[go: up one dir, main page]

EP0498276B1 - Procédé et installation pour la production des panneaux en fibres minérales, ainsi que ces panneaux produits en fibres minérales - Google Patents

Procédé et installation pour la production des panneaux en fibres minérales, ainsi que ces panneaux produits en fibres minérales Download PDF

Info

Publication number
EP0498276B1
EP0498276B1 EP92101385A EP92101385A EP0498276B1 EP 0498276 B1 EP0498276 B1 EP 0498276B1 EP 92101385 A EP92101385 A EP 92101385A EP 92101385 A EP92101385 A EP 92101385A EP 0498276 B1 EP0498276 B1 EP 0498276B1
Authority
EP
European Patent Office
Prior art keywords
mineral fibers
layer
needle
mineral
mineral fiber
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.)
Expired - Lifetime
Application number
EP92101385A
Other languages
German (de)
English (en)
Other versions
EP0498276A1 (fr
Inventor
Heimo Neuhold
Josef Wieltschnig
Dieter Dr. Lerchbaumer
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.)
Heraklith Holding AG
Original Assignee
Heraklith Holding AG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25900695&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0498276(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from DE4135623A external-priority patent/DE4135623C2/de
Application filed by Heraklith Holding AG filed Critical Heraklith Holding AG
Publication of EP0498276A1 publication Critical patent/EP0498276A1/fr
Application granted granted Critical
Publication of EP0498276B1 publication Critical patent/EP0498276B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4209—Inorganic fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4209—Inorganic fibres
    • D04H1/4218—Glass fibres
    • D04H1/4226—Glass fibres characterised by the apparatus for manufacturing the glass fleece
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/74—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being orientated, e.g. in parallel (anisotropic fleeces)
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H18/00—Needling machines
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H18/00—Needling machines
    • D04H18/02—Needling machines with needles

