EP1398402A2 - Métiers à filer à vortex d'air avec des moteurs à réluctance - Google Patents

Métiers à filer à vortex d'air avec des moteurs à réluctance Download PDF

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Publication number
EP1398402A2
EP1398402A2 EP03017004A EP03017004A EP1398402A2 EP 1398402 A2 EP1398402 A2 EP 1398402A2 EP 03017004 A EP03017004 A EP 03017004A EP 03017004 A EP03017004 A EP 03017004A EP 1398402 A2 EP1398402 A2 EP 1398402A2
Authority
EP
European Patent Office
Prior art keywords
reluctance
motors
spinning machine
reluctance motor
air 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.)
Withdrawn
Application number
EP03017004A
Other languages
German (de)
English (en)
Other versions
EP1398402A3 (fr
Inventor
Olivier Wuest
Horst Wolf
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Maschinenfabrik Rieter AG
Original Assignee
Maschinenfabrik Rieter AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Publication of EP1398402A2 publication Critical patent/EP1398402A2/fr
Publication of EP1398402A3 publication Critical patent/EP1398402A3/fr
Withdrawn legal-status Critical Current

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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
    • D01H1/14—Details
    • D01H1/20—Driving or stopping arrangements
    • D01H1/22—Driving or stopping arrangements for rollers of drafting machines; Roller speed control
    • 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
    • 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
    • D01H4/42—Control of driving or stopping

