EP0005664A1 - Process for transferring a filamentary material from one winding spindle onto another and device for carrying out the process - Google Patents

Abstract

The subject of the invention is a method of transferring filaments gathered in the form of a wire, at the end of the permutation of two winding pins (B1-B2), the first, full, disappearing while the second, empty , collect the wire (F). According to this process, after having displaced the wire between the two pins so as to increase the arc (α0-α1) of contact with the empty pin, the wire is progressively broken by abrasion, thus determining the separation of the broken filaments and their individual training by adhesion to the empty spindle, until said wire (F) is completely taken up by said spindle. It also relates to a device for implementing the method, comprising a movable member (1) capable of moving and maintaining the wire between the pins until the transfer is carried out. The invention applies in particular to the manufacture of continuous glass strands.

Description

In the manufacture of continuous glass strands by mechanical drawing from a die, the filaments are drawn at a uniform linear speed and are generally wound on cuffs supported by cylindrical mandrels, called pins, using a distribution device. The filaments leaving the die are grouped either in a single thread wound on a single cuff, or in several threads wound simultaneously on separate cuffs placed end to end on the same spindle. For productivity reasons, it is particularly important to ensure the continuity of this operation.

To do this, when the desired quantity of wire has been wound by a first spindle, the latter deviates from its working position, while continuing to draw the wires; a second empty spindle, already in rotation, then takes the place of the first, collects the wires still being drawn and continues their winding. In some special cases, the wires can be collected directly and separately by each cuff. More usually, on the barrel winders, we collect, in a specialized area of the empty spindle placed at the end of the latter, the threads that have been temporarily grouped during drawing and then we bring each thread on his own cuff in order to start new windings.

• - mise en rotation de la broche vide
• - éjection latérale des fils sur l'extrémité de la broche pleine
• - inversion de la position des brcches par rotation du barillet qui les supporte
• - fixation des fils sur la broche vide
• - rappel des fils sur les manchettes respectives.

The operating scheme is then as follows:

• - rotation of the empty spindle
• - lateral ejection of the wires on the end of the solid spindle
• - inversion of the position of the pins by rotation of the barrel which supports them
• - fixing of the wires on the empty spindle
• - recall of the threads on the respective cuffs.

In what follows, we will call "transfer" the phenomenon or action of fixing the wires on the empty pin (or the empty cuffs) and "transfer operation" the series of operations whose general diagram has just been given. upper.

A simple method consists in ensuring the transfer by a rapid deceleration of the full spindle gaining the rest position while the empty spindle gaining the working position rotates at the normal winding speed of the wire. Due to the increasing gap between the two speeds, the adhesion drive of the wire on the empty spindle eventually prevails over the traction exerted by the full spindle; a loop is then formed between the two pins, immediately trapped by the wire driven by adhesion on the empty pin and initiating the winding on the latter. It is apparently a process of this type that US Pat. No. 3,409,238 calls for.

According to another method, described by US Patent 1,809,660, a knife is inserted very quickly between the two pins during their permutation so as to slice the wire; the rear strand, separated from the full spindle, but driven by its adhesion to the empty spindle, is trapped under the strand from the dies, so that the drawing is taken up by the latter.

These transfer methods also apply to winders simultaneously winding more than two wires, the transfer taking place globally for all the wires, grouped together if necessary. However, they are only effective for certain threads. Indeed, for a given drawing speed, the traction exerted by the solid spindle increases in proportion to the number of filaments. Beyond a certain limit, the adhesion drive always remains lower than the drawing force which it is necessary to continue to exert and the transfer of the wire onto the empty spindle therefore does not occur, because when the wire titer increases, the adhesion drive does not increase in proportion, because the filaments constituting the wire remain more grouped and do not all come into contact with the surface of the empty spindle, and also because the wire is more rigid.

This is why, subsequently, various other solutions, more complex therefore more expensive, were proposed. In general, however, they have been found to be imperfect in a number of respects.

