JP3849807B2

JP3849807B2 - Pressure welding equipment

Info

Publication number: JP3849807B2
Application number: JP05548695A
Authority: JP
Inventors: 紀夫岩波; 信広田添; 正海沖; 浩一坂本
Original assignee: 石川島播磨重工業株式会社
Priority date: 1995-03-15
Filing date: 1995-03-15
Publication date: 2006-11-22
Anticipated expiration: 2021-11-22
Also published as: JPH08252608A

Description

【０００１】
【産業上の利用分野】
本発明は、熱間圧延設備において、先行する圧延材の後端と後続する圧延材の先端とを圧接接合する設備に係わり、特に圧接接合部の板幅端を整形する装置を備えた圧接接合設備に関する。
【０００２】
【従来の技術】
従来の熱間圧延設備では加熱炉から供給されるスラブを粗圧延機及び仕上圧延機で圧延し、所望の板厚のストリップ材を得ている。しかしかかる方法ではスラブ単位ごとに圧延作業が行われることになるので、連続した圧延作業を行うことが要望されていた。またこのようにスラブ単位で圧延する場合、圧延材の端部（前端部と後端部）に欠陥を生じ易く圧延材の歩留まりを低下させ、かつ噛込みや尻抜け等のため圧延速度を高速化しにくい問題点があった。このため粗圧延機で圧延された圧延材の後端と次の圧延材の前端とを接合して仕上圧延機に供給する接合装置が提案されている。
【０００３】
【発明が解決しようとする課題】
特開昭６２−２５２６０３号の「板接合方法」は接合すべき板の端部相互間に、継手を打ち込んで接合するものであるが、圧延材の幅全体にわたり十分な接合強度を確保するには多数の継手を短時間で打ち込む必要があり、自動化（機械化）が困難であり、かつ継手部を均一に圧延できない問題点があった。また、特開昭６３−９３４０８号の「バー接合設備」は、圧延材にループを形成して、後端と先端を圧接するものであるが、比較的厚いバー材をループに形成するため、バー材に曲げ癖が付きやすくかつ十分な接合時間を確保できず、また後端と先端を圧接しても圧延材の幅全体にわたり十分な接合強度を確保できない問題点があった。更に、特公平５−１３９号の「帯板の走間溶接装置」は、圧延材とともに走行しながら後端と先端を溶接接合する装置であるが、幅広の圧延材を溶接するには時間がかかるため設備全体が長くなりやすく、かつ接合部に凸凹が生じやすく、接合部を均一に圧延することが困難である問題点があった。また、上記の接合装置を既存のラインに追加する場合、既存ラインの改造が大掛かりとなり、生産休止時間も長くなるという問題が生じる。
【０００４】
また、重ね合わせ圧接接合する場合、先行する圧延材の後端と後続する圧延材の先端とを重ね合わせて圧縮接合するが、先行圧延材と後続圧延材の板幅が異なる場合があること、および圧接により圧接部の板幅端部が外側に膨張するため、図４（Ａ）、（Ｂ）に示すような板幅方向に突出した形状となる。圧延材は圧接接合後、５〜７台の仕上圧延機で仕上げ圧延されるが、このような突出した形状の部分が圧延機に入ると、圧延機に損傷を与え、圧延ラインを停止させ、生産を低下させる場合がある。このため仕上げ圧延前に滑らかな形状となるように切断する必要がある。また切断作業により切断部の板表面にノロとか、バリなどが付着するのでこれを除去し、仕上げ圧延機に損傷を与えないようにしなければならない。
【０００５】
本発明は上述した種々の問題点を解決するために創案されたものである。すなわち本発明の目的は、先行する圧延材の後端と後続する圧延材の先端とを圧延材とともに走行しながら接合することができ、短時間に圧延材の幅全体にわたり十分な接合強度で接合することができ、接合部の凹凸が少なく接合部をほぼ均一に加工できるようにする。さらに圧接接合により圧接部の板幅端部に生じた板幅方向の突出部を滑らかに切断することを目的とする。また、その切断によって生じるノロやバリ等を除去することを目的とする。
【０００６】
【課題を解決するための手段】
上記目的を達成するため、請求項１の発明では、先行する圧延材の後端部と後続する圧延材の先端部を重ね合わせ圧接する圧延材接合装置と、該圧延材接合装置により圧接された接合部の板幅端部を整形する整形装置と、該整形装置の下流側に設けられ該整形装置による整形によって板幅端部の板表面に生じた滓を除去する整形後処理装置と、からなり、前記圧延材接合装置は、圧延方向に走行する台車と、該台車上に取付けられ先行する圧延材の後端部を水平に挟持して上下動可能な後端クランプ装置と、前記台車上に取付けられ後続する圧延材の先端部を水平に挟持する先端クランプ装置と、先行圧延材の後端部下面と後続圧延材の先端部上面を切削加工する加工装置と、該加工面を還元状態に保持する還元保持装置と、先行圧延材と後続圧延材の加工面を重ね合わせてほぼ同一厚さまで圧縮する圧接装置とを備え、前記整形装置は、板幅端部を切断する切断ヘッドと、該切断ヘッドを板幅方向に往復動する第１横往復動装置を有し、前記整形後処理装置は、圧延材の板幅端部で、圧延材表面を加工するカッター装置と、該カッター装置を板幅方向に往復動する第２横往復動装置と、前記カッター装置を圧延材表面に接近離脱させる上下動装置とを有し、前記加工装置は、圧延材の幅方向の第１の軸心を中心に回転する円筒形カッタと、該カッタを圧延材に対して斜め方向に移動するよう圧延材の幅方向の第２の軸心を中心に揺動させる揺動装置と、カッタを圧延方向に前後進させる往復動装置と、からなる、ものである。
【０００７】
請求項２の発明では、圧延方向に走行する台車と、該台車上に取付けられ先行する圧延材の後端部を水平に挟持して上下動可能な後端クランプ装置と、前記台車上に取付けられ後続する圧延材の先端部を水平に挟持する先端クランプ装置と、先行圧延材の後端部下面と後続圧延材の先端部上面を切削加工する加工装置と、該加工面を還元状態に保持する還元保持装置と、先行圧延材と後続圧延材の加工面を重ね合わせてほぼ同一厚さまで圧縮する圧接装置と、前記台車上に取付けられ前記圧接装置により圧接された接合部の板幅端部を整形する整形装置と、該整形装置の下流側でかつ台車上に設けられ該整形装置による整形によって板幅端部の板表面に生じた滓を除去する整形後処理装置と、を備え、前記整形装置は、板幅端部を切断する切断ヘッドと、該切断ヘッドを板幅方向に往復動する第１横往復動装置とを有し、前記整形後処理装置は、圧延材の板幅端部で、圧延材表面を加工するカッター装置と、該カッター装置を板幅方向に往復動する第２横往復動装置と、前記カッター装置を圧延材表面に接近離脱させる上下動装置とを有し、前記加工装置は、圧延材の幅方向の第１の軸心を中心に回転する円筒形カッタと、該カッタを圧延材に対して斜め方向に移動するよう圧延材の幅方向の第２の軸心を中心に揺動させる揺動装置と、カッタを圧延方向に前後進させる往復動装置と、からなる、ものである。
【０００８】
請求項３の発明では、前記整形装置は、前記切断ヘッドを圧延方向に往復動する縦往復動装置を有するものである。
【０００９】
請求項４の発明では、前記整形装置はプラズマ発生装置を有し、前記切断ヘッドよりプラズマを照射するものである。
【００１０】
請求項５の発明では、前記整形装置はレーザー発生装置を有し、前記切断ヘッドよりレーザーを照射するものである。
【００１１】
請求項６の発明では、前記整形装置は、前記切断ヘッドに回転駆動装置を有するカッターを有するものである。
