EP2461958A1 - Installation à double bande et procédé pour son utilisation - Google Patents

Installation à double bande et procédé pour son utilisation

Info

Publication number
EP2461958A1
EP2461958A1 EP10729900A EP10729900A EP2461958A1 EP 2461958 A1 EP2461958 A1 EP 2461958A1 EP 10729900 A EP10729900 A EP 10729900A EP 10729900 A EP10729900 A EP 10729900A EP 2461958 A1 EP2461958 A1 EP 2461958A1
Authority
EP
European Patent Office
Prior art keywords
profile
lateral
double
plate
boundary
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Withdrawn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
EP10729900A
Other languages
German (de)
English (en)
Inventor
Norbert Wechsler
Michael Loferer
Jens Kompe
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.)
KraussMaffei Technologies GmbH
Original Assignee
KraussMaffei Technologies 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 KraussMaffei Technologies GmbH filed Critical KraussMaffei Technologies GmbH
Publication of EP2461958A1 publication Critical patent/EP2461958A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/20Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
    • B29C44/32Incorporating or moulding on preformed parts, e.g. linings, inserts or reinforcements
    • B29C44/326Joining the preformed parts, e.g. to make flat or profiled sandwich laminates
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/04Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities
    • B29C44/06Making multilayered articles
    • B29C44/065Making multilayered articles comprising at least one barrier layer

