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EP0370959A1 - Braiding machine - Google Patents

Braiding machine Download PDF

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Publication number
EP0370959A1
EP0370959A1 EP89810895A EP89810895A EP0370959A1 EP 0370959 A1 EP0370959 A1 EP 0370959A1 EP 89810895 A EP89810895 A EP 89810895A EP 89810895 A EP89810895 A EP 89810895A EP 0370959 A1 EP0370959 A1 EP 0370959A1
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EP
European Patent Office
Prior art keywords
propulsion
rollers
braider according
rotary member
drive means
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.)
Withdrawn
Application number
EP89810895A
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German (de)
French (fr)
Inventor
Charles Maillefer
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Individual
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Individual
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Publication date
Application filed by Individual filed Critical Individual
Publication of EP0370959A1 publication Critical patent/EP0370959A1/en
Withdrawn legal-status Critical Current

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    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04CBRAIDING OR MANUFACTURE OF LACE, INCLUDING BOBBIN-NET OR CARBONISED LACE; BRAIDING MACHINES; BRAID; LACE
    • D04C3/00Braiding or lacing machines
    • D04C3/40Braiding or lacing machines for making tubular braids by circulating strand supplies around braiding centre at equal distances
    • D04C3/42Braiding or lacing machines for making tubular braids by circulating strand supplies around braiding centre at equal distances with means for forming sheds by controlling guides for individual threads