【００１２】
【００１３】
【００１４】
【作用】
請求項１の発明では、圧延材接合装置は、後端クランプ装置と先端クランプ装置により、先行圧延材と後続圧延材を挟持したままで台車が圧延方向に走行するので、圧延材を連続的に仕上圧延機に供給できる。また、加工装置により接合面を切削加工し圧延装置により圧縮するが、これにより切削加工と圧接を連続して行えるため短時間に圧接でき高速圧接が可能となる。この際還元保持装置により加工面を還元状態にして圧接するので十分な接合強度が得られる。また、圧接装置は先行圧延材と後続圧延材の加工面を重ね合わせてほぼ同一厚さまで圧縮するのでほぼ均一な接合部が得られる。なお、圧縮の際圧縮部の板幅端部に板幅方向に突出部を生じる。整形装置は切断ヘッドによりこの突出部を切断する。圧延材は一定速度で走行しているので、第１横往復動装置により切断ヘッドを板幅方向に移動することにより突出部を滑らかな形状に切断することができる。また、整形装置の下流側に設けられた整形後処理装置により、圧接部の板幅端部で、板表面に生じたノロやバリを除去する。ノロはプラズマやレーザー切断した場合に発生し、バリはカッターで切断した場合に発生する。これらを除去し、後続する仕上圧延機の作業ロールを保護する。ノロやバリはカッターにより除去し、第２横往復動装置によりカッターの位置を調整して、ノロやバリの発生範囲内をカバーするようにする。圧延材は一定速度で走行しているので、圧接部が来た時上下動装置によりカッターを板表面に接近させることによりノロやバリを除去することができる。なおカッターは回転カッターでも静止カッターでもよい。
また、請求項１の発明では、カッターは揺動装置と往復動装置により加工位置で先行圧延材の後端部下面と後続圧延材の先端部上面を切削加工し、加工後は退避することができる。
【００１５】
請求項２の発明では、整形装置を圧延材接合装置の台車上に設置している。これにより請求項１の発明の作用に比べて、圧接部の板幅方向の突出部の切断を精度よく行うことができる。圧接が終わり台車の速度を圧延材の速度より遅くすると圧接部は下流側に整形装置まで移動する。ここで台車の速度を調整して整形装置を通過する圧延材の相対速度を切断に適した速度とし、切断ヘッドを第１横往復動装置により移動して突出部を滑らかに切断することができる。また、整形装置の下流側でかつ台車上に設けられた整形後処理装置により、圧接部の板幅端部で、板表面に生じたノロやバリを除去する。整形装置により、圧接部の板幅端部の整形が終了した後、台車の速度を遅くすると圧接部は整形後処理装置の位置にくるので、第２横往復動装置によりカッターの位置を調整し、上下動装置によりカッターを板表面に接近させてカッターによりノロやバリを除去することができる。なおカッターは回転カッターでも静止カッターでもよい。
また、請求項２の発明では、カッターは揺動装置と往復動装置により加工位置で先行圧延材の後端部下面と後続圧延材の先端部上面を切削加工し、加工後は退避することができる。
【００１６】
請求項３の発明では、整形装置に切断ヘッドを圧延方向に往復動する縦往復動装置を設ける。これにより切断速度を切断に適した速度に精度よく調整することが可能となり突出部を滑らかに切断することができる。
【００１７】
請求項４の発明では、切断ヘッドよりプラズマを照射して突出部を滑らかに切断する。プラズマにより高速切断が可能となる。
【００１８】
請求項５の発明では、切断ヘッドよりレーザーを照射して突出部を滑らかに切断する。レーザーにより高速切断が可能となる。
【００１９】
請求項６の発明では、切断ヘッドにカッターを設け、突出部を機械的に滑らかに切断する。プラズマやレーザー切断に比べ、装置が簡易化される。
【００２０】
【００２１】
【００２２】
【実施例】
以下、本発明の実施例について図面を参照して説明する。なお各図において同一の符号は同一の意味を表す。図１は熱間圧延設備における第１実施例の配置を示す図である。加熱炉５から送出されたスラブは粗圧延機列Ｒで圧延され、この圧延材１は切断装置６で先端部、及び後端部を切断される。圧延材接合装置１０は走行しながら先行する圧延材１ａの後端部と、後続する圧延材１ｂの先端部を重ね合わせ圧縮して圧接接合する。接合された圧接材１は整形装置７で接合部の板幅端部の突出部を除去され、整形後処理装置８で切断により発生したノロやバリを除去する。次に圧延材１は仕上圧延機列Ｆで仕上圧延され所望の板厚となりダウンコイラＤＣに巻き取られる。
【００２３】
図２は圧延材接合装置の構成を示す側面図である。図２において、圧延材接合装置１０は、圧延方向に走行する台車１２と、台車１２上に取付けられ先行する圧延材１ａの後端部を水平に挟持して上下動可能な後端クランプ装置１４と、台車１２上に取付けられ後続する圧延材１ｂの先端を水平に挟持する先端クランプ装置１６と、先行圧延材１ａの後端部下面と後続圧延材１ｂの先端部上面を加工する加工装置１８と、加工面を還元状態に保持する還元保持装置２０と、先行圧延材１ａと後続圧延材１ｂの加工面を重ね合わせて圧延材１ａ、１ｂとほぼ同じ厚さまで圧縮して接合する圧接装置２２とを備えている。
【００２４】
後端クランプ装置１４は、先行圧延材１ａの後端部を水平に支持する複数のローラ１５ａと、ローラ１５ａとの間に先行圧延材１ａの後端部を挟持し上下動するクランプ１５ｂと、先行圧延材１ａの後端下面を後述するカッター１９ａの上面に接触させる加工高さＨと、先行圧延材１ａの後端部を後続圧延材１ｂの先端部とほぼ同一高さに保持する圧接高さＬとの間を、ローラ１５ａ及びクランプ１５ｂを上下動させるる昇降シリンダ１５ｃとからなる。かかる構成により、ローラ１５ａにより先行圧延材１ａの後端部を水平に支持したまま、クランプ１５ｂにより先行圧延材１ａの後端を挟持できる。また、昇降シリンダ１５ｃによりローラ１５ａ及びクランプ１５ｂを加工高さＨに保持して、単一のカッター１９ａで先行圧延材１ａの後端部下面と後続圧延材１ｂの先端部上面を切削加工することができ、さらに圧接高さＬに保持して先行圧延材１ａと後続圧延材１ｂの加工面を重ね合わせ、圧接装置２２により圧縮して接合することができる。
【００２５】
先端クランプ装置１６は、後続圧延材１ｂの先端部を水平に支持するローラ１７ａと、ローラ１７ａとの間に後続圧延材１ｂの先端部を挟持するクランプ１７ｂとからなる。この構成により、ローラ１７ａにより後続圧延材１ｂを水平に保持したまま、クランプ１７ｂにより後続圧延材１ｂの先端部を挟持することができる。
【００２６】
加工装置１８は、圧延材１ａ、１ｂの幅方向の軸心を中心に回転する円筒形のカッター１９ａと、カッター１９ａを斜め方向に揺動させる揺動装置１９ｂと、カッター１９ａを圧延方向に前後進させる往復動装置１９ｃとからなる。カッター１９ａは揺動装置１９ｂのアーム先端に取付けられ、図示しない回転駆動装置により回転する。カッター１９ａは揺動装置１９ｂと往復動装置１９ｃにより図２で太い方の線で示す加工位置で先行圧延材１ａの後端部下面と後続圧延材１ｂの先端部上面を切削加工し、加工後細い方の線で示す位置に退避する。
【００２７】
圧接装置２２では、先行圧延材１ａの後端部上面に接する下面を有する上型２３ａと、後続圧延材１ｂの先端部下面に接する上面を有する下型２３ｂと、上型２３ａ及び下型２３ｂを挟持して圧縮するプレス装置２３ｃとからなる。下型２３ｂは台車１２に固定されている。また、上型２３ａはプレス装置２３ｃのラム２３ｅの下面に取付けられ、ラム２３ｅとともに昇降する。かかる構成により、加工装置１８による加工中に、先行圧延材１ａの後端部と後続圧延材１ｂの先端部を、上型２３ａ及び下型２３ｂで支持することができ、かつプレス装置２３ｃによりラム２３ｅを降下させることにより、先行圧延材１ａと後続圧延材１ｂの加工面を重ね合わせて圧縮し、圧延材１ａ、１ｂとほぼ同一の厚さにすることができる。
