WO2008104273A1 - Procédé et dispositif d'inspection permettant de contrôler des récipients - Google Patents

Procédé et dispositif d'inspection permettant de contrôler des récipients Download PDF

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Publication number
WO2008104273A1
WO2008104273A1 PCT/EP2008/001032 EP2008001032W WO2008104273A1 WO 2008104273 A1 WO2008104273 A1 WO 2008104273A1 EP 2008001032 W EP2008001032 W EP 2008001032W WO 2008104273 A1 WO2008104273 A1 WO 2008104273A1
Authority
WO
WIPO (PCT)
Prior art keywords
container
image
topology
processing unit
image processing
Prior art date
Application number
PCT/EP2008/001032
Other languages
German (de)
English (en)
Inventor
Herbert Menke
Martin Weisgerber
Tammo Zorn
Guido Sommer
Original Assignee
Khs Ag
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 Khs Ag filed Critical Khs Ag
Publication of WO2008104273A1 publication Critical patent/WO2008104273A1/fr

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84Systems specially adapted for particular applications
    • G01N21/88Investigating the presence of flaws or contamination
    • G01N21/90Investigating the presence of flaws or contamination in a container or its contents
    • G01N21/909Investigating the presence of flaws or contamination in a container or its contents in opaque containers or opaque container parts, e.g. cans, tins, caps, labels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07CPOSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/34Sorting according to other particular properties
    • B07C5/3404Sorting according to other particular properties according to properties of containers or receptacles, e.g. rigidity, leaks, fill-level
    • B07C5/3408Sorting according to other particular properties according to properties of containers or receptacles, e.g. rigidity, leaks, fill-level for bottles, jars or other glassware
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00Measuring arrangements characterised by the use of optical techniques
    • G01B11/24Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/284Electromagnetic waves
    • G01F23/292Light, e.g. infrared or ultraviolet
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84Systems specially adapted for particular applications
    • G01N2021/8411Application to online plant, process monitoring
    • G01N2021/8416Application to online plant, process monitoring and process controlling, not otherwise provided for
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84Systems specially adapted for particular applications
    • G01N21/88Investigating the presence of flaws or contamination
    • G01N21/8851Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
    • G01N2021/8854Grading and classifying of flaws
    • G01N2021/8861Determining coordinates of flaws
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06VIMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V2201/00Indexing scheme relating to image or video recognition or understanding
    • G06V2201/06Recognition of objects for industrial automation

