EP1284312A2 - Vorrichtung zur Herstellung eines gesponnenen Garnes - Google Patents
Vorrichtung zur Herstellung eines gesponnenen Garnes Download PDFInfo
- Publication number
- EP1284312A2 EP1284312A2 EP02014499A EP02014499A EP1284312A2 EP 1284312 A2 EP1284312 A2 EP 1284312A2 EP 02014499 A EP02014499 A EP 02014499A EP 02014499 A EP02014499 A EP 02014499A EP 1284312 A2 EP1284312 A2 EP 1284312A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- channel
- vortex chamber
- downstream
- wall
- vortex
- 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
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Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
- D01H1/11—Spinning by false-twisting
- D01H1/115—Spinning by false-twisting using pneumatic means
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
- D01H4/02—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques imparting twist by a fluid, e.g. air vortex
Definitions
- the invention relates to a device according to the preamble of the independent Claim.
- the device is used to produce a spun yarn a loose fiber structure fed to the device, the fiber structure being passed through a vortex chamber is drawn in which the fibers of a vortex flow of a fluid exposed and thereby spun into a yarn.
- Spinning devices of the type mentioned above are known for example from the Publications US-5528895 or US-5647197 (both Murata). These devices have a fiber feed channel and a yarn take-off channel, the Output area of the fiber feed channel essentially against the Input area of the yarn take-off channel is directed and the exit opening of the Fiber feed channel at a distance from the inlet opening of the yarn take-off channel is arranged. The vortex flow is generated in the area of this distance. in the Areas of the exit opening of the fiber feed channel is also a Twist stopper (e.g. eccentric edge over which the fibers are drawn, or in the essentially concentric pin around which the fibers are guided).
- Twist stopper e.g. eccentric edge over which the fibers are drawn, or in the essentially concentric pin around which the fibers are guided.
- the entrance area of the yarn discharge channel usually has the shape of a slim one Spindle, around which a drain channel with a substantially annular Cross section runs.
- the drain channel leads from the one equipped as a swirl chamber Cavity between the fiber feed channel and yarn take-off channel and runs in essentially parallel to the yarn take-off channel.
- the swirl chamber has an im is essentially the same diameter as the inlet area of the drain channel and with nozzles directed tangentially into the chamber for blowing in a fluid (e.g. air) equipped.
- the fluid blown into the swirl chamber passes through the drain channel aspirated, the vortex flow generated in the vortex chamber around the Thread take-off channel (spindle) continues into the drain channel.
- the vortex chamber and an inlet area of the drainage duct essentially represents one is a functional unit that is used to grant rotation.
- the yarn take-off channel too optionally arranged rotating, can contribute to the rotation, whereby then using various means to ensure that the fibers against the Pressed outside of the yarn take-off channel and thus better carried become.
- the cross sections of the fiber feed channel, yarn take-off channel and drain channel are small compared to the average length of the fibers to be processed.
- the length of the Fiber feed channel is designed such that at least some of the fibers, the leading end has already reached the area of the yarn take-off channel, in the Entrance area of the fiber feed channel is still kept (e.g. between Delivery rolls of a drafting system upstream of the fiber feed channel).
- Fibers which are fed to a device as briefly described above are held on the one hand in the fiber structure and from the exit opening of the Fiber feed channel substantially without giving rotation in the Thread take-off duct led.
- the fibers are in the area between Fiber feed channel and yarn take-off channel of the centrifugal effect of the Eddy flow exposed through which it from the entrance opening of the Thread take-off channel are driven radially away.
- the one with the described procedure produced yarns show a core of essentially in Yarn longitudinal fibers or fiber areas without essential Rotation and an outer area in which the fibers or fiber areas around the Core turned around.
- this yarn structure comes about through the fact that leading ends of fibers, especially fibers, the trailing ends Areas still held upstream from the fiber feed channel essentially directly into the yarn take-off channel, but that trailing Fiber areas, especially if they are in the entrance area of the Fiber feed channel can no longer be held by the vortex effect from the The fiber dressing is pulled and then twisted around the resulting yarn. It can also occur that leading ends of fibers are characterized by the vortex effect the fiber structure can be spread while the trailing end in the central The area of the fiber structure remains, resulting in the corresponding yarns observed loops leads.
