EP0512875A1 - Abgabevorrichtung für Schmelzklebstoffe - Google Patents

Abgabevorrichtung für Schmelzklebstoffe Download PDF

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Publication number
EP0512875A1
EP0512875A1 EP92400989A EP92400989A EP0512875A1 EP 0512875 A1 EP0512875 A1 EP 0512875A1 EP 92400989 A EP92400989 A EP 92400989A EP 92400989 A EP92400989 A EP 92400989A EP 0512875 A1 EP0512875 A1 EP 0512875A1
Authority
EP
European Patent Office
Prior art keywords
film tube
substances
film
tube
bottom plate
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.)
Withdrawn
Application number
EP92400989A
Other languages
English (en)
French (fr)
Inventor
Klaus Hubschen
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.)
Bostik GmbH
Bostik SA
Bostik Ltd
Bostik AB
Original Assignee
Bostik GmbH
Bostik SA
Bostik Ltd
Bostik AB
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 Bostik GmbH, Bostik SA, Bostik Ltd, Bostik AB filed Critical Bostik GmbH
Publication of EP0512875A1 publication Critical patent/EP0512875A1/de
Withdrawn legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05CAPPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00523Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes provided with means to heat the material

Definitions

  • the invention relates to a device for receiving and discharging plasticisable substances, in particular a hot-melt adhesive.
  • U.S. Patent No 4,953,739 discloses a moisture-proof container of solid, moisture-curable composition
  • a moisture-proof container of solid, moisture-curable composition comprising a reusable tubular body portion open at one end, a closure member provided with an outlet removably secured to said open end to close said tubular body portion, a slideable piston-head confining the composition in the body portion between the piston-head and the closure member, said piston-head having a rim projecting towards the closure member and in sliding, sealing engagement with the inner walls of said tubular body portion a bag of heat-resistant resilient foil open at one end and secured around said open end by said closure member, said bag being unattached to said tubular body portion, and solid, moisture-curable composition contained within the receptacle defined by said bag and said closure member.
  • the filling of the film tube takes place in the following steps : the film tube, sealed off at the bottom, is introduced while empty into a receptacle having a removable bottom; the free upper end of the film tube is turned over the edge of the cylindrical body of the receptacle ; the film tube is filled with the hot, molten substance ; a closure element is placed on top, which element also serves to seal off the free edge of the film tube ; the device is turned through 180° and stored for cooling; the removable bottom, which is now at the top, is removed and the content of the full tube is melted by a heating device and pressed out downwards by a ram.
  • the invention is based on the aim of avoiding these disadvantages and further developing a device for receiving and discharging plasticisable substances in such a way that, while achieving absolute imperviousness, an exchange of the film tube is possible without any difficulties.
  • a device for receiving plasticised substances, in particular a hot-melt adhesive, and for discharging these substances after their plasticising comprising a film tube receiving the substances and closed at the upper end, which tube is connected at its lower end to a rigid bottom plate with a preferably centrally arranged outlet opening for the plasticised substances, this bottom plate being intended for fitting on a heating device in the case of meltable substances, and with a cylindrical supporting enclosure supporting the film tube on the outside, characterized in that the film tube (2) provided with an aluminium layer is accomodated, in a manner sealed off at its lower end, between an essentially cylindrical part (12) of the bottom plate (3) and a likewise essentially cylindrical outer ring (8), and in that the supporting enclosure (4) is not connected to the film tube and can be opened for introducing the film tube or removed for taking out the film tube.
  • the supporting enclosure can be removed without any problem for taking out the film tube. This can take place, for example in one embodiment, by a supporting enclosure designed such that it can be swung open or, in another embodiment, by a tubular supporting enclosure which can be drawn off downwards or upwards. Furthermore, the filling of the film tube is simplified, since it dispenses with the turning over of the receptacle for cooling and precautions against deformation due to shrinkage upon cooling can be dispensed with.
  • the absolute imperviousness of the receptacle for receiving the substances makes the device designed according to the invention particularly suitable for receiving and discharging reactive and/ or perishable substances.
  • the film tube 2 encloses a substance 1 or a mixture of substances. This is preferably a hot-melt adhesive, which is pressed out downwards in the molten state and applied in the desired way to an adhesion surface.
  • the content of the film tube 2 is usually about 5 to 20 liters.
  • the film tube 2 is sealed off at the top by a closure 11.
  • the lower end of the film tube is connected, in a sealed-off manner, to a bottom plate 3.
  • the bottom plate 3 has a preferably centrally arranged outlet opening 10 and, on its rim, a downwardly directed cylindrical part 12. Between the outlet opening 10 and the cylindrical part 12 there is space for an approximately annular heating device 5.
  • the film tube 2 is surrounded by a cylindrical supporting enclosure 4, the supporting enclosure 4 serves as cylinder for a ram 6, which is actuated by a ram rod 7 in the vertical direction.
  • the adhesive softened in the lower part of the film tube 2 by the heating device 5, is pressed out downwards through the outlet opening 10 and the adjoining central opening in the heating device 5.
  • the supporting enclosure 4 also serves the purpose of avoiding a bulging of the film tube 2 and consequently a possible tearing-open of the film tube.
  • the lower rim of the supporting enclosure 4 is about level with the bottom plate 3 and is not involved in the connection of the film tube 2 with the bottom plate 3. This permits an absolutely impervious connection, which is shown in detail in Fig. 2.
  • the lower end of the film tube 2 is clamped between the cylindrical part 12 of the bottom plate 3 and a likewise cylindrical outer ring 8.
  • these parts are folded outwards at least once with the film lying in between, more preferably the cylindrical part is folded twice, thereby producing two regions 12a and 12b each folded by 180°, and the outer ring 8 is folded once, thereby forming a region 8a lying between the regions 12a and 12b.
  • the film tube may also be adhesively bonded or welded to the part 12 and the outer ring 8.
  • the supporting enclosure 4 is divided lengthwise into two cylinder halves, of which one is articulated to the other by a hinge 9.
  • the cylinder half 4a which can thus be swung open sideways, is shown in the swung-open state by dashed lines.
  • the cylinder half 4a which can be swung open is locked to the other cylinder half on the side opposite the hinge 9, as is indicated by the dot-dashed line passing through the two abutting flanges.
  • the hollow body formed by the film tube 2 and the bottom plate 3 is absolutely impervious, in order that neither can the substance escape from the receptacle nor, for example, can undesirable moisture enter the receptacle from outside, which can happen if the filled film tube remains in the applicator for a long time.
  • This objective is also served by the special design of the film for the film tube 2.
  • the film is namely a composite film with an aluminium layer, thereby achieving absolute water-vapour impermeability.
  • a polypropylene / aluminium / polystyrene film or a polyethylene / aluminium / polystyrene film is used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tubes (AREA)
EP92400989A 1991-04-10 1992-04-09 Abgabevorrichtung für Schmelzklebstoffe Withdrawn EP0512875A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9104381U DE9104381U1 (de) 1991-04-10 1991-04-10 Vorrichtung zum Aufnehmen und Abgeben von plastifizierbaren Stoffen, insbesondere eines Heißschmelzklebers
DE9104381U 1991-04-10

