JPH05281079A - Inspection method of sealing part of fluide container and inspection apparatus - Google Patents
Inspection method of sealing part of fluide container and inspection apparatusInfo
- Publication number
- JPH05281079A JPH05281079A JP11224792A JP11224792A JPH05281079A JP H05281079 A JPH05281079 A JP H05281079A JP 11224792 A JP11224792 A JP 11224792A JP 11224792 A JP11224792 A JP 11224792A JP H05281079 A JPH05281079 A JP H05281079A
- Authority
- JP
- Japan
- Prior art keywords
- seal portion
- container
- fluid
- seal
- pressing
- 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.)
- Pending
Links
Landscapes
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、可撓材製の流動物容器
の内面同志を接着することで形成したシール部の良否を
検査する方法および装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for inspecting the quality of a seal portion formed by adhering inner surfaces of a fluid container made of a flexible material.
【０００２】[0002]
【従来の技術と発明が解決しようとする課題】例えば歯
磨剤やペースト状食品といった流動物を充填するため、
チューブやフレキシブルパウチといった可撓材製の容器
が用いられている。これら容器の端部は内面同志が接着
されることでシール部とされ、流動物を洩れないように
封入している。2. Description of the Related Art For filling a fluid such as a dentifrice or a pasty food,
Containers made of flexible materials such as tubes and flexible pouches are used. The ends of these containers are sealed by adhering their inner surfaces to each other to seal the fluid so as not to leak.
【０００３】しかし、シール部の内面に内容物や水分が
付着したような場合、その内面同志を完全に接着するこ
とができずシール不良を生じることがある。そのような
シール不良を検査するため、容器を手で押し付けた後に
流動物の洩れの有無を目視確認することが行なわれてい
たが、検査を自動化できないため時間を要し大量生産に
対応できない。However, if contents or moisture adheres to the inner surface of the seal portion, the inner surfaces cannot be completely adhered to each other, and a sealing failure may occur. In order to inspect such a seal defect, it has been performed to visually check the presence or absence of leakage of a fluid after pressing the container by hand, but it is not possible to automate the inspection and it is not possible to cope with mass production.
【０００４】また、容器を押し付けて洩れた流動物をガ
ラス面に付着させ、そのガラス面を透過する光の光量変
化によりシール部の良否を判定することが行なわれてい
るが、検査設備が複雑になり、また、流動物の洩れが微
量であったり流動物の洩れがない程度のシール不良を検
出することはできない。Further, it has been attempted to press a container to cause a leaked fluid to adhere to a glass surface and to judge the quality of a seal portion by a change in the amount of light passing through the glass surface, but the inspection equipment is complicated. In addition, it is impossible to detect a seal defect such that the leakage of the fluid is very small or there is no leakage of the fluid.
【０００５】また、容器を押し付けて空中に洩れてきた
流動物を撮像して画像処理することでシール部の良否を
判定することも行なわれているが、流動物の洩れがない
程度のシール不良を検知することはできない。It is also known that the quality of the seal portion is judged by pressing the container and imaging the fluid that has leaked into the air and performing image processing. However, the sealing failure is such that there is no fluid leakage. Can not be detected.
【０００６】また、容器を押し付けた後に、その押し付
け箇所における容器の厚さあるいは押し付け圧力を測定
し、その測定値を予め定めた値と比較することでシール
不良を検出することも行なわれているが、容器への流動
物の入目精度に検出精度が影響されるため、正確な検出
はできない。Further, after pressing the container, the thickness or pressing pressure of the container at the pressing position is measured, and the measured value is compared with a predetermined value to detect a seal defect. However, accurate detection cannot be performed because the detection accuracy is affected by the accuracy of the fluid entering the container.
【０００７】また、特開昭６２‐２７６４４４号公報
に、容器のシール部を透過する光の光量変化により、シ
ール不良部分を検知することが開示されているが、容器
あるいは流動物が光を透過しない場合は検知不能であ
り、また、容器を押し付ける機構がないためシール部の
内面同志が見掛け上は接着している疑似接着を検出する
ことはできない。Further, Japanese Patent Laid-Open No. 62-276444 discloses that a defective sealing portion is detected by a change in the amount of light transmitted through the sealing portion of the container. If not, it cannot be detected, and since there is no mechanism for pressing the container, it is impossible to detect the pseudo-bonding in which the inner surfaces of the seal portion are apparently bonded.
【０００８】本発明は上記従来技術の問題を解決するこ
とのできる流動物容器におけるシール部の検査方法およ
び検査装置を提供することを目的とする。An object of the present invention is to provide an inspection method and an inspection device for a seal portion in a fluid container which can solve the above-mentioned problems of the prior art.
