WO2006042686A1 - Verfahren zum vorbereiten eines ansetzvorganges an einer luftdüsenspinnvorrichtung - Google Patents
Verfahren zum vorbereiten eines ansetzvorganges an einer luftdüsenspinnvorrichtung Download PDFInfo
- Publication number
- WO2006042686A1 WO2006042686A1 PCT/EP2005/010995 EP2005010995W WO2006042686A1 WO 2006042686 A1 WO2006042686 A1 WO 2006042686A1 EP 2005010995 W EP2005010995 W EP 2005010995W WO 2006042686 A1 WO2006042686 A1 WO 2006042686A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pair
- staple fiber
- delivery
- fiber strand
- preparing
- Prior art date
Links
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
- D01H15/00—Piecing arrangements ; Automatic end-finding, e.g. by suction and reverse package rotation; Devices for temporarily storing yarn during piecing
- D01H15/002—Piecing arrangements ; Automatic end-finding, e.g. by suction and reverse package rotation; Devices for temporarily storing yarn during piecing for false-twisting spinning machines
-
- 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 method for preparing a piecing process on an air jet spinning device, which includes a drafting system, whose main drafting zone is bounded on the inlet side by a Riemchenwalzencru which is connected to a first drive, and the outlet side of a delivery roller pair which is connected to a second drive, wherein in the main draft zone after an interruption of the spinning process, the supply of a closed staple fiber strand interrupted and a new beginning of the staple fiber strand to be applied to one end of an already spun yarn, characterized in that atmann secureddem pair of delivery rollers the Riemchenwalzencruwhere is stopped.
- a method of this kind is known from US Pat. No. 5,809,764.
- This document discloses, inter alia, a variant in which after a thread break the Riemchenwalzencru is stopped immediately, so that no more staple fiber is more supplied to the delivery roller pair, while the pair of delivery rollers continues to run.
- the supply of a closed staple fiber strand in the main draft zone is inevitably interrupted.
- the separation point of the staple fiber strand is considered not suitable for a piecing process, it is additionally provided for preparing a piecing process that after a stoppage of the apron roll pair, when the pair of feed rolls continue, a new beginning of a staple fiber strand is produced.
- the invention is based on the object to optimize the method of the type mentioned in terms of cycle time and the quality of the new beginning of the staple fiber strand as preparation for a piecing process on an air jet spinning device.
- both the Riemchenwalzencru and the pair of delivery rollers are each separately controlled and stopped in such a way that is present in the main drafting zone for preparing a suitable new beginning of the staple fiber.
- a suitable new beginning of the staple fiber structure is already produced when the pair of apron rolls is first stopped.
- a renewed starting and renewed shutdown of Riemchenwalzencrues is not required, so that reduces the cycle time. Due to the fact that both the pair of apron rolls and the pair of delivery rolls, both at different times, are both controlled, a particularly good quality of the separation point of the staple fiber strand, ie the new beginning of the staple fiber strand, can be produced directly. Soworil the Riemchenwalzencruzencruve and the pair of delivery rollers are ultimately stopped, in such a way that the Riemchenwalzencruzencrued.
- the delivery roller pair comes to a standstill, it can be opened, which facilitates the preparation work for a piecing.
- the invention presupposes that individually controllable drives are provided both for the apron roller pair and for the delivery roller pair.
- the suitable for piecing new beginning of the staple fiber tape is slightly withdrawn by temporarily driving the Riemchenwalzencrues against its operational direction of rotation.
- the beginning of the staple fiber strand is so far withdrawn after generating a correct starting separation point that it is barely visible.
- the Ansetzloise Anfancj the staple fiber strand is thus protected, for example against air currents in the Practice for returning a thread end to which the staple fiber strand is to be applied may be required.
- the subsequent startup is again regulated. Only after a defined startup time for the Riemchenwalzencru and the pair of delivery rollers the normal default speed, ie the constant operating speed is reached.
- the delivery roller pair is opened shortly before its final shutdown. This prevents that the beginning of the staple fiber dressing which is suitable for a piecing process is impaired as long as the pair of delivery rolls is still running. Namely, a deterioration would occur if the outgoing feed roller rotates backwards by a few angular minutes immediately before shutdown, which is often the case when the drive is a powered drive belt is used and the voltage decreases when the drive force is eliminated. Before this occurs, the delivery roller pair is opened to protect the separation point of the staple fiber strand and then only completely stopped.
- FIG. 1 shows the region of a drafting system of an air nozzle spinper device during normal spinning operation
- FIGS. 2 to 5 show the individual phases of the method according to the invention for preparing a piecing process
- Figure 6 shows the starting of the drafting system for performing the actual piecing process.
- the air jet spinning device shown in Figure 1 which shows the operating state, is used to spin a thread 1 from a staple fiber strand 2.
- the air jet spinning device contains as essential components an air jet unit 3, for example, according to be formed initially mentioned prior art, further preferably designed as a three-cylinder drafting drafting 4 and - not shown - a pair of take-off rollers and a winding device.
