DE3929961C1 - Mfr 2 yarn bands from spun bonded thermoplastic filaments - using plant having cooling chute with suction air cooling device in top section above blow air cooling area and below spinneret platen - Google Patents

Mfr 2 yarn bands from spun bonded thermoplastic filaments - using plant having cooling chute with suction air cooling device in top section above blow air cooling area and below spinneret platen

Info

Publication number
DE3929961C1
DE3929961C1 DE19893929961 DE3929961A DE3929961C1 DE 3929961 C1 DE3929961 C1 DE 3929961C1 DE 19893929961 DE19893929961 DE 19893929961 DE 3929961 A DE3929961 A DE 3929961A DE 3929961 C1 DE3929961 C1 DE 3929961C1
Authority
DE
Germany
Prior art keywords
cooling
air cooling
area
suction
chute
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 - Fee Related
Application number
DE19893929961
Other languages
German (de)
Inventor
Alexander 5305 Alfter De Tritsch-Olian
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.)
Reifenhaeuser GmbH and Co KG Maschinenenfabrik
Original Assignee
Reifenhaeuser GmbH and Co KG Maschinenenfabrik
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 Reifenhaeuser GmbH and Co KG Maschinenenfabrik filed Critical Reifenhaeuser GmbH and Co KG Maschinenenfabrik
Priority to DE19893929961 priority Critical patent/DE3929961C1/en
Application granted granted Critical
Publication of DE3929961C1 publication Critical patent/DE3929961C1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00Formation of filaments, threads, or the like
    • D01D5/08Melt spinning methods
    • D01D5/088Cooling filaments, threads or the like, leaving the spinnerettes
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING 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
    • D04H3/00Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/005Synthetic yarns or filaments
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING 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
    • D04H3/00Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/02Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING 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
    • D04H3/00Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/16Non-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 thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Abstract

An installation is for the production of two yarn bands out of thermoplastic filaments in the course of spunbonded manufacture. It features a cooling chute with a suction air cooling device in its top section above the blow air cooling area and below the spinneret platten. The device is equipped with lateral suction ducts in the area of the cooling chute walls and with at least one central suction duct in the area of the cooling chute positioning. The suction area cooling device is also equipped for monomer sucking. ADVANTAGE - The installation achieves greater productivity.

Description

Die Erfindung betrifft eine Vorrichtung für die Erzeugung von zwei Fadenscharen aus Filamenten aus thermoplastischem Kunststoff im Zuge der Spinnvliesherstellung, mit einem Verteilerdom für den thermo­ plastifizierten Kunststoff, zwei parallelen Spinndüsenplatten und mit einem Kühlschacht, wobei der Kühlschacht durch eine mittige Trennwand geteilt ist, an der beidseits je eine der Fadenscharen vorbeigeführt ist, und wobei der Kühlschacht einen Blasluftkühlbereich mit Querstrom­ kühlung und Blasluftdüsenöffnungen in den Kühlschachtwänden und in der Trennwand aufweist. Es versteht sich, daß die Spinndüsenplatten mit weiteren Werkzeugteilen für die Filamentfadenbildung zusammen arbeiten können, z. B. mit vorgeschalteten Filtersieben, Lochplatten u. dgl.The invention relates to a device for generating two Filaments of filaments made of thermoplastic material on the train spunbond production, with a distributor dome for thermo plasticized plastic, two parallel spinneret plates and with a cooling shaft, the cooling shaft through a central partition is divided, past each of the thread groups on both sides and wherein the cooling shaft is a blown air cooling area with cross flow cooling and blow air nozzle openings in the cooling shaft walls and in the partition has. It is understood that the spinneret plates with other tool parts for filament thread formation can work e.g. B. with upstream filter screens, perforated plates u. the like

Bei der bekannten Vorrichtung, von der die Erfindung ausgeht (DE 37 01 531 A1), erstreckt sich der Blasluftbereich des Kühlschachtes nach oben hin bis zu den Düsenplatten. Das hat sich bewährt. Man erreicht eine sehr gleichmäßige Kühlung der Filamente in den Fadenscharen und kann die Verstreckung der Filamente sehr genau steuern, indem man die Blasluft steuert. Die Leistung der bekannten Vorrichtung kann jedoch nur wenig beeinflußt werden.In the known device from which the invention is based (DE 37 01 531 A1), the blown air area of the cooling shaft extends up to the nozzle plates. That has proven itself. You get there very even cooling of the filaments in the thread sheets and can control the stretching of the filaments very precisely by you control the blowing air. However, the performance of the known device can be influenced little.

