EP0211387B2 - Apparatus and method for assembling yarns, assembling yarns obtained by means of this apparatus and this method - Google Patents

Apparatus and method for assembling yarns, assembling yarns obtained by means of this apparatus and this method Download PDF

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Publication number
EP0211387B2
EP0211387B2 EP86110499A EP86110499A EP0211387B2 EP 0211387 B2 EP0211387 B2 EP 0211387B2 EP 86110499 A EP86110499 A EP 86110499A EP 86110499 A EP86110499 A EP 86110499A EP 0211387 B2 EP0211387 B2 EP 0211387B2
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EP
European Patent Office
Prior art keywords
rotation
wall
thread
guide
threads
Prior art date
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EP86110499A
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German (de)
French (fr)
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EP0211387B1 (en
EP0211387A1 (en
Inventor
Fernand Chateau
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Compagnie Generale des Etablissements Michelin SCA
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Compagnie Generale des Etablissements Michelin SCA
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Priority to AT86110499T priority Critical patent/ATE45399T1/en
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/10—Spinning or twisting machines in which the product is wound-up continuously for imparting multiple twist, e.g. two-for-one twisting
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/26—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre with characteristics dependent on the amount or direction of twist
    • D02G3/28—Doubled, plied, or cabled threads
    • D02G3/285—Doubled, plied, or cabled threads one yarn running over the feeding spool of another yarn
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2207/00—Rope or cable making machines
    • D07B2207/40—Machine components
    • D07B2207/4004—Unwinding devices
    • D07B2207/4009—Unwinding devices over the head

Definitions

  • the invention relates to devices for assembling threads, in particular textile threads.
  • a thread should be taken in a very general sense.
  • a thread may be a "single thread” constituted for example by one or more filaments.
  • the single thread is made up of a single filament it is called “monofilament” and when the simple thread is made up of several filaments it is called “multifilament”.
  • a wire can itself be a set of single wires.
  • Such an assembly is called “twists” when it is constituted by several simple wires joined together by a single twisting operation, and such an assembly is called “wired” when it is constituted by several wires, at least one of which is a twisted , joined by one or more twisting operations.
  • the invention relates in particular to devices which make it possible to assemble at least two wires by first giving a twist to each of the wires, separately, in the same direction, then by twisting these wires together in opposite directions to obtain an assembly. .
  • Known devices of this type generally use rotating disks as described for example in FR-A-2 263 315 and lead to the following drawbacks: high thread tension; high inertia of the devices.
  • the object of the invention is to remedy these drawbacks.
  • the invention also relates to a method for assembling at least two wires.
  • FIG. 1 shows a device 100 according to the invention.
  • This device 100 comprises two coils 1, 2. On the coil 1 is wound the wire 10 and on the coil 2 is wound the wire 20. Each of these wires 10, 20 is constituted for example by an untwisted multifilament.
  • the device 100 comprises a drum 3 and a motor 4 capable of driving the drum 3 in rotation about the axis xx ′ which is for example vertical, FIG. 1 being a section made along this axis.
  • the drum 3 has two ends: the upper end 5 and the lower end 6.
  • first coil coil 1; “First wire”: wire 10; “Second coil”: coil 2; “Second wire”: wire 20; “Wall”: drum 3.
  • the coil 1 is placed outside the drum 3 and the coil 2 is placed inside the drum 3.
  • the coil 2 is arranged inside a pot 7 provided with a cover 8, this pot 7 being itself disposed inside the drum 3 while being devoid of contact with the internal face 9 of the drum 3 , that is to say that the coil 2 has no contact with this face 9.
  • the coil 2 is disposed on the bottom 11 of the pot 7.
  • This coil 2 comprises a mandrel 12, around which the wire 20 is wound, and inside the mandrel 12 is a hollow cylinder 13 which is part of a regulating system 14 for the wire 20, this regulating system 14 being described in more detail later.
  • the drum 3 is connected at its lower end 6 to a plate 15, the assembly of the drum 3 and the plate 15 forming an enclosure 16 in the shape of a bell whose plate 15 constitutes the bottom, the pot 7, with the coil 2 and the system 14 being located inside this bell 16.
  • This bell 16 rotates around the axis xx ′.
  • the device 100 comprises means either for immobilizing the coil 2 during the rotation of the drum 3, or for giving this coil a rotation independent of that of the drum 3. These means are as follows.
  • the bottom 11 of the pot 7 is integral with a cylindrical bearing 17, of axis xx ′, this bearing being of the ball bearing type. This bearing 17 can rotate around a cylindrical piece 18 secured to the plate 15.
  • This piece 18 is also secured to the hollow spindle 19 which is itself secured to the drive cylinder 21 of the motor 4.
  • a magnet 22 On the pot 7 is fixed a magnet 22.
  • this magnet 22 In front of this magnet 22 is arranged another magnet 23, the drum 3 being disposed between these two magnets 22, 23 which have no contact with the drum 3.
  • the assembly 24, comprising the bell 16, the part 18, the spindle 19 and the cylinder 21, is driven in a rotating part by the motor 4, around the axis xx ′, and therefore constitutes a rotating assembly.
  • the assembly 25, comprising the pot 7 with its cover 8, the bearing 17, the coil 2, the mandrel 12, the regulator system 14, the magnet 22, is stationary relative to the axis xx ′, during rotation of the rotating assembly 24, if the outer magnet 23 is fixed, or rotates around the axis xx ′, independently of the rotation of the rotating assembly 24, if the outer magnet 23 is rotated around the axis xx ′, this thanks to the presence of the bearing 17.
  • the drum 3 and the pot 7 are made with materials permeable to the magnetic field, to allow attraction between the magnets 22, 23, these materials being for example plastics .
  • the operation of the device 100 is as follows.
  • the wire 10 coming from the reel 1 is braked by a regulating system 26 which allows the tension adjustment of the wire 10, this system 26 being constituted for example by two rollers 27, 28.
  • the wire 10 then passes through a fixed guide 29 called "Upstream guide” disposed above the drum 3, this guide 29 being a circular eyelet of axis xx ′.
  • This guide 29 allows the wire 10 to enter the drum 3 through the upper end 5 of the drum 3.
  • the wire 10 passes through the drum 3, outside the pot 7 and exits through the guide 30 secured to the bell 16, this guide 30 being for example an eyelet disposed in the plate 15.
  • the eyelet 30 is disposed in the vicinity of the lower end 6 of the drum 3.
  • the wire 10 thus passes through the drum 3 from the upper end 5 to the lower end 6 in the direction of the arrow F10.
  • the wire 10 then passes over a movable guide 31 called “downstream guide” disposed outside the bell 16 and under this bell, in the vicinity of the axis xx ′, this downstream guide 31 rotating in the same direction and at the same angular speed. that the drum 3.
  • This downstream guide 31 is constituted by a roller 32 whose axis 33 is integral with the hollow spindle 19 which supports the plate 15.
  • the wire 10 driven by centrifugal force, is pressed against the internal face 9 of the drum 3 by turning integrally with the drum 3 around the pot 7 and therefore of the coil 2, without there being contact between the wire 10 on the one hand and the pot 7 and the coil 2 on the other hand.
  • the wire 10 is therefore twisted in the same direction as the rotation of the drum 3 between the upstream guide 29 and the downstream guide 31, the wire 10 thus becoming the twisted multifilament 10T.
  • the wire 20 delivered by the coil 2 passes through the regulating system 14.
  • This system 14 comprises the cylinder 13 in which the cups 34 are arranged.
  • the wire 20 enters the cylinder 13, through the upper end 35 of this cylinder, and it then passes successively through the cups 34 whose axes are integral with the cylinder 13.
  • These cups 34 are each constituted, in a known manner, by two discs with springs which apply the discs to the wire 20 disposed between them, so as to be able to apply an adjustable braking force to this wire 20, and therefore adjust the tension of the wire 20.
  • the wire 20 then passes through the guide 36, called the "upstream guide", constituted by an eyelet disposed in the bottom 11 of the pot 7, the axis of this eyelet 36 being the axis xx ′.
  • the wire 20 then leaves the drum 3 and passes over the movable guide 37, called the “downstream guide”, placed outside the bell 16 and under this bell in the vicinity of the axis xx ′.
  • the progression of the wire 20 is shown diagrammatically by the arrow F20.
  • This downstream guide 37 rotates in the same direction and at the same angular speed as the drum 3.
  • the wire 20 is twisted in the direction of rotation of the drum 3 to give the twisted multifilament 20T.
  • the downstream guide 37 of the wire 20 consists of a roller 38 whose axis 39 is integral with the hollow spindle 19.
  • the axes 33, 39 of the rollers 32, 38 are parallel between them and located in the same horizontal plane P, on either side of the axis xx ′, at the same distance from this axis.
  • These rollers 32, 38 are located inside the spindle 19.
  • the direction of movement, along the axis xx ′, of each wire 10, 20 to go from the upstream guide 29, 36 to the downstream guide 31, 37 corresponding to this wire is by definition the direction in which it is necessary to move, along the axis xx ′ to go from a plane passing through the upstream guide 29, 36 to a plane passing through the downstream guide 31, 37 corresponding to this wire, these planes being perpendicular to the axis xx ′.
  • the plane P29 is such a plane passing through the upstream guide 29 of the wire 10
  • the plane P36 is such a plane passing through the upstream guide 36 of the wire 20
  • the plane P is such a plane passing through the downstream guides 31, 37 , these planes P29, P36, P being represented by line segments in FIG. 1.
  • the planes P29, P36 are located above the plane P, and therefore the direction of movement along the axis xx ′ to go from the upstream guide 29, 36 to the downstream guide 31, 37 is the same for the wire 10 and for the wire 20 since it is oriented from top to bottom, according to arrow F.
  • the downstream guides 31, 37 are interconnected by the wires 10, 20, all of these guides 31, 37 giving a regulating system 40 which is shown in more detail in FIG. 2.
  • the direction of progression of each wire 10, 20 is represented by the arrow F10, F20 as in FIG. 1.
  • the wire 10 passes over the roller 32 of the downstream guide 31, then then over the roller 38 of the downstream guide 37, to exit the system 40 from of the roller 38.
  • the wire 20 passes over the roller 38 of the downstream guide 37, then then over the roller 32 of the downstream guide 31 to exit the system 40 from the roller 32.
  • rollers 32, 38 are driven in rotation around their axes 33, 39 by the wires 10, 20 which therefore pass in the same direction on each of these rollers, all of these rollers 32, 38 further rotating around the axis xx ′ with the same speed angular as the rotating assembly 24 as previously described since their axes 33, 39 are integral with the spindle 19 and therefore driven in rotation about the axis xx ′ by this pin.
  • the rotation of the roller 32, shown diagrammatically by the arrow F32 is in the opposite direction to the rotation of the roller 38, shown diagrammatically by the arrow F38, the wires 10, 20 therefore having directions of progression F10, F20 crossed between these rollers 32, 38 without that these wires touch between these rollers and on these rollers.
  • the rollers 32, 38 have identical shapes and dimensions, and the ratio d / r is preferably between 1.2 and 4, “d” being the distance which separates each axis 33, 39 from the axis xx ′, and “r” being the outside radius of the rollers 32, 38 (FIG. 2).
  • the twisted multifilaments 10T, 20T emerging from the rollers 38, 32 are then brought together at point A, on the axis xx ′ and they are passed over the roller 42 whose axis 43 is fixed (FIG. 1).
  • These two wires 10T, 20T are therefore twisted together between point A and the roller 42, given the integral rotation of the rollers 32, 38 around the axis xx ′, this twist, called “twist of twists”, having a direction opposite to the rotation of the drum 3.
  • the assembly 44 thus obtained is a twist which passes over the capstan 45 and which is wound on the spool 46, the capstan 45 making it possible to adjust the linear speed of the plies 44 and consequently the linear speed of the wires 10, 20 before their assembly. .
  • the invention allows the following advantages to be obtained compared to known devices with a rotating disc: the tensions of the wires 10, 20 are reduced during their passage through the device 100, before their assembly, this in particular because the wire 10 is pressed against the internal face 9 of the drum 3 during its rotation, instead of rotating freely in the air around coil 2; the regulator system 40 making it possible to adjust the flow rate of the twisted multifilaments 10T, 20T is integral with the spindle 19 and therefore with the rotating assembly 24 of the device 100 and it is rotated by the motor 4.
  • the inertia of this system 40 when the device 100 is started or stopped, it is therefore not collected by the twisted multifilaments 10T, 20T.
  • the voltages of these wires 10T, 20T are therefore reduced on bare start when stopped and the device 100 allows rapid acceleration and deceleration.
  • the fact that the point A of assembly of the twisted multifilaments 10T, 20T is free on the axis xx ′ makes it possible to avoid the use of a guide, for example an eyelet, which eliminates the risks of abrasion at this point.
  • FIG. 2 shows the angles ⁇ corresponding to the twisted multifilaments 10T and 20T.
  • the device 100 is used to make two plies 44, one of which is a ply of aromatic polyamide and the other a ply of rayon, each of these two plies being obtained with two threads 10, 20 which are multifilaments.
  • the characteristics of the multifilaments 10, 20 and of the plies 44 obtained are given in the following table:
  • twists are expressed in number of turns per meter and the letter Z or S which precedes the value of the twist is commonly indicated in the textile industry and means that the twist is carried out in the Z direction (for the letter Z) or in the S direction (for the letter S), the Z direction and the S direction being opposite.
  • the breaking force is expressed in Newtons.
  • the elongation is determined with a force of 250 Newtons for the plied aromatic polyamide and with a force of 50 Newtons for the plied rayon. This elongation is expressed in%.
  • the improvements due to the invention are as follows, starting from the same multifilaments and obtaining the same twists: Twisted aromatic polyamide, The breaking force is increased by 11%, The elongation is reduced by 8%, Twisted rayon The breaking force is increased by 13% The elongation is reduced by 7%.
  • the device 100 according to the invention makes it possible to increase the breaking force and to decrease the elongation, which translates into an increase in the module, and this in a notable manner.
  • the regulator system 14 of the wire 20 is in the form of a cylinder 13 placed inside the drum 3, it is therefore very easy to remove the coil 2, to replace it with another, during the operation of the device 100, and this without having to remove the system 14 which therefore remains permanently, trimmed with wire 20.
  • the device 100 has been described as making it possible to preferably produce a twist from two multifilaments, but this device 100 could be used to make assemblies with threads other than multifilaments, for example starting from at least one thread constituted by a plied to get a cable.
  • the invention is not limited to the embodiments previously described.
  • the regulating system 40 could be rotated about the axis xx ′ by other means than the motor 4, but the use of the motor 4 to rotate both the rotating assembly 24 and the regulator system 40 has the advantage of simplicity.

