EP1628241A1 - Device for detecting structures, such as profiles or stampings, on bodies of bottles or similar containers - Google Patents

Device for detecting structures, such as profiles or stampings, on bodies of bottles or similar containers Download PDF

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Publication number
EP1628241A1
EP1628241A1 EP05014977A EP05014977A EP1628241A1 EP 1628241 A1 EP1628241 A1 EP 1628241A1 EP 05014977 A EP05014977 A EP 05014977A EP 05014977 A EP05014977 A EP 05014977A EP 1628241 A1 EP1628241 A1 EP 1628241A1
Authority
EP
European Patent Office
Prior art keywords
container
axis
luminescent screen
screen
camera
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
Application number
EP05014977A
Other languages
German (de)
French (fr)
Other versions
EP1628241B1 (en
Inventor
Wolfgang Dr. Rer. Nat. Hartig
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.)
KHS AG
Original Assignee
KHS GmbH
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
Priority to DE102004040164A priority Critical patent/DE102004040164A1/en
Application filed by KHS GmbH, KHS AG filed Critical KHS GmbH
Publication of EP1628241A1 publication Critical patent/EP1628241A1/en
Application granted granted Critical
Publication of EP1628241B1 publication Critical patent/EP1628241B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65CLABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
    • B65C9/00Details of labelling machines or apparatus
    • B65C9/40Controls; Safety devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65CLABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
    • B65C9/00Details of labelling machines or apparatus
    • B65C9/06Devices for presenting articles in predetermined attitude or position at labelling station
    • B65C9/067Devices for presenting articles in predetermined attitude or position at labelling station for orienting articles having irregularities, e.g. holes, spots or markings, e.g. labels or imprints, the irregularities or markings being detected

Abstract

A device for detecting structures, such as profiling or embossing, on bodies of bottles or the like container (2) is characterized by a at a detection position on one side of a transport path (3) provided for the container luminescent screen (5) to a at least one axis of curvature concavely curved, the detection position facing and emitting light emitting surface (6.1) forms, as well as by at least one electronic camera (7), which is provided with its optics in the field of the phosphor screen (5), namely for generating a camera image with the on the body of the container reflected light from the screen.

