EP0743255A1 - Procédé de fabrication d'un récipient sous pression à deux compartiments - Google Patents

Procédé de fabrication d'un récipient sous pression à deux compartiments Download PDF

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Publication number
EP0743255A1
EP0743255A1 EP95107633A EP95107633A EP0743255A1 EP 0743255 A1 EP0743255 A1 EP 0743255A1 EP 95107633 A EP95107633 A EP 95107633A EP 95107633 A EP95107633 A EP 95107633A EP 0743255 A1 EP0743255 A1 EP 0743255A1
Authority
EP
European Patent Office
Prior art keywords
inner body
outer shell
edge
ring
flanged edge
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
Application number
EP95107633A
Other languages
German (de)
English (en)
Other versions
EP0743255B1 (fr
Inventor
Gerd Stoffel
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to EP95107633A priority Critical patent/EP0743255B1/fr
Priority to ES95107633T priority patent/ES2130465T3/es
Priority to DK95107633T priority patent/DK0743255T3/da
Priority to AT95107633T priority patent/ATE179132T1/de
Publication of EP0743255A1 publication Critical patent/EP0743255A1/fr
Application granted granted Critical
Publication of EP0743255B1 publication Critical patent/EP0743255B1/fr
Priority to GR990401867T priority patent/GR3030780T3/el
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
    • B65D83/60—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant with contents and propellant separated
    • B65D83/62—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant with contents and propellant separated by membranes, bags or the like
    • 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
    • B21D51/24—Making hollow objects characterised by the use of the objects high-pressure containers, e.g. boilers, bottles
    • 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
    • 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
    • B21D51/2623—Curling

Definitions

  • the invention relates to a method for producing a two-chamber pressure pack with an outer casing, with which an inner body made of fold-forming or crushable material is connected in the region of an adhesion promoter layer, the outer sheath, adhesion promoter layer and inner body being folded around an opening together to form a flanged edge.
  • the present invention is based on the object of further improving this known and best-proven method, in particular with respect to the tightness, the manufacture and the appearance of the flanged edge.
  • a ring is removed from the outer casing and, if necessary, the inner body before folding over to a flanged edge.
  • this ring has been folded between the actual opening edge and the beginning of the adhesion promoter layer or the edge of the inner body to the flanged edge, with part of the adhesion promoter layer or the inner body often being flanged at the same time. Since this ring is usually made of bare material, it comes into contact with the flanging tool, so that there is a risk of cold welding here. Furthermore, during the manufacture of the inner body, adhesive lugs often emerge from the edge of the inner body in this ring area and contaminate the flanging tool and the flanging edge.
  • the present invention overcomes all of these disadvantages. By removing the ring of the outer shell preferably up to the edge of the bonding agent or the inner body or even beyond, there are no tabs of the bonding agent on the flanged edge and the bare metal of the outer shell is directly exposed to the attack of the flanging tool.
  • the rolling of the flanged edge causes the inner body to be pressed firmly against the adhesive layer or the outer shell in its upper edge, so that the wrinkles caused by the retraction are completely eliminated.
  • the two-chamber pressure pack that is produced by this method according to the invention has an extraordinarily high level of tightness, which demonstrates the advantage of this method according to the invention.
  • the ring is preferably milled off, but all possible other removal methods are also conceivable.
  • a two-chamber pressure pack R consists of an outer shell 1 and an inner body 2.
  • the inner body 2 is connected to the outer shell 1 only in a certain upper region a via an adhesion promoter layer 3. Otherwise, an inner space 4 is formed between the inner body 2 and the outer shell 1, which is filled with a pressure medium through a hole 5 in a curved bottom 6.
  • the inner body 2 serves to receive a product to be dispensed from a valve which is not shown for the sake of clarity.
  • This valve or a valve cover, in which the valve is seated, is placed on a flange 7.
  • This two-chamber pressure pack R is produced in accordance with EP-A 0 326 052 and FIG. 1 as follows:
  • the outer shell 1 is drawn from a metal blank 8, in particular from an aluminum blank. For example, this is done by a known deep-drawing or extrusion process. During the process or afterwards, the bottom 6 is simultaneously bulged and the bottom hole 5 is either punched out or only pre-punched, so that in the latter case, a punched blank is pressed out by a later pressurizing of the bottom 6 and the hole 5 is produced.
  • the bottom 6 does not have to be arched, it can also remain flat. However, an arched floor 6 has proven to be more favorable when the interior 4 is pressurized.
  • an edge region 9 of the outer casing 1 is widened in order to be able to better fit the outer casing 1 onto a mandrel in a further working step.
  • adhesion promoter is then applied, for example sprayed, in an area a to an outer surface 10 of the inner shell 1 or outer surface of the inner body 2.
  • Various adhesives or plastics can be considered as adhesion promoters.
  • the inner body 2 is introduced or produced.
  • This inner body 2 consists of any thin, crushable material, such as a plastic or a thin metal, in particular aluminum foil.
  • This inner body 2 can be introduced as a whole into the outer shell 1, or it is sprayed, filled or the like. There are also many methods here which are encompassed by the present invention.
  • the inner body 2 is fixed by the adhesive layer 3 in the area a on the outer shell 1, while it is otherwise not connected to the inner surface 10 inside the outer shell 1.
  • An edge 11 of the inner body 2 ends at a distance b from an opening edge 12 of the outer shell 1. At this distance b there is neither an adhesion promoter nor material of the inner body 2.
  • the product to be dispensed can be filled into the inner body 2 and an opening 13 of the two-chamber pressure pack R can be closed with a valve.
  • the interior 4 is also pressurized through the hole 5, a pre-punched round blank possibly being broken out of the hole 5 by this pressurization of the interior 4.
  • an upper ring 14 is subsequently removed from the opening edge 12, preferably up to the edge 11 or even beyond.
  • the removal is preferably done by milling, but other options, such as cutting, are also conceivable.
  • this ring 14 is widened. However, this is not absolutely necessary, since an expansion in this sense is not absolutely necessary for the further process.
  • the outer casing 1 is drawn in together with the inner body 2, as is known, and the flanged edge 7 is produced.
  • the drawing in takes place by a higher number of drawing stages than in the prior art, wrinkling and thus leakage between the outer casing 1 and the inner body 2 being avoided.
  • this re-rolling tool E has a rolling ring 15 with a circumferential groove 16 for the flanged edge 7 of the two-chamber pressure pack 8.
  • the circumferential groove 16 has a contour which is modeled on the contour of the flange 7.
  • the rolling ring 15 is seated on a ball bearing 17 of a shaft 18 which is screwed into a shaft block 19 and secured by a nut 20.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Closing Of Containers (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
  • Packages (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Paper (AREA)
  • Stored Programmes (AREA)
EP95107633A 1995-05-19 1995-05-19 Procédé de fabrication d'un récipient sous pression à deux compartiments Expired - Lifetime EP0743255B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP95107633A EP0743255B1 (fr) 1995-05-19 1995-05-19 Procédé de fabrication d'un récipient sous pression à deux compartiments
ES95107633T ES2130465T3 (es) 1995-05-19 1995-05-19 Procedimiento para la fabricacion de un envase a presion de doble camara.
DK95107633T DK0743255T3 (da) 1995-05-19 1995-05-19 Fremgangsmåde til fremstilling af en tokammer-trykemballage
AT95107633T ATE179132T1 (de) 1995-05-19 1995-05-19 Verfahren zum herstellen einer zweikammer- druckpackung
GR990401867T GR3030780T3 (en) 1995-05-19 1999-07-14 Method to produce a dual-compartment pressurized pack

