EP1431435B1 - Apparatus for depositing and transporting a nonwoven web of synthetic filaments - Google Patents

Apparatus for depositing and transporting a nonwoven web of synthetic filaments Download PDF

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Publication number
EP1431435B1
EP1431435B1 EP20020028455 EP02028455A EP1431435B1 EP 1431435 B1 EP1431435 B1 EP 1431435B1 EP 20020028455 EP20020028455 EP 20020028455 EP 02028455 A EP02028455 A EP 02028455A EP 1431435 B1 EP1431435 B1 EP 1431435B1
Authority
EP
European Patent Office
Prior art keywords
roller
fluid medium
nonwoven web
screen belt
length
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP20020028455
Other languages
German (de)
French (fr)
Other versions
EP1431435A1 (en
Inventor
Hans-Georg Geus
Detlef Frey
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 DE50201372T priority Critical patent/DE50201372D1/en
Priority to EP20020028455 priority patent/EP1431435B1/en
Priority to AT02028455T priority patent/ATE280256T1/en
Priority to TR200401841T priority patent/TR200401841T3/xx
Priority to DK02028455T priority patent/DK1431435T3/en
Priority to CNB031082092A priority patent/CN1315709C/en
Priority to US10/684,257 priority patent/US7168473B2/en
Priority to MYPI20034302A priority patent/MY136779A/en
Priority to MXPA03011414A priority patent/MXPA03011414A/en
Priority to KR1020030091766A priority patent/KR100572161B1/en
Priority to JP2003422644A priority patent/JP4427313B2/en
Publication of EP1431435A1 publication Critical patent/EP1431435A1/en
Application granted granted Critical
Publication of EP1431435B1 publication Critical patent/EP1431435B1/en
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
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/02—Non-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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00—Advancing webs
    • B65H20/10—Advancing webs by a feed band against which web is held by fluid pressure, e.g. suction or air blast
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/08—Melt spinning methods
    • D01D5/098—Melt spinning methods with simultaneous stretching
    • D01D5/0985—Melt spinning methods with simultaneous stretching by means of a flowing gas (e.g. melt-blowing)
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/10—Scrim [e.g., open net or mesh, gauze, loose or open weave or knit, etc.]
    • Y10T442/102—Woven scrim
    • Y10T442/133—Inorganic fiber-containing scrim
    • Y10T442/143—Including a nonwoven fabric which is not a scrim
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/10—Scrim [e.g., open net or mesh, gauze, loose or open weave or knit, etc.]
    • Y10T442/184—Nonwoven scrim