Definitions

  • the invention relates to a braider comprising a member for forming a braid defining a central axis, a first and a second rotary member driven in rotation in opposite directions to each other around said axis, a set of thread holders. chain mounted on the first member so as to rotate integrally with it, and a set of weft thread holder rotating with the second rotary member.
  • These machines are used for the manufacture of tubular braids or allow to fill with a braid on their outer surface an electrical conductor, a tube or an elongated object.
  • the braid itself is made up of textile or metallic threads.
  • the object of this invention is more particularly a braider of the so-called fast type.
  • a group of external coils, mounted on wire carriers rotate around the axis of the machine. These spools are sometimes called warp spools, by analogy with weaving looms.
  • the wires delivered by the chain reels must pass alternately above and below the internal reels rotating around the same axis but in opposite directions.
  • This second group of coils, or weft coils deliver threads which go directly to the braiding point, near the central axis of the machine.
  • the weft coils are completely surrounded by surfaces formed by the displacement of the warp threads. It is therefore no longer possible to propel them by a permanent mechanical connection because the warp threads must pass above, below them and between them.
  • the means of propulsion acts intermittently. It consists for example of gears, Maltese crosses, toothed belts. These means act in turn, each carriage or thread carrier of the weft coils always being in contact with at least one propulsion means. The problem is that of a train whose wagons should be propelled individually to let a wire pass between them.
  • Swiss patent Boston Machinery Co no. 88533 describes a braiding machine in which a rotary member carries propulsion means which act on weft thread carriers guided by one or other members.
  • the general design of the machine comprises more than two main members in relative rotation with each other and the periodic deviations of the warp threads through the surface which envelops the paths of the weft threads involve contacts between the warp threads and other pieces then that these other parts move differently from the wires themselves, causing friction and wear of the wires.
  • the object of the invention is a braiding machine which has the features of claim 1 or any one of claims 2 to 11.
  • the principle consists in propelling the weft reels in a continuous manner from a disc coaxial to the disc which carries the warp reels.
  • This weft disc rotates in the opposite direction, normally but not necessarily, at the same speed as the warp spool disc.
  • a simple drive provides this, without requiring a positive slip-free ratio for this.
  • FIG. 1 An exemplary embodiment is shown in FIG. 1.
  • the braid 1 is formed at the braiding point 3. It is pulled by a winch 2 driven by a set of gears 16a, 16b and is wound up on the winder 4. It can cover an elongated object 5, such as for example an electrical conductor or a tube coming from a reel 6.
  • a stationary tube 7 carries the rotating part 8 which rotates in synchronism with the weft coils 9.
  • the wheel 10 carries the chain coils 11.
  • the drive takes place from a motor 13 by conventional means such as, for example, trapezoidal belts 12.
  • One or more rollers, smooth or toothed 14 held by a fixed axis 15 reverse the movement by transmitting it to the disc 8 coaxial with the wheel 10.
  • This movement is given by levers 18 rotatably mounted on axes 22 carried by the disk 10.
  • the extreme positions of the lever 18 are also visible in FIG. 2.
  • Lines 17 in fig. 2 are sets of points which represent the successive places where the warp threads 17 of FIG. 1 cut the cylindrical surface of which fig. 2 is a partial development.
  • the rail 20 and the wheel 10 are provided with slots 23 to let the warp yarns 17 pass.
  • the rail 20 is therefore interrupted as many times as there are weft coils 9.
  • the present invention provides a simple means of propelling the wagons 30 by the disc 8 while letting the warp threads pass through.
  • One embodiment consists in pushing the wagons 30 by rollers 34 mounted on the disc 8 pressing on the rollers 33 carried by the wagons 30.
  • the rollers 34 can be, but not necessarily, covered with an elastic bandage and / or be driven at a peripheral speed substantially equal to that of the passage of the wire 17. This would be achieved by contact on the disc 10.
  • a roller 35 can drive the roller 34 also by contact.
  • the roller 35 is actuated by friction by the disc 10 which carries the chain reels.
  • the rollers 34 and 35 are mounted on bearings fixed to the disc 8 which propels the weft coils.
  • FIG. 3 Another embodiment shown schematically in FIG. 3, provides for a thrust by a stream of compressed air on a plate 40 integral with the wagon 30.
  • a channel 42 brings this air from a blower 43 or of a compressor and projects it through a plate 41.
  • a narrow free space is thus created between the plates 40 and 41 to allow the wire 17 to pass through.
  • the wagon 30 is here guided, on the rail 20 which carries it, by rollers 31.
  • roller devices 33 and 34 or plates 40 and 41 can be placed at each end of the wagon to impart to it not only the acceleration on starting but also the deceleration in the event of braking and stopping.
  • a drive system for the wagons 30 comprising at the end of the channels 42 supplied by the blower 43 a branch 44/45 each branch of which ends in a perforated plate 46/47 similar to plate 41.
  • Counter plates 40, 40 ′ integral with two adjacent wagons 30 receive the currents of compressed air and undergo their thrust.
  • Figs. 5 and 6 relate to an embodiment which corresponds to the constructive principles of the example of FIGS. 1 and 2.
  • each wagon 30 is powered by two rollers 33 and 33 ′.
  • Each roller 34 carried by the disc 8 and rolling in contact with a roller 35 leads two rollers 33 and 33 ′ carried by two successive wagons 30.
  • Fig. 5 is a top plan view of a sector of the machine. This carries eight weft coils 9 and eight warp coils 11.
  • We see in fig. 5 three rail segments 20 fixed above the periphery of the disc 10, on spacers 120, which also carry brackets 121 for the chain spools 11.
  • the wires 17 are guided by eyelets 122, attached to the brackets 121 and the eyelets 123 which are integral with the levers 18 here constituted by vertical rods sliding in slots in the rail 20 and supported by springs (not shown).
  • the rods 18 comprise a bent part 18a, the end of which is pressed against the cam 21 by the springs (see also fig. 5).
  • the cam 21 extends at the periphery of the disc 8, under the rail 20.
  • Two wagons 30 are partially shown in FIGS. 5 and 6. They each comprise a frame consisting of two elongated plates 301 and 302, connected on the one hand by angles 303 which carry at each end of the wagon two rollers 33 and 33 ′, and on the other hand by two parallel stirrups 304 and 305. These stirrups support on the one hand a guide train (not shown) which includes rollers or slides 31 of FIG. 2 and ensures the guiding and the suspension of the wagon on the rail 20, and on the other hand the guard plates 306 of transparent plastic which eliminate the risk that the wires 17 do not come into contact with any element of the wagons or coils 9 they wear.
  • the stirrups 304 and 305 also carry bearings 307 fitted with pins 308 and 309, one of which is retractable for mounting the coils 9.
  • the wagons 30 are driven by sets of rollers 33, 33 ′, 34, 35.
  • Each intermediate space between two wagons 30, on the disc 8, is provided with a console 350 on which a roller 35 which passes passes through a slot 351 in the disc 8 and rolls on the disc 10 (see fig. 6) and a roller 34 which rotates in contact with the roller 35 and rotates two rollers 33 and 33 ′ belonging to two adjacent wagons 30.
  • the wagons are continuously propelled by the disc 8 in the opposite direction to that of the disk 10 and the rail 20, by the contact of the rollers 34 and 33.
  • the coils 9 and the wagons 30 are entirely carried by rollers or slides 31 on the rail 20, which also receives the stresses due to centrifugal force. This arrangement in no way disturbs the passage of the wires 17.
  • the wire is pinched only by the horizontal movement of the wagons 30, due to friction on the rail. This pinching force is much less than the weight of the wagon.
  • Each wagon is driven between two rollers 33 and 33 ′ so that its speed is controlled.
  • the passage of the wires 17 between the rollers 33 or 33 ′ and 34 occurs at a place where the path of the wire is the most inclined, which minimizes the upward push that the carriage can undergo, and the jolting which could result for the wire.
  • the surfaces of the rollers 33, 33 ′ and 34 are tangent to the sinusoidal trajectory of the wire.
  • the general construction of the machine comprises only two speed levels: On the one hand, the disk 8 and the elements which rotate with it and, on the other hand, the disk 10 and the elements which rotate with it. It may happen that there is a slip between the opposite speeds of these two discs, but it has no influence on the operation.
  • the wagons are always at the desired location relative to the path of the wires 17. This is due to the fact that the cam 21 is carried by the disc 8.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Braiding, Manufacturing Of Bobbin-Net Or Lace, And Manufacturing Of Nets By Knotting (AREA)

Abstract

The trucks (30) carrying the weft bobbins (9) are guided by the rail (20) which is fixed to the rotary disc (10) carrying the warp bobbins (11). Propulsion means mounted on the inner rotary disc (8) propel the trucks continuously in the opposite direction. Thus, the levers (18) acting on the warp yarns (17) are controlled in a reciprocating movement by the cam (21), in order to move the warp yarns (23) into the slots (22) of the outer rotary assembly (10, 20) and extract them from it by passing them between the trucks and their continuous propulsion means, without solid parts being subjected to friction. <IMAGE>

Description

L'invention concerne une tresseuse compre­nant un organe de formation d'une tresse définissant un axe central, un premier et un second organe rotatifs entraînés en rotation en sens inverse l'un de l'autre autour dudit axe, un jeu de porte-fil de chaîne montés sur le premier organe de manière à tourner solidaire­ment avec lui, et un jeu de porte-fil de trame tournant avec le second organe rotatif.The invention relates to a braider comprising a member for forming a braid defining a central axis, a first and a second rotary member driven in rotation in opposite directions to each other around said axis, a set of thread holders. chain mounted on the first member so as to rotate integrally with it, and a set of weft thread holder rotating with the second rotary member.

