EP0500433B1 - Method and device for securing the yarn end of a bobbin - Google Patents

Method and device for securing the yarn end of a bobbin Download PDF

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Publication number
EP0500433B1
EP0500433B1 EP92400404A EP92400404A EP0500433B1 EP 0500433 B1 EP0500433 B1 EP 0500433B1 EP 92400404 A EP92400404 A EP 92400404A EP 92400404 A EP92400404 A EP 92400404A EP 0500433 B1 EP0500433 B1 EP 0500433B1
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EP
European Patent Office
Prior art keywords
bobbin
yarn
needle
suction nozzle
suction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP92400404A
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German (de)
French (fr)
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EP0500433A1 (en
Inventor
Claude Dittly
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Superba SAS
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Superba SAS
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Filing date
Publication date
Application filed by Superba SAS filed Critical Superba SAS
Priority to DE1992607023 priority Critical patent/DE69207023T2/en
Publication of EP0500433A1 publication Critical patent/EP0500433A1/en
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Publication of EP0500433B1 publication Critical patent/EP0500433B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H65/00—Securing material to cores or formers
    • B65H65/005—Securing end of yarn in the wound or completed package
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the present invention relates to a method for fixing the end of a wire of a spool.
  • the invention also relates to a device for implementing this method.
  • Textile yarn spools are formed automatically on winders.
  • the reels are continuously transported on a belt conveyor, to an unloading station where an operator unloads them.
  • the identification of the coils is currently carried out by means of labels applied to the tubular internal face of the coils on which the wire is wound.
  • Patent DD-A-79,245 which corresponds to the preamble of claims 1 and 2, discloses a method and a device in which a vacuum is created inside the coil, this vacuum being sufficient to draw the end unbound wire, while rotating the spool to unwind the unbound end of the wire so that it can be sufficiently sucked.
  • DE-C-2 054 131 also discloses a method in which the end of the wire is engaged in a hook, the hook is introduced into the spool and the hook is removed from the spool.
  • a method does not prevent the subsequent unwinding of the wire when a tensile force is applied to its end.
  • the object of the present invention is to remedy the above drawbacks, by creating a method and a device which make it possible to easily and automatically fix the end of the wire on spools. This object is achieved by a method according to claim 1 and a device according to claim 2.
  • the suction nozzle opens onto the upper part of the coil and the needle is placed near an upper corner of this coil.
  • the nozzle has a suction slot parallel to the axis of the coil and extending substantially over the entire length of the latter.
  • the nozzle is capable of sucking the wire inward regardless of the position of the end of the wire on the spool.
  • the nozzle is pivotally mounted on an axis parallel to that of the coil between the position where its suction opening is spaced from the coil and the position where this opening is substantially in contact with the coil .
  • the nozzle brings the end of the thread into contact with the needle, which which allows the hook thereof to engage with the thread when the needle moves to its initial position.
  • the device for fixing the end 2 of the wire to the coil 1 comprises (see FIGS. 1 and 3) means 3 for successively bringing coils 1 onto two spaced supports 4, 5.
  • the means 3 for successively bringing coils 1 onto the two spaced supports 4, 5 comprise a belt conveyor supporting and moving the coils 1, in the direction of the axis XX 'of their bobbin tubular.
  • the two spaced supports are constituted by two rotary rollers 4, 5 parallel receiving each coil according to two generators thereof (see Figure 3).
  • These two rotary rollers 4, 5 are connected together by a belt or the like to be able to rotate in the same direction around their respective axes.
  • This belt is driven by an electric motor provided with a device for reversing the direction of rotation, so that the rollers 4, 5 can rotate either in one direction or in the opposite direction, as will be described in more detail in more detail. far.
  • the coil 1 arrives with its hanging wire end 2 at the end of the conveyor belt 3 (see FIG. 1), after which it is placed on two rotating rollers 4, 5 allowing the coil 1 to rotate around its axis.
  • XX ' see Figures 2 and 3).
  • the support 7 comprises means such as a hydraulic or pneumatic actuator for moving the needle 8 in the aforementioned direction D and to bring it back to its initial position released from the coil 1.
  • the suction nozzle 6 opens onto the upper part of the coil 1 and the needle 8 is placed near an upper corner 10 of this coil 1.
  • the nozzle 6 comprises a slow suction 11 parallel to the axis XX ′ of the coil 1 and extending substantially over the entire length of the latter.
  • the nozzle 6 is pivotally mounted on an axis YY 'parallel to that of the coil 1 between a position (see FIG. 5) where its suction opening 11 is spaced from the coil 1 and a position (see FIGS. 3, 4 and 8) where this opening 11 is substantially in contact with the coil 1.
  • the direction D of movement of the needle 8 passes slightly under the end of the wire 2 held in the suction nozzle 6 when the latter is spaced from the coil 1.
  • the suction nozzle 6 contains a sensor 12 sensitive to the presence of the end of the wire 2 inside this nozzle.
  • This sensor 12 is suitable for controlling the stopping of the rotation of the coil 1, in the positions shown in FIGS. 4 to 6 and 8, 9.
  • the support 7 of the needle 8 comprises means (see arrow F in FIG. 9) for rotating the needle 8 by a quarter of a turn on its axis, when the latter moves towards its position. initial.
  • the nozzle 6 In its initial position, the nozzle 6 is substantially in contact with the upper part of the coil 1, as indicated in FIG. 3 and the needle 8 is recessed.
  • the coil 1 being in position on the rollers 4, 5, it is rotated to rotate the coil 1 (see Figure 3) to bring the end of the wire 2 closer to the suction nozzle 6.
  • the sensor 12 detects the presence of the wire 2 and controls the stopping of the rotation of the coil 1 which thus remains stationary for the rest of the operations.
  • the needle 8 is moved to an upper corner 10 of the coil 1.
  • the needle 8 crosses the corner 10 and its hook 9 projects from the top of the coil, passing under wire 2.
  • the needle 8 is moved to its initial position (see FIG. 9).
  • the hook 9 of the needle 8 engages the thread 2 (see figure 7).
  • the needle 8 therefore pulls the thread backwards.
  • the needle 8 Before the thread 2 engages in the spool 1, the needle 8 is made to turn a quarter of a turn on itself (see arrow F in FIG. 9), which allows the thread to be locked relative to needle 8.
  • the needle 8 pulls the wire 2 between the windings of the wire in the corner 10 of the spool in order to hold it captive in this corner 10, as shown in FIGS. 10 and 11.
  • the device and the method which have just been described therefore make it possible to effectively fix the end of the wire 2 to the coil, without the use of a label capable of being torn off during handling.
  • the coils can then be subject to labeling or marking having no function of fixing the wire.
  • the nozzle 6 could include a movable finger in the slot 11 to move the wire 2 towards the needle 8.
  • the device could be completed by a device for automatically cutting the end of the wire 2 projecting from the coil and / or by a device for making a knot in said end.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Replacement Of Web Rolls (AREA)
  • Manufacture Of Motors, Generators (AREA)

