EP1611043A2 - Device for positioning and removing thread bobbins in a textile machine - Google Patents

Device for positioning and removing thread bobbins in a textile machine

Info

Publication number
EP1611043A2
EP1611043A2 EP04742402A EP04742402A EP1611043A2 EP 1611043 A2 EP1611043 A2 EP 1611043A2 EP 04742402 A EP04742402 A EP 04742402A EP 04742402 A EP04742402 A EP 04742402A EP 1611043 A2 EP1611043 A2 EP 1611043A2
Authority
EP
European Patent Office
Prior art keywords
coil
gripping
tabular
support
fork
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.)
Granted
Application number
EP04742402A
Other languages
German (de)
French (fr)
Other versions
EP1611043B1 (en
Inventor
Geoffrey Naylor
Xavier Ayrault
Philippe Flechon
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.)
RITM
Original Assignee
Rieter Textile Machinery France SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rieter Textile Machinery France SA filed Critical Rieter Textile Machinery France SA
Publication of EP1611043A2 publication Critical patent/EP1611043A2/en
Application granted granted Critical
Publication of EP1611043B1 publication Critical patent/EP1611043B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
    • B65H67/04—Arrangements for removing completed take-up packages and or replacing by cores, formers, or empty receptacles at winding or depositing stations; Transferring material between adjacent full and empty take-up elements
    • B65H67/0405—Arrangements for removing completed take-up packages or for loading an empty core
    • 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 invention relates to the technical sector of textile machines, in particular excavation operations.
  • the invention finds in particular an application in the field of textile machines, wiring, twisting of threads, texturing, and more generally of thread transformation.
  • the problem in this type of textile machinery is notably to be able to remove and unload the tabular supports on which the spools of thread are formed with a view to replacing them with empty tabular supports and relaunching the production of a new spool.
  • Patent GB 1024615 of 1963, discloses by way of example, a device intended to be integrated into a winder, the principle of which foreshadows that still used today. This device is individual, that is to say, integrated into each winding position.
  • US Patent 3344594 of 1964, discloses a means of performing the function for machines having an alignment of working positions arranged side by side, such as wiring machines, twisting or textaration. It is a mobile robot moving along the machine, capable of positioning opposite caving positions, and embedding means such as arms, grippers, at locations containing empty tubes, controlled by an automaton, and therefore capable of carrying out the digging operation.
  • the invention relates to a textile machine of the type comprising that, in a manner perfectly known to a person skilled in the art, at least one motorized receiving cylinder (R) of thread (F) subject to a reciprocating system (V) for the formation of a coil (B) on a rotating tubular support (S), mounted in gripping and positioning means (P) usually called “fork” by the skilled person.
  • the empty tabular supports are pre-positioned in a distributor magazine (M).
  • the finished coils (B) are discharged by a ramp (Ra) or other means.
  • FIGS. 1, 2, 3 and 4 showing an example of a device and a known principle of operation of this type of machine for the digging operation.
  • the coil (B) is finished, the wire (F) is cut in a suction (figure 1). Then, the coil (B) is released from the receiving cylinder (R) by displacement or rotation of the fork (P), to be braked and released, for example, on the discharge ramp (Ra) located on the side opposite to the arrival of the wire (F) (figure 2)
  • the handling of the coil (B) is carried out by the means (P). After release, the coil (B) rolls by gravity to the bottom of the discharge ramp (Ra) to be recovered later.
  • the distributor of tabular supports (M) then pivots to place another tabular support in the fork which therefore has gripping and positioning means (P) ( Figure 3).
  • the fork (P) applies, by displacement or rotation, again the tabular support (S) against the receiving roller (R), for another winding operation.
  • the distributor (M) returns to its initial position ( Figure 4).
  • the tube distribution magazine and the fork constituting the gripping and positioning means constitute two mobile assemblies which it is necessary to align perfectly when transferring an empty tube, so that the adjustments are difficult.
  • a third drawback is that, according to the state of the art, the positioning of the fork under the effect of the change in the diameter of the coil, creates a variation in forces which it is necessary to compensate for. using control means that are difficult to adjust.
  • a fourth drawback resides in the fact that when the coil is deposited in its discharge means, in the form of a ramp or the like, it tends to systematically cross. Indeed, the coils tend to slide asymmetrically since they generally have a straight edge and a rounded edge, which tends to accentuate the sliding relative to the straight edge, causing a pivoting effect. Thus when the evacuation means is constituted by a ramp, the coil cannot roll to the bottom of the ramp.
  • the object of the invention is to remedy these various drawbacks in a simple, safe, efficient and rational manner.
  • One of the problems which the invention proposes to solve is therefore to allow the end of the wire to be wound when the reel is placed on the discharge means.
  • a winding device has been designed and developed, equipped with means for placing and removing spools of thread in a machine of the type described above and according to which the receiving cylinder and the tabular support in the winding position are positioned in space, according to a defined direction of rotation, so that the wire reaches the point of contact passing under the receiving cylinder, and is wound over the tabular support, and the formation of the coil and its release movement towards the discharge means are in a direction opposite to the arrival of the wire.