Definitions

  • the invention relates to a method for producing mineral fiber boards, in which mineral fibers wetted with a binder are deposited on a conveyor to form a mineral fiber layer in order to feed them to a continuous furnace, in which the mineral fiber layer in the ceiling is also pre-compressed during the conveying in front of the continuous furnace and then is folded in length by mutual bulging, the mineral fibers of the mineral fiber layer are matted and then the mineral fiber layer is compressed in such a way that it has a practically flat surface after curing.
  • the invention further relates to a device which is suitable for performing the method. Finally, it refers to relevant mineral fiber boards.
  • a comparable method is also known from DE-A-38 32 773, the longitudinal compression being carried out by bulging the mineral fiber layer in several stages arranged one behind the other until it enters the continuous furnace. This prevents the bulging from being carried out relatively abruptly in the inlet area of the continuous furnace after the mineral fiber layer has been pre-compressed.
  • the method known from CH-C-620 861 can be used for a large number of different types of mineral fibers.
  • a method of the type mentioned at the beginning and a device for carrying out the method are finally known from DE-A-16 35 620.
  • the fiber layer is then felted over its entire thickness in order to fix the bulges.
  • Another object is to develop a device for carrying out the method according to the invention. This is the subject of claim 1.
  • Advantageous refinements of the method and the device are the subject of the respective dependent claims.
  • the invention provides a mineral fiber board made by the disclosed method.
  • the mineral fiber layer is deliberately matted in certain areas by maximizing the vertical component of the force in the region to be matted when a force can be exerted on the mineral fibers from the outside.
  • the mineral fibers are aligned in this area, which means that the mineral fibers are entangled with one another.
  • the matted areas prevent the longitudinally compressed structure from unfolding, so that the bending strength of known mineral fiber plates can be maintained and the tensile strength in the longitudinal direction does not suffer any losses.
  • any desired density profile in these by specifying the corresponding areas. With continuous or step-by-step or step-by-step density transitions, this enables the best possible adjustments to be made to product specifications in terms of strength can be achieved.
  • bulk densities in the order of 80 to 220 kg / m3 can be achieved, while in the non-matted areas of the mineral fiber board there is a bulk density in the range of 30 to 150 kg / m3.
  • Maximizing the vertical component of the force can be achieved, for example, by inserting at least one needle or pin into the mineral fiber layer, the relative speed between the needle or pin and the mineral fibers being minimized in the area to be matted.
  • the force transmission between the needle or pin and the mineral fibers, supported by the adhesive forces of the binder is particularly great.
  • a device for producing mineral fiber boards in particular for carrying out the method according to claim 1 or claim 2, a conveyor for conveying a mineral fiber layer and a pre-press for thickness pre-compression of the mineral fiber layer, a device for longitudinally compressing the mineral fiber layer by mutual bulging, one downstream of the device for longitudinal compression Felting device and a continuous furnace further comprises a transfer belt device, the felting device being arranged directly upstream of the transfer belt device and the continuous furnace being immediately downstream of the transfer belt device.
  • a device for the felting device which maximizes the vertical component of the force transmitted from the felting device to the mineral fibers of the mineral fiber layer.
  • the device for the vertical component can be realized, for example, by means of a needle board machine with oscillating needles, which thus immerse to different depths in the areas of the mineral fiber layer to be matted in accordance with this oscillating movement, the speed of movement of the needles essentially being a sine function with minimal speed at the reversal points follows the oscillating movement.
  • the needles are provided at least in sections with at least one beard projecting from the peripheral surface of the needle or, alternatively or in combination with it, at least one notch receding from the peripheral surface.
  • a plurality of such beards or notches will be provided, which are spaced apart from one another in the longitudinal direction of the needle.
  • These beards or the projections which are formed between adjacent notches take the fibers with them when the needle board is moved, so that the desired power transmission can take place in a particularly simple manner. This measure has an advantageous effect in combination with the "sinusoidal" movement of the needles themselves.
