EP0864385B1 - Rétreint de diamètre d'une boíte à paroi étirée - Google Patents

Rétreint de diamètre d'une boíte à paroi étirée Download PDF

Info

Publication number
EP0864385B1
EP0864385B1 EP98200450A EP98200450A EP0864385B1 EP 0864385 B1 EP0864385 B1 EP 0864385B1 EP 98200450 A EP98200450 A EP 98200450A EP 98200450 A EP98200450 A EP 98200450A EP 0864385 B1 EP0864385 B1 EP 0864385B1
Authority
EP
European Patent Office
Prior art keywords
necked
necking
neck
wall
rim
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.)
Expired - Lifetime
Application number
EP98200450A
Other languages
German (de)
English (en)
Other versions
EP0864385A2 (fr
EP0864385A3 (fr
Inventor
Auke Hogendoorn
Jacobus Frans Nak
Hans Nicolaas Schaaper
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.)
Tata Steel Ijmuiden BV
Original Assignee
Corus Staal BV
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 Corus Staal BV filed Critical Corus Staal BV
Publication of EP0864385A2 publication Critical patent/EP0864385A2/fr
Publication of EP0864385A3 publication Critical patent/EP0864385A3/fr
Application granted granted Critical
Publication of EP0864385B1 publication Critical patent/EP0864385B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B21D51/2615—Edge treatment of cans or tins

Definitions

  • the invention relates to a method for manufacturing a metal, body-necked can with an ironed wall, for example one intended for being provided on one open side with an easily opening lid in order thereby to form a beverage can, comprising the stages of reducing the diameter of the can with the ironed wall by necking the wall up a considerable part of the height of the can, to be referred to as body-necking, and applying a neck rim by necking the top rim of the can.
  • EP 0 733 415 A1 discloses the manufacturing of a beverage can comprising a body with zones having different diameters by drawing a cup from a blank, reducing the diameter thereof by a restraining operation and thereafter locally increasing the diameter by an expanding operation.
  • the diameter of the rudimentary can body is firstly reduced. Then an expanding process is used to give the can a different shape e.g. in a shaping mould. In order to complete the beverage can subsequently a neck rim is formed at the top of the can to which the lid can be fitted.
  • This gap is taken to be the gap located between the knock-out and the die.
  • the can rim fits precisely in that gap.
  • the can rim is thicker than the can wall so that it has sufficient deforming reserve to be necked.
  • the knock-out diameter is adapted to that thicker can rim. If the knock-out diameter were adapted to the can wall thickness, then the gap would be too small for the can rim. Therefore, adapting the knock-out diameter to the can rim thickness means that the gap is too large for the can wall, so that the chance of the can wall wrinkling increases (see Fig. 1).
  • the neck applied for body-necking gives the can body rigidity and holds it under tension so that wrinkling is prevented during body-necking.
  • the method in accordance with the invention makes it possible to body-neck without a knock-out.
  • the body because of the axial loading of the can during body-necking, the body must be supported during body-necking by applying an internal overpressure.
  • a centring pin is used with a diameter equal to the internal neck diameter of the can.
  • the internal diameter of the can neck is then approx. 52.3 mm.
  • the invention is also embodied in a method for manufacturing a shaped can by inflating a can which is obtained by applying the method in accordance with one of the Claims 1-4.
  • the material After pressure loads have been introduced in the material by body-necking, the material is better able to stretch and the can is able to be formed to a considerable extent, for example by inflating.
  • the method in accordance with the invention has been found highly suitable for cans manufactured from a packaging steel suited to wall-ironing, and manufactured from an aluminium alloy suited to wall-ironing.
  • Fig. 1 shows schematically the result of three sub-processes a, b and c of the method in accordance with the invention.
  • Fig. la shows a wall-ironed can with a ⁇ 66 mm which in Fig. lb is transformed into a necked can with a 202 neck and a flange.
  • the 202 necked can is body-necked in a die (1) into a circular cylindrical body with an outside diameter of less than ⁇ 63.5 mm or even less than ⁇ 62 mm.
  • a hollow centring pin (2) with an outside diameter equal to the internal neck diameter of the can, the can is placed under an internal overpressure for example by using compressed air.
  • Fig. 2 shows schematically the inflating procedure in a shaping mould (3) of the body-necked, wall-ironed, circular cylindrical body from Fig. 1c into a shaped can.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
  • Connection Or Junction Boxes (AREA)
  • Artificial Fish Reefs (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Claims (5)