Description

  • The invention relates to a device according to the preamble of claim 1.
  • Especially in bottles for drinks, it is known to profile the respective bottle body on its outer surface in a certain way in relief or provided with imprints. After filling and closing, such a bottle is then labeled so that the respective label optimally fits into the appearance of the bottle, as determined by the profiling or embossing, and for this purpose is applied to an intended surface of the bottle body. To achieve this, it is necessary to align the bottles for labeling with their embossing or profiling in a specific target orientation.
  • The object of the invention is to provide a device with which it is possible to detect the bodies or bottles of the like. Profiles or embossments reliable and non-contact. To solve this problem, a device according to the patent claim 1 is formed.
  • In the device according to the invention, the at least one sensor element is preferably an electronic camera with which a camera image is generated, which corresponds to the illuminated surface of the luminescent screen which is reflected on the outer surface of the respective container. At smooth trained surface areas of the container of the screen in the camera image is bright again. Embossments in the container wall and, in particular, transitions or edges formed by profilings or embossings appear in the camera image as dark areas or dark transitions. Taking into account the actual formation of the respective container or the actual formation of the profilings or embossings on the container outer surface and the number and assignment of dark areas or transitions in the camera image then the actual orientation (actual orientation) of the respective container at a detection position and the deviation be determined by a desired orientation, for example, to generate a control signal, with which then the respective container is brought by rotating about its container axis in the desired orientation. Other structures on the container wall can be detected with the device according to the invention.
  • Instead of a camera, another opto-electric sensor device optically scanning the respective container can also be used.
  • Further developments of the invention are the subject of the dependent claims. The invention will be explained in more detail below with reference to the figures of an embodiment.
  • Show it:
  • Fig. 1 and 2
    in a simplified schematic representation in plan view and in rear view of a device for detecting structures, namely profiling or embossing of bottles.
  • The device generally designated 1 in the figure is used for the opto-electronic detection and evaluation of structures or imprints on bottles 2 and is for example part of a station in which the bottles 2 for a subsequent labeling with respect to a conveying direction (arrow A) be aligned by turning it around its vertical bottle axis.
  • The bottles 2 are moved past the device 1 on a conveyor in the conveying direction A. The conveyor is, for example, a linear conveyor which forms a straight-line transport path 3 for the bottles 2, or a rotary table driven peripherally around a vertical machine axis, which has stand surfaces for the bottles 2 at its periphery and a circular transport path 4 for the bottles 2 forms.
  • The device 1 is u.a. from a luminescent screen 5 with a luminescent screen element 6, which in the illustrated embodiment has a circular cylindrical shape on its inside 6.1 and on its outside 6.2 and extends over the entire height H and length of the luminescent screen 5. The luminescent screen 5 is arranged on one side of the respective transport path 3 or 4, specifically in the case of the circular transport path 4 of the rotary table outside this transport path and laterally from the rotary table.
  • The vertical axis of curvature LSA of the screen element 6 intersects the respective transport path 3 or 4, on which the bottles 2 move with their bottle axis. Furthermore, the screen element 6 is oriented so that the bottle 2, which is located in the detection position shown in Figure 1, with its axis is arranged coaxially with the axis of curvature LSA.
  • The luminescent screen 5 has in the vertical direction, ie in the axial direction perpendicular to the plane of the figure, a height H that is slightly greater than the height of the area of the bottles 2 to be detected by the device 1, for example slightly larger than the height of the bottles 2. With the two edges 5.1 and 5.2 extending in the vertical direction, the luminescent screen 5 extends as close as possible to the respective transporting lug 3 or 4, ie in the case of the linear transporting lane 3 the luminescent screen 5 extends over an angular range of slightly less than 180 [deg.] vertical axis LSA.
  • In the case of the circular transport path 4, the luminescent screen 5 can be made somewhat longer, i. the luminescent screen can then extend over an angular range greater than 180 ° about the axis LSA. The radius of curvature that the light-emitting element 6 has at its, the respective bottle 2 facing concave inside is significantly greater than half the outer diameter, the bottles 2 have at their area to be detected.
  • The luminescent screen 5 is furthermore designed such that in the activated state the luminescent screen element 6 illuminates at its entire concave inner surface 6.1 with the same or almost identical brightness. For this purpose, the luminescent screen element 6 is, for example, designed to be light-scattering from a translucent material and consists, for example, of a pane of frosted glass or a frosted-glass-like material. As light sources 6 light-emitting elements 6.3 are provided on the convex outer side 6.2 of the fluorescent screen element, for example, a plurality of oriented in the vertical direction fluorescent lamps and / or a plurality of LEDs or the like.
