EP0704563B1 - Riemenjacquardmaschine - Google Patents

Riemenjacquardmaschine Download PDF

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Publication number
EP0704563B1
EP0704563B1 EP95420270A EP95420270A EP0704563B1 EP 0704563 B1 EP0704563 B1 EP 0704563B1 EP 95420270 A EP95420270 A EP 95420270A EP 95420270 A EP95420270 A EP 95420270A EP 0704563 B1 EP0704563 B1 EP 0704563B1
Authority
EP
European Patent Office
Prior art keywords
coder
shaft
belts
pairs
comparator
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
EP95420270A
Other languages
English (en)
French (fr)
Other versions
EP0704563A1 (de
Inventor
Joseph Palau
Jean-Paul Froment
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.)
Staubli Faverges SCA
Original Assignee
Staubli Faverges SCA
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Filing date
Publication date
Application filed by Staubli Faverges SCA filed Critical Staubli Faverges SCA
Publication of EP0704563A1 publication Critical patent/EP0704563A1/de
Application granted granted Critical
Publication of EP0704563B1 publication Critical patent/EP0704563B1/de
Anticipated expiration legal-status Critical
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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C3/00—Jacquards
    • D03C3/24—Features common to jacquards of different types
    • D03C3/32—Jacquard driving mechanisms
    • D03C3/36—Griffe operating mechanisms

Definitions

  • the present invention relates to Jacquard machines for training of the crowd on the weaving machines and it concerns more particularly those in which the reciprocating hooks which operate the arches of the usual harness are controlled by knives carried by the parallel strands of a series of funicular organs or belts arranged in pairs.
  • French Patent N ° 2 677 380 (STAUBLI) illustrates the layout well general mechanics of this kind.
  • the movement is taken on the main shaft of the weaving machine using a first bevel gear connected by a vertical shaft to a second bevel gear provided at the height of the mechanics to train.
  • the horizontal tree of output of this second reference constitutes the input shaft of the mechanics, on which are also generally mounted a modulator device suitable for conferring on said tree the desired law of motion for mechanics, a device for finding the pitch (untwisting) and a brake intended to automatically immobilize the mechanics as soon as the drive stops.
  • the mechanical input shaft must obviously be connected to the drums which provide the alternative drive for each of the knife belt, and on this point we can refer to what has been described and represented in French Patent N ° 2 703 697 (STAUBLI).
  • the input shaft carries two eccentrics for the control of two vertical connecting rods which actuate themselves two horizontal connecting rods linked to the pairs of drums, these being established at diameters different and decreasing from one end to the other of the mechanical to give knives and hooks strokes specific to obtaining an oblique crowd.
  • the present invention intends to remedy, which consists essentially in training each of the trees which carry the drums associated with the pulleys of the same pair of belts, using an independent electric motor which is powered through an electronic variator for the cyclic reversal of the direction of rotation and to which is directly integrated an angular location coder.
  • Each of the mechanical encoders is connected to an electronic comparator which receives the signals from an angle encoder linked to the shaft of the weaving machine which sends the above-mentioned variators the instructions ensuring the correct angular setting of the mechanics by compared to the aforementioned machine.
  • Fig. 1 is a plan view from above of a Jacquard machine established in accordance with the invention.
  • Fig. 2 is a partial cross section on a large scale according to the plan indicated in II-II in fig. 1.
  • Fig. 3 is a diagram illustrating the electronic supply of the engines.
  • the frame of the Jacquard mechanism as shown in fig. 1 and 2 is formed by two vertical flanges which have been referenced 1 in FIG. 2. It is between these two flanges 1 that the different vertical rows of modules 2 are mounted, containing the members (lifting beam, electromagnet, hauling, etc.) associated with the reciprocating hooks (shown diagrammatically at 2 a in fig. 2) controlled by horizontal knives 3 to actuate the harness arches of the mechanics considered. Between the adjacent rows of modules 2 are mounted horizontal shafts 4 oriented perpendicular to the abovementioned flanges 1.
  • each flanges 1 As shown in fig. 2, at the level of each tree 4, the apex of each flanges 1 is provided with a console 5 forming a support for two bearings 6 for mounting the ends of a horizontal drum 7 for driving a vertical belt 8; the pair of belts 8 associated with the same shaft 4 supports by one of the strands two knives 3 arranged at suitable heights to act on the two hooks of all the modules 2 in the same row.
  • tubular hub of one of the drums 7 (the one on the left in fig. 2) is directly engaged the corresponding end of the shaft 4 envisaged, the angular connection between the shaft and the drum being provided by a clamping flange 9.
  • the opposite end of the shaft 2 is engaged and pinched in the corresponding end of the other drum 7, the opposite end of the latter receiving the shaft 10 of an electric motor 11 fixed laterally against the console 5; solidarity angular between the shaft 10 and the corresponding drum 7 is also here operated by means of a clamp 9.
  • the motors 11 are of the synchronous self-piloted ("brushless") type and each of them are incorporated an automatic brake 18 and an angle encoder 14.
  • Fig. 3 shows the electrical and electronic diagram supply of these motors.
  • each motor 11 On the electrical supply conductors of each motor 11 is provided with an electronic variator 12 which ensures the cyclic inversion of the direction of rotation of the shaft 10.
  • This variator 12 is placed under the control of an autonomous electronic comparator 13 which receives the signals from the angular encoder 14 integrated into the motor 11 envisaged, in order to compare them to those coming from an encoder 15 associated with the drive shaft of the MT weaving machine in order to continuously detect the angular position of said shaft.
  • the signals are processed on the one hand by an electronic cam common 16 for transforming continuous rotation signals into alternating rotation signals on the other hand by an amplifier independent 17 able to assign to the motor 11 which corresponds to it the coefficient amplification of the length of the alternative displacement stroke of the two belts 8 as a function of the position of the shaft 4 the along the mechanics (obtaining an oblique crowd).
  • each shaft 4 overcomes the disadvantages reported above. It will also be noted that the modification of the obliquity of the crowd is operated by means of a simple intervention at level of amplifiers 17, while in Jacquard mechanics classic central drive derived from the engine of the machine weaving, this same modification constitutes a very complex operation, involving the change of a series of mechanical components and delicate settings.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Supports For Plants (AREA)