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP95107633A EP0743255B1 (fr) 1995-05-19 1995-05-19 Procédé de fabrication d'un récipient sous pression à deux compartiments

Publications (2)

Publication Number Publication Date
EP0743255A1 true EP0743255A1 (fr) 1996-11-20
EP0743255B1 EP0743255B1 (fr) 1999-04-21

Family

ID=8219262

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95107633A Expired - Lifetime EP0743255B1 (fr) 1995-05-19 1995-05-19 Procédé de fabrication d'un récipient sous pression à deux compartiments

Country Status (5)

Country Link
EP (1) EP0743255B1 (fr)
AT (1) ATE179132T1 (fr)
DK (1) DK0743255T3 (fr)
ES (1) ES2130465T3 (fr)
GR (1) GR3030780T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10239648B2 (en) 2014-10-28 2019-03-26 Ball Metalpack, Llc Apparatus and method for forming a cup with a reformed bottom
US10315242B2 (en) 2014-10-15 2019-06-11 Ball Metalpack, Llc Apparatus and method for simultaneously forming a contoured shoulder and neck portion in a closed end of a metallic container

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2239696A (en) * 1936-05-29 1941-04-29 Mullins Mfg Corp Method and apparatus for forming the rims of cylindrical shells
EP0326052A2 (fr) * 1988-01-27 1989-08-02 Gerd Stoffel Procédé de fabrication d'un joint d'étanchéité entre deux chambres sous pression
EP0469774A1 (fr) * 1990-07-28 1992-02-05 CarnaudMetalbox plc Procédé de fabrication de boîtes à parois étirées
EP0547982A1 (fr) * 1991-12-17 1993-06-23 Cebal S.A. Procédé de fabrication d'un corps de distributeur à poche en métal, corps de distributeur et distributeur correspondant

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2239696A (en) * 1936-05-29 1941-04-29 Mullins Mfg Corp Method and apparatus for forming the rims of cylindrical shells
EP0326052A2 (fr) * 1988-01-27 1989-08-02 Gerd Stoffel Procédé de fabrication d'un joint d'étanchéité entre deux chambres sous pression
EP0469774A1 (fr) * 1990-07-28 1992-02-05 CarnaudMetalbox plc Procédé de fabrication de boîtes à parois étirées
EP0547982A1 (fr) * 1991-12-17 1993-06-23 Cebal S.A. Procédé de fabrication d'un corps de distributeur à poche en métal, corps de distributeur et distributeur correspondant

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10315242B2 (en) 2014-10-15 2019-06-11 Ball Metalpack, Llc Apparatus and method for simultaneously forming a contoured shoulder and neck portion in a closed end of a metallic container
US10239648B2 (en) 2014-10-28 2019-03-26 Ball Metalpack, Llc Apparatus and method for forming a cup with a reformed bottom

Also Published As

Publication number Publication date
ATE179132T1 (de) 1999-05-15
ES2130465T3 (es) 1999-07-01
GR3030780T3 (en) 1999-11-30
EP0743255B1 (fr) 1999-04-21
DK0743255T3 (da) 1999-10-25

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