JPH0317089B2 - - Google Patents
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- Publication number
- JPH0317089B2 JPH0317089B2 JP58058502A JP5850283A JPH0317089B2 JP H0317089 B2 JPH0317089 B2 JP H0317089B2 JP 58058502 A JP58058502 A JP 58058502A JP 5850283 A JP5850283 A JP 5850283A JP H0317089 B2 JPH0317089 B2 JP H0317089B2
- Authority
- JP
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- Prior art keywords
- ampoule
- inspection
- defective
- product
- ampoules
- Prior art date
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- 239000003708 ampul Substances 0.000 claims description 84
- 238000007689 inspection Methods 0.000 claims description 73
- 230000002950 deficient Effects 0.000 claims description 64
- 238000001514 detection method Methods 0.000 description 17
- 239000007788 liquid Substances 0.000 description 9
- 238000012360 testing method Methods 0.000 description 9
- 239000011888 foil Substances 0.000 description 7
- 230000035945 sensitivity Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000000605 extraction Methods 0.000 description 2
- 238000013102 re-test Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/90—Investigating the presence of flaws or contamination in a container or its contents
- G01N21/9018—Dirt detection in containers
- G01N21/9027—Dirt detection in containers in containers after filling
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0078—Testing material properties on manufactured objects
- G01N33/0081—Containers; Packages; Bottles
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Description
本発明はアンプルの検査装置、更に詳しくはア
ンプル，バイアル等の内容液を充填した被検査物
の映像を複数個のテレビジヨンカメラ等の検査手
段でとらえてその内容液に含む異物の存在を確認
するようにした検査装置に関する。
アンプル，バイアル類はその内容液にガラス破
片等の異物が誤つて混入することがあるので、従
来から内容液を旋回させてその中に含む異物をテ
レビジヨンカメラでとらえるようにした検査装置
が特公昭52−19798号、特公昭52−47914号等で提
案されている。しかし、これらの検査装置に備え
るカメラは一定の感度で異物を検知してアンプル
を良品と不良品に判別するのみのものであつたか
ら、近時の如く、内容液に含むより微少な異物の
検出が要求されて来てカメラの感度を上げると、
内容液の旋回に伴つて発生する微少な気泡をも検
出して、異物と気泡を区別することができず、し
たがつて気泡をも異物と検知せざるを得なかつた
ために、検査後の良品のアンプルの回収率が極度
に低下して生産性が悪くなる欠点があつた。
本発明は、上記従来例の欠点を除去すべく、ア
ンプルの検査手段として複数個のカメラを備え、
各カメラの異物検知感度を上げると同時に全カメ
ラの検知結果を総合して一定の基準でアンプルを
良品と不良品及び再検査品に判別し、再検査品の
アンプルは今一度複数個のカメラの検査を行わせ
るようにして、良品のアンプルの回収率を向上さ
せるようにしたものである。すなわち、本発明に
かかるアンプルの検査装置は、アンプルを投入位
置から少くとも１ケ所以上の検査位置を経て取出
位置へ搬送する搬送手段と、上記検査位置で夫々
アンプルを検査して良品と不良品に判別する複数
個の検査手段と、第１特定数以上の検査手段が良
品と判別すると良品と判定し、かつ第２特定数以
下の検査手段が良品と判別すると不良品と判定
し、さらに第１特定数未満で第２特定数こえる検
査手段が良品と判断すると再検査品と判定する判
定手段と、該判定手段の出力で再検査品と判定し
たアンプルを取出位置から投入位置または検査位
置へ戻す回帰手段を備えて、アンプルの再検査を
繰り返し行うようにしたことを特徴とするもので
ある。
以下、本発明を図面に示す実施例について詳細
に説明する。
第１図に示すアンプル検査装置において、検査
すべきアンプルａは順次仕込口１から仕込台３の
前方で仕込ガイド２で囲まれたベルトコンベア４
に送り込まれる。アンプルａは送出しベルトコン
ベア４で、両側のブリツジブレーカベルト５の助
けを受けながら、時計方向へ回転する仕込みスタ
ーホイル６の搬送ポケツト６ａへ一つずつ送り出
される。仕込みスターホイル６のアンプルａは反
時計方向へ回転する供給スターホイル７の搬送ポ
ケツト７ａを経て、検査ドラム８のホルダー９へ
順次供給される。時計方向へ回転する検査ドラム
８は、順次供給されるアンプルａを上下一対のホ
ルダー９ａ，９ｂでアンプルａの底面と肩部を保