Abstract

A device for assembling at least two threads comprises two groups of bobbins; a wall and means for driving the wall in rotation around an axis; and means for twisting a first thread in the direction of rotation of the wall, the twisting means permitting the first thread to come into contact with the inner face of the wall and to turn around the axis while turning around the second bobbin.

Description

L'invention concerne les dispositifs permettant d'assembler des fils, notamment des fils textiles.The invention relates to devices for assembling threads, in particular textile threads.

Le terme « fil » doit être pris dans un sens très général. Un fil peut être un « fil simple » constitué par exemple par ou plusieurs filaments. Lorsque le fil simple est constitué par un seul filament il est appelé « monofilament » et lorsque le fil simple est constitué par plusieurs filaments il est appelé « multifilament ».The term "thread" should be taken in a very general sense. A thread may be a "single thread" constituted for example by one or more filaments. When the single thread is made up of a single filament it is called "monofilament" and when the simple thread is made up of several filaments it is called "multifilament".

Un fil peut être d'autre part lui-même un ensemble de fils simples. Un tel ensemble est appelé « retors » lorsqu'il est constitiué par plusieurs fils simples réunis par une seule opération de torsion, et un tel ensemble est appelé « câblé » lorsqu'il est consbtiué par plusieurs fils, dont au moins un est un retors, réunis par une ou plusieurs opérations de torsion.On the other hand, a wire can itself be a set of single wires. Such an assembly is called “twists” when it is constituted by several simple wires joined together by a single twisting operation, and such an assembly is called “wired” when it is constituted by several wires, at least one of which is a twisted , joined by one or more twisting operations.

L'invention concerne en particulier les dispositifs qui permettent d'assembler au moins deux fils en donnant tout d'abord une torsion à chacun des fils, séparément, dans le même sens, puis en tordant ensemble ces fils en sens inverse pour obtenir un assemblage.The invention relates in particular to devices which make it possible to assemble at least two wires by first giving a twist to each of the wires, separately, in the same direction, then by twisting these wires together in opposite directions to obtain an assembly. .

Les dispositifs connus de ce type utilisent en général des disques tournants comme décrit par exemple dans FR-A-2 263 315 et conduisent aux inconvénients suivants:
   tension élevée des fils ;
   inertie élevée des dispositifs.Known devices of this type generally use rotating disks as described for example in FR-A-2 263 315 and lead to the following drawbacks:
high thread tension;
high inertia of the devices.

L'article intitulé "le câblage direct des câblés pour pneumatiques" de Jos. Kinapenne, publié dans la revue "Rayonne, fibranne et fibres synthétiques" n° 4 du 15 avril 1957 décrit un procédé de câblage direct dans lequel un fil est introduit dans une broche puis dans un pot tournant, il reçoit ainsi un mouvement de rotation autour d'une bobine fixe contenant un autre fil. Ces fils passent sur des roulettes de régularisation avant d'atteindre un point de câblage. La rotation des roulettes autour de l'axe de rotation du pot est réalisée par les fils eux-mêmes. Ce procédé conduit aux inconvénients précités.The article entitled "direct wiring of tire cables" by Jos. Kinapenne, published in the review "Rayon, fibranne and synthetic fibers" n ° 4 of April 15, 1957 describes a direct wiring process in which a wire is introduced into a spindle then into a rotating pot, it thus receives a rotational movement around a fixed coil containing another wire. These wires pass on regulation rollers before reaching a wiring point. The wheels are rotated around the axis of rotation of the pot by the wires themselves. This process leads to the aforementioned drawbacks.

