EP2718492A1 - Vorrichtung zum erzeugen eines faserproduktes durch ablegen schmelzgesponnener fasern - Google Patents
Vorrichtung zum erzeugen eines faserproduktes durch ablegen schmelzgesponnener fasernInfo
- Publication number
- EP2718492A1 EP2718492A1 EP12725396.1A EP12725396A EP2718492A1 EP 2718492 A1 EP2718492 A1 EP 2718492A1 EP 12725396 A EP12725396 A EP 12725396A EP 2718492 A1 EP2718492 A1 EP 2718492A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- suction
- upper box
- belt
- chamber
- box
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/005—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
- 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
- D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
- D04H1/56—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving in association with fibre formation, e.g. immediately following extrusion of staple fibres
-
- 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
- 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
Definitions
- the invention relates to a device for producing a fiber product by depositing melt-spun fibers according to the preamble of claim 1.
- a generic device for producing a fiber product by depositing melt-spun fibers on a storage belt is known for example from WO 2010/054943 AI.
- a suction device is provided on the underside of the storage belt in order to absorb and discharge the blown air generated on deposit and to influence the deposition of the fibers on the surface of the storage belt to form the fiber product. It is necessary that on the underside of the storage belt via a storage zone by the suction of a substantially uniform negative pressure is generated in order to obtain any irregularities in the storage of the fibers and receiving the blowing air.
- the known device has for this purpose a large-volume suction chamber which extends below the storage belt with a chamber opening transverse to the storage belt.
- the suction chamber is designed to be movable below the depositing belt in order to be able to form a different suction zone in the conveying direction of the depositing belt.
- the suction chamber is held on a carrier which has a stationary suction port.
- a lower chamber opening of the suction chamber is designed such that in each position of the suction chamber, the suction connection is connected to the suction chamber.
- the suction port is formed in its cross-sectional opening substantially smaller than the inlet opening of the suction chamber.
- EP 1 225 263 A1 discloses a suction device for a storage belt for receiving deposited fibers, in which the suction device has three separate suction chambers, which are arranged one behind the other in the conveying direction of the storage belt. Each of the suction chambers forms a chamber opening in relation to the depositing belt, so that a plurality of evacuated depositing zones are formed on the surface of the depositing belt. In this way, relatively large channel cross-sections can be realized on each of the suction chambers in order to realize the requirement of low air velocities and a relatively low pressure drop through the exhaust system.
- an individual adjustment of the chamber openings of the suction chambers relative to the storage belt is not possible.
- suction chamber is formed of a stationary lower case and a movable upper box, which are pressure-tight coupled together.
- the invention is characterized in that the entire chamber cross section of the suction chamber can be used to guide the suction flow depending on the position of the upper box in the lower box.
- a separating zone formed between the upper box and the lower box different positions of the upper box relative to the lower box can be realized. A deflection of the suction flow is not required here, since the upper box and the lower box are held in a vertical arrangement below the storage belt.
- the invention can be further improved in that a seal for sealing the suction chamber is arranged in a sliding joint between the lower box and the upper box and wherein the lower box is connected to a suction port.
- a seal for sealing the suction chamber is arranged in a sliding joint between the lower box and the upper box and wherein the lower box is connected to a suction port.
- the device according to the invention is formed according to an advantageous development in which the upper box relative to the storage belt forms an elongated chamber opening to the suction chamber, which is aligned transversely to the storage belt, and wherein the position of the chamber opening relative to the storage belt by a rotational movement of the upper box relative to the lower box is changeable. For an individual width adjustment of the storage zone on the storage belt is possible.
- the upper box and the Subcase have a plurality of suction chamber, which are arranged one behind the other in the conveying direction of the storage belt, wherein each of the suction chambers is assigned one of a plurality of seals between the upper box and the lower box. Due to the additional suction chambers, the foreign air present in the environment can advantageously be included in the deposition zone for depositing the fibers.
- the suction power is adjustable individually in the Sauschn
- the variant of the invention is preferably carried out in which the suction chambers in the lower box are assigned a plurality of Saugan gleichkanäle, wherein the suction chambers are separately connectable to one of several suction fans.
- a greater negative pressure for receiving the blowing flow and for depositing the fibers could be set in comparison to the adjacent suction chambers, which could be operated at lower negative pressures.
- the suction chambers in the upper box advantageously have a plurality of chamber openings which are arranged parallel to one another and, depending on the position of the upper box, extend transversely to the depositing belt relative to the depositing belt.
- the embodiment of the device according to the invention has proven particularly useful in which a central suction chamber within the sliding joint between the two boxes has a circular transitional cross-section and two outer suction chambers enclosing the middle suction chamber within the sliding joint between the two boxes each have a kidney-shaped transition cross-section.
