JP3393088B2 - Cleaning liquid ejection failure detection device - Google Patents
Cleaning liquid ejection failure detection deviceInfo
- Publication number
- JP3393088B2 JP3393088B2 JP17579799A JP17579799A JP3393088B2 JP 3393088 B2 JP3393088 B2 JP 3393088B2 JP 17579799 A JP17579799 A JP 17579799A JP 17579799 A JP17579799 A JP 17579799A JP 3393088 B2 JP3393088 B2 JP 3393088B2
- Authority
- JP
- Japan
- Prior art keywords
- container
- cleaning liquid
- ccd camera
- ejection failure
- detection device
- 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 - Fee Related
Links
Landscapes
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Cleaning In General (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
Description
【発明の詳細な説明】
【０００１】
【発明の属する技術分野】本発明は、容器内での洗浄液
の噴出不良を画像処理により検出する装置に関する。
【０００２】
【従来の技術】ペットボトルのような透光性の容器を１
列で搬入し倒立させてノズル上部へ導き、ノズルから洗
浄液を噴出する洗浄装置がある。噴出した洗浄液は容器
の底部にあたり、内壁を伝わって流下する。このとき、
容器内部は泡で充たされて容器全体が白く見える。ノズ
ルの詰まり等で噴出不良になると、洗浄液が底部まで届
かないので、底部付近は泡で充たされないことになる。
現在は噴出具合を定期に目視で点検している。
【０００３】
【発明が解決しようとする課題】前述の目視による点検
を機械化することが要望されている。本発明は、上述の
事情に鑑みなされたもので、容器内での洗浄液の噴出不
良の検出装置を提供することを目的とする。
【０００４】
【課題を解決するための手段】上述の目的を達成するた
め、本発明は、倒立させた容器の内部へ洗浄液を噴出し
たときの噴出不良を検出する装置であって、容器上方に
設けた照明と、容器側方に設けたＣＣＤカメラと、容器
側方でＣＣＤカメラの反対側に設けた黒板と、得られた
画像を処理する画像処理部とからなり、ウィンドウ内で
闘値よりも暗い画素数が設定値よりも大きいとき噴出不
良と判定することを特徴とするものである。本発明によ
れば、洗浄液が噴出不良の場合には、容器の底部付近は
泡で充たされないことになり、この部分は泡で充たされ
た部分に比較して暗く映るので、画像の明るさを比較す
ることにより噴出不良を検出できる。
【０００５】
【発明の実施の形態】以下、本発明に係る洗浄液噴出不
良の検出装置の一実施形態を図１及び図２を参照して説
明する。図１は本発明の基本構成を示す正面図である。
図１に示すように、洗浄液噴出不良の検出装置は、倒立
させた容器１の上方に設けた照明２と、容器１の側方に
設けたＣＣＤカメラ３と、容器１の側方でＣＣＤカメラ
３の反対側に設けた黒板４と、ＣＣＤカメラ３で撮影さ
れた画像を処理する画像処理部５とから構成されてい
る。
【０００６】容器１はペットボトル等の透光性の容器か
らなり、容器１は１列で搬入され倒立させてノズル６の
上方へ導かれるようになっている。前記ＣＣＤカメラ３
の光軸は水平又は略水平に設定されている。また黒板４
は容器１より大きな幅を有し概略垂直に設置されてい
る。
【０００７】上述の構成において、ノズル６から倒立し
た容器１内に洗浄液を噴出する。噴出した洗浄液は容器
１の底部１ａにあたり、内壁を伝わって流下する。この
とき、ＣＣＤカメラ３で容器１の底部近傍を撮影する。
この場合、照明２によって容器１の底部１ａが照明され
ると、一部の照明光は底部１ａを透過して容器１の底部
１ａの近傍に存在する洗浄液の泡に入射する。泡に入射
した光の一部は反射してＣＣＤカメラ３に入射し、明る
い画像を形成する。
【０００８】図２（ａ）および図２（ｂ）は、ＣＣＤカ
メラ３で得られた画像を示す模式図である。図２（ａ）
は洗浄液の噴出が良好の場合を示し、図２（ｂ）は洗浄
液の噴出不良の場合を示す。洗浄液の噴出が良好な場合
には、照明２からの光は、容器の底部付近に存在する泡
により反射されＣＣＤカメラ３に入射するため、図２
（ａ）に示すように、容器１の底部１ａおよびその近傍
に対応した部分は明るい領域７となる。容器１の外側は
黒板４に対応して暗い領域８となる。
【０００９】一方、ノズル６に詰まりがあったりした場
合には、洗浄液が噴出不良となるため、洗浄液が容器の
底部まで届かないので、底部付近は泡で充たされないこ
とになる。そのため、底部付近から反射する光はない。
したがって、容器内の洗浄不良の部分は、図２（ｂ）に
示すように暗い領域９となる。一方、容器内の泡が存在
する部分は、図２（ａ）と同様に明るい領域７となる。
また容器１の外側は黒板４に対応して暗い領域８とな
る。したがって、画面中の容器底部の付近に対応した箇
処にウインドウＷを設定し、ウインドウＷ内で閾値より
も暗い画素数をカウントし、暗い画素数が設定値よりも
大きいときに、画像処理部５は噴出不良と判定する。
【００１０】
【発明の効果】以上説明したように、本発明によれば、
噴出不良のときは、容器の底部付近が暗く映るので、画
像の明るさを比較することにより噴出不良を検出でき
る。Description: BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to an apparatus for detecting a jetting failure of a cleaning liquid in a container by image processing. 2. Description of the Related Art Translucent containers such as plastic bottles are used for one.
