EP3382082B1 - Vorrichtung zur herstellung von spinnvliesen aus endlosfilamenten - Google Patents

Vorrichtung zur herstellung von spinnvliesen aus endlosfilamenten Download PDF

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Publication number
EP3382082B1
EP3382082B1 EP17164368.7A EP17164368A EP3382082B1 EP 3382082 B1 EP3382082 B1 EP 3382082B1 EP 17164368 A EP17164368 A EP 17164368A EP 3382082 B1 EP3382082 B1 EP 3382082B1
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EP
European Patent Office
Prior art keywords
seal
gap
diffuser
seals
width
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.)
Active
Application number
EP17164368.7A
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German (de)
English (en)
French (fr)
Other versions
EP3382082A1 (de
Inventor
Detlef Frey
Martin Neuenhofer
Sebastian Sommer
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
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Application filed by Reifenhaeuser GmbH and Co KG Maschinenenfabrik filed Critical Reifenhaeuser GmbH and Co KG Maschinenenfabrik
Priority to ES17164368T priority Critical patent/ES2754605T3/es
Priority to PL17164368T priority patent/PL3382082T3/pl
Priority to SI201730110T priority patent/SI3382082T1/sl
Priority to DK17164368.7T priority patent/DK3382082T3/da
Priority to EP17164368.7A priority patent/EP3382082B1/de
Priority to JOP/2018/0031A priority patent/JO3482B1/ar
Priority to CA2996577A priority patent/CA2996577C/en
Priority to MYPI2018700959A priority patent/MY191528A/en
Priority to CONC2018/0002716A priority patent/CO2018002716A1/es
Priority to MX2018003228A priority patent/MX2018003228A/es
Priority to ARP180100619A priority patent/AR111333A1/es
Priority to ZA2018/01817A priority patent/ZA201801817B/en
Priority to KR1020180035025A priority patent/KR102213091B1/ko
Priority to SA118390478A priority patent/SA118390478B1/ar
Priority to RU2018111080A priority patent/RU2699875C9/ru
Priority to JP2018063808A priority patent/JP6863924B2/ja
Priority to BR102018006568-8A priority patent/BR102018006568B1/pt
Priority to US15/939,703 priority patent/US11225739B2/en
Priority to CN201810274671.5A priority patent/CN108708078B/zh
Publication of EP3382082A1 publication Critical patent/EP3382082A1/de
Publication of EP3382082B1 publication Critical patent/EP3382082B1/de
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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
    • 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
    • D04H17/00—Felting apparatus
    • 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
    • D04H3/16—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 thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
    • 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
    • D01D11/00—Other features of manufacture
    • 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
    • D01D5/088—Cooling filaments, threads or the like, leaving the spinnerettes
    • 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
    • D01D5/088—Cooling filaments, threads or the like, leaving the spinnerettes
    • D01D5/092—Cooling filaments, threads or the like, leaving the spinnerettes in shafts or chimneys
    • 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)
    • 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
    • D01D7/00—Collecting the newly-spun products
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
    • D02J1/225—Mechanical characteristics of stretching apparatus
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J13/00—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass
    • 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
    • D04H3/005—Synthetic yarns or filaments
    • 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
    • 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
    • D04H3/03—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 at random
    • 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
    • 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
    • D01D13/00—Complete machines for producing artificial threads
    • D01D13/02—Elements of machines in combination

Definitions

  • the invention relates to a device for producing spunbonded nonwovens from continuous filaments, in particular continuous filaments made of thermoplastic material, with at least one spinnerette for spinning the filaments, at least one Monomerabsaugungsvorraum, at least one cooling device for cooling the filaments, at least one drawing device for stretching the filaments and at least one Storage device - especially in the form of a Ablagesiebbandes - for filing the filaments to the nonwoven web.
  • - Endless filaments means within the scope of the invention filaments with quasi endless length.
  • Such continuous filaments differ from staple fibers in that they have much smaller lengths of, for example, 10 to 60 mm.
  • the Monomerabsaugungsvortechnisch gas is sucked from the Filament avoirsraum below the spinnerette.
  • the gases exiting the continuous filaments such as monomers, oligomers, decomposition products and the like, can be removed from the device according to the invention.
  • Devices of the type mentioned are basically known in practice in various embodiments and are for example in the EP 1 630 265 A1 or the EP 1 340 843 A1 described. These devices are also referred to as spunbond devices. Many of the devices known from practice of this type have the disadvantage that at high filament speeds and high throughputs or production speeds, the quality of the Filamentablage leaves something to be desired. This applies above all to the homogeneity of the tray and the strength of the nonwoven webs produced. High filament speeds and low titers of the endless filaments produced can often only be achieved with significant losses in quality of the nonwoven webs produced. Therefore, the known devices can be improved.