持し乍ら、第１位置でアンプルをその軸芯の回
りに高速回転させ、次の第２位置でアンプルの
回転を停止させ（但し、アンプル内容液は慣性で
回転を続けている。）、さらに、第３位置でアン
プルａを投光器１０で照らし乍らテレビジヨンカ
メラ１１でアンプルの良品、不良品を一定の感度
（アンプル内容液中に含む異物を検出して良品と
不良品を一定のレベルで識別する。）で検査をす
る。同様にして、第４、第５、第６の各検査位置
、、においても、アンプルを回転させての
ち停止した状態で投光器で照らして夫々のテレビ
ジヨンカメラでアンプルの良品、不良品を検査す
る。検査ドラム８のアンプルａは、反時計方向に
回転する取出しスターホイル１２の搬送ポケツト
１２ａへ送られ、上記カメラ１１の検査結果に基
づき制御回路１３を介して作動する再検査振分バ
ルブ１４によつて再検査すべきアンプルは再検査
スターホイル１５の搬送ポケツト１５ａへ送り出
される一方、上記カメラ１１の検査結果に基づき
制御回路１３を介して作動する不良品振分バルブ
１６によつて不良品のアンプルは不良品スターホ
イル１７の搬送ポケツト１７ａへ送り出され、良
品のアンプルのみが取出しスターホイル１２から
次工程送りスターホイル１８の搬送ポケツト１８
ａへ送り出される。再検査すべきアンプルは再検
査スターホイル１５から回帰回路を構成する中間
送戻スターホイル１９の搬送ポケツト１９ａを経
て上記仕込スターホイール６の搬送ポケツト６ａ
へ送り戻されて、上記の如き検査ドラム８での検
査を今一度繰り返えす。不良品のアンプルは不良
品スターホイール１７から案内ガイド２０を経て
不良品箱２１へ投入される。
上記の如きアンプルの検査装置で、検査ドラム
８及び全スターホイール６，７，１２，１５，１
７，１８，１９は上記の如くアンプルが順次搬送
されるように図示しない駆動装置で同期して駆動
される。また、検査ドラム８の外側の第３、第
４、第５、第６の各位置，，，に設けた
カメラ１１は、全て制御回路１３に接続され、か
つ該制御回路１３の出力で夫々作動される電磁作
動手段２２，２３を介して再検査振分バルブ１４
および不良品振分バルブ１６が作動する。各振分
バルブ１４，１６は、閉作動時には例えばバキユ
ーム作用でアンプルを取出スターホイール１２の
搬送ポケツト１２ａ内に滞在せしめる一方、開作
動時には例えば圧力エアーの作用でアンプルを取
出スターホイール１２の搬送ポケツト１２ａ内よ
り外側へ放り出して再検査スターホイール１５の
搬送ポケツト１５ａまたは不良品スターホイール
１７の搬送ポケツト１７ａへ送り込むようにす
る。上記制御回路１３はカウンター等の論理回路
よりなり、上記全カメラ１１より夫々良品、不良
品の判別信号を入力する一方、良品、不良品、再
検査品の判定信号を出力して後述するように、第
８図に示すフローチヤートの如き作用を行う。
第２図に示す如く、検査ドラム８は、固定軸２
５のまわりをで一体的に回転される上下一対の円
板２６，２７と、上円板２６に対応する固定板２
８，２８′と、下円板２７に設けた回転自在な下
ホルダー９ａと、上円板２６に設けた回転自在に
して上下摺動自在な上ホルダー９ｂと、固定板２
８に設けた上ホルダー９ｂの上下位置を制御する
カム板２９とを備えて、第３図に示す如く供給ス
ターホイール７から検査ドラム８へ送り込まれて
くるアンプルａを上下のホルダー９ａ，９ｂで保
持する一方、検査ドラム８から取出しスターホイ
ール１２へアンプルを送り出す時にはアンプルを
上下ホルダー９ａ，９ｂより解放するようにす
る。第４図に示す如く、アンプルａを上下ホルダ
ー９ａ，９ｂより解放する時は、カム板２９に設
けた段部３０により上ホルダー９ｂを上下動させ
てアンプルが上ホルダー９ｂより確実に離れるよ
うにする。第５図に示す如く、アンプルが検査ド
ラム８の上下ホルダーに保持されて第１位置に
来た時は、高速回転ベルト用プーリ３１でその軸
芯の回りに下ホルダー９ａを高速回転させて、ア
ンプルａを一体に高速回転させている。次の第２
位置ではアンプルは、第６図に示す如く摩擦ブ
レーキ３２で下ホルダー９ａの回転を停止させる
ことにより回転が停止されて、アンプル内容液の
みが慣性で回転している状態で、順次第３、第
４、第５、第６の検査位置，，，へ送ら
れる。第７図に示す如く各検査位置でアンプルａ
は駆動プーリ３３で常にその前面がカメラ１１の
方へ向くように回転され乍ら、ランプ１０で照明
されてカメラ１１でその静止画像がとらえられ
る。アンプルの内容液の中に異物がある場合には
その画像がカメラで移動している異物としてとら
えられて、良品または不良品の判別がなされる。
各カメラ１１は、一定の高感度でアンプル内容液
の異物を検出して一定の判別レベルで各アンプル
の合否を判別する。またアンプル内容液の異物は
内容液と共に回転して位置が変るので、異物の検
出の精度を上げるために、各カメラ１１は検査ド
ラム８の外側の異る検査位置，，，に配
置されている。全各カメラ１１のアンプル合否の
判別結果が入力される制御回路１３は、第１特定
数以上のカメラ、たとえば４台以上のカメラから
アンプル合格の判別信号を受けると、当該アンプ
ルを良品として判定する良品信号出力手段と、第
２特定数以上のカメラ、たとえば４台以上のカメ
ラからアンプル不合格の判別信号を受けると当該
アンプルを不良品として判定する不良品信号出力
手段と、上記第１特定数以下のカメラでアンプル
合格の判別信号を受けると共に上記第２特定数未
満のカメラでアンプル不合格の判別信号を受ける
と、たとえば３台，２台，または１台のカメラか
ら合格信号を受け、残りのカメラから不合格信号
を受けると、当該アンプルを検査不明確の再検査
品として判定する再検査信号出力手段を備え、上
記不良品信号出力手段の出力で電磁作動手段２３
を介して不良品振分バルブ１６を作動し、該当す
るアンプルを取出スターホイール１２から不良品
振分スターホイール１７へ取り出すようにする一
方、上記再検査信号出力手段の出力で電磁作動手
段２２を介して再検査振分バルブ１４を作動し、
該当するアンプルを取出スターホイール１２から
再検査振分スターホイール１５へ取り出すように
する。したがつて、良品のアンプルは取出スター
ホイール１２から次工程スターホイール１８へ取
り出されると共に不良品のアンプルは不良品振分
スターホイール１７から案内ガイド２０を経て不
良品箱２１に取り出される一方、残りの再検査品
のアンプルは再検査振分スターホイール１５から