Der Erfindung liegt die Aufgabe zugrunde, bei einer Vorrichtung des eingangs beschriebenen Aufbaues ohne Beeinträchtigung der gleich­ mäßigen Kühlung der Filamente in den Fadenscharen und ohne Beein­ trächtigung der Verstreckung bei sonst gleichen Verhältnissen die Leistung wesentlich zu verbessern, so daß die Vorrichtung in der Zeiteinheit mehr produzieren kann. The invention has for its object in a device of initially described structure without affecting the same moderate cooling of the filaments in the thread sheets and without legs pregnancy of the stretching under otherwise identical conditions Performance significantly improve, so that the device in the Unit of time can produce more.  

Zur Lösung dieser Aufgabe lehrt die Erfindung, daß der Kühlschacht in seinem oberen Bereich oberhalb des Blasluftkühlbereiches und unter­ halb der Spinndüsenplatten eine Saugluftkühleinrichtung aufweist, die mit seitlichen Absaugkanälen im Bereich der Kühlschachtwände sowie mit zumindest einem zentralen Absaugkanal im Bereich der Trennwand versehen ist, und daß die Saugluftkühleinrichtung zugleich für die Monomerabsaugung eingerichtet ist. Nach bevorzugter Ausführungsform sind die Blasluftkühlung einerseits sowie die Saugluftkühlung anderer­ seits unabhängig voneinander steuerbar und/oder regelbar. Es versteht sich, daß die Saugluftkühlung mit Kühlluft durchgeführt wird, die über die Blasluftdüsenöffnungen im Blasluftkühlbereich in den Kühlschacht eingeführt wird. Die Absaugleistung wird so eingestellt, daß ein ent­ sprechender Anteil dieser Kühlluft als Saugluft den seitlichen Absaug­ kanälen und dem zentralen Absaugkanal zufließt. Durch die Einstellung der Blasluftkühlung bzw. der Saugluftkühlung lassen sich die Mengen­ ströme beeinflussen. Durch Saugluftkühlung in dem oberen Bereich des Kühlschachtes unmittelbar unter den Spinndüsenplatten wird eine sehr intensive Kühlung mit großen Temperaturgradienten in der Zeiteinheit bewirkt. Die Saugluftkühlung bewirkt auch eine beachtliche Leistungs­ steigerung. Gleichzeitig wird auch eine Monomer­ absaugung erreicht.To achieve this object, the invention teaches that the cooling shaft in its upper area above the blown air cooling area and below half of the spinneret plates has a suction air cooling device that with side suction channels in the area of the cooling shaft walls as well with at least one central suction channel in the area of the partition is provided, and that the suction air cooling device at the same time for the Monomer suction is set up. According to a preferred embodiment are blown air cooling on the one hand and suction air cooling on the other can be controlled and / or regulated independently of one another. It understands themselves that the suction air cooling is carried out with cooling air that over the blown air nozzle openings in the blown air cooling area in the cooling shaft is introduced. The suction power is set so that an ent speaking portion of this cooling air as suction air the side suction channels and flows to the central suction channel. By hiring the quantities of blown air cooling or suction air cooling influence currents. By suction air cooling in the upper area of the Cooling shaft directly under the spinneret plates becomes a very intensive cooling with large temperature gradients in the time unit causes. Suction air cooling also has a remarkable performance increase. At the same time it becomes a monomer suction reached.

Eine den Kühlschacht allseitig umgebende Saugluftkühlung ist für sich bekannt (DE 35 33 790 A1). Eine intensive Kühlung durch Luftkühlab­ leitung im oberen Bereich des Kühlschachtes ist ebenfalls bekannt (GB 20 77 181), wobei die Kühlgasableitung zugleich auch für die Monomerabsaugung eingerichtet werden kann (EP 00 46 571 B1).Suction air cooling surrounding the cooling shaft on all sides is in itself known (DE 35 33 790 A1). Intensive cooling through air cooling Line in the upper area of the cooling shaft is also known (GB 20 77 181), the cooling gas discharge also for the Monomer suction can be set up (EP 00 46 571 B1).

Im folgenden wird die Erfindung anhand einer Zeichnung ausführlicher erläutert. Die einzige Figur zeigt in schematischer Darstellung einen Vertikalschnitt durch den oberen Teil einer erfindungsgemäßen Vor­ richtung.In the following the invention will be explained in more detail with reference to a drawing explained. The single figure shows a schematic representation of one Vertical section through the upper part of a front according to the invention direction.

