EP0699786B1 - Dispositif de formation de la foule - Google Patents

Dispositif de formation de la foule Download PDF

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Publication number
EP0699786B1
EP0699786B1 EP95113778A EP95113778A EP0699786B1 EP 0699786 B1 EP0699786 B1 EP 0699786B1 EP 95113778 A EP95113778 A EP 95113778A EP 95113778 A EP95113778 A EP 95113778A EP 0699786 B1 EP0699786 B1 EP 0699786B1
Authority
EP
European Patent Office
Prior art keywords
knives
pair
profile
shed
knife
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
EP95113778A
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German (de)
English (en)
Other versions
EP0699786A2 (fr
EP0699786A3 (fr
Inventor
Martin Burkert
Siegmund Tremer
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 GmbH
Original Assignee
Staeubli 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
Application filed by Staeubli GmbH filed Critical Staeubli GmbH
Publication of EP0699786A2 publication Critical patent/EP0699786A2/fr
Publication of EP0699786A3 publication Critical patent/EP0699786A3/fr
Application granted granted Critical
Publication of EP0699786B1 publication Critical patent/EP0699786B1/fr
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
    • D03C1/00—Dobbies
    • D03C1/10—Centre-shed dobbies, i.e. shed formed by lifting some threads and lowering the others from central shed-closed position

