EP1766119B1 - Unite d'entrainement pour metier a tisser et metier a tisser equipe de cette unite d'entrainement - Google Patents

Unite d'entrainement pour metier a tisser et metier a tisser equipe de cette unite d'entrainement Download PDF

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Publication number
EP1766119B1
EP1766119B1 EP05760076A EP05760076A EP1766119B1 EP 1766119 B1 EP1766119 B1 EP 1766119B1 EP 05760076 A EP05760076 A EP 05760076A EP 05760076 A EP05760076 A EP 05760076A EP 1766119 B1 EP1766119 B1 EP 1766119B1
Authority
EP
European Patent Office
Prior art keywords
drive unit
electric motor
braking
unit according
loom
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.)
Not-in-force
Application number
EP05760076A
Other languages
German (de)
English (en)
Other versions
EP1766119A1 (fr
Inventor
Wilhelm Herrlein
Michael Lehmann
Manuel Renz
Dieter Mayer
Horst Hellmuth
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.)
Lindauer Dornier GmbH
Original Assignee
Lindauer Dornier GmbH
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
Priority claimed from DE102004034117A external-priority patent/DE102004034117A1/de
Application filed by Lindauer Dornier GmbH filed Critical Lindauer Dornier GmbH
Publication of EP1766119A1 publication Critical patent/EP1766119A1/fr
Application granted granted Critical
Publication of EP1766119B1 publication Critical patent/EP1766119B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03J—AUXILIARY WEAVING APPARATUS; WEAVERS' TOOLS; SHUTTLES
    • D03J1/00—Auxiliary apparatus combined with or associated with looms
    • D03J1/006—Controlling a group of looms
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D51/00—Driving, starting, or stopping arrangements; Automatic stop motions
    • D03D51/02—General arrangements of driving mechanism

