EP0319180A2 - Mécanisme pour appareil d'inspection de récipient en verre - Google Patents
Mécanisme pour appareil d'inspection de récipient en verre Download PDFInfo
- Publication number
- EP0319180A2 EP0319180A2 EP88310956A EP88310956A EP0319180A2 EP 0319180 A2 EP0319180 A2 EP 0319180A2 EP 88310956 A EP88310956 A EP 88310956A EP 88310956 A EP88310956 A EP 88310956A EP 0319180 A2 EP0319180 A2 EP 0319180A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- cam
- container
- gage
- finish
- carriage
- 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.)
- Withdrawn
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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
- B07C5/124—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 mechanical measuring devices which may also control electrical contacts
Definitions
- the present invention relates to mechanisms for use with automatic apparatus for inspecting glass containers and the like, and more particularly to an improved cam-driven assembly for controlling the motion of an inspection head in coordination with the motion of a container through an inspection zone.
- the plug gage plunger assembly is caused to move horizontally in coordination with the motion of bottles through the inspection zone by means of the same cam 24, via a cam follower roller 25 which is maintained in peripheral contact with the cam 24 by biasing means (i.e., springs 26 and 27) which forwardly urge the carriage 16 in which the plunger and cam are mounted.
- the cam 24 includes a linear motion portion (as illustrated, comprising about 180 degrees of the cam) during which equal angular movements of the cam cause equal linear traversing movements of the carriage and plunger. This causes the gage and the article to be inspected to move horizontally in unison during the gaging operation. It is noted that the other portion of the cam has a contour which causes the carriage to be moved back to its starting position taking any suitable form to minimize shock, such as a sinusoidal curve.
- a light source is mounted to the carriage for the vertical plunger to illuminate each bottle, and a second light source is located below the bottle path, in order that checks may be detected by the respective optical sensors.
- the bottle is grasped between rollers on the one side and belts on the other, as well as the rollers at the finish, to rotate it at least 360 degrees as it passes through the test area.
- Commonly assigned U.S. Patent No. 3,690,456 to W.S. Powers, Jr., Glass Container Crack Detector discloses an improvement to the '950 check detector apparatus wherein the apparatus includes a braking assembly at the downstream end of the belts, which assembly causes the container to lose contact with each belt and stop the container from rotating.
- a further object is to improve the operation of other types of inspection apparatus using the '704 mechanism for moving the inspection head.
- the invention provides an improved gaging device for glass containers and the like of the type including means for conveying containers past a testing area at a constant linear speed, a reciprocable carriage member, a testing gage mounted on a vertically reciprocable plunger to be inserted in the finish of a container to be tested, a bearing member eccentrically mounted to said cam, said bearing member being mounted to said plunger so that the rotation of the cam causes the vertical reciprocation of the plunger, and a cam follower member which follows the periphery of the rotating cam and is coupled to said carriage to cause the traversing of the carriage and the carriage-mounted plunger in parallel to the conveyance of the container past the testing area during the movement of the testing gage into and out of the finish of the container; wherein the improvement comprises an improved profile of said rotatably mounted cam having an extended linear motion contour occupying substantially more than 180° of the angular profile of said cam.
- the improved cam has
- the testing gage which enters the finish of the container and penetrates the container for a predetermined stroke, unless the finish is constricted beyond an allowable tolerance.
- the plug gage enters the finish of the container when the cam follower is located at the beginning of the extended linear motion portion of the cam profile, and leaves the finish at the end of said extended linear motion portion.
- the testing gage comprises a leak detector gage which injects air in the container and monitors the pressure within the container during an inspection interval during which the leak detector gage seals the finish of the container.
- such apparatus further comprises a second reciprocable carriage member, a second plunger-mounted testing gage, and a second rotating cam, all oriented so as to horizontally reciprocate said plunger to move the second testing gage into and out of proximity with the bottom of the container while causing the traversing of the second carriage and carriage-mounted plunger in parallel to the conveyance of the container, wherein the first and second testing gages comprise optical sensors for detecting the presence of checks in the neck and at the bottom of said container, respectively.
