EP0326052A2 - Method of making a pressure sealing between two chambers - Google Patents

Method of making a pressure sealing between two chambers Download PDF

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Publication number
EP0326052A2
EP0326052A2 EP89101075A EP89101075A EP0326052A2 EP 0326052 A2 EP0326052 A2 EP 0326052A2 EP 89101075 A EP89101075 A EP 89101075A EP 89101075 A EP89101075 A EP 89101075A EP 0326052 A2 EP0326052 A2 EP 0326052A2
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EP
European Patent Office
Prior art keywords
inner body
outer body
chamber pressure
opening
pressure pack
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
EP89101075A
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German (de)
French (fr)
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EP0326052B1 (en
EP0326052A3 (en
Inventor
Gerd Stoffel
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Individual
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Individual
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Priority to AT89101075T priority Critical patent/ATE83953T1/en
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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
    • 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
    • B21D51/2638—Necking

Definitions

  • the invention relates to a method for producing a two-chamber pressure pack with an outer body, which encloses a pressurizable interior and forms an opening through which an inner body made of fold-forming or crushable material is used.
  • Such two-chamber pressure packs are generally used today as a replacement for the known pressure containers with propellant gas.
  • the medium is discharged from the inner body by pressurizing the interior of the outer body.
  • the medium to be dispensed therefore does not come into contact with this pressure medium, but is expressed by changing the inner body through a valve.
  • These known two-chamber pressure packs consist essentially of three parts, namely the outer body, for example an aluminum sleeve with a bottom, the inner body, for example a very thin aluminum sleeve and a funnel, which is placed on the mouth edge of the inner and outer body and surrounds it in a sealing manner. The corresponding valve is then inserted in the center of this disk-shaped funnel.
  • Attaching the funnel to the mouth edges of the inner and outer body means a considerable amount of work, since this has to be done by hand.
  • the funnel is rolled or flanged together with the mouth edges. That is why he needs a certain place. Since the valve itself usually also requires a diameter of 25 mm, the openings of today's two-chamber pressure packs must have a total diameter of around 40-65 mm. In between, only two-chamber pressure packs with graduated dimensions are used.
  • the inventor has set itself the goal of developing a method of the type mentioned above, by means of which the attachment of the additional funnel becomes superfluous, in which the interior of the outer body can be kept absolutely tight and in which two-chamber pressure packs with different opening diameters from 1 Customs, d. H. can be produced from 25.4 mm.
  • the outer body and inner body are connected to one another in a predetermined area before flanging or the like.
  • connection is preferably made by welding, gluing, shaping or the like.
  • a coating has proven to be the best here, which is applied either to the outer body or to the inner body or to both in the connection region before the inner body is inserted into the outer body.
  • This coating for example a suitable adhesive, can then dry so that the inner body is inserted into the outer body without changing the coating.
  • the two-chamber pressure pack preferably passes through an oven in which the coating is liquefied. This already creates a certain connection between the inner body and the outer body.
  • the inner body since the inner body generally maintains a certain distance from the outer body in order to be surrounded by sufficient pressure medium in the position of use, it has proven to be advisable to insert a tool into the opening of the two-chamber pressure pack, via which the inner body in the corresponding connection area is pressed against the outer body.
  • This tool can be heated so that the coating is liquefied or kept in motion by this heat.
  • the mouth edges are then flanged, this preferably being done by rolling.
  • the two-chamber pressure pack now only needs to be filled with the medium to be dispensed and the valve put on, through which the space of the inner body is now sealed, and the propellant gas has to be supplied via a bottom hole.
  • This method according to the invention also has the advantage that both the outer body and the inner body can be printed, varnished or the like before the flanging.
  • all standard interior protective lacquers can be used.
  • the flanging can be done by means of an automatic machine, so that considerable labor is saved.
  • a two-chamber pressure pack P has a sleeve-shaped outer body 1, which in the present exemplary embodiment essentially consists of a cylinder jacket 2 and a base cover 3.
  • This outer body 1 can, for example, be produced from an aluminum blank in the extrusion or deep-drawing process.
  • the bottom cover 3 has a bore 4 through which the interior I can be pressurized. After this process, the bore 4 can be closed.
  • An inner body 6 is inserted into a cylinder opening 5 beyond the bottom cover 3 of the outer body 1.
  • This inner body 6 also has a cylinder jacket 7 and a closed bottom cover 8.
  • this inner body 6 consists of a relatively thin aluminum, so that it can be crushed with the formation of folds.
  • Cylinder jacket 7 and base cover 8 enclose a space R, which in the position of use serves to receive a medium to be dispensed.
  • the inner body 6 maintains a distance a from the cylinder jacket 2 of the outer body 1 over long distances.
  • inner body 6 or its cylinder jacket 7 is connected to cylinder jacket 2 in area b.
  • the connection is made, for example, by welding, gluing, laser welding, shaping or the like.
  • This preliminary stage of a two-chamber pressure pack according to the invention is produced as follows:
  • the outer body 1 is drawn from an aluminum blank.
  • the hole 4 is made in the bottom cover 3 and the cylinder jacket 2 is covered or welded with a coating 9 of an adhesive over the region b.
  • the inner body 6 is inserted, the coating 9 being solidified so that it does not hinder insertion.
  • the two-chamber pressure pack P now passes through an oven in which the coating 9 is liquefied. As a result, a connection between cylinder jacket 2 and cylinder jacket 7 is already initiated. However, the correct connection produces a heated tool which is inserted through the cylinder opening 5 and presses the cylinder jacket 7 in region b against the cylinder jacket 2.
  • the next processing stage is shown in FIG. 2.
  • the bottom cover 3 is deformed so that it can withstand an internal pressure in the interior I and does not bulge.
  • cylinder jacket 2 and cylinder jacket 7 are flanged outwards in the region of the cylinder opening 5, so that a flanged edge 10 is created.
  • cylinder jacket 2 and cylinder jacket 7 are simultaneously pulled inwards in a specific area.
  • the space R of the inner body 6 is now filled with the substance to be dispensed and the cylinder opening 5 is closed by a cover with a valve, not shown. This lid seals the flange 10.
  • the interior I of the outer body 1 is then pressurized through the bore 4, the bore 4 then being closed.
  • the inner body 6 is pressurized, so that when the valve is actuated, the medium is discharged from the space R of the inner body 6 through the valve, while the inner body 6 yields to the same extent to the pressure in the interior of the outer body 1 and crumples .

