JPH0875674A - Inspecting device for sediment foreign matter in bottle - Google Patents
Inspecting device for sediment foreign matter in bottleInfo
- Publication number
- JPH0875674A JPH0875674A JP6235975A JP23597594A JPH0875674A JP H0875674 A JPH0875674 A JP H0875674A JP 6235975 A JP6235975 A JP 6235975A JP 23597594 A JP23597594 A JP 23597594A JP H0875674 A JPH0875674 A JP H0875674A
- Authority
- JP
- Japan
- Prior art keywords
- bottle
- light
- foreign matter
- inspecting
- light projecting
- 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.)
- Granted
Links
- 239000013049 sediment Substances 0.000 title abstract 2
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 238000003384 imaging method Methods 0.000 claims description 4
- 239000013307 optical fiber Substances 0.000 claims description 3
- 238000009792 diffusion process Methods 0.000 claims description 2
- 238000007689 inspection Methods 0.000 claims 1
- 238000005286 illumination Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 235000013361 beverage Nutrition 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000002093 peripheral effect Effects 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
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、液が充填された壜の底
部に異物が沈降しているかどうかを光学的に検査する装
置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for optically inspecting a bottom of a bottle filled with a liquid for foreign matter.
【０００２】[0002]
【従来の技術】壜に飲料が充填されたあと、壜の底部に
異物が沈降しているかどうかの検査が行われる。壜の底
部外面の周辺にはナーリングと呼ばれる多数の凸部があ
る。壜の底部は中央が周辺よりも少し高くなっており、
異物は搬送中の振動により周辺にあることが多い。即
ち、異物はナーリングの上部または近傍に位置すること
になる。このため壜底部の画像から異物の有無を検出す
る場合、ナーリング対策が必要となる。2. Description of the Related Art After a bottle is filled with a beverage, it is inspected whether or not foreign substances have settled on the bottom of the bottle. Around the outer surface of the bottom of the bottle, there are many convex parts called knurling. At the bottom of the bottle, the center is slightly higher than the periphery,
Foreign matter is often present in the vicinity due to vibration during transportation. That is, the foreign matter is located above or near the knurling. Therefore, when detecting the presence or absence of foreign matter from the image of the bottom of the bottle, it is necessary to take measures against knurling.
【０００３】前述の対策として特開平６−３４５７３号
公報は、側方からの照明により異物とナーリングとを含
む第１画像と、下方からの照明によりナーリングのみの
第２画像とを、２台のカメラで順番に撮影し（同公報コ
ラム５，５０行）、二つの画像の差から異物のみを検出
する方式を開示している。As a countermeasure against the above-mentioned problems, Japanese Patent Laid-Open No. 6-34573 discloses that a first image containing foreign matter and knurling by side illumination and a second image only knurling by illumination from below are provided in two sets. A method is disclosed in which images are sequentially taken by a camera (column 5, line 50 of the same publication) and only foreign matter is detected from the difference between two images.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、前述の
方式は、カメラを２台用いること、照明も側方と下方と
の二ヶ所に必要なことから、装置が複雑で高価になると
いう問題点を有している。本発明は、ナーリングからの
光線を撮影することなく、異物からの光線のみを撮影で
きる簡易な構造の壜内沈降異物の検査装置を提供するこ
とを目的とする。However, the above-mentioned method has a problem that the apparatus is complicated and expensive because two cameras are used and lighting is required at two positions, one side and one below. Have SUMMARY OF THE INVENTION It is an object of the present invention to provide a device for inspecting a sedimented foreign matter in a bottle, which has a simple structure and is capable of capturing only a light ray from a foreign matter without capturing a light ray from a knurling.
【０００５】[0005]
【課題を解決するための手段】本発明の壜内沈降異物の
検査装置は、液が充填された壜の底部に異物が沈殿して
いるかどうかを、壜の側方に配置され壜の側部全周に投
光する投光部と、壜の下方に配置され異物からの反射光
を撮影する撮像部とにより検査する装置において、前記
投光部はスリット状の光を出射するものであり、前記ス
リット状の光が壜の底部内面に接するように前記投光部
を配置したことを特徴とする。The apparatus for inspecting sedimented foreign matter in a bottle according to the present invention determines whether or not the foreign matter is settled on the bottom of the bottle filled with the liquid by arranging it on the side of the bottle. In a device that inspects by a light projecting unit that projects light around the entire circumference and an image capturing unit that is arranged below the bottle and that captures reflected light from a foreign object, the light projecting unit emits slit-shaped light, The light projecting portion is arranged so that the slit-shaped light is in contact with the inner surface of the bottom of the bottle.
