EP1687470A1 - Verfahren zur herstellung eines effektgarnes auf einer offenend-rotorspinnmaschine und effektgarn - Google Patents
Verfahren zur herstellung eines effektgarnes auf einer offenend-rotorspinnmaschine und effektgarnInfo
- Publication number
- EP1687470A1 EP1687470A1 EP04790329A EP04790329A EP1687470A1 EP 1687470 A1 EP1687470 A1 EP 1687470A1 EP 04790329 A EP04790329 A EP 04790329A EP 04790329 A EP04790329 A EP 04790329A EP 1687470 A1 EP1687470 A1 EP 1687470A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- yarn
- piecing
- effect
- formation
- spinning
- 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
- 230000000694 effects Effects 0.000 title claims abstract description 51
- 238000007383 open-end spinning Methods 0.000 title claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- 230000000875 corresponding effect Effects 0.000 title description 2
- 230000008719 thickening Effects 0.000 claims abstract 3
- 230000015572 biosynthetic process Effects 0.000 claims description 31
- 238000009987 spinning Methods 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 17
- 239000000835 fiber Substances 0.000 description 10
- 238000005520 cutting process Methods 0.000 description 4
- 239000004744 fabric Substances 0.000 description 3
- 239000004753 textile Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 238000012549 training Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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
- D01H4/48—Piecing arrangements; Control therefor
- D01H4/50—Piecing arrangements; Control therefor for rotor spinning
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/34—Yarns or threads having slubs, knops, spirals, loops, tufts, or other irregular or decorative effects, i.e. effect yarns
Definitions
- the invention relates to a method according to the preamble of claim 1 and an fancy yarn according to the preamble of claim 7.
- a fancy yarn is a yarn in which there are thick spots with predetermined larger diameters and with predetermined lengths, the so-called effects.
- the intervening yarn sections with a smaller diameter are referred to as webs.
- a certain recurring, self-contained sequence of effects and bars in alternating sequence of effects and bar is called yarn repeat.
- the repeat length is the addition of all effect lengths and bridge lengths.
- Fancy yarns are becoming increasingly important. Areas of application are, for example, denim fabrics, fabrics for casual wear and home textiles.
- Effect yarns can also be produced on rotor spinning machines.
- the fiber feed to the opening roller of the rotor spinning device can be changed, for example, by varying the speed of the feed rollers.
- a piecing unit that is movable along the rotor spinning machine is usually delivered to the respective spinning station.
- the normal thread run at the spinning position is changed for spinning and the control of the yarn formation is taken over by the spinning unit.
- the thread can, for example, be drawn out of the spinning rotor by take-off rollers which are controlled by the piecing unit.
- the extraction speed follows the increase in the rotor speed until the operating rotor speed is reached. After the spinning rotor has reached its operating speed, the thread is returned to the normal thread run at the spinning position.
- the piecing process ends with the thread transfer.
- the control of the yarn formation is again taken over by the control device of the spinning station or the assigned group control.
- the program for the formation of effects starts again from this point in time.
- the piecing area is followed by yarn with effect formation.
- the piecing area after the piecer can be several meters, with high warpage up to five meters.
- the invention is based on the knowledge that a yarn section with a constant diameter in the finished product, e.g. in a fabric to which the fancy yarn is processed, can be visually recognized and can be felt as imperfection, which means a lack of quality.
- the effect formation in the piecing area is additionally controlled by the control of a piecing unit which controls the yarn formation during the piecing process. All that is required is appropriate programming training. Structural changes are not necessary for this.
- the drive coupling is disconnected and the drive is carried out mechanically via a drive cone directly from the piecing unit in such a way that the corresponding effects develop.
- individual drives for the feed rollers are present at the spinning stations, their control, which is also geared towards the formation of effects, can be carried out by the piecing unit or by a work station controller. The effect formation in the piecing area can thus be carried out particularly quickly and effectively (claim 4).
- FIG. 1 is a simplified schematic representation of a job of an open-end rotor spinning machine
- Fig. 2 is an idealized, not to scale, schematic representation of a part of a fancy yarn with piecer.
- the spinning station 1 shows a spinning station 1 of an open-end rotor spinning machine.
- the spinning station 1 has an opening device 2, into which the Feed roller 4 a sliver 5 is inserted.
- the feed roller 4 is driven by the infinitely variable feed motor 3.
- the sliver 5 is placed in a opening roller 7 which rotates in the housing 6 and which breaks up the fed sliver 5 into individual fibers 8.
- the separated fibers 8 pass through the fiber guide channel 9 onto the conical sliding surface 10 of a spinning rotor 11 and from there into the fiber collecting groove 12. From the fiber collecting groove 12, the yarn is drawn off through the thread take-off tube 17 in the direction of arrow 18 with the aid of a pull-off device 19.
