JP4281862B2

JP4281862B2 - Banding material joining method and apparatus

Info

Publication number: JP4281862B2
Application number: JP2003063839A
Authority: JP
Inventors: 正彦相馬
Original assignee: Yokohama Rubber Co Ltd
Current assignee: Yokohama Rubber Co Ltd
Priority date: 2003-03-10
Filing date: 2003-03-10
Publication date: 2009-06-17
Anticipated expiration: 2023-03-10
Also published as: JP2004268457A

Description

【０００１】
【発明の属する技術分野】
この発明は、帯状材料の継合わせ方法及びその装置に係わり、更に詳しくは補強コードをゴム被覆した細幅の帯状材料をタイヤ成形幅に対応する長さに切断し、この切断した帯状材料の切断片を、成形ドラムと直結する引取コンベヤ及び搬送コンベヤ上において非切断端縁部を順次継合わせてタイヤ一本分の長さに成形する帯状材料の継合わせ方法及びその装置に関するものである。
【０００２】
【従来の技術】
従来、平行に配設した補強コードをゴム材料により被覆して成る長尺状の帯状材料を、搬送コンベヤ上で所定の長さに切断し、この切断片の非切断端縁を貼合わせ装置により互いに継ぎ合わせてタイヤ一本分の帯状材料を成形するタイヤ成形装置が知られている（例えば、特許文献１参照）。
【０００３】
【特許文献１】
特開２０００−１４１５１０号公報（第２〜３頁、図１）
【０００４】
【発明が解決しようとする課題】
然しながら、このような従来の成形装置では、切断片の非切断端縁を互いに継ぎ合わせる場合に、切断片の継ぎ合わせ部の上下面から一対の継ぎ合わせローラを圧着させながら作業を行う必要があり、従ってこの貼合わせ装置を配置するためには搬送コンベヤを２分割する必要があった。
【０００５】
しかし、搬送コンベヤを２分割すると、この分割したコンベヤ間の部分に隙間が発生し、この隙間に長手方向に剛性を持たない切断片の非切断端縁が脱落し、非切断端縁の貼合わせにトラブルを生じたり、帯状材料の継合わせを自動化させることが難しいと言う問題があった。
【０００６】
この発明はかかる従来の問題点に着目し、帯状材料から所定の長さに切断した切断片を搬送コンベヤと引取コンベヤとの接続部において確実に継合わせを行うことが出来、成形サイクルに同期して、成形ドラムに供給する帯状材料の継合わせを自動化させることが出来る帯状材料の継合わせ方法及びその装置を提供することを目的とするものである。
【０００７】
【課題を解決するための手段】
この発明は上記目的を達成するため、この発明の帯状材料の継合わせ方法は、帯状材料の供給手段から送り出された帯状材料を送りコンベヤ上においてタイヤ成形幅に対応する長さに切断し、この切断した帯状材料の切断片を、搬送手段を介して成形ドラムと直結する引取コンベヤ及び搬送コンベヤ上の所定位置に移載させながら非切断端縁部を順次貼合わせてタイヤ一本分の長さに成形する帯状材料の継合わせ方法であって、最初に切断した帯状材料の切断片を、搬送手段を介して成形ドラムと直結する引取コンベヤ上の所定位置に移載させた後、この引取コンベヤを逆転駆動させて切断片の非切断端縁部を貼合わせ位置まで後退させ、次に切断した帯状材料の第２の切断片を搬送手段を介して搬送コンベヤ上の所定位置に移載させ、この搬送コンベヤを正転駆動させて第２の切断片の非切断端縁部を貼合わせ位置まで搬送し、最初に切断した切断片と第２の切断片との非切断端縁部を貼合わせ装置により継合わせ、第３番目以降の切断片は、前記継合わせた帯状材料を引取コンベヤにより成形ドラム側に所定距離搬送すると共に、第２切断片と同様に搬送手段を介して切断片を搬送コンベヤ上の所定位置に順次移載させ、前記貼合わせ装置により切断片の非切断端縁部同士を順次継合わせてタイヤ一本分の長さまで成形することを要旨とするものである。
【０００８】
ここで、前記帯状材料とは、平行に配設した補強コードの表裏面にゴム材料を被覆したタイヤカーカス材等を使用するものである。
【０００９】
このように、最初に切断した帯状材料の切断片の非切断端縁を貼合わせ位置まで後退させ、次に切断した帯状材料の非切断端縁と突き合わせて貼合わせ装置により継合わせることで、搬送コンベヤと引取コンベヤとの隙間に切断片の非切断端縁が脱落することなく、切断した切断片を搬送コンベヤと引取コンベヤとの接続部において確実に継合わせを行うことが出来るため、継合わせ工程におけるトラブルを回避させることが出来、帯状材料の継合わせを自動化させることが可能である。
【００１０】
また、この発明の帯状材料の継合わせ装置は、平行に配設した補強コードの表裏面にゴム材料を被覆した帯状材料の供給手段とタイヤ成形ドラムとの間に、前記帯状材料を所定の長さに切断する切断装置を備えた送りコンベヤと、この送りコンベヤの搬送方向と直交する向きに、搬送コンベヤと成形ドラムに直結する正転または逆転可能な引取コンベヤとを直列に配設し、搬送コンベヤと引取コンベヤとの接続部に、帯状材料の切断片の非切断端縁部を継合わせるための貼合わせ装置を設置し、前記送りコンベヤと搬送コンベヤとの間、及び送りコンベヤと引取コンベヤとの間に、切断した帯状材料の切断片を吸着保持して移載させる搬送手段をそれぞれ設置したことを要旨とするものである。
【００１１】
ここで、前記貼合わせ装置としては、搬送コンベヤと引取コンベヤとの接続部に帯状材料の搬送方向と直交する向きに往復移動する上下一対の回転自在な引き寄せローラにより構成したものである。
【００１２】
このように、送りコンベヤと直交する向きに、搬送コンベヤと成形ドラムに直結する正転または逆転可能な引取コンベヤとを直列に配設し、更に搬送コンベヤと引取コンベヤとの接続部に、帯状材料の切断片の非切断端縁部を継合わせるための貼合わせ装置を設置し、前記送りコンベヤと搬送コンベヤとの間、及び送りコンベヤと引取コンベヤとの間に、切断した帯状材料の切断片を吸着保持して移載させる搬送手段をそれぞれ設置した構成により、切断した切断片の非切断端縁部を搬送コンベヤと引取コンベヤとの接続部において確実に継合わせを行うことが出来、成形サイクルに同期して、簡素で安価な機構により帯状材料の継合わせを自動化させることが出来るものである。
【００１３】
【発明の実施の形態】
以下、添付図面に基づき、この発明の実施形態を説明する。