Definitions

  • the invention relates to a shed device for actuation of stems in a dobby with a pair of mutually opposite and mutually movable knives and with a variety of shafts standing swivel levers, the first of which faces the knives End is provided with a first connecting device with which can be optionally connected to one of the knives are, and with first profile devices that are rotatable about axes are essentially in the direction of movement of the knives, the profile devices each at least one um its axis of rotation revolving in a closed line and in axially wandering profile, and each Knife with at least one profile is engaged.
  • Such a shedding device is from the European one Patent application EP-A-0 566 506 known.
  • This shedding device works as a closed compartment dobby at after a specialist training cycle all stems including those who take the same position in the next cycle should return to the middle position.
  • In the middle position can be provided at one end of the pivot lever Double hooks in one of the two in this position close adjacent knives can be latched.
  • the swivel levers are hinged at their other end to a common axis.
  • the shafts which are articulated on the pivot levers to form a Upper or lower compartment deflected when the knives move will.
  • this task is accomplished in a first solution solved a shedding device of the type mentioned, which is characterized in that the pivot lever on her second end with a second connecting device with which you can choose with a knife from a second Pairs of opposite and movable against each other Knives are connectable, and that second profile devices are provided, the knives of the second pair each with at least one profile of the second profile devices in Stand by.
  • a shedding device of the type mentioned solved which is characterized in that the pivot lever its second end with a second connection device are provided with which you can choose with a knife second pair of opposite and against each other Movable knives are connectable, the knives of the second Pairs each with at least one profile of the first profile devices are engaged.
  • the subject training devices according to the invention enable an enterprise both as open subject, closed subject or Partially closed compartment dobby.
  • the knives are operated synchronously ensured in a simple manner.
  • two corresponding engagement parts can be obtained on corresponding knives of the first and second Knife pairs so far offset from each other with one on the profile devices trained profile are engaged that a 180 ° phase-shifted movement of these knives in the respective Knife pairs are done.
  • FIG. 1 is an embodiment of an inventive Shed forming device shown in which two pairs of knives 11A, 11B and 11C, 11D each movable relative to each other via driven profile devices in the form of cam cylinders 16 are movable.
  • the main axes of the cam cylinders 16 are arranged perpendicular to the length of the knife.
  • the knife-extending engagement pins 23 are provided which are preferably attached cam rollers 12, which in profiles in the form of grooves 24 in the lateral surface of the cam cylinder intervention.
  • the grooves in the peripheral surface of the cam cylinder each run along in the direction of the axis of rotation the curve cylinder wandering, closed lines, which are designed according to the desired knife movement.
  • a large slope of the lines leads to rapid movement the knife while a slight slope of the lines a slow movement of the knives.
  • these can Lines should therefore be designed so that they have no slope have to achieve an extended knife standstill to obtain a large standstill angle.
  • the grooves in everyone each assigned to one of the knife ends of a knife Curve cylinders have the same shape.
  • the on each a groove provided for the two cylinders Knife ends of an associated pair of knives are preferred complementary to each other.
  • cam cylinders To change the direction of rotation of the cam rollers using the groove cam principle to avoid, it would also be possible on the cam cylinders to form a suitable above profile that in a correspondingly adapted device at the ends of the Knives, for example in the form of two mutually employed Cam rollers engages. It would also be possible to use the cam cylinders with grooves that are wider than the diameter of the cam rollers used, and at each knife end to attach two cam rollers offset to each other, each only run on one side of the groove.
  • the knives are in each case near their ends extending essentially in the longitudinal direction of the cam cylinders Guides 20 slidably supported.
  • the cam cylinders 16 are each mounted on rotatably mounted shafts 17.
  • a belt transmission can be provided, for example, on both shafts 17 a sprocket or pulley 19 of the same size is provided which is via a chain or a toothed belt 18th communicate with each other.
  • the drive of the second cam cylinder 16 can also be a gear or a Push rod mechanism with eccentric at the end of the cam cylinder attached spigot.
  • each pair of knives exactly one pair of cam cylinders provided that the Front ends of the knives are arranged opposite one another.
  • double hooks would also be other means for an optional connection of the pivot lever ends with one of the knives of an assigned pair of knives conceivable, such as provided on the knives, optionally controllable and engageable with the pivot lever end Hooks, pneumatic connectors, electrically operated Electromagnetic devices etc.
  • FIG. 2 is an alternative embodiment of an inventive Shed forming device shown in both Knife pairs 111A, 111B and 111C, 111D by means of two pairs of knives common pair of cam cylinders 116 driven will.
  • the cam cylinders 116 are 117 with their axes of rotation along the direction of movement of the knives essentially in one imaginary level arranged between those by each Knife pairs 111A, 111B and 111C, 111D formed imaginary Levels.
  • There are engagement pins at the ends of the pairs of knives provided on which again preferably curves 112 attached are, each with profiles 124 on the cam cylinders 116 are engaged.
  • Profiles 124 traveling along axis 117 are the knives of the respective knife pairs 111A, 111B and 111C, 111D when rotating the cam cylinder in their mutual position parallel to each other slidable.
  • the profiles on the cam cylinders 116 are designed so that the two pairs of knives, their respective Engagement pins with cam rollers 112 on opposite one another Areas of the outer surface of the rollers with the Profiles 124 are engaged, substantially in phase opposition are shifted towards one another to operate as an open shed dobby to enable, as explained in more detail later will be.
  • the swivel levers 114 become again and 115 actuated, at both ends connecting devices are provided in the form of double hooks 113.
  • the swivel levers 114 and 115 each optionally engaged with one of the knives of a pair of knives be, the change of intervention in a closed position the knife as shown by the knives 111C, 111D in FIG. 2 is possible.
  • rods 121 and 122 are substantially in the middle, respectively the swivel lever is articulated to operate the shafts to serve.
  • the knives are as in the embodiment according to FIG. 1 in each case held in guides in which they are essentially in The longitudinal direction of the axes 117 are displaceable (the guides are not shown in FIG. 2).
  • the cam cylinders are over a drive (not shown), for example by means of a Belt transmission, a gear transmission or one Eccentric gear can be driven synchronously with each other.
  • the profiles 124 can be in the form of grooves in the roll surface be formed, but can also be in the form of surveys exist which are in appropriately adapted devices, e.g. in the form of counter profiles, engage at the ends of the knives.
  • FIG. 3 is a schematic path-time diagram for the Tray movement and the knife distance that shown in FIGS. 1 and 2 Shed training devices according to the invention shown.
  • the specialist movement which is shown in FIG. 3 as ordinate is, and an upper, a middle and a lower Position as an excellent position, is about the Obtain rods 21 and 22 on the pivot levers 14 and 15 are articulated.
  • 3 is the movement of the knives shown in the form of the mutual knife distance, where for example curve 35 the distance between the knives 11C and 11D and curve 36 the distance between the knives 11A and 11B.
  • FIG. 3 shows a full cycle for the knife movement, the one turn of the cam cylinder of 360 ° for corresponds to the groove shape shown in FIG. 1.
  • the compartment is open, with either the stems stand in the lower or upper position.
  • weft 1 weft thread
  • the distance is at this position of the pair of knives 11C, 11D represented by curve 35 becomes small, so that in this position an intervention selection the double hook for engagement with either the knife 11C or the knife 11D is feasible.
  • the distance between the knives 11A and 11B shown in curve 36 is in this initial Position large, so that an engagement selection for the double hook not possible at the other end of the swivel levers 14 and 15 is.
  • the upper double hook of the pivot lever 14 with the Knife 11A is engaged and the lower double hook of the Swiveling lever 14 engages with the knife 11D an outward movement of the knife 11D and the knife 11A inwards that the pivot lever 14 in the direction of movement of the Knife is moved in parallel, so that a shift of the shaft controlled by the articulated rod 21 e.g. of the lower to the upper position.
  • the upper double hook of the pivot lever 14 with the knife 11A in Is engaged and the lower double hook with the knife 11C in If there is engagement, the knife 11C moves afterwards outside and the knife 11A inward that the pivot lever 14 again pivoted about the point at which the rod 21 is articulated without this point changing its position.
  • FIG. 4 the workflow is in one Closed compartment dobby shown how it works with the device would be achievable according to the present invention if the Movement of the two pairs of knives 11A, 11B and 11C, 11D with modifying Phasing expires.
  • the curve 39 shows for this Fall the distance of the knives 11C, 11D
  • curve 40 shows that Distance of the knives 11A, 11B.
  • the open one Pair of knives 11A, 11B moved to the closed position, whereby each shaft goes into the closed compartment position.
  • the closed pair of blades 11C, 11D is moved apart according to curve 39. Move depending on the control of the double hook the stems in the high or low position.
  • FIG. 5 shows the mode of operation of the shed forming device according to the invention when operated as a partially closed shed dobby.
  • the upper curves 41 to 44 denote the tray movement, while the lower curves 45 and 46 each represent the distance between the knives 11A, 11B and 11C, 11D.
  • the distance between the knives 11A, 11B according to curve 45 is large, while the distance between the knives 11C, 11D is small.
  • the distance between the knives 11A, 11B is reduced according to curve 45. As a result, all shafts begin to move towards a middle position.
  • the stems have reached a middle position at time t 3 .
  • the movement of the knives 11A, 11B according to curve 45 has ended, while the movement of the knives 11C, 11D still continues until the time t 5 .
  • the compartment is fully opened again at a slower speed of the shed movement, which compartment remains open until the time t 6 for the insertion of the second weft thread.
  • this process is repeated in the opposite direction as shown in FIG. 5.
  • the operation as a partially closed shed dobby thus represents a hybrid between the open shed and the closed shed dobby.

