EP1519802A1 - Verfahren zur herstellung eines dosenk rpers und eines decke lringes - Google Patents
Verfahren zur herstellung eines dosenk rpers und eines decke lringesInfo
- Publication number
- EP1519802A1 EP1519802A1 EP03735576A EP03735576A EP1519802A1 EP 1519802 A1 EP1519802 A1 EP 1519802A1 EP 03735576 A EP03735576 A EP 03735576A EP 03735576 A EP03735576 A EP 03735576A EP 1519802 A1 EP1519802 A1 EP 1519802A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ring
- cylindrical
- preform
- lid
- cover
- 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.)
- Granted
Links
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
- B21D51/38—Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S72/00—Metal deforming
- Y10S72/715—Method of making can bodies
Definitions
- the invention relates to a method for producing a zylinderformigen, seamless can body and a cover ring made of metal, wherein the connectable to the opening edge of a can body lid ring delimits a removal opening and on the cover ring to form a can lid a removal opening overlapping closure membrane is attachable, in which method a cylindrical ring is formed into a lid ring.
- a flat sheet metal part is first formed into a cylindrical tube.
- the axially extending edges of the tube are pressed together and welded together, which takes place by means of a laser beam and leads to the formation of a butt weld seam.
- the tube is then divided into equal length tube sections or cylindrical rings.
- Each cylindrical ring is formed into a lid ring having a crimp rim for attachment to a can body and to an annular support surface for later attachment of the closure membrane.
- the two above-mentioned methods for producing a cover ring starting from a cylindrically shaped ring have the advantage of a significantly reduced scrap fraction compared with the classic cover ring production, in which first a sheet metal disk is formed and then punched out to form the cover ring removal opening.
- the invention has for its object to provide a method of the type mentioned, with which the scrap content in the production of can bodies and cover rings can be further reduced.
- the idea underlying the method according to the invention of providing a cylindrical ring for producing a cover ring in the manufacture of a can body leads to the desired minimization of the scrap fraction, which is limited to trimming the opening edge of the can body preform thus produced and which does not increase is the fraction of scrap resulting from the production of seamless can bodies.
- the inventive method can be integrated with little investment in an existing production line. In the simplest case, only the arrangement of a second knife or another cutting or separating device at a distance from the existing trimming device is required.
- the separated from the can body preform cylindrical ring is preferably formed into a cover ring with a bead for fixing on the opening edge of a can body and with a lying in the top plane annular surface for fastening the closure membrane.
- the cylindrical ring in this case has a larger material thickness and a larger diameter than the end-molded can body.
- the cylindrical ring is separated from the can body preform only after complete molding of the can body preform and after trimming the opening edge of the can body preform.
- Suitable metals for carrying out the process according to the invention are all metals known for can production, such as aluminum, steel or white sheet. These metals can also be painted or reshaped with a plastic coating of, for example, polypropylene.
- the cover ring does not necessarily have to be used together with the can body produced by this method. It can be used in one- or two-piece can bodies made of different metals or also in can bodies made of materials other than metal, for example of plastic or of coated board materials.
- a particularly preferred method relates to the production of a cylindrical, seamless can body made of metal with associated can lid, the can lid having a connectable to the opening edge of the can body, a removal opening bounding lid ring and a lid on the lid ring arranged, the discharge opening overlapping closure membrane comprises, in which method a cylindrical ring is formed into a lid ring.
- the method is characterized in that a cylindrical, seamless can body preform made and the cylindrical ring after trimming the opening edge of the can body preform is separated therefrom, wherein the height of Dosenkö ⁇ ervorform is set so that the can body is formed when separating the zylinderformigen ring.
- the separated from a can body preform cylindrical ring or the cover ring produced therefrom does not necessarily have to be used together with the can body made from the same Dosenkö ⁇ ervorform. Rather, in practice, a separate processing of the can body and the cylindrical rings and the later disordered merging of can bodies and made of the cylinder-shaped rings lid rings may be an expedient process variant.
- FIG. 1 is a side view of a can body preform with earing
- FIG. 2 is a side view of the can body preform of FIG. 1 with cut-off corners;
- FIG. 3 is a side view of the can body preform of FIG. 2 with a further separated cylindrical ring;
- FIG. FIG. 4 shows the partial section through a cover ring produced from the cylindrical ring of FIG. 3;
- FIG. 5 shows the partial section through the cover ring of Fig. 4 with sealed sealing membrane.
