EP1285111B1 - Method for forming and packaging insulation felts and device therefor - Google Patents

Method for forming and packaging insulation felts and device therefor Download PDF

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Publication number
EP1285111B1
EP1285111B1 EP01936549A EP01936549A EP1285111B1 EP 1285111 B1 EP1285111 B1 EP 1285111B1 EP 01936549 A EP01936549 A EP 01936549A EP 01936549 A EP01936549 A EP 01936549A EP 1285111 B1 EP1285111 B1 EP 1285111B1
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EP
European Patent Office
Prior art keywords
stack
strips
longitudinal
compression
conveyor
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
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EP01936549A
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German (de)
French (fr)
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EP1285111A1 (en
Inventor
Jean-Yves Aube
Bernard Bichot
Bernard Louis
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Saint Gobain Isover SA France
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Saint Gobain Isover SA France
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Publication of EP1285111A1 publication Critical patent/EP1285111A1/en
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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/30—Registering, tensioning, smoothing or guiding webs longitudinally by longitudinally-extending flexible tapes or bands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H39/00—Associating, collating, or gathering articles or webs
    • B65H39/16—Associating two or more webs
    • 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
    • D04H13/00—Other non-woven fabrics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/177—Fibrous or compressible material

Definitions

  • the present invention relates to the formation and conditioning of felts of fibrous insulating products, in particular based on mineral fibers.
  • a fiber mattress of mineral fiber is produced as a result of various steps at the exit of a forming device in which the mattress has been compressed and heated to cause the polymerization of a binder encapsulating the fibers.
  • the mattress thus obtained continuously is conveyed on a conveyor device and generally has a large width of up to several meters, for example 3.6 m. For its use, it is necessary to cut defined lengths and widths less than the width of manufacture to obtain felts whose dimensions are for example 31 cm wide and 1.2 m long.
  • the mattress at the output of the forming device is cut longitudinally and along its median line to generate two mattresses of equal width which are driven by bifurcating by means of two distinct conveyor belts. Subsequently, these mattresses will be called half-width mattresses.
  • a half-width fiber mat is in turn cut longitudinally into several strips, for example four, of equal width and corresponding to the desired width of the felt to be provided. These four strips are driven parallel to each other and undergo a transverse cutting operation to form the desired length felt by trimmers located vertically of each strip scroll.
  • each of the four strips consisting of the formed felts is diverted and conveyed by a conveyor to a compression and packaging machine.
  • This machine comprises a receiving device placed directly below the end of the conveyor to receive the insulating felts.
  • the The stack is transferred to a conditioning chamber for compression in the stacking direction, a film surrounding the stack. The film is then glued or welded on itself so as to surround the stack and the compression can then be relaxed.
  • the invention therefore proposes to manufacture and package insulating felts without requiring large means of transport, cutting and compression and packaging, thereby requiring a reduced workforce.
  • the parallel fiber strips on the conveyor device are deviated from their scrolling plane in directions rising and / or falling angular converging towards an axis perpendicular to the original scroll plane and at which said vertically spaced strips arrive coplanar.
  • the coplanar fiber strips are deposited by gravity on the receiving conveyor so as to superimpose them in an aligned manner in order to carry out the longitudinal stacking.
  • the stack Before transverse cutting of the compressed stack to obtain the felts, the stack is wrapped around its longitudinal and lateral faces.
  • the compression means drive with them during compression of the stack at least one packaging film for covering said longitudinal and lateral faces of the stack.
  • two packaging films are used to be applied against the longitudinal faces, then folded after compression of the stack against the side faces and interconnected by means of securing.
  • the fiber mattress at the outlet of its forming device When the fiber mattress at the outlet of its forming device is cut into two mattresses of identical width, it is provided that the fiber strips coming from the two mattresses bifurcate along two bifurcation and convergence devices to deliver on two respective receiving conveyors.
  • the two receiving conveyors being positioned to converge at their downstream end to a third receiving conveyor to ensure the superposition of the two stacks of strips according to a third final stack to be processed by the compression means.
  • the device for carrying out the method is characterized in that the bifurcation and convergence device comprises individual conveyor belts for each of the fiber strips, said conveyor belts having their starting point at the junction of the device. conveyor and in alignment with the fiber webs, and their arrival point aligned along a vertical axis and above the receiving conveyor.
  • guide flanges are provided on each side and at the upstream end of the receiving conveyor to ensure alignment of the stack.
  • the compression means consist of two convergent mats whose pressing surfaces are provided with packaging films for deposition on the longitudinal sides of the simultaneous compression stack.
  • cutting means are arranged downstream of the compression device for transverse cutting of the compressed and packaged stack.
  • mineral wool strips 10 which are well-known, by means of circular saws, not illustrated, of longitudinal cut-outs of two half-width mineral wool mattresses are visible.
  • the half-width mattresses are from a mattress split in two longitudinally when the final dimensions of the desired felts impose it; this is indeed the case for a mattress having at the output of its forming device a width of 3.6 m, the final felt to have a width of 0.31 m.
  • Each half-width mattress is cut into four mineral strips 10 which are supported and driven in parallel by a conveying device 2 moving horizontally in the direction of the arrow 3.
  • a horizontal cut to split in two the thickness of the mattress it is sometimes carried out in known manner, at the output of the forming device and downstream of the cut of the half-width mattress, a horizontal cut to split in two the thickness of the mattress . It is also possible to provide, simultaneously or just upstream of the blank, to cover the top and bottom faces 10a and 10b of the mat of a functional coating 10c, as illustrated in FIG. figure 1 at.
  • a bifurcation and convergence device 4 visible on the Figures 1 to 4 , is provided in interruption of the carrier device 2 for separately conveying the four mineral strips 10 in upward and downward angular directions with respect to the horizontal direction 3, and converging towards an axis A perpendicular to the horizontal plane of the conveying device 2.