- To adjust the width of the storage zone of the upper box is advantageously designed relative to the lower box in an angular range of 45 ° adjustable.
- the adjustment of the upper box relative to the lower box is advantageously carried out by one or more Stellaktoren that allow the upper box a shift or rotation about a central axis.
- the upper box and the lower box are usually arranged in a machine frame.
- the influence of the external air can also be advantageously determined by displacement of the suction device relative to the spinning device in the machine direction.
- the lower box together with the upper box run in the direction of the storage belt adjustable.
- the spinning device has an elongated spinning beam, which extends transversely to the storage belt and which in a parallel plane to the storage belt is designed to be pivotable.
- the spinning beam can be parallel to the upper box of the suction in a corresponding position, so that the filing and recording of the fibers can be made substantially centrally of the adjusted chamber opening of the suction chamber.
- the device according to the invention thus offers a high degree of flexibility in order to deposit a plurality of melt-spun fibers on a storage belt into a fiber product.
- the spinning device may comprise the means customary for melt-blowing, so that the extruded fibers are guided onto the depositing belt by means of an air flow generated on both sides of the spinneret.
- the spinning device next to the spinneret has a spaced-apart draw-off nozzle, which receives the extruded filaments and blows with an air flow on the storage belt.
- Such fiber products are also referred to in professional circles as so-called spunbond nonwovens.
- the device according to the invention provides independent of the filing process over the respective used storage zone uniform generation of a suction, so that over the entire width of a storage zone uniform production of the fiber product is possible.
- Fig. 1 shows schematically a longitudinal sectional view of a first embodiment of the device according to the invention
- FIG. 2 is a schematic plan view of the embodiment of FIG. 1
- FIG. 3 is a schematic plan view of the suction device of the embodiment from FIG. 1 arranged below the storage belt.
- Fig. 4 shows schematically a plan view of the embodiment of Fig. 3 in a changed position
- Fig. 5 shows schematically a longitudinal sectional view of another embodiment of the device according to the invention 6 is a schematic cross-sectional view of the embodiment of FIG. 5
- FIG. 7 is a schematic plan view of a lower box of the suction device according to the exemplary embodiment according to FIG. 5
- a first embodiment is shown schematically in several views.
- Fig. 1 shows the embodiment in a longitudinal sectional view and
- Fig. 2 in a plan view.
- the following description applies to both figures, insofar as no explicit reference is made to one of the figures.
- the first embodiment of the device according to the invention for producing a fiber product by depositing melt-spun fibers has a gas-permeable storage belt 6, which is guided over a plurality of belt rollers 10.1 and 10.2.
- the storage belt 6 is shown only in a partial section and is usually formed as an endless belt and guided over one or more driven belt rollers.
- a spinning device 1 is provided which contains a spaced apart from the storage belt 6 spinning beam 2.
- the spinning beam 2 carries on its underside a nozzle device 3, which in this case for melt blowing of fibers from a spinneret and two arranged on both sides of the spinneret air nozzles.
- Such nozzle devices are well known and described for example in EP 2 208 811 AI.
- two separate air connections 5.1 and 5.2 are formed on the spinning beam 2 and connected to the nozzle device 3.
- the spinning beam 2 is held in a machine frame, not shown here, and pivotable about a pivoting device 23 parallel to the storage belt 6.
- the pivoting device 23 is formed in this embodiment by two pivoting actuators 24.1 and 24.2, which engage respectively at the ends of the spinning beam 2 and rotate the spinning beam 2 about a vertical center axis.
- the bottom of the storage belt 6 is associated with a suction device 9.
- the suction device 9 has a suction chamber 11 which is formed by a stationary lower box 12 and a movable upper box 13.
- the upper box 13 is pressure-tightly coupled to the lower box 12.
- a sliding joint 15 is formed between the lower box 12 and the upper box 13, in which a seal 16 is arranged and a formed within the suction chamber 11 through opening 25 between the lower box 12 and the upper box 13 surrounds.
- the lower box 12 thus includes a lower chamber portion 18 of the suction chamber 11 and the upper box 13 an upper chamber portion 17 of the suction chamber eleventh
- the passage opening 25 between the lower chamber portion 18 and the upper chamber portion 17 is reduced in cross-section with respect to the suction chamber 11.
- the upper box 13 has on its upper side a chamber opening 14, which is assigned directly to the underside of the storage belt 6.
- the chamber opening 14 forms the connection between a at the The top of the storage belt 6 formed deposition zone of the melt-spun fibers and the suction chamber 11.
- a suction flow acting on the storage belt 6 can be generated.