  • the invention is based on the technical problem of specifying a device of the type mentioned above, in which high filament speeds and low titers as well as high production speeds can be realized and nonetheless the quality of the filament deposit or the nonwoven web produced meets all requirements.
  • the invention teaches an apparatus for producing spunbonded non-wovens, in particular of thermoplastic material, with at least one spinnerette for spinning the filaments, at least one Monomerenabsaugungsvoriques, at least one cooling device for cooling the filaments, at least one drawing device for stretching the filaments and with at least one depositing device - in particular in the form of a filing screen belt - for depositing the filaments to the nonwoven web, wherein at least a first deformable seal for sealing a first gap formed between the spinnerette and the monomer suction device is arranged between the spinnerette and the monomer abatement device and / or wherein at least one second deformable seal is provided between the monomer suction device and the cooling device for sealing a second gap formed between the monomer suction device and the cooling device and / or wherein between the cooling device and the drawing device or an intermediate channel of the drawing device at least a third deformable seal for sealing a between the cooling device and the stretching device or the intermediate channel formed third gap is arranged,
  • the invention is based on the recognition that the inventive sealing of the first and / or the second and / or the third gap - preferably by the sealing of all gaps - an advantageous effect on the aerodynamic conditions within the device results.
  • nonwoven webs or spunbonded nonwovens can be produced with optimum quality and, in particular, very homogeneous nonwoven webs / spunbonded nonwovens can be achieved, especially at high production speeds or filament speeds.
  • the invention is further based in this context on the knowledge that the surfaces delimiting the gaps are exposed to thermal deformation during operation of the device.
  • the invention has recognized that a seal or that seals are expedient, even at different gap widths or gap heights - especially transverse to the machine direction (MD) or CD direction - even at high internal pressures of, for example, about 2500 Pa still reliable caulk.
  • the high internal pressures or cabin pressures of, for example, over 2500 Pa are typical, especially at high filament speeds or production speeds.
  • Different gap widths or gap heights-in particular transversely to the machine direction (MD) or in the CD direction- also result from sagging of device components as a result of their weight or by deforming device components due to high internal pressures or cabin pressures.
  • the invention is based on the finding that, for these reasons, a seal or seals are expedient whose system properties with respect to the boundary areas or boundary surfaces of the respective gap are variable or adjustable. With such a seal according to the invention, different gap widths or gap heights can be compensated over the length or width of the gaps formed between the aforementioned device components, and thus the gaps can be effectively sealed.
  • Machine direction means in the context of the invention in particular the conveying direction of the filament deposit or nonwoven web on the depositing device or on the Ablagesiebband.
  • CD direction means in particular the direction transverse to the machine direction (MD).
  • a very particularly preferred embodiment of the invention is characterized in that both the first gap between the spinnerette and the Monomerabsaugungsvoriques and the second gap between the Monomerabsaugungsvortechnisch and the cooling device and the third gap between the cooling device and the drawing device or the intermediate channel by at least a deformable seal is sealed, the investment properties are each variable or adjustable with respect to at least one boundary surface of the respective gap.
  • the respective at least one first seal and / or at least one second seal and / or at least one third seal then seals over the respective width of the respective gap.
  • Width of a gap means in the context of the invention according to a preferred embodiment, the height or the vertical height of the respective gap. According to another preferred embodiment, however, it may also be-in particular if the device components are designed accordingly-a horizontal width of the respective gap or else an otherwise geometrically arranged width of the respective gap.
  • At least one seal - preferably the at least one first seal and / or the at least one second seal and / or the at least one third seal - in the width direction of the associated gap to a deformation of 3 to 20 mm, preferably from 4 to 18 mm and very preferably from 5 to 15 mm adjustable or deformable is / are.
  • This means, in particular, that the at least one seal can be deformed from a first state about the said deformation path in the direction of the width of the associated gap to a second state or enlarged with respect to the deformation path, and vice versa.
  • the deformation or adjustment preferably passive or automatic - in particular due to the pressure prevailing within the seal of a fluid medium - carried out or the deformation or adjustment takes place active, in particular due to the increase or decrease in the pressure prevailing within the seal of a fluid medium.
  • a very preferred embodiment of the invention is characterized in that the at least one first seal rotates over the entire circumference or essentially over the entire circumference of the filament flow passage F extending between the spinnerette and the monomer suction device and / or that the at least one second seal passes over the entire circumference or essentially over the entire circumference of the filament flow channel F extending between the monomer suction device and the cooling device and / or that the at least one third seal extends over the entire circumference or substantially the entire circumference of the device between the cooling device and the drawing device or the intermediate channel extending Filamentströmungskanals F rotates.
  • the at least one respective seal extends around the respective filament flow channel F both in the CD direction and in the MD direction.
