JP4073289B2

JP4073289B2 - Bonding device

Info

Publication number: JP4073289B2
Application number: JP2002311991A
Authority: JP
Inventors: 齋藤久男; 齋藤三郎
Original assignee: 株式会社丸十鉄工所
Priority date: 2002-10-28
Filing date: 2002-10-28
Publication date: 2008-04-09
Anticipated expiration: 2022-10-28
Also published as: JP2004142917A

Description

【０００１】
【発明の属する技術分野】
この発明は貼合装置に関するものであり、剛性が高い比較的厚みを持った２枚の枚葉紙を貼合するのに適したものである。
【０００２】
【従来の技術】
２枚の枚葉紙（一方が台紙で他方が表紙）を貼合（合紙）する装置として、台紙の積層体及び表紙の積層体から台紙及び表紙を別個に１枚づつ取出し、かつ取出された台紙上には接着剤を塗布し、一対の回転ベルト間において台紙と表紙とを接着剤層を介して合体・加圧することにより台紙上に表紙を貼着させるようにしたものが公知である（特許文献１参照）。
【０００３】
【特許文献１】
特開平６−１５５６４０号公報
【発明が解決しようとする課題】
特許文献１に開示の従来技術は貼合すべき２枚の枚葉紙をそれぞれ積層状態とし、それぞれの積層物から枚葉紙を一枚一枚給紙し、台紙の側には接着剤を塗布し、台紙と表紙とをそれぞれ専用のベルトベルトコンベヤにて貼合装置まで搬送し、この貼合装置においてベルト間において２枚の枚葉紙を接着剤を介して合体・加圧している。他方、同一の紙質の紙を２枚貼合する場合もすることもあるが、特許文献１の技術に依拠するとすると、貼合すべき紙が同一の素材のものであるにも係わらず上下の枚葉紙のそれぞれについて給紙装置及び移送ベルトが必要であり、部品点数が増え、装置が大型化しかつ構造も複雑化するため、コストが嵩むものとなっていた。
【０００４】
この発明は以上の問題点に鑑みてなされたものであり、同質の２枚の枚葉紙の貼合を効率的に行うために特に適した低コストの貼合装置を提供することを目的とする。
【０００５】
【課題を解決するための手段】
請求項１に記載の発明によれば、多数の枚葉紙を貯留する枚葉紙貯留手段と、枚葉紙貯留手段から枚葉紙を個々に取出す枚葉紙取出し手段と、取出された枚葉紙を搬送経路に沿って搬送する枚葉紙搬送手段と、一連に取出された２枚の枚葉紙のうちの第１の枚葉紙を前記搬送経路から離間させて一旦保持せしめる枚葉紙保持手段と、一連に取出された２枚の枚葉紙のうち後続して取出された第２の枚葉紙の面上に接着剤を付与する接着剤付与手段と、第１の枚葉紙を第２の枚葉紙に接着剤の付与面を介して合体させる枚葉紙合体手段と、合体された枚葉紙を搬送経路より排出する枚葉紙排出手段と、排出された合体枚葉紙を加圧する枚葉紙加圧手段とを具備したことを特徴とする貼合装置が提供される。
【０００６】
請求項１の発明の作用・効果を説明すると、枚葉紙貯留手段から枚葉紙は枚葉紙取出し手段により一枚一枚取出され、搬送経路に沿って逐次的に搬送され、一連の２枚の枚葉紙のうちの第１の枚葉紙は一旦前記搬送経路から離間して保持される。次いで、一連の２枚の枚葉紙のうち第２の枚葉紙が搬送経路上を搬送され、その間において第２の枚葉紙の上面に接着剤が塗布され、第２の枚葉紙に対して第１の枚葉紙がその間に接着剤層を介して合体される。合体後に第１及び第２の枚葉紙は相互に密着するように加圧され、貼合が行われる。この発明では共通の給紙装置から排出される一連の紙における隣接する２枚の紙を接着剤によって貼合することができ、給紙装置の部品点数が少なくなり、コストの大幅低減を実現することができる。
【０００７】
請求項２に記載の発明によれば、多数の枚葉紙を積載して貯留する枚葉紙貯留手段と、枚葉紙貯留手段から枚葉紙を個々に取出す枚葉紙取出し手段と、取出された枚葉紙を搬送経路に沿って搬送するベルトコンベヤと、一連に取出された２枚の枚葉紙のうち先行して取出された第１の枚葉紙をベルトコンベヤ上面から離間して保持する枚葉紙保持手段と、一連に取出された２枚の枚葉紙のうち後続して取出されたベルトコンベヤ上の第２の枚葉紙の面上に接着剤を付与する接着剤付与手段と、搬送経路における所定位置において第１の枚葉紙をベルトコンベヤ上の第２の枚葉紙に対して移動させることにより、第１及び第２の枚葉紙を接着剤の付与面を介して合体させる枚葉紙合体手段と、合体された枚葉紙をベルトコンベヤより排出する枚葉紙排出手段と、排出された合体枚葉紙を加圧する枚葉紙加圧手段とを具備したことを特徴とする貼合装置が提供される。
【０００８】
請求項２の発明の作用・効果を説明すると、枚葉紙は枚葉紙取出し手段により一枚一枚取出され、ベルトコンベヤ上を搬送経路に沿って逐次的に搬送され、一連の２枚の枚葉紙のうちの第１の枚葉紙はベルトコンベヤ面から離間した位置に保持される。次いで、一連の２枚の枚葉紙のうち第２の枚葉紙がベルトコンベヤ上を搬送され、その間においてベルトコンベヤ上の第２の枚葉紙面上に接着剤が塗布される。そして、その上方に保持された第１の枚葉紙はベルトコンベヤ上の第２の枚葉紙に向けて相対移動され、第１の枚葉紙と第２の枚葉紙とはその間に接着剤層を介して合体される。この発明では共通の給紙装置からの一連の紙を接着剤によって貼合することができ、給紙装置の部品点数が少なくなり、コストの大幅低減を実現することができると共に、ベルトコンベヤの採用により枚葉紙の移送を確実に行うことができ、貼合ミスがなく高い歩留まりの加工を実現することができる。
【０００９】
請求項３に記載の発明によれば、請求項１若しくは２に記載の発明において、搬送経路における所定位置に起伏自在なストッパを設けたことを特徴とする貼合装置が提供される。
【００１０】
請求項３の発明の作用・効果を説明すると、ストッパを起伏自在に設けることによりストッパの起立位置では枚葉紙を搬送経路上の所定位置に確実に停止せしめることができ、貼合される第１及び第２の枚葉紙の芯合を簡単かつ確実に得ることができ、他方ストッパを寝かせることにより貼合後の枚葉紙の下流側への移送にはなんら支障はない。
【００１１】
請求項４に記載の発明によれば、請求項１から３のいずれか一項において、枚葉紙取出し手段若しくは枚葉紙保持手段又はその双方は吸引式に枚葉紙を保持することを特徴とする貼合装置が提供される。
【００１２】
請求項４の発明の作用・効果を説明すると、枚葉紙の取出し若しくは保持又はその双方を吸引方式により簡便確実に行うことができる。
【００１３】
請求項５に記載の発明によれば、多数の枚葉紙を積載して貯留する枚葉紙貯留手段と、枚葉紙貯留手段から枚葉紙を個々に取出す吸引式取出し機構と、取出された枚葉紙を搬送経路に沿って搬送する枚葉紙搬送手段と、取出された枚葉紙を前記搬送経路における所定位置に一端停止せしめる起伏自在なストッパと、一連に取出された２枚の枚葉紙のうち先行して取出された第１の枚葉紙を所定位置の上方に保持する吸引保持機構と、一連に取出された２枚の枚葉紙のうち後続して取出された第２の枚葉紙の面上に接着剤を付与するガンと、吸引保持機構により保持された第１の枚葉紙を前記所定位置において第２の枚葉紙に対して相対的に移動させることにより、第１及び第２の枚葉紙を接着剤の付与面を介して合体させる枚葉紙合体手段と、合体された枚葉紙を枚葉紙搬送手段より排出する枚葉紙排出手段と、排出された合体枚葉紙を加圧する枚葉紙加圧手段とを具備したことを特徴とする貼合装置が提供される。
【００１４】
請求項５の発明の作用・効果を説明すると、枚葉紙は枚葉紙取出し手段により吸引式に一枚一枚取出され、搬送経路に沿って逐次的に搬送され、一連の２枚の枚葉紙のうちの第１の枚葉紙は前記搬送経路上においてストッパにより一旦停止してからその上方に離間した位置に保持される。次いで、一連の２枚の枚葉紙のうち第２の枚葉紙が搬送経路上を搬送され、その間において第２の枚葉紙の上面に接着剤が塗布され、再び前記ストッパにおいて一旦停止される。そして、その上方に吸引保持された第１の枚葉紙は第２の枚葉紙に向けて相対移動され、第１の枚葉紙と第２の枚葉紙とはその間に接着剤層を介して合体される。この発明では共通の給紙装置からの一連の紙を接着剤によって貼合することができ、給紙装置の部品点数が少なくなり、コストの大幅低減を実現することができると共に、吸引式の枚葉紙の取出し及び保持並びに起伏自在のストッパの採用により所定位置に確実に停止せしめることができ、良好な貼着状態を確実に得ることができる。
【００１５】
請求項６に記載の発明によれば、請求項１から５のいずれか一項に記載の発明において、前記枚葉紙排出手段は、前記所定位置の手前における搬送通路に設けられ、搬送経路上を所定位置に向かう枚葉紙の移動は妨げることなく、枚葉紙が通過後は枚葉紙の後端縁と係合しうるように構成された押圧部材と、押圧部材を駆動することにより合体後の枚葉紙を搬送経路を下流側に移送せしめる手段とを具備したことを特徴とする貼合装置が提供される。
【００１６】
請求項６の発明の作用・効果を説明すると、押圧部材は所定位置への枚葉紙を何ら妨げることなく単なる押圧駆動により合体後の枚葉紙を加圧手段に確実に排出することができ、構成の単純化と確実な低位置への確保を行うことができる。
【００１７】
請求項７に記載の発明によれば、請求項１から６のいずれか一項に記載の発明において、前記枚葉紙加圧加圧手段は取出し装置の下流側の搬送経路に設置した一対の加圧ローラであることを特徴とする貼合装置が提供される。
【００１８】
請求項７の発明の作用・効果を説明すると、加圧ローラは第１と第２の枚葉紙をその間で加圧し、機械的な加圧力下で第１と第２の枚葉紙とを接着剤を介して加圧し強固な貼合状態を得ることができる。
【００１９】
請求項８に記載の発明によれば、請求項１から７のいずれか一項に記載の発明において、前記接着剤は低温接着性であることを特徴とする貼合装置が提供される。
【００２０】
請求項８の発明の作用・効果を説明すると、低温接着性の接着剤とすることにより非加熱で接着剤は固化されるため貼合紙が乾燥後の反り返りがない。また、点状、線状、べた塗りなどの所望の塗布方式が採用可能であり、塗布量の加減が容易であり、また接着剤の使用量の節約を図ることができる。
【００２１】
請求項９に記載の発明によれば、請求項１から８のいずれか一項に記載の発明において、前記接着剤を第２の枚葉紙の上面に散開的に付与する手段を具備したことを特徴とする貼合装置が提供される。
【００２２】
請求項９の発明の作用・効果を説明すると、接着剤の付与を散開的に行うが適量の塗布により第１及第２の枚葉紙の加圧により均等に分散させることができ、接着剤を節約した上で良好な貼合状態を得ることができる。
【００２３】
【発明の実施の形態】
以下図面によりこの発明の実施形態を説明すると、図１において、昇降可能な支持台１０（この発明の枚葉紙貯留手段）上に枚葉紙の積層物１２が貯留される。枚葉紙は所謂厚紙の範疇に属するものであり、その坪量の範囲は例えば500g/m²〜680g/m²であり、後述の通り吸盤１６による吸引によってその板状形態を損なうことなく保持できる剛性を備えている。そして、大きさとしては、例えば、625mm×800mm〜900mm×1200mmの範囲であるが、これは設計事項であり、この範囲外の大きさのものであっても取扱い得るような設計はもとより容易である。
【００２４】
枚葉紙の積層物１２の上方には吸引式取出し機構１４（この発明の枚葉紙取出し手段）が配置される。吸引式取出し機構１４は吸盤１６を備えており、吸盤１６は積層物１２における最上部の枚葉紙をＰを水平に安定して吸引保持できるように適当な間隔で複数設けられる。吸盤１６は支持部材１８を介してエアシリンダ２０のピストンロッド20-1に連結され、ピストンロッド20-1の伸縮により支持部材１８を矢印ａ1, a2のように昇降させることができる。また、エアシリンダ２０の本体は図示しない別のエアシリンダなどの往復機構により矢印ｂ1, b2のように前後に水平移動可能である。
【００２５】
ベルトコンベヤ２２（この発明の枚葉紙搬送手段）は吸引式取出し機構１４により取出された一枚の枚葉紙Ｐを水平な搬送経路に沿って搬送するもので、一対のローラ24A, 24B間に搬送ベルト２６を巡回せしめて構成される。図３に示すように搬送ベルト２６はこの実施形態においては３つの区分されたベルト部材26-1, 26-2, 26-3とから構成され、中央のベルト部材26-1と両側のベルト部材26-2, 26-3との間には隙間が形成されている。また、図１に示すようにベルトコンベヤ２２による搬送経路に沿って間隔をおいて押さえローラ27, 27'が適宜配置され、これらの加圧ローラ押さえローラ27, 27'は図示しないそれぞれのアームの自由端に回転自在に設けられ、搬送ベルト２６上を移送されてくる枚葉紙をその自重によって搬送ベルト２６の上面に軽微な力で押し付ける役目を達成するものである。
【００２６】