Description

La présente invention concerne un procédé pour fixer l'extrémité d'un fil d'une bobine.The present invention relates to a method for fixing the end of a wire of a spool.

L'invention vise également un dispositif pour la mise en oeuvre de ce procédé.The invention also relates to a device for implementing this method.

Les bobines de fils textiles sont formées automatiquement sur des bobinoirs.Textile yarn spools are formed automatically on winders.

A la sortie de ces bobinoirs, les bobines sont transportées en continu sur un convoyeur à bande, vers un poste de déchargement où un opérateur les décharge.At the exit of these winders, the reels are continuously transported on a belt conveyor, to an unloading station where an operator unloads them.

Après cette décharge, l'opérateur doit encore effectuer les opérations suivantes :

  • 1) enrouler autour de la bobine, l'extrémité du fil qui s'est déroulé au cours du déplacement de la bobine sur le convoyeur à bande,
  • 2) faire un noeud à cette extrémité du fil pour la fixer à la bobine et éviter le dévidage ultérieur de celle-ci,
  • 3) ranger les bobines.
After this discharge, the operator must still carry out the following operations:
  • 1) wind the end of the wire which unwound during the movement of the coil on the belt conveyor around the reel,
  • 2) make a knot at this end of the wire to fix it to the spool and avoid subsequent unwinding of the latter,
  • 3) store the reels.

Par ailleurs, le repérage des bobines est actuellement réalisé au moyen d'étiquettes appliquées sur la face interne tubulaire des bobinots sur lesquels le fil est enroulé.Furthermore, the identification of the coils is currently carried out by means of labels applied to the tubular internal face of the coils on which the wire is wound.

Toutefois, ces étiquettes sont peu visibles notamment de loin, de sorte qu'il est difficile de déceler une éventuelle erreur due à un mélange de bobines portant des fils de lots différents.However, these labels are barely visible, particularly from a distance, so that it is difficult to detect a possible error due to a mixture of coils carrying wires from different lots.

