WO2005040467A1 - Streckwerk für spinnmaschinen - Google Patents
Streckwerk für spinnmaschinen Download PDFInfo
- Publication number
- WO2005040467A1 WO2005040467A1 PCT/EP2004/008022 EP2004008022W WO2005040467A1 WO 2005040467 A1 WO2005040467 A1 WO 2005040467A1 EP 2004008022 W EP2004008022 W EP 2004008022W WO 2005040467 A1 WO2005040467 A1 WO 2005040467A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- delivery roller
- fiber structure
- guide walls
- compression zone
- drafting system
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
- D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
- D01H5/70—Constructional features of drafting elements
- D01H5/72—Fibre-condensing guides
Definitions
- the invention relates to a drafting system for spinning machines with a driven delivery roller, to which two pressure rollers are assigned, which form two successive clamping lines with the delivery roller, between which the finished stretched fiber structure passes through a compression zone.
- a drafting arrangement of this type is state of the art due to AT patent 563/93.
- the delivery roller of the known drafting system has a perforated peripheral surface. Inside the delivery roller there is a suction zone, which is directed against the perforation with a suction slit. The finished stretched fiber structure is thus compressed between the two pressure rollers as a result of the targeted suction, so that there is an advantageous fiber bundling.
- the suction slot can be deflected sideways, so that an arcuate suction zone results.
- the invention is based on the object of compacting the finished stretched fiber structure with simpler structural means without the need for a suction roller and the suction devices required for this in a complex manner.
- the object is achieved in that guide walls guiding the fiber structure are provided in the compression zone.
- a completely normal, perforated delivery roller of a drafting system can be used, which expediently only needs to be slightly enlarged in diameter. All pneumatic additional devices can be dispensed with.
- the fully stretched fiber structure is mechanically guided between the two clamping lines in such a way that the fiber structure is compacted and the edge fibers are integrated.
- the distance between the two clamping lines of the pressure rollers should be smaller than the average length of the staple of the fibers to be spun.
- the guide walls can be designed very differently.
- a compressor is provided between the two pressure rollers, in which the guide walls are formed by a V-shaped guide groove. Due to the circumferential curvature of the delivery roller, the fiber structure to be compressed is drawn into the narrow groove base, so that compression takes place at this point. Since the compacted fiber structure then runs through a clamping line, no large spinning triangle is formed in the thread before the spinning twist is given.
- the guide walls can be formed by two compressors offset from one another in the axial direction of the delivery roller.
- the course of the fiber structure is thereby deflected laterally between the two clamping lines from the normal transport direction.
- a relative movement arises which, due to the friction, exerts a torsional moment on the fibers. This measure also allows edge fibers to be entwined with the actual fiber structure.
- the guide walls are expediently connected to tong-like holding parts which rest on the delivery roller.
- This can be designed, for example, in such a way that the holding parts are made of plastic, which is clipped onto the circumference of the delivery roller to the side next to the pressure rollers.
- the guide walls thus "ride" on the delivery roller, so to speak.
- additional compressors arranged outside the compression zone to be assigned in such a way that the fiber structure wraps around the delivery roller by approximately 180 °. While the actual guide walls are located in the compression zone between the pressure rollers, there is an additional compressor in front of the first clamping line and an additional compressor behind the second clamping line. It is advantageous to design the geometry of the second additional compressor so that the fiber structure can be pulled over its curvature when it leaves the delivery roller.
- the pressure rollers assigned to the delivery roller are wrapped in a strap which is in the Compression zone lies on the fiber structure without being clamped on the clamping lines.
- the strapping of the straps on the clamping lines can be avoided in a simple manner in that the straps are arranged somewhat recessed relative to the peripheral surface of the pressure rollers. It is only necessary to ensure that the strap between the clamping lines touches the fiber structure from above. As a result, a desired rotation occurring as a temporary false twist in the compression zone can be introduced into the fiber structure, which leads to an integration of the edge fibers.
