EP0480357B1 - Métier à filer à anneaux - Google Patents

Métier à filer à anneaux Download PDF

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Publication number
EP0480357B1
EP0480357B1 EP19910117075 EP91117075A EP0480357B1 EP 0480357 B1 EP0480357 B1 EP 0480357B1 EP 19910117075 EP19910117075 EP 19910117075 EP 91117075 A EP91117075 A EP 91117075A EP 0480357 B1 EP0480357 B1 EP 0480357B1
Authority
EP
European Patent Office
Prior art keywords
drafting
spinning machine
motor
speed
inverter
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
Application number
EP19910117075
Other languages
German (de)
English (en)
Other versions
EP0480357A1 (fr
Inventor
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 EP0480357A1 publication Critical patent/EP0480357A1/fr
Application granted granted Critical
Publication of EP0480357B1 publication Critical patent/EP0480357B1/fr
Anticipated expiration legal-status Critical
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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
    • D01H1/32—Driving or stopping arrangements for complete machines

Definitions

  • the invention relates to an operating method for a spinning machine according to the preamble of independent claim 1 and a spinning machine according to the preamble of independent claim 6.
  • a spinning machine for individual changes in the speeds of the respective drive devices is designed in such a way that the speed curves of the drive devices with regard to the duration and time of the standstill of a device can be adapted according to the textile requirements during the start-up and shutdown, so that, for example, a drive is faster than that another is shut down or started up and comes to a standstill sooner or later than the other.
  • a controller for the drive device must have a program memory for storing speed curves of the drive devices, as well as control means which are capable of acting for one drive device independently of the other drive device, these control means being able to trigger, for example, a switching function in a countershaft transmission for the drafting system.
  • the control means can also be formed by a switch with an actuator for the drafting motor or also by an additional inverter, so that any speed can be driven in any drive device.
  • spindles S1 are driven by a drive device M1 via a gear GE1.
  • the drive device M1 can be a speed-controlled electric spindle motor.
  • a shaft WE can lead to a transmission GE2 and this to a countershaft transmission V, which is connected to a transmission GE for the drafting system S4.
  • a countershaft transmission V different drive speeds can be selected for the GE transmission.
  • a drafting arrangement motor M4 for example a synchronous motor, can also be arranged directly.
  • the spindle motor M1 and the drafting gear motor M4 or the countershaft transmission V are connected to a controller R, which sets the target frequencies FS for the spindle motor M1 and the target frequency FS 'for the drafting gear motor M4 via connecting lines between the controller and the spindle motor M1 or drafting gear motor M4 pretends.
  • a connecting line between the controller R and the countershaft transmission V may transmit the specified switching function FS '' for the countershaft transmission V.
  • the controller receives the specified programs for lowering the speed of the spindle motor M1, the drafting system motor M4 or for the switching function FS '' of Loss gear V from a program memory P. Depending on the yarn that is to be produced in the spinning machine, various programs can be called up.
  • a controller R controls, via a setpoint generator S, to which it transmits the setpoint frequency FS, an inverter W1, which supplies alternating current to motors M1 ... M4.
  • the inverter W1 is supplied with direct current via a rectifier G and a direct voltage intermediate circuit GZ.
  • a capacitor K can be arranged in the DC voltage intermediate circuit GZ and can absorb electrical energy fed back via the inverter W1 when the spinning machine is shut down.
  • the rectifier G is usually supplied by an AC voltage source W with 3-phase AC.
  • a switch SA with which the drafting motor M4 can be switched on.
  • a servomotor SM is provided for the changeover, the switching function FS 'being transmitted by the controller R.