Die in der Figur dargestellte Vorrichtung dient für die Erzeugung von zwei Fadenscharen aus Filamenten F aus thermoplastischem Kunststoff im Zuge der Spinnvliesherstellung. Zum grundsätzlichen Aufbau gehören ein Verteilerdom 1 für den thermoplastifizierten Kunststoff, zwei parallele Spinndüsenplatten 2 und ein Kühlschacht 3. Der Kühlschacht 3 ist durch eine mittige Trennwand 4 geteilt, an der beidseits jeweils eine der Fadenscharen F vorbeigeführt wird. Der Kühlschacht 3 be­ sitzt einen Blasluftkühlbereich 3a mit Querstromkühlung und Blasluft­ düsenöffnungen 5 in den Kühlschachtwänden 6 und in der Trennwand 4. Es versteht sich, daß die Spinndüsenplatten 2 und der Kühlschacht 3 sich orthogonal zur Zeichenebene nach Maßgabe der Breite der zu erzeugenden Fadenscharen F erstrecken.The device shown in the figure is used for the production of two sets of filaments F made of thermoplastic material in the course of spunbond production. The basic structure includes a distributor dome 1 for the thermoplastic, two parallel spinneret plates 2 and a cooling shaft 3 . The cooling shaft 3 is divided by a central partition 4 , on each of which one of the thread sheets F is passed. The cooling shaft 3 be sits a blown air cooling area 3 a with cross-flow cooling and blown air nozzle openings 5 in the cooling shaft walls 6 and in the partition 4th It is understood that the spinneret plates 2 and the cooling shaft 3 extend orthogonally to the plane of the drawing in accordance with the width of the thread sheets F to be produced.

Der Kühlschacht 3 weist in seinem oberen Bereich oberhalb des Blas­ luftkühlbereichs 3a und unterhalb der Spinndüsenplatten 2 eine Saug­ luftkühleinrichtung 3b auf. Diese ist mit seitlichen Absaugkanälen 7 im Bereich der Kühlschachtwände 6 sowie mit zumindest einem zentralen Absaugkanal 8 im Bereich der Trennwand 4 versehen. Die Saugluft­ kühleinrichtung 3b ist zugleich für die Monomerabsaugung eingerichtet. Die Blasluftkühlung einerseits sowie die Saugluftkühlung anderer­ seits sind unabhängig voneinander steuer- und/oder regelbar. Durch Pfeile wurden sowohl die Blasluftströmungen als auch die Saugluft­ strömungen angedeutet. Es versteht sich, daß vor den Blasluftdüsen­ öffnungen 5 Strömungsgleichrichter angeordnet sein können. - Es ver­ steht sich, daß auch die erforderlichen Dichtungen 9 angeordnet sind.The cooling shaft 3 has in its upper area above the blowing air cooling area 3 a and below the spinneret plates 2 a suction air cooling device 3 b. This is provided with lateral suction channels 7 in the area of the cooling shaft walls 6 and with at least one central suction channel 8 in the area of the dividing wall 4 . The suction air cooling device 3 b is also set up for the monomer suction. The blown air cooling on the one hand and the suction air cooling on the other hand can be controlled and / or regulated independently of one another. Arrows indicated both the blown air flows and the suction air flows. It goes without saying that 5 flow straighteners can be arranged in front of the blower air nozzle. - It is understood that the necessary seals 9 are arranged.

Claims (2)

1. Vorrichtung für die Erzeugung von zwei Fadenscharen aus Filamenten aus thermoplastischem Kunststoff im Zuge der Spinnvliesherstellung, mit einem Verteilerdom für den thermoplastifizierten Kunststoff, zwei parallelen Spinndüsenplatten und mit einem Kühlschacht, wobei der Kühlschacht durch eine mittige Trennwand geteilt ist, an der beidseits je eine der Fadenscharen vorbeigeführt ist, und wobei der Kühlschacht einen Blasluftkühlbereich mit Querstromkühlung und Blasluftdüsen­ öffnungen in den Kühlschachtwänden und in der Trennwand aufweist, dadurch gekennzeichnet, daß der Kühlschacht (3) in seinem oberen Bereich oberhalb des Blasluftkühlbereichs und unter­ halb der Spinndüsenplatten (2) eine Saugluftkühleinrichtung (3b) aufweist, die mit seitlichen Absaugkanälen (7) im Bereich der Kühlschachtwände (6) sowie mit zumindest einem zentralen Absaugkanal (8) im Bereich der Trennwand (4) versehen ist, und daß die Saugluftkühleinrichtung (3b) zugleich für die Monomerabsaugung eingerichtet ist.1.Device for the production of two sets of threads from filaments made of thermoplastic in the course of spunbond production, with a distributor dome for the thermoplastic, two parallel spinneret plates and with a cooling shaft, the cooling shaft being divided by a central partition, one on each side of the thread sheets is passed, and wherein the cooling shaft has a blown air cooling area with cross-flow cooling and blown air nozzle openings in the cooling shaft walls and in the partition, characterized in that the cooling shaft ( 3 ) in its upper area above the blown air cooling area and below half the spinneret plates ( 2 ) Has suction air cooling device ( 3 b), which is provided with lateral suction channels ( 7 ) in the area of the cooling shaft walls ( 6 ) and with at least one central suction channel ( 8 ) in the area of the partition ( 4 ), and that the suction air cooling device ( 3 b) also for the monomer suction is set up. 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Blasluftkühlung einerseits sowie die Saugluftkühlung andererseits unab­ hängig voneinander steuerbar und/oder regelbar sind.2. Device according to claim 1, characterized in that the Blown air cooling on the one hand and suction air cooling on the other hand independent can be controlled and / or regulated independently of one another.
DE19893929961 1989-09-08 1989-09-08 Mfr 2 yarn bands from spun bonded thermoplastic filaments - using plant having cooling chute with suction air cooling device in top section above blow air cooling area and below spinneret platen Expired - Fee Related DE3929961C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19893929961 DE3929961C1 (en) 1989-09-08 1989-09-08 Mfr 2 yarn bands from spun bonded thermoplastic filaments - using plant having cooling chute with suction air cooling device in top section above blow air cooling area and below spinneret platen

