JP3579327B2 - Liquid container inspection device - Google Patents

Liquid container inspection device Download PDF

Info

Publication number
JP3579327B2
JP3579327B2 JP2000202363A JP2000202363A JP3579327B2 JP 3579327 B2 JP3579327 B2 JP 3579327B2 JP 2000202363 A JP2000202363 A JP 2000202363A JP 2000202363 A JP2000202363 A JP 2000202363A JP 3579327 B2 JP3579327 B2 JP 3579327B2
Authority
JP
Japan
Prior art keywords
liquid container
container
liquid
inspection
rotary table
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP2000202363A
Other languages
Japanese (ja)
Other versions
JP2002022670A (en
Inventor
光治 濱高
英明 村岡
Original Assignee
靜甲株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 靜甲株式会社 filed Critical 靜甲株式会社
Priority to JP2000202363A priority Critical patent/JP3579327B2/en
Publication of JP2002022670A publication Critical patent/JP2002022670A/en
Application granted granted Critical
Publication of JP3579327B2 publication Critical patent/JP3579327B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Landscapes

  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
  • Specific Conveyance Elements (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は、例えばPETボトルなどの液体容器内に液体の商品を充填する高速充填ラインにおいて液体充填済みの液体容器の外観検査を行う液体容器検査装置に関する。
【0002】
【従来の技術】
一般に、例えばPETボトルなどの液体容器内に液体の商品を充填する作業を自動的に行なうオートメーションの製品製造ラインが従来から使用されている。この種の製品製造ラインでは、この製造ラインの中で液体が充填された液体充填済みの液体容器の外観検査が同時に行われている。
【0003】
また、液体充填済みの液体容器の外観検査を行う液体容器検査装置として外周部位に複数の容器受部が周方向に沿って並設された回転テーブルを備えたロータリー式の容器搬送ラインを設け、この容器搬送ラインの途中に液体容器の外観検査を行う容器検査部を配設することにより、液体容器の外観検査を高速に行うことが考えられている。ここで、回転テーブルの周囲には前工程から搬送される液体容器を回転テーブルの容器受部に繰入れる繰入部と、液体容器の外観検査を行う容器検査部と、検査済みの液体容器を回転テーブルから後工程に操出す操出部とが順次配設されている。そして、回転テーブルの回転中、前工程から搬送される液体容器が繰入部から回転テーブルの容器受部に連続的に繰入れられたのち、容器検査部では回転テーブルによって搬送される液体容器の検査が連続的に行われるとともに、検査済みの液体容器が操出部によって回転テーブルから後工程に操出されるようになっている。
【0004】
また、図4は回転テーブルaを示すものである。この回転テーブルaの軸心部には駆動モータbなどの駆動機構が配設されている。さらに、cは前工程から搬送される液体容器dを回転テーブルaの容器受部に繰入れる繰入部である。ここで、回転テーブルaの複数の容器受部は回転テーブルaの外周部位に周方向に沿って並設されているので、回転テーブルaの回転時には各容器受部に収容されている液体容器dには周方向の加速度および遠心力が作用する。そのため、各液体容器d内の液面e1は図4に示すように回転の中心側の端部に比べて回転の外側の端部が高くなる状態に傾く。なお、図4中で、点線は回転テーブルaの回転停止時の液体容器d内の液面e0である水平面を示すものである。そして、製品製造ラインにおける液体容器dの搬送速度が高速化された場合には、回転テーブルaの回転時に液体容器dに作用する周方向の加速度および遠心力が大きくなるので、水平面の液面e0に対する各液体容器d内の傾斜面の液面e1の傾斜角度αが大きくなるようになっている。
【0005】
また、図5は回転テーブルa上の各液体容器dの外観検査を行う容器検査部f1の一例を示すものである。この容器検査部f1には液体容器dの横方向から照明光を照射する光源部g1と、液体容器dに対して光源部g1と略反対位置から液体容器dの外観検査を行うカメラh1などの光学装置とが設けられている。そして、カメラh1などの光学装置によって液体容器dの液中に混入している異物の検査を行うようになっている。
【0006】
さらに、図6は図5とは異なる方式の容器検査部f2の概略構成を示すものである。この容器検査部f2には液体容器dの上方向から照明光を照射する光源部g2と、液体容器dの下方から液体容器dの外観検査を行うカメラh2などの光学装置とが設けられている。そして、カメラh2などの光学装置によって液体容器dに沈殿している異物の検査を行うようになっている。
【0007】
【発明が解決しようとする課題】
しかしながら、回転テーブルaの回転時に液体容器dに作用する周方向の加速度および遠心力が大きくなり、水平面の液面e0に対する各液体容器d内の傾斜面の液面e1の傾斜角度αが大きくなる場合には図5の容器検査部f1では各液体容器d内の傾斜面の液面e1の部分(傾斜面の液面e1における回転の中心側の端部と回転の外側の端部との間の範囲i)で光源部g1からの照明光の反射方向が変化し、液体容器d内の傾斜面の液面e1の部分の照明が不均一になるので、カメラh1などの光学装置によって液体容器dの液中に混入している異物の検査を行う際の検査精度が低くなる問題がある。
【0008】
また、図6の容器検査部f2でも同様に各液体容器d内の傾斜面の液面e1の部分で光源部g2からの照明光の反射方向が変化し、液体容器d内の傾斜面の液面e1の部分の照明が不均一になるので、カメラh2などの光学装置によって液体容器dに沈殿している異物の検査を行う際の検査精度が低くなる問題がある。
【0009】
そこで、図7に示すように回転テーブルaを傾けたPETボトル検査機を設け、液体容器dの底部の傾きと液体容器d内の傾斜面の液面e1の傾きとを同一にすることにより、相対的に液体容器d内の液面e1の傾きをなくして図5の容器検査部f1や、図6の容器検査部f2における検査精度を高めることが考えられている。なお、多少の液面e1の傾きは許容できるのが通常であり、検査精度により、液面e1の傾きの許容量が変化するようになっている。
【0010】
しかしながら、回転テーブルaの傾斜角度αを大きくした場合には前工程から搬送される液体容器dを繰入部cから回転テーブルaの容器受部に繰入たり、検査済みの液体容器dを操出部によって回転テーブルaから後工程に操出す作業が不安定になる。そのため、製品製造ラインの運転速度を高速化するうえで制限があるので、製品製造ラインの運転速度を高速化することが難しい問題がある。
【0011】
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、回転テーブル上で液体容器の外観検査を高速に行う場合でも安定に検査を行うことができるとともに、回転テーブルへの液体容器の繰入、操出作業を安定に行うことができる液体容器検査装置を提供することにある。
【0012】
【課題を解決するための手段】
請求項1の本発明は、外周部位に複数の容器受部が周方向に沿って並設された回転テーブルを備え、前工程から搬送される液体容器を前記回転テーブルの容器受部に繰入れる繰入部と、前記液体容器の外観検査を行う容器検査部と、検査済みの前記液体容器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容器検査部に搬送される前記液体容器の外観検査を連続的に行う液体容器検査装置において、
前記回転テーブルを水平面よりも傾斜させた傾斜テーブルによって形成するとともに、複数の前記容器受部が並設される前記傾斜テーブルの外周部位に前記傾斜テーブルよりも傾斜角度が大きい状態に屈曲させた屈曲部を設け、
前記回転テーブルの回転時に作用する遠心力により前記液体容器内の液面が傾く際の前記液体容器内の液面の傾きと前記容器検査部の位置における前記液体容器底部の傾きとを略同一に設定したことを特徴とする液体容器検査装置である。
そして、本請求項1の発明では、複数の容器受部が並設される傾斜テーブルの外周部位に傾斜テーブルよりも傾斜角度を大きくした屈曲部を形成し、回転テーブルの回転時に作用する遠心力により液体容器内の液面が傾く際の液体容器内の液面の傾きと容器検査部の位置における傾斜テーブルの屈曲部上の液体容器底部の傾きとを略同一に設定したことにより、回転テーブル上で液体容器の外観検査を高速に行う場合でも安定に検査を行うことができ、容器検査部における検査精度を高めるとともに、繰入部および操出部では、傾斜テーブルの屈曲部の容器受部が略水平面上に配置されるようにして回転テーブルへの液体容器の繰入、操出作業を安定に行うようにしたものである。
【0013】
請求項2の本発明は、前記繰入部は、前記操出部と近接させた前記液体容器の受け渡し位置に配置され、
前記容器検査部は、前記回転テーブルの回転方向に沿って前記受け渡し位置に対して略180°離れた位置に配置されていることを特徴とする請求項1に記載の液体容器検査装置である。
そして、本請求項2の発明では、繰入部と操出部とを近接させた液体容器の受け渡し位置と容器検査部とを回転テーブルの回転方向に沿って受け渡し位置に対して略180°離れた位置に配置することにより、回転テーブルの回転時に作用する遠心力により液体容器内の液面が傾く際の液体容器内の液面の傾きと容器検査部の位置における傾斜テーブルの屈曲部上の液体容器底部の傾きとを略同一に設定した場合でも、繰入部および操出部では、傾斜テーブルの屈曲部の容器受部が略水平面上に配置できるようにしたものである。
【0014】
請求項3の本発明は、前記傾斜テーブルは、前記受け渡し位置における前記屈曲部の前記容器受部が略水平面上に配置される状態に設定されていることを特徴とする請求項1に記載の液体容器検査装置である。
そして、本請求項3の発明では、受け渡し位置における傾斜テーブルの屈曲部の容器受部が略水平面上に配置されることにより、回転テーブルへの液体容器の繰入、操出作業時の液体容器の乗り移りを安定化させるようにしたものである。
【0015】
請求項4の本発明は、前記容器検査部は、前記液体容器に照明光を照射する光源部と、
前記液体容器に対して前記光源部と略反対位置から前記液体容器の外観検査を行う光学装置とを備えていることを特徴とする請求項1に記載の液体容器検査装置である。
そして、本請求項4の発明では、容器検査部では、光源部から液体容器に照明光を照射し、液体容器に対して光源部と略反対位置の光学装置から液体容器の外観検査を行うようにしたものである。
【0016】
請求項5の本発明は、前記傾斜テーブルは、前記回転テーブルの回転時に作用する遠心力により前記液体容器内の液面が傾く際の前記液体容器内の液面の最大傾き角度αの1/2を前記傾斜テーブルのテーブル傾斜角度に設定したものであることを特徴とする請求項1に記載の液体容器検査装置である。
そして、本請求項5の発明では、回転テーブルの回転時に作用する遠心力により液体容器内の液面が傾く際の液体容器内の液面の最大傾き角度αの1/2を傾斜テーブルのテーブル傾斜角度に設定したことにより、回転テーブルの傾斜を最小限にし、容器検査部における液体容器の傾きを最大にし、かつ回転テーブルへの液体容器の繰入、操出作業時の液体容器の乗り移りを安定化させるようにしたものである。
【0017】
【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3を参照して説明する。図1はPETボトルなどの液体容器1に液体商品を充填する作業や、液体商品が充填された液体容器1の外観検査などを自動的に行なうオートメーションの製品製造ライン2の要部の概略構成を示すものである。
【0018】
図1中で、3は容器処理装置の本体、4はこの容器処理装置本体3に液体容器1を供給する容器供給用の搬送ライン、5は容器処理装置本体3内で処理された処理済の液体容器1を繰り出す繰り出し用の搬送ラインである。ここで、液体容器供給用の搬送ライン4には液体容器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に沿って液体容器1を容器処理装置本体3側に圧送するスクリュー4bとが設けられている。そして、スクリュー4bの溝とガイド部材4aとの間の空間に液体容器1がセットされ、スクリュー4bの回転にともない液体容器1が容器処理装置本体3側に順次、供給されるようになっている。
【0019】
さらに、容器処理装置本体3の内部には、液体容器1に液体商品を充填する作業や、液体商品が充填された液体容器1の外観検査などを行なうロータリー式の作業装置7と、容器供給用の搬送ライン4から供給される液体容器1を作業装置7に繰り入れる繰り入れ装置(繰入部)8と、作業装置7から繰り出される処理済の液体容器1を繰り出し用の搬送ライン5に繰り出す繰り出し装置(操出部)9とが設けられている。
【0020】
また、繰り入れ装置8および繰り出し装置9には回転軸10を中心に回転可能に支持されたスターホイール11と、このスターホイール11の周囲に配設されたガイド部材12とが設けられている。さらに、スターホイール11の外周面には複数の容器収納用の凹部13が形成されている。そして、容器供給用の搬送ライン4から供給される液体容器1は繰り入れ装置8側のスターホイール11の容器収納用凹部13内に順次、挿入され、作業装置7に供給されるとともに、作業装置7から繰り出される処理済の液体容器1は繰り出し装置9側のスターホイール11の容器収納用凹部13内に順次、挿入され、繰り出し用の搬送ライン5に繰り出されるようになっている。
【0021】
また、ロータリー式の作業装置7には本実施の形態の液体容器検査装置であるPETボトル検査機14が組み込まれている。このPETボトル検査機14にはロータリー式の作業装置7自体によって形成される回転テーブル15が設けられている。この回転テーブル15は図2に示すように水平面Hよりも傾斜させた傾斜テーブル16によって形成されている。そして、この回転テーブル15の周方向の一部に繰り入れ装置8と繰り出し装置9とを近接させた液体容器の受け渡し位置S1が配置されている。さらに、この回転テーブル15の回転方向に沿って受け渡し位置S1に対して略180°離れた位置S2に図5または図6に示す構成の容器検査部17が配置されている。
【0022】
また、この回転テーブル15の軸心部には駆動モータ18などの駆動機構が配設されている。さらに、傾斜テーブル16の外周部位にはこの傾斜テーブル16の本体よりも傾斜角度が大きい状態に屈曲させた屈曲部19が設けられている。この屈曲部19には液体容器1を保持する複数の容器受部20が並設されている。ここで、屈曲部19の傾斜角度αは、回転テーブル15の回転時に作用する遠心力により液体容器1内の液面L1が傾く際の液体容器1内の液面L1の傾きと容器検査部17の位置S2における液体容器1の底部の傾きとが略同一(液体容器1内の液面L1と、容器検査部17の位置S2における傾斜テーブル16の屈曲部19の面とが平行)になるように設定されている。
【0023】
さらに、傾斜テーブル16のテーブル傾斜角度βは、回転テーブル15の回転時に作用する遠心力により液体容器1内の液面L1が傾く際の液体容器1内の液面L1の最大傾き角度αの1/2に設定されている。例えば、一例として回転テーブル15の回転速度が20rpm、回転テーブル15の回転中心位置と、屈曲部19の容器受部20の中心線位置との間の距離が0.475mの場合には、水平面に対する屈曲部19の傾斜角度αは12°、傾斜テーブル16のテーブル傾斜角度βは6°にそれぞれ設定されている。そして、このときの回転テーブル15の回転時に作用する遠心力により液体容器1内の液面L1が傾く際の水平面L0に対する液体容器1内の液面L1の傾き角度αは12°になる。なお、回転テーブル15の回転速度と、水平面L0に対する液体容器1内の液面L1の傾き角度αとの関係は図3に示す関係になっている。
