EP0951367A1 - Verfahren und vorrichtung zur herstellung einer zweikammerdruckpackung - Google Patents
Verfahren und vorrichtung zur herstellung einer zweikammerdruckpackungInfo
- Publication number
- EP0951367A1 EP0951367A1 EP98961021A EP98961021A EP0951367A1 EP 0951367 A1 EP0951367 A1 EP 0951367A1 EP 98961021 A EP98961021 A EP 98961021A EP 98961021 A EP98961021 A EP 98961021A EP 0951367 A1 EP0951367 A1 EP 0951367A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- inner bag
- outer container
- elastic body
- rod
- edge zone
- 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
- 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 or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
- B65D83/60—Contents and propellant separated
- B65D83/62—Contents and propellant separated by membrane, bag, 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
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/08—Tube expanders
- B21D39/20—Tube expanders with mandrels, e.g. expandable
-
- 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
Definitions
- the invention relates to a method for producing a two-chamber pressure pack provided with an opening closed by a spray valve and having an outer container and an inner bag inserted therein, which can be compressed under a pressure applied between the inner wall of the outer container and the outer wall of the inner container, before insertion of the inner bag in the outer container and applying the pressure in an adjoining the opening edge, essentially cylindrical edge zone of the outer container and / or the inner bag, gluing is applied to the surface area facing one another in the inserted state, whereupon after inserting the inner bag into the outer container, the edge zone of the Inner bag is expanded by means of a tool inserted into it and pressed against the inner surface of the edge zone of the outer container, after which the verbs are sealed together in this way via the glue layer and the edge zones of the outer container and the inner bag are flanged together, possibly with a conical narrowing towards the opening, whereupon a valve cover is sealingly placed on the flanged edge. Furthermore, the invention relates to a device for performing this method
- the invention has for its object to provide a method of the type mentioned and an apparatus for performing the method with which the edge zone of the inner bag can be expanded absolutely uniformly in a simple manner.
- the object is achieved by a method such that an elastic body which can be compressed approximately perpendicularly to the opening plane is used as the tool, the outer circumference of which when the inner bag is inserted into the outer container is less than that of the inner wall of the edge zone of the inner bag and then its outer circumference is steadily increased by increasing compression with the circumferential surface closed in a radially uniform manner, attacking the inner wall of the edge zone of the inner bag and applying evenly circumferentially widening it, pressing the outer surface of the edge zone of the inner bag against the inner surface of the outer container, whereupon the elastic body is returned to its original shape in the opposite direction of this deformation, after which the so sealingly connected entirety of the outer container and inner bag of the flaring is fed.
- the uniform expansion is achieved in that an axial compression leads to a uniform expansion in radial extent with a circular surface of the elastic body, because the axial deformation is homogeneous over the whole Body leads to a radial expansion in the radial direction, the surface being free of circular steps.
- the glue layer is applied to the outside of the edge zone of the inner bag in such a way that the inner bag is first pushed onto a holding mandrel which has the elastic body, after which the elastic body is compressed and enlarged in a first expansion phase and is enlarged to such an extent that it holds the inner bag against rotation, which for the purpose of gluing is driven to rotate around the longitudinal axis of the receiving dome perpendicular to the opening plane of the inner bag, whereupon after the glue has been applied, the outer container is pushed onto the outer surface of the edge zone of the inner bag into the inserted position is, after which in the course of a second compression phase the elastic body is further deformed and thus the expansion of the edge zone of the inner bag takes place up to the pressure on the edge zone of the outer container.
- the glueing tools on the outer surface of the edge zone of the inner bag attack the edge zone which is then set in rotation after the first phase has been carried out, so that a uniform application of glue is ensured. Since the second expansion phase also takes place with this uniformity, the glued outer surface of the edge zone of the inner bag presses itself correspondingly evenly onto the opposite inner surface of the edge zone of the outer container, so that a completely homogeneous adhesive layer is created between these surfaces, which ensures the pressure-tight connection.
- the procedure is such that the opening boundary at least of the outer container is conically widened in an upstream working process.
- the outer container and / or the inner bag are preferably heated in an upstream working process. In order to ensure a uniform expansion of the edge zone of the inner bag, the elastic body is compressed continuously.
- the device for carrying out the method is characterized by a holding mandrel onto which the two-chamber pressure pack parts - outer container and inner bag - can be pushed with their opening planes directed approximately perpendicular to the longitudinal axis of the holding mandrel and which has a rod which engages through a longitudinal recess of a cylindrical elastic body which engages its projecting mandrel end is provided with a radially projecting abutment and which is assigned an expansion rod which can be displaced along the rod from the direction facing away from the abutment to the elastic body in such a way that the elastic body is axially shortened and supported radially against the abutment expands.
