EP0849384B1 - Fachbildungsvorrichtung, Verfahren für deren Zusammenbau und Jacquardwebmaschine mit einer solchen Vorrichtung - Google Patents

Fachbildungsvorrichtung, Verfahren für deren Zusammenbau und Jacquardwebmaschine mit einer solchen Vorrichtung Download PDF

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Publication number
EP0849384B1
EP0849384B1 EP97420236A EP97420236A EP0849384B1 EP 0849384 B1 EP0849384 B1 EP 0849384B1 EP 97420236 A EP97420236 A EP 97420236A EP 97420236 A EP97420236 A EP 97420236A EP 0849384 B1 EP0849384 B1 EP 0849384B1
Authority
EP
European Patent Office
Prior art keywords
plates
modules
shed
forming device
framework
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
EP97420236A
Other languages
English (en)
French (fr)
Other versions
EP0849384A1 (de
Inventor
Joseph Palau
Dario Bassi
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.)
Staeubli Lyon SA
Original Assignee
Staeubli Lyon SA
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 Staeubli Lyon SA filed Critical Staeubli Lyon SA
Publication of EP0849384A1 publication Critical patent/EP0849384A1/de
Application granted granted Critical
Publication of EP0849384B1 publication Critical patent/EP0849384B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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 invention relates to a crowd forming device for a Jacquard type weaving loom, to a method of mounting such a device and to a weaving loom equipped with such a crowd forming device or mounted according to such a method.
  • the invention is more particularly centered on the vertical actuation, in phase opposition, of the two series of blades or knives which ensure the control of the hooks of an armor mechanism.
  • hooks are arranged in parallel rows separated from each other by spaces in each of which a knife moves vertically.
  • This knife is most often supported by one of two claw frames.
  • Each frame is suspended from levers animated by an oscillating movement so as to lower and raise alternately, it being observed that the vertical movements of the knives take place simultaneously, in opposite directions to each other, in order to operate the opening of the pitch for the insertion of the weft thread.
  • the output shaft of the loom on which the shedding device is to be installed can be located on the left or right side of this loom. It is customary to provide that the crowd training device can be adapted to trades with an output shaft on the left or on the right.
  • the weaver who will use the loom decides to change the type or supplier of loom while he maintains his choice with regard to the crowd training device, so that it is sometimes necessary to change the entry side of the movement into the crowd formation device.
  • this modification is long and complex. In particular, it induces significant interventions on the peripheral mechanical parts such as the chassis and the transmission elements.
  • the present invention mainly intends to remedy, which essentially consists in providing two longitudinal shafts arranged co-axially inside a rigid tube integral with two support plates for said shafts and a mechanism for cams transmitting an alternating rotational movement from an input shaft of the shedding device to the longitudinal shafts.
  • the coaxial longitudinal shafts constitute an efficient and not very complex device making it possible to transform, with the cam mechanism, the movement of the input shaft into the movement for controlling the claw frames.
  • the rigid tube, the plates and the longitudinal co-axial shafts constitute a solid assembly which can be manipulated in a unitary manner, for example by means of a hoist, in order to be placed on the structure of the crowd forming device. .
  • the plates are removably mounted on the structure of the device.
  • This aspect of the invention facilitates maintenance operations because, when it is necessary to access, by For example, with the selection modules for the hooks of the crowd formation device, the plates can be separated from the structure and the drive assembly formed by the plates, the shafts, the tube and the cam mechanism can be removed.
  • the plates are capable of being mounted on the structure in two positions corresponding respectively to the positioning of the input shaft on one side or the other of the device.
  • This aspect of the invention therefore makes it possible to produce, with the same drive assembly, a crowd training device with movement input on the right or on the left.
  • the plates are asymmetrical, that is to say the axis common to the longitudinal shafts and to the tube is offset with respect to the median axis of the plates.
  • the plates are symmetrical, that is to say the axis common to the longitudinal shafts and to the tube is intersecting with the median axis of said plate.