中間送戻スターホイール１９を介して送り出しス
ターホイール６へ送り戻されて、今一度供給スタ
ーホイール７を経て検査ドラム８へ送り込まれる
ようになる。したがつて、第８図に示す如く、仕
込台３の全検査すべきアンプルは、検査ドラム８
の第１回の検査で、良品と不良品及び不明の再検
査品と区分けされ、再検査品のみが今一度検査ド
ラム８の第２回の検査を受けて、再び良品と不良
品及び不明の再検査品と区分けされ、この再検査
品のみが次の第３回の検査を受けて、さらにその
不明の再検査品がさらに次の第４回の検査をと、
順次何回も検査を繰り返えすことになる。再検査
品が検査ドラム８で再検査を受ける時には、同時
に仕込台３から新らたに始めて検査を受けるアン
プルが検査ドラム８へ連続して送り込まれてお
り、したがつて多量のアンプルの検査が連続して
行われることになる。このように再検査品のアン
プルが、検査ドラム８で再検査を受ける毎に、良
品のアンプルと不良品のアンプルが取り出され
て、最後には再検査品のアンプルがなくなるよう
になる。
今、上記の如く、４台のカメラ１１を用い夫々
のカメラの合否の判別信号によつてアンプルの
良、不良を判定する方法は、例えば第９図には、
次の７種類が示されている。（実際には16種類が
考えられる。）なお、第９図で、横軸は１台のカ
メラでの検知率（％）を示し、縦軸は４台のカメ
ラでの総合検知率（％）を示す。第９図におい
て、各曲線K1，K2，K3，K4，S2，S3，S4は次の
ような場合である。
K1……４台のカメラの中で、１台のカメラでも
アンプルが不合格であると検知すると、当該ア
ンプルを不良品と判定する一方、他のアンプル
を全て良品と判定した場合の総合検知率を示
す。
K2……４台のカメラの中で、２台以上のカメラ
がアンプルを不合格であると検知した場合は、
当該アンプルを不良品と判定する一方、他のア
ンプルを全て良品と判定した場合の総合検知率
を示す。
K3……４台のカメラの中で、３台以上のカメラ
がアンプルを不合格であると検知した場合は、
当該アンプルを不良品と判定する一方、他のア
ンプルを全て良品と判定した場合の総合検知率
を示す。
K4……４台のカメラ全部がアンプルを不合格で
あると検知した場合は、当該アンプルを不良品
と判定する一方、他のアンプルを全て良品と判
定した場合の総合検知率を示す。
S2……４台のカメラの中で、４台のカメラ全部が
アンプルを合格であると検知した場合は当該ア
ンプルを良品と判定する一方、２台以上のカメ
ラがアンプルを不合格であると検知した場合は
当該アンプルを不良品と判定し、かつ１台のカ
メラのみがアンプルを不合格であると検知した
場合には、当該アンプルを再検査品と判定した
場合の総合検知率を示す。
S3……４台のカメラの中で、４台のカメラ全部が
アンプルを合格であると検知した場合は当該ア
ンプルを良品と判定する一方、３台以上のカメ
ラがアンプルを不合格であると検知した場合は
当該アンプルを不良品と判定し、かつ１台また
は２台のカメラがアンプルを不合格とした場合
には、当該アンプルを再検査品と判定した場合
の総合検知率を示す。
S4……４台のカメラの中で、４台のカメラ全部が
アンプルを合格であると検知した場合は当該ア
ンプルを良品と判定する一方、４台のカメラ全
部が不合格であると検知した場合は当該アンプ
ルを不良品と判定し、かつ１台，２台または３
台のカメラがアンプルを不合格とした場合に
は、当該アンプルを再検査品と判定した場合の
総合検知率を示す。
第９図の線図で、Ｋ系は合格、不合格の判定の
みで再検査の判定がない場合であり、Ｓ系は合
格、不合格の判定に加えて再検査の判定をも行う
ようにしたものであるが、K2とS2，K3とS3，K4
とS4を夫々比較して明らかな如く、Ｓ系の方がＫ
系に比して検知率の上昇が見られ、同時に曲線の
立ち上りが急である誤検知が少いことが分る。た
とえば、S4はK4に比して、検知率が１段と向上
しており、K2やK3と比較してもS4の曲線の立上
りが急であることが分る。例えば、第９図では、
１台のカメラで、その検知率が50％の所を境にし
て、50％以上を良品のアンプルとし、50％以下を
不良品のアンプルとして判別しており、第９図で
縦線50％の判別線の左側が良品、判別線の右側が
不良品と判別される。したがつて、S4で見ると、
S4と判別線の間に囲まれる領域が誤検知したこと
になる。いいかえると、判別線として50％以下で
S4との間で囲まれる領域が良品であるべきものを
不良品と誤検知したものであり、判別線の50％以
上でS4との間で囲まれる領域が不良品と良品と誤
検知したものである。このようにして、判別線を
基準にして夫々の曲線の誤検知の領域をみると、
K2，K3，K4は誤検知の領域がS4に比べて大きい
ことが分る。
したがつて、S4の如き再検査の判定を加えるこ
とによつて、曲線が立ち上り、判別線との間の誤
検査の両域が小さくなり、その検査の精度が上
り、検査結果の良好な高品質のアンプルを得るこ
とができるものである。
第９図に示すS4の曲線を用いて、第８図に示す
如く再検査を繰り返す場合を、実際に、一つの実
例で説明する。
今例えば、一台のカメラで検査して10％の確率
で検出される気泡を持つアンプルを100本用意し、
これらを本発明の如き、四台のカメラでS4の検
査、再検査を繰り返して、どの位の数のアンプル
が良品として判定されるかどうかをみる一方、一
台のカメラで検査して80％の確率で検出される異
物を持つアンプルを100本用意し、これらを本発
明の如き、四台のカメラでS4の検査、再検査を繰
り返してどの位の数のアンプルが不良品として判
定されるのかどうかをみると、各数回の実例の結
果、次の如くなつた。