Definitions

  • the invention relates to a method for the examination of containers of all kinds, such as bottles or cans for receiving goods of all kinds, especially bottles or cans for holding drinks, which at least one container image is generated by means of at least one container receiving device and analyzed in a connected image processing unit ,
  • Such methods and associated inspection devices for containers, in particular bottles, are known from practice and are otherwise described in the two documents DE 10 2005 017 957 A1 and DE 103 22 459 B3.
  • a container receiving device usually comes at this point a camera used.
  • an associated image processing software ultimately makes sure that the inspection device downstream is subject to downstream sorting and / or discharge devices based on predetermined criteria.
  • bottles with different contours and / or those with labels of label-free bottles can be separated (see DE 103 22 459 B3, section [0031]).
  • the prior art uses the container image or image processing only to make a SoI I / I st- comparison and to classify the associated containers or bottles in ultimately acceptable and unacceptable units.
  • the unacceptable units or containers or bottles are logically sorted out.
  • the described procedure for error analysis is unsuitable. That is, the discharged bottles or containers do not give a detailed conclusion about why they were sorted out and whether and where an upstream error occurs in the bottle treatment.
  • the invention aims to provide a total remedy.
  • the invention is based on the technical problem of further developing such a method so that errors occurring in the container, or errors which arise as a result of a preceding treatment step, are taken into account in bottle treatment.
  • an associated inspection device should be specified.
  • a generic method is characterized in that the container image is evaluated for the measurement including, where appropriate, color / symbol analysis of the associated container topology.
  • the container image is not used primarily for a target / actual comparison for bottle ejection. Rather, the container image serves to measure the container topology as completely as possible and not only qualitatively in the sense of "good / bad", but in particular to capture quantitatively.
  • the container topology in the context of the invention means all optical and geometric properties of the container to be examined, in particular its length, size and diameter. But the seat, the location and attachment of additional aggregates such as closures, labels, etc. falls under this.
  • the container topology the level of a filled liquid, the color of the bottle, the color of the filled liquid or the color of labels, any symbols, etc.
  • the container topology and the lateral surface of the container and / or Contour or shape of the container with regard to any irregularities measured and examined.
  • Such irregularities can be attributed, for example, to damage, imperfections in the container material, cracks, dents, etc., which are measured quantitatively in the context of the invention, like the container properties already described.
  • the position and orientation of the label is documented as part of the survey of the container topology, for example, also by the swept angle range between transverse edges of the label and the height profile of the associated longitudinal edges relative to the base.
  • a closure can be characterized in the examination of the container topology characterized in that the height profile of its upper and lower edge of the cover relative to the base surface and also, for example, the distance of the lower edge of the cover of individual threads of a screw thread are measured. As a result, any damage can be clearly assigned to a specific position on the bottle.
  • the exact position of the label can be derived, for example, in terms of its height position relative to the base as well as in terms of any inclinations.
  • the seat of the closure can be checked based on the container data, namely, whether a possible oblique seat is present, a matching retaining ring is present, etc ..
  • the invention optionally wins further container data by an optical measurement of the container topology resulting from the color / symbol analysis of the container image.
  • the color analysis of the container image not only the color or base color of the container and / or the liquid filled can be detected and optionally checked, but it can of course also deviations from the base color individual container areas geometrically assign.
  • the color analysis of the container image allows a virtually faithful reproduction and reproduction of a colored label, a closure, an associated imprint etc ..
  • These individual color information can be assigned within the scope of the survey performed according to the associated container topology clearly individual positions on the container or its lateral surface become.
  • a symbol analysis may be added or substituted.
  • the container image or the associated container topology is measured with respect to symbols located on the container. These symbols may be printed graphic symbols as label replacement or addition. Usually, however, the symbols are embodied as letter / number combinations and represent, for example, the expiration date applied to the container.
  • the symbol analysis is now carried out, for example, by converting the letter / number sequence into corresponding container data in the sense of text recognition.
  • the aforementioned container data can also be flanked with position data which reflect the position, extent and optionally color of the examined symbols.
  • the container data not only include geometric information about the size, shape, surface finish, etc. of the container per se, but also in the image recording upstream treatment routines on or on the container additionally mounted units and their characteristics, position and seat are checked.
  • These aggregates include, for example, labels and closures.
  • the respective label can be measured not only in size and location on the respective container, but also allows the additional color / symbol analysis, the inclusion of container data, which reflect the measured color design and any symbols.
  • any additional symbols, character or font codes, durability data, etc. applied to the container can also be measured as part of a symbol analysis and converted into associated container data.
  • This container data thus reflects, for example, the information determined in the sense of text recognition (eg OCR, Optical Character Recognition) and their relative position on the container. That is, the container data draw a comprehensive geometric and possibly color and symbolically accurately measured image of the container topology of the examined container.
  • the invention is also provided to check the partial results of the inspection with respect to their common occurrence in a single container. So it becomes e.g. allows to automatically check that the color of the contents matches the one on the bottle and that the best before date on the bottle or label is the current date and the known minimum shelf life of the product being bottled.
  • container data resulting from the survey of the container topology, and consequently the container can now be advantageously related to one or more upstream handlers. That is, the comprehensive measurement of the associated container topology based on the recorded container image usually leads to the fact that the container image in question or the container data and the associated container are each individualized. In other words, the container data can be uniquely assigned to a single container image and thus the associated individual container.
