EP0250348A1 - Apparatus for positioning and retaining a bobbin during yarn winding or unwinding - Google Patents
Apparatus for positioning and retaining a bobbin during yarn winding or unwinding Download PDFInfo
- Publication number
- EP0250348A1 EP0250348A1 EP87420166A EP87420166A EP0250348A1 EP 0250348 A1 EP0250348 A1 EP 0250348A1 EP 87420166 A EP87420166 A EP 87420166A EP 87420166 A EP87420166 A EP 87420166A EP 0250348 A1 EP0250348 A1 EP 0250348A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sleeves
- mandrel
- fingers
- elementary
- support tube
- 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
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- 238000004804 winding Methods 0.000 title description 7
- 230000002093 peripheral effect Effects 0.000 claims abstract description 6
- 238000000465 moulding Methods 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims description 2
- KWGRBVOPPLSCSI-WPRPVWTQSA-N (-)-ephedrine Chemical compound CN[C@@H](C)[C@H](O)C1=CC=CC=C1 KWGRBVOPPLSCSI-WPRPVWTQSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
Images
Classifications
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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
- B65H54/00—Winding, coiling, or depositing filamentary material
- B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
- B65H54/40—Arrangements for rotating packages
- B65H54/54—Arrangements for supporting cores or formers at winding stations; Securing cores or formers to driving members
- B65H54/543—Securing cores or holders to supporting or driving members, e.g. collapsible mandrels
-
- 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 an improved device allowing the positioning and the maintenance of a wire support tube during a reeling or reeling operation during which said support (tube) is rotated.
- Such expandable mandrels are used on many textile machines such as twists, assemblers, stranding machines. Given the increase in production speed, the weight and the diameter of the windings coming from spinning, it is imperative to have a perfect coincidence of the axes of the mandrel and of the wire support tube as well as a perfect immobilization of these two elements in relation to each other both during the running stroke and when starting or stopping.
- another also very important problem is that of the ease of positioning the support on the mandrel as well as of its extraction, an operation which is sometimes disturbed by the fact that the support tubes are not always perfectly cylindrical, in particular when they are made of cardboard.
- the invention therefore relates to a new type of mandrel intended to serve as a holding element for a hollow cylindrical support tube around which wire is wound, usable in particular for unwinding said wire on unwinding, said mandrel being mounted on a shaft allowing it to rotate, and it is characterized in that: -
- the mandrel consists of two elementary sleeves, mounted opposite one another on the drive shaft, said sleeves comprising peripheral fingers regularly spaced from each other, the fingers of a sleeve pressing against the area between the fingers of the other sleeve, at least one of the elementary sleeves being mounted free in translation on the drive shaft and the assembly is subjected to the action of thrust means tending to keep the two sleeves spaced from one another, so that the ends of the fingers tend to move away from the axis of the mandrel and to block the cylindrical support tube disposed around said mandrel.
- the two elementary sleeves are identical except that the ends of the fingers of one of the sleeves include the stops for the wire support tube; - the elementary sleeves are made of plastic, by molding; - Means tending to keep the two elementary sleeves separated from one another are constituted by a spring.
- FIG. 1 illustrates, in perspective, a working position of a twisting machine in which a winding of wire (1) formed on a support tube (2), made of cardboard for example, must be unwound at the unwinding to be returned to a spindle (3), ring and slider, to communicate a twist.
- the wire winding (1) is mounted on a support mandrel according to the invention, which will be seen in more detail in the following description, said mandrel being driven in rotation by a motor shaft (4). controlled by any appropriate means (geared motor for example).
- said mandrel M is constituted, in accordance with the invention, as shown in Figures 2 and 3, two elementary sleeves (5a, 5b), mounted opposite one another at the end (6) of the drive shaft (4).
- These two sleeves (5a, 5b) are made of molded plastic, from identical parts and, in the remainder of the description, the same references assigned with indices a e b will be used to designate the same elements which characterize their structure.
