JP3883886B2 - Article gripping device in rotary type article processing apparatus - Google Patents

Article gripping device in rotary type article processing apparatus Download PDF

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JP3883886B2
JP3883886B2 JP2002057647A JP2002057647A JP3883886B2 JP 3883886 B2 JP3883886 B2 JP 3883886B2 JP 2002057647 A JP2002057647 A JP 2002057647A JP 2002057647 A JP2002057647 A JP 2002057647A JP 3883886 B2 JP3883886 B2 JP 3883886B2
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article
bottle container
rotary table
pressing member
urging
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JP2003260683A (en
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英明 村岡
秀夫 土屋
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靜甲株式会社
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Description

【0001】
【発明の属する技術分野】
本発明は、前工程から搬送される物品をロータリー式物品処理装置の回転テーブル上に載せて搬送する際に回転テーブル上の物品を把持するロータリー式物品処理装置における物品把持装置に関する。
【0002】
【従来の技術】
一般に、ペットボトルなどの容器や、キャップなどの各種の物品を搬送する搬送ライン内に介設される物品処理装置として、物品の受部が周方向に沿って複数並設された物品受け用の回転テーブルを備えたロータリー式の物品処理装置が広く使用されている。このロータリー式の物品処理装置には前工程から搬送される物品を回転テーブルの物品受部に繰入れる繰入部と、物品に必要な処理を施す物品処理部と、処理済みの物品を回転テーブルから後工程に操出す操出部とが回転テーブルの周囲に順次配設され、回転テーブルの回転にともない物品処理部に搬送される物品の処理を連続的に行うようになっている。
【0003】
また、この種のロータリー式の物品処理装置の一例として、例えばボトル容器内に混入している異物等を検査する検査装置がある。この検査装置には鏡面状の反射部材によって形成された台部(容器受部)が周方向に沿って複数並設された容器受け用の回転テーブルが設けられている。
【0004】
さらに、前工程から搬送されるボトル容器を回転テーブルの台部に繰入れる繰入部と、ボトル容器の底面に向かって検査光を照射し、ボトル容器の内部を検査するボトル容器検査部と、検査済みのボトル容器を回転テーブルから後工程に操出す操出部とが回転テーブルの周囲に順次配設されている。また、ボトル容器検査部には台部の上からボトル容器の底面に向かって検査光を照射する検査光照射部と、この検査光照射部の近傍位置に配置され、ボトル容器内に混入した異物等を検査する検査用のカメラとが設けられている。
【0005】
そして、回転テーブルの回転にともない容器検査部にボトル容器が搬送された時点で順次、ボトル容器の検査が連続的に行われるようになっている。このボトル容器の検査時には、容器検査部では検査光照射部から出射された照明光が反射性の台部から反射されてボトル容器内に照射される。このとき同時に検査用のカメラが駆動され、ボトル容器内に混入した異物等の検査を連続的に行うようになっている。
【0006】
【発明が解決しようとする課題】
ところで、ボトル容器内に混入した異物等を高精度に検査する為にはボトル容器の底面全体を回転テーブルの台部に密着させる必要がある。しかしながら、一般にボトル容器の成形精度は比較的悪く、図6(A)に示すようにほとんどのボトル容器aは自立させた状態でそのボトル容器aの中心線O1の方向が鉛直方向(回転テーブルの台部の平面bと直交する方向)PLに対して大きく傾いているのが現状である。このようにボトル容器aが自立したままの状態でボトル容器aの検査をする事が好ましい方法であるが、ボトル容器aの検査を高速で行うようにすると遠心力によりボトル容器aが回転テーブルの台部から飛び出してしまう問題がある。
【0007】
そこで、回転テーブルの台部上のボトル容器の胴部を把持するボトル把持装置を設け、ボトル容器の胴部を把持して容器を固定することが従来から行われている。この従来から行われている通常のボトル把持方法では、図6(B)に示すようにボトル容器aを両側から挟持する状態で把持するボトルグリッパーcや、図示しないインナー・アウターガイド等を使用するようになっている。そして、図6(A)に示すように自立状態においてボトル容器aの中心線O1の方向が鉛直方向(回転テーブルの台部の平面bと直交する方向)PLに対して傾いている場合にはボトルグリッパーcでボトル容器aを把持することにより、ボトル容器aの中心線O1の方向を鉛直方向(回転テーブルの台部の平面bと直交する方向)PLに向ける効果は有る。
【0008】
しかしながら、回転テーブルの台部上のボトル容器aをボトルグリッパーcで把持させてボトル容器aの中心線O1の方向を鉛直方向PLに向けた場合には、図6(B)に示すようにボトル容器aの底面a1の一部が斜めに浮いてしまい、テーブルの台部の平面bから離れてしまうことになる。そのため、この場合にはボトル容器aの底面a1をテーブルの台部の平面bに密着させた正しい姿勢で保持することができないので、ボトル容器a内に混入した異物等を高精度に検査することができず、正確な検査が行なえない問題がある。
【0009】
本発明は上記事情に着目してなされたもので、その目的は、ロータリー式物品処理装置で遠心力により物品が回転テーブルの物品受部から飛び出してしまうことを確実に防止することができ、把持されている物品を正しい姿勢で確実に保持することができるロータリー式物品処理装置における物品把持装置を提供することにある。
【0010】
【課題を解決するための手段】