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  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Gasket Seals (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Joining Of Glass To Other Materials (AREA)
  • Glass Compositions (AREA)
  • Nozzles (AREA)
  • Packages (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Particle Formation And Scattering Control In Inkjet Printers (AREA)
  • Closures For Containers (AREA)
  • Press Drives And Press Lines (AREA)

Abstract

Bei einem Verfahren zum Herstellen einer Zweikammer-­Druckpackung (P) mit einem Außenkörper (1), der einen druckbe­aufschlagbaren Innenraum (I) umschließt und eine Öffnung (5) ausbildet, wird durch diese Öffnung ein Innenkörper (6) aus faltenbildendem bzw. knautschbarem Material eingesetzt. Außenkörper (1) und Innenkörper (6) werden vor einem Bördeln od. dgl. der Öffnung, einem Befüllen des Innenkörpers und einem Anbringen eines Ventils im Mündungsbereich in einem vorbestimmten Bereich (B) miteinander verbunden und sodann zusammen zu einem Bördelrand umgelegt.

Figure imgaf001
In a method for producing a two-chamber pressure pack (P) with an outer body (1) which encloses a pressurizable interior (I) and forms an opening (5), an inner body (6) made of wrinkle-forming or crushable material becomes through this opening used. The outer body (1) and inner body (6) are connected to one another in a predetermined area (B) before flanging or the like. The opening, filling the inner body and attaching a valve and then folded together to form a flanged edge.
Figure imgaf001

Description

Die Erfindung betrifft ein Verfahren zum Herstellen einer Zweikammer-Druckpackung mit einem Außenkörper, der einen druckbeaufschlagbaren Innenraum umschließt und eine Öffnung ausbildet, durch die ein Innenkörper aus faltenbildendem bzw. knautschbarem Material eingesetzt wird.The invention relates to a method for producing a two-chamber pressure pack with an outer body, which encloses a pressurizable interior and forms an opening through which an inner body made of fold-forming or crushable material is used.

Derartige Zweikammer-Druckpackungen werden heute in der Regel als Ersatz für die bekannten Druckbehälter mit Treibgas verwendet. Das Ausbringen des Mediums aus dem Innenkörper geschieht durch die Druckbeaufschlagung des Innenraums des Außenkörpers. Das auszubringende Medium gelangt deshalb nicht in Kontakt mit diesem Druck­medium, sondern wird durch Veränderung des Innenkörpers durch ein Ventil ausgedrückt.Such two-chamber pressure packs are generally used today as a replacement for the known pressure containers with propellant gas. The medium is discharged from the inner body by pressurizing the interior of the outer body. The medium to be dispensed therefore does not come into contact with this pressure medium, but is expressed by changing the inner body through a valve.

Diese bekannten Zweikammer-Druckpackungen bestehen im wesentlichen aus drei Teilen, nämlich dem Außenkörper, beispielsweise einer Aluminiumhülse mit Boden, dem Innenkörper, beispielsweise einer sehr dünnen Alumi­niumhülse sowie einem Trichter, welcher auf den Mün­dungsrand von Innen- und Außenkörper aufgesetzt ist und diesen abdichtend umschließt. In diesen scheibenför­migen Trichter ist dann mittig das entsprechende Ventil eingesetzt.These known two-chamber pressure packs consist essentially of three parts, namely the outer body, for example an aluminum sleeve with a bottom, the inner body, for example a very thin aluminum sleeve and a funnel, which is placed on the mouth edge of the inner and outer body and surrounds it in a sealing manner. The corresponding valve is then inserted in the center of this disk-shaped funnel.

