EP2025788A1 - Dispositif et procédé destiné à la pose de bandes non tissées en tant que matériau isolant - Google Patents

Dispositif et procédé destiné à la pose de bandes non tissées en tant que matériau isolant Download PDF

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Publication number
EP2025788A1
EP2025788A1 EP07013035A EP07013035A EP2025788A1 EP 2025788 A1 EP2025788 A1 EP 2025788A1 EP 07013035 A EP07013035 A EP 07013035A EP 07013035 A EP07013035 A EP 07013035A EP 2025788 A1 EP2025788 A1 EP 2025788A1
Authority
EP
European Patent Office
Prior art keywords
cavity
fibers
nonwoven web
conveyor belt
nonwoven
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP07013035A
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German (de)
English (en)
Other versions
EP2025788B1 (fr
Inventor
Gerhard Huber
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to EP07013035A priority Critical patent/EP2025788B1/fr
Priority to DE502007006423T priority patent/DE502007006423D1/de
Priority to AT07013035T priority patent/ATE497554T1/de
Publication of EP2025788A1 publication Critical patent/EP2025788A1/fr
Application granted granted Critical
Publication of EP2025788B1 publication Critical patent/EP2025788B1/fr
Not-in-force legal-status Critical Current
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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
    • D04H1/70—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
    • D04H1/72—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 randomly arranged
    • 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
    • D04H1/425—Cellulose series
    • 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
    • D04H1/4266—Natural fibres not provided for in group D04H1/425
    • 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
    • D04H1/64—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 the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
    • 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
    • D04H1/72—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 randomly arranged
    • D04H1/736—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 randomly arranged characterised by the apparatus for arranging fibres