- FIG. 1 shows a partially sectioned side view of the area of the delivery roller and the compression zone of a drafting system, the components shown in section being cut along the cutting surface l-l of FIG. 2,
- FIG. 2 shows a view of the drafting system according to the invention in the direction of arrow II in FIG. 1,
- FIG. 3 shows a view of the guide walls of the compression zone in the direction of arrow III in FIG. 1,
- FIG. 4 shows a view similar to FIG. 1 of another configuration of the compression zone of the drafting system
- FIG. 5 shows a view in the direction of arrow V in FIG. 4,
- FIG. 6 shows a view similar to FIG. 4 of another embodiment of the invention
- FIG. 7 shows a view in the direction of arrow VII of FIG. 6.
- the drafting device 1 which is only partially shown in FIGS. 1 to 3, belongs to a spinning machine, preferably a ring spinning machine.
- the drafting system 1 is only shown in the region of its driven delivery roller 2, which runs in the machine longitudinal direction, that is to say in the region of the drafting system output roller.
- Two pressure rollers 3 and 4 are pressed elastically against the delivery roller 2.
- the pressure rollers 3 and 4 are at a fixed distance from one another. They form a first nip line 5 with the delivery roller 2 and subsequently, after a circumferential path of approximately 45 ° to 90 °, a second nip line 6.
- the distance between the nip lines 5 and 6, between which there is no longer any delay, should be smaller than that Stack length of the fibers to be spun.
- the pressure rollers 3 and 4 can be combined with the corresponding pressure rollers of adjacent spinning stations in a known manner to form pressure roller twins.
- the axes 7 and 8 of the printing rollers 3 and 4 can be seen in FIG.
- the delivery roller 2 and the first pressure roller 3 are also assigned a pair of straps, which consist of a bottom strap 9 and an top strap 11.
- the guide table assigned to the lower apron 9 is designated by 10.
- a sliver or roving 12 to be drawn is passed through the drafting device 1 in the transport direction A. Behind the first clamping line 5 there is an already finished fiber structure 13 which is to be bundled in a compression zone 15 located between the two clamping lines 5 and 6. Edge fibers are to be wrapped around the fiber structure 13. From the second clamping line 6, the thread 14 is then formed, which is fed in the direction of delivery B to a swirl element, not shown, for example an annular spindle, which gives the thread 14 the required spin twist.
- a swirl element not shown, for example an annular spindle
- the compression zone 15 mentioned is formed between the two clamping lines 5 and 6 by guide walls 16. These guide the fiber structure 13 into the bottom of a V-shaped guide groove 18 of a compressor 17, see in particular also FIG. 3.
- the guide groove 18 is also tapered in the transport direction A.
- the fiber structure 13 is pressed into the bottom of the guide groove 18, as a result of which it densifies in the desired manner. A better substance utilization of the fibers is obtained, which goes hand in hand with increased tensile strength of the spun thread 14 and less hairiness.
- the compressor 17 containing the guide walls 16 is connected via two connecting webs 21 to pliers-like holding parts 19 and 20, which consist of plastic and are clipped onto the delivery roller 2 in such a way that they ride on the delivery roller 2.
- the compressor 17 can pull into the wedge gap between the delivery roller 2 and the second pressure roller 4, so that the guide walls 16 are secured in position in the transport direction A.
- the distance between the holding parts 19 and 20 in the axial direction of the delivery roller 2 is only slightly larger than the width of the pressure rollers 3 and 4.
- FIGS. 4 and 5 differs from the previously described embodiment essentially in that instead of the previously described guide walls 16, guide walls 22 and 23 are now provided in the compression zone 15, which are somewhat offset from one another in the axial direction of the delivery roller 2. As a result, the fiber structure 13 can be slightly deflected laterally from its normal transport direction A in the compression zone 15.
- the guide walls 22 and 23 are formed by a first compressor 24 and a second compressor 25.
- the first compressor 24 immediately follows the clamping line 5, while the second compressor 25 lies immediately in front of the second clamping line 6. Both compressors 24 and 25 thus lie within the compression zone 15 between the two clamping lines 5 and 6 of the two pressure rollers 3 and 4.