- a can body preform 10 shown in FIG. 1 has a one-sided with a nem integral bottom 14 closed cylinder-shaped can body 12 in the form of a cylindrical pipe piece.
- the can body preform 10 can be made in known manner from a metal disc or blank by single or multi-stage deep drawing, ironing, ironing, extrusion, and other massive forming processes. In these methods, the bottom 14 integrally formed on the can body 12 results as the remainder of the metal disk used as a blank after the forming thereof.
- tinplate, chromed steel sheet or aluminum sheet can be used in a known manner.
- a cylindrical ring 18 is separated from the can body preform 10.
- the initial height of the can body preform 10 is selected so that after trimming and separating the zylinderformigen ring 18 of the remaining remainder of Dosenkö ⁇ ervorform 10 corresponds to the desired can body 20, ie the sum of the height ho of the can body 20 and the height fi R of the zylinderformigen ring 18 results in the total height h g of the can body preform 10 after the trimming of the edge of the can body preform 10 or after removal of the tip 16.
- the cylindrical ring 18 is formed in a known manner by a plurality of successive Umformoperationen to the cover ring 22 shown in Fig. 4.
- the cover ring 22 has a conventional bead 24, the free end the edge formed by the first horizontal section a corresponds.
- the beading 24 merges into a horizontal annular surface 26.
- the inner edge 28 of the removal opening 30 delimiting annular surface 26 is to eliminate a risk of injury and to increase the rigidity of the cover ring 22 with radially outwardly directed cutting edge, which corresponds to the resulting by the second horizontal section b edge, rolled up.
- the cover ring of Fig. 4 is provided with a sealing membrane 32.
- the sealing membrane 32 rests against the annular surface 26 and is connected thereto via an adhesive or sealing layer 34.
- the material used for the sealing membrane 32 is, for example, a foil made of aluminum or of sheet steel, which may optionally have a heat-sealable coating.
- the closure membrane 32 may be provided with a tear tab 36 on. In this case, the seal between the sealing membrane 32 and annular surface 26 is adjusted so that the sealing membrane from the annular surface or from the sealing edge by peeling (peeling) can be removed.
- the closure membrane 32 is inseparably connected to the lid ring 22. In this case, the membrane is pierced to the opening and removed along the inner edge of the annular surface 26 from the cover ring 22.
- the cover ring 22 provided with the closure membrane 32 is crimped onto the opening edge 21 of the can body 20 after the filling of a filling material as a can lid 38.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Closures For Containers (AREA)
- Rigid Containers With Two Or More Constituent Elements (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03735576A EP1519802B1 (de) | 2002-06-27 | 2003-06-07 | Verfahren zur herstellung eines dosenkörpers und eines deckelringes |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02405547A EP1375025A1 (de) | 2002-06-27 | 2002-06-27 | Verfahren zur Herstellung eines Dosenkörpers und eines Deckelringes |
EP02405547 | 2002-06-27 | ||
PCT/EP2003/006003 WO2004002649A1 (de) | 2002-06-27 | 2003-06-07 | Verfahren zur herstellung eines dosenkörpers und eines deckelringes |
EP03735576A EP1519802B1 (de) | 2002-06-27 | 2003-06-07 | Verfahren zur herstellung eines dosenkörpers und eines deckelringes |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1519802A1 true EP1519802A1 (de) | 2005-04-06 |
EP1519802B1 EP1519802B1 (de) | 2008-03-26 |
Family
ID=29717002
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02405547A Withdrawn EP1375025A1 (de) | 2002-06-27 | 2002-06-27 | Verfahren zur Herstellung eines Dosenkörpers und eines Deckelringes |