Definitions

  • the invention relates to a drive unit for a loom with a variable in speed and direction of rotation electric motor, preferably with an additional flywheel and with an electromagnetically switchable clutch-brake combination.
  • the invention further relates to a weaving machine with such a drive unit and with shedding means, wherein the drive of the shedding means selectively derived from a drive unit of the loom or a separate drive, with a main drive shaft and wherein the main drive shaft is connected to the drive unit.
  • the drive unit has at least one variable speed and direction of rotation electric motor.
  • the weaving machine also has an electromagnetically switchable clutch / brake combination arranged between the electric motor and the main drive shaft and preferably an additional flywheel mass arranged between the electric motor and the clutch / brake combination.
  • DE-OS 1 808 469 is a drive unit for a weaving machine is known, which should allow drive unit to bring the loom quickly to standstill after a standstill and record small Parallelticiansunstimmtechniken the engine or its flywheel or the brake ring.
  • the clutch disc is rotatably connected via a drive plate with an axially immovable output shaft and for transmitting the torque are on the one hand to the clutch disc and on the other hand attached to the output shaft, elastically deformable transmission means provided.
  • elastically deformable transmission means provided.
  • a drive for a weaving machine with a main drive motor which is connected by means of a gearbox with first elements to be driven and with second driven elements.
  • the first elements to be driven are understood to mean essentially the shed forming elements which are designed as dobby machines, as eccentric machines, as jacquard machines or as another type of shed forming means.
  • the second driven elements here include essentially the batten and - in the case of rapier - the gripper drives.
  • a switching gear is arranged, which is adjustable in different switching positions such that in a switching position, a drive connection between the main drive motor and the first and second elements to be driven consists and that in another switching position the Drive connection is interrupted to the first or second elements to be driven.
  • the drive unit should be able to accelerate the weaving machine within a period of a weaving cycle to a predetermined operating speed and vice versa, the weaving machine from an operating speed within a weaving cycle can be brought to a standstill, so be slowed down to the operating speed 0. Furthermore, the drive unit should largely avoid fluctuations in the operating speed of the loom and be suitable to operate the loom waiving a separate electric motor drive with associated electronic control and gear means in slow speed. The drive unit should also allow maintenance work, in particular on the clutch-brake combination, without a significant assembly effort on the drive unit is required.
  • the drive unit for the weaving machine comprises a variable in speed and direction, consisting of rotor and stator electric motor, an additional flywheel, consisting of non-rotatable parts and rotatable parts, electromagnetically switchable clutch-brake combination, which is housed in a mounting bell.
  • a first end of the mounting bell is connected via suitable arrangements with the loom facing the shield of the electric motor.
  • a second end of the mounting bell is rotatably mounted on suitable provisions on a side cheek of the loom.
  • an additional flywheel is mentioned here, this may consist in that the rotor of the electric motor has a comparatively large diameter with a comparatively large mass in order to take over the function of the flywheel known from the prior art.
  • the additional flywheel can therefore be an integral part of the rotor according to the invention.
  • the additional flywheel may be an additional component in another embodiment of the invention, which is connected to the free end of the shaft of the rotor, in such a way that the additional flywheel as a rotationally symmetrical body between the electric motor and the electromagnetically switchable clutch brake Combination is arranged.
  • the aforementioned suitable arrangements for connecting the mounting bell with the engine end shield include means that are pronounced as complete or partial housing of the additional flywheel.
  • the additional flywheel as an additional component can also be designed as a fan for dissipating the engine heat.
  • the electric motor of the drive unit is gem. the invention, an induction motor with squirrel cage rotor. To change its speed, the electric motor with a power electronic actuator, operated in the manner of a frequency converter, which frequency converter is then designed as a voltage source inverter.
  • Transducer (generator) effective electric motor is converted into electrical energy, which is preferably fed via a power regenerative power electronic actuator in the electrical supply network.
  • a feed unit is provided for feeding the electrical energy during motor operation of the drive unit and for the power feedback in generator operation of the drive unit, for example, a separate feed unit from the feed unit or the feed unit is designed netzgurcspeiseschreib for the purpose of this power recovery.
  • the electric motor can be reversed, the coils of the electric motor having a winding which has at least two different pole pairs.
  • a weaving machine comprises shed forming means, a main drive shaft, at least one drive unit which can be coupled to the main drive shaft by means of a clutch-brake combination, which drive unit has at least one variable speed and rotating electric motor consisting of rotor and stator and which is preferably equipped with an additional flywheel mass ,
  • the electric motor is operated with a power electronic actuator.