  • the purpose of the bifurcation and convergence device 4 is to route the mineral strips 10, initially parallel to one another, to position them above each other in the same vertical plane.
  • the bifurcation device 4 consists of four conveyor belts 40 which originate at the junction of the device 2 along the axis of each moving mineral strip 10 and which end at their ends 41 vertically to a receiving conveyor 5.
  • the conveyor belts 40 are inclined angularly in a vertical plane perpendicular to the horizontal direction 3 so as to control the separation height between each conveyor belt in order to provide a sufficient space corresponding at least to the thickness of a mineral strip, the thickness of the strips being a function of the thickness of the mattress at the output of the forming device.
  • the conveyor belts 40 are also inclined angularly in a horizontal plane parallel to the horizontal direction 3 in order to adjust the position of the terminations 41 along the same vertical axis A at the level of the receiving conveyor 5.
  • the length of the conveyor belts 40 is adapted as a function of the running speed of the mineral strips 10, so that the four mineral strips 10 arrive perfectly coplanar at the terminations 41.
  • the receiving conveyor 5 accommodates the four mineral strips 10, which are superimposed one above the other to form a longitudinal stack and aligned 11 strips.
  • the superposition of the mineral strips 10 is carried out according to gravity sliding from the terminations 41 on the receiving conveyor 5. Consequently, the receiving conveyor is always located below the most angularly descending conveyor belt 40.
  • the convergent conveyor belts 40 are rising and falling relative to the plane of the conveyor device 2; alternatively, they could as well be all rising or falling as illustrated in FIG. figure 3 , the receiving conveyor 5 being positioned at the lowest point of the assembly.
  • flanges 50 visible on the Figures 2 to 4 are provided on the sides and at the upstream end of the receiving conveyor 5 to linearly guide, upon receipt, the mineral strips on the conveyor.
  • a compression and packaging device 6 visible to the figure 5 , is installed after the receiving conveyor 5 in order to compress the stack 11 of the four mineral strips and to surround it with a packaging film 7 for maintaining in compression and the subsequent conditioning of the felts to be obtained.
  • the compression and packaging device 6 comprises two conveyor belts 60 inclined and convergent downstream of said device.
  • each carpet 60 At the entrance of each carpet 60 is a supply system, not shown, in packaging film delivering two films 7.
  • the two films 7 have a width adapted to the overlap of the longitudinal surfaces 12 of the stack 11 and compressed than covering said films on the side faces 13 of the stack.
  • the films 7 are guided by non-illustrated rolls so as to come into contact respectively with each of the pressing surfaces of the belts 60 facing each other and intended to be pressed against the longitudinal faces 12 of the stack 11.
  • the threads are preferably driven by the movement of the belts 60, which ensures that the films are stretched longitudinally against the longitudinal faces 12 of the stack 11.
  • the belts 60 At the end of the compression zone, the belts 60 have their pressing surfaces parallel and spaced apart by a quantity that corresponds to the desired final height of compression of the stack 11, that is to say the felts to be produced.
  • shapers 61 whose role is to set up the edges of the films 7 against the side faces 13 of the stack, as well as securing means 62, including hot air nozzles which perform an autogenous welding of suitable plastic films, or by providing an external glue type hot melt for example or a double-sided adhesive.
  • cutter means 8 At the outlet of the compression and packaging device 6 are cutter means 8 of the cutter type whose role is to cut transversely the stack 11 of the mineral strips to make the felt to the desired length.
  • the final packaging felt is achieved by means of a traditional machine that stacks a determined number of felts and envelopes.
  • the half-width mattress of mineral fibers is delivered on the conveyor device 2; while progressing in the direction 3 it is cut longitudinally by to be converted into several parallel mineral strips 10 between them.
  • the conveyor belts 40 of the bifurcation and convergence device 4 angularly deflect upwardly and downwardly each of the fiber strips 10 so that the latter arrive at the terminations 41 of the conveyor belts in a vertical alignment.
  • the mineral strips 10 then leave the terminations 41 and are deposited by gravity on the receiving conveyor 5 in order to constitute the longitudinal stack 11.
  • the stack 11 then enters the compression device 6, the longitudinal faces 12 of the stack coming into contact with the films 7 stretched against the pressing surfaces of the belts 60.
  • the stack 11 is compressed, which generates the lateral overflow of the packaging films 7 against the lateral faces 13 of the stack.
  • the shapers 61 correctly fold the films which are then secured by the welding nozzles 62.
  • the compressed and packaged stack 11 At the outlet of the compression and packaging device 6 is cut transversely by means of the paper cutter 8 the compressed and packaged stack 11, the cutter being periodically operational as a function of the linear speed of displacement of the stack to obtain the length of the stack. adequate pens.
  • the invention therefore makes it possible, thanks to the bifurcation and convergence device, and means for guiding and depositing the strips to form the stack 11, to gather several strips in the form of a single treatment line and to operate the compression and packaging and cutting at once while the state of the art imposes a line of mineral strip treatment extracted from the original fiber mat.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Nonwoven Fabrics (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Insulated Conductors (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
  • Processes Specially Adapted For Manufacturing Cables (AREA)

Abstract

A method for forming and conditioning insulating felts of fibrous products whereby an insulating blanket is transported continuously on a transporting device, the insulating blanket is cut into a plurality of fiber strips, the fiber strips are driven by at least one branching-off and convergence device towards at least one reception conveyor, the fiber strips are superposed one on top of another so as to form at least one longitudinal stack, the at least one longitudinal stack is compressed by a compression device, and the compressed stack is cross cut to form the insulating felts. Such a method is implemented on a device including a transporting device, a longitudinal cutting device, at least one branching-off and convergence device, at least one reception conveyor, a compression device, and a cross-cutting device. The at least one branching-off and convergence device includes individual conveyor belts with each individual conveyor belt having a departure point at a junction of the transporting device and an arrival point aligned along a vertical axis and above the at least one reception conveyor. The fiber strips are superposed one above another on the at least one reception conveyor prior to being packaged and compressed by the compression device and cross-cut by the cross-cutting device.