請求項1の発明は、物品の受部が周方向に沿って複数並設された物品受け用の回転テーブルを備え、前工程から搬送される物品を前記回転テーブルの物品受部に繰入れる繰入部と、前記物品に必要な処理を施す物品処理部と、処理済みの前記物品を前記回転テーブルから後工程に操出す操出部とが前記回転テーブルの周囲に順次配設され、前記回転テーブルの回転にともない前記物品処理部に搬送される前記物品の処理を連続的に行うロータリー式物品処理装置における物品把持装置において、前記回転テーブル上の前記物品を上から下に押し付けて前記物品の底面を前記回転テーブルに押し付けた状態で密着させる底面密着手段を設け、前記底面密着手段は、前記物品を上から下に押し付ける板状の押し付け部材と、この押し付け部材を上下方向に移動可能に支持する支持機構と、この支持機構に装着され、前記押し付け部材を前記物品を上から下に押し付ける方向に付勢する付勢手段と、少なくとも前記物品の受け渡し位置で前記押し付け部材を前記付勢手段の付勢力に抗して前記物品から引き離す方向に移動させる引き離し手段とを具備し、前記押し付け部材の支持機構は、前記押し付け部材に上端部が固定された移動軸と、下端部が前記回転テーブルに固定され、前記移動軸を上下方向に移動自在に支持する支持部材と、前記移動軸に装着されたベース部材と、このベース部材に取付けられ、前記支持部材に対する前記移動軸の軸回り方向の回転を規制する回転規制部材と、前記ベース部材に略水平方向の回転軸を中心に回転自在に取付けられたローラとを有し、前記引き離し手段は、前記回転テーブルの回転方向に沿って前記物品の受け渡し位置における前記操出部と前記繰入部との間の前記物品の非搬送区間と対応する略円弧形状に形成され、前記ローラの移動軌道上に配置された板状のカムと、前記回転テーブルの回転方向に沿って前記繰入部と前記操出部との間の前記物品の搬送軌道上では前記押し付け部材を前記物品に押し付ける押し付け位置で保持し、少なくとも前記物品の受け渡し位置で前記ローラが前記カムに乗り上げることで、前記押し付け部材を前記付勢手段の付勢力に抗して前記物品から引き離す方向に移動させるカム機構とを具備することを特徴とするロータリー式物品処理装置における物品把持装置である。
【0011】
そして、本請求項1の発明では、前工程から搬送され、繰入部から回転テーブルの物品受部に繰入れた物品を底面密着手段によって上から下に押し付けて物品の底面を回転テーブルに押し付けて密着させた状態で把持させる。このとき、支持機構によって板状の押し付け部材を上下方向に移動可能に支持させ、この支持機構に装着された付勢手段によって押し付け部材を物品を上から下に押し付ける方向に付勢するとともに、少なくとも物品の受け渡し位置で引き離し手段によって押し付け部材を付勢手段の付勢力に抗して物品から引き離す方向に移動させる。さらに、回転テーブルの回転方向に沿って繰入部と操出部との間の物品の搬送軌道上では支持機構に装着された付勢手段の付勢力によって押し付け部材を付勢して押し付け部材を物品に押し付ける押し付け位置で保持し、回転テーブルの回転方向に沿って物品の受け渡し位置における操出部と繰入部との間の物品の非搬送区間でローラがカム機構のカムに乗り上げることで、押し付け部材を付勢手段の付勢力に抗して物品から引き離す方向に移動させるようにしたものである。
【0016】
【発明の実施の形態】
以下、本発明の第1の実施の形態を図1乃至図5を参照して説明する。図1は図2に示すようにボトル容器(物品)1内に混入した異物等の検査を連続的に行う本実施の形態のロータリー式物品処理装置であるボトル容器検査装置2全体の概略構成を示すものである。
【0017】
図1中で、3はボトル容器検査装置2にボトル容器1を供給するボトル容器供給用の搬送ライン、4はボトル容器検査装置2内で検査された検査済のボトル容器1を繰り出す繰り出し用の搬送ラインである。ここで、ボトル容器供給用の搬送ライン3にはボトル容器1の搬送路を形成するガイド部材3aと、このガイド部材3aに沿ってボトル容器1をボトル容器検査装置2側に圧送するスクリュー3bとが設けられている。そして、スクリュー3bの溝とガイド部材3aとの間の空間にボトル容器1がセットされ、スクリュー3bの回転にともないボトル容器1がボトル容器検査装置2側に順次、供給されるようになっている。
【0018】
さらに、繰り出し用の搬送ライン4にも同様にボトル容器1の搬送路を形成するガイド部材4aと、このガイド部材4aに沿ってボトル容器1を後工程に操出すスクリュー4bとが設けられている。そして、スクリュー4bの回転にともないボトル容器1を後工程に順次、操出すようになっている。
【0019】
また、ボトル容器検査装置2の内部には、ボトル容器1内に混入した異物等を高精度に検査する検査部(物品処理部)5と、容器供給用の搬送ライン3から供給されるボトル容器1を検査部5に繰り入れる繰り入れ用のスターホイール(繰入部)6と、検査部5から繰り出される検査済のボトル容器1を繰り出し用の搬送ライン4に繰り出す繰り出し用のスターホイール(操出部)7とが設けられている。
【0020】
また、ボトル容器1の検査部5には回転テーブル8が設けられている。この回転テーブル8の外周部にはボトル容器1の受部である台部9が周方向に沿って複数並設されている。ここで、回転テーブル8のテーブル本体8aには図2に示すように各台部9と対応する部位に台部装着用凹部8bが形成されている。そして、各台部装着用凹部8bに台部9がそれぞれ挿入された状態で固定されている。なお、台部9は光を反射可能な鏡面状の材料で形成されていればよく、鏡以外の反射性材料、例えばメッキを施したプラスチック材料などでもよい。
【0021】
また、図3に示すようにこの回転テーブル8の軸心部には回転軸10が配設されている。そして、回転テーブル8はこの回転軸10を中心に回転駆動されるようになっている。
【0022】
さらに、ボトル容器1の検査部5には回転テーブル8上方にボトル容器1の内面を撮影する2つのボトル容器撮影部11a,11bが設けられている。各ボトル容器撮影部11a,11bは回転テーブル8の回転時における繰り入れ用のスターホイール6と、繰り出し用のスターホイール7との間のボトル容器1の移動軌道内に配置されている。
【0023】
また、各ボトル容器撮影部11a,11bにはカメラ12と、このカメラ12による撮影用の照明光を照射するリングライト13とが設けられている。ここで、カメラ12は図2に示すように回転テーブル8の台部9の上面に離間対向配置される位置に固定されている。
【0024】
さらに、本実施の形態のボトル容器検査装置2には回転テーブル8の台部9上のボトル容器1を上から下に押し付けてボトル容器1の底面1aを回転テーブル8の台部9に押し付けた状態で密着させる底面密着機構(底面密着手段)14が設けられている。この底面密着機構14にはボトル容器1を上から下に押し付ける板状の押し付け部材15と、この押し付け部材15を上下方向に移動可能に支持する支持機構16と、この支持機構16に装着され、ボトル容器1を上から下に押し付ける方向に押し付け部材15を付勢するコイルばね(付勢手段)17と、少なくともボトル容器1の受け渡し位置で押し付け部材15をコイルばね17の付勢力に抗してボトル容器1から引き離す方向に移動させる引き離し機構(引き離し手段)18とが設けられている。
【0025】
さらに、押し付け部材15の支持機構16には、下端部が回転テーブル8に固定された筒状の支持部材19と、この支持部材19の筒内に上下方向に移動自在に挿入された移動軸20とが設けられている。そして、支持部材19によって移動軸20が上下方向に移動自在に支持されている。この移動軸20の上端部はベース部材24を介して押し付け部材15に固定されている。
【0026】
また、支持部材19の筒内には下部側にコイルばね17の収容空間21が形成されている。このコイルばね17はこのばね収容空間21内の上端部と、移動軸20の下端部のばね受け部22との間に架設されている。そして、このばね収容空間21内のコイルばね17によってボトル容器1を上から下に押し付ける方向に押し付け部材15が付勢されている。さらに、支持部材19の周壁部には上端部側に上下方向に向けてガイド溝23が延設されている。
【0027】
また、移動軸20の上端部と押し付け部材15との固定部にはベース部材24が装着されている。このベース部材24の一端部には下向きに屈曲された屈曲部24aが形成されている。この屈曲部24aの下端部には支持部材19に対する移動軸20の軸回り方向の回転を規制するカムフォロア(回転規制部材)25が取付けられている。このカムフォロア25は支持部材19のガイド溝23に沿って上下方向に移動自在に支持されている。さらに、ベース部材24の他端部にはローラ26が略水平方向の回転軸27を中心に回転自在に取付けられている。
【0028】