The present invention is an ampoule inspection device, and more specifically, images of an ampoule, vial, or other object to be inspected filled with a liquid content are captured by inspection means such as a plurality of television cameras, and the presence of foreign substances contained in the liquid content is confirmed. The present invention relates to an inspection device configured to do the following. Since foreign objects such as glass shards may accidentally get mixed into the liquid content of ampoules and vials, conventional inspection equipment that swirls the liquid content and uses a television camera to capture the foreign objects contained therein has been specially developed. It has been proposed in Publication No. 52-19798, Special Publication No. 47914/1977, etc. However, the cameras installed in these inspection devices were only capable of detecting foreign substances with a certain sensitivity and distinguishing between good and defective ampoules. is requested and increases the sensitivity of the camera,
It was not possible to detect minute air bubbles generated as the content liquid swirled, and to distinguish between foreign objects and air bubbles. The drawback was that the recovery rate of ampules was extremely low, resulting in poor productivity. In order to eliminate the drawbacks of the conventional example, the present invention includes a plurality of cameras as ampoule inspection means,
At the same time as increasing the foreign object detection sensitivity of each camera, the detection results of all cameras are combined and ampoules are classified into good products, defective products, and re-inspected products based on a certain standard. By having the ampoules inspected, the recovery rate of good ampoules is improved. That is, the ampoule inspection device according to the present invention includes a conveyance means for conveying the ampoule from an input position to an unloading position via at least one inspection position, and inspects the ampoule at each of the inspection positions to determine whether it is good or defective. If a plurality of inspection means determine the quality of the product, and a first specified number or more of the inspection means determine the product to be non-defective, the product is determined to be non-defective, and if a second specific number or less of the inspection means determine the product to be non-defective, the product is determined to be defective. a determining means that determines the product to be re-inspected when the inspection means determines that the product is non-defective when the number is less than one specific number and exceeds a second specific number, and the ampoule determined to be the product to be re-inspected based on the output of the determining device is transferred from the take-out position to the input position or to the inspection position. The ampoule is characterized in that it is equipped with a return means for returning the ampoule to repeated re-inspections. Hereinafter, the present invention will be described in detail with reference to embodiments shown in the drawings. In the ampoule inspection apparatus shown in FIG.
sent to. The ampoules a are delivered one by one by the delivery belt conveyor 4 to the transport pocket 6a of the charging star wheel 6, which rotates clockwise, with the help of the bridge breaker belts 5 on both sides. The ampoules a of the preparation star foil 6 are sequentially supplied to the holder 9 of the inspection drum 8 through the conveyance pocket 7a of the supply star foil 7 which rotates counterclockwise. The inspection drum 8, which rotates clockwise, holds the bottom and shoulders of the ampoule a with a pair of upper and lower holders 9a and 9b, and rotates the ampoule around its axis at a first position. The ampoule is rotated at high speed, and the rotation of the ampoule is stopped at the next second position (however, the liquid in the ampoule continues to rotate due to inertia), and then, at the third position, the ampoule a is illuminated with the projector 10 and the television is turned on. The camera 11 inspects the ampules to determine whether they are good or defective at a certain level of sensitivity (detects foreign matter contained in the ampoule content and distinguishes between good and defective products at a certain level). Similarly, at each of the fourth, fifth, and sixth inspection positions, the ampoules are rotated, then stopped, and illuminated with a floodlight, and each television camera is used to inspect the ampoules for good or defective products. . The ampoule a of the inspection drum 8 is sent to the transport pocket 12a of the take-out star wheel 12 which rotates counterclockwise, and is then sent to the re-inspection distribution valve 14 which is operated via the control circuit 13 based on the inspection result of the camera 11. Ampules to be re-inspected are sent to the transport pocket 15a of the re-inspection star wheel 15, while defective ampoules are sorted out by the defective product sorting valve 16 which is operated via the control circuit 13 based on the inspection result of the camera 11. Ampules are sent to the transport pocket 17a of the defective star foil 17, and only good ampoules are taken out and transferred from the star foil 12 to the transport pocket 18 of the star foil 18 for the next process.
sent to a. Ampules to be retested are transported from the retest star wheel 15 to the transport pocket 6a of the preparation star wheel 6 via the transport pocket 19a of the intermediate return star wheel 19 constituting the return circuit.
The test drum 8 is sent back to the test drum 8, and the above-described test using the test drum 8 is repeated once again. Defective ampoules are thrown into a defective product box 21 from a defective product star wheel 17 via a guide 20. In the ampoule inspection device as described above, the inspection drum 8 and all star wheels 6, 7, 12, 15, 1
7, 18, and 19 are driven synchronously by a drive device (not shown) so that the ampoules are conveyed sequentially as described above. Further, the cameras 11 provided at the third, fourth, fifth, sixth positions, etc. outside the inspection drum 8 are all connected to the control circuit 13, and are respectively operated by the output of the control circuit 13. re-inspection distribution valve 14 via electromagnetic actuating means 22, 23
And the defective product sorting valve 16 is activated. When the distribution valves 14 and 16 are closed, the ampules are taken out by vacuum action, for example, and are kept in the transport pocket 12a of the star wheel 12, while when they are opened, the ampules are taken out by the action of pressurized air, and the ampules are taken out and transferred to the transport pocket of the star wheel 12. The product is thrown out from inside 12a and sent to the transport pocket 15a of the re-inspection star wheel 15 or the transport pocket 17a of the defective star wheel 17. The control circuit 13 is composed of a logic circuit such as a counter, and inputs signals for determining good products and defective products from all the cameras 11, and outputs judgment signals for non-defective products, defective products, and re-inspected products, as will be described later. , performs an action as shown in the flowchart shown in FIG. As shown in FIG. 2, the inspection drum 8 has a fixed shaft 2.
A pair of upper and lower discs 26, 27 that are integrally rotated around the upper disc 26, and a fixed plate 2 that corresponds to the upper disc 26.
8, 28', a rotatable lower holder 9a provided on the lower disk 27, a rotatable and vertically slidable upper holder 9b provided on the upper disk 26, and a fixed plate 2.