コールドグルーガン２８（この発明の接着剤付与手段）はベルトコンベヤ２２の入口付近において搬送ベルト２６の上面に対向して設けられ、この実施形態ではコールドグルーガン２８は図２に示すように搬送ベルトの幅方向に間隔を置いて４個設けられる。各コールドグルーガン２８は下端にノズル28-1を備えており、ノズル28-1からはベルトコンベヤ２２上を移送中の枚葉紙Ｐに向けて低温接着性の接着剤が噴出される。図２はこの実施形態における枚葉紙Ｐに対する接着剤の噴出パターンを模式的に示しており、ベルトコンベヤ２２上を矢印ｃ方向に移送される枚葉紙Ｐの上面には枚葉紙Ｐの幅方向に離間した４本のコールドグルーガン２８から低温接着剤（コールドグルー(cold glue)：多くは水性エマルジョン合成樹脂を主成分とし、加熱を要することなく常温にて固化する性質を有した接着剤）の塗布が間歇的に行われる。即ち、幅方向には同時に４箇所で所定時間(t1)コールドグルーガン２８からの接着剤の噴射が行われ、その後所定時間(t2)接着剤の噴射を休止し、以後、噴射と休止とが３回繰り返され、その結果、この例では、一枚の枚葉紙Ｐに４×４＝１２箇所で散開的な接着剤の塗布が行われるようになっている。尚、塗布時間(t1)及び休止時間(t2)は必要最小限の接着剤の使用下で所望の接着効果が得られるように適合すべき因子（接着剤の塗布量の加減因子）であり、接着剤の塗布方式はこの例に限定されず、点状、線状、又はべた塗りの任意の塗布方式を採用しうるものであることはいうまでもない。また、コールドグルーガン２８はこの実施形態では幅方向に４本設けているがこれも必要に応じて調整しうる適合因子であることはいうまでもない。
【００２７】
図１においてベルトコンベヤ２２における下流側のローラ２４Ｂに近接してストッパ３０（この発明の停止手段）が設けられる。ストッパ３０は上下両端が枚葉紙Ｐの搬送方向における下流側に幾分反った薄板材にて構成される。図３及び図４にて示すように、ストッパ３０は枢軸３２によって図４の直立位置と図５の水平位置との間を回動可能に設けられる。直立位置（図４）と水平位置（図５）との間でストッパ３０の回動を行わしめる機構について説明すると、ストッパ３０は枚葉紙Ｐとの当接面と反対側にラグ３４を溶接固定しており、このラグ３４に枢軸３２が挿通されることにより枢軸３２の周りでのストッパ３０の回動が可能となる。ストッパ３０の回動駆動用のエアシリンダ３６はそのピストンロッド36-1がストッパ３０の枢軸３２から離間側のラグ３４の端部にピン３７により回動可能に連結される。そのため、ピストンロッド36-1が図４のように矢印k1方向に伸張した状態ではストッパ３０は図４の時計方向（矢印ｄと反対方向）に最大限回動された状態をとり、ストッパ３０は直立し、搬送経路に沿って移送される枚葉紙Ｐに係合し、枚葉紙Ｐを所定位置に停止せしめることができる。また、エアシリンダ３６への空気圧の方向を変えることによりピストンロッド36-1を矢印k2の方向に収縮させると、ストッパ３０は矢印ｄのように反時計方向に回動し、図５に示すようにストッパ３０は水平位置をとり、ストッパ３０の上面が搬送経路と面一（又は面一位置より少し沈んだ位置）となり、この場合は搬送経路での枚葉紙Ｐの下流側への移送は妨げられることがないようになっている。
【００２８】
再び図１において、ベルトコンベヤ２２における下流側のローラ２４Ｂの上方に吸引保持機構４０（この発明の枚葉紙保持手段）が設けられる。吸引保持機構４０は吸盤４２を備えており、吸盤４２はベルトコンベヤ２２の上方位置において一枚の枚葉紙Ｐを水平に安定して吸引保持できるように適当な間隔で複数設けられる。吸盤４２は支持部材４４を介してエアシリンダ４６のピストンロッド46-1に連結され、ピストンロッド46-1の伸縮により支持部材４４を矢印e1, e2のように昇降させることができる。吸盤４２はエアシリンダ４６と協働することにより吸盤４２に保持された第１の枚葉紙をコンベヤベルト２６上の、接着剤塗布された第２の枚葉紙に合体せしめる枚葉紙合体手段を構成する。
【００２９】
図１及び図３において、枚葉紙排出手段４８は貼合後の枚葉紙を下流側に送出す機能を達成するもので、プッシャ５０（この発明の押圧部材）を備える。図３に示すように、プッシャ５０は中央のベルト部材26-1と両側のベルト部材26-2, 26-3との間に形成される隙間において回動自在に設置されている。図４に示すようにプッシャ５０は板状をなし、その下面に押圧ラグ50-1を溶接しており、この押圧ラグ50-1に支持軸５４がフリーに挿通され、これによりプッシャ５０は支持軸５４の回りを回動可能となっているが、その重量バランスの設定により常態においては図４に示すようにプッシャ５０は時計方向への回動傾向を持たされており、適当なストッパ（図示しない）によりそれ以上の時計方向の回動は規制され、図４に示すようにプッシャ５０及びそれと一体の押圧ラグ50-1が搬送ベルト２６（ベルト部材26-1, 26-2, 26-3）の上面から幾分突出する位置を取っている。常態でのプッシャ５０のこの傾斜角度は矢印ｃで示す枚葉紙の移送方向に対しては１２０度程度であり、従って、搬送ベルト２６上を矢印ｃの方向に移送されて来る枚葉紙Ｐに対しては、プッシャ５０は支持軸５４の回りを矢印ｆのように反時計方向に回動し、想像線５０´に示すように搬送経路と水平にかつ面一位置（又は面一位置より幾分沈んだ位置）をとり、そのため、搬送ベルト２６上における矢印ｃ方向への枚葉紙Ｐとの係合によりプッシャ５０は矢印ｆ方向にスムースに回動し、ベルトコンベヤ２２による枚葉紙Ｐの矢印ｃ方向の移送には何ら支障は来たすことがない。そして、枚葉紙Ｐの下流端がプッシャ５０を通過すると、プッシャ５０はそのウエイトのバランスにより図４の時計方向（矢印ｆと反対方向）に回動した実線の傾斜位置に自然に復帰することができる。図３に示すように支持軸５４は幅方向に離間した一対のプッシャ５０の下面の押圧ラグ50-1に挿通されており、支持軸５４はブラケット５５の直立部55-1に遊嵌され、ブラケット５５はエアシリンダ５６のピストンロッド56-1の自由端に連結される。そのため、ピストンロッド56-1を矢印g1, g2のように伸縮させることにより、ブラケット５５及び支持軸５４を介しプッシャ５０（及びそれと一体の押圧ラグ50-1）は同方向に往復移動することができる。
【００３０】
図１において、ストッパ３０の下流側に近接して、一対の加圧ローラ60A, 60B（本発明の加圧手段）が配置される。加圧ローラ60A, 60Bは貼合後の２枚の枚葉紙を加圧し、相互密着に至らしめるものである。そして加圧ローラ60A, 60Bの下流側に一対のガイドローラ62A, 62Bが配置される。昇降可能支持台６４は貼合紙Ｑを積層状態にて受け取るため設置されている。
【００３１】
次に、この発明の実施形態における貼合装置の動作を説明すると、吸引式取出し機構１４の吸盤１６は上方の退避位置からピストンロッド20-1の伸張によって矢印a1のように下降し、積層物１２の最上面の枚葉紙Ｐに押し付けられ、ピストンロッド20-1が収縮することによって吸盤１６によって矢印a2のように持ち上げられる。次に、図示しない水平移動機構により吸引式取出し機構１４は矢印b1のように前進され、吸盤１６に保持された枚葉紙Ｐの先端は一対のローラ24A, 24B間にニップされ、同時に又はそれに先行して吸盤１６による吸引を解除することにより以後は搬送ベルト２６上を矢印ｃのように移送されてゆく。移送中の枚葉紙を図１でＰ´にて示す。隣接した２枚の枚葉紙の搬送工程における最初の枚葉紙の搬送時においては、コールドグルーガン２８の動作は休止される。
【００３２】
搬送ベルト２６上を移送される枚葉紙Ｐはプッシャ５０と係合するとプッシャ５０を図４の想像線５０´のように水平位置まで回動せしめるが、枚葉紙Ｐがプッシャ５０を完全に通過してしまうと、プッシャ５０はそのウエイトにより図４の傾斜位置に自然に復帰される。そして、図４に示すように枚葉紙Ｐが起立位置するストッパ３０に係合することにより枚葉紙は所定位置に停止せしめられ、同時にベルトコンベヤ２２は停止される。ストッパ３０に係合することにより停止した枚葉紙を図１でＰ″にて示す。そして、吸引保持機構４０のエアシリンダ４６のピストンロッド46-1が矢印e1方向に伸張され、搬送ベルト２６上にて所定位置に停止された枚葉紙に吸盤４２を係合せしめて後ピストンロッド46-1が矢印e2方向に収縮されることにより枚葉紙は吸盤４２に吸着された状態で垂直上方に変位される。吸盤４２に吸着され、ベルトコンベヤ上面から上方に離間した位置に一旦保持（待機）された枚葉紙を図１及び図４においてP1にて表す。
【００３３】
次に、矢印b2方向に後退待機していた吸引式取出し機構１４が再び動作に入り、前述と同様に、一連の２枚の枚葉紙のうちの二枚目の枚葉紙Ｐを持ち上げ（矢印a2）、ローラ24A, 24Bに給紙させ（矢印b1）、ベルトコンベヤ２２上での移送（矢印ｃ方向）が行われる。コールドグルーガン２８は今度は駆動され、ノズル28-1より接着剤を所定時間t1噴出してから所定t2噴射を休止する、という動作を数回（この実施形態では４回）繰り返す。そのため、図２に示すように一連の２枚の枚葉紙のうちの第２の枚葉紙Ｐの上面には接着剤の４×４の散開的な塗着部分Ｇが形成される。この第２の枚葉紙は図４ではP2によって表され、第２の枚葉紙P2の上面における接着剤の塗布部分Ｇも図示されている。そして、上面に接着剤の散開的な塗布部分Ｇを有したこの第２の枚葉紙P2は起立位置したストッパ３０に係合することにより所定位置に停止される。そして、吸引保持機構４０のエアシリンダ４６のピストンロッド46-1が伸張され、吸盤４２に保持されていた枚葉紙P1は矢印e1のように垂直下方に移動され、搬送ベルト上の第２の枚葉紙P2に接着剤塗布部分Ｇを介して合体される。
【００３４】
このようにして一連の２枚の枚葉紙P1, P2が接着剤塗布部分Ｇを介して合体された状態で、エアシリンダ３６のピストンロッド36-1は図４の矢印k2のように収縮され、ストッパ板３０は矢印dのように反時計方向に図５に示す水平状態まで回動せしめられる。そして、図４のエアシリンダ５６への空気圧の切替により、ピストンロッド56-1が矢印g1の方向に伸張し、ピストンロッド56-1の先端に固定されたブラケット５５及びブラケット５５の両端のプッシャ５０（及びその一体部としての押圧ラグ50-1）も同方向に移動（前進）する。プッシャ５０の前進の過程で押圧ラグ50-1は図５に示すように搬送ベルト上の合体された２枚の枚葉紙P1, P2の後端に係合し、枚葉紙P1, P2は水平位置したストッパ３０を越えて前進せしめられ、最終的には枚葉紙P1, P2の先端は図１の加圧ローラ60A, 60B間にニップせしめられる。加圧ローラ60A, 60B間でニップされることにより枚葉紙P1, P2は接着剤を介して圧着せしめられ、貼着紙となる。接着剤は低温接着性であり加圧ローラ60A, 60Bはヒータを備えず、枚葉紙はなんら加熱されることがないため、貼着後の枚葉紙の反り返りは実質的に起こることがない。貼合工程が完了した貼着紙Ｑはガイドローラ62A, 62Bを介して支持台６４上に積層物６６として順次積み上げられて行く。
【００３５】
このようにして一連の２枚の枚葉紙の貼合のための１サイクルの工程が完了し、エアシリンダ３６のピストンロッド36-1が図４の矢印k1の方向に伸張し、ストッパ３０は起立位置に復帰し、エアシリンダ５６のピストンロッド56-1は矢印g2の方向に収縮し、プッシャ５０（これと一体な押圧ラグ50-1）は初期位置まで後退し、次の一連の２枚の枚葉紙の貼合工程の開始の準備に移行される。
【図面の簡単な説明】
【図１】図１はこの発明の貼合装置の全体概略図である。
【図２】図２は枚葉紙上への接着剤の塗布状態を模式的に示す図である。
【図３】図３はストッパ付近におけるコンベヤベルトの概略的上面図である。
【図４】図４は図３のIV−IV線にて表される矢視断面図図であり、ストッパによる枚葉紙の位置決め状態を表している。
【図５】図５は図４と同様であるが、貼合後の枚葉紙を押圧部材により移送中の状態を表している。
【符号の説明】
１０…支持台（枚葉紙貯留手段）
１２…枚葉紙の積層物
１４…吸引式取出し機構（枚葉紙取出し手段）
１６…吸盤
１８…支持部材
２０…エアシリンダ
２２…ベルトコンベヤ（枚葉紙搬送手段）
２６…搬送ベルト
２８…コールドグルーガン（接着剤付与手段）
３０…ストッパ
３６…ストッパ回動駆動用エアシリンダ
４０…吸引保持機構
４６…エアシリンダ（枚葉紙合体手段）
４２…吸盤
５０…プッシャ（枚葉紙搬送手段）
５４…支持軸
５６…エアシリンダ
60A, 60B…加圧ローラ（加圧手段）
６４…昇降可能支持台[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a laminating apparatus and is suitable for laminating two sheets having a relatively high rigidity and a relatively large thickness.
[0002]
[Prior art]