- fibers are in the emerging yarn at the same time involved, whereby they are pulled into the yarn take-off channel, as well as the Eddy flow exposed to it centrifugally, i.e. from the entrance opening of the Accelerated yarn take-off channel away and pulls into the drain channel.
- the through the Vortex flow of fiber areas drawn from the fiber structure form one into the Inlet opening of the yarn take-off channel opening fiber swirl, the longer one Shares spiral outwards around the spindle-shaped entrance area of the Thread take-off channel wind and in this spiral against the force of the current in the
- the drain channel is pulled against the inlet opening of the yarn take-off channel. Fibers, of which neither the leading nor the trailing end in the emerging yarn is drawn in with a probability that with smaller fiber length becomes larger, led away through the drainage channel and placed thereby undesirable fiber loss.
- the known spinning process described is characterized in that it is very high spinning speeds allowed (up to ten times higher spinning speeds than for ring spinning processes). On the other hand, it turns out to be difficult with the procedure to avoid a high fiber loss and one for a high yarn quality to obtain a sufficiently high proportion of fibers in the twisted outer area of the yarn.
- the invention therefore has as its object a device for spinning To create vortex flow with which device it should be possible
- the yarn quality should be at least the same height.
- the invention is based on the idea that the swirl chamber and the drainage channel are functional to separate in such a way that the fiber swirl does not freely flow downstream into the Discharge channel can continue, but on the swirl chamber, that is, on one of the Drainage duct remains functionally separate.
- This idea is realized in that the vortex chamber is delimited downstream by a wall and that the fluid is completely drained through this wall into the drain channel becomes.
- the Arranged opening of the yarn take-off channel At the center of this wall that delimits the vortex chamber downstream is the Arranged opening of the yarn take-off channel.
- the the swirl chamber downstream wall has no rotation-imparting function, that is, it does not rotate.
- Inlet opening of the yarn take-off channel distributed in the drain channel or in Drainage openings opening provided that also form an annular Opening can be summarized.
- FIG. 1 shows the swirl chamber area of a device according to the prior art, with which a loose fiber structure 2 fed through a fiber feed channel 1 is given a rotation in a swirl chamber 3, so that a spun yarn 4 is produced, which is drawn off through a yarn withdrawal channel 5 ,
- the vortex flow is generated in the vortex chamber 3 by blowing in a fluid, for example air, through nozzles 6 opening tangentially into the chamber.
- the fluid is discharged through a drain channel 7, the drain channel 7 having an annular cross section arranged around the yarn take-off channel 5 and its entrance area having essentially the same diameter as the vortex chamber 3, so that the vortex flow generated in the vortex chamber continues into the drain channel and Fiber areas 8 detached from the fiber structure by the centrifugal effect of the vortex flow lie in the discharge channel in a spiral shape around the spindle-shaped entry area of the yarn take-off channel 5.
- the vortex chamber 3 and the inlet area of the drain channel 7 represent a functional unit, so that fibers that are not incorporated into the yarn being created are highly likely to be flushed into the drain channel by the fluid and are therefore lost to the yarn produced.
- FIG. Embodiment arranged as a twist stop means an edge 10 which is eccentric to Garnabzugkanal 5 is arranged. It is also known as a swirl stopper Needle (pin) arranged concentrically to the yarn take-off channel, which needle represents a temporary yarn core.
- a swirl stopper Needle pin
- FIG. 2 shows a first exemplary embodiment of the device according to the invention.
- the swirl chamber area is shown in section, i.e. the exit area of the fiber feed channel 1 with exit opening 9 and twist stop means 10 and the entrance area of the yarn take-off channel 5 with entry opening 11, as well as swirl chamber 3 and discharge channel 7, which, as in FIG has an essentially annular cross section.
- a circular disk-shaped wall plate 20 arranged, which carries the input opening 11 of the yarn withdrawal channel 5 and around this inlet opening 11 distributes a plurality of openings 21 through which the fluid reaches the drainage channel 7 from the swirl chamber 3.
- the Drain channel 7 with an annular cross section can also be replaced by a plurality of discharge channels aligned with the openings 21.
