JPH07104290B2 - Bottle inspection equipment - Google Patents
Bottle inspection equipmentInfo
- Publication number
- JPH07104290B2 JPH07104290B2 JP8008589A JP8008589A JPH07104290B2 JP H07104290 B2 JPH07104290 B2 JP H07104290B2 JP 8008589 A JP8008589 A JP 8008589A JP 8008589 A JP8008589 A JP 8008589A JP H07104290 B2 JPH07104290 B2 JP H07104290B2
- Authority
- JP
- Japan
- Prior art keywords
- bottle
- camera
- mouth
- image
- mirror
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明はドリンクびん、ビールびん等に発生したびん
口，ネジ部のひび割れ，カケ等の欠陥を光学的に検出す
るびん検査装置に関する。Description: TECHNICAL FIELD The present invention relates to a bottle inspection device that optically detects defects such as cracks in a bottle mouth, a screw portion, cracks and the like, which occur in a drink bottle, a beer bottle, and the like.
従来、この種のびん検査装置はびん口の上方にリング型
の光源を設け、びん口の上方中心軸に配置したテレビカ
メラにてびん口画像を撮影し、びん口の欠け，割れ等の
欠陥を検査する手段が用いられていた。Conventionally, this type of bottle inspection device is provided with a ring-shaped light source above the bottle mouth, and images of the bottle mouth are taken by a TV camera placed in the upper center axis of the bottle mouth, and defects such as chipping and cracking of the bottle mouth are taken. Was used.
上述した従来のびん検査装置は、びん口の天面しか照明
されないため、びん口の内部やネジ部に発生する欠陥の
検出が難しい欠点がある。The conventional bottle inspection device described above has a drawback that it is difficult to detect defects that occur inside the bottle mouth and the screw portion because only the top surface of the bottle mouth is illuminated.
本発明のびん検査装置は、回転しながら搬送されるびん
の搬送方向に対し前後斜め約45゜上方各々から前記びん
の口ネジを照らす一対の光源を設け、該両光源の光が交
差する点を含み前記搬送方向と垂直な面上において前記
口ネジの斜め約45゜上方に前記びんの移動に追従して回
転するミラーを配置し、このミラーを介して前記びんの
口のネジ部をテレビカメラで撮影し、このテレビカメラ
による画像の前記びんの口ネジ部左右の不要散乱光によ
る像を除去するための遮光板を前記ミラーに設け、前記
テレビカメラによる画像の前記びんの口ネジ部の中央部
に欠陥検出のためのウインドウを設けたことを特徴とす
る。The bottle inspection apparatus of the present invention is provided with a pair of light sources that illuminate the mouth screw of the bottle from about 45 ° diagonally forward and backward with respect to the transport direction of the bottle being rotated, and the points of intersection of the light from both sources. A mirror that rotates following the movement of the bottle is arranged at an angle of about 45 ° diagonally above the mouth screw on a plane that includes and includes the screw, and the screw part of the mouth of the bottle is set through the mirror. The mirror is provided with a light-shielding plate for taking an image by a camera and removing an image of unnecessary scattered light on the left and right of the bottle screw part of the bottle of the image by the TV camera, It is characterized in that a window for detecting defects is provided in the central portion.
次に、本発明について図面を参照して説明する。 Next, the present invention will be described with reference to the drawings.
第１図は本発明の一実施例の斜視図である。FIG. 1 is a perspective view of an embodiment of the present invention.
回転しながら搬送されるびん１の搬送方向２の前後上方
の各々に光源３をびん１の口，ネジ部４を斜め約45゜か
ら証明するように取付け、両光源３の光軸が交差する点
を含み搬送方向２に垂直な面上で斜め上方約45゜の角度
からミラー５を介してびん口，ネジ部４をテレビカメラ
６で撮影している。びん１を回転させることにより、び
ん口，ネジ部４の全面の画像をテレビカメラ６に取り込
むことが可能となる。The light sources 3 are attached to the mouth of the bottle 1 and the screw portion 4 at an angle of about 45 ° so that the optical axes of both light sources 3 intersect with each other at the upper and lower sides in the conveying direction 2 of the bottle 1 conveyed while rotating. The bottle mouth and the screw portion 4 are photographed by the TV camera 6 through the mirror 5 from an angle of about 45 ° obliquely upward on a plane including the point and perpendicular to the conveying direction 2. By rotating the bottle 1, it is possible to capture an image of the entire surface of the bottle mouth and the screw portion 4 into the television camera 6.