The end of the spindle is, for example, fitted with a circular plate. At the end of the ejection, each wire is wedged in the circumferential groove delimited by the plate and the end of the spindle as soon as the first turn is formed.

If the tray is kept close by forces elasticity ^q ues, tightening it must be low enough that each wire being introduced into the gorge and strong enough to keep it there after its introduction. Given the important differences that may exist from one thread to another, it is understandable that there is a need for adaptation in the majority of cases. In addition, the throat must be cleaned manually to get rid of the thread rang at the end of each transfer operation. We have also proposed a positive control of the plate, associated with a cleaning of the throat by the action of a pressurized liquid. However, because of its complexity, the latter device is costly to produce and to maintain.

• - éjectés tous ensemble sur l'extrémité de la broche
• - éjectés séparément sur le bord de leur manchette respective
• - simplement écartés hors du dispositif de répartition (hélices d'encroisure, en face desquelles ils restent sans être soumis à leur action).

The present invention therefore relates to a process of transfer, from a solid spindle in rotation onto an empty spindle also in rotation and after permutation of said pins, of a filiform material such as continuous glass filaments gathered in the form of a or several wires being drawn but placed outside the distribution device. Despite its simplicity, this transfer process applies to the most diverse cases and allows in particular the transfer of high titer yarns; it can be used on all barrel winders, whether the wires, for transfer, are:

• - ejected all together on the end of the spindle
• - ejected separately on the edge of their respective cuff
• - simply moved out of the distribution device (embedding helices, in front of which they remain without being subjected to their action).

• - on engage les portions de fil allant d'une broche à l'autre en les faisant pénétrer entre lesdites broches, augmentant ainsi l'arc de contact entre lesdits fils et la broche vide ou les manchettes en rotation jusqu'à ce que les fils soient soumis à l'entraînement de ladite broche et on réduit la vitesse linéaire d'entraînement des fils par la broche pleine,
• - on maintient l'engagement des fils entre les deux broches et l'on provoque la rupture progressive des filaments constituant lesdits fils jusqu'à la reprise desdits fils par la broche vide,
• - on laisse alors enrouler les fils puis on les distribue à la surface de la broche vide en rotation.

According to the invention:

• - the portions of wire going from one spindle to the other are engaged by making them penetrate between said pins, thus increasing the arc of contact between said wires and the empty pin or the rotating cuffs until the wires are subjected to the drive of said spindle and the linear speed of drive of the wires is reduced by the full spindle,
• the engagement of the wires between the two pins is maintained and the filaments constituting said wires are gradually broken until said wires are taken up by the empty pin,
• - the wires are then allowed to wind up and then distributed over the surface of the empty spindle in rotation.

In the foregoing, it should be understood that the wires can be grouped together or not, the principle of the invention applying in all cases.

The present invention also relates to arrangements

The empty spindle B2 rotating at its maximum speed has just arrived in the winding position by pivoting the barrel 83, while the full spindle B1, still rotating, but slowed down, and continuing the drawing of the wire F according to the dotted path , arrived in the rest position.

As soon as the pins are in this new position, a force is exerted which causes between the two pins the displacement (symbolized by an arrow) of the portion of the wire F included between said pins, the path of which then follows the broken line BAC. The contact arc of wire F on pin B2, which was initially equal to α o, increases by a value α 1.

For a wire of sufficiently low titer, the transfer is carried out in a conventional manner: as shown diagrammatically in FIG. 1B, due to the difference created between the speed of the wire F and the peripheral speed of the empty spindle B2 (either by using only the difference between the angular velocities w2 and w1, i.e. by further slowing down the pin 81), also due to the significant increase in the arc of contact between said wire and the pin 82, this action has the effect of causing instantly drive the wire F by adhesion to said spindle. The quantity of wire drawn by spindle 82 becomes greater than the quantity of wire wound by 81. This is shown schematically by the displacement of point 8 at B 'taken at the start of the process, and the slight relaxation of the wire which results therefrom.

The arc BB 'increases rapidly and this portion of wire is wedged at B "by the wire F, forming a first complete turn, as shown in FIG. 1C. The tension then undergone by the portions AC and AB" causes the rupture of the thread at point A.