- a first additional compressor 26 to be provided in the transport direction A in front of the first clamping line 5 and a second additional compressor 27 after the second clamping line 6.
- the sliver or roving 12 runs between the guide surface of the first additional compressor 26 and the circumference of the delivery roller 2, while the thread 14 leaving the delivery roller 2 is located between the guide surface of the second additional compressor 27 and the peripheral surface of the delivery roller 2. This results in a wrap of the delivery roller 2 of approximately 180 °, it being advantageously provided that the thread 14 leaving the second additional compressor 27 passes over the Output curvature of this additional compressor 27 is pulled.
- the second additional compressor 27 acts as an additional swirl lock against the spin twist.
- the two compressors 24 and 25 and the two additional compressors 26 and 27 are connected to the pliers-like holding parts 19 and 20 already described via connecting webs 28, 29, 30 and 31.
- FIGS. 6 and 7 The embodiment according to FIGS. 6 and 7 is described below only insofar as it differs from the embodiment according to FIGS. 4 and 5. Reference can thus be made to the description of the previous exemplary embodiments.
- the pressure rollers 3 and 4 assigned to the delivery roller 2 are wrapped by a strap 32.
- the strap 32 is arranged such that it only runs over the compression zone 15 and is not clamped on the clamping lines 5 and 6. This can be achieved in that the pressure rollers 3 and 4 for the strap 32 are provided with a corresponding small circumferential groove in which the strap 32 runs.
- the apron 32 is so narrow that it can run in the transport direction A between the first compressor 24 and the second compressor 25.
- the apron 32 increases the pressure of the fiber structure 13 on the delivery roller 2 and ensures an even better compression in the compression zone 15.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04763318A EP1664402B1 (de) | 2003-09-24 | 2004-07-17 | Streckwerk für spinnmaschinen |
DE502004003902T DE502004003902D1 (de) | 2003-09-24 | 2004-07-17 | Streckwerk für spinnmaschinen |
CN2004800272443A CN1856601B (zh) | 2003-09-24 | 2004-07-17 | 用于纺织机的牵伸机构以及该牵伸机构用的压缩器 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10346258A DE10346258A1 (de) | 2003-09-24 | 2003-09-24 | Streckwerk für Spinnmaschinen |
DE10346258.9 | 2003-09-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005040467A1 true WO2005040467A1 (de) | 2005-05-06 |
Family
ID=34353332
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2004/008022 WO2005040467A1 (de) | 2003-09-24 | 2004-07-17 | Streckwerk für spinnmaschinen |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1664402B1 (de) |
CN (1) | CN1856601B (de) |
AT (1) | ATE363000T1 (de) |
DE (2) | DE10346258A1 (de) |
WO (1) | WO2005040467A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008190107A (ja) * | 2007-02-01 | 2008-08-21 | Mas Fab Rieter Ag | 集束領域を持つドラフト装置 |
JP2009097136A (ja) * | 2007-10-12 | 2009-05-07 | Mas Fab Rieter Ag | 繊維ストランドをドラフトするためのドラフト装置 |
EP3521488A1 (de) * | 2018-02-06 | 2019-08-07 | Maschinenfabrik Rieter AG | Verdichtereinheit |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007024234B4 (de) | 2007-05-21 | 2022-06-23 | Wilhelm Stahlecker Gmbh | Streckwerk zum Verziehen eines Faserverbandes |
DE102008011492A1 (de) * | 2008-02-20 | 2009-08-27 | Wilhelm Stahlecker Gmbh | Verdichter für eine Faserverdichtungseinrichtung und Pufferelement |