  • a plurality of seals are arranged side by side in the first gap and / or in the second gap and / or in the third gap and this plurality of seals limited with respect to the respective gap the Filamentströmungskanal F. It is also possible that in at least one gap in the CD direction and / or in the MD direction a plurality of seals are juxtaposed or juxtaposed and thus first seals in the gap between Spinnerette and Monomerabsaugungsvorectomy and / or second seals in the gap between Monomerabsaugungsvorplatz and cooling device and or form third seals in the gap between the cooling device and drawing device.
  • a particularly recommended embodiment of the invention is characterized in that the at least one first seal and / or the at least one second seal and / or the at least one third seal is substantially or primarily deformable in a main deformation direction.
  • the main deformation direction is aligned parallel to the filament flow direction or substantially parallel to the filament flow direction and / or preferably oriented vertically or substantially vertically.
  • the main deformation direction of at least one seal or the seals is aligned perpendicular to the filament flow direction or substantially perpendicular to the filament flow direction and / or preferably horizontally or substantially horizontally aligned.
  • the deformation of the at least one first seal and / or the at least one second seal and / or the at least one third seal transversely to the respective main deformation direction is limited or limited according to a variant by arranged next to or on the respective seal sealing fins ,
  • the at least one first seal between Spinnerette and Monomerabsaugungsvor Vietnamese is fixed to the Monomerabsaugungsvor Vietnamese and the main deformation direction is provided by the Monomerabsaugungsvortechnische towards the spinnerette, wherein at least one boundary surface is provided for at least a first seal on the spinnerette, where the at least one first seal comes to rest.
  • the at least one first seal could also be fixed to the spinnerette and the main deformation direction is then provided by the spinnerette in the direction of the monomer suction device, wherein at least one boundary surface for the at least a first seal is then provided on the Monomerabsaugungsvorraum.
  • An embodiment of the invention is characterized in that the at least one second seal between the monomer suction device and the cooling device is fixed to the monomer suction device and the main deformation direction is provided by the monomer suction device in the direction of the cooling device, wherein at least one boundary surface for the at least one second Seal is provided on the cooling device to which the at least one second seal comes to rest.
  • the at least one second seal could also be fixed to the cooling device, and the main deformation direction is then provided by the cooling device in the direction of the monomer suction device, wherein at least one boundary surface for the at least one second seal is then provided on the monomer suction device.
  • a recommended embodiment of the invention is characterized in that the at least one third seal between cooling device and drawing device or intermediate channel is fixed to the drawing device or to the intermediate channel and the main deformation direction is then from the drawing device or from the intermediate channel Provided direction to the cooling device, wherein preferably at least one boundary surface for the at least one third seal is provided on the cooling device.
  • the at least one third seal could also be fixed to the cooling device and the main deformation direction is then aligned from the cooling device to the drawing device or to the intermediate channel, in which case the at least one boundary surface for the at least one third seal on the drawing device or on the Intermediate channel is provided.
  • the first seal and / or the second seal and / or the third seal is designed with the proviso that sealing takes place at a pressure in the filament flow passage F of more than 2000 Pa, in particular of more than 2500 Pa.
  • Such high pressures occur especially at high filament speeds.
  • the seal according to the invention it is achieved that at such high pressures or at high filament speeds and correspondingly low titers of the endless filaments produced, a high-quality filament deposit, in particular a filament deposit which is substantially homogeneous in all directions, is obtained.
  • a particularly recommended embodiment of the invention is characterized in that the at least one first seal and / or the at least one second seal and / or the at least one third seal can be filled or filled with a fluid medium.
  • a preferred embodiment of the invention is characterized in that at least one seal, preferably the at least one first seal and / or the at least one second seal and / or the at least one third seal due to the pressure prevailing in the seal of the fluid medium with changes Deformations of the associated gap automatically nach Harrison or deformed.
  • the pressure of the fluid medium in the respective seal is set with the proviso that the seal deformation or seal adjustment automatically in gap width changes - for example, due to deflections of device components - is carried out, preferably within the above-mentioned preferred deformation path.
  • the adjustment or adjustment of the respective seal by introducing fluid medium into the seal or by applying fluid medium from the seal. It is within the scope of the invention that upon introduction of the fluid medium into the seal, the pressure of the fluid medium in the seal is increased and that upon application of the fluid medium from the seal, the pressure of the fluid medium in the seal is lowered. Furthermore, it is within the scope of the invention that the pressure of the fluid medium in one of the seals in all sealing regions is equal or substantially equal and that preferably the contact pressure of the seal at different boundary areas or boundary surfaces of the respective gap is different.
  • the fluid medium which can be introduced into the seals or contained in the seals is a gaseous medium and in particular air.
  • the at least one first seal and / or the at least one second seal and / or the at least one third seal with the fluid medium in the form of a gaseous medium or in the form of air is inflatable.
  • the fluid medium or the gaseous medium, in particular air from the seal can also be drained off again.
  • the wall or at least wall parts of the at least one first seal and / or the at least second seal and / or the at least one third seal consists of at least one elastomer or of an elastomer.