【００１４】
図１は、この発明にかかる帯状材料の継合わせ方法を実施するための継合わせ装置全体の概略構成図を示し、この継合わせ装置は、帯状材料Ｗの供給手段１とタイヤの成形ドラム２との間に、前記帯状材料Ｗを所定の長さに切断する切断装置３を備えたエンドレス状のベルトから構成される送りコンベヤ４ａ，４ｂと、この送りコンベヤ４ａ，４ｂの搬送方向と直交する向きにエンドレス状のベルトから構成される搬送コンベヤ５と、成形ドラム２に直結する正転または逆転可能なエンドレス状のベルトから構成される引取コンベヤ６とを直列に配設し、これらの送りコンベヤ４ａ，４ｂ、搬送コンベヤ５、引取コンベヤ６は、制御装置７からの信号に基づき図示しないパルスモータの回転駆動により搬送速度や正転または逆転駆動が制御されるようになっている。
【００１５】
また、搬送コンベヤ５と引取コンベヤ６との接続部Ｘには、帯状材料Ｗの切断片Ｗａの非切断端縁部Ｗｘ₁，Ｗｘ₂を継合わせるための貼合わせ装置８が設置してあり、更に、前記送りコンベヤ４ｂと搬送コンベヤ５との間、及び送りコンベヤ４ｂと引取コンベヤ６との間には、切断した帯状材料Ｗの切断片Ｗａを切断状態の向きで吸着保持し、送りコンベヤ４ｂ上から引取コンベヤ６及び搬送コンベヤ５上の所定位置に移載させる二軸組合せ用の搬送手段９が支持フレーム１０を介して設置されている。
【００１６】
前記供給手段１の巻出しロール１１から巻出される帯状材料Ｗとしては、この実施形態では、平行に配設した図示しない補強コードの表裏面にゴム材料を被覆した長尺状のタイヤ用のカーカス材料であるが、他の帯状材料を使用することも可能であり、巻出しロール１１に巻付けられている帯状材料Ｗは、フェスツーナ等の張力調整装置１２を介して帯状材料Ｗが前記送りコンベヤ４ａ上に所定の張力を保持した状態で送り出されるように構成されている。
【００１７】
前記送りコンベヤ４ａ，４ｂ間に設置される切断装置３は、図２〜図４に示すように、モータ１３により回転駆動される丸刃１４が送りコンベヤ４ａ，４ｂ間の幅方向に設置された切断ガイド１５に沿って走行し、送りコンベヤ４ａ上を搬送されて来た帯状材料Ｗを押え手段１６により押さえた状態で所定の長さに切断するものである。
【００１８】
次に、前記搬送コンベヤ５と引取コンベヤ６との接続部Ｘに設置した貼合わせ装置８は、図１及び図５，図６に示すように、搬送方向と直交する向きにガイド部材１７に沿って往復移動する上下一対の回転自在な２個の引き寄せローラ１８ａ，１８ｂと、切断片Ｗａの非切断端縁部Ｗｘ₁，Ｗｘ₂の近傍を押さえる押さえ装置１９ａ，１９ｂとにより構成され、上下一対の引き寄せローラ１８ａ，１８ｂは、円錐台状に形成されて非切断端縁部Ｗｘ₁，Ｗｘ₂の継合わせ中心に向かって傾斜して取付けられている。
【００１９】
この上下一対の引き寄せローラ１８ａ，１８ｂは、シリンダー等の昇降装置２０により昇降し、切断片Ｗａの非切断端縁部Ｗｘ₁，Ｗｘ₂を上下から挟み込んで互いに圧着させながらガイド部材１７に沿って走行するもので、ガイド部材１７の下方には、引き寄せローラ１８ａ，１８ｂをガイドレール１７ａに沿って走行させるための駆動モータＭ及び駆動チェーンＳから成る駆動手段２１が設けられている。
【００２０】
また前記押さえ装置１９ａ，１９ｂは、支持ブラケット２２に鉛直向きに取付けられた押さえシリンダー２３ａ，２３ｂのロッドの先端に取付けられ、前後の非切断端縁部Ｗｘ₁，Ｗｘ₂の近傍をガイド部材１７上に押し付けて固定し、この状態で前記引き寄せローラ１８ａ，１８ｂにより非切断端縁部Ｗｘ₁，Ｗｘ₂を引き寄せながら貼合わせて圧着させるものである。
【００２１】
また、前記送りコンベヤ４ｂと搬送コンベヤ５との間に設置された二軸組合せ用の搬送手段９は、送りコンベヤ４ａ，４ｂと平行に立設された支持フレーム１０にガイドレール２４を備えたガイドフレーム２５ａ，２５ｂが取付けられ、このガイドフレーム２５ａ，２５ｂのガイドレール２４には、送りコンベヤ４ａ，４ｂの搬送方向と平行に往復移動する走行フレーム２６が架設されている。
【００２２】
この走行フレーム２６は、前記ガイドフレーム２５ａ，２５ｂに組み込まれた図示しないロッドレスシリンダーにより往復移動し、また走行フレーム２６に敷設されたガイドレール２７には、バキューム手段２８が図示しないロッドレスシリンダーを介して移動可能に吊設されている。
【００２３】
このバキューム手段２８は、前記走行フレーム２６のガイドレール２７に昇降シリンダー２９を介して支持プレート３０が水平に吊設され、この支持プレート３０の底面の数箇所には、シリンダー３１を介して昇降するバキュームパッド３２が取付けられている。
【００２４】
従って、上記バキューム手段２８は、走行フレーム２６により送りコンベヤ４ａ，４ｂの搬送方向と平行に移動可能で、かつ走行フレーム２６のガイドレール２７に沿って引取コンベヤ６及び搬送コンベヤ５の搬送方向と平行に移動することが可能であり、前記切断装置３により定尺切断された切断片Ｗａを送りコンベヤ４ｂ上から吸着保持して、引取コンベヤ６及び搬送コンベヤ５の所定位置まで搬送して移載させることが可能である。
【００２５】
次に、上記のような構成から成る帯状材料Ｗの継合わせ装置による継合わせ方法を、図１及び図９を参照しながらについて説明する。
【００２６】
帯状材料Ｗの継合わせ装置による継合わせ方法の第１実施形態としては、最初に切断された帯状材料Ｗの切断片Ｗａの搬送経路を変えたもので、この実施形態では、最初に切断された帯状材料Ｗの切断片Ｗａは、送りコンベヤ４ｂ上のＡ２の位置から図９の(1) に待機する二軸組合せ用の搬送手段９のバキューム手段２８が下降してバキュームパッド３２により吸着保持すると共に上昇し、この状態で走行フレーム２６は、その位置で停止し、搬送手段９のバキューム手段２８が走行フレーム２６のガイドレール２７に沿って引取コンベヤ６の移載位置ラインＹ−Ｙ上の図９の(4) の位置まで移動する。
【００２７】
次いで、走行フレーム２６は、ガイドフレーム２５ａ，２５ｂに沿って引取コンベヤ６のセンター位置Ｚ−Ｚにおける貼合わせ装置８の近傍位置、即ち、図９の(3) 位置まで移動して、バキュームパッド３２により吸着保持されていた最初に切断された帯状材料Ｗの切断片Ｗａを引取コンベヤ６のＢ１位置の図９の(3) に移載する。
【００２８】
引取コンベヤ６の図９の(3) 位置に切断片Ｗａが移載され、切断片Ｗａを開放すると、引取コンベヤ６は制御装置７からの出力信号によりパルスモータを介して逆転駆動し、切断片Ｗａの非切断端縁部Ｗｘ₁を搬送コンベヤ５と引取コンベヤ６との接続部Ｘにおける貼合わせ位置まで後退移動させる。
【００２９】