【0024】
また、傾斜テーブル16は、受け渡し位置S1における屈曲部19の容器受部20が略水平面上に配置される状態に設定されている。これにより、製品製造ラインの運転速度を高速化した場合でも液体容器1を繰り入れ装置8側のスターホイール11から回転テーブル15の屈曲部19の容器受部20に繰り入れる動作や、回転テーブル15の屈曲部19の容器受部20から処理済の液体容器1を繰り出し装置9側のスターホイール11に繰り出す動作などが円滑に行われ、液体容器1の乗り移り動作を安定化させるようになっている。
【0025】
次に、上記構成の作用について説明する。本実施の形態のオートメーションの製品製造ライン2の駆動時には容器供給用の搬送ライン4から液体容器1が容器処理装置本体3側に順次、供給される。さらに、容器供給用の搬送ライン4から供給される液体容器1は繰り入れ装置8側のスターホイール11の容器収納用凹部13内に順次、挿入され、作業装置7に供給される。
【0026】
また、作業装置7に供給される液体容器1は前工程から搬送される液体容器1の受け渡し位置S1で作業装置7における傾斜テーブル16の屈曲部19の容器受部20側に移載される。さらに、傾斜テーブル16の容器受部20側に移載された液体容器1は回転テーブル15の回転にともない容器検査部17側に搬送される。このとき、回転テーブル15の回転時に液体容器1に作用する周方向の加速度および遠心力により液体容器1内の液面L1が傾く。
【0027】
そして、液体容器1内の液面L1が傾いたままの状態で、容器検査部17で回転テーブル15上の各液体容器1の外観検査が行われる。このとき、容器検査部17では図5に示すように液体容器1の横方向から照明光を照射して液体容器1に対して光源部g1と略反対位置から液体容器1の外観検査を行うカメラh1などの光学装置によって液体容器1の液中に混入している異物の検査を行うようになっている。或いは、図6に示すように液体容器1の上方向から照明光を照射して液体容器1の下方から液体容器1の外観検査を行うカメラh2などの光学装置によって液体容器1に沈殿している異物の検査を行うようになっている。
【0028】
さらに、作業装置7から繰り出される処理済の液体容器1は繰り出し装置9側のスターホイール11の容器収納用凹部13内に順次、挿入され、繰り出し用の搬送ライン5に繰り出される。
【0029】
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PETボトル検査機14では複数の容器受部20が並設される傾斜テーブル16の外周部位にこの傾斜テーブル16よりも傾斜角度を大きくした屈曲部19を形成し、回転テーブル15の回転時に作用する遠心力により液体容器1内の液面L1が傾く際の液体容器1内の液面L1の傾きと容器検査部17の位置における傾斜テーブル16の屈曲部19上の液体容器1の底部の傾きとを略同一になるように設定している。そのため、この容器検査部17による回転テーブル15上の各液体容器1の外観検査時には、回転テーブル15上で液体容器1の外観検査を高速に行う場合でも安定に検査を行うことができ、容器検査部17における検査精度を高めることができる。
【0030】
また、繰り入れ装置8と繰り出し装置9とを近接させた液体容器1の受け渡し位置S1と、容器検査部17とを回転テーブル15の回転方向に沿って略180°離れた位置に配置したので、回転テーブル15の回転時に作用する遠心力により液体容器1内の液面L1が傾く際の液体容器1内の液面L1の傾きと容器検査部17の位置における傾斜テーブル16の屈曲部17上の液体容器1の底部の傾きとを略同一に設定した場合でも液体容器1の受け渡し位置S1では、傾斜テーブル16の屈曲部17の容器受部20を略水平面上に配置させることができる。そして、この繰り入れ装置8と繰り出し装置9とを近接させた液体容器の受け渡し位置S1では、傾斜テーブル16の屈曲部19の容器受部20が略水平面上に配置されるようにしているので、回転テーブル15への液体容器1の繰入、操出作業を安定に行うことができ、回転テーブル15への液体容器1の繰入、操出作業時の液体容器1の乗り移りを安定化させることができる。
【0031】
また、本実施の形態の容器検査部17では、図5に示すように液体容器1の横方向から照明光を照射した場合に、液体容器1内の液面L1に対して略平行に照明光を照射することができるので、従来のように液体容器1内の液面L1で照明光の反射方向が変化し、液体容器1内の傾斜面の液面L1の部分の照明が不均一になるおそれがない。さらに、図6に示すように液体容器1の上方向から照明光を照射した場合には液体容器1内の液面L1に対して略直交する方向から照明光を照射することができるので、この場合も液体容器1内の液面L1で照明光の反射方向が変化するおそれがなく、液体容器1内の傾斜面の液面L1の部分の照明が不均一になるおそれがない。そのため、容器検査部17で液体容器1の液中に混入している異物の検査や、液体容器1に沈殿している異物の検査を行う際の検査精度を高めることができる。
【0032】
また、回転テーブル15の回転時に作用する遠心力により液体容器1内の液面L1が傾く際の液体容器1内の液面L1の最大傾き角度αの1/2を傾斜テーブル16のテーブル傾斜角度βに設定したので、傾斜テーブル16のテーブル傾斜角度βを最小限にした状態で、容器検査部17における液体容器1の傾き角度αを最大にすることができ、かつ回転テーブル15への液体容器1の繰入、操出作業時の液体容器1の乗り移りを安定化させることができる。
【0033】
なお、実際の検査においては液面の傾きは許容できる場合が多く、低能力運転の検査では支障が無いが高能力運転では検査の許容液面角度を超えてしまう場合がある。そこで、本実施の形態の容器検査部17で、図5に示すように液体容器1の横方向から検査用の照明光を照射する場合に、カメラh1などの光学装置の光軸方向を、回転テーブル15の回転時に作用する遠心力により液体容器1内の液面L1が傾く際の液体容器1内の液面L1の最大傾き角度αの1/2の傾斜角度に設定してもよい。この場合には検査時の能力変化(回転テーブル15の回転速度変化)に対する許容が大きくなり、停止時から最高能力時の液面角度αまで全て検査可能となる。
【0034】
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。
【0035】
【発明の効果】
請求項1の発明によれば、回転テーブルを水平面よりも傾斜させた傾斜テーブルによって形成するとともに、複数の容器受部が並設される傾斜テーブルの外周部位に傾斜テーブルよりも傾斜角度が大きい状態に屈曲させた屈曲部を設け、回転テーブルの回転時に作用する遠心力により液体容器内の液面が傾く際の液体容器内の液面の傾きと容器検査部の位置における液体容器底部の傾きとを略同一に設定したので、回転テーブル上で液体容器の外観検査を高速に行う場合でも安定に検査を行うことができるとともに、回転テーブルへの液体容器の繰入、操出作業を安定に行うことができる。
【0036】
請求項2の発明によれば、繰入部と操出部とを近接させた液体容器の受け渡し位置と容器検査部とを回転テーブルの回転方向に沿って略180°離れた位置に配置することにより、回転テーブルの回転時に作用する遠心力により液体容器内の液面が傾く際の液体容器内の液面の傾きと容器検査部の位置における傾斜テーブルの屈曲部上の液体容器底部の傾きとを略同一に設定した場合でも、繰入部および操出部では、傾斜テーブルの屈曲部の容器受部が略水平面上に配置することができる。
【0037】
請求項3の発明によれば、受け渡し位置における傾斜テーブルの屈曲部の容器受部が略水平面上に配置されることにより、回転テーブルへの液体容器の繰入、操出作業時の液体容器の乗り移りを安定化させることができる。
【0038】
請求項4の発明によれば、容器検査部で、光源部から液体容器に照明光を照射し、液体容器に対して光源部と略反対位置の光学装置から液体容器の外観検査を行うことができる。
【0039】
請求項5の発明によれば、回転テーブルの回転時に作用する遠心力により液体容器内の液面が傾く際の液体容器内の液面の最大傾き角度αの1/2を傾斜テーブルのテーブル傾斜角度に設定したことにより、回転テーブルの傾斜を最小限にし、容器検査部における液体容器の傾きを最大にし、かつ回転テーブルへの液体容器の繰入、操出作業時の液体容器の乗り移りを安定化させることができる。
【図面の簡単な説明】
【図1】本発明の第1の実施の形態のPETボトル検査機が組み込まれているオートメーションの製品製造ラインの概略構成図。
【図2】第1の実施の形態のPETボトル検査機の要部の概略構成図。
【図3】第1の実施の形態のPETボトル検査機における回転テーブルの回転時に作用する遠心力による容器内の液面の傾き状態を示す特性図。
【図4】従来のPETボトル検査機の要部の概略構成図。
【図5】容器検査部の概略構成図。
【図6】図5とは異なる方式の容器検査部の概略構成図。
【図7】回転テーブルを傾けたPETボトル検査機の要部の概略構成図。
【符号の説明】
1 液体容器
8 繰り入れ装置(繰入部)
9 繰り出し装置(操出部)
15 回転テーブル
16 傾斜テーブル
17 容器検査部
19 屈曲部
20 容器受部
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a liquid container inspection device that performs an appearance inspection of a liquid container already filled with a liquid in a high-speed filling line that fills a liquid product such as a PET bottle with a liquid product.
[0002]
[Prior art]
2. Description of the Related Art Generally, an automated product manufacturing line that automatically performs an operation of filling a liquid product into a liquid container such as a PET bottle has been used. In this type of product manufacturing line, an appearance inspection of a liquid-filled liquid container filled with liquid is simultaneously performed in the manufacturing line.
[0003]
In addition, as a liquid container inspection device that performs an appearance inspection of a liquid container that has been filled with liquid, a rotary container transport line including a rotary table in which a plurality of container receiving portions are arranged in a circumferential direction along an outer peripheral portion is provided. By arranging a container inspection unit for inspecting the appearance of the liquid container in the middle of the container transport line, it is considered that the appearance inspection of the liquid container is performed at high speed. Here, around the rotary table, a feeding section for feeding the liquid container conveyed from the previous process into the container receiving section of the rotary table, a container inspection section for performing an appearance inspection of the liquid container, and rotating the inspected liquid container. An operation section for operating from a table to a subsequent process is sequentially provided. Then, during the rotation of the rotary table, after the liquid container conveyed from the previous process is continuously fed into the container receiving portion of the rotary table from the feeding section, the container inspection section inspects the liquid container conveyed by the rotary table. The operation is performed continuously, and the inspected liquid container is operated by the operation unit from the rotary table to a subsequent process.
[0004]
FIG. 4 shows a turntable a. A drive mechanism such as a drive motor b is disposed at the axis of the turntable a. Further, c is a feeding section for feeding the liquid container d conveyed from the previous process into the container receiving section of the rotary table a. Here, since the plurality of container receiving portions of the rotary table a are arranged side by side along the circumferential direction at the outer peripheral portion of the rotary table a, the liquid containers d accommodated in each container receiving portion when the rotary table a rotates. Is subjected to circumferential acceleration and centrifugal force. Therefore, the liquid level e1 in each liquid container d is inclined such that the outer end of the rotation is higher than the end of the rotation center as shown in FIG. In FIG. 4, a dotted line indicates a horizontal plane that is the liquid level e0 in the liquid container d when the rotation of the turntable a is stopped. When the transport speed of the liquid container d in the product manufacturing line is increased, the circumferential acceleration and the centrifugal force acting on the liquid container d when the turntable a rotates are increased. The inclination angle α of the liquid surface e1 of the inclined surface in each liquid container d with respect to is increased.