  • the power electronic actuator is preferably designed as a frequency converter and preferably aists fundamentalnikumrichter, while the power electronic actuator is preferably regenerative power to the kinetic energy from the braking process of the loom and its rotationally driven components and from the drive unit itself via the effective as a converter (generator) electric motor To be able to feed drive unit as electrical energy into the electrical supply network.
  • the drive of the shed forming means can either be derived from the main drive shaft of the weaving machine or the shed forming means are driven separately, for example by means of at least one own electric motor.
  • FIG. 1 there is an electric motor drive unit 1 for a weaving machine, which is only hinted here by a side wall 9, from a variable speed and direction of rotation electric motor 2, an additional flywheel 3 and an electromagnetically switchable clutch-brake combination. 4
  • the electric motor 2 is, as in the FIGS. 3 to 6 represented, fed via a frequency converter 13 with electrical energy.
  • the housing 6 in turn is then connected via further connecting means 10 with the bearing plate 7 of the electric motor 2.
  • FIG. 3 shows a simplified or schematic representation of a known from the prior art frequency converter 13 for the electric motor 2 of the drive unit 1 according to the invention.
  • the feeding network 14, so the supply network is shown with three conductors 14.1, 14.2 and 14.3 as a three-phase three-phase network.
  • the frequency converter 13 associated with the feed unit 15 converts the mains voltage into a voltage with a usually high DC voltage component.
  • the feed unit 15 is not able to feed back electrical energy from the voltage intermediate circuit 16 into the supply network 14 in this exemplary embodiment.
  • Such a non-regenerative feed unit is often performed in the art as a so-called uncontrolled B6 bridge.
  • a capacitance 17 is usually provided which, inter alia, serves to stabilize the voltage in the voltage intermediate circuit 16.
  • the inverter 18 converts the voltage from the voltage intermediate circuit 16 back to an alternating or rotary voltage; ie one has again an AC or three-phase system 19, which may differ from the feeding network 14, especially in rms voltage, frequency, phase angle and strand number. In the FIG. 3 For example, it is a three-phase three-phase system 19.
  • the feed unit 15 can not pass this energy to the feeding network 14 and the capacitance 17 can only absorb this energy to a certain extent, since otherwise the voltage in the voltage intermediate circuit 16 becomes unacceptably high.
  • a switch 20 often referred to in the art as a chopper or brake chopper, this energy is instead supplied to the at least one electrical braking resistor 21, which converts it into heat.
  • the lengths of on and off times of the switch 20 are determined taking into account the level of voltage in the voltage intermediate circuit 16.
  • the kinetic energy of the engine 2 itself and the possibly present at least one flywheel 3 is very high. With frequent braking arises in the braking resistor 21 correspondingly much heat.
  • the braking resistor 21 must therefore be made correspondingly large in order to be able to radiate the heat to the environment. That is, for example, that a control cabinet, in which the braking resistor 21 is installed, must be correspondingly large and / or costly to be cooled. Therefore, according to the invention, using an inverter 18, either DC braking or countercurrent braking or short-circuit braking of the electric motor 2 is to be carried out, which except the electric motor 2, the optionally present at least one flywheel 3, the co-rotating parts 4b, 4c of the clutch brake Combination 4, where appropriate, the loom and possibly further components decelerates accordingly.
  • the procedures for DC braking, for countercurrent braking and for short-circuit braking itself are adequately described in the prior art.
  • the braking resistor 21 and also the switch 20 can be designed correspondingly smaller, as well as the necessary radiating surface for the cabinet heat.
  • the proportions of the kinetic energy converted into heat via the braking resistor 21 and via DC braking or countercurrent braking or short-circuit braking can be influenced in relation to one another - preferably by the type of driving of the inverter 18 and the switch 20. If necessary, this allows the operator / operator eg by giving recommendations or it is done independently by means of taxation.
  • the switch 20 and the braking resistor 21 can be completely dispensed with. The arrangement acc. FIG. 3 then reduces around the switch 20 and the braking resistor 21.
  • FIG. 4 shows a correspondingly reduced arrangement of a frequency converter 13th
  • the feed unit 25 has the same function as the feed unit 15 in FIG. 3 , but is in contrast to the feed unit 25 in figure 5 In addition, it is able to feed energy back from the voltage intermediate circuit 26 into the feeding network 24.
  • Such feed units are state of the art and in power electronics often constructed like an inverter. So can the under FIG. 3 described kinetic energy are fed back as electrical energy in the feeding network 24. This causes the electric Braking resistor 31 and the switch 30 can be designed correspondingly smaller, as well as the necessary radiating surface for the heat of the cabinet.
  • the proportions of the kinetic energy converted via heat via the braking resistor 31 and the energy fed back into the supply network 24 can be influenced in relation to one another, preferably by the type of activation of the feed unit 25 and of the switch 30. If necessary, this can be made possible for the operator / operator, eg by giving recommendations or it is done independently by control means. Optionally, can be completely dispensed with the switch 30 and the braking resistor 31; the arrangement in FIG. 5 then reduces to these two aforementioned components.
  • FIG. 6 shows a correspondingly reduced arrangement of a frequency converter 23.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Stopping Of Electric Motors (AREA)
  • Replacement Of Web Rolls (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Claims (10)