次に、切断片Ｗａを開放した搬送手段９のバキューム手段２８は、走行フレーム２６がガイドフレーム２５ａ，２５ｂに沿って引取コンベヤ６の移載位置ラインＹ−Ｙ上の図９の(4) の位置まで後退移動した後、走行フレーム２６のガイドレール２７に沿って送りコンベヤ４ｂ上の図９の(1) に待機位置に戻る。
【００３０】
そして、帯状材料Ｗから切断された第２の切断片Ｗａについては、上記第１実施形態と同様に、送りコンベヤ４ｂから図９の(1) に待機する二軸組合せ用の搬送手段９のバキューム手段２８が下降してバキュームパッド３２により吸着保持すると共に上昇し、この状態で走行フレーム２６は、ガイドフレーム２５ａ，２５ｂに沿って引取コンベヤ６及び搬送コンベヤ５のセンター位置Ｚ−Ｚの(2) の位置まで移動し、バキュームパッド３２により吸着保持されていた第２の切断片Ｗａをそのままの向きで搬送コンベヤ５のセンター位置Ｚ−Ｚに載置させる。
【００３１】
第２の切断片Ｗａが搬送コンベヤ５のセンター位置Ｚ−Ｚの(2) 位置に移載されると、搬送コンベヤ５は制御装置７からの出力信号によりパルスモータを介して正転駆動により、切断片Ｗａの非切断端縁部Ｗｘを搬送コンベヤ５のＣ２上、即ち、引取コンベヤ６との接続部Ｘにおける貼合わせ位置まで移動させる。
【００３２】
そして、最初に切断した切断片Ｗａの非切断端縁部Ｗｘ₁と、第２の切断片Ｗａの非切断端縁部Ｗｘ₂とが接続部Ｘにおいて突き合わされた後、貼合わせ装置８の上下一対の回転自在な２個の引き寄せローラ１８ａ，１８ｂにより非切断端縁部Ｗｘ₁，Ｗｘ₂を引き寄せながら貼合わせて圧着させるものである。
【００３３】
このようにして、最初に切断した切断片Ｗａの非切断端縁部Ｗｘ₁と、第２の切断片Ｗａの非切断端縁部Ｗｘ₂とが貼合わされたら、引取コンベヤ６をパルスモータを介して正転駆動し、第２の切断片Ｗａの先ほど接続した非切断端縁部Ｗｘ₂と反対側の非切断端縁部Ｗｘ₁の端末部が搬送コンベヤ５と引取コンベヤ６との接続部Ｘにおける貼合わせ位置まで移動させる。
【００３４】
そして、第３以降の切断片Ｗａは、上記第１実施形態と同様の操作により順次搬送させて継合わせることでタイヤ一本分の長さまで成形し、その後は引取コンベヤ６のＢ２位置からタイヤ成形ドラム２上に供給してタイヤの成形を行うものである。
【００３５】
このように、送りコンベヤ４ａ，４ｂと直交する向きに、搬送コンベヤ５とタイヤ成形ドラム２に直結する正転または逆転可能な引取コンベヤ６とを直列に配設し、更に搬送コンベヤ５と引取コンベヤ６との接続部Ｘに、帯状材料Ｗの切断片Ｗａの非切断端縁部Ｗｘ_1,Ｗｘ₂を継合わせるための貼合わせ装置８を設置し、更に前記送りコンベヤ４ｂと搬送コンベヤ５との間、及び送りコンベヤ４ｂと引取コンベヤ６との間に、切断した帯状材料Ｗの切断片Ｗａを吸着保持して移載させる搬送手段９，１０をそれぞれ設置した構成により、切断した切断片Ｗａの非切断端縁部Ｗｘ_1,Ｗｘ₂を搬送コンベヤ５と引取コンベヤ６との接続部Ｘにおいて確実に継合わせを行うことが出来るものである。
【００３６】
次に、帯状材料Ｗの継合わせ装置による継合わせ方法の第２実施形態としては、先ず供給手段１の巻出しロール１１から巻出された帯状材料Ｗの幅は、タイヤ一本分の長さ（成形ドラム２の周長）の１／ｎの幅に切断されたものであり、この帯状材料Ｗをｎ枚接続させることによりタイヤ一本の長さに形成するものである。
【００３７】
即ち、巻出しロール１１から巻出された帯状材料Ｗは、図１に示す張力調整装置１２を介して送りコンベヤ４ａのＡ１上に送り出され、送りコンベヤ４ａ，４ｂの回転駆動により送りコンベヤ４ｂ上に１回でタイヤ成形幅Ｈだけ乗るように搬送され、その後に切断する。
【００３８】
切断位置から切断幅（タイヤ成形幅Ｈ）分だけ出た帯状材料Ｗは、押え手段１６により切断時に帯状材料Ｗが移動しないように押えられた状態で、切断装置３によりタイヤ成形幅Ｈの長さに切断される。切断された帯状材料Ｗの切断片Ｗａは、送りコンベヤ４ｂによってＡ２上の所定位置まで搬送される。
【００３９】
そして、最初に切断された帯状材料Ｗの切断片Ｗａは、図１における送りコンベヤ４ｂ上のＡ２の位置から図９の(1) に待機する二軸組合せ用の搬送手段９のバキューム手段２８が下降し、バキュームパッド３２により吸着保持すると共に上昇し、この状態で走行フレーム２６は、ガイドフレーム２５ａ，２５ｂに沿って引取コンベヤ６及び搬送コンベヤ５のセンター位置Ｚ−Ｚの(2) の位置まで移動し、バキュームパッド３２により吸着保持されていた切断片Ｗａをそのままの向きで搬送コンベヤ５のセンター位置Ｚ−Ｚに載置させる。
【００４０】
なお、この実施形態は、継合わせ方法において、最初に切断した切断片Ｗａの非切断端縁部Ｗｘ₁と、第２の切断片Ｗａの非切断端縁部Ｗｘ₂とが逆になり、最初に切断した切断片Ｗａの非切断端縁部Ｗｘ₂、第２の切断片Ｗａの非切断端縁部Ｗｘ₁となる。
【００４１】
次に、上記と同様にして帯状材料Ｗから切断された第２の切断片Ｗａは、前記搬送コンベヤ５のセンター位置Ｚ−Ｚから図９の(1) に戻った搬送手段９のバキューム手段２８が送りコンベヤ４ｂからバキューム手段２８が下降してバキュームパッド３２により吸着保持され、バキューム手段２８が上昇後、走行フレーム２６のガイドレール２７に沿って図９の(4) の位置まで移動し、走行フレーム２６は引取コンベヤ６の貼合わせ装置８の近傍位置、即ち、図９の(3) 位置まで移動して図１に示す引取コンベヤ６のＢ１位置に第２の切断片Ｗａを移載する。
【００４２】
引取コンベヤ６の(3) 位置に切断片Ｗａが移載されると、引取コンベヤ６は制御装置７からの出力信号によりパルスモータを介して逆転駆動し、切断片Ｗａの非切断端縁部Ｗｘ₂を搬送コンベヤ５と引取コンベヤ６との接続部Ｘにおける貼合わせ位置まで後退移動させる。
【００４３】
この状態で、搬送コンベヤ５は制御装置７からの出力信号によりパルスモータを介して正転駆動により、最初の切断片Ｗａの非切断端縁部Ｗｘ₁を搬送コンベヤ５のＣ２上、即ち、引取コンベヤ６との接続部Ｘにおける貼合わせ位置まで移動させる。そして、最初に切断した切断片Ｗａの非切断端縁部Ｗｘ₁と、第２の切断片Ｗａの非切断端縁部Ｗｘ₂とが接続部Ｘにおいて突き合わされた後、切断片Ｗａの非切断端縁部Ｗｘ₁，Ｗｘ₂の近傍をそれぞれ押さえ装置１９ａ，１９ｂにより動かないように押圧する。
【００４４】
このような状態から貼合わせ装置８の上下一対の回転自在な２個の引き寄せローラ１８ａ，１８ｂが搬送方向と直交する向きに配設されたガイド部材１７に沿って移動すると共に、上下一対の回転自在な２個の引き寄せローラ１８ａ，１８ｂにより非切断端縁部Ｗｘ₁，Ｗｘ₂を引き寄せながら貼合わせて圧着させる。
【００４５】