On connaît par le brevet DD-A-79 245, qui correspond au préambule des revendications 1 et 2, un procédé et un dispositif dans lesquels on crée une dépression à l'intérieur de la bobine, cette dépression étant suffisante pour aspirer l'extrémité non fixée du fil, tout en faisant tourner la bobine pour dérouler l'extrémité non fixée du fil pour que celle-ci puisse être suffisamment aspirée.Patent DD-A-79,245, which corresponds to the preamble of claims 1 and 2, discloses a method and a device in which a vacuum is created inside the coil, this vacuum being sufficient to draw the end unbound wire, while rotating the spool to unwind the unbound end of the wire so that it can be sufficiently sucked.

Un tel procédé a pour inconvénient de laisser une longue extrémité du fil libre à l'intérieur du bobinot et n'empêche pas le dévidage ultérieur.The disadvantage of such a method is that it leaves a long end of the wire free inside the bobbin and does not prevent subsequent reeling.

On connaît également par le brevet DE-C-2 054 131 un procédé dans lequel on engage l'extrémité du fil dans un crochet, on introduit le crochet dans la bobine et on retire le crochet de la bobine. Or un tel procédé n'empêche pas le dévidage ultérieur du fil lorsqu'une force de traction est appliquée à son extrémité.DE-C-2 054 131 also discloses a method in which the end of the wire is engaged in a hook, the hook is introduced into the spool and the hook is removed from the spool. However, such a method does not prevent the subsequent unwinding of the wire when a tensile force is applied to its end.

Le but de la présente invention est de remédier aux inconvénients ci-dessus, en créant un procédé et un dispositif qui permettent de fixer facilement et automatiquement l'extrémité du fil sur des bobines. Ce but est atteint par un procédé selon la revendication 1 et un dispositif selon la revendication 2.The object of the present invention is to remedy the above drawbacks, by creating a method and a device which make it possible to easily and automatically fix the end of the wire on spools. This object is achieved by a method according to claim 1 and a device according to claim 2.

L'extrémité du fil est ainsi retenue prisonnière entre les enroulements de fil de l'un des coins de la bobine. Ce procédé et ce dispositif permettent de fixer efficacement l'extrémité du fil à la bobine et d'éviter ainsi l'inconvénient lié à l'application d'une étiquette pour réaliser cette fixation.The end of the wire is thus held captive between the wire windings of one of the corners of the coil. This method and this device make it possible to effectively fix the end of the wire to the spool and thus avoid the drawback associated with the application of a label to achieve this fixation.

Selon une version avantageuse de l'invention, la buse aspirante débouche sur la partie supérieure de la bobine et l'aiguille est placée près d'un coin supérieur de cette bobine.According to an advantageous version of the invention, the suction nozzle opens onto the upper part of the coil and the needle is placed near an upper corner of this coil.

De préférence, la buse comporte une fente d'aspiration parallèle à l'axe de la bobine et s'étendant sensiblement sur toute la longueur de celle-ci.Preferably, the nozzle has a suction slot parallel to the axis of the coil and extending substantially over the entire length of the latter.

De ce fait, la buse est capable d'aspirer le fil vers son intérieur quelle que soit la position de l'extrémité du fil sur la bobine.Therefore, the nozzle is capable of sucking the wire inward regardless of the position of the end of the wire on the spool.

Selon une caractéristique préférée de l'invention, la buse est montée pivotante sur un axe parallèle à celui de la bobine entre la position où son ouverture d'aspiration est espacée de la bobine et la position où cette ouverture est sensiblement en contact avec la bobine.According to a preferred characteristic of the invention, the nozzle is pivotally mounted on an axis parallel to that of the coil between the position where its suction opening is spaced from the coil and the position where this opening is substantially in contact with the coil .

Lors de la dernière position ci-dessus, la buse amène l'extrémité du fil en contact avec l'aiguille, ce qui permet au crochet de celui-ci de venir en prise avec le fil lors du déplacement de l'aiguille vers sa position initiale.In the last position above, the nozzle brings the end of the thread into contact with the needle, which which allows the hook thereof to engage with the thread when the needle moves to its initial position.

D'autres particularités et avantages de l'invention apparaîtront encore dans la description ci-dessous.Other features and advantages of the invention will appear in the description below.

