JP3872926B2

JP3872926B2 - Adsorption device for taking out goods

Info

Publication number: JP3872926B2
Application number: JP2000036824A
Authority: JP
Inventors: 定泰佐藤
Original assignee: 株式会社マキ製作所
Priority date: 2000-02-15
Filing date: 2000-02-15
Publication date: 2007-01-24
Anticipated expiration: 2020-02-15
Also published as: JP2001225291A

Description

【０００１】
【発明の属する技術分野】
本発明は、例えばリンゴ、梨、トマト等の農産物を収容するトレイパックを、積み重ねられた状態から一枚ずつ分離して取り出すことのできる物品取出し用の吸着装置に関する。
【０００２】
【従来の技術】
従来、物品を吸着して取出す装置としては、例えば実開平３−１１５２１２号公報、特公昭５５−４３８７６号公報あるいは実開昭５５−１７５０８９号公報に開示されている。先ず、実開平３−１１５２１２号公報に開示の物品の吸着保持体（吸着装置Ａという）は、吸着パッドの下端開口部に、非通気性のゴムスポンジ等を所定幅で環状に設けたものである。
【０００３】
また、特公昭５５−４３８７６号公報に開示の重量物搬送用吸盤（吸着装置Ｂという）は、逆じょうご状の真空室の周囲に中空の加圧室を設け、加圧室に空気圧または水等の流体源と連結した取入口を設けると共に真空室を真空源に連結し、加圧室を圧入することによりその内圧と真空室の吸引力と相俟って、平面を持つ重量物を吸着するようにしたものである。さらに、実開昭５５−１７５０８９号公報に開示の吸着筺（吸着装置Ｃという）は、吸着筺本体の下面側に取り付けられた多孔板の下面に、通気性のスポンジ板を設けたもので、タイル等の平板状の物品の吸着に適するものである。
【０００４】
【発明が解決しようとする課題】
しかしながら、吸着装置Ａにあっては、一般的に使用されている蛇腹式吸着盤の改良型であり、被吸着面の凹凸の差が比較的少ない物品や緩やかな物品（例えば筋状、イボ状、あるいは網目状の凹凸等を有する物品）で、かつ球状型の青果物等の物品の吸着保持には好適であるものの、被吸着面の凹凸の差が急激で大きな物品の場合には吸着ミスが生じ易いという問題点があった。すなわち、凹凸の差が大きく急激な物品かあるいは凹凸がある部分に集中しているような物品の場合、当該凹凸部分の段差が、環状ゴムスポンジの弾性変形及び撓み変形範囲内で吸収できないことがあり、環状ゴムスポンジが物品の被吸着面に確実に接触せず、吸着ミスが生じ易くなる。
【０００５】
また、吸着装置Ｂにあっては、加圧室を形成するゴム等の弾性質の吸着壁を物品の被吸着面に吸着させる方式であるため、吸着壁の弾性変形及び撓み変形範囲内で、物品の被吸着面の凹凸を吸収することは難しい。さらに、吸着装置Ｃにあっても、スポンジの圧縮変形によって物品を吸着する方式であるため、スポンジの圧縮変形範囲内で、物品の被吸着面の凹凸を吸収することが難しい。したがって、これらの吸着装置Ｂ、Ｃにあっても、被吸着面の凹凸の段差が急激で大きな物品の場合には、吸着装置Ａと同様の問題点を有していることになる。
【０００６】
ところで、被吸着面の凹凸の段差が急激で大きく変化する物品の一例として、各種農産物の包装箱詰め時に使用される農産物収容用のトレイパックが上げられる。このトレイパックは、段差の大きな多数の凹部が所定の配列で隣設して形成されているもので、凹部の配列及びその形状、大きさは多種多様に設定されている。そして、このようなトレイパックに農産物を箱詰めする場合、一般的に、農産物の選別包装施設に設置されている箱詰めロボット等によって自動的に行われるが、この自動箱詰め時に多数枚積層されたトレイパック群から各トレイパックを一枚づつ取上げて箱詰め位置にセットする必要がある。
【０００７】
このトレイパック群からの各トレイパックの取上げは、取上げ時に、特定の１種類のトレイパックを限定して、例えば前記吸着装置Ａで、トレイパックの凹部の底部や平らな凸部に吸着パッドを接触させて吸着取上げることは可能である。しかし、多種多様の形態のトレイパックを取り扱う選別包装施設においては、凹部の配列及び形状、大きさに応じた多くの形状の吸着パッドを用意しなければならず、吸着装置Ａでは、コスト、運営操作性及び配置スペース等の点において実用的でない。
【０００８】
また、トレイパックは、その隣設する凹部間の仕切壁（立上がり壁）についても、その形状が外周縁部（上端面）と同一のもの、あるいは仕切壁の上部に凹みを有するものがある等、多種多様である。そのため、仕切壁がトレイパックの外周縁部と全て同一で、上方から平らな板等を伏せた時に空気漏れが生じ難いトレイパックの場合は、平面を持つ物品を取上げることを目的とした、前記吸着装置Ａや吸着装置Ｂ等で吸着できる可能性は高い。しかし、仕切壁の高さが低かったり前記凹みを有するようなトレイパックの場合は、平らな吸着面に接触させるだけでは隙間ができるため、空気漏れが生じ易く前述した吸着装置Ｂ、Ｃ等での吸着は困難である。そこで、トレイパックの仕切壁の形状等に応じて、吸着装置Ｂ、Ｃ等を選択的に使い分けることも考えられるが、これも実際上困難であり汎用的でない。
【０００９】
つまり、前記吸着装置Ａにあっては、トレイパックの凹部の配列、形状等が多種多様にある場合に、この吸着装置Ａを用いて各種形態のトレイパックを確実に吸着取上げることは困難であり、吸着装置Ａがトレイパックの形態毎に専用化されて吸着装置Ａ自体のコストアップを招くことになる。また、吸着装置Ｂや吸着装置Ｃにあっては、吸着壁やスポンジの圧縮変形に限度があることから、隣設する凹部の間の仕切壁の高さが様々あるトレイパックを安定して吸着することが難しい。また、吸着装置Ａ〜Ｃで同一形状のトレイパックを吸着取上げたとしても、トレイパックの厚さが比較的薄いことから、吸着時にトレイパック全体の反りや曲がりが発生し易く、吸着ミスを一層招き易いという問題点があるのも実情である。
【００１０】
本発明は、このような事情に鑑みてなされたものであって、請求項１記載の発明の目的は、物品の被吸着面が一定でなかったり凹凸の段差が急激なもの等であっても、シート状部材の被吸着面への密着性を高めて、物品を一枚ずつ確実に分離し得る物品取出し用の吸着装置を提供することにある。また、請求項２または３記載の発明の目的は、請求項１記載の発明の目的に加え、シート状部材の被吸着面への密着性をより高め得る物品取出し用の吸着装置を提供することにある。また、請求項４記載の発明の目的は、請求項１記載の発明の目的に加え、各種形状の物品に容易に対応して汎用性を向上させ得る物品取出し用の吸着装置を提供することにある。また、請求項５記載の発明の目的は、請求項１記載の発明の目的に加え、シート状部材の被吸着面への密着性をより一層高め得る物品取出し用の吸着装置を提供することにある。
【００１１】
【課題を解決するための手段】
かかる目的を達成すべく、本発明のうち請求項１記載の発明は、物品が複数枚積層された物品群から物品を一枚ずつ吸着して分離し取出す物品取出し用の吸着装置であって、中央部分に吸引装置に接続される吸引口が上下に貫通して設けられた平板状の基盤と、その内周縁部が吸引口の周囲全面に亘って固着され、その外周縁部が基盤の外周縁部に固着されると共に、基盤の下面側に弛みを持たせて張設されてその内側に内部空間を形成する柔軟なシート状部材と、該シート状部材の内面に配設されると共に複数の錘を有する錘部材と、を備えたことを特徴とする。この吸着装置を実施するために用いられるシート状部材は、厳密の意味での気体を通過させないという機能を必ずしも必要とするものではなく、物品を吸着保持し得る負圧が確保できるものであればよく、例えば各種の生地の繊維製品（布）や合成樹脂シート部材のいずれであってもよい。
【００１２】
このように構成することにより、例えば基盤を下降させてその下面側に張設されてその内側に内部空間を形成するシート状部材を、物品の被吸着面に接触させて吸引装置を作動させると、基盤の下面側で吸引口の周囲全周に亘って設けられているシート状部材が、吸引口からの吸引作用で被吸着面の凹凸に沿いつつ吸引口方向に移動する。このシート状部材の移動により、柔軟で弛みを持って張設されたシート状部材が物品の被吸着面に馴染むが、この時、シート状部材の内面に配設されている錘部材がシート状部材を所定の張力で下方に引っ張っていることから、シート状部材を物品の被吸着面の凹凸形状に馴染ませつつ密着させるので、シート状部材と物品の被吸着面との密着性が高まる。このシート状部材の十分な密着によって、積み重ねられた物品が一枚ずつ確実に分離される。
【００１３】
また、請求項２記載の発明は、錘部材が、多数の錘を連結することによって鎖状に形成されて吸引口の外側に略環状に配設されていることを特徴とし、請求項３記載の発明は、錘部材の複数の錘が所定の間隔を有して吸引口の外側に略同心円状に配設されていることを特徴とする。このように構成することにより、錘部材が例えば鉛や金属片からなる多数の錘を鎖状に連結させて形成したり、複数の錘を所定間隔で略環状に配設することによって形成されることから、錘部材自体にシート状部材の変形に良好に追従する柔軟性が得られて、シート状部材の物品の被吸着面への密着性がより高まる。