Claims (4)

  1. Jacquardmaschine von der Art, bei der die Umkehrbewegungshaken (2a), die die Harnischschnüre betätigen, durch Messer (3) gesteuert werden, getragen durch die parallelen Trümer einer Serie von Riemenpaaren (8), die selbst eine Umkehrbewegung ausführen,
    dadurch gekennzeichnet,
    daß jedes der Riemenpaare (8) durch einen unabhängigen Elektromotor (11) angetrieben wird, der durch einen elektronischen Variator (12) für die zyklische Umkehrung der Drehrichtung des genannten Motors versorgt wird, wobei in letzteren direkt ein Positionsmessungs-Winkelcodierer (14) integriert ist.
  2. Maschine nach Anspruch 1, dadurch gekennzeichnet, daß die von jedem Codierer (14) ausgegebenen Signale in einen autonomen Komparator (13) eingespeist werden, um mit denen verglichen zu werden, die von einem gemeinsamen Codierer (15) stammen, der mit der Welle der Webmaschine (MT) verbunden ist.
  3. Maschine nach Anspruch 2, dadurch gekennzeichnet, daß die Signale des gemeinsamen Codierers (15) nach ihrem Austritt aus letzterem durch eine elektronische Nockeneinrichtung (16) und dann einen unabhängigen Verstärker (17) verarbeitet werden, ehe sie von jedem Komparator (13) analysiert werden.
  4. Maschine nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß in jeden Motor (11) eine automatische Bremse (18) integriert ist.
EP95420270A 1994-09-27 1995-09-26 Riemenjacquardmaschine Expired - Lifetime EP0704563B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9411772 1994-09-27
FR9411772A FR2724948B1 (fr) 1994-09-27 1994-09-27 Mecanisme jacquard du type a courroies

