WO2013087332A2 - Procédé pour fabriquer un corps de contenant - Google Patents

Procédé pour fabriquer un corps de contenant Download PDF

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Publication number
WO2013087332A2
WO2013087332A2 PCT/EP2012/072617 EP2012072617W WO2013087332A2 WO 2013087332 A2 WO2013087332 A2 WO 2013087332A2 EP 2012072617 W EP2012072617 W EP 2012072617W WO 2013087332 A2 WO2013087332 A2 WO 2013087332A2
Authority
WO
WIPO (PCT)
Prior art keywords
blank
upsetting
container body
edges
forming
Prior art date
Application number
PCT/EP2012/072617
Other languages
German (de)
English (en)
Other versions
WO2013087332A3 (fr
Inventor
Carsten BRECHTLING
Original Assignee
Schuler Pressen Gmbh
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 Schuler Pressen Gmbh filed Critical Schuler Pressen Gmbh
Priority to US14/364,885 priority Critical patent/US20150352624A1/en
Priority to EP12791736.7A priority patent/EP2790847A2/fr
Publication of WO2013087332A2 publication Critical patent/WO2013087332A2/fr
Publication of WO2013087332A3 publication Critical patent/WO2013087332A3/fr

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
    • B21D19/00—Flanging or other edge treatment, e.g. of tubes
    • B21D19/005—Edge deburring or smoothing
    • 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
    • B21D22/22—Deep-drawing with devices for holding the edge of the blanks
    • 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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • 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
    • B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
    • B21D35/001—Shaping combined with punching, e.g. stamping and perforating
    • 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