また、引き離し機構18には回転テーブル8の回転時におけるローラ26の移動軌道上に配置された板状のカム28を備えたカム機構29が設けられている。このカム28は図1に示すように回転テーブル8の回転方向に沿って略円弧形状に形成されている。さらに、このカム28は回転テーブル8の回転方向に沿ってボトル容器1の受け渡し位置における繰り出し用のスターホイール7と繰り入れ用のスターホイール6との間のボトル容器1の非搬送区間と対応する位置に配置されている。
【0029】
そして、回転テーブル8の回転時には繰り入れ用のスターホイール6と繰り出し用のスターホイール7との間のボトル容器1の搬送軌道上では底面密着機構14のローラ26がカム28と接触していない状態で保持される。この状態ではコイルばね17の付勢力によって押し付け部材15をボトル容器1に押し付ける押し付け位置で保持するようになっている。さらに、ボトル容器1の受け渡し位置で図2に示すようにローラ26がカム28に乗り上げることで、押し付け部材15をコイルばね17の付勢力に抗してボトル容器1から引き離す方向(図2中で上方向)に移動させるようになっている。したがって、繰り入れ用のスターホイール6と繰り出し用のスターホイール7との間のボトル容器1の搬送軌道上では押し付け部材15によってボトル容器1が下向きに押し付けけられた状態で保持されるので、ボトル容器1は押し付け部材15と回転テーブル8の台部9との間で把持された状態で保持されるようになっている。
【0030】
また、本実施の形態のボトル容器検査装置2にはカム28を上下方向に移動することでボトル容器1の非搬送区間における押し付け部材15の高さ位置を調整する高さ調整装置30が設けられている。ここで、ボトル容器検査装置2には図3に示すように水平方向に延設された支持フレーム31が設けられている。この支持フレーム31にはカム支持用の左右一対のステー32が上向きに立設されている。
【0031】
さらに、図5に示すように両ステー32の上端部間にはチャンネル部材33が架設されている。このチャンネル部材33には上下方向に伸縮動作可能な左右一対の伸縮アーム34a,34bが設けられている。各伸縮アーム34a,34bの下端部には水平方向に延設されたカム支持部材35の基端部が固定されている。このカム支持部材35の先端部にはカム28が固定されている。
【0032】
また、一方の伸縮アーム34aの上端部には回転操作ハンドル36が連結されている。そして、この回転操作ハンドル36の回転操作にともない左右一対の伸縮アーム34a,34bが同時に上下方向に伸縮動作し、カム28の高さ位置を調整するようになっている。なお、左右一対の伸縮アーム34a,34bにはロック機構37が取付けられている。そして、このロック機構37のロック解除時には左右一対の伸縮アーム34a,34bが上下方向に伸縮動作可能な状態で保持され、カム28の高さ位置の調整後はこのロック機構37によって伸縮アーム34a,34bが伸縮動作不能な状態にロックされるようになっている。
【0033】
次に、上記構成の作用について説明する。本実施の形態のボトル容器検査装置2の使用時にはボトル容器供給用の搬送ライン3からボトル容器1がボトル容器検査装置2側に順次、供給される。さらに、ここで供給されるボトル容器1は繰り入れ用のスターホイール6を経て検査部5に供給される。
【0034】
また、検査部5に供給されるボトル容器1は回転テーブル8の台部9側に移載される。このとき、ボトル容器1が台部9側に移載された時点で、底面密着機構14の押し付け部材15が下向きに移動され、この押し付け部材15によってボトル容器1が下向きに押し付けけられる。これにより、ボトル容器1は押し付け部材15と回転テーブル8の台部9との間で把持された状態で保持される。
【0035】
続いて、この回転テーブル8の回転によってボトル容器1がボトル容器撮影部11a,11bの位置に移動すると、各ボトル容器撮影部11a,11bのカメラ12によってボトル容器1の内面が撮影され、ボトル容器1内に混入した異物等の検査が連続的に行なわれる。このとき、台部9上のボトル容器1は押し付け部材15によって上から下に押し付けられ、押し付け部材15と回転テーブル8の台部9との間で把持された状態で保持されている。そのため、ボトル容器1の底面1aを回転テーブル8の台部9に押し付けて密着させた状態で把持させることができるので、ボトル容器1内に混入した異物等を高精度に検査することができ、正確な検査を行なうことができる。
【0036】
さらに、検査済みのボトル容器1は繰り出し用のスターホイール7を経て順次、繰り出し用の搬送ライン4に繰り出される。このとき、ボトル容器1がスターホイール7に移載されるボトル容器1の受け渡し位置の直前で、図2に示すようにローラ26がカム28に乗り上げる。これにより、押し付け部材15がコイルばね17の付勢力に抗してボトル容器1から引き離す方向(図2中で上方向)に移動される。そのため、ボトル容器1の拘束が解除されるので、ボトル容器1を円滑にスターホイール7に移載させることができる。
【0037】
そこで、上記構成のものにあっては次の効果を奏する。すなわち、本実施の形態のボトル容器検査装置2では回転テーブル8の台部9上のボトル容器1を上から下に押し付けてボトル容器1の底面1aを回転テーブル8の台部9に押し付けた状態で密着させる底面密着機構14を設けている。そして、ボトル容器1が台部9側に移載された時点で、底面密着機構14の押し付け部材15を下向きに移動させ、この押し付け部材15によってボトル容器1を下向きに押し付けることにより、ボトル容器1を押し付け部材15と回転テーブル8の台部9との間で把持された状態で保持させることができる。そのため、ボトル容器検査装置2の駆動時に回転テーブル8の回転によって遠心力によりボトル容器1が回転テーブル8の台部9から飛び出してしまうことを確実に防止することができ、把持されているボトル容器1を正しい姿勢で確実に保持することができる。その結果、ボトル容器1が自立した状態(ボトル容器1の底面1aを回転テーブル8の台部9に密着させた状態)で搬送させることができる。
【0038】
また、押し付け部材15によって上方からボトル容器1に力を加えるためにボトル容器1の底面1aに多少の凸凹が形成されている場合であっても上方からの押圧力で強制的にボトル容器1の底面1aを回転テーブル8の台部9に密着させる事ができる。
【0039】
さらに、本実施の形態のボトル容器検査装置2ではカム28を上下方向に移動することでボトル容器1の非搬送区間における押し付け部材15の高さ位置を調整する高さ調整装置30を設けている。そのため、ボトル容器検査装置2での検査対象となるボトル容器1の高さが変化した場合にはボトル容器1の非搬送区間における押し付け部材15の高さ位置を上下方向に調整する事により兼用が可能となる。その結果、ボトル形状の違いによる型替え部品が不要となるので、コストを低減すると同時に、交換部品の保管スペースも不要となり、新しい製品に対しても新たに交換部品を製作しなくとも対応できる効果がある。
【0040】
さらに、本発明は上記実施の形態に限定されるものではなく、本発明の要旨を逸脱しない範囲で種々変形実施できることは勿論である。
【0041】
【発明の効果】
請求項1の発明によれば、ロータリー式物品処理装置で遠心力により物品が回転テーブルの物品受部から飛び出してしまうことを確実に防止することができ、把持されている物品を正しい姿勢で確実に保持することができる。
【図面の簡単な説明】
【図1】 本発明の第1の実施の形態のボトル容器検査装置を示す全体の概略構成図。
【図2】 第1の実施の形態のボトル容器検査装置における物品把持装置の要部構成を示す縦断面図。
【図3】 第1の実施の形態のボトル容器検査装置全体の側面図。