As a device for laminating (slip paper) two sheets of paper (one on the mount and the other on the cover), the mount and cover are taken out one by one from the mount laminate and cover laminate. It is known that an adhesive is applied onto the mount, and the cover is attached to the mount by combining and pressing the mount and the cover through an adhesive layer between a pair of rotating belts. (See Patent Document 1).
[0003]
[Patent Document 1]
JP-A-6-155640 [Problems to be Solved by the Invention]
The prior art disclosed in Patent Document 1 is made by laminating two sheets to be bonded together, feeding sheets one by one from each laminate, and applying an adhesive on the side of the mount The base sheet and the cover are respectively applied to a bonding device by a dedicated belt belt conveyor, and the two sheets are combined and pressed between the belts using an adhesive in the bonding device. On the other hand, there are cases where two sheets of the same paper quality are pasted together. However, depending on the technique of Patent Document 1, the upper and lower sides of the paper to be pasted are made of the same material. A sheet feeder and a transfer belt are required for each sheet of paper, and the number of parts increases, the apparatus becomes larger and the structure becomes complicated, resulting in increased costs.
[0004]
The present invention has been made in view of the above problems, and an object thereof is to provide a low-cost laminating apparatus particularly suitable for efficiently laminating two sheets of the same quality. To do.
[0005]
[Means for Solving the Problems]
According to the first aspect of the present invention, the sheet storage means for storing a large number of sheets, the sheet take-out means for individually taking out the sheets from the sheet storage means, and the taken-out sheets A sheet conveying means for conveying a sheet along a conveying path, and a sheet for temporarily holding a first sheet of two sheets taken out in series apart from the conveying path. A paper holding means, an adhesive application means for applying an adhesive onto the surface of the second sheet subsequently taken out of the two sheets taken out in series, and the first sheet A sheet merging means for merging the paper with the second sheet through an adhesive application surface, a sheet discharging means for discharging the combined sheet from the conveyance path, and the discharged merged sheet There is provided a laminating apparatus comprising a sheet pressurizing unit that pressurizes a sheet.
[0006]
The operation and effect of the invention of claim 1 will be described. The sheets are taken out one by one from the sheet storage means by the sheet take-out means, sequentially conveyed along the conveyance path, and a series of 2 The first sheet of the sheets is temporarily held away from the transport path. Next, of the series of two sheets, the second sheet is conveyed on the conveyance path, and an adhesive is applied to the upper surface of the second sheet between the two sheets, and the second sheet is applied to the second sheet. On the other hand, the first sheet is merged through the adhesive layer therebetween. After the coalescence, the first and second sheets are pressurized so as to be in close contact with each other, and bonding is performed. In the present invention, two adjacent sheets in a series of sheets discharged from a common sheet feeding device can be bonded with an adhesive, and the number of parts of the sheet feeding device is reduced, realizing a significant cost reduction. be able to.
[0007]
According to the second aspect of the present invention, a sheet storage means for loading and storing a large number of sheets, a sheet take-out means for individually taking out the sheets from the sheet storage means, and take-out A belt conveyor that conveys the separated sheet along the conveyance path, and the first sheet that was previously taken out of the two sheets taken out in series is separated from the upper surface of the belt conveyor. Adhesive application for applying an adhesive on the surface of the second sheet on the belt conveyor that is subsequently taken out of the two sheets taken out in series The first sheet and the second sheet are provided with an adhesive application surface by moving the first sheet with respect to the second sheet on the belt conveyor at a predetermined position in the conveying path. Sheet merging means to be merged through, and a sheet for discharging the merged sheet from the belt conveyor A paper discharging means, the bonding apparatus according to claim is provided by comprising a sheet pressurizing means for pressurizing the discharged polymer sheet.
[0008]
The operation and effect of the invention of claim 2 will be described. The sheets are taken out one by one by the sheet take-out means, and sequentially conveyed along the conveying path on the belt conveyor, and a series of two sheets The first sheet of the sheets is held at a position spaced from the belt conveyor surface. Then, the second sheet of the series of two sheets is conveyed on the belt conveyor, and the adhesive is applied on the second sheet surface on the belt conveyor in the meantime. Then, the first sheet held above is moved relative to the second sheet on the belt conveyor, and the first sheet and the second sheet are bonded to each other. They are combined through the agent layer. In this invention, a series of papers from a common paper feeder can be bonded with an adhesive, the number of parts of the paper feeder can be reduced, and the cost can be greatly reduced, and a belt conveyor is used. Thus, the sheet can be reliably transferred, and there is no bonding error, and high yield processing can be realized.
[0009]
According to invention of Claim 3, in the invention of Claim 1 or 2, the bonding apparatus characterized by providing the stopper which can be raised / lowered in the predetermined position in a conveyance path | route is provided.
