EP2391466B1 - Alimentation de machine à rétreindre - Google Patents

Alimentation de machine à rétreindre Download PDF

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Publication number
EP2391466B1
EP2391466B1 EP09782357.9A EP09782357A EP2391466B1 EP 2391466 B1 EP2391466 B1 EP 2391466B1 EP 09782357 A EP09782357 A EP 09782357A EP 2391466 B1 EP2391466 B1 EP 2391466B1
Authority
EP
European Patent Office
Prior art keywords
turret
infeed
pockets
waxer
rollers
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.)
Active
Application number
EP09782357.9A
Other languages
German (de)
English (en)
Other versions
EP2391466A1 (fr
Inventor
Daniel Egerton
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 Packaging Technology Inc
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 Packaging Technology Inc filed Critical Crown Packaging Technology Inc
Publication of EP2391466A1 publication Critical patent/EP2391466A1/fr
Application granted granted Critical
Publication of EP2391466B1 publication Critical patent/EP2391466B1/fr
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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
    • B21D51/2692—Manipulating, e.g. feeding and positioning devices; Control systems

Definitions

  • This invention relates to necker infeed for metal can manufacture and, in particular to the introduction of can bodies to a necker assembly for reducing the diameter of an open end of a can body.
  • An infeed to a die necking process comprises a row of can bodies, in which the can bodies contact each other.
  • the can bodies thus have a "pitch" (i.e. the distance between their centres) of one can diameter.
  • the can bodies are fed from this infeed to an infeed turret of the die necking machine.
  • Each turret on the die necking machine has a number of pockets, each pocket being adapted to receive and retain a can body, for example by vacuum.
  • the pockets to carry the can bodies on the infeed turret are separated by a (pocket) pitch. The closer this pocket pitch is to the can body diameter the better the feed onto the infeed turret. This can be achieved by having a large number of pockets on the infeed turret so as to bring the pockets closer together.
  • the infeed turret is fitted in combination with a waxer turret.
  • the waxer turret is required for applying a protective film of lubricant to the outside of each can body so as to reduce the friction as the can enters the tooling.
  • the waxer turret has a pair of rubber rollers which are used to rotate the can about its own axis.
  • the rollers hold the can on the theoretical pitch circle radius of the turret.
  • the rollers are made of resilient rubber since, if the rollers were of soft rubber, the can would be able to deflect the rollers and move around.
  • the infeed will work with a different number of pockets on infeed and transfer turrets. It is only the presence of waxer rollers, which may cause a problem with this type of dual turret infeed.
  • An alternative solution is to offset the turrets from each other slightly so that the can is able to pass "in front" of the rollers at the transfer point. The can is then guided onto the waxer turret.
  • This solution has been provided on a dual turret infeed, having 15 pockets on the infeed turret and 12 pockets on the waxer turret. The offset is introduced due to the different number of pockets together with the presence of the waxer rollers.
  • Feeding cans directly to the waxer turret has also been tried in US-5,206,054 but in the case of a large increase in pitch from infeed trackwork to waxer turret this was unsuccessful, because as the waxer turret grabs a can out of the infeed trackwork and takes it away for processing, following cans are able to squeeze past the back of the pocket on the waxer. This means that either the cans are picked up 'too far down' in the trackwork, leading to dented cans, or in the worst case, two cans could be fed simultaneously.
  • an infeed assembly for a can necking apparatus, the infeed assembly having an infeed turret and a waxer turret and in which the infeed assembly further includes a transfer turret between the infeed turret and the waxer turret, the number of pockets on the transfer turret being the same as the number of pockets on the waxer turret.
  • the waxer turret includes a pair of rollers for each pocket position.
  • the infeed turret may have a substantially larger number of pockets for holding can bodies than the number of pockets on the transfer turret, ideally twice the number of pockets as the number of pockets on the transfer turret.
  • the distance between the centres of the pockets on the infeed turret is ideally as close as possible to the diameter of can bodies which, in use, are handled by the assembly.
  • FIG. 1 depicts a 16 pocket infeed turret 10 and a can 5 passing from a pocket 12 on the infeed turret to a pocket 14 on a waxer turret 20.
  • the waxer turret 20 has a pair of rollers 16 for each of 12 pocket positions. These rollers are used to turn the can about its own axis for even application of the wax.
  • the can touches the rubber rollers 16 too early. This would result in the crushing of the can, necessitating shutdown of the entire machine.
  • FIG. 1 An alternative to the prototype of figure 1 is to match the number of pockets on the infeed turret to the number on the waxer turret as shown in figure 2 .
  • the infeed turret 15 of figure 2 has 12 pockets 18, as does the waxer turret 25.
  • the can 5 meshes cleanly with the rollers 16 of the waxer turret.
  • more pockets on the infeed turret gives a better result, so that this is not the optimum solution.
  • Turret 30 will be referred to as the "infeed turret”
  • turret 40 will be referred to as the “infeed transfer turret”
  • turret 50 is the "waxer turret”.
  • Cans enter the triple turret assembly via a chute 32 and are guided around S-shaped rail 34 around the turrets.
  • a vacuum may be used to aid retention of the cans.
  • the infeed turret 30 in the example of figure 3 has twelve pockets 36, the infeed transfer turret 40 has six pockets 46 and the waxer turret 50 also has six pockets 56. Although the waxer turret pockets 56 are less easy to see than the pockets of the other turrets in figure 3 , a pair of rollers 58 are apparent for each pocket position. The cans are then transferred from the waxer turret 50 into the first necking turret.