- the upper box 13 is disposed between the belt rollers 10.1 and 10.2, make a seal of the bottom of the storage belt 6 in addition to the leadership of the storage belt 6, so that no foreign air can be sucked in on the underside of the storage belt 6 via the suction chamber 11.
- a lateral actuating arm 21 is arranged on the upper box, on which a Stellaktor 22 attacks.
- the upper box 13 can rotate relative to the lower box 12 about a central vertical axis.
- the passage opening 25 is advantageously made circular, so that the suction power of the suction chamber 11 remains the same regardless of the position of the upper box 13.
- the lower box 12 has a suction port 19, which is connected to a suction fan 20, as shown schematically in Fig. 2.
- FIG. 3 and 4 a plan view of the suction device 9 is shown below the storage belt 6 in different operating positions.
- Fig. 3 shows the embodiment of the suction device in the operating position, as described in FIGS. 1 and 2.
- the suction device is shown in a rotated by an adjusting angle position of the upper box 13 relative to the lower box 12.
- a polymer melt is fed to the spinning beam 12 via the melt feed 4.
- the polymer melt is extruded under pressure via the nozzle device 3 and blown onto the deposition belt 6 by means of an air flow. This situation is shown in FIG.
- the fibers 7 are deposited with the support of the suction flow generated by the suction device 9 on the surface of the storage belt 6 to the fiber product 8.
- the fiber product 8 is continuously guided out of the storage zone of the fibers 7.
- the fibers 7 are produced on a working width of the depositing belt 6, which is determined essentially by the position of the spinning beam 2 relative to the depositing belt 6.
- the spinning beam 12 is aligned substantially orthogonal to the depositing belt 6. Accordingly, the chamber opening 14 extends at the top of the upper box 13 also orthogonal to the storage belt 6th
- the spinning beam 2 can be pivoted about the pivoting device 23 in a corresponding angular position, so that sets a reduced working width on the surface of the storage belt 6 and a fiber product 8 can be produced with a smaller width.
- the suction flow generated by the suction chamber 11 via the chamber opening 14 is identical in each of the desired operating position, so that in each position of the Spinnbalkens 2 and the suction device 9 a uniform storage of the fibers is possible.
- FIGS. 5 and 6 show a further exemplary embodiment of the device according to the invention in several views.
- Fig. 5 shows the embodiment in a longitudinal sectional view
- Fig. 6 in a cross-sectional view. Unless expressly made to any of the figures, the following description applies to both figures.
- Fig. 5 and 6 The embodiment shown in Fig. 5 and 6 is substantially identical to the aforementioned embodiment, so that the components of the same function are identified by the identical reference numerals and so that only the differences are explained below.
- the suction device 9 below the storage belt 6 a plurality of suction chambers 11.1, 11.2 and 11.3.
- the suction chambers 11.1, 11.2 and 11.3 are formed in a lower box 12 and a top box 13 in parallel juxtaposed transversely to the conveying direction of the storage belt 6.
- Each of the suction chambers 11.1 to 11.3 is assigned to the top of the upper box a chamber opening 14.1, 14.2 and 14.3.
- the chamber openings 14.1, 14.2 and 14.3 extend transversely to the storage belt 6 and are assigned to a storage zone provided on the upper side of the storage belt 6 for receiving the fibers 7.
- the upper box 13 is formed in this embodiment of a cuboidal upper part and a rotationally symmetrical lower part, which is coupled via a sliding joint 15 pressure-tight with the lower box 12.
- a plurality of through holes 25.1, 25.2 and 25.3 are provided, which have a lower chamber portion 18.1, 18.2 and 18.3 with the respective upper chamber portion 17.1, 17.2 and 17.3 of the suction chamber
- Fig. 7 is a plan view of the lower box 12 is shown to illustrate the formation of the through holes 25.1 to 25.3 of the suction chambers 11.1 to 11.3.
- the middle suction chamber 11.2 has a circular passage opening 25.2 between the lower box 12 and the upper box 13.
- the passage opening 25.2 is enclosed by the seal 16.2 in the sliding joint 15.
- the outer suction chambers 11.1 and 11.3 each have kidney-shaped through openings 25.1 and 25.3, which are mirror images of the central through hole 25.2 in the lower box 12 and the upper box 13 are formed.
- the kidney-shaped through holes 25.1 and 25.3 are enclosed in the sliding joint 15 by the seals 16.1 and 16.3.
- the through holes 25.1 and 25.2 are in the lower box 12 and in the upper box 13, however, carried out in different sizes to get at a rotation of the upper box 13 no leakage in the sliding joint 15.