  • the crowd formation device comprises electromagnetic modules for selecting the hooks resting on the knives, these modules are distributed in baskets able to be put in place in the device once the modules are in place in the baskets.
  • This aspect of the invention makes it possible to prepare the modules outside the crowd training device, that is to say in particular on a workbench allowing comfortable work for an operator and of good quality and to install them. then by groups in the device of the invention.
  • the invention also relates to a method of mounting a crowd training device, in particular as described above.
  • This process is characterized in that it consists in pre-mounting on the one hand a structure equipped with selection modules and on the other hand in a rigid drive assembly comprising two longitudinal shafts arranged co-axially inside a rigid tube integral with two plates and a cam mechanism and mounting said drive assembly on said structure equipped with modules.
  • This two-stage assembly makes it possible to obtain both good flexibility in the manufacture of the device, in particular with regard to the input side of the drive movement, and an improvement in the working conditions of the operators who can perform their tasks. under conditions adapted to the assembly of each sub-assembly considered.
  • the drive assembly can, if necessary, be pre-mounted in a clean room and moved to the structure of the crowd training device when all of its protective covers are in place.
  • the method also consists in equipping the structure with modules distributed in pre-assembled baskets. This further facilitates the work of operators.
  • the mounting of the drive assembly on the structure equipped with modules is carried out in a removable manner.
  • This removable nature makes it possible to separate these assemblies, in particular in the event of modification of the customer's order or for maintenance operations.
  • the invention finally relates to a Jacquard type loom equipped with a crowd training device as previously described.
  • the knives or blades of a crowd-forming mechanism are divided into two groups 1 and 1 ′ each suspended from a frame of claws animated by vertical reciprocating movements in phase opposition.
  • the claw frames are formed by bars 2 and 3.
  • the ends of bars 2 and 3 are engaged in slides 4 rigidly fixed to the frame of the device which is not shown in FIG. 1, but which appears in FIG. 2 in the form of two beams 5 and 6 with a C section.
  • each bar belonging to the claw frame is associated with a substantially horizontal lever.
  • These levers bear the references 7 and 8 and are respectively associated with bars 2 and 3.
  • One end of each lever is coupled to the corresponding bar while the opposite end pivots on the fixed frame around an axis X 1 -X 1 'fixed.
  • the slides 4 can be omitted because the bars 2 and 3 have a length which does not require very precise guidance.
  • a shaft 10 for inputting the movement of the crowd-forming device.
  • This shaft 10 is connected by means of a coupling 11 to a second shaft 12 driven in continuous rotation by the shaft of the loom with which the shedding device is associated.
  • each cam 13 or 14 is constituted by two eccentric discs, fixed side by side on the same hub, the eccentricities being oriented one opposite the other in each cam.
  • the periphery of the discs of the two cams 13 and 14 form raceway for rollers 15, shown in the form of arrows, which are carried by radial arms 16 a , 16 b , 17 a and 17 b , oriented opposite each other and axially offset l one over the other.
  • These arms form two rockers 16 and 17.
  • the rocker 16 is fixed at the end of a shaft 20, mounted coaxially inside a shaft 21 of length slightly shorter than that of the shaft 20.
  • the rocker 17 is fixed at the end of the shaft 21.
  • the two shafts 20 and 21 are arranged co-axially inside a rigid tube 22 secured to two plates 23 and 24 capable of being assembled on the beams 5 and 6, for example by means of screws represented by their center lines 25 and 26 in FIG. 2.
  • the two co-axial shafts 20 and 21 are suitably rotatably supported in bearings added in the plates 23 and 24 and they are oriented along the longitudinal axis median of the mechanical frame in the upper part of it.
  • the cam mechanism constituted by the elements 13 to 17 ensures the transformation of the continuous rotational movement of the input shaft 10 into an oscillating movement, while the two co-axial shafts 20 and 21 are driven by an alternating movement , in synchronism and in phase opposition, one with respect to the other.
  • the outer shaft 21 is cut out from two openings 21 a offset axially from one another and oriented opposite one of the 'other.