このようにして、最初に切断した切断片Ｗａの非切断端縁部Ｗｘ₁と、第２の切断片Ｗａの非切断端縁部Ｗｘ₂とが貼合わされ、継合わされら、引取コンベヤ６をパルスモータを介して正転駆動し、第２の切断片Ｗａの非切断端縁部Ｗｘ₂の端末部が搬送コンベヤ５と引取コンベヤ６との接続部Ｘにおける貼合わせ位置まで移動させる。
【００４６】
そして第３番目以降の切断片Ｗａは、第１の切断片Ｗａと同様に、送りコンベヤ４ｂのＡ２の(1) 位置から二軸組合せ用の搬送手段９のバキューム手段２８が下降してバキュームパッド３２により吸着保持すると共に上昇し、この状態で走行フレーム２６は、ガイドフレーム２５ａ，２５ｂに沿って引取コンベヤ６及び搬送コンベヤ５のセンター位置Ｚ−Ｚの(2) の位置まで移動し、バキュームパッド３２により吸着保持されていた第３の切断片Ｗａをそのままの向きで搬送コンベヤ５のセンター位置Ｚ−Ｚに載置させ、更に搬送コンベヤ５を正転駆動させて第３の切断片Ｗａの非切断端縁部Ｗｘ₂の端末部が搬送コンベヤ５と引取コンベヤ６との接続部Ｘにおける貼合わせ位置まで移動させる。
【００４７】
この後は、上記と同様に貼合わせ装置８により最初の切断片Ｗａの非切断端縁部Ｗｘ₁と第３の切断片Ｗａの非切断端縁部Ｗｘ₂の端末部とが貼合わされる。
【００４８】
このような操作を繰返し行い、切断片Ｗａの非切断端縁部Ｗｘ₁，Ｗｘ₂を順次継合わせてタイヤ一本分の長さまで成形した後は、引取コンベヤ６のＢ２位置からタイヤ成形ドラム２上に供給してタイヤの成形を行うものである。
【００４９】
以上のように、供給手段１の巻出しロール１１から巻出されたタイヤ一本分の長さ（成形ドラム２の周長）の１／ｎの幅に形成された帯状材料Ｗをタイヤ成形幅Ｈに切断し、この帯状材料Ｗをｎ枚接続させることによりタイヤ一本の長さに形成するもので、切断枚数ｎ枚は、タイヤユニフォミティーを考慮した場合、素数枚切断して継合わせるのが好ましい。
【００５０】
【発明の効果】
この発明は、上記のように最初に切断した帯状材料の切断片を、搬送手段を介して成形ドラムと直結する引取コンベヤ上の所定位置に移載させた後、この引取コンベヤを逆転駆動させて切断片の非切断端縁部を貼合わせ位置まで後退させ、次に切断した帯状材料の第２の切断片を搬送手段を介して搬送コンベヤ上の所定位置に移載させ、この搬送コンベヤを正転駆動させて第２の切断片の非切断端縁部を貼合わせ位置まで搬送し、最初に切断した切断片と第２の切断片との非切断端縁部を貼合わせ装置により継合わせ、第３番目以降の切断片は、前記継合わせた帯状材料を引取コンベヤにより成形ドラム側に所定距離搬送すると共に、第２切断片と同様に搬送手段を介して切断片を搬送コンベヤ上の所定位置に順次移載させ、前記貼合わせ装置により切断片の非切断端縁部同士を順次継合わせてタイヤ一本分の長さまで成形するので、搬送コンベヤと引取コンベヤとの隙間に切断片の非切断端縁が脱落することなく、切断した切断片を搬送コンベヤと引取コンベヤとの接続部において確実に継合わせを行うことが出来、帯状材料の継合わせを自動化させることが出来る。
【００５１】
また、この発明の帯状材料の継合わせ装置は、平行に配設した補強コードの表裏面にゴム材料を被覆した帯状材料の供給手段とタイヤ成形ドラムとの間に、前記帯状材料を所定の長さに切断する切断装置を備えた送りコンベヤと、この送りコンベヤの搬送方向と直交する向きに、搬送コンベヤと成形ドラムに直結する正転または逆転可能な引取コンベヤとを直列に配設し、搬送コンベヤと引取コンベヤとの接続部に、帯状材料の切断片の非切断端縁部を継合わせるための貼合わせ装置を設置し、前記送りコンベヤと搬送コンベヤとの間、及び送りコンベヤと引取コンベヤとの間に、切断した帯状材料の切断片を吸着保持して移載させる搬送手段をそれぞれ設置したので、切断した切断片の非切断端縁部を搬送コンベヤと引取コンベヤとの接続部において確実に継合わせを行うことが出来、成形サイクルに同期して、簡素な安価な機構により帯状材料の継合わせを自動化させることが出来る効果がある。
【図面の簡単な説明】
【図１】この発明にかかる帯状材料の継合わせ方法を実施するための継合わせ装置全体の概略構成図である。
【図２】送りコンベヤと切断した帯状材料の切断片を吸着保持して移載させる搬送手段との一部拡大正面図である。
【図３】図２の平面図である。
【図４】切断装置の一部拡大側面図である。
【図５】貼合わせ装置の一部拡大側面図である。
【図６】図５の貼合わせ装置の概略側面図である。
【図７】搬送手段のバキューム手段の一部拡大正面図である。
【図８】バキューム手段の要部拡大正面図である。
【図９】帯状材料の切断片の搬送経路を示す説明図である。
【符号の説明】
１帯状材料の供給手段２成形ドラム
３切断装置４ａ，４ｂ送りコンベヤ
５搬送コンベヤ６引取コンベヤ
７制御装置８貼合わせ装置
９二軸組合せ用の搬送手段１０支持フレーム
１１巻出しロール１２張力調整装置
１３モータ１４丸刃
１５切断ガイド１６押え手段
１７ガイド部材１７ａガイドレール
Ｍ駆動モータＳ駆動チェーンＳ
１８ａ，１８ｂ引き寄せローラ
１９ａ，１９ｂ押さえ装置２０昇降装置
２１駆動手段２２支持ブラケット
２３ａ，２３ｂ押さえシリンダー２４ガイドレール
２５ａ，２５ｂガイドフレーム
２６走行フレーム２７ガイドレール
２８バキューム手段２９昇降シリンダー
３０支持プレート３１シリンダー
３２バキュームパッドＷ帯状材料
Ｗａ切断片Ｗｘ_1,Ｗｘ₂非切断端縁部
Ｘ接続部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a band material joining method and apparatus, and more specifically, a narrow band material having a reinforcing cord covered with rubber is cut into a length corresponding to a tire molding width, and the cut band material is cut. The present invention relates to a strip-like material joining method and apparatus for forming pieces into a length corresponding to one tire by successively joining non-cut end edges on a take-up conveyor and a transport conveyor directly connected to a forming drum.
