 30725489A JP H03166006 A JPH03166006 A JP H03166006A
- Authority
- JP
- Japan
- Prior art keywords
- metal strip
- width
- continuous process
- trimmer
- strip
- 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.)
- Pending
Links
- 239000002184 metal Substances 0.000 title claims abstract description 48
- 238000010924 continuous production Methods 0.000 title claims abstract description 25
- 238000009966 trimming Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims description 24
- 238000013459 approach Methods 0.000 claims abstract description 4
- 230000002159 abnormal effect Effects 0.000 claims description 17
- 238000005520 cutting process Methods 0.000 claims description 15
- 238000011144 upstream manufacturing Methods 0.000 claims description 7
- 210000005069 ears Anatomy 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 abstract description 7
- 239000010959 steel Substances 0.000 abstract description 7
- 230000001788 irregular Effects 0.000 abstract 5
- 230000005856 abnormality Effects 0.000 description 8
- 238000000137 annealing Methods 0.000 description 5
- 238000005554 pickling Methods 0.000 description 4
- 238000007747 plating Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005098 hot rolling Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Shearing Machines (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は連続プロセスラインにおける金属ストリップの
サイドトリミング方法および装直に係り、特に金属スト
リップの板輻が異常の場合でも，完全自動運転で耳切り
作業を円滑正常に可能とする金属ストリップのプロセス
ラインにおけるサイドトリミング方法およびその装置に
関し、金属ストリップの焼鈍、酸洗、めっき等のプロセ
ス操業に利用される。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method for side trimming and refitting of a metal strip in a continuous process line, and in particular to a method for side trimming and refitting of a metal strip in a continuous process line. The present invention relates to a side trimming method and apparatus for a metal strip process line that enables smooth and normal cutting operations, and is used in process operations such as annealing, pickling, and plating of metal strips.
一般に金属ストリップの焼鈍，酸洗，めっきライン等の
プロセスラインにおいて，粗材スラブ等の熱間圧延によ
って両側端部に生じた『耳」と称されている余剰部を切
断するサイドトリミング時の耳切代には最適範囲が存在
し、その範囲を外れるとライン操業に支障を来たす場合
が多い。すなわち，耳切代が多すぎると、耳屑の処理装
置が過負荷となり正常に作動しなくなるばかりでなく、
歩留を悪化させることになる．
また、耳切代が少な過ぎると、十分なサイドトリミング
が不可能となり、トリマー刃が逃げて耳付きコイルを発
生させたり，耳部に疵が発生するおそれがあるほか、所
定の製品幅を確保することができなくなる場合もある．
通常連続プロセスラインに提供されるコイルは、同一人
側コイルでは同一板幅であることを原則とするが、熱間
圧延時のいわゆるネッキング等により、第３図に示す如
く、部分的に板幅が増減している場合がある。この場合
、鋼板１の入側板幅ｄ０とし耳部２のサイドトリマーに
よる切断後の板幅ｄ２とすると、板幅異常部３の板幅ｄ
，は，辛じて耳切り後の板＋１１ｉｄ，を確保できるか
、もしくは目標とする耳切り後の板＠ｄ２にも及ばない
場合がある６
かかる異常の発生を防止するために、従来は常時板の耳
切り状況を監視して，異常を発見した場合には、ライン
スピードを落したり、サイドトリマーを解放するなどの
作業を実施していた。Generally, in process lines such as annealing, pickling, and plating lines for metal strips, edge cutting is performed during side trimming, which involves cutting off excess parts called ``ears'' that are generated at both side edges due to hot rolling of rough material slabs, etc. There is an optimum range for this range, and deviations from this range often cause problems in line operation. In other words, if there is too much selvage, not only will the selvage disposal device become overloaded and not work properly;
This will worsen the yield. In addition, if the selvage cutting allowance is too small, sufficient side trimming will not be possible, which may cause the trimmer blade to escape and cause selvage coils, or scratches on the selvedges, as well as ensuring the specified product width. Sometimes it becomes impossible to do so. Normally, coils provided to continuous process lines should have the same sheet width for coils on the same person's side, but due to so-called necking during hot rolling, the sheet width may partially change as shown in Figure 3. may be increasing or decreasing. In this case, if the entry side width d0 of the steel plate 1 is the width d2 of the edge portion 2 after cutting by the side trimmer, then the width d of the abnormal width portion 3 is
, may barely be able to secure the board after cutting the edge +11id, or may not reach the target board @d2 after cutting the edge.6 In order to prevent the occurrence of such an abnormality, conventionally, The condition of the edges of the board was monitored, and if an abnormality was found, actions such as slowing down the line speed or releasing the side trimmer were carried out.