Gerade das Anbringen des Trichters auf die Mündungs­ränder von Innen- und Außenkörper bedeutet einen erheblichen Arbeitsaufwand, da dieses von Hand ge­schehen muß. Der Trichter wird zusammen mit den Mün­dungsrändern gerollt oder gebördelt. Deshalb benötigt er einen bestimmten Platz. Da das Ventil selbst ebenfalls in der Regel 25 mm Durchmesser benötigt, müssen die Öffnungen der heutigen Zweikammer-Druck­packungen insgesamt etwa 40-65 mm Durchmesser aufweisen. Dazwischen finden lediglich Zwei­kammer-Druckpackungen mit abgestuften Bemaßungen Anwen­dung.Attaching the funnel to the mouth edges of the inner and outer body means a considerable amount of work, since this has to be done by hand. The funnel is rolled or flanged together with the mouth edges. That is why he needs a certain place. Since the valve itself usually also requires a diameter of 25 mm, the openings of today's two-chamber pressure packs must have a total diameter of around 40-65 mm. In between, only two-chamber pressure packs with graduated dimensions are used.

Der Erfinder hat sich zum Ziel gesetzt, ein Verfahren der oben genannten Art zu entwickeln, mittels welchem das Anbringen des zusätzlichen Trichters überflüssig wird, bei welchem der Innenraum des Außenkörpers absolut dicht gehalten werden kann und bei welchem Zweikammer-Druckpackungen mit unterschiedlichen Öff­nungsdurchmessern bereits ab 1 Zoll, d. h. ab 25,4 mm hergestellt werden können.The inventor has set itself the goal of developing a method of the type mentioned above, by means of which the attachment of the additional funnel becomes superfluous, in which the interior of the outer body can be kept absolutely tight and in which two-chamber pressure packs with different opening diameters from 1 Customs, d. H. can be produced from 25.4 mm.

Zur Lösung dieser Aufgabe führt, daß der Außenkörper und Innenkörper vor einem Bördeln od. dgl. der Öffnung, einem Befüllen des Innenkörpers und einem Anbringen eines Ventils im Mündungsbereich in einem vorbestimmten Bereich miteinander verbunden und sodann zusammen zu einem Bördelrand umgelegt werden.To achieve this object, the outer body and inner body are connected to one another in a predetermined area before flanging or the like. The opening, filling the inner body and attaching a valve and then folded together to form a flanged edge.

Dies bedeutet, daß bereits vor der Erzeugung des Bördelrandes eine leckagenfreie Verbindung zwischen Innenkörper und Außenkörper hergestellt und somit der druckbeaufschlagbare Innenraum absolut dicht gehalten wird.This means that a leak-free connection between the inner body and the outer body is established even before the flanged edge is produced, and the interior which can be pressurized is thus kept absolutely tight.

Bevorzugt erfolgt die Verbindung durch Schweißen, Kleben, Verformen od. dgl.. Am besten hat sich hier eine Beschichtung erwiesen, welche entweder dem Außenkörper oder dem Innenkörper oder beiden in dem Verbindungsbereich vor dem Einsetzen des Innenkörpers in den Außenkörper aufgebracht wird. Diese Beschichtung, beispielsweise ein geeigneter Klebstoff, kann dann trocknen, so daß ohne Veränderung der Beschichtung der Innenkörper in den Außenkörper ein­gesetzt wird. Nach dem Einsetzen durchläuft die Zwei­kammer-Druckpackung bevorzugt einen Ofen, in welchem die Beschichtung verflüssigt wird. Hierdurch wird bereits eine gewisse Verbindung zwischen Innenkörper und Außenkörper hergestellt. Da aber in der Regel der Innenkörper einen bestimmten Abstand vom Außenkörper einhält, um in Gebrauchslage von genügendem Druckmedium umgeben zu sein, hat es sich als ratsam erwiesen, in die Öffnung der Zweikammer-Druckpackung ein Werkzeug einzuführen, über welches der Innenkörper in dem ent­sprechenden Verbindungsbereich gegen den Außenkörper gedrückt wird. Dieses Werkzeug kann geheizt sein, damit über diese Wärme die Verflüssigung der Beschichtung erfolgt bzw. in Gang gehalten wird.The connection is preferably made by welding, gluing, shaping or the like. A coating has proven to be the best here, which is applied either to the outer body or to the inner body or to both in the connection region before the inner body is inserted into the outer body. This coating, for example a suitable adhesive, can then dry so that the inner body is inserted into the outer body without changing the coating. After insertion, the two-chamber pressure pack preferably passes through an oven in which the coating is liquefied. This already creates a certain connection between the inner body and the outer body. However, since the inner body generally maintains a certain distance from the outer body in order to be surrounded by sufficient pressure medium in the position of use, it has proven to be advisable to insert a tool into the opening of the two-chamber pressure pack, via which the inner body in the corresponding connection area is pressed against the outer body. This tool can be heated so that the coating is liquefied or kept in motion by this heat.