For a higher title thread, this transfer action cannot be carried out for the reasons mentioned above (see page 2, lines 17 to 2 ₄ ). It can only be accomplished if it is accompanied by abrasion rupture at point A of a certain number of filaments constituting the yarn, which filaments, at least on yarns with little or no twist, which is the case. , remain glued to 82 and are driven permanently by it. The tensile force exerted by B1 decreases while that exerted by 82 increases as the filaments break, which favors the entrainment of the wire partially broken by the spindle 82.

The recovery of the wire F by the pin 82 ends with the breaking of the wire by abrasion which occurs at point A. The winding of the wire can then continue on the pin 82.

The method according to the invention can be implemented by devices such as those described below by way of nonlimiting examples.

The device shown in FIGS. 2 and 2A is adaptable to any current barrel winder, either winding a single thread and with which the latter is ejected on the edge of the cuff, or winding one or more threads and with which these are ejected all together on the end of the spindle. FIG. 2 does not show the device for ejecting the eyelash (s) which will be discussed later. The transfer device essentially comprises a jack 1, the rod of which is provided at its end with a V-shaped finger 2, the edges of which are not very tapered, and an external parallel guide rod 3 passing through a hole or eye. 4; fixed very rigidly by the strap 5 at the end of the rod of the jack itself, its purpose is to maintain the orientation of the finger 2 during the maneuver by preventing the rod of the jack from turning on itself.

The jack 1 can then be fixed on the ground or on the frame of the winding machine itself by an assembly method not shown. Its positioning is such that the finger 2 moves in the vertical plane in which the tensioned wire has been brought by an ejector such as those described below, with a view to its transfer, before rotation of the barrel B3.

• - position "repos" ; la tige est rentrée et son extrémité est hors du champ des broches. Le barillet peut ainsi tourner sans rencontrer le doigt 2.
• - position "travail" ; la tige est sortie et son extrémité est engagée entre les deux broches.

The cylinder rod can occupy two positions:

• - "rest"position; the rod is retracted and its end is outside the scope of the pins. The barrel can thus rotate without meeting finger 2.
• - "work"position; the rod is extended and its end is engaged between the two pins.

The orientation of the cylinder rod is such that in its movement, the finger 2 meets the taut wire 6 between the two pins and drives it in a vertical plane slowly enough not to cut it.

Given the installation constraints and the space available, the cylinder stroke is chosen as large as possible in order to obtain the largest possible winding arc. For the same reason, the orientation of the jack will cause the rod to pass as close as possible to the empty spindle in the working position because it is on this spindle that one seeks to increase the initial winding arc α o.

The actuator control mode can be, for example, hydraulic or pneumatic.

The actuation command can be determined by a distributor 7 controlled automatically as soon as the barrel is indexed; this information can be taken from the winder control cabinet at the end of rotation contact.

But, as shown in Figure 3, the actuation control of the cylinder can be very advantageously performed simultaneously with locking, by the distributor 8 which controls the locking cylinder 9 of the barrel. 63; in this case, the cylinders 1 and 9 are connected in parallel to the distributor 8. The rod then remains in position "working" throughout the operation of bobina- ^g e.

If the jack is secured to the ground, the two pipes 10a and 10b for connecting the latter to the distributor will be provided with two quick couplings which can be snapped in order to be able to possibly remove the winder.

These control modes can be adopted for the following devices and will therefore not be included in the description of their operation.

The device shown in Figure 4, derived from the previous one is adaptable to a barrel winder simultaneously winding two son which, for transfer, are simply moved out of the distribution device.

The previous finger 2 is simply replaced by the blade 13, consisting of a plate provided with two notches 14 and 15, which moves in a plane parallel to the axis of rotation of the pins. The positioning of the jack is such that, when the blade 13 moves, the two notches 14 and 15 remain in the two vertical planes perpendicular to the axis of the spindle and passing through the middle of the windings and in which the wires 11 and 12 are naturally located after being removed from the field of action of the distribution devices 16 by displacement of a cylindrical bar 17 parallel to the axis of rotation of the pins, for their transfer.