しかし、上記の如きラインの操業方法では次のような幾
多の問題点がある。However, the line operating method as described above has a number of problems as follows.
（イ） 常時、耳切り状況を監視するためには、作業員
を配置する必要があり、しかも少しでも監視を怠ると操
業トラブルを起すおそれがある。(b) In order to constantly monitor the ear cutting situation, it is necessary to have workers on hand, and even a slight failure to monitor may cause operational problems.
（口〉 走行する高速プロセスラインでは耳切り異常を
発見した後、所定のラインスピードへ落すのではトラブ
ルを回避するのに間に合わないことが多い．
（ハ） サイドトリマーを急に解放すると、第４図に示
す如く製品鋼板１のサイドトリマー解放部分４に耳屑５
が付着したまま走行することとなり甚だ危険であると共
に不良品となる。(Example) On a high-speed process line running, reducing the line speed to the specified line speed after discovering an edge trimming abnormality is often not enough to avoid the problem. (c) If the side trimmer is suddenly released, the 4th As shown in the figure, ear scraps 5 are attached to the side trimmer release portion 4 of the product steel plate 1.
It is extremely dangerous to drive the vehicle with the residue on it, and it becomes a defective product.
（二）第５図に示す如く、サイドトリマーが、次のコイ
ルとの溶接部６を経て幅狭部７から幅広部８へ移行する
場合に、サイドトリマーがうまく鋼板ｌに噛み込まない
ことがある。(2) As shown in Fig. 5, when the side trimmer transitions from the narrow part 7 to the wide part 8 through the welding part 6 with the next coil, the side trimmer may not bite into the steel plate l properly. be.
（ホ） 耳切りが正常にできず，所定のＦｉ．幅を確保
することができなかった部分を、その後の工程で判別す
ることがきわめて困難となる。(E) The ear cannot be cut properly and the specified Fi. It becomes extremely difficult to determine in subsequent processes the portions for which the width could not be secured.
本発明の目的は，金属ストリップの連続プロセスライン
における耳部切断の上記従来技術の問題点を解消し，
（イ）板幅異常のあるコイルでも、完全自動運転で耳切
り作業が可能となり、異常発見の監視要員を必要としな
い。The purpose of the present invention is to solve the above-mentioned problems of the conventional technology for edge cutting in a continuous process line for metal strips, and (a) to enable edge cutting work in fully automatic operation even for coils with an abnormal strip width. No detection monitoring personnel required.
（口）耳屑が付着したままコイルが巻取られるおそれが
ない。(mouth) There is no risk of the coil being wound up with ear debris still attached.
（ハ） サイドトリマーの噛み込み不良による異常がな
くなる。(c) Abnormalities caused by poor engagement of the side trimmer are eliminated.
（二）耳切りが正常にできなかった部分があっても、正
確に検出できる。(2) Even if there is a part where the ear cannot be cut properly, it can be detected accurately.
上記目標を可能とする連続プロセスラインにおける金属
ストリップのサイドトリミング方法およびその効果的な
装置を提供するにある。The object of the present invention is to provide a method for side trimming a metal strip in a continuous process line and an effective apparatus for side trimming a metal strip in a continuous process line that enables the above goals.
上記本発′明の目的は、下記要旨の２発明によって達成
される。The above object of the present invention is achieved by the following two inventions.