Ces machines servent à la fabrication de tresses tubulaires ou permettent de garnir d'une tresse sur leur surface extérieure un conducteur électrique, un tube ou un objet allongé. La tresse elle-même est constituée de fils textiles ou métalliques.These machines are used for the manufacture of tubular braids or allow to fill with a braid on their outer surface an electrical conductor, a tube or an elongated object. The braid itself is made up of textile or metallic threads.

Les tresseuses à bobines danseuses et les tresseuses dites rapides sont bien connues.Dancer coil braiders and so-called fast braiders are well known.

L'objet de cette invention est plus particu­lièrement une tresseuse du type dit rapide. Un groupe de bobines extérieures, montées sur des porte-fil tour­nent autour de l'axe de la machine. On nomme parfois ces bobines, bobines de chaîne, par analogie aux mé­tiers à tisser. Les fils débités par les bobines de chaînes doivent passer alternativement au-dessus et au-dessous des bobines intérieures tournant autour du même axe mais en sens inverse. Ce deuxième groupe de bobines, ou bobines de trame, débitent des fils qui vont directement au point de tressage, près de l'axe central de la machine.The object of this invention is more particularly a braider of the so-called fast type. A group of external coils, mounted on wire carriers rotate around the axis of the machine. These spools are sometimes called warp spools, by analogy with weaving looms. The wires delivered by the chain reels must pass alternately above and below the internal reels rotating around the same axis but in opposite directions. This second group of coils, or weft coils, deliver threads which go directly to the braiding point, near the central axis of the machine.

Les bobines de trame sont entièrement entou­rées par des surfaces formées par le déplacement des fils de chaîne. Il n'est dès lors plus possible de les propulser par une liaison mécanique permanente car les fils de chaîne doivent passer au-dessus, au-dessous d'elles et entre elles. Dans les machines tresseuses connues à ce jour, le moyen de propulsion agit par intermittence. Il est constitué par exemple par des en­grenages, des croix de Malte, des courroies dentées. Ces moyens agissent tour à tour, chaque chariot ou por­te-fil des bobines de trame étant toujours en contact avec au moins un moyen de propulsion. Le problème est celui d'un train dont les wagons devraient être propul­sés individuellement pour laisser passer un fil entre eux.The weft coils are completely surrounded by surfaces formed by the displacement of the warp threads. It is therefore no longer possible to propel them by a permanent mechanical connection because the warp threads must pass above, below them and between them. In braiding machines known to date, the means of propulsion acts intermittently. It consists for example of gears, Maltese crosses, toothed belts. These means act in turn, each carriage or thread carrier of the weft coils always being in contact with at least one propulsion means. The problem is that of a train whose wagons should be propelled individually to let a wire pass between them.

Les moyens de propulsion actuellement mis en oeuvre, engrenages, croix de Malte, chaînes ou cour­roies crantées impliquent un grand nombre de pièces. De plus, la plupart d'entre eux nécessitent une bonne lubrification. Un bain d'huile n'est pas possible pour les engrenages ou les croix de Malte sans grande complication. On lubrifie à la graisse. Secondement, ces moyens de propulsion doivent être positifs pour garder la précision nécessaire dans la distance entre les porte-fil, d'où la nécessité d'une denture. Il en résulte un bruit qui limite la vitesse des machines malgré les capots d'insonorisation que l'on place au­tour des machines. La maintenance des machines avec ces pièces lubrifiées à la graisse et leur nettoyage pério­dique nécessaire entraînent des frais d'entretien élevés.The means of propulsion currently used, gears, Maltese cross, chains or toothed belts involve a large number of parts. In addition, most of them require good lubrication. An oil bath is not possible for gears or Maltese crosses without great complication. We lubricate with grease. Secondly, these means of propulsion must be positive in order to keep the necessary precision in the distance between the wire holders, hence the need for teeth. This results in noise which limits the speed of the machines despite the soundproofing covers that are placed around the machines. Maintenance of the machines with these grease-lubricated parts and their necessary periodic cleaning entail high maintenance costs.

Le brevet suisse Boston Machinery Co no 88533 décrit une tresseuse dans laquelle un organe ro­tatif porte des moyens de propulsion qui agissent sur des porte-fil de trame guidés par un ou d'autres organes. La conception générale de la machine comporte plus de deux organes principaux en rotation relative les uns avec les autres et les déviations périodiques des fils de chaîne au travers de la surface qui enve­loppe les chemins des fils de trame impliquent des con­tacts entre les fils de chaîne et d'autres pièces alors que ces autres pièces se déplacent différemment des fils eux-mêmes d'où frottement et usure des fils.Swiss patent Boston Machinery Co no. 88533 describes a braiding machine in which a rotary member carries propulsion means which act on weft thread carriers guided by one or other members. The general design of the machine comprises more than two main members in relative rotation with each other and the periodic deviations of the warp threads through the surface which envelops the paths of the weft threads involve contacts between the warp threads and other pieces then that these other parts move differently from the wires themselves, causing friction and wear of the wires.