  • Each of these lights 21a is traversed by a lever 28 fixed radially to the inner shaft 20.
  • a lever 29 is fixed radially to the outer shaft 21 along the axis of the lever 28 corresponding .
  • Each of the pairs of opposite levers 28 and 29 therefore constitutes a sort of plague which the two concentric shafts 20 and 21 animate with an oscillating movement.
  • the tube 22 makes it possible to constitute a rigid assembly which can be qualified as a "drive assembly” with the shafts 10, 20 and 21 and the plates 23 and 24, this assembly being able to be mounted in one operation, on a structure which includes hook selection modules belonging to the crowd training device.
  • the tube 22 is connected to the plates 23 and 24 by means of upper extensions 23 a and 24 a and lower 23 b and 24 b disposed respectively above and below the pairs of levers 28 and 29 at the two ends of the tube 22.
  • Each lever 28 and 29 is pierced by an arcuate slot 28a, respectively 29a for the adjustable fastening of a vertical rod 30 shown in axis lines in Figure 1.
  • the links 30 allow to alternately raise the bars 2 and 3.
  • the movement of the costers 1 and 1 ′ is obtained from the rotation of the shaft 10 thanks to the transformation of the continuous rotation movement into a reciprocating oscillation movement inside the tube 22.
  • baskets 31 are provided in which are installed selection modules 31 ′, for example electromagnetic, intended to immobilize the hooks connected to the heddles of the harness of the Jacquard mechanism at a given point of their trajectory.
  • These modules can be of any known type.
  • the use of baskets 31, which are shown empty in FIG. 2 with the exception of a module 31 ′ in order to simplify the diagram, allows the baskets to be filled with modules according to a chosen configuration, then the installation of these modules 31 ', in groups each corresponding to a basket 31, between the beams 5 and 6. This procedure makes it easier to assemble in the sense that each basket can be equipped with a chosen number of modules which can be tested at by means of a device of suitable capacity.
  • the baskets 31 are easily put in place between the beams 5 and 6 because access to the volume located between these beams is free because the device for driving the bars 2 and 3, visible in FIG. 1, doesn’t is not yet installed.
  • Another operator can proceed, in a specially dedicated workshop, and in particular in a clean room, with the assembly of the rigid drive assembly which comprises the input shaft 10, the two longitudinal shafts 20 and 21, the tube 22 , the plates 23 and 24 and the cam mechanism 13 to 17 which appears when mounted in the upper part of FIG. 2.
  • this drive assembly is provided with a cover 33 which protects the cam mechanism while a sleeve 34 surrounds the shaft 10 while being fixed on the cover 33.
  • the drive assembly is a rigid and robust device which can be manipulated, for example by means of a hoist, in order to be put in place on the structure, represented by beams 5 and 6, fitted with modules, after the baskets 31 have been put in place.
  • the assembly of the drive assembly on the beams 5 and 6 is carried out in a removable manner, so that, during a maintenance operation, it is possible to separate the drive assembly for the rest of the structure of the crowd formation device in order to intervene on the modules by removing the baskets 31.
  • YY the middle axis of the plates 23 and 24. As it appears in FIG. 2, this axis is offset with respect to the axis XX' common to the shafts 20 and 21 and to the tube 22. This corresponds to a construction more rational of the drive assembly in which the inclination of the connecting rods 30 is limited while the forces on the levers 7 and 8 are kept at a low level.
  • the non-symmetrical construction of the plates 23 and 24 also makes it possible to limit the dimensions of the arcuate openings 28 a and 29 a .
  • the plates 23 and 24 are symmetrical, that is to say that the axis XX 'is intersecting with the median axis YY' of these plates, so that the same drive assembly can be indifferently mounted with the input shaft oriented on one side or the other of the crowd-forming device.
  • This device is also capable of producing an oblique crowd, even if the mechanical stresses are greater than in the case where the plates are asymmetrical.
  • the rigid structure formed essentially by the tube 22 and the plates 23 and 24 makes it possible to support the shaft 10 in overhang, which avoids having to provide a force recovery tab. on the beams 5 and 6 for the support of the shaft 10.
  • the lower structure of the device of the invention is thus simplified.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)