  • the winding direction is such that the coil thread tends to wind when the coil rolls on said discharge ramp.
  • the other problem which the invention proposes to solve is to facilitate the adjustments of the positioning of the means for distributing the empty tabular supports with respect to the means for gripping and positioning of said supports for the transfer operation.
  • the invention provides an arrangement in which this means of distribution is fixed.
  • the fork constituting the means for gripping and positioning the tabular support is positioned in space and articulated, so that the movement of the support, due to the magnification of the coil during formation, then its release to the point where it is deposited on the evacuation means, then its displacement to the point of gripping of a new empty tube in the distribution device, is arranged on the same simple path, preferably circular, and in that order.
  • the return of the empty tube, from the distributor to the point of contact on the receiving cylinder takes place along the same path in the opposite direction, the full coil deposited on the outward journey being, in the meantime, discharged .
  • the other problem which the invention proposes to solve is to perfectly control the contact force between the coil in formation and the receiving cylinder must be perfectly controlled to obtain a quality winding.
  • the support thereof is in a position close to the vertical, that is to say that the point of rotation of the fork constituting gripper and gripper of the coil, is located substantially above the center of gravity of said coil.
  • the present invention provides a means of solving the problem which consists in ensuring that the full reel is completely removed without risk of jamming.
  • the fork constituting the means for gripping and positioning the reel is equipped with means intended to retain the tube, when it is released, then to accompany it at the start of its movement of evacuation during rotation of said fork to the gripping point of a new empty tube to the distribution system.
  • the fork rotates to the point of depositing the reel towards the discharge means, and releases the reel at this point. Then, continuing its rotation towards the distribution system of the empty tubes, the fork retains and then accompanies, by means of appendages arranged for this purpose, the coil during its evacuation. This action has the effect of realigning the tube with respect to the ramp and giving the coil an initial speed sufficient for it to be evacuated without being braked by friction.
  • the reel can be removed, either by marking a stopping time in the movement of the fork, or without stopping time, that is to say in the continuity of its movement.
  • FIG. 5 is a view showing the main elements of the device for placing and removing spools of thread, according to the characteristics of the invention in an application to a textile machine.
  • FIGS 6, 7, 8 and 9 are schematic views of different phases of the digging principle according to the invention.
  • the textile machine illustrated, FIG. 5, is of the type comprising that, in known manner, at least one cylinder (1) for receiving the thread (2) subjected to a reciprocating system (3) for forming the spool ( B) on a tabular support (4).
  • the tabular support (4) is rotatably mounted in articulated gripping and positioning means, constituted in particular by pivoting arms ( 5), forming a fork.
  • the empty tabular supports (4) are mounted in a device (6) acting as a distributor.
  • the coils (B) are evacuated by means of at least one ramp (7) inclined in the downward direction, from substantially the winding zone. Note that the coils can be removed by other means.
  • the motorized receiving cylinder (1) is positioned in front of the tabular support (4) in the position of winding.
  • the reel (B) is formed at the rear of the cylinder (1), relative to the arrival of the wire.
  • the wire (2) arrives from below the receiving cylinder (1).
  • the direction of rotation of the coil (B) is opposite to that of the conventional arrangement indicated in the introductory part of the description and illustrated in FIGS. 1, 2, 3, and 4.
  • the distributor magazine (6) of the tabular elements (4) is fixed, and positioned angularly above the winding zone.
  • the fork (5) is arranged to continue its movement and come to grip a tabular support (4) in the distribution store (6) ( Figure 8).
  • the fork then pivots in the opposite direction to position the empty tube at the winding area, behind the receiving cylinder (1) ( Figure 9).
  • the winding process can then resume, thanks to the transfer of the wire from the suction nozzle to the empty tube.
  • the ends of the arms are arranged in the form of clamps (9) to free the tabular support elements (4) at will after the winding operation.
  • appendages (10) are mounted at the end of the gripping arms to straighten and align the spool when it is released at the level of the evacuation ramp. These appendages (10) tend to retain and then accompany the support element (4) receiving the coil during the pivoting of the fork (5) in the direction of the distributor magazine (6) in order to grasp a tubular element again, so that the 'the entire reel does not tend to get across the discharge ramp (7), and is animated with an initial speed sufficient to ensure complete descent.
  • the pivot axis (11) of the arms (5) is located above the receiving cylinder (1) and the discharge ramp (7).
  • the arms (5) pivot according to the arrow (F) to grasp the tabular elements (4) positioned in the magazine (6) and according to the arrow (FI) to position the tubular element grasped at the winding zone .
  • FIGS. 6, 7, 8 and 9 show the main operating phases of the device according to the invention.