  • any exemplary errors which are stored in the container data can be precisely assigned to an associated treatment routine or a corresponding treatment system, more precisely even to a single treatment station within one Assign determined treatment plant. So z. For example, specify which filling valve a tuned container was filled, or on which turntable a particular container was positioned during labeling.
  • the individual treatment routines or associated treatment systems are generally monitored and controlled by a common control unit, which according to the invention cooperates with the image processing unit in such a way that any anomalies of the container topology resulting from the container data can be clearly assigned to an associated treatment facility. It image processing unit and control unit may also be combined into one unit.
  • the container data of a particular container resulting from the survey of the container topology allow the conclusion that the filling level is insufficient.
  • the control unit about the transport of the container in question, in particular the elapsed time from a filling system to the image recording, it is now possible to deduce which of the individual filling valves of a filling machine is responsible for the underfilling described.
  • the determined filling valve may close too early or have a different malfunction.
  • the invention proposes to combine the container data of respective containers to container data pools.
  • container data pools can be formed according to predetermined criteria, for example, according to the date of image acquisition, the manufacturer of the container, the container material used, the auxiliary equipment used (closure, label, etc.) etc.
  • These container data pools can now be - as well as the respective single image - save and analyze specially.
  • the respective container image or the container data pool can be transmitted to an optionally removed diagnostic unit.
  • the container data in question can then be transmitted to the manufacturer of the bottle treatment plant, which may be located remotely from it.
  • Conventional transmission paths for example wireless or wired (via Internet, telephone line, etc.), are suitable for the transmission.
  • the manufacturer of the bottle treatment plant with the aid of the diagnostic unit is able to analyze the individual container images to the extent in which the upstream treatment routines or treatment facilities may be faulty and can teach the user accordingly or take targeted countermeasures. Such a remote evaluation of errors was previously not possible.
  • the described analysis can not only be offset in position, but also be performed with a time delay, for example even years later. This allows the manufacturer of the bottle treatment plant a complete documentation of the filled containers and in particular the answer to the question of whether any errors in the container treatment to later occurring Impaired or not. As a result, consumer safety as well as process reliability and system availability are increased enormously and a complete history of the respective treated containers - even after years and their consumption - can be made available.
  • the image processing unit can classify the individual containers on the basis of their respective examined container image taking into account one or more specifications and possibly eject them. For example, it is conceivable to dispose of a certain number of containers for laboratory examinations according to specific specifications or at specific time intervals. Or, targeted investigations are made that relate to specific changes in the container material.
  • the invention also provides an inspection device for containers, which is advantageous but not restrictive for carrying out the method described and is described in claim 8.
  • Advantageous embodiments of this inspection device are the subject matter of claims 9 and 10.
  • the container data are stored in total, they are also locally and temporally independent and virtually unlimited available. This is the Possibility to detect errors in the treatment plant for the containers also by remote diagnosis and to initiate countermeasures. In addition, a complete history can be substantiated in order to be able to verify or rule out any errors and subsequent health problems, etc. that occur. Here are the main benefits.
  • FIGURE shows a container inspection device according to the invention schematically.
  • an inspection device for containers in this case for bottles 1.
  • the said bottle 1 has been filled with a liquid 2 to a certain level in an upstream treatment routine in a filling plant.
  • the bottle 1 a in the context of a likewise upstream treatment routine applied by means of a labeling not shown label 3.
  • the bottle 1 has an indicated closure 4, which was mounted in a capping.
  • the inspection device and the described upstream treatment plants (filling plant, capping plant and labeling plant) together form essential parts of a bottle treatment line or plants.
  • the three-dimensional container frame or, in general, the container image is now analyzed in the image processing unit 6.
  • the image processing unit 6 is set up to measure the associated container topology, as has already been described in the introduction.
  • the container frame or the individual container images are measured, among other things also in such a way that the required dimensions as real actual dimensions, ie as a numerical value be determined.
  • a measurement of a length L of the bottle 1, the diameter D, and any variations in diameter is determined to be 160.34 mm and the diameter D to be 44.70 mm.
  • the size and position of the label 3 is determined by the extension of the label 3 is measured over an indicated angle range of about 110 ° in the example between transverse edges.
  • the course of the lower and upper longitudinal edges of the label 3 with respect to a base G is detected on the basis of the container data.
  • the illustrated inspection device is integrated in total in the described container treatment plant or bottle treatment plant, with several treatment routines and logically also treatment facilities are upstream, such as the already mentioned labeling, one or more fillers filler for filling the liquid, the Verschelleerstrom for mounting the Closure 4 etc.
  • control unit 7 controls the questionable and upstream and optionally downstream additional treatment plants and specifies the speed of associated and not shown conveyor belts, can be deduced from the distance of the respective treatment plant and the speed of each guided through the container treatment plant containers or bottles 1 in each section which labeling unit has not worked properly in the example, so that it has come to the skew of the label 3 shown in the figure.
  • the speed V of the container or bottle 1 examined from the labeling unit in question up to the inspection device can be multiplied by the time difference of the labeling time t compared to the image acquisition time T, by the distance or the local position or the path S of the Inspection device back to the error producing labeling unit in the sense of
  • the image processing unit 6 is still associated with a memory 8. This may be an internal or external memory 8.
  • the container data or the container data pools already described in the introduction are stored in this memory 8.
  • the image processing unit 6 in conjunction with the control unit 7 can classify individual containers or bottles 1 based on the container data or the respectively examined associated container image taking into account one or more specifications and possibly eject them.
  • the individual containers or bottles 1 are identified and are the control unit 7 corresponding Ausschleus- / sorting commands to a inspection device downstream Ausschleus- / sorting.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Image Analysis (AREA)