【００２８】
還元保持装置２０は、コークス炉ガス、ＬＰＧ、ＬＮＧ等の可燃性ガスを完全燃焼させる量よりも少ない酸素で燃焼させて還元炎を生成し、加工面に吹き付けて酸化を防ぐ還元炎バーナ２０ａ、２０ｂよりなり、還元炎バーナ２０ａはローラ１５ａのフレームに、還元炎バーナ２０ｂは固定スタンド２１を介して台車１２に取付けられ、先行圧延材１ａと後続圧延材１ｂの加工面に向けて還元ガスを吹きつけ、切削面を常に還元状態に保持している。図２において台車１２は、複数の車輪１３を有し、圧延方向に延びたレール３上を走行する。圧接時は矢印で示すように図面上で左側に走行する。Ｂは圧延装置の圧延高さであり、複数のローラ４が圧延材１を圧延高さＢで支持し圧延方向に移動させる。レール３はローラ４を跨ぐ位置に配置され、圧接高さＬを圧延高さＢより高くして、レール３より高い位置で台車１２が走行できるようにしている。圧延材１ａ、１ｂを圧延装置の圧延高さＢから先端クランプ装置１６に案内し、かつ後端クランプ装置１４から圧延高さＢに案内する上下に揺動可能な傾斜ガイド２４、２５が設けられている。これにより既存の圧延装置をそのまま稼働させることができる。
【００２９】
図３（Ａ）は整形装置７の断面図を示し、（Ｂ）は平面図を示す。切断ヘッド３０にはプラズマを照射するプラズマトーチ、レーザーを照射するレーザー照射口、または、回転駆動装置と一体となった円筒形カッター等が取り付けられる。なお、図示していないプラズマ発生装置やレーザー発生源装置は整形装置７の近傍に設置されている。切断ヘッド３０のうち右側のものは、プラズマトーチまたはレーザー照射口を有するものを示し、左側のものは円筒形カッターを取り付けた場合を示す。切断ヘッド３０には、これら３つの内、いずれか１つが装着される。切断ヘッド３０を支持する支持材３１は基板３２上を矢印で示す板幅方向に摺動する。切断ヘッド３０は支持材３１先端に取付けられた円筒３０ａを上下に摺動可能で止めネジ３０ｂにより所望の位置に固定される。これにより圧延材１の板厚に合わせて切断ヘッド３０の位置を調整できる。シリンダ３３は支持板３２ａを介して基板３２に固定され、支持材３１を板幅方向に往復動して圧延材圧接部の板幅端を滑らかに切断できるようにする。基板３２にはシリンダ３４が設けられ切断ヘッド３０を圧延方向に往復動して切断速度を調整する。これにより圧延材１の速度とは独立に最適の切断速度で切断ヘッド３０を圧延材１に対して設定することができる。シリンダ３３、シリンダ３４は図示しない制御装置により圧延材１の走行速度、圧接部の板幅の差や板幅の位置などのデータに基づき制御される。
【００３０】
図４は圧接部の平面図を示し、（Ａ）は先行圧延材１ａの板幅が後続圧延材１ｂよりも小さい場合を示し、（Ｂ）は大きい場合を示す。接合される板幅は呼称寸法が異なる場合と、呼称寸法は同じであるが許容差内で異なる場合がある。程度の違いはあれ異なる場合が普通である。このように接合前の板幅の違いと、重ね圧接により、幅方向外側に膨張する変形とが重なり、（Ａ），（Ｂ）に示したような突出部が形成される。この突出部を破線で示すように滑らかに切断する。
【００３１】
図５は整形後処理装置８で、（Ａ）は断面図、（Ｂ）は平面図を示す。圧延材１の端部の下面に回転カッター３５と、これを回転駆動する回転駆動装置３６が設けられ、支持板３７上を圧延材幅方向にシリンダ３８により往復動し、整形装置７で整形した範囲内をカバーする。支持板３７は基板４０上に設けられたシリンダ３９により上下動し、回転カッター３５が圧延材１下面に接触するようにする。整形装置７の切断ヘッド３０がプラズマトーチやレーザー照射口を有する場合、切断に伴って圧延材１下面にノロが発生するのでこれらを回転カッター３５で除去する。また円筒形カッターの場合、バリ等が発生する。バリの場合圧延材１の上面にも発生することがあるので、上面にも回転カッター３５を設けることがある。このように、圧延材表面にあるものを回転カッター３５で除去し、表面を滑らかにして、後続する仕上圧延機の作業ロール面に損傷を与えないようにする。この除去作業は走行する圧延材１に対して行われる。なおカッターとしては静止したカッターを用いてもよい。
【００３２】
次に第２実施例を説明する。本実施例は圧延材接合装置１０に整形装置７と整形後処理装置８を設置したものである。図６は圧接接合が終了した後の圧延材接合装置１０を示す。後端クランプ装置１４の下流側に整形装置７と整形後処理装置８を設ける。他は図２に示した圧延材接合装置１０と同じである。
【００３３】
図７（Ａ）は整形装置７の断面図で、（Ｂ）平面図である。整形装置７は基板３２をシリンダ３４で圧延方向に往復動するようになっており、図３で示した第１実施例の場合同じである。圧接が終わると台車１２の速度を遅くし圧接部が整形装置７に来た時、速度を再び圧延材１の速度と同じくする。次いでシリンダ３３と３４を動作させ圧接部の幅端を滑らかに切断する。なお、シリンダ３４の代わりに台車１２の走行速度を調整しても同様に、圧接部の幅端を切断することができる。
【００３４】
図８は整形後処理装置８を示し、（Ａ）が断面図、（Ｂ）が平面図である。基板４０をシリンダ４１で圧延方向に往復動させる点が図５に示した第１実施例と相違する。整形装置７により圧接部の端部の切断が終わると、台車１２の速度を遅くし圧接部が整形後処理装置８に来た時、速度を再び圧延材１の速度と同じくする。次いでシリンダー３７により回転カッター３５を圧接部の端部の下面に移動し、回転カッター３５を回転し、シリンダ３９により高さを調整した後、シリンダ４１により圧延方向に移動してノロ等を除去する。なお、シリンダ４１の代わりに台車１２の走行速度を調整しても同様に、圧接部の幅端のノロ等を除去することができる。他は第１実施例と同じである。なお、図８は回転カッター３５を圧延材１の下面に設けたが、バリなどが上面にもでる場合、上面にも設ける。また、カッターを回転カッターとしたが静止カッターとしてもよい。
【００３５】
【発明の効果】
以上の説明から明らかなように、本発明は既存の設備に台車を走行させる設備を設ければよいので、既存設備への影響が少なく、既存ラインを停止することなく、本発明の設備の設置が可能となる。また、圧接面の加工と圧縮を連続して行うことによる高速圧接、加工面を還元状態して圧接することによる十分な接合強度、および重ね合わせ面を圧延材とほぼ同一厚さまで圧縮しほぼ均一な厚みとすることによる安定した接合強度を得ることができる。さらに、圧延材接合装置の下流側に幅方向の突出部を整形する整形装置を設けることにより、板幅の違いと圧接による幅方向の膨張とによる突出部を滑らかに整形することができ、以降の圧延機の通板性を向上させ、ライン停止を回避して生産性を向上させる。更に整形後処理部により突出部切断によるノロやバリなどを除去することにより、以降の圧延機のロールに損傷が生ずるのを防止できる。また圧延材接合装置の台車に整形装置および整形後処理装置を取り付けることにより、圧接部端部の切断やノロやバリ取りを精度よく行うことができる。また、カッターは揺動装置と往復動装置により加工位置で先行圧延材の後端部下面と後続圧延材の先端部上面を切削加工し、加工後は退避することができる。
【図面の簡単な説明】
【図１】熱間圧延設備における第１実施例の構成装置を説明する図である。
【図２】第１実施例の圧延材接合装置の構成を示す側面図である。
【図３】第１実施例の整形装置の断面図と平面図である。