Definitions

  • the invention relates to a device for storage and Promotion of a nonwoven web made of threads, especially from Plastic threads, with an endless revolving over rollers guided filing belt on which the plastic threads to Nonwoven web are deposited.
  • - Thread means in the context of In general, fibers or filaments with which Nonwoven webs can be formed.
  • the invention relates to the storage and promotion of a Nonwoven web made of plastic threads.
  • Plastic threads means in Within the scope of the invention filaments on the one hand, which as theoretically endless threads or filaments formed are.
  • Plastic threads basically mean shorter ones Fibers from which a nonwoven web can be made.
  • the nonwoven web or Unconsolidated nonwoven web is from the deposit screen belt Subsequent devices handed over or from the deposit screen belt deducted. As a rule, this transfer takes place at an in Direction of transport of the non-woven web arranged deflection roller, around which the deposit screen belt is guided.
  • devices for example unconsolidated nonwoven web in the area of the deflecting roller to one Hand over calenders or apply longitudinal forces deducted from the filing belt. With these known However, devices work when transferring to the Calender gap disadvantageously high forces on the nonwoven web. Especially with increasing plant speed and falling basis weights are the forces to subtract the Nonwoven web partially too high for the nonwoven web and it result in quality impairments or damage the nonwoven web.
  • the invention is the technical problem based on a device of the type mentioned specify a reliable and reliable Transfer of the nonwoven web to a subsequent device without disadvantageously high force is possible and with the the disadvantages described above are avoided can.
  • the invention teaches a device for depositing and conveying a nonwoven web made of plastic threads, with an endless rotating deposit screen belt, over which the plastic threads are deposited to form the nonwoven web, wherein a first roller is arranged below the deposit screen belt receiving the nonwoven web and wherein the first roller has outlet openings distributed over its roller jacket for a fluid medium emerging from the interior of the roller, which fluid medium passes through the deposit screen belt and acts on the nonwoven web lying on the deposit screen belt from below.
  • plastic threads there may be one Embodiment of the invention to theoretically endless Trade filaments.
  • plastic threads in the form of shorter fibers.
  • Storage area of the plastic threads or the nonwoven web one Suction device with suction shaft below the deposit screen belt located. This suction device sucks expediently process air through the formed Fleece web and the deposit screen belt and thereby the Nonwoven web functionally reliable on the moving Filing belt fixed. It goes without saying that that Storage sieve belt permeable to air or for fluid media is.
  • That the nonwoven web on the first roller from below with the fluid medium is applied means in the context of Invention that the fluid medium, preferably air, of flows against the nonwoven web below.
  • the invention lies insofar as the knowledge that this Applying the fluid to the holding forces between the deposit screen belt and the fleece belt can be reduced can be used for a simple and reliable Handover of the nonwoven web to a subsequent facility.
  • the first roller as Deflection roller is formed. With the deflection roller it will Filing belt deflected from its direction of movement. It expediently becomes horizontal at first moving and carrying the nonwoven web by means of the Deflection roller deflected downwards. It is also in Framework of the invention that behind the first roller, preferably deflection roller, one on the deposit screen belt subsequent conveyor and / or treatment facility for the nonwoven web is arranged and that the nonwoven web from the Filing belt to the conveyor and / or treatment facility is handed over. The first roller with the Air outlet openings is therefore in the transfer area Nonwoven web arranged.
  • the nonwoven web is expediently on the first roller, or when leaving the first roller by exposure to the fluid medium before Handover (slightly) raised. That way you can According to the invention, the holding forces between the deposit screen belt and Nonwoven web can be reduced. It becomes one Boundary layer made of the fluid medium between the nonwoven web and the filing belt. The for the handover or forces required to detach the nonwoven web thereby significantly reduced.
  • the nonwoven web can be used by the Deposit screen belt to a downstream conveyor, For example, hand over an endless conveyor belt become. It is also within the scope of the invention that the Nonwoven web from the deposit screen belt to a treatment facility is handed over for the nonwoven web. After a Embodiment of the invention is the deposit screen belt Calender downstream and the nonwoven web is in the Pass calender gap. - It expediently acts the fluid medium with which the nonwoven web is acted upon by a gas, and preferably by Air.
  • the roll shell of the first roller preferably the deflection roller, perforated is trained.
  • Perforated means that in that Roller shell a variety of over the roller shell distributed outlet openings, expediently small Outlet openings are provided.
  • the roller shell is that is, as it were, permeable.
  • the first roller or deflection roller at least one Suction opening or inlet opening for the fluid medium intended.
  • the Invention has the first roller at least one hollow Axle journal through which hollow journal the fluid Medium, preferably air, can be sucked in, so that fluid medium from the inside of the roller in the radial direction escapes from the outlet openings.
  • the hollow journal is on at least one cylinder base cylindrical first roller provided.
  • the fluid medium only escapes under Influence of centrifugal forces from inside the roller radial direction from the outlet openings.
  • Suction device or an upstream fan be provided to the desired flow of the fluid To generate or support medium.
  • At least one guide device for the fluid medium with the provision arranged inside the roller, that the flow of the fluid medium in the direction of that on the Filing belt guided or guided on the nonwoven web lying on top becomes.
  • It is a guide device in particular around a guide surface, preferably around a Baffle.
  • an inner stator is provided, which expediently consists of a arranged parallel to the roll shell inside the roll Guide coat exists.
  • the inner stator or guide jacket preferably extends over at least 50%, preferably over at least 75% of the circumference of the roller or Roll shell.
  • At least one Feeding device for feeding the fluid medium or the air into the inside of the roller.
  • the Feed device may be a suction device and / or act as a blower device. It is also within the scope of the invention that devices for Conditioning the air in relation to the air humidity are provided.
  • the invention is based on the finding that with a device according to the invention a very simple and reliable transfer of the nonwoven web from the Deposit screen belt to a subsequent device, for example a calender, is possible.
  • Measures become the forces required to pull off the nonwoven web are significantly reduced.
  • the nonwoven web is in contrast to the prior art no impairments of the nonwoven web quality or none Damage to the nonwoven web.
  • the nonwoven web can thus in consistent quality to the subsequent device be handed over.
  • the Measures according to the invention are inexpensive and the Device according to the invention relatively simple and little can be trained complex.
  • Fig. 1 shows a device for storage and promotion a nonwoven web 1 made of plastic threads 2.
  • the plastic threads 2 do not emerge in the molten state illustrated suitable nozzle openings and are ultimately on the surface of the deposit screen belt 3 Fleece web 1 filed.
  • the filing belt 3 is concerned in the exemplary embodiment an endlessly revolving Rolls 4, 5 guided storage belt 3.
  • Fig. 1 is on right end of the horizontal which receives the nonwoven web 1 Section of the depositing belt 3 a first roller 4th provided that in the exemplary embodiment as a deflection roller is trained. So here is the endlessly circulating Filing belt 3 from its horizontal conveying position for the Fleece web 1 deflected downward around the first roller 4.
  • the first roller 4 has its Roller jacket 6 distributed outlet openings 7.
  • the Outlet openings 7 are for one from the inside of the roll escaping fluid medium, expediently air, intended.
  • the fluid medium or the air passes through the Filing belt 3 and applied to the Deposit screen belt 3 of nonwoven web 1 lying on from below.
  • the fluid medium therefore flows against the nonwoven web 1 from below.
  • the holding forces between the Filing belt 3 and the nonwoven web 1 reduced and therefore can be a simple and reliable handover of the Fleece web 1 take place.
  • the exemplary embodiment is the roll shell 6 of the first roll 4 perforated.
  • About the circumference of the roll shell 6 is therefore a multiplicity of small outlet openings 7 distributed through which the fluid medium penetrate to the outside can and can act on the nonwoven web 1.
  • the first roller 4 expediently hollow Axle pin 8 through which the fluid medium can be sucked in so that it is exposed to centrifugal forces from the inside of the roller in the radial direction from the Outlet openings 7 can escape. This was shown in Fig. 2 indicated by corresponding arrows.
  • the guide jacket 9 is expediently designed as a baffle, which in 3 parallel to the roll jacket 6th the first roller 4 is arranged and over 75% of The circumference of the roll shell 6 extends. 3 was indicated by arrows that the fluid medium or Air with the help of the guide jacket 9 very specifically against the Underside of the nonwoven web 1 is steered.
  • Behind the first roller 4 designed as a deflection roller are not connected to the deposit screen belt 3 shown conveying and / or treatment facilities for the nonwoven web 1 is provided.
  • a Calender arranged.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Nonwoven Fabrics (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

A process accumulates a feed supply of non-woven man-made fibers and transports these on a belt over a release-point drum. The drum (4) esp. has numerous perforations (7) in the mantle linked to an interior supply of pressurised air. Also claimed is a commensurate assembly in which air is pumped into the drum via a hollow axle (8) and discharged through the perforations (7) and conveyer belt.

