JP2004330291A - Method and device for vacuum working by low pressurizing force using press apparatus - Google Patents

Method and device for vacuum working by low pressurizing force using press apparatus Download PDF

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JP2004330291A
JP2004330291A JP2003133464A JP2003133464A JP2004330291A JP 2004330291 A JP2004330291 A JP 2004330291A JP 2003133464 A JP2003133464 A JP 2003133464A JP 2003133464 A JP2003133464 A JP 2003133464A JP 2004330291 A JP2004330291 A JP 2004330291A
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cylinder
mounting plate
plate
low
frame
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JP4345083B2 (en
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Hidetoshi Ito
英敏 伊藤
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MIKADO TECHNOS KK
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MIKADO TECHNOS KK
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Abstract

<P>PROBLEM TO BE SOLVED: To propose a vacuum working method and its device by low pressurizing force by which the adjustment and control of delicate pressing force are made possible by removing all of a movable frame body, of cource, for forming compartments, a push plate and a heater for performing thermal pressurization to an article to be worked, the weight of their mounts, the pressure of outside air which is applied to compartments by evacuation or the like and allowing only the thrust of the exclusive low pressurizing cylinder for low pressurization to be used without applying unnecessary pressurization at all. <P>SOLUTION: By allowing only low thrust of a low pressurizing cylinder to be imparted to a material to be worked by balancing so that dead weights under vacuum of members for forming compartments, off course, each member for pressurizing such as push plate for performing thermal pressurization are negated with the exclusive cylinder applying back pressure or a spring which is imparted with supporting force corresponding to their weight under the vacuum, working by pushing force of delicate extra-low pressurization working by switching the extra-low pressurization and high pressurization are possible without applying the pressurizing force higher than required to the material to be worked. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
本発明は、プレス装置の作動により隔室を形成し、隔室内を真空にして所定の加圧加工を行なう装置において、被加工物に対し必要以上の圧力をかけることなく、微妙な極く低加圧の押し力で加工することが可能な真空加工方法と装置に関するものである。
【0002】
【従来の技術】
従来、プレス装置を用いた真空加工装置では、プレス装置の作動により真空隔室を形成させてプレス加圧加工するため、隔室を形成する際の上側外壁部材や上側加圧加工部材(シリンダロッドやヒータ付き押し型及びその関連部材等)の重量ならびに隔室内の真空引きによる上側外壁部材への真空による外気差圧加重など、プレス加圧以外の加圧力が付加されるため、高加圧用途に適したものとなっている。
【0003】
しかし、液晶ディスプレーなどの薄ガラス製品、セラミックスグリーンシートなどの薄軟質シート製品、フィルムコンデンサなどの蒸着薄膜フィルム製品、ICカードなどの素子チップ入りプリント回路基板製品などへの積層貼り合わせでは、亀裂破壊や性能障害、厚み寸法の不均一等の問題が生じやすく、被加工物に対して必要以上の圧力をかけることが嫌われる。さらに、接着剤を加熱溶融するまでは、接着剤の溶融はみ出しの防止や、熱の均等拡散、脱気待機等のため、低圧加圧する必要のあるものも多い。
【0004】
それに対して、本出願人の提案にかかる特開2002−96199号公報のように、別の方向から押し圧をかけて、それらの荷重を軽減する方法があるが、この方法では隔室を形成するための上側外壁部材や上側加圧加工部材を上下動する加圧用シリンダは、これらの部材重量以上の高推力を必要としていて、上記のように被加工物に対して必要以上の圧力をかけることなく、微妙な極く低加圧の押し力で加圧加工することはできない。
【0005】
【発明が解決しようとする課題】
本発明は、隔室を形成するための移動枠体は勿論のこと、被加工品に対して熱加圧を行なう押し板やヒータ、それらの取付板等の重量、真空引きにより隔室にかかる外気圧力などの全てを取り去り、不要な加圧を全くかけることなく、低加圧専用の低推力シリンダの推力のみを使用することができるようにして、微妙な押し力の調節制御を行なうことができるようにした低加圧力による真空加工方法と装置を提案するものである。
【0006】
【課題を解決するための手段】
即ち、本発明は隔室を形成する部材は勿論のこと、加熱加圧するための押し板等の加圧用各部材の真空下での自重(重量)も、背圧をかけた専用のシリンダあるいはそれら自重に見合う支持力を付与したスプリングにより打ち消すことにより、低加圧用シリンダの低推力のみが被加工品に付与されるようにし、従来装置では困難であったチップ入りICカード、薄蒸着膜コンデンサーフィルム、薄ガラス液晶ディスプレー、軟質セラミックスグリーンシート等の積層貼り合わせのように、亀裂破損や性能障害、厚み寸法の不均一、接着剤のはみ出しなどを嫌う被加工物に対して、必要以上の加圧力をかけることなく、微妙な極く低加圧の押し力で加工することができ、極低推力の加圧力をもデジタル表示制御することを可能としたものである。
以下、本発明の実施態様を図により詳細に説明する。
【0007】
【発明の実施の形態】
実施例1.
図1〜5は本発明方法を実施するための装置全体の一例を示す正面説明図とその作用説明図であり、1は基台2上の四隅に立設されたガイドポスト3頭部に水平に設けられた支持フレーム4上に下向きに取付けられた引上げ用シリンダで、該シリンダ1上にはそのピストンロッド5を同じくするようにしてバランス用シリンダ6、さらにその上に低加圧用シリンダ7とが順次直列して設けられ、径の異なる大中小の3個のシリンダが上下逆に積重ねられている。なお、図ではこの3個直列のシリンダのロッドは互いに直列固定の状態にしてあるが、軸心を同じくして連結していればよく、また大中小3個のシリンダ1、6、7は必ずしも図のように下から大中小の関係だけに限られるものではない。
【0008】
8は基台2下側に配置された隔室形成用の上向きの押上げシリンダで、上記した上方の直列シリンダ1、6、7とその軸心を同じくし、そのロッド9先端を基台2下面に固定して、該ロッド9の伸縮により該押上げシリンダ8自体が上下動するようになっている。この押上げシリンダ8は後記する摺動枠体20を上昇させることにより、下固定枠12と上移動枠19との外周面に同時に密着して、内側を真空とすることができる隔室26を形成するようになっている。
【0009】