Nach dem Herstellen der Verbindung zwischen Innenkörper und Außenkörper erfolgt dann ein Umbördeln der Mün­dungsränder, wobei dies bevorzugt durch Rollen ge­schieht.After the connection between the inner body and outer body has been established, the mouth edges are then flanged, this preferably being done by rolling.

Nunmehr ist der Innenraum absolut dicht. Sollten wider Erwarten Leckagen im Bereich der Verbindung auftreten, so kann zusätzliches Dichtungsmaterial durch die Öffnung, welche auch zur Druckbeaufschlagung des Innenraums dient, eingefüllt werden, welche dann an den Innenwänden des Außenkörpers entlangfließt und so die Beschichtung des Verbindungsbereiches ergänzt.Now the interior is absolutely tight. If, contrary to expectations, leakage occurs in the area of the connection, additional sealing material can be filled through the opening, which also serves to pressurize the interior, which then flows along the inner walls of the outer body and thus complements the coating of the connection area.

Im letzten Arbeitsgang braucht nunmehr die Zwei­kammer-Druckpackung nur noch mit dem auszubringenden Medium gefüllt und das Ventil aufgesetzt zu werden, durch welches jetzt auch der Raum des Innenkörpers abgedichtet ist, sowie über ein Bodenloch das Treibgas zugeführt zu werden.In the last step, the two-chamber pressure pack now only needs to be filled with the medium to be dispensed and the valve put on, through which the space of the inner body is now sealed, and the propellant gas has to be supplied via a bottom hole.

Dieses erfindungsgemäße Verfahren hat ferner den Vorteil, daß sowohl Außenkörper wie auch Innenkörper bereits vor dem Bördeln fertig bedruckt, lackiert od. dgl. sein können. Außerdem können im Gegensatz zu den bisher üblichen Trichtern sämtliche Standard-Innen­schutzlacke Verwendung finden. Das Bördeln kann mittels eine Automaten erfolgen, so daß erhebliche Arbeits­kräfte eingespart werden.This method according to the invention also has the advantage that both the outer body and the inner body can be printed, varnished or the like before the flanging. In addition, in contrast to the hoppers previously used, all standard interior protective lacquers can be used. The flanging can be done by means of an automatic machine, so that considerable labor is saved.

Weitere Vorteile, Merkmale und Einzelheiten der Er­findung ergeben sich aus der nachfolgenden Beschreibung bevorzugter Ausführungsbeispiele sowie anhand der Zeichnung; diese zeigt in

  • Fig. 1 einen Längsschnitt durch eine erfindungsgemäße Zwekammer-Druckpackung in einem Vorstadium der Herstellung;
  • Fig. 2 einen weiteren Längsschnitt durch die Zwei­kammer-Druckpackung nach Fig. 1 in einem weiteren Stadium der Herstellung.
Further advantages, features and details of the invention result from the following description of preferred exemplary embodiments and from the drawing; this shows in
  • 1 shows a longitudinal section through a two-chamber pressure pack according to the invention in a preliminary stage of manufacture.
  • Fig. 2 shows a further longitudinal section through the two-chamber pressure pack according to Fig. 1 in a further stage of manufacture.

Eine erfindungsgemäße Zweikammer-Druckpackung P besitzt einen hülsenförmigen Außenkörper 1, welcher im wesentlichen im vorliegenden Ausführungsbeispiel aus einem Zylindermantel 2 sowie einem Bodendeckel 3 besteht. Dieser Außenkörper 1 kann beispielsweise im Fließpreß- oder Tiefziehverfahren aus einer Alu­miniumronde hergestellt sein. Der Bodendeckel 3 besitzt eine Bohrung 4, über welche der Innenraum I unter Druck gesetzt werden kann. Nach diesem Vorgang kann die Bohrung 4 verschlossen werden.A two-chamber pressure pack P according to the invention has a sleeve-shaped outer body 1, which in the present exemplary embodiment essentially consists of a cylinder jacket 2 and a base cover 3. This outer body 1 can, for example, be produced from an aluminum blank in the extrusion or deep-drawing process. The bottom cover 3 has a bore 4 through which the interior I can be pressurized. After this process, the bore 4 can be closed.

In eine Zylinderöffnung 5 jenseits des Bodendeckels 3 des Außenkörpers 1 ist ein Innenkörper 6 eingesetzt. Dieser Innenkörper 6 besitzt ebenfalls einen Zylinder­mantel 7 sowie einen geschlossenen Bodendeckel 8. Insgesamt besteht dieser Innenkörper 6 aus einem verhältnismäßig dünnen Aluminium, so daß er unter Faltenbildung knautschbar ist.An inner body 6 is inserted into a cylinder opening 5 beyond the bottom cover 3 of the outer body 1. This inner body 6 also has a cylinder jacket 7 and a closed bottom cover 8. Overall, this inner body 6 consists of a relatively thin aluminum, so that it can be crushed with the formation of folds.