Description

La présente invention concerne la formation et le conditionnement de feutres de produits isolants fibreux, en particulier à base de fibres minérales.The present invention relates to the formation and conditioning of felts of fibrous insulating products, in particular based on mineral fibers.

Un matelas de produits fibreux à base de fibres minérales est produit à la suite de différentes étapes à la sortie d'un dispositif de formage dans lequel le matelas a été comprimé et chauffé pour provoquer la polymérisation d'un liant enrobant les fibres. Le matelas ainsi obtenu de manière continue est véhiculé sur un dispositif transporteur et présente généralement une largeur importante pouvant atteindre plusieurs mètres, par exemple 3,6 m. En vue de son utilisation, il est nécessaire de découper des longueurs définies et des largeurs moins importantes que la largeur de fabrication pour obtenir des feutres dont les dimensions sont par exemple de 31 cm de largeur et de 1,2 m de longueur.A fiber mattress of mineral fiber is produced as a result of various steps at the exit of a forming device in which the mattress has been compressed and heated to cause the polymerization of a binder encapsulating the fibers. The mattress thus obtained continuously is conveyed on a conveyor device and generally has a large width of up to several meters, for example 3.6 m. For its use, it is necessary to cut defined lengths and widths less than the width of manufacture to obtain felts whose dimensions are for example 31 cm wide and 1.2 m long.

Aussi, de manière connue, le matelas en sortie du dispositif de formage est découpé longitudinalement et selon sa ligne médiane pour engendrer deux matelas de largeur égale qui sont entraînés en bifurquant au moyen de deux tapis transporteurs distincts. Par la suite, ces matelas seront nommés matelas de demi-largeur.Also, in a known manner, the mattress at the output of the forming device is cut longitudinally and along its median line to generate two mattresses of equal width which are driven by bifurcating by means of two distinct conveyor belts. Subsequently, these mattresses will be called half-width mattresses.

Un matelas de fibres de demi-largeur est à son tour scié longitudinalement en plusieurs bandes, par exemple quatre, de largeur égale et correspondant à la largeur désirée du feutre à fournir. Ces quatre bandes restent entraînées de manière parallèle les unes aux autres et subissent une opération de découpe transversale pour constituer les feutres de longueur voulue au moyen de massicots situés à la verticale de chaque bande en défilement.A half-width fiber mat is in turn cut longitudinally into several strips, for example four, of equal width and corresponding to the desired width of the felt to be provided. These four strips are driven parallel to each other and undergo a transverse cutting operation to form the desired length felt by trimmers located vertically of each strip scroll.

En vue du conditionnement des feutres, chacune des quatre bandes constituée des feutres formés est déviée et acheminée par un convoyeur vers une machine de compression et d'emballage. Cette machine comprend un dispositif de réception placé directement au dessous de l'extrémité du convoyeur pour recevoir les feutres isolants. Après empilement d'un nombre prédéterminé de feutres, la pile est transférée dans une chambre de conditionnement pour subir une compression dans le sens de l'empilement, un film entourant l'empilement. Le film est ensuite collé ou soudé sur lui-même de manière à ceinturer l'empilement et la compression peut alors être relâchée.In order to package the felts, each of the four strips consisting of the formed felts is diverted and conveyed by a conveyor to a compression and packaging machine. This machine comprises a receiving device placed directly below the end of the conveyor to receive the insulating felts. After stacking a predetermined number of markers, the The stack is transferred to a conditioning chamber for compression in the stacking direction, a film surrounding the stack. The film is then glued or welded on itself so as to surround the stack and the compression can then be relaxed.

Quatre lignes d'acheminement et quatre machines de compression et d'emballage du type ci-dessus décrit sont donc nécessaire pour les quatre convoyeurs acheminant les quatre bandes de feutres du premier matelas de demi-largeur, et autant de machines sont ainsi utilisées pour le second matelas de demi-largeur.Four conveyor lines and four compression and packaging machines of the type described above are therefore necessary for the four conveyors conveying the four strips of felts of the first half-width mattress, and as many machines are thus used for the second half-width mattress.

La formation et le conditionnement des feutres isolants font donc appel à de nombreux dispositifs transporteurs et d'acheminement ainsi que machines de coupe, de compression et d'emballage. Or pour certaines usines de fabrication un espace suffisant pour loger ces lignes d'acheminement et ces machines s'avère difficile à ménager. Par ailleurs, la main d'oeuvre reste élevée puisque deux personnes sont généralement employées pour la surveillance et la maintenance des machines de coupe et de conditionnement. Enfin, ces machines chères à l'achat élèvent le coût de revient de l'ensemble d'une installation.The formation and conditioning of insulating felts thus make use of numerous conveyor and conveyor devices as well as cutting, compression and packaging machines. However, for some manufacturing plants, sufficient space to house these lines and these machines proves difficult to maintain. In addition, the workforce remains high since two people are generally employed for the monitoring and maintenance of cutting and packaging machines. Finally, these expensive machines purchase the cost of a whole installation.

