EP0085017A2 - Device for drawing, condensing and moving a sliver of fibres in a spinning process - Google Patents
Device for drawing, condensing and moving a sliver of fibres in a spinning process Download PDFInfo
- Publication number
- EP0085017A2 EP0085017A2 EP83420007A EP83420007A EP0085017A2 EP 0085017 A2 EP0085017 A2 EP 0085017A2 EP 83420007 A EP83420007 A EP 83420007A EP 83420007 A EP83420007 A EP 83420007A EP 0085017 A2 EP0085017 A2 EP 0085017A2
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- EP
- European Patent Office
- Prior art keywords
- fibers
- condenser
- wick
- guide
- guide surface
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- 238000009987 spinning Methods 0.000 title claims abstract description 13
- 239000000835 fiber Substances 0.000 claims abstract description 30
- 230000005494 condensation Effects 0.000 claims description 9
- 238000009833 condensation Methods 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
- D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
- D01H5/70—Constructional features of drafting elements
- D01H5/72—Fibre-condensing guides
Definitions
- the present invention relates to an improvement made to the devices used for drawing a wick of fibers during a spinning operation making it possible to transform it into a yarn. It relates more particularly to an improved device, which associated with a drawing device proper, makes it possible to condense, transport and optionally give additional drawing to the wick of substantially parallelized fibers leaving said drawing device.
- the device according to the invention makes it possible to solve these problems.
- the invention therefore relates to a device for drawing a wick of fibers during a spinning operation making it possible to transform it into a yarn, device of the type according to which a condenser element is arranged in succession.
- said condensing element is in the form of a movable guide surface on which the fibers are delivered tangentially, said guide surface allowing both to exert a tensile force on the end of the fibers delivered by the stretching system and limit the torsional rise communicated by the spinning system.
- the movable guide surface is subjected to the action of a stream of fluid, air for example, the flow of which is such that it promotes, in cooperation with said surface guide, transport and condensation of fibers.
- a stream of fluid air for example, the flow of which is such that it promotes, in cooperation with said surface guide, transport and condensation of fibers.
- This flow of fluid can be obtained, for example, by subjecting the guide surface to a vacuum.
- the action of fluid flow on the guide surface is preferably suppressed in the zone which follows the point where the condensation function has been carried out, that is to say in other words, substantially from from the point where the twist imparted by the spinning system is stopped by said guide surface.
- the condenser element according to the invention is in the form of a rotary guide, said guide comprising at its periphery an open groove, substantially V-shaped, the bottom of this groove being pierced with orifices connected to a suction source, suction which is suppressed in the area following the point where the stretched wick is condensed and starts to be twisted.
- the orifices can be arranged in different configurations, for example aligned, or even. be in the form of a sinusoid.
- the faces of the groove can be more or less spaced from one another and form between them an angle which can range from 30 to 160 ° but which, preferably, is generally between 60 and 160 °.
- the distance between the outlet of the drawing system itself and the point of contact of the fibers with the surface of the condenser device according to the invention will be adjusted so as to be as small as possible when only desired condense the wick, whereas, on the other hand, if you wish to communicate an additional stretch to said wick by moving the condenser faster than the feed speed thereof, it will be necessary to adapt this distance as a function of the length treated fibers.
- the condenser guide according to the invention is in the form of a rotary guide, it is advantageously positioned at the outlet of the drawing system so that the path of the wick in the bottom of the groove of this guide preferably forms an angle between 30 and 90 °.
- the suppression of the action of the flow of fluid on the guide surface, when such a flow is used can be obtained in different ways, for example by arranging a fixed cover, either inside or outside, making it possible to close off orifices that said guide surface has, possibly using a suction device for example, acting only on part of the movement of said surface, for example on part of the rotation of the guide when the latter is rotary.
- the device for drawing a wick of fibers (1) from a source feed not shown consists, on the one hand, by a conventional drawing train (2) comprising, for example, a pair of food cylinders (3), a sleeve system (4) and a pair of cylinders drawing (5).
- the drawing of the wick (1) is carried out between these elements by communicating to them different speeds.
- a condenser guide (6) at the output of the stretching device (2), therefore in this case in the immediate vicinity of the cylinders (5), is arranged a condenser guide (6), two embodiments of which are illustrated in the figures. 3,4 and 5.
- This condenser guide (6) is rotated at a speed which can either be equal to the speed Vl of output from the wick of the cylinders (5), or possibly be different.
- the speed V2 is equal to the speed V1
- the device according to the invention makes it possible to condense the wick (2) in the width direction.
- V2 is greater than V1
- the condenser guide then serving as an element for the temporary accumulation of fibers which will be called up in spurts by the rewinding.
- This condenseun guide (6) has a peripheral groove (7) having a V-shaped section whose branches form an angle of 60 ° between them. Holes (15) are made in the bottom of this groove (7).
- An internal suction is carried out inside the condenser disc (6). Downstream of said condenser (6) is arranged a conventional spinning system (8) with ring and slider.
- the condenser system (6) is arranged, at the outlet of the drawing cylinders (5), so that the fibers (1) are in contact with the bottom of the groove (7) at an angles of at least 30 °.
- the supply of the stretched wick of fiber (1) to the condenser disc (6) is made at an angle, the wire formed being called to the winding system (8) vertically.