  1. Unité de commande pour un métier à tisser, comprenant :
    un moteur électrique constitué par un rotor (2a) et par un stator (2b) ;
    une masse centrifuge supplémentaire (3) qui est reliée en antirotation à l'arbre du moteur électrique (2) ; et
    une combinaison frein-embrayage commutable constituée par des éléments antirotatifs (4a) et par des éléments rotatifs (4b, 4c), par laquelle l'unité de commande peut venir s'accoupler à l'arbre de commande principal (11) du métier à tisser ;
    la combinaison frein-embrayage (4) venant se loger dans une cloche de montage (5) dont la première extrémité est reliée à une flasque (7) du moteur électrique (2), tournée vers le métier à tisser, et dont la deuxième extrémité est reliée en antirotation à une joue latérale (9) du métier à tisser ;
    caractérisée en ce qu'on prévoit les particularités suivantes :
    a) on prévoit une combinaison frein-embrayage (4) commutable par voie électromagnétique ;
    b) le moteur électrique (2) est un moteur asynchrone à vitesse de rotation et à sens de rotation variables, comprenant un rotor en court-circuit ;
    c) la cloche de montage (5) est reliée via une enceinte (6) pour la masse centrifuge supplémentaire (3), par un moyen de liaison (10) à la flasque (7) du moteur électrique (2) ;
    d) le rotor (2a) du moteur électrique (2), la masse centrifuge supplémentaire (3), les éléments rotatifs (4b, 4c) et l'arbre de commande principal (11) du métier à tisser possèdent le même axe de rotation (12) ;
    e) le moteur électrique (2) est entraîné avec un organe de réglage pour l'électronique de puissance à la manière d'un convertisseur statique de fréquence (13, 23) qui est réalisé sous la forme d'un convertisseur statique de fréquence à circuit intermédiaire de tension pour pouvoir entreprendre, en utilisant un onduleur (18), soit un freinage par injection de courant continu, soit un freinage par contre-courant, soit un freinage par court-circuit, du moteur électrique (2).
  2. Unité de commande selon la revendication 1, caractérisée en ce que le moteur électrique (2) est du type à nombre de pôles variable.
  3. Unité de commande selon la revendication 1 ou 2, caractérisée en ce que l'organe de réglage pour l'électronique de puissance est capable d'alimenter le réseau en retour.
  4. Unité de commande selon la revendication 3, caractérisée en ce que, aussi bien l'alimentation dans le cas d'un fonctionnement par moteur de l'unité de commande (1) que l'alimentation du réseau en retour dans le cas d'un fonctionnement par génératrice de l'unité de commande ont lieu via une unité d'alimentation (15, 25) réalisée de manière correspondante.
  5. Unité de commande selon la revendication 3, caractérisée en ce que l'alimentation, dans le cas d'un fonctionnement par moteur de l'unité de commande (1) a lieu via une première unité d'alimentation et l'alimentation du réseau en retour dans le cas d'un fonctionnement par génératrice de l'unité de commande (1) a lieu via une deuxième unité réalisée de manière correspondante sous la forme d'une unité d'alimentation en retour.
  6. Unité de commande selon l'une quelconque des revendications 1 à 5, caractérisée en ce que le convertisseur statique de fréquence (13, 23) réalisé sous la forme d'un convertisseur statique de fréquence à circuit intermédiaire de tension (13, 23) est relié via un commutateur (20) à une résistance de freinage (21) à laquelle est acheminée l'énergie électrique que l'on obtient lors d'un fonctionnement par génératrice de l'unité de commande (1), ladite énergie étant transformée en chaleur.
  7. Unité de commande selon l'une quelconque des revendications 3 à 6, caractérisée en ce que les proportions de l'énergie cinétique transformée en chaleur via le freinage par injection de courant continu ou le freinage par contre-courant ou le freinage par court-circuit et via le cas échéant une résistance de freinage (31) et l'énergie à alimenter en retour dans le réseau d'alimentation (24, 29) peuvent être influencées l'une par rapport à l'autre.
  8. Unité de commande selon l'une quelconque des revendications 1 à 7, caractérisée en ce que la masse cinétique supplémentaire (3) fait partie intégrante du rotor (2a).
  9. Unité de commande selon l'une quelconque des revendications 1 à 7, caractérisée en ce que la masse cinétique supplémentaire (3) est réalisée sous la forme d'une roue de ventilateur du moteur électrique et est reliée, à titre de composant constitutif supplémentaire, à l'extrémité libre de l'arbre du rotor (2a).
  10. Métier à tisser comprenant une unité de commande selon l'une quelconque des revendications 1 à 9.
EP05760076A 2004-07-15 2005-06-24 Unite d'entrainement pour metier a tisser et metier a tisser equipe de cette unite d'entrainement Not-in-force EP1766119B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004034117A DE102004034117A1 (de) 2004-07-15 2004-07-15 Antriebseinheit für eine Webmaschine, Webmaschine und Webmaschinenverbund
PCT/DE2005/001133 WO2006005295A1 (fr) 2004-07-15 2005-06-24 Unite d'entrainement pour metier a tisser et metier a tisser equipe de cette unite d'entrainement