【０００９】[0009]
【課題を解決するための手段】本発明方法の特徴とする
ところは、可撓材製の流動物容器の内面同志を接着する
ことで形成したシール部の検査方法であって、その容器
を押し付けた後にシール部の厚さ方向に現れる寸法を測
定し、その測定値をシール部の接着の良否に基づいて予
め定めた基準値と比較し、その比較結果に基づいてシー
ル部の良否を判定する点にある。A feature of the method of the present invention is a method of inspecting a seal portion formed by adhering inner surfaces of a fluid container made of a flexible material to each other, and pressing the container. After that, measure the dimension appearing in the thickness direction of the seal part, compare the measured value with a predetermined reference value based on the quality of adhesion of the seal part, and judge the quality of the seal part based on the comparison result. There is a point.
【００１０】本発明装置の特徴とするところは、可撓材
製の流動物容器の内面同志を接着することで形成したシ
ール部の検査装置であって、その容器を押し付ける手段
と、そのシール部の厚さ方向に現れる寸法を測定する手
段と、シール部の接着の良否に基づいて予め定めた基準
値を記憶する記憶手段と、その測定値と基準値とを比較
してシール部の良否を判定する手段とを備える点にあ
る。A feature of the device of the present invention is an inspection device for a seal portion formed by adhering inner surfaces of a fluid container made of a flexible material to each other, and means for pressing the container and the seal portion. Means for measuring the dimension appearing in the thickness direction, a storage means for storing a predetermined reference value based on the quality of adhesion of the seal portion, and the quality value of the seal portion by comparing the measured value with the reference value. And a means for determining.
【００１１】[0011]
【作用】シール部の内面同志が接着せず流動物が容器の
外部に洩れている場合、その洩れが生じている部分での
シール部の厚さ方向に現れる寸法は内面同志が良好に接
着している場合に比べ大きくなる。また、流動物が容器
の外部に洩れてはいないが、本来接着されるべきシール
部の内面同志が部分的に接着されず離反している場合、
その接着されていない部分のシール部の厚さ方向に現れ
る寸法は内面同志が接着している場合に比べ大きくな
る。また、シール部の内面同志が見掛け上は接着してい
るが、実際は全く接着されずあるいは容易に剥離するよ
うな場合、容器を押し付けると流動物はその見掛け上接
着している部分に入り込むため、その流動物が入り込ん
だ部分でのシール部の厚さ方向に現れる寸法は内面同志
が接着している場合に比べ大きくなる。[Function] If the inner surfaces of the seals do not adhere to each other and the fluid leaks to the outside of the container, the dimensions appearing in the thickness direction of the seals at the parts where the leakage occurs are such that the inner surfaces adhere well. It becomes larger than the case. Also, if the fluid does not leak to the outside of the container, but the inner surfaces of the seal part that should be originally bonded are not partially bonded and are separated,
The dimension of the non-bonded portion in the thickness direction of the seal portion is larger than that in the case where the inner surfaces are bonded. Also, although the inner surfaces of the seal part are apparently adhered to each other, in the case where they are not adhered at all or are easily peeled off, when the container is pressed, the fluid enters the apparently adhered part. The dimension in the thickness direction of the seal portion at the portion where the fluid enters is larger than that when the inner surfaces are bonded.
【００１２】すなわち、容器を押し付けた後にシール部
の厚さ方向に現れる寸法を、シール部の内面同志が良好
に接着している場合の厚さ方向に現れる寸法と比較する
ことで、シール部の良否を判定することができる。That is, by comparing the dimension appearing in the thickness direction of the seal portion after pressing the container with the dimension appearing in the thickness direction when the inner surfaces of the seal portion are well adhered to each other, The quality can be determined.
【００１３】[0013]
【実施例】以下、図面を参照して本発明の実施例を説明
する。Embodiments of the present invention will be described below with reference to the drawings.
【００１４】図６の（１）に示す歯磨剤を充填したチュ
ーブ２は筒状の不透明な可撓材から成形されたもので、
一端がシール部２ａとされ他端がキャップ３により覆わ
れている。図４の（１）に示すように、そのシール部２
ａは、歯磨剤２５の充填後にチューブ２の互いに対向す
る内面同志を接着することで形成され、図中左右方向に
沿うシール部２ａの外表面間の厚さ方向寸法ｔは、チュ
ーブ２の内面同志が良好に接着されるとチューブ材の厚
さの略２倍になり、図中上下方向に沿うシール部２ａの
幅Ｗはシール部２ａの全長に亘り均一となるようにその
内面同志は接着される。その接着は、例えばチューブ２
の材質を熱可塑性樹脂としてヒートシル装置や超音波シ
ール装置を用いて内面同志を溶着したり、その材質を導
体入り熱可塑性樹脂として誘導加熱シール装置を用いて
内面同志を溶着することで行うことができる。The tube 2 filled with the dentifrice shown in FIG. 6 (1) is formed from a cylindrical opaque flexible material.
One end is a seal portion 2 a and the other end is covered with a cap 3. As shown in (1) of FIG.
a is formed by adhering mutually opposing inner surfaces of the tube 2 after filling with the dentifrice 25. The thickness direction dimension t between the outer surfaces of the seal portion 2a along the left-right direction in the figure is the inner surface of the tube 2. When the two members are bonded well, the thickness of the tube material is approximately twice, and the width W of the seal portion 2a along the vertical direction in the figure is bonded so that the inner surface of the seal portion 2a is uniform over the entire length of the seal portion 2a. To be done. For example, the tube 2
It is possible to weld the inner surface of each other by using a heat sill device or an ultrasonic sealing device as the material of the thermoplastic resin, or by welding the inner surface of the material as a thermoplastic resin containing a conductor by using an induction heating sealing device. it can.
【００１５】図２は、そのチューブ入り歯磨剤の生産ラ
インにおける検査工程を示し、歯磨剤を充填した多数の
チューブ２が等間隔で並列した状態でコンベア１により
図中矢印Ａ方向に搬送される。図１に示すように、各チ
ューブ２はコンベア１上に載置された支持台４にキャッ
プ３側を下方として挿入された状態で搬送され、この搬
送時にシール部２ａの厚さ方向は搬送方向に直交するも
のとされる。FIG. 2 shows the inspection process in the tube-containing dentifrice production line, in which a large number of tubes 2 filled with dentifrice are conveyed in the direction of arrow A in FIG. .. As shown in FIG. 1, each tube 2 is transported in a state in which the cap 3 side is inserted downwardly on the support base 4 placed on the conveyor 1, and the thickness direction of the seal portion 2a is the transport direction during this transport. It is assumed to be orthogonal to.
【００１６】そのコンベア１により搬送されるチューブ
２を２本ずつ押し付ける押付装置５が設けられている。
この押付装置５は、コンベア１の一方側と他方側に配置
される一対の駆動装置６ａ、６ｂを備える。各駆動装置
６ａ、６ｂは、容器２の搬送方向に沿って並列する一対
の回転軸８ａ、８ｂ、８ｃ、８ｄを縦軸中心に回転駆動
する。各回転軸８ａ、８ｂ、８ｃ、８ｄにアーム９ａ、
９ｂ、９ｃ、９ｄが固定され、コンベア１の一方側に位
置するアーム９ａ、９ｂに取付けられた支軸１０ａ、１
０ｂに、押し付けブロック１１ａがベアリング（図示省
略）を介し相対回転可能に連結され、コンベア１の他方
側に位置するアーム９ｃ、９ｄに取付けられた支軸１０
ｃ、１０ｄに、押し付けブロック１１ｂがベアリング
（図示省略）を介し相対回転可能に連結されている。各
押し付けブロック１１ａ、１１ｂに、コンベア１により
搬送される２本のチューブ２に対向する押付面１２ａ、
１２ｂ、１２ｃ、１２ｄが形成されている。A pressing device 5 for pressing the tubes 2 conveyed by the conveyor 1 two by two is provided.
The pressing device 5 includes a pair of driving devices 6a and 6b arranged on one side and the other side of the conveyor 1. Each drive device 6a, 6b rotationally drives a pair of rotating shafts 8a, 8b, 8c, 8d arranged in parallel along the transport direction of the container 2 about the vertical axis. Each rotation shaft 8a, 8b, 8c, 8d has an arm 9a,
9b, 9c, 9d are fixed and support shafts 10a, 1 attached to arms 9a, 9b located on one side of the conveyor 1.
0b, a pressing block 11a is rotatably connected via a bearing (not shown), and a supporting shaft 10 attached to arms 9c and 9d located on the other side of the conveyor 1.
A pressing block 11b is connected to c and 10d so as to be relatively rotatable via a bearing (not shown). Each pressing block 11a, 11b has a pressing surface 12a facing the two tubes 2 conveyed by the conveyor 1,
12b, 12c and 12d are formed.
【００１７】上記各回転軸８ａ、８ｂ、８ｃ、８ｄは駆
動装置６ａ、６ｂにより図中矢印方向にコンベヤ１の搬
送速度と同調して回転駆動される。これにより、各押し
付けブロック１１ａ、１１ｂは円運動し、コンベヤ１に
よって搬送されるチューブ２を２本ずつ押付面１２ａ、
１２ｂ、１２ｃ、１２ｄにより挟み込んで押し付ける。The rotary shafts 8a, 8b, 8c, 8d are rotationally driven by drive devices 6a, 6b in the direction of the arrow in the figure in synchronization with the conveying speed of the conveyor 1. As a result, each pressing block 11a, 11b moves circularly, and two tubes 2 conveyed by the conveyor 1 are pressed by the pressing surfaces 12a, 12a.
It is sandwiched by 12b, 12c and 12d and pressed.
【００１８】上記押付装置５の搬送方向前方に、チュー
ブ２のシール部２ａの厚さ方向に現れる寸法を測定する
測定装置３０が設けられている。図１の（２）に示すよ
うに、その測定装置３０はコンベア１の一方側と他方側
に配置される一対の変位センサ３１、３２を備えてい
る。図３に示すように、各センサ３１、３２は発光素子
３１ａ、３２ａと受光素子３１ｂ、３２ｂとレンズ３１
ｃ、３２ｃとを備えた公知のもので、各発光素子３１
ａ、３２ａから出射した光Ｒａ、Ｒｂのシール部２ａの
外表面における乱反射光Ｒａ′、Ｒｂ′がレンズ３１
ｃ、３２ｃを介し受光素子３１ｂ、３２ｂにより受光さ
れる。各受光素子３１ｂ、３２ｂは、発光素子３１ａ、
３２ａとシール部２ａの外表面との距離Ｌａ、Ｌｂに比
例した大きさの電流信号を制御装置３３に出力する。そ
の制御装置３３は、各受光素子３１ｂ、３２ｂからの信
号に基づいてシール部２ａの外表面間の厚さ方向寸法ｔ
を演算する。すなわち、両発光素子３１ａ、３２ａの間
の距離Ｌｃから前記発光素子３１ａ、３２ａとシール部
２ａの外表面との距離Ｌａ、Ｌｂを差し引くことで、シ
ール部２ａの外表面間の厚さ方向寸法ｔを求める。その
求められた寸法ｔは、制御装置３３に接続された表示装
置４０により表示される。なお、この測定装置３０によ
る寸法ｔの測定は、図４の（１）に示すようにチューブ
２の内部に最も近接した位置Ｐにおいてシール部２ａの
全長に亘り行なわれる。A measuring device 30 for measuring the dimension of the sealing portion 2a of the tube 2 appearing in the thickness direction is provided in front of the pressing device 5 in the conveying direction. As shown in (2) of FIG. 1, the measuring device 30 includes a pair of displacement sensors 31 and 32 arranged on one side and the other side of the conveyor 1. As shown in FIG. 3, each sensor 31, 32 includes a light emitting element 31a, 32a, a light receiving element 31b, 32b, and a lens 31.
c, 32c, which are publicly known ones, each light emitting element 31
The diffusely reflected light Ra 'and Rb' on the outer surface of the seal portion 2a of the light Ra and Rb emitted from a and 32a are reflected by the lens 31.
The light is received by the light receiving elements 31b and 32b via c and 32c. Each of the light receiving elements 31b and 32b includes a light emitting element 31a,
A current signal having a magnitude proportional to the distances La and Lb between 32a and the outer surface of the seal portion 2a is output to the control device 33. The control device 33 controls the dimension t in the thickness direction between the outer surfaces of the seal portion 2a based on the signals from the light receiving elements 31b and 32b.
Is calculated. That is, by subtracting the distances La and Lb between the light emitting elements 31a and 32a and the outer surface of the seal portion 2a from the distance Lc between the light emitting elements 31a and 32a, the dimension in the thickness direction between the outer surfaces of the seal portion 2a. Find t. The obtained size t is displayed by the display device 40 connected to the control device 33. The measurement of the dimension t by the measuring device 30 is performed over the entire length of the seal portion 2a at the position P closest to the inside of the tube 2 as shown in (1) of FIG.
【００１９】本実施例では、その制御装置３３は入出力
インタフェイス３４と中央処理装置３５と記憶装置３６
とを備えたマイクロコンピュータにより構成されてい
る。その記憶装置３６に、シール部２ａの溶着の良否に
より予め設定した基準値と、シール部２ａの良否を判定
するためのプログラムが記憶され、そのプログラムに従
い制御装置３３はシール部２ａの良否を判定する。本実
施例では、チューブ２の内面同志が良好に接着されてい
れば取り得るであろうシール部２ａの外表面間の厚さ方
向寸法の上限値に基づき基準値ｔ0 を定め、前記測定値
ｔが基準値ｔ0 以上であればシール不良であると判定
し、不良品本数をカウントアップして前記表示装置４０
により表示すると共に、不良品排出信号を不良品排出装
置４１に出力する。その不良品排出装置４１は、例えば
図２に示すように前記搬送コンベア１に交差する排出コ
ンベア４２と、搬送コンベア１上のチューブ２を排出コ
ンベア４２上に排出するアクチュエータ４３とにより構
成される。In this embodiment, the control unit 33 includes an input / output interface 34, a central processing unit 35, and a storage unit 36.
And a microcomputer provided with. The storage device 36 stores a reference value set in advance according to the quality of welding of the seal portion 2a and a program for determining the quality of the seal portion 2a, and the control device 33 determines the quality of the seal portion 2a according to the program. To do. In the present embodiment, the reference value t 0 is set based on the upper limit value of the dimension in the thickness direction between the outer surfaces of the seal portion 2a that would be possible if the inner surfaces of the tube 2 were well bonded, and the measured value If t is equal to or larger than the reference value t 0 , it is determined that the seal is defective, the number of defective products is counted up, and the display device 40 is displayed.
And the defective product discharge signal is output to the defective product discharging device 41. The defective product discharging device 41 is composed of, for example, as shown in FIG. 2, a discharging conveyor 42 intersecting with the carrying conveyor 1 and an actuator 43 for discharging the tube 2 on the carrying conveyor 1 onto the discharging conveyor 42.
【００２０】図４の（２）に示すように、シール部２ａ
の内面同志が接着せず歯磨剤２５がチューブ２の外部に
洩れている場合、その洩れが生じている部分でのシール
部２ａの外表面間の厚さ方向寸法ｔは、図４の（１）に
示すようにシール部２ａの内面同志が良好に接着してい
る場合に比べ大きくなる。また、図４の（３）に示すよ
うに歯磨剤２５がチューブ２の外部に洩れてはいない
が、本来接着されるべきシール部２ａの内面同志が部分
的に接着されず離反している場合、その接着されていな
い部分のシール部の外表面間の厚さ方向寸法ｔは、シー
ル部２ａの内面同志が良好に接着している場合に比べ大
きくなる。また、シール部２ａの内面同志が見掛け上は
接着しているが、実際は全く接着されずあるいは容易に
剥離するような場合、チューブ２を押付装置５により押
し付けることで歯磨剤２５はその見掛け上接着している
部分に入り込むため、図４の（２）あるいは図４の
（３）に示す状態と同様の状態になり、その歯磨剤２５
が入り込んだ部分でのシール部２ａの外表面間の厚さ方
向寸法ｔは、シール部２ａの内面同志が良好に接着して
いる場合に比べ大きくなる。As shown in FIG. 4B, the seal portion 2a
4 does not adhere to each other and the dentifrice 25 leaks to the outside of the tube 2, the dimension t in the thickness direction between the outer surfaces of the seal portion 2a at the leaking portion is (1) in FIG. As shown in (), the inner surface of the seal portion 2a is larger than that in the case where the inner surfaces are favorably bonded. Further, as shown in (3) of FIG. 4, when the dentifrice 25 does not leak to the outside of the tube 2, but the inner surfaces of the seal portion 2a, which should be originally adhered, are partially adhered and separated from each other. The dimension t in the thickness direction between the outer surfaces of the non-bonded seal portion is larger than that in the case where the inner surfaces of the seal portion 2a are well bonded. In addition, when the inner surfaces of the seal portion 2a are apparently adhered to each other, but in reality they are not adhered at all or are easily peeled off, the dentifrice 25 is apparently adhered by pressing the tube 2 with the pressing device 5. Since it enters into the part where the dentifrice is applied, the state becomes the same as the state shown in (2) of FIG. 4 or (3) of FIG.
The dimension t in the thickness direction between the outer surfaces of the seal portion 2a at the portion where is inserted becomes larger than that in the case where the inner surfaces of the seal portion 2a are well bonded.