【図4】 第1の実施の形態のボトル容器検査装置の要部構成を示す縦断面図。
【図5】 第1の実施の形態のボトル容器検査装置におけるカム機構の位置調整機構を示す縦断面図。
【図6】 従来例を示すもので、(A)はボトル容器検査装置における自立させた状態のボトル容器の中心線の方向が鉛直方向に対して傾いている状態を示すボトル容器の側面図、(B)はボトル容器をボトルグリッパーで胴部を挟持する状態で把持させた状態を示すボトル容器の側面図。
【符号の説明】
1 ボトル容器(物品)
1a 底面
5 検査部(物品処理部)
6 繰り入れ用のスターホイール(繰入部)
7 繰り出し用のスターホイール(操出部)
8 回転テーブル
9 台部(物品受部)
11a,11b ボトル容器撮影部
14 底面密着機構(底面密着手段)
15 押し付け部材
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an article gripping device in a rotary type article processing apparatus that holds an article on a rotary table when the article conveyed from the previous process is carried on the rotary table of the rotary type article processing apparatus.
[0002]
[Prior art]
In general, as an article processing apparatus interposed in a conveyance line for conveying various articles such as containers such as PET bottles and caps, an article receiving apparatus in which a plurality of article receiving units are arranged in parallel in the circumferential direction. A rotary type article processing apparatus having a rotary table is widely used. This rotary type article processing apparatus includes a feeding section for feeding an article conveyed from a previous process to an article receiving section of a rotary table, an article processing section for performing necessary processing on the article, and a processed article from the rotary table. An operation portion that is operated in a subsequent process is sequentially disposed around the rotary table, and the article conveyed to the article processing unit is continuously processed as the rotary table rotates.
[0003]
Further, as an example of this type of rotary type article processing apparatus, there is an inspection apparatus for inspecting foreign matters or the like mixed in a bottle container, for example. This inspection apparatus is provided with a rotating table for receiving a container in which a plurality of base parts (container receiving parts) formed by mirror-like reflecting members are arranged in the circumferential direction.
[0004]
Furthermore, a feeding part for feeding the bottle container transported from the previous process to the base part of the rotary table, a bottle container inspection part for inspecting the inside of the bottle container by irradiating inspection light toward the bottom surface of the bottle container, and inspection An operation unit for operating the used bottle container from the rotary table to a subsequent process is sequentially arranged around the rotary table. In addition, the bottle container inspection unit is arranged in the vicinity of the inspection light irradiation unit that irradiates the inspection light from above the base part toward the bottom surface of the bottle container, and the foreign matter mixed in the bottle container. And an inspection camera for inspecting and the like.
[0005]
And when a bottle container is conveyed to the container test | inspection part with rotation of a turntable, the test | inspection of a bottle container is performed sequentially sequentially. When inspecting the bottle container, the container inspection unit reflects the illumination light emitted from the inspection light irradiation unit from the reflective base and irradiates the bottle container. At the same time, the inspection camera is driven to continuously inspect foreign matters mixed in the bottle container.