Ces inconvénients conduisent à des assemblages qui ont des caractéristiques mécaniques inférieures à celles que l'on peut attendre.These drawbacks lead to assemblies which have mechanical characteristics inferior to those which can be expected.

Le but de l'invention est de remédier à ces inconvénients.The object of the invention is to remedy these drawbacks.

En conséquence, l'invention concerne un dispositif pour assembler au moins deux fils, ce dispositif étant caractérisé par les point suivants:

  • a) il comporte deux groupes de bobines, dits « premier groupe » et « deuxième groupe », le premier groupe étant constitué par une ou plusieurs bobines, dite(s) « première(s) bobine(s) », sur chacune desquelles est enroulé un ou plusieurs fils, dit(s) « premier(s) fil(s) », et le deuxième groupe étant constitué par une ou plusieurs bobines, dite(s) « deuxième(s) bobine(s) » sur chacune desquelles est enroulé un ou plusieurs fils dit(s) « deuxième(s) fil(s) » ;
  • b) le dispositif comporte une paroi et des moyens permettant d'entraîner cette paroi en rotation autour d'un axe ;
  • c) le dispositif comporte des moyens soit pour immobilier la ou les deuxièmes bobines pendant la rotation de la paroi, soit pour donner à cette, ou ces bobines une rotation indépendante de celle de la paroi ;
  • d) le dispositif comporte des moyens permettant de tordre le premier fil ou l'ensemble des premiers fils dans le sens de rotation de la paroi, ces moyens étant constitués au moins en partie par:
       un guide, dit « guide amont » ;
       un guide, dit « guide aval » ;
       la paroi ;
ces moyens étant agencés pour permettre au(x) premier(s) fil(s) de venir au contact de la face interne de la paroi, entre ces guides, et de tourner solidairement avec la paroi autour de l'axe en entourant la ou les deuxièmes bobines sans avoir de contact avec cette ou ces bobines ;
  • e) le dispositif comporte des moyens permettant de tordre le deuxième fil ou l'ensemble des deuxièmes fils, dans le sens de rotation de la paroi, ces moyens étant constitués au moins en partie par un guide dit « guide amont » et par un guide, dit « guide aval » ;
  • f) le sens de déplacement le long de l'axe de rotation, pour aller du guide amont au guide aval est le même pour les guides relatifs au(x) premier(s) fil(s) et pour les guides relatifs au(x) deuxième(s) fil(s) ;
  • g) le dispositif comporte des moyens permettant d'entraîner les guides aval en rotation autour de l'axe de rotation de la paroi, dans le même sens et à la même vitesse angulaire que la paroi ;
  • h) le dispositif comporte des moyens permettant d'assembler le(s) premier(s) fil(s) avec le(s) deuxième(s) fil(s) après le passage de ces fils sur les guides aval, en tordant ces fils ensemble, en sens inverse de la rotation de la paroi.
Consequently, the invention relates to a device for assembling at least two wires, this device being characterized by the following points:
  • a) it comprises two groups of coils, called "first group" and "second group", the first group being constituted by one or more coils, called (s) "first (s) coil (s)", on each of which is wound one or more wires, called "first wire (s)", and the second group being constituted by one or more coils, called (s) "second (s) coil (s)" on each of which is wound one or more son said (s) "second (s) wire (s)";
  • b) the device comprises a wall and means making it possible to drive this wall in rotation about an axis;
  • c) the device comprises means either for real estate the second coil or coils during the rotation of the wall, or to give this or these coils a rotation independent of that of the wall;
  • d) the device comprises means making it possible to twist the first wire or all of the first wires in the direction of rotation of the wall, these means being constituted at least in part by:
    a guide, called “upstream guide”;
    a guide, called “downstream guide”;
    Wall ;
these means being arranged to allow the first wire (s) to come into contact with the internal face of the wall, between these guides, and to rotate integrally with the wall around the axis, surrounding the or the second coils without having contact with this or these coils;
  • e) the device comprises means making it possible to twist the second wire or all of the second wires in the direction of rotation of the wall, these means being constituted at least in part by a guide known as an "upstream guide" and by a guide , called "downstream guide";
  • f) the direction of movement along the axis of rotation, from the upstream guide to the downstream guide is the same for the guides relating to the first wire (s) and for the guides relating to (x ) second wire (s);
  • g) the device comprises means making it possible to drive the downstream guides in rotation about the axis of rotation of the wall, in the same direction and at the same angular speed as the wall;
  • h) the device comprises means making it possible to assemble the first wire (s) with the second wire (s) after the passage of these wires over the downstream guides, by twisting these wires together, opposite to the rotation of the wall.

L'invention concerne également un procédé pour assembler au moins deux fils.The invention also relates to a method for assembling at least two wires.

Ce procédé comporte les points suivants :

  • a) on utilise au moins deux groupes de bobines, dits "premier groupe" et "deuxième groupe", le premier groupe étant constitué par une ou plusieurs bobines dite(s) "premiere(s) bobine(s)", sur chacune desquelles est enroulé un ou plusieurs fils, dit(s) "premier(s) fil(s)", et le deuxième groupe étant constitué par une ou plusieurs bobines, dite(s) "deuxième(s) bobine(s)", sur chacune desquelles est enroulé un ou plusieurs fils, dit(s) "deuxième(s) fil(s) ;
  • b) on utilise une paroi que l'on peut entraîner en rotation autour d'un axe ;
  • c) on immobilise la ou les deuxièmes bobines pendant la rotation de la paroi ou on donne à cette ou ces bobines une rotation indépendante de celle de la paroi ;
  • d) on tord le premier fil ou l'ensemble des premiers fils dans le sens de rotation de la paroi, entre un guide, dit "guide amont", et un guide, dit "guide aval", de telle sorte que le/ou les premiers fils viennent au contact de la face interne de la paroi entre ces guides, et tournent solidairement avec la paroi autour de l'axe en entourant la ou les deuxièmes bobines sans avoir de contact avec cette ou ces bobines ;
  • e) on tord la deuxième fil ou l'ensemble des deuxièmes fils dans le sens de rotation de la paroi entre un guide, dit "guide amont", et un guide dit "guide aval" ;
  • f) le sens de déplacement le long de l'axe de rotation, lors de ces torsions, est le même pour le(s) premier(s) fil(s) et pour le(s) deuxième(s) fil(s) ;
  • g) on entraîne les guides aval en rotation autour de l'axe de rotation de la paroi dans le même sens et à la même vitesse angulaire que la paroi avec des moyens qui sont autres que les fils ;
  • h) on assemble le(s) premier(s) fil(s) avec le(s) deuxième(s) fil(s) après le passage de ces fils sur les guides aval en tordant ces fils ensemble, en sens inverse de la rotation de la paroi.
This process includes the following points:
  • a) at least two groups of coils, called "first group" and "second group", are used, the first group being constituted by one or more coils called "first (s) coil (s)", on each of which is wound one or more wires, called "first wire (s)", and the second group being constituted by one or more coils, called (s) "second (s) coil (s)", on each of which is wound one or more wires, called "second wire (s);
  • b) using a wall which can be rotated about an axis;
  • c) immobilizing the second coil (s) during the rotation of the wall or giving this or these coil (s) a rotation independent of that of the wall;
  • d) the first wire or all of the first wires are twisted in the direction of rotation of the wall, between a guide, called "upstream guide", and a guide, called "downstream guide", so that the / or the first wires come into contact with the internal face of the wall between these guides, and rotate integrally with the wall around the axis, surrounding the second coil or coils without having contact with this or these coils;
  • e) the second wire or all of the second wires are twisted in the direction of rotation of the wall between a guide, called "upstream guide", and a guide called "downstream guide";
  • f) the direction of movement along the axis of rotation, during these twists, is the same for the first wire (s) and for the second wire (s) ;
  • g) the downstream guides are driven in rotation about the axis of rotation of the wall in the same direction and at the same angular speed as the wall with means which are other than the wires;
  • h) assembling the first wire (s) with the second wire (s) after the passage of these wires over the downstream guides by twisting these wires together, in the opposite direction to the wall rotation.

Les exemples de réalisation qui suivent ainsi que les figures toutes schématiques du dessin correspondant à ces exemples sont destinés à illustrer l'invention et à en faciliter la compréhension sans toutefois en limiter la portée.The following embodiments as well as the diagrammatic figures of the drawing corresponding to these examples are intended to illustrate the invention and to facilitate understanding without however limiting its scope.