Zylindermantel 7 und Bodendeckel 8 umfangen einen Raum R, welcher in Gebrauchslage zur Aufnahme eines auszu­bringenden Mediums dient.Cylinder jacket 7 and base cover 8 enclose a space R, which in the position of use serves to receive a medium to be dispensed.

Im vorliegenden Ausführungsbeispiel hält der Innen­körper 6 von dem Zylindermantel 2 des Außenkörpers 1 über weite Strecken einen Abstand a ein. Zur Zylinder­öffnung 5 hin, d. h. im Mündungsbereich von Außenkörper 1 und Innenkörper 6 ist jedoch der Innenkörper 6 bzw. dessen Zylindermantel 7 mit dem Zylindermantel 2 im Bereich b verbunden. Die Verbindung erfolgt beispielsweise über Schweißen, Kleben, Laserschweißen, Verformen od. dgl..In the present exemplary embodiment, the inner body 6 maintains a distance a from the cylinder jacket 2 of the outer body 1 over long distances. Towards the cylinder opening 5, i. H. in the mouth area of outer body 1 and inner body 6, however, inner body 6 or its cylinder jacket 7 is connected to cylinder jacket 2 in area b. The connection is made, for example, by welding, gluing, laser welding, shaping or the like.

Die Herstellung dieses erfindungsgemäßen Vorstadiums einer Zweikammer-Druckpackung geschieht folgendermaßen:This preliminary stage of a two-chamber pressure pack according to the invention is produced as follows:

Aus einer Aluminiumronde wird der Außenkörper 1 gezogen. In den Bodendeckel 3 wird die Bohrung 4 eingebracht und der Zylindermantel 2 über den Bereich b mit einer Beschichtung 9 eines Klebstoffes belegt oder geschweißt.The outer body 1 is drawn from an aluminum blank. The hole 4 is made in the bottom cover 3 and the cylinder jacket 2 is covered or welded with a coating 9 of an adhesive over the region b.

Danach erfolgt das Einsetzen des Innenkörpers 6, wobei die Beschichtung 9 verfestigt ist, so daß sie ein Einsetzen nicht behindert.Then the inner body 6 is inserted, the coating 9 being solidified so that it does not hinder insertion.

Nun durchläuft die Zweikammer-Druckpackung P einen Ofen, in welchem die Beschichtung 9 verflüssigt wird. Hierdurch wird bereits eine Verbindung zwischen Zylin­dermantel 2 und Zylindermantel 7 eingeleitet. Die ordnungsgemäße Verbindung erzeugt jedoch ein geheiztes Werkzeug, welches durch die Zylinderöffnung 5 einge­führt wird und den Zylindermantel 7 im Bereich b gegen den Zylindermantel 2 drückt.The two-chamber pressure pack P now passes through an oven in which the coating 9 is liquefied. As a result, a connection between cylinder jacket 2 and cylinder jacket 7 is already initiated. However, the correct connection produces a heated tool which is inserted through the cylinder opening 5 and presses the cylinder jacket 7 in region b against the cylinder jacket 2.

Die nächste Bearbeitungsstufe ist in Fig. 2 gezeigt. In dieser Bearbeitungsstufe wird zum einen der Bodendeckel 3 verformt, so daß er einem Innendruck in dem Innenraum I widerstehen kann und sich nicht auswölbt.The next processing stage is shown in FIG. 2. In this processing stage, on the one hand, the bottom cover 3 is deformed so that it can withstand an internal pressure in the interior I and does not bulge.

Des weiteren werden Zylindermantel 2 und Zylindermantel 7 im Bereich der Zylinderöffnung 5 nach außen umge­bördelt, so daß ein Bördelrand 10 entsteht. Hierbei werden gleichzeitig Zylindermantel 2 und Zylindermantel 7 in einem bestimmten Bereich nach innen gezogen.Furthermore, cylinder jacket 2 and cylinder jacket 7 are flanged outwards in the region of the cylinder opening 5, so that a flanged edge 10 is created. Here, cylinder jacket 2 and cylinder jacket 7 are simultaneously pulled inwards in a specific area.