Description

Die Erfindung betrifft eine Vorrichtung für die Ablage und Förderung einer Vliesbahn aus Fäden, insbesondere aus Kunststofffäden, mit einem endlos umlaufenden über Walzen geführten Ablagesiebband, auf dem die Kunststofffäden zur Vliesbahn abgelegt werden. - Fäden meint im Rahmen der Erfindung ganz allgemein Fasern oder Filamente, mit denen Vliesbahnen gebildet werden können. Sehr bevorzugt bezieht sich die Erfindung auf die Ablage und Förderung einer Vliesbahn aus Kunststofffäden. Kunststofffäden meint im Rahmen der Erfindung einerseits Filamente, die als theoretisch endlose Fäden bzw. Endlosfilamente ausgebildet sind. Kunststofffäden meint grundsätzlich aber auch kürzere Fasern, aus denen eine Vliesbahn hergestellt werden kann.The invention relates to a device for storage and Promotion of a nonwoven web made of threads, especially from Plastic threads, with an endless revolving over rollers guided filing belt on which the plastic threads to Nonwoven web are deposited. - Thread means in the context of In general, fibers or filaments with which Nonwoven webs can be formed. Very preferably relates the invention relates to the storage and promotion of a Nonwoven web made of plastic threads. Plastic threads means in Within the scope of the invention filaments on the one hand, which as theoretically endless threads or filaments formed are. Plastic threads basically mean shorter ones Fibers from which a nonwoven web can be made.

Die auf dem Ablagesiebband abgelegte Vliesbahn bzw. unverfestigte Vliesbahn wird von dem Ablagesiebband an Folgeeinrichtungen übergeben bzw. von dem Ablagesiebband abgezogen. In der Regel erfolgt diese Übergabe an einer in Transportrichtung der Vliesbahn angeordneten Umlenkwalze, um die das Ablagesiebband geführt ist. - Bei aus der Praxis bekannten Vorrichtungen wird beispielsweise die unverfestigte Vliesbahn im Bereich der Umlenkwalze an einen Kalander übergeben bzw. unter Aufbringung von Längskräften von dem Ablagesiebband abgezogen. Bei diesen bekannten Vorrichtungen wirken aber bei der Übergabe in den Kalanderspalt nachteilhaft hohe Kräfte auf die Vliesbahn. Insbesondere bei steigender Anlagengeschwindigkeit und sinkenden Flächengewichten sind die Kräfte zum Abziehen der Vliesbahn teilweise zu hoch für die Vliesbahn und es resultieren Qualitätsbeeinträchtigungen bzw. Beschädigungen der Vliesbahn. So kann eine erhebliche Querkontraktion (Breitenverlust) oder auch eine schlechte Qualität der Vliesbahnränder die Folge sein. Im Extremfall sind Produktionsunterbrechungen erforderlich, wenn nämlich die Vliesbahn mit dem Siebband weiter umläuft, weil eine funktionssichere Übergabe nicht möglich war.The nonwoven web or Unconsolidated nonwoven web is from the deposit screen belt Subsequent devices handed over or from the deposit screen belt deducted. As a rule, this transfer takes place at an in Direction of transport of the non-woven web arranged deflection roller, around which the deposit screen belt is guided. - In practice known devices, for example unconsolidated nonwoven web in the area of the deflecting roller to one Hand over calenders or apply longitudinal forces deducted from the filing belt. With these known However, devices work when transferring to the Calender gap disadvantageously high forces on the nonwoven web. Especially with increasing plant speed and falling basis weights are the forces to subtract the Nonwoven web partially too high for the nonwoven web and it result in quality impairments or damage the nonwoven web. This can result in a significant cross contraction (Loss of width) or a poor quality of the Fleece edges will be the result. In extreme cases Production interruptions are required if namely Nonwoven web with the belt continues to circulate because of a reliable handover was not possible.

Demgegenüber liegt der Erfindung das technische Problem zugrunde, eine Vorrichtung der eingangs genannten Art anzugeben, bei der eine zuverlässige und funktionssichere Übergabe der Vliesbahn an eine Folgeeinrichtung ohne nachteilhaft hohe Krafteinwirkung möglich ist und mit der die vorstehend beschriebenen Nachteile vermieden werden können.In contrast, the invention is the technical problem based on a device of the type mentioned specify a reliable and reliable Transfer of the nonwoven web to a subsequent device without disadvantageously high force is possible and with the the disadvantages described above are avoided can.