- These two sleeves (5a) and (5b) comprise a hub (7a, 7b) allowing their mounting on the end (6) of the drive shaft (4), a bottom (8a, 8b) and a plurality of peripheral fingers (9a, 9b)).
- the machons (5a, 5b) are mounted in opposition to the end (6) of the shaft (4), so that the peripheral fingers (9a, 9b) are nested one inside the other and bear against the junction area between the fingers of the opposite sleeve. In other words, the fingers (9a) bear against the junction zone (10b) formed between the fingers (9b) of the sleeve (5b) and vice versa for the fingers (9b).
- One of the machons, (5a) for example, is fixedly mounted on the end (6) of the drive shaft (4) while the other sleeve, (5b) in the present case, is mounted free in translation.
- a spring (14) is applied between the internal faces of the bottoms (5a) and (5b) and tends to keep the two sleeves normally spaced from one another, so that the stops (11a, 11b) provided on the underside of each of the fingers (9a, 9b) bear against the ramps (12a, 12b) provided against the bottoms (5a, 5b), which tends to spread the relative to the axis XX of the mandrel ends of said fingers.
- the wire support tube is therefore perfectly maintained and centered around the mandrel M.
- the two sleeves (5a, 5b) When it is desired to install or remove the support tube, the two sleeves (5a, 5b) are brought into the position shown in Figures 2 and 3, that is to say that the sliding sleeve (5b) is pushed back, for example by means of jacks so as to compress the internal spring (11) so that the ends of the flexible fingers are no longer subjected to the action of the ramps and tend to resume their initial position parallel to the axis XX of the mandrel.
- Such a mandrel of particularly simple design has a very high efficiency, is easy to maintain and assemble and moreover allows automatic self-centering during the positioning of the wire support tubes.
- the dimensions of the mandrel are determined as a function of the diameter and the length of the support slats.
- such a type of mandrel is particularly suitable for equipping the unwinding part of a collating-twisting unit, it could be envisaged to maintain the winding support tubes in a similar manner.
Landscapes
- Storage Of Web-Like Or Filamentary Materials (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
Dispositif (mandrin) destiné à servir d'élément de maintien à un tube support cylindrique autour duquel est enroulé du fil.Device (mandrel) intended to serve as a holding element for a cylindrical support tube around which wire is wound.
Il est constitué de deux manchons élémentaires (5a, 5b) montés en regard l'un de l'autre sur l'arbre d'entraînement (4), lesdits manchons comportant des doigts périphériques (9a, 9b), espacés régulièrement les uns des autres, les doigts d'un manchon prenant appui contre la surface comprise entre les doigts de l'autre manchon. Au moins l'un des manchons élémentaires est monté libre en translation sur l'arbre d'entraînement (4) et des moyens de poussée tendent à maintenir les deux manchons écartés l'un de l'autre, de telle sorte que les extrémités des doigts (9a,9b) tendent à s'écarter par rapport à l'axe dudit mandrin et à bloquer le tube support cylindrique disposé autour de lui. 
Description
La présente invention a trait à un dispositif perfectionné permettant le positionnement et le maintien d'un tube support de fil lors d'une opération de dévidage ou renvidage durant laquelle ledit support (tube) est entraîné en rotation.The present invention relates to an improved device allowing the positioning and the maintenance of a wire support tube during a reeling or reeling operation during which said support (tube) is rotated.
Dans la suite de la description, l'invention sera décrite pour un dispositif, qui sera désigné par l'expression "mandrin expansible " utilisé lors d'une opération de dévidage au cours de laquelle le mandrin est entraîné en rotation par son axe mais il est évident qu'un tel dispositif pourrait également être utilisé lors d'une opération de renvidage.In the following description, the invention will be described for a device, which will be designated by the expression "expandable mandrel" used during a reeling operation during which the mandrel is rotated by its axis but it It is obvious that such a device could also be used during a winding operation.