Abstract

L'invention concerne un procédé et un dispositif d'inspection permettant de contrôler des récipients, en particulier des bouteilles (1). Selon ledit procédé, au moins une image de récipient est obtenue à l'aide d'au moins un dispositif de prise de vue de récipient (5) et analysée dans une unité de traitement d'image (6) reliée audit dispositif. Selon l'invention, l'image de récipient est évaluée à des fins de mesure de la topologie associée du récipient.
PCT/EP2008/001032 2007-03-01 2008-02-12 Procédé et dispositif d'inspection permettant de contrôler des récipients WO2008104273A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007010018.5 2007-03-01
DE102007010018A DE102007010018A1 (de) 2007-03-01 2007-03-01 Verfahren und Inspektionsvorrichtung zur Untersuchung von Behältern

Publications (1)

Publication Number Publication Date
WO2008104273A1 true WO2008104273A1 (fr) 2008-09-04

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DE (1) DE102007010018A1 (fr)
WO (1) WO2008104273A1 (fr)

Cited By (5)

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Publication number Priority date Publication date Assignee Title
WO2015128245A1 (fr) * 2014-02-25 2015-09-03 Khs Gmbh Dispositif d'inspection
EP2989791A1 (fr) 2013-04-22 2016-03-02 Pressco Technology, Inc. Technique d'analyse de bouchon
US10591421B1 (en) 2014-02-25 2020-03-17 Khs Gmbh Beverage bottle handling device for handling beverage bottles and similar containers in a beverage bottling or container filling plant
CN113740349A (zh) * 2021-11-05 2021-12-03 深圳市兴盛达橡塑制品有限公司 一种成品塑胶制品用的在线视觉检测组件
DE102022131452A1 (de) 2022-11-29 2024-05-29 Khs Gmbh Behälterbehandlungsanlage und Verfahren zum Behandeln von Behältern

Families Citing this family (3)

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DE102009035924A1 (de) * 2009-08-03 2011-02-10 Krones Ag Vorrichtung und Verfahren zum Überprüfen eines Etiketts auf einem Etikettenträger
CN108106593A (zh) * 2017-12-21 2018-06-01 广州市大岳智能设备有限公司 一种瓶胚外壁均匀性检测装置
CN108168424A (zh) * 2017-12-21 2018-06-15 广州市大岳智能设备有限公司 一种瓶胚内壁均匀性检测装置

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EP1494010A1 (fr) * 2003-06-30 2005-01-05 Emhart Glass S.A. Appareil pour inspecter le code de talon d'un conteneur

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DE10322459B3 (de) 2003-05-16 2004-11-11 Krones Ag Inspektionsvorrichtung für Flaschen
DE102005017957A1 (de) 2005-04-18 2006-10-26 Khs Ag Inspektionsvorrichtung

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EP1494010A1 (fr) * 2003-06-30 2005-01-05 Emhart Glass S.A. Appareil pour inspecter le code de talon d'un conteneur

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2989791A1 (fr) 2013-04-22 2016-03-02 Pressco Technology, Inc. Technique d'analyse de bouchon
WO2015128245A1 (fr) * 2014-02-25 2015-09-03 Khs Gmbh Dispositif d'inspection
US20170132776A1 (en) * 2014-02-25 2017-05-11 Jürgen-Peter Herrmann Compact inspection device for inspecting containers such as bottles in a container filling plant
US10591421B1 (en) 2014-02-25 2020-03-17 Khs Gmbh Beverage bottle handling device for handling beverage bottles and similar containers in a beverage bottling or container filling plant
EP3110701B1 (fr) 2014-02-25 2020-04-01 KHS GmbH Dispositif d'inspection de recipients
CN113740349A (zh) * 2021-11-05 2021-12-03 深圳市兴盛达橡塑制品有限公司 一种成品塑胶制品用的在线视觉检测组件
DE102022131452A1 (de) 2022-11-29 2024-05-29 Khs Gmbh Behälterbehandlungsanlage und Verfahren zum Behandeln von Behältern
EP4378879A1 (fr) 2022-11-29 2024-06-05 KHS GmbH Installation de traitement de récipients et procédé de traitement de récipients

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