GB2274709A - Cask handling system - Google Patents

Cask handling system Download PDF

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Publication number
GB2274709A
GB2274709A GB9401752A GB9401752A GB2274709A GB 2274709 A GB2274709 A GB 2274709A GB 9401752 A GB9401752 A GB 9401752A GB 9401752 A GB9401752 A GB 9401752A GB 2274709 A GB2274709 A GB 2274709A
Authority
GB
United Kingdom
Prior art keywords
cask
keystone
shive
image
scanned
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Withdrawn
Application number
GB9401752A
Other versions
GB9401752D0 (en
Inventor
Paul Wilson
Robert Jones
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.)
CHADBURNS Ltd
Original Assignee
CHADBURNS Ltd
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 GB939301867A priority Critical patent/GB9301867D0/en
Application filed by CHADBURNS Ltd filed Critical CHADBURNS Ltd
Publication of GB9401752D0 publication Critical patent/GB9401752D0/en
Publication of GB2274709A publication Critical patent/GB2274709A/en
Withdrawn legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00Cleaning hollow articles by methods or apparatus specially adapted thereto
    • B08B9/08Cleaning containers, e.g. tanks
    • B08B9/0821Handling or manipulating containers, e.g. moving or rotating containers in cleaning devices, conveying to or from cleaning devices

Abstract

An apparatus for locating the shive and/or shive hung hole 6 in a cask 2 comprises means for scanning a portion of the cask using a light stripe 12, detecting the scanned image and detecting the deflection in the scanned image when the shive or bung hole is scanned. An apparatus for locating the keystone 32 in a cask 30 comprises means for directing light towards an end of the cask and detecting a shadow 34 formed by the keystone so that the keystone location can be determined. <IMAGE>