【図４】整形装置による板幅突出部の切断状況を説明する図である。
【図５】第１実施例の整形後処理装置の断面図と平面図を示す図である。
【図６】第２実施例の圧延材接合装置の構成を示す側面図である。
【図７】第２実施例の整形装置の断面図と平面図である。
【図８】第２実施例の整形後処理装置の断面図と平面図を示す図である。
【符号の説明】
１圧延材
１ａ先行圧延材
１ｂ後続圧延材
３レール
４ローラ
５加熱炉
６切断装置
７整形装置
８整形後処理装置
１０圧延材接合装置
１２台車
１３車輪
１４後端クランプ装置
１６先端クランプ装置
１８加工装置
２０還元保持装置
２０ａ、２０ｂ還元炎バーナ
２１固定スタンド
２２圧接装置
２４、２５傾斜ガイド
３０切断ヘッド
３１支持材
３２，４０基板
３３シリンダ（第１横往復動装置）
３４シリンダ（縦往復動装置）
３５回転カッター（カッター装置）
３６回転駆動装置（カッター装置）
３７支持板
３８シリンダ（第２横往復動装置）
３９シリンダ（上下動装置）
４１シリンダ
Ｈ加工高さ
Ｌ圧接高さ
Ｂ圧延高さ
Ｒ粗圧延機列
Ｆ仕上圧延機列
ＤＣダウンコイラ[0001]
[Industrial application fields]
TECHNICAL FIELD The present invention relates to a facility for press-welding a trailing end of a preceding rolled material and a leading end of a succeeding rolled material in a hot rolling facility, and in particular, a pressure-welding including a device for shaping a plate width end of a pressure-bonding joint. Regarding equipment.
[0002]
[Prior art]
In a conventional hot rolling facility, a slab supplied from a heating furnace is rolled by a rough rolling mill and a finish rolling mill to obtain a strip material having a desired plate thickness. However, in such a method, since the rolling operation is performed for each slab unit, it has been desired to perform a continuous rolling operation. In addition, when rolling in slab units in this way, defects are likely to occur at the ends (front end and rear end) of the rolled material, and the yield of the rolled material is reduced, and the rolling speed is increased due to biting and slipping off. There was a problem that was difficult to convert. For this reason, there has been proposed a joining apparatus that joins the rear end of the rolled material rolled by the rough rolling mill and the front end of the next rolled material and supplies them to the finishing mill.
[0003]
[Problems to be solved by the invention]
Japanese Patent Application Laid-Open No. Sho 62-252603 discloses a “plate joining method” in which joints are driven between the ends of the plates to be joined. In order to ensure sufficient joint strength over the entire width of the rolled material. However, it is necessary to drive a large number of joints in a short time, and automation (mechanization) is difficult, and the joint part cannot be rolled uniformly. In addition, the “bar joining facility” of JP-A-63-93408 forms a loop in the rolled material and press-contacts the rear end and the front end, but in order to form a relatively thick bar material in the loop, There is a problem that the bar material is likely to be bent and a sufficient joining time cannot be secured, and even if the rear end and the leading end are pressed together, a sufficient joining strength cannot be secured over the entire width of the rolled material. Furthermore, the “Bet plate running welding device” of Japanese Patent Publication No. 5-139 is a device that welds and joins the rear end and the leading end while running with the rolled material, but it takes time to weld a wide rolled material. For this reason, there is a problem in that the entire facility tends to be long and unevenness is likely to occur at the joint, making it difficult to uniformly roll the joint. In addition, when the above-described joining device is added to an existing line, there is a problem that the existing line is remodeled and the production downtime becomes longer.
