EP1660708B1 - Plaque a rainure-guide pour un dispositif de filature a rotor a bout libere - Google Patents
Plaque a rainure-guide pour un dispositif de filature a rotor a bout libere Download PDFInfo
- Publication number
- EP1660708B1 EP1660708B1 EP04739736A EP04739736A EP1660708B1 EP 1660708 B1 EP1660708 B1 EP 1660708B1 EP 04739736 A EP04739736 A EP 04739736A EP 04739736 A EP04739736 A EP 04739736A EP 1660708 B1 EP1660708 B1 EP 1660708B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- channel plate
- rotor
- spinning
- channel
- outlet opening
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000007383 open-end spinning Methods 0.000 title claims description 13
- 238000009987 spinning Methods 0.000 claims description 40
- 239000000835 fiber Substances 0.000 claims description 25
- 230000007704 transition Effects 0.000 claims 2
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 229920000728 polyester Polymers 0.000 description 7
- 230000008901 benefit Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000003685 thermal hair damage Effects 0.000 description 1
- 238000012549 training Methods 0.000 description 1
Images
Classifications
-
- 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
- D01H4/04—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 contact of fibres with a running surface
- D01H4/08—Rotor spinning, i.e. the running surface being provided by a rotor
-
- 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
- D01H4/38—Channels for feeding fibres to the yarn forming region
Definitions
- the invention relates to a channel plate for an open-end rotor spinning device according to the preamble of claim 1.
- Open-end rotor spinning devices with a forwardly open rotor housing, which is closed during the spinning operation by a so-called channel plate, are state of the art and described in detail in numerous patent applications.
- channel plates are known, which are integrated directly into a pivotally mounted cover element of the open-end rotor spinning device, as well as channel plates which can be screwed into the cover element. Furthermore, channel plates are known which have a central bearing receptacle in which a channel plate adapter is easily replaceable fixed.
- Modern open-end spinning devices have, for example, a fiber channel plate integrated into the cover element, which closes the rotor housing which can be pressurized with negative pressure during the spinning process with a lip seal.
- a feed roller and an opening roller for the sliver is also stored.
- Such a channel plate with a replaceable channel plate adapter is for example in the DE 197 29 192 A1 described in relative detail.
- the channel plate adapter consist essentially of an insert body, the contact surface is precisely matched to the shape and size of the central bearing receptacle in the fiber channel plate, as well as a channel plate tower, which projects into the spinning rotor with the spinning device closed.
- a locking projection is arranged on the back with a central bore in which a thread withdrawal tube is positioned.
- the central bore in the insert body of the channel plate adapter also penetrates the channel plate tower, on the end face of which a thread withdrawal nozzle is fixed, which engages in the central bore of the channel plate adapter.
- the channel plate tower also has, on its lateral surface, the outlet opening of a fiber guide channel, which pneumatically connects the sliver opening device arranged in the cover element to the spinning rotor.
- Such channel plate adapters are preferably tuned to a specific rotor shape and / or rotor size, so that an accurate sliver feed and an optimal thread take-off can be ensured under all production conditions.
- channel plate adapters have long been in use in practice and have been used in almost all Fiber materials and almost all yarn strengths proven excellent.
- the invention has for its object to modify the well-known and proven channel plates or channel plate adapter to the effect that an increase in the rotor speeds and thus an increase in production capacity of open-end rotor spinning devices, especially when spinning yarns with a relatively high polyester content is possible without the risk that the fibers are thermally damaged.
- the arrangement of the outlet opening of the Faserleitkanals at most in a cylindrical region of the lateral surface of the channel plate tower has the advantage that by such a modification of the channel plate tower, in particular by the reduction of the distance of the end face of the channel plate tower adjacent wall portion of the outlet opening of the Faserleitkanals to the central longitudinal axis of the channel plate, the opening angle between the fiber slipper surface of the spinning rotor and the front portion of the lateral surface of the channel plate tower is increased.
- both the thermal load of the open-end spinning device is lowered to an uncritical for polyester yarns measure, as well as an improved alignment of the individual fibers transporting air flow achieved.
- the acute-angled impact of the fibers on the sliding surface of the spinning rotor leads overall to a more gentle feeding of the fibers.
- the wall region of the outlet opening furthest away from the end face of the channel plate tower has a significantly greater distance from the central longitudinal axis of the channel plate.