- the suction is suppressed, for example by using a fixed cover system (9) arranged inside the guide.
- FIG. 3 illustrates an exemplary embodiment of such a condenser guide.
- the actual guide (6) is mounted, by means of bearings (10) on a fixed shaft (11).
- the drive of the disc (6) is obtained for example by means of a tangential belt (12).
- the wall (11) has an internal recess (13) and is connected to a suction source, not shown.
- the internal cavity (14) of the disc (6) is subjected to a vacuum, the outside air being drawn through the orifices (15) provided at the bottom of the groove (7).
- a flow of fluid is created on the surface of the guide which tends to exert a tensile force on the end of the fibers.
- an internal cover (9) is formed on the fixed shaft (11).
- FIGS 4 and 5 illustrate another embodiment of such a condenser disc (6).
- the disc (6) is mounted at the end of a shaft (16) rotated by a drive pulley (17) and supported by a bearing (18). As before, it has a V-shaped peripheral groove (7), the bottom of which is pierced with orifices (15).
- the suction is obtained by means of a conduit (19) whose outlet orifice (20) is in the form of an arc making it possible to locate the suction upstream of the from the point where the condensation function is performed.
- FIG. 6 illustrates a variant of a condenser disc (6) according to the invention.
- the peripheral groove (7) is also V- shaped but whose branches are much more apart than previously and form between them, in this case, an angle of about 160 °.
- the orifices (15) provided in the bottom of this groove (7) are arranged in the form of a sinusoid.
- the implementation of these devices is as follows.
- the wick of fibers (1) is drawn in a conventional manner inside the drawing system (2) and at the exit of the last pair of cylinders (5) of this system, the parallelized fibers are delivered inside of the groove (7) of the condenser guide (6) where they are pressed against the bottom of the V-shaped groove due to the internal depression and the rotation of this guide.
- the torsion communicated by the winding spindle (8) rises freely to be blocked progressively from point A2, this torsion however being blocked on the surface of the guide and not reaching the outlet of the delivery cylinders (5).
- the invention has been described using as a spinning system, a conventional ring and slider system.
- any other device could be envisaged allowing to make fiber yarns.
- the device according to the invention could be arranged upstream of a system making it possible to communicate an interlacing, a false twist or an alternating twist to a wire. It could also be envisaged to process a plurality of threads in parallel and to combine them on a single winding system by assembling them, for example, by twisting, self-twisting or any other equivalent system.
- the invention is not limited to obtaining single yarns, but it could be envisaged to associate such a device with any other conventional device for the manufacture of yarns, for example to provide, upstream of the last pair of stretching cylinders (5 supplying an additional wire intended to constitute a core.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
Dispositif pour l'étirage d'une mèche de fibres (1) lors d'une opération de filature permettant de la transformer en filé du type selon lequel un élément condenseur est disposé à la suite du système d'étirage proprement dit (2). Selon l'invention, ledit élément condenseur (6) se présente sous la forme d'une surface de guidage mobile sur laquelle les fibres (1) sont délivrées tangentiellement et qui, d'une part, tend à exercer une force de traction sur l'extrémité desdites fibres et d'autre part, limite la remontée de torsion communiquée par le système de filature.Device for drawing a wick of fibers (1) during a spinning operation making it possible to transform it into a yarn of the type according to which a condenser element is arranged following the drawing system proper (2). According to the invention, said condenser element (6) is in the form of a movable guide surface on which the fibers (1) are delivered tangentially and which, on the one hand, tends to exert a tensile force on the 'end of said fibers and on the other hand, limits the rise in torsion communicated by the spinning system.
Description
La présente invention concerne un perfectionnement apporté aux dispositifs utilisés pour l'étirage d'une mèche de fibres lors d'une opération de filature permettant de la transformer en filé. Elle concerne plus particulièrement un dispositif perfectionné, qui associé à un dispositif d'étirage proprement dit, permet de condenser, transporter et éventuellement donner un étirage additionnel à la mèche de fibres sensiblement parallé- lisée sortant dudit dispositif d'étirage.The present invention relates to an improvement made to the devices used for drawing a wick of fibers during a spinning operation making it possible to transform it into a yarn. It relates more particularly to an improved device, which associated with a drawing device proper, makes it possible to condense, transport and optionally give additional drawing to the wick of substantially parallelized fibers leaving said drawing device.
L'un des principaux problèmes qui se pose actuellement lors des différentes opérations de filature pour l'obtention d'un filé de fibres, est celui de l'opération d'étirage. En effet, pour obtenir un filé régulier, il est impératif de procéder à une succession d'opérations d'étirage et de doublage de mèches. De telles opérations, non seulement diminuent la productivité mais également conduisent à une immobilisation de matière et à un investissement important de matériel.One of the main problems which currently arises during the various spinning operations for obtaining a yarn of fibers is that of the drawing operation. Indeed, to obtain a regular yarn, it is imperative to carry out a succession of operations of drawing and doubling of locks. Such operations not only reduce productivity but also lead to the immobilization of material and a significant investment in material.