[0004]
In addition, in the case of overlap welding, the rear end of the preceding rolled material and the leading end of the subsequent rolled material are overlapped and compression bonded, but the plate width of the preceding rolled material and the subsequent rolled material may be different. Since the plate width end portion of the pressure contact portion expands outward due to the pressure contact, the shape protrudes in the plate width direction as shown in FIGS. 4 (A) and 4 (B). The rolled material is finish-rolled by 5 to 7 finishing mills after pressure welding, but when such protruding parts enter the rolling mill, the rolling mill is damaged and the rolling line is stopped. Production may be reduced. For this reason, it is necessary to cut | disconnect so that it may become a smooth shape before finish rolling. In addition, since cutting or burr or the like adheres to the surface of the cut portion by the cutting operation, it must be removed so as not to damage the finish rolling mill.
[0005]
The present invention has been made to solve the various problems described above. That is, the object of the present invention is to join the trailing end of the preceding rolled material and the leading end of the succeeding rolled material while traveling together with the rolled material, and with sufficient joining strength over the entire width of the rolled material in a short time. It is possible to reduce the unevenness of the joint and to process the joint almost uniformly. Furthermore, it aims at cutting | disconnecting the protrusion part of the board width direction which arose in the board width edge part of a press-contact part by pressure welding. It is another object of the present invention to remove chips, burrs and the like generated by the cutting.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, in the first aspect of the present invention, a rolling material joining apparatus that presses and overlaps the trailing end of the preceding rolled material and the leading end of the succeeding rolled material, and the rolled material joining apparatus press-contacts the rolled material. A shaping device for shaping the plate width end portion of the joint portion, and a post-shaping processing device for removing wrinkles generated on the plate surface at the plate width end portion by shaping by the shaping device provided on the downstream side of the shaping device. The rolling material joining device comprises: a cart that travels in the rolling direction; a rear end clamping device that is mounted on the cart and that can move up and down by horizontally holding a rear end portion of the preceding rolled material; and A tip clamp device that horizontally holds the tip of the subsequent rolled material attached to the machine, a processing device that cuts the lower surface of the rear end of the preceding rolled material, and the upper surface of the tip of the subsequent rolled material, and a reduced state of the processed surface Reduction holding device, pre-rolled material and after A pressure welding device that overlaps the processed surfaces of the rolled material and compresses them to substantially the same thickness. The shaping device includes a cutting head that cuts the plate width end portion, and a first that reciprocates the cutting head in the plate width direction. A post-shaping device having a horizontal reciprocating device, the post-shaping processing device being a cutter device that processes the surface of the rolled material at a plate width end of the rolled material, and a second horizontal reciprocating motion that reciprocates the cutter device in the plate width direction. And a vertical movement device that moves the cutter device closer to and away from the surface of the rolled material, and the processing device includes a cylindrical cutter that rotates about a first axis in the width direction of the rolled material, and the cutter A swing device that swings about the second axis center in the width direction of the rolled material so as to move in an oblique direction with respect to the rolled material, and a reciprocating device that moves the cutter back and forth in the rolling direction. Is.
[0007]
According to the invention of claim 2 , a cart traveling in the rolling direction, a rear end clamping device which is horizontally attached to the rear end of the rolled material attached on the cart and can be moved up and down, and mounted on the cart A leading end clamping device that horizontally holds the leading end portion of the subsequent rolled material, a processing device that cuts the bottom end portion lower surface of the preceding rolled material and the top end surface of the succeeding rolled material, and holds the processing surface in a reduced state. A reduction holding device, a pressure welding device that compresses the processed surfaces of the preceding rolled material and the subsequent rolled material to approximately the same thickness, and a plate width end portion of the joint that is mounted on the carriage and is pressure-welded by the pressure welding device And a post-shaping processing device that removes wrinkles that are provided on the carriage downstream of the shaping device and formed on the carriage by shaping with the shaping device. The shaping device cuts the edge of the plate width. A first horizontal reciprocating device that reciprocates the cutting head in the plate width direction, and the post-shaping processing device includes a cutter device that processes the surface of the rolled material at the plate width end portion of the rolled material; , A second lateral reciprocating device that reciprocates the cutter device in the plate width direction, and a vertical movement device that moves the cutter device closer to and away from the surface of the rolled material, the processing device in the width direction of the rolled material A cylindrical cutter that rotates about a first axis, and a swinging device that swings about a second axis in the width direction of the rolled material so as to move the cutter in an oblique direction with respect to the rolled material ; And a reciprocating device for moving the cutter back and forth in the rolling direction.
[0008]
In the invention of claim 3, the shaping device has a vertical reciprocating device for reciprocating the cutting head in the rolling direction.
[0009]
According to a fourth aspect of the present invention, the shaping device has a plasma generating device, and irradiates plasma from the cutting head.
[0010]
According to a fifth aspect of the present invention, the shaping device has a laser generator, and the laser beam is emitted from the cutting head.
[0011]
According to a sixth aspect of the present invention, the shaping device includes a cutter having a rotary drive device on the cutting head.
[0012]
[0013]
[0014]
[Action]
In the invention of claim 1 , the rolling material joining device is configured such that the carriage travels in the rolling direction while sandwiching the preceding rolled material and the succeeding rolled material by the rear end clamping device and the front end clamping device. Can be supplied to finishing mills. In addition, the joint surface is cut by a processing device and compressed by a rolling device. This enables continuous cutting and press-contacting, enabling press-contact in a short time and high-speed press-contact. At this time, since the processed surface is brought into a reduced state and pressed by the reduction holding device, sufficient bonding strength can be obtained. Further, since the pressure welding apparatus superimposes the processed surfaces of the preceding rolled material and the succeeding rolled material and compresses them to substantially the same thickness, a substantially uniform joint can be obtained. In addition, a protrusion is generated in the plate width direction at the plate width end of the compression portion during compression. The shaping device cuts this protrusion with a cutting head. Since the rolled material travels at a constant speed, the protruding portion can be cut into a smooth shape by moving the cutting head in the plate width direction by the first lateral reciprocating device. Further, by a post-shaping processing device provided on the downstream side of the shaping device, the chips and burrs generated on the plate surface are removed at the plate width end portion of the press contact portion. Noro occurs when plasma or laser cutting, and burr occurs when cutting with a cutter. These are removed to protect the work roll of the subsequent finishing mill. Noro and burrs are removed by a cutter, and the position of the cutter is adjusted by the second lateral reciprocating device so as to cover the generation range of noro and burrs. Since the rolled material travels at a constant speed, when the pressure contact portion comes, it is possible to remove the chips and burrs by bringing the cutter closer to the plate surface by the vertical movement device. The cutter may be a rotary cutter or a stationary cutter.