- the effects of the fancy yarn 16 can be determined by appropriately controlling the feed motor 3.
- the spinning rotor 11 is fastened on a shaft 13, which is mounted in a running disk bearing 14 and is driven by means of a tangential belt 15.
- the take-off device 19 for the spun yarn has a pair of rollers.
- the fancy yarn 16 follows the drawn line 16A after the draw-off device 19 and is continuously wound onto a package, not shown here.
- the piecing units are each supplied with a piecing unit which can be moved along the rotor spinning machine and which carries out the piecing process.
- the piecing unit is not shown here for reasons of simplification.
- the fancy yarn 16 is guided in places in the piecing unit, which is indicated schematically by the yarn deflection between the take-off device 19 and a thread guide 20.
- the In the piecing unit, not shown here, fancy yarn 16 runs between two further thread guides 21 and 22 through a sensor device 23 with which the yarn diameter is measured continuously during the piecing process.
- the test signals for the length-related yarn diameter measured values are fed to a control device 24 of the piecing unit.
- the thread guide 20 is followed by a cleaner 25 in the thread path.
- the cleaner 25 comprises a sensor device and a cutting device.
- the cutting device of the cleaner 25 is activated, which cuts the fancy yarn 16.
- the yarn diameter is checked on the accelerated fancy yarn 16 during the run-up of the spinning rotor 11.
- the fancy yarn 16 is drawn off from the thread take-off tube 17 by means of the take-off device 19 at an increasing speed in accordance with the increasing spinning rotor speed.
- the measuring frequency of the sensor device 23 can be adjusted to the changing speed of the accelerated fancy yarn 16
- 27 pulses are picked up by the thread-drawing roller of the take-off device 19 driven by a drive 26 by means of a sensor. These impulses provide information about the take-off speed of fancy yarn 16.
- the sensor signals are fed to control device 24, which controls the measuring frequency of sensor 27 and adapts them to the yarn take-off speed.
- the yarn speed can be determined, for example, by contactless measurement directly on the yarn.
- the control device 24 is connected to a control device 28 of the spinning station 1.
- the control device 28 is connected via the line 29 to further modules of the spinning machine. Further details of such spinning positions and the piecing process can be found, for example, in DE 40 30 100 AI or its parallel US Pat. No. 6035622 and the publication Raasch et. al. "Automatic piecing for OE rotor spinning", MELLIAND textile reports 4/1989, pages 251 to 256.
- FIG. 2 shows the fancy yarn 16 in the form of a curve 30, which has been formed from a series of the continuously detected yarn diameter measurement values of the fancy yarn 16. In order to make the web thickness and the different effect thicknesses more recognizable, they are shown exaggerated in comparison to the yarn length.
- the ordinate of the coordinate system in FIG. 2 shows the diameter D of the fancy yarn 16 in percent. The value 100% corresponds to the web thickness, which is always the same in the exemplary embodiment.
- the yarn length L of the fancy yarn 16 is given in mm on the abscissa of the coordinate system.
- the section of the fancy yarn 16, which comprises the piecer 31 and is represented by the course of the curve 30, has a length of approximately one meter.
- the last effect 32 before the end of the fancy yarn 16 returned for piecing is shown in FIG. 2 in the course of the curve 30 on the left.
- the part of the web 33 following the effect 32 has been inserted as the end of the yarn in the spinning rotor 11 for piecing.
- the effect 32 has an effect thickness of 150% of the web thickness.
- Line 34 indicates the point at which the formation of fancy yarn 16 was interrupted according to the specifications of the yarn repeat. This is followed by the piecer 31 and then the web 35.
- Line 36 indicates the point at which the formation of fancy yarn 16 was continued in accordance with the specifications of the yarn repeat.
- On the Web 35 is followed by the first effect 37 in fancy yarn 16, which has been formed as a continuation of the yarn repeat.
- the effect 37 has an effect thickness of 130% of the web thickness.
- the effect 39 has an effect thickness of 125% of the web thickness.
- the third effect 41 has an effect thickness of 150% of the web thickness.
- the web lengths of the webs 33, 35, 38, 40 and the effects 32, 37, 39, 41, like the effect thicknesses, are each designed in accordance with the specification of the yarn repeat.
- the yarn repeat can be stored in the control device 28, for example.
- the point of the yarn repeat at which the formation of the fancy yarn 16 according to the specifications of the yarn repeat was interrupted is also stored by the control device 28.
- the piecing process is initiated and during the piecing process the fiber feed into the spinning rotor 11 is controlled via the feed motor 3 so that the piecer 31 can be formed.
- the formation of the piecer 31 is immediately followed by the formation of the fancy yarn 16 according to the specifications of the yarn repeat.
- the effect formation can also be influenced by changing further parameters such as the yarn rotation.