Abstract

The bobbin placer and lifter consists of at least one yarn receiving cylinder (1) linked to a reciprocating mechanism (3) for winding the yarn bobbin (B) on a tubular support (4) retained by a holder and positioner (5), a dispenser (6) for the supports and a discharger (7) for the filled bobbins. The receiving cylinder and support tube are positioned for winding so they rotate with the yarn (2) passing under the receiving cylinder and over the support tube, and that the latter moves towards the discharger in a direction opposite to that in which the yarn arrives. The support dispenser is fixed, while the discharger is in the form of a ramp with the wound bobbin tending to roll down it when released. The holder is in the form of pivoted arms with forked ends (9, 10) that move as the size of the wound bobbin increases, releasing the bobbin on the discharger and picking up a new one as it travels in a circular trajectory.

Description

Dispositif pour la mise en place et l'enlèvement de bobines de fil dans une machine textile. Device for placing and removing spools of thread in a textile machine.
L'invention se rattache au secteur technique des machines textiles notamment des opérations de cavage.The invention relates to the technical sector of textile machines, in particular excavation operations.
Plus particulièrement, l'invention trouve notamment une application dans le domaine des machines textiles, de câblage, de retordage de fils, de texturation, et plus généralement de transformation des fils.More particularly, the invention finds in particular an application in the field of textile machines, wiring, twisting of threads, texturing, and more generally of thread transformation.
Le problème, dans ce type de machines textiles, est notamment de pouvoir enlever et décharger les supports tabulaires sur lesquels sont formées les bobines de fils en vue de les remplacer par des supports tabulaires vides et relancer la production d'une nouvelle bobine.The problem in this type of textile machinery is notably to be able to remove and unload the tabular supports on which the spools of thread are formed with a view to replacing them with empty tabular supports and relaunching the production of a new spool.
Ces opérations sont usuellement appelées « cavage » par l'homme de métier. Elles consistent à interrompre le processus d'enroulement du fil sur la bobine ayant atteint le poids ou le métrage désiré, à freiner puis à évacuer cette bobine pleine, à la remplacer par un tube vide, puis relancer le processus d'enroulement. Cette séquence est traditionnellement réalisée manuellement mais est de plus en plus réalisée de manière automatique ou semi-automatique.These operations are usually called "digging" by those skilled in the art. They consist in interrupting the process of winding the wire on the spool having reached the desired weight or yardage, in braking then evacuating this full spool, replacing it with an empty tube, then restarting the winding process. This sequence is traditionally performed manually but is increasingly performed automatically or semi-automatically.
De nombreuses solutions techniques ont été proposées. Les premiers systèmes automatiques ont été développés, il y a plus de 50 ans pour le bobinage de fils naturels ou synthétiques, notamment pour les procédés de filature. Le brevet GB 1024615, de 1963, divulgue à titre d'exemple, un dispositif destiné à être intégré dans un bobineur, dont le principe préfigure celui encore utilisé aujourd'hui. Ce dispositif est individuel, c'est-à-dire, intégré à chaque position de bobinage. Le brevet US 3344594, de 1964, divulgue un moyen de réaliser la fonction pour les machines présentant un alignement de positions de travail disposées côte à côte, telles que les machines de câblage, retordage ou textaration. Il s'agit d'un robot mobile se déplaçant le long de la machine, capable de se positionner en vis à vis des positions à caver, et embarquant des moyens tels que des bras, des préhenseurs, à des emplacements contenant des tubes vides, pilotés par un automate, et donc capable de réaliser l'opération de cavage.Many technical solutions have been proposed. The first automatic systems were developed over 50 years ago for the winding of natural or synthetic yarns, especially for spinning processes. Patent GB 1024615, of 1963, discloses by way of example, a device intended to be integrated into a winder, the principle of which foreshadows that still used today. This device is individual, that is to say, integrated into each winding position. US Patent 3344594, of 1964, discloses a means of performing the function for machines having an alignment of working positions arranged side by side, such as wiring machines, twisting or textaration. It is a mobile robot moving along the machine, capable of positioning opposite caving positions, and embedding means such as arms, grippers, at locations containing empty tubes, controlled by an automaton, and therefore capable of carrying out the digging operation.
Les progrès de la technologie et la miniaturisation ont permis, dans les années 1990, de concevoir des machines présentant un alignement de positions, chacune étant équipée d'un dispositif individuel de cavage.Advances in technology and miniaturization made it possible, in the 1990s, to design machines with an alignment of positions, each being equipped with an individual digging device.