De tels mandrins expansibles sont utilisés sur de nombreuses machines textiles telles que les retordeuses, les assembleuses, les câbleuses.. . Compte-tenu de l'augmentation de vitesse de production, du poids et du diamétre des enroulements provenant de filature, il est impératif d'avoir une parfaite coïncidence des axes du mandrin et du tube support de fil ainsi qu'une immobilisation parfaite de ces deux éléments l'un par rapport à l'autre tant en course de fonctionnement que lors de la mise en route ou de l'arrêt. De plus, un autre problème également très important est celui de la facilité de mise en place du support sur le mandrin ainsi que de son extraction, opération qui se trouve parfois perturbée par le fait que les tubes support ne sont pas toujours parfaitement cylindriques, notamment lorsqu'ils sont en carton.Such expandable mandrels are used on many textile machines such as twists, assemblers, stranding machines. Given the increase in production speed, the weight and the diameter of the windings coming from spinning, it is imperative to have a perfect coincidence of the axes of the mandrel and of the wire support tube as well as a perfect immobilization of these two elements in relation to each other both during the running stroke and when starting or stopping. In addition, another also very important problem is that of the ease of positioning the support on the mandrel as well as of its extraction, an operation which is sometimes disturbed by the fact that the support tubes are not always perfectly cylindrical, in particular when they are made of cardboard.
Diverses solutions ont été proposées à ce jour pour résoudre ces problèmes.Various solutions have been proposed to date to solve these problems.
L'une de ces solutions, décrite dans l'US-A-3 356 309 consiste à utiliser un mandrin muni tangentiellement de deux surfaces égales (plates) s'étendant sur toute la longueur du mandrin, symétriquement par rapport à son axe, de telle manière qu'après mise en place du support portant le fil sur ledit mandrin, les arêtes longitudinales de ces surfaces viennent sur toute leur étendue au contact des surfaces cylindriques du support, assurant ainsi une parfaite coïncidence des axes des deux élé ments mandrin et support.One of these solutions, described in US Pat. No. 3,356,309, consists in using a mandrel tangentially provided with two equal (flat) surfaces extending over the entire length of the mandrel, symmetrically with respect to its axis, of such that after the support carrying the wire has been placed on said mandrel, the longitudinal edges of these surfaces come over their entire extent in contact with the cylindrical surfaces of the support, thus ensuring perfect coincidence of the axes of the two elements mandrel and support .
Cependant, au cours des périodes de travail intensif, par suite notamment des vibrations des installations, des tensions intempestives subies parfois par les fils enroulés, il peut se produire des déplacements relatifs, soit axiaux soit angulaires, soit les deux du support par rapport au mandrin.However, during periods of intensive work, in particular as a result of the vibrations of the installations, untimely tensions sometimes suffered by the coiled wires, relative displacements may occur, either axial or angular, or both of the support relative to the mandrel. .
Il résulte alors des enroulements irréguliers et des variations de densité et/ou des caractéristiques du fil réalisé qui peuvent donner lieu à des défauts lors des traitements ultérieurs ou lors de l'utilisation du fil.It then results from irregular windings and variations in density and / or characteristics of the wire produced which can give rise to defects during subsequent treatments or during the use of the wire.
De plus, les bords des surfaces se détériorent très rapidement.In addition, the edges of the surfaces deteriorate very quickly.
Enfin, une telle solution n'est pas adaptée dans le cas de tubes support de grand diamètre qui, à ce jour, peuvent atteindre plus de trois cent millimètres, car alors le tube ne porte que sur quatre arêtes et peut avoir tendance à s'écraser et/ou à glisser par rapport aux arêtes.Finally, such a solution is not suitable in the case of large-diameter support tubes which, to date, can reach more than three hundred millimeters, because then the tube bears only on four edges and may tend to s' overwrite and / or slide over at the edges.