Definitions

  • the invention relates to a device for laying nonwoven webs and a corresponding method for laying nonwoven webs, wherein the nonwoven webs are preferably used as an insulating material.
  • Insulation materials are used in buildings for thermal insulation and / or sound insulation.
  • an insulating material are fibers, especially flakes of cellulose, which are obtained from waste paper.
  • fibers of natural products or fiber mixtures of cellulose fibers and natural fibers such.
  • wood fibers and hemp fibers are used. These fibers may further be incorporated with a fire retardant, a fungicidal agent and an insect repellent, and an adhesive as a binder.
  • the fibers may be scattered or poured. Subsequently, the scattered fibers are smoothed. The compound of the scattered fibers via an adhesive added to the fibers. After the adhesive has hardened, insulating panels are obtained which are suitable for mounting in hollow building walls, ceilings or floors. Alternatively, the insulation panels can be mounted on the outside of walls, ceilings or floors.
  • the device for laying nonwoven webs for insulation boards according to claim 1 comprises a cavity.
  • This cavity has at least one inlet for the pneumatic introduction of fibers, for example cellulose fibers, wood fibers or hemp fibers.
  • the fibers are blown into the cavity.
  • the introduced fibers add to a transverse section of a nonwoven web.
  • a conveyor for continuously feeding out the nonwoven web from the cavity is provided.
  • the fibers are pneumatically introduced into a cavity
  • the fibers can connect in sections to a nonwoven, wherein the nonwoven by the pneumatic introduction and continuous feeding out of the laid nonwoven fabric has a homogeneous structure.
  • pneumatic introduction means an introduction by means of air, for example by blowing in the fibers.
  • the conveying means is a conveyor belt which at least partially delimits the cavity on one side of the cavity, for example on the underside of the cavity.
  • the introduced fibers thus fit on the conveyor belt to a fleece, which is continuously conveyed out of the cavity.
  • the conveyor belt should advantageously have a non-slip surface, so that the fibers can not slip on the conveyor belt.
  • the cavity is limited by two first boundary surfaces, which are arranged on the right and left side of the conveyor belt. These are advantageously aligned parallel to the conveying direction. Further, a second boundary surface may be provided, which is disposed on the side of the cavity, which is opposite to the application side of the cavity. In this case, the application side is the side of the cavity, on which the nonwoven web is conveyed out of the cavity. Finally, a third boundary surface can be provided, which is arranged on the opposite side of the conveyor belt.
  • the cavity is variable in its dimensions, for example in its height, width and / or length.
  • the distance between the two first boundary surfaces is adjustable to each other, so that nonwoven webs of different widths can be produced.
  • the distance between the third boundary surface and the conveyor belt can advantageously be adjusted so that nonwoven webs of different thicknesses can be produced.
  • a closure means for example a slide or a flap, is provided, by means of which the cavity on the application side is selectively opened or closed.
  • the application side is closed by means of the closure means in order to prevent an uncontrolled discharge of material during the subsequent pneumatic introduction of the fibers.
  • these fibers act as a seal of the cavity, so that the closure means can be opened.
  • the portion of the laid nonwoven web immediately adjacent to the application side exits the cavity via the conveying means, whereby nonwoven material for sealing the cavity is continuously tracked via the conveying means.
  • the conveying direction of the conveying means is typically horizontal.
  • a vertical conveying direction or a conveying direction at a certain elevation angle with a vertical component could also be provided, wherein the height increases in the conveying direction or alternatively decreases.
  • a vertical conveying direction or at least one conveying direction with a sufficiently vertical component the homogeneity of the nonwoven structure, in particular on the upper side of the nonwoven structure, can be further increased. Differences in distribution The laid fibers thus do not act directly on the upper side of the nonwoven structure but only on the nonwoven structure in the vertical conveying direction. Furthermore, the influence of gravity, the flaky material is better connected.
  • the inlets can optionally be arranged on each side of the cavity.
  • the cavity has at least two inlets disposed on opposite sides of the cavity, for example an inlet in the boundary surface to the right of the conveyor belt and an inlet in the boundary surface to the left of the conveyor belt.
  • the device further comprises a means for the controlled removal of excess air from the cavity, for example an extraction.
  • a suction advantageously comprises a suction funnel, which is connected via an air line with a blower, which directs the extracted air into the environment.
  • the means for the controlled discharge of excess air can be realized with a single exhaust duct or with a plurality of exhaust ducts.
  • the means should advantageously further comprise a filter for filtering the exhaust air. As a result, the fiber dust is removed from the exhaust air, so that the dust load is reduced. In addition, the filtered dust can then be recycled to the manufacturing process.
  • the fibers advantageously have an adhesive.
  • a device for curing the adhesive is advantageously also provided, for example a furnace.
  • the device for curing the adhesive is advantageously connected to the conveying means directly or via a further conveying means, for example with a second conveyor belt, which has the same conveying speed as the conveying means below the cavity.
  • a further conveying means for example with a second conveyor belt, which has the same conveying speed as the conveying means below the cavity.
  • fibers are continuously pneumatically introduced into a cavity, for example blown in, with the introduced fibers being added to a section of a nonwoven web in the cavity.
  • the nonwoven web is continuously conveyed out of the cavity.