As shown in FIG. On the other hand, when the ampoule is taken out from the inspection drum 8 and delivered to the star wheel 12, the ampoule is released from the upper and lower holders 9a and 9b. As shown in FIG. 4, when releasing the ampoule a from the upper and lower holders 9a and 9b, the upper holder 9b is moved up and down by the stepped portion 30 provided on the cam plate 29 to ensure that the ampoule is separated from the upper holder 9b. do. As shown in FIG. 5, when the ampoule is held by the upper and lower holders of the inspection drum 8 and reaches the first position, the lower holder 9a is rotated at high speed around its axis by the high-speed rotating belt pulley 31. Ampoule a is rotated together at high speed. next second
At this position, the rotation of the ampoule is stopped by stopping the rotation of the lower holder 9a with the friction brake 32 as shown in FIG. 4, fifth, and sixth inspection positions, . Ampoule a at each inspection position as shown in Figure 7.
is rotated by a driving pulley 33 so that its front face always faces toward the camera 11, and is illuminated by a lamp 10 so that a still image thereof can be captured by the camera 11. If there is a foreign object in the liquid content of the ampoule, an image of the foreign object is captured by a camera, and a determination is made as to whether the ampoule is good or defective.
Each camera 11 detects foreign matter in the liquid contained in the ampoule with a certain high sensitivity and determines whether each ampoule is acceptable or not at a certain discrimination level. Furthermore, since the foreign matter in the ampoule content rotates with the content and changes its position, each camera 11 is placed at a different inspection position outside the inspection drum 8 in order to increase the accuracy of foreign matter detection. . When the control circuit 13 to which the ampoule pass/fail determination results of all the cameras 11 is input receives the ampoule pass determination signal from a first specific number or more cameras, for example, four or more cameras, the control circuit 13 determines that the ampoule is a non-defective product. a non-defective product signal output means, a defective product signal output means for determining the ampoule as a defective product when receiving a determination signal indicating that the ampoule is rejected from a second specific number or more cameras, for example, four or more cameras; If the following cameras receive a determination signal indicating that the ampoule has passed, and a number of cameras that are less than the second specified number receive a determination signal indicating that the ampoule has failed, for example, a pass signal is received from 3, 2, or 1 camera, and the remaining Re-inspection signal output means is provided for determining the ampoule as a re-inspection product whose inspection is unclear when a rejection signal is received from the camera, and the electromagnetic activation means 23 is activated by the output of the defective product signal output means.
The defective product sorting valve 16 is actuated to take out the corresponding ampoule from the extraction star wheel 12 to the defective product sorting star wheel 17, while the electromagnetic actuating means 22 is actuated by the output of the re-inspection signal output means. actuating the re-inspection distribution valve 14 through the
The corresponding ampoule is taken out from the take-out star wheel 12 to the re-inspection distribution star wheel 15. Therefore, good ampoules are taken out from the extraction star wheel 12 to the next process star wheel 18, and defective ampoules are taken out from the defective product sorting star wheel 17 via the guide 20 to the defective product box 21, while the remaining Ampules of re-inspected products are sent from the re-inspection sorting star wheel 15 via the intermediate return star wheel 19 to the sending star wheel 6, and then sent through the supply star wheel 7 again to the inspection drum 8. Become. Therefore, as shown in FIG.
In the first inspection, the products are divided into non-defective products, defective products, and unknown re-inspected products. It is separated from re-inspected products, and only this re-inspected product undergoes the next third inspection, and the unknown re-inspected products undergo the next fourth inspection.
The test will have to be repeated several times in sequence. When re-inspected products are re-inspected in the inspection drum 8, ampoules to be inspected for the first time are simultaneously fed into the inspection drum 8 from the preparation table 3, and therefore a large number of ampoules are inspected. It will be done continuously. In this way, every time the ampoules of re-inspected products are re-inspected on the inspection drum 8, good ampoules and defective ampoules are taken out, and finally there are no ampoules of re-inspected products. Now, as described above, the method of determining whether an ampoule is good or bad using the four cameras 11 and the pass/fail judgment signals of each camera is shown in FIG. 9, for example.