In a variant not shown, applicable to a winder simultaneously winding two wires which, for transfer, are ejected on the edge of their respective cuffs, the two notches 14 and 15 remain, during the movement of the blade 13, in two vertical planes close to the end of the cuffs and into which the wires 11 and 12 have been brought, with a view to their transfer, before rotation of the barrel 83, by an ejector of known type, such as that described in US Pat. No. 3,109,602.

Another device, shown in Figure 5, is designed for a barrel winder on which, for transfer, the son are ejected all together on the end of the spindle. This device is fixed to the frame of the winder. It comprises a horizontal shaft 21 which can rotate in two bearings 22 integral with the frame 23 of the winder. This shaft comes out parallel to the spindle 82 and loses a curved lever 24 at the end of which the finger 2 is fixed.

The shape and length of the curved lever 24 are determined so that it does not meet the pins in its movement, so that the winding arc obtained is as large as possible and so that the finger 2 can move in the plane containing the strand stretched between the two pins during the transfer operation and driving this strand in its movement.

• - position "repos" : le levier 24 est relevé et le doigt 2 est hors du champ des broches
• - position "travail" : le levier est relevé et le doigt est engagé entre les broches.

The assembly "axis 21 - lever 24 - finger 2" can occupy two positions:

• - "rest" position: lever 24 is raised and finger 2 is outside the spindle range
• - "working" position: the lever is raised and the finger is engaged between the pins.

These two positions are obtained by pivoting the shaft 21 by the action of a jack 25. Other means can be used without departing from the scope of the invention to rotate the arm 21.

In the figure, the wire distribution device has been omitted for clarity. At the time of transfer, the wire is released from it by an ejector: this ejector consists of an arm 26 carrying a bar 27, the rotation of which separates the wire from the distribution device, and an ejector fork 28 sliding on a support 29, which brings the wire at the end of the shaft, facing the spindle nose, in the plane of the finger 2. Such an ejector is described in more detail in the French patent published under number 2 291 138.

In the case of the transfer of the wires directly to the edge or the center of the cuffs, the finger 2 ending the end of the lever 24 is replaced by the blade 13 previously described. As for the previous device, the lever 24 is positioned so that the notches 14 and 15 move in the vertical planes in which the wires 11 and 12 have been brought for their transfer, that is to say after simple separation of the field of action of the 16 wire distribution devices, either after ejection from the winding.

The production of large windings of wire, such as cylindrical coils, requires the gradual separation of the wire distribution mechanism as the winding grows.

Another variant of the previous device, adapted to this particular case, is shown in FIG. 6.

As the distribution mechanism 30 with its wire guide 31 is supported by an oscillating arm 32, it is then possible to use the movement of this arm to control the lever 24.

The embodiment chosen comprises a horizontal shaft 33 fixed under the body of the distribution mechanism 30 parallel to the spindle.

The shaft carries at one of its ends the curved lever 24 and the finger 2 described above.

The other end of the shaft 33 carries a crank arm 34 keyed at a predetermined angle.

Finally, the crank arm 34 is articulated at one end of a link 35, the other end of which rotates around a fixed journal 36 secured to the frame 23 of the winder.

The relative position of the different axes of rotation of this assembly as well as the lengths of the crank arm 34 and the link 35 are chosen to allow the engagement of the lever 24 between the two pins quickly when the oscillating support arm of the mechanism distribution ends its approach movement towards the spindle.

Conversely, when the oscillating support arm begins its movement away from the spindle (in order to distance the distribution mechanism, to allow either the winding of the wire, or the pivoting of the barrel), the lever 24 is released very quickly between the two pins down.

According to the devices described above, the contact arc of the wire with the empty pin B2 is of the order of 130 ° on average. They allow the transfer, either of fine threads (titer less than or equal to 160 tex) whatever their sliding qualities on a smooth support, or of larger threads (titer between 160 and 1200 tex) little slippery, on a support smooth.