Description

CASK HANDLING SYSTEM The present invention relates to a system for handling casks or the like and to apparatus and method for facilitating the automated handling of casks during deshive and dekeystone operation. In particular, the invention relates to apparatus and method of shive and/or keystone and/or shive/keystone bung hole location.
Conventional methods of preparing casks for washing and racking are labour intensive, requiring considerable manual effort and back-bending.
This means that such systems are not fully automated so that cask handling, shive and keystone removal is labour intensive and time consuming.
The object of the present invention is to provide an apparatus and method for facilitating the automatic removal of the shive and keystone from casks and, in particular, to an apparatus and method for locating the shive and keystone or shive and keystone bung holes on a cask.
According to the invention there is provided apparatus for locating a shive and/or shive bung hole or the like in a cask or the like comprising means for scanning a portion of the cask, means for detecting the scanned image and means for detecting deflection in the scanned image when the shive and/or shive bung hole is scanned.
According to the invention there is also provided a method of locating a shive and/or shive bung hole or the like in a cask or the like comprising the steps of: (i) scanning a portion of the cask; (ii) detecting the scanned image; and (iii) determining the deflection in the scanned image when the shive and/or shive bung hole is scanned.
Preferably, the scanning means includes a fixed light beam and cask moving or rotation means. The latter may comprise a number of wheels. The light beam may comprise a beam from a projector passed through an aperture or slot to provide a light stripe. Although it is preferred that the scanning means include a fixed light beam and cask rotation means, it will be appreciated that the cask may be held in position and the light beam rotated about the cask or both the light beam and the cask may be rotated. Preferably, the cask is rotated about its longitudinal axis and the light beam is a narrow strip of light directed towards the central region of the cask. Preferably, the detection means is a camera and the deflection determining means is a camera control system.The camera control system may control the cask movement or rotation so that when a deflected image is detected the cask rotation may be halted or finely adjusted to bring the shive and/or shive bung hole into the correct required position.
The scanned image may be deflected when the shive reinforcement is scanned and/or when the shive is scanned. The shive surface may be suitably shaped to cause the scanned image to be deflected. For example, the shive surface may comprise a dent around the central shive aperture.
Thus, the invention provides an apparatus and method for facilitating the removal of shives continuously and automatically from, for example, traditional stainless steel and aluminium casks. The invention further provides for a shive adapted for use in an apparatus and/or method of the invention.
According to the invention there is also provided an apparatus for locating a keystone or the like in a cask or the like comprising means for directing light towards an end of a cask, means for detecting a shadow formed by the keystone if present in the cask and means for determining the location of the keystone from any shadow thus formed.
According to the invention there is further provided a method of locating a keystone or the like in a cask or the like comprising the steps of: (i) directing light towards an end of a cask; (ii) detecting a shadow formed by the keystone if present in the cask; and (iii) determining the locating of the keystone from such shadow.
The light may be a conventional floodlight or the like and is preferably arranged such that the keystone, if present, forms a crescent shaped shadow adjacent the keystone or keystone bung hole.
Preferably a camera is used to detect the shadow thus formed and a camera control system may be used to calculate the central location of the bung from the shape of the crescent shadow.
The camera control system may comprise any suitable processor or the like. Preferably the camera or detection means is located adjacent the central region of a light source or within the light beam.
According to the invention there is still further provided an apparatus for locating a keystone and/or keystone bung hole or the like in a cask comprising means for scanning a portion of the cask or an image of a portion of the cask and means for detecting when the keystone and/or keystone bung hole has been scanned. The invention further provides a method for locating a keystone and/or keystone bung hole in a cask comprising the steps of: (i) scanning a portion of the cask or an image of a portion of the cask; and (ii) detecting when the keystone and/or keystone bung hole has been scanned.
Preferably, the apparatus includes camera and memory means and the method includes taking a picture with a camera and storing the image in memory so that the stored image is scanned until the keystone and/or keystone bung hole is detected. A suitable processor may be used.
The invention will now be described, by way of example only and with reference to the accompanying drawings in which: Fig. 1 is a side view of a cask with shive hole and shive reinforcement.
Fig. 2 is a sectional view along the line A-A of Fig. 1; Fig. 3 is a side view of a cask with the view as seen by a camera; Fig. 4 is a side view as shown in Figure 3 with the shive reinforcement in the camera view; Figs. 5 (a) and (b) show a cross sectional view and a plan view of a shive surface respectively; Fig. 6 is a view of a cask end showing keystone location; Fig. 7 is a schematic front elevation of a cask handling system using the shive and keystone location methods of the invention.
Referring to Figures 1 to 4, the method of shive hole location involves projecting a stripe of light 12 onto the central region of the cask 2. The light stripe 12 may, for example, be provided by means of a slot or aperture arrangement in front of a projector light source. A camera (not shown) is suitably located to view the light deflected from the cask. If necessary, the light stripe 12 is centralised relative to the hoops 10 by appropriate adjustment of the light stripe in the longitudinal direction of the cask 2 so that the image 14 as seen by the camera, corresponding to the light stripe extending across and between a portion of the hoops 10, is centralised in the camera view as shown in Figure 3.
It will be appreciated that, in the case of a cask having a reinforcing band extending around the central region of the cask, the location of the light stripe 12 can be adjusted until the image as seen by the camera corresponds to the light deflected by the reinforcing band being centralised in the camera view. Thus, the central region of the cask can be located by the camera/light arrangement.
As the cask 2 is then rotated about the horizontal cask axis 4 as shown in Figure 1, the shive hole reinforcement 8 rotates about axis 4. When reinforcement 8 passes under the light stripe 12, the image seen by the camera is deflected 14' as shown in Fig. 4.
The shive hole 6 can be centralised in the camera view midway between the transition regions between the images 14 and 14'.
In summary, the deflection of the image produced by directing a light stripe 12 on the shive reinforcement and/or shive itself is used to locate the shive hole and/or shive.
Referring to Figure 6, the method of location of the keystone involves directing a uniform light source such as a floodlight or the like from an appropriate angle towards the cask end 30. If the keystone 32 is located in the cask end, a crescent shadow 34 will be formed on the cask end, generally adjacent the bung hole. The shape of the crescent can then be used to determine the location of the centre of the keystone, which will generally be the centre of curvature of the crescent. Clearly, if no shadow is formed on one cask end, the keystone can be located on the other cask end. An alternative method of keystone location, which can also be used to locate the keystone bung hole, is by scanning the image of a cask end adjacent its periphery, for example in reducing circles from the cask edge, until the keystone or bung hole is located.In general, the camera will take a picture of the cask end, store it in memory and scan that stored image until the keystone or bung hole is located.
Alternatively, and particularly in the case of a reinforcing band extending around the cask or when the shive is required to be located if present, the central region of the shive located in the shive hole 6 can be located by noting the deflection of the light stripe from the surface of the shive itself. This can be done when the surface of the shive is not flat and particularly when the shive surface has a dented region adjacent the central aperture of the shive. A typical shive surface for this purpose is shown in Figure 5 in which the surface 20 has a flat region 22, an aperture 24 and a dented region 26 sloping from the flat surface 22 towards the aperture 24. Thus light directed at the flat surface 22 at a given angle will be reflected at an appropriate angle whereas the same light will be reflected from the sloped surface 26 at a different angle.This deflection of the image will be seen by the camera. Although not considered of practical benefit, it will be appreciated that a similar deflection may be obtained if the dented region 26 slopes upwardly from the flat region 22.
Figure 7 shows a typical cask handling system 40 including a shive location apparatus 42 and a keystone location apparatus 44 of the invention. Once the shive has been located by the deshive camera, it is withdrawn by the deshive apparatus 46 and passes to the keystone location apparatus 44. When the keystone has been located the cask passes through a dekeystone apparatus 48 for removal of the keystone.
Conventional conveyor systems and cask rotation means can be used to position the casks as required for each operation. Once the location of the shive has been found it will be appreciated that the general location of the keystone can be estimated relative to the shive hole position so that subsequent keystone location is facilitated.
It will be appreciated that the present invention is not intended to be restricted to the details of the above described embodiment which is given by way of example only.