In the invention of claim 1 , the cutter cuts the rear end lower surface of the preceding rolled material and the upper end surface of the subsequent rolled material at the processing position by the swinging device and the reciprocating device, and retracts after the processing. it can.
[0015]
In the invention of claim 2 , the shaping device is installed on the cart of the rolling material joining device. Thereby, compared with the effect | action of invention of Claim 1, the cutting | disconnection part of the plate width direction of a press-contact part can be cut | disconnected accurately. When the pressure welding is finished and the speed of the carriage is made lower than the speed of the rolling material, the pressure welding part moves to the shaping device downstream. Here, the speed of the carriage is adjusted so that the relative speed of the rolled material passing through the shaping device is a speed suitable for cutting, and the cutting head can be smoothly cut by moving the cutting head by the first lateral reciprocating device. . In addition, the post-processing device provided on the downstream side of the shaping device and on the carriage removes the chips and burrs generated on the plate surface at the plate width end of the press contact portion. After the shaping device finishes shaping the plate width end of the pressure contact part, if the speed of the carriage is lowered, the pressure contact part comes to the position of the post-shaping processing device, so the second lateral reciprocating device adjusts the position of the cutter. The cutter can be moved close to the surface of the plate by the vertical movement device, and the chips and burrs can be removed. The cutter may be a rotary cutter or a stationary cutter.
In the invention of claim 2 , the cutter cuts the rear end lower surface of the preceding rolled material and the upper end surface of the subsequent rolled material at the processing position by the swing device and the reciprocating device, and retracts after the processing. it can.
[0016]
In the invention of claim 3 , the shaping device is provided with a vertical reciprocating device for reciprocating the cutting head in the rolling direction. As a result, the cutting speed can be accurately adjusted to a speed suitable for cutting, and the protruding portion can be cut smoothly.
[0017]
In the invention of claim 4 , the projection is smoothly cut by irradiating with plasma from the cutting head. High-speed cutting is possible with plasma.
[0018]
In the invention of claim 5 , the projection is smoothly cut by irradiating the laser from the cutting head. Lasers enable high-speed cutting.
[0019]
In the invention of claim 6 , a cutter is provided in the cutting head, and the protruding portion is mechanically and smoothly cut. Compared with plasma or laser cutting, the apparatus is simplified.
[0020]
[0021]
[0022]
【Example】
Embodiments of the present invention will be described below with reference to the drawings. In each figure, the same numerals indicate the same meaning. FIG. 1 is a view showing the arrangement of the first embodiment in a hot rolling facility. The slab delivered from the heating furnace 5 is rolled by the rough rolling machine row R, and the rolled material 1 is cut at the front end and the rear end by the cutting device 6. The rolling material joining apparatus 10 presses and joins the rear end portion of the preceding rolled material 1a and the leading end portion of the succeeding rolled material 1b while running while being compressed. The joined pressure welding material 1 is removed by the shaping device 7 at the protruding portion at the plate width end portion, and the post-shaping processing device 8 removes the chips and burrs generated by the cutting. Next, the rolled material 1 is finish-rolled by a finish rolling mill row F to have a desired thickness, and is wound around the downcoiler DC.
[0023]
FIG. 2 is a side view showing the configuration of the rolled material joining apparatus. In FIG. 2, a rolling material joining apparatus 10 includes a carriage 12 that travels in the rolling direction, and a rear end clamping apparatus 14 that can be moved up and down by horizontally holding a rear end portion of a rolling material 1a that is mounted on the carriage 12 and precedes. A tip clamping device 16 that is mounted on the carriage 12 and horizontally holds the tip of the subsequent rolled material 1b, and a processing device 18 that processes the lower surface of the rear end of the preceding rolled material 1a and the upper surface of the tip of the subsequent rolled material 1b. A reduction holding device 20 that holds the processed surface in a reduced state, and a pressure welding device 22 that compresses and joins the processed surfaces of the preceding rolled material 1a and the subsequent rolled material 1b to approximately the same thickness as the rolled materials 1a and 1b. And.
[0024]
The rear end clamping device 14 includes a plurality of rollers 15a that horizontally support the rear end of the preceding rolled material 1a, and a clamp 15b that moves up and down while sandwiching the rear end of the preceding rolled material 1a between the rollers 15a. Processing height H for bringing the lower surface of the rear end of the preceding rolled material 1a into contact with the upper surface of a cutter 19a, which will be described later, and the pressure contact height for holding the rear end of the preceding rolled material 1a at substantially the same height as the tip of the subsequent rolled material 1b. Between the length L, it is composed of an elevating cylinder 15c that moves the roller 15a and the clamp 15b up and down. With this configuration, the rear end of the preceding rolled material 1a can be clamped by the clamp 15b while the rear end of the preceding rolled material 1a is horizontally supported by the roller 15a. Further, the roller 15a and the clamp 15b are held at the processing height H by the lifting cylinder 15c, and the rear end lower surface of the preceding rolled material 1a and the upper end surface of the subsequent rolled material 1b are cut by a single cutter 19a. In addition, the processed surfaces of the preceding rolled material 1a and the succeeding rolled material 1b can be superposed while being held at the pressure height L, and compressed by the pressure welding device 22 to be joined.
[0025]
The tip clamp device 16 includes a roller 17a that horizontally supports the tip of the subsequent rolled material 1b, and a clamp 17b that sandwiches the tip of the subsequent rolled material 1b between the roller 17a. With this configuration, the leading end portion of the subsequent rolled material 1b can be held by the clamp 17b while the subsequent rolled material 1b is held horizontally by the roller 17a.
[0026]
The processing device 18 includes a cylindrical cutter 19a that rotates about the axis in the width direction of the rolled material 1a, 1b, a swing device 19b that swings the cutter 19a in an oblique direction, and a cutter 19a that moves back and forth in the rolling direction. And a reciprocating device 19c that moves forward. The cutter 19a is attached to the tip of the arm of the swinging device 19b and is rotated by a rotation driving device (not shown). The cutter 19a uses the swinging device 19b and the reciprocating device 19c to cut the rear end lower surface of the preceding rolled material 1a and the upper end surface of the subsequent rolled material 1b at the processing position indicated by the thicker line in FIG. Retreat to the position indicated by the thin line.
[0027]
In the pressure welding device 22, an upper die 23a having a lower surface in contact with the upper surface of the rear end portion of the preceding rolled material 1a, a lower die 23b having an upper surface in contact with the lower surface of the leading end portion of the subsequent rolled material 1b, an upper die 23a, and a lower die 23b. It comprises a press device 23c that pinches and compresses. The lower mold 23 b is fixed to the carriage 12. The upper die 23a is attached to the lower surface of the ram 23e of the press device 23c and moves up and down together with the ram 23e. With this configuration, during processing by the processing apparatus 18, the rear end portion of the preceding rolled material 1a and the front end portion of the subsequent rolled material 1b can be supported by the upper mold 23a and the lower mold 23b, and the press apparatus 23c can support the ram. By lowering 23e, the processed surfaces of the preceding rolled material 1a and the succeeding rolled material 1b can be overlapped and compressed to have the same thickness as the rolled materials 1a and 1b.