- the fiber swirl is therefore limited to Vortex chamber 3 and the bound fibers are not able to bind fibers better to keep in the swirling fiber structure.
- FIG. 3 shows a top view (viewing direction A in FIG. 2) of the wall plate 20, which closes the vortex chamber 3 of FIG. 2 downstream against the discharge channel 7.
- the direction of the vortex is indicated by the arrows F.
- the openings 21 penetrate the wall plate 20 obliquely in such a way that the swirling fluid can flow into the discharge channel without a large change in direction and turbulence generated thereby.
- the wall plate 20 shown plane-parallel in FIGS. 2 and 3 can also have the shape of a preferably blunt cone, the input opening 11 the Garnabzugkanal is arranged on the log of the cone.
- FIGS. 4 and 5 show in the same way as Figures 2 and 3 a further exemplary embodiment of the device according to the invention. The same parts are designated with the same reference numerals as in FIGS. 2 and 3.
- FIG. 4 and 5 differs in the design the wall plate 20, the openings 21 of which are slots arranged on the circumference.
- the Drain channel 7 is again shown with an annular cross section, but could also have another shape that suitably adjoins the slot-shaped openings.
- FIGS. 6 and 7 show, in the same manner of illustration as FIGS. 2 and 4, two further exemplary embodiments of the device according to the invention.
- a central part of the wall delimiting the swirl chamber downstream is formed by the end face 30 of the yarn take-off channel 5 on the input side.
- a peripheral part adjoins this central part, the openings being arranged in the peripheral part (FIG. 6) or between the central and peripheral part (FIG. 7).
- FIG. 6 shows an embodiment in which the swirl chamber 3 does not extend essentially flat and perpendicular to the axis of the yarn take-off channel 5, as shown in FIGS. 2 and 4, but is conical.
- the central part of the wall delimiting the vortex chamber 3 downstream forms the wall input-side end face 30 of the yarn take-off channel 5.
- One at the central part adjoining, peripheral part of this wall forms a perforated ring 31
- the drain channel 7 can function, for example, through the device surrounding airspace.
- FIG. 7 shows an embodiment in which the wall delimiting the swirl chamber 3 downstream is again formed by the front face 30 of the yarn take-off channel 5 and a peripheral ring.
- the openings 21 to the drain channel 7 together form a single, annular opening which is arranged between the central and peripheral wall part.
- the annular opening is as narrow as possible and as close as possible possible at the inlet opening 11 of the yarn withdrawal channel 5.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
Description
- Figur 1
- den Ausgangsbereich des Faserzuführungskanals und den Eingangsbereich des Garnabzugkanals (Wirbelkammerbereich) einer bekannten Vorrichtung zur Herstellung eines gesponnenen Garnes aus einem losen Faserverband mittels Wirbelströmung (Schnitt);
- Figur 2
- den ebenfalls geschnitten dargestellten Wirbelkammerbereich einer beispielhaften Ausführungsform der erfindungsgemässen Vorrichtung;
- Figur 3
- die die Wirbelkammer gemäss Figur 2 stromabwärts begrenzende Wandplatte als Draufsicht (A-A in Figur 2);
- Figur 4
- eine weitere Ausführungsform der erfindungsgemässen Vorrichtung (Darstellungsweise wie Figur 2);
- Figur 5
- die die Wirbelkammer gemäss Figur 4 stromabwärts begrenzende Wandplatte als Draufsicht (B-B in Figur 4);
- Figuren 6 und 7
- den geschnittenen Wirbelkammerbereich von zwei weiteren Ausführungsformen der erfindungsgemässen Vorrichtung.
Wirbelkammer 3 und Eingangsbereich des Ablasskanals 7 stellen eine funktionsmässige Einheit dar, so dass Fasern, die nicht in das entstehende Garn eingebunden werden, mit hoher Wahrscheinlichkeit durch das Fluid in den Ablasskanal gespült werden und dadurch für das entstehende Garn verloren gehen.