[0005]
FIG. 5 shows an example of a container inspection unit f1 for inspecting the appearance of each liquid container d on the rotary table a. The container inspection unit f1 includes a light source unit g1 that irradiates illumination light from a lateral direction of the liquid container d, and a camera h1 that performs an appearance inspection of the liquid container d from a position substantially opposite to the light source unit g1 with respect to the liquid container d. An optical device is provided. Then, an inspection of a foreign substance mixed in the liquid of the liquid container d is performed by an optical device such as the camera h1.
[0006]
Further, FIG. 6 shows a schematic configuration of a container inspection unit f2 of a system different from that of FIG. The container inspection unit f2 is provided with a light source unit g2 for irradiating illumination light from above the liquid container d, and an optical device such as a camera h2 for inspecting the appearance of the liquid container d from below the liquid container d. . Then, an inspection of foreign substances settling in the liquid container d is performed by an optical device such as a camera h2.
[0007]
[Problems to be solved by the invention]
However, the circumferential acceleration and the centrifugal force acting on the liquid container d when the turntable a rotates are increased, and the inclination angle α of the inclined surface in each liquid container d with respect to the horizontal liquid surface e0 is increased. In this case, in the container inspection unit f1 of FIG. 5, the portion of the inclined liquid surface e1 in each liquid container d (between the end of the inclined liquid surface e1 on the rotation center side and the outer end of the rotation). The reflection direction of the illumination light from the light source unit g1 changes in the range i), and the illumination of the liquid surface e1 of the inclined surface in the liquid container d becomes non-uniform. There is a problem that the inspection accuracy when inspecting foreign substances mixed in the liquid d becomes low.
[0008]
Similarly, in the container inspection unit f2 in FIG. 6, the reflection direction of the illumination light from the light source unit g2 changes at the liquid surface e1 of the inclined surface in each liquid container d, and the liquid on the inclined surface in the liquid container d also changes. Since the illumination of the portion of the surface e1 becomes non-uniform, there is a problem that the inspection accuracy when inspecting the foreign matter settled in the liquid container d by the optical device such as the camera h2 is lowered.
[0009]
Therefore, as shown in FIG. 7, a PET bottle inspection machine in which the rotary table a is inclined is provided, and the inclination of the bottom of the liquid container d is equal to the inclination of the liquid surface e1 of the inclined surface in the liquid container d. It has been considered that the inclination of the liquid level e1 in the liquid container d is relatively eliminated to increase the inspection accuracy in the container inspection unit f1 in FIG. 5 and the container inspection unit f2 in FIG. It should be noted that a slight inclination of the liquid surface e1 is generally acceptable, and the allowable amount of the inclination of the liquid surface e1 changes depending on the inspection accuracy.
[0010]
However, when the inclination angle α of the turntable a is increased, the liquid container d conveyed from the previous process is transferred from the transfer portion c to the container receiving portion of the turntable a, or the inspected liquid container d is picked up. The operation of moving the rotary table a to the subsequent process from the rotary table a becomes unstable. Therefore, there is a limitation in increasing the operating speed of the product manufacturing line, and there is a problem that it is difficult to increase the operating speed of the product manufacturing line.
[0011]
The present invention has been made in view of the above circumstances, and its object is to stably inspect the appearance of a liquid container on a rotary table even when performing a high-speed appearance inspection of the liquid container. An object of the present invention is to provide a liquid container inspection device capable of stably performing a transfer operation and an operation operation.
[0012]
[Means for Solving the Problems]
The present invention according to claim 1 is provided with a rotary table having a plurality of container receiving portions arranged along the circumferential direction at an outer peripheral portion, and the liquid container transported from the previous process is fed into the container receiving portion of the rotary table. A feeding unit, a container inspection unit that performs an appearance inspection of the liquid container, and a control unit that controls the inspected liquid container from the rotary table to a subsequent process are sequentially disposed around the rotary table, In a liquid container inspection device that continuously performs an appearance inspection of the liquid container conveyed to the container inspection unit with the rotation of the turntable,
The rotary table is formed by a tilt table that is tilted from a horizontal plane, and a bend is formed in a state where the tilt angle is larger than the tilt table at an outer peripheral portion of the tilt table on which a plurality of the container receiving portions are juxtaposed. Part,
The inclination of the liquid surface in the liquid container when the liquid surface in the liquid container inclines due to the centrifugal force acting when the turntable rotates is substantially the same as the inclination of the liquid container bottom at the position of the container inspection unit. It is a liquid container inspection device characterized by having been set.
According to the first aspect of the present invention, a bent portion having a larger tilt angle than that of the tilt table is formed at an outer peripheral portion of the tilt table in which the plurality of container receiving portions are arranged in parallel, and a centrifugal force acting when the rotary table rotates. By setting the inclination of the liquid surface in the liquid container when the liquid surface in the liquid container is inclined and the inclination of the liquid container bottom on the bent portion of the inclination table at the position of the container inspection unit to be substantially the same, Even when performing a high-speed visual inspection of the liquid container above, the inspection can be performed stably, and the inspection accuracy in the container inspection unit is improved. The liquid container is arranged on a substantially horizontal surface so that the liquid container can be stably fed into and out of the rotary table.
[0013]
In the present invention of claim 2, the feeding section is disposed at a delivery position of the liquid container brought close to the control section,
2. The liquid container inspection device according to claim 1, wherein the container inspection unit is disposed at a position approximately 180 ° apart from the transfer position along a rotation direction of the turntable. 3.