10は被加工品25を載せる受け台で、基台2上に浮設固定され、下ヒータ11を内蔵している。この受け台10の外側にも若干の間隔を置いて該受け台10を取り囲むように平面方形(または円形)をなす筒型の下固定枠(下枠)12が基台2上に立設固定してあり、該下枠12は後記する真空隔室26の下半部を構成することとなり、その上端縁は受け台10の上面位置とほぼ合致するかそれよりやや上方又は下方に位置する。
【0010】
13は四隅に前記ガイドポスト3が貫挿されて該ポスト3に沿って上下摺動自在の水平な取付板で、該取付板12の中心部には前記した下向きの直列シリンダ1、6、7のロッド5下端に下方へ向けて突出固定したシャンク(連結具)14が摺動自在に挿通され、該シャンク14下端は上記取付板13の下側中央部に配置された支持板15の上面中心部に固定してあり、取付板13はその下面を支持板15に支持されることによりロッド5に吊持されて上下移動可能となっている。
【0011】
16は上記支持板15下面から垂設固定された複数本の支持杆17下端に上ヒータ板18を介して取付けられた水平な押し板で、該押し板16は下方の前記受け台10と対面している。
【0012】
19は上記押し板16を若干の間隔を置いて取り囲むように上記取付板13下面に垂設固定された上移動枠(上枠)で、該上枠19は前記した基台2上の下固定枠(下枠)12と合致する形状と大きさを有する筒型をなし、その下端縁は通常は押し板16下面より下方に位置している。
【0013】
20は下固定枠12外周面に密に上下摺動自在に嵌装された筒型の摺動枠体で、該枠体20は前記した基台2下側の押上げシリンダ8の駆動により上下動するようになっている。即ち、例えばこの摺動枠体20は図示のようにその下縁外周に外向きつば20aが形成されていて、この外向きつば20aは押上げシリンダ8に水平に取付けられた押上げ板21と複数本の連結杆22を介して連結固定され、該シリンダ8のロッド9の伸縮によって該シリンダ8とともに摺動枠体20は上下動する。
【0014】
23は上記取り付け板3の板面の一部に加工した空気吸引孔で、該吸引孔23は真空ポンプ(図示せず)に接続され、後記するように隔室26が形成されたときに、該隔室26内の空気を吸引して高真空の隔室26を形成するためのものであり、この吸引孔23は取り付け板3に限られず、隔室26を形成する基台2、上枠19又は下枠12のいずれかに設けてもよい。
【0015】
24は隔室26の気密性を高めるために、下枠12と基台2、上枠19と取り付け板13の接触面や摺動枠体20の摺動面、シャンク14の取付板13への貫挿部分等に設けたOリング等のシールパッキンである。
【0016】
ところで、支持フレーム4上の大中小3段直列式のシリンダ1、6、7のうち、大シリンダである引上げ用シリンダ1は主に所定の真空加工を行った後に、取付板13、上移動枠19及びヒータ18付き押し板16を含む上側移動部分の全体重量を引上げるために使用されるものであり、かかる引上げ力以上の出力を格別有していなくともよい。
【0017】
また、小シリンダの加圧用シリンダ7は、隔室26内が高真空となった後、押し板16を押し下げて、もっぱら受け台10上の被加工品25に対して低加圧力で加熱加圧するために使用される。
【0018】
そして、中シリンダのバランス用シリンダ6は、上移動枠19内で上下移動可能な部分、即ち支持板15及びこれに吊持された支持杆17、上ヒータ18付き押し板16、ならびにシリンダロッド5及びシャンク14の重量、更にシャンク14面にかかる真空吸引加重等の合計重量と同等又はそれより若干吊り上げ方向に出力するように常に背圧がかけられていて、上記した合計重量対象物とバランスを取っており、上記低加圧用シリンダ7が出力するわずかな加圧力をそのまま実現することができるようになっている。
【0019】
しかして、例えば薄ガラス液晶ディスプレイ、軟質セラミックスグリーンシート、薄蒸着膜コンデンサフィルム、素子入りICカードなど、亀裂破壊や性能障害、厚み寸法の不均一、接着剤のはみ出し等を嫌う製品の真空下での加熱密着積層貼り合わせ等を行う場合、それら被加工品25を受け台10上に載置したら、まず下方の押上げシリンダ8が作動してそのロッド9を引っ込めることにより、連結杆22を介して摺動枠体20を下固定枠12外周面を摺動しながら上昇させて行き、その上方が上移動枠19外周面に接し、更に少しく上昇させて上・下両枠19、12間が該摺動枠体20により完全に閉塞されるようにし、これにより上方の取付板13、下方の基台2、上・下両枠19、12及び摺動枠体20とにより囲まれる隔室26が形成される(図2)。
【0020】
そこで、バランス用シリンダ6には背圧をかけたままで、引上げ用シリンダ5と加圧用シリンダ7を開放し、同時に真空ポンプ(図示せず)により取付板13の吸引孔23から隔室26内の真空引きを行い、これにより上移動枠19を取付板13と共にその自重とあいまって吸引降下させ、上移動枠19下端を下固定枠12上端に圧接させる(図3)。なお、バランス用シリンダ6には下方からの空気吹き込みが行われているが、このシリンダ6には前記の通り上移動枠19より内側のヒータ付き押し板16やその指示板15等の上移動枠19とは別個に上下動可能な部分全体を支持し得る出力しか付与されていないので、上移動枠19とその取付板13の自重を保持することはできず、真空引き力とあいまって全体が降下することとなる。このときのバランス用シリンダ6は適度に排気して均一な内部圧力を保っている。
【0021】
上移動枠19の下固定枠12への圧接により、真空引きしている隔室26内は高真空となって行き、被加工品25中の気泡は脱気されるが、押し板16はこの段階では未だ被加工品25には接触していない(図3)。
【0022】
そこで、次に引上げ用シリンダ1は開放状態のままで、上方の小さな低加圧用シリンダ7を駆動し、取付板13下側の指示板15をバランス用シリンダ6の背圧に抗して押し下げることにより、押し板16を被加工品25に接触させて、低押し力により加熱加圧を行うのである(図4)。このとき、押し板16やその支持板15等の自重は上記の如くバランス用シリンダ6により支持されているので、それらの自重は被加工品25に対しては全く加重されず、加圧用シリンダ7の推力だけがかかることになるので、該加圧用シリンダ7の選択により、被加工品25に対して極めて低加圧の加圧も可能となる。
【0023】
上記のようにして被加工品25に対する低押し力によるフィルム貼り付け等の加熱加圧が完了したら、吸引孔23からの真空引きを停止して、隔室26内を直ちに大気圧に戻し、また下方の押上げシリンダ8を逆作動させて、そのロッド9を伸張させることにより、摺動枠体20を摺動降下させ、元位置に戻す。また同時に、上方の低加圧用シリンダ7を開放する共に、引上げ用シリンダ1を駆動させて、支持版15を介して取付版3、押し板16等と共に引上げて行き(図5参照)、図1に示す元位置に復帰させるのである。
【0024】
このように、引上げ用シリンダ1は主に上側移動部分全体の重量を引上げるためのものとして使用されるが、被加工品25によっては、加圧用シリンダ7による低圧加熱後に大推力で加圧加工する必要がある場合もあり、この場合には引上げ用シリンダ1を押し下げ方向に駆動するようにする。
【0025】
この実施例によれば、上側移動部分全体を上方の引上げ用シリンダ1、バランス用シリンダ6、低加圧用シリンダ7の大中小3個の上下直列したシリンダにより吊持し、上移動枠19内側で別個に駆動されるヒータ付き押し板16やその支持板15等の加圧用各部材の重量はバランス用シリンダ6への背圧により常に支持していてバランスさせているので、低加圧用シリンダ6による加圧の際に被加工品25に対して極く低加圧での加熱加圧が可能となるのである。
【0026】
実施例2.
図6〜7は、実施例1におけるバランス用シリンダ6の使用に代わり、スプリングを用いて上移動枠19内側で別駆動される加圧用各部材の全体重量を打ち消すようにバランスをとった装置の説明図である。
【0027】
即ち、27は取付板13及びその下側の支持板15とを上下に摺動自在に貫挿する複数本(例えば方形の支持板15の四隅に各1本づつ)の抜け出し不能のガイド軸で、該ガイド軸27の取付板13より上側部分には圧縮コイルスプリング28が巻装され、該スプリング28はヒータ18付き押し板16及びこれを吊持する支持板13並びにシリンダロッド5及びシャンク14の合計重量と同等又はそれより若干大きな弾発支持力が付与されていて、支持板15が常に取付板13下面に接するように賦勢されている。
【0028】
そこで、実施例1と同様に、押上げシリンダ8の駆動により摺動枠体20を所定位置まで上昇させて隔室26を形成したら、空気吸引孔23より真空引きを開始し、上下直列の引上げ用シリンダ1と低加圧用シリンダ7を開放して、真空引き力と自重により上移動枠19を下固定枠12上に降下突合させた後、低加圧用シリンダ7のみを駆動させて、スプリング28に抗して支持板15を押し下げることによりヒータ18付き押し板16を受け台10上の被加工品25に接触させて低加圧で加熱加圧するのである(図7)。
【0029】
この場合も、実施例1におけるバランス用シリンダ6の作用と同様に、取付板13と支持板15とをつなぐガイド軸27に巻装した圧縮コイルスプリング28に上移動枠19内の押し板16等の加圧用各部材の真空下での重量に見合う支持力が付与されているので、それらの自重が被加工品25にかかることはないから、加圧用シリンダ7の低推力のみが被加工品25に付与されることとなる。
【0030】
そして、被加工品25に対する所定の低圧加熱加工が終了したら、真空隔室26内を大気圧に戻し、摺動枠体20を降下させ、加圧用シリンダ7を開放すると共に、引上げ用シリンダ1を駆動させて支持板15を介して取付板13を押し板16等と共に引上げて行き、元位置(図6)に復帰させる。
【0031】
実施例3.