- the drafting system 4 only partially shown contains a pair of input rollers not shown, also a Riemchenwalzencru 5, 6, which is looped in a known manner by officerssriemchen 7 and 8, and a pair of delivery rollers 9,10, at which the main drafting zone 11 of the drafting system 4 is completed.
- the staple fiber strand 2 is stretched in the direction of delay A to the desired fineness in a known manner.
- Each pair of rollers of the drafting system 4 includes a driven lower roller and a spring-loaded pressure roller.
- a first drive in the form of a common drive motor 12 for the delivery roller pair 9, 10
- a second drive in the form of a drive motor 13 is provided.
- the respective operational directions of rotation are labeled B and C.
- the air jet unit 3 contains a feed channel 1 4, to which the stretched, still rotation-free staple fiber strand is supplied in the form of a thin fiber ribbon 15 to give its spin rotation.
- the air jet unit 3 further includes a thread withdrawal channel 16 for the spun yarn 1.
- the outlet openings 18 lead into a vortex chamber 19, in which the actual spin distribution takes place, as described for example in the aforementioned US Patent 5,809,764.
- the withdrawal direction of the thread 1 is denoted by D.
- a suction tube 21 assigned to the driven delivery roller 9 is expedient, which is constantly evacuated in accordance with the suction direction E.
- This suction tube 21 is used during normal spinning operation the purpose of keeping the driven delivery roller 9 constantly from fiber fly.
- FIG. 2 now shows the situation after a yarn breakage and shows how a first step for preparing a piecing process is initiated.
- both the Riemchenwalzencru 5, 6 and the pair of delivery rollers 9, 10 are regulated, but stopped in succession r.
- the reduced speed of the driven rollers 5 and 9 can be seen on the opposite direction of Figure 1 shorter direction arrows B and C of Figure 2.
- the drive motor 13 runs a little longer than the drive motor 12.
- the target can be achieved in the indicated dotted area 23rd in the main draft zone 11 to create a new beginning 20 (see also Figure 3).
- the piece 24 to be disposed of the staple fiber strand 2 passes into the suction pipe 21st FIG.
- FIG. 3 shows the last phase of the stopping of the pair of apron rollers 5, 6 and of the delivery roller pair 9, 10, wherein, as already mentioned, the pair of delivery rollers 9, 10 runs slightly longer than the pair of apron rollers 5, 6.
- the pair of delivery rollers 9, 10 runs slightly longer than the pair of apron rollers 5, 6.
- the delivery roller pair 9, 10, whose pressure roller is now in position 10 ', is now completely stopped.
- the Riemchenwalzencru 5, 6 is n unrang but driven a little bit backwards over the drive motor 12, see the Drehr ⁇ chtungspfeil F, whereby the staple fiber strand 2 and thus the new beginning 20 of the staple fiber strand 2 according to the direction of arrow G are slightly withdrawn.
- the Riemchenwalzencru 5, 6 completely stopped. This ensures that the beginning 20 of the staple fiber strand 2 is protected against external influences, such as disturbing air currents.
- a Anspinnfaden 27 which is a part of an already spun yarn 1, taken on the winding device in a manner not shown and threaded backwards through the air jet unit 3 into the region of the drafting unit 4.
- This recycling thus takes place counter to the normal withdrawal direction D.
- the piecing thread 27 can be picked up by a suction device 25 (suction direction H) of a maintenance trolley (not shown). At this time, the drafting system 4 is still shut down altogether.
- end 26 of the Ansetzfadens 24 at the beginning of the staple fiber 2 2 is according to Figure 6 in a first phase, the re-closed pair of delivery rollers 9, 10, also not shown pair of withdrawal rollers and the winding device also not shown with initially reduced speed started.
- the end 26 of the Ansetzfadens 27 is pulled out of the suction pipe 25.
- An unillustrated detector determines when the end 26 of the Ansetzfadens 27 has left the suction tube 25. This is the timing signal for the drive motor 12, whereby the beginning 20 of the staple fiber strand 2 is supplied to the delivery roller pair 9, 10 at a time-correct distance.