- Modified channel plates even with yarns made of polyester or polyester blends, the speed of the spinning rotor and thus significantly increase the thread withdrawal speed, without causing thermal damage to the fibers occur.
- the number of yarn breaks occurring during the spinning process goes back when using the channel plate according to the invention by up to 30%.
- the channel plate is formed in two parts.
- the channel plate has a central bearing receptacle in which a channel plate adapter is exchangeable fixed.
- the channel plate adapter consists of an insert body, which is tuned in shape and size to the bearing receptacle of the channel plate, and a channel plate tower, which is formed as already explained above.
- the invention has proved to be particularly advantageous when the diameter of the arranged in the rotor cup of the spinning rotor rotor groove is less than 30 mm.
- open-end spinning device carries the total number 1.
- Such spinning devices 1 have, as is known, a rotor housing 2 in which the spinning cup 26 of a spinning rotor 3 rotates at high speed.
- the spinning rotor 3 is supported with its rotor shaft 4 in the bearing gusset of a preferably axially thrust-free support disk bearing 5.
- the spinning rotor 3 is driven by a machine-tangential belt 6, which is employed by a pressure roller 7 to the rotor shaft 4.
- the axial positioning of the rotor shaft 4 in the bearing gusset of the support disk bearing 5 preferably takes place via a permanent magnetic thrust bearing 18.
- the rotor housing 2 which in itself is open towards the front, is closed by a pivotally mounted cover element 8 during the spinning operation.
- the cover element 8 has for this purpose a channel plate 27 with a seal 9.
- the rotor housing 2 is also connected via a suction line 10 to a vacuum source 11, which generates the necessary spin pressure in the rotor housing 2.
- a channel plate adapter 12 is interchangeably arranged in a central bearing receptacle 34 of the channel plate 27 which, as in, for example, FIG Figure 3 shown on a larger scale, consisting essentially of an insert body 28 with a contact surface 37 and a channel plate tower 30.
- the outlet opening 31 of a Faserleitkanals 14 is arranged.
- cross-sectional area of the cylindrical portion does not have to be circular.
- a lateral surface portion having parallel generatrices is understood according to mathematical definition, a lateral surface portion having parallel generatrices.
- the channel plate tower 30 has a central through-bore 38, in which a yarn withdrawal nozzle 13 on the input side and a yarn withdrawal tube 15 on the output side are fixed.
- an opening roller housing 17 is fixed or integrated into the cover element on the cover element 8, which is mounted so as to be limited rotatably about a pivot axis 16.
- the cover element 8 further has rear bearing brackets 19, 20 for supporting an opening roller 21 or a sliver feed cylinder 22.
- the opening roller 21 is thereby driven in the area of its whorl 23 by a rotating, machine-long tangential belt 24, while the drive (not shown) of the sliver feed cylinder 22 preferably via a worm gear arrangement, which is connected to a machine-length drive shaft 25.
- FIG. 2 shows on a larger scale a channel plate 27 for closing the motor housing 2 of an open-end spinning device. 1
- the channel plate 27 has an inventively modified channel plate tower 30, which is positioned with the rotor housing 2 closed within the rotor cup 26 of a spinning rotor 3.
- the channel plate tower 30 has the front side, in a through-bore 38, a thread withdrawal nozzle 13, which is non-positively lockable via permanent magnet pins 39. On the output side, a thread withdrawal tube 15 is fixed in the through hole 38.
- an outlet opening 31 of a Faserleitkanals 14 is arranged, which connects the sliver disassembly device pneumatically with the rotor housing.
- the outlet opening 31 of the Faserleitkanales 14 is in the spinning position, that is, with a closed rotor housing 2, a fiber slipper surface 40 of the spinning rotor 3 in such a way that the emerging from the fiber guide 14 fibers are fed to the Faserlois Chemistry 40 at a relatively acute angle.
- the fed fibers then pass through the fiber slide surface 40 into the rotor groove 41 of the spinning rotor 3, where, as is known, the formation of a thread takes place, which is then removed via the tube 15.
- the diameter of the rotor groove 41 in the rotor cup 26 of the spinning rotor 3 is preferably less than 30 mm.
