EP0079843B1 - Elektromagnetisches Verfahren zum Steuern von Schaftmaschinen - Google Patents

Elektromagnetisches Verfahren zum Steuern von Schaftmaschinen Download PDF

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Publication number
EP0079843B1
EP0079843B1 EP82420115A EP82420115A EP0079843B1 EP 0079843 B1 EP0079843 B1 EP 0079843B1 EP 82420115 A EP82420115 A EP 82420115A EP 82420115 A EP82420115 A EP 82420115A EP 0079843 B1 EP0079843 B1 EP 0079843B1
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EP
European Patent Office
Prior art keywords
selector
dobby
hooks
stop
poles
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
Application number
EP82420115A
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English (en)
French (fr)
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EP0079843A1 (de
Inventor
Joseph Palau
Jean-Paul Froment
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Staubli Faverges SCA
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Staubli Faverges SCA
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Application filed by Staubli Faverges SCA filed Critical Staubli Faverges SCA
Publication of EP0079843A1 publication Critical patent/EP0079843A1/de
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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C1/00—Dobbies

Definitions

  • the present invention relates to weaving dobbies and it relates more particularly to devices of the electromagnetic type intended for their control.
  • a dobby comprises a single control device which, according to a variable program corresponding to the particular weave desired for the fabric being produced on the weaving machine, actuates vertically a series of frames of smooth ensuring the operation of the warp threads.
  • the vertical displacement of the latter implies a significant effort, so that between the control device and the cables or operating rods linked to each of the different frames of the dobby, an independent amplifier system must be interposed, the assembly formed by each frame and by its amplifier system constituting what is called a "blade" of the dobby.
  • the control device includes in the first place a reading device for reading the weaving program, this program possibly depending on the case being in the form of a continuous strip of perforated paper, of an articulated series of perforated cartons, of 'a chain or an ankle cylinder, etc ...
  • the information recorded by the reading device must be transformed into mechanical movements by a relatively complex actuation mechanism, incorporating a series of mobile rods maneuvered by motor knives with reciprocating movement or by rotating cams.
  • this actuation mechanism comprises at least one output member which acts selectively on one or the other of a pair of tilting hooks ensuring actuation of the corresponding amplifier system, this these may, depending on the case, be of the rotary type or of the oscillating balance type.
  • the present invention intends mainly to remedy, by making it possible to produce an electromagnetic control device for dobby which is of simple construction in a small footprint and of perfectly satisfactory operating reliability, whatever the speed of work of the weaving machine with which the dobby is associated.
  • the device according to the invention of the type comprising a reading device for reading the weaving program connected to electromagnets for operating a pair of hooks ensuring the control of an amplifier system provided at each of the blades, is characterized in that the assembly of the electromagnets is fixed on a single chassis which is driven by an oscillating movement linked to that of the dobby and which carries at each blade a selector formed by a rocking lever articulated on an axis of said chassis and associated with elastic means tending to separate it from the poles of attraction of the corresponding electromagnet, which selector, thus driven by an alternating movement which approaches it and moves it cyclically away from the actuating hooks , cooperates with a stop which sticks it against the aforementioned poles when it moves away from the above-mentioned hooks when it is spaced from said poles.