上記実施例1〜2は、主に温度350〜400℃の高温で被加工品を加熱加圧することを企図し、気密性保持のためのシールパッキン24は隔室26内には臨ませないようにして、隔室26の形成を摺動枠体20の上昇により行なわせているが、温度200℃以下の比較的低温下で真空加工する場合には、シールパッキンも耐えるので、摺動枠体20を用いることなく(従って押上げシリンダ8や下固定枠12も不要となる)、上移動枠19を受け台10外周部に直接密着させて隔室26を形成することも可能である。
【0032】
そこで、図8〜10はかかる第3実施例を図示している。即ち、図8において29は取付板13より上側部分の各ガイドポスト3に巻装した圧縮コイルスプリングで、該スプリング29は取付板13を常に下方へ押圧して該取付板13下面に垂設固定された上移動枠19下端を受け台10上面外周部に圧接させると共にその外周部の段部側面に一周するように設けたシールパッキン40に接するように賦勢されている。
【0033】
しかして、先ず引上げ用シリンダ1を作動させ、上記スプリング29に抗して支持板15を介して取付板13を引上げ、上移動枠19下端を受け台10から離間させ、被加工品25を受け台10面にセットする(図8)。
【0034】
次に、引上げ用シリンダ1を開放する。これにより、上記スプリング29圧と取付板13を含む上側移動部分全体の自重で上移動枠19が降下し、その下端が受け台10の上面外周部に当圧し、上移動枠19内側に隔室26が形成されるので、直ちに取付板13の空気吸引孔23から真空引きを行なう(図9)。
【0035】
隔室26内が高真空となったら、次に低加圧用シリンダ7を作動させ、取付板13に貫挿したガイド軸27に巻装する圧縮コイルスプリング28に抗して支持板15を押下げ、ヒータ付き押し板16を被加工品25に接触させて低圧で加熱加圧するのである(図10)。
【0036】
なお、上記スプリング28の弾発力は上移動枠19内側にある押し板16を含む加圧用各部材全体の真空下での重量とほぼバランスをとっていることは、前記実施例2と同様である。
【0037】
このようにして、真空下で被加工品25に対し低加圧の加熱加圧による加工が完了したら、吸引口23からの真空引きを止めて、隔室26内を大気圧に戻し、しかる後に加圧用シリンダ7は開放して、前記したように引上げ用シリンダ1を作動させてスプリング29に抗して取付板13を元位置(図8)まで引上げるのである。
【0038】
実施例4.
図11は、前記実施例2(図6参照)の装置の変形例を示すもので、基台2下方のシリンダ8を実施例2とは異なって引下げ用シリンダとし、連結杆22を長くとって、摺動枠体20をあらかじめ上移動枠19外周面に接するように押し上げておき、隔室26を形成する際に該シリンダ8を駆動して摺動枠体20を引下げ、上移動枠19と下固定枠2とにまたがるようにしたものであり、作用効果上は実施例2とは変らない。
【0039】
なお、図8〜11では、ガイドポスト3の取付板13より上側部分には、実施例3と同様のスプリング29が巻装してあるが、これは引上げ用シリンダ1に抗して取付板14を押し下げ方向に賦勢しているもので、必ずしも必要なものではない。
【0040】
実施例5.
図12は、実施例1(図1)の装置の変形例を示すもので、実施例1とは上下逆に、隔室26を形成する枠体は摺動枠体を兼ねる下移動枠30と上固定枠31とにより構成され、両枠30,31の圧接嵌合により隔室26を形成するようになっており、この下移動枠30は受け台10外周面を上下摺動自在に構成されている。
【0041】
また、フレーム上にはバランス用シリンダ6と低加圧用シリンダ7とが上下直列して設けられ、そのロッド5下端はフレーム4下側に水平に固定された取付板13を貫挿して、ヒータ付き押し板16を支持するために該取付板13下側に配置された上下動可能な支持板15に固定されている。
【0042】
バランス用シリンダ6は上固定枠31内側のヒータ付き押し板16やその支持板13等の加圧用各部材に自重に見合う支持力を付与されてバランスをとるように常時背圧がかけられていることは実施例1と同様である。
【0043】
しかして、下移動枠30の上昇により隔室26が形成されたら、吸引孔23からの真空引きと共に低加圧用シリンダ7の駆動により、支持板15を介して押し板16を降下させ、所定の低推力で被加工品25に対して加熱加圧を行うのである。
【0044】
従って、この実施例においても、押し板16により被加工品25を加熱加圧する際には、低加圧用シリンダ7の推力以外に荷重がかかることはないのである。
【0045】
実施例6.
図13は、本発明の更に他の実施例として、真空下での無酸化電気溶接を行なう場合を示している。例えば2枚の金属片32a、32bを電気溶接する場合、両金属片を面接触させて大電流を通し接触面の電気抵抗による発熱で両者を溶接するいわゆる交流抵抗溶接では、大推力で加圧しても問題はないが、直流スポット溶接、即ち金属片の一方32aにあらかじめプレス等により突起(プロジェクション)32cを形成しておき、コンデンサに蓄えた直流電流をこの突起に集中させるようにして上下電極内に放電することにより、この突起を溶融させて接合する場合には、放電の際に大推力で加圧すると上記突起が放電前に潰されてしまい、うまく溶融接合させることできない。
【0046】
そこで、図13に示す実施例では、真空下において初期の通電の際には低加圧用シリンダ7により両金属片32a,32bを軽く加圧しながら突起32cを溶融溶着させ,しかる後に大シリンダ1の推力を利用して両金属片が密着するように強圧するのである。
【0047】
同図中、33は支持板15に適当な部材を介して垂設固定された上電極(例えばブラス側)、34は上電極15に上下対面するように受け台10上に設置固定された下電極(マイナス側)であり、2枚の金属片32a,32bは上電極33の降下により両電極33,34間に挟持される。
【0048】
なお、図では、上移動枠19は取付板13と共に降下すると受け台10外周部上面に設けられた下固定枠12と互いに圧接嵌合することにより隔室26が形成されるようにした例を示しているが、隔室26形成手段として、前記実施例1(図1)及び実施例2(図6)、実施例4(図11)に示したような摺動枠体20を使用するものや、実施例3(図8)のように上移動枠19が直接受け台10上面外周部に嵌合するようしたもの、あるいは実施例5(図12)のように上固定枠31に対して下移動枠30が上昇して嵌合するように構成してもよいことは勿論である。
【0049】
【発明の効果】
本発明は上述のようにしてなり、受け台上の被加工品に対しては、隔室を形成する部材は勿論のこと、加熱加圧するための押し板等の加圧用各部材の真空下での自重も、背圧をかけた専用のシリンダあるいはそれら自重に見合う支持力を付与したスプリングにより打ち消しているので、低加圧用シリンダの低推力のみが被加工品に付与されることとなり、従来装置では不可能であったチップ入りICカード、薄蒸着膜コンデンサーフィルム、薄ガラス液晶ディスプレー、軟質セラミックスグリーンシート等の積層貼り合わせのように、亀裂破損や性能障害、厚み寸法の不均一、接着剤のはみ出しなどを嫌う被加工物に対して、必要以上の圧力をかけることなく、微妙な極く低加圧の押し力で加工することができ、極低推力の加圧力をもデジタル表示制御することが可能となるのである。
【図面の簡単な説明】
【図1】本発明方法を実施するための装置全体の一例を示す正面説明図である。
【図2】図1の装置の作用説明図である。
【図3】図1の装置の作用説明図である。
【図4】図1の装置の作用説明図である。
【図5】図1の装置の作用説明図である。
【図6】本発明装置の他の実施例を示す装置の正面説明図である。
【図7】図6に示す装置の作用説明図である。
【図8】本発明装置の更に他の実施例を示す装置の正面説明図である。
【図9】本発明装置の他の実施例を示す装置の正面説明図である。
【図10】本発明装置の他の実施例を示す装置の正面説明図である。
【図11】本発明装置の他の実施例を示す装置の正面説明図である。
【図12】本発明装置の他の実施例を示す装置の正面説明図である。
【図13】本発明装置の他の実施例を示す装置の正面説明図である。
【符号の説明】
1−引上げ用シリンダ
2−基台
3−ガイドポスト
4−支持フレーム
5−ピストンロッド
6−バランス用シリンダ
7−加圧用シリンダ
8−押上げシリンダ
9−ロッド
10−受け台
11−下ヒータ
12−下固定枠
13−取付板
14−シャンク
15−支持板
16−押し板
17−支持杆
18−上ヒータ
19−上移動枠
20−摺動枠体
21−押上げ板
22−連結杆
23−空気吸引孔
24−シールパッキン
25−被加工物
26−隔室
27−ガイド軸
28−スプリング
29−スプリング
30−下移動枠
31−上固定枠
32−金属片
33−上電極
34−下電極
40−シールパッキン
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention is directed to a device for forming a compartment by operating a press device, performing a predetermined pressure process by evacuating the compartment, and applying undue pressure to a workpiece without delicate extremely low pressure. The present invention relates to a vacuum processing method and apparatus capable of processing with a pressing force.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, in a vacuum processing apparatus using a pressing device, an upper outer wall member or an upper pressing member (cylinder rod) for forming a chamber is used to form a vacuum chamber by press operation and press-press work. Pressure and other related components), and the external pressure applied by vacuum to the upper outer wall member due to the evacuation of the compartments. It is suitable for
[0003]
However, when laminating to thin glass products such as liquid crystal displays, thin soft sheet products such as ceramic green sheets, vapor-deposited thin film products such as film capacitors, and printed circuit board products containing element chips such as IC cards, cracks are destroyed. It is easy to cause problems such as performance problems, unevenness in thickness dimensions, and the like, and dislike applying excessive pressure to the workpiece. Further, until the adhesive is heated and melted, it is often necessary to apply a low pressure to prevent the adhesive from melting out, to spread the heat evenly, and to wait for deaeration.