  • operation is now carried out, for example, at a constant set frequency, so that the state of setpoint generator S remains unchanged.
  • the controller receives a shutdown pulse AI, for example from an operating station, the setpoint frequency FS of the inverter W1 is lowered via the setpoint generator S.
  • motors M1 ... M4 are braked. If the switch SA now remained in the original position, the speeds of the spindle motor M1 and of the drafting motor M4 would be reduced in a fixed ratio.
  • the drafting motor M4 can now reduce the drive speed in the drafting device S4 earlier and more than in the spindle drive while lowering the general speed level in the spinning machine.
  • the motors M1 to M4 are preferably designed as synchronous motors.
  • a rectifier G is connected to an AC voltage source W.
  • a second inverter W2 for the drafting motor M4 is connected in the DC intermediate circuit GZ.
  • the controller R in which the program memory P is shown as a component, controls both inverters W1 and W2 by transmitting the set frequencies FS or FS 'via connecting lines.
  • the controller R receives a shutdown pulse AI, the set frequency FS 'in the inverter W2 is first lowered in accordance with the program, while the set frequency FS of the inverter W1 is only reduced at a later point in time. This operating mode is preferable for weakly twisted yarn as described in the introduction.
  • the program memory P must be designed in such a way that program changes can be carried out in a simple manner on the spinning machine if this is necessary when changing over to another yarn to be produced.
  • the various options for carrying out the operating method are explained below with reference to FIG. 4.
  • the ordinate in the diagram shows speed N, time T runs in the direction of the abscissa.
  • the spindle speed is designated NSA or NSB
  • the drafting system speed is designated NW1, NW2, NW3 depending on the program.
  • a shutdown pulse is used AI the spindle shaft speed NSB continuously reduced from point C from point D to point E, to a standstill.
  • the drafting unit shaft speed NW3 drops from point H via point O in proportion to the spindle shaft speed NSA.
  • TG indicates a point in time from which the speed is reduced more than before.
  • the drafting system shaft speed NW1 can already be reduced from the point H ′′, while the spindle shaft speed NSB initially remains constant until the time TA3 and is only then reduced.
  • the time difference value DW1 lies between the times TA1 and TA3, at which the speed of the corresponding motors is reduced.
  • the shutdown pulse AI is received in controller R at time TA2.
  • the drafting unit shaft speed NW2 is then abruptly reduced from point H 'to the value at point L in accordance with FIG. 4 and then continuously reduced further, while the spindle shaft speed NSA is still kept at the original level up to point C' and only then drops.
  • the speeds of the spindle motor M1 and the drafting motor M4 are simultaneously reduced when receiving a shutdown pulse AI at the time TA3, the spindle shaft speed NSB running over time from point C to point D and the drafting shaft speed NW3 from point H to point H '''is constantly being lowered.
  • the drafting system motor M4 is then braked more strongly up to the point L ', since its target frequency FS' is reduced more, as a result of which the drafting system shaft speed NW3 drops to a lower level NW2 at the point L '.
  • the drafting shaft speed NW2 is steadily up to Point O and then further reduced to zero up to point E.
  • all speed profiles shown in FIG. 4 can be driven.
  • the switch SA according to FIG. 2 is actuated into the interruption position, the drafting system according to line NW3 runs out earlier than the spindles via points H-O'-E '.
  • the spindle shaft speed NSA before the drafting system shaft speed.
  • the shutdown pulse AI is received in controller R at time TA4.
  • the spindle shaft speed NSA is then lowered from point C 'to points D and E.
  • the drafting system shaft speed NW3 at point H via point O likewise reduced to zero at point E.
  • the spinning yarn between drafting device S4 and spindle S1 is rotated less until the spinning machine comes to a standstill, thereby preventing the formation of claws when the yarn is turned higher.