Zur Lösung dieses technischen Problems lehrt die Erfindung eine Vorrichtung für die Ablage und Förderung einer Vliesbahn aus Kunststofffäden, mit einem endlos umlaufenden über Walzen geführten Ablagesiebband, auf dem die Kunststofffäden zur Vliesbahn abgelegt werden,
wobei eine erste Walze unterhalb des die Vliesbahn aufnehmenden Ablagesiebbandes angeordnet ist
und wobei die erste Walze über ihren Walzenmantel verteilte Austrittsöffnungen für ein aus dem Walzeninneren austretendes fluides Medium aufweist, welches fluide Medium durch das Ablagesiebband tritt und die auf dem Ablagesiebband aufliegende Vliesbahn von unten beaufschlagt. To solve this technical problem, the invention teaches a device for depositing and conveying a nonwoven web made of plastic threads, with an endless rotating deposit screen belt, over which the plastic threads are deposited to form the nonwoven web,
wherein a first roller is arranged below the deposit screen belt receiving the nonwoven web
and wherein the first roller has outlet openings distributed over its roller jacket for a fluid medium emerging from the interior of the roller, which fluid medium passes through the deposit screen belt and acts on the nonwoven web lying on the deposit screen belt from below.

Bei den Kunststofffäden kann es sich nach einer Ausführungsform der Erfindung um theoretisch endlose Filamente handeln. Nach einer anderen Ausführungsform sind die Kunststofffäden in Form kürzerer Fasern ausgebildet.In the case of plastic threads, there may be one Embodiment of the invention to theoretically endless Trade filaments. According to another embodiment the plastic threads in the form of shorter fibers.

Es liegt im Rahmen der Erfindung, dass sich im Ablagebereich der Kunststofffäden bzw. der Vliesbahn eine Saugeinrichtung mit Saugschacht unterhalb des Ablagesiebbandes befindet. Diese Saugeinrichtung saugt zweckmäßigerweise Prozessluft durch die sich bildende Vliesbahn und das Ablagesiebband und dadurch wird die Vliesbahn funktionssicher auf dem sich weiterbewegenden Ablagesiebband fixiert. Es versteht sich, dass das Ablagesiebband durchlässig für Luft bzw. für fluide Medien ist.It is within the scope of the invention that Storage area of the plastic threads or the nonwoven web one Suction device with suction shaft below the deposit screen belt located. This suction device sucks expediently process air through the formed Fleece web and the deposit screen belt and thereby the Nonwoven web functionally reliable on the moving Filing belt fixed. It goes without saying that that Storage sieve belt permeable to air or for fluid media is.

Dass die Vliesbahn an der ersten Walze von unten mit dem fluiden Medium beaufschlagt wird, meint im Rahmen der Erfindung, dass das fluide Medium, vorzugsweise Luft, von unten gegen die Vliesbahn strömt. Der Erfindung liegt insoweit die Erkenntnis zugrunde, dass durch diese Beaufschlagung mit dem fluiden Medium die Haltekräfte zwischen Ablagesiebband und Vliesband reduziert werden können zwecks einer einfachen und funktionssicheren Übergabe der Vliesbahn an eine Folgeeinrichtung.That the nonwoven web on the first roller from below with the fluid medium is applied, means in the context of Invention that the fluid medium, preferably air, of flows against the nonwoven web below. The invention lies insofar as the knowledge that this Applying the fluid to the holding forces between the deposit screen belt and the fleece belt can be reduced can be used for a simple and reliable Handover of the nonwoven web to a subsequent facility.

Es liegt im Rahmen der Erfindung, dass die erste Walze als Umlenkwalze ausgebildet ist. Mit der Umlenkwalze wird das Ablagesiebband aus seiner Bewegungsrichtung umgelenkt. Zweckmäßigerweise wird das zunächst sich horizontal bewegende und die Vliesbahn tragende Siebband mittels der Umlenkwalze nach unten umgelenkt. Es liegt fernerhin im Rahmen der Erfindung, dass hinter der ersten Walze, vorzugsweise Umlenkwalze, eine an das Ablagesiebband anschließende Förder- und/oder Behandlungseinrichtung für die Vliesbahn angeordnet ist und dass die Vliesbahn von dem Ablagesiebband an die Förder- und/oder Behandlungseinrichtung übergeben wird. Die erste Walze mit den Luftaustrittsöffnungen ist also im Übergabebereich der Vliesbahn angeordnet. Zweckmäßigerweise wird die Vliesbahn auf der ersten Walze, oder beim Verlassen der ersten Walze durch Beaufschlagung mit dem fluiden Medium vor der Übergabe (leicht) angehoben. Auf diese Weise können erfindungsgemäß die Haltekräfte zwischen Ablagesiebband und Vliesbahn reduziert werden. Es wird gleichsam eine Grenzschicht aus dem fluiden Medium zwischen der Vliesbahn und dem Ablagesiebband aufgebaut. Die für die Übergabe bzw. für das Ablösen der Vliesbahn erforderlichen Kräfte werden dadurch deutlich vermindert. - Die Vliesbahn kann von dem Ablagesiebband an eine nachgeschaltete Fördereinrichtung, beispielsweise ein endlos umlaufendes Förderband übergeben werden. Es liegt auch im Rahmen der Erfindung, dass die Vliesbahn von dem Ablagesiebband an eine Behandlungseinrichtung für die Vliesbahn übergeben wird. Nach einer Ausführungsform der Erfindung ist dem Ablagesiebband ein Kalander nachgeschaltet und die Vliesbahn wird in den Kalanderspalt übergeben. - Zweckmäßigerweise handelt es sich bei dem fluiden Medium, mit dem die Vliesbahn beaufschlagt wird um ein Gas, und zwar vorzugsweise um Luft. It is within the scope of the invention that the first roller as Deflection roller is formed. With the deflection roller it will Filing belt deflected from its direction of movement. It expediently becomes horizontal at first moving and carrying the nonwoven web by means of the Deflection roller deflected downwards. It is also in Framework of the invention that behind the first roller, preferably deflection roller, one on the deposit screen belt subsequent conveyor and / or treatment facility for the nonwoven web is arranged and that the nonwoven web from the Filing belt to the conveyor and / or treatment facility is handed over. The first roller with the Air outlet openings is therefore in the transfer area Nonwoven web arranged. The nonwoven web is expediently on the first roller, or when leaving the first roller by exposure to the fluid medium before Handover (slightly) raised. That way you can According to the invention, the holding forces between the deposit screen belt and Nonwoven web can be reduced. It becomes one Boundary layer made of the fluid medium between the nonwoven web and the filing belt. The for the handover or forces required to detach the nonwoven web thereby significantly reduced. - The nonwoven web can be used by the Deposit screen belt to a downstream conveyor, For example, hand over an endless conveyor belt become. It is also within the scope of the invention that the Nonwoven web from the deposit screen belt to a treatment facility is handed over for the nonwoven web. After a Embodiment of the invention is the deposit screen belt Calender downstream and the nonwoven web is in the Pass calender gap. - It expediently acts the fluid medium with which the nonwoven web is acted upon by a gas, and preferably by Air.

