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WO2016186018A1 - Dispositif d'inspection de contenant et procédé d'inspection - Google Patents

Dispositif d'inspection de contenant et procédé d'inspection Download PDF

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Publication number
WO2016186018A1
WO2016186018A1 PCT/JP2016/064234 JP2016064234W WO2016186018A1 WO 2016186018 A1 WO2016186018 A1 WO 2016186018A1 JP 2016064234 W JP2016064234 W JP 2016064234W WO 2016186018 A1 WO2016186018 A1 WO 2016186018A1
Authority
WO
WIPO (PCT)
Prior art keywords
container
image
illumination light
inspection apparatus
optical system
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.)
Ceased
Application number
PCT/JP2016/064234
Other languages
English (en)
Japanese (ja)
Inventor
千代子 高橋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Omron Kirin Techno System Co Ltd
Original Assignee
Kirin Techno System Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kirin Techno System Co Ltd filed Critical Kirin Techno System Co Ltd
Priority to DE112016002237.9T priority Critical patent/DE112016002237B4/de
Publication of WO2016186018A1 publication Critical patent/WO2016186018A1/fr
Priority to PH12017501890A priority patent/PH12017501890A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • 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
    • G01N21/9072—Investigating the presence of flaws or contamination in a container or its contents with illumination or detection from inside the container

