EP0924329A1 - Dispositif et procédé d'aiguilletage de matériaux non-tissés en vue de fabriquer une nappe fibreuse isolante - Google Patents

Dispositif et procédé d'aiguilletage de matériaux non-tissés en vue de fabriquer une nappe fibreuse isolante Download PDF

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Publication number
EP0924329A1
EP0924329A1 EP98122104A EP98122104A EP0924329A1 EP 0924329 A1 EP0924329 A1 EP 0924329A1 EP 98122104 A EP98122104 A EP 98122104A EP 98122104 A EP98122104 A EP 98122104A EP 0924329 A1 EP0924329 A1 EP 0924329A1
Authority
EP
European Patent Office
Prior art keywords
needles
hold
needle
nonwoven
nonwoven fabric
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
EP98122104A
Other languages
German (de)
English (en)
Other versions
EP0924329B1 (fr
Inventor
Dieter Dr. Lerchbaumer
Christof Dipl.-Ing. Tschernuth
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.)
Knauf Insulation GmbH Austria
Original Assignee
Osterreichische Heraklith 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
Application filed by Osterreichische Heraklith AG filed Critical Osterreichische Heraklith AG
Publication of EP0924329A1 publication Critical patent/EP0924329A1/fr
Application granted granted Critical
Publication of EP0924329B1 publication Critical patent/EP0924329B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/10—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between yarns or filaments made mechanically
    • D04H3/115—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between yarns or filaments made mechanically by applying or inserting filamentary binding elements
    • 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
    • D04H1/46—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 by needling or like operations to cause entanglement of 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
    • D04H18/00—Needling machines
    • D04H18/02—Needling machines with needles

Definitions

  • the invention relates to a method and a device for needling nonwovens to produce an insulating mat.
  • needles are used used, which have barbs in the insertion direction the needles are aligned in the nonwoven fabric. With such Needles can only be made of high density non-woven fabrics because the barbs make the fiber structure strong compress.
  • the thickness of the product is the distance of the Hold-down and the needle length limited.
  • a disadvantage of these needles is that they are often too When the needles are pulled out, fibers are drawn out of the fleece, which mainly wind around the clamping or transition shaft of the needles. Over time, these fibers build up between the needle board and the scraper to form a felt that becomes the is difficult to remove and leads to irregular product quality.
  • the invention is based on the following knowledge:
  • the reverse needles mentioned are particularly suitable for the production of low-density insulation mats. It cannot be prevented that the reverse needles, when pulled out of the fiber mat, fibers Such fibers often hang like loops on the barbs of the needles.
  • the basic idea of the invention is the hold-down devices necessary for guiding the nonwoven fabric to adapt so that when the needles are removed there is no stripping effect as in the prior art is intentionally intended.
  • This is surprisingly successful simple way that the or the hold-down in the areas in which the needles are held down by the hold-down device are passed through, have correspondingly large openings, which prevent the above-mentioned stripping effect.
  • the carrying device can be designed with a large number of needles, which extend at a distance from one another over the entire width of the nonwoven fabric.
  • the carrying device as such is known from the prior art, and is usually used there Needle board ", the needles on a mostly rectangular base in Rows "and Columns "are arranged side by side with approximately the same distance.
  • each needle can corresponding opening in the hold-down assigned become.
  • One embodiment of the device provides for the opening of the hold-down device from an outwardly projecting form box-shaped section in which at least one Through opening for the needle (s) is arranged.
  • the device can, for example, with a Carrier be designed with an adjustable stroke to so the fiber fleece is targeted continuously or in certain areas needles (to felt).
  • the needles should be so far be moved out of the nonwoven that you free end slightly above a corresponding one Surface of the nonwoven is arranged before the Needles are returned to the nonwoven. On this ensures that entrained fibers in usually only be partially pulled out and not detach completely from the fiber composite. Can accordingly the fibers are also easier after the needles are returned (and parallel loosening of the attached fibers) back into the Fiber composite back, for example by subsequent surface sections of the hold-down on the Surface to be pushed back.
  • the method can also be designed in such a way that that the needles are clocked in and out of the nonwoven fabric the nonwoven are moved out.
  • the figures show - in a highly schematic representation - A partial view of an inventive Device in two successive production phases.
  • An approximately 30 mm thick mineral fiber fleece 10 is closed in FIG recognize which is transported in the direction of arrow T. It passes through a shaping device 12, which consists of two hold-downs 14, 16, which are parallel at a distance of 30 mm (corresponding to the thickness of the nonwoven fabric 10) are arranged.
  • the upper hold-down device 14 While the lower hold-down device 16 is flat overall is, the upper hold-down device 14 has a box-like Return 18 to form a cavity (Opening) 19 so that a partial surface 10t of the Nonwoven fabric 10, when it passes through the recess 18, is not supported by the hold-down device 14.
  • the box-shaped recess 18 has in its outer Base 18g an opening 18o through which a so-called Reverse needle 20 is guided at its free lower end has a barb 22 which slopes obliquely runs above.
  • the needle 20 is attached to a needle bar 24 which Is part of a lifting device for the needle 20.
  • the length the needle 20 is greater than the maximum stroke of the needle 20. Da both the needle bar 24 and the lifting device for State of the art and for example in EP 0 648 286 B1 are described to that extent Explanations are referenced.
  • the device works as follows:
  • the nonwoven fabric 10 is in the transport direction T through the Shaping device 12 performed.
  • the needle is cycled 20 perpendicular to the surface 10o of the nonwoven fabric 10 in the Fleece 10 moved in and then led out again.
  • the barb 22 causes the Needle 20 a needling (felting) of the fibers within of the fleece 10.
  • FIG. 2 shows a production phase in which the needle 20 has already been returned by a section and the fiber loop has come off the barb 22.
  • the device usually not a needle, but a variety of Has needles on a corresponding needle board. Out For better clarity is in the figures however only one needle is shown.
  • the insulating mat leaving the shaping device 12 becomes then supplied to the usual further process stages.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Nonwoven Fabrics (AREA)
EP98122104A 1997-12-17 1998-11-21 Dispositif et procédé d'aiguilletage de matériaux non-tissés en vue de fabriquer une nappe fibreuse isolante Expired - Lifetime EP0924329B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19756113A DE19756113C2 (de) 1997-12-17 1997-12-17 Vorrichtung und Verfahren zum Nadeln von Faservliesen zur Herstellung einer Dämmatte
DE19756113 1997-12-17