L'invention se propose donc de fabriquer et conditionner des feutres isolants sans réclamer d'importants moyens d'acheminement, de coupe et de compression et d'emballage, sollicitant en conséquence une main d'oeuvre réduite.The invention therefore proposes to manufacture and package insulating felts without requiring large means of transport, cutting and compression and packaging, thereby requiring a reduced workforce.

Selon l'invention le procédé de formation et de conditionnement de feutres isolants de produits fibreux, en particulier de fibres minérales, à partir d'un matelas isolant défilant de manière continue sur un dispositif transporteur, comportant une étape de sciage longitudinal du matelas en plusieurs bandes parallèles de fibres entraînées par le dispositif transporteur est caractérisé en ce que

  • les bandes de fibres sont entraînées via au moins un dispositif de bifurcation et de convergence vers au moins un convoyeur de réception pour y être superposées les unes au-dessus des autres de manière à constituer au moins un empilement longitudinal des bandes minérales;
  • l'empilement est comprimé par des moyens de compression et découpé transversalement à l'état comprimé pour former les feutres isolants.
According to the invention the process for forming and conditioning insulating felts of fibrous products, in particular mineral fibers, from an insulating mat continuously moving on a conveyor device, comprising a step of longitudinally sawing the mattress in several parallel strips of fibers entrained by the conveying device is characterized in that
  • the fiber strips are driven via at least one bifurcation and convergence device to at least one receiving conveyor to be superimposed on each other so as to form at least one longitudinal stack of the mineral strips;
  • the stack is compressed by compression means and cut transversely in the compressed state to form the insulating felts.

Selon une caractéristique, les bandes de fibres parallèles sur le dispositif transporteur sont déviées de leur plan de défilement selon des directions angulaires montantes et/ou descendantes qui convergent vers un axe perpendiculaire au plan de défilement d'origine et au niveau duquel lesdites bandes espacées verticalement arrivent coplanaires.According to one characteristic, the parallel fiber strips on the conveyor device are deviated from their scrolling plane in directions rising and / or falling angular converging towards an axis perpendicular to the original scroll plane and at which said vertically spaced strips arrive coplanar.

Selon une autre caractéristique, les bandes de fibres coplanaires sont déposées par gravité sur le convoyeur de réception de façon à les superposer de manière alignée pour réaliser l'empilement longitudinal.According to another characteristic, the coplanar fiber strips are deposited by gravity on the receiving conveyor so as to superimpose them in an aligned manner in order to carry out the longitudinal stacking.

Avant découpe transversale de l'empilement comprimé pour obtenir les feutres, l'empilement est emballé autour de ses faces longitudinales et latérales.Before transverse cutting of the compressed stack to obtain the felts, the stack is wrapped around its longitudinal and lateral faces.

De préférence, les moyens de compression entraînent avec eux lors de la compression de l'empilement au moins un film d'emballage destiné à recouvrir lesdites faces longitudinales et latérales de l'empilement.Preferably, the compression means drive with them during compression of the stack at least one packaging film for covering said longitudinal and lateral faces of the stack.

Avantageusement, deux films d'emballage sont utilisés pour être appliqués contre les faces longitudinales, puis rabattus après compression de l'empilement contre les faces latérales et liés entre eux par des moyens de solidarisation.Advantageously, two packaging films are used to be applied against the longitudinal faces, then folded after compression of the stack against the side faces and interconnected by means of securing.

Lorsque le matelas de fibres en sortie de son dispositif de formage est découpé en deux matelas de largeur identique, il est prévu que les bandes de fibres issues des deux matelas bifurquent selon deux dispositifs de bifurcation et de convergence pour délivrer sur deux convoyeurs de réception respectifs deux empilements respectifs, les deux convoyeurs de réception étant positionnés pour converger en leur extrémité aval vers un troisième convoyeur de réception afin d'assurer la superposition des deux empilements de bandes selon un troisième empilement final destiné à être traité par les moyens de compression.When the fiber mattress at the outlet of its forming device is cut into two mattresses of identical width, it is provided that the fiber strips coming from the two mattresses bifurcate along two bifurcation and convergence devices to deliver on two respective receiving conveyors. two respective stacks, the two receiving conveyors being positioned to converge at their downstream end to a third receiving conveyor to ensure the superposition of the two stacks of strips according to a third final stack to be processed by the compression means.

Il est parfois utile préalablement à l'étape de sciage longitudinal du matelas en plusieurs bandes, de recouvrir ses faces supérieure et inférieure d'un revêtement fonctionnel, ainsi que simultanément ou juste en aval de cette étape de recouvrement de fendre en deux le matelas selon son épaisseur.It is sometimes useful, prior to the step of longitudinally sawing the mattress in several strips, to cover its top and bottom faces with a functional coating, as well as simultaneously or just downstream of this covering step of splitting the mattress in two. its thickness.

Selon l'invention, le dispositif de mise en oeuvre du procédé est caractérisé en ce que le dispositif de bifurcation et de convergence comporte des bandes transporteuses individuelles pour chacune des bandes de fibres, lesdites bandes transporteuses présentant leur point de départ à la jonction du dispositif transporteur et dans l'alignement des bandes de fibres, et leur point d'arrivée aligné selon un axe vertical et au-dessus du convoyeur de réception.According to the invention, the device for carrying out the method is characterized in that the bifurcation and convergence device comprises individual conveyor belts for each of the fiber strips, said conveyor belts having their starting point at the junction of the device. conveyor and in alignment with the fiber webs, and their arrival point aligned along a vertical axis and above the receiving conveyor.

De préférence, des flasques de guidage sont prévus de chaque côté et à l'extrémité amont du convoyeur de réception pour assurer l'alignement de l'empilement.Preferably, guide flanges are provided on each side and at the upstream end of the receiving conveyor to ensure alignment of the stack.