【００１５】
また、請求項４記載の発明は、錘部材の多数の錘が吸引口の外側に散乱状態で配設されていることを特徴とする。このように構成することにより、錘部材を形成する多数の錘が、吸引口の外側に散乱状態で配設されていることから、シート状部材の略全域を下方に所定の張力で引っ張ることができて、物品の被吸着面の形状に係わらず良好な密着性が得られると共に、各種物品の吸着に適用できその汎用性が向上する。また、請求項５記載の発明は、シート状部材には、前記内部空間内の空気を換気させる通気孔が設けられていることを特徴とする。このように構成することにより、吸引口からの吸引作用によるシート状部材の移動時に、通気孔から外気が導入されるため、この外気によってもシート状部材の移動がよりスムーズに行われ、シート状部材の被吸着面への密着性をより一層高めることができる。
【００１６】
【発明の実施の形態】
以下、本発明の実施の形態を図面に基づいて詳細に説明する。
図１〜図５は、本発明に係わる物品取出し用の吸着装置の一実施例を示し、図１がその一部破断した斜視図、図２が断面図、図３がその底面図、図４が農産物収容用のトレイパックの断面図、図５が吸引動作時の断面図である。
【００１７】
図１〜図３において、吸着装置１は、鉄板等からなる平板状の基盤２を有し、この基盤２の下面２ｂには、スポンジ等からなる弾性体３を介して、柔軟なシート状部材４が取り付けられている。このシート状部材４は、各種の生地の繊維製品（例えばポリエスル繊維）や、合成樹脂シート（例えばポリエチレンシート）等の非通気性を有する薄いシートによって、比較的浅型の略袋状に形成されている。
【００１８】
そして、シート状部材４は、その内周縁部４ａが、基盤２と弾性体３の中心位置に設けた円形の吸引口５の開口全域に適宜の固着手段で固着されると共に、その外周縁部４ｂが、基盤２（及び弾性体３）の外周縁部に接着等の適宜の固着手段で固着されている。また、シート状部材４の内部には、鉛や金属片等の多数の錘６ａを糸６ｂで連結することによって鎖状に形成された錘部材６が円環状に配設されており、この錘部材６は、シート状部材４の内面４ｃの所定位置に固定糸７で縫い付けられることによって該シート状部材４に一体化されている。
【００１９】
これにより、シート状部材４は、基盤２の下面２ｂ側（弾性体３の下面側）に、錘部材６の重量に対応した張力で引っ張られかつ所定の弛みを有する状態で固着されて、その内部には環状の内部空間８が形成されている。なお、錘部材６のシート状部材４の内面４ｃへの配設は縫い付けによる固着に限らず、例えば各錘６ａを接着剤によって固着しても良いし、あるいはシート状部材４の内面４ｃに袋状の錘収容部を設け、この錘収容部内に糸６ｂで連結することなく各錘６ａを単に挿入させて配設する等、適宜の構造を採用することができる。また、錘部材６として、金属製の鎖を用いることも勿論可能である。
【００２０】
前記基盤２の上面２ａ側で吸引口５部分には、吸気管９の一端が接続され、この吸気管９の他端は、図示しない吸引装置に接続されている。この吸引装置の作動で吸引口５を介して、シート状部材４の外面４ｄ（下面）と物品としてのトレイパック１０の被吸着面１０ａとで形成される空間１１（図５参照）が、後述する如く負圧になることによって、所定の弛みを有するシート状部材４がトレイパック１０の被吸着面１０ａの形状に馴染みながら移動することになる。
【００２１】
なお、シート状部材４の外周縁部４ｂと基盤２との固着部で、基盤２の対角線位置には内部空間８内の空気を換気させる通気孔１２が設けられると共に、基盤２と弾性体３の適宜位置には、シート状部材４内にエアーを供給して強制的に膨らませ元の状態に復帰させる図示しないエアー送風口が設けられている。これらの通気孔１２やエアー送風口は必ずしも必要ではなく、例えば通気孔１２を省略し、内部空間８内の換気をシート状部材４自体の材質（所定の通気性）によって行うことも勿論可能であるし、シート状部材４の復帰をその自重で行うこともできる。
【００２２】
また、前記吸引口５内には吸込防止機構１３が設けられている。この吸込防止機構１３は、吸気管９の下端に固定された支持板１４と、この支持板１４の下端に固定された金網１５とで形成され、金網１５の下面位置（支持板１４の高さ）は、弾性体３の下面より若干上方に位置するように設定されている。この吸込防止機構１３によって、板厚が薄く変形し易いトレイパック１０等の吸引口５内への吸い込みが防止される。
【００２３】
次に、この吸着装置１による農産物収容用のトレイパック１０の吸着取出し動作について説明する。先ず、農産物収容用の一般的なトレイパック１０は、図１及び図４に示すように、平面視直方体形状でその被吸着面１０ａには、多数の凹部１６が所定の配列を有する如く発泡樹脂等で形成されている。このトレイパック１０の隣設する凹部１６間の仕切壁１７（立上がり壁）には、凹部１６内に収容された農産物の取出し等を容易にするための凹み１７ａがそれぞれ形成されると共に、凹部１６間及び外周縁部には平坦部１８が形成されている。このように形成されたトレイパック１０は、上下のトレイパック１０の凹部１６部分を軽く嵌合させることで積層されて、図１に示すように、トレイパック群１９を形成している。
【００２４】
そして、このトレイパック群１９から、最上段のトレイパック１０を吸着装置１で吸着して取上げる（持ち上げる）場合、吸着装置１のシート状部材４が膨らみ下方に弛んだ状態で、吸着装置１（吸気管９及び基盤２）を下降させてシート状部材４の外面４ｄをトレイパック１０の被吸着面１０ａに押し付ける。この時、シート状部材４は所定の張力で下方に弛んだ状態となっているため、シート状部材４がトレイパック１０の被吸着面１０ａの平坦部１８に収縮した状態で接触すると共に、凹部１６や仕切壁１７部分に所定圧（下降量に応じた圧力）で接触した状態となる。また、例えばトレイパック１０の被吸着面１０ａの仕切壁１７の凹み１７ａ部分においては、被吸着面１０ａの凹凸の段差が急激に変化するため、シート状部材４とトレイパック１０との間に多少の隙間を有する箇所も生じることになる。
【００２５】
ところがこの隙間は、シート状部材４を被吸着面１０ａに押し付けた状態で吸引装置を作動させることによって塞がれる。すなわち、図５に示すように、吸気管９及び吸引口５を介して、シート状部材４の外面４ｄとトレイパック１０の被吸着面１０ａで形成される空間１１内が負圧となり、この負圧によって柔軟なシート状部材４が吸引口５方向に引っ張られて移動する。シート状部材４が吸引口５方向に移動すると、シート状部材４が柔軟であると共に、錘部材６で下方に所定の張力で引っ張られていることから、トレイパック１０の被吸着面１０ａの凹凸の段差に沿ってシート状部材４が段差に馴染みつつ移動して、前記隙間がシート状部材４で塞がれることになる。
【００２６】
この隙間が塞がれることによって空間１１内が密閉された状態となり、所定の吸引圧でシート状部材４がトレイパック１１の被吸着面１０ａの平坦部１８、凹部１６及び仕切壁１７の凹み１７ａ部分等の全域に密着する。この時、シート状部材４の内部に錘部材６が配設されていることから、この錘部材６が凹部１６内にはまり込み、シート状部材４の被吸着面１０ａへの密着性が高まって、短時間に良好な密着状態が得られる。そして、この状態で吸着装置１が上昇することによって、最上段のトレイパック１０が直下のトレイパック１０から分離して取上げられる。
【００２７】
なお、隙間が塞がれると空間１１内が密閉状態となり、板厚の薄いトレイパック１０が吸引口５内に吸い込まれ易くなる。しかし、この吸い込みは、吸引口５に設けた吸込防止機構１３の金網１５によって防止され、吸着時のトレイパック１０の反り等の変形がなくなり、上下のトレイパック１０の分離がスムーズとなる。また、シート状部材４の移動時に、シート状部材４の４隅の外周縁部４ｂに通気孔１２を設けた場合は、この通気孔１２から外気が導入されるため、この外気によってもシート状部材４の移動がよりスムーズに行われる。
【００２８】
そして、この取上げられたトレイパック１０は、例えば後述する選別包装施設２２の所定位置まで移送された後に、吸引装置の作動を停止させることにより、シート状部材４がトレイパック１０の被吸着面１０ａから離れ、トレイパック１０が所定位置にセットされる。この時、吸引装置の停止で吸引口５からの吸引作用が停止すると、シート状部材４は、例えばその自重で垂れ下がって元の膨らんだ状態に復帰して再使用可能な状態となる。なお、シート状部材４の復帰は、前述したエアー送風口からの送風によってシート状部材４を強制的（かつ短時間に）膨らますことで行うこともできる。
【００２９】
このように本発明の吸着装置１によれば、柔軟なシート状部材４を錘部材６で下方に所定の張力を付与させつつ弛ませた状態で設け、このシート状部材４を吸引作用によって吸引口５方向に移動させることにより、シート状部材４をトレイパック１０の被吸着面１０ａの凹凸形状に馴染ませつつ密着させる。そのため、被吸着面１０ａの凹凸の段差が大きくかつ急激な形状のトレイパック１０であっても、シート状部材４をその被吸着面１０ａに確実に密着させて取上げることができ、トレイパック１０の形状に係わらず、一つの吸着装置１で各種形状のトレイパック１０の取上げが可能になる。
【００３０】