- channel plate 27 and a modified according to the invention channel plate adapter 12 of the channel plate tower 30 compared to the usual channel plate adapters, which in the FIGS. 4 and 6 are shown, formed so that in particular of the end face 42 of the channel plate tower 30 adjacent wall portion 32 of the outlet opening 31 is lowered relative to the lying behind the outlet opening 31 wall portion 33.
- the channel plate tower 30 is formed so that in particular a cylindrical Mantelfambaenabêt 50 has a distance b from the central longitudinal axis M of the channel plate 27, while the distance a in the rear wall portion 33 remains unchanged.
- This measure leads, in particular a comparison of the FIGS. 4 . 6 with the Figures 5 . 7 shows, to a significant enlargement of the outlet opening 31 of the fiber guide 14 in the direction of the spinning rotor. 3
- FIGS. 4 and 6 a channel plate adapter 12 with known channel plate tower is shown in side view and in plan view, while the Figures 5 and 7 a channel plate adapter 12 with an inventively modified channel plate tower 30 show.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Claims (3)
- Plaque à rainure-guide équipant un dispositif de filature à rotor à fibres libérées, conçue pour obturer un carter rotorique qui peut être sollicité par une dépression au cours du processus de filage, et dans lequel un rotor de filage accomplit une révolution, comportant un embout (30) s'engageant dans ledit rotor de filage, embout dans la surface périphérique duquel est pratiqué l'orifice de sortie (31) d'un canal guide-fibres (14), et dans la face extrême duquel une buse (13) d'extraction de fil peut être bloquée à demeure, sachant qu'une surface de transition (60) à bombement concave se rattache à une partie cylindrique de la surface périphérique (50), et que l'embout (30) de la plaque à rainure-guide possède, à la hauteur du bord du rotor de filage (3), un diamètre propre à réserver au cours du processus de filage, entre ledit rotor de filage (3) et ledit embout (30) de ladite plaque à rainure-guide, un interstice annulaire d'une largeur maximale de 2 mm, caractérisée par le fait
que l'orifice de sortie (31) du canal guide-fibres (14) est disposé, au maximum pour moitié, dans la région de la surface périphérique cylindrique (50) et, par sa partie restante, dans la région de la surface bombée de transition (60) ; et
par le fait que la zone de paroi (33) dudit orifice de sortie (31) qui est la plus éloignée de la face extrême (42) présente, vis-à-vis de l'axe médian longitudinal (M) de la plaque (27) à rainure-guide, une distance (a) excédant, d'au moins 0,5 à 3 mm, la distance (b) que présente, vis-à-vis dudit axe médian longitudinal (M), la zone de paroi (32) dudit orifice de sortie (31) qui occupe une position voisine de ladite face extrême (42). - Plaque à rainure-guide selon la revendication 1, caractérisée par le fait que ladite plaque (27) à rainure-guide est réalisée en deux parties, et offre un logement central de portée (34) dans lequel peut être verrouillé un adaptateur interchangeable (12) de plaques à rainures-guides qui comprend un corps d'insertion (28), coordonné avec ledit logement de portée (34), ainsi qu'un embout (30) pénétrant dans le pot de filage (26) du rotor de filage (3).