Sur le dessin :

  • la figure 1 représente en coupe un dispositif conforme à l'invention ;
  • la figure 2 représente plus en détail, en coupe, les guides aval du dispositif représenté à la figure 1.
On the drawing :
  • Figure 1 shows in section a device according to the invention;
  • FIG. 2 represents in more detail, in section, the downstream guides of the device represented in FIG. 1.

On voit à la figure 1 un dispositif 100 conforme à l'invention. Ce dispositif 100 comporte deux bobines 1, 2. Sur la bobine 1 est enroulé le fil 10 et sur la bobine 2 est enroulé le fil 20. Chacun de ces fils 10, 20 est constitué par exemple par un multifilament non tordu. Le dispositif 100 comporte un tambour 3 et un moteur 4 susceptible d'entraîner en rotation le tambour 3 autour de l'axe xx′ qui est par exemple vertical, la figure 1 étant une coupe effectuée le long de cet axe. Le tambour 3 comporte deux extrémités: l'extrémité supéreure 5 et l'extrémité inféreure 6.FIG. 1 shows a device 100 according to the invention. This device 100 comprises two coils 1, 2. On the coil 1 is wound the wire 10 and on the coil 2 is wound the wire 20. Each of these wires 10, 20 is constituted for example by an untwisted multifilament. The device 100 comprises a drum 3 and a motor 4 capable of driving the drum 3 in rotation about the axis xx ′ which is for example vertical, FIG. 1 being a section made along this axis. The drum 3 has two ends: the upper end 5 and the lower end 6.

Dans le dispositif 100, la correspondance est la suivante avec des définitions données précédemment pour le dispotif et le procédé conformes à l'invention : « première bobine » : bobine 1 ; « premier fil » : fil 10 ; « deuxième bobine » : bobine 2 ; « deuxième fil » : fil 20 ; « paroi » : tambour 3.In the device 100, the correspondence is as follows with definitions given previously for the device and the method according to the invention: “first coil”: coil 1; "First wire": wire 10; "Second coil": coil 2; "Second wire": wire 20; "Wall": drum 3.

La bobine 1 est disposée à l'extérieur du tambour 3 et la bobine 2 est disposée à l'intérieur du tambour 3.The coil 1 is placed outside the drum 3 and the coil 2 is placed inside the drum 3.

La bobine 2 est disposée à l'intérieur d'un pot 7 muni d'un couvercle 8, ce pot 7 étant lui-même disposé à l'intérieur du tambour 3 tout en étant dépourvu de contact avec la face interne 9 du tambour 3, c'est-à-dire que la bobine 2 est dépourvue de contact avec cette face 9. La bobine 2 est disposée sur le fond 11 du pot 7. Cette bobine 2 comporte un mandrin 12, autour duquel est enroulé le fil 20, et à l'intérieur du mandrin 12 se trouve un cylindre creux 13 qui fait partie d'un système régulateur 14 pour le fil 20, ce système régulateur 14 étant décrit plus en détail ultérieurement.The coil 2 is arranged inside a pot 7 provided with a cover 8, this pot 7 being itself disposed inside the drum 3 while being devoid of contact with the internal face 9 of the drum 3 , that is to say that the coil 2 has no contact with this face 9. The coil 2 is disposed on the bottom 11 of the pot 7. This coil 2 comprises a mandrel 12, around which the wire 20 is wound, and inside the mandrel 12 is a hollow cylinder 13 which is part of a regulating system 14 for the wire 20, this regulating system 14 being described in more detail later.

Le tambour 3 est relié à son extrémité inférieure 6 à une plaque 15, l'ensemble du tambour 3 et de la plaque 15 formant une enceinte 16 en forme de cloche dont la plaque 15 constitue le fond, le pot 7, avec la bobine 2 et le système 14 étant situé à l'intérieur de cette cloche 16. Cette cloche 16 tourne autour de l'axe xx′. Le dispositif 100 comporte des moyens soit pour immobiliser la bobine 2 pendant la rotation du tambour 3, soit pour donner à cette bobine une rotation indépendante de celle du tambour 3. Ces moyens sont les suivants. Le fond 11 du pot 7 est solidaire d'un palier 17 cylindrique, d'axe xx′, ce palier étant du type à roulement à billes. Ce palier 17 peut tourner autour d'une pièce cylindrique 18 solidaire de la plaque 15. Cette pièce 18 est aussi solidaire de la broche creuse 19 qui est elle-même solidaire du cylindre d'entrainement 21 du moteur 4. Sur le pot 7 est fixé un aimant 22. En face de cet aimant 22 est disposé un autre aimant 23, le tambour 3 étant disposé entre ces deux aimants 22, 23 qui sont dépourvus de contact avec le tambour 3. L'ensemble 24, comportant la cloche 16, la pièce 18, la broche 19 et le cyclindre 21, est entraîné d'une pièce en rotation par le moteur 4, autour de l'axe xx′, et constitue donc un ensemble tournant. L'ensemble 25, comportant le pot 7 avec son couvercle 8, le palier 17, la bobine 2, le mandrin 12, le système régulateur 14, l'aimant 22, est immobile par rapport à l'axe xx′, pendant la rotation de l'ensemble tournant 24, si l'aimant extérieur 23 est fixe, ou tourne autour de l'axe xx′, indépendamment de la rotation de l'ensemble tournant 24, si on fait tourner l'aimant extérieur 23 autour de l'axe xx′, ceci grâce à la présence du palier 17. Le tambour 3 et le pot 7 sont réalisés avec des matières perméables au champ magnétique, pour permettre l'attraction entre les aimants 22, 23, ces matières étant par exemple des matières plastiques.The drum 3 is connected at its lower end 6 to a plate 15, the assembly of the drum 3 and the plate 15 forming an enclosure 16 in the shape of a bell whose plate 15 constitutes the bottom, the pot 7, with the coil 2 and the system 14 being located inside this bell 16. This bell 16 rotates around the axis xx ′. The device 100 comprises means either for immobilizing the coil 2 during the rotation of the drum 3, or for giving this coil a rotation independent of that of the drum 3. These means are as follows. The bottom 11 of the pot 7 is integral with a cylindrical bearing 17, of axis xx ′, this bearing being of the ball bearing type. This bearing 17 can rotate around a cylindrical piece 18 secured to the plate 15. This piece 18 is also secured to the hollow spindle 19 which is itself secured to the drive cylinder 21 of the motor 4. On the pot 7 is fixed a magnet 22. In front of this magnet 22 is arranged another magnet 23, the drum 3 being disposed between these two magnets 22, 23 which have no contact with the drum 3. The assembly 24, comprising the bell 16, the part 18, the spindle 19 and the cylinder 21, is driven in a rotating part by the motor 4, around the axis xx ′, and therefore constitutes a rotating assembly. The assembly 25, comprising the pot 7 with its cover 8, the bearing 17, the coil 2, the mandrel 12, the regulator system 14, the magnet 22, is stationary relative to the axis xx ′, during rotation of the rotating assembly 24, if the outer magnet 23 is fixed, or rotates around the axis xx ′, independently of the rotation of the rotating assembly 24, if the outer magnet 23 is rotated around the axis xx ′, this thanks to the presence of the bearing 17. The drum 3 and the pot 7 are made with materials permeable to the magnetic field, to allow attraction between the magnets 22, 23, these materials being for example plastics .

Le fonctionnement du dispositif 100 est le suivant.The operation of the device 100 is as follows.

Le fil 10 provenant de la bobine 1 est freiné par un système régulateur 26 qui permet le réglage en tension du fil 10, ce système 26 étant constitué par exemple par deux galets 27, 28. Le fil 10 passe ensuite dans un guide fixe 29 dit « guide amont » disposé au-dessus du tambour 3, ce guide 29 étant un oeillet circulaire d'axe xx′. Ce guide 29 permet au fil 10 de pénétrer dans le tambour 3 par l'extrémité supérieure 5 du tambour 3. Le fil 10 traverse le tambour 3, à l'extérieur du pot 7 et ressort par le guide 30 solidaire de la cloche 16, ce guide 30 étant par exemple un oeillet disposé dans la plaque 15. L'oeillet 30 est disposé au voisinage de l'extrémité inférieure 6 du tambour 3.The wire 10 coming from the reel 1 is braked by a regulating system 26 which allows the tension adjustment of the wire 10, this system 26 being constituted for example by two rollers 27, 28. The wire 10 then passes through a fixed guide 29 called "Upstream guide" disposed above the drum 3, this guide 29 being a circular eyelet of axis xx ′. This guide 29 allows the wire 10 to enter the drum 3 through the upper end 5 of the drum 3. The wire 10 passes through the drum 3, outside the pot 7 and exits through the guide 30 secured to the bell 16, this guide 30 being for example an eyelet disposed in the plate 15. The eyelet 30 is disposed in the vicinity of the lower end 6 of the drum 3.