- the through holes 25.1 and 25.3 in the upper box 13 are smaller than the through holes in the lower box 12th
- the suction chambers 11.1, 11.2 and 11.3 are connected via the lower box 12 with separate suction connection channels 19.1, 19.2 and 19.3.
- Each of the suction connection channels 19.1, 19.2 and 19.3 are assigned separate suction blowers, not shown here, in order to set individual negative pressures for generating suction flows on the storage belt 6 in each of the suction chambers 11.1, 11.2 and 11.3.
- a higher negative pressure of, for example, 200 mbar can be generated in order to allow intensive extraction in the main storage zone of the fibers.
- the side suction chambers 11.1 and 11.3 could be operated at a lower negative pressure to include the ambient air at the top of the storage belt in the filing process.
- the suction device 9 form such that the upper box 13 is adjusted by a linear movement in the conveying direction of the storage belt.
- the spinning device has a spinning beam with a spinneret, which cooperates with a downstream exhaust nozzle to produce a spunbond nonwoven.
- the invention also extends to embodiments not shown here with additional exhaust nozzles.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Nonwoven Fabrics (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102011103662 | 2011-06-09 | ||
| PCT/EP2012/060338 WO2012168143A1 (de) | 2011-06-09 | 2012-06-01 | Vorrichtung zum erzeugen eines faserproduktes durch ablegen schmelzgesponnener fasern |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2718492A1 true EP2718492A1 (de) | 2014-04-16 |
| EP2718492B1 EP2718492B1 (de) | 2019-01-16 |
Family
ID=46208026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP12725396.1A Active EP2718492B1 (de) | 2011-06-09 | 2012-06-01 | Vorrichtung zum erzeugen eines faserproduktes durch ablegen schmelzgesponnener fasern |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US9085836B2 (de) |
| EP (1) | EP2718492B1 (de) |
| CN (1) | CN103608506B (de) |
| DK (1) | DK2718492T3 (de) |
| ES (1) | ES2720658T3 (de) |
| WO (1) | WO2012168143A1 (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013111364A1 (de) * | 2013-10-15 | 2015-04-16 | Reifenhäuser GmbH & Co. KG Maschinenfabrik | Ablagevorrichtung, insbesondere zur Ablage von Fasern |
| US10240257B2 (en) * | 2014-09-15 | 2019-03-26 | Clarcor Inc. | Systems and methods for controlled laydown of materials in a fiber production system |
| DE102016223571B4 (de) * | 2016-11-28 | 2020-08-13 | Adidas Ag | Herstellung von Vliesstoffen einschließlich einer Komponente |
| US12227880B2 (en) * | 2019-05-22 | 2025-02-18 | Yimao Environmental Technology Co., Ltd. | Centrifugal spinning apparatus and planar receiving-type centrifugal spinning automatic production device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3810596A1 (de) * | 1988-03-29 | 1989-10-12 | Bayer Ag | Feinstfasern aus polyphenylsulfid |
| JPH0369653A (ja) * | 1989-08-03 | 1991-03-26 | Toyobo Co Ltd | 連続長繊維不織布の製造法 |
| US6499982B2 (en) | 2000-12-28 | 2002-12-31 | Nordson Corporation | Air management system for the manufacture of nonwoven webs and laminates |
| JP2007031876A (ja) * | 2005-07-26 | 2007-02-08 | Tmt Machinery Inc | スパンボンド不織布の製造装置及び製造方法 |
| WO2010054943A1 (de) | 2008-11-13 | 2010-05-20 | Oerlikon Textile Gmbh & Co. Kg | Vorrichtung zum herstellen eines spinnvlieses |
| US8408889B2 (en) | 2009-01-14 | 2013-04-02 | Oerlikon Textile Gmbh & Co. Kg | Device for meltblowing |
-
2012
- 2012-06-01 WO PCT/EP2012/060338 patent/WO2012168143A1/de not_active Ceased
- 2012-06-01 ES ES12725396T patent/ES2720658T3/es active Active
- 2012-06-01 DK DK12725396.1T patent/DK2718492T3/en active
- 2012-06-01 CN CN201280028240.1A patent/CN103608506B/zh active Active
- 2012-06-01 EP EP12725396.1A patent/EP2718492B1/de active Active
-
2013
- 2013-11-04 US US14/071,034 patent/US9085836B2/en active Active
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2012168143A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103608506B (zh) | 2017-07-07 |
| US20140057011A1 (en) | 2014-02-27 |
| ES2720658T3 (es) | 2019-07-23 |
| EP2718492B1 (de) | 2019-01-16 |
| CN103608506A (zh) | 2014-02-26 |
| DK2718492T3 (en) | 2019-04-29 |
| WO2012168143A1 (de) | 2012-12-13 |
| US9085836B2 (en) | 2015-07-21 |
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