  • the first seal and / or the second seal and / or the third seal may, according to an embodiment variant of the invention, be a ring seal surrounding the filament formation space.
  • the inventively provided seals are also very helpful in a maintenance of the device according to the invention and in particular when the device is to be transferred from its operating state to a maintenance state. It is within the scope of the invention that for transferring the device into a maintenance state, the system properties of at least one seal, in particular all seals, are variable so that the device components delimiting the respective gap to be sealed in this maintenance state relative to each other or displaced, in particular horizontal direction or approximately in the horizontal direction are displaced or moved.
  • a preferred embodiment of the device according to the invention is characterized in that for the transfer of the device into a maintenance state, the volume or sealing volume of at least one seal, in particular the seals or all seals are variable or reducible, so that a seal-free minimum width or minimum height at least one gap, in particular the column or all column remains.
  • system components can preferably be moved or moved relative to one another and, in particular, be displaced or moved in the horizontal direction.
  • the volume of a seal or the seals on the cooling device can be reduced so that a seal-free minimum width or minimum height of the gap between the cooling device and Monomerabsaugungsvoriques and / or the gap between the cooling device and drawing device results.
  • the cooling device can be moved horizontally for maintenance purposes or moved out of the device.
  • An alternative embodiment of the invention is characterized in that one or at least one deformable seal has at least one sealing element pressed against a boundary surface of the gap to be sealed by means of at least one spring element.
  • the dimensions and / or the spring travel and / or the spring stiffness of the spring element are dimensioned with the proviso that a sealing contact or a sealing contact of the sealing element is ensured with the associated boundary surface of the gap to be sealed.
  • the sealing element may be, for example, a sealing lip, which is preferably connected to a spring element. It is recommended that the abutment engagements of at least one seal or at least one spring-loaded sealing element can be adjusted by means of at least one manipulation element influencing or acting on the spring element.
  • the device can be converted into a maintenance state by this adjustment of the system properties of at least one spring-loaded sealing element.
  • the cooling device for cooling the filaments is arranged downstream of the monomer extraction device in the filament flow direction.
  • the cooling device only has a cooling chamber section in which cooling air is applied to the continuous filaments flowing through.
  • the cooling device has at least two cooling chamber sections arranged one behind the other or in the filament flow direction, in which cooling air of different temperature can be applied to each of the continuous filaments flowing through. The device can also be set up with the proviso that the exit velocity of the process air is different from an upper cooling chamber for cooling the filaments and the exit velocity from a lower cooling chamber.
  • the aggregate from the cooling device and the drawing device connected thereto in the filament flow direction is designed as a closed unit and that, apart from the supply of the cooling air in the cooling device, no further supply of a fluid medium or no further air supply into this unit or into this unit closed aggregate takes place.
  • the realization of such a closed unit has proven particularly useful with regard to the solution of the technical problem of the invention.
  • At least one diffuser is arranged between the drawing device and the depositing device or the depositing screen belt so that filaments and primary air pass from the drawing device into the diffuser.
  • at least two secondary air inlet gaps arranged on opposite sides of the diffuser are provided in the area of the at least one diffuser, through which secondary air enters the diffuser.
  • a particularly recommended embodiment of the invention is characterized in that at least one secondary air inlet gap, preferably at least two secondary air inlet gaps are formed with the proviso that the secondary air in an inflow ⁇ to Filamentströmungscardi FS or to the longitudinal center plane M of the device or the Diffuser flows in.
  • the inflow angle ⁇ can be between 75 ° and 115 °, advantageously between 80 ° and 110 °.
  • the inflow angle ⁇ is equal to 90 ° or less than 90 °, preferably less than 80 °, preferably less than 70 ° and particularly preferably less than 65 °. It has proven particularly useful the inflow angle ⁇ is less than 60 °, preferably less than 55 °, and preferably less than 50 °.
  • the inflow angle ⁇ is between 0 and 60 °, advantageously between 1 and 55 °, preferably between 2 and 50 °, very preferably between 2 and 45 ° and particularly preferably between 2 and 40 °.
  • the inflow of secondary air takes place with the proviso that the secondary air flows parallel or quasi parallel to the filament flow direction FS after their entry.
  • the secondary air inlet gaps are set up correspondingly to realize the inflow angle ⁇ , in particular by means of inflow slopes and / or inflow channels and the like.
  • the realization of the inflow angle ⁇ according to the invention for the secondary air has proven particularly useful in the context of the invention and contributes efficiently to the solution of the technical problem according to the invention.
  • the ratio of the volume flows of primary air and secondary air V P / V S is less than 5 and preferably less than 4.5.
  • the filament flow direction FS behind or below the secondary air inlet gaps includes a convergent region of the or a diffuser.
  • a constriction of the diffuser is provided in the filament flow direction FS following this convergent region of the diffuser, and at least one divergent region of the diffuser preferably adjoins this constriction.