[0006]
[Problems to be solved by the invention]
By the way, in order to inspect the foreign matter and the like mixed in the bottle container with high accuracy, it is necessary to bring the entire bottom surface of the bottle container into close contact with the base portion of the rotary table. However, in general, the accuracy of forming the bottle container is relatively poor, and as shown in FIG. 6A, most bottle containers a are self-standing and the direction of the center line O1 of the bottle container a is the vertical direction (of the rotary table). The current situation is that it is greatly inclined with respect to PL (in the direction orthogonal to the plane b of the base). In this way, it is preferable to inspect the bottle container a while the bottle container a is self-supporting. However, when the bottle container a is inspected at a high speed, the bottle container a is removed from the rotary table by centrifugal force. There is a problem of jumping out of the base.
[0007]
Therefore, it has been conventionally performed to provide a bottle gripping device for gripping the body of the bottle container on the base of the rotary table, and to fix the container by gripping the body of the bottle container. In this conventional bottle gripping method, a bottle gripper c that grips the bottle container a from both sides as shown in FIG. 6B, an inner / outer guide (not shown), and the like are used. It is like that. 6A, when the direction of the center line O1 of the bottle container a is tilted with respect to the vertical direction PL (direction orthogonal to the plane b of the base portion of the turntable) in the self-standing state. By gripping the bottle container a with the bottle gripper c, there is an effect of directing the direction of the center line O1 of the bottle container a in the vertical direction (direction orthogonal to the plane b of the base portion of the rotary table) PL.
[0008]
However, when the bottle container a on the base portion of the rotary table is gripped by the bottle gripper c and the direction of the center line O1 of the bottle container a is directed to the vertical direction PL, the bottle as shown in FIG. A part of the bottom surface a1 of the container a floats obliquely and leaves the plane b of the table base. Therefore, in this case, since the bottom surface a1 of the bottle container a cannot be held in a correct posture in close contact with the flat surface b of the table base, it is possible to inspect the foreign matter mixed in the bottle container a with high accuracy. There is a problem that it is not possible to perform an accurate inspection.
[0009]
The present invention has been made paying attention to the above circumstances, and its purpose is to reliably prevent the article from jumping out of the article receiving portion of the rotary table by the centrifugal force in the rotary type article processing apparatus. It is an object of the present invention to provide an article gripping device in a rotary type article processing apparatus that can reliably hold an article in a correct posture.
[0010]
[Means for Solving the Problems]
The invention of claim 1 is provided with a rotating table for receiving an article in which a plurality of receiving parts for the article are arranged side by side in the circumferential direction, and the article conveyed from the previous step is fed into the receiving part of the rotating table. An input section, an article processing section that performs a necessary process on the article, and an operation section that drives the processed article from the rotary table to a subsequent process are sequentially disposed around the rotary table, and the rotary table. In the article gripping apparatus in the rotary type article processing apparatus that continuously processes the article conveyed to the article processing unit as the article rotates, the article on the rotary table is pressed from top to bottom and the bottom surface of the article the bottom contact means for adhering in a state of pressing the rotating table is provided, the bottom contact means includes upper and plate-shaped pressing member for pressing down from above the article, the pressing member A support mechanism for supporting movement in a direction, biasing means mounted on the support mechanism and biasing the pressing member in a direction of pressing the article downward from above, and the pressing member at least at a delivery position of the article Separating means for moving in a direction away from the article against the urging force of the urging means, and the support mechanism of the pressing member includes a moving shaft having an upper end fixed to the pressing member, and a lower end. A support member fixed to the rotary table and supporting the moving shaft so as to be movable in the vertical direction; a base member mounted on the moving shaft; and the moving shaft attached to the base member, the moving shaft relative to the supporting member A rotation restricting member for restricting the rotation of the shaft around the axis, and a roller attached to the base member so as to be rotatable about a rotation axis in a substantially horizontal direction. And a means that is formed in a substantially arc shape corresponding to a non-conveying section of the article between the feeding portion and the feeding portion at the delivery position of the article along the rotation direction of the rotary table, A plate-shaped cam disposed on the moving track and a pressing member that presses the pressing member against the product on the transporting track of the product between the feeding unit and the feeding unit along the rotation direction of the rotary table. And a cam mechanism that moves the pressing member in a direction away from the article against the urging force of the urging means when the roller runs on the cam at least at the delivery position of the article. An article gripping device in a rotary type article processing apparatus.
[0011]
According to the first aspect of the present invention, the article conveyed from the previous step and fed from the feeding section to the article receiving section of the rotary table is pressed from the top to the bottom by the bottom surface contact means, and the bottom surface of the article is pressed against the rotary table and closely adhered. Grip in the touched state . At this time, the plate-like pressing member is supported by the support mechanism so as to be movable in the vertical direction, and the pressing member is urged in a direction of pressing the article downward from above by the urging means attached to the support mechanism, and at least At the delivery position of the article, the pressing member is moved by the separating means in a direction to be separated from the article against the urging force of the urging means. Further, the pressing member is urged by the urging force of the urging means attached to the support mechanism on the article conveyance path between the feeding section and the feeding section along the rotation direction of the rotary table, thereby pressing the pressing member to the article. The pressing member is held by the pressing position that presses against the cam, and the roller rides on the cam of the cam mechanism in the non-conveying section of the article between the feeding section and the feeding section at the article delivery position along the rotation direction of the rotary table. Is moved in a direction away from the article against the biasing force of the biasing means .
[0016]
DETAILED DESCRIPTION OF THE INVENTION
A first embodiment of the present invention will be described below with reference to FIGS. FIG. 1 shows a schematic configuration of the entire bottle container inspection apparatus 2 which is a rotary type article processing apparatus according to the present embodiment for continuously inspecting foreign matters mixed in a bottle container (article) 1 as shown in FIG. It is shown.