Depuis très longtemps, les techniciens recherchent des solutions permettant de condenser les fibres dans le sens de la largeur à la sortie du dispositif d'étirage proprement dit et ce, sans diminuer la régularité des filés obtenus. Par ailleurs, on cherche à augmenter le taux d'étirage susceptible d'être appliqué à la mèche.For a very long time, technicians have been looking for solutions which make it possible to condense the fibers in the width direction at the outlet of the drawing device proper, without reducing the regularity of the yarns obtained. Furthermore, it is sought to increase the rate of stretching which can be applied to the wick.
Parmi les solutions proposées à ce jour, celles faisant l'objet des brevets français 1 044 932, 1 117 278 et 1 503 693 semblent particulièrement séduisantes. Cependant, il convient de noter qu'elles n'ont pas été adoptées de manière industrielle, ce qui peut s'expliquer par le fait qu'elles sont relativement complexes à mettre en oeuvre et qu'elles ne résolvent pas de manière satisfaisante le problème de la condensation et du transport de la mèche de fibres après étirage pour l'amener au moyen permettant de lui donner de la cohésion c'est-à-dire en-général, de la torsion.Among the solutions proposed to date, those covered by French patents 1,044,932, 1,117,278 and 1,503,693 seem particularly attractive. However, it should be noted that they were not adopted industrially, which can be explained by the fact that they are relatively complex to implement and that they do not solve the problem satisfactorily. condensation and transport of the wick of fibers after drawing to bring it to the means allowing it to be cohesive, that is to say in general, torsion.
Le dispositif selon l'invention permet de résoudre ces problèmes.The device according to the invention makes it possible to solve these problems.
D'une manière générale, l'invention concerne donc un dispositif pour l'étirage d'une mèche de fibres lors d'une opération de filature permettant de la transformer en filé, dispositif du type selon lequel un élément condenseur est disposé à la suite du système d'étirage proprement dit et il se caractérise par le fait que ledit élément condenseur se présente sous la forme d'une surface de guidage mobile sur laquelle les fibres sont délivrées tangentiellement, ladite surface de guidage permettant à la fois d'exercer une force de traction sur l'extrémité des fibres délivrées par le système d'étirage et de limiter la remontée de torsion communiquée par le système de filature.In general, the invention therefore relates to a device for drawing a wick of fibers during a spinning operation making it possible to transform it into a yarn, device of the type according to which a condenser element is arranged in succession. of the drawing system proper and it is characterized in that said condensing element is in the form of a movable guide surface on which the fibers are delivered tangentially, said guide surface allowing both to exert a tensile force on the end of the fibers delivered by the stretching system and limit the torsional rise communicated by the spinning system.
Selon une forme préférentielle de réalisation conforme à l'invention, la surface de guidage mobile est soumise à l'action d'un courant de fluide, air par exemple, dont l'écoulement est tel qu'il favorise, en coopération avec ladite surface de guidage, le transport et la condensation des fibres. Ce courant de fluide peut être obtenu, par exemple, en soumettant la surface de guidage à une dépression. Par ailleurs, l'action de courant de fluide sur la surface de guidage est de préférence supprimée dans la zone qui suit le point où la fonction condensation a été réalisée, c'est-à-dire en d'autres termes, sensiblement à partir du point où la torsion communiquée par le système de filature est arrêtée par ladite surface de guidage.According to a preferred embodiment in accordance with the invention, the movable guide surface is subjected to the action of a stream of fluid, air for example, the flow of which is such that it promotes, in cooperation with said surface guide, transport and condensation of fibers. This flow of fluid can be obtained, for example, by subjecting the guide surface to a vacuum. Furthermore, the action of fluid flow on the guide surface is preferably suppressed in the zone which follows the point where the condensation function has been carried out, that is to say in other words, substantially from from the point where the twist imparted by the spinning system is stopped by said guide surface.
Selon une forme de réalisation, l'élément condenseur selon l'invention se présente sous la forme d'un guide rotatif, ledit guide comportant à sa périphérie une rainure ouverte, sensiblement en forme de V, le fond de cette rainure étant percé d'orifices reliés à une source d'aspiration, aspiration qui est supprimée dans la zone qui suit le point où la mèche étirée est condensée et commence à être tordue. Les orifices peuvent être disposés selon différentes configurations, par exemple alignés, voire même. se présenter sous la forme d'une sinusoïde. De plus, les faces de la rainure peuvent être plus ou moins écartées l'une de l'autre et former entre elles un angle pouvant aller de 30 à 160° mais qui, de préférence, est en général compris entre 60 et 160°.According to one embodiment, the condenser element according to the invention is in the form of a rotary guide, said guide comprising at its periphery an open groove, substantially V-shaped, the bottom of this groove being pierced with orifices connected to a suction source, suction which is suppressed in the area following the point where the stretched wick is condensed and starts to be twisted. The orifices can be arranged in different configurations, for example aligned, or even. be in the form of a sinusoid. In addition, the faces of the groove can be more or less spaced from one another and form between them an angle which can range from 30 to 160 ° but which, preferably, is generally between 60 and 160 °.