  1. Procédé de fabrication d'une boíte en métal à corps rétreint et à paroi étirée, par exemple destinée à être munie, sur un côté ouvert, d'un couvercle à ouverture facile pour former de ce fait une boíte boisson, comprenant les étapes consistant à réduire le diamètre de la boíte à paroi étirée en rétreignant la paroi sur une partie considérable de la hauteur de la boíte, opération appelée rétreint de corps, et à appliquer un bord de col en rétreignant le bord supérieur de la boíte, caractérisé en ce que, avant de lui faire subir le rétreint de corps, on la rétreint d'abord au niveau de son bord supérieur.
  2. Procédé selon la revendication 1, caractérisé en ce que le rétreint de corps est exécuté avec un éjecteur de forme cylindrique circulaire et dont le diamètre extérieur correspond au diamètre intérieur du bord de col.
  3. Procédé selon l'une des revendications précédentes, caractérisé en ce que l'on rétreint une boíte de 66 mm de diamètre pour former un col de 53,98 mm de diamètre, et en ce qu'on lui fait subir ensuite un rétreint de corps pour former un corps cylindrique circulaire dont le diamètre extérieur est inférieur à 63,5 mm.
  4. Procédé selon l'une des revendications précédentes, caractérisé en ce que l'on rétreint une boíte de 66 mm de diamètre pour former un col de 53,98 mm de diamètre, et en ce qu'on lui fait subir ensuite un rétreint de corps pour former un corps cylindrique circulaire dont le diamètre extérieur est inférieur à 62 mm.
  5. Procédé de fabrication d'une boíte façonnée, en faisant gonfler une boíte obtenue en appliquant le procédé selon l'une des revendications 1 à 4.
EP98200450A 1997-02-21 1998-02-13 Rétreint de diamètre d'une boíte à paroi étirée Expired - Lifetime EP0864385B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1005340A NL1005340C2 (nl) 1997-02-21 1997-02-21 Bodynecken wandgestrekte bus.
NL1005340 1997-02-21

Publications (3)

Publication Number Publication Date
EP0864385A2 EP0864385A2 (fr) 1998-09-16
EP0864385A3 EP0864385A3 (fr) 1998-10-14
EP0864385B1 true EP0864385B1 (fr) 2002-12-11

Family

ID=19764469

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98200450A Expired - Lifetime EP0864385B1 (fr) 1997-02-21 1998-02-13 Rétreint de diamètre d'une boíte à paroi étirée

Country Status (7)

Country Link
EP (1) EP0864385B1 (fr)
AT (1) ATE229388T1 (fr)
BR (1) BR9800710A (fr)
DE (1) DE69809983D1 (fr)
NL (1) NL1005340C2 (fr)
TR (1) TR199800283A1 (fr)
ZA (1) ZA981433B (fr)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6253597B1 (en) 1988-02-19 2001-07-03 Corus Staal B.V. Body-necking a wall-ironed can
NL1012126C2 (nl) * 1999-05-21 2000-11-23 Corus Staal Bv Gebruik van trekspanning voor het omvormen van een mantelvlakvormig metalen voorwerp.
US8016148B2 (en) 2006-07-12 2011-09-13 Rexam Beverage Can Company Necked-in can body and method for making same
USD619458S1 (en) 2008-04-30 2010-07-13 Rexam Beverage Can Company Container body
USD639164S1 (en) 2008-04-30 2011-06-07 Rexam Beverage Can Company Container body
USD619459S1 (en) 2008-04-30 2010-07-13 Rexam Beverage Can Company Container body
USD622145S1 (en) 2008-04-30 2010-08-24 Rexam Beverage Can Company Container body
USD619457S1 (en) 2008-04-30 2010-07-13 Rexam Beverage Can Company Container body
USD620360S1 (en) 2008-04-30 2010-07-27 Rexam Beverage Can Company Container body
USD638708S1 (en) 2008-04-30 2011-05-31 Rexam Beverage Can Company Container body
USD607754S1 (en) 2008-10-22 2010-01-12 Rexam Beverage Can Company Container body
USD621723S1 (en) 2009-01-27 2010-08-17 Rexam Beverage Can Company Beverage container
USD625616S1 (en) 2009-01-27 2010-10-19 Rexam Beverage Can Company Beverage container
USD670167S1 (en) 2010-06-17 2012-11-06 Rexam Beverage Can Europe Limited Container with cap
USD675527S1 (en) 2010-06-17 2013-02-05 Rexam Beverage Can Europe Limited Container with closure
USD684483S1 (en) 2010-06-17 2013-06-18 Rexam Beverage Can Europe Limited Container
USD707568S1 (en) 2011-07-15 2014-06-24 Rexam Beverage Can Company Container body
USD712753S1 (en) 2011-07-15 2014-09-09 Rexam Beverage Can Company Container
USD707569S1 (en) 2011-07-15 2014-06-24 Rexam Beverage Can Company Container body
USD713267S1 (en) 2011-07-15 2014-09-16 Rexam Beverage Can Company Container
USD745397S1 (en) 2013-03-13 2015-12-15 Rexam Beverage Can Company Bottle
USD745398S1 (en) 2013-03-13 2015-12-15 Rexam Beverage Can Company Bottle
USD745399S1 (en) 2013-03-13 2015-12-15 Rexam Beverage Can Company Bottle
USD744833S1 (en) 2013-03-13 2015-12-08 Rexam Beverage Can Company Bottle
USD745396S1 (en) 2013-03-13 2015-12-15 Rexam Beverage Can Company Bottle
EP2859966A1 (fr) 2013-10-08 2015-04-15 Ardagh MP Group Netherlands B.V. Récipient métallique façonné et son procédé de fabrication