Publications (2)

Publication Number Publication Date
EP1766119A1 EP1766119A1 (fr) 2007-03-28
EP1766119B1 true EP1766119B1 (fr) 2010-03-24

Family

ID=34979415

Family Applications (2)

Application Number Title Priority Date Filing Date
EP05760080A Withdrawn EP1766120A1 (fr) 2004-07-15 2005-06-24 Regroupement energetique de metiers à tisser
EP05760076A Not-in-force EP1766119B1 (fr) 2004-07-15 2005-06-24 Unite d'entrainement pour metier a tisser et metier a tisser equipe de cette unite d'entrainement

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP05760080A Withdrawn EP1766120A1 (fr) 2004-07-15 2005-06-24 Regroupement energetique de metiers à tisser

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EP (2) EP1766120A1 (fr)
AT (1) ATE462034T1 (fr)
DE (2) DE102004063925B4 (fr)
WO (2) WO2006005294A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110417184A (zh) * 2019-08-06 2019-11-05 吴江市盛洲纺机配件有限公司 一种用于织机的一体式可控定子调速电机
DE102021113626A1 (de) * 2021-05-26 2022-12-01 Deere & Company Antriebsanordnung einer Konditioniereinrichtung eines Feldhäckslers mit einem elektrischen Antriebsstrang

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH466828A (de) * 1967-12-04 1968-12-15 Fischer Ag Georg Antriebsaggregat, insbesondere für Webmaschinen
CS260693B1 (en) * 1987-01-15 1989-01-12 Jiri Janecek Electronic switching commutator for textile machine drive
SE508237C2 (sv) * 1993-10-18 1998-09-14 Texo Ab Anordning vid drivorgan för drivaxel i en vävmaskin samt förfarande för att utnyttja anordningen vid drivorgan i vävmaskin
BE1011560A3 (nl) * 1997-11-21 1999-10-05 Picanol Nv Weefmachine en werkwijze voor het sturen en/of het starten en/of het stoppen van een aandrijfmotor.
BE1013175A3 (nl) * 1999-12-10 2001-10-02 Picanol Nv Aandrijfsysteem voor een machine.
DE10061717B4 (de) * 2000-12-12 2006-01-26 Lindauer Dornier Gmbh Antriebsanordnung für eine Webmaschine und Fachbildemaschine

Also Published As

Publication number Publication date
DE102004063925B4 (de) 2006-12-28
DE502005009278D1 (de) 2010-05-06
EP1766119A1 (fr) 2007-03-28
WO2006005294A1 (fr) 2006-01-19
DE102004063925A1 (de) 2006-02-16
WO2006005295A1 (fr) 2006-01-19
ATE462034T1 (de) 2010-04-15
EP1766120A1 (fr) 2007-03-28

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