Landscapes

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

Claims (6)

  1. Méthode d'exploitation pour une machine à filer, avec un arrangement d'entraînement (M1) pour les broches (S1) et un autre arrangement d'entraînement (M4) pour le train d'étirage (S4), ainsi qu'avec un asservisseur (R) pour la commande des arrangements d'entraînement,
    caractérisée par le fait que,
    pour mettre la machine à filer hors de service, respectivement pour la diminution du régime de la machine à filer, avant le déclenchement de la machine, les nombres de tours (NSA, NW1) pour le train d'étirage (S4) et les broches (S1) ne sont pas réduits proportionnellement, mais sont réduits indépendamment les uns des autres, selon un programme prédéterminé, de sorte que le fil, compris entre les broches (S1) et le train d'étirage (S4), reçoit, après le déclenchement, plus ou moins de torsion que lors du filage continu.
  2. Méthode d'exploitation pour une machine à filer selon revendication 1, avec au moins un moteur de broches (M1) pour l'entraînement des broches (S1), et avec au moins un autre moteur de train d'étirage (M4) pour l'étirage de mèches, avec un changeur de fréquence qui est au moins constitué par un redresseur de courant (G) et un onduleur (W1),
    caractérisée par le fait que,
    pour mettre la machine à filer hors de service, respectivement pour la diminution du régime de la machine à filer, avant le déclenchement de la machine, le nombre de tours (NW1, NW2) du moteur d'entraînement (M4) pour le train d'étirage est réduit en premier lieu, a un moment arbitraire (TA1, TA2), et que le nombre de tours de l'arbre de broches (NSB) du moteur de broches (M1) n'est diminué qu'après un intervalle de temps (TA3 - TA1 = DW1 respectivement TA3 - TA2).
  3. Méthode d'exploitation selon revendication 2,
    caractérisée par le fait que,
    pour réduire le nombre de tours de l'arbre de train d'étirage (NW3), l'onduleur (W1) et le moteur de train d'étirage (M4) sont séparés prématurément par un interrupteur (SA).
  4. Méthode d'exploitation selon revendication 2 ou 3,
    caractérisée par le fait
    qu'un asservisseur (R) réduit en premier lieu la fréquence de consigne (FS') pour un onduleur (W2) du moteur de train d'étirage (M4) selon un programme prédéterminé, après la réception d'une impulsion d'arrêt (AI) venant d'une station de commande de la machine à filer, et que la fréquence de consigne (FS) pour l'onduleur (W1) du moteur de broches (M1) est réduite après un intervalle de temps (TA3 - TA2 respectivement TA3 - TA1).
  5. Méthode d'exploitation selon revendication 1, caractérisée par le fait
    que le nombre de tours de l'arbre de broches (NSA) est d'abord réduit, après la réception d'une impulsion d'arrêt (AI) dans un asservisseur (R), et que le nombre de tours de l'arbre de train d'étirage (NW3) est diminué seulement après un intervalle de temps (DW2).
  6. Machine à filer selon l'une des revendications précédentes, avec un arrangement d'entraînement (M1) pour les broches (S1) et un autre arrangement d'entraînement (M4) pour un train d'étirage (S4), ainsi qu'un asservisseur (R) pour la commande des arrangements d'entraînement,
    caractérisée par le fait que
    l'asservisseur (R) est conçu pour changer individuellement les nombres de tours (NSA, NW1) de chacun des arrangements d'entraînement, de façon à ce que les déroulements des nombres de tours (NSA, NW1) des arrangements d'entraînement peuvent être adaptés en ce qui concerne la durée et le moment de l'arrêt, indépendamment l'un de l'autre, selon les exigences de la technique des textiles, pendant l'augmentation et la réduction, et qu'une mémoire de programme (P) est accouplée à l'asservisseur (R), afin de mémoriser les déroulements des nombres de tours, et que des moyens d'asservissement (FS''V; FS', SM, SA, FS', W2) sont prévus pour un arrangement d'entraînement (M4), qui sont capables de réagir indépendamment des moyens d'asservissement de l'autre arrangement d'entraînement (M1), et où les moyens d'asservissement sont représentés soit
    - par une fonction d'interruption (FS'') dans une transmission intermédiaire (V) pour le train d'étirage (S4), ou
    - par un interrupteur (SA) avec un servomoteur (SM) pour le moteur du train d'étirage (M4), ou
    - par un onduleur (W2).
EP19910117075 1990-10-09 1991-10-08 Métier à filer à anneaux Expired - Lifetime EP0480357B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3245/90 1990-10-09
CH324590 1990-10-09

Publications (2)

Publication Number Publication Date
EP0480357A1 EP0480357A1 (fr) 1992-04-15
EP0480357B1 true EP0480357B1 (fr) 1995-04-19

Family

ID=4251795

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910117075 Expired - Lifetime EP0480357B1 (fr) 1990-10-09 1991-10-08 Métier à filer à anneaux

Country Status (2)

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EP (1) EP0480357B1 (fr)
DE (1) DE59105248D1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10037513B4 (de) 1999-09-20 2010-09-30 Maschinenfabrik Rieter Ag Verfahren zum Steuern einer Ringspinnmaschine und Spinnmaschine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2753924C2 (de) * 1977-12-03 1984-02-02 Zinser Textilmaschinen Gmbh, 7333 Ebersbach Antriebseinrichtung für Arbeitsorgane einer Spinnerei- oder Zwirnereimaschine
DE3309370A1 (de) * 1983-03-16 1984-09-20 Zinser Textilmaschinen Gmbh, 7333 Ebersbach Verfahren und antriebsvorrichtung zur einflussnahme auf das hochfahren und auslaufen von zwei asynchronmotoren
DE3822420A1 (de) * 1988-07-02 1990-01-04 Skf Textilmasch Komponenten Ringspinn-/oder ringzwirnmaschine
GB2229457A (en) * 1989-03-23 1990-09-26 Hollingsworth Ring spinning doubling and twisted frames with switched reluctance drive spindle motor

Also Published As

Publication number Publication date
EP0480357A1 (fr) 1992-04-15
DE59105248D1 (de) 1995-05-24

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