WO2003033786A1 - Mecanisme d'entrainement de bancs d'etirage d'un metier a filer - Google Patents

Mecanisme d'entrainement de bancs d'etirage d'un metier a filer Download PDF

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Publication number
WO2003033786A1
WO2003033786A1 PCT/CH2002/000566 CH0200566W WO03033786A1 WO 2003033786 A1 WO2003033786 A1 WO 2003033786A1 CH 0200566 W CH0200566 W CH 0200566W WO 03033786 A1 WO03033786 A1 WO 03033786A1
Authority
WO
WIPO (PCT)
Prior art keywords
drive
drive motors
motors
frequency converter
motor
Prior art date
Application number
PCT/CH2002/000566
Other languages
German (de)
English (en)
Inventor
Horst Wolf
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
Priority to JP2003536501A priority Critical patent/JP2005505704A/ja
Priority to EP02767031A priority patent/EP1436449A1/fr
Publication of WO2003033786A1 publication Critical patent/WO2003033786A1/fr

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
    • D01H1/14—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
    • 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
    • D01H5/74—Rollers or roller bearings
    • D01H5/82—Arrangements for coupling roller sections
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P5/00—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
    • H02P5/74—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors controlling two or more ac dynamo-electric motors

Definitions

  • the invention relates to a drive for the drafting systems of a spinning machine according to the preamble of claim 1.
  • the invention relates to a ring spinning machine.
  • Such a spinning device has long lower cylinders which extend over a plurality of drafting units of the spinning machine in the longitudinal direction thereof. These lower cylinders are driven by drive motors. These are electric motors and are usually fed by frequency converters. It is of great importance to control these drive motors evenly or to drive the lower cylinders evenly so that the drafting systems run smoothly if required to maintain the required high quality.
  • a ring spinning machine is known from DE 29 11 378 C2, the three lower cylinders of which are each driven by an electric motor.
  • Each of the electric motors is assigned its own frequency converter including frequency adjuster. This means that a large number of frequency inverters is required, which is expensive to buy and complex to maintain.
  • the invention has for its object to provide a drive mentioned with which the disadvantages of the prior art are avoided, in particular the effort with respect to the frequency converter is reduced with high quality of the control of the drive motors.
  • a lower cylinder has a plurality of drive motors as drives.
  • the drive motors of a lower cylinder are advantageously fed via exactly one common frequency converter.
  • the frequency converter is preferably a conventional frequency converter and has an adjustable output frequency for controlling the drive motors.
  • One of the drive motors is a so-called servo motor and has a resolver, a type of electrical clock generator.
  • the frequency converter is controlled by means of this resolver. This is possible using a frequency converter for the frequency converter.
  • Known methods can be used to control the frequency converter.
  • the frequency converter is played, so to speak, that it feeds a single high-performance electric motor by means of the signals from the resolver or clock generator.
  • a number of identical electric motors can be fed with exactly one resolver and exactly one frequency converter. This saves effort for costly and maintenance-intensive frequency converters.
  • Four electric motors are preferably fed with one frequency converter.
  • One of these electric motors is the aforementioned servo motor and resolver.
  • the resolver can advantageously be integrated or built into the servo motor.
  • Electric motors are preferably assigned to a lower cylinder and there is exactly one servo motor.
  • the electric motors are in particular mechanically firmly coupled to the lower cylinder and / or to one another. In this way it can be achieved with the invention that the Electric motors or drives of a lower cylinder run exactly synchronously. They do not necessarily have to run at right angles to each other. Only the synchronicity is very important, so that all drafting systems that are driven by the lower cylinder run at the same and constant speed. Two lower cylinders can also be coupled together.
  • Synchronous motors are preferably used as electric motors; permanent magnet synchronous motors (PES) are particularly preferred.
  • PES permanent magnet synchronous motors
  • the spinning device can at least partially have an underfloor structure for the drive.
  • the drive motors are located below the actual drafting system on the machine. There can be a left side and a right side, whereby both sides can be divided into a head and a foot.
  • At least two electric motors drive at least one lower cylinder per side.
  • two electric motors alone drive the input lower cylinder on each side of the head and foot.
  • two electric motors can jointly drive the central pull and lower cylinder.
  • all the lower cylinders have four electric motors, the central pull and the outlet lower cylinders sharing these four electric motors.