[0017]
In FIG. 1, reference numeral 3 denotes a bottle container supply conveyance line for supplying the bottle container 1 to the bottle container inspection apparatus 2, and 4 denotes a supply line for feeding out the inspected bottle container 1 inspected in the bottle container inspection apparatus 2. It is a transport line. Here, a guide member 3a that forms a transport path for the bottle container 1 in the transport line 3 for supplying the bottle container, and a screw 3b that pumps the bottle container 1 to the bottle container inspection device 2 side along the guide member 3a, Is provided. And the bottle container 1 is set in the space between the groove | channel of the screw 3b and the guide member 3a, and the bottle container 1 is sequentially supplied to the bottle container test | inspection apparatus 2 side with rotation of the screw 3b. .
[0018]
Further, a guide member 4a that similarly forms a transport path for the bottle container 1 and a screw 4b that drives the bottle container 1 to a subsequent process along the guide member 4a are provided in the transport line 4 for feeding. . And the bottle container 1 is sequentially operated to a post process with rotation of the screw 4b.
[0019]
Further, inside the bottle container inspection device 2, an inspection unit (article processing unit) 5 that inspects foreign matter or the like mixed in the bottle container 1 with high accuracy, and a bottle container supplied from a container supply conveyance line 3 A feeding star wheel (feeding unit) 6 for feeding 1 into the inspection unit 5 and a feeding star wheel (operating unit) for feeding the inspected bottle container 1 fed from the testing unit 5 to the feeding line 4 7 is provided.
[0020]
A rotating table 8 is provided in the inspection unit 5 of the bottle container 1. A plurality of base portions 9 which are receiving portions of the bottle container 1 are arranged in parallel along the circumferential direction on the outer peripheral portion of the turntable 8. Here, as shown in FIG. 2, the table main body 8a of the rotary table 8 is formed with base mounting recesses 8b at portions corresponding to the bases 9. And the base part 9 is being fixed in the state inserted in each base part mounting recessed part 8b, respectively. In addition, the base part 9 should just be formed with the mirror surface material which can reflect light, and reflective materials other than a mirror, for example, the plastic material which plated, etc. may be sufficient as it.
[0021]
Further, as shown in FIG. 3, a rotary shaft 10 is disposed at the axial center of the rotary table 8. The rotary table 8 is driven to rotate about the rotary shaft 10.
[0022]
Further, the inspection unit 5 of the bottle container 1 is provided with two bottle container imaging units 11 a and 11 b for imaging the inner surface of the bottle container 1 above the rotary table 8. Each bottle container photographing unit 11 a, 11 b is arranged in the movement trajectory of the bottle container 1 between the feeding star wheel 6 and the feeding star wheel 7 when the turntable 8 rotates.
[0023]
Each bottle container photographing unit 11a, 11b is provided with a camera 12 and a ring light 13 for irradiating illumination light for photographing by the camera 12. Here, as shown in FIG. 2, the camera 12 is fixed to a position where the camera 12 is spaced from and opposed to the upper surface of the base portion 9 of the turntable 8.
[0024]
Furthermore, in the bottle container inspection device 2 of the present embodiment, the bottle container 1 on the base portion 9 of the turntable 8 is pressed from the top to the bottom, and the bottom surface 1a of the bottle container 1 is pressed against the stand portion 9 of the turntable 8. A bottom contact mechanism (bottom contact means) 14 is provided for close contact in the state. A plate-like pressing member 15 that presses the bottle container 1 downward from above, a support mechanism 16 that supports the pressing member 15 so as to be movable in the vertical direction, and a support mechanism 16 are attached to the bottom surface contact mechanism 14. A coil spring (biasing means) 17 that biases the pressing member 15 in a direction in which the bottle container 1 is pressed down from above, and the pressing member 15 against the biasing force of the coil spring 17 at least at the delivery position of the bottle container 1. A separating mechanism (separating means) 18 for moving in the direction of separating from the bottle container 1 is provided.
[0025]
Further, the support mechanism 16 of the pressing member 15 has a cylindrical support member 19 whose lower end is fixed to the rotary table 8, and a moving shaft 20 that is movably inserted in the cylinder of the support member 19 in the vertical direction. And are provided. The moving shaft 20 is supported by the support member 19 so as to be movable in the vertical direction. The upper end portion of the moving shaft 20 is fixed to the pressing member 15 via the base member 24.
[0026]
In addition, a housing space 21 for the coil spring 17 is formed in the cylinder of the support member 19 on the lower side. The coil spring 17 is installed between the upper end portion in the spring accommodating space 21 and the spring receiving portion 22 at the lower end portion of the moving shaft 20. And the pressing member 15 is urged | biased by the direction which presses the bottle container 1 downward from the coil spring 17 in this spring accommodation space 21. FIG. Further, a guide groove 23 is provided on the peripheral wall portion of the support member 19 so as to extend in the vertical direction on the upper end side.
[0027]
A base member 24 is attached to a fixed portion between the upper end portion of the moving shaft 20 and the pressing member 15. A bent portion 24 a bent downward is formed at one end portion of the base member 24. A cam follower (rotation restricting member) 25 that restricts the rotation of the moving shaft 20 relative to the support member 19 in the direction around the axis is attached to the lower end of the bent portion 24a. The cam follower 25 is supported so as to be movable in the vertical direction along the guide groove 23 of the support member 19. Further, a roller 26 is attached to the other end of the base member 24 so as to be rotatable about a rotation shaft 27 in a substantially horizontal direction.
[0028]
Further, the separating mechanism 18 is provided with a cam mechanism 29 having a plate-like cam 28 disposed on the moving track of the roller 26 when the turntable 8 rotates. As shown in FIG. 1, the cam 28 is formed in a substantially arc shape along the rotation direction of the turntable 8. Further, the cam 28 corresponds to a non-conveying section of the bottle container 1 between the feeding star wheel 7 and the feeding star wheel 6 at the delivery position of the bottle container 1 along the rotation direction of the turntable 8. Are arranged.