Claims (10)

  1. Fachbildungsvorrichtung für eine Jacquard-Webmaschine, bei der die abwechselnde vertikale Betätigung von zwei Reihen von Messern (1, 1') von einer kontinuierlich rotierenden Eingangswelle (10) ausgeht,
    dadurch gekennzeichnet,
    daß sie zwei Längswellen (20, 21), koaxial angeordnet im Innern eines steifen Rohrs (22), das fest mit zwei Platten (23, 24) zum Tragen der genannten Wellen verbunden ist, und einen Nockenmechanismus (13-17) umfaßt, der eine Rotationswechselbewegung - der genannten Eingangswelle auf die Längswellen überträgt.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die genannten Tragplatten (23, 24) lösbar auf ein Gerüst (5, 6) der genannten Vorrichtung montiert sind.
  3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die Tragplatten 23, 24) in zwei Stellungen auf das genannte Gerüst (5, 6) montiert werden können, die der jeweiligen Positionierung der genannten Eingangswelle (10) auf der einen oder anderen Seite der genannten Vorrichtung entsprechen.
  4. Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die genannten Tragplatten (23, 24) unsymmetrisch sind, d.h. daß die gemeinsame Achse (XX') der beiden Längswellen (20, 21) versetzt ist in bezug auf die Mittelachse (YY') der genannten Tragplatten.
  5. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die genannten Tragplatten symmetrisch sind, d.h. daß die gemeinsame Achse der beiden Längswellen die Mittelachse der genannten Tragplatten schneidet.
  6. Vorrichtung nach einem der vorangehenden Ansprüche, elektromagnetische Module zur Wahl der durch die genannten Messer getragenen Haken umfassend, dadurch gekennzeichnet, daß die genannten Module (31') auf Körbe (31) verteilt sind, die in der genannten Vorrichtung angeordnet werden können, sobald die genannten Module in den genannten Körben angeordnet sind.
  7. Verfahren zur Montage einer Fachbildungsvorrichtung,
    dadurch gekennzeichnet,
    daß es darin besteht, einerseits ein mit Hakenwahlmodulen (31') bestücktes Gerüsts (5, 6) und andererseits eine steife Antriebseinheit vorzumontieren, die zwei Längswellen (20, 21), die koaxial im Innern eines steifen Rohrs (22) angeordnet sind, das fest mit zwei Tragplatten (23, 24) verbunden ist, und einen Nockenmechanismus (13-17) umfaßt, und diese Antriebseinheit auf das genannte, mit Modulen bestückte Gerüst zu montieren.
  8. Verfahren nach Anspruch 7, dadurch gekennzeichnet, daß es darin besteht, das genannte Gerüst mit mit Modulen (31') zu bestücken, die auf vormontierten Körben (31) verteilt sind.
  9. Verfahren nach Anspruch 7, dadurch gekennzeichnet, daß die genannte Antriebseinheit (13-17, 20-24) auf lösbare Weise auf das mit Modulen (31') bestückte Gerüst (5, 6) montiert wird.
  10. Jacquard-Webmaschine mit einer Fachbildungsvorrichtung nach einem der Ansprüche 1 bis 6.
EP97420236A 1996-12-19 1997-12-17 Fachbildungsvorrichtung, Verfahren für deren Zusammenbau und Jacquardwebmaschine mit einer solchen Vorrichtung Expired - Lifetime EP0849384B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9616004 1996-12-19
FR9616004A FR2757544B1 (fr) 1996-12-19 1996-12-19 Dispositif de formation de la foule, procede de montage et metier a tisser de type jacquard equipe d'un tel dispositif

Publications (2)

Publication Number Publication Date
EP0849384A1 EP0849384A1 (de) 1998-06-24
EP0849384B1 true EP0849384B1 (de) 2000-04-05

Family

ID=9499131

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97420236A Expired - Lifetime EP0849384B1 (de) 1996-12-19 1997-12-17 Fachbildungsvorrichtung, Verfahren für deren Zusammenbau und Jacquardwebmaschine mit einer solchen Vorrichtung