[0002]
[Prior art]
Conventionally, a long band-shaped material formed by coating reinforcing cords arranged in parallel with a rubber material is cut into a predetermined length on a conveyor, and the non-cut edge of the cut piece is bonded by a laminating device. There is known a tire forming apparatus that forms a belt-shaped material for one tire by joining them together (see, for example, Patent Document 1).
[0003]
[Patent Document 1]
Japanese Unexamined Patent Publication No. 2000-141510 (pages 2 and 3, FIG. 1)
[0004]
[Problems to be solved by the invention]
However, in such a conventional molding apparatus, when the non-cut edges of the cut pieces are spliced together, it is necessary to perform the work while pressing the pair of splicing rollers from the upper and lower surfaces of the spliced portion of the cut pieces. Therefore, in order to arrange this laminating apparatus, it was necessary to divide the conveyor into two parts.
[0005]
However, when the conveyor is divided into two, a gap is generated between the divided conveyors, and the non-cutting edge of the cut piece that does not have rigidity in the longitudinal direction falls off in this gap, and the non-cutting edge is bonded. There are problems that it is difficult to automate the joining of belt-like materials.
[0006]
The present invention pays attention to such a conventional problem, and can cut pieces cut from a strip-like material to a predetermined length reliably at the connecting portion between the conveyor and the take-up conveyor, and is synchronized with the molding cycle. Thus, it is an object of the present invention to provide a method and an apparatus for joining belt-shaped materials that can automate the joining of the belt-shaped materials supplied to the forming drum.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, according to the present invention, a band material joining method according to the present invention cuts a band material fed from a belt material supply means into a length corresponding to a tire forming width on a feed conveyor. The cut piece of the strip-shaped material is transferred to a predetermined position on the take-up conveyor and the transfer conveyor, which are directly connected to the forming drum via the transfer means, and the non-cut end edges are sequentially bonded to each other to obtain the length of one tire. A method for joining band-shaped materials to be molded into a workpiece, wherein a first cut piece of the band-shaped material is transferred to a predetermined position on a take-up conveyor directly connected to a forming drum via a conveying means, and then the take-up conveyor To reversely drive the non-cut edge of the cut piece to the bonding position, and then transfer the second cut piece of the strip-shaped material cut to a predetermined position on the transfer conveyor via the transfer means, this The feed conveyor is driven to rotate forward to convey the non-cut end edge portion of the second cut piece to the bonding position, and the non-cut end edge portion of the first cut piece and the second cut piece is bonded. The third and subsequent cut pieces convey the joined strip-like material to the forming drum side by a take-up conveyor for a predetermined distance, and convey the cut pieces via the conveying means in the same manner as the second cut pieces. is sequentially transferred to a predetermined position of the upper, it is an gist be molded to fit sequentially joining the uncut edges the Judges of cut pieces to a length of one minute tire by the laminating device.
[0008]
Here, the belt-like material uses a tire carcass material or the like in which a rubber material is coated on the front and back surfaces of reinforcing cords arranged in parallel.
[0009]
In this way, the non-cut edge of the first cut piece of the strip-shaped material is retracted to the bonding position, and then the non-cut edge of the cut strip-shaped material is brought into contact with the bonding device, and then conveyed Since the non-cut edge of the cut piece does not drop into the gap between the conveyor and the take-up conveyor, the cut piece can be reliably joined at the connection between the transport conveyor and the take-up conveyor. It is possible to avoid troubles in the process, and it is possible to automate the joining of the strip materials.
[0010]
In the belt material joining device of the present invention, the belt-shaped material is placed between the front and back surfaces of the reinforcing cords arranged in parallel with the rubber material and the tire molding drum between the belt material and the tire molding drum. A feed conveyor equipped with a cutting device that cuts into a length and a transfer conveyor and a take-up conveyor that can be rotated in a normal or reverse direction directly connected to the forming drum are arranged in series in a direction perpendicular to the transport direction of the feed conveyor. At the connection between the conveyor and the take-up conveyor, a laminating device is installed for joining the non-cut edges of the strips of the strip-shaped material, and between the feed conveyor and the transport conveyor, and between the feed conveyor and the take-up conveyor, The gist of the present invention is that a conveying means for adsorbing, holding, and transferring the cut pieces of the strip-shaped material cut between them is installed.
[0011]
Here, the laminating apparatus is constituted by a pair of upper and lower rotatable pulling rollers that reciprocate in a direction orthogonal to the conveying direction of the belt-like material at the connection portion between the conveying conveyor and the take-up conveyor.
[0012]
In this way, the conveying conveyor and the take-up conveyor that can be rotated in the normal or reverse direction directly connected to the forming drum are arranged in series in a direction orthogonal to the feed conveyor, and a strip-shaped material is further connected to the connection portion between the conveying conveyor and the take-up conveyor. A laminating device is installed to join the non-cutting edges of the cut pieces of the material, and the cut pieces of the strip-shaped material cut between the feed conveyor and the transport conveyor and between the feed conveyor and the take-up conveyor. Conveying means for holding and transferring by suction are installed, so that the uncut end edge of the cut piece can be reliably joined at the connecting part between the conveyor and take-up conveyor. Synchronously, the joining of the strip materials can be automated by a simple and inexpensive mechanism.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the accompanying drawings.
[0014]
FIG. 1 shows a schematic configuration diagram of the entire joining device for carrying out the joining method of the strip material according to the present invention. The joining device comprises a feeding means 1 for the strip material W, a tire forming drum 2 and the like. Between the feed conveyors 4a and 4b composed of an endless belt provided with a cutting device 3 for cutting the belt-like material W into a predetermined length, and a direction perpendicular to the conveying direction of the feed conveyors 4a and 4b A transport conveyor 5 composed of an endless belt and a take-up conveyor 6 composed of an endless belt capable of rotating forward or reversely directly connected to the forming drum 2 are arranged in series, and these feed conveyors 4a , 4b, the conveyor 5 and the take-up conveyor 6 are controlled in terms of conveyance speed, forward rotation or reverse rotation by rotation of a pulse motor (not shown) based on a signal from the control device 7. It has become to so that.