Claims (10)

  1. Dispositif de formation de la foule pour l'actionnement de tiges dans une mécanique d'armures, comprenant une paire de couteaux (11A, 11B) situés l'un en face de l'autre et mobiles l'un par rapport à l'autre et une pluralité de leviers pivotants (14, 15) qui sont en relation avec les tiges et dont la première extrémité, située du côté des couteaux, est pourvue d'un premier dispositif de liaison (13) grâce auquel les leviers pivotants peuvent être reliés facultativement à un des couteaux, et comprenant des premiers dispositifs à profil (16) qui peuvent tourner autour d'axes (17) qui s'étendent essentiellement dans la direction de mouvement des couteaux (11A, 11B), les dispositifs à profil (16) possédant à chaque fois au moins un profil (24) faisant le tour en ligne fermée autour de leur axe de rotation et se déportant dans la direction axiale, et chaque couteau (11A, 11B) étant en contact avec au moins un profil (24), caractérisé en ce que les leviers pivotants sont pourvus, à leur seconde extrémité, d'un second dispositif de liaison grâce auquel ils peuvent être reliés facultativement à un couteau d'une seconde paire de couteaux (11C, 11D) situés l'un en face de l'autre et mobiles l'un par rapport à l'autre, et en ce que des seconds dispositifs à profil sont prévus, les couteaux de la seconde paire de couteaux étant en contact avec le profil exécuté sur les seconds dispositifs à profil.
  2. Dispositif de formation de la foule pour l'actionnement de tiges dans une mécanique d'armures, comprenant une paire de couteaux (11A, 11B) situés l'un en face de l'autre et mobiles l'un par rapport à l'autre et une pluralité de leviers pivotants (14, 15) qui sont en relation avec les tiges et dont la première extrémité, située du côté des couteaux, est pourvue d'un premier dispositif de liaison (13) grâce auquel les leviers pivotants peuvent être reliés facultativement à un des couteaux, et comprenant des premiers dispositifs à profil (16) qui peuvent tourner autour d'axes (17) qui s'étendent essentiellement dans la direction de mouvement des couteaux (11A, 11B), les dispositifs à profil (16) possédant à chaque fois au moins un profil (24) faisant le tour en ligne fermée autour de leur axe de rotation et se déportant dans la direction axiale, et chaque couteau (11A, 11B) étant en contact avec au moins un profil (24), caractérisé en ce que les leviers pivotants sont pourvus, à leur seconde extrémité, d'un second dispositif de liaison grâce auquel ils peuvent être reliés facultativement à un couteau d'une seconde paire de couteaux (11C, 11D) situés l'un en face de l'autre et mobiles l'un par rapport à l'autre, les couteaux de la seconde paire étant à chaque fois en contact avec au moins un profil (24) des premiers dispositifs à profil.
  3. Dispositif de formation de la foule selon la revendication 1, caractérisé en ce que les premiers et seconds dispositifs à profil peuvent être commandés ensemble par le biais d'un engrenage.
  4. Dispositif de formation de la foule selon l'une des revendications 1 à 3, caractérisé en ce que les dispositifs à profil sont pourvus de cylindres de courbe dans lesquels sont exécutées des gorges dans lesquelles s'enclenchent des tenons exécutés aux extrémités des couteaux.
  5. Dispositif de formation de la foule selon la revendication 4, caractérisé en ce que les tenons sont pourvus de galets de came s'enclenchant dans les gorges.
  6. Dispositif de formation de la foule selon l'une des revendications 1 à 5, caractérisé en ce que les couteaux de la première paire de couteaux sont mobiles simultanément et en opposition de phase par rapport aux couteaux de la seconde paire de couteaux.
  7. Dispositif de formation de la foule selon l'une des revendications 1 à 5, caractérisé en ce que les deux paires de couteaux sont mobiles l'une après l'autre et en ce que, dans les positions d'arrêt des deux paires de couteaux, des distances complémentaires des couteaux les uns par rapport aux autres peuvent être adoptées à chaque fois.
  8. Dispositif de formation de la foule selon l'une des revendications 1 à 5, caractérisé en ce que les paires de couteaux sont mobiles de manière à ce que, pendant une première partie de cycle, la première paire de couteaux se déplace et la seconde paire de couteaux reste dans une position d'arrêt, à ce que dans une partie de cycle consécutive, les deux paires de couteaux se déplacent simultanément et à ce que, dans une autre partie de cycle consécutive, seule la deuxième paire de couteaux se déplace tandis que la première paire de couteaux reste dans une position d'arrêt, les deux paires de couteaux présentant à chaque fois des distances complémentaires des couteaux les uns par rapport aux autres dans les parties de cycle où une paire de couteaux est sans mouvement.
  9. Dispositif de formation de la foule selon l'une des revendications 1 à 8, caractérisé en ce que les dispositifs à profil possèdent à chaque fois deux profils décalés l'un par rapport à l'autre qui sont à chaque fois associés à un couteau d'une paire de couteaux.
  10. Dispositif de formation de la foule selon l'une des revendications 1 à 7, caractérisé en ce que le dispositif de liaison (13) comprend un double crochet qui peut être mis en prise, de manière facultative, avec un des deux couteaux d'une paire de couteaux associée.
EP95113778A 1994-09-01 1995-09-01 Dispositif de formation de la foule Expired - Lifetime EP0699786B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9414192U 1994-09-01
DE9414192U DE9414192U1 (de) 1994-09-01 1994-09-01 Fachbildungsvorrichtung