Aux dessins annexés donnés à titre d'exemples non limitatifs :

  • la figure 1 est une vue d'une bobine de fil en position sur l'extrémité d'un tapis transporteur ;
  • la figure 2 montre la bobine en position sur le dispositif selon l'invention,
  • la figure 3 est une vue en bout de la bobine montrant la buse d'aspiration et l'extrémité du fil encore éloignée de la buse,
  • la figure 4 est une vue analogue à la figure 3, l'extrémité du fil ayant été aspirée dans la buse,
  • la figure 5 montre la buse d'aspiration en position dégagée de la bobine,
  • la figure 6 montre la bobine dans le sens de sa longueur ainsi que l'aiguille qui a traversé un coin supérieur de la bobine,
  • la figure 7 est une vue agrandie du coin supérieur de la bobine et de l'aiguille,
  • la figure 8 est une vue en bout de la bobine, montrant une position ultérieure de la buse, du fil et de l'aiguille,
  • la figure 9 est une autre vue de la bobine, montrant l'aiguille pendant son déplacement vers sa position initiale,
  • la figure 10 est une vue montrant la fixation de l'extrémité du fil obtenue après retrait de l'aiguille,
  • la figure 11 est une vue agrandie du coin de la bobine montrant la fixation de l'extrémité du fil dans les enroulements de fil.
In the appended drawings given by way of nonlimiting examples:
  • Figure 1 is a view of a spool of wire in position on the end of a conveyor belt;
  • FIG. 2 shows the coil in position on the device according to the invention,
  • FIG. 3 is an end view of the coil showing the suction nozzle and the end of the wire still far from the nozzle,
  • FIG. 4 is a view similar to FIG. 3, the end of the wire having been sucked into the nozzle,
  • FIG. 5 shows the suction nozzle in the disengaged position from the coil,
  • FIG. 6 shows the spool in the direction of its length as well as the needle which has passed through an upper corner of the spool,
  • FIG. 7 is an enlarged view of the upper corner of the spool and of the needle,
  • FIG. 8 is an end view of the spool, showing a later position of the nozzle, the thread and the needle,
  • FIG. 9 is another view of the spool, showing the needle during its displacement towards its initial position,
  • FIG. 10 is a view showing the attachment of the end of the wire obtained after withdrawal of the needle,
  • Figure 11 is an enlarged view of the corner of the spool showing the attachment of the end of the wire in the wire windings.

On va d'abord décrire le dispositif pour la mise en oeuvre du procédé selon l'invention, puis on décrira ce procédé en même temps que le fonctionnement du dispositif.We will first describe the device for implementing the method according to the invention, then we will describe this process at the same time as the operation of the device.

Sur la figure 1, on voit une bobine 1 sortant d'un bobinoir où elle a été formée. L'extrémité 2 du fil de cette bobine 1 n'est pas fixée à cette dernière et pend lâchement sur l'un des côtés de la bobine.In Figure 1, we see a coil 1 emerging from a winder where it was formed. The end 2 of the wire of this coil 1 is not fixed to the latter and hangs loosely on one of the sides of the coil.

De façon générale, le dispositif pour fixer l'extrémité 2 du fil à la bobine 1, comprend (voir figures 1 et 3)
   des moyens 3 pour amener successivement des bobines 1 sur deux supports espacés 4, 5.Generally, the device for fixing the end 2 of the wire to the coil 1, comprises (see FIGS. 1 and 3)
means 3 for successively bringing coils 1 onto two spaced supports 4, 5.

Dans la réalisation représentée sur la figure 1, les moyens 3 pour amener successivement des bobines 1 sur les deux supports espacés 4, 5 comprennent un convoyeur à bande supportant et déplaçant les bobines 1, dans le sens de l'axe X-X' de leur bobinot tubulaire.In the embodiment shown in FIG. 1, the means 3 for successively bringing coils 1 onto the two spaced supports 4, 5 comprise a belt conveyor supporting and moving the coils 1, in the direction of the axis XX 'of their bobbin tubular.

Dans cet exemple, les deux supports espacés sont constitués par deux rouleaux rotatifs 4, 5 parallèles recevant chaque bobine suivant deux génératrices de celle-ci (voir figure 3).In this example, the two spaced supports are constituted by two rotary rollers 4, 5 parallel receiving each coil according to two generators thereof (see Figure 3).

Ces deux rouleaux rotatifs 4, 5 sont reliés ensemble par une courroie ou analogue pour pouvoir tourner dans le même sens autour de leurs axes respectifs. Cette courroie est entraînée par un moteur électrique muni d'un dispositif d'inversion du sens de la rotation, de sorte que les rouleaux 4, 5 peuvent tourner soit dans un sens soit dans le sens inverse, comme on le décrira plus en détail plus loin.These two rotary rollers 4, 5 are connected together by a belt or the like to be able to rotate in the same direction around their respective axes. This belt is driven by an electric motor provided with a device for reversing the direction of rotation, so that the rollers 4, 5 can rotate either in one direction or in the opposite direction, as will be described in more detail in more detail. far.