  • the diffuser outlet angle ⁇ of this divergent diffuser section to the longitudinal center axis M of the diffuser is recommended maximum 30 °, preferably at most 25 °.
  • the last diffuser section in the filament flow direction FS has divider walls diverging towards the depositing device or the depositing screen belt and that these diffuser walls have a diffuser wall Diffuser exit with a width B in the machine direction (MD) form.
  • at least one suction device is provided for sucking off air or process air through the depositing device or through the depositing screen belt.
  • a suction region arranged below the diffuser outlet is provided with a width b in the machine device, wherein this width b of the suction region is greater than the width B of the diffuser outlet.
  • the width b of the suction is at least 1.2 times, preferably at least 1.3 times, and more preferably at least 1.4 times the width B of the diffuser exit. It is within the scope of the invention that the suction region with respect to the machine direction (MD) behind the storage area of the filaments to a (first) exhaust section protrudes beyond the diffuser exit and / or that the suction with respect to the machine direction (MD) before the storage area of the filaments to a (second) suction section protrudes beyond the diffuser exit.
  • the suction region or the Hauptabsaug Scheme protrudes on both sides with respect to its width b beyond the width B of the diffuser outlet on the one side to the first suction and on the other side to the second suction section.
  • a highly recommended embodiment of the invention is characterized in that the extraction by the suction device is carried out with the proviso that at least in the region of the diffuser outlet tertiary air flows along the outer surface of the diffuser walls in the direction of storage device or Ablagesiebband.
  • the tertiary air flows are preferably aligned parallel or substantially parallel to the mixed flow of primary air and secondary air flowing in the direction of the diffuser outlet in the interior of the diffuser. It is within the scope of the invention that also tertiary air is sucked through the storage device or through the Ablagesiebband.
  • the extracted with the suction device volume flow of the tertiary air V T is at least 25%, preferably at least 40% and more preferably at least 50% of the volume flow of the extracted primary and secondary air streams.
  • a recommended embodiment of the invention is characterized in that the distance between the diffuser or between the lower edge / the lowest edge of the diffuser and the Ablagesiebband is 20 to 300 mm, in particular 30 to 150 mm and preferably 30 to 120 mm. This embodiment has proven particularly useful in the context of the invention for solving the technical problem according to the invention.
  • the invention is based on the finding that nonwoven webs or spunbonded webs can be produced with excellent quality and in particular with very homogeneous properties with the device according to the invention in a simple and efficient manner. This is especially true at high production speeds or at high filament speeds and correspondingly low titers of continuous filaments.
  • the device according to the invention is relatively simple and inexpensive to implement and, above all, is operable.
  • the figures show a device according to the invention for producing spunbonded nonwovens from continuous filaments 1, in particular from continuous filaments 1 made of thermoplastic material.
  • the device has a spinnerette 2 for spinning the continuous filaments 1 and a monomer extraction device 4 arranged in the filament flow direction FS below the spinnerette 2.
  • the monomer extraction device 4 can remove interfering gases occurring during the spinning process, such as in particular monomers or oligomers, from the device.
  • the Monomerabsaugungsvoriques 4 is connected in the filament flow direction FS a cooling device 3 for cooling the filaments 1 downstream.
  • the cooling device 3 is in two in the filament flow direction FS successively or mutually arranged cooling chambers 9, 10, wherein the cooling chambers 9, 10 preferably and in the embodiment with cooling air of different temperatures are acted upon.
  • the cooling device 3 may also have only a single cooling chamber.
  • the cooling device 3 of the device according to the invention is followed by a drawing device 11 for drawing the filaments 1.
  • the drawing device 11 has an intermediate channel 11.1 adjoining the cooling device 3 or the lower cooling chamber 10 and a drawing shaft 11.2 adjoining the intermediate channel 11.1.
  • the intermediate channel 11.1 of the drawing device 11 is preferably designed to converge in the exemplary embodiment in the filament flow direction FS.
  • a first gap 2.1 is arranged, which rotates in the rule and in the exemplary embodiment to the entire filament flow space F.
  • a second gap 5 is present, which also normally and in the exemplary embodiment revolves around the entire filament flow space F.
  • a third gap 6 is formed between the cooling device 3 or the lower cooling chamber 10 and the drawing device 11 or the intermediate channel 11. 1 of the drawing device 11, which as a rule and in the exemplary embodiment also revolves around the entire filament flow space F.
  • a first seal 2.2 is provided in the first gap 2.1, which seals the first gap 2.1 and it is in the second gap 5, a second seal 7 is arranged, which seals the second gap 5. Furthermore, it is recommended, and in the exemplary embodiment in the third gap 6, a third seal 8 is provided which seals the third gap 6.
  • sealing means in particular that the filament-forming space or filament flow space F passes through the seals 2.2, 7, 8 is sealed to the outside and leaks are avoided as possible.