The following seven types are shown. (Actually, 16 types are possible.) In Figure 9, the horizontal axis shows the detection rate (%) with one camera, and the vertical axis shows the total detection rate (%) with four cameras. shows. In FIG. 9, the curves K 1 , K 2 , K 3 , K 4 , S 2 , S 3 and S 4 are as follows. K 1 ...If even one of the four cameras detects that an ampoule is rejected, that ampoule is determined to be defective, while comprehensive detection is performed when all other ampoules are determined to be non-defective. Show rate. K 2 ...If two or more of the four cameras detect the ampoule as rejected,
The figure shows the overall detection rate when the ampoule is determined to be defective while all other ampoules are determined to be non-defective. K 3 ...If three or more of the four cameras detect the ampoule as rejected,
The figure shows the overall detection rate when the ampoule is determined to be defective while all other ampoules are determined to be non-defective. K 4 ...Indicates the overall detection rate when all four cameras detect that an ampoule is rejected, and the ampoule is determined to be defective, while all other ampoules are determined to be non-defective. S 2 ...Among the four cameras, if all four cameras detect the ampoule as passing, the ampoule is determined to be good, while two or more cameras detect the ampoule as failing. If detected, the ampoule is determined to be a defective product, and if only one camera detects the ampoule to be rejected, the ampoule is determined to be a re-inspected product.The overall detection rate is shown. S 3 ...Among the four cameras, if all four cameras detect the ampoule as passing, the ampoule is determined to be a good product, while three or more cameras detect the ampoule as being rejected. If detected, the ampoule is determined to be a defective product, and if one or two cameras reject the ampoule, the ampoule is determined to be a re-inspected product.The overall detection rate is shown. S 4 ...If all four cameras detect the ampoule as passing, the ampoule is determined to be good, while all four cameras detect it as failing. If so, the ampoule is determined to be defective, and 1, 2, or 3
If the ampoule is rejected by the camera on the stand, the overall detection rate is shown if the ampoule is determined to be a re-inspected item. In the diagram in Figure 9, the K system only makes pass/fail judgments and there is no re-inspection judgment, while the S system makes re-inspection judgments in addition to pass/fail judgments. However, K 2 and S 2 , K 3 and S 3 , K 4
As is clear from comparing the and S 4 , the S series has a higher K
It can be seen that the detection rate has increased compared to the system, and at the same time there are fewer false positives due to the steep rise of the curve. For example, it can be seen that the detection rate of S 4 is one step higher than that of K 4 , and the rise of the curve of S 4 is steeper than that of K 2 and K 3 . For example, in Figure 9,
With a single camera, when the detection rate is 50%, ampoules of 50% or higher are determined to be good, and ampoules of 50% or lower are determined to be defective. In Figure 9, the vertical line 50% The left side of the discrimination line is judged as a good product, and the right side of the discrimination line is judged as a defective product. Therefore, when looking at S 4 ,
This means that the area surrounded by S 4 and the discrimination line is erroneously detected. In other words, the discrimination line is 50% or less.
The area surrounded by S 4 was incorrectly detected as a defective item when it should be a good item, and the area surrounded by S 4 at 50% or more of the discrimination line was incorrectly detected as a defective item and a non-defective item. This is what I did. In this way, if we look at the areas of false detection for each curve based on the discrimination line, we get
It can be seen that K 2 , K 3 , and K 4 have a larger false positive area than S 4 . Therefore, by adding a retest judgment like S4 , the curve rises and the area of erroneous test between it and the discrimination line becomes smaller, improving the accuracy of the test and improving the test results. It is possible to obtain high quality ampoules. A case in which re-examination is repeated as shown in FIG. 8 using the S 4 curve shown in FIG. 9 will be explained using an example. For example, if you prepare 100 ampoules with air bubbles that can be detected with a 10% probability when inspected with a single camera,
By repeating S4 inspection and re-inspection using four cameras to see how many ampoules are judged to be good, as in the present invention, we inspected them using one camera and tested 80 ampoules. Prepare 100 ampoules that have a foreign substance that can be detected with a probability of 100%, repeat the S4 inspection and re-inspection using four cameras as in the present invention, and determine how many ampoules are defective. When I looked at whether it would work or not, I found the results as follows after several examples of each case.
【表】
上記の如く５回の検査を繰り返すことによつ
て、良品は99.50（％）、不良品は0.01（％）となつ
た。
また、多数の良品のアンプルの中に80％の異物
を内容液に持つアンプルを100本混入させて上記
S4の検査を繰り返すと次の如くなつた。[Table] By repeating the inspection five times as described above, the number of non-defective products was 99.50 (%) and the number of defective products was 0.01 (%). In addition, 100 ampoules with 80% foreign matter in the liquid were mixed into a large number of good ampoules.
After repeating the S4 test, the results were as follows.
【表】
上記の如く９回の検査を繰り返すことによつ
て、良品が0.36％、不良品は98.79％となつた。
したがつて、上記の２例共に良品の回収率が良
くなると同時に不良品の見逃しが少くなつて、高
感度の検査を通つた高品質のアンプルを得ること
ができるものである。[Table] By repeating the inspection nine times as described above, the percentage of non-defective products was 0.36%, and the percentage of defective products was 98.79%. Therefore, in both of the above examples, the recovery rate of non-defective products is improved, and at the same time, fewer defective products are overlooked, making it possible to obtain high-quality ampoules that have passed highly sensitive inspection.