Definitions

  • the present invention relates to an air spinning machine according to the preamble of claim 1 and a method for operating a Air spinning machine according to the preamble of claim 11.
  • Air spinning machines have a large number of spinning positions. Thereby in spinning a yarn from each spinning station from a longitudinal fiber structure. The spinning process takes place via the drafting system, in which the amount of fibers per Unit of length is reduced by warping.
  • the drafting system usually indicates this three pairs of rollers arranged one behind the other, their peripheral speed increases from roller pair to roller pair. Then it is refined Longitudinal fiber structures in a spinneret by twisting into a yarn spun.
  • Air spinning machines use the air spinning method for yarn formation, i.e. the yarn is formed by air twist.
  • the yarn is then pulled off by means of another pair of rollers and finally on one Spool of thread spooled. This coil is preferably over a friction roller driven, which in turn is connected to a motor.
  • the present invention is therefore based on the object Air spinning machine and a method for operating an air spinning machine to be specified so that a single run-up is carried out for each spinning station can be and no regulation is required.
  • the one needed Control should be simple in terms of circuitry and still be on allow precise and very fast start-up.
  • an optimal efficiency can be achieved.
  • reluctance motors By using reluctance motors to drive the rollers one A spinning station can be dispensed with, since there are reluctance motors characterized in that their speed synchronized with the frequency supplied to them is. Due to mass-free tooth gaps - between the rotor teeth - in the The reluctance motor has a relatively low moment of inertia on the outside of the rotor and is therefore particularly suitable for driving the roller pairs, since these can be accelerated to an operating speed in a very short time have to.
  • Another advantage of the invention results from the fact that for Air spinning machines are only accurate in terms of speed, but not accurate in terms of angle Startup is required. This requirement can be met with non-regulated ones Reluctance motors in a simple way.
  • FIG. 1 shows a basic illustration of a single spinning station 1 with drafting device 2, spinning box 3, take-off 4 and yarn spool 6.
  • the drafting system 2 is formed by three pairs of rollers 21, 22 and 23, which have a greater peripheral speed in the spinning direction D.
  • v1 ⁇ v2 ⁇ v3 have to refine the supplied longitudinal fiber structure 10.
  • the yarn 10 produced in the spin box 3 is descended over a pair of rollers 24 Trigger 4 transported away and by means of a friction roller 5 on the yarn spool 6 wound.
  • a thread laying device ensures orderly winding 8, the yarn depending on the speed of rotation of the yarn bobbin 6 reciprocated.
  • the spinning process is monitored by a thread monitor 7, the in the event of yarn breakage, the spinning station in question is taken out of operation.
  • the aforementioned pairs of rollers 21, 22, 23 and 24 and the friction roller 5 are assigned by reluctance motors 11, 12, and 13 via the Drive connections 9 driven.
  • Reluctance motors are electric motors that contain a winding-free rotor having rotor teeth and their Speed behavior in synchronous operation directly proportional to the frequency of the supplied voltage is.
  • the one to be formed in the stator of a reluctance motor magnetic rotating field is generated by three-phase voltages, which in the temporal course are shifted by 120 ° to each other.
  • the Stator three windings, which are arranged symmetrically offset. Conceivable would also be a two-phase operation and accordingly two windings the stator.
  • the voltages to be supplied are 90 ° to one another Shifted 180 °.
  • the rotor of a reluctance motor consists of only one Sheet pack and the shaft.
  • the assignment of reluctance motors 11, 12 and 13 to the roller pairs 21, 22, 23 and 24 in FIG. 1 is only an example understand. It is also possible for a reluctance motor to have only one Drives pair of a spinning station 1 drives.
  • the frequency converters 31, 32 and 33 are also connected via the busbar 55 electrical energy.
  • the frequency converter 33 the other frequency converters via a DC voltage intermediate circuit 30 31 and 32 fed.
  • the frequency converters 41, 42 and 43 are on a common feed line 40 and are connected via a Transformer 56 fed.
  • the frequency inverters 41, 42 and 43 multiple voltages are supplied.
  • the Transformer 56 designed as a so-called autotransformer.
  • One control the frequency converter 31, 32 and 33 for stationary operation is so far required, so that the operating speeds have to be specified that the respective spinning batch (material, type of yarn to be spun) adapted must become.
  • a predeterminable command variable (not shown in Figures 1 and 2). According to FIG.
  • the Spinning station 1 is in a transient state of startup.
  • the reluctance motors 11, 12 and 13 of a spinning station 1 (or 1 ', ..) in the phase of the startup is separate from these reluctance motors 11, 12 and 13 assigned frequency converters 41, 42 and 43 are provided.
  • These assigned Frequency converters 41, 42 and 43 are advantageously dimensioned such that they only the reluctance motors 11, 12 and 13 of a single spinning station at the same time 1 (or 1 '; ..) can supply.
  • the run-up parameters are specified as a command variable so that the Reluctance motors 11, 12 and 13 the operating speed in the required time to reach.
  • This control also gives the reference variables for the frequency inverters 31, 32 and 33 in stationary operation.
  • nD0 nW0 is switched - also "switch called "over" - the energy supply of the assigned frequency converters 41, 42 and 43 to the frequency inverters 31, 32 and 33.
  • Switches 51, 52 and 53 These switches are operated via a coupling 50.
  • a particularly advantageous embodiment of the coupling 50 is shown below 4 explained.
  • the switches themselves 51, 52 and 53 can be galvanic, i.e. be provided with contacts or it can also be electronic Switches based on semiconductor circuit breakers can be provided. Fast switching is important.
  • the coupling 50 can be mechanical, electrical or electronic be executed.
  • the switches 51, 52 and 53 are shown separately in FIG. 2. This is not mandatory, switches 51, 52, and 53 can be combined in one mechanical or electronic contactor.
  • FIG. 4 shows the time course of the speed nW of the friction roller 5 for winding ("winding") the yarn or the speed nD of the associated reluctance motor 13 and the roller pairs 24 and 23 between which the yarn formation ("drawing") or of the associated reluctance motor 12.
  • the reluctance motors 12 and 13 run up synchronously with the frequency applied to the operating speeds nWo and nD0.
  • a three-phase voltage is generated in the frequency converters 42 and 43, the frequency of which rises from 0 Hz to the corresponding operating frequency of, for example, 235 Hz for the reluctance motor 13.
  • the specification of the operating frequency is only to be understood as an example.
  • the frequency converters 32 and 33 are switched over for stationary operation.
  • the relationship applies to the changeover time tU or tU1 and tU2 (see FIG. 4): t0 ⁇ tU.
  • the reluctance motors run when powered by the frequency converter 31, 32, and 33 for the stationary Operation not synchronized or asynchronously high, e.g. of a Speed value of e.g. 580 m / min to 600 m / min.
  • the aforementioned Frequency converters 31, 32, and 33 give a voltage with the constant Operating frequency from, since all corresponding reluctance motors of the air spinning machine can be fed in parallel from a single frequency converter.
  • the Reluctance motors 11 and 12 for driving the Drafting unit 2 an average moment of inertia of the roller pairs to be driven 21, 22 and 23 include a relatively high load.
  • the aforementioned dimensioning of the reluctance motors is independent of an operating procedure on which these are based.
  • a particularly advantageous further development for the air spinning machine according to the invention provides for the frequency converters and the reluctance motors connected to them to be used in four-quadrant operation. If the energy supplied via the busbar 55 fails, the air spinning machine can be shut down in a defined manner in this way: The kinetic energy stored by the moment of inertia of the yarn package 6 and the friction roller 5 is supplied by the associated reluctance motors 13, 13 ', .. (now actually they are generators) via the frequency converter 33 to the DC intermediate circuit 30, so that the other reluctance motors 11 and 12 from the relevant frequency converters 31 and 32 are supplied with electrical energy. This can force the air spinning machine to shut down synchronously.
  • a control variable which is designed as a function of time, is to be supplied to the individual frequency inverters 31 and 32 by a controller.
  • This reference variable can be derived from the variables frequency, voltage and current present in the frequency converter 33 from the reluctance generators 13 and defines the shutdown of an air spinning machine according to the invention. In a special embodiment of the shutdown, provision can be made to keep the voltage in the DC voltage intermediate circuit 30 constant over time with a regulation.
  • the aforementioned mode of operation can also be used to bridge a brief voltage failure on the busbar 55. This makes it possible to bridge such events without yarn breaks.
  • reluctance motors can be used water cooling may be provided.
  • the water used for cooling circulates in the stator of the reluctance motors carrying the winding.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP03017004A 2002-09-16 2003-07-26 Métiers à filer à vortex d'air avec des moteurs à réluctance Withdrawn EP1398402A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH15692002 2002-09-16
CH15692002 2002-09-16

