EP0101246B1 - Gerät zum Überprüfen von Glasbehältern auf Neigungs- und Verengungsfehler - Google Patents

Gerät zum Überprüfen von Glasbehältern auf Neigungs- und Verengungsfehler Download PDF

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Publication number
EP0101246B1
EP0101246B1 EP83304474A EP83304474A EP0101246B1 EP 0101246 B1 EP0101246 B1 EP 0101246B1 EP 83304474 A EP83304474 A EP 83304474A EP 83304474 A EP83304474 A EP 83304474A EP 0101246 B1 EP0101246 B1 EP 0101246B1
Authority
EP
European Patent Office
Prior art keywords
parameter
bottle
standard
predetermined
centre
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
Application number
EP83304474A
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English (en)
French (fr)
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EP0101246A2 (de
EP0101246A3 (en
Inventor
Constantine Walter Kulig
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.)
Emhart Glass Machinery US Inc
Original Assignee
Emhart Industries Inc
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Filing date
Publication date
Application filed by Emhart Industries Inc filed Critical Emhart Industries Inc
Publication of EP0101246A2 publication Critical patent/EP0101246A2/de
Publication of EP0101246A3 publication Critical patent/EP0101246A3/en
Application granted granted Critical
Publication of EP0101246B1 publication Critical patent/EP0101246B1/de
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00—Sorting 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
    • B07C5/04—Sorting according to size
    • B07C5/12—Sorting according to size characterised by the application to particular articles, not otherwise provided for
    • B07C5/122—Sorting according to size characterised by the application to particular articles, not otherwise provided for for bottles, ampoules, jars and other glassware
    • B07C5/126—Sorting according to size characterised by the application to particular articles, not otherwise provided for for bottles, ampoules, jars and other glassware by means of photo-electric sensors, e.g. according to colour
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00—Sorting 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
    • B07C5/04—Sorting according to size
    • B07C5/10—Sorting according to size measured by light-responsive means

Definitions

  • the invention relates generally to inspection devices for the inspection of glass containers. More particularly, the invention relates to apparatus for inspecting glass containers for leaners and chokes.
  • lean and choke refers to the extent to which the top of the bottle deviates in alignment from its base.
  • choke refers to the opening in the top portion, or finish, of the bottle. A bottle with either an excessive lean of a restricted opening is defective and must be rejected.
  • leaner gauges are often separate devices from choke gauges therefore requiring the use of two inspection stations to perform these functions.
  • Most prior art inspection for leaners and chokes has therefore been relatively inefficient, costly and slow.
  • prior art leaner and choke gauges are often of the mechanical type.
  • the former use a fixed ring gauge to check each bottle for excessive lean while the latter use a fixed plug gauge to check for restricted openings.
  • Such devices are not capable of being easily adjusted to alter the amount of allowable lean or choke. Accordingly, there is a need for a single non-contact leaner and choke gauge capable or rapid adjustment of allowable parameters.
  • a prior art non-contact leaner gauge disclosed in U.S. Patent No. 4107523, is an apparatus that detects leaners by illuminating the rim of the finish of the bottle and detecting the reflected light. This device is rather complex, requires careful alignment for proper operation, does not provide any informtion about the amount of the lean and is not capable of being easily adjusted.
  • An adjustable, non-contact leaner gauge has been disclosed in U.S. Patent No. 3549890. However, this device is also complex, costly and incapable of inspecting for chokes. No prior art choke gauge is known capable of easy adjustment of the extent of choke.
  • T.V. Cameras have been used to inspect for unwanted contents (See DE-A-2209456) and for flaws near the mouth (See US-A-4284353) but not so far as is known for leaner or choke gauges.
  • an object of the present invention to provide an apparatus for detecting leaners and chokes at a single inspection station, without contact with the bottle and without stopping any bottle. It is a further object to provide an apparatus wherein the parameters representative of the lean and choke of defective bottles may be easily adjusted.
  • the invention provides apparatus for inspecting a bottle moving continuously on a conveyor past a station, the apparatus comprising light source means for illuminating the interior of said bottle at said station, trigger means for detecting when said bottle is positioned at a predetermined point relative to said station, a video camera for viewing the opening of said bottle, said video cameral being aligned substantially along the vertical centreline of said bottle when said bottle is at said predetermined point, and means for rejecting defective bottles, characterised in that the apparatus is operable to inspect the bottle for leaners or chokes and also comprises:
  • processing means responsive to said camera and said trigger means to determine the portion of the instantaneous image produced by the video camera which represents the opening when the bottle is at said predetermined point; and comparing means for comparing a geometric parameter of said portion to a predetermined standard, and for activating the rejecting means in the event that said parameter bears a predetermined relationship to said standard.
  • Said geometric parameter may be, for example, the area of said portion, the smallest diameter thereof, the position of the centre thereof, or the amount which overlaps a standard area.
  • Gauge 10 is situated adjacent conveyor 12 at work station 14 which is aligned along transverse centerline 16 for the inspection of bottles 18 as they are moved continuously past work station 14.
  • Guide means 20 is utilized to laterally position the bottles so that the opening 22 of each bottle passes the intersection of transverse centerline 16 with the axis 24 of conveyor 12.
  • a pair of light sources 30 and 32 are arranged to illuminate the interior of each bottle as it passes work station 14. The light intensity required is obviously a function of the degree of translucence of the bottle.
  • Video camera 34 is focused through a lens system 36 to view the opening 22 of each bottle as it passes transverse centerline 16.
  • a trigger mechanism 40 comprising light emitter 42 and detector 44 is aligned parallel to transverse centerline 16 at a predetermined distance therefrom and senses the passage of the leading edge of each container 18 (near its base) through a work station 14. In operation, trigger mechanism 40 produces a triggering signal at a time when the opening 22 of bottle 18 should be centered about the inetersection of lines 16 and 24.
  • Video camera 34 is aligned substantially along the vertical centerline of the bottle located at the work station and produces an instantaneous image of opening 22 in response to the triggering signal produced by trigger mechanism 40.
  • the video image may be continuously produced by camera 34 as the bottle is moving provided the image is "frozen” in response to the triggering signal.
  • the video signal produced by camera 34 passes through processing circuit 50 to monitor 52.
  • Figure 3 represents a diagrammatic view of the monitor screen representing the camera's view of a representative "ideal" bottle 18a, i.e. a bottle having its vertical axis concentric with its base and opening and having a predetermined size opening.
  • processing circuit 50 processes the instantaneous video signal to determine which bottles are unacceptable due to excessive lean or choke. The circuits would then provide an appropriate signal to reject mechanism 54 situated downstram from work 14 to reject defective bottles.
  • Circuit 50 processes the video signal in two subcircuits 60 and 62 for calculating geometric properties to determine which bottles are leaners and chokes, respectively.
  • Subcircuit 60 computes the area subtended by opening 22 (as monitored on monitor 52, best seen in Figure 3) and compares it to a standard area represnted by circle 64 on the monitor screen.
  • the standard area may be preset into subcircuit 60 or may be adjustable by an operator by means not shown. If the computed area for a bottle is found to be smaller than the standard by a predetermined adjustable amount, subcircuit 60 provides a signal to reject mechanism 54 to later reject that bottle for excessive lean. Similar results could be obtained by calculating the center of opening 22 and comparing it to a standard center. All bottles deviating by an excessive amount would be rejected.
  • Subcircuit 62 similarly determines whether a particular bottle has an excessive choke by computing the area subtended by opening 22 as well as computing the smallest diameter thereof. Both the computed area and smallest diameter are compared to predetermined adjustable standards and a bottle is rejected if it has computed parameters outside predetermined adjustable limits.
  • Subcircuits 60 and 62 are constructed of conventional components and are not shown or described in detail herein since the operations described with respect to each are deemed to be within the scope of those skilled in the art.
  • bottles 18b and 18c having excessive lean and choke may result in identical area calculations 22a and 22b. (Note that the drawings do not necessarily shown this condition). Thus, calculation of areas 22a and 22b of opening 22 could be accomplished by one subcirucit 60 or 62 without any calculation of the smallest diameter of the opening. This would permit detection of leaners and chokes with simplified circuitry although it would not provide an indication of why a bottle was being rejected. If one desires to determine whether a bottle was rejected for lean or choke then some other parameter besides just area must be calculated.

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  • Length Measuring Devices By Optical Means (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Claims (10)

1. Vorrichtung zum Überprüfen einer sich kontinuierlich auf einer Fördereinrichtung an einer Station vorbeibewegenden Flasche auf Neigungs-und Verengungsfehler mit einer Lichtquelle zum Ausleuchten des Inneren der Flasche an der Station, mit einer Auslöseeinrichtung zum Erfassen des Augenblicks, in welchem sich die Flasche an einem vorbestimmten Punkt in Bezug auf die Station befindet, mit einer Videokamera, die im wesentlichen mit der vertikalen Mittellinie der Flasche ausgerichtet ist, zur Aufnahme der Öffnung der Flasche, wenn sich diese an dem vorbestimmten Ort befindet, und mit einer Einrichtung zum Aussondern fehlerhafter Flaschen, dadurch gekennzeichnet, daß die Vorrichtung eine Rechnereinrichtung, die auf die Videokamera- und die Auslöseeinrichtung anspricht, zum Bestimmen des Abschnitts der von der Videokamera (34) gemachten Momentaufnahme, welcher die Flaschenöffnung darstellt, wenn sich die Flasche an dem vorbestimmten Punkt befindet, und eine Vergleichseinrichtung (60, 62) umfaßt, welche einen geometrischen Parameter des Abschnitts mit einem vorbestimmten Standardwert vergleicht und welche die Aussonderungseinrichtung (54) in dem Fall betätigt, daß der Parameter eine vorbestimmte Beziehung von dem genannten Standardwert aufweist.
2. Vorrichtung nach anspruch 1, dadurch gekennzeichnet, daß eine weitere Vergleichseinrichtung (60, 62) vorgesehen ist, die einen weiteren geometrischen Parameter des genannten Abschnittes mit einem weiteren vorbestimmten Standardwert vergleicht und die Aussonderungseinrichtung (54) in dem Fall betätigt, daß dieser weitere Parameter zu dem weiteren Standardwert eine vorbestimmte Beziehung aufweist.
3. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Parameter die Fläche des Abschnittes ist.
4. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Parameter der kleinste Durchmesser dieses Abschnittes ist.
5. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Parameter die Lage des Mittelpunktes dieses Abschnittes ist.
6. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Parameter der Teil des Abschnittes ist, welcher eine um einen vorbestimmten Mittelpunktstandard zentrierte Standardfläche überlappt.
7. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß entweder der erwähnte Parameter oder der weitere erwähnte Parameter die Fläche des genannten Abschnittes ist.
8. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß entweder erwähnte Parameter oder der weitere erwähnte Parameter der kleinste Durchmesser dieses Abschnittes ist.
9. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß entweder der erwähnte Parameter oder der weitere erwähnte Parameter die Lage des Millelpunktes dieses Abschnittes ist.
10. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß entweder der erwähnte Parameter oder der weitere erwähnte Parameter der Teil des Abschnittes ist, welcher eine Standardfläche überlappt, die um einen vorbestimmten Standardmittelpunkt zentriert ist.
EP83304474A 1982-08-06 1983-08-03 Gerät zum Überprüfen von Glasbehältern auf Neigungs- und Verengungsfehler Expired EP0101246B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US40567382A 1982-08-06 1982-08-06
US405673 1982-08-06

Publications (3)

Publication Number Publication Date
EP0101246A2 EP0101246A2 (de) 1984-02-22
EP0101246A3 EP0101246A3 (en) 1984-09-12
EP0101246B1 true EP0101246B1 (de) 1989-03-15

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Application Number Title Priority Date Filing Date
EP83304474A Expired EP0101246B1 (de) 1982-08-06 1983-08-03 Gerät zum Überprüfen von Glasbehältern auf Neigungs- und Verengungsfehler