Definitions

  • the present invention relates to a double belt plant for producing a prefabricated structural element and a method for its operation.
  • Fig. 1 the structure of such an in-house known design finished element can be seen.
  • a plate 12 two previously prepared, foamed plastic core elements 16 are arranged, which serve for spacing and holding the other plate 14.
  • U-shaped profiles 18 are each arranged with inside pointing to the plate legs, which complete the construction finished elements laterally.
  • the two plates 12 and 14 overhang on different sides in such a way that adjoining adjacent to the abutting edges adjacent construction finishing elements partially overlapping directly to each other, as can be seen in Fig. 3.
  • an insert element is inserted after assembly of the plate itself, which has a groove-like recess 24 in which a number of supply lines 26 are arranged or can be.
  • FIGS. 1 and 3 The production of such finished components shown in FIGS. 1 and 3 is usually discontinuous, so that first a plate 12 is prepared on which then the core elements 16 and the U-profile elements 18 are arranged and covered with the plate 14. Then the U-profiles 18 are inserted and secured (e.g., bolted). In a subsequent processing step, the insert element 22 is inserted. Possibly. the latter happens on site on a construction site.
  • both the plates 12 and 14 are screwed by means of screws 28 with the U-shaped profiles.
  • the U-shaped profiles 18 are also bolted together.
  • This production method has several disadvantages. On the one hand, it does not allow a continuous process, for example by means of a double belt press, which is usually more efficient than a batch process. On the other hand, because of the manufacturing process, free spaces 20, where the prefabricated structural element has poor sound and heat insulation, can usually not be avoided.
  • DE 2 423 792 describes a method for producing structural panels of composite material.
  • a continuous tape is made by joining plates together. On this band are used at standstill same intermediate pieces, between which discontinuously applied foam body and glued. After passing through further process steps in which, inter alia, lateral boundaries are attached, a parallel outside is then applied to this intermediate product. introduced. Finally, in a partially moving press, a pressing step takes place before the continuous strip thus produced is cut to length.
  • Object of the present invention is to provide an apparatus and a method for producing a finished structural element and such a finished construction element itself, which or which avoids the disadvantages mentioned above and enables continuous production.
  • a core idea of the present invention can be seen in the fact that a prefabricated structural element can be produced efficiently and inexpensively in a continuous double-belt method and has sound and heat optimized insulation.
  • At least one lateral boundary profile is applied continuously on a first plate, which serves as shuttering for the intumescent plastic material to be subsequently introduced.
  • a lateral boundary profile is also arranged for the second lateral boundary, or alternatively the lateral boundary on one side is realized by a sealing chain of a double-belt device.
  • one or more intermediate profiles are applied between the two side areas on the plate.
  • a suitable insertion device Eg mixing head
  • This plastic material foams after entering the double band with an upper and a lower band on such that the space between serving as a limit respective profiles or such a profile and the lateral Abdichtkette, the plate and a band of the double band (usually the upper band) is completed completely.
  • a defined free space is created, in which then (later) an insert element with channel recess or corresponding supply lines can be introduced.
  • the plate can be produced in a continuous manner efficiently and inexpensively using the double-belt method known per se. It must only be fed to a plate of the finished construction element and the corresponding boundary profiles or limiting devices and arranged accordingly, through which then a spatially limited AufMumrea within the double band is possible.
  • the further (for example upper) plate are applied, so that then there is a complete finished prefabricated structural element, which is additionally connected by the foamed plastic.
  • two lateral boundary profiles can be provided, which form the lateral boundary of the construction prefabricated element.
  • a lateral limiting profile only on a first side and, on the other side, to realize the limitation in the double band via a lateral sealing chain which runs along with the double band. This embodiment is particularly favorable when - as will be shown later - the one used lateral boundary of the finished structural element projects into a recess of an adjacent plate, whereby a good connection of both plates is made possible.
  • an intermediate profile in which a free space is formed directly may be, for example, a U-shaped intermediate profile.
  • two or more intermediate profiles may be provided, of which at least two form the boundary for the free space. In this space no foaming plastic material is filled; it remains free for the later insertion of the insert element.
  • a vapor barrier for this purpose, between the first plate and the foamed plastic material or the second plate and the foamed plastic material, a preferably over the entire width of the element extending film web may be provided.
  • This can be supplied in terms of production technology before the double-belt device as a web with a feed device. In this case, it is glued to the foaming plastic material.
  • the application is also possible after the double belt device, but before the application of the second plate.
  • the profiles ie the lateral boundary profiles or the intermediate profiles made of an insulating material or they may be additionally coated with an insulating layer, at least at their areas, with the first and / or second plates come in contact.
  • FIG. 1 is a schematic sectional view through a
  • Fig. 2 shows an insert element with channel recess in section according to the
  • Fig. 3 is a schematic sectional view of several intermittently joined together construction elements gem. Fig. 1,
  • Fig. 5 is a schematic sectional view of a second embodiment of a finished construction element according to the invention.
  • Fig. 6 is a schematic cross-sectional view of a third embodiment of a finished construction element.
  • FIGS. 4 to 6 show, in a schematic sectional view, the constructions of three alternative embodiments for prefabricated structural elements according to the present invention.
  • a prefabricated construction element is shown with a first plate 112 at the bottom, two forming the lateral boundary, U-shaped boundary profiles 118, two an inner boundary for the foamed area forming U-shaped intermediate profiles 119, foam-filled areas 116 and 117 of the The prefabricated structural element and a top cover plate 114 (in the figures).
  • the lower plate 112 protrudes slightly beyond the left-hand limiting profile (in the figure), but does not extend at its right edge to the outer boundary of the right-hand limiting profile. Point-symmetrical this statement also applies to the upper plate 114.
  • an insert element with a channel recess is inserted into the free space 120, analogously to the embodiments in FIGS. 1 to 3 (cf. also FIG. 2), which likewise may consist of a foamed plastic.
  • the supply lines are added or can be inserted there. It is possible to do this insertion on the spot, e.g. at the construction site; Alternatively, a full plastic core can be inserted, which ensures a complete filling of the free space 120, namely in the event that no supply lines are to be introduced in one element.
  • the procedure for producing the prefabricated structural element from FIG. 4 is very simple.
  • the plate 112 is placed on a table or a feeding device for the double band before the entry of a known double-belt device.
  • the plate 112 is suitably fed with the respective profiles 118 and 119 and connected to the plate, e.g. bonded.
  • a polyurethane material is introduced into the region of the later foam-filled sections 116 and 117 and regions and foams up shortly before the entry into the known double strip with an upper belt and a lower belt.
  • the reaction time is selected such that before the entry into the double belt, no complete foaming occurs.
  • the full foaming happens after entering the double band, in the present case, the upper band forms the upper limit of the foam.
  • the polyurethane foam has hardened so far that the second plate can be placed on the foam, which is connected via the polyurethane foam to the lower plate, preferably glued.
  • the second plate 114 could be fed even before entering the double belt and, as it were, resting on the applied profiles. In this case, however, it must be ensured that the foaming process by introducing the polyurethane material into the corresponding spaces is not too fast and the foam actually unfolds completely only in the double belt, since otherwise it would push the plate upwards.
  • Fig. 5 an alternative embodiment of both a manufacturing method as well as the finished structural element itself is provided.
  • the prefabricated structural element differs from that of FIG. 4 in that on the right side in FIG. 5 the boundary profile is missing and on the left side preferably a profile in I-shape or in double C-shape is supplied. Since there is no switching function by a profile on the right side due to the absence of the limiting profile, this side is ensured by a lateral sealing chain or bead of the double-belt device. This bead 140 travels with the double belt and ensures that the material necessary to form the core portion 116 in this region does not foam further than necessary.
  • the left part of the I-shaped side profile 118 is now inserted into the free space between the two plates 112 and 114 after removal of the soabdichtkette, so that he readily there with the Plates of adjacent construction finished element can be screwed.
  • the foam in this edge region is preferably shaped in such a way that the engaging profile of the adjoining prefabricated construction element adjoins the foamed material in a form-fitting manner.
  • the embodiment in Fig. 6 differs from that in Fig.
  • a single intermediate profile 119 is provided, which is formed substantially U-shaped with two support legs.
  • U-shaped space of the free space 120 is formed at the same time.
  • an accurate determination of the free space is now achieved by the base leg of the U-shaped profile.
  • only one profile instead of two profiles in contrast to FIG. 5 of the plate in the double belt system must be supplied.