According to the second aspect of the present invention, the delivery position of the liquid container in which the feeding portion and the feeding portion are brought close to each other and the container inspection portion are separated from the delivery position by approximately 180 ° along the rotation direction of the turntable. Position, the liquid level in the liquid container when the liquid level in the liquid container tilts due to the centrifugal force acting when the rotary table rotates, and the liquid on the bent portion of the tilt table at the position of the container inspection unit. Even when the inclination of the container bottom is set to be substantially the same, the container receiving portion of the bent portion of the inclined table can be arranged on a substantially horizontal plane in the feeding portion and the feeding portion.
[0014]
The present invention according to claim 3, wherein the tilt table is set in a state in which the container receiving portion of the bent portion at the transfer position is disposed on a substantially horizontal plane. This is a liquid container inspection device.
According to the third aspect of the present invention, since the container receiving portion of the bent portion of the inclined table at the transfer position is arranged on a substantially horizontal plane, the liquid container is moved into and out of the rotating table during the operation of the rotating table. It is intended to stabilize the transfer.
[0015]
The present invention according to claim 4, wherein the container inspection unit is configured to irradiate the liquid container with illumination light,
The liquid container inspection device according to claim 1, further comprising: an optical device that performs an appearance inspection of the liquid container from a position substantially opposite to the light source unit with respect to the liquid container.
According to the fourth aspect of the present invention, the container inspection unit irradiates the liquid container with illumination light from the light source unit and performs an appearance inspection of the liquid container from an optical device substantially opposite to the light source unit with respect to the liquid container. It was made.
[0016]
According to a fifth aspect of the present invention, in the tilt table, the liquid table in the liquid container is tilted by a centrifugal force acting when the rotary table is rotated. 2. The liquid container inspection device according to claim 1, wherein 2 is set to a table tilt angle of the tilt table.
According to the fifth aspect of the present invention, half of the maximum inclination angle α of the liquid surface in the liquid container when the liquid surface in the liquid container is inclined by the centrifugal force acting when the rotary table rotates is determined by the table of the inclination table. By setting the inclination angle, the inclination of the rotary table is minimized, the inclination of the liquid container in the container inspection unit is maximized, and the transfer of the liquid container to the rotary table and the transfer of the liquid container at the time of operation are performed. It is intended to be stabilized.
[0017]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. FIG. 1 shows a schematic configuration of a main part of an automated product manufacturing line 2 for automatically performing a work of filling a liquid container 1 such as a PET bottle with a liquid product and an appearance inspection of the liquid container 1 filled with the liquid product. It is shown.
[0018]
In FIG. 1, 3 is a main body of the container processing apparatus, 4 is a transport line for supplying a container for supplying the liquid container 1 to the main body 3 of the container processing apparatus, and 5 is a processed line processed in the main body 3 of the container processing apparatus. This is a delivery line for delivering the liquid container 1. Here, a guide member 4 a that forms a transfer path for the liquid container 1 is provided on the transfer line 4 for supplying the liquid container, and a screw 4 b that feeds the liquid container 1 to the container processing apparatus main body 3 side along the guide member 4 a. Is provided. The liquid container 1 is set in a space between the groove of the screw 4b and the guide member 4a, and the liquid container 1 is sequentially supplied to the container processing apparatus main body 3 with the rotation of the screw 4b. .
[0019]
Further, inside the container processing apparatus main body 3, there is provided a rotary working device 7 for performing an operation of filling the liquid container 1 with the liquid product, an appearance inspection of the liquid container 1 filled with the liquid product, and a container supply device. (A feeding unit) 8 for feeding the liquid container 1 supplied from the transport line 4 into the working device 7 and a feeding device (feeding device) for feeding the processed liquid container 1 fed from the working device 7 to the feeding line 5 for feeding. Operating section 9).
[0020]
Further, the feeding device 8 and the feeding device 9 are provided with a star wheel 11 rotatably supported around a rotation shaft 10 and a guide member 12 disposed around the star wheel 11. Further, a plurality of recesses 13 for housing containers are formed on the outer peripheral surface of the star wheel 11. The liquid containers 1 supplied from the container supply transport line 4 are sequentially inserted into the container storage recesses 13 of the star wheel 11 on the transfer device 8 side, supplied to the working device 7, and supplied to the working device 7. The processed liquid container 1 fed out of the feeding device 9 is sequentially inserted into the container storage recess 13 of the star wheel 11 on the feeding device 9 side, and fed out to the feeding transfer line 5.
[0021]
Further, a PET bottle inspection machine 14 as the liquid container inspection device of the present embodiment is incorporated in the rotary working device 7. The PET bottle inspection machine 14 is provided with a rotary table 15 formed by the rotary working device 7 itself. As shown in FIG. 2, the rotary table 15 is formed by a tilt table 16 tilted from a horizontal plane H. A delivery position S1 of the liquid container in which the feeding device 8 and the feeding device 9 are brought close to each other is arranged at a part of the rotary table 15 in the circumferential direction. Further, a container inspection unit 17 having the configuration shown in FIG. 5 or FIG. 6 is arranged at a position S2 which is approximately 180 ° apart from the transfer position S1 along the rotation direction of the turntable 15.
[0022]
A drive mechanism such as a drive motor 18 is provided at an axis of the turntable 15. Further, a bent portion 19 which is bent to a state where the tilt angle is larger than the main body of the tilt table 16 is provided at an outer peripheral portion of the tilt table 16. A plurality of container receiving portions 20 for holding the liquid container 1 are provided in parallel with the bent portion 19. Here, the inclination angle α of the bent portion 19 is determined by the inclination of the liquid surface L1 in the liquid container 1 when the liquid surface L1 in the liquid container 1 is inclined by the centrifugal force acting when the turntable 15 rotates, and the container inspection unit 17. Is approximately the same as the inclination of the bottom of the liquid container 1 at the position S2 (the liquid surface L1 in the liquid container 1 is parallel to the surface of the bent portion 19 of the inclination table 16 at the position S2 of the container inspection unit 17). Is set to