La présente invention permet

  • 1. De se passer de lubrification fréquente car il n'y a que les roulements à billes qui la néces­sitent mais ils peuvent, à la limite, être lubrifiés à vie.
  • 2. De diminuer le bruit.
  • 3. D'augmenter la vitesse.
  • 4. De réduire le nombre de pièces, surtout celui de pièces précises.
  • 5. De réduire la maintenance nécessaire.
  • 6. D'éviter les risques de détérioration des fils par suite de frottements.
The present invention allows
  • 1. To do without frequent lubrication because there are only ball bearings that require it but they can, at the limit, be lubricated for life.
  • 2. Reduce noise.
  • 3. Increase the speed.
  • 4. Reduce the number of parts, especially the number of specific parts.
  • 5. Reduce the maintenance required.
  • 6. Avoid the risks of deterioration of the wires due to friction.

Pour atteindre ce but, l'objet de l'inven­tion est une tresseuse qui présente les caractéristi­ques de la revendication 1 ou de l'une quelconque des revendications 2 à 11.To achieve this object, the object of the invention is a braiding machine which has the features of claim 1 or any one of claims 2 to 11.

Les explications qui suivent et qui se réfè­rent au dessin annexé permettent de comprendre l'invention.

  • La fig. 1 est une vue schématique d'une for­me de réalisation d'une tresseuse selon l'invention,
  • la fig. 2 est une vue partielle, développée, également schématique, à échelle agrandie, de la tres­seuse de la fig. 1, dans le sens de la flèche A,
  • la fig. 3 est une vue partielle également schématique, montrant une variante des moyens de pro­pulsion des bobines autour de l'axe central,
  • la fig. 4 est une vue analogue à la fig. 3 montrant une variante du mode d'entraînement de la fig. 3,
  • la fig. 5 est une vue plus détaillée, en plan de dessus d'un secteur d'une forme d'exécution de la machine de la fig. 1 et
  • la 6 est une vue partielle, en élévation dé­veloppée dans le sens de la flèche B, montrant une exé­cution pratique de la machine de la fig. 1.
The explanations which follow and which refer to the appended drawing make it possible to understand the invention.
  • Fig. 1 is a schematic view of an embodiment of a braider according to the invention,
  • fig. 2 is a partial, developed, also schematic view, on an enlarged scale, of the braider of FIG. 1, in the direction of arrow A,
  • fig. 3 is a partial schematic view also showing a variant of the means for propelling the coils around the central axis,
  • fig. 4 is a view similar to FIG. 3 showing a variant of the drive mode of FIG. 3,
  • fig. 5 is a more detailed view, in top plan of a sector of an embodiment of the machine of FIG. 1 and
  • 6 is a partial view, in elevation developed in the direction of arrow B, showing a practical execution of the machine of FIG. 1.

Le principe consiste à propulser les bobines de trame d'une manière continue à partir d'un disque coaxial au disque qui porte les bobines de chaîne. Ce disque de trame tourne en sens contraire, normalement mais pas nécessairement, à la même vitesse que le dis­que des bobines de chaîne. Un entraînement simple y pourvoit, ceci sans nécessiter pour cela un rapport po­sitif exempt de glissement.The principle consists in propelling the weft reels in a continuous manner from a disc coaxial to the disc which carries the warp reels. This weft disc rotates in the opposite direction, normally but not necessarily, at the same speed as the warp spool disc. A simple drive provides this, without requiring a positive slip-free ratio for this.

Un exemple de réalisation est représenté sur la fig. 1.An exemplary embodiment is shown in FIG. 1.

La tresse 1 se forme au point de tressage 3. Elle est tirée par un treuil 2 entraîné par un jeu d'engrenages 16a, 16b et s'enroule au bobinoir 4. Elle peut recouvrir un objet allongé 5, comme par exemple un conducteur électrique ou un tube provenant d'un dévi­doir 6. Un tube stationnaire 7 porte la pièce tournante 8 qui tourne en synchronisme avec les bobines de trame 9. La roue 10 porte les bobines de chaîne 11. L'entraî­nement a lieu à partir d'un moteur 13 par des moyens classiques tels que, par exemple, des courroies trapézoödales 12. Un ou plusieurs galets, lisses ou dentés 14 tenus par un axe fixe 15 inversent le mouve­ment en le transmettant au disque 8 coaxial à la roue 10.The braid 1 is formed at the braiding point 3. It is pulled by a winch 2 driven by a set of gears 16a, 16b and is wound up on the winder 4. It can cover an elongated object 5, such as for example an electrical conductor or a tube coming from a reel 6. A stationary tube 7 carries the rotating part 8 which rotates in synchronism with the weft coils 9. The wheel 10 carries the chain coils 11. The drive takes place from a motor 13 by conventional means such as, for example, trapezoidal belts 12. One or more rollers, smooth or toothed 14 held by a fixed axis 15 reverse the movement by transmitting it to the disc 8 coaxial with the wheel 10.