  • On the screen 5, an electronic camera 7 is further provided, in the illustrated embodiment on the convex outside 6.2 of the screen element 6. For this camera 7, with its camera axis 7.1 in the horizontal direction and perpendicular to the transport path 3 and radial to the circular transport path 4, the luminescent screen 5 has an opening 8, through which the respective bottle 2 located in the detection position or its region having the embossing is imaged by the camera 7. The camera axis 7.1 also intersects the axis LSA in the illustrated embodiment. The camera axis 7.1 continues to lie in a vertical center plane M, which intersects the transport path 3 perpendicular or is oriented radially to the circular transport path 4 and to which the device 1 is mirror-symmetrical.
  • On the opposite side of the screen 5 transport path 3 and 4, a surface element 9 is provided, which forms a flat side 9.1, which is oriented in the vertical direction and perpendicular to the camera axis 7.1, the phosphor screen 5 facing white background. The surface element 9 or the surface 9.1 are further oriented so that this surface is 9.1 mirror-symmetrical to the center plane M formed.
  • As FIG. 1 also shows, the opening angle α, which the camera 7 or the camera lens has in the horizontal axis perpendicular to the camera axis 7.1, is chosen to be so large that the white background also exists on both sides of the bottle 2 located in the detection position the area 9.1 is displayed. The opening angle of the camera 7 in the vertical axis direction perpendicular to the camera axis 7.1 corresponds for example to the opening angle α, but may also deviate therefrom, for example, be smaller than the opening angle α.
  • The general operation of the device 1 can be described as follows:
  • Each filled with a liquid product and sealed bottles 2 are the device 1 successively fed to the respective transport path 3 and 4, so that the bottles 2 each successively reach the detection position. The respective bottle 2 positioned at this position then forms, with the outer surface of its bottle body, a kind of mirror or reflection surface through which the camera 7 and the like can be used. the luminous inner surface 6.1 of the activated luminescent screen 5 is viewed, as indicated by the arrows B and C in FIG. Smooth areas of the bottle body, which are also concentric or approximately concentric with the inner surface 6.1 of the luminescent screen 5, appear bright in the image of the camera, while transitions formed by profilings or embossings are reproduced in the camera image as dark areas or transitions.
  • The image data supplied by the camera 7 are processed in an evaluation and control electronics 10 (for example computers) having an image processing unit, which is then, inter alia, processed. from the number and the spatial allocation of the dark transitions in the camera image and taking into account the respective actual structuring or embossing of the bottle body, e.g. determines the angle at which the respective bottle 2 must be rotated about its axis of the bottle so that it has the required orientation for labeling. The evaluation and control electronics 10 then supplies for this purpose at an output, e.g. a corresponding control signal to a bottle alignment station, not shown.
  • With the camera 7, furthermore, the two outer vertical edge regions of the bottle body of the bottle 2 located in each case at the detection position are also imaged in front of the white background of the surface 9.1. A first rough statement about the actual orientation of the respective bottle 2 located at the detection position is already possible from the course of these edge regions, which, for example, appear substantially straight outside the embossing in the camera image and have a conspicuous waviness in the region of embossing the course of the edge regions in the camera image in the evaluation and control electronics 10 can be processed in support of determining the actual orientation of the respective bottle 2 and the deviation from the desired orientation.
  • The invention has been described above by means of an embodiment. It is understood that numerous changes and modifications are possible without thereby departing from the inventive concept underlying the invention. Thus, it is for example possible to provide at least two devices 1 in the transport direction A successively at the respective transport path 3 or 4, wherein Then, due to the measurement result of the first device 1 in the transport direction, a first alignment of the bottles 2 takes place and on the second device 1, the orientation of the bottles 2 is checked again and possibly a re-alignment takes place.
  • Notwithstanding the described embodiment, the screen element 6 can also be designed so that instead of the discrete, provided on the outside of the screen element 6 light-emitting elements 6.3 other means are used, which ensure the most uniform illumination of the inner surface 6.1. Thus, the luminescent screen element may be formed, for example, by a single-layer or multi-layer, light source of one or more light sources radiating light guide arrangement, for example on the convex outside of a curved lens, which then forms the inner surface of the luminescent screen with its concave inner side.
  • LIST OF REFERENCE NUMBERS
  • 1
    contraption
    2
    bottle
    3, 4
    transport distance
    5
    fluorescent screen
    5.1, 5.2
    Edge of the screen
    6
    Fluorescent screen element
    6.1
    concave inside
    6.2
    convex outside
    6.3
    Light emitting element
    7
    camera
    7.1
    camera axis
    8th
    Opening in the fluorescent screen
    9
    surface element
    9.1
    Surface of the surface element or white background
    10
    Evaluation and control electronics
    α
    Opening angle of the camera 7
    A
    transport direction
    B, C
    beam of light
    H
    Height of the screen
    M
    vertical center or symmetry plane
    LSA
    Curvature axis of the luminescent screen 5.