  • the first seal 2.2, the second seal 7 and the third seal 8 are in each case a seal 2.2, 7, 8 or annular seal which revolves over the filament flow space F.
  • the three seals 2.2, 7, 8 are in particular formed as deformable seals 2.2, 7, 8 and are with respect to their investment properties - in particular variable with respect to their contact force - with respect to the respective column 2.1, 5, 6 limiting boundary surfaces or adjustable. Adjustable here means, in particular, that the seals 2.2, 7, 8 are deformable in the direction of the boundary surfaces of the gaps 2.1, 5, 6, so that the seals 2.2, 7, 8 fixed or close to the boundary surfaces of the column 2.1, 5, 6 lie sealingly.
  • the first gap 2.1 of the second gap 5 and the third column 6 may in the exemplary embodiment have a height h1, a height h2 and a height h3, which lies in the range between 5 and 30 mm.
  • the respective seals 2.2, 7, 8 seal the gaps 2.1, 5, 6 respectively over this height h1 or h2 or h3.
  • Nonuniformities of the respective heights h1, h2 or h3 of the gaps 2.1, 5, 6 can each be compensated for by the variation / readjustment of the system properties according to the invention - in particular the contact pressure force - of the seals 2.2, 7, 8.
  • all three seals 2.2, 7, 8 are each substantially or predominantly deformable in a main deformation direction.
  • the main deformation direction is preferred and, in the exemplary embodiment, parallel to the filament flow direction FS and vertically aligned.
  • the main deformation direction of the seals 2.2, 7, 8 respectively in the direction of the opposite boundary surface of the respective gap 2.1, 5, 6 aligned.
  • the embodiment (s. 4 and 5 ) are only the boundary surfaces 5.1 and 6.1 of the two columns 5 and 6 shown.
  • the deformation of the seals 2.2, 7, 8 is limited or restricted by sealing guide surfaces arranged next to the respective seals 2.2, 7, 8.
  • sealing guide surfaces arranged next to the respective seals 2.2, 7, 8.
  • only the sealing fins 7.1 and 8.1 are shown next to the seals 7 and 8.
  • the third seal between the cooling device 3 and the drawing device 11 and the intermediate channel 11.1 is fixed to the drawing device 11 and at the top of the intermediate channel 11.1 and the main deformation direction of this third seal 8 is of the intermediate channel 11.1 to the cooling device 3 oriented upward.
  • This third seal 8 then comes to the provided on the underside of the cooling device 3 boundary surface 6.1 of the third gap 6 to the plant. Due to the described preferred arrangement of the seals 7, 8 and their preferably provided main deformation directions are held - especially in the CD direction - occurring deformations or deflections of the cooling device 3 and here extending column 5, 6 can with the seals of the invention 7, 8 are effectively sealed.
  • seals 2.2, 7, 8 filled with a gaseous medium or filled.
  • the gaseous medium is expediently air.
  • the adjustment or adjustment of the system properties of the seals 2.2, 7, 8 takes place in particular by introducing the gaseous medium or by air into the seal 2.2, 7, 8 or by discharging the gaseous medium or the air from the seal 2.2, 7th , 8.
  • the seals 2.2, 7, 8 are inflatable seals 2.2, 7, 8 and inflatable ring seals 2.2, 7, 8.
  • the walls of the seals 2.2, 7, 8 may consist of an elastomer in the embodiment.
  • the seals 2.2, 7, 8 are preferably ring seals or tubular seals 2.2, 7, 8.
  • the seals 2.2, 7, 8 are designed with the proviso that a seal at a pressure in the filament flow space F of more than 2000 Pa, in particular of more than 2500 Pa takes place.
  • the unit of the cooling device 3 and the drawing device 11 is formed as a closed unit, except for the supply of cooling air in the cooling device 3 no further supply of a fluid medium or no further air supply takes place in this closed unit.
  • the drawn filaments 1 are deposited on a depositing device in the form of a storage screen belt 12 to the nonwoven web 13.
  • a diffuser 14 is disposed between the drawing device 11 and the Ablagesiebband 12, so that filaments 1 and primary air P from the drawing device 11 enter the diffuser 14.
  • two opposing secondary air inlet gaps 16, 17 for the introduction of secondary air S are arranged between the drawing device 11 or between the drawing shaft 11.2 of the drawing device 11 and the diffuser 14.
  • the secondary air inlet gaps 16, 17 extend over the entire width or CD width of the device according to the invention.
  • the secondary air is supplied through the secondary air inlet gaps 16, 17 with an inflow angle ⁇ , which is preferably less than 60 ° and very preferably between 2 and 50 °.
  • inflow guides 18 are provided in the exemplary embodiment, which in the exemplary embodiment are designed as inflow channels 19 connected obliquely to the secondary air inlet gaps 16, 17.
  • the inflow channels 19 form an angle with the filament flow direction FS or with the longitudinal central axis M, with the proviso that the secondary air S can flow in at the indicated inflow angle ⁇ .