Publications (1)

Publication Number Publication Date
EP0512875A1 true EP0512875A1 (de) 1992-11-11

Family

ID=6866180

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92400989A Withdrawn EP0512875A1 (de) 1991-04-10 1992-04-09 Abgabevorrichtung für Schmelzklebstoffe

Country Status (2)

Country Link
EP (1) EP0512875A1 (de)
DE (1) DE9104381U1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9206256U1 (de) * 1992-05-09 1992-10-01 Schneider, Friedhelm, 5226 Reichshof Vorrichtung zum Entleeren von Beutelpackungen
DE29705488U1 (de) * 1997-03-26 1998-07-23 THERA Patent GmbH & Co. KG Gesellschaft für industrielle Schutzrechte, 82229 Seefeld Vorrichtung zum Entleeren eines Schlauchbeutels

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB536225A (en) * 1939-10-06 1941-05-07 Dunlop Rubber Co Improvements in or relating to containers for liquid fuel and the like
EP0102804A2 (de) * 1982-08-27 1984-03-14 Bostik Limited Verpackung und Abgabegerät
DE4009686A1 (de) * 1990-03-26 1991-10-02 Bayerische Motoren Werke Ag Vorrichtung zum entleeren eines mit pastoesen medien gefuellten foliensackes
EP0354650B1 (de) * 1988-08-12 1992-10-28 Bostik Limited Behälter für feste, als hot-melt verwendbare Substanzen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB536225A (en) * 1939-10-06 1941-05-07 Dunlop Rubber Co Improvements in or relating to containers for liquid fuel and the like
EP0102804A2 (de) * 1982-08-27 1984-03-14 Bostik Limited Verpackung und Abgabegerät
EP0354650B1 (de) * 1988-08-12 1992-10-28 Bostik Limited Behälter für feste, als hot-melt verwendbare Substanzen
DE4009686A1 (de) * 1990-03-26 1991-10-02 Bayerische Motoren Werke Ag Vorrichtung zum entleeren eines mit pastoesen medien gefuellten foliensackes

Also Published As

Publication number Publication date
DE9104381U1 (de) 1991-06-27

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Withdrawal date: 19921113