Claims (20)

1. Apparatus for locating a shive and/or shive bung hole or the like in a cask or the like comprising means for scanning a portion of the cask, means for detecting the scanned image and means for detecting deflection in the scanned image when the shive and/or shive bung hole is scanned.
2. A method of locating a shive and/or shive bung hole or the like in a cask or the like comprising the steps of: (i) scanning a portion of the cask; (ii) detecting the scanned image; and (iii) determining the deflection in the scanned image when the shive and/or shive bung hole is scanned.
3. Apparatus as claimed in claim 1 wherein the scanning means includes a fixed light beam and cask rotation means.
4. Apparatus as claimed in any preceding claim wherein the cask is rotated about its longitudinal axis and the light beam is a narrow strip of light directed towards the central region of the cask.
5. Apparatus as claimed in any preceding claim wherein the detection means is a camera.
6. Apparatus as claimed in any preceding claim wherein the deflection determining means is a camera control system.
7. Apparatus as claimed in claim 6 wherein the camera control system controls the cask rotation so that when a deflected image is detected the cask rotation may be halted or finely adjusted to bring the shive and/or keystone into the correct required position.
8. Apparatus for locating a keystone or the like in a cask or the like comprising means for directing light towards an end of a cask, means for detecting a shadow formed by the keystone if present in the cask and means for determining the location of the keystone from any shadow thus formed.
9. A method of locating a keystone or the like in a cask or the like comprising the steps of: (i) directing light towards an end of a cask; (ii) detecting a shadow formed by the keystone if present in the cask; and (iii) determining the locating of the keystone from such shadow.
10. Apparatus or method as claimed in claim 8 or claim 9 wherein the light is a conventional floodlight.
11. Apparatus or method as claimed in any of claims 8, 9 or 10 wherein the shadow formed by the keystone, if present, is crescent shaped.
12. Apparatus or method as claimed in any of claims 8 to 11 wherein the shadow is detected by means of a camera.
13. Apparatus or method as claimed in any of claims 8 to 12 wherein a camera control system is used to calculate the central location of the bung from the shape of the crescent shadow.
14. Apparatus for locating a keystone and/or keystone bung hole or the like in a cask comprising means for scanning a portion of the cask or an image of a portion of the cask and means for detecting when the keystone and/or keystone bung hole has been scanned.
15. A method for locating a keystone and/or keystone bung hole in a cask comprising the steps of: (i) scanning a portion of the cask or an image of a portion of the cask; and (ii) detecting when the keystone and/or keystone bung hole has been scanned.
16. Apparatus as claimed in claim 14 which includes camera means.
17. Apparatus as claimed in claim 14 or claim 16 which includes storage means.
18. A method as claimed in claim 15 which includes the steps of taking a picture with a camera and storing the image in memory so that the stored image can be scanned until the keystone and/or keystone bung hole is detected.
19. Apparatus substantially as hereinbefore described with reference to and as illustrated in the accompanying drawings.
20. A method substantially as hereinbefore described with reference to and as illustrated in the accompanying drawings.
GB9401752A 1993-01-30 1994-01-31 Cask handling system Withdrawn GB2274709A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB939301867A GB9301867D0 (en) 1993-01-30 1993-01-30 Cask handling system

Publications (2)

Publication Number Publication Date
GB9401752D0 GB9401752D0 (en) 1994-03-23
GB2274709A true GB2274709A (en) 1994-08-03

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Family Applications (2)

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GB939301867A Pending GB9301867D0 (en) 1993-01-30 1993-01-30 Cask handling system
GB9401752A Withdrawn GB2274709A (en) 1993-01-30 1994-01-31 Cask handling system

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB939301867A Pending GB9301867D0 (en) 1993-01-30 1993-01-30 Cask handling system

Country Status (1)

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GB (2) GB9301867D0 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH715544A1 (en) * 2018-11-14 2020-05-15 Moog Cleaning Systems Ag Device and method for cleaning containers, in particular drums.

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3777151A (en) * 1971-01-14 1973-12-04 Colgate Palmolive Co Method and apparatus for scanning surfaces
DE4118051A1 (en) * 1991-06-01 1992-12-03 Bayer Ag Filling containers using filling system with laser centring arrangement - marking vessel aperture with 3 laser light points before lowering fill valve on jib and carriage mechanism positioned over aperture

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3777151A (en) * 1971-01-14 1973-12-04 Colgate Palmolive Co Method and apparatus for scanning surfaces
DE4118051A1 (en) * 1991-06-01 1992-12-03 Bayer Ag Filling containers using filling system with laser centring arrangement - marking vessel aperture with 3 laser light points before lowering fill valve on jib and carriage mechanism positioned over aperture

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH715544A1 (en) * 2018-11-14 2020-05-15 Moog Cleaning Systems Ag Device and method for cleaning containers, in particular drums.

Also Published As

Publication number Publication date
GB9301867D0 (en) 1993-03-17
GB9401752D0 (en) 1994-03-23

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