To ensure the transfer of very large wires (titer greater than 1200 tex), it becomes necessary to obtain a contact arc greater than 180 °. This can be obtained by the following device which makes it possible to reach a contact arc of approximately 270 °.

As shown in FIGS. 7A and 7D, the bar feed element 41 is either a small blade 41a having a V-shaped edge 42a, or an elongated blade 41b, the edge of which is formed by two V 42b, depending on whether the transfer is to be carried out on the end of the spindle or directly on the cuffs.

One or the other of these two blades is fixed to the end of a cylindrical rod so that it is arranged parallel to the axis of rotation of the pins.

The mechanical embodiment described below can be installed in front of any barrel winder without modification thereof, the mechanism being made integral with the ground or fixed infrastructure.

The description below is valid for the two types of interlocking elements 41.

The bar feeder element 41 is mounted at the end of a crank 43. Concentrically to the bar feeder 41, a loose roller 44 has been mounted, the outside diameter of which is several millimeters (about 10) greater than the width of the 'bar feeder.

The roller 44 is intended to roll on the outer surface of the end of the spindle while maintaining the bar feeder at a short distance from the spindle, parallel to its axis. We will see later how this operation is carried out.

The bearing 45 carrying the crank 43 is fixed at the end of an arm 46; but, in the rest position, the crank is held parallel to the arm and folded against it by the effect of a torsion spring 47 which exerts its force in the counterclockwise direction; the crank is therefore in abutment on the cleat 48.

The arm 46 is articulated in a bearing 49 integral with the support 50. Its movement is given by a rotary actuator 51 controlled by the distributor 8.

• - position de repos : le bras 46 est sensiblement horizontal et droite du support 50 de façon à tenir l'embarreur 41 hors du champ des broches pendant une rotation du barillet. L'espace entre la broche 81 ou B2 et l'embarreur 41 est de plus suffisamment dégagé peur oermettre le passage d'une mèche et les opérations de relance semi-automatique, telles que décrites dans le brevet français publié sous le n" 2 291 138. Enfin, la hauteur du support 50 est telle qu'elle laisse libre accès à la broche pour qu'on puisse y effectuer aisément une relance manuelle.
• - position de travail : le bras 46 est sensiblement vertical, au-dessus du support 50, position à laquelle il a été amené par une rotation dans le sens horaire.

As shown in FIG. 7E, the angle of rotation of the jack 51 and the position of the support 50, as well as the length of the arm 46 and of the crank 43 are determined and combined so that the system can occupy the following two extreme positions :

• - rest position: the arm 46 is substantially horizontal and straight of the support 50 so as to hold the bar feeder 41 outside the field of the pins during a rotation of the barrel. The space between spindle 81 or B2 and the bar feeder 41 is also sufficiently cleared to allow the passage of a wick and the semi-automatic recovery operations, as described in the French patent published under the number 2,291. 138. Finally, the height of the support 50 is such that it gives free access to the spindle so that a manual recovery can be easily carried out there.
• - working position: the arm 46 is substantially vertical, above the support 50, position to which it has been brought by a rotation clockwise.

The crank 43 is moved away from the arm 46 by the contact of the roller 44 with the spindle.

• t2 a d'abord été circulaire, concentriquement à t1 jusqu'à ce que l'embarreur 41 rencontre le fil BC tendu entre les deux broches. A partir de ce moment, la manivelle 43 qui était repliée contre le bras 46 sous l'effet du ressort de torsion 47 est sollicitée vers l'arrière par l'action du fil BC sur l'embarreur. A.partir du point D, la trajectoire n'est plus géométriquement identifiable (elle dépend de la tension du fil BC), ceci jusqu'en E, instant où le galet 44 entre en contact avec la broche et où t2 redevient circulaire, concentriquement à la broche cette fois. Le fil est en contact avec l'embarreur 41 depuis que ce dernier est arrivé au point D de sa trajectoire et il commence à provoquer la rotation de la lame, de sorte que l'arête 42 de celle-ci vient progressivement attaquer et érailler le fil, ceci jusqu'à ce que l'embarreur arrive en fin de course puisque le fil se trouve suffisamment affaibli pour être capturé par la broche 82, ce qui achève de le rompre.