次に、前記吸着装置１を使用した農産物の選別包装施設の概略を図６〜図１１に基づいて説明する。図６〜図９において、選別包装施設２２は、供給されてくる農産物を選別するための選別コンベア２３を有し、この選別コンベア２３にはその搬送方向と直交する方向に２列対になった貯留集積コンベア２４が複数列接続されている。そして、この各貯留集積コンベア２４は、その上流側に排出装置２５がそれぞれ配置されると共に、その下流側には箱詰め部２６が設けられている。
【００３１】
前記箱詰め部２６は、吸着装置１が装着されたトレイパック供給装置２７と、箱詰め装置２８及び空箱供給装置２９等で構成されている。トレパック供給装置２７は、複数列の貯留集積コンベア２４の下流側上方に１列状態で配置された、例えば１８玉、２０玉及び２４玉の３種類のトレイパック１０用の載置台３０と、緩衝シート３１用の載置台３２を有し、この各載置台３０、３２の上方に吸着装置１が位置し得るように構成されている。なお、載置台３０、３２の一つの角部上方には、前記吸着装置１によるトレイパック１０の取上げ前に、トレイパック１０の上面端部を所定位置まで持ち上げる補助吸着装置３３がそれぞれ配置されている。
【００３２】
そして、吸着装置１は、トレイパック供給装置２７に次のようにして取り付けられている。すなわち、図７に示すように、吸気管９の上端に支持杆３４が連結され、この支持杆３４の上部に軸受３５が配置されると共に、支持杆３４上部と軸受３５には１対の平行アーム３６ａ、３６ｂの一端が連結されている。また、平行アーム３６ａの他端はモータ３７に連結され、平行アーム３６ｂの他端は支軸に連結され、さらに、モータ３７や平行アーム３６ａ、３６ｂの他端が固定されるフレーム３８は、そのガイド３９がモータ４１の回転で上下動するガイド杆４０に係合している。
【００３３】
これにより、モータ３７が回転することにより、一対の平行アーム３６ａ、３６ｂが、図６に示す載置台３０、３２の位置と箱詰め位置Ｓ１との間で矢印イの如く水平面内で回動する。また、モータ４１が回転することにより、フレーム３８（すなわち一対の平行アーム３６ａ、３６ｂ）が、カイド杆４０に沿って図７の矢印ロ方向（Ｚ方向）に上下動し、図６に示すモータ４２が回転することにより、矢印ハ方向（Ｙ方向）に移動する。
【００３４】
前記箱詰め装置２８は、所定数の吸着パッド４５を有する箱詰めヘッド４４を有し、この箱詰めヘッド４４は、図９に示すモータ４６が回転することによってＹ方向に移動すると共に、モータ４７の回転によってＺ方向に移動し、さらに図６に示すモータ４８の回転によってＸ方向に移動可能に設けられている。この箱詰めヘッド４４は、その吸着パッド４５によって、貯留集積コンベア２４の下流側に接続された搬送コンベア４９の、箱詰め待機位置Ｓ２に待機しているトレイ５０上の農産物Ｗを吸着して取上げる。そして、この農産物Ｗが、Ｘ方向前方に移動することによって、前記トレイパック供給装置２７で取上げられ、箱詰め位置Ｓ１にセットされているトレイパック１０の凹部１６内に収容（箱詰め）される。
【００３５】
前記空箱供給装置２９は、図７に示すように、箱詰め装置２８の反箱詰め位置Ｓ１側に設置された空箱降下装置５１と、この空箱降下装置５１の下端に連結され空箱５２を箱詰め位置Ｓ１下方まで搬送する空箱搬送コンベア５３と、この箱詰め位置Ｓ１下方まで搬送された空箱５２を箱詰め位置Ｓ１まで上昇させる空箱上昇装置５４等で構成されている。なお、空箱降下装置５１には、例えば４種類の空箱５２を供給する４列の配函コンベア５５が接続されており、この配函コンベア５５で搬送されてくる空箱５２が、適宜に選択されて空箱降下装置５１に供給される。
【００３６】
なお、前記補助吸着装置３３は、図７及び図８に示すエアーシリンダー５７によって上下動する吸着パッド５６と、図１０及び図１１に示す一対の抵抗部材５８をそれぞれ有し、各吸着パッド５６は、載置台３０上のトレイパック１０の角部端部の凹部１６内に浸入して当接し得ると共に、載置台３２上の緩衝シート３１の角部端部に当接し得るように配置されている。また、抵抗部材５８は、三角形状の５個の係合部５９ａを有する板体５９をそれぞれ有し、トレイパック１０の長手方向の両端部に所定の圧力で当接し得る位置に配置されている。
【００３７】
ここで、この選別包装施設２２における農産物Ｗと空箱５２等の流れの概略について説明する。先ず、等階級等が判定（仕分け分類）された農産物Ｗは、仕分け分類に応じて対応する排出装置２５が作動することによって、選別コンベア２３から所定の貯留集積コンベア２４上に供給されて貯留集積される。この貯留集積された農産物Ｗは、貯留集積コンベア２４の下流側に接続された搬送コンベア４９上に適宜に供給されて箱詰め待機位置Ｓ２で待機させられる。一方、４種類の空箱５２は、造られた状態（上面が開けられた状態）で配函コンベア５５で搬送されて、各空箱降下装置５１の位置で停止させられて待機し、所定の空箱５２が空箱降下装置５１内に供給される。この空箱５２は、空箱搬送コンベア５３で搬送され、空箱上昇装置５４によって２箇所の箱詰め位置Ｓ１にそれぞれセットされる。
【００３８】
そして、所定の農産物Ｗが箱詰め待機位置Ｓ２に所定数待機され、箱詰め位置Ｓ１に空箱５２がセットされたら、トレイパック供給装置２７が作動して、前述したように、シート状部材４の吸着によって、所定のトレイパック群１９の最上段のトレイパック１０が取上げられる。この最上段のトレイパック１０の取上げは次のようにして行われる。すなわち、先ず、図１０に示すように、補助吸着装置３３を作動させて、その吸着パッド５６をトレイパック１０の端部の凹部１６内に位置させ、吸引装置を作動させて吸着パッド５６を凹部１６内面に密着（吸着）させる。
【００３９】
この状態で、吸着パッド５６を図１０の実線で示す待機位置まで上昇させた後吸着を解除し、この吸着パッド５６を吸着装置１の回動動作に支障のない退避位置（図１０の二点鎖線の位置）までさらに上昇させる。そして、この吸着パッド５６によってトレイパック１０を吸着して上昇する時に、トレイパック１０の端部が一方の抵抗部材５８の係合部５９ａに当接して、最上段のトレイパック１０が直下のトレイパック１０と分離される。そして、係合部材５８によって係合されて傾斜状態のトレイパック１０は、図１１に示すように、吸着装置１のシート状部材４が当接され、この吸着装置１で前述したように取上げられる。
【００４０】
このようにして吸着装置１で取上げられたトレイパック１０は、平行アーム３６ａ、３６ｂが回転することにより、箱詰め位置Ｓ１に移送され空箱５２内に嵌装されてセットされる。この状態で、箱詰め装置２８が作動して、その箱詰めヘッド４４の吸着パッド４５で、箱詰め待機位置Ｓ２に待機しているトレイ５０上の農産物Ｗが所定数一括吸着されて取上げられ、箱詰め位置Ｓ１まで移動させられる。
【００４１】
箱詰め位置Ｓ１まで移動させられた農産物Ｗは、箱詰めヘッド４４の下降により、トレイパック１０の凹部１６内に例えば一列状態で収容され、この作業を所定回数繰り返すことにより、所定玉数の農産物Ｗがトレイパック１０の各凹部１６内にそれぞれ収容（箱詰め）される。１枚目のトレイパック１０の全ての凹部１６に農産物Ｗが箱詰めされたら、トレイパック供給装置２７を作動させて、載置台３２上に積層載置されている最上段の緩衝シート３１を、吸着装置１のシート状部材４で吸着して取上げる。
【００４２】
この緩衝シート３１の吸着取上げも、シート状部材４のトレイパック１０に対する作用と同様の作用によって取上げられ、この緩衝シート３１が箱詰め位置Ｓ１まで移送されて、箱詰めされた空箱５２内の農産物Ｗ上に載置される。そして、箱詰め形態が２段積みの場合は、この緩衝シート３１上にさらに次のトレイパック１０が積層されて農産物Ｗが箱詰めされ、所定段数箱詰めされた時点で箱詰め作業が終了する。この農産物Ｗが箱詰めされた包装箱は、製品搬送コンベアで下流側に搬送され、農産物Ｗが箱詰めされた包装箱が排出された箱詰め位置Ｓ１には、空箱供給装置２９により次の空箱５２が供給される。
【００４３】
このように上記実施例の吸着装置１によれば、基盤２の吸引口５の下面２ｂ外周に柔軟なシート状部材４を弛ませた状態で取り付けると共に、シート状部材４の内部に鎖状の錘部材６を配設しているため、シート状部材４に所定の張力を付与させつつ吸引装置の作動で吸引口５方向に移動させることができ、シート状部材４をトレイパック１０の凹凸形状に馴染ませつつ被吸着面１０ａに密着させることができる。その結果、仕切壁１７に凹み１７ａを有する凹凸の段差が大きく急激であるトレイパック１０であっても、シート状部材４を被吸着面１０ａの全域に良好に吸着させることができて、最上段のトレイパック１０を吸着ミスすることなく確実に取上げることができる。
【００４４】
特に、シート状部材４の吸引による移動時に、シート状部材４が錘部材６で下方に所定の張力で引っ張られると共に、錘部材６が多数の錘６ａを糸６ｂで連結することによって鎖状に形成されてシート状部材４の変形に追従し得る柔軟性を有していることから、錘部材６が凹部１６内等に良好にはまり込み、シート状部材４の被吸着面１０ａへの密着性を高めることができて、トレイパック１０の取上げをより短時間で確実に行うことが可能になる。
【００４５】
また、シート状部材４が基盤２に所定厚さの弾性体３を介して取り付けられているため、この弾性体３の弾性変形により、トレイパック１０の被吸着面１０ａの多少の凹凸を吸収することができ、シート状部材４のトレイパック１０への吸着をよりスムーズに行うことができる。さらに、吸引口５に金網１５を有する吸込防止機構１３が設けられているため、比較的薄いトレイパック１２や緩衝シート３１の吸引による吸引口５内への吸い込みが確実に防止されて、吸着取上げ時のトレイパック１０等の反りや変形が抑えられ、積層状態のトレイパック１０の分離及び取上げをよりスムーズに行うことができる。
