EP0864385B1 - Rétreint de diamètre d'une boíte à paroi étirée - Google Patents
Rétreint de diamètre d'une boíte à paroi étirée Download PDFInfo
- 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
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)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Connection Or Junction Boxes (AREA)
- Artificial Fish Reefs (AREA)
Claims (5)
- 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.
- 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.
- 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.
- 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.
- 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.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL1005340 | 1997-02-21 | ||
NL1005340A NL1005340C2 (nl) | 1997-02-21 | 1997-02-21 | Bodynecken wandgestrekte bus. |
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)
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 |
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 |
USD639164S1 (en) | 2008-04-30 | 2011-06-07 | 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 |
USD619458S1 (en) | 2008-04-30 | 2010-07-13 | 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 |
USD712753S1 (en) | 2011-07-15 | 2014-09-09 | Rexam Beverage Can Company | Container |
USD713267S1 (en) | 2011-07-15 | 2014-09-16 | Rexam Beverage Can Company | Container |
USD707569S1 (en) | 2011-07-15 | 2014-06-24 | Rexam Beverage Can Company | Container body |
USD707568S1 (en) | 2011-07-15 | 2014-06-24 | Rexam Beverage Can Company | Container body |
USD745397S1 (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 |
USD745399S1 (en) | 2013-03-13 | 2015-12-15 | Rexam Beverage Can Company | Bottle |
USD745396S1 (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 |
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)
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 |
-
1997
- 1997-02-21 NL NL1005340A patent/NL1005340C2/nl not_active IP Right Cessation
-
1998
- 1998-02-13 AT AT98200450T patent/ATE229388T1/de not_active IP Right Cessation
- 1998-02-13 DE DE69809983T patent/DE69809983D1/de not_active Expired - Lifetime
- 1998-02-13 EP EP98200450A patent/EP0864385B1/fr not_active Expired - Lifetime
- 1998-02-19 BR BR9800710A patent/BR9800710A/pt not_active IP Right Cessation
- 1998-02-20 ZA ZA981433A patent/ZA981433B/xx unknown
- 1998-02-20 TR TR1998/00283A patent/TR199800283A1/xx unknown
Also Published As
Publication number | Publication date |
---|---|
BR9800710A (pt) | 1999-06-15 |
ZA981433B (en) | 1998-08-24 |
DE69809983D1 (de) | 2003-01-23 |
TR199800283A1 (xx) | 1998-09-21 |
NL1005340C2 (nl) | 1998-08-26 |
EP0864385A2 (fr) | 1998-09-16 |
EP0864385A3 (fr) | 1998-10-14 |
ATE229388T1 (de) | 2002-12-15 |
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 |