EP1188499A1 - Procede et dispositif de remise en forme de la base de canettes - Google Patents

Procede et dispositif de remise en forme de la base de canettes Download PDF

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Publication number
EP1188499A1
EP1188499A1 EP00308036A EP00308036A EP1188499A1 EP 1188499 A1 EP1188499 A1 EP 1188499A1 EP 00308036 A EP00308036 A EP 00308036A EP 00308036 A EP00308036 A EP 00308036A EP 1188499 A1 EP1188499 A1 EP 1188499A1
Authority
EP
European Patent Office
Prior art keywords
shaft
roller
cam
base
shafts
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Withdrawn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
EP00308036A
Other languages
German (de)
English (en)
Inventor
designation of the inventor has not yet been filed The
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.)
Crown Packaging Technology Inc
Original Assignee
Crown Cork and Seal Technologies Corp
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
Application filed by Crown Cork and Seal Technologies Corp filed Critical Crown Cork and Seal Technologies Corp
Priority to EP00308036A priority Critical patent/EP1188499A1/fr
Priority to EP01984631A priority patent/EP1328360A1/fr
Priority to US10/380,266 priority patent/US20030177803A1/en
Priority to PCT/EP2001/010384 priority patent/WO2002022287A1/fr
Priority to AU2002223021A priority patent/AU2002223021A1/en
Publication of EP1188499A1 publication Critical patent/EP1188499A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00—Making hollow objects
    • B21D51/16—Making hollow objects characterised by the use of the objects
    • B21D51/26—Making hollow objects characterised by the use of the objects cans or tins; Closing same in a permanent manner
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/20—Deep-drawing
    • B21D22/30—Deep-drawing to finish articles formed by deep-drawing