びん１を回転させながら搬送させており、びん１の移動
に追従させて、従来から知られているミラー５を走査さ
せてテレビカメラ６の視野中心軸にびん口，ネジ部４の
画像が来るようにする技術を用いている。テレビカメラ
６は１画像当り約16.7msec毎に画像を絞り出すので、び
ん１が回転する間、連続的に画像を複数画面分取り出し
て処理している。The bottle 1 is being conveyed while being rotated, and the movement of the bottle 1 is followed, the conventionally known mirror 5 is scanned, and the image of the bottle mouth and the screw portion 4 comes to the central axis of the visual field of the television camera 6. Technology to do so. Since the television camera 6 squeezes out an image every approximately 16.7 msec, one image is continuously taken out for a plurality of screens while the bottle 1 rotates.
第２図はテレビカメラ６により撮らえたびん口，ネジ部
４の画面例を示し、第２図（ａ）は良品びんのミラー５
に遮光板７を設けてない場合の画像、第２図（ｂ）は良
品びんのミラー５の遮光板７が有る場合の画像、第２図
（ｃ）は欠陥びんのミラー５に遮光板７が有る場合の画
像，第２図（ｄ）は有効処理範囲のウインドウ9,10を示
す画像であり、そして第２図（ｅ）はカメラ６で撮えた
実画面を示す。FIG. 2 shows an example of a screen of the bottle mouth and the screw portion 4 taken by the TV camera 6, and FIG. 2 (a) is a mirror 5 of a non-defective bottle.
2B is an image when the light shielding plate 7 of the mirror 5 of the non-defective bottle is present, and FIG. 2C is a light shielding plate 7 of the mirror 5 of the defective bottle. 2 (d) is an image showing the windows 9 and 10 of the effective processing range, and FIG. 2 (e) shows an actual screen taken by the camera 6.
びん口，ネジ部４の搬送方向側は光源３により照明され
ているので、テレビカメラ６による画像は第２図（ａ）
のように良品びんでも口，ネジ部４の左右が明るく照ら
し出されているが、口，ネジ部４の中央部への光はカメ
ラ６側に乱反射されにくく中央部は暗くなっている。左
右の明るく照らし出された部分はミラー５がびん１の移
動に追従する間、光源３との位置関係が微妙に関係し、
明るさが変化し、また光量３の光源を高くしすぎると明
るくなりすぎ、テレビカメラ６の全体のレベルに影響を
及ぼすため、実施例ではミラー５の反射面上に遮光板７
を設け、口，ネジ部４の左右の明るくなる部分をテレビ
カメラ６の画像上で第２図（ｂ）のように遮光してこの
影響を除去している。Since the bottle mouth and the conveying direction side of the screw part 4 are illuminated by the light source 3, the image taken by the television camera 6 is shown in FIG.
Even in a non-defective bottle, the left and right sides of the mouth and the screw portion 4 are illuminated brightly, but the light to the central portion of the mouth and the screw portion 4 is not diffusely reflected by the camera 6 side and the central portion is dark. The left and right brightly illuminated parts have a delicate positional relationship with the light source 3 while the mirror 5 follows the movement of the bottle 1.
The brightness changes, and if the light source of the light amount 3 is set too high, it becomes too bright and affects the overall level of the television camera 6. Therefore, in the embodiment, the shading plate 7 is provided on the reflecting surface of the mirror 5.
Is provided, and the left and right bright portions of the mouth and the screw portion 4 are shielded from light on the image of the television camera 6 as shown in FIG.