In einem weiteren Stadium der Herstellung wird nun der Raum R des Innenkörpers 6 mit dem auszubringenden Stoff gefüllt und die Zylinderöffnung 5 durch einen nicht gezeigten Deckel mit Ventil verschlossen. Dieser Deckel dichtet den Bördelrand 10 ab. Danach wird der Innenraum I des Außenkörpers 1 durch die Bohrung 4 unter Druck gesetzt, wobei anschließend die Bohrung 4 verschlossen wird. Gleichzeitig ist aber auch der Innenkörper 6 unter Druck gesetzt, so daß bei einer Betätigung des Ventils das Medium aus dem Raum R des Innenkörpers 6 durch das Ventil ausgebracht wird, während der Innenkörper 6 im gleichen Umfang dem Druck im Innenraum des Außenkörpers 1 nachgibt und zusammenknautscht.In a further stage of production, the space R of the inner body 6 is now filled with the substance to be dispensed and the cylinder opening 5 is closed by a cover with a valve, not shown. This lid seals the flange 10. The interior I of the outer body 1 is then pressurized through the bore 4, the bore 4 then being closed. At the same time, however, the inner body 6 is pressurized, so that when the valve is actuated, the medium is discharged from the space R of the inner body 6 through the valve, while the inner body 6 yields to the same extent to the pressure in the interior of the outer body 1 and crumples .

Sollte sich herausstellen, daß im Bereich der Beschich­tung 9 Leckagen bei Druckbeaufschlagung des Innenraums I des Außenkörpers 1 entstehen, so besteht die Möglich­keit, durch die Bohrung 4 weiteres Dichtungsmaterial in den Innenraum I einzubringen. Dieses fließt entlang dem Zylindermantel 2 zu der Beschichtung 9, so daß Leckagen auch nachträglich beseitigt werden können.If it turns out that there are leakages in the area of the coating 9 when the interior I of the outer body 1 is pressurized, it is possible to introduce further sealing material into the interior I through the bore 4. This flows along the cylinder jacket 2 to the coating 9, so that leaks can also be eliminated subsequently.

Claims (10)

1. Verfahren zum Herstellen einer Zweikammer-Druck­packung mit einem Außenkörper, der einen druckbeaufschlagbaren Innenraum umschließt und eine Öffnung ausbildet, durch die ein Innenkörper aus faltenbildendem bzw. knautschbarem Material eingesetzt wird,
dadurch gekennzeichnet,
daß Außenkörper und Innenkörper vor einem Bördeln od. dgl. der Öffnung, einem Befüllen des Innen­körpers und einem Anbringen eines Ventils im Mün­dungsbereich in einem vorbestimmten Bereich mitein­ander verbunden und sodann zusammen zu einem Bördel­rand umgelegt werden.1. A method for producing a two-chamber pressure pack with an outer body which encloses an interior which can be pressurized and forms an opening through which an inner body made of fold-forming or crushable material is used,
characterized,
that the outer body and inner body are connected to one another in a predetermined area before flanging or the like. The opening, filling the inner body and attaching a valve and then folded together to form a flanged edge. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Verbindung durch Schweißen, Kleben, Verformen od. dgl. erfolgt.2. The method according to claim 1, characterized in that the connection is carried out by welding, gluing, shaping or the like. 3. Verfahren nach Anspruch 1 oder 2, dadurch gekenn­zeichnet, daß der Außenkörper und/oder der Innen­körper im Verbindungsbereich vor dem Einsetzen des Innenkörpers mit einer Beschichtung versehen werden.3. The method according to claim 1 or 2, characterized in that the outer body and / or the inner body in the connection area are provided with a coating before inserting the inner body. 4. Verfahren nach Anspruch 3, dadurch gekennzeichnet, daß die Zweikammer-Druckpackung nach dem Einsetzen des Innenkörpers jedoch vor dem Bördeln einen Ofen durchläuft, in welchem die Beschichtung verflüssigt wird.4. The method according to claim 3, characterized in that the two-chamber pressure pack after the insertion of the inner body, however, passes through an oven before flanging, in which the coating is liquefied. 5. Verfahren nach Anspruch 3 oder 4, dadurch gekenn­zeichnet, daß in die Öffnung der Zweikammer-Druck­packung ein geheiztes Werkzeug eingeführt wird, welches den Innenkörper im Verbindungsbereich gegen den Außenkörper preßt.5. The method according to claim 3 or 4, characterized in that a heated tool is inserted into the opening of the two-chamber pressure pack, which presses the inner body in the connection area against the outer body. 6. Verfahren nach wenigstens einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß vor oder während der Druckbeaufschlagung des Innenraumes des Außenkörpers in diesen Dichtungsmaterial eingefüllt wird.6. The method according to at least one of claims 1 to 5, characterized in that before or during the pressurization of the interior of the outer body is filled in this sealing material. 7. Verfahren nach wenigstens einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß der Bördelbereich durch Verformen hergestellt wird.7. The method according to at least one of claims 1 to 6, characterized in that the flanging area is produced by shaping. 8. Zweikammer-Druckpackung aus einem Außenkörper, der einen druckbeaufschlagbaren Innenraum umschließt und eine Öffnung ausbildet, durch die ein Innenkörper aus faltenbildendem bzw. knautschbarem Material eingesetzt ist, dadurch gekennzeichnet, daß Innen­körper (6) und Außenkörper (1) in einem Bereich (b) miteinander abdichtend verbunden sind.8. Two-chamber pressure pack from an outer body, which encloses a pressurizable interior and forms an opening through which an inner body made of fold-forming or crushable material is used, characterized in that the inner body (6) and outer body (1) in an area (b ) are sealed together. 9. Zweikammer-Druckpackung nach Anspruch 8, dadurch gekennzeichnet, daß in dem Bereich (b) zwischen Innenkörper (6) und Außenkörper (1) eine Beschichtung (9) vorgesehen ist.9. Two-chamber pressure pack according to claim 8, characterized in that a coating (9) is provided in the area (b) between the inner body (6) and outer body (1). 10. Zweikammer-Druckpackung nach Anspruch 9, dadurch gekennzeichnet, daß die Beschichtung (9) ein Klebstoff ist.10. Two-chamber pressure pack according to claim 9, characterized in that the coating (9) is an adhesive.
EP89101075A 1988-01-27 1989-01-23 Method of making a pressure sealing between two chambers Expired - Lifetime EP0326052B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89101075T ATE83953T1 (en) 1988-01-27 1989-01-23 PROCEDURE FOR MANUFACTURING A DUAL PRESSURE CHAMBER.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3802314A DE3802314C1 (en) 1988-01-27 1988-01-27
DE3802314 1988-01-27