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DE19893929961 DE3929961C1 (en) 1989-09-08 1989-09-08 Mfr 2 yarn bands from spun bonded thermoplastic filaments - using plant having cooling chute with suction air cooling device in top section above blow air cooling area and below spinneret platen

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DE3929961C1 true DE3929961C1 (en) 1991-01-24

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2710661A1 (en) * 1993-09-30 1995-04-07 Polyfelt Gmbh Method and apparatus for making nonwoven spunbonded sheets
WO1998029583A1 (en) * 1996-12-30 1998-07-09 Kimberly-Clark Worldwide, Inc. Nonwoven process and apparatus
EP1340843A1 (en) * 2002-02-28 2003-09-03 Reifenhäuser GmbH & Co. Maschinenfabrik Apparatus for the continuous production of a spunbonded web
WO2008071658A2 (en) * 2006-12-12 2008-06-19 Oerlikon Textile Gmbh & Co. Kg Method and device for melt spinning and cooling synthetic filaments

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2077181A (en) * 1980-05-05 1981-12-16 Kimberly Clark Co Forming non-woven webs
EP0046571B1 (en) * 1980-08-21 1984-05-23 Badische Corporation Chip - free staple fiber process
DE3533790A1 (en) * 1985-09-21 1987-03-26 Barmag Barmer Maschf Spinning process for chemical fibres
DE3701531A1 (en) * 1987-01-21 1988-08-04 Reifenhaeuser Masch METHOD AND SYSTEM FOR PRODUCING A SPINNED FLEECE

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2077181A (en) * 1980-05-05 1981-12-16 Kimberly Clark Co Forming non-woven webs
EP0046571B1 (en) * 1980-08-21 1984-05-23 Badische Corporation Chip - free staple fiber process
DE3533790A1 (en) * 1985-09-21 1987-03-26 Barmag Barmer Maschf Spinning process for chemical fibres
DE3701531A1 (en) * 1987-01-21 1988-08-04 Reifenhaeuser Masch METHOD AND SYSTEM FOR PRODUCING A SPINNED FLEECE

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2710661A1 (en) * 1993-09-30 1995-04-07 Polyfelt Gmbh Method and apparatus for making nonwoven spunbonded sheets
WO1998029583A1 (en) * 1996-12-30 1998-07-09 Kimberly-Clark Worldwide, Inc. Nonwoven process and apparatus
EP1340843A1 (en) * 2002-02-28 2003-09-03 Reifenhäuser GmbH & Co. Maschinenfabrik Apparatus for the continuous production of a spunbonded web
US6918750B2 (en) 2002-02-28 2005-07-19 Reifenhauser Gmbh & Co. Maschinenfabrik Arrangement for the continuous production of a filament nonwoven fibrous web
CN100366810C (en) * 2002-02-28 2008-02-06 赖芬豪泽机械工厂股份有限公司 Equipment for continuously producing non-woven fabric web
WO2008071658A2 (en) * 2006-12-12 2008-06-19 Oerlikon Textile Gmbh & Co. Kg Method and device for melt spinning and cooling synthetic filaments
WO2008071658A3 (en) * 2006-12-12 2008-11-13 Oerlikon Textile Gmbh & Co Kg Method and device for melt spinning and cooling synthetic filaments

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