[0015]
In addition, a bonding device 8 for joining the non-cut edge portions Wx ₁ and Wx ₂ of the cut piece Wa of the strip-shaped material W is installed at the connection portion X between the transport conveyor 5 and the take-up conveyor 6, Further, between the feed conveyor 4b and the transfer conveyor 5 and between the feed conveyor 4b and the take-up conveyor 6, the cut pieces Wa of the strip-like material W are sucked and held in the cut state, and the feed conveyor 4b A biaxial combination conveying means 9 is installed via a support frame 10 to be transferred from a top to a predetermined position on the take-up conveyor 6 and the conveying conveyor 5.
[0016]
In this embodiment, the belt-like material W to be unwound from the unwinding roll 11 of the supply means 1 is a carcass for a long tire in which a rubber material is coated on the front and back surfaces of reinforcing cords (not shown) arranged in parallel. Although it is a material, it is also possible to use other belt-like materials, and the belt-like material W wound around the unwinding roll 11 is fed to the feed conveyor via a tension adjusting device 12 such as a festooner. It is configured to be sent out while maintaining a predetermined tension on 4a.
[0017]
As shown in FIGS. 2 to 4, the cutting device 3 installed between the feed conveyors 4 a and 4 b has a round blade 14 rotated by a motor 13 installed in the width direction between the feed conveyors 4 a and 4 b. The belt travels along the cutting guide 15 and is cut into a predetermined length while the belt-like material W conveyed on the feed conveyor 4 a is pressed by the pressing means 16.
[0018]
Next, as shown in FIGS. 1, 5, and 6, the laminating device 8 installed at the connection portion X between the transport conveyor 5 and the take-up conveyor 6 follows the guide member 17 in a direction orthogonal to the transport direction. two attracted rollers 18a freely pair of upper and lower rotating that reciprocates Te, and 18b, the non-cutting edges Wx _1, press the vicinity of Wx ₂ hold-down device 19a of the cut piece Wa, is composed of a 19b, upper and lower pairs of attraction roller 18a, 18b are mounted to be inclined towards the seaming center is formed in a truncated cone shape uncut edges Wx _1, Wx _2.
[0019]
The upper and lower pair of drawn roller 18a, 18b is moved vertically by a lifting device 20 such as a cylinder, along the guide member 17 while crimp each other sandwiching the non-cutting edges Wx _1, Wx ₂ of cut pieces Wa from the upper and lower A drive means 21 including a drive motor M and a drive chain S for running the drawing rollers 18a and 18b along the guide rail 17a is provided below the guide member 17.
[0020]
The holding devices 19a and 19b are attached to the tips of rods of holding cylinders 23a and 23b attached to the support bracket 22 in the vertical direction, and guide members 17 are provided in the vicinity of the front and rear uncut edge portions Wx ₁ and Wx _2. In this state, the non-cut end edge portions Wx ₁ and Wx ₂ are stuck and pressed together while being pulled and pressed together.
[0021]
Further, the transport means 9 for the two-axis combination installed between the feed conveyor 4b and the transport conveyor 5 is a guide provided with a guide rail 24 on a support frame 10 standing in parallel with the feed conveyors 4a and 4b. Frames 25a and 25b are attached to the guide rails 24 of the guide frames 25a and 25b. A travel frame 26 that reciprocates in parallel with the conveying direction of the feed conveyors 4a and 4b is installed.
[0022]
The traveling frame 26 is reciprocated by a rodless cylinder (not shown) incorporated in the guide frames 25a and 25b, and the vacuum means 28 has a rodless cylinder (not shown) attached to a guide rail 27 laid on the traveling frame 26. It is suspended so that movement is possible.
[0023]
In the vacuum means 28, a support plate 30 is horizontally suspended from a guide rail 27 of the traveling frame 26 via an elevating cylinder 29, and is lifted and lowered via a cylinder 31 at several locations on the bottom surface of the support plate 30. A vacuum pad 32 is attached.
[0024]
Accordingly, the vacuum means 28 can be moved by the traveling frame 26 in parallel with the conveying direction of the feed conveyors 4a and 4b, and parallel to the conveying direction of the take-up conveyor 6 and the conveying conveyor 5 along the guide rail 27 of the traveling frame 26. The cutting piece Wa cut by the cutting device 3 is sucked and held from above the feed conveyor 4b, and transported to a predetermined position of the take-up conveyor 6 and the transport conveyor 5 to be transferred. It is possible.
[0025]
Next, a joining method using the joining device for the strip-shaped material W having the above-described configuration will be described with reference to FIGS. 1 and 9.
[0026]
As a first embodiment of the joining method by the joining device of the strip-shaped material W, the transport path of the cut piece Wa of the strip-shaped material W cut first is changed. In this embodiment, the first cut is performed first. The cut piece Wa of the belt-like material W is sucked and held by the vacuum pad 32 by the vacuum means 28 of the transport means 9 for biaxial combination waiting in (1) of FIG. 9 from the position A2 on the feed conveyor 4b. In this state, the traveling frame 26 stops at that position, and the vacuum means 28 of the transport means 9 is shown along the guide rail 27 of the traveling frame 26 on the transfer position line YY of the take-up conveyor 6. Move to position 9 (4).
[0027]
Next, the traveling frame 26 moves along the guide frames 25a and 25b to the position near the laminating device 8 at the center position ZZ of the take-up conveyor 6, that is, the position (3) in FIG. The cut piece Wa of the band-shaped material W that has been cut and held first by the transfer is transferred to (3) in FIG.
[0028]
When the cut piece Wa is transferred to the position (3) in FIG. 9 of the take-up conveyor 6 and the cut piece Wa is opened, the take-up conveyor 6 is driven in reverse via a pulse motor by an output signal from the control device 7, and the cut piece The non-cut edge Wx ₁ of Wa is moved backward to the bonding position at the connection portion X between the conveyor 5 and the take-up conveyor 6.
[0029]
Next, the vacuum means 28 of the conveying means 9 with the cut piece Wa opened is shown in (4) of FIG. 9 on the transfer position line YY of the take-up conveyor 6 along the guide frames 25a and 25b. After retreating to the position, it returns to the standby position in FIG. 9 (1) on the feed conveyor 4b along the guide rail 27 of the traveling frame 26.
[0030]
And about the 2nd cut piece Wa cut | disconnected from the strip | belt-shaped material W, similarly to the said 1st Embodiment, the vacuum of the conveyance means 9 for the biaxial combination which waits in (1) of FIG. 9 from the feed conveyor 4b The means 28 descends and is sucked and held by the vacuum pad 32 and rises. In this state, the traveling frame 26 moves along the guide frames 25a and 25b at the center position ZZ of the take-up conveyor 6 and the transport conveyor 5 (2). The second cut piece Wa held by suction by the vacuum pad 32 is placed in the center position ZZ of the conveyor 5 in the same direction.
[0031]
When the second cut piece Wa is transferred to the position (2) of the center position ZZ of the transport conveyor 5, the transport conveyor 5 is driven forward by a forward rotation via a pulse motor by an output signal from the control device 7. The non-cut edge Wx of the cut piece Wa is moved to C2 of the conveyor 5, that is, to the bonding position at the connection portion X with the take-up conveyor 6.