Publications (3)

Publication Number Publication Date
EP0326052A2 true EP0326052A2 (en) 1989-08-02
EP0326052A3 EP0326052A3 (en) 1990-09-12
EP0326052B1 EP0326052B1 (en) 1992-12-30

Family

ID=6346062

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89101075A Expired - Lifetime EP0326052B1 (en) 1988-01-27 1989-01-23 Method of making a pressure sealing between two chambers

Country Status (18)

Country Link
US (1) US5069590A (en)
EP (1) EP0326052B1 (en)
JP (1) JP2873691B2 (en)
AT (1) ATE83953T1 (en)
AU (1) AU617412B2 (en)
BR (1) BR8900323A (en)
CA (1) CA1316407C (en)
DE (2) DE3802314C1 (en)
DK (1) DK168589B1 (en)
ES (1) ES2037884T3 (en)
FI (1) FI94845C (en)
GR (1) GR3006763T3 (en)
HK (1) HK56593A (en)
LT (1) LT3830B (en)
LV (1) LV11055B (en)
NO (1) NO173646C (en)
RU (1) RU2027098C1 (en)
ZA (1) ZA89670B (en)

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EP0547982A1 (en) * 1991-12-17 1993-06-23 Cebal S.A. Method of manufacturing a spreader body with a metal pouch, spreader body and corresponding spreader
EP0743255A1 (en) * 1995-05-19 1996-11-20 Gerd Stoffel Method to produce a dual-compartment pressurized pack
EP0755877A1 (en) * 1995-07-28 1997-01-29 IPC Packaging AG Dual compartment receptacle with tapered inner receptacle
WO1999020543A1 (en) * 1997-10-17 1999-04-29 Lechner Gmbh Method for producing a two chamber pressure pack and a device for carrying out the same
RU2131389C1 (en) * 1994-04-18 1999-06-10 Герд Штоффель Method of manufacture of two-chamber container with medium under pressure
WO1999059896A1 (en) * 1998-05-20 1999-11-25 Cebal S.A. Pressurised dispenser body comprising a metal or copper-asbestos pocket, said pocket and method for obtaining same
FR2820127A1 (en) 2001-01-30 2002-08-02 Pechiney Emballage Alimentaire Container/dispenser for product in liquid to paste form has inner metal or metal/plastic pouch that is both inflatable and collapsible
EP1468759A1 (en) * 2003-04-15 2004-10-20 Nussbaum Rielasingen GmbH Method for manufacturing a double chamber pressure container
DE102007050333A1 (en) 2007-10-18 2009-04-23 Nussbaum Rielasingen Gmbh Method for producing a two-chamber pressure vessel
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