[0023]
Further, the table tilt angle β of the tilt table 16 is 1 of the maximum tilt angle α of the liquid level L1 in the liquid container 1 when the liquid level L1 in the liquid container 1 tilts due to the centrifugal force acting when the rotary table 15 rotates. / 2 is set. For example, as an example, when the rotation speed of the turntable 15 is 20 rpm, and the distance between the rotation center position of the turntable 15 and the center line position of the container receiving portion 20 of the bent portion 19 is 0.475 m, The inclination angle α of the bent portion 19 is set to 12 °, and the table inclination angle β of the inclination table 16 is set to 6 °. Then, the inclination angle α of the liquid level L1 in the liquid container 1 with respect to the horizontal plane L0 when the liquid level L1 in the liquid container 1 is inclined by the centrifugal force acting when the turntable 15 rotates at this time becomes 12 °. The relationship between the rotation speed of the turntable 15 and the inclination angle α of the liquid level L1 in the liquid container 1 with respect to the horizontal plane L0 is as shown in FIG.
[0024]
Further, the tilt table 16 is set in a state in which the container receiving portion 20 of the bent portion 19 at the transfer position S1 is arranged on a substantially horizontal plane. Thereby, even when the operation speed of the product manufacturing line is increased, the operation of feeding the liquid container 1 from the star wheel 11 on the feeding device 8 side to the container receiving portion 20 of the bending portion 19 of the rotary table 15 and the bending of the rotary table 15 are performed. The operation of feeding the processed liquid container 1 from the container receiving portion 20 of the portion 19 to the star wheel 11 of the feeding device 9 and the like are performed smoothly, and the transfer operation of the liquid container 1 is stabilized.
[0025]
Next, the operation of the above configuration will be described. When the automation product manufacturing line 2 of the present embodiment is driven, the liquid containers 1 are sequentially supplied to the container processing apparatus main body 3 from the container supply transport line 4. Further, the liquid containers 1 supplied from the container supply transport line 4 are sequentially inserted into the container storage recesses 13 of the star wheel 11 on the transfer device 8 side, and supplied to the working device 7.
[0026]
Further, the liquid container 1 supplied to the working device 7 is transferred to the container receiving portion 20 side of the bent portion 19 of the inclined table 16 in the working device 7 at the transfer position S1 of the liquid container 1 conveyed from the previous process. Further, the liquid container 1 transferred to the container receiving section 20 side of the inclined table 16 is conveyed to the container inspection section 17 side as the turntable 15 rotates. At this time, the liquid level L1 in the liquid container 1 is inclined by the circumferential acceleration and the centrifugal force acting on the liquid container 1 when the turntable 15 rotates.
[0027]
Then, while the liquid surface L1 in the liquid container 1 is kept inclined, the appearance inspection of each liquid container 1 on the turntable 15 is performed by the container inspection unit 17. At this time, the container inspection unit 17 irradiates illumination light from the lateral direction of the liquid container 1 and performs a visual inspection of the liquid container 1 from a position substantially opposite to the light source unit g1 as shown in FIG. Inspection of a foreign substance mixed in the liquid in the liquid container 1 is performed by an optical device such as h1. Alternatively, as shown in FIG. 6, the liquid container 1 is settled in the liquid container 1 by an optical device such as a camera h2 that irradiates illumination light from above and inspects the appearance of the liquid container 1 from below the liquid container 1. Inspection for foreign substances is performed.
[0028]
Further, the processed liquid container 1 fed from the working device 7 is sequentially inserted into the container storage recess 13 of the star wheel 11 on the feeding device 9 side, and is fed to the feed line 5 for feeding.
[0029]
Therefore, the above configuration has the following effects. That is, in the PET bottle inspection machine 14 of the present embodiment, a bent portion 19 whose inclination angle is larger than that of the inclined table 16 is formed on the outer peripheral portion of the inclined table 16 in which the plurality of container receiving portions 20 are arranged in parallel, and The inclination of the liquid surface L1 in the liquid container 1 when the liquid surface L1 in the liquid container 1 is inclined by the centrifugal force acting when the table 15 rotates, and the liquid on the bent portion 19 of the inclination table 16 at the position of the container inspection unit 17 The inclination of the bottom of the container 1 is set to be substantially the same. Therefore, when the appearance inspection of each liquid container 1 on the turntable 15 is performed by the container inspection unit 17, even when the appearance inspection of the liquid container 1 is performed on the turntable 15 at high speed, the inspection can be performed stably. The inspection accuracy in the unit 17 can be improved.
[0030]
In addition, the delivery position S1 of the liquid container 1 in which the feeding device 8 and the feeding device 9 are brought close to each other, and the container inspection unit 17 are disposed at positions substantially 180 ° apart along the rotation direction of the turntable 15, so that rotation The inclination of the liquid surface L1 in the liquid container 1 when the liquid surface L1 in the liquid container 1 is inclined by the centrifugal force acting when the table 15 rotates, and the liquid on the bent portion 17 of the inclination table 16 at the position of the container inspection unit 17 Even when the inclination of the bottom of the container 1 is set to be substantially the same, the container receiving portion 20 of the bent portion 17 of the inclined table 16 can be arranged on a substantially horizontal plane at the transfer position S1 of the liquid container 1. At the transfer position S1 of the liquid container in which the feeding device 8 and the feeding device 9 are brought close to each other, the container receiving portion 20 of the bent portion 19 of the inclined table 16 is arranged on a substantially horizontal plane. The operation of moving the liquid container 1 into and out of the table 15 can be performed stably, and the operation of moving the liquid container 1 into and out of the turntable 15 during the operation of moving and moving the liquid container 1 can be stabilized. it can.
[0031]