Publications (3)

Publication Number Publication Date
EP0699786A2 EP0699786A2 (fr) 1996-03-06
EP0699786A3 EP0699786A3 (fr) 1997-09-03
EP0699786B1 true EP0699786B1 (fr) 1998-01-28

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Family Applications (1)

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EP95113778A Expired - Lifetime EP0699786B1 (fr) 1994-09-01 1995-09-01 Dispositif de formation de la foule

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EP (1) EP0699786B1 (fr)
DE (2) DE9414192U1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9414192U1 (de) * 1994-09-01 1994-10-27 Staeubli & Trumpelt Fachbildungsvorrichtung
DE19861000B4 (de) * 1997-02-06 2006-11-02 Texo Ab Dobby zur Steuerung der Bewegungen der Schäfte eines Webautomaten
DE19804041B4 (de) * 1997-02-06 2005-10-06 Texo Ab Dobby zur Steuerung der Bewegungen der Schaftrahmen eines Webautomaten
DE10343377B3 (de) † 2003-09-17 2005-04-28 Groz Beckert Kg Schaftantrieb für Webmaschinenschäfte
EP2278052B1 (fr) 2009-07-20 2014-03-05 Groz-Beckert KG Dispositif d'entraînement pour un cadre de lisses d'un métier à tisser

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE32559C (de) * ch. J. kane und R. E. lester in New-York Geschirr für mechanische Webstühle
DE39816C (de) * J. A. S. BlER-NATZKI in Hamburg und R. E. LESTER in New-York Webstuhlgeschirr
DE2338124C3 (de) * 1973-07-27 1980-05-08 Johann Kaiser Gmbh & Co Kg, Maschinenfabrik Und Eisengiesserei, 8580 Bayreuth Doppelhub-Schaftmaschine Bauart Hattersley
CH643890A5 (de) * 1979-11-28 1984-06-29 Setafin Sa Schaftantrieb an einer rundwebmaschine.
CH653385A5 (en) * 1981-05-15 1985-12-31 Setafin Sa Heald-frame drive on a circular weaving machine
FR2689913A1 (fr) 1992-04-14 1993-10-15 Staubli Trumpelt Gmbh Maschine Mécanisme pour la commande alternative des couteaux dans les ratières lourdes du type à pas fermé.
DE9414192U1 (de) * 1994-09-01 1994-10-27 Staeubli & Trumpelt Fachbildungsvorrichtung

Also Published As

Publication number Publication date
EP0699786A2 (fr) 1996-03-06
EP0699786A3 (fr) 1997-09-03
DE9414192U1 (de) 1994-10-27
DE59501355D1 (de) 1998-03-05

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