Ainsi, la bobine 1 arrive avec son extrémité de fil pendante 2 à l'extrémité du tapis transporteur 3 (voir figure 1), après quoi elle est placée sur deux rouleaux rotatifs 4, 5 permettant de faire tourner la bobine 1 autour de son axe X-X' (voir figures 2 et 3).Thus, the coil 1 arrives with its hanging wire end 2 at the end of the conveyor belt 3 (see FIG. 1), after which it is placed on two rotating rollers 4, 5 allowing the coil 1 to rotate around its axis. XX '(see Figures 2 and 3).

Le dispositif pour fixer l'extrémité 2 du fil à la bobine 1 comprend essentiellement :

  • une buse aspirante 6 qui débouche à proximité de la bobine 1 (voir figures 3 et 4) ;
  • des rouleaux 4, 5 pour faire tourner la bobine 1 pour amener l'extrémité du fil 2 en regard de la buse aspirante 6 ;
  • un support 7 (voir figure 6) pour maintenir une aiguille 8 portant un crochet 9 à son extrémité à proximité d'un coin 10 de la bobine 1 suivant une direction D qui traverse les enroulements de fil du coin 10 (voir figure 7) et passe à proximité de la buse d'aspiration 6.
The device for fixing the end 2 of the wire to the spool 1 essentially comprises:
  • a suction nozzle 6 which opens near the coil 1 (see Figures 3 and 4);
  • rollers 4, 5 for rotating the spool 1 to bring the end of the wire 2 opposite the suction nozzle 6;
  • a support 7 (see FIG. 6) for holding a needle 8 carrying a hook 9 at its end near a corner 10 of the spool 1 in a direction D which crosses the wire windings of the corner 10 (see FIG. 7) and passes close to the suction nozzle 6.

Le support 7 comprend des moyens tels qu'un actionneur hydraulique ou pneumatique pour déplacer l'aiguille 8 dans la direction D précitée et pour la ramener vers sa position initiale dégagée de la bobine 1.The support 7 comprises means such as a hydraulic or pneumatic actuator for moving the needle 8 in the aforementioned direction D and to bring it back to its initial position released from the coil 1.

Comme on le voit sur les figures 2 à 8, la buse aspirante 6 débouche sur la partie supérieure de la bobine 1 et l'aiguille 8 est placée près d'un coin supérieur 10 de cette bobine 1.As can be seen in FIGS. 2 to 8, the suction nozzle 6 opens onto the upper part of the coil 1 and the needle 8 is placed near an upper corner 10 of this coil 1.

Par ailleurs, comme montré sur la figure 6, la buse 6 comporte une lente d'aspiration 11 parallèle à l'axe X-X' de la bobine 1 et s'étendant sensiblement sur toute la longueur de celle-ci.Furthermore, as shown in FIG. 6, the nozzle 6 comprises a slow suction 11 parallel to the axis XX ′ of the coil 1 and extending substantially over the entire length of the latter.

De plus, la buse 6 est montée pivotante sur un axe Y-Y' parallèle à celui de la bobine 1 entre une position (voir figure 5) où son ouverture d'aspiration 11 est espacée de la bobine 1 et une position (voir figures 3, 4 et 8) où cette ouverture 11 est sensiblement en contact avec la bobine 1.In addition, the nozzle 6 is pivotally mounted on an axis YY 'parallel to that of the coil 1 between a position (see FIG. 5) where its suction opening 11 is spaced from the coil 1 and a position (see FIGS. 3, 4 and 8) where this opening 11 is substantially in contact with the coil 1.

Comme montré sur les figures 6, 7 et 8, la direction D de déplacement de l'aiguille 8 passe légèrement sous l'extrémité du fil 2 maintenue dans la buse d'aspiration 6 lorsque celle-ci est espacée de la bobine 1.As shown in FIGS. 6, 7 and 8, the direction D of movement of the needle 8 passes slightly under the end of the wire 2 held in the suction nozzle 6 when the latter is spaced from the coil 1.

De plus, on voit que le crochet 9 de l'aiguille 8 est orienté vers le haut.In addition, it can be seen that the hook 9 of the needle 8 is oriented upwards.

Par ailleurs, lorsque l'ouverture 11 de la buse d'aspiration 6 est sensiblement en contact avec la bobine 1 (voir figure 8), l'extrémité du fil 2 maintenue dans cette buse 6 prend appui sur l'aiguille 8.Furthermore, when the opening 11 of the suction nozzle 6 is substantially in contact with the coil 1 (see FIG. 8), the end of the wire 2 held in this nozzle 6 is supported on the needle 8.