[0029]
When the rotary table 8 is rotated, the roller 26 of the bottom surface close-contact mechanism 14 is not in contact with the cam 28 on the transport path of the bottle container 1 between the feeding star wheel 6 and the feeding star wheel 7. Retained. In this state, the pressing member 15 is held at the pressing position where the pressing member 15 is pressed against the bottle container 1 by the biasing force of the coil spring 17. Further, when the roller 26 rides on the cam 28 as shown in FIG. 2 at the delivery position of the bottle container 1, the pressing member 15 is pulled away from the bottle container 1 against the urging force of the coil spring 17 (in FIG. 2). It is designed to move in the upward direction. Accordingly, since the bottle container 1 is held in a state of being pressed downward by the pressing member 15 on the transport path of the bottle container 1 between the feeding star wheel 6 and the feeding star wheel 7, the bottle container 1 is held while being held between the pressing member 15 and the base portion 9 of the rotary table 8.
[0030]
Further, the bottle container inspection device 2 of the present embodiment is provided with a height adjusting device 30 that adjusts the height position of the pressing member 15 in the non-conveying section of the bottle container 1 by moving the cam 28 in the vertical direction. ing. Here, the bottle container inspection apparatus 2 is provided with a support frame 31 extending in the horizontal direction as shown in FIG. The support frame 31 is provided with a pair of left and right stays 32 for supporting the cam.
[0031]
Further, as shown in FIG. 5, a channel member 33 is installed between the upper ends of both stays 32. The channel member 33 is provided with a pair of left and right extendable arms 34a and 34b that can be expanded and contracted in the vertical direction. A base end portion of a cam support member 35 extending in the horizontal direction is fixed to the lower end portions of the extendable arms 34a and 34b. A cam 28 is fixed to the tip of the cam support member 35.
[0032]
A rotation operation handle 36 is connected to the upper end of one of the telescopic arms 34a. Along with the rotation operation of the rotation operation handle 36, the pair of left and right extendable arms 34a and 34b simultaneously extend in the vertical direction to adjust the height position of the cam 28. A lock mechanism 37 is attached to the pair of left and right extendable arms 34a and 34b. When the lock mechanism 37 is unlocked, the pair of left and right extendable arms 34a and 34b are held in a state in which they can be extended and contracted in the vertical direction. 34b is locked in a state where it cannot extend and contract.
[0033]
Next, the operation of the above configuration will be described. When the bottle container inspection apparatus 2 of the present embodiment is used, the bottle containers 1 are sequentially supplied from the bottle container supply conveyance line 3 to the bottle container inspection apparatus 2 side. Further, the bottle container 1 supplied here is supplied to the inspection unit 5 through a star wheel 6 for feeding.
[0034]
Further, the bottle container 1 supplied to the inspection unit 5 is transferred to the base unit 9 side of the rotary table 8. At this time, when the bottle container 1 is transferred to the base 9 side, the pressing member 15 of the bottom surface contact mechanism 14 is moved downward, and the bottle container 1 is pressed downward by the pressing member 15. Thereby, the bottle container 1 is held in a state of being gripped between the pressing member 15 and the base portion 9 of the rotary table 8.
[0035]
Subsequently, when the bottle container 1 is moved to the position of the bottle container photographing units 11a and 11b by the rotation of the turntable 8, the inner surface of the bottle container 1 is photographed by the camera 12 of each bottle container photographing unit 11a and 11b. Inspection of foreign matters mixed in 1 is continuously performed. At this time, the bottle container 1 on the pedestal 9 is pressed from above by the pressing member 15 and is held in a state of being gripped between the pressing member 15 and the pedestal 9 of the rotary table 8. Therefore, since the bottom surface 1a of the bottle container 1 can be gripped in a state of being pressed against and brought into close contact with the base portion 9 of the turntable 8, foreign matters mixed in the bottle container 1 can be inspected with high accuracy, Accurate inspection can be performed.
[0036]
Further, the inspected bottle containers 1 are sequentially fed out to the feeding line 4 through the feeding star wheel 7. At this time, immediately before the delivery position of the bottle container 1 on which the bottle container 1 is transferred to the star wheel 7, the roller 26 rides on the cam 28 as shown in FIG. As a result, the pressing member 15 is moved in a direction (upward in FIG. 2) to be separated from the bottle container 1 against the urging force of the coil spring 17. Therefore, since the restraint of the bottle container 1 is released, the bottle container 1 can be smoothly transferred to the star wheel 7.
[0037]
Therefore, the above configuration has the following effects. That is, in the bottle container inspection device 2 of the present embodiment, the bottle container 1 on the base portion 9 of the turntable 8 is pressed from the top to the bottom, and the bottom surface 1 a of the bottle container 1 is pressed against the stand portion 9 of the turntable 8. Is provided with a bottom surface contact mechanism 14 to be in close contact with. When the bottle container 1 is transferred to the base 9 side, the pressing member 15 of the bottom surface contact mechanism 14 is moved downward, and the bottle container 1 is pressed downward by the pressing member 15. Can be held while being held between the pressing member 15 and the base portion 9 of the rotary table 8. Therefore, it is possible to reliably prevent the bottle container 1 from jumping out of the base portion 9 of the rotary table 8 due to the centrifugal force due to the rotation of the rotary table 8 when the bottle container inspection device 2 is driven. 1 can be securely held in a correct posture. As a result, the bottle container 1 can be conveyed in a self-standing state (a state where the bottom surface 1a of the bottle container 1 is in close contact with the base portion 9 of the turntable 8).
[0038]
Further, even if a slight unevenness is formed on the bottom surface 1a of the bottle container 1 in order to apply a force to the bottle container 1 from above by the pressing member 15, the bottle container 1 is forcibly forced by the pressing force from above. The bottom surface 1 a can be brought into close contact with the base portion 9 of the rotary table 8.
[0039]
Further, the bottle container inspection device 2 of the present embodiment is provided with a height adjusting device 30 that adjusts the height position of the pressing member 15 in the non-conveying section of the bottle container 1 by moving the cam 28 in the vertical direction. . Therefore, when the height of the bottle container 1 to be inspected by the bottle container inspection apparatus 2 is changed, the height position of the pressing member 15 in the non-conveying section of the bottle container 1 can be adjusted in the vertical direction. It becomes possible. As a result, there is no need for remodeling parts due to the difference in the shape of the bottle, which reduces costs and eliminates the need for storage space for replacement parts, and can be used for new products without the need to make new replacement parts. There is.
[0040]
Furthermore, the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the present invention.