[0010]
The operation and effect of the invention of claim 3 will be described. By providing the stopper so that it can be raised and lowered, the sheet can be reliably stopped at a predetermined position on the conveying path at the stopper standing position, and the first bonding is performed. The centering of the 1st and 2nd sheet can be obtained easily and reliably, and on the other hand, there is no hindrance to the downstream transfer of the sheet after bonding by laying the stopper.
[0011]
According to a fourth aspect of the present invention, in any one of the first to third aspects, the sheet take-out means or the sheet holding means or both hold the sheet in a suction manner. A bonding apparatus is provided.
[0012]
The operation and effect of the invention of claim 4 will be described. The sheet can be taken out and / or held by the suction method in a simple and reliable manner.
[0013]
According to the invention described in claim 5, the sheet storage means for loading and storing a large number of sheets, the suction type take-out mechanism for taking out the sheets individually from the sheet storage means, A sheet transport means for transporting the collected sheet along the transport path, a retractable stopper for stopping the taken-out sheet at a predetermined position in the transport path, and two sheets taken out in series. A suction holding mechanism that holds the first sheet of paper that has been previously taken out above a predetermined position, and the second of the two sheets that have been taken out in succession. A gun for applying an adhesive on the surface of the second sheet and the first sheet held by the suction holding mechanism are moved relative to the second sheet at the predetermined position. A sheet combining means for combining the first and second sheets through the adhesive application surface; A laminating apparatus comprising: a sheet discharging unit that discharges the combined sheet from the sheet conveying unit; and a sheet pressing unit that pressurizes the discharged combined sheet. Is provided.
[0014]
The operation and effect of the invention of claim 5 will be described. Sheets are taken out one by one by a sheet take-out means by the sheet take-out means, sequentially conveyed along the conveyance path, and a series of two sheets. The first sheet of the sheets is temporarily stopped by a stopper on the conveyance path and then held at a position spaced above it. Next, of the series of two sheets, the second sheet is transported on the transport path, during which the adhesive is applied to the upper surface of the second sheet, and is temporarily stopped at the stopper again. The Then, the first sheet sucked and held above is moved relative to the second sheet, and an adhesive layer is interposed between the first sheet and the second sheet. United through. In this invention, a series of papers from a common paper feeding device can be bonded with an adhesive, the number of parts of the paper feeding device can be reduced, and the cost can be greatly reduced. By taking out and holding the leaf paper and adopting a undulating stopper, it can be surely stopped at a predetermined position, and a good sticking state can be reliably obtained.
[0015]
According to the invention described in claim 6, in the invention described in any one of claims 1 to 5, the sheet discharge means is provided in the transport path in front of the predetermined position, and is provided on the transport path. By driving the pressing member and a pressing member configured to be able to engage with the trailing edge of the sheet after the sheet has passed without interfering with the movement of the sheet toward the predetermined position. There is provided a laminating apparatus comprising means for transporting the combined sheets to the downstream side of the transport path.
[0016]
The operation and effect of the invention of claim 6 will be described. The pressing member can reliably discharge the combined sheet to the pressing means by simple pressing drive without interfering with the sheet to a predetermined position. Therefore, it is possible to simplify the configuration and ensure the low position.
[0017]
According to the invention described in claim 7, in the invention described in any one of claims 1 to 6, the sheet pressurizing / pressurizing means is a pair of installed in the transport path on the downstream side of the take-out device. A laminating apparatus is provided which is a pressure roller.
[0018]
The operation and effect of the invention of claim 7 will be described. The pressure roller presses the first and second sheets between them, and the first and second sheets are pressed under mechanical pressure. A strong bonding state can be obtained by applying pressure through an adhesive.
[0019]
According to invention of Claim 8, in the invention as described in any one of Claims 1-7, the said adhesive agent is low temperature adhesiveness, The bonding apparatus characterized by the above-mentioned is provided.
[0020]
The action and effect of the invention of claim 8 will be explained. Since the adhesive is solidified without heating by using a low-temperature adhesive, the bonded paper does not warp after drying. In addition, a desired coating method such as dot-like, linear, or solid coating can be adopted, the amount of coating can be easily adjusted, and the amount of adhesive used can be saved.
[0021]
According to the invention described in claim 9, in the invention described in any one of claims 1 to 8, there is provided means for spreading the adhesive on the upper surface of the second sheet. A bonding apparatus characterized by the above is provided.