We see in FIG. 7E what is the trajectory t2 of the axis of the assembly "roller 44 - bar feeder 41" during the rotation movement of the arm 46 along the arc t1:

• t2 was first circular, concentrically with t1 until the bar feeder 41 meets the wire BC stretched between the two pins. From this moment, the crank 43 which was folded against the arm 46 under the effect of the torsion spring 47 is biased towards the rear by the action of the wire BC on the bar feeder. A. from point D, the trajectory is no longer geometrically identifiable (it depends on the tension of the wire BC), this up to E, moment when the roller 44 comes into contact with the spindle and where t2 becomes circular, concentrically to the spit this time. The wire is in contact with the bar feeder 41 since the latter has arrived at point D of its trajectory and it begins to cause the blade to rotate, so that the edge 42 of the latter gradually attacks and derails the wire, this until the bar feeder reaches the end of the race since the wire is sufficiently weakened to be captured by the pin 82, which completes breaking it.

As in the previous cases, these devices are positioned in such a way that the grooves of the V-shaped blades 41a or 41b move in planes perpendicular to the axis of the pins, into which the wires have been brought for transfer.

• 1 - Lorsqu'une bobine est terminée sur la broche B1, la broche B2 est mise en rotation à sa vitesse normale et simultanément le fil est sorti du champ d'action du dispositif de répartition du fil, soit par pivotement de la barre 17, soit par un dispositif éjecteur de type connu et employé couramment dans la technique de fabrication du fil de verre tel que l'ensemble 26 à 29 décrit plus haut.
• 2 - L'inversion des deux broches est réalisée par pivotement du barillet 83, opération qui se décompose en :
  • . déverrouillage et mise en position de repos du levier embarreur si l'actionnement de celui-ci est effectué par le distributeur 8 ou par l'éloignement du mécanisme de répartition 30.
  • . pivotement du barillet
  • . verrouillage avec mise en position de travail du levier embarreur si la commande de celui-ci est effectuée par le même distributeur 8 ou par le rapprochement du mécanisme de répartition 30.
• 3 - La broche B1 est ralentie.
• 4 - Reprise du fil par la broche vide en position travail.
• 5 - A la fin du déplacement qui est imposé au fil, ce dernier, affaibli par l'abrasion du doigt, se rompt et subit le transfert.
• 6 - Mise en position "repos" de la barre 17 ou de l'éjecteur 26 à 29 qui a pour effet d'amener le fil dans le champ d'action des dispositifs de répartition et de commencer la nouvelle bobine.

The operation of the devices described above and the sequence of operations are as follows:

• 1 - When a coil is finished on spindle B1, spindle B2 is rotated at its normal speed and simultaneously the wire is out of the field of action of the wire distribution device, either by pivoting the bar 17, either by an ejector device of known type and commonly used in the glass yarn manufacturing technique such as the assembly 26 to 29 described above.
• 2 - The two pins are inverted by pivoting the barrel 83, an operation which is broken down into:
  • . unlocking and placing the bar feed lever in the rest position if the latter is actuated by the distributor 8 or by moving the distribution mechanism 30 away.
  • . barrel pivoting
  • . locking with the bar feed lever being put into the working position if the latter is controlled by the same distributor 8 or by bringing the distribution mechanism 30 closer together.
• 3 - Pin B1 is slowed down.
• 4 - Return of the wire by the empty spindle in the working position.
• 5 - At the end of the movement which is imposed on the wire, the latter, weakened by abrasion of the finger, breaks and undergoes the transfer.
• 6 - Placing in the "rest" position of the bar 17 or the ejector 26 to 29 which has the effect of bringing the wire into the field of action of the distribution devices and of starting the new reel.