先ず、本発明によるサイドトリミング方法の要旨とする
ところは次の如くである，
すなわち、金属ストリップの連続プロセス部の出側にサ
イドトリマーを設け該金属ストリップの耳部を切断する
工程を有して或る連続プロセスラインにおける金属スト
リップのサイドトリミング方法において、前記連続プロ
セスラインに連続板幅計を設け前記金属ストリップの板
幅を連続的に測定する段階と，前記連続板幅計により検
出された板幅異常部開始点に切欠きを入れる段階と、前
記板幅異常部開始点が前記サイドトリマーに接近した時
点でラインスピードを低減する段階と、前記サイドトリ
マーの設定幅を板幅異常部終了点まで拡大する段階と、
前記板幅異常部終了点に切欠きを入れる段階と、前記サ
イドトリマーの設定幅およびラインスピードを復原する
段階と、を有することを特徴とする連続プロセスライン
における金属ストリップのサイドトリミング方法である
．しかして、本発明によるサイドトリミング装置の要旨
とするところは次の如くである．金属ストリップの連続
プロセス部の出側に該ストリップの耳部を切断するサイ
ドトリマーを有して成る連続プロセスラインにおける金
属ストリップのサイドトリミング装置において、前記サ
イドトリマーの直前に設けられ前記金属ストリップの両
側端部に切欠きを入れるサイドノツチャ−と、前記サイ
ドノツチャ−の上流に設けられ前記金属ストリップの板
幅を連続的に測定する板幅計と，を有することを特徴と
する連続プロセスラインにおける金属ストリップのサイ
ドトリミング装置である．
先ず、本発明による連続プロセスラインにおける金属ス
トリップのサイドトリミング装置について説明する．ペ
イオフリール１０によって巻戻された金属ストリップ１
の先端部は、溶接機１１によって先行鋼帯の尾端部に溶
接され、入側ルーパー１２を経て、焼鈍炉，めっき装置
、酸洗槽等のプロセス部１３における処理を行った後、
出側ルーパー１４を経て、サイドトリマ−１５で耳切り
を行い、シャー１６で所定の長さに切断された後，最終
工程のテンションリール１７でコイル状に巻取られて製
品コイルとして出荷される．上記の如き従来のプロセス
ラインにおいて，本発明では、サイドトリマ−１５の直
前に金属ストリップ１の両側端部に切欠きを入れるサイ
ドノツチャ−２１を設け，更に，サイドノツチャ−２１
の上流に、金属ストリップ１の板幅を連続的に測定する
連続板幅計２０を設けたのが特徴である．板幅計２０は
，サイドノツチャ−２１の上流ならば特に限定する必要
がないが，少くとも出側ルーパー１４よりも上流側が望
ましく，第１図では溶接機１１の上流に設けられている
．
従来は，入側溶接機１１にサイドノツチャ−が設けられ
ているが、例えば、連続焼鈍ライン等においては、蛇行
防止装置との関連において発生するいわゆるヒートバッ
クルの問題のほか制御の容易性の観点から、出側ルーパ
ー１４の下流のサイドトリマ−１５の直前に設けた方が
よい。First, the gist of the side trimming method according to the present invention is as follows. That is, it includes the step of providing a side trimmer on the exit side of a continuous processing section for metal strips and cutting the edges of the metal strips. A method for side trimming a metal strip in a continuous process line includes the steps of: providing a continuous plate width meter in the continuous process line and continuously measuring the plate width of the metal strip; making a notch at the starting point of the abnormal width part; reducing the line speed when the starting point of the abnormal width part approaches the side trimmer; and changing the set width of the side trimmer to the end point of the abnormal width part. The stage of expanding to
A method for side trimming a metal strip in a continuous process line, comprising the steps of: making a notch at the end point of the abnormal strip width; and restoring the set width and line speed of the side trimmer. The gist of the side trimming device according to the present invention is as follows. A side trimming device for a metal strip in a continuous process line comprising a side trimmer for cutting an edge of the strip on the exit side of a continuous process section of the metal strip, wherein the side trimmer is provided immediately before the side trimmer and is provided on both sides of the metal strip. A method for manufacturing a metal strip in a continuous process line, characterized by having a side notch for making a notch at the end, and a width gauge provided upstream of the side notch to continuously measure the width of the metal strip. This is a side trimming device. First, a side trimming device for metal strips in a continuous process line according to the present invention will be explained. Metal strip 1 rewound by payoff reel 10
The tip of the steel strip is welded to the tail end of the preceding steel strip by a welder 11, passed through an inlet looper 12, and processed in a process section 13 such as an annealing furnace, plating equipment, and pickling tank.
After passing through the exit looper 14, the side trimmer 15 cuts the edges, and the shear 16 cuts the coil to a predetermined length.The final step is the tension reel 17, where the coil is wound into a coil and shipped as a product coil. ．． In the conventional process line as described above, in the present invention, side notches 21 are provided for notching both ends of the metal strip 1 immediately before the side trimmer 15, and the side notches 21 are further provided.
The feature is that a continuous plate width meter 20 is provided upstream of the metal strip 1 to continuously measure the plate width of the metal strip 1. The plate width gauge 20 does not need to be particularly limited as long as it is located upstream of the side notch 21, but it is preferably located at least upstream of the outlet looper 14, and in FIG. 1 it is provided upstream of the welding machine 11. Conventionally, a side notch is provided on the entry side welding machine 11, but for example, in a continuous annealing line, etc., it is necessary to avoid the problem of so-called heat buckling that occurs in connection with a meandering prevention device, as well as from the viewpoint of ease of control. , it is better to provide it immediately before the side trimmer 15 downstream of the exit side looper 14.