Selon une caractéristique, les moyens de compression consistent en deux tapis convergents dont les surfaces de pressage sont pourvues de films d'emballage pour un dépôt sur les faces longitudinales de l'empilement simultané à la compression.According to one characteristic, the compression means consist of two convergent mats whose pressing surfaces are provided with packaging films for deposition on the longitudinal sides of the simultaneous compression stack.

Selon une autre caractéristique, des moyens de coupe sont disposés en aval du dispositif de compression pour la découpe transversale de l'empilement comprimé et emballé.According to another characteristic, cutting means are arranged downstream of the compression device for transverse cutting of the compressed and packaged stack.

D'autres caractéristiques et avantages de l'invention vont à présent être décrits en regard des dessins annexés sur lesquels :

  • la figure 1 illustre une vue partielle d'une installation de formation et de conditionnement de feutres selon l'invention ;
  • la figure 1a est une vue en élévation d'une étape de fabrication des feutres de l'invention;
  • la figure 2 montre une vue de profil de la partie amont du dispositif de mise en oeuvre du procédé de l'invention;
  • la figure 3 est une vue en élévation de la figure 2 selon une variante de réalisation;
  • la figure 4 est une vue de dessus de la figure 2;
  • la figure 5 montre une vue de profil de la partie aval du dispositif de mise en oeuvre.
Other features and advantages of the invention will now be described with reference to the accompanying drawings in which:
  • the figure 1 illustrates a partial view of a training facility and packaging felt according to the invention;
  • the figure 1a is an elevational view of a manufacturing step of the felts of the invention;
  • the figure 2 shows a profile view of the upstream part of the device for implementing the method of the invention;
  • the figure 3 is an elevation view of the figure 2 according to an alternative embodiment;
  • the figure 4 is a top view of the figure 2 ;
  • the figure 5 shows a profile view of the downstream part of the implementation device.

Sur la figure 1 sont visibles des bandes 10 de laine minérale qui sont issues, de manière bien connue, au moyen de scies circulaires non illustrées, de découpes longitudinales de deux matelas de laine minérale de demi-largeur. Les matelas de demi-largeur sont issus d'un matelas fendu en deux longitudinalement lorsque les dimensions finales des feutres désirés l'imposent; c'est en effet le cas pour un matelas présentant en sortie de son dispositif de formage une largeur de 3,6 m, les feutres finaux devant présenter une largeur de 0,31 m.On the figure 1 mineral wool strips 10 which are well-known, by means of circular saws, not illustrated, of longitudinal cut-outs of two half-width mineral wool mattresses are visible. The half-width mattresses are from a mattress split in two longitudinally when the final dimensions of the desired felts impose it; this is indeed the case for a mattress having at the output of its forming device a width of 3.6 m, the final felt to have a width of 0.31 m.

Chaque matelas de demi-largeur est découpé en quatre bandes minérales 10 qui sont supportées et entraînées parallèlement par un dispositif transporteur 2 se déplaçant horizontalement dans la direction de la flèche 3.Each half-width mattress is cut into four mineral strips 10 which are supported and driven in parallel by a conveying device 2 moving horizontally in the direction of the arrow 3.

En fonction de l'épaisseur désirée du feutre final, il est parfois réalisée de manière connue, en sortie du dispositif de formage et en aval de la découpe du matelas de demi-largeur, une découpe horizontale pour fendre en deux l'épaisseur du matelas. On peut en outre prévoir, simultanément ou juste en amont de la découpe, de couvrir les faces supérieure 10a et inférieure 10b du matelas d'un revêtement fonctionnel 10c, comme illustré sur la figure 1 a.Depending on the desired thickness of the final felt, it is sometimes carried out in known manner, at the output of the forming device and downstream of the cut of the half-width mattress, a horizontal cut to split in two the thickness of the mattress . It is also possible to provide, simultaneously or just upstream of the blank, to cover the top and bottom faces 10a and 10b of the mat of a functional coating 10c, as illustrated in FIG. figure 1 at.

Un dispositif de bifurcation et de convergence 4, visibles sur les figures 1 à 4, est prévu en interruption du dispositif transporteur 2 pour acheminer séparément les quatre bandes minérales 10 dans des directions angulaires montantes et descendantes par rapport à la direction horizontale 3, et convergentes vers un axe A perpendiculaire au plan horizontal du dispositif transporteur 2.A bifurcation and convergence device 4, visible on the Figures 1 to 4 , is provided in interruption of the carrier device 2 for separately conveying the four mineral strips 10 in upward and downward angular directions with respect to the horizontal direction 3, and converging towards an axis A perpendicular to the horizontal plane of the conveying device 2.

Le dispositif de bifurcation et de convergence 4 a pour but d'acheminer les bandes minérales 10, à l'origine parallèles entre elles, pour les positionner les unes au-dessus des autres dans un même plan vertical.The purpose of the bifurcation and convergence device 4 is to route the mineral strips 10, initially parallel to one another, to position them above each other in the same vertical plane.

Le dispositif de bifurcation 4 consiste en quatre bandes transporteuses 40 qui prennent naissance à la jonction du dispositif 2 selon l'axe de chaque bande minérale 10 en défilement et qui aboutissent par leurs terminaisons 41 à la verticale d'un convoyeur de réception 5.The bifurcation device 4 consists of four conveyor belts 40 which originate at the junction of the device 2 along the axis of each moving mineral strip 10 and which end at their ends 41 vertically to a receiving conveyor 5.