There is a cleaning device that carries in a row, inverts it, guides it to the upper part of the nozzle, and ejects the cleaning liquid from the nozzle. The jetted washing liquid hits the bottom of the container and flows down the inner wall. At this time,
The interior of the container is filled with foam and the entire container looks white. If the ejection becomes defective due to clogging of the nozzle or the like, the cleaning liquid does not reach the bottom, so that the vicinity of the bottom is not filled with bubbles.
At present, the condition of the eruption is regularly checked visually. [0003] It has been desired to mechanize the aforementioned visual inspection. SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide a device for detecting a defective ejection of a cleaning liquid in a container. [0004] In order to achieve the above object, the present invention is an apparatus for detecting a jetting failure when a cleaning liquid is jetted into an inverted container. It consists of provided lighting, a CCD camera provided on the side of the container, a blackboard provided on the side of the container opposite to the CCD camera, and an image processing unit for processing the obtained image. Also, when the number of dark pixels is larger than the set value, it is determined that the ejection is defective. According to the present invention, in the case where the cleaning liquid does not jet well, the vicinity of the bottom of the container is not filled with bubbles, and this portion appears darker than the portion filled with bubbles. The ejection failure can be detected by comparing the values. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG. FIG. 1 is a front view showing the basic configuration of the present invention.
As shown in FIG. 1, a cleaning liquid ejection failure detection device includes an illumination 2 provided above an inverted container 1, a CCD camera 3 provided on the side of the container 1, and a CCD camera provided on the side of the container 1. A blackboard 4 is provided on the opposite side of the apparatus 3 and an image processing unit 5 for processing an image captured by the CCD camera 3. The container 1 is made of a light-transmitting container such as a PET bottle. The containers 1 are carried in a line, are inverted, and are guided above the nozzle 6. The CCD camera 3
Is set to be horizontal or substantially horizontal. Blackboard 4
Has a width larger than that of the container 1 and is installed substantially vertically. In the above configuration, the cleaning liquid is jetted from the nozzle 6 into the inverted container 1. The jetted cleaning liquid hits the bottom 1a of the container 1 and flows down the inner wall. At this time, the vicinity of the bottom of the container 1 is photographed by the CCD camera 3.
In this case, when the bottom 2 a of the container 1 is illuminated by the illumination 2, a part of the illuminating light passes through the bottom 1 a and enters the cleaning liquid bubbles existing near the bottom 1 a of the container 1. Part of the light incident on the bubbles is reflected and incident on the CCD camera 3, forming a bright image. FIGS. 2A and 2B are schematic diagrams showing images obtained by the CCD camera 3. FIG. FIG. 2 (a)
2 shows the case where the ejection of the cleaning liquid is good, and FIG. 2B shows the case where the ejection of the cleaning liquid is defective. When the jetting of the cleaning liquid is good, the light from the illumination 2 is reflected by bubbles existing near the bottom of the container and is incident on the CCD camera 3.
As shown in (a), a portion corresponding to the bottom 1a of the container 1 and the vicinity thereof becomes a bright region 7. The outside of the container 1 is a dark area 8 corresponding to the blackboard 4. On the other hand, if the nozzle 6 is clogged, the cleaning liquid will not discharge well, and the cleaning liquid will not reach the bottom of the container, so that the vicinity of the bottom will not be filled with bubbles. Therefore, no light is reflected from near the bottom.