Le fil 10 traverse ainsi le tambour 3 de l'extrémité supérieure 5 vers l'extrémité inférieure 6 dans le sens de la flèche F10. Le fil 10 passe ensuite sur un guide mobile 31 dit « guide aval » disposé hors de la cloche 16 et sous cette cloche, au voisinage de l'axe xx′, ce guide aval 31 tournant dans le même sens et à la même vitesse angulaire que le tambour 3. Ce guide aval 31 est constitué par un galet 32 dont l'axe 33 est solidaire de la broche creuse 19 qui supporte la plaque 15.The wire 10 thus passes through the drum 3 from the upper end 5 to the lower end 6 in the direction of the arrow F10. The wire 10 then passes over a movable guide 31 called “downstream guide” disposed outside the bell 16 and under this bell, in the vicinity of the axis xx ′, this downstream guide 31 rotating in the same direction and at the same angular speed. that the drum 3. This downstream guide 31 is constituted by a roller 32 whose axis 33 is integral with the hollow spindle 19 which supports the plate 15.

Lors de la rotation de l'ensemble tournant 24, et donc lors de la rotation du tambour 3, cette rotation étant schématisée par la flèche R entourant l'axe xx′, le fil 10, entraîné par la force centrifuge, se plaque contre la face interne 9 du tambour 3 en tournant solidairement avec le tambour 3 autour du pot 7 et donc de la bobine 2, sans qu'il y ait de contact entre le fil 10 d'une part et le pot 7 et la bobine 2 d'autre part. Le fil 10 subit ainsi une torsion dans le même sens que la rotation du tambour 3 entre le guide amont 29 et le guide aval 31, le fil 10 devenant ainsi le multifilament tordu 10T.During the rotation of the rotating assembly 24, and therefore during the rotation of the drum 3, this rotation being shown diagrammatically by the arrow R surrounding the axis xx ′, the wire 10, driven by centrifugal force, is pressed against the internal face 9 of the drum 3 by turning integrally with the drum 3 around the pot 7 and therefore of the coil 2, without there being contact between the wire 10 on the one hand and the pot 7 and the coil 2 on the other hand. The wire 10 is therefore twisted in the same direction as the rotation of the drum 3 between the upstream guide 29 and the downstream guide 31, the wire 10 thus becoming the twisted multifilament 10T.

Le fil 20 délivré par la bobine 2 passe dans le système régulateur 14. Ce système 14 comporte le cylindre 13 dans lequel sont disposées des coupelles 34. Le fil 20 pénètre dans le cylindre 13, par l'extrémité supérieure 35 de ce cylindre, et il passe ensuite successivement dans les coupelles 34 dont les axes sont solidaires du cylindre 13. Ces coupelles 34 sont constituées chacune, de façon connue, par deux disques avec des ressorts qui appliquent les disques sur le fil 20 disposé entre eux, de façon à pouvoir appliquer sur ce fil 20 une force de freinage réglable, et donc de régler la tension du fil 20.The wire 20 delivered by the coil 2 passes through the regulating system 14. This system 14 comprises the cylinder 13 in which the cups 34 are arranged. The wire 20 enters the cylinder 13, through the upper end 35 of this cylinder, and it then passes successively through the cups 34 whose axes are integral with the cylinder 13. These cups 34 are each constituted, in a known manner, by two discs with springs which apply the discs to the wire 20 disposed between them, so as to be able to apply an adjustable braking force to this wire 20, and therefore adjust the tension of the wire 20.

Dans un but de simplification, les divers éléments des coupelles 34 ne sont pas représentés sur le dessin. Le fil 20 passe ensuite dans le guide 36, dit « guide amont », constitué par un oeillet disposé dans le fond 11 du pot 7, l'axe de cet oeillet 36 étant l'axe xx′. Le fil 20 sort ensuite du tambour 3 et passe sur le guide mobile 37, dit « guide aval », disposé hors de la cloche 16 et sous cette cloche au voisinage de l'axe xx′. La progression du fil 20 est schématisée par la flèche F20. Ce guide aval 37 tourne dans le même sens et à la même vitesse angulaire que le tambour 3. Entre le guide amont 36 et le guide aval 37, le fil 20 subit une torsion dans le sens de rotation du tambour 3 pour donner le multifilament tordu 20T. De façon analogue au guide aval 31 du fil 10, le guide aval 37 du fil 20 est constitué par un galet 38 dont l'axe 39 est solidaire de la broche creuse 19. Les axes 33, 39 des galets 32, 38 sont parallèles entre eux et situés dans un même plan horizontal P, de part et d'autre de l'axe xx′, à la même distance de cet axe. Ces galets 32, 38 sont situés à l'intérieur de la broche 19. Lorsque l'ensemble 25 est fixe, c'est-à-dire lorsque l'aimant extérieur 23 est fixe, le guide amont 36 est fixe, et les pas des torsions données, dans le dispositif 100, aux fils 10 et 20 sont égaux.For the sake of simplification, the various elements of the cups 34 are not shown in the drawing. The wire 20 then passes through the guide 36, called the "upstream guide", constituted by an eyelet disposed in the bottom 11 of the pot 7, the axis of this eyelet 36 being the axis xx ′. The wire 20 then leaves the drum 3 and passes over the movable guide 37, called the "downstream guide", placed outside the bell 16 and under this bell in the vicinity of the axis xx ′. The progression of the wire 20 is shown diagrammatically by the arrow F20. This downstream guide 37 rotates in the same direction and at the same angular speed as the drum 3. Between the upstream guide 36 and the downstream guide 37, the wire 20 is twisted in the direction of rotation of the drum 3 to give the twisted multifilament 20T. Similarly to the downstream guide 31 of the wire 10, the downstream guide 37 of the wire 20 consists of a roller 38 whose axis 39 is integral with the hollow spindle 19. The axes 33, 39 of the rollers 32, 38 are parallel between them and located in the same horizontal plane P, on either side of the axis xx ′, at the same distance from this axis. These rollers 32, 38 are located inside the spindle 19. When the assembly 25 is fixed, that is to say when the external magnet 23 is fixed, the upstream guide 36 is fixed, and the steps given twists, in the device 100, to the wires 10 and 20 are equal.

Lorsque l'ensemble 25 tourne autour de l'axe xx′, indépendamment de l'ensemble 24, grâce à la rotation de l'aimant extérieur 23 autour de l'axe xx′, le guide amont 36 tourne autour de l'axe xx′, et les pas des torsions données, dans le dispositif 100, aux fils 10 et 20 sont différents, la torsion donnée au fil 20, entre le guide amont 36 et le guide aval 37, augmentant si l'ensemble 25 tourne en sens inverse de l'ensemble tournant 24, ou diminuant si l'ensemble 25 tourne dans le même sens que l'ensemble tournant 24 à une vitesse angulaire inférieure à elle de l'ensemble tournant 24.When the assembly 25 rotates around the axis xx ′, independently of the assembly 24, by virtue of the rotation of the external magnet 23 around the axis xx ′, the upstream guide 36 rotates around the axis xx ′, And the pitch of the twists given, in the device 100, to the wires 10 and 20 are different, the twist given to the wire 20, between the upstream guide 36 and the downstream guide 37, increasing if the assembly 25 rotates in the opposite direction of the rotating assembly 24, or decreasing if the assembly 25 rotates in the same direction as the rotating assembly 24 at an angular speed lower than that of the rotating assembly 24.

Le sens de déplacement, le long de l'axe xx′, de chaque fil 10, 20 pour aller du guide amont 29, 36 au guide aval 31, 37 correspondant à ce fil est par définition le sens dans lequel il faut se déplacer, le long de l'axe xx′ pour aller d'un plan passant par le guide amont 29, 36 à un plan passant par le guide aval 31, 37 correspondant à ce fil, ces plans étant perpendiculaires à l'axe xx′. Le plan P₂₉ est un tel plan passant par le guide amont 29 du fil 10, le plan P₃₆ est un tel plan passant par le guide amont 36 du fil 20, et le plan P est un tel plan passant par les guides aval 31, 37, ces plans P₂₉, P₃₆, P étant représentés par des segments de droite à la figure 1. Les plans P₂₉, P₃₆ sont situés au-dessus du plan P, et donc le sens de déplacement le long de l'axe xx′ pour aller du guide amont 29, 36 au guide aval 31, 37 est le même pour le fil 10 et pour le fil 20 puisqu'il est orienté de haut en bas, selon la flèche F.The direction of movement, along the axis xx ′, of each wire 10, 20 to go from the upstream guide 29, 36 to the downstream guide 31, 37 corresponding to this wire is by definition the direction in which it is necessary to move, along the axis xx ′ to go from a plane passing through the upstream guide 29, 36 to a plane passing through the downstream guide 31, 37 corresponding to this wire, these planes being perpendicular to the axis xx ′. The plane P₂₉ is such a plane passing through the upstream guide 29 of the wire 10, the plane P₃₆ is such a plane passing through the upstream guide 36 of the wire 20, and the plane P is such a plane passing through the downstream guides 31, 37 , these planes P₂₉, P₃₆, P being represented by line segments in FIG. 1. The planes P₂₉, P₃₆ are located above the plane P, and therefore the direction of movement along the axis xx ′ to go from the upstream guide 29, 36 to the downstream guide 31, 37 is the same for the wire 10 and for the wire 20 since it is oriented from top to bottom, according to arrow F.