【００２１】よって上記実施例によれば、押付装置５に
よりチューブ２を押し付け、しかる後に測定装置３０に
よりシール部２ａの外表面間の厚さ方向寸法ｔを測定
し、その測定値を制御装置３３により基準値ｔ0 と比較
することで、シール部２ａのシール不良を検知できる。
しかも、歯磨剤２５の洩れが微量であったり見掛け上の
洩れはないがチューブ２に力が作用すると洩れる虞のあ
るシール不良であっても検知でき、その検知精度はチュ
ーブ２に充填される歯磨剤２５の量に影響されることは
ない。Therefore, according to the above-mentioned embodiment, the tube 2 is pressed by the pressing device 5, and thereafter the measuring device 30 measures the dimension t in the thickness direction between the outer surfaces of the seal portion 2a, and the measured value is controlled by the control device 33. Thus, by comparing with the reference value t 0 , it is possible to detect the sealing failure of the sealing portion 2a.
Moreover, even if there is a slight amount of leakage of the dentifrice 25 or no apparent leakage, it is possible to detect even a seal failure that may be leaked when force is applied to the tube 2, and the detection accuracy is the toothpaste filled in the tube 2. It is not affected by the amount of the agent 25.
【００２２】上記歯磨剤の生産ラインにおいて、７５８
００本／日のチューブ２のシール部２ａの検査を上記実
施例構成により行なったところ、６７本のシール不良を
検出した。その検出したシール部２ａを目視確認したと
ころ、６７本すべてシール不良であることが確認され
た。また、８１５００本／日のチューブ２のシール部２
ａの検査を上記実施例構成により行なったところ、７７
本のシール不良を検出した。その検出したシール部２ａ
を目視確認したところ、７６本がシール不良で１本のみ
正常品をシール不良として検出していた。すなわち、極
めて高い精度でシール不良を検出できることが確認され
た。In the above dentifrice production line, 758
When the seal portion 2a of the tube 2 of 00 tubes / day was inspected by the configuration of the above-mentioned embodiment, 67 sealing defects were detected. Visual inspection of the detected seal portion 2a confirmed that all 67 seals were defective. In addition, the seal part 2 of the tube 2 of 81500 tubes / day
When the inspection of "a" was performed by the configuration of the above embodiment, it was 77
Bad book seal was detected. The detected seal portion 2a
As a result of visual inspection, 76 were defective seals, and only one was detected as a defective seal. That is, it was confirmed that the seal defect can be detected with extremely high accuracy.
【００２３】なお、本発明は上記実施例に限定されな
い。例えば、上記実施例ではチューブ２を不透明材製と
したが透明材製であってもよい。また、上記実施例では
シール部２ａの厚さ方向に現れる寸法としてシール部２
ａの外表面間の寸法ｔを測定したが、シール部２ａの内
面間の寸法を測定してもよい。例えばチューブ２を透明
材製とする場合は、図５に示すように、上記同様の測定
装置３０の発光素子３１ａ、３２ａから出射される光は
チューブ２を透過して不透明な歯磨材２５において乱反
射するため、各発光素子３１ａ、３２ａとシール部２ａ
の内面との距離Ｌａ′、Ｌｂ′が計測される。この計測
値を両発光素子３１ａ、３２ａの間の距離Ｌｃから差し
引くことでシール部２ａの内面間の寸法ｔ′が求められ
る。この場合、シール部２ａの内面間に歯磨材２５が入
り込んでいない場合はシール部２ａの内面間の寸法ｔ′
は０であるため、シール部２ａの良否を判定する基準値
は０になり、寸法ｔ′が測定されればシール不良である
と判定できる。The present invention is not limited to the above embodiment. For example, although the tube 2 is made of an opaque material in the above embodiment, it may be made of a transparent material. Further, in the above-described embodiment, the size of the seal portion 2a is defined as the dimension appearing in the thickness direction.
Although the dimension t between the outer surfaces of a is measured, the dimension between the inner surfaces of the seal portion 2a may be measured. For example, when the tube 2 is made of a transparent material, as shown in FIG. 5, the light emitted from the light emitting elements 31a and 32a of the measuring device 30 similar to the above transmits the tube 2 and is diffusely reflected by the opaque toothpaste 25. Therefore, each light emitting element 31a, 32a and the seal portion 2a
The distances La ′ and Lb ′ from the inner surface of are measured. By subtracting this measured value from the distance Lc between the light emitting elements 31a and 32a, the dimension t'between the inner surfaces of the seal portion 2a can be obtained. In this case, when the toothpaste 25 does not enter between the inner surfaces of the seal portion 2a, the dimension t ′ between the inner surfaces of the seal portion 2a.