- the vertical and horizontal plungers only carry the rollers for engaging the rotating container during the inspection interval, and the optical sensor assemblies are mounted to the respective carriages.
- Figure 1 is a simplified view of the aperture gaging (plug gager) apparatus disclosed in U.S. Patent No. 3,387,704 corresponding to Figure 1 of this patent.
- the vertical motion of the plunger and plug gage is determined by the motion of the eccentrically mounted bearing roller 23 which is secured to plunger 18 by yoke 29, while the horizontal motion of the carriage 16 relative to the support plate 60 is determined by the motion of cam follower 25 against the periphery of cam 24.
- Containers to be tested are brought by screw conveyor 54 into position where the necks of the bottles are directly below the plug gage 13 at the time that cam 24 has positioned the carriage 16 at the limit of its rearward movement, and the gage is in its mid-stroke position poised above the neck of the bottle as shown in Figure 1.
- cam 24 and screw conveyor 54 are rotated in timed relation from a power shaft (not shown)
- the carriage 16 and the container in the gaging position travel in synchronism, and the gage is thrust into the neck of the bottle and then withdrawn during this lateral movement in unison.
- U.S. Patent No. 3,387,704 for details of the operation of plug gager apparatus 10.
- Cam 90 includes an extended constant velocity or linear motion portion 95 which commences at the 330° cam follower position and continues until the 210° cam follower position, a total of 240° as compared with 180° in the cam 24 of Figure 2.
- the remainder 96 of the cam profile, from 210° to 330°, is cycloidal in form, although contours of any suitable form designed to minimize shock could be employed.
- the effect of this extended linear portion 95 of the cam profile is illustrated in Figure 4B.
- the plug gage 13 begins to enter the bottle finish at the beginning of the constant velocity portion (eccentric bearing roller position 97), which in this case is at the 330° point, 30° sooner than for the cam 24 of Figure 4A. Similarly, the plug gage exits the bottle at the 210° point (roller position 99), 30° later than in the prior art cam 24 of Figure 4A.
- the resulting increase in stroke illustrated in Figure 4B equals R sin(30°), where R equals the eccentric offset.
- the improved cam 90 of the invention provides significant advantages in other types of container inspection apparatus utilizing this carriage mounted cam-plunger arrangement.
- One such instance is the leak detector apparatus shown in Figure 1 of commonly assigned U.S. Patent No. 3,496,761, which patent is incorporated herein by reference.
- the "fluidic finish selector" disclosed in Figure 1 of the '761 patent incorporates a cam 22, eccentrically mounted bearing 26, and cam follower 23 to control the motion of a carriage 8 and plunger tube 12 much as in the plug gager of U.S. Patent No. 3,387,704.
- a test fitting 13 at the end of plunger tube 12 closes the mouth of the container under test during a portion of each cycle in which it is lowered to seal the container finish due to the downward movement of plunger tube 12.
- the device injects a predetermined volume of air into the container, and at the end of this interval, the pressure within the container is measured to detect the presence of leaks, i.e., whether the pressure falls below a predetermined minimum.
- an improved cam such as the cam illustrated in Figure 3 hereof, the duration of the inspection interval is increased, increasing the maximum permissible leakage (pressure differential) which could be measured. This improves the sensitivity of the fluidic finish selector.
- a light source assembly to illuminate the finish of the container is mounted to the carriage for the vertical plunger, and a light source to illuminate the bottom of the container is located below the container path.
- Linear transport of the container through the inspection site is achieved by engaging the container between endless belt 24 and rollers 16; in addition, plunger-mounted rollers 38, 40 engage the bottle finish.
- container rotation is halted by brake pads 23 which protrude beyond the surface of belt 24.
- brake pads 23 which protrude beyond the surface of belt 24.