Récemment, dans le FR-A-2 572 374, il a été proposé un perfectionnement à un tel type de mandrin, perfectionnement selon leguel on prévoit à la périphérie dudit mandrin une pluralité de lamelles flexibles, parallèles entre elles, s'étendant sur toute sa longueur et dont les bords libres viennent plaquer contre l'intérieur du tube support de fil.Recently, in FR-A-2 572 374, an improvement has been proposed to such a type of mandrel, improvement according to the law, a plurality of flexible lamellae, parallel to each other, extending over all, are provided at the periphery of said mandrel. its length and whose free edges press against the inside of the wire support tube.
Cette solution, à l'usage, ne s'est également pas avérée satisfaisante, les arêtes flexibles ayant tendance à se détériorer rapidement.This solution, in use, has also not proved satisfactory, the flexible edges tending to deteriorate rapidly.
Par suite, la solution encore la plus couramment utilisée à ce jour pour permettre d'assurer le positionnement et le maintien d'un tube support de fil consiste à disposer, sur la surface du mandrin, des ressorts plats qui présentent comme inconvénients bien connus d'être coûteux à réaliser et d'entraîner un remplacement quand des ressorts se détériorent rapidement. Par ailleurs, lors d'accélérations brutales, notamment lors de la mise en route ou de l'arrêt, le problème des glissements rotatifs du tube support par rapport au mandrin subsiste toujours. Enfin, la mise en place se faisant en force, elle est parfois difficile voire impossible à réaliser si le tube support n'est pas parfaitement cylindrique.As a result, the solution still most commonly used to date to ensure the positioning and the maintenance of a wire support tube consists in having, on the surface of the mandrel, flat springs which have well-known drawbacks d '' be expensive to carry out and involve a replacement when springs deteriorate quickly. Furthermore, during sudden accelerations, in particular when starting or stopping, the problem of rotary slippage of the support tube relative to the mandrel still remains. Finally, the positioning being done by force, it is sometimes difficult or even impossible to achieve if the support tube is not perfectly cylindrical.
Or on a trouvé, et c'est ce qui fait l'objet de la présente invention, un nouveau type de mandrin d'une conception particulièrement simple qui surmonte les inconvénients des dispositifs antérieurs et, par ailleurs, permet d'automatiser facilement la mise en place et l'enlèvement des tubes support du mandrin.However, we have found, and this is what is the subject of the present invention, a new type of mandrel of a particularly simple design which overcomes the drawbacks of the prior devices and, moreover, makes it easy to automate the setting. in place and removal of the mandrel support tubes.
D'une manière générale, l'invention concerne donc un nouveau type de mandrin destiné à servir d'élément de maintien à un tube support cylindrigue creux autour duquel est enroulé du fil, utilisable notamment pour dévider ledit fil à la déroulée, ledit mandrin étant monté sur un arbre permettant son entraînement en rotation et il se caractérise en ce que :
- le mandrin est constitué de deux manchons élémentaires, montés en regard l'un de l'autre sur l'arbre d'entraînement, lesdits manchons comportant des doigts périphériques espacés régulièrement les uns des autres, les doigts d'un manchon prenant appui contre la surface comprise entre les doigts de l'autre manchon,
- au moins l'un des manchons élémentaires étant monté libre en translation sur l'arbre d'entraînement et l'ensemble est soumis à l'action de moyens de poussée tendant à maintenir les deux manchons écartés l'un de l'autre, de telle sorte que les extrémités des doigts tendent à s'écarter par rapport à l'axe du mandrin et à bloquer le tube support cylindrique disposé autour dudit mandrin.In general, the invention therefore relates to a new type of mandrel intended to serve as a holding element for a hollow cylindrical support tube around which wire is wound, usable in particular for unwinding said wire on unwinding, said mandrel being mounted on a shaft allowing it to rotate, and it is characterized in that:
- The mandrel consists of two elementary sleeves, mounted opposite one another on the drive shaft, said sleeves comprising peripheral fingers regularly spaced from each other, the fingers of a sleeve pressing against the area between the fingers of the other sleeve,
at least one of the elementary sleeves being mounted free in translation on the drive shaft and the assembly is subjected to the action of thrust means tending to keep the two sleeves spaced from one another, so that the ends of the fingers tend to move away from the axis of the mandrel and to block the cylindrical support tube disposed around said mandrel.