- the beginning 20 of the staple fiber strand 2 and the end 26 of the Ansetzfadens 27 can then connect to each other in the range of the delivery roller pair 9, 10 and the air nozzle unit 3. For this purpose, the required to issue the spinning spin compressed air is switched on.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05799215A EP1799891A1 (de) | 2004-10-15 | 2005-10-13 | Verfahren zum vorbereiten eines ansetzvorganges an einer luftdüsenspinnvorrichtung |
US11/665,354 US7464530B2 (en) | 2004-10-15 | 2005-10-13 | Process for preparing a piecing operation in an air jet spinning arrangement |
JP2007536087A JP2008517166A (ja) | 2004-10-15 | 2005-10-13 | エアジェット紡績装置での糸継ぎ操作を準備するための方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004050968.9 | 2004-10-15 | ||
DE102004050968A DE102004050968A1 (de) | 2004-10-15 | 2004-10-15 | Verfahren zum Vorbereiten eines Ansetzvorganges an einer Luftdüsenspinnvorrichtung |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006042686A1 true WO2006042686A1 (de) | 2006-04-27 |
Family
ID=35502984
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2005/010995 WO2006042686A1 (de) | 2004-10-15 | 2005-10-13 | Verfahren zum vorbereiten eines ansetzvorganges an einer luftdüsenspinnvorrichtung |
Country Status (6)
Country | Link |
---|---|
US (1) | US7464530B2 (de) |
EP (1) | EP1799891A1 (de) |
JP (1) | JP2008517166A (de) |
CN (1) | CN101040073A (de) |
DE (1) | DE102004050968A1 (de) |
WO (1) | WO2006042686A1 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012164435A1 (en) * | 2011-05-31 | 2012-12-06 | Lakshmi Machine Works Ltd. | An improved piecing mechanism in an air spinning machine |
DE102012108380A1 (de) * | 2012-06-19 | 2013-12-19 | Maschinenfabrik Rieter Ag | Luftspinnmaschine und Verfahren zum Betrieb derselben |
CZ2012889A3 (cs) * | 2012-12-10 | 2014-06-18 | Rieter Cz S.R.O. | Způsob zapřádání poloautomatického rotorového dopřádacího stroje |
DE102013102770A1 (de) * | 2013-03-19 | 2014-09-25 | Maschinenfabrik Rieter Ag | Spinnstelle einer Spinnmaschine sowie Verfahren zum Betrieb derselben |
CH709953A1 (de) * | 2014-07-30 | 2016-02-15 | Rieter Ag Maschf | Verfahren zum Betrieb einer Luftspinnmaschine. |
CH712663A1 (de) * | 2016-07-14 | 2018-01-15 | Rieter Ag Maschf | Verfahren zum Verarbeiten eines strangförmigen Faserverbands sowie Vorspinnmaschine. |
CN111155214B (zh) * | 2020-01-19 | 2022-06-10 | 绍兴国周纺织整理有限公司 | 一种多组份涡流纺膨体混纺纱线及其生产工艺 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5809764A (en) * | 1996-01-30 | 1998-09-22 | Murata Kikai Kabushiki Kaisha | Piecing method for a spinning machine |
EP1205588A1 (de) * | 2000-11-08 | 2002-05-15 | Maschinenfabrik Rieter Ag | Steuerung von Spinnstellen in einer Spinnmaschine |
EP1219737A1 (de) * | 2000-12-22 | 2002-07-03 | Maschinenfabrik Rieter Ag | Verfahren zum Ansetzen eines in einer Spinnstelle gebildeten Garnes oder zum Anspinnen, sowie zur Durchführung des Verfahrens ausgerüstete Spinnstelle |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IL130204A (en) | 1999-05-31 | 2006-09-05 | Rafael Advanced Defense Sys | Foldable personal protective board |
EP1375709B1 (de) * | 2002-06-21 | 2014-08-06 | Maschinenfabrik Rieter Ag | Ansetzverfahren oder Anspinnen für Spinnstellen von Luftspinnmaschinen |
-
2004
- 2004-10-15 DE DE102004050968A patent/DE102004050968A1/de not_active Withdrawn
-
2005
- 2005-10-13 JP JP2007536087A patent/JP2008517166A/ja active Pending
- 2005-10-13 WO PCT/EP2005/010995 patent/WO2006042686A1/de active Application Filing
- 2005-10-13 US US11/665,354 patent/US7464530B2/en not_active Expired - Fee Related
- 2005-10-13 CN CNA2005800350911A patent/CN101040073A/zh active Pending
- 2005-10-13 EP EP05799215A patent/EP1799891A1/de not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5809764A (en) * | 1996-01-30 | 1998-09-22 | Murata Kikai Kabushiki Kaisha | Piecing method for a spinning machine |
EP1205588A1 (de) * | 2000-11-08 | 2002-05-15 | Maschinenfabrik Rieter Ag | Steuerung von Spinnstellen in einer Spinnmaschine |
EP1219737A1 (de) * | 2000-12-22 | 2002-07-03 | Maschinenfabrik Rieter Ag | Verfahren zum Ansetzen eines in einer Spinnstelle gebildeten Garnes oder zum Anspinnen, sowie zur Durchführung des Verfahrens ausgerüstete Spinnstelle |
Also Published As
Publication number | Publication date |
---|---|
EP1799891A1 (de) | 2007-06-27 |
CN101040073A (zh) | 2007-09-19 |
JP2008517166A (ja) | 2008-05-22 |
DE102004050968A1 (de) | 2006-04-20 |
US20080066442A1 (en) | 2008-03-20 |
US7464530B2 (en) | 2008-12-16 |
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