  • the selector will remain stuck or on the contrary be moved away by its elastic return means, if although when the chassis approaches again the pairs of hooks, this selector will come to bear against one or against the other of the hooks of the pair concerned. It should be observed that in such a process the electromagnets never operate the positive displacement of the selectors; their role is limited to retaining, against the elastic return means, the selector which has applied against their poles, or on the contrary to releasing it, so that the effort which they provide is very reduced .
  • the uniqueness of the block of electromagnets considerably simplifies the control by the reading device at the same time as it significantly reduces the overall size.
  • the tilting selectors interposed between the electromagnets and the pairs of hooks are capable of ensuring a force amplification role which simplifies the construction and which makes it possible to have recourse to lower supply currents.
  • the rotary dobby illustrated in fig. 1 to 3 is of the type which was the subject of French patent application No. 81.20502 filed October 29, 1981 in the name of the Applicant.
  • the main shaft 1 connected to the input shaft of the dobby through a modulating mechanism so as to be driven by an intermittent rotational movement with stops every 180 °, supports the various amplifying systems of the dobby.
  • each system comprises an eccentric 2 mounted idly on the shaft 1 and provided with a lateral plate 3 on which a ratchet is articulated laterally 4.
  • the eccentric 2 is engaged in the opening of a connecting rod 5 which is harnessed, by means of an arm 6 (fig. 1) pivoting on a fixed axis 7, with the usual pull lever (shown diagrammatically in 8) connected to the heald frame which corresponds to the envisaged blade of the dobby.
  • Each of the amplifying systems further comprises a circular or driving disc 9 whose central opening is provided crenellated to cooperate with the longitudinal grooves of the main shaft 1. At two diametrically opposite points on its periphery, this disc 9 is cut out of two notches 9a (fig. 2) which are intended to cooperate with a finger 4a formed at one end of the coupling pawl 4. The opposite end of the latter is arranged at a notch 3a formed in the periphery of the plate 3 secured to the eccentric 2. It will be observed that a spring 10 (fig. 1), interposed between a radial tab of the plate 3 and the pawl 4, tends to elastically hold the finger 4a against the periphery of the disc 9 .
  • each blade of the dobby is operated using two tilting hooks 11 and 12 having two arms oriented at right angles on either side of a fixed axis pivot 13, respectively 14 carried by the walls of the housing A of the dobby.
  • One of the arms of each hook is profiled to present a spout 11a, 12a suitable for engaging, as will be seen below, in the notch 3a of the plate 3 to push back the pawl 4 during each stop of the shaft 1 and thus immobilize the eccentric 2.
  • the other arm, intended to receive the action of the control device according to the invention generally referenced 15, is biased to tilt by a spring 16 which thus tends to engage the spout 11 a , respectively 12a, in the notch 3a.
  • the control device 15 comprises a reading device shown diagrammatically at 17, arranged to take information on an armor program, assumed to be formed by a chain of perforated cartons 17a. This information is transformed by the apparatus 17 into electrical pulses which are sent by a cable 18 to a single control unit with electromagnets 19, advantageously of the type described in the patent application No. 80 10548 filed on May 6, 1980 in the name of the Claimant.
  • This block 19 contains a series of electromagnets in number equal to that of the blades of the envisaged dobby, each electromagnet 19a receiving from the device 17 the pulses corresponding to its blade.
  • the block 19 is carried by a frame formed by two arms 20 joined to one another by a profile 21 made integral with said block.
  • the two arms 20 are fixed on a shaft 22 which is driven from the input shaft of the dobby through a modulator, so as to be driven by an oscillating movement.
  • control device 15 also comprises a series of selectors 23 in number equal to that of the blades of the dobby, all of these selectors being brought to free tilting by a pin 24 whose ends are fixed to the arms 20 of the aforementioned chassis.