De préférence, conformément à l'invention :
- les deux manchons élémentaires sont identiques si ce n'est que les extrémités des doigts de l'un des manchons comportent les butées d'arrêt pour le tube support de fil ;
- les manchons élémentaires sont réalisés en matière plastique, par moulage ;
- des moyens tendant à maintenir les deux manchons élémentaires écartés l'un de l'autre sont constitués par un ressort.Preferably, in accordance with the invention:
- the two elementary sleeves are identical except that the ends of the fingers of one of the sleeves include the stops for the wire support tube;
- the elementary sleeves are made of plastic, by molding;
- Means tending to keep the two elementary sleeves separated from one another are constituted by a spring.
L'invention et les avantages qu'elle apporte seront cependant mieux compris grâce à l'exemple de réalisation donné ci-après à titre indicatif et non limita tif et qui est illustré par les schémas annexés dans lesquels :
- - la figure 1 est une vue schématique en perspective d'une position de travail d'une retordeuse nécessitant un mandrin conforme à l'invention ;
- - la figure 2 est une vue en perspective schématique d'un tel mandrin ;
- - la figure 3 est une coupe, selon son plan de symétrie longitudinal, d'un mandrin conforme à l'invention.
- - Figure 1 is a schematic perspective view of a working position of a twisting machine requiring a mandrel according to the invention;
- - Figure 2 is a schematic perspective view of such a mandrel;
- - Figure 3 is a section along its longitudinal plane of symmetry, of a mandrel according to the invention.
Si l'on se reporte aux schémas annexés, la figure 1 illustre, en perspective, une position de travail d'une retordeuse dans laquelle un enroulement de fil (1) formé sur un tube support (2), en carton par exemple, doit être dévidé à la déroulée pour être renvidé sur une broche (3), à anneau et curseur, permettant de lui communiquer une torsion. Pour ce faire, l'enroulement de fil (1) est monté sur un mandrin support conforme à l'invention, qui sera vu plus en détail dans la suite de la description, ledit mandrin étant entraîné en rotation par un arbre moteur (4) commandé par tout moyen approprié (motoréducteur par exemple).Referring to the appended diagrams, FIG. 1 illustrates, in perspective, a working position of a twisting machine in which a winding of wire (1) formed on a support tube (2), made of cardboard for example, must be unwound at the unwinding to be returned to a spindle (3), ring and slider, to communicate a twist. To do this, the wire winding (1) is mounted on a support mandrel according to the invention, which will be seen in more detail in the following description, said mandrel being driven in rotation by a motor shaft (4). controlled by any appropriate means (geared motor for example).
Afin de permettre une mise en place et un enlèvement aisé du tube support de fil autour du mandrin M, ainsi qu'un centrage et une immobilisation efficace de ce tube en cours de fonctionnement, ledit mandrin M est constitué, conformément à l'invention, ainsi que cela ressort des figures 2 et 3, de deux manchons élémentaires (5a,5b), montés en regard l'un de l'autre à l'extrémité (6) de l'arbre d'entraîneemnt (4). Ces deux manchons (5a,5b) sont réalisés en matière plastique moulée, à partir de pièces identiques et, dans la suite de la description, les mêmes références affectées des indices a e b seront utilisées pour désigner les mêmes éléments qui en caractérisent leur structure.In order to allow easy positioning and removal of the wire support tube around the mandrel M, as well as effective centering and immobilization of this tube during operation, said mandrel M is constituted, in accordance with the invention, as shown in Figures 2 and 3, two elementary sleeves (5a, 5b), mounted opposite one another at the end (6) of the drive shaft (4). These two sleeves (5a, 5b) are made of molded plastic, from identical parts and, in the remainder of the description, the same references assigned with indices a e b will be used to designate the same elements which characterize their structure.