Is 0, the reference value for determining the quality of the seal portion 2a is 0, and if the dimension t'is measured, it can be determined that the seal is defective.
【００２４】また、上記実施例では測定装置として変位
センサを用いたが、シール部の厚さ方向に現れる寸法を
測定できるものであれば特に限定されず、例えばシール
部における超音波の伝播時間が厚さにより変化するのを
利用して寸法測定を行なう超音波厚さ計や、シール部に
おける放射線や赤外線の吸収量が厚さにより変化するの
を利用する厚さ計を用いてもよい。Further, although the displacement sensor is used as the measuring device in the above embodiment, it is not particularly limited as long as it can measure the dimension appearing in the thickness direction of the seal portion, and for example, the propagation time of ultrasonic waves in the seal portion. It is also possible to use an ultrasonic thickness gauge that measures dimensions by utilizing the fact that it changes depending on the thickness, or a thickness gauge that uses that the amount of absorption of radiation or infrared rays in the seal portion changes depending on the thickness.
【００２５】また、検査対象は歯磨剤充填用チューブに
限定されず、歯磨剤以外の液状、ペースト状、粉末状の
薬剤や食品といった流動物を封入する容器も検査対象に
なり、例えば図６の（２）に示すようなフレキシブルパ
ウチ５０の外周囲のシール部５０ａの検査にも本発明を
適用できる。The object to be inspected is not limited to the dentifrice filling tube, and a container for enclosing a fluid such as a liquid, paste or powdery medicine or food other than the dentifrice is also an object to be inspected. The present invention can be applied to the inspection of the seal portion 50a around the outer periphery of the flexible pouch 50 as shown in (2).
【００２６】また、容器の押し付け手段も容器を押し付
けることができれば上記実施例に限定されない。例え
ば、上記実施例では起立状のチューブを押し付け部材に
より両側から挟み込んで押し付けたが、図７に示すよう
に、コンベヤ１上でチューブ２を寝かせた状態で搬送
し、押し付け部材５′とコンベヤ１によりチューブ２を
挟み込むようにして押し付けてもよい。The container pressing means is not limited to the above embodiment as long as the container can be pressed. For example, in the above embodiment, the upright tube is sandwiched by the pressing members from both sides and pressed, but as shown in FIG. 7, the tube 2 is conveyed on the conveyor 1 while lying down, and the pressing member 5'and the conveyor 1 are conveyed. The tube 2 may be sandwiched between and pressed.
【００２７】[0027]
【発明の効果】本発明の流動物容器におけるシール部の
検査方法は、自動化ラインにおける大量生産品の検査に
利用でき、また、流動物の洩れが微量であったり見掛け
上の洩れはないが容器に力が作用すると洩れる虞のある
シール不良であっても比較的簡単な構成で確実に検知で
きる。また、本発明方法によるシール不良の検知精度は
容器に充填される流動物の量に影響されず、容器や流動
物が透明であっても検知できる。本件発明装置は本件発
明方法を実施するのに供することができる。INDUSTRIAL APPLICABILITY The method for inspecting the seal portion of a fluid container according to the present invention can be used for inspecting mass-produced products in an automated line, and there is little leakage of fluid or no apparent leakage, but a container. Even if the seal is defective, which may be leaked when a force is applied to it, it can be reliably detected with a relatively simple configuration. Further, the accuracy of detection of a seal defect by the method of the present invention is not affected by the amount of the fluid filled in the container, and can be detected even if the container or the fluid is transparent. The device of the present invention can be used for carrying out the method of the present invention.
【図１】本発明の実施例のシール部の検査装置の構成説
明図FIG. 1 is an explanatory diagram of a configuration of a seal portion inspection device according to an embodiment of the present invention.
【図２】本発明の実施例のチューブ入り歯磨剤の生産ラ
インにおける検査工程を示す図FIG. 2 is a diagram showing an inspection process in a tube-containing dentifrice production line according to an embodiment of the present invention.
【図３】本発明の実施例のシール部の測定装置の構成説
明図FIG. 3 is an explanatory diagram of a configuration of a seal portion measuring device according to an embodiment of the present invention.
【図４】チューブのシール部の断面図FIG. 4 is a sectional view of a seal portion of a tube.
【図５】本発明の異なった実施例の測定装置の構成説明
図FIG. 5 is a structural explanatory view of a measuring device according to another embodiment of the present invention.
【図６】流動物容器の斜視図FIG. 6 is a perspective view of a fluid container.
【図７】本発明の異なった実施例の押し付け手段の説明
図FIG. 7 is an explanatory view of a pressing means according to another embodiment of the present invention.