[0022]
The action and effect of the invention of claim 9 will be explained. Although the adhesive is spread openly, it can be uniformly dispersed by applying pressure on the first and second sheets by applying an appropriate amount of adhesive. It is possible to obtain a good bonding state after saving.
[0023]
DETAILED DESCRIPTION OF THE INVENTION
Referring to the drawings, an embodiment of the present invention will be described below. In FIG. 1, a sheet laminate 12 is stored on a support base 10 (sheet storage means of the present invention) that can be raised and lowered. The sheet belongs to the category of so-called cardboard, and the basis weight range thereof is, for example, 500 g / m ^{2 to} 680 g / m ² , and is retained without impairing the plate form by suction by the suction cup 16 as described later. It has the rigidity that can be done. The size is, for example, in the range of 625 mm x 800 mm to 900 mm x 1200 mm, but this is a design matter, and it is easy to design that can be handled even if the size is outside this range. is there.
[0024]
A suction-type take-out mechanism 14 (the sheet take-out means of the present invention) is disposed above the sheet stack 12. The suction type take-out mechanism 14 includes a suction cup 16, and a plurality of suction cups 16 are provided at appropriate intervals so that the uppermost sheet in the laminate 12 can be sucked and held horizontally. The suction cup 16 is connected to the piston rod 20-1 of the air cylinder 20 through a support member 18, and the support member 18 can be moved up and down as indicated by arrows a1 and a2 by expansion and contraction of the piston rod 20-1. The main body of the air cylinder 20 can be moved horizontally back and forth as indicated by arrows b1 and b2 by a reciprocating mechanism such as another air cylinder (not shown).
[0025]
The belt conveyor 22 (the sheet conveying means of the present invention) conveys a single sheet P taken out by the suction type take-out mechanism 14 along a horizontal conveying path, and is between a pair of rollers 24A and 24B. Further, the conveyor belt 26 is circulated. As shown in FIG. 3, the conveyor belt 26 is composed of three divided belt members 26-1, 26-2, 26-3 in this embodiment, and a central belt member 26-1 and belt members on both sides. A gap is formed between 26-2 and 26-3. Further, as shown in FIG. 1, pressing rollers 27 and 27 'are appropriately arranged at intervals along the conveyance path by the belt conveyor 22, and these pressing roller pressing rollers 27 and 27' are provided on respective arms (not shown). It is provided at the free end so as to be rotatable, and achieves the role of pressing the sheet transported on the conveyor belt 26 against the upper surface of the conveyor belt 26 with a slight force by its own weight.
[0026]
The cold glue gun 28 (adhesive applying means of the present invention) is provided in the vicinity of the entrance of the belt conveyor 22 so as to face the upper surface of the conveyor belt 26. In this embodiment, the cold glue gun 28 has a width of the conveyor belt as shown in FIG. Four are provided at intervals in the direction. Each cold glue gun 28 is provided with a nozzle 28-1 at the lower end, and a low-temperature adhesive is ejected from the nozzle 28-1 toward the sheet P being transferred on the belt conveyor 22. FIG. 2 schematically shows an adhesive ejection pattern for the sheet P in this embodiment. On the upper surface of the sheet P transferred in the direction of arrow c on the belt conveyor 22, the sheet P Low temperature adhesive from four cold glue guns 28 spaced apart in the width direction (cold glue: mostly adhesive based on water-based emulsion synthetic resin and solidifies at room temperature without requiring heating ) Is applied intermittently. That is, the adhesive is sprayed from the cold glue gun 28 at four locations simultaneously in the width direction for a predetermined time (t1), and then the adhesive spray is stopped for a predetermined time (t2). As a result, in this example, the spread adhesive is applied to a single sheet P at 4 × 4 = 12 locations. The application time (t1) and the rest time (t2) are factors (adhesive factors for the adhesive application amount) that should be adapted so that the desired adhesive effect can be obtained under the use of the minimum necessary adhesive. It goes without saying that the application method of the adhesive is not limited to this example, and any application method of dot-like, linear or solid coating can be adopted. Further, in this embodiment, four cold glue guns 28 are provided in the width direction, but it goes without saying that this is also a suitable factor that can be adjusted as necessary.
[0027]
In FIG. 1, a stopper 30 (stopping means of the present invention) is provided in the vicinity of the roller 24B on the downstream side of the belt conveyor 22. The stopper 30 is composed of a thin plate material whose upper and lower ends are somewhat warped downstream in the conveyance direction of the sheet P. As shown in FIGS. 3 and 4, the stopper 30 is provided by a pivot 32 so as to be rotatable between an upright position in FIG. 4 and a horizontal position in FIG. 5. The mechanism for rotating the stopper 30 between the upright position (FIG. 4) and the horizontal position (FIG. 5) will be described. The stopper 30 welds the lug 34 to the opposite side of the contact surface with the sheet P. The stopper 30 can be rotated around the pivot 32 by inserting the pivot 32 into the lug 34. The air cylinder 36 for rotationally driving the stopper 30 has a piston rod 36-1 rotatably connected to the end of the lug 34 on the side away from the pivot 32 of the stopper 30 by a pin 