Par mesure de simplification, dans la suite de la description, l'invention sera décrite plus particulièrement pour un ensemble d'étirage comportant un système conventionnel à lanières et un système de filature à anneau et curseur. Il est évident que cela n'est pas limitatif et que le perfectionnement conforme à l'invention pourrait être utilisé en association avec tout système permettant d'étirer une mèche de fibres et de la renvider sous forme de filé. Ainsi, par exemple, un tel dispositif est particulièrement adapté pour être utilisé en association avec les systèmes d'étirage du type décrit dans les brevets français 1 044 932, 1 117 278 et 1 503 693, le dispositif selon l'invention étant alors disposé à la sortie du système d'étirage proprement dit de la mèche.By way of simplification, in the following description, the invention will be described more particularly for a drawing assembly comprising a conventional strap system and a ring and slider spinning system. It is obvious that this is not limiting and that the improvement in accordance with the invention could be used in combination with any system making it possible to stretch a wick of fibers and return it in the form of a yarn. Thus, for example, such a device is particularly suitable for use in association with stretching systems of the type described in French patents 1 044 932, 1 117 278 and 1 503 693, the device according to the invention then being arranged at the exit of the actual stretching system from the wick.
Par ailleurs, la distance entre la sortie du système d'étirage proprement dit et le point de contact des fibres avec la surface du dispositif de condenseur selon l'invention, sera réglée de manière à être la plus petite possible lorsque l'on désire seulement condenser la mèche, alors, qu'en revanche, si on désire communiquer un étirage additionnel à ladite mèche en déplaçant le condenseur plus rapidement que la vitesse d'amenée de celle-ci , il conviendra d'adapter cette distance en fonction de la longueur des fibres traitées.Furthermore, the distance between the outlet of the drawing system itself and the point of contact of the fibers with the surface of the condenser device according to the invention, will be adjusted so as to be as small as possible when only desired condense the wick, whereas, on the other hand, if you wish to communicate an additional stretch to said wick by moving the condenser faster than the feed speed thereof, it will be necessary to adapt this distance as a function of the length treated fibers.
De plus, lorsque le guide condenseur selon l'invention se présente sous la forme d'un guide rotatif, il est avantageusement positionné à la sortie du système d'étirage de telle sorte que le trajet de la mèche dans le fond de la rainure de ce guide forme un angle de préférence compris entre 30 et 90°.In addition, when the condenser guide according to the invention is in the form of a rotary guide, it is advantageously positioned at the outlet of the drawing system so that the path of the wick in the bottom of the groove of this guide preferably forms an angle between 30 and 90 °.
Enfin la suppression de l'action du courant de fluide sur la surface de guidage, lorsqu'un tel courant est utilisé, peut être obtenue de différentes manières, par exemple en disposant un cache fixe, soit intérieur, soit extérieur, permettant d'obturer des orifices que comporte ladite suface de guidage soit, éventuellement en utilisant un dispositif, d'aspiration par exemple, n'agissant que sur une partie du déplacement de ladite surface, par exemple sur une partie de la rotation du guide lorsque celui-ci est rotatif.Finally, the suppression of the action of the flow of fluid on the guide surface, when such a flow is used, can be obtained in different ways, for example by arranging a fixed cover, either inside or outside, making it possible to close off orifices that said guide surface has, possibly using a suction device for example, acting only on part of the movement of said surface, for example on part of the rotation of the guide when the latter is rotary.
L'invention et les avantages qu'elle apporte seront cependant mieux compris grâce aux exemples de réalisation donnés ci-appès à titre indicatif mais non limitatif et qui sont illustrés par les schémas annexés dans lesquels :
- - la figure 1 est une vue schématique de côté d'un ensemble d'étirage réalisé conformément à l'invention,
- - la figure 2 est une vue en projection d'un tel système d'étirage,
- - la figure 3 est une coupe longitudinale montrant plus en détail un mode de réalisation d'une surface de guidage mobile utilisée pour la mise en oeuvre de l'invention,
- - les figures 4 et 5 illustrent respectivement en coupe longitudinale et vue de côté partiel, un autre mode de réalisation d'une surface de guidage mobile (ou guide condenseur) conforme à l'invention,
- - la figure 6 illustre un autre mode de réalisation d'une surface de guidage mobile conforme à l'invention.
- FIG. 1 is a schematic side view of a stretching assembly produced in accordance with the invention,
- FIG. 2 is a projection view of such a stretching system,
- FIG. 3 is a longitudinal section showing in more detail an embodiment of a movable guide surface used for implementing the invention,
- FIGS. 4 and 5 respectively illustrate in longitudinal section and partial side view, another embodiment of a movable guide surface (or condenser guide) according to the invention,
- - Figure 6 illustrates another embodiment of a movable guide surface according to the invention.
Dans la suite de la description, et plus particulièrement en ce qui concerne les modes de réalisation illustrés par les figures 3,4, 5 et 6, les mêmes références ont été utilisées pour désigner des éléments similaires ou équivalents.In the following description, and more particularly with regard to the embodiments illustrated in FIGS. 3,4, 5 and 6, the same references have been used to designate similar or equivalent elements.
Si l'on se reporte aux figures annexées et plus particulièrement aux figures 1 et 2, le dispositif d'étirage d'une mèche de fibres (1) provenant d'une source d'alimentation non représentée, est constitué, d'une part, par un train d'étirage conventionnel (2) comportant, par exemple, une paire de cylindres alimentaires (3), un système à manchons (4) et une paire de cylindres d'étirage (5).Referring to the appended figures and more particularly to Figures 1 and 2, the device for drawing a wick of fibers (1) from a source feed not shown, consists, on the one hand, by a conventional drawing train (2) comprising, for example, a pair of food cylinders (3), a sleeve system (4) and a pair of cylinders drawing (5).