[0041]
【The invention's effect】
According to the present invention, it is possible to reliably prevent that the articles by centrifugal force Rotary type article processing system will jump out from the article receiving portion of the turntable, the article being gripped in the correct position It can be held securely.
[Brief description of the drawings]
FIG. 1 is an overall schematic configuration diagram showing a bottle container inspection device according to a first embodiment of the present invention.
FIG. 2 is a longitudinal sectional view showing a configuration of a main part of an article gripping device in the bottle container inspection device according to the first embodiment.
FIG. 3 is a side view of the entire bottle container inspection device according to the first embodiment.
FIG. 4 is a vertical cross-sectional view showing the main configuration of the bottle container inspection device according to the first embodiment.
FIG. 5 is a longitudinal sectional view showing a position adjusting mechanism of a cam mechanism in the bottle container inspection device according to the first embodiment.
FIG. 6 shows a conventional example, in which (A) is a side view of the bottle container showing a state in which the direction of the center line of the bottle container in a self-standing state in the bottle container inspection apparatus is inclined with respect to the vertical direction; (B) is a side view of the bottle container showing a state in which the bottle container is gripped in a state where the body part is sandwiched by the bottle gripper.
[Explanation of symbols]
1 Bottle container (article)
1a Bottom 5 Inspection section (article processing section)
6 Star wheel for feeding (feeding part)
7 Star wheel for feeding (running section)
8 Turntable 9 base (article receiving part)
11a, 11b Bottle container photographing unit 14 Bottom surface adhesion mechanism (bottom surface adhesion means)
15 Pressing member

Claims (1)

物品の受部が周方向に沿って複数並設された物品受け用の回転テーブルを備え、
前工程から搬送される物品を前記回転テーブルの物品受部に繰入れる繰入部と、前記物品に必要な処理を施す物品処理部と、処理済みの前記物品を前記回転テーブルから後工程に操出す操出部とが前記回転テーブルの周囲に順次配設され、前記回転テーブルの回転にともない前記物品処理部に搬送される前記物品の処理を連続的に行うロータリー式物品処理装置における物品把持装置において、
前記回転テーブル上の前記物品を上から下に押し付けて前記物品の底面を前記回転テーブルに押し付けた状態で密着させる底面密着手段を設け
前記底面密着手段は、前記物品を上から下に押し付ける板状の押し付け部材と、この押し付け部材を上下方向に移動可能に支持する支持機構と、この支持機構に装着され、前記押し付け部材を前記物品を上から下に押し付ける方向に付勢する付勢手段と、少なくとも前記物品の受け渡し位置で前記押し付け部材を前記付勢手段の付勢力に抗して前記物品から引き離す方向に移動させる引き離し手段とを具備し、
前記押し付け部材の支持機構は、前記押し付け部材に上端部が固定された移動軸と、下端部が前記回転テーブルに固定され、前記移動軸を上下方向に移動自在に支持する支持部材と、前記移動軸に装着されたベース部材と、このベース部材に取付けられ、前記支持部材に対する前記移動軸の軸回り方向の回転を規制する回転規制部材と、前記ベース部材に略水平方向の回転軸を中心に回転自在に取付けられたローラとを有し、
前記引き離し手段は、前記回転テーブルの回転方向に沿って前記物品の受け渡し位置における前記操出部と前記繰入部との間の前記物品の非搬送区間と対応する略円弧形状に形成され、前記ローラの移動軌道上に配置された板状のカムと、
前記回転テーブルの回転方向に沿って前記繰入部と前記操出部との間の前記物品の搬送軌道上では前記押し付け部材を前記物品に押し付ける押し付け位置で保持し、
少なくとも前記物品の受け渡し位置で前記ローラが前記カムに乗り上げることで、前記押し付け部材を前記付勢手段の付勢力に抗して前記物品から引き離す方向に移動させるカム機構とを具備することを特徴とするロータリー式物品処理装置における物品把持装置。
The article receiving portion includes a rotating table for receiving an article in which a plurality of receiving parts are arranged along the circumferential direction,
A feeding unit that feeds an article conveyed from a previous process into an article receiving unit of the rotary table, an article processing unit that performs a necessary process on the article, and a processed article that is processed from the rotary table to a subsequent process. In the article gripping apparatus in the rotary type article processing apparatus, which is sequentially disposed around the rotary table and continuously processes the article conveyed to the article processing section as the rotary table rotates. ,
A bottom contact means for pressing the article on the rotary table from above to bring it into close contact with the bottom of the article pressed against the rotary table ;
The bottom contact means includes a plate-like pressing member that presses the article from above, a support mechanism that supports the pressing member so as to be movable in the vertical direction, and is attached to the support mechanism, and the pressing member is attached to the article. Urging means for urging the urging member in a direction in which the urging member is pushed downward from above, and detaching means for moving the urging member away from the article against the urging force of the urging means at least at the delivery position of the article Equipped,
The pressing member supporting mechanism includes a moving shaft having an upper end fixed to the pressing member, a supporting member having a lower end fixed to the rotary table and supporting the moving shaft so as to be movable in the vertical direction, and the movement. A base member mounted on the shaft, a rotation restricting member attached to the base member and restricting rotation of the moving shaft with respect to the support member in a direction around the axis, and a rotation axis in a substantially horizontal direction around the base member. A roller mounted rotatably,
The pulling means is formed in a substantially arc shape corresponding to a non-conveying section of the article between the feeding section and the feeding section at a delivery position of the article along the rotation direction of the rotary table, and the roller A plate-like cam arranged on the moving trajectory of
Hold the pressing member at a pressing position for pressing the pressing member on the article on the conveyance path of the article between the feeding section and the feeding section along the rotation direction of the rotary table,
And a cam mechanism that moves the pressing member in a direction away from the article against the urging force of the urging means when the roller rides on the cam at least at the delivery position of the article. Article gripping device in rotary type article processing apparatus.
JP2002057647A 2002-03-04 2002-03-04 Article gripping device in rotary type article processing apparatus Expired - Fee Related JP3883886B2 (en)

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CN112974305B (en) * 2021-02-09 2022-06-10 杭州国辰机器人科技有限公司 Bottle discharging and distributing mechanism of automatic lamp inspection machine

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