Definitions

  • the invention relates to a method for producing a container body, which is made of a blank called Ronde seam and joint free.
  • the container body has a cylindrical Be ⁇ container wall, which passes axially at one end in a container ⁇ part which closes the container body, such as a container bottom.
  • the produced container body can thus be axially at one end by the container part CLOSED ⁇ sen, or can have at both ends an opening. At at least one axial end, the container body is open.
  • Such container bodies may for example be produced by extrusion to produce tubes, cans or the like made of metal, for example aluminum, or a metal alloy.
  • the shape of the container body may vary depending on the design of the die and the punch.
  • a flow press for the production of such container bodies is known, for example, from DE 1 402 784 A. Circles or blanks are fed to the extrusion press and positioned between dei ⁇ ner die and a stamp. This stamp presses the board into the matrix. In this case, the material flows against the direction of movement of the stamp around it and thereby also out of the die, wherein between the container body is formed.
  • this backward extrusion process are also Vortexf splitpress- or combined forward-backward extrusion process is known in which the material is finally ⁇ or additionally also in the movement direction of the Stamp flows.
  • Extrusion molding processes for can production are known and have been used for a long time.
  • this stamping burr is not disturbing for the production of the container body since the edge of the container wall opposite the container bottom is cut off anyway after the disk-shaped blank has been formed into the container body. Bumps on this edge, which are formed by the burr, are therefore unproblematic.
  • thermoforming-stripping of blanks to container bodies they are usually picked up by a gripping device and placed between the drawing punch and the die. It may happen that flat superimposed discs stick to each other and accidentally grabbed two rounds and fed to the press. This leads to errors.
  • a disk-shaped blank having a preferably circular contour is first punched out of a metal sheet.
  • the blank can also be referred to as a round blank.
  • the two edges of the blank are removed. compresses. Due to this upsetting process, any existing punching burr is removed.
  • the disk-shaped blank thus obtains a symmetrical shape with respect to a Sym ⁇ metry plane, which runs centrally between the two flat sides of the blank.
  • a subsequent sorting is superfluous.
  • the blank can be transported with any of its two flat sides in a forming position, from which it is then converted, for example, in an extrusion process to the container body.
  • the deformation of the blank in the container body can be done for example by extrusion.
  • the blank may be arranged between a punch in the upper tool of the press and a die in the lower tool of the press.
  • the blank is in the forming position with one of its two flat sides to a support surface of the forming die, which crizspielswei ⁇ se surrounding the die ring.
  • both edges are processed simultaneously.
  • This is a high throughput and an efficient manufacturing process can be achieved.
  • machines for example, machines, as used for Randstau ⁇ chen and / or embossing coins.
  • Such machines are available in the market and can be used very simply for the method according to the invention.
  • the container body preform is preferably made of aluminum, it has been found that the machines used for edge dipping of coins are also suitable for edge dipping of the aluminum blanks stamped for container body production.
  • Aluminum is a very soft material. Nevertheless, an upsetting of the edges to achieve the desired shape could be achieved without adversely affecting the cylindrical disk-shaped Ge ⁇ stalt the Ronde.
  • the blank with its peripheral surface which is bounded by the two edges to be crushed, is preferably rolled on an upsetting tool.
  • an upsetting groove in the upsetting tool is present for this purpose, in which the Ron ⁇ de rolls with the peripheral surface.
  • upsetting the Ronde can be formed at the two edges of a radius, a circumferential chamfer or a ring ⁇ circumferential edge.
  • Such an edge can for example serve to simplify the positioning of the blank in the forming position.
  • FIG. 1 shows a strip-shaped sheet in a schematic representation as a starting material for punching round blanks
  • Figure 2 is a schematic, block-diagram Dar ⁇ position of the punching operation
  • Figure 3 is a partial sectional view of the kingdom Randbe ⁇ a circular blank after punching
  • FIG. 4 shows a first exemplary arrangement for stowing the edges of the blank in a partial representation
  • FIG. 5 shows a second exemplary arrangement for stowing the edge of the blank in a partial representation
  • 6 to 8 show a partial sectional view according ⁇ wells a circular blank after upsetting with different edge shapes
  • 9 to 11 show an exemplary representation of a heavily catalyzed schemati ⁇ extrusion process.
  • the invention relates to a method for producing a container body with an example according to Hohlzylind ⁇ rical shape, which in the preferred embodiment at one axial end open and at the other axial end seamlessly and without joints passes into a container part, which closes the container body.
  • a container body can be produced by extrusion, which is open at both axial ends.
  • the container body is made from a disk-shaped cylindrical blank 10.
  • the blank has a circular contour and is therefore hereinafter referred to as Ronde 10.
  • the blanks 10 are punched out of a metal sheet 11, which consists for example of aluminum.
  • the metal sheet 11 can be handled as a tape-like material from a roll and punched out by means of a punching tool 12, as is illustrated specific ⁇ matic in FIG. 2
  • the blank 10 After punching, the blank 10 has a punched burr 14 on one of its two flat sides 13. This punching burr 14 is irregular and causes a non-symmetrical shape of the blank 10.
  • an upsetting process is carried out to remove the punching burr 14 and to produce a symmetrical shape with respect to a symmetry plane S in the middle between the two flat sides 13.
  • the two annular edges 15, the circumferential surface, the environmental will limit 16 of the blank 10, is compressed and placed in egg ⁇ ne desired shape.
  • Figures 6 to 8 show various embodiments of blanks 10 are ⁇ represents Darge, each round blank 10 has a different shape on edges ⁇ .
  • By upsetting an edge 15, a radius R, a chamfer F or a circumferential projection to form a rim V are formed.
  • the projection or edge V has in the embodiment shown in Figure 6 has a rounded shape and is closed annularly.
  • the ge ⁇ stauchte edge 15 of the blank 10 may be rounded or edge bounded in the circumferential surface 16 and / or override the supplied ⁇ arranged flat side. 13
  • the edge 15 projects all ⁇ recently addition, in any embodiment, on the circumferential surface by the environmental 16 defined cylinder surface.
  • upsetting devices 17 for compressing the two edges 15 of the blank 10 are illustrated schematically.
  • the compression device 17 has an upsetting tool 18 with an upsetting groove 19.
  • the upsetting groove 19 extends along a circle segment. Accordingly, the compression tool 18 may have a ring-segment-like contour.
  • a distance from the upsetting tool 18 and the upset groove 19 is coaxial with the upset groove 19 a drive wheel 20 having a At ⁇ triebsnut 21.
  • the blank 10 is received for upsetting in the drive groove 21 of the drive wheel 20 and deselected along the upset groove 19 of the upsetting tool 18. In order to compress the entire edge 15 of the length of the upset groove 19 corresponds at least to the circumference of the two edges 15 of the blank 10.
  • the cross-sectional shape of the upset groove 19 be ⁇ adjusts the shape of the edge 15 after the swaging process.
  • the blank 10 is clamped during upsetting between the drive wheel 20 and the stationary upsetting tool 18, whereby the two edges 15 deform in the upset groove 19 and adapted to the shape of the upset groove 19.
  • the two embodiments of the compression devices 17 in Figures 4 and 5 operate on the same principle.
  • the drive groove 21 and the Upset groove 19 arranged coaxially to the drive axis of the drive wheel 20.
  • the radius of the compression groove 19 is greater than the radius of the drive ⁇ nut 21.
  • the upset groove 19 has a greater distance from the drive axis of the drive wheel 20, as the drive groove 21.
  • the drive groove 21 and the upset groove 19 axially spaced zuei ⁇ arranged one another and both have the same distance from the drive axle.
  • the two grooves 19, 21 are arranged coaxially with the drive axle.
  • the upsetting tool may in a modification of the first embodiment shown in Figure 4 may be 19 disposed within the drive wheel 20 so that the distance between the upset groove 19 is less to the drive axis than the spacing of the drive groove 21.
  • the upset groove 19 and the drive groove 21 aligned with each other, so that the Ronde 10 engage both in the upset groove 19, and in the on ⁇ driving groove 21 and in both grooves 19, 21 can roll.
  • the blanks 10 are finally transported to a forming device 22, which is shown very schematically simplified in the figures Figure 9 to ll.
  • the blanks 10 are positioned for forming in a forming position P in a die 23 of the forming device 22.
  • To the forming device 22 further includes a punch 24 which is movable relative to the die 23 along its punch longitudinal axis.
  • a stripping device 25 is provided which has an opening 26 through which the plunger 24 protrudes. In the region of the opening, the stripping device 25 on the stamp 24th abut or form a small gap to the lateral surface of the punch 24, which is smaller than the wall thickness ei ⁇ nes from the Ronde 10 reshaped container body 27th
  • a Um ⁇ shaping device 22 for performing a reverse extrusion process is exemplified.
  • the method of the present invention may also be used for forming devices 22 that perform a forward extrusion or a combination of backward and forward extrusion.
  • the punch 24 is moved back away from the die 23. In this reverse movement ⁇ it clips the container body made from 27 at the stripper 25th The container body 27 is then removed from the former 22 and a new blank 10 is inserted into the die 23. The backward extrusion process for producing the container body 27 then begins again.
  • the invention relates to a process for the preparation a container body.
  • a disc-shaped blank is first ⁇ 10 punched out with a circular cylindrical shape from a metal sheet, in particular an aluminum sheet.
  • the two circular edges 15 of the blank 10 are formed in a compression process in a predetermined desired shape.
  • the edge shape defining upset groove 19 of a compression tool 18 from.
  • the blank 10 can be supplied to a forming device 22, therefore without any sorting and Orientie ⁇ tion is required.
  • the blank 10 with any of its two flat sides 13 a punch 23 and a forming die 24 may be facing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Forging (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