Les bandes transporteuses 40 sont inclinables angulairement dans un plan vertical perpendiculaire à la direction horizontale 3 de manière à contrôler la hauteur de séparation entre chaque bande transporteuse afin de ménager un espace suffisant correspondant au moins à l'épaisseur d'une bande minérale, l'épaisseur des bandes étant fonction de l'épaisseur du matelas en sortie du dispositif de formage.The conveyor belts 40 are inclined angularly in a vertical plane perpendicular to the horizontal direction 3 so as to control the separation height between each conveyor belt in order to provide a sufficient space corresponding at least to the thickness of a mineral strip, the the thickness of the strips being a function of the thickness of the mattress at the output of the forming device.

Les bandes transporteuses 40 sont également inclinables angulairement dans un plan horizontal parallèle à la direction horizontale 3 afin d'ajuster la position des terminaisons 41 selon le même axe vertical A au niveau du convoyeur de réception 5.The conveyor belts 40 are also inclined angularly in a horizontal plane parallel to the horizontal direction 3 in order to adjust the position of the terminations 41 along the same vertical axis A at the level of the receiving conveyor 5.

Enfin, la longueur des bandes transporteuses 40 est adaptée en fonction de la vitesse de défilement des bandes minérales 10, de manière que les quatre bandes minérales 10 arrivent parfaitement coplanaires au niveau des terminaisons 41.Finally, the length of the conveyor belts 40 is adapted as a function of the running speed of the mineral strips 10, so that the four mineral strips 10 arrive perfectly coplanar at the terminations 41.

Le convoyeur de réception 5 accueille les quatre bandes minérales 10 qui, sont superposées les unes au-dessus des autres pour former un empilement longitudinal et aligné 11 des bandes.The receiving conveyor 5 accommodates the four mineral strips 10, which are superimposed one above the other to form a longitudinal stack and aligned 11 strips.

La superposition des bandes minérales 10 s'effectue selon un glissement par gravité depuis les terminaisons 41 sur le convoyeur de réception 5. Par conséquent, le convoyeur de réception est toujours situé en dessous de la bande transporteuse 40 la plus angulairement descendante.The superposition of the mineral strips 10 is carried out according to gravity sliding from the terminations 41 on the receiving conveyor 5. Consequently, the receiving conveyor is always located below the most angularly descending conveyor belt 40.

Dans le mode de réalisation décrit, les bandes transporteuses 40 convergentes sont montantes et descendantes par rapport au plan du dispositif transporteur 2 ; en variante, elles pourraient aussi bien être toutes montantes ou bien descendantes comme illustré à la figure 3, le convoyeur de réception 5 étant positionné au plus bas de l'ensemble.In the embodiment described, the convergent conveyor belts 40 are rising and falling relative to the plane of the conveyor device 2; alternatively, they could as well be all rising or falling as illustrated in FIG. figure 3 , the receiving conveyor 5 being positioned at the lowest point of the assembly.

De préférence, des flasques 50 visibles sur les figures 2 à 4 sont prévues sur les côtés et à l'extrémité amont du convoyeur de réception 5 pour guider linéairement, à leur réception, les bandes minérales sur le convoyeur.Preferably, flanges 50 visible on the Figures 2 to 4 are provided on the sides and at the upstream end of the receiving conveyor 5 to linearly guide, upon receipt, the mineral strips on the conveyor.

La figure 1 illustrant des bandes issues de deux tapis de demi-largeur, sont donc installés respectivement deux dispositifs de bifurcation et de convergence 4 et deux convoyeurs de réception 5. Bien entendu, le but final étant d'empiler toutes les bandes minérales 10 issu du tapis en sortie de dispositif de formage, les convoyeurs 5 qui transportent les bandes superposées des tapis respectifs de demi-largeur sont alors positionnés pour converger à leur tour vers un troisième convoyeur de réception 5 sur lequel se superposent l'ensemble des bandes superposées.The figure 1 illustrating strips coming from two half-width carpets, two bifurcation and convergence devices 4 and two receiving conveyors 5 are therefore installed respectively. Of course, the ultimate aim being to stack all the mineral strips 10 coming from the carpet With the output of the forming device, the conveyors 5 which convey the superimposed strips of the respective half-width mats are then positioned to converge in turn towards a third receiving conveyor 5 on which all the superimposed strips are superimposed.

Enfin, un dispositif de compression et d'emballage 6, visible à la figure 5, est installé à la suite du convoyeur de réception 5 afin de comprimer l'empilement 11 des quatre bandes minérales et de l'entourer d'un film d'emballage 7 pour le maintien en compression et le conditionnement ultérieur des feutres à obtenir.Finally, a compression and packaging device 6, visible to the figure 5 , is installed after the receiving conveyor 5 in order to compress the stack 11 of the four mineral strips and to surround it with a packaging film 7 for maintaining in compression and the subsequent conditioning of the felts to be obtained.

Le dispositif de compression et d'emballage 6 comporte deux tapis convoyeurs 60 inclinés et convergents vers l'aval dudit dispositif.The compression and packaging device 6 comprises two conveyor belts 60 inclined and convergent downstream of said device.

A l'entrée de chaque tapis 60 se trouve un système d'alimentation, non représenté, en film d'emballage délivrant deux films 7. Les deux films 7 présentent une largeur adaptée au recouvrement des surfaces longitudinales 12 de l'empilement 11 comprimé ainsi qu'au recouvrement desdits films sur les faces latérales 13 de l'empilement.At the entrance of each carpet 60 is a supply system, not shown, in packaging film delivering two films 7. The two films 7 have a width adapted to the overlap of the longitudinal surfaces 12 of the stack 11 and compressed than covering said films on the side faces 13 of the stack.