  • the volume flow of secondary air S supplied through the secondary air inlet gaps 16, 17 can be adjusted. - Due to the entry of the secondary air S through the secondary air inlet column 16, 17 14 Primary air P is mixed with secondary air S in the diffuser. According to a preferred embodiment, in the region of the secondary air inlet gaps 16, 17, the ratio of the volume flows of primary air and secondary air V P / V S is less than 5 and preferably less than 4.5.
  • the diffuser 14 has a convergent diffuser section 20 behind or below the secondary air inlet gaps 16, 17. At this convergent diffuser section 20 closes preferred and in the embodiment a constriction 21 of the diffuser 14 at. In the filament flow direction FS behind or under the constriction 21 of the diffuser 14 is preferred and equipped in the embodiment with a divergent diffuser section 22.
  • the diffuser exit angle ⁇ between a diffuser wall 23 of the divergent diffuser section 22 and the longitudinal center axis M of the diffuser 14 is a maximum of 25 °.
  • the continuous filaments 1 emerging from the diffuser 14 or from the divergent diffuser section 22 are deposited on the depositing device for filament placement or nonwoven web 13, which is designed as a stocking strip 12.
  • the nonwoven web 13 is then conveyed away or transported away with the Ablagesiebband 12 in the machine direction MD.
  • an extraction device for extracting air or process air through the storage device or through the deposit screen belt 12 is provided.
  • a suction region 25 is arranged below the diffuser outlet 24, which preferably has a width b in the machine direction MD. This width b of the suction region 25 is preferably greater than the width B of the diffuser outlet 24 in the exemplary embodiment.
  • the width b of the suction region 25 is at least 1.2 times, preferably at least 1.3 times, the width B of the suction region 25 Diffuser exit 24.
  • the width B of the diffuser outlet 24 is measured as a horizontal distance of the lower ends of the diffuser walls 23. If the ends of the diffuser walls 23 of the divergent diffuser section 22 do not terminate in the same horizontal plane or at the same vertical height, preferably the distance of the end of the longer diffuser wall 23 from the end of the elongated shorter diffuser wall 23 is at the same vertical height measured.
  • the suction area 25 arranged below the storage screen belt 12 is delimited by two partitions 26, 27 arranged one behind the other in the machine direction MD.
  • the width b of the Absaug Symposiumes 25 is measured as a distance between the two partitions 26, 27 and in particular as the distance between the upper ends of the two partitions 26, 27, especially in the Fig. 3 It can be seen that the suction region 25 protrudes beyond the deposition region of the filaments 1 by a first suction section 28 with respect to the machine direction MD via the diffuser exit 24 or over the width B of the diffuser exit 24. Furthermore, preferably and in the exemplary embodiment, the suction region 25 protrudes beyond the storage area of the filaments 1 by a second suction section 29 with respect to the machine direction MD beyond the diffuser exit 24 or across the width B of the diffuser exit 24. In the Fig.
  • first suction section 28 has a width b 1 and the second suction section 29 has a width b 2 .
  • the suction region 25 in turn is subdivided by at least one partition wall or by partitions. However, it is then preferred for the speed or the average speed of the sucked-off air over the entire width of the suction area 25 to be the same or essentially the same in this suction area 25 or in this suction area divided by partitions 25.
  • the suction is carried out by the Ablagesiebband 12 with the proviso that in the region of the diffuser outlet 24 tertiary air T along the outer surfaces 30 of the diffuser 14 and the divergent diffuser section 22 in the direction of Ablagesiebband 12 flows.
  • the streams of the tertiary air T are aligned parallel or substantially parallel to the mixed stream of primary air P and secondary air S flowing in the direction of the diffuser outlet 24 of the diffuser 14.
  • the streams of primary air P, secondary air S and tertiary air T preferably flow parallel or quasi parallel through the deposit screen belt 12.
  • the Fig. 6 shows an alternative embodiment of a seal 2.2 according to the invention, which seals the first gap 2.1 between the spinnerette 2 and the Monomerabsaugungsvoriques 4 in the embodiment.