- Plaque à rainure-guide selon la revendication 1, caractérisée par le fait qu'elle est dimensionnée de manière à être appropriée pour des rotors de filage (3) possédant une gorge rotorique (41) d'un diamètre de 30 mm, au maximum.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10339875A DE10339875A1 (de) | 2003-08-29 | 2003-08-29 | Kanalplatte für eine Offenend-Rotorspinnvorrichtung |
PCT/EP2004/006228 WO2005031050A1 (fr) | 2003-08-29 | 2004-06-09 | Plaque a rainure-guide pour un dispositif de filature a rotor a bout libere |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1660708A1 EP1660708A1 (fr) | 2006-05-31 |
EP1660708B1 true EP1660708B1 (fr) | 2010-08-25 |
Family
ID=34202209
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04739736A Expired - Lifetime EP1660708B1 (fr) | 2003-08-29 | 2004-06-09 | Plaque a rainure-guide pour un dispositif de filature a rotor a bout libere |
Country Status (6)
Country | Link |
---|---|
US (1) | US7181901B2 (fr) |
EP (1) | EP1660708B1 (fr) |
CN (1) | CN100469959C (fr) |
BR (1) | BRPI0413806B1 (fr) |
DE (2) | DE10339875A1 (fr) |
WO (1) | WO2005031050A1 (fr) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7749471B2 (en) * | 2004-11-30 | 2010-07-06 | Chevron U.S.A. Inc. | Reduction of oxides of nitrogen in a gas stream using boron-containing molecular sieve CHA |
DE102008050071A1 (de) * | 2008-10-01 | 2010-04-08 | Oerlikon Textile Gmbh & Co. Kg | Offenend-Rotorspinnvorrichtung |
DE102009012045A1 (de) * | 2009-03-06 | 2010-09-09 | Oerlikon Textile Gmbh & Co. Kg | Offenend-Rotorspinnvorrichtung |
CN102704062A (zh) * | 2012-06-21 | 2012-10-03 | 河北金纺机械制造有限公司 | 可生产低捻度蓬松纱的抽气式转杯纺纱机 |
CZ2012591A3 (cs) * | 2012-08-30 | 2014-03-12 | Rieter Cz S.R.O. | Spřádací ústrojí rotorového dopřádacího stroje |
DE102017118390A1 (de) * | 2017-08-11 | 2019-02-14 | Saurer Spinning Solutions Gmbh & Co. Kg | Offenend-Spinneinrichtung |
CN109355751B (zh) * | 2018-09-28 | 2020-07-10 | 绍兴文理学院 | 一种基于接触热辊的高强耐磨喷气涡流纺纱线的加工方法 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3636182C2 (de) * | 1986-10-24 | 1995-10-12 | Schlafhorst & Co W | Spinnaggregat einer OE-Rotorspinnmaschine |
DE3704460C2 (de) * | 1987-02-13 | 1993-11-18 | Fritz Stahlecker | Vorrichtung zum OE-Rotorspinnen |
JPH07122172B2 (ja) | 1987-07-31 | 1995-12-25 | 株式会社豊田中央研究所 | オ−プンエンド精紡機の紡糸ユニット |
DE59307333D1 (de) | 1992-07-01 | 1997-10-16 | Rieter Ingolstadt Spinnerei | Verfahren und vorrichtung zum offenend-spinnen |
DE4334485A1 (de) * | 1993-10-09 | 1995-04-13 | Schlafhorst & Co W | Offenend-Spinnvorrichtung |
US5749216A (en) * | 1997-03-14 | 1998-05-12 | Spindelfabrik Suessen, Schurr, Stahlecker & Grill Gmbh | Open end spinning apparatus |
DE19729192A1 (de) | 1997-07-09 | 1999-01-14 | Schlafhorst & Co W | Offenend-Spinnvorrichtung mit auswechselbarem Kanalplattenadapter |
DE10160067A1 (de) * | 2001-12-06 | 2003-06-18 | Schlafhorst & Co W | Verfahren und Vorrichtung zum Verspinnen textiler Stapelfasern mittels eines Spinnrotors |
-
2003
- 2003-08-29 DE DE10339875A patent/DE10339875A1/de not_active Withdrawn
-
2004
- 2004-06-09 DE DE502004011586T patent/DE502004011586D1/de not_active Expired - Lifetime
- 2004-06-09 BR BRPI0413806-6A patent/BRPI0413806B1/pt not_active IP Right Cessation
- 2004-06-09 WO PCT/EP2004/006228 patent/WO2005031050A1/fr active Application Filing
- 2004-06-09 US US10/567,994 patent/US7181901B2/en not_active Expired - Lifetime
- 2004-06-09 EP EP04739736A patent/EP1660708B1/fr not_active Expired - Lifetime
- 2004-06-09 CN CNB2004800248514A patent/CN100469959C/zh not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE10339875A1 (de) | 2005-03-24 |
BRPI0413806B1 (pt) | 2014-09-23 |
US20060225401A1 (en) | 2006-10-12 |
BRPI0413806A (pt) | 2006-10-17 |
CN1846021A (zh) | 2006-10-11 |
WO2005031050A1 (fr) | 2005-04-07 |
CN100469959C (zh) | 2009-03-18 |
US7181901B2 (en) | 2007-02-27 |
EP1660708A1 (fr) | 2006-05-31 |
DE502004011586D1 (de) | 2010-10-07 |
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