[0032]
Then, the non-cutting edges Wx ₁ of the cut piece Wa that cut first, after which the non-cutting edge portion Wx ₂ of the second cut piece Wa is butted at connection X, the upper and lower laminating device 8 The non-cut end edge portions Wx ₁ and Wx ₂ are bonded and pressed together while being pulled by a pair of two rotatable pulling rollers 18 a and 18 b.
[0033]
In this way, when the non-cut end edge Wx ₁ of the first cut piece Wa and the non-cut end edge Wx _{2 of} the second cut piece Wa are bonded together, the take-up conveyor 6 is moved via a pulse motor. The end portion of the non-cut end edge portion Wx ₁ opposite to the non-cut end edge portion Wx ₂ connected in the forward direction to the second cut piece Wa is connected to the connection portion X between the transport conveyor 5 and the take-up conveyor 6. Move to the pasting position.
[0034]
Then, the third and subsequent cut pieces Wa are formed to the length of one tire by being sequentially conveyed and joined by the same operation as in the first embodiment, and thereafter the tire is formed from the position B2 of the take-up conveyor 6. A tire is molded by supplying it onto the drum 2.
[0035]
In this way, the conveyor 5 and the take-up conveyor 6 that can be rotated in the normal or reverse direction directly connected to the tire forming drum 2 are arranged in series in a direction orthogonal to the feed conveyors 4a, 4b, and further, the conveyor 5 and the take-up conveyor. the connection part X between 6 established a laminating device 8 for splicing the non-cutting edges Wx _1, Wx ₂ cut piece Wa of the strip material W, further the conveyor 5 and the feed conveyor 4b In between the feed conveyor 4b and the take-up conveyor 6, the conveying means 9 and 10 for transferring and holding the cut pieces Wa of the cut strip-shaped material W by suction are installed respectively. it is intended that can reliably perform seaming at connection X of the non-cutting edges Wx _1, Wx ₂ and conveyor 5 and the take-off conveyor 6.
[0036]
Next, as a second embodiment of the joining method by the joining device for the strip material W, first, the width of the strip material W unwound from the unwinding roll 11 of the supply means 1 is the length of one tire. It is cut to a width of 1 / n of (peripheral length of the forming drum 2), and is formed to have a length of one tire by connecting n pieces of the belt-like material W.
[0037]
That is, the strip-shaped material W unwound from the unwinding roll 11 is fed onto A1 of the feed conveyor 4a via the tension adjusting device 12 shown in FIG. 1, and on the feed conveyor 4b by rotational driving of the feed conveyors 4a and 4b. Is transported so as to ride the tire forming width H at a time, and then cut.
[0038]
The strip-shaped material W that has been cut out from the cutting position by the cutting width (tire molding width H) is pressed by the presser 16 so that the strip-shaped material W does not move during cutting. It will be severed. The cut piece Wa of the cut strip-shaped material W is conveyed to a predetermined position on A2 by the feed conveyor 4b.
[0039]
Then, the cut piece Wa of the strip-shaped material W that has been cut first is obtained by the vacuum means 28 of the conveying means 9 for the biaxial combination waiting in (1) of FIG. 9 from the position A2 on the feed conveyor 4b in FIG. The traveling frame 26 moves down to the position (2) of the center position ZZ of the take-up conveyor 6 and the transport conveyor 5 along the guide frames 25a and 25b. The cut piece Wa that has been moved and sucked and held by the vacuum pad 32 is placed at the center position ZZ of the conveyor 5 in the same direction.
[0040]
In this embodiment, in the joining method, the non-cut end edge Wx ₁ of the first cut piece Wa and the non-cut end edge Wx _{2 of} the second cut piece Wa are reversed. The non-cut end edge portion Wx ₂ of the cut piece Wa cut into _two and the non-cut end edge portion Wx _{1 of} the second cut piece Wa are obtained.
[0041]
Next, the second cut piece Wa cut from the belt-like material W in the same manner as described above is the vacuum means 28 of the transport means 9 returned from the center position ZZ of the transport conveyor 5 to (1) in FIG. The vacuum means 28 descends from the feed conveyor 4b and is sucked and held by the vacuum pad 32. After the vacuum means 28 rises, it moves along the guide rail 27 of the traveling frame 26 to the position (4) in FIG. The frame 26 moves to the position near the laminating device 8 of the take-up conveyor 6, that is, the position (3) in FIG. 9, and transfers the second cut piece Wa to the position B1 of the take-up conveyor 6 shown in FIG.
[0042]
When the cut piece Wa is transferred to the position (3) of the take-up conveyor 6, the take-up conveyor 6 is driven in reverse via a pulse motor by an output signal from the control device 7, and the non-cut edge Wx of the cut piece Wa. ₂ is moved backward to the bonding position at the connection X between the conveyor 5 and the take-up conveyor 6.
[0043]
In this state, the forward rotation driven through the pulse motor by the output signal from the conveyor 5 the control device 7, the non-cutting edges Wx ₁ of the first cut pieces Wa on C2 of the conveyor 5, that is, the take-up It moves to the bonding position in the connection part X with the conveyor 6. Then, after the non-cut end edge Wx ₁ of the first cut piece Wa and the non-cut end edge Wx _{2 of} the second cut piece Wa are abutted at the connection portion X, the cut piece Wa is not cut. The vicinity of the edge portions Wx ₁ and Wx ₂ is pressed so as not to move by the pressing devices 19a and 19b, respectively.
[0044]
From such a state, a pair of upper and lower rotatable pulling rollers 18a and 18b of the laminating apparatus 8 move along the guide member 17 disposed in a direction perpendicular to the conveying direction, and a pair of upper and lower rotations. The uncut end edges Wx ₁ , Wx ₂ are bonded and pressed together while being pulled by two free pulling rollers 18a, 18b.
[0045]
In this way, the uncut end edge Wx ₁ of the first cut piece Wa and the non-cut end edge Wx _{2 of} the second cut piece Wa are bonded and joined together, and the take-up conveyor 6 is pulsed. The forward rotation drive is performed via the motor, and the terminal portion of the non-cut end edge portion Wx ₂ of the second cut piece Wa is moved to the bonding position at the connection portion X between the transport conveyor 5 and the take-up conveyor 6.
[0046]
Then, the third and subsequent cut pieces Wa are, like the first cut pieces Wa, the vacuum means 28 of the conveying means 9 for the two-axis combination descending from the position A2 of the feed conveyor 4b, and the vacuum pad In this state, the traveling frame 26 moves to the position (2) of the center position ZZ of the take-up conveyor 6 and the transfer conveyor 5 along the guide frames 25a and 25b. The third cut piece Wa held by suction 32 is placed in the center position ZZ of the transport conveyor 5 in the same direction, and the transport conveyor 5 is driven to rotate forward so that the third cut piece Wa is not moved. terminal portion of the cutting edge portion Wx ₂ moves to the adhesion position of the connection part X between the conveyor 5 and the take-off conveyor 6.