Definitions

  • the present invention relates to a container inspection apparatus for detecting a container in which a defect such as adhesion of a foreign substance has occurred.
  • the lighting device arranged on the outer periphery of the bag illuminates the bag from the side, and the camera arranged on the opposite side across the lighting device
  • an inspection apparatus that captures an image by transmitted light of the eyelid
  • a residual liquid inspection apparatus for a sputum an inspection apparatus that illuminates a sputum from the bottom side and captures an image of the inside of the sputum observed from the mouth of the sputum is known (for example, see Patent Document 2).
  • Patent Document 2 The inspection apparatus of Patent Document 2 is intended for residual liquid inspection in the first place, but the illumination light is incident from the outer periphery to the trunk of the bag, and the transmitted light of the trunk is incident on the camera. Even if a foreign matter adheres to the inner wall of the body portion or a defect has occurred, the same problem as in Patent Document 1 occurs with respect to the detection.
  • an object of the present invention is to provide a container inspection apparatus and the like that can improve the reliability of inspection of defects such as adhesion of foreign matters to the inner wall of the container and occurrence of defects.
  • the illumination light enters the container to be inspected from the bottom side of the container and is guided into the trunk part, and the incidence of the illumination light from the outer surface of the trunk part is limited.
  • the illumination light enters the body to be inspected from the bottom side of the container and is guided into the body part, and the incidence of the illumination light from the outer surface of the body part is limited.
  • the illumination light incident from the bottom of the container and guided to the body is totally reflected on the boundary surface between the body and the outside thereof, or is reflected in a state close to this, while being appropriately positioned on the container inner wall.
  • the image of the inner wall of the container based on the emitted light beam is taken by the photographing means.
  • the inner wall of the trunk portion is projected as an image with almost uniform brightness.
  • the light emitted from the inner wall of the body part is refracted by the foreign object, and thereby the foreign object is projected as a dark part whose brightness is clearly lower than the surroundings.
  • the refraction of light emitted from the inner wall is disturbed, and the defect is projected as a dark part.
  • the illuminating unit may include a light source and a light guide unit that adjusts a diffusion direction of illumination light emitted from the light source to a direction incident on the bottom.
  • the light emission surface of the said illumination means may be set smaller than the external shape of the said bottom part. According to these forms, it is possible to appropriately limit the incidence of illumination light from the outer periphery of the body portion of the container.
  • the photographing unit may include an optical system, and the position of the entrance pupil of the optical system may be biased toward the container as a subject with respect to the tip of the optical system. According to this, even when the tip of the optical system is arranged away from the top surface of the mouth of the container, a relatively large viewing angle when observing the inner wall of the container with reference to the position of the entrance pupil is ensured. The inner wall of the trunk can be photographed in a wider range and larger. Since it is not necessary to insert the optical system into the container, when the inspection device is installed on the container conveyance line, the inspection of each container can be efficiently advanced.
  • the imaging means may be arranged so that the position of the entrance pupil of the optical system enters the container more than the top surface of the mouth of the optical system. According to this, the inner wall of the body part of the container can be photographed in a wider range and larger.
  • FIG. 3 is a diagram illustrating an example of an image obtained by photographing the same candy as FIG. 2 with no candy wrapper attached thereto using the inspection apparatus of FIG. 1.
  • FIG. 1 shows an overall configuration of a container inspection apparatus according to an embodiment of the present invention.
  • a container inspection apparatus 10 in FIG. 1 includes an illuminator 11 serving as an illuminating device disposed below a bottom 2 of a basket 1 that is an example of a container to be inspected, and a mouth of the basket 1. 3 is provided with a photographing unit 12 as a photographing means disposed so as to face the mouth 3 above the three.
  • drum 4 of the collar 1 is a cylindrical shape with a substantially constant diameter.
  • the illuminator 11 includes a light source 13 such as a white LED and a prism sheet (light guide unit) 14 that adjusts the diffusion direction of illumination light emitted from the light source 13.
  • the light emitting surface 11 a of the illuminator 11, that is, the light emitting portion on the upper surface of the illuminator 11 covered with the prism sheet 14 is set to be smaller than the outer shape of the bottom portion 2 of the ridge 1 (the shape of the outer edge portion of the bottom portion 2). That is, the light emitting surface 11a has a size included in the bottom part 2.
  • the prism sheet 14 is configured so that the total luminous flux of the illumination light emitted from the illuminator 11 is incident on the bottom 2 of the bowl 1 and the illumination light is not incident on the outer surface of the body 4 of the bowl 1. Limit the diffusion direction.
  • the photographing unit 12 includes a camera 15 and a lens 16.
  • the camera 15 converts an optical image of a subject into an electronic image signal using a solid-state image sensor such as a CCD image sensor, and outputs the image signal.
  • the lens 16 forms an image of the light beam emitted from the ridge 2 on the imaging surface of the camera 15.
  • the optical axis of the lens 16 is coaxial with the center line of the eyelid 1 to be inspected.
  • the light flux F emitted from the bottom 2 and the body 4 of the heel 1 and incident on the lens 16 is once converged at a point X on the optical axis that is further away from the tip of the lens 16 toward the heel 1 as shown in FIG. Then, the light enters the lens 16.
  • the point X corresponds to the position of the entrance pupil of the lens 16.
  • the lens 16 is arranged so that the position X of the entrance pupil slightly enters the interior of the eyelid 1 rather than the top surface of the mouth 3.
  • an image obtained by observing the inner wall of the trunk 4 of the heel 1 is photographed through the lens 16 even when the lens 16 is arranged at a position away from the mouth 3. be able to.
  • the viewing angle ⁇ when photographing the inside of the bag 1 can be secured relatively large, an image in which the inside of the bag 1 is captured in a wider range and larger can be shot by the camera 15.