37. Therefore, when the piston rod 36-1 is extended in the direction of the arrow k1 as shown in FIG. 4, the stopper 30 is rotated to the maximum in the clockwise direction (the direction opposite to the arrow d) in FIG. The sheet P can be brought upright and engaged with the sheet P transferred along the conveyance path, and the sheet P can be stopped at a predetermined position. When the piston rod 36-1 is contracted in the direction of the arrow k2 by changing the direction of the air pressure to the air cylinder 36, the stopper 30 rotates counterclockwise as shown by the arrow d, as shown in FIG. In addition, the stopper 30 takes a horizontal position, and the upper surface of the stopper 30 is flush with the transport path (or a position slightly depressed from the same position), and in this case, the sheet P is transported downstream in the transport path. It is designed not to be disturbed.
[0028]
In FIG. 1 again, a suction holding mechanism 40 (sheet holding means of the present invention) is provided above the downstream roller 24B of the belt conveyor 22. The suction holding mechanism 40 includes a suction cup 42, and a plurality of suction cups 42 are provided at appropriate intervals so that a single sheet P can be stably suctioned and held horizontally above the belt conveyor 22. The suction cup 42 is connected to the piston rod 46-1 of the air cylinder 46 through the support member 44, and the support member 44 can be moved up and down as indicated by arrows e1 and e2 by the expansion and contraction of the piston rod 46-1. The suction cup 42 cooperates with the air cylinder 46 to combine the first sheet held on the suction cup 42 with the second sheet coated with the adhesive on the conveyor belt 26. Configure.
[0029]
1 and 3, the sheet discharge means 48 achieves a function of sending the bonded sheets downstream, and includes a pusher 50 (a pressing member of the present invention). As shown in FIG. 3, the pusher 50 is rotatably installed in a gap formed between the central belt member 26-1 and the belt members 26-2 and 26-3 on both sides. As shown in FIG. 4, the pusher 50 has a plate shape, and a pressing lug 50-1 is welded to the lower surface thereof, and a support shaft 54 is freely inserted into the pressing lug 50-1, whereby the pusher 50 is supported. The pusher 50 has a tendency to rotate in the clockwise direction as shown in FIG. 4 due to the setting of the weight balance. 4), the pusher 50 and the pressing lug 50-1 integrated with the pusher 50 are connected to the conveyor belt 26 (belt members 26-1, 26-2, 26-3) as shown in FIG. ) Is slightly protruding from the upper surface. The inclination angle of the pusher 50 in the normal state is about 120 degrees with respect to the sheet transfer direction indicated by the arrow c. Therefore, the sheet P transferred on the conveyor belt 26 in the direction of the arrow c. On the other hand, the pusher 50 rotates counterclockwise around the support shaft 54 as indicated by an arrow f, and is level with the conveyance path as shown by an imaginary line 50 ′ (or from the same position). Therefore, the pusher 50 is smoothly rotated in the direction of arrow f by the engagement with the sheet P in the direction of arrow c on the conveyor belt 26, and the sheet by the belt conveyor 22. There is no hindrance to the transfer of P in the direction of arrow c. When the downstream end of the sheet P passes through the pusher 50, the pusher 50 naturally returns to the inclined position of the solid line rotated in the clockwise direction of FIG. 4 (the direction opposite to the arrow f) by the balance of the weight. Can do. As shown in FIG. 3, the support shaft 54 is inserted into the pressing lugs 50-1 on the lower surfaces of the pair of pushers 50 spaced in the width direction, and the support shaft 54 is loosely fitted to the upright portion 55-1 of the bracket 55. The bracket 55 is connected to the free end of the piston rod 56-1 of the air cylinder 56. Therefore, when the piston rod 56-1 is expanded and contracted as indicated by arrows g1 and g2, the pusher 50 (and the pressing lug 50-1 integrated therewith) can reciprocate in the same direction via the bracket 55 and the support shaft 54. it can.
[0030]
In FIG. 1, a pair of pressure rollers 60 </ b> A and 60 </ b> B (pressure means according to the present invention) are arranged in the vicinity of the downstream side of the stopper 30. The pressure rollers 60A and 60B pressurize the two sheets after bonding to bring them into close contact with each other. A pair of guide rollers 62A and 62B are disposed downstream of the pressure rollers 60A and 60B. The liftable support base 64 is installed to receive the bonding paper Q in a laminated state.
[0031]
Next, the operation of the bonding apparatus according to the embodiment of the present invention will be described. The suction cup 16 of the suction type take-out mechanism 14 is lowered from the upper retracted position as indicated by the arrow a1 by the extension of the piston rod 20-1, and the laminate When the piston rod 20-1 is pressed against the uppermost sheet P of the sheet 12 and contracts, the suction cup 16 lifts it up as indicated by an arrow a2. Next, the suction type take-out mechanism 14 is advanced as shown by an arrow b1 by a horizontal movement mechanism (not shown), and the front end of the sheet P held by the suction cup 16 is nipped between the pair of rollers 24A and 24B, and simultaneously or By releasing the suction by the suction cup 16 in advance, the sheet is transferred on the conveyor belt 26 as indicated by an arrow c. The sheet being transferred is indicated by P ′ in FIG. When the first sheet is transported in the transporting process of two adjacent sheets, the operation of the cold glue gun 28 is stopped.