びん口，ネジ部４に欠陥があると、乱反射されて第２図
（ｃ）に示す画像８のように明るく光る。この欠陥の画
像８は、１画面の処理時間約16.7msec間にびん１が回転
移動するので、びん口，ネジ部４の円周方向に残像状態
となって、第２図（ｃ）のように円周方向に尾を引く形
で撮えられる。If there is a defect in the bottle mouth or the screw portion 4, it is diffusely reflected and brightly shines as in the image 8 shown in FIG. 2 (c). In the image 8 of this defect, since the bottle 1 is rotationally moved in a processing time of about 16.7 msec for one screen, an afterimage is generated in the circumferential direction of the bottle mouth and the screw portion 4, as shown in FIG. 2 (c). It can be taken with a shape that draws a tail in the circumferential direction.
カメラ６は斜め上方向から撮像しているので、第２図
（ｄ）、（ｅ）に示すように、びん口，ネジ部４の画像
の内、上側９はびん口，ネジ部４のカメラ６の反対側を
内側から覗き込む画像となり、下側10はびん口，ネジ部
４のカメラ６の手前側を外側から見る画像となる。Since the camera 6 images from an obliquely upper direction, as shown in FIGS. 2D and 2E, the upper side 9 of the images of the bottle mouth and the screw portion 4 is the camera of the bottle mouth and the screw portion 4. The opposite side of 6 is an image viewed from the inside, and the lower side 10 is an image of the bottle mouth and the front side of the screw 6 of the camera 6 viewed from the outside.
したがって、びん口，ネジ部４の中央部を欠陥８が上側
９と下側10とを通過することになり、片側だけではカメ
ラ６へ散乱されない欠陥８も、上側と下側10の両側で検
査することにより検出精度を高めることができる。上側
９と下側10では画像の明るさレベルが異なるので、第２
図（ｄ）のように欠陥検出のための処理有効範囲のウイ
ンドウ11,12を別個に設け、ウインドウ11,12それぞれに
ついて欠陥検出のための明るさの判定レベルを別個に設
定している。Therefore, the defect 8 passes through the upper part 9 and the lower part 10 at the center of the bottle mouth and the screw part 4, and the defect 8 which is not scattered to the camera 6 by only one side is also inspected on both the upper part and the lower part 10. By doing so, the detection accuracy can be improved. Since the brightness level of the image differs between the upper side 9 and the lower side 10,
As shown in FIG. 7D, windows 11 and 12 of the effective processing range for defect detection are separately provided, and the brightness determination level for defect detection is set separately for each of the windows 11 and 12.
以上説明したように本発明は、回転しながら搬送される
びん口，ネジ部に発生するひび割れ、欠け、白色異物当
の欠陥の斜め上方のテレビカメラへ乱反射された散乱光
をテレビカメラで受光し、テレビカメラ前面の走査用ミ
ラーの反射面上に遮光板を設けて、びん口，ネジ部での
不用散乱光を除去することにより、びん口，ネジ部の全
面の欠陥を検査することを実現できる。As described above, according to the present invention, a TV camera receives scattered light diffusely reflected by a TV camera obliquely above a bottle mouth conveyed while rotating, a crack, a chip, and a defect such as a white foreign substance generated in a screw portion. By installing a light shield on the reflecting surface of the scanning mirror on the front of the TV camera and removing unnecessary scattered light at the bottle mouth and screw part, it is possible to inspect defects on the entire bottle mouth and screw part. it can.