Further, in the container inspection unit 17 of the present embodiment, when the illumination light is irradiated from the lateral direction of the liquid container 1 as shown in FIG. 5, the illumination light is substantially parallel to the liquid level L1 in the liquid container 1. Can be irradiated, the reflection direction of the illumination light changes at the liquid surface L1 in the liquid container 1 as in the conventional case, and the illumination of the liquid surface L1 on the inclined surface in the liquid container 1 becomes uneven. There is no fear. Further, as shown in FIG. 6, when the illumination light is irradiated from above the liquid container 1, the illumination light can be irradiated from a direction substantially orthogonal to the liquid level L1 in the liquid container 1. Also in this case, there is no possibility that the reflection direction of the illumination light changes at the liquid surface L1 in the liquid container 1, and there is no possibility that the illumination of the liquid surface L1 on the inclined surface in the liquid container 1 becomes uneven. Therefore, the inspection accuracy at the time of inspecting the foreign substance mixed in the liquid of the liquid container 1 and the inspection of the foreign substance precipitated in the liquid container 1 by the container inspection unit 17 can be improved.
[0032]
Further, 1/2 of the maximum inclination angle α of the liquid surface L1 in the liquid container 1 when the liquid surface L1 in the liquid container 1 is inclined by the centrifugal force acting when the rotating table 15 rotates is determined by the table inclination angle of the inclination table 16 is set to β, the inclination angle α of the liquid container 1 in the container inspection unit 17 can be maximized in a state where the table inclination angle β of the inclination table 16 is minimized, and the liquid container It is possible to stabilize the transfer of the liquid container 1 at the time of the transfer operation and the operation operation of the liquid container 1.
[0033]
In the actual inspection, the inclination of the liquid level is often allowable, and there is no problem in the inspection of the low capacity operation, but the allowable liquid level angle of the inspection may be exceeded in the high capacity operation. Therefore, when the container inspection unit 17 of the present embodiment irradiates the illumination light for inspection from the lateral direction of the liquid container 1 as shown in FIG. 5, the optical axis direction of the optical device such as the camera h1 is rotated. The inclination angle may be set to 1 / of the maximum inclination angle α of the liquid surface L1 in the liquid container 1 when the liquid surface L1 in the liquid container 1 is inclined by the centrifugal force acting when the table 15 rotates. In this case, the tolerance for the performance change (rotation speed change of the rotary table 15) at the time of inspection becomes large, and the inspection can be performed from the stop to the liquid level angle α at the maximum capacity.
[0034]
Further, the present invention is not limited to the above-described embodiment, and it goes without saying that various modifications can be made without departing from the spirit of the present invention.
[0035]
【The invention's effect】
According to the first aspect of the present invention, the rotary table is formed by the tilt table that is tilted from the horizontal plane, and the tilt angle is larger than the tilt table at the outer peripheral portion of the tilt table in which the plurality of container receiving portions are juxtaposed. The inclination of the liquid surface in the liquid container when the liquid surface in the liquid container is inclined due to the centrifugal force acting when the turntable rotates, and the inclination of the liquid container bottom at the position of the container inspection unit. Are set to be substantially the same, so that even when the appearance inspection of the liquid container is performed at high speed on the rotary table, the inspection can be performed stably, and the loading and unloading of the liquid container to and from the rotary table can be stably performed. be able to.
[0036]
According to the second aspect of the present invention, the delivery position of the liquid container in which the feeding portion and the operating portion are brought close to each other, and the container inspection portion are arranged at positions separated by approximately 180 ° along the rotation direction of the turntable. The inclination of the liquid surface in the liquid container when the liquid surface in the liquid container is inclined by the centrifugal force acting when the rotating table rotates, and the inclination of the liquid container bottom on the bent portion of the inclination table at the position of the container inspection unit. Even when they are set to be substantially the same, the container receiving portion of the bent portion of the inclined table can be arranged on a substantially horizontal plane in the feeding portion and the operating portion.
[0037]
According to the third aspect of the present invention, the container receiving portion of the bent portion of the inclined table at the transfer position is disposed on a substantially horizontal plane, so that the liquid container can be transferred to the rotary table and the liquid container can be removed during the operation. Transfers can be stabilized.
[0038]
According to the fourth aspect of the present invention, the container inspection unit irradiates the liquid container with the illumination light from the light source unit, and performs the appearance inspection of the liquid container from the optical device substantially opposite to the light source unit with respect to the liquid container. it can.
[0039]
According to the fifth aspect of the present invention, half of the maximum inclination angle α of the liquid surface in the liquid container when the liquid surface in the liquid container is inclined by the centrifugal force acting when the rotary table rotates is set to the table inclination of the inclination table. By setting the angle, the inclination of the rotating table is minimized, the inclination of the liquid container in the container inspection section is maximized, and the transfer of the liquid container to the rotating table and the transfer of the liquid container during the handling work are stable Can be changed.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram of an automation product manufacturing line incorporating a PET bottle inspection machine according to a first embodiment of the present invention.
FIG. 2 is a schematic configuration diagram of a main part of the PET bottle inspection machine according to the first embodiment.
FIG. 3 is a characteristic diagram illustrating a tilt state of a liquid level in a container due to a centrifugal force acting when the rotary table rotates in the PET bottle inspection machine according to the first embodiment.
FIG. 4 is a schematic configuration diagram of a main part of a conventional PET bottle inspection machine.
FIG. 5 is a schematic configuration diagram of a container inspection unit.
FIG. 6 is a schematic configuration diagram of a container inspection unit of a type different from that of FIG. 5;
FIG. 7 is a schematic configuration diagram of a main part of a PET bottle inspection machine in which a rotary table is inclined.
[Explanation of symbols]
1 liquid container 8 feeding device (feeding part)
9 Feeding device (control unit)
15 Rotary table 16 Tilt table 17 Container inspection unit 19 Bending unit 20 Container receiving unit

Claims (5)

外周部位に複数の容器受部が周方向に沿って並設された回転テーブルを備え、前工程から搬送される液体容器を前記回転テーブルの容器受部に繰入れる繰入部と、前記液体容器の外観検査を行う容器検査部と、検査済みの前記液体容器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容器検査部に搬送される前記液体容器の検査を連続的に行う液体容器検査装置において、
前記回転テーブルを水平面よりも傾斜させた傾斜テーブルによって形成するとともに、複数の前記容器受部が並設される前記傾斜テーブルの外周部位に前記傾斜テーブルよりも傾斜角度が大きい状態に屈曲させた屈曲部を設け、
前記回転テーブルの回転時に作用する遠心力により前記液体容器内の液面が傾く際の前記液体容器内の液面の傾きと前記容器検査部の位置における前記液体容器底部の傾きとを略同一に設定したことを特徴とする液体容器検査装置。
A rotating table in which a plurality of container receiving portions are arranged in the outer peripheral portion along the circumferential direction, a feeding portion for feeding a liquid container conveyed from a previous process into the container receiving portion of the rotary table, A container inspection unit that performs an appearance inspection, and a control unit that controls the inspected liquid container from the rotary table to a subsequent process are sequentially disposed around the rotary table, and the container is rotated as the rotary table rotates. In a liquid container inspection device that continuously inspects the liquid container conveyed to the inspection unit,
The rotary table is formed by a tilt table that is tilted from a horizontal plane, and a bend is formed in a state where the tilt angle is larger than the tilt table at an outer peripheral portion of the tilt table on which a plurality of the container receiving portions are juxtaposed. Part,
The inclination of the liquid surface in the liquid container when the liquid surface in the liquid container inclines due to the centrifugal force acting when the turntable rotates is substantially the same as the inclination of the liquid container bottom at the position of the container inspection unit. A liquid container inspection device, characterized by being set.
前記繰入部は、前記操出部と近接させた前記液体容器の受け渡し位置に配置され、
前記容器検査部は、前記回転テーブルの回転方向に沿って前記受け渡し位置に対して略180°離れた位置に配置されていることを特徴とする請求項1に記載の液体容器検査装置。
The feeding section is disposed at a delivery position of the liquid container that is brought close to the operation section,
2. The liquid container inspection device according to claim 1, wherein the container inspection unit is disposed at a position approximately 180 ° apart from the delivery position along a rotation direction of the turntable. 3.
前記傾斜テーブルは、前記受け渡し位置における前記屈曲部の前記容器受部が略水平面上に配置される状態に設定されていることを特徴とする請求項1に記載の液体容器検査装置。2. The liquid container inspection device according to claim 1, wherein the tilt table is set such that the container receiving portion of the bent portion at the transfer position is disposed on a substantially horizontal plane. 3. 前記容器検査部は、前記液体容器に照明光を照射する光源部と、
前記液体容器に対して前記光源部と略反対位置から前記液体容器の外観検査を行う光学装置とを備えていることを特徴とする請求項1に記載の液体容器検査装置。
The container inspection unit, a light source unit that irradiates the liquid container with illumination light,
The liquid container inspection device according to claim 1, further comprising: an optical device that performs an appearance inspection of the liquid container from a position substantially opposite to the light source unit with respect to the liquid container.
前記傾斜テーブルは、前記回転テーブルの回転時に作用する遠心力により前記液体容器内の液面が傾く際の前記液体容器内の液面の最大傾き角度αの略1/2を前記傾斜テーブルのテーブル傾斜角度に設定したものであることを特徴とする請求項1に記載の液体容器検査装置。The tilt table is configured to reduce the liquid table in the liquid container to approximately 1/2 of the maximum tilt angle α when the liquid surface in the liquid container tilts due to the centrifugal force acting when the rotary table rotates. The liquid container inspection device according to claim 1, wherein the inclination angle is set.
JP2000202363A 2000-07-04 2000-07-04 Liquid container inspection device Expired - Lifetime JP3579327B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2000202363A JP3579327B2 (en) 2000-07-04 2000-07-04 Liquid container inspection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000202363A JP3579327B2 (en) 2000-07-04 2000-07-04 Liquid container inspection device