• - le transfert du fil peut être effectué sur n'importe quelle surface, que celle-ci soit lisse comme la surface de la broche ou celle des manchettes en plastique, ou plus irrégulière comme celle des manchettes en carton couramment utilisées.
• - dans la gamme des fils actuellement connus, le processus de transfert peut être assuré quel que soit le titre desdits fils.
• - le transfert du fil peut être également effectué indépendamment de la position occupée par ledit fil par rapport à l'enroulement.
• - le transfert du fil ne nécessite pas une commande précise de freinage de la bobine pleine au cours du transfert.

From the detailed description of the transfer method according to the invention, it can be seen that it has several important advantages over the prior art. These are:

• - the wire transfer can be carried out on any surface, whether this is smooth like the surface of the spindle or that of the plastic cuffs, or more irregular like that of the commonly used cardboard cuffs.
• - in the range of yarns currently known, the process of transfer can be ensured whatever the title of said sons.
• - The wire transfer can also be carried out independently of the position occupied by said wire relative to the winding.
• - wire transfer does not require precise braking control of the full spool during transfer.

• - ces dispositifs peuvent être implantés sur des bobinoirs à barillet sans exiger de modification particulière de ces derniers ;
• - ils peuvent être adaptés sur tout type de bobinoir à barillet comprenant deux broches ou plus.

From the detailed description of the various embodiments of the invention, other advantages emerge:

• - These devices can be installed on barrel winders without requiring any particular modification of the latter;
• - They can be adapted to any type of barrel winder comprising two or more pins.

Claims (11)

1. Method for transferring a filiform material such as continuous glass filaments gathered in the form of a high titer wire, at the end of the permutation of two pins 81 and 82, the first, full, erasing and the second being vacuum, consisting in moving the wire between the two pins so as to increase the arc of contact with B2 and cutting the wire, characterized in that one causes: a) - the progressive rupture of the wire determining the separation of the broken filaments constituting said wire; b) - the individual drive of each of the broken filaments constituting said wire, by adhesion to the pin 82 until the complete recovery of said wire by said pin. 2. Transfer device for implementing the method according to claim 1, comprising a fast-moving member engaging the wire between pins B1 and B2, characterized in that this member is provided at its free end with a part having slightly tapered edges. 3. Device according to claim 2, characterized in that the movable member consists of two arms, one of which pivots under the action of the tensioned wire and comes into contact with the external surface of the end of the spindle 82, at the end of the trip. 4. Device according to claim 2, characterized in that the movable member is a straight rod with rectilinear movement, provided at its free end with a V-shaped part (2), and actuated by an actuator (1) controlled by a distributor (7, 8). 5. Device according to claim 2, characterized in that the movable member is a straight rod with rectilinear displacement, the free end of which comprises a blade (13) having two notches (14) and (15), and actuated by a jack ( 1) ordered by a distributor (7, 8). 6. Device according to claim 2, characterized in that the movable member is a curved lever (24), provided at its free end with a V-shaped part (2) and actuated by a jack (25) controlled by a distributor (7, 8). 7. Device according to claim 2, characterized in that the movable member is a curved lever (24) whose free end is provided with a blade (13) comprising two notches (14) and (15), actuated by a jack (25) controlled by a distributor (7, 8). 8. Device according to one of claims 6 and 7, character se in that the movable member is carried by the thread distribution mechanism (30) moving as the winding grows and actuated by the movement of said mechanism (30). 9. Device according to claim 8, characterized in that the movable member is a lever (24) carrying a bar feed element, mounted on a shaft (33) carried by the wire distribution mechanism and controlled in rotation by a connecting rod system (34) crank (35). 10. Device according to claim 3, characterized in that the movable member is an arm (46), one end of which is provided with a paliar (45) carrying a crank (43) on which is fixed an interlocking element , actuated by a rotary actuator (51) controlled by a distributor (8). 11. Device according to claim 10, characterized in that the crank is biased elastically towards the rear of the arm 46 and that the interlocking element is a V-shaped part (41) fixed to the end of a cylindrical rod carrying a roller (44).

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