Plus particulièrement l'invention concerne une machine textile du type de celle comprenant, d'une manière parfaitement connue pour un homme du métier, au moins un cylindre de réception motorisé(R) de fil (F) assujetti à un système de va et vient (V) pour la formation d'une bobine (B) sur un support tubulaire tournant (S), monté dans des moyens de préhension et de positionnement (P) usuellement appelé « fourche » par l'homme de métier. Les supports tabulaires vides sont pré-positionnés dans un magasin distributeur (M). Les bobines finies (B) sont évacuées par une rampe (Ra) ou autre moyens. On renvoie aux figures 1, 2, 3 et 4 montrant un exemple de dispositif et un principe connu de fonctionnement de ce type de machines pour l'opération de cavage.More particularly, the invention relates to a textile machine of the type comprising that, in a manner perfectly known to a person skilled in the art, at least one motorized receiving cylinder (R) of thread (F) subject to a reciprocating system (V) for the formation of a coil (B) on a rotating tubular support (S), mounted in gripping and positioning means (P) usually called "fork" by the skilled person. The empty tabular supports are pre-positioned in a distributor magazine (M). The finished coils (B) are discharged by a ramp (Ra) or other means. Reference is made to FIGS. 1, 2, 3 and 4 showing an example of a device and a known principle of operation of this type of machine for the digging operation.
Le fil (F), assujetti au système de va et vient (V), passe sur le cylindre de réception (R) pour être enroulé sur le support tabulaire (S) monté dans les moyens de préhension et de positionnement (P).The wire (F), subject to the back and forth system (V), passes over the receiving cylinder (R) to be wound on the tabular support (S) mounted in the gripping and positioning means (P).
Au moment du cavage, lorsque la bobine (B) est terminée, le fil (F) est coupé dans une aspiration (figure 1). Puis, la bobine (B) est dégagée du cylindre de réception (R) par déplacement ou rotation de la fourche (P), pour être freinée et libérée, par exemple, sur la rampe d'évacuation (Ra) située du côté opposé à l'arrivée du fil (F) (figure 2)At the time of the digging, when the coil (B) is finished, the wire (F) is cut in a suction (figure 1). Then, the coil (B) is released from the receiving cylinder (R) by displacement or rotation of the fork (P), to be braked and released, for example, on the discharge ramp (Ra) located on the side opposite to the arrival of the wire (F) (figure 2)
La manipulation de la bobine (B) s'effectue par les moyens (P). Après libération, la bobine (B) roule par gravité jusqu'au bas de la rampe d'évacuation (Ra) pour y être récupérée ultérieurement. Le distributeur de supports tabulaires (M) pivote alors pour placer un autre support tabulaire dans la fourche qui présente donc des moyens de préhension et de positionnement (P) (figure 3). La fourche (P) applique, par déplacement ou rotation, de nouveau le support tabulaire (S) contre le rouleau de réception (R), pour une autre opération de bobinage. Le distributeur (M) reprend sa position initiale (figure 4).The handling of the coil (B) is carried out by the means (P). After release, the coil (B) rolls by gravity to the bottom of the discharge ramp (Ra) to be recovered later. The distributor of tabular supports (M) then pivots to place another tabular support in the fork which therefore has gripping and positioning means (P) (Figure 3). The fork (P) applies, by displacement or rotation, again the tabular support (S) against the receiving roller (R), for another winding operation. The distributor (M) returns to its initial position (Figure 4).
Cette solution technique, donnée à titre d'exemple, peut présenter de nombreuses variantes qui reposent toutes sur un principe similaire, lequel ne donne pas totalement satisfaction.This technical solution, given by way of example, can have many variants which are all based on a similar principle, which is not entirely satisfactory.
Selon un premier inconvénient, dans le cas notamment où le moyen d'évacuation est une rampe sur laquelle la bobine roule, il apparaît qu'au moment de l'évacuation, le sens de rotation de la bobine, en descendant la rampe, a tendance à la faire se dévider.According to a first drawback, in the case in particular where the evacuation means is a ramp on which the coil rolls, it appears that at the time of evacuation, the direction of rotation of the reel, down the ramp, tends to make it unwind.
Selon un second inconvénient, le magasin de distribution de tubes et la fourche constituant les moyens de préhension et de positionnement, constituent deux ensembles mobiles qu'il est nécessaire d'aligner parfaitement au moment du transfert d'un tube vide, de sorte que les réglages sont difficiles à réaliser.According to a second drawback, the tube distribution magazine and the fork constituting the gripping and positioning means constitute two mobile assemblies which it is necessary to align perfectly when transferring an empty tube, so that the adjustments are difficult.
Un troisième inconvénient se trouve dans le fait que selon l'état de la technique, le positionnement de la fourche sous l'effet de l'évolution du diamètre de la bobine, crée une variation d'efforts qu'il est nécessaire de compenser en faisant appel à des moyens de contrôle difficiles à régler.A third drawback is that, according to the state of the art, the positioning of the fork under the effect of the change in the diameter of the coil, creates a variation in forces which it is necessary to compensate for. using control means that are difficult to adjust.