L'étirage de la mèche (1) est réalisé entre ces éléments en leur communiquant des vitesses différentes.The drawing of the wick (1) is carried out between these elements by communicating to them different speeds.
Conformément à l'invention, à la sortie du dispositif d'étirage (2), donc dans le cas présent à proximité imméditate des cylindres (5), est disposé un guide condenseur (6) dont deux modes de réalisation sont illustrés par les figures 3,4 et 5. Ce guide condenseur (6) est entraîné en rotation à une vitesse qui peut être soit égale à la vitesse Vl de sortie de la mèche des cylindres (5), soit éventuellement être différente. Lorsque la vitesse V2 est égale à la vitesse Vl, le dispositif selon l'invention permet de condenser la mèche (2) dans le sens de la largeur. En revanche, si V2 est supérieure à Vl, il est possible simultanément de condenser ladite mèche et d'assurer un étirage additionnel. Il peut également être envisagé, par exemple pour réaliser des fils fantaisie, d'avoir une vitesse V2 inférieure à la vitesse Vl, le guide condenseur servant alors d'élément d'accumulation temporaire des fibres qui seront appelées par à coups par le système de renvidage.According to the invention, at the output of the stretching device (2), therefore in this case in the immediate vicinity of the cylinders (5), is arranged a condenser guide (6), two embodiments of which are illustrated in the figures. 3,4 and 5. This condenser guide (6) is rotated at a speed which can either be equal to the speed Vl of output from the wick of the cylinders (5), or possibly be different. When the speed V2 is equal to the speed V1, the device according to the invention makes it possible to condense the wick (2) in the width direction. On the other hand, if V2 is greater than V1, it is possible simultaneously to condense said wick and to provide additional stretching. It can also be envisaged, for example to produce fancy yarns, to have a speed V2 lower than the speed V1, the condenser guide then serving as an element for the temporary accumulation of fibers which will be called up in spurts by the rewinding.
Ce guide condenseun (6) comporte une rainure périphérique (7) ayant une section en forme de V dont les branches forment entre elles un angle de 60°. Des orifices (15) sont pratiqués dans le fond de cette rainure (7). Une aspiration interne est réalisée à l'intérieur du disque condenseur (6). En aval dudit condenseur (6) est disposé un système de filature conventionnel (8) à anneau et curseur. Le système condenseur (6) est disposé, à la sortie des cylindres d'étirage (5), de telle sorte que les fibres (1) soient en contact avec le fond de la gorge (7) sur un angles d'au moins 30°. De préférence, l'amenée de la mèche de fibres étirée (1) au disque condenseur (6) est réalisée en biais, le fil formé étant appelé au système de renvidage (8) verticalement.This condenseun guide (6) has a peripheral groove (7) having a V-shaped section whose branches form an angle of 60 ° between them. Holes (15) are made in the bottom of this groove (7). An internal suction is carried out inside the condenser disc (6). Downstream of said condenser (6) is arranged a conventional spinning system (8) with ring and slider. The condenser system (6) is arranged, at the outlet of the drawing cylinders (5), so that the fibers (1) are in contact with the bottom of the groove (7) at an angles of at least 30 °. Preferably, the supply of the stretched wick of fiber (1) to the condenser disc (6) is made at an angle, the wire formed being called to the winding system (8) vertically.
Par ailleurs, dans la zone qui suit immédiatement le point où la fonction condensation a été remplie, c'est-à-dire approximativement au niveau du point référencé Al aux figures 1 et 2, et ce sur une distance qui peut être variable, l'aspiration est supprimée, par exemple en utilisant un système de cache fixe (9) disposé à l'intérieur du guide.Furthermore, in the area immediately following the point where the condensation function has been fulfilled, that is to say approximately at the point referenced A l in FIGS. 1 and 2, and this over a distance which can be variable, the suction is suppressed, for example by using a fixed cover system (9) arranged inside the guide.
La figure 3 illustre un exemple de réalisation d'un tel guide condenseur.FIG. 3 illustrates an exemplary embodiment of such a condenser guide.
Dans ce mode de réalisation, le guide proprement dit (6) est monté, au moyen de roulements (10) sur un arbre (11) fixe. L'entraînement du disque (6) est obtenu par exemple au moyen d'une courroie tangentielle (12). La paroi (11) comporte un évidement interne (13) et est reliée à une source d'aspiration non représentée. De cette manière, la cavité interne (14) du disque (6) est soumise à une dépression, l'air extérieur étant appelé au travers des orifices (15) prévus au fond de la gorge (7). De cette manière, on crée à la surface du guide un écoulement de fluide qui tend à exercer une force de traction sur l'extrémité des fibres. De préférence, afin d'obtenir une zone sans dépression, en aval du point Al où la fonction condensation de la mèche a été réalisée, un cache interne (9) est formé sur l'arbre fixe (11).In this embodiment, the actual guide (6) is mounted, by means of bearings (10) on a fixed shaft (11). The drive of the disc (6) is obtained for example by means of a tangential belt (12). The wall (11) has an internal recess (13) and is connected to a suction source, not shown. In this way, the internal cavity (14) of the disc (6) is subjected to a vacuum, the outside air being drawn through the orifices (15) provided at the bottom of the groove (7). In this way, a flow of fluid is created on the surface of the guide which tends to exert a tensile force on the end of the fibers. Preferably, in order to obtain a vacuum-free zone, downstream from point A1 where the condensation function of the wick has been achieved, an internal cover (9) is formed on the fixed shaft (11).