  • the tip of the lens 16 is spaced above the mouth 3 of the heel 1, for example, when the inspection apparatus 10 is installed on a line on which the heel 1 is conveyed, the lens is attached to the inside of each heel 1. There is no need to put in and out, and the inspection can proceed efficiently.
  • the entire luminous flux of the illumination light from the illuminator 11 is made incident from the bottom 2 of the basket 1.
  • a part of the light beam incident on the bottom part 2 is transmitted through the bottom part 2 and guided to the lens 16, while the other part of the light beam is transmitted from the bottom part 2 to the body part 4.
  • the refractive index of the body part 4 is larger than the refractive index of the air layer inside and outside the bag 1
  • the illumination light guided to the body part 4 is connected to the inner wall of the body part 4 as indicated by an arrow Y in FIG.
  • the light is reflected at the boundary surface with the outside of the body part 4 in a state of total reflection or close to it, and is emitted toward the lens 16 from an appropriate position on the inner wall of the body part 4.
  • the image output from the camera 15 can be used for inspection by an appropriate method.
  • the image signal acquired by the camera 15 is guided to the image processing unit 20, and after image processing such as contrast adjustment is performed by the image processing unit 20, the processed image signal is You may output to the determination part 21 and may determine the presence or absence of the dark part corresponded to a foreign material.
  • an image obtained by the processing of the image processing unit 20 may be output to a monitor, and the user of the inspection apparatus 10 may visually determine the presence or absence of a foreign object.
  • the image signal output from the camera 15 can be used for inspection by an appropriate method used for image inspection as long as a dark portion corresponding to a foreign object can be detected.
  • FIG. 2 is an example of an image obtained by photographing the inside of the bag 1 with the candy wrapper attached as the foreign object 6 to the inner wall of the body part 4 with the inspection device 10, and FIG. 3 is the same bag without the foreign object 6.
  • photographed 1 is shown.
  • the bag 1 used for the inspection has a printed matter such as a label provided on the outer surface of the body portion 4.
  • the body part 4 is projected as a ring-shaped region having almost uniform brightness.
  • the shadow of the printed material on the outer surface of the body 4 is not found in the image of the body 4.
  • the foreign matter 6 is clearly projected as a dark part in the B part. Comparing these figures, by using the inspection apparatus 10 of the present embodiment, the foreign matter 6 can be detected easily and reliably using the difference in brightness in the image without being affected by the printed matter on the outer surface of the bag 1. I understand that I can do it.
  • FIG. 4 shows, as a comparative example, the light emitting surface 11a of the illuminator 11 in the inspection apparatus 10 of FIG. 1 is expanded to the outside of the bottom portion 2, and the light beam emitted from the outer peripheral portion of the illuminator 10 It is the image which image
  • FIG. 4 when the incidence of illumination light from the outer surface is not limited, as shown in part C, the shadow of the printed matter on the outer surface of the bag 1 is reflected and ignored in the brightness of the image of the body part 4 Unusable variation occurs. Therefore, as shown in part B of FIG.
  • the present invention is not limited to the embodiment described above, and can be carried out in a mode in which appropriate modifications or changes are made.
  • the light emitting surface 11a of the illuminator 11 is made smaller than the outer shape of the bottom portion 2 of the ridge 1 and is limited by the prism sheet 14 in order to limit the incidence of illumination light from the outer surface of the body portion of the ridge 1.
  • the diffusion direction of the illumination light is limited, the incidence of the illumination light from the outer surface of the trunk portion may be limited by adopting only one of the configurations.
  • the diffusion direction of the light beam emitted from the region located outside the bottom portion is limited to the direction not incident on the outer surface of the trunk portion by the light guide plate.
  • the light emitting surface may have an appropriate shape such as a circular shape, a rectangular shape, or a polygonal shape, and an illumination unit having an annular light emitting surface may be used.
  • the light guide unit for limiting the diffusion direction is not limited to a plate-like form such as a prism sheet, and the light guide unit may be configured using various optical materials such as a lens, a mirror, a prism, and the like.
  • the incidence of illumination light from the outer surface of the bag is affected by elements with different optical characteristics, such as printed matter, on the outer surface of the bag. As long as it is limited within a range that does not occur, the illumination light from the outer surface may be allowed to enter as long as it is within the range.
  • the photographing means in which the entrance pupil of the lens 16 is biased toward the subject side with respect to the tip of the lens 16 is used.
  • the inner wall of the body of the container such as the bag 1 is looked into from the mouth.
  • the photographing means can be changed as appropriate. It is also possible to use imaging means in which an entrance pupil is present in the lens. Or you may image
  • the optical system is not limited to a lens, and various optical elements such as a mirror, a prism, and the like may be used, and the position of the entrance pupil of the optical system is also biased toward the subject side with respect to the tip of the optical system using various optical elements. It is possible to set the position.
  • the illuminating means is not limited to the example in which the illuminator 11 is disposed so as to face the bottom portion 2 of the ridge 1, but may be configured to guide the illumination light of the illuminator so as to enter the bottom portion 2 by the reflection optical system.
  • the photographing means is not limited to the example in which the photographing unit 12 is disposed so as to face the mouth 3 of the bag 1, and a lens or camera serving as the photographing means is reflected by a reflection optical system. It may be configured to lead to
  • the heel having a cylindrical body is the inspection object.
  • the non-circular moth having a cross-sectional shape of the body may be the inspection object of the present invention.
  • a container is not limited to what is called with the name of a bag, but if it is a container of the form which has a bottom part, a mouth part, and a trunk
  • a container made of an appropriate material such as glass or plastic may be the inspection object.
  • the illumination light is not limited to the wavelength in the visible range, and illumination light in the wavelength range outside the visible range may be used.