【０００６】[0006]
【作用】本発明によれば、投光部から出射する光は、ス
リット状であり壜の底部内面に接するように入射するた
め、底部内面では全反射して撮像部へは入射しない。異
物に入射した光は乱反射するため一部の光が撮像部へ入
射する。従って、ナーリングからの光線を撮像すること
なく、異物からの反射光のみを撮影できる。異物がガラ
ス片のみならず黒異物や白異物のときでも、投光部から
の光が異物に入射して乱反射するため同様に撮影でき
る。According to the present invention, the light emitted from the light projecting portion is slit-shaped and is incident so as to come into contact with the inner surface of the bottom portion of the bottle. Therefore, the light is totally reflected on the inner surface of the bottom portion and does not enter the imaging portion. Since the light incident on the foreign matter is diffusely reflected, a part of the light is incident on the imaging unit. Therefore, only the reflected light from the foreign matter can be imaged without imaging the light beam from the knurling. Even when the foreign matter is not only a piece of glass but also a black foreign matter or a white foreign matter, the light from the light projecting unit is incident on the foreign matter and diffusely reflected, so that a similar image can be taken.
【０００７】[0007]
【実施例】以下、本発明に係る壜内沈降異物の検査装置
の一実施例を図１乃至図３を参照して説明する。図１
は、本発明の壜内沈降異物の検査装置の基本構成を示す
正面図である。壜１はスターホイル２により支持されて
円形軌道上を搬送されるようになっている。なお、符号
３は壜１の壜胴上部に係合して壜１を支持する押えベル
トである。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the apparatus for inspecting the sedimented foreign matter in a bottle according to the present invention will be described below with reference to FIGS. FIG.
FIG. 1 is a front view showing a basic configuration of an apparatus for inspecting a sedimented foreign matter in a bottle according to the present invention. The bottle 1 is supported by a star wheel 2 and is transported on a circular orbit. Reference numeral 3 is a holding belt that engages with the upper portion of the bottle body of the bottle 1 to support the bottle 1.
【０００８】壜１の搬送系路の所定位置には、壜１に投
光する一対の投光部４Ａ，４Ｂが壜１の両側方に壜１を
挟むように対向配置されている。投光部４Ａ，４Ｂは、
それぞれ光源５Ａ，５Ｂに接続されている。また、壜１
の下方には撮像部を構成するカメラ６が配置されてい
る。At a predetermined position of the transport path of the bottle 1, a pair of light projecting portions 4A and 4B for projecting light on the bottle 1 are arranged on opposite sides of the bottle 1 so as to sandwich the bottle 1 therebetween. The light projecting units 4A and 4B are
They are connected to the light sources 5A and 5B, respectively. Also, bottle 1
A camera 6 forming an image pickup unit is disposed below the.
【０００９】前記投光部４Ａ，４Ｂは、図２に示される
ように壜１の外周面に沿うように円弧状に形成されてお
り、壜１の側部全周が投光されるようになっている。ま
た、投光部４Ａ，４Ｂは、図３に示されるように（図３
では投光部４Ａのみ示す）光ファイバ７を水平方向に線
状に並べたものであり、光の出射部に光の拡散を抑止す
るミラー８が設置されている。したがって、投光部４
Ａ，４Ｂからは、スリット状の光が出射されるようにな
っている。そして、投光部４Ａ，４Ｂは前記スリット状
の光が壜１の底部内面に接するように配置されている。As shown in FIG. 2, the light projecting portions 4A and 4B are formed in an arc shape along the outer peripheral surface of the bottle 1 so that the entire side portion of the bottle 1 is projected. Has become. Further, the light projecting units 4A and 4B are arranged as shown in FIG.
In the figure, only the light projecting section 4A is shown.) Optical fibers 7 are arranged in a line in the horizontal direction, and a mirror 8 for suppressing diffusion of light is installed at a light emitting section. Therefore, the light projecting unit 4
Slit-shaped light is emitted from A and 4B. The light projecting portions 4A and 4B are arranged so that the slit-shaped light comes into contact with the inner surface of the bottom portion of the bottle 1.
【００１０】次に、前述のように構成された壜内沈降異
物の検査装置の作用を図３を参照して説明する。壜１は
着色壜とし、壜内の液は透明液とする。投光部４Ａ，４
Ｂから出射された光は、図３に示すようにスリット状で
あり壜１の底部内面１ａに接するように入射する。その
ため、入射した光は底部内面１ａで全反射して、カメラ
６には入射しない。なお、スリット状の光線は壜１の底
部内面１ａの全面に入射する。また壜１の底部にあるナ
ーリング１ｂには投光部４Ａ，４Ｂからの直接光は入射
しない。Next, the operation of the apparatus for inspecting the sedimented foreign matter in a bottle constructed as described above will be described with reference to FIG. Bottle 1 is a colored bottle, and the liquid in the bottle is a transparent liquid. Projector 4A, 4
The light emitted from B is slit-shaped as shown in FIG. 3, and is incident so as to come into contact with the bottom inner surface 1 a of the bottle 1. Therefore, the incident light is totally reflected by the bottom inner surface 1a and does not enter the camera 6. The slit-shaped light beam is incident on the entire inner surface 1a of the bottom of the bottle 1. Direct light from the light projecting portions 4A and 4B does not enter the knurling 1b at the bottom of the bottle 1.