Les figures 4 et 5 illustrent une autre forme de réalisation d'un tel disque condenseur (6). Dans ce mode de réalisation, le disque (6) est monté à l'extrémité d'un arbre (16) entraîné en rotation par une poulie motrice (17) et supporté par un palier (18). Comme précédemment, il présente une rainure périphérique (7) en forme de V dont le fond est percé d'orifices (15). L'aspiration est obtenue au moyen d'un conduit (19) dont l'orifice de sortie (20) se présente sous la forme d'un arc permettant de localiser l'aspiration en amont du du point où la fonction condensation est réalisée.Figures 4 and 5 illustrate another embodiment of such a condenser disc (6). In this embodiment, the disc (6) is mounted at the end of a shaft (16) rotated by a drive pulley (17) and supported by a bearing (18). As before, it has a V-shaped peripheral groove (7), the bottom of which is pierced with orifices (15). The suction is obtained by means of a conduit (19) whose outlet orifice (20) is in the form of an arc making it possible to locate the suction upstream of the from the point where the condensation function is performed.
La figure 6 illustre une variante d'un disque condenseur (6) conforme à l'invention. Dans cette variante, la rainure périphérique (7) est également en forme de V mais dont les branches sont beaucoup plus écartées que précédemment et forment entre elles, dans le cas présent, un angle d'environ 160°. Par ailleurs, les orifices (15) prévus dans le fond de cette rainure (7) sont disposés sous la forme d'une sinusoïde.FIG. 6 illustrates a variant of a condenser disc (6) according to the invention. In this variant, the peripheral groove (7) is also V- shaped but whose branches are much more apart than previously and form between them, in this case, an angle of about 160 °. Furthermore, the orifices (15) provided in the bottom of this groove (7) are arranged in the form of a sinusoid.
La mise en oeuvre de ces dispositifs est la suivante. La mèche de fibres (1) est étirée de manière conventionnelle à l'intérieur du système d'étirage (2) et à la sortie de la dernière paire de cylindres (5) de ce système, les fibres parallélisées sont délivrées à l'intérieur de la gorge (7) du guide condenseur (6) où elles sont plaquées contre le fond de la rainure en forme de V du fait de la dépression interne et de la rotation de ce guide. La torsion communiquée par la broche de renvidage (8) remonte librement pour être bloquée progressivement à partir du point A2, cette torsion étant cependant bloquée sur la surface du guide et n'atteignant pas la sortie des cylindres délivreurs (5).The implementation of these devices is as follows. The wick of fibers (1) is drawn in a conventional manner inside the drawing system (2) and at the exit of the last pair of cylinders (5) of this system, the parallelized fibers are delivered inside of the groove (7) of the condenser guide (6) where they are pressed against the bottom of the V-shaped groove due to the internal depression and the rotation of this guide. The torsion communicated by the winding spindle (8) rises freely to be blocked progressively from point A2, this torsion however being blocked on the surface of the guide and not reaching the outlet of the delivery cylinders (5).
On a constaté que grâce à un tel dispositif, il était possible d'obtenir une condensation et éventuellement un étirage additionnel de la mèche de fibres et ce, sans nuire à la qualité finale du filé formé. Comme dit précédemment, si la vitesse périphérique du condenseur (6) peut être réglée de manière à être égale à la vitesse de sortie de la mèche, il peut être envisagé d'avoir une vitesse supérieure lorsque l'on désire augmenter le taux d'étirage, voire même, éventuellement, avoir une vitesse légèrement inférieure pour des applications particulières telles que par exemple l'obtention de fils fantaisie.It has been found that thanks to such a device, it was possible to obtain condensation and possibly additional drawing of the wick of fibers, without damaging the final quality of the yarn formed. As said previously, if the peripheral speed of the condenser (6) can be adjusted so as to be equal to the speed of exit of the wick, it can be envisaged to have a higher speed when it is desired to increase the rate of drawing, or even, possibly, having a slightly lower speed for particular applications such as for example obtaining fancy yarns.
Dans la présente description, l'invention a été décrite en utilisant comme système de filature, un système à anneau et curseur conventionnel. Bien entendu, il pourrait être envisagé tout autre dispositif permettant de fabriquer des filés de fibres. Par exemple, le dispositif conforme à l'invention pourrait être disposé en amont d'un système permettant de communiquer un entrela- çage, une fausse torsion ou une torsion alternée à un fil. Il pourrait être également envisagé de traiter en parallèle une pluralité de fils et de les réunir sur un seul et même système de renvidage en les assemblant, par exemple, par torsion, auto-torsion ou tout autre système équivalent.In the present description, the invention has been described using as a spinning system, a conventional ring and slider system. Of course, any other device could be envisaged allowing to make fiber yarns. For example, the device according to the invention could be arranged upstream of a system making it possible to communicate an interlacing, a false twist or an alternating twist to a wire. It could also be envisaged to process a plurality of threads in parallel and to combine them on a single winding system by assembling them, for example, by twisting, self-twisting or any other equivalent system.