Les fils de chaîne 17, en plus de la rota­tion de la roue 10 autour de l'axe de la machine subis­sent un mouvement pour passer alternativement au-dessus et au-dessous des bobines de trame 9. Ce mouvement est donné par des leviers 18 montés rotativement sur des axes 22 portés par le disque 10. Des galets 19 et une came 21 solidaire du disque 8 mais qui pourrait aussi être fixe commandent les mouvements de rotation, d'am­ plitude limitée, des leviers 18. Il en résulte un mou­vement plus ou moins sinusoïdal représenté sur la fig. 2 où apparaissent aussi les fils de chaîne 17 passant sur et sous une bobine de trame 9, elle-même tenue rotativement sur son axe par son support 30 et des glissières ou des galets 31, freinée par le frein 32 non détaillé ici. Les positions extrêmes du levier 18 sont également visibles à la fig. 2. Les lignes 17 à la fig. 2 sont des ensembles de points qui représentent les endroits successifs où les fils de chaîne 17 de la fig. 1 coupent la surface cylindrique dont la fig. 2 est un développement partiel.The warp threads 17, in addition to the rotation of the wheel 10 around the axis of the machine, undergo a movement to pass alternately above and below the weft reels 9. This movement is given by levers 18 rotatably mounted on axes 22 carried by the disk 10. Rollers 19 and a cam 21 integral with the disk 8 but which could also be fixed control the rotational movements, am limited plitude, levers 18. This results in a more or less sinusoidal movement shown in FIG. 2 where also appear the warp son 17 passing over and under a weft reel 9, itself held rotatably on its axis by its support 30 and slides or rollers 31, braked by the brake 32 not detailed here. The extreme positions of the lever 18 are also visible in FIG. 2. Lines 17 in fig. 2 are sets of points which represent the successive places where the warp threads 17 of FIG. 1 cut the cylindrical surface of which fig. 2 is a partial development.

Le rail 20 et la roue 10 sont munis de fen­tes 23 pour laisser passer les fils de chaîne 17. Le rail 20 est donc interrompu autant de fois qu'il y a de bobines de trame 9.The rail 20 and the wheel 10 are provided with slots 23 to let the warp yarns 17 pass. The rail 20 is therefore interrupted as many times as there are weft coils 9.

La présente invention offre un moyen simple de propulser les wagonnets 30 par le disque 8 tout en laissant passer les fils de chaîne 17. Une forme d'exé­cution consiste à pousser les wagonnets 30 par des ga­lets 34 montés sur le disque 8 appuyant sur les galets 33 portés par les wagonnets 30. Les galets 34 peuvent être, mais pas nécessairement, garnis d'un bandage élastique et/ou être entraînés à une vitesse périphéri­que sensiblement égale à celle du passage du fil 17. Ceci serait réalisé par un contact sur le disque 10. Par exemple, un galet 35 peut entraîner le galet 34 également par contact. Le galet 35 est actionné par frottement par le disque 10 qui porte les bobines de chaîne. Les galets 34 et 35 sont montés sur des paliers fixés au disque 8 qui propulse les bobines de trame.The present invention provides a simple means of propelling the wagons 30 by the disc 8 while letting the warp threads pass through. One embodiment consists in pushing the wagons 30 by rollers 34 mounted on the disc 8 pressing on the rollers 33 carried by the wagons 30. The rollers 34 can be, but not necessarily, covered with an elastic bandage and / or be driven at a peripheral speed substantially equal to that of the passage of the wire 17. This would be achieved by contact on the disc 10. For example, a roller 35 can drive the roller 34 also by contact. The roller 35 is actuated by friction by the disc 10 which carries the chain reels. The rollers 34 and 35 are mounted on bearings fixed to the disc 8 which propels the weft coils.

Une autre forme d'exécution représentée schématiquement à la fig. 3, prévoit une poussée par un courant d'air comprimé sur une plaque 40 solidaire du wagonnet 30. Un canal 42 amène cet air d'une soufflante 43 ou d'un compresseur et le projette à travers une plaque 41. Un espace libre étroit est ainsi créé entre les plaques 40 et 41 pour laisser passer le fil 17. Le wagonnet 30 est ici guidé, sur le rail 20 qui le porte, par des galets 31.Another embodiment shown schematically in FIG. 3, provides for a thrust by a stream of compressed air on a plate 40 integral with the wagon 30. A channel 42 brings this air from a blower 43 or of a compressor and projects it through a plate 41. A narrow free space is thus created between the plates 40 and 41 to allow the wire 17 to pass through. The wagon 30 is here guided, on the rail 20 which carries it, by rollers 31.

Les dispositifs de galets 33 et 34 ou de plaques 40 et 41 peuvent être placés à chaque extrémité du wagonnet pour lui imprimer non seulement l'accéléra­tion à la mise en marche mais aussi le ralentissement en cas de freinage et d'arrêt.The roller devices 33 and 34 or plates 40 and 41 can be placed at each end of the wagon to impart to it not only the acceleration on starting but also the deceleration in the event of braking and stopping.

Ainsi, à la fig. 4, on a représenté, à nou­veau de manière schématique, un système d'entraînement des wagonnets 30 comportant à l'extrémité des canaux 42 alimentés par la soufflante 43 un embranchement 44/45 dont chaque branche se termine par une plaque perforée 46/47 analogue à la plaque 41. Des plaques antagonistes 40, 40′ solidaires de deux wagonnets 30 adjacents re­çoivent les courants d'air comprimé et subissent leur poussée.Thus, in fig. 4, there is shown, again schematically, a drive system for the wagons 30 comprising at the end of the channels 42 supplied by the blower 43 a branch 44/45 each branch of which ends in a perforated plate 46/47 similar to plate 41. Counter plates 40, 40 ′ integral with two adjacent wagons 30 receive the currents of compressed air and undergo their thrust.