  • the electrical feed lines from the frequency converter to each electric motor are matched to one another with regard to their electrical properties. In this way, control differences in terms of runtime and changes due to different line properties can be avoided. The required synchronous control of the electric motors can thus be guaranteed to a particularly high degree.
  • the supply lines can preferably be of the same length and / or identical. Under certain circumstances it is possible to verify this identity of the electrical supply lines by other circuitry To achieve special features. However, the use of identical supply lines, particularly with regard to their length and type of line, is the simplest.
  • Fig. 1 is a schematic fragmentary representation of a drive of a spinning machine including frequency converter and
  • FIG. 2 shows a further schematic illustration of a drive in addition to FIG. 1.
  • Fig. 1 the control of four drive motors 12a-d is shown in a section. These four drive motors are fed by a frequency converter 13 and controlled accordingly.
  • the supply or control takes place via a resolver 15 which is connected to the drive machine 12a on the far left in FIG. 1.
  • the connection is preferably and, as shown in FIG. 1, that the resolver 15 is coupled to the shaft 16a of the drive motor 12a or is seated thereon.
  • the angular position of the drive motor 12a for measuring the load angle and for determining the current is detected via the resolver 15.
  • the signal detected by the resolver 15 on the drive motor 12a is returned to the frequency converter 13.
  • the latter processes it internally in order to control the drive motor 12a and the drive motors 12b-d in the same way. This procedure corresponds to the usual control procedures for synchronous motors.
  • the drive motor 12a is a so-called servo motor because it has the resolver 15. Otherwise, the drive motor 12a can be essentially identical in construction to the drive motors 12b
  • the drive motors 12a-d can all be coupled together or in smaller groups to common shafts. This is possible in an advantageous manner.
  • the drive motors do not have to run exactly at right angles to each other. It is of great importance that they run synchronously, i.e. do not change their angular position to each other.
  • the drive motors 12a-d are coupled with the shafts 16a-d to lower cylinders of spinning devices, for example ring spinning machines. Since these lower cylinders have a large length, it may be that this length results in a twist between two driven regions of a lower cylinder. This becomes critical when this bend changes. This is avoided with the present invention by the particularly precise motor control.
  • the drive motors 12a-d are controlled or supplied with power via the main feed line 17, from which a separate auxiliary feed line 18a-d goes out for each motor.
  • a particularly precise synchronous operation of the drive motors 12a-d is obtained if the feed paths from the frequency converter 13 to each individual drive motor 12 are identical. This applies in particular to the length and type of cable. It should therefore be ensured that the leads to each drive motor are the same.
  • the drive motors 12a-d are distributed over the head and foot of the machine and a left side and a right side in each case. It is preferably permanently excited synchronous motors.
  • FIG. 2 shows, for example only for the left side 25 of a ring spinning machine, an exemplary construction of the drives of lower cylinders 20a-c out.
  • the division between the right side 26 and the left side 25 is symbolically represented by the dash-dotted lines in FIG. 2 below.
  • two drive motors 12 are connected to a lower cylinder 20 via a transmission 21 for one side of such a ring spinning machine.
  • the drive motors 12 are thus firmly coupled to one another on a lower cylinder 20.
  • a resolver 15 is seated on the shaft 16 on the right drive motor 12 in each case.
  • This output 19 drives a frequency converter (not shown). This can be designed similar to that in FIG. 1.
  • the frequency converter controls each drive motor via a main supply line 17 and secondary supply lines 18. If the structure in FIG. 2 corresponds in principle to that in FIG. 1, that is to say four drive motors per frequency converter, additional secondary feed lines 18 are provided from the main feed line 17 to the other two drive motors on the right side of the ring spinning machine.
  • the lower cylinders 20a-c can each represent a rear pull, middle pull and pull of drafting devices or the like.
  • the frequency converter 13 is pretended that it has to feed a single large motor. From this single motor to be fed, the frequency converter receives a drive signal or control signal via the resolver on a motor shaft or the like.
  • the frequency converter receives a drive signal or control signal via the resolver on a motor shaft or the like.
  • several, in particular four, drive motors are fed via the frequency converter 13 by means of the feed lines 17 and 18.
  • the total power of these four motors results in the power that the frequency converter has on a quasi pretreated single large one Has to generate drive motor.
  • it is important to match the line resistances and contact resistances in the leads to the drive motors. This is important so that each motor receives the same amount of electricity or is controlled identically.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Power Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Abstract