Es liegt im Rahmen der Erfindung, dass der Walzenmantel der ersten Walze, vorzugsweise der Umlenkwalze, perforiert ausgebildet ist. Perforiert meint dabei, dass in dem Walzenmantel eine Vielzahl von über den Walzenmantel verteilten Austrittsöffnungen, zweckmäßigerweise kleinen Austrittsöffnungen, vorgesehen sind. Der Walzenmantel ist also gleichsam permeabel ausgeführt.It is within the scope of the invention that the roll shell of the first roller, preferably the deflection roller, perforated is trained. Perforated means that in that Roller shell a variety of over the roller shell distributed outlet openings, expediently small Outlet openings are provided. The roller shell is that is, as it were, permeable.

Zweckmäßigerweise ist in zumindest einer Zylindergrundfläche der ersten Walze bzw. Umlenkwalze, zumindest eine Ansaugöffnung oder Einlassöffnung für das fluide Medium vorgesehen. Nach sehr bevorzugter Ausführungsform der Erfindung weist die erste Walze zumindest einen hohlen Achszapfen auf, durch welchen hohlen Achszapfen das fluide Medium, vorzugsweise Luft, ansaugbar ist, so dass das fluide Medium aus dem Walzeninneren in radialer Richtung aus den Austrittsöffnungen entweicht. Der hohle Achszapfen ist an zumindest einer Zylindergrundfläche der zylinderförmigen ersten Walze vorgesehen. Nach bevorzugter Ausführungsform entweicht das fluide Medium lediglich unter Einwirkung der Zentrifugalkräfte aus dem Walzeninneren in radialer Richtung aus den Austrittsöffnungen. Nach einer anderen Ausführungsform der Erfindung kann auch eine Ansaugeinrichtung oder ein vorgeschaltetes Gebläse vorgesehen sein, um den gewünschten Strom des fluiden Mediums zu erzeugen bzw. zu unterstützen.It is expedient in at least one cylinder base the first roller or deflection roller, at least one Suction opening or inlet opening for the fluid medium intended. According to a very preferred embodiment of the Invention has the first roller at least one hollow Axle journal through which hollow journal the fluid Medium, preferably air, can be sucked in, so that fluid medium from the inside of the roller in the radial direction escapes from the outlet openings. The hollow journal is on at least one cylinder base cylindrical first roller provided. According to preferred Embodiment, the fluid medium only escapes under Influence of centrifugal forces from inside the roller radial direction from the outlet openings. After a another embodiment of the invention can also Suction device or an upstream fan be provided to the desired flow of the fluid To generate or support medium.

Vorzugsweise ist zumindest eine Leitvorrichtung für das fluide Medium mit der Maßgabe im Walzeninneren angeordnet, dass der Strom des fluiden Mediums in Richtung der auf dem Ablagesiebband aufliegenden Vliesbahn geleitet bzw. gelenkt wird. Bei einer Leitvorrichtung handelt es sich insbesondere um eine Leitfläche, vorzugsweise um ein Leitblech. Nach einer Ausführungsform ist im Walzeninneren ein Innenstator vorgesehen, der zweckmäßigerweise aus einem parallel zum Walzenmantel im Walzeninneren angeordneten Leitmantel besteht. Der Innenstator bzw. Leitmantel erstreckt sich vorzugsweise über zumindest 50 %, bevorzugt über zumindest 75 %, des Umfangs der Walze bzw. des Walzenmantels.Preferably at least one guide device for the fluid medium with the provision arranged inside the roller, that the flow of the fluid medium in the direction of that on the Filing belt guided or guided on the nonwoven web lying on top becomes. It is a guide device in particular around a guide surface, preferably around a Baffle. According to one embodiment is inside the roller an inner stator is provided, which expediently consists of a arranged parallel to the roll shell inside the roll Guide coat exists. The inner stator or guide jacket preferably extends over at least 50%, preferably over at least 75% of the circumference of the roller or Roll shell.