Les guides aval 31, 37 sont interconnectés par les fils 10, 20, l'ensemble de ces guides 31, 37 donnant un système régulateur 40 qui est représenté plus en détail à la figure 2. Sur cette figure 2, le sens de progression de chaque fil 10, 20 est représenté par la flèche F10, F20 comme à la figure 1. Le fil 10 passe sur le galet 32 du guide aval 31, puis ensuite sur le galet 38 du guide aval 37, pour sortir du système 40 à partir du galet 38. De façon analogue, le fil 20 passe sur le galet 38 du guide aval 37, puis ensuite sur le galet 32 du guide aval 31 pour sortir du système 40 à partir du galet 32. Ces galets 32, 38 sont entraînés en rotation autour de leurs axes 33, 39 par les fils 10, 20 qui passent donc dans le même sens sur chacun de ces galets, l'ensemble de ces galets 32, 38 tournant en outre autour de l'axe xx′ avec la même vitesse angulaire que l'ensemble tournant 24 comme précédemment décrit puisque leurs axes 33, 39 sont solidaires de la broche 19 et donc entraînés en rotation autour de l'axe xx′ par cette broche. La rotation du galet 32, schématisée par la flèche F32 est de sens opposé à la rotation du galet 38, schématisée par la flèche F38, les fils 10, 20 ayant donc des sens de progression F10, F20 croisés entre ces galets 32, 38 sans que ces fils se touchent entre ces galets et sur ces galets. Ce résultat est obtenu par exemple en faisant passer les fils 10, 20 sur deux gorges de diamètre identique, pour chacun des galets 32, 38. Ces gorges ne sont pas représentées sur le dessin dans un but de simplification. On obtient ainsi la même vitesse linéaire pour les multifilaments tordus 10T, 20T à la sortie du système 40, lorsque les tensions données aux fils 10, 20, grâce aux systèmes régulateurs 26, 14 sont égales ou peu différentes, ces tensions étant supérieures à un seuil minimum imposé par la nécessité d'adhérence de chacun des fils 10, 20 avec les galets 32, 38.The downstream guides 31, 37 are interconnected by the wires 10, 20, all of these guides 31, 37 giving a regulating system 40 which is shown in more detail in FIG. 2. In this FIG. 2, the direction of progression of each wire 10, 20 is represented by the arrow F10, F20 as in FIG. 1. The wire 10 passes over the roller 32 of the downstream guide 31, then then over the roller 38 of the downstream guide 37, to exit the system 40 from of the roller 38. Similarly, the wire 20 passes over the roller 38 of the downstream guide 37, then then over the roller 32 of the downstream guide 31 to exit the system 40 from the roller 32. These rollers 32, 38 are driven in rotation around their axes 33, 39 by the wires 10, 20 which therefore pass in the same direction on each of these rollers, all of these rollers 32, 38 further rotating around the axis xx ′ with the same speed angular as the rotating assembly 24 as previously described since their axes 33, 39 are integral with the spindle 19 and therefore driven in rotation about the axis xx ′ by this pin. The rotation of the roller 32, shown diagrammatically by the arrow F32 is in the opposite direction to the rotation of the roller 38, shown diagrammatically by the arrow F38, the wires 10, 20 therefore having directions of progression F10, F20 crossed between these rollers 32, 38 without that these wires touch between these rollers and on these rollers. This result is obtained for example by passing the wires 10, 20 over two grooves of identical diameter, for each of the rollers 32, 38. These grooves are not shown in the drawing for the purpose of simplification. The same linear speed is thus obtained for the twisted multifilaments 10T, 20T at the output of the system 40, when the voltages given to the wires 10, 20, thanks to the regulating systems 26, 14 are equal or little different, these voltages being greater than one minimum threshold imposed by the need for adhesion of each of the wires 10, 20 with the rollers 32, 38.

De préférence, les galets 32, 38 ont des formes et des dimensions identiques, et le rapport d/r est de préférence compris entre 1,2 et 4, « d » étant la distance qui sépare chaque axe 33, 39 de l'axe xx′, et « r » étant le rayon extérieur des galets 32, 38 (figure 2).Preferably, the rollers 32, 38 have identical shapes and dimensions, and the ratio d / r is preferably between 1.2 and 4, “d” being the distance which separates each axis 33, 39 from the axis xx ′, and “r” being the outside radius of the rollers 32, 38 (FIG. 2).

La progression du fil 20 entre les guides 36, 37 s'effectue à l'intérieur de la broche 19 et le fil 10, provenant du guide 30, pénètre dans la broche 19 par l'ouverture 41, de façon à parvenir au guide aval 31 (figure 2), sans que les fils 10, 20 soient au contact l'un de l'autre à l'intérieur de la broche 19.The progression of the wire 20 between the guides 36, 37 takes place inside the spindle 19 and the wire 10, coming from the guide 30, enters the spindle 19 through the opening 41, so as to reach the downstream guide 31 (FIG. 2), without the wires 10, 20 being in contact with one another inside the pin 19.

Les multifilaments tordus 10T, 20T sortant des galets 38, 32 sont ensuite réunis au point A, sur l'axe xx′ et on les fait passer sur le galet 42 dont l'axe 43 est fixe (fig. 1). Ces deux fils 10T, 20T sont donc tordus ensemble entre le point A et le galet 42, étant donné la rotation solidaire des galets 32, 38 autour de l'axe xx′, cette torsion, appelée « torsion de retors », ayant un sens opposé à la rotation du tambour 3. Lorsque l'ensemble 25 est fixe, on supprime, entre le point A et le galet 42, la torsion donnée préalablement dans le dispositif 100 aux fils 10, 20 entre les guides amont 29, 36 et les guides aval 31, 37.The twisted multifilaments 10T, 20T emerging from the rollers 38, 32 are then brought together at point A, on the axis xx ′ and they are passed over the roller 42 whose axis 43 is fixed (FIG. 1). These two wires 10T, 20T are therefore twisted together between point A and the roller 42, given the integral rotation of the rollers 32, 38 around the axis xx ′, this twist, called “twist of twists”, having a direction opposite to the rotation of the drum 3. When the assembly 25 is fixed, we remove, between point A and the roller 42, the twist given previously in the device 100 with wires 10, 20 between the upstream guides 29, 36 and the downstream guides 31, 37.

Le passage des multifilaments tordus 10T, 20T entre le point A et le galet 42, pendant leur assemblage, s'effectue le long de l'axe xx′, à l'intérieur du cylindre d'entraînement 21 qui est creux.The passage of the twisted multifilaments 10T, 20T between the point A and the roller 42, during their assembly, takes place along the axis xx ′, inside the drive cylinder 21 which is hollow.

L'assemblage 44 ainsi obtenu est un retors qui passe sur le cabestan 45 et qui est enroulé sur la bobine 46, le cabestan 45 permettant de régler la vitesse linéaire du retors 44 et par conséquent la vitesse linéaire des fils 10, 20 avant leur assemblage.The assembly 44 thus obtained is a twist which passes over the capstan 45 and which is wound on the spool 46, the capstan 45 making it possible to adjust the linear speed of the plies 44 and consequently the linear speed of the wires 10, 20 before their assembly. .

L'invention permet d'obtenir les avantages suivants par rapport aux dispositifs connus à disque tournant :
   on diminue les tensions des fils 10, 20 pendant leur passage dans le dispositif 100, avant leur assemblage, cela notamment parce que le fil 10 est plaqué contre la face interne 9 du tambour 3 pendant sa rotation, au lieu de tourner librement dans l'air autour de la bobine 2 ;
   le système régulateur 40 permettant de régler le débit des multifilaments tordus 10T, 20T est solidaire de la broche 19 et donc de l'ensemble tournant 24 du dispositif 100 et il est entraîné en rotation par le moteur 4. L'inertie de ce système 40 au démarrage ou à l'arrêt du dispositif 100 n'est donc pas encaissée par les multifilaments tordus 10T, 20T. On diminue donc les tensions de ces fils 10T, 20T au démarrage nu à l'arrêt et le dispositif 100 permet des accélérations et des décélérations rapides.The invention allows the following advantages to be obtained compared to known devices with a rotating disc:
the tensions of the wires 10, 20 are reduced during their passage through the device 100, before their assembly, this in particular because the wire 10 is pressed against the internal face 9 of the drum 3 during its rotation, instead of rotating freely in the air around coil 2;
the regulator system 40 making it possible to adjust the flow rate of the twisted multifilaments 10T, 20T is integral with the spindle 19 and therefore with the rotating assembly 24 of the device 100 and it is rotated by the motor 4. The inertia of this system 40 when the device 100 is started or stopped, it is therefore not collected by the twisted multifilaments 10T, 20T. The voltages of these wires 10T, 20T are therefore reduced on bare start when stopped and the device 100 allows rapid acceleration and deceleration.