【００１１】壜底部に異物１０（ガラス片、黒異物、白
異物など）がある場合には、投光部４Ａ，４Ｂから出射
された光は、異物１０に入射して乱反射する。この乱反
射した光の一部は壜底を透過してカメラ６に入射する。
したがって、ナーリング１ｂからの光を撮影することな
く、異物１０からの反射光のみを撮影できる。When there is a foreign matter 10 (a glass piece, a black foreign matter, a white foreign matter, etc.) on the bottom of the bottle, the light emitted from the light projecting portions 4A and 4B is incident on the foreign matter 10 and diffusely reflected. A part of the irregularly reflected light passes through the bottle bottom and enters the camera 6.
Therefore, it is possible to capture only the reflected light from the foreign matter 10 without capturing the light from the knurling 1b.
【００１２】一方、壜１の底部内面１ａに入射した光
は、全反射後に、壜１の胴内面で順次反射して散乱す
る。この場合、液が粒子分散のある濁液の場合には、液
中で入射光が拡散するので、壜胴内面での反射はない。
濁液の場合、濁度が高いと液が粒子分散により明るく映
るので、異物からの反射光と識別できないため、本発明
の適用は好ましくない。On the other hand, the light incident on the bottom inner surface 1a of the bottle 1 is totally reflected and then sequentially reflected on the inner surface of the barrel of the bottle 1 to be scattered. In this case, when the liquid is a turbid liquid in which particles are dispersed, incident light is diffused in the liquid, so that there is no reflection on the inner surface of the bottle.
In the case of a turbid liquid, when the turbidity is high, the liquid appears bright due to particle dispersion, and therefore it is not possible to distinguish it from the reflected light from a foreign substance, and thus the application of the present invention is not preferable.
【００１３】また、図３に示されるように壜には装飾の
ため肩に凹凸１ｃのあるものが多い。従って、壜の下方
からカメラ６により撮影する場合、入射した散乱光によ
り肩の凹凸１ｃが映ると、異物１０との識別ができな
い。壜１が茶色や緑色のような着色壜の場合には光の透
過率が低いので肩の凹凸１ｃが映ることはないが、壜１
が透明壜の場合には光の透過率が高いので肩の凹凸１ｃ
が映るため、本発明は着色壜に好適に適用され、透明壜
には適用できない場合がある。なお、透明壜であっても
凹凸がない場合は、適用できる。以上のように、本発明
は、壜が着色壜、充填液が透明液の場合に好適に適用さ
れる。Further, as shown in FIG. 3, many bottles have an unevenness 1c on the shoulder for decoration. Therefore, when photographing with the camera 6 from below the bottle, if the unevenness 1c of the shoulder is reflected by the incident scattered light, it cannot be distinguished from the foreign matter 10. When the bottle 1 is a colored bottle such as brown or green, the transmittance of light is low, so the unevenness 1c on the shoulder is not reflected, but the bottle 1
If the bottle is a transparent bottle, the light transmittance is high, so the unevenness of the shoulder 1c
Therefore, the present invention is preferably applied to colored bottles and may not be applied to transparent bottles. It should be noted that even a transparent bottle can be applied if it has no unevenness. As described above, the present invention is suitably applied when the bottle is a colored bottle and the filling liquid is a transparent liquid.
【００１４】[0014]
【発明の効果】以上説明したように、本発明によれば、
カメラの台数は１台のみでよく、又、照明も側方のみか
らでよいので、装置構成が極めて簡易であり、安価な装
置とすることができる。As described above, according to the present invention,
Since the number of cameras is only one and the illumination is only required from the side, the device configuration is extremely simple and the device can be inexpensive.
【図１】本発明に係る壜内沈降異物の検査装置の一実施
例の基本構成を示す正面図である。FIG. 1 is a front view showing a basic configuration of an embodiment of an apparatus for inspecting a sedimented foreign matter in a bottle according to the present invention.
【図２】本発明における投光部と壜との関係を示す平面
図である。FIG. 2 is a plan view showing a relationship between a light projecting portion and a bottle according to the present invention.