Nach einer Ausführungsform der Erfindung ist zumindest eine Zuführungsvorrichtung für die Zuführung des fluiden Mediums bzw. der Luft in das Walzeninnere vorgesehen. Bei der Zuführungsvorrichtung mag es sich um eine Ansaugvorrichtung und/oder um eine Gebläseeinrichtung handeln. Es liegt auch im Rahmen der Erfindung, dass Einrichtungen zur Konditionierung der Luft bezüglich der Luftfeuchtigkeit vorgesehen sind.According to one embodiment of the invention, at least one Feeding device for feeding the fluid medium or the air into the inside of the roller. In the Feed device may be a suction device and / or act as a blower device. It is also within the scope of the invention that devices for Conditioning the air in relation to the air humidity are provided.

Der Erfindung liegt die Erkenntnis zugrunde, dass mit einer erfindungsgemäßen Vorrichtung eine sehr einfache und funktionssichere Übergabe der Vliesbahn von dem Ablagesiebband an eine Folgeeinrichtung, beispielsweise an einen Kalander, möglich ist. Durch die erfindungsgemäßen Maßnahmen werden die Kräfte, die zum Abziehen der Vliesbahn erforderlich sind, erheblich reduziert. Bei der Übergabe der Vliesbahn treten im Gegensatz zum Stand der Technik keine Beeinträchtigungen der Vliesbahnqualität bzw. keine Beschädigungen der Vliesbahn auf. Die Vliesbahn kann somit in gleichbleibender Qualität an die Folgeeinrichtung übergeben werden. Hervorzuheben ist weiterhin, dass die erfindungsgemäßen Maßnahmen wenig aufwendig sind und die erfindungsgemäße Vorrichtung relativ einfach und wenig aufwendig ausgebildet werden kann.The invention is based on the finding that with a device according to the invention a very simple and reliable transfer of the nonwoven web from the Deposit screen belt to a subsequent device, for example a calender, is possible. By the invention Measures become the forces required to pull off the nonwoven web are significantly reduced. At the handover the nonwoven web is in contrast to the prior art no impairments of the nonwoven web quality or none Damage to the nonwoven web. The nonwoven web can thus in consistent quality to the subsequent device be handed over. It should also be emphasized that the Measures according to the invention are inexpensive and the Device according to the invention relatively simple and little can be trained complex.

Nachfolgend wird die Erfindung anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung näher erläutert. Es zeigen in schematischer Darstellung:

Fig. 1
eine Seitenansicht einer erfindungsgemäßen Vorrichtung,
Fig. 2
einen Schnitt durch die Umlenkwalze des Gegenstandes nach Fig. 1 und
Fig. 3
einen vergrößerten Ausschnitt aus der Fig. 1, der eine zweite Ausführungsform zeigt.
The invention is explained in more detail below on the basis of a drawing which represents only one exemplary embodiment. In a schematic representation:
Fig. 1
a side view of a device according to the invention,
Fig. 2
a section through the deflecting roller of the object of FIG. 1 and
Fig. 3
an enlarged section of FIG. 1, which shows a second embodiment.

Fig. 1 zeigt eine Vorrichtung für die Ablage und Förderung einer Vliesbahn 1 aus Kunststofffäden 2. Die Kunststofffäden 2 treten in schmelzflüssigem Zustand aus nicht dargestellten geeigneten Düsenöffnungen aus und werden letztendlich auf der Oberfläche des Ablagesiebbandes 3 zur Vliesbahn 1 abgelegt. Bei dem Ablagesiebband 3 handelt es sich im Ausführungsbeispiel um ein endlos umlaufendes über Walzen 4, 5 geführtes Ablagesiebband 3. In Fig. 1 ist am rechten Ende des die Vliesbahn 1 aufnehmenden horizontalen Abschnittes des Ablagesiebbandes 3 eine erste Walze 4 vorgesehen, die im Ausführungsbeispiel als Umlenkwalze ausgebildet ist. Hier wird also das endlos umlaufende Ablagesiebband 3 aus seiner horizontalen Förderlage für die Vliesbahn 1 um die erste Walze 4 nach unten umgelenkt. Fig. 1 shows a device for storage and promotion a nonwoven web 1 made of plastic threads 2. The plastic threads 2 do not emerge in the molten state illustrated suitable nozzle openings and are ultimately on the surface of the deposit screen belt 3 Fleece web 1 filed. The filing belt 3 is concerned in the exemplary embodiment an endlessly revolving Rolls 4, 5 guided storage belt 3. In Fig. 1 is on right end of the horizontal which receives the nonwoven web 1 Section of the depositing belt 3 a first roller 4th provided that in the exemplary embodiment as a deflection roller is trained. So here is the endlessly circulating Filing belt 3 from its horizontal conveying position for the Fleece web 1 deflected downward around the first roller 4.

Erfindungsgemäß weist die erste Walze 4 über ihren Walzenmantel 6 verteilte Austrittsöffnungen 7 auf. Die Austrittsöffnungen 7 sind für ein aus dem Walzeninneren austretendes fluides Medium, zweckmäßigerweise Luft, vorgesehen. Das fluide Medium bzw. die Luft tritt durch das Ablagesiebband 3 und beaufschlagt die auf dem Ablagesiebband 3 aufliegende Vliesbahn 1 von unten. Das fluide Medium strömt also von unten gegen die Vliesbahn 1. Dadurch werden erfindungsgemäß die Haltekräfte zwischen dem Ablagesiebband 3 und der Vliesbahn 1 reduziert und deshalb kann eine einfache und funktionssichere Übergabe der Vliesbahn 1 stattfinden. In den Figuren wurde die Strömungsrichtung des fluiden Mediums bzw. der Luft durch Pfeile verdeutlicht.According to the invention, the first roller 4 has its Roller jacket 6 distributed outlet openings 7. The Outlet openings 7 are for one from the inside of the roll escaping fluid medium, expediently air, intended. The fluid medium or the air passes through the Filing belt 3 and applied to the Deposit screen belt 3 of nonwoven web 1 lying on from below. The fluid medium therefore flows against the nonwoven web 1 from below. As a result, the holding forces between the Filing belt 3 and the nonwoven web 1 reduced and therefore can be a simple and reliable handover of the Fleece web 1 take place. In the figures, the Flow direction of the fluid medium or the air through Arrows made clear.