DE102008057668A1 (de) * | 2008-04-24 | 2009-10-29 | Wilhelm Stahlecker Gmbh | Verdichtereinheit für ein Streckwerk einer Textilmaschine |
CN101435121B (zh) * | 2008-12-11 | 2012-07-18 | 朱爱萍 | 带控纱的紧密纺纱器 |
CN101580982B (zh) * | 2009-06-18 | 2011-01-12 | 朱爱萍 | 机械式立体紧密纺纱装置 |
DE102012103610A1 (de) * | 2012-04-25 | 2013-10-31 | Rieter Ingolstadt Gmbh | Textilmaschine mit wengistens einer mehrere magnetische Bereiche aufweisenden Belastungswalze |
CN103469384A (zh) * | 2013-09-13 | 2013-12-25 | 常熟市建华织造有限责任公司 | 一种耐磨型紧密纺用网格圈 |
DE102015104808A1 (de) * | 2015-03-27 | 2016-09-29 | Maschinenfabrik Rieter Ag | Verdichtereinheit |
DE102018126844A1 (de) * | 2018-02-06 | 2019-08-08 | Maschinenfabrik Rieter Ag | Verdichtereinheit |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2450251A (en) * | 1945-04-13 | 1948-09-28 | Casablancas High Draft Co Ltd | Collector for textile drafting mechanisms |
GB691273A (en) * | 1950-11-15 | 1953-05-06 | Eric Cottam | Improvements in devices for condensing textile fibres in spinning or like machines |
US5577298A (en) * | 1994-03-17 | 1996-11-26 | Hollingsworth Saco Lowell, Inc. | Condenser and method of thread-up |
US5704096A (en) * | 1995-10-07 | 1998-01-06 | Fritz Stahlecker | Drafting arrangement for spinning machines |
US5915510A (en) * | 1997-07-17 | 1999-06-29 | Zinser Textilmaschinen Gmbh | Silver compactor in the stretching frame of a spinning machine |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4447969B4 (de) * | 1994-07-25 | 2006-06-22 | Maschinenfabrik Rieter Ag | Spinnmaschine mit Saugluftleitmitteln zur Faserverband-Kondensation |
-
2003
- 2003-09-24 DE DE10346258A patent/DE10346258A1/de not_active Withdrawn
-
2004
- 2004-07-17 EP EP04763318A patent/EP1664402B1/de not_active Not-in-force
- 2004-07-17 AT AT04763318T patent/ATE363000T1/de not_active IP Right Cessation
- 2004-07-17 DE DE502004003902T patent/DE502004003902D1/de active Active
- 2004-07-17 CN CN2004800272443A patent/CN1856601B/zh not_active Expired - Fee Related
- 2004-07-17 WO PCT/EP2004/008022 patent/WO2005040467A1/de active IP Right Grant
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2450251A (en) * | 1945-04-13 | 1948-09-28 | Casablancas High Draft Co Ltd | Collector for textile drafting mechanisms |
GB691273A (en) * | 1950-11-15 | 1953-05-06 | Eric Cottam | Improvements in devices for condensing textile fibres in spinning or like machines |
US5577298A (en) * | 1994-03-17 | 1996-11-26 | Hollingsworth Saco Lowell, Inc. | Condenser and method of thread-up |
US5704096A (en) * | 1995-10-07 | 1998-01-06 | Fritz Stahlecker | Drafting arrangement for spinning machines |
US5915510A (en) * | 1997-07-17 | 1999-06-29 | Zinser Textilmaschinen Gmbh | Silver compactor in the stretching frame of a spinning machine |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008190107A (ja) * | 2007-02-01 | 2008-08-21 | Mas Fab Rieter Ag | 集束領域を持つドラフト装置 |
JP2009097136A (ja) * | 2007-10-12 | 2009-05-07 | Mas Fab Rieter Ag | 繊維ストランドをドラフトするためのドラフト装置 |
EP3521488A1 (de) * | 2018-02-06 | 2019-08-07 | Maschinenfabrik Rieter AG | Verdichtereinheit |
Also Published As
Publication number | Publication date |
---|---|
DE10346258A1 (de) | 2005-04-21 |
DE502004003902D1 (de) | 2007-07-05 |
ATE363000T1 (de) | 2007-06-15 |
CN1856601B (zh) | 2010-09-01 |
EP1664402B1 (de) | 2007-05-23 |
EP1664402A1 (de) | 2006-06-07 |
CN1856601A (zh) | 2006-11-01 |
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