Bien entendu, l'invention n'est pas limitée à l'obtention de filés simples, mais il pourrait être envisagé associer un tel dispositif à tout autre dispositif conventionnel pour la fabrication de filés, par exemple de prévoir, en amont de la dernière paire de cylindres étireurs (5 l'amenée d'un fil additionnel destiné à constituer une âme.Of course, the invention is not limited to obtaining single yarns, but it could be envisaged to associate such a device with any other conventional device for the manufacture of yarns, for example to provide, upstream of the last pair of stretching cylinders (5 supplying an additional wire intended to constitute a core.
Claims (8)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8201383 | 1982-01-26 | ||
| FR8201383A FR2520389A1 (en) | 1982-01-26 | 1982-01-26 | DEVICE FOR STRETCHING, CONDENSING AND TRANSPORTING A FIBER BIT DURING A SPINNING OPERATION |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0085017A2 true EP0085017A2 (en) | 1983-08-03 |
| EP0085017A3 EP0085017A3 (en) | 1983-11-23 |
| EP0085017B1 EP0085017B1 (en) | 1986-04-09 |
Family
ID=9270439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP83420007A Expired EP0085017B1 (en) | 1982-01-26 | 1983-01-20 | Device for drawing, condensing and moving a sliver of fibres in a spinning process |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US4488397A (en) |
| EP (1) | EP0085017B1 (en) |
| JP (1) | JPS58121379U (en) |
| KR (1) | KR840003304A (en) |
| DE (1) | DE3362844D1 (en) |
| ES (1) | ES519242A0 (en) |
| FR (1) | FR2520389A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0690157A1 (en) * | 1994-06-30 | 1996-01-03 | Maschinenfabrik Rieter Ag | Ring spinning machine for condensed yarn |
| EP0690158A1 (en) * | 1994-06-30 | 1996-01-03 | Maschinenfabrik Rieter Ag | Ring spinning machine with a ring having an oblique flange |
| WO1998039505A3 (en) * | 1997-03-03 | 1998-12-10 | Csm Gmbh | Drawing mechanism for spinning frames with a fibre bunching zone and ring-spinning frame equipped therewith |
| CN1740414B (en) * | 2004-08-27 | 2012-01-25 | 里特机械公司 | Apparatus for producing folded yarn |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8319928D0 (en) * | 1983-07-25 | 1983-08-24 | Hollingsworth Uk Ltd | Treatment of fibrous materials |
| FR2560230B1 (en) * | 1984-02-24 | 1987-12-04 | Asa Sa | PROCESS FOR OBTAINING A FIBER FILE |
| WO1986001842A1 (en) * | 1984-09-21 | 1986-03-27 | National Research Development Corporation | Spinning of yarn |
| CH665854A5 (en) * | 1985-01-17 | 1988-06-15 | Heberlein Hispano Sa | DEVICE FOR PRODUCING A WINDING YARN. |
| FR2583783A1 (en) * | 1985-06-25 | 1986-12-26 | Asa Sa | DEVICE FOR DRAWING, CONDENSING AND TRANSPORTING A WICK OF FIBERS DURING A SPINNING OPERATION. |
| DE3741431A1 (en) * | 1987-12-08 | 1989-06-22 | Zinser Textilmaschinen Gmbh | Method and apparatus for the spinning of a yarn |
| GB8901416D0 (en) * | 1989-01-23 | 1989-03-15 | Lawrence Carl A | Preparation of fibres for spinning |
| DE3927739A1 (en) * | 1989-08-23 | 1991-02-28 | Fritz Stahlecker | METHOD AND DEVICE FOR WRAPPING SPIN |
| US5243813A (en) * | 1989-10-04 | 1993-09-14 | Fritz Stahlecker | Process and an arrangement for false-twist spinning |
| DE3939777A1 (en) * | 1989-12-01 | 1991-06-06 | Fritz Stahlecker | DEVICE FOR WRAPPING SPINNING |
| DE4323472C2 (en) * | 1993-07-14 | 1997-08-07 | Inst F Textil Und Verfahrenste | Double apron drafting system |
| AT408668B (en) * | 1994-06-23 | 2002-02-25 | Rieter Ag Maschf | RING SPIDER AND RING SPIDER |
| DE19514408C5 (en) * | 1994-06-23 | 2007-08-16 | Maschinenfabrik Rieter Ag | Ring spinning process |
| IT1307759B1 (en) * | 1998-03-31 | 2001-11-19 | Schurr Stahlecker & Grill | DEVICE TO CONDENSATE AN IRONED FIBER COMPOSITE. |
| CH693036A5 (en) * | 1998-04-29 | 2003-01-31 | Rieter Ag Maschf | Spinning machine with compression device. |
| CH693214A5 (en) * | 1998-07-14 | 2003-04-15 | Schurr Stahlecker & Grill | Apparatus for compressing a stretched fiber structure. |
| US6209300B1 (en) | 1999-01-14 | 2001-04-03 | Fritz Stahlecker | Apparatus for pneumatic condensing of a drafted fiber strand and method of making and using same |
| CN1294308C (en) * | 2000-09-01 | 2007-01-10 | 里特机械公司 | Weaving machine with compression equipment |
| KR100403483B1 (en) * | 2000-11-14 | 2003-11-01 | 한국섬유기술연구소 | Method and device for fine hairs decrease in spinning mechine |