  • Needles of different lengths can also be provided, which in turn are provided with beards or notches. It is thus achieved that in certain areas only the longer needles arranged further apart act, in others the entirety of the now closely adjacent needles, which causes a different degree of matting.
  • the needle board machine can be designed to act only on one side of the mineral fiber layer. For most applications, however, it will be expedient if the needle board machine has two needle boards arranged opposite one another, which are each provided with a plurality of needles on the side facing the mineral fiber layer.
  • the device for the vertical component of the force can also be formed by at least one rotating metal brush, the rotational speed of which can be selected.
  • the brush pens look similar to the beards on the needles of the needle boards.
  • the device is preferably used when it is intended to act on surface areas of the mineral fiber layer, the pin length or needle length of the brushes essentially corresponding to the layer thickness of the surface area of the mineral fiber layer to be matted and the closest distance of the rollers approximately to the thickness of the mineral fiber plate to be produced .
  • the choice of device parameters can determine the extent to which matting is to take place, it being readily possible to adapt to the desired layer thickness of the end product.
  • the felting device comprises both at least one brush roller and a needle board machine.
  • the brush would have advantages in the continuous processing of the mineral fibers, but the needle intensity is too low here, so that repeated passes through the plates or a large number of brushes would be necessary for good results.
  • needle board machines are used that provide better needling, although the more complex drive means that more equipment is required.
  • the pre-press 4 consists of two rollers 26 and 27 driven in opposite directions with a diameter which is larger than that of the compression rollers used in a device 5 for longitudinal compression.
  • the mineral fiber layer 3 emerging from the pre-press 4 is fed to this device 5 for longitudinal compression, compression elements being provided, for example the aforementioned rollers or conveyor belts, which are operated in the direction of a continuous furnace 7 with decreasing peripheral speed. This results in a gradual bulging of the mineral fiber layer, which leads to a folding of the layer, the folds being formed essentially transversely to the direction of transport of the mineral fiber layer 3.
  • a felting device 8 Downstream of the device 5 for longitudinal compression is a felting device 8, which consists of two opposing rotating metal brushes 28, 29. These metal brushes 28, 29 extend as rollers over the entire width of the mineral fiber layer 3.
  • a large number of pins or needles are attached to the roller surfaces, the pin length or needle length being essentially the same as the layer thickness of the surface area of the mineral fiber layer 3 to be matted.
  • the closest distance between the outer surfaces of the rollers corresponds approximately to the thickness of the mineral fiber board to be produced.
  • the pins or needles tear fibers preferentially from the bulges of the mineral fiber layer and matt the fibers of neighboring bulges. This not only ensures that the bulges are connected to one another, but at the same time creates a pre-smoothed surface of the mineral fiber layer.
  • mineral fibers wetted with a binder are deposited on the conveyor 2. These fibers are fed to the pre-press 4, where they are aligned essentially in the conveying direction. A mineral fiber layer 3 is formed, the thickness of which is determined by the mutual spacing of the rollers 26, 27 of the pre-press 4.
  • the now pre-compressed mineral fiber layer 3 is fed to a device 5 for longitudinal compression, by means of which the mineral fiber layer 3 is folded.
  • the surface areas of the mineral fiber layer are torn open at a preselected depth, so that adjacent bulges of the mineral fiber layer are connected to one another by fibers that are largely isotropically oriented in this area.
  • the surface areas homogenized in this way namely the top and bottom of the mineral fiber layer, are smoothed on the surface by a transfer belt device 6 from two opposing conveyor belts 24, 25 and fed to the continuous furnace 7 by hardening the mineral fiber layer now prepared according to the invention into a solid plate.
  • FIG. 2 A further embodiment of the present invention is shown in FIG. 2.
  • the device shown in this figure differs from that of FIG. 1 in the configuration of the felting device, while the others Device elements with which the device shown in Fig. 1 are structurally identical and functionally the same.