- the expansion rod is preferably provided with a longitudinal bore through which the rod is guided, that is to say the rods are coaxially assigned to one another.
- the elastic body is accommodated between two support elements acting on its ends, in particular in the form of perforated disks, which introduce the compressive force over a large area, preferably over the entire respective annular surface of the cylinder faces, into the elastic body.
- the expanding rod with a tubular starting section can pass through the elastic body and optionally the support elements.
- the receiving dome also preferably has rotationally symmetrical to the axis of the rod, formed on this and / or the tubular start portion of the expanding rod support and guide elements.
- the rod can be provided with a longitudinal bore and the components projecting beyond the end of the rod can be provided with openings in the direction of the longitudinal bore in such a way that a blow-off channel is formed, when the pressurized pressure after the expansion and bonding process has ended, the two-chamber body thus obtained is removed from the mandrel by Can remove blowing pressure on the inner bottom surface of the inner bag.
- the elastic body can consist of an elastomer, elastic plastic or elastic composite material as a cylindrical block, but it can also be designed as a cylindrical hollow body, the cavity of which can be uniformly expanded with regard to its outer circumference by pneumatic, mechanical or hydraulic action.
- Figure 1 in longitudinal section an embodiment of the two-chamber pressure pack pushed onto a mandrel before the expansion process is carried out;
- Figure 2 shows a longitudinal section corresponding to Figure 1 in the position after performing the expansion process.
- FIG. 1 shows the holding mandrel, designated overall by 13, which is held so as to be rotatably drivable in a machine bed (not shown in any more detail) and onto which the inner bag 2 with its opening 3 is first pushed from the right.
- the outer container is pushed open with its opening from the same direction, as shown in the figures.
- the outer container is provided with a slight conical widening in its opening edge area (“exhibited”).
- the outer container and inner bag have previously been heated to about 160 ° C. in a continuous drying oven.
- the mandrel has a rod 9 which extends through an elastic body 5 in the form of a cylinder with a longitudinal bore 8 with a circular cross section and carries an abutment 14 at its free end 10 via a threaded connection.
- the rod 9 is inserted concentrically into a correspondingly hollow expansion rod 4, which is longitudinally displaceable in a manner not shown relative to the rod 9 by means of a drive unit, for example in such a way that the expansion rod as Piston rod of this pneumatic, mechanical or hydraulic drive unit acts.
- the widening rod has a tubular starting section which projects into the region of the dome 13 and which engages the central recess 8 of the elastic body 5 and at its free end by means of a bushing on the lateral surface of the rod 9.
- the elastic body is provided on both cylinder end faces with support elements 6 and 7 in the form of perforated disks, which practically completely cover the annular cylinder end faces.
- These perforated disks are used for introducing pressure in the course of the expansion process and can be fixed to the cylinder end faces of the elastic body 5 by gluing or vulcanization, or can even be applied.
- These perforated disks are also penetrated by the initial section of the expansion rod 4.
- a support and guide element 11 is inserted, which has a longitudinal bore which corresponds to the outer diameter of the start section and is pushed onto the end region thereof. The element 11 is fixed to the abutment 14.
- Another support and guide element 11 is placed with a longitudinal bore on a section of the abutment which projects beyond the end 10 of the rod 9 and is supported thereon. Both elements 11 have conically narrowing run-on sections which serve to push on the inner bag 2. The end of the latter element 11, which protrudes to the right, forms a stop for the inside of the bottom of the pushed-on inner bag 2.
- the bottom of the outer container 1 is designed to accommodate pressure loads caused by the propellant to be filled in later and is provided with a filling opening (not shown) for the propellant gas to be introduced between the inner wall of the outer container 1 and the outer wall of the inner bag 2.
- the expansion rod 4 is retracted to the left in the direction of the machine bed, so that the cylindrical elastic body 5 has the axial length a and the diameter d without pressure load.
- the expansion rod 4 is to the right for the purpose of expanding the edge zone of the inner bag adjoining the opening 3 postponed.
- This increase in diameter corresponds to a uniform widening of the edge zone of the inner bag, so that its outer surface is moved onto the inner surface of the opposite edge zone of the outer container 1 and pressed against it.
- a first expansion phase is carried out before the outer container is pushed open, after which this outer surface extends slightly beyond the remaining circumference of the inner bag 2.
- the inner container is attached to the dome in a non-slip manner.
- the inner bag 2 is set in rotation by turning the rods 4 and 9 and brought into contact with glueing heads in a manner not shown and thus provided with a uniform adhesive layer.