  • Each selector 23 is provided with a metal plate 23 'pivotally attached and intended to cooperate with the poles of the electromagnet 19a which corresponds to it in the block 19, it being observed that a spring 25 (fig. 4) tends to move said selector away from the aforementioned poles.
  • each of the selectors 23 is profiled to determine a kind of nose 23a suitable for acting, as will be seen below, on the corresponding end or tail of the tilting hooks 11 or 12, while it comprises laterally a heel 23b which cooperates with a fixed stop 26a provided on one of two crosspieces 26 fixed in the casing A below the lowest point of the oscillating travel of the block 19.
  • the eccentric 2 is then made angularly integral with the shaft 1 through the plate 3, the pawl 4 and the disc 9, so that as soon as the shaft 1 begins a new rotation of 180 °, the connecting rod 5 considered is actuated and therefore operates the pull lever 8 and the heald frame associated therewith (line V of the diagram in fig. 8).
  • the pawl 4 is placed opposite the beak 12a of the hook 12, which beak is elastically engaged in the notch 3a.
  • the electromagnet 19a is still energized, the selector 23 remains stuck against the poles of said electromagnet, so that when the chassis is lowered 20-21 this selector will again activate the hook 11; this actuation will however have no effect since at this time the pawl 4 can only be actuated by the hook 12.
  • the spout 12a remains engaged in the notch 3a and therefore retains the plate immobile 3 and the eccentric 2.
  • the pull lever 8 remains in the anterior position corresponding to the lifting of the heald frame, as shown in the diagram.
  • the selector 23 takes off therefrom during the upward stroke of the chassis 20-21 (fig. 5) , so that when this chassis performs its downward stroke according to fig. 6, the nose 23a actuates the tail of the hook 12.
  • the spout 12a is extracted from the notch 3a and the pawl 4 elastically introduces its spout 4a into the corresponding notch 9a of the disc 9.
  • the rod 5 returns to its initial position and the corresponding heald frame moves.
  • FIG. schematically illustrates the application of the control device according to the invention to a dobby of the type with scales.
  • each of the pulling levers 8 associated with the heald frames is coupled to a lever or half-balance 27 which pivots at 28 and which carries a balance 29 at articulation.
  • Each balance 29 is formed by a sort of double lever provided at each of its ends with a coupling hook 30, respectively 31.
  • a cross member 32, respectively 33 these two cross members being mounted on a flange 34 animated by an oscillating movement.
  • each balance 29 In front of each balance 29 are provided two fixed axes 35 on each of which pivots a retaining hook 36, 37 intended to cooperate with the coupling hook 30, respectively 31 of the balance.
  • a spring 38 tends to hold the hooks 36 and 37 in an external position for which they are able to come to engage with the hooks 30 and 31, stops 39 limiting the angular displacement of said hooks 36 and 37.
  • the device according to the invention comprises, as in the previous embodiment, a frame 40 fixed on a shaft 41 driven by an oscillating movement.
  • This chassis supports a block 42 identical to that referenced 19, as well as an axis 43 on which are mounted idle a number of selectors 44 equal to that of the electromagnets 42a of the aforementioned block.
  • a spring 45 tends to keep each selector 44 in contact with a fixed stop 46.
  • each selector 44 is provided with two opposite extensions 44a, respectively 44b, in order to actuate the retaining hooks 36 and 37, provided for this purpose with a spout 36a, respectively 37a; it should be observed that these nozzles 36a and 37a are arranged on the hooks 36 and 37 behind the pivots or fixed axes 35, so that when said hooks are pushed back by the spout which is associated with them, their useful part, that is to say their end which is intended to cooperate with the corresponding towing hook 30, 31, is moved outwards, thus moving away from the latter hook.
  • FIG. 10 shows that in the same way the upper hooks 36 and 30 remain stationary when the selector 44, still retained against the electromagnet 42a assumed to be powered, moves upward with its extension 44a in the retracted position relative to the spout 36a .