  • Fig. 1 shows an embodiment of the device according to the invention for laying nonwoven webs (hereinafter referred to as fleece laying system) in the front view (the conveyor belt direction points into the plane of the drawing) with a horizontal conveyor belt direction.
  • the fleece laying plant is operated by at least one pneumatic conveying device 1, for example a blowing machine 1, which comprises a loose fiber mixture of cellulose fibers and / or natural fibers (for example wood fibers or hemp fibers), for example with a typical fiber length of 5 mm, which is adhesively bonded, Fire, mold and insect repellent are added, in the inventive fleece plant pneumatically introduces, for example, blows.
  • a blowing machine 1 which comprises a loose fiber mixture of cellulose fibers and / or natural fibers (for example wood fibers or hemp fibers), for example with a typical fiber length of 5 mm, which is adhesively bonded, Fire, mold and insect repellent are added, in the inventive fleece plant pneumatically introduces, for example, blows.
  • a respective pneumatic conveying device 1 for pneumatic insertion on the left side of the cavity 6 and on the right side of the cavity 6 are provided, of which in Fig. 1 only the left pneumatic conveyor 1 is shown. It is true that the larger the width of the laid fleece, the more pneumatic conveyors are required.
  • Each pneumatic conveyor 1 is connected via a conveyor line 2 (in the form of a tube or a hose) with the fleece laying plant.
  • the cavity 6 of in Fig. 1 illustrated embodiment of the nonwoven plant is a cuboid cavity.
  • the cuboid cavity 6 is on the left and right in Fig. 1 bounded by side surfaces 8, in each of which an inlet for introducing the delivery line and pneumatic introduction of the fibers is provided.
  • the inlets could also be arranged on the front side or the top of the cavity 6.
  • a further boundary surface is provided, which in Fig. 1 for reasons of representability of the cavity 6 is not shown.
  • a conveyor 3 Down the entire cavity 6 by a conveyor 3, in particular a conveyor belt 3, limited.
  • two conveyor means (not shown), namely a conveyor at the top of the cavity 6 and a conveyor at the bottom of the cavity 6 may be provided.
  • the cavity 6 can be selectively closed or opened by a start slider 5 with a plate movable up and down via the associated opening and closing mechanism 7.
  • the application side is closed via the starting slide 5 in order to prevent an uncontrolled discharge of material during the subsequent pneumatic introduction, in particular blowing, of the fibers.
  • the start slider 5 is pneumatically pressed onto the conveyor belt 3 to seal the cavity 6, so that a draft is prevented via the application side.
  • the fibers of the laid nonwoven fabric running onto the application side act as a seal, so that the starting slider 5 can be opened.
  • the application side of the cavity 6 is thus sealed by the start slider during operation of the batt laying system and in operation by the laid material.
  • an extraction with a funnel-shaped air cap 4 is provided, which is arranged at the front end of the cavity 6 above the cavity 6.
  • the Excess, introduced air exits from the cavity 6 via a arranged in the front region of the cavity 6 grid (not shown) and is then sucked from the air vent 4.
  • the air cap 4 is connected via an air line with a fan (not shown).
  • the dust is separated from the air by means of one or more filters (not shown) and the filtered air is directed into the environment. The filtered dust can then be returned to the manufacturing process.
  • Fig. 2 shows that in Fig. 1 shown embodiment in side view (from the right side in Fig. 1 from).
  • the cavity 6 extends approximately in the longitudinal direction of the funnel-shaped air cap 4 (the front side wall is in Fig. 2 as in Fig. 1 not shown) to the start slider 5.
  • the inlet (not shown) for the pneumatic conveyor is located approximately 50 cm from the front end of the cavity 6.
  • the cavity is filled only in an area of a certain length in the immediate vicinity of the lateral inlets.
  • At least one viewing window which are embedded in the walls of the cavity, is provided.
  • At the in Fig. 2 illustrated embodiment are located in both side surfaces 8 of the cavity 6 each have a front 9 and a rear 10 viewing window, whereby the manufacturing process can be checked visually.
  • an oven (not shown) is optionally provided, which is connected to the nonwoven laying machine via a further conveying means, in particular conveyor belt, and serves to cure the adhesive added to the fibers.
  • the cavity is about 3 meters long and nominally 2.5 meters wide.
  • the upper boundary surface of the cavity 6 is formed by three adjacent plates. If a smaller width is desired for the nonwoven webs, the two outer panels can be removed and the spacing of the left and right side panels 8 corresponding to the width of the remaining central panel reduced to about 1.25 meters.
  • the distance of the upper boundary surface to the conveyor 3 individually set. This distance corresponds approximately to the thickness of the later insulation board. Here, an adjustment range of 5 to 50 cm is provided.
  • Essential parameters of the fleece laying system are the volume of the cavity 6, the amount of air, the speed of air and the amount of material whose choice influences the homogeneity of the laid fleece. It is true that the larger the volume of the cavity, the greater the amount of air, air velocity and amount of material should be selected to completely fill the cavity. Furthermore, in the case of Fig. 1 and 2 illustrated embodiment, the conveyor belt speed depending on the web height and depending on the necessary duration of curing of the adhesive in the further processing are continuously adjusted.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Nonwoven Fabrics (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Insulating Bodies (AREA)
EP07013035A 2007-07-03 2007-07-03 Dispositif et procédé destiné à la pose de bandes non tissées en tant que matériau isolant Not-in-force EP2025788B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP07013035A EP2025788B1 (fr) 2007-07-03 2007-07-03 Dispositif et procédé destiné à la pose de bandes non tissées en tant que matériau isolant
DE502007006423T DE502007006423D1 (de) 2007-07-03 2007-07-03 Vorrichtung und Verfahren zum Legen von Vliesbahnen als Dämmstoff
AT07013035T ATE497554T1 (de) 2007-07-03 2007-07-03 Vorrichtung und verfahren zum legen von vliesbahnen als dämmstoff