[0047]
After this, the non-cutting edges Wx ₁ of the first cut piece Wa and the third terminal of the non-cutting edges Wx ₂ cut piece Wa is stuck by laminating device 8 as described above.
[0048]
After repeating such an operation and joining the non-cutting edge portions Wx ₁ and Wx ₂ of the cut piece Wa one by one to form the length of one tire, the tire forming drum 2 is started from the position B2 of the take-up conveyor 6. The tire is molded by supplying the above.
[0049]
As described above, the band-shaped material W formed to have a width of 1 / n of the length of one tire unrolled from the unwinding roll 11 of the supply unit 1 (the circumferential length of the forming drum 2) is formed into the tire forming width. It is cut into H and formed into a length of one tire by connecting n pieces of this strip-shaped material W. When considering tire uniformity, n pieces of cut pieces are cut and joined together. Is preferred.
[0050]
【The invention's effect】
In the present invention, after the strip of the band-shaped material first cut as described above is transferred to a predetermined position on the take-up conveyor directly connected to the forming drum via the conveying means, the take-up conveyor is driven in reverse. The non-cut edge of the cut piece is moved back to the bonding position, and then the second cut piece of the strip-shaped material cut is transferred to a predetermined position on the transfer conveyor via the transfer means, and the transfer conveyor is moved to the correct position. The non-cut end edge of the second cut piece is conveyed to the bonding position by rolling, and the non-cut end edge of the first cut piece and the second cut piece are joined together by the bonding device, The third and subsequent cut pieces convey the joined strip-shaped material to the forming drum side by a take-up conveyor for a predetermined distance, and in the same way as the second cut pieces, the cut pieces are transferred to a predetermined position on the conveyor. To the laminating device The so combined sequentially joining the uncut edges the Judges of cut pieces molded to a length of one minute tires without non-cutting edge of the cut pieces into the gap between the conveyor and the take-off conveyor fall off, cut The cut pieces can be reliably joined at the connecting portion between the conveyor and the take-up conveyor, and the joining of the strip-like materials can be automated.
[0051]
In the belt material joining device of the present invention, the belt-shaped material is placed between the front and back surfaces of the reinforcing cords arranged in parallel with the rubber material and the tire molding drum between the belt material and the tire molding drum. A feed conveyor equipped with a cutting device that cuts into a length and a transfer conveyor and a take-up conveyor that can be rotated in a normal or reverse direction directly connected to the forming drum are arranged in series in a direction perpendicular to the transport direction of the feed conveyor. At the connection between the conveyor and the take-up conveyor, a laminating device is installed for joining the non-cut edges of the strips of the strip-shaped material, and between the feed conveyor and the transport conveyor, and between the feed conveyor and the take-up conveyor, In the meantime, since the conveyor means to suck and hold the cut pieces of the strip-shaped material is installed, the uncut edge of the cut pieces is connected to the conveyor and take-up conveyor. In reliably can perform seaming, in synchronism with the molding cycle, there is an effect that it is possible to automate the seaming of the belt-like material by a simple inexpensive mechanism.
[Brief description of the drawings]
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a schematic configuration diagram of an entire joining apparatus for carrying out a method for joining strip-shaped materials according to the present invention.
FIG. 2 is a partially enlarged front view of a feed conveyor and a conveying unit that sucks, holds, and transfers a cut piece of strip-shaped material.
FIG. 3 is a plan view of FIG. 2;
FIG. 4 is a partially enlarged side view of the cutting device.
FIG. 5 is a partially enlarged side view of the laminating apparatus.
6 is a schematic side view of the bonding apparatus in FIG. 5. FIG.
FIG. 7 is a partially enlarged front view of the vacuum means of the transport means.
FIG. 8 is an enlarged front view of a main part of the vacuum means.
FIG. 9 is an explanatory diagram showing a transport path for a strip of strip-shaped material.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Supply means of strip | belt material 2 Molding drum 3 Cutting device 4a, 4b Feed conveyor 5 Conveyor conveyor 6 Take-out conveyor 7 Control apparatus 8 Laminating apparatus 9 Conveying means for biaxial combination 10 Support frame 11 Unwinding roll 12 Tension adjusting apparatus 13 Motor 14 Round blade 15 Cutting guide 16 Holding means 17 Guide member 17a Guide rail M Drive motor S Drive chain S
18a, 18b Pulling rollers 19a, 19b Holding device 20 Lifting device 21 Driving means 22 Support bracket 23a, 23b Holding cylinder 24 Guide rail 25a, 25b Guide frame 26 Traveling frame 27 Guide rail 28 Vacuum means 29 Lifting cylinder 30 Support plate 31 Cylinder 32 Vacuum pad W Strip material Wa Cut piece Wx _1, Wx ₂ Uncut edge X Connection

Claims

A take-up conveyor which cuts the strip-shaped material fed from the feeding means of the strip-shaped material into a length corresponding to the tire forming width on the feed conveyor, and directly connects the cut piece of the strip-shaped material to the molding drum via the conveying means. And a method for joining strip-shaped materials that are formed in a length corresponding to one tire by sequentially laminating uncut end edges while being transferred to a predetermined position on a conveyor,
The first cut piece of the band-shaped material is transferred to a predetermined position on the take-up conveyor directly connected to the forming drum via the conveying means, and then the take-up conveyor is driven in reverse so that the non-cut edge of the cut piece Is moved back to the laminating position, and then the second cut piece of the strip-shaped material cut is transferred to a predetermined position on the transport conveyor via the transport means, and the transport conveyor is driven to rotate forward to perform the second cutting. The uncut end edge of the piece is transported to the bonding position, the uncut end edge of the first cut piece and the second cut piece are joined together by the bonding device, and the third and subsequent cut pieces are The joined strip-like material is conveyed to the forming drum side by a take-up conveyor for a predetermined distance, and similarly to the second cut piece, the cut pieces are sequentially transferred to a predetermined position on the transfer conveyor via the conveying means, and the pasting material is transferred. Non-cut end of the cut piece by the aligning device Seaming method of the strip material characterized in that parts combined sequentially joining the same Judges molding to a length of one minute tire.

The method for joining belt-like materials according to claim 1, wherein the belt-like material is a tire carcass material in which rubber materials are coated on front and back surfaces of reinforcing cords arranged in parallel.

A feed conveyor provided with a cutting device for cutting the belt-shaped material into a predetermined length between a belt-shaped material supply means in which rubber materials are coated on the front and back surfaces of reinforcing cords arranged in parallel and the tire molding drum; In the direction perpendicular to the conveying direction of the feeding conveyor, a conveying conveyor and a take-up conveyor that can be rotated forward or reversely connected directly to the forming drum are arranged in series. A laminating device is installed to join the non-cut edges of the cut pieces, and the cut pieces of the strip-shaped material are adsorbed between the feed conveyor and the transfer conveyor and between the feed conveyor and the take-up conveyor. A belt material splicing device characterized in that a conveying means for holding and transferring is provided.

The banding material joint according to claim 3, wherein the laminating device comprises a pair of upper and lower rotatable pulling rollers that reciprocate in a direction perpendicular to the conveying direction of the band-shaped material at a connection portion between the conveying conveyor and the take-up conveyor. Alignment device.