Enfin, un quatrième inconvénient réside dans le fait que lorsque l'on dépose la bobine dans son moyen d'évacuation, sous forme d'une rampe ou autre, celle-ci à tendance à se mettre systématiquement en travers. En effet, les bobines ont tendance à glisser de façon asymétrique étant donné que généralement elles présentent un bord droit et un bord arrondi, ce qui a tendance à accentuer le glissement par rapport au bord droit, provoquant un effet de pivotement. Ainsi lorsque le moyen d'évacuation est constituée par une rampe, la bobine ne peut pas rouler jusqu'au bas de la rampe.Finally, a fourth drawback resides in the fact that when the coil is deposited in its discharge means, in the form of a ramp or the like, it tends to systematically cross. Indeed, the coils tend to slide asymmetrically since they generally have a straight edge and a rounded edge, which tends to accentuate the sliding relative to the straight edge, causing a pivoting effect. Thus when the evacuation means is constituted by a ramp, the coil cannot roll to the bottom of the ramp.
L'invention s'est fixée pour but de remédier à ces différents inconvénients de manière simple, sûre, efficace et rationnelle. Un des problèmes que se propose de résoudre l'invention est donc de permettre à l'extrémité du fil de s'enrouler lorsque la bobine est disposée sur le moyen d'évacuation.The object of the invention is to remedy these various drawbacks in a simple, safe, efficient and rational manner. One of the problems which the invention proposes to solve is therefore to allow the end of the wire to be wound when the reel is placed on the discharge means.
Pour résoudre un tel problème, il a été conçu et mis au point un dispositif de bobinage, équipé de moyens pour la mise en place et l'enlèvement de bobines de fils dans une machine du type de celle décrite ci-dessus et selon lequel le cylindre de réception et le support tabulaire en position de bobinage sont positionnés dans l'espace, selon un sens de rotation défini, pour que le fil aborde le point de contact en passant par dessous le cylindre de réception, et s'enroule par dessus le support tabulaire, et que la formation de la bobine et son mouvement de dégagement vers le moyen d'évacuation soient dans une direction opposée à l'arrivée du fil.To solve such a problem, a winding device has been designed and developed, equipped with means for placing and removing spools of thread in a machine of the type described above and according to which the receiving cylinder and the tabular support in the winding position are positioned in space, according to a defined direction of rotation, so that the wire reaches the point of contact passing under the receiving cylinder, and is wound over the tabular support, and the formation of the coil and its release movement towards the discharge means are in a direction opposite to the arrival of the wire.
Lorsque le moyen d'évacuation est une rampe sur laquelle roule la bobine, le sens d'enroulement est tel que le fil de la bobine a tendance à s'enrouler lorsque la bobine roule sur ladite rampe d'évacuation.When the discharge means is a ramp on which the coil rolls, the winding direction is such that the coil thread tends to wind when the coil rolls on said discharge ramp.
A noter que la rampe peut être remplacée par d'autres moyens d'évacuation.Note that the ramp can be replaced by other means of evacuation.
L'autre problème que se propose de résoudre l'invention, est de faciliter les réglages du positionnement des moyens de distribution des supports tabulaires vides par rapport aux moyens de préhension et de positionnement desdits supports pour l'opération de transfert. Pour cela, l'invention propose un arrangement dans lequel ce moyen de distribution est fixe. Dans ce but, selon l'invention, la fourche constituant le moyen de préhension et de positionnement du support tabulaire, est positionnée dans l'espace et articulée, de sorte que le déplacement du support, du fait du grossissement de la bobine en cours de formation, puis son dégagement jusqu'au point où elle est déposée sur le moyen d'évacuation, puis son déplacement jusqu'au point de préhension d'un nouveau tube vide dans le dispositif de distribution, soit disposé sur une même trajectoire simple, de préférence circulaire, et dans cet ordre. Le retour du tube vide, depuis le distributeur jusqu'au point de contact sur le cylindre de réception, s'effectue selon la même trajectoire en sens inverse, la bobine pleine déposée à l'aller étant, dans l'intervalle de temps, évacuée.The other problem which the invention proposes to solve is to facilitate the adjustments of the positioning of the means for distributing the empty tabular supports with respect to the means for gripping and positioning of said supports for the transfer operation. For this, the invention provides an arrangement in which this means of distribution is fixed. For this purpose, according to the invention, the fork constituting the means for gripping and positioning the tabular support, is positioned in space and articulated, so that the movement of the support, due to the magnification of the coil during formation, then its release to the point where it is deposited on the evacuation means, then its displacement to the point of gripping of a new empty tube in the distribution device, is arranged on the same simple path, preferably circular, and in that order. The return of the empty tube, from the distributor to the point of contact on the receiving cylinder, takes place along the same path in the opposite direction, the full coil deposited on the outward journey being, in the meantime, discharged .
L'autre problème que se propose de résoudre l'invention est de parfaitement contrôler la force de contact entre la bobine en formation et le cylindre de réception doit être parfaitement contrôlé pour obtenir un enroulement de qualité.The other problem which the invention proposes to solve is to perfectly control the contact force between the coil in formation and the receiving cylinder must be perfectly controlled to obtain a quality winding.