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07013035A EP2025788B1 (fr) 2007-07-03 2007-07-03 Dispositif et procédé destiné à la pose de bandes non tissées en tant que matériau isolant

Publications (2)

Publication Number Publication Date
EP2025788A1 true EP2025788A1 (fr) 2009-02-18
EP2025788B1 EP2025788B1 (fr) 2011-02-02

Family

ID=38669656

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07013035A Not-in-force EP2025788B1 (fr) 2007-07-03 2007-07-03 Dispositif et procédé destiné à la pose de bandes non tissées en tant que matériau isolant

Country Status (3)

Country Link
EP (1) EP2025788B1 (fr)
AT (1) ATE497554T1 (fr)
DE (1) DE502007006423D1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4043005A (en) * 1975-05-13 1977-08-23 E. I. Du Pont De Nemours & Company Process for forming a staple fiber batt
GB2283028A (en) * 1993-10-19 1995-04-26 Kimberly Clark Co Forming belt for making profiled layers
DE4409416C1 (de) * 1994-03-18 1995-08-17 Gruenzweig & Hartmann Mineralwolle-Dämmplatte, ihre Verwendungen und Verfahren zu ihrer Herstellung
WO2002012605A2 (fr) * 2000-08-03 2002-02-14 Kimberly-Clark Worldwide, Inc. Appareil multichambre de formation de voile absorbant stabilisé et procédé correspondant
USH2105H1 (en) * 2002-09-12 2004-06-01 Akiva Pinto Method and apparatus forming a fiber web
US20050045296A1 (en) * 2003-08-29 2005-03-03 Adam Gabriel Hammam Stabilized absorbent composite material and method for making
WO2007020065A1 (fr) * 2005-08-19 2007-02-22 Rockwool International A/S Procede et appareil de production de produits a base de fibres vitreuses synthetiques
WO2007033158A2 (fr) 2005-09-12 2007-03-22 Sellars Absorbent Materials, Inc. Procédé et dispositif pour fabriquer une serviette, un mouchoir et des raclettes sur un cardage à l'air ou une ligne de flux d'air utilisant des liaisons d'hydrogène

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4043005A (en) * 1975-05-13 1977-08-23 E. I. Du Pont De Nemours & Company Process for forming a staple fiber batt
GB2283028A (en) * 1993-10-19 1995-04-26 Kimberly Clark Co Forming belt for making profiled layers
DE4409416C1 (de) * 1994-03-18 1995-08-17 Gruenzweig & Hartmann Mineralwolle-Dämmplatte, ihre Verwendungen und Verfahren zu ihrer Herstellung
WO2002012605A2 (fr) * 2000-08-03 2002-02-14 Kimberly-Clark Worldwide, Inc. Appareil multichambre de formation de voile absorbant stabilisé et procédé correspondant
USH2105H1 (en) * 2002-09-12 2004-06-01 Akiva Pinto Method and apparatus forming a fiber web
US20050045296A1 (en) * 2003-08-29 2005-03-03 Adam Gabriel Hammam Stabilized absorbent composite material and method for making
WO2007020065A1 (fr) * 2005-08-19 2007-02-22 Rockwool International A/S Procede et appareil de production de produits a base de fibres vitreuses synthetiques
WO2007033158A2 (fr) 2005-09-12 2007-03-22 Sellars Absorbent Materials, Inc. Procédé et dispositif pour fabriquer une serviette, un mouchoir et des raclettes sur un cardage à l'air ou une ligne de flux d'air utilisant des liaisons d'hydrogène

Also Published As

Publication number Publication date
EP2025788B1 (fr) 2011-02-02
DE502007006423D1 (de) 2011-03-17
ATE497554T1 (de) 2011-02-15

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