Claims (11)
- Vorrichtung zur Herstellung eines gesponnenen Garnes (4) aus einem losen Faserverband (2) mit Hilfe einer Wirbelströmung, die als einziges, drehungserteilendes Mittel wirkt, wobei die Vorrichtung einen Faserzuführungskanal (1) mit einer Ausgangsöffnung (9) und einen Garnabzugkanal (5) mit einer von der genannten Ausgangsöffnung (9) beabstandeten Eingangsöffnung (11) aufweist sowie ein Mittel zur Erzeugung einer Wirbelströmung in einer Wirbelkammer (3), die im wesentlichen zwischen der genannten Ausgangsöffnung (9) und der genannten Eingangsöffnung (11) angeordnet ist, welches Mittel Düsen (6) zum Einblasen eines Fluids in die Wirbelkammer (3) und zur Erzeugung der Wirbelströmung in der Wirbelkammer (3) und einen Ablasskanal (7) zur Wegführung des Fluids aus der Wirbelkammer (3) aufweist, dadurch gekennzeichnet, dass die Vorrichtung eine die Wirbelkammer (3) stromabwärts begrenzende Wand aufweist, die die Wirbelkammer (3) vom Ablasskanal (7) trennt, in deren Zentrum die genannte Eingangsöffnung (11) angeordnet ist und die zur vollständigen Wegführung des Fluids eine Mehrzahl von Öffnungen (21) in den Ablasskanal (7) aufweist.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die die Wirbelkammer (3) stromabwärts begrenzende Wand senkrecht zur Achse des Garnabzugkanals ausgerichtet ist.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die die Wirbelkammer (3) stromabwärts begrenzende Wand die Form eines stumpfen Kegels hat, an dessen Spitze die genannte Eingangsöffnung (11) angeordnet ist.
- Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die die Wirbelkammer (3) stromabwärts begrenzende Wand eine reibungsreduzierende Oberflächenstruktur aufweist.
- Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die die Wirbelkammer (3) stromabwärts begrenzende Wand durch eine Wandplatte (20) gebildet wird.
- Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass die Wandplatte (20) zur Wegführung des Fluids eine Mehrzahl von Öffnungen (21) aufweist, die in Richtung der Wirbelströmung schief durch die Wandplatte (20) verlaufen.
- Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass die Wandplatte (20) zur Wegführung des Fluids an ihrem Umfang eine Mehrzahl von schlitzförmigen Öffnungen (21) aufweist.
- Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, dass die schlitzförmigen Öffnungen (21) in Richtung der Wirbelströmung schief durch die Wandplatte (20) verlaufen.
- Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass ein zentraler Teil der die Wirbelkammer (3) stromabwärts begrenzenden Wand durch eine eingangsseitige Stirnseite (30) des Garnabzugkanals (5) gebildet wird.
- Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, dass ein peripherer Teil der die Wirbelkammer (3) stromabwärts begrenzenden Wand durch einen perforierten Ring (31) gebildet wird.
- Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, dass zwischen dem zentralen Teil der die Wirbelkammer (3) stromabwärts begrenzenden Wand und einem peripheren Teil dieser Wand eine ringförmige Öffnung in den Ablasskanal (7) vorgesehen ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH15192001 | 2001-08-17 | ||
CH15192001 | 2001-08-17 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1284312A2 true EP1284312A2 (de) | 2003-02-19 |
EP1284312A3 EP1284312A3 (de) | 2003-07-16 |
EP1284312B1 EP1284312B1 (de) | 2005-09-14 |
Family
ID=4565535
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02014499A Expired - Lifetime EP1284312B1 (de) | 2001-08-17 | 2002-06-29 | Vorrichtung zur Herstellung eines gesponnenen Garnes |
Country Status (6)
Country | Link |
---|---|