Dans ce but, selon les caractéristiques de l'invention en cours de formation de la bobine, le support de celle-ci est dans une position proche de la verticale, c'est-à-dire que le point de rotation de la fourche constituant préhenseur et organe de préhension de la bobine, se situe sensiblement au- dessus du centre de gravité de ladite bobine.For this purpose, according to the characteristics of the invention during the formation of the coil, the support thereof is in a position close to the vertical, that is to say that the point of rotation of the fork constituting gripper and gripper of the coil, is located substantially above the center of gravity of said coil.
Il en ressort que le poids de la bobine ne crée qu'une faible composante affectant la force de pression, de sorte que la variation du poids en cours de production ne créera qu'une faible variation de cette force de contact. Il est donc possible de simplifier les moyens de contrôle de cette force de contact.It follows that the weight of the coil creates only a small component affecting the pressing force, so that the variation of the weight during production will create only a small variation of this force of contact. It is therefore possible to simplify the means of controlling this contact force.
Enfin, la présente invention propose un moyen pour résoudre le problème qui consiste à garantir que la bobine pleine, soit totalement évacuée sans risque de coincement.Finally, the present invention provides a means of solving the problem which consists in ensuring that the full reel is completely removed without risk of jamming.
Dans ce but, selon l'invention, la fourche constituant le moyen de préhension et de positionnement de la bobine, est équipée de moyens destinés à retenir le tube, lors de son lâcher, puis à l'accompagner au début de son mouvement d'évacuation lors de la rotation de ladite fourche vers le point de préhension d'un nouveau tube vide vers le système de distribution.For this purpose, according to the invention, the fork constituting the means for gripping and positioning the reel, is equipped with means intended to retain the tube, when it is released, then to accompany it at the start of its movement of evacuation during rotation of said fork to the gripping point of a new empty tube to the distribution system.
Ainsi, selon l'invention, la fourche tourne jusqu'au point de dépose de la bobine vers le moyen d'évacuation, et libère la bobine en ce point. Ensuite, poursuivant sa rotation vers le système de distribution des tubes vides, la fourche retient puis accompagne, par l'intermédiaire d'appendices disposés à cet effet, la bobine lors de son évacuation. Cette action a pour effet de réaligner le tube par rapport à la rampe et à conférer à la bobine une vitesse initiale suffisante pour qu'elle soit évacuée sans être freinée par les frottements.Thus, according to the invention, the fork rotates to the point of depositing the reel towards the discharge means, and releases the reel at this point. Then, continuing its rotation towards the distribution system of the empty tubes, the fork retains and then accompanies, by means of appendages arranged for this purpose, the coil during its evacuation. This action has the effect of realigning the tube with respect to the ramp and giving the coil an initial speed sufficient for it to be evacuated without being braked by friction.
La dépose de la bobine peut se faire, soit en marquant un temps d'arrêt dans le mouvement de la fourche, soit sans marquer de temps d'arrêt, c'est-à-dire dans la continuité de son mouvement.The reel can be removed, either by marking a stopping time in the movement of the fork, or without stopping time, that is to say in the continuity of its movement.
L'invention est exposée ci-après plus en détail à l'aide des figures des dessins annexés, dans lesquels : les figures 1, 2, 3 et 4 sont des vues à caractère schématique montrant le principe de cavage selon une solution relevant de l'état antérieur de la technique. la figure 5 est une vue montrant les principaux éléments du dispositif de mise en place et d'enlèvement de bobines de fils, selon les caractéristiques de l'invention dans une application à une machine textile.The invention is set out below in more detail with the aid of the figures of the accompanying drawings, in which: Figures 1, 2, 3 and 4 are schematic views showing the principle of digging according to a solution from the prior art. FIG. 5 is a view showing the main elements of the device for placing and removing spools of thread, according to the characteristics of the invention in an application to a textile machine.
Les figures 6, 7, 8 et 9 sont des vues schématiques de différentes phases du principe de cavage selon l'invention.Figures 6, 7, 8 and 9 are schematic views of different phases of the digging principle according to the invention.
La machine textile illustrée, figure 5, est du type de celle comportant, de manière connue, au moins un cylindre (1) de réception du fil (2) assujetti à un système de va et vient (3) de formation de la bobine (B) sur un support tabulaire (4). Comme il sera indiqué dans la suite de la description, au moment de l'opération de bobinage en tant que telle, le support tabulaire (4) est monté tournant dans des moyens de préhension et de positionnement articulés, constitués notamment par des bras pivotants (5), formant fourche.The textile machine illustrated, FIG. 5, is of the type comprising that, in known manner, at least one cylinder (1) for receiving the thread (2) subjected to a reciprocating system (3) for forming the spool ( B) on a tabular support (4). As will be indicated in the following description, at the time of the winding operation as such, the tabular support (4) is rotatably mounted in articulated gripping and positioning means, constituted in particular by pivoting arms ( 5), forming a fork.
Les supports tabulaires vides (4) sont montés dans un dispositif (6) faisant office de distributeur.The empty tabular supports (4) are mounted in a device (6) acting as a distributor.