[0032]
When the sheet P transferred on the conveyor belt 26 is engaged with the pusher 50, the pusher 50 is rotated to a horizontal position as indicated by an imaginary line 50 'in FIG. 4, but the sheet P completely pushes the pusher 50. If it passes, the pusher 50 is naturally returned to the inclined position of FIG. 4 by its weight. Then, as shown in FIG. 4, the sheet P is stopped at a predetermined position by engaging with the stopper 30 where the sheet P stands upright, and the belt conveyor 22 is stopped at the same time. The sheet stopped by engaging with the stopper 30 is indicated by P ″ in FIG. 1. The piston rod 46-1 of the air cylinder 46 of the suction holding mechanism 40 is extended in the direction of the arrow e1, and the conveying belt 26 The sucker 42 is engaged with the sheet stopped at a predetermined position on the upper side, and then the piston rod 46-1 is contracted in the direction of the arrow e2 so that the sheet is adsorbed to the sucker 42 and vertically upward. The sheet that is attracted to the suction cup 42 and once held (waiting) at a position spaced upward from the upper surface of the belt conveyor is denoted by P1 in FIGS.
[0033]
Next, the suction-type take-out mechanism 14 that has been waiting back in the direction of the arrow b2 starts to operate again, and lifts the second sheet P of the series of two sheets as described above ( The arrow a2) is fed to the rollers 24A and 24B (arrow b1), and is transferred on the belt conveyor 22 (arrow c direction). The cold glue gun 28 is driven this time, and the operation of ejecting the adhesive from the nozzle 28-1 for a predetermined time t1 and then stopping the predetermined t2 injection is repeated several times (four times in this embodiment). Therefore, as shown in FIG. 2, a 4 × 4 spread application portion G of the adhesive is formed on the upper surface of the second sheet P of the series of two sheets. This second sheet is represented by P2 in FIG. 4, and an adhesive application portion G on the upper surface of the second sheet P2 is also shown. Then, the second sheet P2 having the adhesive spreading portion G on the upper surface is stopped at a predetermined position by engaging with the stopper 30 standing upright. Then, the piston rod 46-1 of the air cylinder 46 of the suction holding mechanism 40 is extended, and the sheet P1 held by the suction cup 42 is moved vertically downward as indicated by an arrow e1, and the second sheet on the conveying belt is moved. The sheet P2 is united through the adhesive application part G.
[0034]
In this manner, with the series of two sheets P1 and P2 being combined via the adhesive application portion G, the piston rod 36-1 of the air cylinder 36 is contracted as indicated by the arrow k2 in FIG. The stopper plate 30 is rotated counterclockwise as shown by the arrow d to the horizontal state shown in FIG. Then, by switching the air pressure to the air cylinder 56 in FIG. 4, the piston rod 56-1 extends in the direction of the arrow g1, and the bracket 55 fixed to the tip of the piston rod 56-1 and the pushers 50 at both ends of the bracket 55. (And the pressing lug 50-1 as an integral part thereof) also moves (advances) in the same direction. As the pusher 50 moves forward, the pressure lug 50-1 is engaged with the rear ends of the two sheets P1 and P2 combined on the conveyor belt, as shown in FIG. The sheet is advanced beyond the horizontally positioned stopper 30, and finally the leading ends of the sheets P1 and P2 are nipped between the pressure rollers 60A and 60B in FIG. By being nipped between the pressure rollers 60A and 60B, the sheets P1 and P2 are pressure-bonded via an adhesive and become sticky paper. The adhesive is low-temperature adhesive, and the pressure rollers 60A and 60B are not equipped with a heater, and the sheet is not heated at all, so there is virtually no warping of the sheet after sticking. . The sticking paper Q for which the sticking process is completed is sequentially stacked as a laminate 66 on the support base 64 via the guide rollers 62A and 62B.
[0035]
In this way, one cycle process for laminating a series of two sheets is completed, the piston rod 36-1 of the air cylinder 36 extends in the direction of the arrow k1 in FIG. Returning to the standing position, the piston rod 56-1 of the air cylinder 56 contracts in the direction of the arrow g2, and the pusher 50 (the pressing lug 50-1 integrated therewith) is retracted to the initial position. It shifts to preparations for the start of the sheet pasting process.
[Brief description of the drawings]
FIG. 1 is an overall schematic view of a bonding apparatus according to the present invention.
FIG. 2 is a diagram schematically showing an application state of an adhesive on a sheet.
FIG. 3 is a schematic top view of the conveyor belt in the vicinity of the stopper.
4 is a cross-sectional view taken along the line IV-IV in FIG. 3, and shows a sheet positioning state by a stopper.
FIG. 5 is the same as FIG. 4, but shows a state in which the laminated sheet is being transferred by a pressing member.
[Explanation of symbols]
10 ... Support stand (sheet storage means)
12 ... Sheet laminate 14 ... Suction type take-out mechanism (sheet take-out means)
16 ... Suction cup 18 ... Supporting member 20 ... Air cylinder 22 ... Belt conveyor (sheet transport means)
26 ... Conveying belt 28 ... Cold glue gun (adhesive applying means)
30 ... Stopper 36 ... Stopper rotation driving air cylinder 40 ... Suction holding mechanism 46 ... Air cylinder (sheet-sheet combining means)
42 ... Suction cup 50 ... Pusher (sheet transport means)
54 ... Support shaft 56 ... Air cylinder
60A, 60B ... Pressure roller (Pressure means)
64: Support table that can be raised and lowered