【００４６】
これらのことから、この吸着装置１を農産物Ｗの選別包装施設２２のトレイパック供給装置２７に適用することにより、積層状態のトレイパック群１９から最上段のトレイパック１０を一枚づつ確実に分離して取上げて、箱詰め位置Ｓ１にセットすることができる。その結果、吸着取上げミスの発生頻度を従来の方式に比較して極めて小さくすることができて、農産物Ｗの箱詰め包装作業における作業効率を大幅に向上させることが可能になる。
【００４７】
また、吸着装置１のシート状部材４を、トレイパック１０の被吸着面１０ａの凹凸形状に係わらず密着させることができるため、１台（１種類の）の吸着装置１で各種形態のトレイパック１０や緩衝シート３１を吸着して取上げることができ、各トレイパック１０に応じて吸着装置１を一々用意する必要がなくなり、トレイパック供給装置２７自体の構成を簡素化することができると共に、安価に形成することができる。さらに、柔軟なシート状部材４でトレイパック１０の被吸着面１０ａとの隙間をできるだけ塞いだ状態で、吸引装置を作動させることができるため、吸引装置自体の吸引容量を過大なものとする必要がなくなり、必要最小限の容量で実現できて、より安価な吸着装置１（トレイパック供給装置２７）が得られる。
【００４８】
図１２〜図１５は、本発明に係わる吸着装置のそれぞれ他の実施例を示し、以下、上記実施例と同一部位には同一符号を付して説明する。先ず、図１２及び図１３に示す吸着装置１の特徴は、円環状の錘部材６を吸引口５の外側に複数条配設した点にある。すなわち、多数の錘６ａを連結することによって鎖状に形成された長さが異なる例えば３種類の錘部材６を、吸引口５の外側に所定の間隔を有して円環状に配設する。
【００４９】
この場合、各条の錘部材６はその各錘６ａの重量（大きさ）等を全て同一としても良いし、各条毎に異ならせても良い。この実施例の吸着装置１においても、錘部材６によってシート状部材４の被吸着面１０ａへの密着性を高めることができて、上記実施例と同様の作用効果が得られる、また、複数条の錘部材６のうちの少なくとも一つを被吸着面１０ａの凹部１６内に容易にはめ込むことができる等、被吸着面１０ａの形状により的確に対応し、シート状部材４のトレイパック１０への密着性をより高めることができるという作用効果も得られる。
【００５０】
また、図１４に示す吸着装置１の特徴は、錘部材６を鎖状ではなく分割状態としてこれをシート状部材４の内面４ｃに所定の間隔を有して配設した点にある。この実施例の吸着装置１においても、錘部材６によってシート状部材４の被吸着面１０ａへの密着性を高めることができて、上記実施例と同様の作用効果を得ることができる。また、所定間隔で配設された錘部材６間に十分な柔軟性が得られて、被吸着面１０ａへの密着性がより高まると共に、予めトレイパック１０の形状が特定化されている場合等に、例えば吸着し難い部分にのみ錘部材６を効果的に配設することができたり、シート状部材４の構成をより簡略化することができるという作用効果も得られる。
【００５１】
さらに、図１５に示す吸着装置１の特徴は、錘部材６を吸引口５の外側にランダムに配設した点にある。この錘部材６は、図１２と同様、その重量や形状を全て同一に設定することもできるし異ならせることもでき、この実施例の吸着装置１においても、錘部材６でシート状部材４の被吸着面１０ａへの密着性を高めることができて、上記実施例と同様の作用効果が得られる。また、ランダムに配設された錘部材６により、シート状部材４の全域に所定の張力を容易に付与させることができると共に、各種形状の被吸着面１０ａに容易に対応することができて、その汎用性を向上させることができるという作用効果も得られる。
【００５２】
なお、本発明に係わる吸着装置１は、上記した各実施例のそれぞれに限定されるものでもなく、各実施例を適宜に組み合わせて構成することもできるし、錘部材６の形状や配設状態も適宜に設定することができる。また、上記実施例においては、吸着して取上げる物品として、農産物収容用のトレイパック１０や緩衝シート３１を例にして説明したが、本発明に係わる吸着装置は、各種板材やシート材等の積み重ねられる各種物品の吸着取出しに適用することができる。さらに、上記実施例における基盤２の形状や吸引口５の大きさ及び形状、選別包装施設２２、トレイパック供給装置２７、箱詰め装置２８及び空箱供給装置２９の構成等も一例であって、本発明に係わる各発明の要旨を逸脱しない範囲において種々変更可能であることはいうまでもない。
【００５３】
【発明の効果】
以上詳述したように、請求項１記載の発明によれば、その内周縁部が吸引口の周囲全面に亘って固着され、その外周縁部が基盤の外周縁部に固着されると共に、基盤の下面側に弛みを持たせて張設されてその内側に内部空間を形成する柔軟なシート状部材と、該シート状部材の内面に配設されると共に複数の錘を有する錘部材とを備えるため、吸引口からの吸引作用により、基盤の下面側に弛みを持たせて張設されてその内側に内部空間を形成する柔軟なシート状部材が吸引口方向に引っ張られて物品の被吸着面の凹凸形状に沿いつつ吸引口方向に移動すると、シート状部材がその内面に配設された錘部材の複数の錘で下方に所定の張力で引っ張られていることから、シート状部材が被吸着面の凹凸形状に馴染みつつ密着するので、被吸着面の凹凸の段差が大きくかつ急激な形状の物品であっても、シート状部材と物品の被吸着面との密着性を高めることができて、積み重ねられた物品を一枚ずつ確実に分離することができる。
【００５４】
また、請求項２記載の発明によれば、請求項１記載の発明の効果に加え、錘部材が多数の錘を連結することによって鎖状に形成されて吸引口の外側に略環状に配設されているため、錘部材にシート状部材の変形に追従し得る所定の柔軟性を得ることができて、シート状部材の物品の被吸着面への密着性をより高めることができる。
【００５５】
また、請求項３記載の発明によれば、請求項１記載の発明の効果に加え、錘部材が複数の錘を所定の間隔を有して吸引口の外側に略同心円状に配設されているため、錘部材自体に十分な柔軟性が得られ、シート状部材を錘部材で下方に引っ張りつつ錘部材をシート状部材の変形に良好に追従させることができて、シート状部材の物品の被吸着面への密着性をより高めることができる。
【００５７】
また、請求項４記載の発明によれば、請求項１記載の発明の効果に加え、錘部材の多数の錘が吸引口の外側に散乱状態で配設されているため、シート状部材の略全域を下方に所定の張力で引っ張ることができ、物品の被吸着面の形状に係わらず良好な密着状態を得ることができると共に、各種形態の被吸着面に対応することができて、汎用性を向上させることができる。また、請求項５の発明によれば、請求項１記載の発明の効果に加え、シート状部材には、その内側の内部空間内の空気を換気させる通気孔が設けられているため、吸引口からの吸引作用によるシート状部材の移動時に、通気孔から外気が導入されるので、この外気によってもシート状部材の移動がよりスムーズに行われ、シート状部材の被吸着面への密着性をより一層高めることができる等の効果を奏する。
【図面の簡単な説明】
【図１】本発明に係わる物品取出し用の吸着装置の一実施例を示す一部破断した斜視図
【図２】同その断面図
【図３】同底面図
【図４】同農産物収容用のトレイパックの断面図
【図５】同吸着装置の吸引動作時の断面図
【図６】同吸着装置を使用した農産物の選別包装施設の要部平面図
【図７】同図６のＡ−Ａ線矢視図
【図８】同図６のＢ−Ｂ線矢視図
【図９】同図６のＣ−Ｃ線矢視図
【図１０】同トレイパック供給装置の動作説明図
【図１１】同トレイパック供給装置の他の動作説明図
【図１２】本発明に係わる物品取出し用の吸着装置の他の実施例を示す断面図
【図１３】同その底面図
【図１４】本発明に係わる物品取出し用の吸着装置のさらに他の実施例を示す底面図
【図１５】本発明に係わる物品取出し用の吸着装置のさらに他の実施例を示す底面図
【符号の説明】
１・・・・・・・・吸着装置
２・・・・・・・・基盤
３・・・・・・・・弾性体
４・・・・・・・・シート状部材
４ａ・・・・・・・内周縁部
４ｂ・・・・・・・外周縁部
４ｃ・・・・・・・内面
４ｄ・・・・・・・外面
５・・・・・・・・吸引口
６・・・・・・・・錘部材
６ａ・・・・・・・錘
６ｂ・・・・・・・糸
７・・・・・・・・固定糸
１０・・・・・・・トレイパック
１０ａ・・・・・・被吸着面
１３・・・・・・・吸込防止機構
１５・・・・・・・金網
１６・・・・・・・凹部
１７・・・・・・・仕切壁
１７ａ・・・・・・凹み
１９・・・・・・・トレイパック群
２２・・・・・・・選別包装施設
２７・・・・・・・トレイパック供給装置
２８・・・・・・・箱詰め装置
２９・・・・・・・空箱供給装置
３３・・・・・・・補助吸着装置[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an adsorbing device for taking out articles, which can take out tray packs containing agricultural products such as apples, pears and tomatoes one by one from the stacked state.