De plus, le fait que le point A d'assemblage des multifilaments tordus 10T, 20T soit libre sur l'axe xx′ permet d'éviter l'emploi d'un guide, par exemple un oeillet, ce qui élimine les risques d'abrasion en ce point.In addition, the fact that the point A of assembly of the twisted multifilaments 10T, 20T is free on the axis xx ′ makes it possible to avoid the use of a guide, for example an eyelet, which eliminates the risks of abrasion at this point.

D'autre part, le fait que le point A soit libre sur l'axe xx′ permet à chaque multifilament tordu 10T, 20T de pénétrer dans le retors 44 selon un angle α formé par l'axe de ce fil 10T, 20T avec l'axe xx′, cet angle α étant égal à l'angle naturel d'hélice dans le retors 44. La figure 2 montre les angles α correspondant aux multifilaments tordus 10T et 20T.On the other hand, the fact that the point A is free on the axis xx ′ allows each twisted multifilament 10T, 20T to enter the plied 44 at an angle α formed by the axis of this thread 10T, 20T with l 'axis xx ′, this angle α being equal to the natural helix angle in the plied 44. FIG. 2 shows the angles α corresponding to the twisted multifilaments 10T and 20T.

Enfin le fait que les fils 10, 20 soient toujours séparés l'un de l'autre avant leur assemblage au point A élimine les risques d'abrasion et d'emmêlage de ces fils par contact mutuel.Finally, the fact that the wires 10, 20 are always separated from one another before their assembly at point A eliminates the risks of abrasion and tangling of these wires by mutual contact.

Ces avantages conduisent à des retors 44 qui ont des caractéristiques mécaniques meilleures que celles des retors obtenus avec des dispositifs connus à disques.These advantages lead to plies 44 which have better mechanical characteristics than those of plies obtained with known disc devices.

A titre d'exemple, le dispositif 100 est utilisé pour réaliser deux retors 44 dont l'un est un retors en polyamide aromatique et l'autre un retors en rayonne, chacun de ces deux retors étant obtenu avec deux fils 10, 20 qui sont des multifilaments. Les caractéristiques des multifilaments 10, 20 et des retors 44 obtenus sont données dans le tableaux suivant:

Figure imgb0001
By way of example, the device 100 is used to make two plies 44, one of which is a ply of aromatic polyamide and the other a ply of rayon, each of these two plies being obtained with two threads 10, 20 which are multifilaments. The characteristics of the multifilaments 10, 20 and of the plies 44 obtained are given in the following table:
Figure imgb0001

RemarquesRemarks

Le titre des multifilaments est donné en tex pour chacun de ces multifilaments qui sont dépourvus de torsion au départ, sur les bobines 1, 2.The title of the multifilaments is given in tex for each of these multifilaments which are devoid of twist at the start, on the coils 1, 2.

Les torsions sont exprimées en nombre de tours par mètre et la lettre Z ou S qui précède la valeur de la torsion est couramment indiquée dans l'industrie textile et signifie que la torsion est effectuée dans le sens Z (pour la lettre Z) ou dans le sens S (pour la lettre S), le sens Z et le sens S étant opposés.The twists are expressed in number of turns per meter and the letter Z or S which precedes the value of the twist is commonly indicated in the textile industry and means that the twist is carried out in the Z direction (for the letter Z) or in the S direction (for the letter S), the Z direction and the S direction being opposite.

La force de rupture est exprimée en Newtons.The breaking force is expressed in Newtons.

L'allongement est déterminé avec une force de 250 Newtons pour le retors en polyamide aromatique et avec une force de 50 Newtons pour le retors en rayonne. Cet allongement est exprimé en %.The elongation is determined with a force of 250 Newtons for the plied aromatic polyamide and with a force of 50 Newtons for the plied rayon. This elongation is expressed in%.

Ces retors sont obtenus dans le dispositif 100 en maintenant l'ensemble 25 fixe.These twists are obtained in the device 100 by keeping the assembly 25 fixed.

Par rapport à un procédé connu d'assemblage à disque tournant, les améliorations dues à l'invention sont les suivantes, en partant des mêmes multifilaments et en obtenant les mêmes torsions :
   Retors en polyamide aromatique,
   La force de rupture est augmentée de 11 %,
   L'allongement est diminué de 8 %,
   Retors en rayonne
   La force de rupture est augmentée de 13 %
   L'allongement est diminué de 7 %.Compared to a known method of assembly with a rotating disc, the improvements due to the invention are as follows, starting from the same multifilaments and obtaining the same twists:
Twisted aromatic polyamide,
The breaking force is increased by 11%,
The elongation is reduced by 8%,
Twisted rayon
The breaking force is increased by 13%
The elongation is reduced by 7%.

On voit donc que le dispositif 100 conforme à l'invention permet d'augmenter la force de rupture et de diminuer l'allongement, ce qui traduit une augmentatinn du module, et ceci de façon notable.It can therefore be seen that the device 100 according to the invention makes it possible to increase the breaking force and to decrease the elongation, which translates into an increase in the module, and this in a notable manner.

Un autre avantage du dispositif 100 précédemment décrit vient de ce que le système régulateur 14 du fil 20 se présente sous la forme d'un cylindre 13 disposé à l'intérieur du tambour 3, il est donc très facile d'enlever la bobine 2, pour la remplacer par une autre, pendant le fonctionnement du dispositif 100, et ceci sans avoir à enlever le système 14 qui reste donc à demeure, garni avec du fil 20.Another advantage of the device 100 described above comes from the fact that the regulator system 14 of the wire 20 is in the form of a cylinder 13 placed inside the drum 3, it is therefore very easy to remove the coil 2, to replace it with another, during the operation of the device 100, and this without having to remove the system 14 which therefore remains permanently, trimmed with wire 20.

Le dispositif 100 a été décrit comme permettant de réaliser préférentiellement un retors à partir de deux multifilaments, mais ce dispositif 100 pourrait être utilisé pour réaliser des assemblages avec des fils autres que des multifilaments par exemple en partant d'au moins un fil constitué par un retors pour obtenir un câblé.The device 100 has been described as making it possible to preferably produce a twist from two multifilaments, but this device 100 could be used to make assemblies with threads other than multifilaments, for example starting from at least one thread constituted by a plied to get a cable.

Il est possible aussi d'utiliser dans le dispositif 100 plusieurs bobines 1 situées à l'extérieur du tambour 3 et/ou plusieurs bobines 2 situées à l'intérieur du tambour 3, chacune de ces bobines comportant par exemple un monofilament, la torsion de ces fils 10, 20 entre les guides amont 29, 36 et aval 31, 37 correspondant à ces fils permettant alors de tordre ensemble ces fils d'un même groupe pour obtenir un multifilament.It is also possible to use in the device 100 several coils 1 located outside the drum 3 and / or several coils 2 located inside the drum 3, each of these coils comprising for example a monofilament, the twist of these wires 10, 20 between the upstream guides 29, 36 and downstream 31, 37 corresponding to these wires then making it possible to twist these wires of the same group together to obtain a multifilament.

Bien entendu, l'invention n'est pas limitée aux exemples de réalisation précédemment décrits. C'est ainsi par exemple que le système régualteur 40 pourrait être entraîné en rotation autour de l'axe xx′ par d'autres moyens que le moteur 4, mais l'emploi du moteur 4 pour faire tourner à la fois l'ensemble tournant 24 et le système régulateur 40 a l'avantage de la simplicité.Of course, the invention is not limited to the embodiments previously described. Thus, for example, the regulating system 40 could be rotated about the axis xx ′ by other means than the motor 4, but the use of the motor 4 to rotate both the rotating assembly 24 and the regulator system 40 has the advantage of simplicity.