[0028]
The reduction holding device 20 is a reducing flame burner 20a that generates a reducing flame by burning it with less oxygen than the amount that completely burns a combustible gas such as coke oven gas, LPG, LNG, etc., and blows the processed surface to prevent oxidation. The reducing flame burner 20a is attached to the frame of the roller 15a, and the reducing flame burner 20b is attached to the carriage 12 via the fixed stand 21, and reduces the reducing gas toward the processed surfaces of the preceding rolled material 1a and the succeeding rolled material 1b. The cutting surface is always kept in a reduced state. In FIG. 2, the carriage 12 has a plurality of wheels 13 and travels on the rail 3 extending in the rolling direction. At the time of press contact, as shown by the arrow, the vehicle travels to the left on the drawing. B is the rolling height of the rolling device, and a plurality of rollers 4 support the rolled material 1 at the rolling height B and move it in the rolling direction. The rail 3 is disposed at a position straddling the roller 4, and the press contact height L is made higher than the rolling height B so that the carriage 12 can travel at a position higher than the rail 3. Inclined guides 24 and 25 are provided that guide the rolled material 1a and 1b from the rolling height B of the rolling device to the front end clamping device 16 and guide from the rear end clamping device 14 to the rolling height B. ing. Thereby, the existing rolling apparatus can be operated as it is.
[0029]
3A shows a sectional view of the shaping device 7, and FIG. 3B shows a plan view. The cutting head 30 is attached with a plasma torch for irradiating plasma, a laser irradiation port for irradiating a laser, or a cylindrical cutter integrated with a rotation driving device. Note that a plasma generator and a laser source device (not shown) are installed in the vicinity of the shaping device 7. The right side of the cutting head 30 shows a plasma torch or a laser irradiation port, and the left side shows a case where a cylindrical cutter is attached. Any one of these three is attached to the cutting head 30. The support member 31 that supports the cutting head 30 slides on the substrate 32 in the plate width direction indicated by an arrow. The cutting head 30 can slide up and down a cylinder 30a attached to the tip of the support material 31, and is fixed at a desired position by a set screw 30b. Thereby, the position of the cutting head 30 can be adjusted according to the plate | board thickness of the rolling material 1. FIG. The cylinder 33 is fixed to the substrate 32 via a support plate 32a, and reciprocates the support material 31 in the plate width direction so that the plate width end of the rolling material pressure contact portion can be cut smoothly. The substrate 32 is provided with a cylinder 34, and the cutting head 30 is reciprocated in the rolling direction to adjust the cutting speed. As a result, the cutting head 30 can be set with respect to the rolled material 1 at an optimum cutting speed independently of the speed of the rolled material 1. The cylinders 33 and 34 are controlled by a control device (not shown) based on data such as the traveling speed of the rolled material 1, the difference in the plate width of the press contact portion, the position of the plate width, and the like.
[0030]
FIG. 4 shows a plan view of the pressure contact portion, (A) shows a case where the plate width of the preceding rolled material 1a is smaller than that of the subsequent rolled material 1b, and (B) shows a case where it is large. The plate widths to be joined may be different from each other when the nominal size is different from the case where the nominal size is the same but within the tolerance. The degree of difference is usually different. As described above, the difference in the plate width before joining and the deformation that expands outward in the width direction are overlapped by the overlap pressure welding, and the protruding portions as shown in (A) and (B) are formed. The protruding portion is cut smoothly as indicated by a broken line.
[0031]
5A and 5B show the post-shaping processing device 8, where FIG. 5A shows a cross-sectional view and FIG. 5B shows a plan view. A rotary cutter 35 and a rotary drive device 36 that rotationally drives the rotary cutter 35 are provided on the lower surface of the end portion of the rolled material 1. Cover the range. The support plate 37 is moved up and down by a cylinder 39 provided on the substrate 40 so that the rotary cutter 35 contacts the lower surface of the rolled material 1. When the cutting head 30 of the shaping device 7 has a plasma torch or a laser irradiation port, nose is generated on the lower surface of the rolled material 1 along with the cutting, and these are removed by the rotary cutter 35. In the case of a cylindrical cutter, burrs or the like are generated. In the case of burrs, since it may occur on the upper surface of the rolled material 1, a rotary cutter 35 may be provided on the upper surface. Thus, what is on the surface of the rolled material is removed by the rotary cutter 35, the surface is smoothed, and the work roll surface of the subsequent finishing mill is not damaged. This removing operation is performed on the traveling rolled material 1. A stationary cutter may be used as the cutter.
[0032]
Next, a second embodiment will be described. In this embodiment, a shaping device 7 and a post-shaping processing device 8 are installed in the rolled material joining device 10. FIG. 6 shows the rolled material joining apparatus 10 after the pressure welding is completed. The shaping device 7 and the shaping post-processing device 8 are provided on the downstream side of the rear end clamping device 14. Others are the same as the rolling-material joining apparatus 10 shown in FIG.
[0033]
FIG. 7A is a cross-sectional view of the shaping device 7 and is a plan view thereof. The shaping device 7 reciprocates the substrate 32 in the rolling direction with a cylinder 34, and is the same as in the first embodiment shown in FIG. When the pressure welding is finished, the speed of the carriage 12 is reduced, and when the pressure welding part comes to the shaping device 7, the speed is made the same as the speed of the rolled material 1 again. Next, the cylinders 33 and 34 are operated to smoothly cut the width end of the pressure contact portion. In addition, even if the traveling speed of the carriage 12 is adjusted instead of the cylinder 34, the width end of the press contact portion can be similarly cut.
[0034]
FIG. 8 shows the post-shaping processing device 8, (A) is a cross-sectional view, and (B) is a plan view. The point which makes the board | substrate 40 reciprocate in the rolling direction with the cylinder 41 is different from 1st Example shown in FIG. When the shaping device 7 finishes cutting the end of the pressure contact portion, the speed of the carriage 12 is reduced, and when the pressure contact portion arrives at the post-shaping processing device 8, the speed is made the same as that of the rolling material 1 again. Next, the rotary cutter 35 is moved to the lower surface of the end of the press contact portion by the cylinder 37, the rotary cutter 35 is rotated, the height is adjusted by the cylinder 39, and then moved in the rolling direction by the cylinder 41 to remove the slack or the like. . In addition, even if the traveling speed of the carriage 12 is adjusted instead of the cylinder 41, it is possible to remove the slack at the width end of the press contact portion. Others are the same as the first embodiment. In FIG. 8, the rotary cutter 35 is provided on the lower surface of the rolled material 1. Further, although the cutter is a rotary cutter, it may be a stationary cutter.