Nach sehr bevorzugter Ausführungsform und im Ausführungsbeispiel ist der Walzenmantel 6 der ersten Walze 4 perforiert ausgebildet. Über den Umfang des Walzenmantels 6 ist also eine Vielzahl von kleinen Austrittsöffnungen 7 verteilt, durch die das fluide Medium nach außen dringen kann und die Vliesbahn 1 beaufschlagen kann. In Fig. 2 ist erkennbar, dass die erste Walze 4 zweckmäßigerweise hohle Achszapfen 8 aufweist, durch die das fluide Medium ansaugbar ist, so dass es unter Einwirkung von Zentrifugalkräften aus dem Walzeninneren in radialer Richtung aus den Austrittsöffnungen 7 entweichen kann. Das wurde in Fig. 2 durch entsprechende Pfeile verdeutlicht.After a very preferred embodiment and in The exemplary embodiment is the roll shell 6 of the first roll 4 perforated. About the circumference of the roll shell 6 is therefore a multiplicity of small outlet openings 7 distributed through which the fluid medium penetrate to the outside can and can act on the nonwoven web 1. 2 is recognizable that the first roller 4 expediently hollow Axle pin 8 through which the fluid medium can be sucked in so that it is exposed to centrifugal forces from the inside of the roller in the radial direction from the Outlet openings 7 can escape. This was shown in Fig. 2 indicated by corresponding arrows.

In Fig. 3 ist eine im Walzeninneren als Leitmantel 9 ausgebildete Leitvorrichtung für das fluide Medium mit der Maßgabe angeordnet, dass der Strom des fluiden Mediums in Richtung der auf dem Ablagesiebband 3 aufliegenden Vliesbahn 1 geleitet bzw. gelenkt wird. Der Leitmantel 9 ist zweckmäßigerweise als Leitblech ausgebildet, das im Ausführungsbeispiel nach Fig. 3 parallel zum Walzenmantel 6 der ersten Walze 4 angeordnet ist und sich über 75 % des Umfangs des Walzenmantels 6 erstreckt. In Fig. 3 wurde durch Pfeile verdeutlicht, dass das fluide Medium bzw. die Luft mit Hilfe des Leitmantels 9 sehr gezielt gegen die Unterseite der Vliesbahn 1 gelenkt wird.3 is a guide jacket 9 inside the roll trained guide device for the fluid medium with the Provided that the flow of the fluid medium in Direction of those lying on the deposit screen belt 3 Fleece web 1 is directed or steered. The guide jacket 9 is expediently designed as a baffle, which in 3 parallel to the roll jacket 6th the first roller 4 is arranged and over 75% of The circumference of the roll shell 6 extends. 3 was indicated by arrows that the fluid medium or Air with the help of the guide jacket 9 very specifically against the Underside of the nonwoven web 1 is steered.

Hinter der als Umlenkwalze ausgebildeten ersten Walze 4 sind an das Ablagesiebband 3 anschließende nicht dargestellte Förder- und/oder Behandlungseinrichtungen für die Vliesbahn 1 vorgesehen. Hier ist beispielsweise ein Kalander angeordnet.Behind the first roller 4 designed as a deflection roller are not connected to the deposit screen belt 3 shown conveying and / or treatment facilities for the nonwoven web 1 is provided. For example, here is a Calender arranged.

Claims (8)