D'autre part, la buse d'aspiration 6 renferme un capteur 12 sensible à la présence de l'extrémité du fil 2 à l'intérieur de cette buse. Ce capteur 12 est adapté pour commander l'arrêt de la rotation de la bobine 1, dans les positions représentées sur les figures 4 à 6 et 8, 9.On the other hand, the suction nozzle 6 contains a sensor 12 sensitive to the presence of the end of the wire 2 inside this nozzle. This sensor 12 is suitable for controlling the stopping of the rotation of the coil 1, in the positions shown in FIGS. 4 to 6 and 8, 9.

En outre, le support 7 de l'aiguille 8 comprend des moyens (voir flèche F de la figure 9) pour faire tourner l'aiguille 8 d'un quart de tour sur son axe, lors du déplacement de celle-ci vers sa position initiale.In addition, the support 7 of the needle 8 comprises means (see arrow F in FIG. 9) for rotating the needle 8 by a quarter of a turn on its axis, when the latter moves towards its position. initial.

On va maintenant décrire le fonctionnement du dispositif ci-dessus.We will now describe the operation of the above device.

Dans sa position initiale, la buse 6 est sensiblement en contact avec la partie supérieure de la bobine 1, comme indiqué sur la figure 3 et l'aiguille 8 est en retrait.In its initial position, the nozzle 6 is substantially in contact with the upper part of the coil 1, as indicated in FIG. 3 and the needle 8 is recessed.

La bobine 1 étant en position sur les rouleaux 4, 5, on la fait tourner pour entraîner en rotation la bobine 1 (voir figure 3) pour rapprocher l'extrémité du fil 2 de la buse d'aspiration 6.The coil 1 being in position on the rollers 4, 5, it is rotated to rotate the coil 1 (see Figure 3) to bring the end of the wire 2 closer to the suction nozzle 6.

Lorsque l'extrémité du fil 2 arrive en regard de la buse 6, celle-ci l'aspire en son intérieur (voir figure 4). Le capteur 12 détecte la présence du fil 2 et commande l'arrêt de la rotation de la bobine 1 qui reste ainsi immobile pour la suite des opérations.When the end of the wire 2 comes opposite the nozzle 6, the latter sucks it inside (see FIG. 4). The sensor 12 detects the presence of the wire 2 and controls the stopping of the rotation of the coil 1 which thus remains stationary for the rest of the operations.

On fait ensuite pivoter (voir figure 5), à l'aide d'un actionneur non représenté, la buse 6 dans la position espacée de la bobine 1 représentée sur la figure 5, qui a pour effet de soulever l'extrémité du fil 2 de la bobine 1.Then rotated (see Figure 5), using an actuator not shown, the nozzle 6 in the spaced position of the coil 1 shown in Figure 5, which has the effect of lifting the end of the wire 2 coil 1.

Dans une étape ultérieure (voir figure 6), on commande le déplacement de l'aiguille 8 vers un coin supérieur 10 de la bobine 1. L'aiguille 8 traverse le coin 10 et son crochet 9 fait saillie sur le dessus de la bobine, en passant sous le fil 2.In a subsequent step (see FIG. 6), the needle 8 is moved to an upper corner 10 of the coil 1. The needle 8 crosses the corner 10 and its hook 9 projects from the top of the coil, passing under wire 2.

On commande alors le pivotement de la buse 6 (voir figure 8) vers la bobine 1, ce qui a pour effet d'appliquer le fil 2 sur l'aiguille 8.The pivoting of the nozzle 6 (see FIG. 8) is then controlled towards the coil 1, which has the effect of applying the wire 2 to the needle 8.

On commande ensuite le déplacement de l'aiguille 8 vers sa position initiale (voir figure 9). Le crochet 9 de l'aiguille 8 vient en prise avec le fil 2 (voir figure 7). L'aiguille 8 tire par conséquent le fil vers l'arrière.Then the needle 8 is moved to its initial position (see FIG. 9). The hook 9 of the needle 8 engages the thread 2 (see figure 7). The needle 8 therefore pulls the thread backwards.

Avant que le fil 2 ne s'engage dans la bobine 1, on fait tourner l'aiguille 8 d'un quart de tour sur elle-même (voir flèche F sur la figure 9), ce qui permet de verrouiller le fil par rapport à l'aiguille 8.Before the thread 2 engages in the spool 1, the needle 8 is made to turn a quarter of a turn on itself (see arrow F in FIG. 9), which allows the thread to be locked relative to needle 8.

