EP1559816B1 - Fachbildungsvorrichtung, Webmaschine mit einer solchen Vorrichtung und durch diese Vorrichtung ausgeführtes Verfahren - Google Patents

Fachbildungsvorrichtung, Webmaschine mit einer solchen Vorrichtung und durch diese Vorrichtung ausgeführtes Verfahren Download PDF

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Publication number
EP1559816B1
EP1559816B1 EP05356019A EP05356019A EP1559816B1 EP 1559816 B1 EP1559816 B1 EP 1559816B1 EP 05356019 A EP05356019 A EP 05356019A EP 05356019 A EP05356019 A EP 05356019A EP 1559816 B1 EP1559816 B1 EP 1559816B1
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Prior art keywords
computer
signal
actuators
representative
actuator
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EP05356019A
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English (en)
French (fr)
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EP1559816A3 (de
EP1559816A2 (de
Inventor
Dominique Braun
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Staubli Faverges SCA
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Staubli Faverges SCA
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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C13/00—Shedding mechanisms not otherwise provided for
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C3/00—Jacquards
    • D03C3/20—Electrically-operated jacquards
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C3/00—Jacquards
    • D03C3/20—Electrically-operated jacquards
    • D03C3/205—Independently actuated lifting cords
    • 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 shedding device on a loom and to a loom equipped with such a device.
  • the invention also relates to a method of forming the crowd on such a craft.
  • the invention intends to remedy more particularly, by proposing a crowd-forming device which can comprise a large number of actuators and in which the information flows are optimized and the calculation means are not too important.
  • control means of the actuators are distributed between the first calculator or computers, on the one hand, and the second or second computers, on the other hand, these computers can be standard products whose reliability and cost are well controlled. This distribution makes it possible to optimize the flow of information between the computers.
  • the invention also relates to a loom equipped with a shedding device as previously described.
  • a loom can operate at high speed without the limitations of known materials.
  • the first computer can address the parameters to the second computer at regular intervals.
  • the displacement profile can be defined by several parameters, in particular by its amplitude and / or timing in relation to the position of the loom in its cycle, the profile being assigned individually to each actuator.
  • the loom M shown diagrammatically in FIG. 1 is equipped with warp yarns 1 each passing through an eyelet 2 of a heddle 3 animated by a vertical oscillation movement represented by the double arrow F 1 , this movement being generally perpendicular to the direction of movement of the weft threads represented by the double arrow F 2 .
  • Each arm is connected by a cord 4 to a pulley 5 driven in rotation by an electric servomotor 6.
  • each arm 3 is connected by a rod 7 to a return spring 8 secured to the frame 9 of the loom M.
  • the number of actuators 6 of the trade M can be very important, for example of the order of 10 000.
  • a central computer C 1 is used, in conjunction with a remote computer C 21 .
  • the computer C 21 is disposed near the servomotors 6 that it controls, while the computer C 1 is relatively remote.
  • the computer C 21 is connected to the central computer C 1 by means of an electrical connection L 21 through which can flow one or more electrical signals representative of control parameters transmitted by the computer C 1 to the computer C 21 .
  • the computer C 1 receives a signal S 1 representative of the instantaneous position of the trade M in its cycle, for example the instantaneous position ⁇ of its main shaft 10.
  • the computer C 1 is also connected to a unit U 1 in which are stored the references of the desired armor. Depending on the armor to be produced, the computer receives from the unit U 1 a signal S 2 representative of the type of movement profile that must follow each rail 3 actuated by each servomotor 6 1 ... 6 k controlled by the computer C 21 .
  • FIG. 3 Several types of displacement profiles are known from the unit U 1 and can have the form shown in FIG. 3. These types of profile correspond to the types of movement of an eyelet 2 as a function of the position ⁇ of the loom at one instant. t , in a vertical direction ZZ 'corresponding to the direction of the double arrow F 1 .