Publications (2)

Publication Number Publication Date
JP2002022670A JP2002022670A (en) 2002-01-23
JP3579327B2 true JP3579327B2 (en) 2004-10-20

Family

ID=18699896

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000202363A Expired - Lifetime JP3579327B2 (en) 2000-07-04 2000-07-04 Liquid container inspection device

Country Status (1)

Country Link
JP (1) JP3579327B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105211319A (en) * 2015-10-23 2016-01-06 莆田市涵兴食品有限公司 A kind of fermented bean curd production line controlling soup amount in bean curd bottle

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6872895B2 (en) * 2002-02-12 2005-03-29 Pressco Technology Inc. Apparatus and method for providing spatially-selective on-line mass or volume measurements of manufactured articles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105211319A (en) * 2015-10-23 2016-01-06 莆田市涵兴食品有限公司 A kind of fermented bean curd production line controlling soup amount in bean curd bottle
CN105211319B (en) * 2015-10-23 2018-11-06 莆田市涵兴食品有限公司 The fermented bean curd production line of soup amount in a kind of controllable bean curd bottle

Also Published As

Publication number Publication date
JP2002022670A (en) 2002-01-23

Similar Documents

Publication Publication Date Title
JP5642081B2 (en) Apparatus for handling capsules and capsule processing equipment comprising such apparatus
TWI331552B (en)
KR101574357B1 (en) Industrial robot
JP6253288B2 (en) Article transfer device
TWI428203B (en) Duplex surface grinding machine
JP7382475B2 (en) Container inspection equipment
JP2009522125A (en) Workpiece polishing equipment
JP2022093656A (en) Article transfer facility
KR20190024981A (en) Alignment conveying device
JP3579327B2 (en) Liquid container inspection device
JP6257749B2 (en) Transport system and transported product inspection system
JP7369080B2 (en) linear conveyor
JP2005035736A (en) Conveying mechanism and fixed quantity filling machine
JP2566658B2 (en) Method and device for conveying optical lens, mirror, etc. in spherical surface processing device
JP2004018176A (en) Container attitude changing device
JPH10148601A (en) Carrying device for sample container
JP7316643B2 (en) HOLDING MEMBER FOR CONVEYING CYLINDRICAL CONTAINER AND CONVEYOR
JP6851184B2 (en) Goods transfer device
JP2019151441A (en) Article aligning/supplying apparatus
WO2023234010A1 (en) Article conveyance device
KR200181777Y1 (en) Supply device of index card
JP2001217297A (en) Substrate carrying method
JP2022144411A (en) Aligning device
JP4314325B2 (en) Conveying apparatus and drawing system
JPH0575262U (en) Bobbin feeding device for tray

Legal Events

Date Code Title Description
A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20040602

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20040622

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20040715

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

Ref document number: 3579327

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20080723

Year of fee payment: 4

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20090723

Year of fee payment: 5

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100723

Year of fee payment: 6

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110723

Year of fee payment: 7

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120723

Year of fee payment: 8

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120723

Year of fee payment: 8

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20150723

Year of fee payment: 11

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

EXPY Cancellation because of completion of term