Lors de sa course ultérieure, l'aiguille 8 tire le fil 2 entre les enroulements du fil dans le coin 10 de la bobine afin de le retenir prisonnier dans ce coin 10, comme montré sur les figures 10 et 11.During its subsequent stroke, the needle 8 pulls the wire 2 between the windings of the wire in the corner 10 of the spool in order to hold it captive in this corner 10, as shown in FIGS. 10 and 11.

Le dispositif et le procédé que l'on vient de décrire permettent par conséquent de fixer efficacement l'extrémité du fil 2 à la bobine, sans l'utilisation d'une étiquette susceptible d'être arrachée lors des manipulations.The device and the method which have just been described therefore make it possible to effectively fix the end of the wire 2 to the coil, without the use of a label capable of being torn off during handling.

Bien entendu, les bobines peuvent faire l'objet ensuite d'un étiquetage ou d'un marquage n'ayant aucune fonction de fixation du fil.Of course, the coils can then be subject to labeling or marking having no function of fixing the wire.

La buse 6 pourrait comporter un doigt mobile dans la fente 11 pour déplacer le fil 2 vers l'aiguille 8.The nozzle 6 could include a movable finger in the slot 11 to move the wire 2 towards the needle 8.

Par ailleurs, le dispositif pourrait être complété par un dispositif pour couper automatiquement l'extrémité du fil 2 faisant saillie de la bobine et/ou par un dispositif pour réaliser un noeud dans ladite extrémité.Furthermore, the device could be completed by a device for automatically cutting the end of the wire 2 projecting from the coil and / or by a device for making a knot in said end.

Claims (5)

  1. Method for fastening an end of a yarn (2), wound on a bobbin (1), wherein :
    a) the bobbin is placed on two spaced supports (4, 5), receiving the bobbin along two generator-lines of this latter ;
    b) a partial vacuum is created by means of a suction nozzle (6), substancially in contact with the bobbin (1), the partial vacuum being sufficient to suck the non-fastened yarn end ;
    c) the bobbin (1) is caused to rotate on the spaced supports (4, 5), in order to bring the end of the yarn (2) to the suction nozzle characterized in that, after step (c),
    - the rotation of the bobbin (1) is caused to stop when a detector (12) detects the presence of the yarn (2) in the suction nozzle (6)
    - the suction nozzle (6) is caused to move in a position spaced from the bobbin (1)
    - a needle (8) provided with an end-hook (9) is inserted in the yarn windings of a corner (10) of the bobbin in the direction of the end of the yarn (2) which is engaged in the nozzle and transversely to said yarn end, said hook (9) projecting from the top face of the bobbin by passing beneath the yarn (2)
    - the suction nozzle (6) is caused to move towards the bobbin (1) to apply the yarn (2) against the needle (8) and to engage the end of the yarn (2) into the hook (9) of the needle (8) ; and
    - the needle (8) is caused to rotate about its axis by one-quarter of a revolution and
    - the needle (8) is withdrawn from the bobbin in order to engage the end of the yarn (2) between the yarn windings of said corner (10) of the bobbin.
  2. Device for carrying out the method according to claim 1, comprising :
    - a suction nozzle (6) which opens in proximity to a yarn bobbin (1) ;
    - two spaced supports (4, 5) receiving the bobbin along two generator lines of this latter and capable of causing rotation of the bobbin (1) in order to bring the yarn end opposite to the suction nozzle (6), characterized by
    - a detector (12) stopping the rotation of the bobbin (1) when it detects the presence of the yarn (2) in the suction nozzle (6)
    - a support (7) so arranged that a needle (8) which carries an end hook (9) is maintained by said support in proximity to a corner (10) of the bobbin in a direction (D) which passes through the yarn windings of said corner (10) and passes in proximity to the suction nozzle (6), said support (7) being provided with means for displacing the needle (8) in the aforementioned direction and for returning it to its initial position, wherein the suction nozzle is movable between a position in which a suction opening (11) is spaced from the bobbin and a position in which said suction opening (11) is substancially in contact with the bobbin, wherein the direction (D) of displacement of the needle (8) passes slightly beneath the yarn (2) end maintained within the suction nozzle (6) when this latter is spaced from the bobbin (1), wherein the hook (9) of the needle (8) is oriented in the upward direction, in that, when the suction opening (11) of suction nozzle (6) is substantially in contact with the bobbin (1), the end of the yarn (2) which is maintained within said suction nozzle (6) is applied against the needle (8), and in that the support (7) of the needle (8) comprises means for causing the needle (8) to rotate about its axis by one-quarter of a revolution at the time of displacement of this needle towards its initial position.
  3. Device according to claim 2, characterized in that the suction nozzle (6) opens on the top portion of the bobbin (1) and the needle (8) is placed near a top corner (10) of said bobbin.
  4. Device according to claim 2 or 3, characterized in that the suction opening (11) is parallel to the axis (X-X') of the bobbin and extends substancially over the entire length of this latter.
  5. Device according to any of claims 2-4, characterized in that the suction nozzle (6) is mounted so as to be capable of pivoting about an axis (Y-Y') parallel to that of the bobbin (1) between said position in which its suction opening (11) is spaced from the bobbin and said position in which said suction opening (11) is substancially in contact with the bobbin.
EP92400404A 1991-02-22 1992-02-14 Method and device for securing the yarn end of a bobbin Expired - Lifetime EP0500433B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1992607023 DE69207023T2 (en) 1992-02-14 1992-02-14 Method and device for fastening the thread end of a bobbin