Ces deux manchons (5a) et (5b) comportent un moyeu (7a,7b) permettant leur montage sur l'extrémité (6) de l'arbre d'entraînement (4), un fond (8a, 8b) et une pluralité de doigts périphériques (9a,9b)). Les machons (5a, 5b) sont montés en opposition à l'extrémité (6) de l'arbre (4), de telle sorte que les doigts périphériques (9a,9b) soient imbriqués les uns dans les autrea et prennent appui contre la zone de jonction entre les doigts du manchon opposé. En d'autres termes, les doigts (9a) prennent appui contre la zone de jonction (10b) formée entre les doigts (9b) du manchon (5b) et inversement pour les doigts (9b). L'un des machons, (5a) par exemple, est monté fixe sur l'extrémité (6) de l'arbre d'entraînement (4) alors que l'autre manchon, (5b) dans le cas présent, est monté libre en translation. Un ressort (14) vient s'appliquer entre les faces internes des fonds (5a) et (5b) et tend à maintenir les deux manchons normalement écartés l'un de l'autre, de telle sorte que les butées (11a,11b) prévues sur la face inférieure de chacun des doigts (9a,9b) s'appuient contre les rampes (12a,12b) prévues contre les fonds (5a,5b), ce qui tend à écarter par rapport à l'axe XX du mandrin les extrémités desdits doigts. En fonctionnement normal, le tube support de fil est donc parfaitement maintenu et centré autour du mandrin M. Lorsque l'on souhaite effectuer la mise en place ou l'enlèvement du tube support, les deux manchons (5a,5b) sont amenés dans la position montrée aux figures 2 et 3, c'est-à-dire que l'on repousse le manchon coulissant (5b), par exemple au moyen de vérins de manière à comprimer le ressort interne (11) de telle sorte que les extrémités des doigts flexibles ne soient plus soumis à l'action des rampes et tendent à reprendre leur position initiale parallèle à l'axe XX du mandrin.These two sleeves (5a) and (5b) comprise a hub (7a, 7b) allowing their mounting on the end (6) of the drive shaft (4), a bottom (8a, 8b) and a plurality of peripheral fingers (9a, 9b)). The machons (5a, 5b) are mounted in opposition to the end (6) of the shaft (4), so that the peripheral fingers (9a, 9b) are nested one inside the other and bear against the junction area between the fingers of the opposite sleeve. In other words, the fingers (9a) bear against the junction zone (10b) formed between the fingers (9b) of the sleeve (5b) and vice versa for the fingers (9b). One of the machons, (5a) for example, is fixedly mounted on the end (6) of the drive shaft (4) while the other sleeve, (5b) in the present case, is mounted free in translation. A spring (14) is applied between the internal faces of the bottoms (5a) and (5b) and tends to keep the two sleeves normally spaced from one another, so that the stops (11a, 11b) provided on the underside of each of the fingers (9a, 9b) bear against the ramps (12a, 12b) provided against the bottoms (5a, 5b), which tends to spread the relative to the axis XX of the mandrel ends of said fingers. In normal operation, the wire support tube is therefore perfectly maintained and centered around the mandrel M. When it is desired to install or remove the support tube, the two sleeves (5a, 5b) are brought into the position shown in Figures 2 and 3, that is to say that the sliding sleeve (5b) is pushed back, for example by means of jacks so as to compress the internal spring (11) so that the ends of the flexible fingers are no longer subjected to the action of the ramps and tend to resume their initial position parallel to the axis XX of the mandrel.
Afin de bien positionner le support de fil (2), les extrémités des doigts (9b) du manchon (5b) comportent des butées périphériques (13) alors que ces butées ont été enlevées, par usinage, aux extrémités des doigts du manchon (5a).In order to properly position the wire support (2), the ends of the fingers (9b) of the sleeve (5b) have peripheral stops (13) while these stops have been removed, by machining, at the ends of the fingers of the sleeve (5a ).