Therefore, the portion of the container having a poor cleaning is a dark region 9 as shown in FIG. On the other hand, the portion of the container where bubbles exist is a bright region 7 as in FIG.
The outside of the container 1 is a dark area 8 corresponding to the blackboard 4. Therefore, the window W is set at a position corresponding to the vicinity of the container bottom on the screen, and the number of pixels darker than the threshold value is counted in the window W. When the number of dark pixels is larger than the set value, the image processing unit No. 5 is determined to be ejection failure. As described above, according to the present invention,
In the case of an ejection failure, the vicinity of the bottom of the container appears dark, so that the ejection failure can be detected by comparing the brightness of the images.
【図面の簡単な説明】
【図１】本発明に係る洗浄液噴出不良の検出装置の基本
構成を示す正面図である。
【図２】図１に示すＣＣＤカメラで得られた画像を示す
模式図であり、図２（ａ）は洗浄液の噴出が良好の場合
を示し、図２（ｂ）は洗浄液の噴出不良の場合を示す。
【符号の説明】
１ 容器
１ａ 底部
２ 照明
３ ＣＣＤカメラ
４ 黒板
５ 画像処理部
６ ノズル
７ 明るい領域
８，９ 暗い領域
Ｗ ウインドウBRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view showing the basic configuration of a cleaning liquid ejection failure detection device according to the present invention. 2 is a schematic view showing an image obtained by the CCD camera shown in FIG. 1, wherein FIG. 2 (a) shows a case where the cleaning liquid is jetted well, and FIG. 2 (b) shows a case where the jetting of the cleaning liquid is defective. Is shown. [Description of Signs] 1 Container 1a Bottom 2 Lighting 3 CCD Camera 4 Blackboard 5 Image Processing Unit 6 Nozzle 7 Bright Area 8, 9 Dark Area W Window
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平５−164762（ＪＰ，Ａ) 特開 平８−215655（ＪＰ，Ａ) 特開 平９−271734（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) G01N 21/84 - 21/958 B08B 5/00 - 13/00 B67C 3/00 - 11/06 ────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-5-164762 (JP, A) JP-A-8-215655 (JP, A) JP-A-9-271734 (JP, A) (58) Field (Int.Cl. 7 , DB name) G01N 21/84-21/958 B08B 5/00-13/00 B67C 3/00-11/06
Claims (1)
たときの噴出不良を検出する装置であって、 容器上方に設けた照明と、容器側方に設けたＣＣＤカメ
ラと、容器側方でＣＣＤカメラの反対側に設けた黒板
と、得られた画像を処理する画像処理部とからなり、ウ
ィンドウ内で閾値よりも暗い画素数が設定値よりも大き
いとき噴出不良と判定することを特徴とする洗浄液噴出
不良の検出装置。(57) [Claims 1] A device for detecting a jetting failure when a cleaning liquid is jetted into an inverted container, comprising: an illumination provided above the container; When the number of pixels darker than the threshold value in the window is larger than the set value, comprising a CCD camera, a blackboard provided on the side of the container opposite to the CCD camera, and an image processing unit for processing the obtained image. An apparatus for detecting a defective cleaning liquid jet, which is determined to be a defective jetting liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17579799A JP3393088B2 (en) | 1999-06-22 | 1999-06-22 | Cleaning liquid ejection failure detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17579799A JP3393088B2 (en) | 1999-06-22 | 1999-06-22 | Cleaning liquid ejection failure detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001004556A JP2001004556A (en) | 2001-01-12 |
| JP3393088B2 true JP3393088B2 (en) | 2003-04-07 |
Family
ID=16002429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17579799A Expired - Fee Related JP3393088B2 (en) | 1999-06-22 | 1999-06-22 | Cleaning liquid ejection failure detection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3393088B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6608385B2 (en) * | 1998-11-30 | 2003-08-19 | Advantest Corp. | Contact structure and production method thereof and probe contact assembly using same |
| JP4603321B2 (en) * | 2004-09-03 | 2010-12-22 | アサヒ飲料株式会社 | Container cleaning device |
| EP3070011B1 (en) * | 2013-11-11 | 2021-08-11 | Mitsubishi Heavy Industries Machinery Systems, Ltd. | Sterilization device for container |
-
1999
- 1999-06-22 JP JP17579799A patent/JP3393088B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2001004556A (en) | 2001-01-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |