EP0101246A2 - Apparatus for the inspection of glassware containers for leaners and chokes - Google Patents
Apparatus for the inspection of glassware containers for leaners and chokes Download PDFInfo
- Publication number
- EP0101246A2 EP0101246A2 EP83304474A EP83304474A EP0101246A2 EP 0101246 A2 EP0101246 A2 EP 0101246A2 EP 83304474 A EP83304474 A EP 83304474A EP 83304474 A EP83304474 A EP 83304474A EP 0101246 A2 EP0101246 A2 EP 0101246A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- bottle
- predetermined
- area
- opening
- standard
- 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
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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 Devices or gauges exist in the prior art for the inspection of glass containers, generally bottles, for conditions or parameters known as lean and choke.
- lean 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 or 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,of rapid adjustment of allowable parameters.
- a prior art non-contact leaner gauge disclosed in U.S. Patent No. 4,107,523, 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 information 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. 3,549,890. However, this device is also complex, costly and incapable of inspecting for chokes. No prior art choke gauge is known capable of easy adjusttment of the extent of choke.
- 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.
- 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 intersection 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 4frozen" 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 downstream from work station 14 to reject defective bottles.
- Circuit 50 processes the video signal in two subcircuits 60 and 62 for calculating various parameters 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 represented 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.
- calculation of areas 22a and 22b of opening 22 could be accomplished by one subcircuit 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.
Landscapes
- Length Measuring Devices By Optical Means (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
Description
- 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.
- Devices or gauges exist in the prior art for the inspection of glass containers, generally bottles, for conditions or parameters known as lean and choke. The term "lean" refers to the extent to which the top of the bottle deviates in alignment from its base. The term "choke" refers to the opening in the top portion, or finish, of the bottle. A bottle with either an excessive lean or a restricted opening is defective and must be rejected.
- All known prior art choke gauges and most leaner gauges require contact with the bottle being inspected, some such devices also require stopping the bottle. Consequently such devices make the inspection process relatively slow, complex and not ideally suitable for today's high speed glass container production equipment.
- Also, 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.
- Furthermore, 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,of rapid adjustment of allowable parameters.
- A prior art non-contact leaner gauge, disclosed in U.S. Patent No. 4,107,523, 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 information 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. 3,549,890. However, this device is also complex, costly and incapable of inspecting for chokes. No prior art choke gauge is known capable of easy adustment of the extent of choke.
- In view of the above it is 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.
- These and other objects are achieved by the preferred embodiment of the invention disclosed herein which is an apparatus for inspecting a bottle moving continuously on a conveyor past a work station and comprising:
- light source means for illuminating the interior of said bottle at said work station;
- trigger means for detecting the position of said bottle at a predetermined point relative to said work station;
- a video camera responsive to said trigger means for-viewing the opening of said bottle, said video camera aligned substantially along the vertical centerline of said bottle when said bottle is at said predetermined point;
- processing means responsive to said camera and said trigger means for determining at least one predetermined parameter of said opening;
- means for comparing said parameter to a predetermined standard;
- means responsive to said comparator means for rejecting said bottle in the event said parameter bears a predetermined relationship to said standard.
-
- Figure 1 is a diagrammatic elevational view of the invention situated adjacent a conveyor for carrying glass containers to be inspected;
- Figure 2 is a plan view of Figure 1 taken along the lines 2-2;
- Figures 3, 4 and 5 are diagrammatic views of a monitor screen showing a plan view of a representative ideal bottle, leaner and choke, respectively.
- Referring now to Figures 1 and 2 there is shown a leaner and choke gauge 10 constructed according to the principles of the present invention. Gauge 10 is situated
adjacent conveyor 12 at work station 14 which is aligned alongtransverse centerline 16 for the inspection ofbottles 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 oftransverse centerline 16 with theaxis 24 ofconveyor 12. - A pair of
light sources 30 and 32 (best seen in Figure 1) 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 passestransverse centerline 16. Atrigger mechanism 40 comprising light emitter 42 anddetector 44 is aligned parallel totransverse 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 ofbottle 18 should be centered about the intersection oflines -
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 bytrigger mechanism 40. The video image may be continuously produced bycamera 34 as the bottle is moving provided the image is 4frozen" in response to the triggering signal. The video signal produced bycamera 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. As will be explained below,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 rejectmechanism 54 situated downstream from work station 14 to reject defective bottles. -
Circuit 50 processes the video signal in twosubcircuits Subcircuit 60 computes the area subtended by opening 22 (as monitored onmonitor 52, best seen in Figure 3) and compares it to a standard area represented bycircle 64 on the monitor screen. The standard area may be preset intosubcircuit 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 rejectmechanism 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 - As shown in Figures 4 and 5, bottles 18b and 18c having excessive lean and choke respectively may result in
identical area calculations 22a and 22b. (Note that the drawings do not necessarily show this condition.) Thus, calculation ofareas 22a and 22b of opening 22 could be accomplished by onesubcircuit - It will further be understood by those skilled in the art that numerous modifications and improvements may be made to the preferred embodiment of the invention disclosed herein without departing from the spirit and scope thereof.