Les films 7 sont guidés par des rouleaux non illustrés de manière à entrer en contact respectivement avec chacune des surfaces de pressage des tapis 60 en vis-à-vis et destinées à être plaqués contre les faces longitudinales 12 de l'empilement 11.The films 7 are guided by non-illustrated rolls so as to come into contact respectively with each of the pressing surfaces of the belts 60 facing each other and intended to be pressed against the longitudinal faces 12 of the stack 11.

L'entraînement des fils se fait de préférence par le mouvement des tapis 60, ce qui assure aux films d'être tendus longitudinalement contre les faces longitudinales 12 de l'empilement 11.The threads are preferably driven by the movement of the belts 60, which ensures that the films are stretched longitudinally against the longitudinal faces 12 of the stack 11.

En fin de zone de compression, les tapis 60 présentent leurs surfaces de pressage parallèles et écartées d'une grandeur qui correspond à la hauteur finale désirée de compression de l'empilement 11, c'est-à-dire des feutres à réaliser.At the end of the compression zone, the belts 60 have their pressing surfaces parallel and spaced apart by a quantity that corresponds to the desired final height of compression of the stack 11, that is to say the felts to be produced.

Dans cette fin de zone de compression sont disposés des conformateurs 61 dont le rôle est de mettre en place les bords des films 7 contre les faces latérales 13 de l'empilement, ainsi que des moyens de solidarisation 62, notamment des buses à air chaud qui réalisent une soudure autogène de films plastiques adaptés, ou bien par apport d'une colle extérieure du type hot melt par exemple ou d'un adhésif double face.In this end of the compression zone are provided shapers 61 whose role is to set up the edges of the films 7 against the side faces 13 of the stack, as well as securing means 62, including hot air nozzles which perform an autogenous welding of suitable plastic films, or by providing an external glue type hot melt for example or a double-sided adhesive.

En sortie du dispositif de compression et d'emballage 6 sont disposés des moyens de découpe 8 du type massicot dont le rôle est de trancher transversalement l'empilement 11 des bandes minérales pour confectionner les feutres à la longueur voulue.At the outlet of the compression and packaging device 6 are cutter means 8 of the cutter type whose role is to cut transversely the stack 11 of the mineral strips to make the felt to the desired length.

Enfin, le conditionnement final des feutres, non visible et non explicité ici, est réalisé au moyen d'une machine traditionnelle qui empile un nombre déterminé de feutres et les enveloppe.Finally, the final packaging felt, not visible and not explained here, is achieved by means of a traditional machine that stacks a determined number of felts and envelopes.

La mise en oeuvre du procédé va à présent être décrit.The implementation of the method will now be described.

Le matelas de demi-largeur de fibres minérales est délivré sur le dispositif transporteur 2; tout en progressant selon la direction 3 il est découpé longitudinalement par des pour être transformé en plusieurs bandes minérales 10 parallèles entre elles.The half-width mattress of mineral fibers is delivered on the conveyor device 2; while progressing in the direction 3 it is cut longitudinally by to be converted into several parallel mineral strips 10 between them.

A l'extrémité aval du dispositif transporteur 2, les bandes transporteuses 40 du dispositif de bifurcation et de convergence 4 déroutent angulairement vers le haut et vers le bas, chacune des bandes de fibres 10 de façon que ces dernières arrivent au niveau des terminaisons 41 des bandes transporteuses selon un alignement vertical.At the downstream end of the conveyor device 2, the conveyor belts 40 of the bifurcation and convergence device 4 angularly deflect upwardly and downwardly each of the fiber strips 10 so that the latter arrive at the terminations 41 of the conveyor belts in a vertical alignment.

Les bandes minérales 10 quittent ensuite les terminaisons 41 et sont déposées par gravité sur le convoyeur de réception 5 afin de constituer l'empilement longitudinal 11.The mineral strips 10 then leave the terminations 41 and are deposited by gravity on the receiving conveyor 5 in order to constitute the longitudinal stack 11.

L'empilement 11 rentre ensuite dans le dispositif de compression 6, les faces longitudinales 12 de l'empilement entrant en contact avec les films 7 tendus contre les surfaces de pressage des tapis 60.The stack 11 then enters the compression device 6, the longitudinal faces 12 of the stack coming into contact with the films 7 stretched against the pressing surfaces of the belts 60.

Lors de son avancée vers le point des convergence des tapis 60, l'empilement 11 est comprimé ce qui engendre le débordement latéral des films d'emballage 7 contre les faces latérales 13 de l'empilement. En fin de compression, lorsque l'empilement est à la hauteur voulue, les conformateurs 61 rabattent correctement les films qui sont alors rendus solidaires par les buses de soudage 62.As it advances towards the convergence point of the belts 60, the stack 11 is compressed, which generates the lateral overflow of the packaging films 7 against the lateral faces 13 of the stack. At the end of compression, when the stack is at the desired height, the shapers 61 correctly fold the films which are then secured by the welding nozzles 62.

A la sortie du dispositif de compression et d'emballage 6 est découpé transversalement au moyen du massicot 8 l'empilement 11 comprimé et emballé, le massicot étant opérationnel périodiquement en fonction de la vitesse linéaire de déplacement de l'empilement pour obtenir la longueur de feutres adéquate.At the outlet of the compression and packaging device 6 is cut transversely by means of the paper cutter 8 the compressed and packaged stack 11, the cutter being periodically operational as a function of the linear speed of displacement of the stack to obtain the length of the stack. adequate pens.