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Mechanical Control Devices (AREA)
  • Control Of Position Or Direction (AREA)

Claims (4)

1. Elektromagnetische Vorrichtung zum Steuern von Schaftwebmaschinen mit Hebeschäften von der Art, welche eine Einlesevorrichtung zum Einlesen des Webprogrammes (17) aufweisen, die mit Elektromagneten (19a, 42a) verbunden ist, um ein Paar von Haken (11-12, 36-37) zu betätigen, die die Steuerung eines Verstärkersystems sicherstellt, welches auf gleicher Höhe von jedem Hebeschaft vorgesehen ist, dadurch gekennzeichnet, daß die Gesamtheit (19, 42) der Elektromagneten (19a, 42a) auf einem einzigen Träger (20-21,40) befestigt ist, welcher zu einer oszillierenden Bewegung angetrieben ist, die mit derjenigen der Schaftmaschine verbunden ist, und auf gleicher Höhe von jedem Hebeschaft eine Auswahlvorrichtung (23, 44) trägt, welche von einem hin- und herschwingenden, um eine Achse (24, 43) des Trägers verschwenkbaren Hebel gebildet und mit elastischen Mitteln (25, 45) verbunden ist, die bestrebt sind, die Anziehungspole des entsprechenden Elektromagneten (19a, 42a) voneinander zu entfernen, daß die derart zu einer abwechselnden Verschiebung, die zyklisch die Betätigungshaken (11-12, 36-37) des betreffenden Paares annähert und voneinander entfernt, angetriebene Auswahlvorrichtung mit einem Anschlag (26a, 46) zusammenarbeitet, welcher die Auswahlvorrichtung in Anziehung gegen die vorgenannten Pole zurückbringt, wenn sie sich von den erwähnten Haken entfernt, während sie sich von diesen Polen beabstandet befindet.
2. Vorrichtung nach Anspruch 1 zur Steuerung einer Rotationsschaftmaschine, dadurch gekennzeichnet, daß jede Auswahlvorrichtung (23) einerseits eine axiale Nase (23a), die wahlweise gegen ein Endstück des einen oder des anderen der beiden Haken (11 oder 12) gebracht wird, und andererseits einen seitlichen Ansatz (23b) umfaßt, der mit dem Anschlag (26a, 46) zusammenwirkt.
3. Vorrichtung nach Anspruch 1 zur Steuerung einer Schaftmaschine mit oszillierenden Waagen, dadurch gekennzeichnet, daß jede Auswahlvorrichtung (44), die zwischen den zwei entsprechenden Zurückhaltehaken (36 und 37) angeordnet ist, einerseits zwei einander gegenüberliegende Verlängerungen (44a, 44b), die eine Nase (36a, 37a) des entsprechenden Hakens zurückstoßen oder diese vermeiden können, und andererseits eine Profilrand (44c) aufweist, um mit dem Anschlag (46) zusammenzuwirken.
4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Anschlag (46) fest an dem Gehäuse der Schaftmaschine befestigt ist.
EP82420115A 1981-11-05 1982-08-06 Elektromagnetisches Verfahren zum Steuern von Schaftmaschinen Expired EP0079843B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8121106 1981-11-05
FR8121106A FR2515703B1 (de) 1981-11-05 1981-11-05

Publications (2)

Publication Number Publication Date
EP0079843A1 EP0079843A1 (de) 1983-05-25
EP0079843B1 true EP0079843B1 (de) 1985-05-29

Family

ID=9263890

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82420115A Expired EP0079843B1 (de) 1981-11-05 1982-08-06 Elektromagnetisches Verfahren zum Steuern von Schaftmaschinen

Country Status (6)

Country Link
US (1) US4461325A (de)
EP (1) EP0079843B1 (de)
JP (1) JPS5891844A (de)
DE (1) DE3263898D1 (de)
ES (1) ES8306195A1 (de)
FR (1) FR2515703B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101275321B (zh) * 2006-12-21 2011-08-03 施托布利法韦日公司 用于对综框的运动进行电磁选针的电磁块和装置
CN106987959A (zh) * 2017-05-27 2017-07-28 江苏金龙科技股份有限公司 旋转多臂机的吸铁摆臂结构

Families Citing this family (20)