Claims

A sheet storage means for storing a large number of sheets, a sheet take-out means for individually taking out the sheets from the sheet storage means, and a sheet for conveying the taken-out sheet along the conveyance path A sheet conveying means, a sheet holding means for temporarily holding the first sheet of the two sheets taken out of the series away from the conveying path, and 2 taken out in series Adhesive applying means for applying an adhesive onto the surface of the second sheet that is subsequently taken out of the sheets, and the first sheet to the second sheet Sheet combining means for combining through the application surface, sheet discharge means for discharging the combined sheet from the conveyance path, and sheet pressurizing means for pressing the discharged combined sheet The bonding apparatus characterized by comprising.

A sheet storage means for loading and storing a large number of sheets, a sheet take-out means for individually taking out the sheets from the sheet storage means, and the taken-out sheets along the transport path A belt conveyor for conveying; a sheet holding means for holding a first sheet of paper that has been previously taken out of the two sheets taken out of the series apart from the upper surface of the belt conveyor; Adhesive application means for applying an adhesive on the surface of the second sheet on the belt conveyor that is subsequently taken out of the two sheets taken out, and the first at a predetermined position in the transport path. Sheet merging means for merging the first and second sheets through the adhesive application surface by moving the sheet of paper with respect to the second sheet on the belt conveyor; A sheet discharging means for discharging the combined sheet from the belt conveyor, and the combined unit discharged Laminating apparatus being characterized in that comprising a sheet pressurizing means for pressurizing the leaf paper.

The bonding apparatus according to claim 1 or 2, wherein a stopper that can be raised and lowered is provided at a predetermined position in the conveyance path.

The bonding apparatus according to any one of claims 1 to 3, wherein the sheet take-out means or the sheet holding means or both hold the sheet in a suction manner.

A sheet storage means for loading and storing a large number of sheets, a suction-type take-out mechanism for individually taking out the sheets from the sheet storage means, and transporting the taken sheets along the transport path Sheet conveying means, an up-and-down stopper that stops the taken-out sheet at a predetermined position in the conveying path, and two sheets taken out in series. A suction holding mechanism for holding the first sheet above a predetermined position, and an adhesive on the surface of the second sheet subsequently taken out of the two sheets taken out in series. The first sheet and the second sheet by moving the first sheet held by the gun and the suction holding mechanism relative to the second sheet at the predetermined position. Sheet combining means for combining the sheets through the adhesive application surface, and conveying the combined sheets to the sheet Laminating apparatus being characterized in that comprising a sheet delivery means for discharging from the stage, and a sheet pressurizing means for pressurizing the discharged polymer sheet.

In the invention according to any one of claims 1 to 5, the sheet discharge means is provided in a transport path in front of the predetermined position, and the movement of the sheet toward the predetermined position on the transport path is as follows. After the sheet has passed without hindrance, a pressing member configured to be able to engage with the trailing edge of the sheet, and driving the pressing member downstream of the united sheet through the conveyance path And a means for transferring it to the side.

7. The application according to claim 1, wherein the sheet pressurizing and pressing means is a pair of pressurizing rollers installed in a conveyance path on a downstream side of the take-out device. Combined device.

In the invention as described in any one of Claim 1 to 7, the said adhesive agent is low temperature adhesiveness, The bonding apparatus characterized by the above-mentioned.

9. The bonding apparatus according to claim 1, further comprising means for spreading the adhesive on the upper surface of the second sheet.