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9102142A FR2673171B1 (en) 1991-02-22 1991-02-22 METHOD AND DEVICE FOR FIXING THE END OF THE WIRE OF A COIL.
US07/932,566 US5332170A (en) 1991-02-22 1992-08-20 Method and device for fastening the yarn end of a bobbin

Publications (2)

Publication Number Publication Date
EP0500433A1 EP0500433A1 (en) 1992-08-26
EP0500433B1 true EP0500433B1 (en) 1995-12-27

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Application Number Title Priority Date Filing Date
EP92400404A Expired - Lifetime EP0500433B1 (en) 1991-02-22 1992-02-14 Method and device for securing the yarn end of a bobbin

Country Status (3)

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US (1) US5332170A (en)
EP (1) EP0500433B1 (en)
FR (1) FR2673171B1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995015907A1 (en) * 1993-12-09 1995-06-15 Barmag Ag Process and device for marking the end of a thread wound on a spool and device for implementing it
US5560558A (en) * 1995-04-12 1996-10-01 E. I. Du Pont De Nemours And Company Spandex supply package
US6484961B2 (en) 1999-12-29 2002-11-26 Superba Machine for tucking, labelling and palletizing spools at the outlet of a winder or any other machine producing spools of thread and process practiced by this machine
US6964437B2 (en) * 2001-12-14 2005-11-15 Superba (Societa Anonyme) Process and device for knotting a yarn on a spool
CN108726268A (en) * 2018-06-27 2018-11-02 苏州江锦自动化科技有限公司 Full-automatic steel wire rope winds packaging system and its method
ES2872075T3 (en) * 2018-07-17 2021-11-02 Starlinger & Co Gmbh Tape winding device

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DD79245A (en) *
DE79245C (en) * W. H. UH-LAND, Leipzig-Gohlis, Lindenstr. 13 Channel drying system
US3595491A (en) * 1969-11-17 1971-07-27 American & Efird Thread Mills Method and apparatus for securing the end or tail of a textile strand to a wound package
JPS4818131B1 (en) * 1970-01-23 1973-06-04
US3652025A (en) * 1970-02-02 1972-03-28 Leesona Corp Bobbin processing
DE2442471C3 (en) * 1974-09-05 1978-08-03 Hacoba Textilmaschinen Gmbh & Co Kg, 5600 Wuppertal Device for fixing the beginning thread end of thread bobbins on automatic winding devices
DE2506930A1 (en) * 1975-02-19 1976-09-09 Schlafhorst & Co W METHOD FOR FORMATION OF A THREAD RESERVE FROM THE THREAD END OF A TEXTILE SPOOL AND DEVICE FOR CARRYING OUT THE METHOD
DE2536991A1 (en) * 1975-08-20 1977-03-03 Schlafhorst & Co W DEVICE FOR ADJUSTING A REVERSE ROTATION OF A REEL
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JPS5882958A (en) * 1981-11-13 1983-05-18 Fujikura Ltd Method and apparatus of continuously winding up filament
US4848077A (en) * 1987-04-07 1989-07-18 Murata Kikai Kabushiki Kaisha Package feeding method and apparatus
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DE4009702C2 (en) * 1990-03-27 2000-04-13 Schlafhorst & Co W Method and device for releasing and preparing the thread end of a textile bobbin

Also Published As

Publication number Publication date
FR2673171A1 (en) 1992-08-28
FR2673171B1 (en) 1993-04-09
US5332170A (en) 1994-07-26
EP0500433A1 (en) 1992-08-26

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