  • the folded mineral fiber layer which was formed during the passage through the device for longitudinal compression, is now fed to a felting device 8, which consists of two needle boards 30, 31 lying opposite one another, which are lifted off or lowered onto the mineral fiber layer 3 with the aid of a suitable drive can.
  • These needle boards 30, 31 have, on their side facing the mineral fiber layer 3, an arrangement of needles by means of which, depending on their configuration, a density distribution determined by the respective degree of matting can also be formed inside the mineral fiber layer.
  • FIG. 3 shows a schematic representation of a first embodiment of a needle board 30 with a plurality of needles 32 directed towards the mineral fiber layer 3, of which only four are shown here.
  • the lifting movement of the needle board 30 is indicated by the representation of four positions.
  • Each needle 32 is provided with beards 33 projecting from the circumferential surface of the needle, which in the example shown here are arranged at an approximately constant distance from one another on the needle.
  • the needle board 30 is operated in such a way that the vertical needle speed essentially follows a sine function which is superimposed on an oscillating change in immersion depth.
  • the maximum stroke of the needle board 30 can be, for example, 60 mm.
  • the upper reversal point of the lifting movement is placed so that the needle board 30 is extended from the mineral fiber layer 3, while it is fully or only half immersed in the respective mineral reversal points 3, so that either the entirety of the whiskers 33 acts or only approximately the Half of the whiskers 33 in the lower area of the needles 32.
  • the sinusoidal speed curve when the needles 32 are immersed and retracted means that fibers are only carried along by the whiskers 33 in certain areas. Due to the high vertical speed in the central area, the beards 33 cannot take any fibers with them because of the overcompensated adhesive forces there. When approaching the lower reversal points, however, the needle speed is reduced to zero, so that the beards pick up 33 fibers and redirect the vertical direction.
  • an arrangement of the needles 32 with beards 33 according to FIG. 4 can be selected.
  • About half of the total number of needles 32, 34 is shortened, so that their effect on region A near the surface of the mineral fiber layer 3 is limited.
  • the other half of the needles 34 acts both in the area A and in the adjoining area B.
  • the area A is again heavily matted, the Area B matted to a lesser extent, whereby a clear gradation is achieved here.
  • a multiple gradation of the degree of matting can also be achieved here.
  • FIG. 5 shows a third exemplary embodiment of a needle board, in which the needle board 30 carries a plurality of needles 35, which are each provided with beards 33 only in their lower end section.
  • the needles 35 or beards 33 act, again in combination with the sinusoidal movement speed, only in an area B lying away from the surface, while the area A close to the surface remains practically completely unaffected. As explained above, in area A the speed of the needles 35 is too high for fibers to be taken along.
  • needle board 30 needle boards on both sides of the mineral fiber layer 3, as shown in FIG. 2, or a combination of differently designed needle boards, optionally in combination with metal brushes 28, 29, as also shown in FIG. 2, will be selected .
  • the needle boards 30, 31, as can be seen in FIG. 2 are expediently followed by two opposing rotating metal brushes 28, 29 which correspond to those as have already been described in connection with FIG. 1.
  • This felting device consisting of needle boards 30, 31 and metal brushes 28, 29 is in turn followed by a transfer belt device 6, which consists of two conveyor belts 24, 25 lying opposite one another and which smoothes the surfaces of the mineral fiber layer 3.
  • FIG. 6 a shows a section of a mineral fiber plate 3 produced by the method according to the invention, in which the surface areas 36, 37 are treated. In the middle region 38 the fold structure created by the longitudinal compression is preserved, while in the surface regions 36, 37 this orientation of the fibers is raised, so that an essentially homogeneous, isotropic fiber layer has formed there.
  • FIG. 6 (b) shows a section of a mineral fiber plate which has been produced using the needle board according to FIG. 5. Here, the central area 39 is homogenized, while the areas near the surface show their uninfluenced fold structure.
  • the stroke frequency of the needle board i.e. the frequency for the sine function to choose from the range of 5 to 25 Hz.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Nonwoven Fabrics (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Inorganic Fibers (AREA)
  • Porous Artificial Stone Or Porous Ceramic Products (AREA)
  • Paper (AREA)