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Specific Conveyance Elements (AREA)

Claims (5)

  1. Assemblage d'alimentation pour un appareil de rétreinte de boîtes, l'assemblage d'alimentation comportant une tourelle d'alimentation (30) et une tourelle de polissage (50) et caractérisé en ce que l'assemblage d'alimentation englobe en outre une tourelle de transfert (40) entre la tourelle d'alimentation (30) et la tourelle de polissage (50), le nombre de poches (46) sur la tourelle de transfert (40) étant identique au nombre de poches (56) sur la tourelle de polissage (50).
  2. Assemblage d'alimentation selon la revendication 1, dans lequel la tourelle de polissage (50) englobe une paire de rouleaux (58) pour chaque position de poche.
  3. Assemblage d'alimentation selon les revendications 1 ou 2, dans lequel la tourelle d'alimentation (30) comporte un nombre de poches (36) pour retenir les corps de boîte sensiblement supérieur au nombre de poches (46) sur la tourelle de transfert (40).
  4. Assemblage d'alimentation selon l'une quelconque des revendications 1 à 3, dans lequel la tourelle d'alimentation (30) comporte un nombre de poches (36) représentant le double du nombre de poches (46) sur la tourelle de transfert (40).
  5. Assemblage d'alimentation selon l'une quelconque des revendications 1 à 4, dans lequel la distance entre les centres des poches (36) sur la tourelle d'alimentation (30) est aussi proche que possible du diamètre des corps des boites, qui sont en service manipulés par l'assemblage.
EP09782357.9A 2008-09-05 2009-08-28 Alimentation de machine à rétreindre Active EP2391466B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0816167A GB0816167D0 (en) 2008-09-05 2008-09-05 Necker infeed
PCT/EP2009/061161 WO2010026115A1 (fr) 2008-09-05 2009-08-28 Alimentation de machine à rétreindre

Publications (2)

Publication Number Publication Date
EP2391466A1 EP2391466A1 (fr) 2011-12-07
EP2391466B1 true EP2391466B1 (fr) 2016-03-23

Family

ID=39888806

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09782357.9A Active EP2391466B1 (fr) 2008-09-05 2009-08-28 Alimentation de machine à rétreindre

Country Status (3)

Country Link
EP (1) EP2391466B1 (fr)
GB (1) GB0816167D0 (fr)
WO (1) WO2010026115A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101823447B1 (ko) 2010-03-15 2018-01-30 크라운 팩키징 테크놀러지, 인코포레이티드 컨테이너 제조
US11534817B2 (en) * 2018-05-11 2022-12-27 Stolle Machinery Company, Llc Infeed assembly full inspection assembly
IT202100006041A1 (it) * 2021-03-15 2022-09-15 Ima Spa Dispositivo e metodo di cambio passo tra contenitori.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5206054A (en) * 1989-04-11 1993-04-27 Coors Brewing Company Apparatus and method for applying a coating to a can body
US6510938B1 (en) * 2000-11-28 2003-01-28 Delaware Capital Formation, Inc. Soft touch infeed
US7886894B2 (en) * 2006-03-31 2011-02-15 Belvac Production Machinery, Inc. Method and apparatus for bottle recirculation

Also Published As

Publication number Publication date
WO2010026115A1 (fr) 2010-03-11
EP2391466A1 (fr) 2011-12-07
GB0816167D0 (en) 2008-10-15

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