Claims (21)

  1. Device for detecting structures, such as profiles or stampings, on bodies in bottles or the like. Container (2),
    by a luminescent screen (5) provided at a detection position on one side of a transport path (3, 4) for the containers (2) and forming a light-emitting surface (6.1) facing the detection position and concavely curved around at least one axis of curvature (LSA) , such as
    by at least one optoelectric sensor (7) optically scanning the respective container body for producing a sensor signal which corresponds to the light of the luminescent screen (5) reflected on the body of the respective container (2).
  2. Apparatus according to claim 1, characterized in that the at least one sensor is an electronic camera (7) which is provided with its optics in the region of the luminescent screen (5), namely for generating a camera image with the body of the container (2). reflected light of the screen (5).
  3. Apparatus according to claim 1 or 2, characterized in that the at least one axis of curvature (LSA) of the luminous surface (6.1) of the luminescent screen (5) is oriented parallel to the axis of the container (2) at the detection position.
  4. Device according to one of the preceding claims, characterized in that the containers (2) are oriented at the detection position with its container axis in the vertical direction.
  5. Device according to one of the preceding claims, characterized in that the luminescent screen (5) at its concave luminous surface (6.1) is circular cylindrical or approximately circular cylindrical curved.
  6. Apparatus according to claim 5, characterized in that the axis of curvature (LSA) of the luminous surface (6.1) of the luminescent screen (5) is arranged coaxially with the axis of the respective container in the detection position.
  7. Device according to one of the preceding claims, characterized in that an opening (8) for the camera (7) is provided in the luminescent screen (5), which is provided on the outside of the luminescent screen (5) facing away from the luminescent surface (6.1).
  8. Device according to one of the preceding claims, characterized in that the radius of curvature of the luminous area (6.1) of the luminescent screen (5) is greater by a multiple than half the diameter of the container (2) or of the respectively to be detected area of the container.
  9. Device according to one of the preceding claims, characterized in that the luminescent screen (5) or its luminous surface (6.1) extend over an angular range significantly greater than 90 ° about the at least one axis of curvature (LSA).
  10. Apparatus according to claim 9, characterized in that the fluorescent screen (5) or its luminous surface (6.1) extend over an angular range of slightly less than 180 ° about the at least one axis of curvature (LSA).
  11. Apparatus according to claim 9, characterized in that the fluorescent screen (5) or its luminous surface (6.1) extend over an angular range of slightly more than 180 ° about the at least one axis of curvature (LSA).
  12. Device according to one of the preceding claims, characterized in that the luminescent screen (5) of at least one luminescent screen element (6) is formed from a trennsluzenten material and with light-scattering properties, for example of at least one luminescent screen element (6) of a frosted glass or a frosted glassy material in that light-generating elements (6.3) are provided on the outer surface of the at least one luminescent screen element (6) facing away from the luminous surface (6.1).
  13. Apparatus according to claim 12, characterized in that the light-generating elements (6.3) are gas discharge lamps or fluorescent tubes and / or LEDs.
  14. Device according to one of the preceding claims, characterized in that the phosphor screen (5) and the camera (7) on the transport path (3, 4) opposite a background (9.1), preferably a white background forming surface element (9) is provided.
  15. Apparatus according to claim 14, characterized in that the opening angle of the camera is selected so that in the camera image, the two, in the direction of the container axis extending edge regions of the container body against the background (9.1) are detected.
  16. Device according to one of the preceding claims, characterized in that it is formed symmetrically to a median plane (M), the camera axis (7.1) and the at least one axis of curvature (LSA) of the phosphor screen (5) and / or the axis of the respective in the Containing detection position located container (2).
  17. Device according to one of the preceding claims, characterized in that the camera (7) with an evaluation and control electronics (10) with image processing (10) is connected.
  18. Device according to one of the preceding claims, characterized in that it is part of the orientation of the container (2) on the transport path (3, 4) monitoring and / or the container (2) on the transport path (3, 4) in a prescribed orientation aligning station, for example a labeling machine.
  19. Device according to one of the preceding claims, characterized in that the transport path (3) is formed by a linear conveyor.
  20. Device according to one of the preceding claims, characterized in that the circular transport path (4) is formed by a rotary table or rotor driven peripherally about a vertical machine axis.
  21. Apparatus according to claim 20, characterized in that the luminescent screen (5) and the camera (7) are located outside the circular transport path (4).
EP05014977A 2004-08-19 2005-07-11 Device for detecting structures, such as profiles or stampings, on bodies of bottles or similar containers Expired - Fee Related EP1628241B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE102004040164A DE102004040164A1 (en) 2004-08-19 2004-08-19 Device for detecting structures, such as profiling or embossing on bodies of bottles or the like. Container

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL05014977T PL1628241T3 (en) 2004-08-19 2005-07-11 Device for detecting structures, such as profiles or stampings, on bodies of bottles or similar containers

Publications (2)

Publication Number Publication Date
EP1628241A1 true EP1628241A1 (en) 2006-02-22
EP1628241B1 EP1628241B1 (en) 2007-11-14

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EP (1) EP1628241B1 (en)
AT (1) AT378649T (en)
DE (2) DE102004040164A1 (en)
PL (1) PL1628241T3 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008028524A1 (en) * 2006-09-02 2008-03-13 Khs Ag Method for the positionally accurate application of labels, and labelling machine
WO2008031494A1 (en) * 2006-09-14 2008-03-20 Khs Ag Apparatus for controlling the rotational movement of vessels
WO2008072070A2 (en) * 2006-12-12 2008-06-19 Adriano Fusco System for detecting the angular positioning of containers
WO2010040512A1 (en) * 2008-10-07 2010-04-15 Khs Ag Test method for inspection device, particularly for label seating inspection device
WO2010049137A1 (en) * 2008-10-30 2010-05-06 Khs Ag Bottle seam and embossing alignment
ITPR20080083A1 (en) * 2008-12-10 2010-06-11 Marco Lottici Method for controlling the position and / or verification of the presence of written, screen printing labels that are applied on vessels in general
DE102012009783B3 (en) * 2012-05-18 2013-08-14 Khs Gmbh Method and device for inspection of empty bottles