[0002]
[Prior art]
Conventional apparatuses for adsorbing and taking out articles are disclosed in, for example, Japanese Utility Model Laid-Open No. 3-115212, Japanese Patent Publication No. 55-43876, or Japanese Utility Model Laid-Open No. 55-175089. First, an adsorbing holder (referred to as adsorbing device A) of an article disclosed in Japanese Utility Model Publication No. 3-115212 is formed by providing a non-breathable rubber sponge or the like in an annular shape with a predetermined width at the lower end opening of an adsorbing pad. is there.
[0003]
In addition, the sucker for heavy object conveyance (referred to as adsorption device B) disclosed in Japanese Patent Publication No. 55-43876 is provided with a hollow pressurization chamber around a reverse funnel-shaped vacuum chamber, and air pressure or water is provided in the pressurization chamber. An intake port connected to the fluid source is provided, and the vacuum chamber is connected to the vacuum source. By press-fitting the pressurizing chamber, a heavy object having a flat surface is adsorbed in combination with the internal pressure and the suction force of the vacuum chamber. It is what I did. Furthermore, the suction cup (referred to as adsorption device C) disclosed in Japanese Utility Model Publication No. 55-175089 is provided with a breathable sponge plate on the lower surface of a porous plate attached to the lower surface side of the suction cup body. It is suitable for adsorption of flat articles such as tiles.
[0004]
[Problems to be solved by the invention]
However, the suction device A is an improved version of a commonly used bellows-type suction disk, and is an article having a relatively small difference in unevenness on the surface to be attracted or a loose article (for example, a streak shape or a wart shape). Or an article having mesh-like irregularities), and suitable for adsorbing and holding articles such as spherical fruits and vegetables. There was a problem that it was likely to occur. That is, in the case of an article with a large difference in unevenness or an article that is concentrated on a portion with unevenness, the unevenness of the unevenness portion may not be absorbed within the elastic deformation and deformation range of the annular rubber sponge. In addition, the annular rubber sponge does not surely come into contact with the surface to be adsorbed, and an adsorption error is likely to occur.
[0005]
Further, in the adsorption device B, since the elastic adsorption wall such as rubber forming the pressurizing chamber is adsorbed on the adsorption surface of the article, within the elastic deformation and deflection deformation range of the adsorption wall, It is difficult to absorb the unevenness of the surface to be adsorbed. Further, even in the adsorption device C, since the article is adsorbed by the compression deformation of the sponge, it is difficult to absorb the unevenness of the surface to be adsorbed within the compression deformation range of the sponge. Therefore, even in the suction devices B and C, when the article has an abrupt and large step on the suction surface, the same problem as that of the suction device A occurs.
[0006]
By the way, as an example of an article in which the unevenness of the surface to be adsorbed changes suddenly and greatly, a tray pack for accommodating agricultural products used when packing various agricultural products in a packaging box is raised. This tray pack is formed by adjoining a plurality of concave portions having large steps in a predetermined arrangement, and the arrangement, shape and size of the concave portions are set in various ways. When packaging agricultural products in such a tray pack, it is generally performed automatically by a boxing robot or the like installed in the agricultural product sorting and packaging facility. It is necessary to pick up each tray pack from the group one by one and set it in the boxing position.
[0007]
When picking up each tray pack from this tray pack group, at the time of picking up, a specific type of tray pack is limited. For example, with the suction device A, a suction pad is placed on the bottom of the concave portion of the tray pack or a flat convex portion. It is possible to pick up the material by contact. However, in a sorting and packaging facility that handles a wide variety of tray packs, it is necessary to prepare a number of suction pads according to the arrangement, shape, and size of the recesses. It is not practical in terms of operability and arrangement space.
[0008]
In addition, the tray pack has a partition wall (rising wall) between the adjacent recesses that has the same shape as the outer peripheral edge (upper end surface) or has a recess in the upper part of the partition wall. A wide variety. Therefore, in the case of a tray pack in which the partition wall is all the same as the outer peripheral edge of the tray pack and air leakage is difficult to occur when a flat plate or the like is turned down from above, the purpose is to pick up an article having a flat surface. The possibility of being adsorbed by the adsorption device A or the adsorption device B is high. However, in the case of a tray pack where the height of the partition wall is low or the dents are present, a gap is formed only by contacting the flat suction surface. Is difficult to adsorb. Therefore, it is conceivable to selectively use the adsorption devices B and C depending on the shape of the partition wall of the tray pack, but this is also practically difficult and not universal.
[0009]
That is, in the suction device A, when there are various arrangements, shapes, and the like of the concave portions of the tray pack, it is difficult to reliably pick up the various types of tray packs using the suction device A. The adsorption device A is dedicated for each form of tray pack, resulting in an increase in the cost of the adsorption device A itself. In addition, in the adsorption device B and the adsorption device C, because there is a limit to the compression deformation of the adsorption wall and sponge, it is possible to stably adsorb tray packs having various partition wall heights between adjacent recesses. Difficult to do. Further, even if the tray packs having the same shape are picked up by the suction devices A to C, since the thickness of the tray pack is relatively thin, the entire tray pack is likely to be warped or bent at the time of suction. There is also a problem that it is easy to invite.
[0010]
  The present invention has been made in view of such circumstances, and the object of the invention of claim 1 is that even if the surface to be adsorbed of the article is not constant or the steps of the unevenness are abrupt. , Improve the adhesion of the sheet-like member to the surface to be adsorbed and reliably separate the articles one by oneShiIt is an object of the present invention to provide an adsorbing device for taking out an article. In addition to the object of the invention described in claim 1, the object of the invention described in claim 2 or 3 is to provide an adsorbing device for taking out articles that can further improve the adhesion of the sheet-like member to the surface to be adsorbedYouThere is to be. Claims4In addition to the object of the invention described in claim 1, an object of the invention described in the above is to provide an adsorbing device for taking out an article which can easily cope with articles of various shapes and improve versatility.In addition to the object of the invention described in claim 1, an object of the invention described in claim 5 is to provide an adsorbing device for taking out articles that can further enhance the adhesion of the sheet-like member to the surface to be adsorbed. is there.
[0011]
[Means for Solving the Problems]
  In order to achieve this object, the invention described in claim 1 of the present invention isAn adsorbing device for taking out an article by adsorbing and separating the articles one by one from an article group in which a plurality of articles are stacked,A suction port connected to the suction device penetrates vertically in the center.do itProvidedFlatThe foundation,Its inner periphery isOver the entire area around the suction portThe outer peripheral edge is fixed to the outer peripheral edge of the base, and the lower surface side of the base is fixed.Stretched with slackFlexible to form an internal space insideA sheet-like member and the sheet-like membersurfaceAnd arranged inWith multiple weightsAnd a weight member. The sheet-like member used for carrying out this adsorbing device does not necessarily require the function of not allowing gas to pass through in a strict sense, as long as it can secure a negative pressure capable of adsorbing and holding an article. For example, it may be any of textile products (cloth) of various fabrics and synthetic resin sheet members.
[0012]
  By configuring in this way, for example, the base is lowered and its lower surface~ sideStretched onAn internal space is formed insideWhen the sheet-like member is brought into contact with the suction surface of the article and the suction device is operated, the baseSuction port on the bottom sideThe sheet-like member provided over the entire circumference of theFrom the suction portIt moves in the direction of the suction port while following the unevenness of the attracted surface by the suction action. By moving this sheet-like member,SlackThe sheet-like member stretched with a grip fits into the surface to which the article is adsorbed.surfaceThe weight member disposed in theDown at a predetermined tensionBecauseBecause the sheet-like member is closely attached to the uneven shape of the surface to be adsorbed,The adhesion between the sheet-like member and the surface to be adsorbed of the article is enhanced. The stacked articles are surely separated one by one by sufficient adhesion of the sheet-like members..
[0013]
The invention according to claim 2 is characterized in that the weight member is formed in a chain by connecting a large number of weights and is arranged in a substantially annular shape outside the suction port. This invention is characterized in that a plurality of weights of the weight member are arranged substantially concentrically outside the suction port with a predetermined interval. With this configuration, the weight member is formed by, for example, connecting a large number of weights made of lead or metal pieces in a chain shape, or by arranging a plurality of weights in a substantially annular shape at predetermined intervals. As a result, the weight member itself can be flexibly adapted to follow the deformation of the sheet-like member, and the adhesion of the sheet-like member to the attracted surface of the article is further increased.
[0015]
  Claims4The described invention is characterized in that a large number of weights of the weight member are arranged in a scattered state outside the suction port. By configuring in this way, a large number of weights forming the weight member are arranged in a scattered state outside the suction port.DownIn addition to being able to be pulled with a predetermined tension, good adhesion can be obtained regardless of the shape of the surface to be adsorbed of the article, and it can be applied to the adsorption of various articles, thereby improving its versatility.The invention according to claim 5 is characterized in that the sheet-like member is provided with a vent hole for ventilating the air in the internal space. With this configuration, since the outside air is introduced from the vent hole when the sheet-like member is moved by the suction action from the suction port, the sheet-like member is moved more smoothly by the outside air. The adhesion of the member to the attracted surface can be further enhanced.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
1 to 5 show an embodiment of an adsorbing apparatus for taking out articles according to the present invention, FIG. 1 is a partially broken perspective view, FIG. 2 is a sectional view, FIG. 3 is a bottom view, and FIG. Is a cross-sectional view of a tray pack for accommodating agricultural products, and FIG. 5 is a cross-sectional view during a suction operation.