  • the profile types P 1 , P 3 and P 5 correspond to a lowering of the position of an eyelet, whereas the profile types P 2 , P 4 and P 6 correspond to an elevation of this position.
  • the type of profile P 7 corresponds to maintaining a low position of an eyelet so that the type of profile P 8 corresponds to holding in the high position.
  • the signal S 2 corresponds, for each actuator 6 k controlled by the computer C 21 , to the reference of the profile type P m which must be followed by the beam 3 or the eyelet 2 controlled by this actuator.
  • the computer C 1 is thus able to transmit to the computer C 21 a signal S 21 which comprises, for each actuator 6 1 ... 6 k controlled by the computer C 21 , the reference of the type of profile P 1 to P 8 to be followed in the subsequent period of time.
  • the signal S 21 comprises, for each servomotor 6 1 ... 6 k the reference of the profile type P m to follow, k can have a value between 1 to 10000 in the example shown, then that ma a value between 1 and 8.
  • the signal S 21 also comprises a component relating to the value of the position ⁇ of the loom in its cycle at the instant t where it is transmitted, which allows a synchronization of the actuators 6.
  • the signal S 21 is relatively simple and can flow easily through the link L 21 .
  • the position of the trade in its cycle is transmitted at a higher frequency than the references of the profile types to follow.
  • a decoupling of information about the profile types and information about the position of the trade is implemented.
  • the computer C 21 can then determine for each servomotor 6 1 ... 6 k that it controls the value of a parameter K 1 ... K k of command representing the setpoint of the rotor of this actuator, that is to say in practice of its pulley 5. This determination can take place because the computer C 21 is provided with a memory M 21 forming a library in which are stored values representative of each of the profile types P 1 to P 8 or algorithms for calculating these values.
  • the computer C 21 is able to calculate the parametric profile of displacement of the beam 3 driven by each of the actuators 6 1 ... 6 k that it controls.
  • the position setpoint of each actuator is calculated in the computer C 21 for a given period ⁇ t until a new signal S 21 is received from the computer C 1 .
  • the setpoint value K 1 .... K k of each actuator 6 1 ... 6 k is a succession of instantaneous reference values.
  • the calculated value K 1 ... K k thus calculated is then entered in the form of a signal S ' 211 ... S' 21k in a control unit A 211 ... A 21k respectively dedicated to the control of each actuator 6 1 ... 6 k .
  • each of the remote computers C 22 , C 23 ... C 2i receives from the central computer C 1 a signal S 22 , S 23 ... S 2i which enables it to control in turn the actuators 6 1 to 6 k to which it transmits a signal S ' 221 , S' 22k , S ' 231 , S' 23k ... through a control unit A 221 , ... A 22k , A 231 , ... A 23k,. ..
  • the signal S ' 2ik transmitted by a second computer C 2i to an actuator 6 k comprises information relating to the amplitude A of the displacement between the high and low points of a profile P m and its setting relative to the position of the loom in its cycle, for example the setting Dt of the point of inflection Q with respect to a reference instant t o .
  • the flow of information between the central computer C 1 and the remote computers C 21 , C 22 ... C 2i is minimized insofar as it only includes the position of the craft in its cycle and the reference of the type of profile P m to follow, the calculation of the position setpoint of each actuator taking place in the remote computers which can be of relatively modest calculation capacity, such as the central computer.
  • the invention has been shown with electric rotary actuators. However, it applies to any type of electric actuator, including linear.
  • the invention has been represented with electrical connections L 21 ... L 2i star between the central computer and remote computers. Of course, these links can be made by a common bus.
  • the invention has been shown in the case where only one central computer is used. In practice, several such computers can be used, each of them being associated with several remote computers.
  • the invention has been represented with eight types of displacement profile, the number of profile types being variable at the choice of the designer of the device or its user.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Woven Fabrics (AREA)
  • Container Filling Or Packaging Operations (AREA)