Country Status (4)

Country Link
EP (1) EP0101246B1 (de)
JP (1) JPS59116503A (de)
AU (1) AU1684883A (de)
DE (1) DE3379388D1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6480802A (en) * 1987-09-24 1989-03-27 Echo Kk Bottle mouth inspecting device
JPH06167576A (ja) * 1992-11-30 1994-06-14 Kawasaki Steel Corp 付着間紙の検出方法及び帯板処理ライン
DE4302688C1 (de) * 1993-02-01 1994-08-25 Heye Hermann Fa Verfahren zur Prüfung der Maßhaltigkeit einer Behältermündung
US6198102B1 (en) 1998-06-17 2001-03-06 Owens-Brockway Glass Container Inc. Inspection of container mouth using infrared energy emitted by the container bottom
WO2004065903A1 (ja) * 2003-01-24 2004-08-05 Nihon Yamamura Glass Co., Ltd. 容器の口部検査装置
ES2358410B1 (es) * 2009-10-15 2012-03-20 Pol Oposat Lineal, S.L. Dispositivo para el control de calidad de botellas de vidrio.
DE102010047621A1 (de) 2010-10-07 2012-04-12 Krones Aktiengesellschaft Vorrichtung und Verfahren zur Erkennung einer Drehstellung von Kunststoffvorformlingen

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4284353A (en) * 1978-07-17 1981-08-18 Hajime Industries Ltd. Flaw detecting apparatus
JPS5746172A (en) * 1980-09-05 1982-03-16 Mitsubishi Electric Corp Range measuring device
JPS5768389A (en) * 1980-10-15 1982-04-26 Hajime Sangyo Inspecting device
US4376951A (en) * 1978-09-29 1983-03-15 Kirin Beer Kabushiki Kaisha Foreign matter detecting device

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3549890A (en) * 1969-01-16 1970-12-22 Emhart Corp Article inspection apparatus
US3791741A (en) * 1971-09-28 1974-02-12 Farrand Optical Co Inc Size gauging and quality inspecting rotating articles by imaging onto spatial filters and detectors
DE2209456A1 (de) * 1972-02-29 1973-09-06 Holstein & Kappert Maschf Einrichtung zur pruefung von auf transporteinrichtungen bewegten gegenstaenden
US3923158A (en) * 1973-06-20 1975-12-02 Platmanufaktur Ab On-line multistation inspection device for machine moulded products
US4017721A (en) * 1974-05-16 1977-04-12 The Bendix Corporation Method and apparatus for determining the position of a body
FR2339157A1 (fr) * 1976-01-26 1977-08-19 Boussois Souchon Neuvesel Sa Appareil pour le controle automatique de la verticalite des bouteilles
JPS52105856A (en) * 1976-03-03 1977-09-05 Toyo Glass Co Ltd Detector for eccentricity of opening of bottle
JPS5472094A (en) * 1977-11-21 1979-06-09 Sapporo Breweries Ltd Bottle bottom inspecting machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4284353A (en) * 1978-07-17 1981-08-18 Hajime Industries Ltd. Flaw detecting apparatus
US4376951A (en) * 1978-09-29 1983-03-15 Kirin Beer Kabushiki Kaisha Foreign matter detecting device
JPS5746172A (en) * 1980-09-05 1982-03-16 Mitsubishi Electric Corp Range measuring device
JPS5768389A (en) * 1980-10-15 1982-04-26 Hajime Sangyo Inspecting device
US4435641A (en) * 1980-10-15 1984-03-06 Hajime Industries Ltd. Inspection apparatus for inspecting an object to determine whether or not it contains an abnormality, defect or the like

Also Published As

Publication number Publication date
EP0101246A2 (de) 1984-02-22
JPS59116503A (ja) 1984-07-05
JPH0217045B2 (de) 1990-04-19
AU1684883A (en) 1984-02-09
EP0101246A3 (en) 1984-09-12
DE3379388D1 (en) 1989-04-20

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