[0035]
【The invention's effect】
As is clear from the above description, the present invention only needs to be provided with equipment for running the carriage on the existing equipment, so there is little influence on the existing equipment, and the installation of the equipment of the present invention can be performed without stopping the existing line. Is possible. In addition, high-speed pressure welding by continuously processing and compressing the pressure contact surface, sufficient bonding strength by pressing the processed surface in a reduced state, and the overlapped surface is compressed to almost the same thickness as the rolled material. Stable bonding strength can be obtained by setting the thickness to a sufficient value. Furthermore, by providing a shaping device for shaping the protruding portion in the width direction on the downstream side of the rolled material joining device, the protruding portion due to the difference in the plate width and the expansion in the width direction due to the pressure contact can be smoothly shaped, and thereafter This improves the platenability of the rolling mill, avoids line stoppage, and improves productivity. Furthermore, it is possible to prevent damage to subsequent rolls of the rolling mill by removing the slack and burrs caused by cutting the protruding portion by the post-shaping processing section. Further, by attaching the shaping device and the post-shaping processing device to the cart of the rolling material joining device, the end of the press contact portion, cutting, deburring and deburring can be accurately performed. In addition, the cutter can cut the rear end lower surface of the preceding rolled material and the upper end surface of the subsequent rolled material at the processing position by the swinging device and the reciprocating device, and can retract after the processing.
[Brief description of the drawings]
FIG. 1 is a diagram for explaining a component device of a first embodiment in a hot rolling facility.
FIG. 2 is a side view showing the configuration of the rolling material joining apparatus of the first embodiment.
FIGS. 3A and 3B are a cross-sectional view and a plan view of the shaping apparatus according to the first embodiment. FIGS.
FIG. 4 is a diagram for explaining a cutting state of a plate width protrusion by the shaping device.
FIGS. 5A and 5B are a cross-sectional view and a plan view of the post-shaping processing apparatus according to the first embodiment. FIGS.
FIG. 6 is a side view showing a configuration of a rolled material joining apparatus according to a second embodiment.
FIGS. 7A and 7B are a cross-sectional view and a plan view of a shaping apparatus according to a second embodiment.
FIG. 8 is a cross-sectional view and a plan view of a post-shaping processing apparatus according to a second embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Rolled material 1a Pre-rolled material 1b Subsequent rolled material 3 Rail 4 Roller 5 Heating furnace 6 Cutting device 7 Shaping device 8 Shaping post-processing device 10 Rolled material joining device 12 Carriage 13 Wheel 14 Rear end clamp device 16 Tip clamp device 18 Processing device 20 Reduction holding device 20a, 20b Reduction flame burner 21 Fixed stand 22 Pressure contact device 24, 25 Inclined guide 30 Cutting head 31 Support material 32, 40 Substrate 33 Cylinder (first lateral reciprocating device)
34 cylinder (vertical reciprocating device)
35 Rotating cutter (cutter device)
36 Rotation drive device (cutter device)
37 Support plate 38 Cylinder (second lateral reciprocating device)
39 Cylinder (vertical movement device)
41 Cylinder H Processing height L Pressure height B Rolling height R Coarse rolling mill row F Finish rolling mill row DC Downcoiler

Claims

A rolling material joining device that superimposes and presses the trailing end portion of the preceding rolled material and the leading end portion of the following rolled material, and a shaping device that shapes the plate width end portion of the joining portion pressed by the rolling material joining device; A post-shaping processing device that is provided on the downstream side of the shaping device and removes wrinkles generated on the plate surface at the plate width end by shaping by the shaping device,
The rolling material joining device includes a cart that travels in the rolling direction, a rear end clamping device that can be moved up and down by horizontally holding the rear end portion of the rolled material that is mounted on the cart and precedes, and is mounted on the cart. A leading end clamping device that horizontally holds the leading end portion of the subsequent rolled material, a processing device that cuts the bottom end portion lower surface of the preceding rolled material and the top end surface of the succeeding rolled material, and holds the processing surface in a reduced state. A reduction holding device, and a pressure welding device that compresses the processed surfaces of the preceding rolled material and the succeeding rolled material to substantially the same thickness,
The shaping device has a cutting head for cutting the plate width end portion, and a first lateral reciprocating device for reciprocating the cutting head in the plate width direction,
The post-shaping processing device is a cutter device for processing the surface of the rolled material at the plate width end of the rolled material, a second lateral reciprocating device for reciprocating the cutter device in the plate width direction, and rolling the cutter device. A vertical movement device for approaching and separating from the material surface,
The processing apparatus includes a cylindrical cutter that rotates about a first axis in the width direction of the rolled material, and a second axis in the width direction of the rolled material so as to move the cutter in an oblique direction with respect to the rolled material. A pressure welding equipment comprising: a rocking device that rocks about a center; and a reciprocating device that moves the cutter back and forth in the rolling direction.

A dolly traveling in the rolling direction;
A rear end clamping device which is mounted on the carriage and which can move up and down by horizontally holding the rear end of the rolled material;
A front end clamping device for horizontally holding the front end of the rolled material attached on the carriage, and
A processing device for cutting the rear end lower surface of the preceding rolled material and the upper end surface of the subsequent rolled material;
A reduction holding device for holding the processed surface in a reduced state;
A pressure welding apparatus that compresses the processed surfaces of the preceding rolled material and the succeeding rolled material to approximately the same thickness by overlapping them,
A shaping device for shaping the plate width end portion of the joint portion mounted on the carriage and pressure-welded by the pressure-welding device;
A post-shaping processing device that is provided on the carriage downstream of the shaping device and removes wrinkles generated on the plate surface at the plate width end by shaping by the shaping device;
The shaping device has a cutting head for cutting the plate width end portion, and a first lateral reciprocating device for reciprocating the cutting head in the plate width direction,
The post-shaping processing device is a cutter device for processing the surface of the rolled material at the plate width end of the rolled material, a second lateral reciprocating device for reciprocating the cutter device in the plate width direction, and rolling the cutter device. A vertical movement device for approaching and separating from the material surface,
The processing apparatus includes a cylindrical cutter that rotates about a first axis in the width direction of the rolled material, and a second axis in the width direction of the rolled material so as to move the cutter in an oblique direction with respect to the rolled material. A pressure welding equipment comprising: a rocking device that rocks about a center; and a reciprocating device that moves the cutter back and forth in the rolling direction.

The pressure welding equipment according to claim 1 or 2 , wherein the shaping device includes a vertical reciprocating device that reciprocates the cutting head in a rolling direction.

The shaping apparatus includes a plasma generator, pressure bonding facility according to claim 1 or 2, characterized in that the plasma irradiation from the cutting head.

The shaping apparatus includes a laser generator, pressure bonding facility according to claim 1 or 2, characterized in applying laser from the cutting head.

The shaping device, pressure bonding facility according to claim 1 or 2, characterized in that it comprises a cutter having a rotary drive to the cutting head.