US (1) | US6789382B2 (de) |
EP (1) | EP1284312B1 (de) |
JP (1) | JP2003082537A (de) |
CN (1) | CN100335694C (de) |
AT (1) | ATE304620T1 (de) |
DE (1) | DE50204235D1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2369043A3 (de) * | 2010-03-25 | 2015-03-25 | Murata Machinery, Ltd. | Druckluftspinnvorrichtung und Spinnmaschine |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1564886A (zh) * | 2001-08-08 | 2005-01-12 | 里特机械公司 | 生产纺成纱线的一种装置 |
CN102471950B (zh) * | 2009-07-16 | 2015-02-11 | 里特机械公司 | 气流纺纱装置 |
DE102012108613A1 (de) * | 2012-09-14 | 2014-03-20 | Maschinenfabrik Rieter Ag | Spinnstelle einer Vorspinnmaschine |
CN103103642A (zh) * | 2013-02-22 | 2013-05-15 | 东华大学 | 一种取向静电纺纳米纤维涡流纺成纱装置及方法 |
TWI602961B (zh) * | 2015-12-14 | 2017-10-21 | 財團法人紡織產業綜合研究所 | 纖維的製造方法及用以製造纖維的紡絲設備 |
ITUA20163011A1 (it) * | 2016-04-29 | 2017-10-29 | Savio Macch Tessili Spa | Dispositivo di filatura di tipo air-jet |
DE102020108257A1 (de) * | 2020-03-25 | 2021-09-30 | Saurer Spinning Solutions Gmbh & Co. Kg | Vorrichtung zur Faservereinzelung und Spinneinrichtung umfassend eine solche Vorrichtung |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4073129A (en) * | 1976-03-10 | 1978-02-14 | Centralny Osrodek Badawczo-Rozwojowy Maszyn Wlokienniczych | Method and apparatus for manufacture of yarn |
US5159806A (en) * | 1989-11-14 | 1992-11-03 | Murata Kikai Kabushiki Kaisha | Apparatus for producing spun yarns |
US5528895A (en) * | 1993-09-08 | 1996-06-25 | Murata Kikai Kabushiki Kaisha | Spinning apparatus with twisting guide surface |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH679587A5 (de) * | 1989-08-25 | 1992-03-13 | Rieter Ag Maschf | |
US5330338A (en) * | 1992-02-17 | 1994-07-19 | Toyo Boseki Kabushiki Kaisha | Apparatus for spinning of polyurethane elastic filaments |
JPH07122167B2 (ja) * | 1992-03-16 | 1995-12-25 | 村田機械株式会社 | 紡績装置の糸継ぎ方法 |
JP2708000B2 (ja) * | 1995-02-10 | 1998-02-04 | 村田機械株式会社 | 紡績装置 |
EP0990719B1 (de) * | 1998-10-02 | 2003-05-28 | W. SCHLAFHORST AG & CO. | Spinnvorrichtung |
-
2002
- 2002-06-29 DE DE50204235T patent/DE50204235D1/de not_active Expired - Fee Related
- 2002-06-29 AT AT02014499T patent/ATE304620T1/de not_active IP Right Cessation
- 2002-06-29 EP EP02014499A patent/EP1284312B1/de not_active Expired - Lifetime
- 2002-07-24 US US10/201,611 patent/US6789382B2/en not_active Expired - Fee Related
- 2002-08-16 CN CNB02130338XA patent/CN100335694C/zh not_active Expired - Fee Related
- 2002-08-19 JP JP2002238582A patent/JP2003082537A/ja active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4073129A (en) * | 1976-03-10 | 1978-02-14 | Centralny Osrodek Badawczo-Rozwojowy Maszyn Wlokienniczych | Method and apparatus for manufacture of yarn |
US5159806A (en) * | 1989-11-14 | 1992-11-03 | Murata Kikai Kabushiki Kaisha | Apparatus for producing spun yarns |
US5528895A (en) * | 1993-09-08 | 1996-06-25 | Murata Kikai Kabushiki Kaisha | Spinning apparatus with twisting guide surface |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2369043A3 (de) * | 2010-03-25 | 2015-03-25 | Murata Machinery, Ltd. | Druckluftspinnvorrichtung und Spinnmaschine |
CN104532418A (zh) * | 2010-03-25 | 2015-04-22 | 村田机械株式会社 | 气流纺纱装置及纺纱机 |
Also Published As
Publication number | Publication date |
---|---|
DE50204235D1 (de) | 2005-10-20 |
CN1407152A (zh) | 2003-04-02 |
EP1284312B1 (de) | 2005-09-14 |
CN100335694C (zh) | 2007-09-05 |
ATE304620T1 (de) | 2005-09-15 |
US20030115850A1 (en) | 2003-06-26 |
EP1284312A3 (de) | 2003-07-16 |
JP2003082537A (ja) | 2003-03-19 |
US6789382B2 (en) | 2004-09-14 |
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