Definitions

  • This invention relates to a method and apparatus for reforming the base of a container.
  • it relates to a method and apparatus for reforming the base profile of a can having a one-piece can body used for packaging carbonated beverages.
  • Such so-called “beverage cans” typically comprise a side wall, a transition region and a base including a stand bead, an annular inner wall and a substantially dome-shaped centre panel.
  • the base formed by the dome station usually has a radially inwardly tapering inner wall for ease of removal from the domer.
  • this inner wall at least to a vertical profile or, more usefully, to a negative angle, or a hooked or beaded profile.
  • dome growth is thus a particular problem when the can needs to withstand pasteurisation pressures, such as is the case when the product is beer, for example.
  • Dome reversal pressure is the pressure at which internal pressure from a carbonated beverage, for example, will cause the dome-shaped centre panel to reverse its shape completely from externally concave to externally convex.
  • Internal base profile reforming involves the direct application of a roll against the inner wall so as to reform part or all of that wall to a specific new profile.
  • Internal base profile reforming tooling which is currently available uses complex mechanisms which have a very high rate of wear. This wear is particularly costly in terms of replacement tool parts and, if components are not replaced, will lead to variability in the very profile which is critical to the can's performance. Furthermore, because the tooling is complex, there are typically adjustments which need to be made in the factory to maintain consistency of the reformed profile.
  • This invention seeks to provide a solution to these problems which may be used for both internal and external base profile reforming.
  • an apparatus for reforming the base profile of a can comprising: a roller for forming a desired new profile on the can base; and first and second concentric shafts, the first shaft rotating the roller relative to the can, and the second shaft actuating the roller to move radially to engage the can when there is a speed differential between the shafts.
  • the shafts rotate in the same direction. Since the apparatus uses continuous rotation in the same direction instead of forward and back as in known base reforming apparatus, the mechanism is very simple. By using full rotation, there is no setting required by the factory and the reformed profile is more consistent and the apparatus exhibits less wear.
  • the apparatus further comprises a cam or an eccentric for actuating the roller to move radially.
  • the cam or eccentric may be fixed to the second shaft and one or more cam followers may be mounted on the first shaft. Such mounting may be directly or indirectly.
  • the cam follower or followers is/are fixed to a support block which is attached to the first shaft via linear bearings.
  • the apparatus is one of a plurality of base profile reforming apparatus each of which is fixed at stations around a rotatable turret machine.
  • the first shaft rotates +/- two rotations relative to the second shaft in one machine rotation.
  • the first shaft may rotate at six times machine speed and the second shaft may rotate at four times machine speed, or vice versa.
  • the actual machine speed is not relevant to the invention. What is essential to the radial movement of the roller is the differential speed between the two shafts.
  • the cam is shaped to control the radial movement of the roller so that there is no need for a separate end stop component, for example.
  • the apparatus may be used for either internal or external base profile reforming.
  • a method of reshaping the base profile of a can comprising: providing a roller for forming a desired new profile on the can base; providing first and second concentric shafts; rotating the roller relative to the can by means of the first shaft; actuating the roller to move radially to engage the can by driving the first and second shafts at different speeds.
  • Figures 1 to 5 show an apparatus for internal base profile reforming of a beverage can having a domed base.
  • the apparatus comprises a base support 1 for supporting a can (not shown) and a profiled roller 5 for reforming the internal base profile.
  • Shafts A and B are concentric, a support block 6 holding the reform roller 5 and being joined to the end of shaft A by linear bearings 7, 8.
  • the drawings show the linear bearings as linear ball bearings. Alternative bearings such as crossed roller bearings may be ideally used.
  • a cam 10 is mounted on inner shaft B and rotates between cam followers 12, 14 which are in turn mounted on the support block 6. Concentric shafts A and B are connected to gears A' and B' respectively.
  • the apparatus is surrounded by a housing 9.
  • Profiled roller 5 is rotated about the can centre by shaft A and gear A to reform the internal base profile.
  • the can remains stationary, although this is not essential to the invention.
  • gears A' and B' drive shafts A and B respectively to rotate.
  • shafts A and B will rotate in the same direction but at different speeds. Since the cam 10 is fixed to shaft B, cam 10 rotates at the same rotational speed as shaft B.
  • the reformed can shape is set in the tooling. There is therefore no factory setting to be made. Continuous rotation of the shafts and rolling rather than sliding contact reduces wear in comparison with known base profile reformers. Further simplification of the cam design can be made by adding compliance to either or both cam followers. Typically spring loading of the return cam follower against the cam is appropriate.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)
EP00308036A 2000-09-15 2000-09-15 Procede et dispositif de remise en forme de la base de canettes Withdrawn EP1188499A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP00308036A EP1188499A1 (fr) 2000-09-15 2000-09-15 Procede et dispositif de remise en forme de la base de canettes
EP01984631A EP1328360A1 (fr) 2000-09-15 2001-09-08 Reformage de la base de boites-boissons
US10/380,266 US20030177803A1 (en) 2000-09-15 2001-09-08 Can base reforming
PCT/EP2001/010384 WO2002022287A1 (fr) 2000-09-15 2001-09-08 Reformage de la base de boites-boissons
AU2002223021A AU2002223021A1 (en) 2000-09-15 2001-09-08 Can base reforming

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00308036A EP1188499A1 (fr) 2000-09-15 2000-09-15 Procede et dispositif de remise en forme de la base de canettes

Publications (1)

Publication Number Publication Date
EP1188499A1 true EP1188499A1 (fr) 2002-03-20

Family

ID=8173261

Family Applications (2)

Application Number Title Priority Date Filing Date
EP00308036A Withdrawn EP1188499A1 (fr) 2000-09-15 2000-09-15 Procede et dispositif de remise en forme de la base de canettes
EP01984631A Withdrawn EP1328360A1 (fr) 2000-09-15 2001-09-08 Reformage de la base de boites-boissons

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP01984631A Withdrawn EP1328360A1 (fr) 2000-09-15 2001-09-08 Reformage de la base de boites-boissons

Country Status (4)