EP03735576A Expired - Lifetime EP1519802B1 (de) | 2002-06-27 | 2003-06-07 | Verfahren zur herstellung eines dosenkörpers und eines deckelringes |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02405547A Withdrawn EP1375025A1 (de) | 2002-06-27 | 2002-06-27 | Verfahren zur Herstellung eines Dosenkörpers und eines Deckelringes |
Country Status (8)
Country | Link |
---|---|
US (1) | US7506529B2 (de) |
EP (2) | EP1375025A1 (de) |
AU (1) | AU2003236717A1 (de) |
DE (1) | DE50309476D1 (de) |
DK (1) | DK1519802T3 (de) |
ES (1) | ES2299706T3 (de) |
MY (1) | MY138191A (de) |
WO (1) | WO2004002649A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1918041A1 (de) * | 2006-10-31 | 2008-05-07 | Crown Packaging Technology, Inc | Metallischer Verschluss mit Deckel und Verfahren zur Herstellung eines solchen metallischen Verschlusses mit gesonderten Deckel und Deckelring aus einem einzigen Verschlussrohling |
US8636161B2 (en) | 2008-03-20 | 2014-01-28 | Crown Packaging Technology, Inc. | Closure |
DE102011056846B4 (de) * | 2011-12-22 | 2014-05-28 | Thyssenkrupp Rasselstein Gmbh | Verfahren zur Herstellung eines Aufreißdeckels sowie Verwendung eines mit einer Schutzschicht versehenen Stahlblechs zur Herstellung eines Aufreißdeckels |
WO2021176112A1 (es) * | 2020-03-04 | 2021-09-10 | Auxiliar Conservera S.A. | Método de fabricación conjunta de envase de lata y su tapa con membrana central desprendible |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3428010A (en) * | 1967-02-03 | 1969-02-18 | Continental Can Co | Method of making a metallic can and cover |
NL8301069A (nl) * | 1983-03-28 | 1984-10-16 | Hoogovens Groep Bv | Driedelige metalen verpakkingsbus, halfprodukt voor de vervaardiging van deze bus, en een werkwijze voor de vervaardiging van metalen verpakkingsbussen. |
NL8401834A (nl) * | 1984-06-08 | 1986-01-02 | Thomassen & Drijver | Werkwijze en inrichting voor het vervaardigen van een romp voor een houder, en een vervaardigde romp of houder. |
JPH0538526A (ja) * | 1991-08-05 | 1993-02-19 | Toyota Motor Corp | 素材円筒部のしごきトリミング法 |
DE4332306A1 (de) | 1993-09-23 | 1995-03-30 | Rasselstein Ag | Verfahren zur Herstellung eines leicht zu öffnenden Dosendeckels aus Blech |
DE19527291C2 (de) * | 1995-07-26 | 1997-05-07 | Vaw Ver Aluminium Werke Ag | Verfahren zur Herstellung eines Konservenbehälters |
DE19625174B4 (de) * | 1996-06-24 | 2008-05-15 | IMPRESS Metal Packaging S.A., Crosmières | Deckelringfertigung ohne Rondenverschnitt |
DE19837779A1 (de) * | 1998-08-20 | 2000-03-02 | Vaw Ver Aluminium Werke Ag | Verfahren zur Herstellung eines verschließbaren Behälters |
DE10022553C1 (de) | 2000-05-10 | 2001-07-05 | Rasselstein Hoesch Gmbh | Verfahren zum Herstellen eines Ringteils aus Blech für einen Dosendeckel |
-
2002
- 2002-06-27 EP EP02405547A patent/EP1375025A1/de not_active Withdrawn
-
2003
- 2003-05-29 MY MYPI20031991A patent/MY138191A/en unknown
- 2003-06-07 WO PCT/EP2003/006003 patent/WO2004002649A1/de active IP Right Grant
- 2003-06-07 DK DK03735576T patent/DK1519802T3/da active
- 2003-06-07 US US10/516,116 patent/US7506529B2/en not_active Expired - Lifetime
- 2003-06-07 ES ES03735576T patent/ES2299706T3/es not_active Expired - Lifetime
- 2003-06-07 EP EP03735576A patent/EP1519802B1/de not_active Expired - Lifetime
- 2003-06-07 DE DE50309476T patent/DE50309476D1/de not_active Expired - Lifetime
- 2003-06-07 AU AU2003236717A patent/AU2003236717A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO2004002649A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP1375025A1 (de) | 2004-01-02 |
EP1519802B1 (de) | 2008-03-26 |
AU2003236717A1 (en) | 2004-01-19 |
US20050166658A1 (en) | 2005-08-04 |
US7506529B2 (en) | 2009-03-24 |
DE50309476D1 (de) | 2008-05-08 |
WO2004002649A1 (de) | 2004-01-08 |
ES2299706T3 (es) | 2008-06-01 |
DK1519802T3 (da) | 2008-04-21 |
MY138191A (en) | 2009-05-29 |
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