本発明による連続プロセスラインにおける金属ストリッ
プのサイドトリミング装置は上記の如く構或されている
ので，次の如き作用が可能となった。Since the side trimming device for metal strips in a continuous process line according to the present invention is constructed as described above, the following operations are possible.
本発明による作用を第２図を参照して説明する．プロセ
スラインを走行する金属ストリップ１に，第３図で示し
た如き板幅異常部３が連続板幅計２０で検出されると，
板幅計２０の信号をもとに常時プロセスコンピューター
等により異常の有無を判定するようになっているので、
異常の板幅異常部３が検出されると、その開始点２２か
ら終了点２３まで追跡し、板幅異常部３が、サイドノツ
チャ−２１およびサイドトリマー１５に近付いた時点で
ラインを減速し，異常の開始点２２にノツチをいれ，サ
イドトリマ−１５の設定幅を異常終了点２３まで広げる
。The operation of the present invention will be explained with reference to FIG. When a strip width abnormality 3 as shown in FIG. 3 is detected by the continuous strip width gauge 20 in the metal strip 1 running on the process line,
Based on the signal from the board width gauge 20, the presence or absence of an abnormality is constantly determined by a process computer, etc.
When the abnormal board width part 3 is detected, it is tracked from the starting point 22 to the ending point 23, and when the abnormal board width part 3 approaches the side notcher 21 and the side trimmer 15, the line is decelerated and the abnormality is detected. A notch is inserted at the starting point 22 of the side trimmer 15, and the set width of the side trimmer 15 is widened to the abnormal end point 23.
更に，異常終了点２３で再度ノツチをいれ、サイドトリ
マ−１５の設定幅を復原し、ラインスピードをもとの速
度に復原させる．なお、異常開始点２２と終了点２３の
間も，その区間が長い場合には途中でラインスピードを
上げても差支えない．〔発明の効果〕
本発明によるプロセスラインにおいては，従来どおり連
続焼鈍、酸洗，めっき等のプロセス部の出側に金属スト
リップの耳部を切断するサイドトリマーを有しているほ
かに、該サイドトリマーの直前に金属ストリップの両側
端部に切欠きを入れるサイドノツチャ−を設け、更に、
このサイドノツチャ−の上流に金属ストリップの板幅を
連続的に測定する板幅計を設けたので、上記従来の問題
点を解消し、次の如き効果を収めることができた．（イ
）板幅異常のある金属ストリップでも、完全自動運転で
耳切り作業が可能となり、従来の如き監視要員が不要と
なった。Furthermore, the notch is inserted again at the abnormal end point 23, the set width of the side trimmer 15 is restored, and the line speed is restored to the original speed. Furthermore, if the section between the abnormal start point 22 and the end point 23 is long, there is no problem in increasing the line speed in the middle. [Effects of the Invention] The process line according to the present invention has a side trimmer for cutting the edge of the metal strip on the exit side of the process section for continuous annealing, pickling, plating, etc. as in the past. Immediately before the trimmer, side notches are provided at both ends of the metal strip, and further,
By installing a strip width gauge upstream of this side notch to continuously measure the strip width of the metal strip, we were able to solve the above conventional problems and achieve the following effects. (a) Even for metal strips with abnormal width, it is now possible to cut edges completely automatically, eliminating the need for monitoring personnel as in the past.
（口）従来の如き耳屑が付着したままコイルに巻き取ら
れることがなくなった。(Mouth) It is no longer possible to wind up the coil with ear debris attached to it, as was the case in the past.
（ハ）サイドトリマーの噛込み不良による異常がなくな
った．
（二）耳切りが正常にできなかった部分も、開始点と終
了点に切欠きが入れられているので、光学的検出器によ
り正確に把握できるため、後工程での処理が容易である
。(c) Abnormalities caused by poor engagement of the side trimmer have disappeared. (2) Since notches are made at the start and end points of the parts where the edges cannot be cut properly, they can be accurately detected by an optical detector, making post-processing easier.