[0017]
1 to 3, the adsorption device 1 has a flat base 2 made of an iron plate or the like, and a flexible sheet-like member is provided on the lower surface 2b of the base 2 via an elastic body 3 made of sponge or the like. 4 is attached. The sheet-like member 4 is formed in a relatively shallow, substantially bag shape by a thin sheet having no air permeability such as various fabric fiber products (for example, polyester fibers) and synthetic resin sheets (for example, polyethylene sheets). ing.
[0018]
The sheet-like member 4 has its inner peripheral edge 4a fixed to the entire opening of the circular suction port 5 provided at the center position of the base 2 and the elastic body 3 by appropriate fixing means, and its outer peripheral edge. 4b is fixed to the outer peripheral edge of the base 2 (and the elastic body 3) by an appropriate fixing means such as adhesion. Further, inside the sheet-like member 4, a weight member 6 formed in a chain shape by connecting a large number of weights 6a such as lead and metal pieces with a thread 6b is arranged in an annular shape. The member 6 is integrated with the sheet-like member 4 by being sewn with a fixing thread 7 at a predetermined position on the inner surface 4 c of the sheet-like member 4.
[0019]
  Thereby, the sheet-like member 4 is pulled to the lower surface 2b side (the lower surface side of the elastic body 3) of the base 2 with a tension corresponding to the weight of the weight member 6.EtIn addition, it is fixed in a state having a predetermined slackness, and an annular internal space 8 is formed therein. In addition, arrangement | positioning to the inner surface 4c of the sheet-like member 4 of the weight member 6 is not restricted to fixation by sewing, for example, each weight 6a may be fixed with an adhesive agent, or the inner surface 4c of the sheet-like member 4 may be fixed. An appropriate structure can be employed, such as providing a bag-like weight housing portion and simply inserting each weight 6a into the weight housing portion without being connected by the thread 6b. It is of course possible to use a metal chain as the weight member 6.
[0020]
One end of an intake pipe 9 is connected to the suction port 5 portion on the upper surface 2a side of the base 2, and the other end of the intake pipe 9 is connected to a suction device (not shown). A space 11 (see FIG. 5) formed by the outer surface 4d (lower surface) of the sheet-like member 4 and the attracted surface 10a of the tray pack 10 as an article through the suction port 5 by the operation of the suction device will be described later. As a result of the negative pressure, the sheet-like member 4 having a predetermined slackness moves while being familiar with the shape of the attracted surface 10a of the tray pack 10.
[0021]
In addition, a vent 12 for ventilating the air in the internal space 8 is provided at a diagonal position of the base 2 at a fixing portion between the outer peripheral edge 4b of the sheet-like member 4 and the base 2, and the base 2 and the elastic body 3 are provided. At an appropriate position, an air blower (not shown) that supplies air into the sheet-like member 4 to forcibly inflate and return to the original state is provided. These ventilation holes 12 and air blowing holes are not always necessary. For example, the ventilation holes 12 are omitted, and it is possible to ventilate the internal space 8 by the material (predetermined ventilation) of the sheet-like member 4 itself. In addition, the sheet-like member 4 can be restored by its own weight.
[0022]
A suction prevention mechanism 13 is provided in the suction port 5. The suction prevention mechanism 13 is formed by a support plate 14 fixed to the lower end of the intake pipe 9 and a metal mesh 15 fixed to the lower end of the support plate 14. ) Is set to be slightly above the lower surface of the elastic body 3. The suction prevention mechanism 13 prevents the suction into the suction port 5 of the tray pack 10 or the like that is thin and easily deformed.
[0023]
Next, the operation of sucking and taking out the tray pack 10 for storing agricultural products by the suction device 1 will be described. First, as shown in FIGS. 1 and 4, a general tray pack 10 for accommodating agricultural products has a rectangular parallelepiped shape in a plan view, and a foamed resin so that a large number of recesses 16 have a predetermined arrangement on the adsorbed surface 10a. Etc. are formed. The partition walls 17 (rising walls) between the adjacent recesses 16 of the tray pack 10 are respectively formed with recesses 17a for facilitating the extraction of agricultural products accommodated in the recesses 16 and the recesses 16. Flat portions 18 are formed in the middle and outer peripheral edge portions. The tray packs 10 thus formed are stacked by lightly fitting the concave portions 16 of the upper and lower tray packs 10 to form a tray pack group 19 as shown in FIG.
[0024]
When the uppermost tray pack 10 is sucked and picked up (lifted) from the tray pack group 19 by the suction device 1, the suction device 1 ( The intake pipe 9 and the base 2) are lowered to press the outer surface 4 d of the sheet-like member 4 against the attracted surface 10 a of the tray pack 10. At this time, since the sheet-like member 4 is in a state of slacking downward with a predetermined tension, the sheet-like member 4 contacts the flat portion 18 of the attracted surface 10a of the tray pack 10 in a contracted state and has a concave portion. It will be in the state which contacted 16 and the partition wall 17 part with the predetermined pressure (pressure according to the amount of descending). Further, for example, in the recess 17a portion of the partition wall 17 of the surface to be attracted 10a of the tray pack 10, the uneven step of the surface to be attracted 10a changes abruptly, so there is a slight difference between the sheet-like member 4 and the tray pack 10. The location which has this clearance gap will also arise.
[0025]
However, this gap is closed by operating the suction device in a state where the sheet-like member 4 is pressed against the attracted surface 10a. That is, as shown in FIG. 5, the inside of the space 11 formed by the outer surface 4d of the sheet-like member 4 and the attracted surface 10a of the tray pack 10 becomes negative pressure via the intake pipe 9 and the suction port 5. The flexible sheet-like member 4 is pulled and moved in the direction of the suction port 5 by the pressure. When the sheet-like member 4 moves in the direction of the suction port 5, the sheet-like member 4 is flexible and is pulled downward with a predetermined tension by the weight member 6. The sheet-like member 4 moves along the difference in level, and the gap is closed by the sheet-like member 4.
[0026]
By closing the gap, the space 11 is hermetically sealed, and the sheet-like member 4 is pressed by a predetermined suction pressure so that the flat portion 18 of the suction surface 10a of the tray pack 11, the concave portion 16, and the concave portion 17a of the partition wall 17. Adheres to the entire area. At this time, since the weight member 6 is disposed inside the sheet-like member 4, the weight member 6 fits into the recess 16, and the adhesion of the sheet-like member 4 to the attracted surface 10 a is increased. Good adhesion can be obtained in a short time. In this state, when the suction device 1 is raised, the uppermost tray pack 10 is separated from the tray pack 10 directly below and picked up.
[0027]
When the gap is closed, the space 11 is hermetically sealed, and the thin tray pack 10 is easily sucked into the suction port 5. However, this suction is prevented by the wire mesh 15 of the suction prevention mechanism 13 provided at the suction port 5, so that deformation such as warping of the tray pack 10 at the time of suction is eliminated, and the upper and lower tray packs 10 are smoothly separated. Further, when the air holes 12 are provided in the outer peripheral edge portions 4b at the four corners of the sheet-like member 4 when the sheet-like member 4 is moved, the outside air is introduced from the air holes 12, so that the outside air also forms a sheet-like shape. The movement of the member 4 is performed more smoothly.
[0028]
Then, after the picked-up tray pack 10 is transferred to a predetermined position in a sorting and packaging facility 22 described later, for example, the operation of the suction device is stopped so that the sheet-like member 4 is attracted surface 10a of the tray pack 10. The tray pack 10 is set at a predetermined position. At this time, when the suction action from the suction port 5 is stopped by stopping the suction device, the sheet-like member 4 hangs down by its own weight, for example, returns to the original swollen state and becomes a reusable state. The return of the sheet-like member 4 can also be performed by forcibly (and in a short time) the sheet-like member 4 is blown by the air blown from the air blowing port described above.
[0029]
As described above, according to the suction device 1 of the present invention, the flexible sheet-like member 4 is provided in a state of being loosened while being given a predetermined tension by the weight member 6, and the sheet-like member 4 is sucked by a suction action. By moving in the direction of the mouth 5, the sheet-like member 4 is brought into close contact with the uneven shape of the attracted surface 10 a of the tray pack 10. Therefore, even if the tray pack 10 has a large and abrupt shape of the unevenness of the attracted surface 10a, the sheet-like member 4 can be reliably brought into close contact with the attracted surface 10a. Regardless of the shape, the tray pack 10 having various shapes can be picked up by one suction device 1.
[0030]
Next, an outline of the agricultural product sorting and packaging facility using the adsorption device 1 will be described with reference to FIGS. 6 to 9, the sorting and packaging facility 22 has a sorting conveyor 23 for sorting supplied agricultural products, and the sorting conveyor 23 has two pairs in a direction perpendicular to the conveying direction. A plurality of storage accumulation conveyors 24 are connected. Each of the storage and accumulation conveyors 24 is provided with a discharge device 25 on the upstream side and a boxing portion 26 on the downstream side.
[0031]
The boxing unit 26 includes a tray pack supply device 27 to which the suction device 1 is mounted, a boxing device 28, an empty box supply device 29, and the like. The trepack supply device 27 is arranged in a single row on the downstream side of the storage and accumulation conveyor 24 in a plurality of rows, for example, a mounting table 30 for three types of tray packs 10 of 18 balls, 20 balls, and 24 balls, and a buffer. A mounting table 32 for the sheet 31 is provided, and the suction device 1 can be positioned above the mounting tables 30 and 32. An auxiliary suction device 33 for lifting the upper end of the tray pack 10 to a predetermined position is disposed above one corner of the mounting tables 30 and 32 before the tray pack 10 is picked up by the suction device 1. Yes.