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  • 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

L'invention concerne un dispositif d'inspection de contenant (10) qui comprend : un illuminateur (11) (10) qui éclaire un contenant qui est l'objet d'inspection, par exemple une bouteille (1), de telle sorte que la lumière d'éclairage est rendue incidente à partir du côté partie inférieure (2) de la bouteille (1) et guidée dans la partie de corps (4) et l'incidence de la lumière d'éclairage provenant de la surface extérieure de la partie de corps (4) étant restreinte ; et une unité d'imagerie (12) qui prend une image d'observation de la paroi interne de la partie de corps (4) à partir de la partie goulot (3) de la bouteille (1).
PCT/JP2016/064234 2015-05-19 2016-05-13 Dispositif d'inspection de contenant et procédé d'inspection Ceased WO2016186018A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE112016002237.9T DE112016002237B4 (de) 2015-05-19 2016-05-13 Behälterinspektionsvorrichtung und Verfahren zur Behälterinspektion
PH12017501890A PH12017501890A1 (en) 2015-05-19 2017-10-18 Container inspection device and inspection method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015-101605 2015-05-19
JP2015101605A JP6518911B2 (ja) 2015-05-19 2015-05-19 容器検査装置及び検査方法

Publications (1)

Publication Number Publication Date
WO2016186018A1 true WO2016186018A1 (fr) 2016-11-24

Family

ID=57320096

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2016/064234 Ceased WO2016186018A1 (fr) 2015-05-19 2016-05-13 Dispositif d'inspection de contenant et procédé d'inspection

Country Status (4)

Country Link
JP (1) JP6518911B2 (fr)
DE (1) DE112016002237B4 (fr)
PH (1) PH12017501890A1 (fr)
WO (1) WO2016186018A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230288344A1 (en) * 2020-07-13 2023-09-14 Krones Ag Apparatus and method for inspecting containers
IT202200025362A1 (it) * 2022-12-12 2024-06-12 Marco Lottici Dispositivo per l'ispezione interna di un contenitore
CN119757405A (zh) * 2024-12-25 2025-04-04 江苏康特玻璃科技有限责任公司 一种玻璃杯内表面缺陷检测装置

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018126865A1 (de) * 2018-10-26 2020-04-30 Krones Ag Vorrichtung und Verfahren zum Inspizieren von Behältnissen
DE102020130939B4 (de) * 2020-11-23 2024-05-16 Krones Aktiengesellschaft Verfahren und Vorrichtung zum Inspizieren von Behältnissen mit Staubeinblasung
DE102021109287A1 (de) 2021-04-14 2022-10-20 Krones Aktiengesellschaft Vorrichtung und Verfahren zum Inspizieren von Dosen
DE102023117655A1 (de) 2023-07-04 2025-01-09 Krones Aktiengesellschaft Vorrichtung und Verfahren zur Seitenwandinspektion von Pulpebehältern

Citations (4)

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Publication number Priority date Publication date Assignee Title
JPS61207952A (ja) * 1985-03-12 1986-09-16 Hajime Sangyo Kk 透明材よりなるビンの欠陥検査方法
JPS63174053U (fr) * 1987-08-12 1988-11-11
JPH01213558A (ja) * 1988-02-22 1989-08-28 Ishizuka Glass Co Ltd ガラス壜の底面検査装置
JP2006084481A (ja) * 2005-12-12 2006-03-30 Sukiyan Technol:Kk 空瓶の検査システム

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DE3029678C2 (de) * 1980-08-01 1984-03-22 Siemens AG, 1000 Berlin und 8000 München Anordnung zur optisch-elektronischen Ermittlung von Verunreinigungen im Bodenbereich von transparenten Behältern
US4943713A (en) * 1987-11-27 1990-07-24 Hajime Industries Ltd. Bottle bottom inspection apparatus
NL8802933A (nl) 1988-11-28 1990-06-18 Heuft Qualiplus Bv Werkwijze en inrichting voor het inspekteren van de binnenwand van een lichaam.
SE509009C2 (sv) * 1996-06-27 1998-11-23 Plm Ab Återfyllbar behållare med transparent bottenparti som inspekteras genom genomlysning
JP2003215057A (ja) 2001-11-15 2003-07-30 Matsushita Electric Works Ltd 容器の異物検出方法および装置
JP5017617B2 (ja) 2007-11-06 2012-09-05 キリンテクノシステム株式会社 ボトルの残液検査方法
DE102012016342A1 (de) * 2012-08-20 2014-05-15 Khs Gmbh Behälterinneninspektion von unten durch den Boden hindurch

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61207952A (ja) * 1985-03-12 1986-09-16 Hajime Sangyo Kk 透明材よりなるビンの欠陥検査方法
JPS63174053U (fr) * 1987-08-12 1988-11-11
JPH01213558A (ja) * 1988-02-22 1989-08-28 Ishizuka Glass Co Ltd ガラス壜の底面検査装置
JP2006084481A (ja) * 2005-12-12 2006-03-30 Sukiyan Technol:Kk 空瓶の検査システム

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230288344A1 (en) * 2020-07-13 2023-09-14 Krones Ag Apparatus and method for inspecting containers
IT202200025362A1 (it) * 2022-12-12 2024-06-12 Marco Lottici Dispositivo per l'ispezione interna di un contenitore
CN119757405A (zh) * 2024-12-25 2025-04-04 江苏康特玻璃科技有限责任公司 一种玻璃杯内表面缺陷检测装置

Also Published As

Publication number Publication date
PH12017501890B1 (en) 2018-03-05
PH12017501890A1 (en) 2018-03-05
DE112016002237B4 (de) 2024-05-08
JP6518911B2 (ja) 2019-05-29
JP2016217825A (ja) 2016-12-22
DE112016002237T5 (de) 2018-02-15

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