Claims (7)
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 true EP0101246A2 (en) | 1984-02-22 |
EP0101246A3 EP0101246A3 (en) | 1984-09-12 |
EP0101246B1 EP0101246B1 (en) | 1989-03-15 |
Family
ID=23604710
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP83304474A Expired EP0101246B1 (en) | 1982-08-06 | 1983-08-03 | Apparatus for the inspection of glassware containers for leaners and chokes |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0101246B1 (en) |
JP (1) | JPS59116503A (en) |
AU (1) | AU1684883A (en) |
DE (1) | DE3379388D1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4302688C1 (en) * | 1993-02-01 | 1994-08-25 | Heye Hermann Fa | Method for testing the dimensional stability of a container mouth |
EP0965836A1 (en) * | 1998-06-17 | 1999-12-22 | Owens-Brockway Glass Container Inc. | Inspection of container mouth using infrared energy emitted by the container bottom |
WO2004065903A1 (en) * | 2003-01-24 | 2004-08-05 | Nihon Yamamura Glass Co., Ltd. | Inspection device for mouth of container |
ES2358410A1 (en) * | 2009-10-15 | 2011-05-10 | Pol Oposat Lineal, S.L. | Device for the quality control of glass bottles. (Machine-translation by Google Translate, not legally binding) |
EP2439490A1 (en) * | 2010-10-07 | 2012-04-11 | Krones AG | Method and device for recognising a rotation of plastic pre-forms |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6480802A (en) * | 1987-09-24 | 1989-03-27 | Echo Kk | Bottle mouth inspecting device |
JPH06167576A (en) * | 1992-11-30 | 1994-06-14 | Kawasaki Steel Corp | Detecting method for stuck interleaf paper and band plate processing line |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3549890A (en) * | 1969-01-16 | 1970-12-22 | Emhart Corp | Article inspection apparatus |
DE2209456A1 (en) * | 1972-02-29 | 1973-09-06 | Holstein & Kappert Maschf | DEVICE FOR TESTING OBJECTS MOVING ON TRANSPORT DEVICES |
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 |
US3923158A (en) * | 1973-06-20 | 1975-12-02 | Platmanufaktur Ab | On-line multistation inspection device for machine moulded products |
US4107523A (en) * | 1976-01-26 | 1978-08-15 | Boussois Souchon Neuvesel Gervais Danone (Societe Anonyme) | Equipment for automatically monitoring the verticality of bottles |
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 (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4017721A (en) * | 1974-05-16 | 1977-04-12 | The Bendix Corporation | Method and apparatus for determining the position of a body |
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 |
-
1983
- 1983-07-14 AU AU16848/83A patent/AU1684883A/en not_active Abandoned
- 1983-08-03 DE DE8383304474T patent/DE3379388D1/en not_active Expired
- 1983-08-03 EP EP83304474A patent/EP0101246B1/en not_active Expired
- 1983-08-05 JP JP14361283A patent/JPS59116503A/en active Granted
Patent Citations (10)
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 (en) * | 1972-02-29 | 1973-09-06 | Holstein & Kappert Maschf | DEVICE FOR TESTING OBJECTS MOVING ON TRANSPORT DEVICES |
US3923158A (en) * | 1973-06-20 | 1975-12-02 | Platmanufaktur Ab | On-line multistation inspection device for machine moulded products |
US4107523A (en) * | 1976-01-26 | 1978-08-15 | Boussois Souchon Neuvesel Gervais Danone (Societe Anonyme) | Equipment for automatically monitoring the verticality of bottles |
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 |
Non-Patent Citations (1)
Title |
---|
IBM TECHNICAL DISCLOSURE BULLETIN, vol. 11, no. 3, August 1968, pages 287-288, Armonk, New York, US; A.C. TURITS: "Video measuring system". * |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4302688C1 (en) * | 1993-02-01 | 1994-08-25 | Heye Hermann Fa | Method for testing the dimensional stability of a container mouth |
EP0965836A1 (en) * | 1998-06-17 | 1999-12-22 | Owens-Brockway Glass Container Inc. | Inspection of container mouth using infrared energy emitted by the container bottom |
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 |
AU750656B2 (en) * | 1998-06-17 | 2002-07-25 | Owens-Brockway Glass Container Inc. | Inspection of container mouth using infrared energy emitted by the container bottom |
WO2004065903A1 (en) * | 2003-01-24 | 2004-08-05 | Nihon Yamamura Glass Co., Ltd. | Inspection device for mouth of container |
ES2358410A1 (en) * | 2009-10-15 | 2011-05-10 | Pol Oposat Lineal, S.L. | Device for the quality control of glass bottles. (Machine-translation by Google Translate, not legally binding) |
EP2439490A1 (en) * | 2010-10-07 | 2012-04-11 | Krones AG | Method and device for recognising a rotation of plastic pre-forms |
US8620062B2 (en) | 2010-10-07 | 2013-12-31 | Krones Ag | Apparatus and method of detecting a rotational setting of plastics material pre-forms |
Also Published As
Publication number | Publication date |
---|---|
AU1684883A (en) | 1984-02-09 |
DE3379388D1 (en) | 1989-04-20 |
EP0101246B1 (en) | 1989-03-15 |
JPH0217045B2 (en) | 1990-04-19 |
JPS59116503A (en) | 1984-07-05 |
EP0101246A3 (en) | 1984-09-12 |
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