[0032]
The adsorption device 1 is attached to the tray pack supply device 27 as follows. That is, as shown in FIG. 7, a support rod 34 is connected to the upper end of the intake pipe 9, and a bearing 35 is disposed on the upper portion of the support rod 34. One end of each of the arms 36a and 36b is connected. The other end of the parallel arm 36a is connected to the motor 37, the other end of the parallel arm 36b is connected to the support shaft, and the frame 38 to which the other ends of the motor 37 and the parallel arms 36a and 36b are fixed is A guide 39 is engaged with a guide rod 40 that moves up and down by the rotation of the motor 41.
[0033]
As a result, when the motor 37 rotates, the pair of parallel arms 36a and 36b rotate in the horizontal plane as indicated by an arrow A between the positions of the mounting tables 30 and 32 shown in FIG. 6 and the packing position S1. Further, as the motor 41 rotates, the frame 38 (that is, the pair of parallel arms 36a and 36b) moves up and down in the direction indicated by the arrow B (Z direction) in FIG. As 42 rotates, it moves in the direction of arrow C (Y direction).
[0034]
The boxing device 28 has a boxing head 44 having a predetermined number of suction pads 45. The boxing head 44 moves in the Y direction by the rotation of the motor 46 shown in FIG. It is provided so as to move in the Z direction and further move in the X direction by the rotation of the motor 48 shown in FIG. The boxing head 44 sucks and picks up the produce W on the tray 50 waiting at the boxing standby position S2 of the transport conveyor 49 connected to the downstream side of the storage and accumulation conveyor 24 by the suction pad 45. Then, the agricultural product W moves forward in the X direction, and is picked up by the tray pack supply device 27 and accommodated (boxed) in the recess 16 of the tray pack 10 set at the boxing position S1.
[0035]
As shown in FIG. 7, the empty box supply device 29 includes an empty box lowering device 51 installed on the side opposite to the boxing position S1 of the boxing device 28, and an empty box 52 connected to the lower end of the empty box lowering device 51. An empty box transport conveyor 53 that transports to the lower side of the boxing position S1 and an empty box lifting device 54 that lifts the empty box 52 that has been transported to the lower side of the boxing position S1 to the boxing position S1. For example, four rows of distribution conveyors 55 for supplying four types of empty boxes 52 are connected to the empty box lowering device 51, and the empty boxes 52 conveyed by the distribution conveyor 55 are appropriately connected. It is selected and supplied to the empty box lowering device 51.
[0036]
The auxiliary suction device 33 includes a suction pad 56 that moves up and down by an air cylinder 57 shown in FIGS. 7 and 8, and a pair of resistance members 58 shown in FIGS. 10 and 11, respectively. The tray pack 10 on the mounting table 30 is disposed so as to be able to enter and come into contact with the recess 16 at the corner end portion of the tray pack 10 and to contact with the corner end portion of the buffer sheet 31 on the mounting table 32. . Further, the resistance members 58 each have a plate body 59 having five triangular engaging portions 59a, and are arranged at positions where they can come into contact with both ends in the longitudinal direction of the tray pack 10 with a predetermined pressure. .
[0037]
Here, an outline of the flow of the agricultural products W and the empty boxes 52 in the sorting and packaging facility 22 will be described. First, the agricultural products W for which the equal class or the like has been determined (sorting classification) are supplied from the sorting conveyor 23 onto the predetermined storage and accumulation conveyor 24 by the operation of the discharge device 25 corresponding to the classification and stored and accumulated. Is done. The stored and accumulated farm products W are appropriately supplied onto a transport conveyor 49 connected to the downstream side of the storage and accumulation conveyor 24, and waited at the boxing standby position S2. On the other hand, the four types of empty boxes 52 are transported by the distribution conveyor 55 in a manufactured state (in a state where the upper surface is opened), stopped at the position of each empty box lowering device 51, and waited. An empty box 52 is supplied into the empty box lowering device 51. The empty box 52 is conveyed by an empty box transfer conveyor 53, and is set to two boxing positions S1 by an empty box raising device 54, respectively.
[0038]
Then, when a predetermined number of predetermined agricultural products W are waited at the boxing standby position S2 and the empty box 52 is set at the boxing position S1, the tray pack supply device 27 is operated to adsorb the sheet-like member 4 as described above. Thus, the uppermost tray pack 10 of the predetermined tray pack group 19 is picked up. The uppermost tray pack 10 is picked up as follows. That is, first, as shown in FIG. 10, the auxiliary suction device 33 is operated so that the suction pad 56 is positioned in the recess 16 at the end of the tray pack 10, and the suction device is operated so that the suction pad 56 is recessed. 16 Adhere to the inner surface (adsorption).
[0039]
In this state, the suction pad 56 is lifted to the standby position indicated by the solid line in FIG. 10, and then the suction is released, and the suction pad 56 is moved to a retracted position that does not hinder the rotation of the suction device 1 (two points in FIG. Further increase to the position of the chain line. When the tray pack 10 is sucked and lifted by the suction pad 56, the end portion of the tray pack 10 comes into contact with the engaging portion 59a of the one resistance member 58, so that the uppermost tray pack 10 is placed directly below the tray. Separated from the pack 10. Then, the inclined tray pack 10 engaged by the engaging member 58 is brought into contact with the sheet-like member 4 of the suction device 1 as shown in FIG. .
[0040]
The tray pack 10 picked up by the suction device 1 in this way is transferred to the boxing position S1 and set in the empty box 52 as the parallel arms 36a and 36b rotate. In this state, the boxing device 28 is operated, and a predetermined number of agricultural products W on the tray 50 waiting at the boxing standby position S2 are picked up and picked up by the suction pad 45 of the boxing head 44, and the boxing position is picked up. It is moved to S1.
[0041]
The agricultural products W moved to the boxing position S1 are accommodated, for example, in a row in the recess 16 of the tray pack 10 by the lowering of the boxing head 44. By repeating this operation a predetermined number of times, the agricultural products W having a predetermined number of balls are produced. It is accommodated (boxed) in each recess 16 of the tray pack 10. When the agricultural products W are packed in all the recesses 16 of the first tray pack 10, the tray pack supply device 27 is operated to adsorb the uppermost buffer sheet 31 stacked on the mounting table 32. The sheet is picked up by the sheet-like member 4 of the apparatus 1.
[0042]
The suction pickup of the buffer sheet 31 is also picked up by the same action as the action of the sheet-like member 4 on the tray pack 10, and the buffer sheet 31 is transferred to the boxing position S1 and the agricultural product W in the boxed empty box 52 is picked up. Placed on top. When the packing form is two-tiered, the next tray pack 10 is further stacked on the buffer sheet 31 and the agricultural products W are boxed, and when the predetermined number of boxes are packed, the boxing operation is finished. The packaging box in which the agricultural product W is packed is conveyed downstream by the product conveyor, and the empty box 52 is supplied to the next empty box 52 by the empty box supply device 29 at the packaging position S1 where the packaging box in which the agricultural product W is packed is discharged. Is supplied.
[0043]
As described above, according to the suction device 1 of the above-described embodiment, the flexible sheet-like member 4 is attached to the outer periphery of the lower surface 2b of the suction port 5 of the base 2 in a loosened state, and a chain-like shape is formed inside the sheet-like member 4. Since the weight member 6 is provided, the sheet-like member 4 can be moved in the direction of the suction port 5 by operating the suction device while applying a predetermined tension to the sheet-like member 4. Can be brought into close contact with the attracted surface 10a. As a result, the sheet-like member 4 can be satisfactorily adsorbed to the entire area of the attracted surface 10a even in the tray pack 10 in which the uneven step having the recess 17a in the partition wall 17 is large and steep. The tray pack 10 can be reliably picked up without causing a mistake in suction.
[0044]
In particular, when the sheet-like member 4 is moved by suction, the sheet-like member 4 is pulled downward with a predetermined tension by the weight member 6, and the weight member 6 is chained by connecting a number of weights 6 a with the thread 6 b. Since the formed flexible member can follow the deformation of the sheet-like member 4, the weight member 6 fits well in the recess 16 or the like, and the adhesion of the sheet-like member 4 to the attracted surface 10 a. The tray pack 10 can be picked up in a shorter time.
[0045]
Further, since the sheet-like member 4 is attached to the base 2 via the elastic body 3 having a predetermined thickness, the elastic deformation of the elastic body 3 absorbs some unevenness of the attracted surface 10a of the tray pack 10. The sheet-like member 4 can be adsorbed to the tray pack 10 more smoothly. Further, since the suction port 5 is provided with the suction prevention mechanism 13 having the metal mesh 15, suction into the suction port 5 due to suction of the relatively thin tray pack 12 and the buffer sheet 31 is reliably prevented, and the suction pickup is performed. Warping and deformation of the tray pack 10 and the like at the time can be suppressed, and the stacked tray pack 10 can be separated and picked up more smoothly.
[0046]
Therefore, by applying this adsorption device 1 to the tray pack supply device 27 of the sorting and packaging facility 22 for the produce W, the uppermost tray pack 10 is reliably separated from the stacked tray pack group 19 one by one. And can be set at the packing position S1. As a result, the frequency of occurrence of suction pick-up mistakes can be made extremely small compared to the conventional method, and the work efficiency in the boxing and packaging operation of the agricultural products W can be greatly improved.