Claims (13)

  1. Procédé de fabrication de panneaux en fibres minérales, dans lequel
    - les fibres minérales, enduites d'un liant, sont déposées, pour constituer une couche de fibres minérales (3), sur un dispositif de transport (2), afin de les amener à un four à passage continu (7),
    - pendant le transport, avant le four à passage continu (7), la couche de fibres minérales (3) est pré-comprimée en épaisseur puis est pliée en longueur par constitution de bombements alternés,
    - les fibres minérales de la couche de fibres minérales (3) sont feutrées, et
    - la couche de fibres minérales (3) est ensuite comprimée en épaisseur, de manière qu'après durcissement elle présente une surface pratiquement plane,
    caractérisé en ce que
    - la couche de fibres minérales (3) est feutrée à dessein par zones, une force étant appliquée à l'aide d'au moins une aiguille ou une tige sur les fibres minérales dans la zone à feutrer, en rendant maximale la composante de la force perpendiculaire au plan de la couche de fibres minérales.
  2. Procédé selon la revendication 1, caractérisé en ce que
    - la composante verticale de la force est rendue maximale, en introduisant au moins une aiguille (32, 34, 35) ou une tige dans la couche de fibres minérales (3), la vitesse relative entre l'aiguille ou la tige et les fibres minérales étant rendue minimale dans la couche à feutrer.
  3. Dispositif de fabrication de panneaux de fibres minérales avec
    - un dispositif de transport (2) destiné à transporter une couche de fibres minérales (3),
    - une pré-presse (4) destinée à pré-comprimer en épaisseur la couche de fibres minérales (3),
    - un dispositif (5) destiné à comprimer en longueur la couche de fibres minérales (3) par constitution de bombements alternés,
    - un dispositif de feutrage (8), mis en circuit en aval du dispositif (5) destiné à effectuer la compression longitudinale, et
    - un four à passage continu (7),
    caractérisé en ce que
    - il présente un dispositif à bande de guidage supérieure (6), le dispositif de feutrage (8) étant disposé directement avant le dispositif à bande de guidage supérieure (6) et le four à passage continu (7) étant disposé directement en aval du dispositif à bande de guidage supérieure (6), et
    - le dispositif de feutrage (8) comprenant un dispositif équipé d'au moins une aiguille ou d'une tige (32, 34, 35), qui rend maximale la composante de la force transmise depuis le dispositif de feutrage (8) perpendiculairement aux fibres minérales de la couche de fibres (3).
  4. Dispositif selon la revendication 3, caractérisé en ce que
    - le dispositif de feutrage (8) est une machine à planche à aiguilles (30, 31) avec des aiguilles (32, 34, 35) soumises à un mouvement oscillant, dont la vitesse cinématique suit sensiblement une fonction sinusoïdale avec une vitesse minimale au point d'inversion du mouvement oscillant.
  5. Dispositif selon la revendication 4, caractérisé en ce que
    - les aiguilles (32, 34, 35) sont pourvues au moins par sections d'au moins une barbe (33) faisant saillie de la surface périphérique des aiguilles.
  6. Dispositif selon la revendication 4 ou 5, caractérisé en ce que
    - les aiguilles sont prévues de différentes longueurs.
  7. Dispositif selon l'une des revendications 4 à 6, caractérisé en ce que
    - la machine à planche à aiguilles présente deux planches à aiguilles (30, 31) disposées en regard l'une de l'autre,
    - chaque face, tournée vers la couche de fibres minérales (3), étant pourvue d'une pluralité d'aiguilles (32, 34, 35).
  8. Dispositif selon la revendication 3, caractérisé en ce que
    - le dispositif de feutrage (8) présente au moins une brosse métallique (28, 29) tournante, dont la vitesse de rotation peut être réglée à volonté.
  9. Dispositif selon la revendication 8, caractérisé en ce que
    - il présente deux brosses métalliques (28, 29) tournantes, disposées en regard l'une de l'autre, constituée chacune d'un rouleau sur lequel est montée une pluralité de tiges ou d'aiguilles,
    - la longueur de tige ou la longueur d'aiguille correspondant sensiblement à l'épaisseur de couche de la zone de surface (36, 37) en cours de feutrage de la couche de fibres minérales (3), et
    - l'espacement minimal entre rouleaux correspondant à peu près à l'épaisseur du panneau de fibres minérales à fabriquer.
  10. Dispositif selon l'une des revendications 3 à 9, caractérisé en ce que
    - le dispositif de feutrage (8) ainsi qu'au moins un rouleau à brosse (28, 29) comprend également une machine à planche à aiguilles (30, 31).
  11. Panneau de fibres minérales fabriqué suivant le procédé selon la revendication 1 ou 2, caractérisé en ce que
    - les fibres voisines de la surface, d'au moins une surface (36, 37), sont feutrées.
  12. Panneau de fibres minérales fabriqué suivant le procédé selon la revendication 1 ou 2, caractérisé en ce que
    - le degré de feutrage augmente de façon étagée ou continue en direction d'au moins une surface (36, 37).
  13. Panneau de fibres minérales fabriqué suivant le procédé selon la revendication 1 ou 2, caractérisé en ce que
    - il est feutré dans sa zone médiane (39), tandis que les fibres voisines de la surface restent non feutrées, pour ce qui concerne au moins une surface.
EP92101385A 1991-02-01 1992-01-28 Procédé et installation pour la production des panneaux en fibres minérales, ainsi que ces panneaux produits en fibres minérales Expired - Lifetime EP0498276B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4103072 1991-02-01
DE4103072 1991-02-01
DE4135623 1991-10-29
DE4135623A DE4135623C2 (de) 1991-02-01 1991-10-29 Verfahren und Vorrichtung zum Herstellen von Mineralfaserplatten sowie danach hergestellte Mineralfaserplatten