Les fig. 5 et 6 se rapportent à une forme d'exécution qui correspond aux principes constructifs de l'exemple des fig. 1 et 2. Cependant dans cette exé­cution, chaque wagonnet 30 est propulsé par deux galets 33 et 33′. Chaque galet 34 porté par le disque 8 et roulant au contact d'un galet 35 conduit deux galets 33 et 33′ portés par deux wagonnets 30 successifs.Figs. 5 and 6 relate to an embodiment which corresponds to the constructive principles of the example of FIGS. 1 and 2. However, in this embodiment, each wagon 30 is powered by two rollers 33 and 33 ′. Each roller 34 carried by the disc 8 and rolling in contact with a roller 35 leads two rollers 33 and 33 ′ carried by two successive wagons 30.

Différents détails d'exécution sont visibles aux fig. 5 et 6.Various execution details are visible in figs. 5 and 6.

La fig. 5 est une vue en plan de dessus d'un secteur de la machine. Celle-ci porte huit bobines de trame 9 et huit bobines de chaîne 11. On voit à la fig. 5 trois segments de rail 20 fixés au dessus de la périphérie du disque 10, sur des entretoises 120, qui portent également des consoles 121 pour les bobines de chaîne 11. Les fils 17 sont guidés par des oeillets 122, fixés aux consoles 121 et des oeillets 123 qui sont solidaires des leviers 18 ici constitues par des tiges verticales coulissant dans des fentes du rail 20 et supportées par des ressorts (non représentés). Les tiges 18 comportent une partie coudée 18a dont l'extré­mité est appuyée contre la came 21 par les ressorts (voir aussi fig. 5). La came 21 s'étend à la périphérie du disque 8, sous le rail 20.Fig. 5 is a top plan view of a sector of the machine. This carries eight weft coils 9 and eight warp coils 11. We see in fig. 5 three rail segments 20 fixed above the periphery of the disc 10, on spacers 120, which also carry brackets 121 for the chain spools 11. The wires 17 are guided by eyelets 122, attached to the brackets 121 and the eyelets 123 which are integral with the levers 18 here constituted by vertical rods sliding in slots in the rail 20 and supported by springs (not shown). The rods 18 comprise a bent part 18a, the end of which is pressed against the cam 21 by the springs (see also fig. 5). The cam 21 extends at the periphery of the disc 8, under the rail 20.

Deux wagonets 30 sont partiellement repré­sentés aux fig. 5 et 6. Ils comportent chacun une arma­ture constituée de deux plaques allongées 301 et 302, reliées d'une part par des cornières 303 qui portent à chaque extrémité du wagonnet deux galets 33 et 33′, et d'autre part par deux étriers parallèles 304 et 305. Ces étriers supportent d'une part un train de guidage (non représenté) qui comporte des galets ou glissières 31 de la fig. 2 et assure le guidage et la suspension du wagonnet sur le rail 20, et d'autre part les plaques de garde 306 en matière plastique transparente qui éliminent le risque que les fils 17 n'entrent en con­tact avec tout élément des wagonnets ou des bobines 9 qu'ils portent. Les étriers 304 et 305 portent encore des paliers 307 équipés de tourillons 308 et 309 dont l'un est rétractile pour le montage des bobines 9.Two wagons 30 are partially shown in FIGS. 5 and 6. They each comprise a frame consisting of two elongated plates 301 and 302, connected on the one hand by angles 303 which carry at each end of the wagon two rollers 33 and 33 ′, and on the other hand by two parallel stirrups 304 and 305. These stirrups support on the one hand a guide train (not shown) which includes rollers or slides 31 of FIG. 2 and ensures the guiding and the suspension of the wagon on the rail 20, and on the other hand the guard plates 306 of transparent plastic which eliminate the risk that the wires 17 do not come into contact with any element of the wagons or coils 9 they wear. The stirrups 304 and 305 also carry bearings 307 fitted with pins 308 and 309, one of which is retractable for mounting the coils 9.

L'entraînement des wagonnets 30 est assuré par des jeux de galets 33, 33′, 34, 35. Chaque espace intercalaire entre deux wagonnets 30, sur le disque 8, est muni d'une console 350 sur laquelle pivotent un ga­let 35 qui passe à travers une fente 351 dans le disque 8 et roule sur le disque 10 (voir fig. 6) et un galet 34 qui tourne au contact du galet 35 et fait tourner deux galets 33 et 33′ appartenant à deux wagonnets 30 adjacents. Indépendamment de ces mouvements de rota­tion, qui sont destinés à éliminer les frottements, les wagonnets sont propulsés en continu par le disque 8 dans le sens inverse de celui du disque 10 et du rail 20, par le contact des galets 34 et 33. Les bobines 9 et les wagonnets 30 sont entièrement portés par des ga­lets ou glissières 31 sur le rail 20, qui reçoit égale­ment les contraintes dues à la force centrifuge. Ce montage ne perturbe en rien le passage des fils 17. Le fil n'est pincé que par le mouvement horizontal des wa­gonnets 30, dû aux frottements sur le rail. Cette force de pincement est bien inférieure au poids du wagonnet.The wagons 30 are driven by sets of rollers 33, 33 ′, 34, 35. Each intermediate space between two wagons 30, on the disc 8, is provided with a console 350 on which a roller 35 which passes passes through a slot 351 in the disc 8 and rolls on the disc 10 (see fig. 6) and a roller 34 which rotates in contact with the roller 35 and rotates two rollers 33 and 33 ′ belonging to two adjacent wagons 30. Independently of these rotational movements, which are intended to eliminate friction, the wagons are continuously propelled by the disc 8 in the opposite direction to that of the disk 10 and the rail 20, by the contact of the rollers 34 and 33. The coils 9 and the wagons 30 are entirely carried by rollers or slides 31 on the rail 20, which also receives the stresses due to centrifugal force. This arrangement in no way disturbs the passage of the wires 17. The wire is pinched only by the horizontal movement of the wagons 30, due to friction on the rail. This pinching force is much less than the weight of the wagon.