Publications (2)

Publication Number Publication Date
EP1398402A2 true EP1398402A2 (fr) 2004-03-17
EP1398402A3 EP1398402A3 (fr) 2004-09-01

Family

ID=31722390

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03017004A Withdrawn EP1398402A3 (fr) 2002-09-16 2003-07-26 Métiers à filer à vortex d'air avec des moteurs à réluctance

Country Status (4)

Country Link
US (1) US7043894B2 (fr)
EP (1) EP1398402A3 (fr)
JP (1) JP2004107870A (fr)
CN (1) CN1490445A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006024554A1 (de) * 2006-05-23 2007-11-29 Saurer Gmbh & Co. Kg Spinnereimaschine mit einer Mehrzahl von synchron betriebenen Elektromotoren

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004049250A1 (de) * 2004-09-30 2006-04-06 Wilhelm Stahlecker Gmbh Verfahren und Vorrichtung zur Synchronumschaltung eines Motors zwischen zwei Frequenzumrichtern
US8156757B2 (en) * 2006-10-06 2012-04-17 Aff-Mcquay Inc. High capacity chiller compressor
ES2799826T3 (es) * 2008-03-13 2020-12-21 Daikin Applied Americas Inc Compresor de refrigerador de alta capacidad
CN103510196B (zh) * 2013-08-13 2016-07-13 东华大学 一种基于主从控制模式的细纱机电机式锭子的控制方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4336684A (en) * 1979-03-23 1982-06-29 Zinser Textilmaschinen Gmbh Driving assembly for ring spinning or twisting machine
DE19637757A1 (de) * 1995-10-11 1997-04-17 Rieter Ag Maschf Spinnmaschine
US20010042365A1 (en) * 1999-12-29 2001-11-22 Anton Paweletz Spin machine with several single drives
EP1205588A1 (fr) * 2000-11-08 2002-05-15 Maschinenfabrik Rieter Ag Dispositif de commande pour des postes de filature d'un métier à filer

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE58903262D1 (de) * 1988-07-06 1993-02-25 Rieter Ag Maschf Synchronisierbare antriebssysteme.
IL90789A0 (en) * 1988-08-05 1990-01-18 Rieter Ag Maschf Textile machine with drawframes
US5161361A (en) * 1991-08-30 1992-11-10 Platt Saco Lowell Corporation Motor-driven spindle assembly for ring spinning
GB9608215D0 (en) * 1996-04-19 1996-06-26 Switched Reluctance Drives Ltd Weaving apparatus
JPH10204731A (ja) * 1997-01-16 1998-08-04 Murata Mach Ltd 紡績装置
DE19817333C5 (de) * 1998-04-18 2007-04-26 Conti Temic Microelectronic Gmbh Elektrische Antriebseinheit aus Elektromotor und Elektronikmodul

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4336684A (en) * 1979-03-23 1982-06-29 Zinser Textilmaschinen Gmbh Driving assembly for ring spinning or twisting machine
DE19637757A1 (de) * 1995-10-11 1997-04-17 Rieter Ag Maschf Spinnmaschine
US20010042365A1 (en) * 1999-12-29 2001-11-22 Anton Paweletz Spin machine with several single drives
EP1205588A1 (fr) * 2000-11-08 2002-05-15 Maschinenfabrik Rieter Ag Dispositif de commande pour des postes de filature d'un métier à filer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006024554A1 (de) * 2006-05-23 2007-11-29 Saurer Gmbh & Co. Kg Spinnereimaschine mit einer Mehrzahl von synchron betriebenen Elektromotoren
DE102006024554B4 (de) * 2006-05-23 2008-07-24 Oerlikon Textile Gmbh & Co. Kg Spinnereimaschine mit einer Mehrzahl von synchron betriebenen Elektromotoren

Also Published As

Publication number Publication date
US7043894B2 (en) 2006-05-16
JP2004107870A (ja) 2004-04-08
US20040107688A1 (en) 2004-06-10
CN1490445A (zh) 2004-04-21
EP1398402A3 (fr) 2004-09-01

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