２ チューブ ２ａ シール部 ５ 押付装置 ３０ 測定装置 ３３ 制御装置 2 Tube 2a Seal part 5 Pressing device 30 Measuring device 33 Control device
Claims (2)
することで形成したシール部の検査方法であって、その
容器を押し付けた後にシール部の厚さ方向に現れる寸法
を測定し、その測定値をシール部の接着の良否に基づい
て予め定めた基準値と比較し、その比較結果に基づいて
シール部の良否を判定することを特徴とする流動物容器
におけるシール部の検査方法。1. A method for inspecting a seal portion formed by adhering inner surfaces of a fluid container made of a flexible material to each other, and measuring a dimension appearing in a thickness direction of the seal portion after pressing the container. , A method for inspecting a seal portion in a fluid container, characterized by comparing the measured value with a predetermined reference value based on the quality of adhesion of the seal portion, and determining the quality of the seal portion based on the comparison result. ..
することで形成したシール部の検査装置であって、その
容器を押し付ける手段と、そのシール部の厚さ方向に現
れる寸法を測定する手段と、シール部の接着の良否に基
づいて予め定めた基準値を記憶する記憶手段と、その測
定値と基準値とを比較してシール部の良否を判定する手
段とを備えることを特徴とする流動物容器におけるシー
ル部の検査装置。2. A device for inspecting a seal part formed by adhering inner surfaces of a fluid container made of a flexible material to each other, wherein a means for pressing the container and a dimension appearing in the thickness direction of the seal part are provided. A means for measuring, a storage means for storing a reference value that is predetermined based on the quality of adhesion of the seal portion, and means for comparing the measured value with the reference value to determine the quality of the seal portion are provided. The inspection device of the seal part in the characteristic fluid container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11224792A JPH05281079A (en) | 1992-04-03 | 1992-04-03 | Inspection method of sealing part of fluide container and inspection apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11224792A JPH05281079A (en) | 1992-04-03 | 1992-04-03 | Inspection method of sealing part of fluide container and inspection apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05281079A true JPH05281079A (en) | 1993-10-29 |
Family
ID=14581929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11224792A Pending JPH05281079A (en) | 1992-04-03 | 1992-04-03 | Inspection method of sealing part of fluide container and inspection apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05281079A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006153633A (en) * | 2004-11-29 | 2006-06-15 | Mitsubishi Electric Engineering Co Ltd | Flaw determining device of matter to be inspected |
| JPWO2012165419A1 (en) * | 2011-05-30 | 2015-02-23 | ライオン株式会社 | Lighting system, inspection system and control system |
| JP2015152460A (en) * | 2014-02-15 | 2015-08-24 | 大森機械工業株式会社 | Tube container-checking apparatus |
| WO2016088713A1 (en) * | 2014-12-01 | 2016-06-09 | 大森機械工業 株式会社 | Inspecting apparatus for tube container |
| US9664590B2 (en) | 2013-02-20 | 2017-05-30 | Iwk Verpackungstechnik Gmbh | Process and device for the tightness check of a container |
| JP2019090713A (en) * | 2017-11-15 | 2019-06-13 | サッポロビール株式会社 | Container inspection device and method for inspecting container |
-
1992
- 1992-04-03 JP JP11224792A patent/JPH05281079A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006153633A (en) * | 2004-11-29 | 2006-06-15 | Mitsubishi Electric Engineering Co Ltd | Flaw determining device of matter to be inspected |
| JPWO2012165419A1 (en) * | 2011-05-30 | 2015-02-23 | ライオン株式会社 | Lighting system, inspection system and control system |
| US9664590B2 (en) | 2013-02-20 | 2017-05-30 | Iwk Verpackungstechnik Gmbh | Process and device for the tightness check of a container |
| EP2959282B1 (en) * | 2013-02-20 | 2018-12-12 | IWK Verpackungstechnik GmbH | Method and device for controlling the tightness of a container |
| JP2015152460A (en) * | 2014-02-15 | 2015-08-24 | 大森機械工業株式会社 | Tube container-checking apparatus |
| WO2016088713A1 (en) * | 2014-12-01 | 2016-06-09 | 大森機械工業 株式会社 | Inspecting apparatus for tube container |
| JPWO2016088713A1 (en) * | 2014-12-01 | 2017-09-07 | 大森機械工業株式会社 | Tube container inspection device |
| JP2019090713A (en) * | 2017-11-15 | 2019-06-13 | サッポロビール株式会社 | Container inspection device and method for inspecting container |
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