L'invention permet donc grâce au dispositif de bifurcation et de convergence, et des moyens de guidage et de dépôt des bandes pour former l'empilement 11, de rassembler plusieurs bandes sous forme d'une seule ligne de traitement et d'opérer les compression et conditionnement et la découpe en une seule fois alors que l'état de la technique impose une ligne de traitement par bande minérale extraite du matelas de fibres d'origine.The invention therefore makes it possible, thanks to the bifurcation and convergence device, and means for guiding and depositing the strips to form the stack 11, to gather several strips in the form of a single treatment line and to operate the compression and packaging and cutting at once while the state of the art imposes a line of mineral strip treatment extracted from the original fiber mat.

Claims (13)

  1. Method for the formation and conditioning of insulating felts of fibrous products, in particular mineral fibres, from an insulating blanket travelling continuously on a transporting device (2), comprising a step involving the longitudinal sawing of the blanket into a plurality of parallel fibre strips (10) driven by the transporting device (2), characterized in that
    - the fibre strips (10) are driven via at least one branching-off and convergence device (4) towards at least one reception conveyor (5) in order to be superposed there one on top of the other so as to form at least one longitudinal stack (11) of mineral strips (10);
    - the stack (11) is compressed by compression means (6) and is cross-cut in the compressed state in order to form the insulating felts.
  2. Method according to Claim 1, characterized in that the parallel fibre strips (10) on the transporting device (2) are deflected from their travelling plane in rising and/or falling angular directions which converge towards an axis (A) which is perpendicular to the original travelling plane and level with which the said vertically spaced strips arrive in coplanar form.
  3. Method according to Claim 2, characterized in that the coplanar fibre strips (10) are deposited by gravity onto the reception conveyor (5), so as to be superposed in alignment in order to obtain the longitudinal stack (11).
  4. Method according to any one of Claims 1 to 3, characterized in that, before cross-cutting, the stack (11) is packaged around its longitudinal (12) and lateral (13) faces.
  5. Method according to Claim 4, characterized in that, during the compression of the stack (11), the compression means (6) drive with them at least one packaging film (7) intended for covering the said longitudinal (12) and lateral (13) faces of the stack.
  6. Method according to Claim 5, characterized in that two packaging films (7) are used in order to be applied against the longitudinal faces (12), then turned down against the lateral faces (13) after the compression of the stack and connected to one another by mutual fastening means (62).
  7. Method according to Claim 1, characterized in that the fibre strips (10) are branched off according to two branching-off and convergence devices (4) which deliver two respective stacks (11) onto two respective reception conveyors (5), the two reception conveyors (5) being positioned so as to converge at their downstream end towards a third reception conveyor (5), in order to ensure that the two strip stacks (11) are superposed in a third final stack (11) intended to be processed by the compression means (6).
  8. Method according to any one of Claims 1 to 7, characterized in that, before the step involving the longitudinal sawing of the blanket into a plurality of strips, the blanket is covered on its upper (10a) and lower (10b) faces with a functional covering (10c).
  9. Method according to Claim 8, characterized in that, simultaneously with or just downstream of the covering step, the blanket is split in two according to its thickness.
  10. Device for carrying out the method according to any one of Claims 1 to 7, characterized in that the branching-off and convergence device (4) comprises individual conveyor belts (41) for each of the fibre strips (10), the said conveyor belts (41) having their departure point at the junction of the transporting device (2) and in alignment with the fibre strips (10) and their arrival point aligned along a vertical axis (A) and above the reception conveyor (5).
  11. Device for carrying out the method according to Claim 8, characterized in that guide flanges (50) are provided on each side of and at the upstream end of the reception conveyor (5), in order to ensure the alignment of the stack (11).
  12. Device according to Claim 8, characterized in that the compression means (6) consist of two converging tracks (60), the pressing surfaces of which are provided with packaging films (7) for depositing on the longitudinal faces (12) of the stack (11) simultaneously with compression.
  13. Device according to Claim 8, characterized in that cutting means (8) are arranged downstream of the compression device (6) for the cross-cutting of the compressed and packaged stack (11).
EP01936549A 2000-05-17 2001-05-16 Method for forming and packaging insulation felts and device therefor Expired - Lifetime EP1285111B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0006265A FR2809119A1 (en) 2000-05-17 2000-05-17 METHOD OF FORMING AND PACKAGING INSULATING FELTS AND ITS IMPLEMENTING DEVICE
FR0006265 2000-05-17
PCT/FR2001/001501 WO2001088246A1 (en) 2000-05-17 2001-05-16 Method for forming and packaging insulation felts and device therefor

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EP1285111B1 true EP1285111B1 (en) 2008-09-24

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JP (1) JP4842492B2 (en)
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DE102010000661A1 (en) * 2010-01-04 2011-07-07 Acino Ag, 83714 Method and device for producing an overlapping protective film for a transdermal therapeutic system
JP6091692B1 (en) * 2016-09-20 2017-03-08 サン−ゴバン イゾベール Inorganic fiber laminate, vacuum heat insulating material using the same, and method for producing the same

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WO2001088246A1 (en) 2001-11-22
CA2408416A1 (en) 2001-11-22
DE60135910D1 (en) 2008-11-06
AU6243201A (en) 2001-11-26
CA2408416C (en) 2007-04-24
DK1285111T3 (en) 2009-02-02
JP2003533606A (en) 2003-11-11
CZ20023734A3 (en) 2003-04-16
PL363621A1 (en) 2004-11-29
CZ300714B6 (en) 2009-07-22
RU2256731C2 (en) 2005-07-20
AU782992B2 (en) 2005-09-15
SK16292002A3 (en) 2003-06-03
FR2809119A1 (en) 2001-11-23
JP4842492B2 (en) 2011-12-21
EP1285111A1 (en) 2003-02-26
SK287147B6 (en) 2010-01-07
ES2315285T3 (en) 2009-04-01
ATE409246T1 (en) 2008-10-15
US6298529B1 (en) 2001-10-09

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