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DE3915765C2 (en) * 1988-01-27 1998-07-30 Gerd Stoffel Process for producing a two-chamber pressure pack
DE4023602A1 (en) * 1990-07-25 1992-01-30 Majer Christian Gmbh Co Kg Cardboard container with aluminium lining - has foil which can be easily detached to facilitate recycling of cardboard and foil
DE19746017C2 (en) * 1997-10-17 2000-12-21 Lechner Gmbh Method and device for producing a two-chamber pressure pack
DE19932680C2 (en) * 1999-06-10 2001-07-26 Lechner Gmbh Method and device for producing a two-chamber pressure pack
EP1059129A3 (en) * 1999-06-10 2001-09-26 LECHNER GmbH, Fabrik für Aluminium-Verpackungen Method and device for producing a two chamber pressure pack, forming tool used therein and two chamber pressure pack produced therewith
DE10017021B4 (en) * 2000-04-05 2008-10-16 Linnemann-Schnetzer Gmbh Method for producing a container for receiving a pressurized medium and pressure vessel
DE10207129B4 (en) * 2002-02-20 2004-04-01 Lechner Gmbh Method and device for manufacturing a pressure pack container
DE10222749B4 (en) * 2002-05-23 2009-04-02 Hilti Aktiengesellschaft pressure vessel
EP1422052B1 (en) * 2002-11-20 2009-05-13 Joaquin Devesa Company Procedure for construction of multi-layer cylindrical containers and containers so obtained
DE10318576B3 (en) * 2003-04-24 2004-11-25 Hilti Ag Pressure vessel and method for manufacturing and / or filling a pressure vessel
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DE10326474B4 (en) * 2003-06-12 2008-04-17 Hilti Ag pressure vessel
FR2884894B1 (en) * 2005-04-22 2007-06-29 Prospection Et D Inv S Techniq COMBUSTION GAS CARTRIDGE FOR GAS FIXING APPARATUS
JP4877504B2 (en) 2006-01-27 2012-02-15 マックス株式会社 Gas cartridge
JP5103871B2 (en) 2006-01-27 2012-12-19 マックス株式会社 Gas cartridge
JP5223186B2 (en) 2006-01-27 2013-06-26 マックス株式会社 Gas cartridge
DE102007062471A1 (en) 2007-12-20 2009-06-25 Krones Ag Apparatus and method for applying labels
RU2449206C1 (en) * 2010-09-03 2012-04-27 Открытое акционерное общество "Газпром" Double-cavity pressure vessel with varying volume of cavities
CN108290676A (en) * 2015-10-01 2018-07-17 普莱斯博制造有限公司 metered dose inhaler canister and sheath

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Cited By (14)

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Publication number Priority date Publication date Assignee Title
EP0547982A1 (en) * 1991-12-17 1993-06-23 Cebal S.A. Method of manufacturing a spreader body with a metal pouch, spreader body and corresponding spreader
RU2131389C1 (en) * 1994-04-18 1999-06-10 Герд Штоффель Method of manufacture of two-chamber container with medium under pressure
DE4413331B4 (en) * 1994-04-18 2004-07-29 Gerd Stoffel Process for producing a two-chamber pressure pack
EP0743255A1 (en) * 1995-05-19 1996-11-20 Gerd Stoffel Method to produce a dual-compartment pressurized pack
EP0755877A1 (en) * 1995-07-28 1997-01-29 IPC Packaging AG Dual compartment receptacle with tapered inner receptacle
WO1999020543A1 (en) * 1997-10-17 1999-04-29 Lechner Gmbh Method for producing a two chamber pressure pack and a device for carrying out the same
DE19746018C2 (en) * 1997-10-17 2000-12-21 Lechner Gmbh Process for producing a two-chamber pressure pack and device for carrying out the process
DE19746018A1 (en) * 1997-10-17 1999-04-29 Lechner Gmbh Two-chamber aerosol can manufacture
WO1999059896A1 (en) * 1998-05-20 1999-11-25 Cebal S.A. Pressurised dispenser body comprising a metal or copper-asbestos pocket, said pocket and method for obtaining same
FR2820127A1 (en) 2001-01-30 2002-08-02 Pechiney Emballage Alimentaire Container/dispenser for product in liquid to paste form has inner metal or metal/plastic pouch that is both inflatable and collapsible
EP1468759A1 (en) * 2003-04-15 2004-10-20 Nussbaum Rielasingen GmbH Method for manufacturing a double chamber pressure container
DE102007050333A1 (en) 2007-10-18 2009-04-23 Nussbaum Rielasingen Gmbh Method for producing a two-chamber pressure vessel
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
JP2873691B2 (en) 1999-03-24
NO173646B (en) 1993-10-04
GR3006763T3 (en) 1993-06-30
DE58903132D1 (en) 1993-02-11
US5069590A (en) 1991-12-03
LT3830B (en) 1996-04-25
RU2027098C1 (en) 1995-01-20
ATE83953T1 (en) 1993-01-15
NO173646C (en) 1994-01-12
BR8900323A (en) 1989-09-19
DE3802314C1 (en) 1989-10-26
NO890024L (en) 1989-07-28
DK31189D0 (en) 1989-01-25
AU617412B2 (en) 1991-11-28
ES2037884T3 (en) 1993-07-01
FI886033L (en) 1989-07-28
EP0326052B1 (en) 1992-12-30
FI94845C (en) 1995-11-10
LTIP1765A (en) 1995-07-25
HK56593A (en) 1993-06-18
DK168589B1 (en) 1994-05-02
FI94845B (en) 1995-07-31
EP0326052A3 (en) 1990-09-12
LV11055A (en) 1996-02-20
LV11055B (en) 1996-04-20
JPH024466A (en) 1990-01-09
DK31189A (en) 1989-07-28
AU2888389A (en) 1989-07-27
ZA89670B (en) 1989-10-25
NO890024D0 (en) 1989-01-04
CA1316407C (en) 1993-04-20

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