第１図は本発明にかかるアンプル検査装置の平
面図、第２図は第１図の一部の縦断面図、第３図
は第２図の一部の斜視図、第４図は第３図の一部
の側面図、第５図は第１図の一部の拡大平面図、
第６図は第５図のＡ−Ａ線における断面図、第７
図は第５図のＢ−Ｂ線における断面図、第８図は
検査回数の説明図、第９図は検知率の説明図であ
る。
８……検査ドラム、１１……カメラ、１２……
取出しスターホイル、１３……制御回路、１４…
…再検査振分バルブ、１５……再検査スターホイ
ル。
FIG. 1 is a plan view of an ampoule inspection device according to the present invention, FIG. 2 is a vertical sectional view of a part of FIG. 1, FIG. 3 is a perspective view of a part of FIG. 2, and FIG. A side view of a part of the figure, Figure 5 is an enlarged plan view of a part of Figure 1,
Figure 6 is a sectional view taken along line A-A in Figure 5;
The figures are a sectional view taken along the line B-B in FIG. 5, FIG. 8 is an explanatory diagram of the number of inspections, and FIG. 9 is an explanatory diagram of the detection rate. 8...Inspection drum, 11...Camera, 12...
Take-out star foil, 13... Control circuit, 14...
...Re-inspection distribution valve, 15...Re-inspection star foil.
Claims (1)
の検査位置を経て取出位置へ搬送する搬送手段
と、上記検査位置で夫々アンプルを検査して良品
と不良品に判別する複数個の検査手段と、第１特
定数以上の検査手段が良品と判別すると良品と判
定し、かつ第２特定数以下の検査手段が良品と判
別すると不良品と判定し、さらに第１特定数未満
で第２特定数こえる検査手段が良品と判断すると
再検査品と判定する判定手段と、該判定手段の出
力で再検査品と判定したアンプルを取出位置から
投入位置または検査位置へ戻す回帰手段を備え
て、アンプルの再検査を繰り返し行うようにした
ことを特徴とするアンプルの検査装置。1. A conveying means for conveying the ampoule from an input position to an unloading position via at least one inspection position; a plurality of inspection means for respectively inspecting the ampoule at the inspection position to determine whether it is a good product or a defective product; A product is determined to be non-defective when one or more specific number of inspection means determines it to be non-defective, and a product is determined to be defective if less than or equal to a second specific number of inspection means determine the product to be non-defective, and further inspection is performed when less than the first specific number exceeds a second specific number. The ampoule is re-inspected, comprising a determining means for determining the product to be re-inspected when the means determines that the product is good, and a return means for returning the ampoule determined to be a re-inspected product from the take-out position to the input position or the inspection position based on the output of the determination means. An ampoule inspection device characterized in that the ampoule inspection device repeatedly performs the following steps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58058502A JPS59183351A (en) | 1983-04-01 | 1983-04-01 | Ampule examining apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58058502A JPS59183351A (en) | 1983-04-01 | 1983-04-01 | Ampule examining apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59183351A JPS59183351A (en) | 1984-10-18 |
| JPH0317089B2 true JPH0317089B2 (en) | 1991-03-07 |
Family
ID=13086189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58058502A Granted JPS59183351A (en) | 1983-04-01 | 1983-04-01 | Ampule examining apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59183351A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008510971A (en) * | 2004-08-27 | 2008-04-10 | メラー・アンド・デヴィコン・アクティーゼルスカブ | Method and apparatus for detecting foreign matter or defects in a plurality of injected containers |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4912318A (en) * | 1987-08-04 | 1990-03-27 | Kanebo Ltd. | Inspection equipment for small bottles |
| JPH04309851A (en) * | 1991-04-05 | 1992-11-02 | Hitachi Ltd | External appearance/foreign matter composite type inspecting device |
| JP3212378B2 (en) * | 1992-08-29 | 2001-09-25 | 株式会社キリンテクノシステム | Container inspection device |
| EP1371041A4 (en) * | 2001-02-02 | 2006-04-19 | Bristol Myers Squibb Pharma Co | Apparatus and methods for on-line monitoring of fluorinated material in headspace of vial |
| JP5894829B2 (en) * | 2012-03-23 | 2016-03-30 | 富士電機株式会社 | Foam removing apparatus, foreign object inspection apparatus including the same, and foam removing method |
| JP6116098B2 (en) * | 2013-12-25 | 2017-04-19 | 株式会社 日立産業制御ソリューションズ | Inspection device |
| JP2020024121A (en) * | 2018-08-06 | 2020-02-13 | 澁谷工業株式会社 | Article inspection device |
-
1983
- 1983-04-01 JP JP58058502A patent/JPS59183351A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008510971A (en) * | 2004-08-27 | 2008-04-10 | メラー・アンド・デヴィコン・アクティーゼルスカブ | Method and apparatus for detecting foreign matter or defects in a plurality of injected containers |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59183351A (en) | 1984-10-18 |
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