Les bobines (B) sont évacuées par l'intermédiaire d'au moins une rampe (7) inclinée en direction du bas, à partir de sensiblement la zone de bobinage. A noter que les bobines peuvent être évacuées par d'autres moyens.The coils (B) are evacuated by means of at least one ramp (7) inclined in the downward direction, from substantially the winding zone. Note that the coils can be removed by other means.
Selon une caractéristique de l'invention, le cylindre de réception (1) motorisé, est positionné devant le support tabulaire (4) en position de bobinage. Il en résulte que la formation de la bobine (B) s'effectae à l'arrière du cylindre (1), par rapport à l'arrivée du fil. Le fil (2) arrive par le dessous du cylindre de réception (1). Le sens de rotation de la bobine (B) est opposé à celui de la disposition classique indiquée dans la partie introductive de la description et illustrée aux figures 1, 2, 3, et 4.According to a characteristic of the invention, the motorized receiving cylinder (1) is positioned in front of the tabular support (4) in the position of winding. As a result, the reel (B) is formed at the rear of the cylinder (1), relative to the arrival of the wire. The wire (2) arrives from below the receiving cylinder (1). The direction of rotation of the coil (B) is opposite to that of the conventional arrangement indicated in the introductory part of the description and illustrated in FIGS. 1, 2, 3, and 4.
Compte tenu de ces dispositions, au moment du cavage, après avoir coupé le fil (1) dans une aspiration (8) par exemple (figure 6). La fourche formant organe de préhension et de positionnement de la bobine effectue un mouvement de rotation jusqu'à une position de dépose. A cette position, la fourche (5) libère la bobine (B) qui roule le long de la rampe d'évacuation (7), l'extrémité du fil ayant tendance à s'enrouler et non plus à se dérouler (figure 7).Given these provisions, at the time of the digging, after cutting the wire (1) in a suction (8) for example (Figure 6). The fork forming the reel gripping and positioning member performs a rotational movement to a removal position. At this position, the fork (5) releases the reel (B) which rolls along the discharge ramp (7), the end of the wire tending to wind and no longer to unwind (Figure 7) .
Selon une autre caractéristique importante de l'invention, le magasin distributeur (6) des éléments tabulaires (4) est fixe, et positionné angulairement au-dessus de la zone de bobinage.According to another important characteristic of the invention, the distributor magazine (6) of the tabular elements (4) is fixed, and positioned angularly above the winding zone.
La fourche (5) est agencée pour poursuivre son mouvement et venir saisir un support tabulaire (4) dans le magasin de distribution (6) (figure 8). La fourche pivote alors en sens inverse pour venir positionner le tube vide au niveau de la zone de bobinage, derrière le cylindre de réception (1) (figure 9). Le processus d'enroulement peut alors reprendre, grâce au transfert du fil de la buse d'aspiration vers le tube vide.The fork (5) is arranged to continue its movement and come to grip a tabular support (4) in the distribution store (6) (Figure 8). The fork then pivots in the opposite direction to position the empty tube at the winding area, behind the receiving cylinder (1) (Figure 9). The winding process can then resume, thanks to the transfer of the wire from the suction nozzle to the empty tube.
Les extrémités des bras sont agencées sous forme de pinces (9) pour libérer à volonté les éléments supports tabulaires (4) après l'opération de bobinage. En outre, des appendices (10) sont montés en bout des bras de préhension pour redresser et aligner la bobine lorsqu'elle est libérée au niveau de la rampe d'évacuation. Ces appendices (10) ont tendance à retenir puis accompagner l'élément support (4) recevant la bobine lors du pivotement de la fourche (5) en direction du magasin distributeur (6) pour saisir à nouveau un élément tubulaire, de sorte que l'ensemble de la bobine n'a pas tendance à se mettre en travers de la rampe d'évacuation (7), et se trouve animé d'une vitesse initiale suffisante pour assurer une descente complète.The ends of the arms are arranged in the form of clamps (9) to free the tabular support elements (4) at will after the winding operation. In addition, appendages (10) are mounted at the end of the gripping arms to straighten and align the spool when it is released at the level of the evacuation ramp. These appendages (10) tend to retain and then accompany the support element (4) receiving the coil during the pivoting of the fork (5) in the direction of the distributor magazine (6) in order to grasp a tubular element again, so that the 'the entire reel does not tend to get across the discharge ramp (7), and is animated with an initial speed sufficient to ensure complete descent.
L'axe de pivotement (11) des bras (5) est situé au-dessus du cylindre de réception (1) et de la rampe d'évacuation (7). Les bras (5) pivotent selon la flèche (F) pour aller saisir les éléments tabulaires (4) positionnés dans le magasin (6) et selon la flèche (FI) pour venir positionner l'élément tubulaire saisi au niveau de la zone de bobinage.The pivot axis (11) of the arms (5) is located above the receiving cylinder (1) and the discharge ramp (7). The arms (5) pivot according to the arrow (F) to grasp the tabular elements (4) positioned in the magazine (6) and according to the arrow (FI) to position the tubular element grasped at the winding zone .
On renvoie aux figures 6, 7, 8 et 9 qui montrent les principales phases de fonctionnement du dispositif selon l'invention. Reference is made to FIGS. 6, 7, 8 and 9 which show the main operating phases of the device according to the invention.