| FR2817878A1 (en) * | 2000-12-12 | 2002-06-14 | Schlumberger Cie N | Assembly to reduce hairiness in spun yarn has a wetting unit, downstream of the drawing unit and upstream of the yarn guide, to impregnate the yarn material with water |
| DE10145671A1 (en) * | 2001-09-11 | 2003-03-27 | Rieter Ag Maschf | Spinning effect yarns with variable appearance along their length involves controlled variation of the effectiveness of the sliver compacting zone |
| DE10236450A1 (en) * | 2002-08-08 | 2004-02-19 | Maschinenfabrik Rieter Ag | Spinning machine with multi-stage drafting compression unit has a speed control unit linked to the drafting roller drive |
| CN102181976B (en) * | 2011-04-26 | 2012-12-05 | 新疆溢达纺织有限公司 | Synchronous humidifying wet spinning device |
| CN102965773B (en) * | 2012-12-21 | 2015-12-02 | 福建省金泰纺织有限公司 | Spinning apparatus of a kind of bright yarn and uses thereof |
| CN103603102A (en) * | 2013-09-29 | 2014-02-26 | 陈伟雄 | Method and device for ring spinning by using negative-pressure air flow groove-gathering method |
| CH709694A1 (en) * | 2014-05-26 | 2015-11-30 | Rieter Ag Maschf | Spinning preparation machine for preparing a roving. |
| CN104389055B (en) * | 2014-11-21 | 2016-07-06 | 安徽华茂纺织股份有限公司 | It is exclusively used in RING SPINNING and reduces the swiveling wheel of cop filoplume |
| CN104746189B (en) * | 2015-03-04 | 2017-01-11 | 武汉纺织大学 | Negative pressure guide capturing type ring spinning method |
| CN104878484B (en) * | 2015-05-19 | 2017-02-22 | 武汉纺织大学 | Directed accurate selection type yarn hairiness removing device |
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| DE690560C (en) * | 1938-08-21 | 1940-04-29 | Bernhardt Fa F | Device for compressing a sliver |
| GB678288A (en) * | 1949-06-29 | 1952-09-03 | Ambler Superdraft Ltd | Improvements in or relating to the drafting of textile fibres |
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| EP0022421A1 (en) * | 1979-07-09 | 1981-01-14 | Centre Technique Industriel dit INSTITUT TEXTILE DE FRANCE | Method and apparatus for producing a yarn having along its length alternating opposite twist zones |
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- 1982-01-26 FR FR8201383A patent/FR2520389A1/en active Granted
-
1983
- 1983-01-17 US US06/458,713 patent/US4488397A/en not_active Expired - Lifetime
- 1983-01-20 EP EP83420007A patent/EP0085017B1/en not_active Expired
- 1983-01-20 DE DE8383420007T patent/DE3362844D1/en not_active Expired
- 1983-01-21 KR KR1019830000249A patent/KR840003304A/en not_active Application Discontinuation
- 1983-01-25 ES ES519242A patent/ES519242A0/en active Granted
- 1983-01-26 JP JP1983009782U patent/JPS58121379U/en active Granted
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|---|---|---|---|---|
| DE690560C (en) * | 1938-08-21 | 1940-04-29 | Bernhardt Fa F | Device for compressing a sliver |
| GB678288A (en) * | 1949-06-29 | 1952-09-03 | Ambler Superdraft Ltd | Improvements in or relating to the drafting of textile fibres |
| GB827787A (en) * | 1957-06-13 | 1960-02-10 | Fine Spinners & Doublers Ltd | Improvements in "four-fold preventors" for yarn doubling frames |
| FR1454563A (en) * | 1965-08-18 | 1966-10-07 | Roannais De Const Textiles Sa | Thread guides for twisting machines |
| EP0022421A1 (en) * | 1979-07-09 | 1981-01-14 | Centre Technique Industriel dit INSTITUT TEXTILE DE FRANCE | Method and apparatus for producing a yarn having along its length alternating opposite twist zones |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0690157A1 (en) * | 1994-06-30 | 1996-01-03 | Maschinenfabrik Rieter Ag | Ring spinning machine for condensed yarn |
| EP0690158A1 (en) * | 1994-06-30 | 1996-01-03 | Maschinenfabrik Rieter Ag | Ring spinning machine with a ring having an oblique flange |
| WO1998039505A3 (en) * | 1997-03-03 | 1998-12-10 | Csm Gmbh | Drawing mechanism for spinning frames with a fibre bunching zone and ring-spinning frame equipped therewith |
| CN1740414B (en) * | 2004-08-27 | 2012-01-25 | 里特机械公司 | Apparatus for producing folded yarn |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0085017A3 (en) | 1983-11-23 |
| JPS58121379U (en) | 1983-08-18 |
| KR840003304A (en) | 1984-08-20 |
| FR2520389A1 (en) | 1983-07-29 |
| EP0085017B1 (en) | 1986-04-09 |
| US4488397A (en) | 1984-12-18 |
| ES8400157A1 (en) | 1983-10-16 |
| ES519242A0 (en) | 1983-10-16 |
| FR2520389B1 (en) | 1984-12-14 |
| JPS6241981Y2 (en) | 1987-10-27 |
| DE3362844D1 (en) | 1986-05-15 |
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