第１図は本発明の一実施例の外観図、第２図は第１図に
示すテレビカメラ６による画像の画面例を示す図であ
る。 図において、１はびん,2は搬送方向,3は光源,4はびん
口，ネジ部、５はミラー,6はテレビカメラ,7は遮光板、
８は欠陥による画像,11,12はウインドウを示す。FIG. 1 is an external view of an embodiment of the present invention, and FIG. 2 is a diagram showing an example of a screen of an image taken by the television camera 6 shown in FIG. In the figure, 1 is a bottle, 2 is a conveying direction, 3 is a light source, 4 is a bottle mouth, a screw part, 5 is a mirror, 6 is a TV camera, 7 is a light shielding plate,
8 is an image by the defect, and 11 and 12 are windows.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 細井 富也 東京都豊島区高田３丁目24番１号 大正製 薬株式会社内 (56)参考文献 特開 昭63−314449（ＪＰ，Ａ) 特開 昭61−155942（ＪＰ，Ａ) ─────────────────────────────────────────────────── --- Continuation of the front page (72) Inventor Tomoya Hosoi, 3-24-1, Takada, Toshima-ku, Tokyo Taisho Pharmaceutical Co., Ltd. (56) Reference JP-A-63-314449 (JP, A) JP 61-155942 (JP, A)
Claims (1)
対し前後斜め約45゜上方各々から前記びんの口ネジを照
らす一対の光源を設け、該両光源の光が交差する点を含
み前記搬送方向と垂直な面上において前記口ネジの斜め
約45゜上方に前記びんの移動に追従して回転するミラー
を配置し、このミラーを介して前記びんの口のネジ部を
テレビカメラで撮影し、このテレビカメラによる画像の
前記びんの口ネジ部左右の不要散乱光による像を除去す
るための遮光板を前記ミラーに設け、前記テレビカメラ
による画像の前記びんの口ネジ部の中央部に欠陥検出の
ためのウインドウを設けたことを特徴とするびん検査装
置。1. A pair of light sources for illuminating the mouth screw of the bottle from about 45 ° obliquely forward and backward with respect to the conveying direction of the bottle conveyed while rotating, and including a point where the lights of both the light sources intersect. A mirror that rotates following the movement of the bottle is arranged about 45 ° diagonally above the mouth screw on a plane perpendicular to the conveying direction, and the screw part of the mouth of the bottle is photographed with a TV camera through this mirror. However, a light-shielding plate for removing an image of unnecessary scattered light on the left and right of the screw part of the bottle of the image by the TV camera is provided on the mirror, and the central part of the screw part of the bottle of the image by the TV camera is provided. A bottle inspection device having a window for detecting defects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8008589A JPH07104290B2 (en) | 1989-03-29 | 1989-03-29 | Bottle inspection equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8008589A JPH07104290B2 (en) | 1989-03-29 | 1989-03-29 | Bottle inspection equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02257044A JPH02257044A (en) | 1990-10-17 |
| JPH07104290B2 true JPH07104290B2 (en) | 1995-11-13 |
Family
ID=13708371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8008589A Expired - Lifetime JPH07104290B2 (en) | 1989-03-29 | 1989-03-29 | Bottle inspection equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07104290B2 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2846422B1 (en) * | 2002-10-25 | 2004-12-17 | Sgcc | DEVICE FOR LIGHTING AN ARTICLE FOR AUTOMATIC FAULT DETECTION AND INSTALLATION FOR AUTOMATIC FAULT DETECTION COMPRISING SUCH A DEVICE |
| US7626158B2 (en) | 2006-10-23 | 2009-12-01 | Emhart Glass S.A. | Machine for inspecting glass containers |
| EP1916515B1 (en) * | 2006-10-23 | 2014-09-17 | Emhart Glass S.A. | Machine for inspecting glass containers |
| US7414716B2 (en) | 2006-10-23 | 2008-08-19 | Emhart Glass S.A. | Machine for inspecting glass containers |
| JP5159237B2 (en) | 2006-10-23 | 2013-03-06 | エムハート・グラス・ソシエテ・アノニム | Equipment for inspecting glass containers |
| US8135206B2 (en) | 2007-05-02 | 2012-03-13 | Emhart Glass S.A. | Machine for inspecting glass containers |
| JP5471477B2 (en) * | 2010-01-15 | 2014-04-16 | ウシオ電機株式会社 | Thread inspection equipment |
| JP6295401B2 (en) * | 2012-12-14 | 2018-03-20 | キリンテクノシステム株式会社 | Glass bottle inspection equipment |
| CN117434075B (en) * | 2023-12-05 | 2024-04-19 | 安徽凤阳淮河玻璃有限公司 | Glass product defect detection system |
-
1989
- 1989-03-29 JP JP8008589A patent/JPH07104290B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02257044A (en) | 1990-10-17 |
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