[0004]
On the other hand, as disclosed in Japanese Patent Application Laid-Open No. 2002-96199 proposed by the present applicant, there is a method in which a pressing force is applied from another direction to reduce those loads. The pressurizing cylinder that moves the upper outer wall member and the upper pressurizing member to move up and down requires a high thrust greater than the weight of these members, and applies excessive pressure to the workpiece as described above. Without it, it is impossible to perform pressure processing with a delicate and extremely low pressing force.
[0005]
[Problems to be solved by the invention]
According to the present invention, not only the moving frame for forming the compartment, but also the weight of the push plate and the heater for applying heat pressure to the workpiece, the mounting plate thereof, etc., and the compartment is applied to the compartment by evacuation. It is possible to remove all the external air pressure and so on, and to use only the thrust of the low thrust cylinder dedicated to low pressurization without applying unnecessary pressurization at all. An object of the present invention is to provide a vacuum processing method and apparatus using a low pressing force.
[0006]
[Means for Solving the Problems]
That is, according to the present invention, not only the members forming the compartments, but also the weight (weight) of each of the pressing members such as the pressing plate for heating and pressing under vacuum can be reduced by a dedicated cylinder or a cylinder with a back pressure. By counteracting the low thrust of the low pressure cylinder to the workpiece by counteracting it with a spring that has a supporting force corresponding to its own weight, IC chips with thin chips, thin film capacitor films that were difficult with conventional devices Unnecessary pressing force for workpieces that do not like crack breakage, performance obstacles, uneven thickness, adhesive protrusion, etc., such as lamination of thin glass liquid crystal displays, soft ceramic green sheets, etc. Processing can be performed with a delicate and extremely low pressing force without applying pressure, and it is possible to digitally control the pressing force with extremely low thrust.
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
Embodiment 1 FIG.
1 to 5 are a front view and an operation view showing an example of the whole apparatus for carrying out the method of the present invention. A lifting cylinder mounted downward on a support frame 4 provided on the cylinder 1, a balancing cylinder 6 on the cylinder 1 in the same manner as the piston rod 5, and a low-pressure cylinder 7 on the balancing cylinder 6. Are sequentially provided in series, and three large, medium, and small cylinders having different diameters are stacked upside down. In the drawing, the rods of the three cylinders in series are fixed in series with each other, but they may be connected with the same axis, and the three cylinders 1, 6, 7 are not necessarily large. As shown in the figure, the relationship is not limited only to the large, medium, and small relationships from the bottom.
[0008]
Numeral 8 denotes an upward push-up cylinder for forming a compartment arranged below the base 2, which has the same axial center as the above-mentioned series cylinders 1, 6, 7 above, and the tip of the rod 9 is attached to the base 2 The push-up cylinder 8 itself is vertically moved by the expansion and contraction of the rod 9 fixed to the lower surface. The lifting cylinder 8 raises a sliding frame body 20 to be described later, thereby simultaneously adhering to the outer peripheral surfaces of the lower fixed frame 12 and the upper moving frame 19, thereby forming a compartment 26 in which the inside can be evacuated. Is formed.
[0009]
Reference numeral 10 denotes a receiving stand on which a workpiece 25 is placed, which is fixed on the base 2 by being floated, and has a built-in lower heater 11. A cylindrical lower fixing frame (lower frame) 12 having a flat rectangular shape (or a circular shape) is formed on the base 2 so as to surround the receiving stand 10 at a slight interval outside the receiving stand 10. The lower frame 12 constitutes a lower half of the vacuum chamber 26 described later, and its upper end edge substantially coincides with the upper surface position of the cradle 10 or is located slightly above or below.
[0010]
Reference numeral 13 denotes a horizontal mounting plate through which the guide post 3 is inserted at four corners and which is slidable up and down along the post 3. The downwardly directed series cylinders 1, 6, and 7 are provided at the center of the mounting plate 12. A shank (connecting tool) 14 protruding downward and fixed downward is slidably inserted into the lower end of the rod 5, and the lower end of the shank 14 is located at the center of the upper surface of a support plate 15 disposed at the lower central portion of the mounting plate 13. The mounting plate 13 is suspended by the rod 5 by supporting the lower surface of the mounting plate 13 by the support plate 15 and can be moved up and down.
[0011]
Reference numeral 16 denotes a horizontal push plate which is attached to the lower ends of a plurality of support rods 17 which are vertically fixed from the lower surface of the support plate 15 via an upper heater plate 18. The push plate 16 faces the lower receiving table 10 below. are doing.
[0012]
Reference numeral 19 denotes an upper moving frame (upper frame) which is vertically fixed to the lower surface of the mounting plate 13 so as to surround the pressing plate 16 at a slight interval. It has a cylindrical shape having a shape and size corresponding to the frame (lower frame) 12, and its lower edge is usually located below the lower surface of the push plate 16.
[0013]
Reference numeral 20 denotes a cylindrical sliding frame which is fitted on the outer peripheral surface of the lower fixed frame 12 so as to be vertically slidable. The frame 20 is moved up and down by driving the push-up cylinder 8 below the base 2. It works. That is, for example, the sliding frame body 20 is formed with an outward flange 20a on the outer periphery of the lower edge thereof as shown in the figure, and the outward flange 20a is connected to a push-up plate 21 horizontally attached to the push-up cylinder 8. It is connected and fixed via a plurality of connecting rods 22, and the sliding frame 20 moves up and down together with the cylinder 8 by the expansion and contraction of the rod 9 of the cylinder 8.
[0014]
Reference numeral 23 denotes an air suction hole formed in a part of the plate surface of the mounting plate 3. The suction hole 23 is connected to a vacuum pump (not shown), and when a compartment 26 is formed as described later, The suction holes 23 are not limited to the mounting plate 3, and the base 2 and the upper frame that form the compartment 26 are for sucking the air in the compartment 26 to form the high vacuum compartment 26. 19 or the lower frame 12.
[0015]
Reference numeral 24 denotes a contact surface between the lower frame 12 and the base 2, a contact surface between the upper frame 19 and the mounting plate 13, a sliding surface of the sliding frame 20, and the shank 14 on the mounting plate 13 in order to enhance the airtightness of the compartment 26. This is a seal packing such as an O-ring provided at a penetrating portion or the like.
[0016]
By the way, among the large, medium and small three-stage in-line type cylinders 1, 6, and 7 on the support frame 4, the lifting cylinder 1 which is a large cylinder is mainly subjected to a predetermined vacuum processing, and then the mounting plate 13 and the upper moving frame. It is used to raise the overall weight of the upper moving part including the push plate 16 with the heater 19 and the heater 18, and it is not necessary to have an output higher than the pulling force.
[0017]
Further, the pressurizing cylinder 7 of the small cylinder presses down the push plate 16 after the inside of the compartment 26 becomes high vacuum, and heats and presses the work 25 on the cradle 10 with a low pressing force. Used for
[0018]
The balance cylinder 6 of the middle cylinder is provided with a vertically movable part in the upper moving frame 19, namely, the support plate 15 and the support rod 17 suspended therefrom, the push plate 16 with the upper heater 18, and the cylinder rod 5. And the weight of the shank 14, furthermore, the back pressure is always applied so as to output in the lifting direction equal to or slightly less than the total weight of the vacuum suction load applied to the surface of the shank 14, so that the balance with the above total weight object is balanced. In this way, the slight pressurizing force output from the low pressurizing cylinder 7 can be realized as it is.
[0019]
Therefore, for example, under the vacuum of products that dislike crack breakage, performance failure, uneven thickness, adhesive protrusion, etc., such as thin glass liquid crystal displays, soft ceramic green sheets, thin deposited film capacitor films, and IC cards with elements. For example, when the workpieces 25 are placed on the receiving table 10, the lower push-up cylinder 8 is operated to retract the rod 9, so that the workpiece 25 is connected to the connecting rod 22. The sliding frame body 20 is lifted while sliding on the outer peripheral surface of the lower fixed frame 12, and the upper portion thereof comes into contact with the outer peripheral surface of the upper moving frame 19, and is further raised slightly so that the space between the upper and lower frames 19, 12 is lowered. The sliding frame 20 is completely closed, so that the upper mounting plate 13, the lower base 2, the upper and lower frames 19 and 12, and the compartment 26 surrounded by the sliding frame 20. It is formed (FIG. 2).
[0020]
Then, while the back pressure is applied to the balancing cylinder 6, the lifting cylinder 5 and the pressurizing cylinder 7 are opened, and at the same time, a vacuum pump (not shown) is used to move the suction cylinder 23 from the suction hole 23 of the mounting plate 13 into the compartment 26. A vacuum is drawn, whereby the upper moving frame 19 is sucked down together with its own weight together with the mounting plate 13, and the lower end of the upper moving frame 19 is pressed against the upper end of the lower fixed frame 12 (FIG. 3). Although air is blown into the balance cylinder 6 from below, the cylinder 6 has an upper moving frame such as a push plate 16 with a heater and its indicating plate 15 inside the upper moving frame 19 as described above. Since only an output capable of supporting the entire vertically movable portion separately from the upper moving frame 19 is provided, the weight of the upper moving frame 19 and its mounting plate 13 cannot be held, and the entire structure is combined with the vacuum pulling force. It will descend. At this time, the balancing cylinder 6 is appropriately evacuated to maintain a uniform internal pressure.
[0021]
By pressing the upper moving frame 19 against the lower fixed frame 12, the inside of the evacuated compartment 26 becomes a high vacuum, and the air bubbles in the workpiece 25 are degassed. At this stage, the workpiece 25 has not yet contacted (FIG. 3).
[0022]
Then, while the pulling cylinder 1 remains open, the upper small pressurizing cylinder 7 is driven to push down the indicator plate 15 below the mounting plate 13 against the back pressure of the balancing cylinder 6. As a result, the pressing plate 16 is brought into contact with the workpiece 25, and heating and pressing are performed with a low pressing force (FIG. 4). At this time, since the weight of the pressing plate 16 and the supporting plate 15 is supported by the balancing cylinder 6 as described above, the weight of the pressing plate 16 and the supporting plate 15 is not applied to the workpiece 25 at all. Therefore, extremely low pressure can be applied to the workpiece 25 by selecting the pressure cylinder 7.
[0023]
When the heating and pressurization such as film attachment with a low pressing force on the workpiece 25 is completed as described above, the evacuation from the suction hole 23 is stopped, and the inside of the compartment 26 is immediately returned to the atmospheric pressure. When the lower push-up cylinder 8 is operated in reverse to extend the rod 9, the sliding frame 20 is slid down and returned to the original position. At the same time, the upper low pressure cylinder 7 is opened, and at the same time, the pulling cylinder 1 is driven to pull up the mounting plate 3, the push plate 16 and the like via the support plate 15 (see FIG. 5). Is returned to the original position shown in FIG.
[0024]
As described above, the lifting cylinder 1 is mainly used for raising the weight of the entire upper moving part. However, depending on the workpiece 25, the pressure working with a large thrust after the low pressure heating by the pressing cylinder 7 is performed. In some cases, the lifting cylinder 1 is driven in the pushing direction.
[0025]
According to this embodiment, the entire upper moving portion is suspended by three large, medium and small cylinders of the upper pulling cylinder 1, the balancing cylinder 6, and the low-pressure cylinder 7 which are vertically connected in series. Since the weight of each pressurizing member such as the press plate 16 with heater and its support plate 15 which are driven separately is always supported and balanced by the back pressure to the balance cylinder 6, the low pressurization cylinder 6 At the time of pressurization, it is possible to heat and press the workpiece 25 with extremely low pressure.
[0026]
Embodiment 2. FIG.
FIGS. 6 and 7 show an apparatus in which a spring is used to cancel the overall weight of each of the pressurizing members separately driven inside the upper moving frame 19, instead of using the balancing cylinder 6 in the first embodiment. FIG.
[0027]
That is, reference numeral 27 denotes a plurality of non-extractable guide shafts (for example, one at each of four corners of the rectangular support plate 15) which penetrate the mounting plate 13 and the lower support plate 15 slidably up and down. A compression coil spring 28 is wound around a portion of the guide shaft 27 above the mounting plate 13, and the spring 28 is provided for the pressing plate 16 with the heater 18, the supporting plate 13 for suspending the pressing plate 16, the cylinder rod 5 and the shank 14. A resilient support force equal to or slightly larger than the total weight is applied, and the support plate 15 is urged to always contact the lower surface of the mounting plate 13.
[0028]
Then, as in the first embodiment, when the sliding frame 20 is raised to a predetermined position by driving the lifting cylinder 8 to form the compartment 26, the evacuation is started from the air suction hole 23, and the upper and lower series are pulled up. The cylinder 1 for low pressure and the cylinder 7 for low pressure are opened, and the upper moving frame 19 is dropped on the lower fixed frame 12 by vacuum evacuation force and own weight. Then, only the cylinder 7 for low pressure is driven to By pressing down the supporting plate 15 against the pressure, the pressing plate 16 with the heater 18 is brought into contact with the workpiece 25 on the receiving table 10 and heated and pressed at a low pressure (FIG. 7).
[0029]
Also in this case, similarly to the operation of the balancing cylinder 6 in the first embodiment, the compression plate spring 28 wound around the guide shaft 27 connecting the mounting plate 13 and the support plate 15 is pressed by the push plate 16 in the upper moving frame 19 and the like. Since a supporting force commensurate with the weight of each of the pressurizing members under vacuum is applied, their own weight does not act on the workpiece 25, so that only the low thrust of the pressurizing cylinder 7 is applied to the workpiece 25. Will be given to
[0030]
When the predetermined low-pressure heating for the workpiece 25 is completed, the inside of the vacuum chamber 26 is returned to the atmospheric pressure, the sliding frame 20 is lowered, the pressurizing cylinder 7 is opened, and the lifting cylinder 1 is moved. By driving, the mounting plate 13 is pulled up via the support plate 15 together with the push plate 16 and the like, and returned to the original position (FIG. 6).
[0031]
Embodiment 3 FIG.
The first and second embodiments are intended to heat and press the workpiece mainly at a high temperature of 350 to 400 ° C. so that the seal packing 24 for maintaining the airtightness does not face the compartment 26. The formation of the compartment 26 is performed by raising the sliding frame 20. However, when vacuum processing is performed at a relatively low temperature of 200 ° C. or less, the seal packing can withstand. It is also possible to form the compartment 26 by directly adhering the upper moving frame 19 to the outer periphery of the pedestal 10 without using the pusher 20 (therefore, the lifting cylinder 8 and the lower fixed frame 12 are not required).
[0032]
FIGS. 8 to 10 show such a third embodiment. That is, in FIG. 8, reference numeral 29 denotes a compression coil spring wound around each guide post 3 above the mounting plate 13, and the spring 29 constantly presses the mounting plate 13 downward to be vertically fixed to the lower surface of the mounting plate 13. The lower end of the upper moving frame 19 is pressed against the outer peripheral portion of the upper surface of the pedestal 10 and is urged so as to come into contact with a seal packing 40 provided so as to make a round around the step side surface of the outer peripheral portion.
[0033]
Then, first, the lifting cylinder 1 is operated, the mounting plate 13 is pulled up via the support plate 15 against the spring 29, the lower end of the upper moving frame 19 is separated from the receiving base 10, and the workpiece 25 is received. It is set on the table 10 (FIG. 8).
[0034]
Next, the lifting cylinder 1 is opened. As a result, the upper moving frame 19 descends due to the weight of the spring 29 pressure and the entire upper moving portion including the mounting plate 13, and the lower end thereof is pressed against the outer peripheral portion of the upper surface of the cradle 10, and the compartment inside the upper moving frame 19. 26, the vacuum is immediately drawn from the air suction holes 23 of the mounting plate 13 (FIG. 9).
[0035]
When the inside of the compartment 26 becomes high vacuum, the low-pressure cylinder 7 is operated to push down the support plate 15 against the compression coil spring 28 wound around the guide shaft 27 inserted through the mounting plate 13. Then, the press plate 16 with the heater is brought into contact with the workpiece 25 and heated and pressed at low pressure (FIG. 10).
[0036]
It should be noted that the resilience of the spring 28 is substantially balanced with the weight under vacuum of the entire pressurizing member including the push plate 16 inside the upper moving frame 19, as in the second embodiment. is there.
[0037]
In this manner, when the processing of the workpiece 25 by the low-pressure heating and pressing under the vacuum is completed, the evacuation from the suction port 23 is stopped, and the inside of the compartment 26 is returned to the atmospheric pressure. The pressurizing cylinder 7 is opened, and the pulling cylinder 1 is actuated to pull up the mounting plate 13 to the original position (FIG. 8) against the spring 29 as described above.
[0038]
Embodiment 4. FIG.
FIG. 11 shows a modification of the apparatus of the second embodiment (see FIG. 6), in which the cylinder 8 below the base 2 is different from that of the second embodiment as a lowering cylinder and the connecting rod 22 is made longer. The sliding frame 20 is previously pushed up so as to be in contact with the outer peripheral surface of the upper moving frame 19, and when forming the compartment 26, the cylinder 8 is driven to lower the sliding frame 20, and The structure is such that it straddles the lower fixed frame 2, and the operation and effect are the same as those of the second embodiment.
[0039]
8 to 11, a spring 29 similar to that of the third embodiment is wound around a portion above the mounting plate 13 of the guide post 3, but this spring is mounted on the mounting plate 14 against the lifting cylinder 1. Is pushed down, and is not always necessary.
[0040]
Embodiment 5 FIG.
FIG. 12 shows a modification of the apparatus of the first embodiment (FIG. 1). In contrast to the first embodiment, the frame forming the compartment 26 has a lower moving frame 30 also serving as a sliding frame. The lower moving frame 30 is constituted by an upper fixed frame 31 so as to form the compartment 26 by press-fitting the two frames 30, 31. The lower moving frame 30 is configured to be vertically slidable on the outer peripheral surface of the receiving base 10. ing.
[0041]
On the frame, a balance cylinder 6 and a low-pressure cylinder 7 are vertically arranged in series, and the lower end of the rod 5 is inserted through a mounting plate 13 fixed horizontally below the frame 4 to provide a heater. The support plate 15 is fixed to a vertically movable support plate 15 disposed below the mounting plate 13 to support the push plate 16.
[0042]
The balance cylinder 6 is constantly applied with back pressure so that each pressing member such as the push plate 16 with a heater and its support plate 13 inside the upper fixed frame 31 is provided with a supporting force corresponding to its own weight and balances. This is the same as in the first embodiment.
[0043]
When the compartment 26 is formed by raising the lower moving frame 30, the push plate 16 is lowered via the support plate 15 by driving the low-pressure cylinder 7 together with the evacuation from the suction hole 23, and the predetermined pressure is lowered. The workpiece 25 is heated and pressed with low thrust.
[0044]
Therefore, also in this embodiment, when the work 25 is heated and pressed by the push plate 16, no load is applied other than the thrust of the low pressure cylinder 7.
[0045]
Embodiment 6 FIG.
FIG. 13 shows another embodiment of the present invention in which non-oxidizing electric welding under vacuum is performed. For example, when two metal pieces 32a and 32b are electrically welded, in a so-called AC resistance welding in which both metal pieces are brought into surface contact with each other and a large current is passed through to generate heat due to electric resistance of the contact surface, so-called AC resistance welding is performed by applying a large thrust. Although there is no problem, a projection (projection) 32c is formed in advance by pressing or the like on one of the metal pieces 32a by a direct current spot welding, that is, the DC current stored in the capacitor is concentrated on the projection and the upper and lower electrodes are formed. In the case where the projections are melted and joined by discharging inside, if the projection is pressed with a large thrust during the discharge, the projections are crushed before the discharge, so that the fusion joining cannot be performed well.
[0046]
Therefore, in the embodiment shown in FIG. 13, at the time of initial energization under vacuum, the projections 32 c are melt-welded while lightly pressing both metal pieces 32 a and 32 b by the low-pressure cylinder 7. The thrust is used to apply pressure so that both metal pieces come into close contact with each other.
[0047]
In the figure, reference numeral 33 denotes an upper electrode (for example, the brass side) vertically fixed to the support plate 15 via an appropriate member, and reference numeral 34 denotes a lower electrode which is fixedly mounted on the receiving base 10 so as to face the upper electrode 15 up and down. This is an electrode (negative side), and the two metal pieces 32 a and 32 b are sandwiched between the two electrodes 33 and 34 by the lowering of the upper electrode 33.
[0048]
In addition, in the figure, when the upper moving frame 19 is lowered together with the mounting plate 13, the compartment 26 is formed by press-fitting with the lower fixed frame 12 provided on the upper surface of the outer periphery of the receiving base 10. As shown, the sliding frame 20 as shown in the first embodiment (FIG. 1), the second embodiment (FIG. 6), and the fourth embodiment (FIG. 11) is used as the compartment 26 forming means. Alternatively, the upper moving frame 19 is directly fitted to the outer peripheral portion of the upper surface of the cradle 10 as in the third embodiment (FIG. 8), or the upper fixed frame 31 as in the fifth embodiment (FIG. 12). It goes without saying that the lower moving frame 30 may be configured to be raised and fitted.
[0049]
【The invention's effect】
The present invention is as described above, and for the workpiece on the cradle, not only the members forming the compartments but also each member for pressing such as a pressing plate for heating and pressing under vacuum. The self-weight is counteracted by a dedicated cylinder with back pressure or a spring with a supporting force commensurate with the self-weight, so that only the low thrust of the low-pressure cylinder is applied to the workpiece. Crack breakage, performance obstacles, uneven thickness dimensions, adhesives, etc., such as lamination and bonding of chip-incorporated IC cards, thin evaporated film capacitor films, thin glass liquid crystal displays, soft ceramic green sheets, etc. Workpieces that do not want to protrude can be machined with a delicate and extremely low pressing force without applying excessive pressure, and digital pressure can be reduced even with extremely low thrust. It become possible to display control.
[Brief description of the drawings]
FIG. 1 is an explanatory front view showing an example of an entire apparatus for carrying out a method of the present invention.
FIG. 2 is an explanatory view of the operation of the apparatus of FIG. 1;
FIG. 3 is an operation explanatory view of the device of FIG. 1;
FIG. 4 is an operation explanatory view of the device of FIG. 1;
FIG. 5 is an operation explanatory view of the device of FIG. 1;
FIG. 6 is an explanatory front view of a device showing another embodiment of the device of the present invention.
FIG. 7 is an operation explanatory view of the device shown in FIG. 6;
FIG. 8 is an explanatory front view of a device showing still another embodiment of the device of the present invention.
FIG. 9 is an explanatory front view of a device showing another embodiment of the device of the present invention.
FIG. 10 is an explanatory front view of a device showing another embodiment of the device of the present invention.
FIG. 11 is an explanatory front view of a device showing another embodiment of the device of the present invention.
FIG. 12 is an explanatory front view of a device showing another embodiment of the device of the present invention.
FIG. 13 is an explanatory front view of a device showing another embodiment of the device of the present invention.
[Explanation of symbols]
1-Pulling cylinder 2-Base 3-Guide post 4-Support frame 5-Piston rod 6-Balancing cylinder 7-Pressurizing cylinder 8-Pushing cylinder 9-Rod 10-Cradle 11-Lower heater 12-Lower Fixed frame 13-mounting plate 14-shank 15-support plate 16-push plate 17-support rod 18-upper heater 19-upper moving frame 20-sliding frame 21-push-up plate 22-connecting rod 23-air suction hole 24-seal packing 25-workpiece 26-compartment 27-guide shaft 28-spring 29-spring 30-lower moving frame 31-upper fixed frame 32-metal piece 33-upper electrode 34-lower electrode 40-seal packing

Claims (7)

真空隔室を形成するための上下両枠内において、受け台上の被加工物に対し加熱加圧を行うヒータ付き押し板及びその支持板等の加圧用各移動部材の真空下での自重を常時背圧をかけた専用のバランスシリンダ又はそれら自重に見合う支持力を付与したスプリングによりバランスをとるようにして打ち消し、上記押し板を駆動するための低加圧用シリンダの推力以外には被加工物に対して荷重が極力かからないようにしたことを特徴とするプレス装置を用いた低加圧力真空加工方法。In the upper and lower frames for forming the vacuum compartment, the weight of each moving member for pressing such as a pressing plate with a heater and a supporting plate for heating and pressing the workpiece on the receiving table under vacuum is reduced. Workpieces other than the thrust of the low-pressure cylinder for driving the above-mentioned pressing plate are counterbalanced by a dedicated balance cylinder constantly applying back pressure or a spring provided with a supporting force corresponding to their own weight. A low-pressure vacuum processing method using a press device, wherein a load is minimized. 基台上には被加工物を載せる受け台と該受け台を取り囲むように立設した下固定枠と該固定枠外周を基台下側の押上げシリンダにより上下摺動自在の摺動枠体とが設けられ、基台上方のフレーム上には相対的に径が大型の引上げ用シリンダ、中型のバランス用シリンダ、小型の低加圧用シリンダの3個の下向きシリンダが上下直列に軸心を同じくして設置され、基台四隅に立設されたガイドポストに貫挿されて上下摺動自在の水平な取付板の中心部には上記直列シリンダの最下端のロッド下端部が摺動自在に挿通され、該ロッド下端は上記取付板の下側に配置された支持板の上面中心部に固定されて、該支持板は取付板を下面から支持すると共に取付板とは別個に上下動可能に構成され、該支持板の下側には下方の上記受け台と対面するヒータ付き押し板が該支持板により支持固定され、上記取付板の下面には下方の上記下固定枠と突合して隔室を形成するために該下固定枠と合致する形状と大きさの上移動枠が上記押し板を取り囲むように垂設固定され、上記バランス用シリンダはヒータ付き押し板及びその支持板等の上記上移動枠内で別個に上下動する加圧用各部材の真空下での自重に見合う背圧が常にかけられてバランスをとるように構成されてなることを特徴とするプレス装置を用いた低加圧力真空加工装置。A cradle on which a workpiece is mounted on a base, a lower fixed frame erected to surround the cradle, and a sliding frame body which is slidable up and down by a lifting cylinder below the base on the outer periphery of the fixed frame. On the frame above the base, three downward cylinders, a relatively large lifting cylinder, a medium balancing cylinder, and a small low-pressure cylinder, have the same axis in the vertical series. The lower end of the series cylinder is slidably inserted into the center of a horizontal mounting plate that is inserted through guide posts erected at the four corners of the base and is slidable up and down. The lower end of the rod is fixed to the center of the upper surface of a support plate disposed below the mounting plate, and the support plate supports the mounting plate from the lower surface and is vertically movable independently of the mounting plate. The lower side of the support plate faces the lower pedestal. A push plate is supported and fixed by the support plate, and an upper moving frame of a shape and size matching the lower fixed frame to form a compartment on the lower surface of the mounting plate by abutting with the lower fixed frame below. Is vertically fixed so as to surround the pressing plate, and the balancing cylinder is adapted to hold its own weight under vacuum of each of the pressing members which vertically move in the upper moving frame such as the pressing plate with heater and its supporting plate. A low-pressure vacuum processing apparatus using a press apparatus, characterized in that a suitable back pressure is always applied to achieve a balance. 基台上には被加工物を載せる受け台と該受け台を取り囲むように立設した下固定枠と該固定枠外周を基台下側の押上げシリンダにより上下摺動自在の摺動枠体とが設けられ、基台上方のフレーム上には相対的に径の大きな引上げ用シリンダと径の小さな低加圧用シリンダの大小2個の下向きシリンダが上下直列に軸心を同じくして設置され、基台四隅に立設されたガイドポストに貫挿されて上下摺動自在の水平な取付板の中心部には上記直列シリンダの最下端のロッド下端部が摺動自在に挿通され、該ロッド下端は上記取付板の下側に配置された支持板の上面中心部に固定されて、該支持板は取付板を下面から支持すると共に取付板とは別個に上下動可能に構成され、該取付板と支持板とは該両者を上下に摺動自在に貫挿する複数本の抜け出し不能のガイド軸により連結され、該ガイド軸の取付板より上側部分には圧縮コイルスプリングが巻装され、該支持板の下側には下方の上記受け台と対面するヒータ付き押し板が該支持板により支持固定され、上記取付板の下面には下方の上記下固定枠と突合して隔室を形成するために該下固定枠と合致する形状と大きさの上移動枠が上記押し板を取り囲むように垂設固定され、上記スプリングはヒータ付き押し板及びこれを吊持する支持板等の上記上移動枠内で別個に上下動する加圧用各部材の真空下での合計重量と同等又はそれより若干大きな弾発支持力が付与されて上記支持板が常に取付板下面に接するように賦勢されてなることを特徴とするプレス装置を用いた低加圧力真空加工装置。