Claims

REVENDICATIONS
-1- Dispositif pour la mise en place et l'enlèvement de bobines (B) de fil dans une machine textile comprenant : - au moins un cylindre de réception (1) du fil (2) assujetti à un système de va et vient (3) pour la formation de la bobine (B) sur un support tabulaire tournant (4) monté dans des moyens de préhension et de positionnement (5) ;-1- Device for placing and removing spools (B) of thread in a textile machine comprising: - at least one cylinder for receiving (1) the thread (2) subject to a reciprocating system ( 3) for forming the coil (B) on a rotating tabular support (4) mounted in gripping and positioning means (5);
- des moyens de distribution de supports tabulaires (6) ; - au moins un moyen (7) d'évacuation des bobines formées sur le support tabulaire, caractérisé en ce que le cylindre de réception (1) et le support tabulaire (4) en position de bobinage, sont positionnés dans l'espace selon un sens de rotation défini, pour que le fil aborde le point de contact en passant par dessous le cylindre de réception, et s'enroule par dessus le support tabulaire, et que la formation de la bobine et son mouvement de dégagement vers le moyen (7) d'évacuation soient dans une direction opposée à l'arrivée du fil, les moyens de distribution (6) des supports tabulaires, étant fixes.- means for distributing tabular supports (6); - At least one means (7) for discharging the coils formed on the tabular support, characterized in that the receiving cylinder (1) and the tabular support (4) in the winding position, are positioned in space according to a defined direction of rotation, so that the wire approaches the contact point passing under the receiving cylinder, and is wound over the tabular support, and that the formation of the coil and its release movement towards the means (7 ) of evacuation are in a direction opposite to the arrival of the wire, the distribution means (6) of the tabular supports, being fixed.
-2- Dispositif selon la revendication 1, caractérisé en ce que les moyens de préhension et de positionnement des supports sont constitués par des bras pivotants (5), formant une fourche qui est positionnée dans l'espace et articulée, de sorte que le déplacement du support, du fait du grossissement de la bobine en cours de formation, puis son dégagement jusqu'au point où elle est déposée vers le moyen d'évacuation (7), puis son déplacement jusqu'au point de préhension d'un nouveau tabe vide dans le dispositif de distribution, soit disposé sur une même trajectoire simple, de préférence circulaire, et dans cet ordre, le retour du tabe vide, depuis le distributeur jusqu'au point de contact sur le cylindre de réception, s'effectae selon la même trajectoire en sens inverse, la bobine pleine déposée à l'aller étant, dans l'intervalle de temps, évacuée.-2- Device according to claim 1, characterized in that the means for gripping and positioning the supports are constituted by pivoting arms (5), forming a fork which is positioned in space and articulated, so that the displacement of the support, due to the enlargement of the reel during formation, then its release to the point where it is deposited towards the evacuation means (7), then its displacement to the point of gripping of a new tab vacuum in the device distribution, either arranged on the same simple trajectory, preferably circular, and in this order, the return of the empty tabe, from the distributor to the point of contact on the receiving cylinder, takes place along the same trajectory in opposite direction , the full coil deposited on the outward journey being, in the meantime, discharged.
-3- Dispositif selon la revendication 2, caractérisé en ce qu'en cours de formation de la bobine, le support de celle-ci est dans une position proche de la verticale, c'est-à-dire que le point de rotation de la fourche constituant préhenseur et organe de préhension de la bobine, se situe sensiblement au- dessus du centre de gravité de ladite bobine.-3- Device according to claim 2, characterized in that during the formation of the coil, the support thereof is in a position close to the vertical, that is to say that the point of rotation of the fork constituting the gripper and the gripping member of the coil, is located substantially above the center of gravity of said coil.
-4- Dispositif selon la revendication 2, caractérisé en ce que la fourche (5) constituant les moyens de préhension et de positionnement de la bobine, est dotée d'appendices destinés à retenir puis accompagner le tabe dans son mouvement d'évacuation, lors de la rotation de ladite fourche vers le point de préhension d'un nouveau tabe vide vers le système de distribution.-4- Device according to claim 2, characterized in that the fork (5) constituting the means for gripping and positioning the coil, is provided with appendages intended to retain and then accompany the tabe in its evacuation movement, during from the rotation of said fork towards the gripping point of a new empty tabe towards the distribution system.
-5- Dispositif selon la revendication 2, caractérisé en ce que l'axe de pivotement des bras de préhension (5) est situé au-dessus du cylindre de réception (1) et du moyen d'évacuation (7).-5- Device according to claim 2, characterized in that the pivot axis of the gripping arms (5) is located above the receiving cylinder (1) and the discharge means (7).
-6- Dispositif selon la revendication 1, caractérisé en ce que les moyens de distribution (6) des supports tabulaires (4) sont constitués par un magasin fixe positionné angulairement au-dessus de la zone de bobinage. -7- Dispositif selon la revendication 1, caractérisé en ce que le moyen (7) d'évacuation est une rampe, de sorte que le fil de la bobine a tendance à s'enrouler lorsque la bobine roule sur ladite rampe d'évacuation. -6- Device according to claim 1, characterized in that the distribution means (6) of the tabular supports (4) are constituted by a fixed magazine angularly positioned above the winding area. -7- Device according to claim 1, characterized in that the means (7) of discharge is a ramp, so that the coil wire tends to wind when the coil rolls on said discharge ramp.
EP04742402A 2003-04-07 2004-03-31 Device for positioning and removing thread bobbins in a textile machine Expired - Lifetime EP1611043B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0304423A FR2853332B1 (en) 2003-04-07 2003-04-07 DEVICE FOR PLACING AND REMOVING WIRE COILS IN A TEXTILE MACHINE
PCT/FR2004/000801 WO2004092045A2 (en) 2003-04-07 2004-03-31 Device for positioning and removing thread bobbins in a textile machine

Publications (2)

Publication Number Publication Date
EP1611043A2 true EP1611043A2 (en) 2006-01-04
EP1611043B1 EP1611043B1 (en) 2008-07-23

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EP04742402A Expired - Lifetime EP1611043B1 (en) 2003-04-07 2004-03-31 Device for positioning and removing thread bobbins in a textile machine

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EP (1) EP1611043B1 (en)
JP (1) JP2006521981A (en)
CN (1) CN100471777C (en)
AT (1) ATE402113T1 (en)
DE (1) DE602004015266D1 (en)
FR (1) FR2853332B1 (en)
WO (1) WO2004092045A2 (en)

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FR2383898A1 (en) * 1977-03-18 1978-10-13 Capron Roger Printing relief patterns in soft clay during ceramic mfr. - using a roller with flexible typographic design
DE102012005374B4 (en) * 2012-03-16 2023-09-28 Maschinenfabrik Niehoff Gmbh & Co Kg Bobbin changing device
JP2015101453A (en) * 2013-11-26 2015-06-04 村田機械株式会社 Bobbin holding device, bobbin setting device, and yarn winder
JP2016074527A (en) * 2014-10-08 2016-05-12 村田機械株式会社 Bobbin separation unit, doffing truck, and yarn winding unit
CN106542247A (en) * 2015-09-18 2017-03-29 江苏泰通新材料有限公司 A kind of new discharge bin
CN107352325A (en) * 2017-08-03 2017-11-17 上海海石花纺织机械设备有限公司 Cylinder yarn unloads yarn and buffers laborsaving slideway mechanism

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US3901456A (en) * 1972-01-17 1975-08-26 Rhone Poulenc Textile Automatic winding machine
CH555290A (en) * 1973-03-05 1974-10-31 Heberlein & Co Ag Automatic bobbin change unit - with conveyor and mobility along length of machine giving bobbin removal
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WO2004092045A2 (en) 2004-10-28
CN100471777C (en) 2009-03-25
DE602004015266D1 (en) 2008-09-04
JP2006521981A (en) 2006-09-28
FR2853332B1 (en) 2005-11-25
WO2004092045A3 (en) 2004-12-16
ATE402113T1 (en) 2008-08-15
EP1611043B1 (en) 2008-07-23
FR2853332A1 (en) 2004-10-08
CN1791545A (en) 2006-06-21

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