[0047]
Further, since the sheet-like member 4 of the suction device 1 can be brought into close contact regardless of the uneven shape of the suction target surface 10a of the tray pack 10, the tray packs of various forms can be obtained with one (one type) of the suction device 1. 10 and the buffer sheet 31 can be picked up and there is no need to prepare the suction device 1 according to each tray pack 10, the configuration of the tray pack supply device 27 itself can be simplified, and the cost is low. Can be formed. Further, since the suction device can be operated with the flexible sheet-like member 4 closing the gap with the suction surface 10a of the tray pack 10 as much as possible, it is necessary to increase the suction capacity of the suction device itself. Therefore, the suction device 1 (tray pack supply device 27) can be realized with the minimum necessary capacity and more inexpensive.
[0048]
12 to 15 show other embodiments of the adsorption apparatus according to the present invention. Hereinafter, the same parts as those in the above-described embodiment will be described with the same reference numerals. First, the suction device 1 shown in FIGS. 12 and 13 is characterized in that a plurality of annular weight members 6 are disposed outside the suction port 5. That is, for example, three types of weight members 6 having different lengths formed in a chain by connecting a large number of weights 6 a are arranged in an annular shape outside the suction port 5 with a predetermined interval.
[0049]
In this case, the weight members 6 of the respective strips may have the same weight (size) or the like of the respective weights 6a, or may be different for each strip. Also in the suction device 1 of this embodiment, the weight member 6 can enhance the adhesion of the sheet-like member 4 to the suction surface 10a, and the same effect as the above embodiment can be obtained. It is possible to easily fit at least one of the weight members 6 into the recessed portion 16 of the attracted surface 10a. The effect that adhesiveness can be improved more is also acquired.
[0050]
  Further, the suction device 1 shown in FIG. 14 is characterized in that the weight member 6 is not in a chain shape but is divided and disposed on the inner surface 4c of the sheet-like member 4 with a predetermined interval..Also in the suction device 1 of this embodiment, the weight member 6 can improve the adhesion of the sheet-like member 4 to the suction surface 10a.WhenSimilar effects can be obtained. Moreover, sufficient flexibility is obtained between the weight members 6 arranged at a predetermined interval, the adhesion to the attracted surface 10a is further increased, and the shape of the tray pack 10 is specified in advance. In addition, for example, it is possible to effectively dispose the weight member 6 only in a portion that is difficult to adsorb, or to obtain a function and effect that the configuration of the sheet-like member 4 can be further simplified.
[0051]
Further, the suction device 1 shown in FIG. 15 is characterized in that the weight member 6 is randomly arranged outside the suction port 5. The weight member 6 can be set to have the same weight or shape as shown in FIG. 12, or can be made different. In the suction device 1 of this embodiment, the weight member 6 can be used to form the sheet-like member 4. Adhesiveness to the attracted surface 10a can be improved, and the same effect as the above embodiment can be obtained. In addition, the weight member 6 randomly arranged can easily apply a predetermined tension to the entire area of the sheet-like member 4, and can easily deal with the suction surface 10a of various shapes. The effect that the versatility can be improved is also obtained.
[0052]
In addition, the adsorption | suction apparatus 1 concerning this invention is not limited to each of each above-mentioned Example, It can also comprise combining each Example suitably, and the shape and arrangement | positioning state of the weight member 6 are also possible. Can also be set appropriately. Moreover, in the said Example, although the tray pack 10 for accommodating agricultural products and the buffer sheet 31 were demonstrated as an example as articles | goods picked up and picked up, the adsorption | suction apparatus concerning this invention is piled up various board | plate materials, sheet materials, etc. The present invention can be applied to the adsorption and removal of various articles. Furthermore, the shape of the base 2 and the size and shape of the suction port 5 in the above embodiment, the configuration of the sorting and packaging facility 22, the tray pack supply device 27, the boxing device 28, and the empty box supply device 29 are also examples. Needless to say, various modifications can be made without departing from the scope of the invention.
[0053]
【The invention's effect】
  As described in detail above, according to the invention described in claim 1,The inner peripheral edge is fixed to the entire periphery of the suction port, the outer peripheral edge is fixed to the outer peripheral edge of the base, and the lower surface side of the base is stretched with a slack so as to be inside. A flexible sheet-like member that forms a space, and a weight member that is disposed on the inner surface of the sheet-like member and has a plurality of weightsBecause of the suction action from the suction portA flexible base that is stretched with slack on the underside of the base to form an internal space insideSheet-like memberIs pulled in the direction of the suction port and moves in the direction of the suction port along the uneven shape of the suction surface of the article, the sheet-like member is lowered downward with a predetermined tension by a plurality of weights of the weight member disposed on the inner surface thereof. Since the sheet-like member is in close contact with the uneven shape of the attracted surface because it is pulled, even if the article has a large and abrupt shape unevenness of the attracted surfaceThe adhesion between the sheet-like member and the adsorbed surface of the article can be improved, and the stacked articles can be reliably separated one by one..
[0054]
According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, the weight member is formed in a chain shape by connecting a number of weights, and is arranged in a substantially annular shape outside the suction port. Therefore, the weight member can have predetermined flexibility that can follow the deformation of the sheet-like member, and the adhesion of the sheet-like member to the surface to be adsorbed of the article can be further improved.
[0055]
  According to the invention described in claim 3, in addition to the effect of the invention described in claim 1, the weight member has a plurality of weights arranged in a substantially concentric manner outside the suction port with a predetermined interval. Therefore, sufficient flexibility is obtained for the weight member itself, and the sheet-like member isDownward with weight memberWhile pulling onThe weight member is a sheet-like memberIt is possible to satisfactorily follow the deformation of the sheet, and it is possible to further improve the adhesion of the sheet-like member to the attracted surface of the article.
[0057]
  Claims4According to the described invention, in addition to the effect of the invention of the first aspect, since a large number of weights of the weight member are arranged in a scattered state outside the suction port, substantially the entire area of the sheet-like member is covered.DownIt can be pulled with a predetermined tension, and a good adhesion state can be obtained regardless of the shape of the surface to be adsorbed of the article. be able to. According to the invention of claim 5, in addition to the effect of the invention of claim 1, the sheet-like member is provided with the vent hole for ventilating the air in the inner space inside thereof, so the suction port When the sheet-like member is moved by the suction action, outside air is introduced from the vent hole, so that the sheet-like member is moved more smoothly by this outside air, and the adhesion of the sheet-like member to the suction surface is improved. Can be further enhancedThere are effects such as.
[Brief description of the drawings]
FIG. 1 is a partially broken perspective view showing an embodiment of a suction device for taking out articles according to the present invention.
FIG. 2 is a sectional view thereof.
[Figure 3] Bottom view
FIG. 4 is a cross-sectional view of a tray pack for containing the agricultural product
FIG. 5 is a cross-sectional view of the suction device during suction operation
[Fig. 6] Plan view of the main part of the agricultural product sorting and packaging facility using the adsorption device.
7 is a view taken along the line AA in FIG.
FIG. 8 is a view taken along the line BB in FIG.
9 is a view taken along line CC in FIG. 6;
FIG. 10 is a diagram illustrating the operation of the tray pack supply device.
FIG. 11 is a diagram illustrating another operation of the tray pack supply device.
FIG. 12 is a cross-sectional view showing another embodiment of an adsorbing device for taking out articles according to the present invention.
FIG. 13 is a bottom view thereof.
FIG. 14 is a bottom view showing still another embodiment of the suction device for taking out articles according to the present invention.
FIG. 15 is a bottom view showing still another embodiment of a suction device for taking out articles according to the present invention.
[Explanation of symbols]
1 ... Adsorption device
2 ・・・・・・・・ Base
3 ... Elastic body
4 ... Sheet-like member
4a ... Inner peripheral edge
4b .... Outer peripheral edge
4c ・・・・・・・ Inside
4d .... Outer surface
5 ... Suction port
6 ... Weight member
6a ・・・・・ Weight
6b ... thread
7 ... Fixing thread
10 ... Tray pack
10a ... Adsorbed surface
13 .... Suction prevention mechanism
15 ..... Wire mesh
16 .... Recess
17 ...... Partition wall
17a .... Dent
19 ... Tray pack group
22 ···· Sorting and packaging facility
27 ... Tray pack supply device
28 ..... Boxing equipment
29 .... Empty box feeder
33 .... Auxiliary adsorption device

Claims

An adsorbing device 1 for taking out an article 10 by adsorbing and separating the articles 10 one by one from an article group 19 in which a plurality of articles 10 are stacked, and a suction port 5 connected to a suction device at the center is vertically A flat plate-like base plate 2 penetrating into the base plate 2 and its inner peripheral edge portion 4a are fixed to the entire periphery of the suction port 5 , and its outer peripheral edge portion 4b is fixed to the outer peripheral edge portion of the base plate 2. together, are tensioned to have a slack on the lower surface 2b of the base 2 and the flexible sheet-like member 4 to form the inner space 8 on the inside, while being disposed on the inner surface 4c of the sheet-like member 4 adsorption apparatus 1 of the article 10 taken out, characterized in that it comprises a weight member 6 that have a plurality of weights 6a, the.

2. The article 10 for taking out an article 10 according to claim 1, wherein the weight member 6 is formed in a chain shape by connecting a plurality of weights 6a, and is arranged in a substantially annular shape outside the suction port 5 . Adsorption device 1 .

The weight member 6 has a plurality of weights 6a adsorption device for article 10 taken out according to claim 1, characterized in that it is disposed substantially concentrically outside the suction port 5 with a predetermined gap 1

The weight member 6, the adsorption apparatus 1 of the article 10 taken out of claim 1, wherein the plurality of weights 6a is characterized in that it is disposed in a scattered state on the outside of the suction port 5.

The suction device (1) for taking out an article (10) according to claim 1, wherein the sheet-like member (4) is provided with a vent hole (12) for ventilating the air in the internal space (8).