Claims (10)

  1. Jacquard-Fachbildungsvorrichtung, mehrere elektrische Betätigungselemente und Mittel zur Steuerung der Betätigungselemente umfassend, dadurch gekennzeichnet, dass die Steuermittel umfassen:
    - mindestens einen ersten Rechner (C1) und
    - mindestens einen zweiten Rechner (C21... C2i), der geeignet ist, mehrere Betätigungselemente (6 ... 6k) mittels eines Signals (S'211..., S'21k, ... S'2ik) zu steuern, das für mindestens einen Parameter (K1 ... Kk) repräsentativ ist, der von dem zweiten Rechner aus mindestens einem Signal (S21 ... S2i) bestimmt wird, das von dem ersten Rechner empfangen wird und mindestens für einen anderen Parameter (Θn, Pm, A, Dt) repräsentativ ist.
  2. Jacquard-Fachbildungsvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der zweite Rechner (C21 ... C2i) in Bezug auf den ersten Rechner (C1) verlagert ist, wobei der zweite Rechner näher an den von ihm gesteuerten Betätigungselementen (6 ... 6k) ist als der erste Rechner.
  3. Jacquard-Fachbildungsvorrichtung nach einem der vorhergehenden Ansprüchen, dadurch gekennzeichnet, dass der zweite Rechner (C21 ... C2i) mit Berechnungsmitteln ausgerüstet ist, die geeignet sind, aus dem oder den von dem ersten Rechner (C1) erhaltenen Signalen (S'21...S'2i) für einen gegebenen Zeitraums (Δt) den Sollwert der Position (Kk) eines beweglichen Teils (5) von jedem der von ihm gesteuerten Betätigungselementen (6 ... 6k) zu berechnen.
  4. Jacquard-Fachbildungsvorrichtung nach einem der vorhergehenden Ansprüchen, dadurch gekennzeichnet, dass die Betätigungselemente (6) rotierend und geeignet sind, eine Rolle (5) zum Aufwickeln eines Seilelementes (4) zum Antrieb einer Helfe (3) anzutreiben, und dass der zweite Rechner (C21... C2i) geeignet ist, den Sollwert der Winkelposition (Kk) der Rolle über einen gegebenen Zeitraum (Δt) zu bestimmen.
  5. Jacquard-Fachbildungsvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Signal (S21 ... S2i), das von dem ersten Rechner (C1) dem zweiten Rechner (C21 ... C21) übertragen wird, repräsentativ einerseits für die Position (Θ) der Webmaschine (M) in ihrem Arbeitszyklus zu einem Zeitpunkt (t) und andererseits für ein Verschiebungsprofil (Pm) ist, das für ein bewegliches Organ (2, 3) ausgewählt ist, das von jedem von dem zweiten Rechner gesteuerten Betätigungselement (6 ... 6k) verschoben wird.
  6. Jacquard-Fachbildungsvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sie mehrere zweite Rechner (C21, ... C2i) umfasst, die Signale (S21 ... S2i) von einem selben Rechner (C1) empfangen.
  7. Webmaschine (M) ausgerüstet mit einer Vorrichtung zur Fachbildung (2-10, C1, C21 ... C21) nach einem der vorherigen Ansprüche.
  8. Verfahren zur Fachbildung an einer webmaschine für die Steuerung von Arkaden einer Jacquard-Schaftmaschine mittels elektrischer Betätigungselemente, die von berechneten Parametern gesteuert werden, dadurch gekennzeichnet, dass es die Schritte umfasst, die darin bestehen:
    - einen für die Position (Θ) der Webmaschine in ihrem Arbeitszyklus repräsentativen Parameter an einen Rechner (C1) und zu gegebenen Zeitpunkten zu übertragen (S1);
    - jedem Betätigungselement (6 ... 6k) einen Profiltypus für die Verschiebung eines beweglichen Organs (3) zuzuordnen (U1), das von dem Betätigungselement verschoben wird und in dem ersten Rechner mindestens einen Parameter (Pm) zu bestimmen, der repräsentativ für den Profiltypus der Verschiebung ist;
    - an einen zweiten Rechner (C21 ... C2i) mindestens ein Signal (S21 ... S2i) zu richten, das von dem ersten Rechner erstellt wird und für die Parameter repräsentativ ist;
    - in dem zweiten Rechner und aus dem vom ersten Rechner erhaltenen Signal mindestens einen Parameter (Kk) zur Steuerung mindestens eines Betätigungselementes während eines vorbestimmten Zeitraums zu berechnen und
    - dem Betätigungselement ein von dem zweiten Rechner erstelltes (S'2ik ... S'2ik) und für den Parameter (K1 ... Kk) repräsentatives Signal zu übertragen, das in dem zweiten Rechner (C21 ... C2i) berechnet wird.
  9. Verfahren nach Anspruch 8, dadurch gekennzeichnet, dass der erste Rechner (C1) das Signal (S21 ...S2i) an den zweiten Rechner (C21 ... C2i) in gleichmäßigen Intervallen (Δt) adressiert.
  10. Verfahren nach einem der Ansprüche 8 oder 9, dadurch gekennzeichnet, dass das Profil (Pm) der Verschiebung des beweglichen Organs (3) durch mehrere Parameter, insbesondere durch seine Amplitude (A) und/oder seine zeitliche Ausrichtung (Dt) in Bezug auf die Position der Maschine in ihrem Zyklus definiert ist, wobei das Profil individuell jedem Betätigungselement (6) zugeordnet ist.
EP05356019A 2004-01-29 2005-01-28 Fachbildungsvorrichtung, Webmaschine mit einer solchen Vorrichtung und durch diese Vorrichtung ausgeführtes Verfahren Active EP1559816B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0400843 2004-01-29
FR0400843A FR2865741B1 (fr) 2004-01-29 2004-01-29 Dispositif de formation de la foule, metier a tisser equipe d'un tel dispositif et procede mis en oeuvre avec un tel dispositif