Landscapes

  • Laminated Bodies (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

La présente invention concerne une installation à double bande pour la fabrication d'un élément préfabriqué de construction, un procédé pour le fonctionnement d'une telle installation à double bande et l'élément préfabriqué de construction même. L'installation à double bande comporte un dispositif d'arrivée pour l'arrivée discontinue ou continue d'une première plaque (12, 112), de divers dispositifs d'alimentation pour l'arrivée d'un premier profil de délimitation latéral (18, 118) et d'au moins un profil intermédiaire (119, 119), qui est espacé des deux bords latéraux, un dispositif d'introduction pour l'introduction d'un matériau synthétique moussant entre le premier profil de délimitation latéral et un premier profil intermédiaire d'une part et entre une délimitation de bordure latérale, opposée au premier profil de délimitation latéral, et le premier ou un autre profil intermédiaire d'autre part et un dispositif à double bande avec une bande supérieure et une bande inférieure.
EP10729900A 2009-08-07 2010-07-08 Installation à double bande et procédé pour son utilisation Withdrawn EP2461958A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200910036582 DE102009036582A1 (de) 2009-08-07 2009-08-07 Doppelbandanlage, Verfahren zu deren Betrieb und Konstruktionsfertigelement
PCT/EP2010/059815 WO2011015419A1 (fr) 2009-08-07 2010-07-08 Installation à double bande et procédé pour son utilisation

Publications (1)

Publication Number Publication Date
EP2461958A1 true EP2461958A1 (fr) 2012-06-13

Family

ID=42797085

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10729900A Withdrawn EP2461958A1 (fr) 2009-08-07 2010-07-08 Installation à double bande et procédé pour son utilisation

Country Status (3)

Country Link
EP (1) EP2461958A1 (fr)
DE (1) DE102009036582A1 (fr)
WO (1) WO2011015419A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010004790B4 (de) 2010-01-16 2015-03-12 Kraussmaffei Technologies Gmbh Produktionsanlage zur Herstellung eines Konstruktionsfertigelementes
DE202010014620U1 (de) 2010-10-22 2011-02-10 Kraussmaffei Technologies Gmbh Sandwichpaneel

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2246185A1 (de) * 1972-09-20 1974-04-18 Rudolf Dr Ing Ernst Vorrichtung zur kontinuierlichen herstellung eines kaschierten schaumstoffstranges, insbesondere aus polyurethan
FR2229545B1 (fr) * 1973-05-18 1976-04-23 Saint Gobain
US4606715A (en) * 1982-12-17 1986-08-19 Larson Roger E Apparatus for making building panels in a continuous operation
DE60233198D1 (de) * 2002-03-22 2009-09-17 Metecno Ind S P A Verstärktes Paneel für Sektionaltore, Verfahren und Vorrichtung zur Herstellung
WO2003089220A2 (fr) * 2002-04-19 2003-10-30 Rosskopf Und Partner Ag Plaque composite

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2011015419A1 *

Also Published As

Publication number Publication date
DE102009036582A1 (de) 2011-02-17
WO2011015419A1 (fr) 2011-02-10

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