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Publication number Priority date Publication date Assignee Title
CS233367B1 (en) * 1982-07-20 1985-03-14 Josef Blazek Apparatus for control of pawls,coupling disks of excentres in dobby machines
FR2540524B1 (fr) * 1983-02-07 1985-07-26 Staubli Sa Ets Ratiere rotative synchronisee pour metiers a tisser
IT1188533B (it) * 1986-01-31 1988-01-14 Fimtessile Meccanismo di controllo delle oscillazioni di bielle di comando dei quadri dei licci in una ratiera rotativa
US5018556A (en) * 1988-04-01 1991-05-28 Murata Kikai Kabushiki Kaisha Dobby loom with a magnetically operated hook selector
CH679870A5 (de) * 1988-10-07 1992-04-30 Walter Kleiner
JPH0268905U (de) * 1988-11-14 1990-05-24
FR2662710B1 (fr) * 1990-05-31 1992-08-28 Staubli Sa Ets Unite electro-magnetique pour la commande des ratieres et autres mecaniques de tissage.
FR2672308B1 (fr) * 1991-02-01 1993-05-07 Staubli Sa Ets Mecanique d'armure pour la formation de la foule sur les machines a tisser.
IT1251107B (it) * 1991-07-25 1995-05-04 Costantino Vinciguerra Perfezionamenti in una ratiera rotativa ad altissima velocita'
IT1254219B (it) * 1992-02-25 1995-09-14 Eccentrico perfezionato per ratiera rotativa
JP3425983B2 (ja) * 1992-12-25 2003-07-14 株式会社山田ドビー ドビー
IT1265200B1 (it) * 1993-11-19 1996-10-31 Nuovo Pignone Spa Sistema perfezionato di eletromagneti-aste colpitrici per il dispositivo di una rattiera rotativa
US5735315A (en) * 1996-09-11 1998-04-07 A.E. Petsche Company, Inc. Wire loom dobby
FR2757882B1 (fr) * 1996-12-31 1999-02-19 Staubli Sa Ets Ratiere rotative et metier a tisser equipe d'une telle ratiere
FR2757884B1 (fr) * 1996-12-31 1999-02-19 Staubli Sa Ets Dispositif d'actionnement a selection electromagnetique pour la commande des ratieres et autres mecaniques de tissage
SE519974C2 (sv) * 2002-06-03 2003-05-06 Cemvac System Ab Anordning för utmatning av en monomer till en med en polymer förfylld blandningsanordning för tillredning av bencement
FR2842538B1 (fr) 2002-07-16 2004-10-29 Staubli Sa Ets Ratiere rotative pour metier a tisser, et metier a tisser equipe d'une telle ratiere
DE102005059911B3 (de) * 2005-12-15 2007-02-08 Groz-Beckert Kg Schaftantrieb für eine Webmaschine
EP2014805B1 (de) * 2007-07-12 2011-12-14 Groz-Beckert KG Steuereinrichtung für eine Schaltkupplung einer Schaftmaschine
KR20160121080A (ko) * 2015-04-10 2016-10-19 현대자동차주식회사 자력을 이용한 테일게이트 가이드 범퍼구조

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FR1503816A (fr) * 1966-10-07 1967-12-01 Staubli Geb & Co Perfectionnement aux ratières à double lève
CH485887A (fr) * 1967-04-27 1970-02-15 Serra Xaus Sergio Ratière de lisses à double levée
CH543127A (de) * 1973-01-10 1973-10-15 Patax Trust Reg Vorrichtung zum wahlweisen Festhalten eines hin- und hergehend angetriebenen Steuerorganes einer Textilmaschine in einer seiner Endstellungen
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101275321B (zh) * 2006-12-21 2011-08-03 施托布利法韦日公司 用于对综框的运动进行电磁选针的电磁块和装置
CN106987959A (zh) * 2017-05-27 2017-07-28 江苏金龙科技股份有限公司 旋转多臂机的吸铁摆臂结构

Also Published As

Publication number Publication date
ES515231A0 (es) 1983-06-01
EP0079843A1 (de) 1983-05-25
US4461325A (en) 1984-07-24
DE3263898D1 (en) 1985-07-04
FR2515703B1 (de) 1983-12-09
ES8306195A1 (es) 1983-06-01
JPH0223611B2 (de) 1990-05-24
JPS5891844A (ja) 1983-05-31
FR2515703A1 (de) 1983-05-06

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