Publications (2)

Publication Number Publication Date
EP0924329A1 true EP0924329A1 (fr) 1999-06-23
EP0924329B1 EP0924329B1 (fr) 2002-07-24

Family

ID=7852256

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98122104A Expired - Lifetime EP0924329B1 (fr) 1997-12-17 1998-11-21 Dispositif et procédé d'aiguilletage de matériaux non-tissés en vue de fabriquer une nappe fibreuse isolante

Country Status (3)

Country Link
EP (1) EP0924329B1 (fr)
AT (1) ATE221150T1 (fr)
DE (2) DE19756113C2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3026113A1 (fr) * 2014-09-22 2016-03-25 Andritz Asselin Thibeau Dispositif d'aiguilletage comportant une table support ondulee

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3409959A (en) * 1965-06-23 1968-11-12 Resintex S A Process for manufacturing nonwoven fabrics
US4035881A (en) * 1974-03-12 1977-07-19 Josef Zocher Method and apparatus for producing non-woven textile product
GB2218717A (en) * 1988-05-17 1989-11-22 Fehrer Textilmasch Apparatus for needling a felt from one side
US5016331A (en) * 1988-07-18 1991-05-21 Oskar Dilo Maschinenfabrik K.G Device on needling machines for the production of needle-bonded fabric webs or the like
GB2239835A (en) * 1990-01-11 1991-07-17 Bp Chem Int Ltd Method for manufacturing composite material
US5384944A (en) * 1992-11-09 1995-01-31 Textilmaschinenfabrik Dr. Ernst Fehrer Aktiengesellschaft Needling plate with recesses on downstream edges of the through holes
JPH09302564A (ja) * 1996-05-09 1997-11-25 Okuma Mach Works Ltd 不織布製造におけるパンチング工程での風綿除去装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT275175B (de) * 1966-09-28 1969-10-10 Fehrer Maschf Dr Ernst Vorrichtung zum Nadeln von Faser- oder Haarvliesen
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
DE4222207C3 (de) * 1992-07-07 2002-04-04 Rockwool Mineralwolle Verfahren zum Herstellen von Mineralfaserprodukten und Vorrichtung zur Durchführung des Verfahrens
AT396793B (de) * 1992-08-11 1993-11-25 Fehrer Ernst Vorrichtung zum nadeln eines vlieses

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3409959A (en) * 1965-06-23 1968-11-12 Resintex S A Process for manufacturing nonwoven fabrics
US4035881A (en) * 1974-03-12 1977-07-19 Josef Zocher Method and apparatus for producing non-woven textile product
GB2218717A (en) * 1988-05-17 1989-11-22 Fehrer Textilmasch Apparatus for needling a felt from one side
US5016331A (en) * 1988-07-18 1991-05-21 Oskar Dilo Maschinenfabrik K.G Device on needling machines for the production of needle-bonded fabric webs or the like
GB2239835A (en) * 1990-01-11 1991-07-17 Bp Chem Int Ltd Method for manufacturing composite material
US5384944A (en) * 1992-11-09 1995-01-31 Textilmaschinenfabrik Dr. Ernst Fehrer Aktiengesellschaft Needling plate with recesses on downstream edges of the through holes
JPH09302564A (ja) * 1996-05-09 1997-11-25 Okuma Mach Works Ltd 不織布製造におけるパンチング工程での風綿除去装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 098, no. 003 27 February 1998 (1998-02-27) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3026113A1 (fr) * 2014-09-22 2016-03-25 Andritz Asselin Thibeau Dispositif d'aiguilletage comportant une table support ondulee

Also Published As

Publication number Publication date
EP0924329B1 (fr) 2002-07-24
DE19756113C2 (de) 2002-01-03
DE19756113A1 (de) 1999-07-01
DE59804873D1 (de) 2002-08-29
ATE221150T1 (de) 2002-08-15

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