A cradle on which a workpiece is mounted on a base, a lower fixed frame erected to surround the cradle, and a sliding frame body which is slidable up and down by a lifting cylinder below the base on the outer periphery of the fixed frame. Is provided, on the frame above the base, two large and small downward cylinders of a relatively large diameter pulling cylinder and a small diameter low pressure cylinder are installed with the same axis in the vertical series, The lower end of the lowermost rod of the series cylinder is slidably inserted into the center of a horizontal mounting plate that is inserted through guide posts erected at the four corners of the base and is slidable up and down. Is fixed to the center of the upper surface of a support plate disposed below the mounting plate, the support plate supports the mounting plate from the lower surface, and is configured to be vertically movable separately from the mounting plate. And the support plate are provided with a plurality of A compression coil spring is wound around a portion above the mounting plate of the guide shaft, and a push plate with a heater facing the lower receiving table below the support plate. An upper moving frame of the same shape and size as the lower fixed frame surrounds the push plate on the lower surface of the mounting plate to abut with the lower fixed frame below to form a compartment. And the spring is equal to or equal to the total weight under vacuum of each pressurizing member that moves up and down separately in the upper moving frame, such as the push plate with heater and the support plate that suspends it. A low-pressure vacuum processing apparatus using a press apparatus, characterized in that a slightly larger elastic supporting force is applied and the support plate is urged to always contact the lower surface of the mounting plate. 請求項2又は3における摺動枠体を使用することなく、隔室を形成するための上移動枠体下端は各ガイドポストの取付板より上側部分に巻装された圧縮コイルスプリングにより受け台上面外周部に直接圧接嵌合するように賦勢されてなる請求項2又は3記載のプレス装置を用いた低加圧力真空加工装置。The lower end of the upper moving frame body for forming the compartment without using the sliding frame body according to claim 2 or 3 by a compression coil spring wound around a portion above the mounting plate of each guide post. A low-pressure vacuum processing apparatus using a press device according to claim 2 or 3, which is biased so as to directly press-fit to the outer peripheral portion. 前記摺動枠体は上移動枠外周面に上下摺動自在に嵌装されていて、隔室の形成に当り、基台下側のシリンダの駆動により下方へ向って摺動するようにした請求項2記載のプレス装置を用いた低加圧力真空加工装置。The sliding frame body is fitted slidably up and down on the outer peripheral surface of the upper moving frame, and slides downward by driving a cylinder below the base when forming the compartment. Item 6. A low pressure vacuum processing apparatus using the press apparatus according to Item 2. 前記隔室を上固定枠と下移動枠の嵌合により形成されるようにした請求項2又は3記載のプレス装置を用いた低加圧力真空加工装置。4. A low-pressure vacuum processing apparatus using a press device according to claim 2, wherein the compartment is formed by fitting an upper fixed frame and a lower moving frame. 基台上方のフレーム上に相対的に径の大きな引上げ用シリンダと径の小さな低加圧用シリンダの大小2個の下向きシリンダが上下直列に軸心を同じくして設置され、基台四隅に立設されたガイドポストに貫挿されて上下摺動自在の水平な取付板はガイドポストの該取付板より上側部分に巻装された圧縮コイルスプリングにより常に下方の下固定枠と突合して隔室を形成するように賦勢され、該取付板の中心部には上記直列シリンダのロッド下端部が摺動自在に挿通されて、該ロッド下端は上記取付板の下側に配置された支持板の上面中心部に固定され、該支持板は取付板とは別個に上下動可能に構成され、該取付板と支持板とは該両者を上下に摺動自在に貫挿する複数本の抜け出し不能のガイド軸により連結され、該ガイド軸の取付板より上側部分には圧縮コイルスプリングが巻装され、該支持板の下側には適当な部材を介して上電極が固定され、また受け台2は上電極と対面する下電極が設置されて、該両電極間で2枚の金属板を挟持することにより直流スポット溶接を行うように構成されたことを特徴とするプレス装置を用いた真空電気溶接装置。Two large and small downward cylinders, a large-diameter lifting cylinder and a small-diameter low-pressure cylinder, are installed on the frame above the base with the same axis in the vertical direction, and stand upright at the four corners of the base. The horizontal mounting plate, which is inserted into the guide post and is slidable up and down, always abuts with the lower fixing frame below by the compression coil spring wound around the mounting plate above the mounting plate to form a compartment. The lower end of the rod of the series cylinder is slidably inserted into the center of the mounting plate, and the lower end of the rod is positioned at the center of the upper surface of a support plate disposed below the mounting plate. The support plate is configured to be movable up and down independently of the mounting plate, and the mounting plate and the support plate are a plurality of non-removable guide shafts that penetrate the two slidably up and down. And above the mounting plate of the guide shaft. A compression coil spring is wound around the support plate, an upper electrode is fixed to the lower side of the support plate via an appropriate member, and a lower electrode facing the upper electrode is provided on the pedestal 2. A vacuum electric welding apparatus using a press apparatus, wherein DC spot welding is performed by sandwiching two metal plates between electrodes.
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WO2007013212A1 (en) * 2005-07-29 2007-02-01 Mikado Technos Co., Ltd. Vacuum high pressure filling equipment
JP2007044730A (en) * 2005-08-10 2007-02-22 Yamamoto Vinita Co Ltd Safety device in press working machine such as high frequency welder
CN102135672A (en) * 2011-01-20 2011-07-27 苏州凯蒂亚半导体制造设备有限公司 Hot-pressing sticking mechanism
KR101139152B1 (en) 2008-10-09 2012-04-26 가부시키가이샤 히다치 산키시스템 Press load control method in precise press apparatus
CN102744900A (en) * 2012-06-15 2012-10-24 河南科技大学 Multifunctional hydraulic machine
KR101471951B1 (en) * 2013-07-09 2014-12-11 한국기계연구원 Uniformity a surface pressing apparatus
KR20160138237A (en) * 2014-03-28 2016-12-02 마이크로닉스 인코포레이티드. Methods and apparatus for lamination of rigid substrates by sequential application of vacuum and mechanical force
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US7966966B2 (en) 2005-07-29 2011-06-28 Mikado Technos Co., Ltd. Vacuum high pressure filling equipment
WO2007013212A1 (en) * 2005-07-29 2007-02-01 Mikado Technos Co., Ltd. Vacuum high pressure filling equipment
JP2007044730A (en) * 2005-08-10 2007-02-22 Yamamoto Vinita Co Ltd Safety device in press working machine such as high frequency welder
JP4668725B2 (en) * 2005-08-10 2011-04-13 山本ビニター株式会社 Safety devices for press machines such as high-frequency welders
US8387526B2 (en) 2008-10-09 2013-03-05 Hitachi Industrial Equipment Systems Co., Ltd. Precision press device and press load control method thereof
KR101139152B1 (en) 2008-10-09 2012-04-26 가부시키가이샤 히다치 산키시스템 Press load control method in precise press apparatus
KR101212395B1 (en) * 2008-10-09 2012-12-13 가부시키가이샤 히다치 산키시스템 Precise press apparatus
CN102135672A (en) * 2011-01-20 2011-07-27 苏州凯蒂亚半导体制造设备有限公司 Hot-pressing sticking mechanism
CN102744900A (en) * 2012-06-15 2012-10-24 河南科技大学 Multifunctional hydraulic machine
KR101471951B1 (en) * 2013-07-09 2014-12-11 한국기계연구원 Uniformity a surface pressing apparatus
KR20160138237A (en) * 2014-03-28 2016-12-02 마이크로닉스 인코포레이티드. Methods and apparatus for lamination of rigid substrates by sequential application of vacuum and mechanical force
US10518517B2 (en) 2014-03-28 2019-12-31 Perkinelmer Health Sciences, Inc. Methods and apparatus for lamination of rigid substrates by sequential application of vacuum and mechanical force
KR102332628B1 (en) * 2014-03-28 2021-11-30 퍼킨엘머 헬스 사이언시즈, 아이엔씨. Methods and apparatus for lamination of rigid substrates by sequential application of vacuum and mechanical force
KR102400447B1 (en) * 2021-05-13 2022-05-19 신용팔 Press apparatus for pressing ceramics green sheet

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