Publications (2)

Publication Number Publication Date
EP0498276A1 EP0498276A1 (fr) 1992-08-12
EP0498276B1 true EP0498276B1 (fr) 1995-11-02

Family

ID=25900695

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92101385A Expired - Lifetime EP0498276B1 (fr) 1991-02-01 1992-01-28 Procédé et installation pour la production des panneaux en fibres minérales, ainsi que ces panneaux produits en fibres minérales

Country Status (7)

Country Link
EP (1) EP0498276B1 (fr)
JP (1) JP2571171B2 (fr)
AT (1) ATE129755T1 (fr)
CS (1) CS23492A3 (fr)
DE (1) DE9117005U1 (fr)
FI (1) FI920199A (fr)
SI (1) SI9200007A (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4220338C2 (de) * 1992-06-23 2000-09-07 Mayer Malimo Textilmaschf Verfahren und Vorrichtung zur Herstellung eines großvolumigen Vliesstoffes
DE4222207C3 (de) † 1992-07-07 2002-04-04 Rockwool Mineralwolle Verfahren zum Herstellen von Mineralfaserprodukten und Vorrichtung zur Durchführung des Verfahrens
WO1997036035A1 (fr) * 1996-03-25 1997-10-02 Rockwool International A/S Procede et appareil de fabrication de panneaux de fibres minerales
CH692114A5 (de) * 1996-09-02 2002-02-15 Flumroc Ag Vorrichtung und Verfahren zur Herstellung einer Mineralfaserplatte.
CH691816A5 (de) * 1996-03-25 2001-10-31 Flumroc Ag Verfahren und Vorrichtung zur Herstellung einer ein- oder mehrschichtigen Faserplatte.
EP0889982A1 (fr) * 1996-03-25 1999-01-13 Rockwool International A/S Procede et appareil de production de panneaux de fibres minerales
DE19906734C1 (de) * 1999-02-18 2000-07-27 Rockwool Mineralwolle Dämmstoffelement und Vorrichtung zur Herstellung eines Dämmstoffelementes
DE19919004A1 (de) * 1999-04-27 2000-11-02 Rockwool Mineralwolle Verfahren und Vorrichtung zur Herstellung von Dämmstoffen aus Mineralfasern sowie Dämmstoffelement aus Mineralfasern
FR2814474B1 (fr) * 2000-09-27 2002-11-29 Saint Gobain Isover Procede et ensemble de fabrication de feutres formes de fibres minerales
DE10146907B4 (de) * 2001-09-24 2007-02-22 Oskar Dilo Maschinenfabrik Kg Vlieszuführvorrichtung
EP1312714A1 (fr) 2001-11-14 2003-05-21 Rockwool International A/S Système pour amortir des vibrations
DE10338001C5 (de) * 2003-08-19 2013-06-27 Knauf Insulation Gmbh Verfahren zur Herstellung eines Dämmelementes und Dämmelement
DE202009001532U1 (de) * 2009-02-06 2009-04-16 Unger-Diffutherm Gmbh Dämmsystem
DE102012112670A1 (de) * 2012-12-19 2014-06-26 Saint-Gobain Isover G+H Ag Nadelfilz

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2409066A (en) * 1943-01-23 1946-10-08 Johns Manville Manufacture of felted products
US2920373A (en) * 1955-06-24 1960-01-12 Kimberly Clark Co Manufacture of wadding
US4086687A (en) * 1972-01-28 1978-05-02 The Fiberwoven Corporation Apparatus for relaxing or loosening needled textile fabrics
JPS5155466A (en) * 1974-11-07 1976-05-15 Nippon Mineral Fiber Mfg Garasutansenino komitsudoseikeiho
FR2548695B1 (fr) * 1983-07-07 1986-06-20 Saint Gobain Isover Formation de feutres a structure isotrope
JPS6128060A (ja) * 1984-07-11 1986-02-07 イビデン株式会社 セラミツクフアイバ−のブランケツト及びその製造方法
FR2617208B1 (fr) * 1987-06-26 1989-10-20 Inst Textile De France Procede et materiel d'aiguilletage de mat de verre et produit composite realise a partir dudit mat
JPS6453794U (fr) * 1987-09-25 1989-04-03
CS269300B1 (en) * 1988-06-13 1990-04-11 Krcma Radko Device for bulky fibrous layer production
DE3832773C2 (de) * 1988-09-27 1996-08-22 Heraklith Holding Ag Verfahren und Vorrichtung zur Herstellung von Mineralfaserplatten

Also Published As

Publication number Publication date
SI9200007A (en) 1992-11-27
FI920199A (fi) 1992-08-02
CS23492A3 (en) 1992-10-14
DE9117005U1 (de) 1995-02-02
JP2571171B2 (ja) 1997-01-16
ATE129755T1 (de) 1995-11-15
FI920199A0 (fi) 1992-01-16
JPH05195402A (ja) 1993-08-03
EP0498276A1 (fr) 1992-08-12