Country Status (7)

Country Link
US (1) US5927347A (de)
EP (1) EP0849384B1 (de)
JP (1) JP3429172B2 (de)
CN (1) CN1061109C (de)
DE (1) DE69701616T2 (de)
ES (1) ES2144302T3 (de)
FR (1) FR2757544B1 (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2802219B1 (fr) * 1999-12-14 2002-10-18 Staubli Sa Ets Dispositif de formation de la foule pour metier a tisser de type jacquard
BE1013564A3 (nl) * 2000-06-16 2002-04-02 Wiele Michel Van De Nv Inrichting voor de rechtgeleiding van de messendraagbalken in een jacquardmachine.
FR2835537B1 (fr) * 2002-02-07 2004-10-01 Staubli Lyon Dispositif de formation de la foule et metier a tisser jacquard incorporant un tel dispositif
FR2854642B1 (fr) * 2003-05-06 2005-07-08 Staubli Lyon Dispositif de formation de la foule et metier a tisser du type jacquard equipe d'un tel dispositif
BE1016559A4 (nl) * 2005-03-21 2007-01-09 Wiele Michel Van De Nv Jacquardinrichting.
SE533266C2 (sv) * 2008-12-16 2010-08-03 Texo Ab Vävmaskin med modulariserad drivning
FR2945825B1 (fr) * 2009-05-19 2011-06-24 Staubli Lyon Dispositif de formation de la foule et metier a tisser de type jacquard equipe d'un tel dispositif.
CN103290588B (zh) * 2013-06-05 2014-09-24 傅加龙 电脑提花机及其传动机构
US10264859B2 (en) 2013-12-08 2019-04-23 Ivonne Parker Liquid dispenser device that can be worn as jewelry
CN105386190A (zh) * 2015-11-27 2016-03-09 江苏莱纳多智能装备有限公司 一种凸轮开口提花机的传动机构
CN105483895A (zh) * 2016-01-21 2016-04-13 张军波 一种共轭凸轮提花开口装置
CN107366071B (zh) * 2017-08-15 2023-05-12 丁秋亚 一种提花开口装置
US20220100071A1 (en) * 2019-03-05 2022-03-31 Thomas Jefferson University Dynamic wall for augmented reality
CN114592261B (zh) * 2022-03-15 2023-10-27 嵊州市和丰电子科技有限公司 矮机身低重量高稳定性提花机

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3721932A1 (de) * 1987-07-02 1989-01-19 Grosse Webereimaschinen Gmbh Doppelhub-offenfach-jacquardmaschine
GB8723850D0 (en) * 1987-10-10 1987-11-11 Eltex Of Sweden Ltd Warp thread control
BE1004308A3 (nl) * 1989-07-17 1992-10-27 Wiele Michel Van De Nv Aandrijfsysteem voor de messenroosters van een dubbel-hef-opengaap jacquardmachine, en dergelijke jacquardmachines van een dergelijk aandrijfsysteem voorzien.
FR2669648B1 (fr) * 1990-11-27 1993-01-29 Staubli Verdol Ensemble de commande du mouvement des cadres d'un dispositif de formation de la foule telle qu'une mecanique d'armure.
FR2669650B1 (fr) * 1990-11-27 1994-04-29 Staubli Verdol Mecanisme de commande des cadres d'un dispositif de formation de la foule.
DE9307391U1 (de) * 1993-04-26 1993-09-30 Textilma Ag Fachbildevorrichtung für eine Webmaschine

Also Published As

Publication number Publication date
FR2757544B1 (fr) 1999-03-05
CN1185496A (zh) 1998-06-24
US5927347A (en) 1999-07-27
EP0849384A1 (de) 1998-06-24
DE69701616T2 (de) 2000-07-27
JP3429172B2 (ja) 2003-07-22
ES2144302T3 (es) 2000-06-01
JPH10237737A (ja) 1998-09-08
DE69701616D1 (de) 2000-05-11
FR2757544A1 (fr) 1998-06-26
CN1061109C (zh) 2001-01-24

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