- the outer container 1 is optionally placed in the slide-on position shown in the figures, whereupon the second expansion phase is carried out, as a result of which the state shown in FIG. 2 occurs.
- the packaging parts 1 and 2 are designed as rotationally symmetrical bodies, as are the parts of the receiving dome in a corresponding adaptation.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Making Paper Articles (AREA)
- Bag Frames (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19746017 | 1997-10-17 | ||
DE19746017A DE19746017C2 (de) | 1997-10-17 | 1997-10-17 | Verfahren und Vorrichtung zur Herstellung einer Zweikammerdruckpackung |
PCT/DE1998/003058 WO1999020413A1 (de) | 1997-10-17 | 1998-10-19 | Verfahren und vorrichtung zur herstellung einer zweikammerdruckpackung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0951367A1 true EP0951367A1 (de) | 1999-10-27 |
EP0951367B1 EP0951367B1 (de) | 2002-04-03 |
Family
ID=7845905
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98961021A Expired - Lifetime EP0951367B1 (de) | 1997-10-17 | 1998-10-19 | Verfahren und vorrichtung zur herstellung einer zweikammerdruckpackung |
Country Status (6)
Country | Link |
---|---|
US (1) | US6361633B1 (de) |
EP (1) | EP0951367B1 (de) |
DE (2) | DE19746017C2 (de) |
ES (1) | ES2172251T3 (de) |
PT (1) | PT951367E (de) |
WO (1) | WO1999020413A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19932680C2 (de) * | 1999-06-10 | 2001-07-26 | Lechner Gmbh | Verfahren und Vorrichtung zur Herstellung einer Zweikammerdruckpackung |
DE10207129B4 (de) * | 2002-02-20 | 2004-04-01 | Lechner Gmbh | Verfahren und Vorrichtung zum Herstellen eines Druckpackungsbehälters |
DE10356533B4 (de) * | 2003-12-04 | 2005-10-06 | Daimlerchrysler Ag | Verfahren zum Fügen von Fügeteilen auf Hohlprofilen |
DE102004001186B4 (de) * | 2004-01-05 | 2005-12-22 | Johnson Controls Interiors Gmbh & Co. Kg | Vorrichtung und Verfahren zum Verlegen mindestens eines Kabels |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3432916A (en) * | 1966-04-18 | 1969-03-18 | Up Right Inc | Method for making a joint for hardened aluminum tubing |
GB1508509A (en) * | 1975-05-07 | 1978-04-26 | Cebal | Pressurized dispensing container of the type having an inner flexible container and method for manufacturing same |
US4152821A (en) * | 1976-03-01 | 1979-05-08 | Scott William J | Pipe joining connection process |
US4100869A (en) * | 1977-01-26 | 1978-07-18 | Gross Jerome A | Expanding crimp tool for valved dispensers and the like |
DE3304467A1 (de) * | 1983-02-09 | 1984-08-09 | Bergrohr Gmbh Siegen, 5900 Siegen | Vorrichtung zum schrittweisen expandieren von grossrohren |
US4779333A (en) * | 1987-09-24 | 1988-10-25 | Foster Wheeler Energy Corporation | Sleeve to tubesheet expander tool |
DE3802314C1 (de) * | 1988-01-27 | 1989-10-26 | Stoffel, Gerd, 7750 Konstanz, De | |
US5315811A (en) * | 1991-05-30 | 1994-05-31 | Drug Plastics & Glass Company, Inc. | Method of packaging with an outer container having a container insert for holding a predetermined volume of material |
-
1997
- 1997-10-17 DE DE19746017A patent/DE19746017C2/de not_active Expired - Fee Related
-
1998
- 1998-10-19 ES ES98961021T patent/ES2172251T3/es not_active Expired - Lifetime
- 1998-10-19 DE DE59803616T patent/DE59803616D1/de not_active Expired - Fee Related
- 1998-10-19 US US09/331,627 patent/US6361633B1/en not_active Expired - Fee Related
- 1998-10-19 PT PT98961021T patent/PT951367E/pt unknown
- 1998-10-19 WO PCT/DE1998/003058 patent/WO1999020413A1/de active IP Right Grant
- 1998-10-19 EP EP98961021A patent/EP0951367B1/de not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO9920413A1 * |
Also Published As
Publication number | Publication date |
---|---|
PT951367E (pt) | 2002-09-30 |
DE59803616D1 (de) | 2002-05-08 |
US6361633B1 (en) | 2002-03-26 |
EP0951367B1 (de) | 2002-04-03 |
WO1999020413A1 (de) | 1999-04-29 |
DE19746017C2 (de) | 2000-12-21 |
ES2172251T3 (es) | 2002-09-16 |
DE19746017A1 (de) | 1999-04-29 |
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