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007030917A1 (en) * 2007-07-03 2009-01-08 Khs Ag Bottle handling method for labeling bottle, involves controlling rotation and pivoting of container support based on data, and molding groove or notch in container by blow molding at transition between container body and container base
DE102009020919A1 (en) 2009-05-12 2010-11-18 Krones Ag Device for detecting elevations and / or depressions on bottles, in particular in a labeling machine
DE102014102450A1 (en) 2014-02-25 2015-08-27 Khs Gmbh Inspection device with inverse foil lens
ITUA20162898A1 (en) * 2016-04-26 2017-10-26 Sacmi Labeling machine of containers for liquids with optical inspection device
IT201700123523A1 (en) * 2017-10-30 2019-04-30 Cmz Sistemi Elettr S R L Method for the detection within a digital image of a region of interest

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US6134343A (en) * 1996-09-24 2000-10-17 Cognex Corporation System or method for detecting defect within a semi-opaque enclosure
WO2003042673A1 (en) * 2001-11-16 2003-05-22 Heineken Technical Services B.V. Method and apparatus for generating a robust reference image of a container and for selecting of a container
WO2004020292A1 (en) * 2002-08-29 2004-03-11 Azionaria Costruzioni Macchine Automatiche A.C.M.A. S.P.A. Method and machine for labelling a succession of containers by means of a number of independent labelling stations
WO2004056658A1 (en) * 2002-12-20 2004-07-08 Azionaria Costruzioni Macchine Automatiche A.C.M.A. S.P.A. A labelling and/or marking machine

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DE3228464A1 (en) * 1982-07-30 1984-02-02 Oem Messtechnik Gmbh Method and device for optically monitoring the side wall of empty beverage bottles
US5007096A (en) * 1987-02-18 1991-04-09 Hajime Industries Ltd. Object inspection apparatus
US5774585A (en) * 1994-12-08 1998-06-30 Krones Ag Hermann Kronseder Maschinenfabrik Method of determining the shape of a body
US6134343A (en) * 1996-09-24 2000-10-17 Cognex Corporation System or method for detecting defect within a semi-opaque enclosure
WO2003042673A1 (en) * 2001-11-16 2003-05-22 Heineken Technical Services B.V. Method and apparatus for generating a robust reference image of a container and for selecting of a container
WO2004020292A1 (en) * 2002-08-29 2004-03-11 Azionaria Costruzioni Macchine Automatiche A.C.M.A. S.P.A. Method and machine for labelling a succession of containers by means of a number of independent labelling stations
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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101511681B (en) * 2006-09-02 2012-05-30 Khs有限责任公司 Method for the positionally accurate application of labels
WO2008028524A1 (en) * 2006-09-02 2008-03-13 Khs Ag Method for the positionally accurate application of labels, and labelling machine
WO2008031494A1 (en) * 2006-09-14 2008-03-20 Khs Ag Apparatus for controlling the rotational movement of vessels
WO2008072070A2 (en) * 2006-12-12 2008-06-19 Adriano Fusco System for detecting the angular positioning of containers
WO2008072070A3 (en) * 2006-12-12 2008-09-12 Adriano Fusco System for detecting the angular positioning of containers
WO2010040512A1 (en) * 2008-10-07 2010-04-15 Khs Ag Test method for inspection device, particularly for label seating inspection device
US8711350B2 (en) 2008-10-07 2014-04-29 Khs Gmbh Test method for inspection device, particularly for label seating inspection device
WO2010049137A1 (en) * 2008-10-30 2010-05-06 Khs Ag Bottle seam and embossing alignment
RU2498931C2 (en) * 2008-10-30 2013-11-20 Кхс Гмбх Data collection system for locking of bottles and its application (versions)
US8767201B2 (en) 2008-10-30 2014-07-01 Khs Gmbh Bottle seam and embossing alignment
ITPR20080083A1 (en) * 2008-12-10 2010-06-11 Marco Lottici Method for controlling the position and / or verification of the presence of written, screen printing labels that are applied on vessels in general
DE102012009783B3 (en) * 2012-05-18 2013-08-14 Khs Gmbh Method and device for inspection of empty bottles
US20150071523A1 (en) * 2012-05-18 2015-03-12 Jürgen Herrmann Method and apparatus for inspecting containers, such as bottles or similar containers
US9665933B2 (en) 2012-05-18 2017-05-30 Khs Gmbh Method and apparatus for inspecting containers, such as bottles or similar containers

Also Published As

Publication number Publication date
DE102004040164A1 (en) 2006-03-02
AT378649T (en) 2007-11-15
PL1628241T3 (en) 2008-04-30
EP1628241B1 (en) 2007-11-14
DE502005001941D1 (en) 2007-12-27

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