Claims (12)

1. A device (100) for assembling at least two threads (10, 20), characterized by the following features :
a) it comprises two groups of bobbins, known as "first group" and "second group", the first group being formed by one or several bobbins (1) known as "first bobbin(s)", on each of which is wound one or several threads (10) known as "first thread(s)", and the second group being formed by one or several bobbins (2), known as "second bobbin(s) on each of which is wound one or several threads (20) known as "second thread(s)" ;
b) the device (100) comprises a wall (3) and means (4) for driving this wall in rotation around an axis (xx′) ;
c) the device (100) comprises means (22, 23) either for immobilizing the second bobbin(s) (2) during the rotation of the wall (3), or for imparting to this or these bobbin(s) a rotation independent of the rotation of the wall (3) ;
d) the device (100) comprises means for twisting the first thread (10) or the assembly of the first threads in the direction of rotation of the wall, these means being formed at least in part by :
- a guide (29), known as "upstream guide" ;
- a guide (31), known as "downstream guide" ;
- the wall (3) ;
these means permitting the first thread(s) (10) to come into contact with the inner face (9) of the wall (3), between these guides, and to turn jointly with the wall (3) around the axis, surrounding the second bobbin(s) (2) without making contact with this or these bobbins ;
e) the device (100) comprises means for twisting the second thread (20) or the assembly of the second threads, in the direction of rotation of the wall (3), these means being formed at least in part by a guide (36) known as "upstream guide" and by a guide (37) known as "downstream guide" ;
f) the direction of displacement along the axis of rotation in order to pass from the upstream guide to the downstream guide is the same for the guides concerning the first thread(s) and for the guides concerning the second thread(s) ;
g) the device (100) comprises means for driving the downstream guides (31, 37) in rotation around the axis of rotation of the wall (3) in the same direction and at the same angular speed as the wall (3), these means being other than the threads (10, 20) ;
h) the device (100) comprises means for assembling the first thread(s) (10) with the second thread(s) (20) after the passage of these threads over the downstream guides (31, 37), by twisting these threads together, in a direction opposite the direction of rotation of the wall.
2. A device (100) according to claim 1 wherein the wall (3) is formed of a drum, the first bobbin or bobbins (1) being arranged outside the drum and the second babbin or bobbins (2) being arranged inside the drum.
3. A device (100) according to any one of claims 1 or 2 wherein at least one of the downstream guides (31, 37) is a roller (32, 38) driven in rotation around its axis by the thread or threads for which this roller serves as a downstream guide, this roller furthermore turning around the axis of rotation of the wall (3).
4. A device (100) according to claim 3 wherein the two downstream guides (31, 37) are rollers (32, 38) driven in rotation by the threads for which these rollers serve as downstream guide, these rollers forming a regulator system (40) which turns around the axis of rotation of the wall (3).
5. A device (100) according to claim 4 wherein the two rollers (32, 38) are arranged on the inside of a hollow spindle (19), the axles of these rollers being integral with the spindle, the spindle being driven in rotation around the axis of rotation in the same direction and at the same angular speed as the wall (3).
6. A device (100) according to claim 5 wherein the downstream guides (31, 37) are connected together by the first thread(s) (10) and the second thread(s) (20), the first thread or threads (10) passing from their downstread guide (31) to the downstream guide (37) of the second thread or threads (20), and the second thread or threads (20) passing from their downstream guide (37) to the downstread guide (31) of the first thread or threads (10).
7. A device (100) according to any one of claims 1 to 6 wherein the means for assembling the first thread(s) (10) with the second thread(s) (20) are such as to permit the combining of the threads at a free point (A) on the axis of rotation.
8. A device (100) according to claim 7, characterized by the fact that it comprises a hollow drive cylinder (21) within which the assembled threads pass.
9. A device (100) according to any one of claims 1 to 8 which further comprises means (14, 26) for regulating the tension of at least one thread.
10. A device (100) according to claim 9, characterized by the fact that the wall (3) is formed by a drum and that the device comprises tension regulating means (14) for the second thread(s) (20), these means being arranged within the drum.
11. A device (100) according to any one of claims 1 to 10 wherein the means (4) for driving the downstream guides in rotation are the same as the means (4) for driving the wall (3) in rotation.
12. A method for assembling at least two threads (10, 20), comprising the following features :
a) one uses at least two groups of bobbins, known as "first group" and "second group", the first group being formed by one or several bobbins (1), known as "first bobbin(s)" on each of which is wound one or several threads (10), known as "first thread(s)", and the second group being formed by one or several bobbins (2), known as "second bobbin(s)", on each of which is wound one or several threads (20), known as "second thread(s)" ;
b) one uses a wall (3) which can be driven in rotation around an axis (xx′) ;
c) one immobilizes the second bobbin(s) (2) during the rotation of the wall (3) or one imparts to this or these bobbins a rotation independent of the rotation of the wall ;
d) one twists the first thread (10) or the assembly of the first threads in the direction of rotation of the wall (3), between a guide (29), known as "upstream guide", and a guide (31), known as "downstream guide", in such a manner that the first thread or threads (10) come into contact with the inner face (9) of the wall (3), between these guides, and turn jointly with the wall around the axis, surrounding the second bobbin or bobbins (2) without making contact with this or these bobbins ;
e) one twists the second thread (20) or the assembly of the second threads in the direction of rotation of the wall (3) between a guide (36), known as "upstream guide", and a guide (37), known as "downstream guide" ;
f) the direction of displacement along the axis of rotation (xx′), upon these twistings, is the same for the first thread(s) (10) and for the second thread(s) (20) ;
g) one drives the downstream guides (31, 37) in rotation around the axis of rotation of the wall (3), in the same direction and at the same angular speed as the wall (3), with means which are other than the threads (10, 20) ;
h) one assembles the first thread(s) (10) with the second thread(s) (20) after the passage of these threads over the downstream guides (31, 37) by twisting these threads together, in the direction opposite the rotation of the wall (3).
EP86110499A 1985-08-07 1986-07-30 Apparatus and method for assembling yarns, assembling yarns obtained by means of this apparatus and this method Expired - Lifetime EP0211387B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86110499T ATE45399T1 (en) 1985-08-07 1986-07-30 DEVICE AND METHOD FOR COMBINING THREADS, THREADS MADE WITH THIS DEVICE AND ACCORDING TO THIS METHOD.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8512192A FR2586038B1 (en) 1985-08-07 1985-08-07 DEVICE AND METHOD FOR JOINING WIRES; WIRE ASSEMBLIES OBTAINED WITH THIS DEVICE AND METHOD
FR8512192 1985-08-07

Publications (3)

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EP0211387A1 EP0211387A1 (en) 1987-02-25
EP0211387B1 EP0211387B1 (en) 1989-08-09
EP0211387B2 true EP0211387B2 (en) 1992-03-04

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US (1) US4689942A (en)
EP (1) EP0211387B2 (en)
JP (1) JPH0627379B2 (en)
AT (1) ATE45399T1 (en)
AU (1) AU579805B2 (en)
BR (1) BR8603775A (en)
CA (1) CA1282289C (en)
DE (1) DE3664937D1 (en)
ES (1) ES2001186A6 (en)
FR (1) FR2586038B1 (en)
OA (1) OA08380A (en)

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WO1992005302A1 (en) * 1990-09-25 1992-04-02 Regal Manufacturing Company, Inc. Apparatus and method for forming elastic corespun yarn
FR2668503B1 (en) * 1990-10-29 1992-12-24 Michelin & Cie PROCESS AND INSTALLATION FOR OBTAINING ONLINE THE PRODUCTION OF A PATCH OF ASSEMBLIES AND ITS WINDING ON A SHEET.
US6560954B2 (en) 2001-04-27 2003-05-13 Tensor Machinery Ltd. High speed binder application device
US6574944B2 (en) * 2001-06-19 2003-06-10 Mars Incorporated Method and system for ultrasonic sealing of food product packaging
US6635292B2 (en) * 2001-10-26 2003-10-21 Mars, Incorporated Ultrasonic rotary forming of food products
GB0224347D0 (en) * 2002-10-19 2002-11-27 Adria Ltd Yarn covering apparatus and method
DE10324653B4 (en) * 2003-05-30 2008-02-14 Saurer-Allma Gmbh Cabling machine and cabling method
JP2007291568A (en) * 2006-04-26 2007-11-08 Murata Mach Ltd Apparatus for parallel arrangement and yarn twisting machine equipped with the same
CN107475829A (en) * 2017-09-22 2017-12-15 嵊州市南丰机械有限公司 A kind of rotatable cladding spindle of spindle blade irrotationality

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US2752749A (en) * 1951-01-30 1956-07-03 Doutors Sa Holding Regularizing the tension of threads in spinning
US2731785A (en) * 1953-01-26 1956-01-24 vibber
NL101291C (en) * 1956-04-25
US2871648A (en) * 1957-11-04 1959-02-03 Alfred W Vibber Twisting spindle balloon control
DE1283131B (en) * 1963-03-22 1968-11-14 Palitex Project Co Gmbh Two-for-one twisting spindle
FR2263315A1 (en) * 1974-03-06 1975-10-03 Inst Iskusstvennogo Volokna Single-stage strand twisting equipment - has a tension control unit to give synchronised and selective stop/start actions
FR2565261B1 (en) * 1984-06-05 1987-05-15 Verdol Sa PROCESS FOR THE PRODUCTION OF HIGHLY REGULAR CABLES THREADS AND DEVICE FOR ITS IMPLEMENTATION

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FR2586038A1 (en) 1987-02-13
FR2586038B1 (en) 1988-05-06
CA1282289C (en) 1991-04-02
AU6091586A (en) 1987-02-12
AU579805B2 (en) 1988-12-08
EP0211387B1 (en) 1989-08-09
ES2001186A6 (en) 1988-05-01
OA08380A (en) 1988-02-29
JPS62125022A (en) 1987-06-06
BR8603775A (en) 1987-03-10
DE3664937D1 (en) 1989-09-14
EP0211387A1 (en) 1987-02-25
ATE45399T1 (en) 1989-08-15
JPH0627379B2 (en) 1994-04-13
US4689942A (en) 1987-09-01

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