第ｌ図は本発明による連続プロセスラインにおける金属
ストリップのサイドトリミング装置の配置を示す模式断
面図、第２図は、異常鋼板に切欠きを入れる異常部開始
点と終了点を示す模式平面図、第３図は連続プロセスラ
インにおける従来のサイドトリミング方法を説明する平
面図，第４図はサイドトリマーの突然の解放によって発
生する耳肩付着の金属ストリップを示す平面図、第５図
は従来のサイドトリマーの噛込み不良の金属ストリップ
を示す模式平面図である。
１・・・金属ストリップ（鋼板），２・・・耳部３・・
・板幅異常部，
４・・・サイドトリマー解放部FIG. 1 is a schematic cross-sectional view showing the arrangement of a metal strip side trimming device in a continuous process line according to the present invention, FIG. Fig. 3 is a plan view illustrating the conventional side trimming method in a continuous process line, Fig. 4 is a plan view showing metal strips attached to the ears and shoulders caused by the sudden release of the side trimmer, and Fig. 5 is a plan view illustrating the conventional side trimming method. FIG. 3 is a schematic plan view showing a metal strip that is poorly bitten by a trimmer. 1... Metal strip (steel plate), 2... Ear part 3...
・Abnormal board width part, 4...Side trimmer release part
Claims (2)
トリマーを設け該金属ストリップの耳部を切断する工程
を有して成る連続プロセスラインにおける金属ストリッ
プのサイドトリミング方法において、前記連続プロセス
ラインに連続板幅計を設け前記金属ストリップの板幅を
連続的に測定する段階と、前記連続板幅計により検出さ
れた板幅異常部開始点に切欠きを入れる段階と、前記板
幅異常部開始点が前記サイドトリマーに接近した時点で
ラインスピードを低減する段階と、前記サイドトリマー
の設定幅を板幅異常部終了点まで拡大する段階と、前記
板幅異常部終了点に切欠きを入れる段階と、前記サイド
トリマーの設定幅およびラインスピードを復原する段階
と、を有することを特徴とする連続プロセスラインにお
ける金属ストリップのサイドトリミング方法。(1) In a method for side trimming a metal strip in a continuous process line, the method includes the step of providing a side trimmer on the exit side of a continuous process section of the metal strip and cutting the ears of the metal strip, which is continuous to the continuous process line. a step of providing a sheet width meter and continuously measuring the sheet width of the metal strip; a step of making a notch at the starting point of the abnormal sheet width detected by the continuous sheet width meter; and a step of making a notch at the starting point of the abnormal sheet width portion. reducing the line speed when the line approaches the side trimmer, expanding the set width of the side trimmer to the end point of the abnormal board width part, and making a notch at the end point of the abnormal board width part. A method for side trimming a metal strip in a continuous process line, comprising the steps of: restoring the set width and line speed of the side trimmer.
リップの耳部を切断するサイドトリマーを有して成る連
続プロセスラインにおける金属ストリップのサイドトリ
ミング装置において、前記サイドトリマーの直前に設け
られ前記金属ストリップの両側端部に切欠きを入れるサ
イドノツチヤーと、前記サイドノツチヤーの上流に設け
られ前記金属ストリップの板幅を連続的に測定する板幅
計と、を有することを特徴とする連続プロセスラインに
おける金属ストリップのサイドトリミング装置。(2) A side trimming device for a metal strip in a continuous process line comprising a side trimmer for cutting the edge of the strip on the exit side of a continuous process section for the metal strip, which is provided immediately before the side trimmer to cut the edge of the metal strip. A continuous process characterized by having a side notch which makes notches at both ends of the strip, and a strip width meter provided upstream of the side notcher and which continuously measures the strip width of the metal strip. Side trimming equipment for metal strips in line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30725489A JPH03166006A (en) | 1989-11-27 | 1989-11-27 | Method and device of side trimming for metal strip in continuous process line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30725489A JPH03166006A (en) | 1989-11-27 | 1989-11-27 | Method and device of side trimming for metal strip in continuous process line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03166006A true JPH03166006A (en) | 1991-07-18 |
Family
ID=17966891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30725489A Pending JPH03166006A (en) | 1989-11-27 | 1989-11-27 | Method and device of side trimming for metal strip in continuous process line |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03166006A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010099681A (en) * | 2008-10-22 | 2010-05-06 | Sumitomo Metal Ind Ltd | Facility and method for continuously treating steel strip |
| JP2010137334A (en) * | 2008-12-12 | 2010-06-24 | Sumitomo Metal Ind Ltd | Continuous treatment apparatus of steel strip and continuous treatment method |
-
1989
- 1989-11-27 JP JP30725489A patent/JPH03166006A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010099681A (en) * | 2008-10-22 | 2010-05-06 | Sumitomo Metal Ind Ltd | Facility and method for continuously treating steel strip |
| JP2010137334A (en) * | 2008-12-12 | 2010-06-24 | Sumitomo Metal Ind Ltd | Continuous treatment apparatus of steel strip and continuous treatment method |
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