  • This alternative seal 2.2 has a by means of a spring element 31 pressed against the boundary surface of the gap to be sealed 2.1 sealing element 32, which is designed for example as a sealing lip.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Nonwoven Fabrics (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
EP17164368.7A 2017-03-31 2017-03-31 Vorrichtung zur herstellung von spinnvliesen aus endlosfilamenten Active EP3382082B1 (de)

Priority Applications (19)

Application Number Priority Date Filing Date Title
ES17164368T ES2754605T3 (es) 2017-03-31 2017-03-31 Dispositivo para la fabricación de velos de hilatura a partir de filamentos continuos
PL17164368T PL3382082T3 (pl) 2017-03-31 2017-03-31 Urządzenie do wytwarzania włóknin otrzymywanych metodą "spod filiery" z włókien ciągłych bez końca
SI201730110T SI3382082T1 (sl) 2017-03-31 2017-03-31 Naprava za proizvodnjo tkanih polsti iz brezkončnih filamentov
DK17164368.7T DK3382082T3 (da) 2017-03-31 2017-03-31 Indretning til fremstilling af filterduge af endeløse filamenter
EP17164368.7A EP3382082B1 (de) 2017-03-31 2017-03-31 Vorrichtung zur herstellung von spinnvliesen aus endlosfilamenten
JOP/2018/0031A JO3482B1 (ar) 2017-03-31 2017-03-31 جهاز لإنتاج مادة منسوجة من خيوط متواصلة
CA2996577A CA2996577C (en) 2017-03-31 2018-02-26 Device for producing spunbonds from endless filaments
MYPI2018700959A MY191528A (en) 2017-03-31 2018-03-12 Device for producing spunbonds from endless filaments
CONC2018/0002716A CO2018002716A1 (es) 2017-03-31 2018-03-15 Dispositivo para la fabricación de textiles no tejidos de filamentos sinfín
MX2018003228A MX2018003228A (es) 2017-03-31 2018-03-15 Dispositivo para la fabricacion de textiles no tejidos de filamentos sinfin.
ARP180100619A AR111333A1 (es) 2017-03-31 2018-03-16 Dispositivo para la fabricación de textiles no tejidos de filamentos sinfín
ZA2018/01817A ZA201801817B (en) 2017-03-31 2018-03-19 Device for producing spunbonds from endless filaments
KR1020180035025A KR102213091B1 (ko) 2017-03-31 2018-03-27 끝이 없는 필라멘트들로부터 스펀본드들을 제조하기 위한 장치
SA118390478A SA118390478B1 (ar) 2017-03-31 2018-03-28 جهاز لإنتاج ألياف مترابطة مغزولة من شعيرات متصلة
RU2018111080A RU2699875C9 (ru) 2017-03-31 2018-03-28 Устройство для изготовления фильерных нетканых материалов из элементарных нитей
US15/939,703 US11225739B2 (en) 2017-03-31 2018-03-29 Apparatus for making spunbond from continuous filaments
BR102018006568-8A BR102018006568B1 (pt) 2017-03-31 2018-03-29 Dispositivo para produção de velos de fiação de filamentos sem fim
JP2018063808A JP6863924B2 (ja) 2017-03-31 2018-03-29 無端フィラメントから、スパンボンデット不織布を製造するための装置
CN201810274671.5A CN108708078B (zh) 2017-03-31 2018-03-30 用于由连续长丝制造纺粘制品的装置

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EP17164368.7A EP3382082B1 (de) 2017-03-31 2017-03-31 Vorrichtung zur herstellung von spinnvliesen aus endlosfilamenten

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EP3382082B1 true EP3382082B1 (de) 2019-08-07

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EP (1) EP3382082B1 (zh)
JP (1) JP6863924B2 (zh)
KR (1) KR102213091B1 (zh)
CN (1) CN108708078B (zh)
AR (1) AR111333A1 (zh)
BR (1) BR102018006568B1 (zh)
CA (1) CA2996577C (zh)
CO (1) CO2018002716A1 (zh)
DK (1) DK3382082T3 (zh)
ES (1) ES2754605T3 (zh)
JO (1) JO3482B1 (zh)
MX (1) MX2018003228A (zh)
MY (1) MY191528A (zh)
PL (1) PL3382082T3 (zh)
RU (1) RU2699875C9 (zh)
SA (1) SA118390478B1 (zh)
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BR102018006568B1 (pt) 2023-05-16
BR102018006568A2 (pt) 2018-12-18
PL3382082T3 (pl) 2020-03-31
EP3382082A1 (de) 2018-10-03
CN108708078A (zh) 2018-10-26
RU2699875C9 (ru) 2019-11-06
CA2996577A1 (en) 2018-09-30
KR20180111575A (ko) 2018-10-11
CA2996577C (en) 2021-08-24
US11225739B2 (en) 2022-01-18
JOP20180031A1 (ar) 2019-01-30
ES2754605T3 (es) 2020-04-20
SI3382082T1 (sl) 2019-11-29
MY191528A (en) 2022-06-29
JP2018172840A (ja) 2018-11-08
RU2699875C1 (ru) 2019-09-11
CN108708078B (zh) 2022-03-18
AR111333A1 (es) 2019-07-03
US20180282925A1 (en) 2018-10-04
KR102213091B1 (ko) 2021-02-04
ZA201801817B (en) 2019-07-31
DK3382082T3 (da) 2019-10-21
JP6863924B2 (ja) 2021-04-21
CO2018002716A1 (es) 2019-03-18
MX2018003228A (es) 2018-11-29
JO3482B1 (ar) 2020-07-05

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