Publications (2)

Publication Number Publication Date
EP0704563A1 EP0704563A1 (de) 1996-04-03
EP0704563B1 true EP0704563B1 (de) 1999-06-02

Family

ID=9467496

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95420270A Expired - Lifetime EP0704563B1 (de) 1994-09-27 1995-09-26 Riemenjacquardmaschine

Country Status (6)

Country Link
US (1) US5613526A (de)
EP (1) EP0704563B1 (de)
JP (1) JP3599444B2 (de)
DE (1) DE69509995T2 (de)
ES (1) ES2131784T3 (de)
FR (1) FR2724948B1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19651799A1 (de) * 1996-12-13 1998-06-18 Schoenherr Webstuhlbau Gmbh Antriebsvorrichtung für die Fachbildeelemente von Webmaschinen
EP0893525A1 (de) * 1997-07-24 1999-01-27 Sulzer Rüti Ag Antriebsanordnung für eine Webmaschine und Webmaschine mit Antriebsanordnung
FR2772796B1 (fr) * 1997-12-24 2000-01-28 Staubli Sa Ets Procede de montage d'un element funiculaire, dispositif de formation de la foule et metier a tisser
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
IT1313636B1 (it) * 1999-09-28 2002-09-09 Tsm S R L Telaio automatco ad aghi per la produzione di nastri.
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
ITMI20040086A1 (it) * 2004-01-22 2004-04-22 Fimtextile Spa Sistema elettronico di controllo del disegno di tessuti in telai di tessitura a ratiera
BE1016669A3 (nl) * 2005-07-05 2007-04-03 Wiele Michel Van De Nv Inrichting voor het aandrijven van een weefraam in een weefmachine, en een weefmachine voorzien van een of meerdere dergelijke inrichtingen.
DE202015105812U1 (de) * 2015-11-02 2017-01-30 GITEC Grosse Internationale Technologie GmbH Fachbildevorrichtung

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2491961A1 (fr) * 1980-10-15 1982-04-16 Verdol Sa Mecanique d'armure a commande par poulies
DE8710997U1 (de) * 1987-08-12 1987-11-26 Emil Jäger GmbH & Co KG, 4400 Münster Webmaschine mit einer mechanischen Schaftmaschine
JPH03249233A (ja) * 1990-02-23 1991-11-07 Murata Mach Ltd ジャカード駆動装置
FR2660672B1 (fr) * 1990-04-06 1992-08-28 Staubli Sa Ets Systeme pour l'entrainement d'une machine pour la formation de la foule sur une machine a tisser.
BE1004414A3 (nl) * 1990-06-11 1992-11-17 Geluwe Jacques Van Weefmachine voor kelim- en gobelinweefsels en dergelijke weefsels met een dergelijke weefmachine vervaardigd.
JP3242123B2 (ja) * 1991-05-13 2001-12-25 津田駒工業株式会社 織機の開口制御装置
FR2677380B3 (fr) * 1991-06-10 1993-05-07 Staubli Ets Mecanisme de commande des crochets d'un dispositif de formation de la foule d'un metier a tisser.
FR2703697B1 (fr) * 1993-04-07 1995-06-23 Staubli Sa Ets Mécanique jacquard à courses différenciées.

Also Published As

Publication number Publication date
JP3599444B2 (ja) 2004-12-08
ES2131784T3 (es) 1999-08-01
FR2724948B1 (fr) 1996-12-27
DE69509995D1 (de) 1999-07-08
EP0704563A1 (de) 1996-04-03
JPH08170241A (ja) 1996-07-02
DE69509995T2 (de) 1999-10-07
US5613526A (en) 1997-03-25
FR2724948A1 (fr) 1996-03-29

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