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3786957A (en) * 1971-03-22 1974-01-22 Continental Can Co Double stage necking
US5355710A (en) * 1992-07-31 1994-10-18 Aluminum Company Of America Method and apparatus for necking a metal container and resultant container
FR2731929B1 (fr) * 1995-03-21 1997-06-13 Lorraine Laminage Procede de fabrication d'une boite metallique de forme

Also Published As

Publication number Publication date
ZA981433B (en) 1998-08-24
EP0864385A2 (fr) 1998-09-16
ATE229388T1 (de) 2002-12-15
EP0864385A3 (fr) 1998-10-14
DE69809983D1 (de) 2003-01-23
TR199800283A1 (xx) 1998-09-21
NL1005340C2 (nl) 1998-08-26
BR9800710A (pt) 1999-06-15

Similar Documents

Publication Publication Date Title
EP0864385B1 (fr) Rétreint de diamètre d'une boíte à paroi étirée
US5394727A (en) Method of forming a metal container body
US4341103A (en) Spin-necker flanger for beverage containers
US5209099A (en) Draw-process methods, systems and tooling for fabricating one-piece can bodies
US4715208A (en) Method and apparatus for forming end panels for containers
US4991735A (en) Pressure resistant end shell for a container and method and apparatus for forming the same
US4685322A (en) Method of forming a drawn and redrawn container body
EP0661119B1 (fr) Procédé et appareil pour rétrécir à plusieurs étages des corps de boîtes
US9849500B2 (en) Can manufacture
US5297414A (en) Method for necking containers
US5622070A (en) Method of forming a contoured container
KR950011255B1 (ko) 금속 단부 유니트 성형용 다이 조립체 및 금속 단부 유니트 성형 방법
HU188156B (en) Method for producing thin-walled one-section metal bodies first for pressure vessels and the hollow metal body produced by the method
IE52072B1 (en) Containers
AU2011212400B2 (en) Can manufacture
US3423985A (en) Stripper and pre-draw ring for wall-ironing can bodies
US6253597B1 (en) Body-necking a wall-ironed can
EP2464576A1 (fr) Conversion d'un récipient existant à partie supérieure ouverte en une boîte pouvant être refermée
GB2202777A (en) Method of producing a neck-in can
EP1109635B1 (fr) Procede de production de corps de boites et de boites remplies et fermees
AU707477B2 (en) Method of fabricating sheet metal can body
JPH08108235A (ja) アルミニウム合金ｄｉ缶の製造法及びその装置
WO2000064609A1 (fr) Procede de formation d'un corps de boite
JP2003245731A (ja) アイオニングダイ

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE DK ES FR GB IT LI NL SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 19990414

AKX Designation fees paid

Free format text: AT BE CH DE DK ES FR GB IT LI NL SE

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: CORUS STAAL BV

17Q First examination report despatched

Effective date: 20010328

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FR GB IT LI NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20021211

Ref country code: LI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20021211

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT

Effective date: 20021211

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021211

Ref country code: CH

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20021211

Ref country code: BE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20021211

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20021211

REF Corresponds to:

Ref document number: 229388

Country of ref document: AT

Date of ref document: 20021215

Kind code of ref document: T

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 69809983

Country of ref document: DE

Date of ref document: 20030123

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20030311

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030311

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20030311

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20030312

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20030627

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20030311

EN Fr: translation not filed
26N No opposition filed

Effective date: 20030912