Landscapes
- Examining Or Testing Airtightness (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12835787A | 1987-12-02 | 1987-12-02 | |
US128357 | 1987-12-02 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0319180A2 true EP0319180A2 (fr) | 1989-06-07 |
EP0319180A3 EP0319180A3 (fr) | 1990-03-14 |
Family
ID=22434951
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP88310956A Withdrawn EP0319180A3 (fr) | 1987-12-02 | 1988-11-21 | Mécanisme pour appareil d'inspection de récipient en verre |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0319180A3 (fr) |
JP (1) | JPH01202646A (fr) |
CN (1) | CN1034434A (fr) |
AU (1) | AU2588488A (fr) |
BR (1) | BR8806135A (fr) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6871415B2 (en) | 2003-07-31 | 2005-03-29 | Owens-Brockway Glass Container Inc. | Container plug gauge and method of use |
US7387039B1 (en) | 2003-08-11 | 2008-06-17 | Owens-Brockway Glass Container Inc. | Container finish inspection |
CN108787493A (zh) * | 2018-08-01 | 2018-11-13 | 福州鸿基自动化设备有限公司 | 四工位工件测漏机 |
CN112058707A (zh) * | 2020-08-26 | 2020-12-11 | 张祥飞 | 一种玻璃预处理装置 |
CN117703884A (zh) * | 2023-12-29 | 2024-03-15 | 常熟市亚邦船舶电气有限公司 | 一种液压***测试设备 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB736582A (en) * | 1951-01-31 | 1955-09-14 | Ruston & Hornsby Ltd | Improvements in or relating to cams for actuating the valves of internal combustion engines |
US3387704A (en) * | 1966-01-11 | 1968-06-11 | Powers Manufacturing | Aperture gauging and sorting device |
US3541883A (en) * | 1969-04-11 | 1970-11-24 | Baird Corp | High speed composite cam |
US4399916A (en) * | 1978-12-28 | 1983-08-23 | The Coca-Cola Company | Reject system for in-line pressure testing system |
-
1988
- 1988-11-18 BR BR8806135A patent/BR8806135A/pt unknown
- 1988-11-21 EP EP88310956A patent/EP0319180A3/fr not_active Withdrawn
- 1988-11-24 AU AU25884/88A patent/AU2588488A/en not_active Abandoned
- 1988-12-02 CN CN 88108243 patent/CN1034434A/zh active Pending
- 1988-12-02 JP JP30583288A patent/JPH01202646A/ja active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB736582A (en) * | 1951-01-31 | 1955-09-14 | Ruston & Hornsby Ltd | Improvements in or relating to cams for actuating the valves of internal combustion engines |
US3387704A (en) * | 1966-01-11 | 1968-06-11 | Powers Manufacturing | Aperture gauging and sorting device |
US3541883A (en) * | 1969-04-11 | 1970-11-24 | Baird Corp | High speed composite cam |
US4399916A (en) * | 1978-12-28 | 1983-08-23 | The Coca-Cola Company | Reject system for in-line pressure testing system |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6871415B2 (en) | 2003-07-31 | 2005-03-29 | Owens-Brockway Glass Container Inc. | Container plug gauge and method of use |
US7387039B1 (en) | 2003-08-11 | 2008-06-17 | Owens-Brockway Glass Container Inc. | Container finish inspection |
CN108787493A (zh) * | 2018-08-01 | 2018-11-13 | 福州鸿基自动化设备有限公司 | 四工位工件测漏机 |
CN108787493B (zh) * | 2018-08-01 | 2023-10-31 | 福州鸿基自动化设备有限公司 | 四工位工件测漏机 |
CN112058707A (zh) * | 2020-08-26 | 2020-12-11 | 张祥飞 | 一种玻璃预处理装置 |
CN117703884A (zh) * | 2023-12-29 | 2024-03-15 | 常熟市亚邦船舶电气有限公司 | 一种液压***测试设备 |
Also Published As
Publication number | Publication date |
---|---|
AU2588488A (en) | 1989-06-15 |
JPH01202646A (ja) | 1989-08-15 |
BR8806135A (pt) | 1989-08-15 |
CN1034434A (zh) | 1989-08-02 |
EP0319180A3 (fr) | 1990-03-14 |
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Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 19900917 |