Un tel mandrin de conception particulièrement simple présente une très grande efficacité, est facile à entretenir et à monter et permet par ailleurs un autocentrage automatigue lors de la mise en place des tubes support de fil. Bien entendu, les dimensions du mandrin sont déterminées en fonction du diamètre et de la longueur des tuves support. Par ailleurs, si un tel type de mandrin est particulièrement adapté pour équiper la partie dévidage d'une assembleuse-retordeuse, il pourrait être envisagé d'assurer le maintien des tubes support de renvidage d'une manière similaire.Such a mandrel of particularly simple design has a very high efficiency, is easy to maintain and assemble and moreover allows automatic self-centering during the positioning of the wire support tubes. Of course, the dimensions of the mandrel are determined as a function of the diameter and the length of the support slats. Furthermore, if such a type of mandrel is particularly suitable for equipping the unwinding part of a collating-twisting unit, it could be envisaged to maintain the winding support tubes in a similar manner.
Claims (4)
caractérisé en ce que :
- le mandrin (M) est constitué de deux manchons élémentaires (5a,5b), montés en regard l'un de l'autre sur l'arbre d'entraînement (4), lesdits manchons comportant des doigts périphériques (9a, 9b) espacés régulièrement les uns des autres, les doigts d'un manchon prenant appui contre la surface comprise entre les doigts de l'autre manchon,
- au moins l'un des manchons élémentaires (5a,5b) étant monté libre en translation sur l'arbre d'entraînement (4) et l'ensemble est soumis à l'action de moyens de poussée tendant à maintenir les deux manchons écartés l'un de l'autre, de telle sorte que les extrémités des doigts (9a,9b) tendent à s'écarter par rapport à l'axe du mandrin et à bloquer le tube support cylindrique (2) disposé autour dudit mandrin.1 / Device (mandrel) intended to serve as a holding element for a hollow cylindrical support tube (2) around which wire is wound, usable in particular for unwinding said wire on unwinding,
characterized in that:
- The mandrel (M) consists of two elementary sleeves (5a, 5b), mounted opposite one another on the drive shaft (4), said sleeves comprising peripheral fingers (9a, 9b) regularly spaced from each other, the fingers of one sleeve pressing against the surface between the fingers of the other sleeve,
- At least one of the elementary sleeves (5a, 5b) being mounted free in translation on the drive shaft (4) and the assembly is subjected to the action of thrust means tending to keep the two sleeves apart one from the other, so that the ends of the fingers (9a, 9b) tend to move away from the axis of the mandrel and to block the cylindrical support tube (2) disposed around said mandrel.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8609053A FR2600315B1 (en) | 1986-06-19 | 1986-06-19 | DEVICE FOR POSITIONING AND HOLDING A WIRE SUPPORT TUBE DURING A WINDING OR REWINDING OPERATION |
| FR8609053 | 1986-06-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0250348A1 true EP0250348A1 (en) | 1987-12-23 |
| EP0250348B1 EP0250348B1 (en) | 1989-10-11 |
Family
ID=9336591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP87420166A Expired EP0250348B1 (en) | 1986-06-19 | 1987-06-16 | Apparatus for positioning and retaining a bobbin during yarn winding or unwinding |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4765562A (en) |
| EP (1) | EP0250348B1 (en) |
| JP (1) | JPH07107207B2 (en) |
| DE (1) | DE3760735D1 (en) |