Chaque wagonnet est conduit entre deux ga­lets 33 et 33′ de sorte que sa vitesse est contrôlée. En outre, le passage des fils 17 entre les galets 33 ou 33′ et 34 se produit à un endroit où la trajectoire du fil est la plus inclinée, ce qui minimise la poussée vers le haut que le chariot peut subir, et la secousse qui pourrait en résulter pour le fil. Les surfaces des galets 33, 33′ et 34 sont tangentes à la trajectoire sinusoïdale du fil.Each wagon is driven between two rollers 33 and 33 ′ so that its speed is controlled. In addition, the passage of the wires 17 between the rollers 33 or 33 ′ and 34 occurs at a place where the path of the wire is the most inclined, which minimizes the upward push that the carriage can undergo, and the jolting which could result for the wire. The surfaces of the rollers 33, 33 ′ and 34 are tangent to the sinusoidal trajectory of the wire.

La construction générale de la machine ne comporte que deux niveaux de vitesse: D'une part, le disque 8 et les éléments qui tournent avec lui et, d'autre part, le disque 10 et les éléments qui tournent avec lui. Il peut arriver qu'il y ait un glissement en­tre les vitesses opposées de ces deux disques, mais il est sans influence sur le fonctionnement. Les wagonnets se trouvent toujours à l'emplacement voulu par rapport à la trajectoire des fils 17. Cela provient de ce que la came 21 est portée par le disque 8.The general construction of the machine comprises only two speed levels: On the one hand, the disk 8 and the elements which rotate with it and, on the other hand, the disk 10 and the elements which rotate with it. It may happen that there is a slip between the opposite speeds of these two discs, but it has no influence on the operation. The wagons are always at the desired location relative to the path of the wires 17. This is due to the fact that the cam 21 is carried by the disc 8.

Il serait possible d'améliorer encore la qualité du guidage des fils 17 en orientant les axes des galets 33, 33′ et 34 légèrement en oblique afin d'éliminer encore le risque de frottement dû au dépla­cement longitudinal du fil pendant son passage entre les galets.It would be possible to further improve the quality of the guiding of the wires 17 by orienting the axes of the rollers 33, 33 ′ and 34 slightly obliquely in order to further eliminate the risk of friction due to the longitudinal displacement of the wire during its passage between the rollers .

Claims (11)