  1. An apparatus for depositing and conveying a length of fibrous web (1) made of threads, particularly made of plastics threads (2), comprising a continuously circulating deposition screen belt (3) which is guided over rollers (4, 5) and on which the plastics threads (2) are deposited to form the length of fibrous web (1),
    wherein a first roller (4) is disposed underneath the deposition screen belt (3) which receives the length of fibrous web (1),
    and wherein the first roller (4) comprises outlet openings (7), which are distributed over its roller surface (6), for a fluid medium which emerges from the interior of the roller, which fluid medium passes through the deposition screen belt (3) and acts from below on the length of fibrous web (1) resting on the deposition screen belt (3).
  2. An apparatus according to claim 1, wherein the first roller (4) is formed as a deflection roller.
  3. An apparatus according to either one of claims 1 or 2, wherein a conveying and/or handling device for the length of fibrous web (1) adjoins the deposition screen belt (3) and is disposed behind the first roller (4), and wherein the length of fibrous web (1) can be transferred from the deposition screen belt (3) to the conveying and/or handling device.
  4. An apparatus according to any one of claims 1 to 3, wherein the fluid medium is a gas, preferably air.
  5. An apparatus according to any one of claims 1 to 4, wherein the roller surface (6) of the first roller (4) is of perforated construction.
  6. An apparatus according to any one of claims 1 to 5, wherein the first roller (4) comprises at least one hollow axle journal (8), through which hollow axle journal (8) the fluid medium can be drawn in by suction so that from the interior of the roller it emerges radially from the outlet openings (7).
  7. An apparatus according to any one of claims 1 to 6, wherein at least one guiding apparatus is provided for the fluid medium, with the proviso that the flow of fluid medium is guided towards the length of fibrous web (1) resting on the deposition screen belt (3).
  8. An apparatus according to any one of claims 1 to 7, wherein at least one feeder apparatus is provided for feeding the fluid medium into the interior of the roller.
EP20020028455 2002-12-19 2002-12-19 Apparatus for depositing and transporting a nonwoven web of synthetic filaments Expired - Lifetime EP1431435B1 (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
DE50201372T DE50201372D1 (en) 2002-12-19 2002-12-19 Device for depositing and conveying a nonwoven web made of plastic threads
EP20020028455 EP1431435B1 (en) 2002-12-19 2002-12-19 Apparatus for depositing and transporting a nonwoven web of synthetic filaments
AT02028455T ATE280256T1 (en) 2002-12-19 2002-12-19 DEVICE FOR DEPOSITING AND CONVEYING A NON-WOVEN WEB MADE OF PLASTIC THREADS
TR200401841T TR200401841T3 (en) 2002-12-19 2002-12-19
DK02028455T DK1431435T3 (en) 2002-12-19 2002-12-19 Device for depositing and transporting a nonwoven web of plastic wires
CNB031082092A CN1315709C (en) 2002-12-19 2003-03-25 Apparatus for stacking and delivering non-woven fabric fiber-net
US10/684,257 US7168473B2 (en) 2002-12-19 2003-10-10 Apparatus for making a nonwoven synthetic-resin web or fleece
MYPI20034302A MY136779A (en) 2002-12-19 2003-11-11 Apparatus for making a nonwoven synthetic-resin web or fleece
MXPA03011414A MXPA03011414A (en) 2002-12-19 2003-12-10 Method of and apparatus for making a nonwoven web or fleece from synthetic resin strands.
KR1020030091766A KR100572161B1 (en) 2002-12-19 2003-12-16 Method and apparatus for making nonwoven web or fleece from synthetic resin strands
JP2003422644A JP4427313B2 (en) 2002-12-19 2003-12-19 Method and apparatus for producing nonwoven webs or fleeces from synthetic resin strands

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20020028455 EP1431435B1 (en) 2002-12-19 2002-12-19 Apparatus for depositing and transporting a nonwoven web of synthetic filaments

Publications (2)

Publication Number Publication Date
EP1431435A1 EP1431435A1 (en) 2004-06-23
EP1431435B1 true EP1431435B1 (en) 2004-10-20

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EP20020028455 Expired - Lifetime EP1431435B1 (en) 2002-12-19 2002-12-19 Apparatus for depositing and transporting a nonwoven web of synthetic filaments

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US (1) US7168473B2 (en)
EP (1) EP1431435B1 (en)
JP (1) JP4427313B2 (en)
KR (1) KR100572161B1 (en)
CN (1) CN1315709C (en)
AT (1) ATE280256T1 (en)
DE (1) DE50201372D1 (en)
DK (1) DK1431435T3 (en)
MX (1) MXPA03011414A (en)
MY (1) MY136779A (en)
TR (1) TR200401841T3 (en)

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DK2017206T3 (en) * 2007-06-29 2014-09-22 Reifenhäuser Gmbh & Co Kg Maschinenfabrik Apparatus for making a felt web
KR101219249B1 (en) * 2010-10-20 2013-01-07 도레이첨단소재 주식회사 Elastic non-woven fabric having a fitting property and a soft touch and manufacturing method thereof
CN102296425A (en) * 2011-08-09 2011-12-28 温州朝隆纺织机械有限公司 Equipment for continuously producing spunbonded/meltblown compound nonwoven fabric
WO2017023657A1 (en) 2015-07-31 2017-02-09 The Procter & Gamble Company Forming belt for shaped nonwoven
JP2018523556A (en) 2015-07-31 2018-08-23 ザ プロクター アンド ギャンブル カンパニー Absorbent article package using molded non-woven fabric
PL3239378T3 (en) * 2016-04-29 2019-07-31 Reifenhäuser GmbH & Co. KG Maschinenfabrik Device and method for the manufacture of material from continuous filaments

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DE3843655A1 (en) * 1988-12-23 1990-07-05 Rieter Ag Maschf METHOD FOR CLEANING A CARD TAPE
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DE4312419C2 (en) * 1993-04-16 1996-02-22 Reifenhaeuser Masch Plant for the production of a spunbonded nonwoven web from aerodynamically stretched plastic filaments
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DE10105843A1 (en) * 2001-01-16 2002-07-18 Fleissner Gerold Method and device for transporting a fleece between two rollers arranged at a distance from one another

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JP4427313B2 (en) 2010-03-03
US20040121673A1 (en) 2004-06-24
CN1315709C (en) 2007-05-16
JP2004197296A (en) 2004-07-15
MY136779A (en) 2008-11-28
TR200401841T3 (en) 2004-09-21
CN1508315A (en) 2004-06-30
KR100572161B1 (en) 2006-04-19
DK1431435T3 (en) 2005-02-28
KR20040054511A (en) 2004-06-25
US7168473B2 (en) 2007-01-30
DE50201372D1 (en) 2004-11-25
MXPA03011414A (en) 2005-04-19
EP1431435A1 (en) 2004-06-23
ATE280256T1 (en) 2004-11-15

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