L'invention permet, selon un mode de réalisation, de créer un métier continu à filer présentant plusieurs bancs d'étirage dotés de cylindres inférieurs (20) respectivement longs. Au moins un cylindre inférieur (20) peut présenter plusieurs, notamment quatre, moteurs de commande (12). Les moteurs de commande (12) d'un cylindre inférieur (20) sont alimentés comme un moteur de commande unique par un convertisseur de fréquence (13) commun et donc de manière identique. Un moteur de commande (12a) présente un résolveur (15) destiné à la commande du convertisseur de fréquence. Il s'agit donc d'un servomoteur.
PCT/CH2002/000566 2001-10-15 2002-10-15 Mecanisme d'entrainement de bancs d'etirage d'un metier a filer WO2003033786A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2003536501A JP2005505704A (ja) 2001-10-15 2002-10-15 紡績機のドラフト機構のための駆動装置
EP02767031A EP1436449A1 (fr) 2001-10-15 2002-10-15 Mecanisme d'entrainement de bancs d'etirage d'un metier a filer

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10151647.9 2001-10-15
DE2001151647 DE10151647A1 (de) 2001-10-15 2001-10-15 Antrieb für Streckwerke einer Spinnereimaschine

Publications (1)

Publication Number Publication Date
WO2003033786A1 true WO2003033786A1 (fr) 2003-04-24

Family

ID=7703048

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH2002/000566 WO2003033786A1 (fr) 2001-10-15 2002-10-15 Mecanisme d'entrainement de bancs d'etirage d'un metier a filer

Country Status (6)

Country Link
EP (1) EP1436449A1 (fr)
JP (1) JP2005505704A (fr)
CN (1) CN100335695C (fr)
CH (1) CH695780A5 (fr)
DE (1) DE10151647A1 (fr)
WO (1) WO2003033786A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3575457A1 (fr) * 2018-05-29 2019-12-04 Maschinenfabrik Rieter AG Procédé de détermination des états de fonctionnement d'une machine textile ainsi que machine textile

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005054817A1 (de) * 2005-11-15 2007-05-24 Saurer Gmbh & Co. Kg Ringspinnmaschine mit Streckwerken
DE102006002386A1 (de) * 2006-01-17 2007-08-02 Saurer Gmbh & Co. Kg Streckwalzenmotor
CN101200823B (zh) * 2006-12-12 2010-09-01 天津工业大学 一种纺纱试验机
CN102031599B (zh) * 2011-01-25 2012-07-25 东华大学 一种细纱试验机
CN105200582A (zh) * 2015-09-13 2015-12-30 安徽中福毛纺制帽有限公司 一种新型并条机结构

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2911378A1 (de) * 1979-03-23 1980-10-02 Zinser Textilmaschinen Gmbh Ringspinn- oder ringzwirnmaschine
EP0349831A1 (fr) * 1988-07-06 1990-01-10 Maschinenfabrik Rieter Ag Système d'entraînement synchronisable
US6216430B1 (en) * 1999-03-06 2001-04-17 Zinser Textilmaschinen Gmbh Spinning machine with a multiplicity of electrical loads

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19637757B4 (de) * 1995-10-11 2005-06-09 Maschinenfabrik Rieter Ag Spinnmaschine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2911378A1 (de) * 1979-03-23 1980-10-02 Zinser Textilmaschinen Gmbh Ringspinn- oder ringzwirnmaschine
EP0349831A1 (fr) * 1988-07-06 1990-01-10 Maschinenfabrik Rieter Ag Système d'entraînement synchronisable
US6216430B1 (en) * 1999-03-06 2001-04-17 Zinser Textilmaschinen Gmbh Spinning machine with a multiplicity of electrical loads

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3575457A1 (fr) * 2018-05-29 2019-12-04 Maschinenfabrik Rieter AG Procédé de détermination des états de fonctionnement d'une machine textile ainsi que machine textile
US11673761B2 (en) 2018-05-29 2023-06-13 Maschinenfabrik Rieter Ag Method for determining operating conditions of a textile machine, and a textile machine

Also Published As

Publication number Publication date
CN1571868A (zh) 2005-01-26
DE10151647A1 (de) 2003-04-24
CN100335695C (zh) 2007-09-05
JP2005505704A (ja) 2005-02-24
EP1436449A1 (fr) 2004-07-14
CH695780A5 (de) 2006-08-31

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