1. Tresseuse comprenant un organe de forma­tion d'une tresse définissant un axe central, un pre­mier et un second organe rotatifs entraînés en rotation en sens inverse l'un de l'autre autour dudit axe, un jeu de porte-fil de chaîne montés sur le premier organe de manière à tourner solidairement avec lui, et un jeu de porte-fil de trame tournant avec le second organe rotatif, caractérisée en ce que les porte-fil de trame sont montés sur le premier organe rotatif indépendam­ment les uns des autres et comportent chacun au moins un moyen d'entraînement, en ce que le second organe ro­tatif comporte des moyens de propulsion qui coopèrent chacun avec des moyens d'entraînement d'au moins un porte-fil de trame pour déplacer ce dernier sur le pre­mier organe en synchronisme avec le second organe rota­tif, et en ce que lesdits moyens de propulsion et d'en­traînement sont agencés de manière à assurer d'une part la propulsion continue des porte-fil de trame et d'au­tre part des croisements de fils de chaîne avec des fils de trame sans frottement de parties solides.1. Braider comprising a member for forming a braid defining a central axis, first and second rotary members driven in rotation in opposite directions to each other around said axis, a set of chain thread holders mounted on the first member so as to rotate integrally with it, and a set of weft thread holders rotating with the second rotary member, characterized in that the weft thread holders are mounted on the first rotary member independently of each other and each comprise at least one drive means, in that the second rotary member comprises propulsion means which each cooperate with drive means of at least one weft thread holder to move the latter on the first member in synchronism with the second rotary member, and in that said propulsion and drive means are arranged so as to ensure on the one hand the continuous propulsion of the weft yarn carriers and on the other hand rt crosses of warp threads with weft threads without friction of solid parts. 2. Tresseuse selon la revendication 1, ca­ractérisée en ce que le second organe rotatif porte un élément de guidage en forme de came coopérant avec des palpeurs associés à des organes de guidage des fils de chaîne, associés eux-mêmes aux porte-fil de chaîne, sur le premier organe.2. braider according to claim 1, characterized in that the second rotary member carries a cam-shaped guide element cooperating with feelers associated with members for guiding the warp threads, themselves associated with the warp thread holders , on the first organ. 3. Tresseuse selon la revendication 1, ca­ractérisée en ce que chaque moyen de propulsion compor­te un ou plusieurs galets de propulsion pivotant sur le second organe rotatif et entraîné en rotation, et en ce que chaque moyen d'entraînement comporte un galet d'en­ traînement pivotant sur un porte-fil de trame, chaque galet d'entraînement étant en contact de roulement avec un galet de propulsion.3. braider according to claim 1, characterized in that each propulsion means comprises one or more propulsion rollers pivoting on the second rotary member and driven in rotation, and in that each drive means comprises a roller pivoting drag on a weft thread holder, each drive roller being in rolling contact with a propulsion roller. 4. Tresseuse selon la revendication 3, ca­ractérisée en ce que l'entraînement en rotation des ga­lets de propulsion est réalisé par roulement sur le premier organe rotatif.4. Braider according to claim 3, characterized in that the drive in rotation of the propulsion rollers is carried out by rolling on the first rotary member. 5. Tresseuse selon la revendication 3, ca­ractérisée en ce que les galets des moyens de propul­sion et d'entraînement sont munis de bandages élastiques.5. braider according to claim 3, characterized in that the rollers of the propulsion and drive means are provided with elastic bandages. 6. Tresseuse selon la revendication 3, ca­ractérisée en ce que les galets des moyens de propul­sion et d'entraînement sont munis chacun d'une suspen­sion élastique.6. braider according to claim 3, characterized in that the rollers of the propulsion and drive means are each provided with an elastic suspension. 7. Tresseuse selon la revendication 6, ca­ractérisée en ce que les suspensions élastiques sont munies d'amortisseurs.7. Braider according to claim 6, characterized in that the elastic suspensions are provided with shock absorbers. 8. Tresseuse selon la revendication 3, ca­ractérisée en ce que l'entraînement en rotation des ga­lets de propulsion est réalisé par des moyens moteurs positifs.8. Braider according to claim 3, characterized in that the drive in rotation of the propulsion rollers is carried out by positive motor means. 9. Tresseuse selon la revendication 1, ca­ractérisée en ce que chaque moyen de propulsion compor­te un dispositif de projection d'un flux de gaz et cha­que moyen d'entraînement comporte un organe fonction­nant en butée et recevant un flux de gaz projeté par un dispositif de projection.9. braider according to claim 1, characterized in that each propulsion means comprises a device for projecting a flow of gas and each drive means comprises a member operating in abutment and receiving a flow of gas projected by a device for projection. 10. Tresseuse selon la revendication 1, ca­ractérisée en ce que le premier organe rotatif comporte un ensemble de segments de rails définissant un chemin circulaire, coaxial auxdits organes rotatifs, et les porte-fil de trame sont montés sur ledit rail de maniè­re à n'être mobiles par rapport à ce dernier que le long dudit chemin circulaire.10. braider according to claim 1, characterized in that the first rotary member comprises a set of rail segments defining a circular path, coaxial with said rotary members, and the weft thread holders are mounted on said rail so as to n ' be movable relative to the latter only along said circular path. 11. Tresseuse selon la revendication 10, ca­ractérisée en ce que les porte-fil de trame sont des wagonnets allongés guidés sur le rail par des galets ou des glissières, et les moyens d'entraînement comportent aux deux extrémités de chaque wagonnet un organe d'en­traînement qui coopère avec des moyens de propulsion, de manière à impartir au wagonnet des efforts de pous­sée ou de freinage permettant son accélération ou sa décélération.11. braider according to claim 10, characterized in that the weft yarn carriers are elongated wagons guided on the rail by rollers or slides, and the drive means comprise at the two ends of each wagon a member of drive which cooperates with propulsion means, so as to impart to the wagon pushing or braking forces allowing its acceleration or deceleration.
EP89810895A 1988-11-23 1989-11-22 Braiding machine Withdrawn EP0370959A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH4347/88 1988-11-23
CH434788 1988-11-23

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000017434A1 (en) * 1998-09-24 2000-03-30 Ls-Medcap Gmbh Device for producing a stent
WO2001055493A1 (en) * 2000-01-27 2001-08-02 Wolfgang Emmerich Device for controlling the thread lever of a braider and a braider
CN103835065A (en) * 2014-03-07 2014-06-04 江苏神韵绳缆有限公司 Vehicle-type cross-rope cable machine
CN112725997A (en) * 2021-01-25 2021-04-30 福建省新宏港纺织科技有限公司 Weft-knitted cotton-flax fabric and production process thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH88533A (en) * 1919-05-17 1921-03-16 Company Boston Machinery Braiding machine.
US4130046A (en) * 1978-02-15 1978-12-19 Vincent Sokol Braiding machine with continuous tension filament control
US4729278A (en) * 1987-05-04 1988-03-08 Rockwell International Corporation Vertical rotary braider

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH88533A (en) * 1919-05-17 1921-03-16 Company Boston Machinery Braiding machine.
US4130046A (en) * 1978-02-15 1978-12-19 Vincent Sokol Braiding machine with continuous tension filament control
US4729278A (en) * 1987-05-04 1988-03-08 Rockwell International Corporation Vertical rotary braider

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000017434A1 (en) * 1998-09-24 2000-03-30 Ls-Medcap Gmbh Device for producing a stent
WO2001055493A1 (en) * 2000-01-27 2001-08-02 Wolfgang Emmerich Device for controlling the thread lever of a braider and a braider
CN103835065A (en) * 2014-03-07 2014-06-04 江苏神韵绳缆有限公司 Vehicle-type cross-rope cable machine
CN103835065B (en) * 2014-03-07 2016-01-20 江苏神韵绳缆有限公司 A kind of car formula compiles twisted rope cable machine
CN112725997A (en) * 2021-01-25 2021-04-30 福建省新宏港纺织科技有限公司 Weft-knitted cotton-flax fabric and production process thereof
CN112725997B (en) * 2021-01-25 2022-04-15 福建省新宏港纺织科技有限公司 Weft-knitted cotton-flax fabric and production process thereof

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