Publications (3)

Publication Number Publication Date
EP1559816A2 EP1559816A2 (de) 2005-08-03
EP1559816A3 EP1559816A3 (de) 2006-04-12
EP1559816B1 true EP1559816B1 (de) 2007-05-30

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Application Number Title Priority Date Filing Date
EP05356019A Active EP1559816B1 (de) 2004-01-29 2005-01-28 Fachbildungsvorrichtung, Webmaschine mit einer solchen Vorrichtung und durch diese Vorrichtung ausgeführtes Verfahren

Country Status (6)

Country Link
EP (1) EP1559816B1 (de)
CN (1) CN1648303B (de)
AT (1) ATE363557T1 (de)
DE (1) DE602005001208T2 (de)
FR (1) FR2865741B1 (de)
RU (1) RU2359076C2 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2902444B1 (fr) 2006-06-16 2008-08-29 Staubli Faverges Sca Dispositif de formation de la foule de type jacquard, metier a tisser equipe d'un tel dispositif et procede de formation de la foule sur un tel metier
FR2914321B1 (fr) 2007-03-30 2009-05-08 Staubli Faverges Sca Metier a tisser et procede de tissage de velours epingle simple nappe
FR2953224B1 (fr) * 2009-11-27 2011-12-30 Staubli Sa Ets Systeme et methode de controle d'une mecanique jacquard, mecanique jacquard et metier a tisser equipes d'un tel systeme
FR2956414B1 (fr) * 2010-02-12 2012-03-16 Staubli Sa Ets Procede de commande des actionneurs electriques d'un dispositif de formation de la foule
FR3041662B1 (fr) * 2015-09-29 2018-05-11 Staubli Lyon Systeme de controle d'une mecanique jacquard, mecanique jacquard et metier a tisser equipes d'un tel systeme

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1003244A3 (nl) * 1989-04-19 1992-02-04 Picanol Nv Werkwijze voor het toevoeren van inslagdraden aan de gaap van een weefmachine en inrichting die deze werkwijze toepast.
GB9605059D0 (en) * 1996-03-09 1996-05-08 Palmer Raymond L Drive system
FR2795434B1 (fr) * 1999-06-25 2001-08-10 Staubli Sa Ets Procede et dispositif de positionnement des fils de chaine d'un metier a tisser et metier a tisser equipe d'un tel dispositif
FR2808812B1 (fr) * 2000-05-15 2002-07-19 Staubli Sa Ets Procede et dispositif de detection d'anomalie dans la foule d'un metier jacquard

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Publication number Publication date
FR2865741A1 (fr) 2005-08-05
EP1559816A3 (de) 2006-04-12
CN1648303A (zh) 2005-08-03
CN1648303B (zh) 2012-01-25
RU2005102140A (ru) 2006-07-10
RU2359076C2 (ru) 2009-06-20
DE602005001208T2 (de) 2008-01-24
DE602005001208D1 (de) 2007-07-12
EP1559816A2 (de) 2005-08-03
ATE363557T1 (de) 2007-06-15
FR2865741B1 (fr) 2006-03-17

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