L'invention concerne un procédé de fabrication d'un corps de contenant. Selon ce procédé, un flan circulaire (10) à contour cylindrique est découpé dans une tôle métallique, en particulier dans une tôle d'aluminium. Ensuite, les deux bords circulaires (15) du flan (10) sont déformés pour obtenir une forme voulue prédéfinie, lors d'un processus de refoulement. Lors du refoulement, la surface périphérique (16) du flan (10), délimitée par les deux bords (15), roule dans une rainure de refoulement (19) d'un outil de refoulement (18), cette rainure déterminant la forme des bords, ce qui permet d'obtenir une forme symétrique par rapport à un plan de symétrie (S) s'étendant entre les deux côtés plans du flan (10). Le flan (10) peut ensuite être introduit dans un dispositif de formage (22), sans nécessiter de tri, ni d'orientation spécifique. Ainsi, le flan peut être orienté vers une matrice (23) ou un poinçon de formage (24) par l'un quelconque de ses côtés plats (13). Par conséquent, il est possible d'introduire le flan (10) selon deux dispositions différentes en position de formage (P) dans le dispositif de formage (22) sans nuire au processus de formage, ni au corps de contenant.
PCT/EP2012/072617 2011-12-15 2012-11-14 Procédé pour fabriquer un corps de contenant WO2013087332A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US14/364,885 US20150352624A1 (en) 2011-12-15 2012-11-14 Method For Producing A Container Body
EP12791736.7A EP2790847A2 (fr) 2011-12-15 2012-11-14 Procédé pour fabriquer un corps de contenant