- the formation of the fancy yarn 16 according to the specifications of the yarn repeat is continued with the formation of the web on or before which the yarn interruption was carried out. The invention is not based on the illustrated
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)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10354608A DE10354608A1 (de) | 2003-11-21 | 2003-11-21 | Verfahren zur Herstellung eines Effektgarnes auf einer Offenend-Rotorspinnmaschine und Effektgarn |
| PCT/EP2004/011449 WO2005052231A1 (de) | 2003-11-21 | 2004-10-13 | Verfahren zur herstellung eines effektgarnes auf einer offenend-rotorspinnmaschine und effektgarn |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1687470A1 true EP1687470A1 (de) | 2006-08-09 |
| EP1687470B1 EP1687470B1 (de) | 2010-12-08 |
Family
ID=34585243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04790329A Expired - Lifetime EP1687470B1 (de) | 2003-11-21 | 2004-10-13 | Verfahren zur herstellung eines effektgarnes auf einer offenend-rotorspinnmaschine und effektgarn |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7454889B2 (de) |
| EP (1) | EP1687470B1 (de) |
| CN (1) | CN1882729B (de) |
| DE (2) | DE10354608A1 (de) |
| WO (1) | WO2005052231A1 (de) |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2539341C3 (de) * | 1975-09-04 | 1978-04-27 | Saurer-Allma Gmbh, Allgaeuer Maschinenbau, 8960 Kempten | Programmsteuerung fur Effektzwirn- und -Spinnmaschinen |
| DE2657096A1 (de) * | 1976-12-16 | 1978-06-22 | Bernd Messing | Verfahren und vorrichtung zur herstellung von dekorgarnen mittels eines offen-end-spinnverfahrens |
| DE3536827A1 (de) * | 1985-10-16 | 1987-04-16 | Schubert & Salzer Maschinen | Verfahren und vorrichtung zur herstellung eines effektgarnes auf offenend-spinnvorrichtungen |
| DE3716728A1 (de) * | 1987-05-19 | 1988-12-01 | Schlafhorst & Co W | Verfahren und vorrichtung zum ueberwachen der anspinner in einem oe-spinnaggregat |
| DE4030100C2 (de) | 1990-09-22 | 2000-03-23 | Schlafhorst & Co W | Verfahren und Einrichtung zum Bestimmen der Änderungen von Kriterien eines automatischen Anspinnvorgangs |
| DE4124571A1 (de) * | 1991-07-24 | 1993-01-28 | Bengt Prof Edberg | Verfahren und vorrichtung zum herstellen von effektgarn durch oe-spinnen |
| US5509261A (en) * | 1993-03-26 | 1996-04-23 | W. Schlafhorst Ag & Co. | Stepping motor arrangement for driving a silver feed roller in a rotor spinning machine |
| DE10059967B4 (de) | 2000-12-02 | 2013-03-28 | Rieter Ingolstadt Gmbh | Verfahren und Anordnung zum Überwachen eines Fadenansetzers an einer Spinnmaschine |
| CN1091813C (zh) * | 2000-12-29 | 2002-10-02 | 东华大学 | 转杯纺竹节纱的方法和纺纱装置 |
| DE10327370A1 (de) * | 2003-06-18 | 2005-01-13 | Rieter Ingolstadt Spinnereimaschinenbau Ag | Verfahren und Vorrichtung zum Anspinnen eines Fadens in einer Offenend-Spinnvorrichtung |
-
2003
- 2003-11-21 DE DE10354608A patent/DE10354608A1/de not_active Withdrawn
-
2004
- 2004-10-13 CN CN2004800343152A patent/CN1882729B/zh not_active Expired - Fee Related
- 2004-10-13 WO PCT/EP2004/011449 patent/WO2005052231A1/de not_active Ceased
- 2004-10-13 US US10/580,125 patent/US7454889B2/en not_active Expired - Fee Related
- 2004-10-13 DE DE502004011980T patent/DE502004011980D1/de not_active Expired - Lifetime
- 2004-10-13 EP EP04790329A patent/EP1687470B1/de not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2005052231A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE502004011980D1 (de) | 2011-01-20 |
| US20070151224A1 (en) | 2007-07-05 |
| CN1882729A (zh) | 2006-12-20 |
| CN1882729B (zh) | 2012-05-23 |
| WO2005052231A1 (de) | 2005-06-09 |
| EP1687470B1 (de) | 2010-12-08 |
| US7454889B2 (en) | 2008-11-25 |
| DE10354608A1 (de) | 2005-06-16 |
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| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: SIEWERT, RALF Inventor name: BIERMANN, IRIS Inventor name: KREITZEN, LORENZ Inventor name: HAASE, CHRISTOPH Inventor name: DOERNER, WOLFGANG |
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| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
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