Country Link
US (1) US20030177803A1 (fr)
EP (2) EP1188499A1 (fr)
AU (1) AU2002223021A1 (fr)
WO (1) WO2002022287A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10934104B2 (en) 2018-05-11 2021-03-02 Stolle Machinery Company, Llc Infeed assembly quick change features
US11097333B2 (en) 2018-05-11 2021-08-24 Stolle Machinery Company, Llc Process shaft tooling assembly
US11117180B2 (en) 2018-05-11 2021-09-14 Stolle Machinery Company, Llc Quick change tooling assembly
US11208271B2 (en) 2018-05-11 2021-12-28 Stolle Machinery Company, Llc Quick change transfer assembly
US11370015B2 (en) 2018-05-11 2022-06-28 Stolle Machinery Company, Llc Drive assembly
US11420242B2 (en) 2019-08-16 2022-08-23 Stolle Machinery Company, Llc Reformer assembly
US11534817B2 (en) 2018-05-11 2022-12-27 Stolle Machinery Company, Llc Infeed assembly full inspection assembly
US11565303B2 (en) 2018-05-11 2023-01-31 Stolle Machinery Company, Llc Rotary manifold

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6419110B1 (en) 2001-07-03 2002-07-16 Container Development, Ltd. Double-seamed can end and method for forming
US7263868B2 (en) * 2003-04-03 2007-09-04 Ball Corporation Method and apparatus for reforming and reprofiling a bottom portion of a container
US6837089B2 (en) * 2003-04-03 2005-01-04 Ball Corporation Method and apparatus for reforming and reprofiling a bottom portion of a container
US20060071005A1 (en) 2004-09-27 2006-04-06 Bulso Joseph D Container end closure with improved chuck wall and countersink
US7506779B2 (en) 2005-07-01 2009-03-24 Ball Corporation Method and apparatus for forming a reinforcing bead in a container end closure
US8727169B2 (en) 2010-11-18 2014-05-20 Ball Corporation Metallic beverage can end closure with offset countersink

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5704241A (en) * 1994-01-31 1998-01-06 Delaware Capital Formation, Inc. Method and apparatus for inside can base reforming
GB2332160A (en) * 1997-12-10 1999-06-16 Crown Cork & Seal Tech Corp Can base reforming

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5835031A (ja) * 1981-08-27 1983-03-01 Nissan Motor Co Ltd 歯面の追加工装置
US4399679A (en) * 1981-11-02 1983-08-23 Ethyl Products Company Method and apparatus for threading closures
MX9101632A (es) * 1990-10-22 1992-06-05 Ball Corp Metodo y aparato para reforzar la base o fondo de un recipiente
US5222385A (en) * 1991-07-24 1993-06-29 American National Can Company Method and apparatus for reforming can bottom to provide improved strength
US5706686A (en) * 1994-01-31 1998-01-13 Delaware Capital Formation, Inc. Method and apparatus for inside can base reforming
US6461265B1 (en) * 2000-02-02 2002-10-08 Ex-Cello Machine Tools, Inc. Coaxial gear box

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5704241A (en) * 1994-01-31 1998-01-06 Delaware Capital Formation, Inc. Method and apparatus for inside can base reforming
GB2332160A (en) * 1997-12-10 1999-06-16 Crown Cork & Seal Tech Corp Can base reforming

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10934104B2 (en) 2018-05-11 2021-03-02 Stolle Machinery Company, Llc Infeed assembly quick change features
US11097333B2 (en) 2018-05-11 2021-08-24 Stolle Machinery Company, Llc Process shaft tooling assembly
US11117180B2 (en) 2018-05-11 2021-09-14 Stolle Machinery Company, Llc Quick change tooling assembly
US11208271B2 (en) 2018-05-11 2021-12-28 Stolle Machinery Company, Llc Quick change transfer assembly
US11370015B2 (en) 2018-05-11 2022-06-28 Stolle Machinery Company, Llc Drive assembly
US11534817B2 (en) 2018-05-11 2022-12-27 Stolle Machinery Company, Llc Infeed assembly full inspection assembly
US11565303B2 (en) 2018-05-11 2023-01-31 Stolle Machinery Company, Llc Rotary manifold
US11420242B2 (en) 2019-08-16 2022-08-23 Stolle Machinery Company, Llc Reformer assembly

Also Published As

Publication number Publication date
EP1328360A1 (fr) 2003-07-23
WO2002022287A1 (fr) 2002-03-21
AU2002223021A1 (en) 2002-03-26
US20030177803A1 (en) 2003-09-25

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