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011056462.4A DE102011056462B4 (de) 2011-12-15 2011-12-15 Verfahren zur Herstellung eines Behälterkörpers
DE102011056462.4 2011-12-15

Publications (2)

Publication Number Publication Date
WO2013087332A2 true WO2013087332A2 (fr) 2013-06-20
WO2013087332A3 WO2013087332A3 (fr) 2013-08-29

Family

ID=47257781

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/072617 WO2013087332A2 (fr) 2011-12-15 2012-11-14 Procédé pour fabriquer un corps de contenant

Country Status (4)

Country Link
US (1) US20150352624A1 (fr)
EP (1) EP2790847A2 (fr)
DE (1) DE102011056462B4 (fr)
WO (1) WO2013087332A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019134680A1 (de) * 2019-12-17 2021-06-17 Kme Germany Gmbh Verfahren zur Herstellung eines Lotdepots sowie Lotdepot

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1402784A1 (de) 1961-01-11 1969-02-13 Schuler Gmbh L Liegende Fliessdruckpresse
DE2308132A1 (de) 1973-02-19 1974-08-22 Krupp Gmbh Anlage zum herstellen von dosen aus metall
DE102010000094A1 (de) 2010-01-15 2011-07-21 Schuler Pressen GmbH & Co. KG, 73033 Werkzeug und Verfahren zur Herstellung von Dosenkörpern

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE795263A (fr) * 1972-02-11 1973-05-29 K M Engineering A G Procede de fabrication sans enlevement de copeaux de recipients en tole d'acier
US4606206A (en) * 1985-01-30 1986-08-19 Motor Wheel Corporation Method and apparatus for edge preparation of spinning blanks
US5394727A (en) * 1993-08-18 1995-03-07 Aluminum Company Of America Method of forming a metal container body
DE19843760A1 (de) * 1998-09-24 2000-03-30 Schuler Pressen Gmbh & Co Prägevorrichtung zum Randprägen von Ronden
WO2001015829A1 (fr) * 1999-08-30 2001-03-08 Daiwa Can Company Procede de production pour une boite en metal de type bouteille et outil de formage
US20040035871A1 (en) * 2002-08-20 2004-02-26 Thomas Chupak Aluminum aerosol can and aluminum bottle and method of manufacture
US7464575B2 (en) * 2004-10-13 2008-12-16 Nakamura Seisakusho Kabushikigaisha Shearing method for thin plate

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1402784A1 (de) 1961-01-11 1969-02-13 Schuler Gmbh L Liegende Fliessdruckpresse
DE2308132A1 (de) 1973-02-19 1974-08-22 Krupp Gmbh Anlage zum herstellen von dosen aus metall
DE102010000094A1 (de) 2010-01-15 2011-07-21 Schuler Pressen GmbH & Co. KG, 73033 Werkzeug und Verfahren zur Herstellung von Dosenkörpern

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2790847A2

Also Published As

Publication number Publication date
DE102011056462B4 (de) 2014-08-28
WO2013087332A3 (fr) 2013-08-29
DE102011056462A1 (de) 2013-06-20
US20150352624A1 (en) 2015-12-10
EP2790847A2 (fr) 2014-10-22

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