【図３】本発明に係る壜内沈降異物の検査装置の一実施
例における作用を説明する説明図である。FIG. 3 is an explanatory view for explaining the operation of the embodiment of the apparatus for inspecting foreign matter in a bottle according to the present invention.
１ 壜 ２ スターホイル ３ 押えベルト ４Ａ，４Ｂ 投光部 ５Ａ，５Ｂ 光源 ６ カメラ ７ 光ファイバ ８ ミラー 1 Bottle 2 Star Wheel 3 Presser Belt 4A, 4B Projector 5A, 5B Light Source 6 Camera 7 Optical Fiber 8 Mirror
Claims (3)
ているかどうかを、壜の側方に配置され壜の側部全周に
投光する投光部と、壜の下方に配置され異物からの反射
光を撮影する撮像部とにより検査する装置において、 前記投光部はスリット状の光を出射するものであり、前
記スリット状の光が壜の底部内面に接するように前記投
光部を配置したことを特徴とする壜内沈降異物の検査装
置。1. A light projecting portion, which is arranged on the side of the bottle and projects light on the entire circumference of the side of the bottle, to determine whether or not foreign matter has settled on the bottom of the bottle filled with the liquid, and below the bottle. In the device for inspecting the reflected light from the foreign matter with an imaging unit, the light projecting unit emits slit-shaped light, and the slit-shaped light is projected so as to contact the inner surface of the bottom of the bottle. An apparatus for inspecting sedimented foreign matter in a bottle, which is characterized by arranging a light section.
であることを特徴とする請求項１記載の壜内沈降異物の
検査装置。2. The apparatus for inspecting sedimented foreign matter in a bottle according to claim 1, wherein the liquid is a transparent liquid and the bottle is a colored bottle.
ものであり、光の出射部に光の拡散を抑止するミラーを
備えたことを特徴とする請求項１記載の壜内沈降異物の
検査装置。3. The bottle settling apparatus according to claim 1, wherein the light projecting unit is formed by arranging optical fibers in a line, and a mirror for suppressing diffusion of light is provided in a light emitting unit. Foreign matter inspection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23597594A JP3318128B2 (en) | 1994-09-05 | 1994-09-05 | Inspection device for foreign substances settled in bottles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23597594A JP3318128B2 (en) | 1994-09-05 | 1994-09-05 | Inspection device for foreign substances settled in bottles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0875674A true JPH0875674A (en) | 1996-03-22 |
| JP3318128B2 JP3318128B2 (en) | 2002-08-26 |
Family
ID=16993976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23597594A Expired - Fee Related JP3318128B2 (en) | 1994-09-05 | 1994-09-05 | Inspection device for foreign substances settled in bottles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3318128B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7057718B2 (en) | 2001-07-12 | 2006-06-06 | Krones Ag | Device and method for inspecting the transparent bottoms of bottles |
| JP2012137397A (en) * | 2010-12-27 | 2012-07-19 | Aron Denki Co Ltd | Foreign matter detector |
| CN104390914A (en) * | 2014-12-12 | 2015-03-04 | 天津普达软件技术有限公司 | Light source system for visual inspection of green vial machine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04118546A (en) * | 1990-05-24 | 1992-04-20 | Asahi Chem Ind Co Ltd | Bottle inspection device |
| JPH04216444A (en) * | 1990-12-17 | 1992-08-06 | Asahi Chem Ind Co Ltd | Device for inspecting bottle |
| JPH0579999A (en) * | 1991-09-24 | 1993-03-30 | Mitsubishi Heavy Ind Ltd | Inspecting device for precipitated foreign object in bottle |
-
1994
- 1994-09-05 JP JP23597594A patent/JP3318128B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04118546A (en) * | 1990-05-24 | 1992-04-20 | Asahi Chem Ind Co Ltd | Bottle inspection device |
| JPH04216444A (en) * | 1990-12-17 | 1992-08-06 | Asahi Chem Ind Co Ltd | Device for inspecting bottle |
| JPH0579999A (en) * | 1991-09-24 | 1993-03-30 | Mitsubishi Heavy Ind Ltd | Inspecting device for precipitated foreign object in bottle |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7057718B2 (en) | 2001-07-12 | 2006-06-06 | Krones Ag | Device and method for inspecting the transparent bottoms of bottles |
| JP2012137397A (en) * | 2010-12-27 | 2012-07-19 | Aron Denki Co Ltd | Foreign matter detector |
| CN104390914A (en) * | 2014-12-12 | 2015-03-04 | 天津普达软件技术有限公司 | Light source system for visual inspection of green vial machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3318128B2 (en) | 2002-08-26 |
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Legal Events
| Date | Code | Title | Description |
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