| ES (1) | ES2011819B3 (en) |
| FR (1) | FR2600315B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3101339A1 (en) | 2019-10-01 | 2021-04-02 | E-Tex | Wire spool mandrel |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5170979A (en) * | 1992-02-28 | 1992-12-15 | Milliken Research Corporation | Universal package holder |
| FR2863602B1 (en) * | 2003-12-12 | 2006-03-10 | Chambonne | EXPANDABLE CHUCK, IN PARTICULAR TAVELLE WASTE HOLDER. |
| FR2905685B1 (en) * | 2006-09-08 | 2009-11-06 | Rieter Textile Machinery Fr | CHUCK FOR POSITIONING AND MAINTAINING A SUPPORT TUBE |
| CN108166113B (en) * | 2018-03-28 | 2023-04-07 | 山东华宇工学院 | Special fixture for textile bobbin |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1031156A (en) * | 1951-01-23 | 1953-06-22 | Feldmu Hle S A | Device for winding and further processing of rayon |
| EP0078978A1 (en) * | 1981-10-30 | 1983-05-18 | TEIJIN SEIKI CO. Ltd. | Bobbin holder |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1996319A (en) * | 1933-03-17 | 1935-04-02 | Universal Winding Co | Shifting means for rotatable elements |
| DE736339C (en) * | 1937-03-04 | 1943-06-12 | Feldmuehle A G | Winding device for freshly spun rayon threads consisting of a bobbin and a bobbin holder |
| US2615652A (en) * | 1950-03-02 | 1952-10-28 | Ind Rayon Corp | Yarn package support |
| BE526760A (en) * | 1953-04-29 | |||
| US3165279A (en) * | 1961-12-08 | 1965-01-12 | Draper Corp | Package holder for textile machines |
| US3356309A (en) * | 1966-04-22 | 1967-12-05 | Engneered Plastics Inc | Mounting core |
| US3398907A (en) * | 1966-07-01 | 1968-08-27 | Owens Corning Fiberglass Corp | Apparatus for driving filamentary material collectors |
| US3592401A (en) * | 1969-10-15 | 1971-07-13 | Northrop Carolina Inc | Chucking assembly for winding machines |
| DE2225555C3 (en) * | 1972-05-26 | 1981-07-30 | W. Schlafhorst & Co, 4050 Mönchengladbach | Bobbin holder |
| US4142690A (en) * | 1975-04-18 | 1979-03-06 | Industrie-Werke Karlsruhe Augsburg Aktiengesellschaft | Spool carrier, particularly for winding up textile threads or the like |
| JPS60197570A (en) * | 1984-03-16 | 1985-10-07 | Koutsu Seisakusho:Kk | Yarn winder |
| FR2572374A1 (en) * | 1984-10-25 | 1986-05-02 | Asa Sa | Device for unwinding (paying off) a filamentary material stored on a cylindrical tubular support |
-
1986
- 1986-06-19 FR FR8609053A patent/FR2600315B1/en not_active Expired
-
1987
- 1987-05-29 US US07/055,259 patent/US4765562A/en not_active Expired - Lifetime
- 1987-06-16 EP EP87420166A patent/EP0250348B1/en not_active Expired
- 1987-06-16 ES ES87420166T patent/ES2011819B3/en not_active Expired - Lifetime
- 1987-06-16 DE DE8787420166T patent/DE3760735D1/en not_active Expired
- 1987-06-18 JP JP62152395A patent/JPH07107207B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1031156A (en) * | 1951-01-23 | 1953-06-22 | Feldmu Hle S A | Device for winding and further processing of rayon |
| EP0078978A1 (en) * | 1981-10-30 | 1983-05-18 | TEIJIN SEIKI CO. Ltd. | Bobbin holder |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3101339A1 (en) | 2019-10-01 | 2021-04-02 | E-Tex | Wire spool mandrel |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3760735D1 (en) | 1989-11-16 |
| EP0250348B1 (en) | 1989-10-11 |
| ES2011819B3 (en) | 1990-02-16 |
| US4765562A (en) | 1988-08-23 |
| JPS62299525A (en) | 1987-12-26 |
| FR2600315B1 (en) | 1988-08-12 |
| JPH07107207B2 (en) | 1995-11-15 |
| FR2600315A1 (en) | 1987-12-24 |
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