Similar Documents

Publication Publication Date Title
EP0498276B1 (fr) Procédé et installation pour la production des panneaux en fibres minérales, ainsi que ces panneaux produits en fibres minérales
DE69205828T2 (de) Verfahren und Vorrichtung zum Herstellen einer Verbundbahn, sowie damit hergestellte Verbundbahn.
DE69425051T2 (de) Verfahren zur herstellung einer isolierenden mineralfaserbahn
DE2639466C3 (de) Verfahren und Vorrichtung zur Herstellung eines nichtgewebten Textilmaterials
EP0146752A1 (fr) Procédé et dispositif pour extruder les particules végétales, en particulier les particules en bois, mêlées avec l'adhésif
DE68928301T2 (de) Verstärkter und gewellter verbundkörper
DE3107589C2 (de) Vorrichtung zur kontinuierlichen Herstellung von Span-, Faser- oder dergleichen Platten
DE3832773C2 (de) Verfahren und Vorrichtung zur Herstellung von Mineralfaserplatten
DE69421267T2 (de) Verfahren zum herstellen eines mineralfaserisolationsgewebes und anlage zum herstellen eines mineralfasergewebes
WO1994001608A1 (fr) Procede et dispositif de fabrication de produits en fibres minerales
DE1760440A1 (de) Nadel fuer Verfilzungszwecke
DE4135623C2 (de) Verfahren und Vorrichtung zum Herstellen von Mineralfaserplatten sowie danach hergestellte Mineralfaserplatten
EP1806444B1 (fr) Aiguille à feutrer
DE7723785U1 (de) Vorrichtung zum ausrichten von mit einem bindemittel versehenen, lignozellulosehaltigen teilchen
EP0436681B1 (fr) Procede et realisation d'une zone compressible dans une region peripherique au moins d'une plaque ou d'une bande d'isolation thermique, acoustique et/ou ignifuge en fibres minerales, et plaques de fibres minerales fabriquees par ce procede
EP0536584B1 (fr) Procédé de préparation d'un matériau composite comprenant au moins deux couches
DE69901966T2 (de) Verfahren zur Herstellung eines Binder enthaltenden Mineralwolleproduktes, Vorrichtung zur Durchführung des Verfahrens
DE2854967B2 (de) Asbestfreie, auf Zementbasis nach dem Aufwickelverfahren hergestellte Bauplatten-Rohplatte und ein Verfahren zu deren Herstellung
DE10259336A1 (de) Geformte Dämmplatte aus Mineralwolle
EP0654100B1 (fr) Procede pour la fabrication de panneaux de laine minerale et dispositif pour l'application de ce procede
DE102021002998A1 (de) Vorrichtung und Verfahren zur Dämmplattenherstellung
EP2527116A1 (fr) Presse continue
DE4230356C1 (de) Verfahren und Vorrichtung zum Herstellen einer Dämmplatte aus faserigen Materialien mit niedriger Rohdichte, sowie damit hergestellte Dämmplatte
DE2840645C2 (de) Verfahren zum Herstellen von Isolierteilchen
DE3821172A1 (de) Mehrschicht-kunststoffverbundplatte und verfahren zu ihrer herstellung

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK FR GB GR IT LI LU NL SE

17P Request for examination filed

Effective date: 19930201

17Q First examination report despatched

Effective date: 19940321

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: HERAKLITH BAUSTOFFE AG

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: HERAKLITH HOLDING AKTIENGESELLSCHAFT

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK FR GB GR IT LI LU NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT

Effective date: 19951102

Ref country code: DK

Effective date: 19951102

Ref country code: BE

Effective date: 19951102

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19951102

Ref country code: GB

Effective date: 19951102

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19951102

Ref country code: FR

Effective date: 19951102

REF Corresponds to:

Ref document number: 129755

Country of ref document: AT

Date of ref document: 19951115

Kind code of ref document: T

REF Corresponds to:

Ref document number: 59204158

Country of ref document: DE

Date of ref document: 19951207

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19960131

Ref country code: LI

Effective date: 19960131

Ref country code: CH

Effective date: 19960131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19960202

EN Fr: translation not filed
NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 19951102

PLBQ Unpublished change to opponent data

Free format text: ORIGINAL CODE: EPIDOS OPPO

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

26 Opposition filed

Opponent name: ROCKWOOL INTERNATIONAL A/S

Effective date: 19960802

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19961101

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

PLBO Opposition rejected

Free format text: ORIGINAL CODE: EPIDOS REJO

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19990121

Year of fee payment: 8

PLBN Opposition rejected

Free format text: ORIGINAL CODE: 0009273

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: OPPOSITION REJECTED

27O Opposition rejected

Effective date: 19981109

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000128