FLUID SPINNING SYSTEM

Description

Purpose of the invention

[0001] The present invention is related to a new spinning system within a fluid medium, that transforms the fibres into yarns by utilizing a fluid medium in which the fibres are introduced, moved and transformed into yam (spinning) by means of the control and the variation of determined parameters of the fluid system and the movement control of the fibres to spin, and at the same time they can receive in said fluid medium a physical and chemical treatment from the known ones in the textile sector, simultaneously to the carrying out of the spinning.

Background

[0002] There exist several systems using fibres: The conventional spinning system or ring spinning, open end spinning, friction or Dref spinning, etc. None of these systems uses a fluid medium to transform the fibres into yarn, and the majority utilizes mechanical systems to spin. A fluid vortex spinning system is known from US 3,676,992 A but such a system does not foresee that a fluid circulates in a closed system under pressure, thereby limiting the possibilities of drawing, doubling, and twisting the fibres.

Description of the invention

[0003] The present invention consists of a system according to claim 1, which produces and treats yam from fibres through the establishment, variation, and control of static and dynamic parameters of the fluid in which the fibres have been introduced, and at the same time causes physical overlaying effects, drawing out, twisting, in the fibres themselves.

[0004] The system essentially has a set of fluid pipes in which said fluid circulates in a closed system under pressure, in the interior of which exist one or several intakes through which, dragged by a fluid, the fibres are introduced in the fluid system; there also exist in the fluid circuit one or several outlets for the yarn. This circuit has some driving mechanism of the fluid, for example, pumps, in such a way the one can modify all of the variables that affect the speed, the rate of flow, the pressure, etc. and the intakes have the possibility to change the surface of the clearance, which can also be done in other sites of the circuit, as well as the predetermined modification of the direction of the fluid stream to cause the desired movements of the textile fibres.

[0005] The spinning process is produced when the fibres are introduced dragged by a fluid medium through one or several orifices or nozzles perpendicular or oblique with respect to the pipe axis, within the closed circuit of fluid under pressure, from the moment at which this is carried out, in a combined and programmed form according to the type of yam to be obtained: parallel connections of different orifices or intake nozzles through which fluid under pressure is admitted (with or without fibres), reduction effects, Venturi effects in the interior of the pipes, connexion among different pipes to achieve the overlay or doubling of different fibres, and any other effect known in the state of the art which might be susceptible of being carried out by conventional means in the interior of a fluid which contains some solids (fibres) in suspension. Among these effects there are included: dyeing, steaming, fixing or any other possible treatments of fibres and/or yarn.

[0006] By making a comparison with conventional spinning, we can say that fibres introduced in the fluid medium double or overlay when the two intake nozzles of fluid and fibres are connected in parallel, or two pipes converge at a point, and each time a Venturi effect is used (increasing of speed in the medium as a cause of the diminishing of the clearance) there is carried out a drawing (stretching) of the fibres. This is necessary in order to regularize the fibres and put them one with respect to another as parallel as possible. With the Venturi effect we obtain the effect of reduction of the mass of fibres which circulates within the medium in such a way that the titre (thickness) of the yam will depend on the quantity of fibres in grams for each lineal unit of the section of said yam (titre of the yam).

[0007] Also within the circuit whose pipes might have different geometric forms, among them preferentially the tubular ones, several auxiliary devices can be arranged that might help to arrange the fibres in parallel in the interior of the fluid. These devices can be for example ripplings (card clothings), that provide mechanical help within the fluid to arrange fibres in parallel, fins, deflecting blades, nozzles for the introduction of air under pressure and other fixed or movable elements which permit to modify the direction of the fluid at will.

[0008] The twisting of the yam is carried out through the application driver effects which can be combined or not among themselves and can be applied simultaneously or in deferred phases. The distinct effects and degrees of twisting are achieved through the application of conventional techniques very well known in the technical standard of fluid dynamics, through whose controlled utilization the fluid path diverges, and consequently that of the circulating fibres, a circular movement of the yam around itself is generated by causing the creation of a Coriolis effect, or is carried out a change of direction in any of the three spatial directions (e.g. 180 degrees of deviation, multiple changes of a spiral direction, etc.), all that for applying a controlled twisting motion to the yarn, the above mentioned can be combined with individual changes of the clearance to internally cause Venturi effects, and with the injection of more fibres in determined points.

[0009] The twisting of fibres is produced when the fibres interlace among each other, once they have been attached as parallel as possible one to another. As we mentioned before, that can be achieved through the manipulation of solids and/or through the insertion of new fibres through additional nozzles (with result or not of Venturi effects), in such a way that the fibres remain interlaced and twisted. Once the effect within the system is achieved, the already doubled and/or stretched and/or twisted yam is collected by a folding system which might be a conventional spindle or another folding system that already exists in the market.

[0010] The type of fluid medium might be any of the ones utilized in industrial practice.

[0011] Other desired additional transformations of the yam can be achieved through the utilization of selected fluids for such ends, or through the addition to the fluid system of different fluids. Among them we shall cite all those that implicate modifications in the physical and chemical structure of the fibres and of the resulting yarn. Examples for these transformations might be the dyeing of the yarn, the steaming, the fixing, the bonding or treatment with liquids in order to improve the physical and chemical characteristics of the yarn, superficial treatments or other, to only cite some of all that can be carried out by the textile industry using a fluid medium. The pressure, and the temperature of the fluid used can be diverse in function of what characteristics of the final yarn to be produced are desired.

[0012] All possible effects that exist in the known practice in the textile industry can be applied to a yarn, can also be reproduced in the fluid system of the present invention through the modification of the static and dynamic variables of the fluid system, as mentioned before. For example, one can make slubby yarn by carrying out some stretchings (Venturi effects or a combination of the above described) in a programmed manner within the fluid medium. Other effects might be loops, saw patterns, knots, Lycra insertion, etc.

[0013] The dimensions of the pipes or pipes used for configuring the circuit may be of any kind, and the driving pumps and injection as well as the control elements (pressure gauges, etc.) programming the operations, they can form, together with the required injectors, subsystems that achieve the results in laminated or turbulent form in the interior of the pipe.

Description of the drawings

[0014] For a better understanding of the invention, among the several practical applications that the invention facilitates, there will be shown, based on drawings, in

Fig. 1

a scheme showing the causing of the Venturi effect in a tubular line

Fig. 2

a scheme showing the creation of torsion of some fibres to obtain twisted yarn.

Fig.3

a scheme of a fluid system of the invention with three intake nozzles for fibres and an outlet for yarn

Fig. 4

a schematic view of the fluid injection area, with or without fibres

Preferred embodiment of the invention

[0015] A preferred embodiment of the invention among the multiple practical applications the invention facilitates, will be shown, based mainly on the system scheme shown in fig. 3, as follows.

[0016] The fluid together with the textile fibres it transports is introduced into a pipe assembly through the nozzles I1, I2, 13.

[0017] The injected fluid in 11 undergoes a Venturi effect in E1, when it enters the circuit C1, which causes a stretching of the transported fibres, whereas the fluid with the fibres goes on with it's trajectory until point 1, wherein it joins the fluid with stretched fibres coming from I1 merges with stream coming I2. The fluid in this circuit C1 is driven by the pump B1.

[0018] The injected fluid in I2 undergoes a Venturi effect in E2, when it enters in the circuit C2, which causes a stretching of the transported fibres, whereas the fluid with the fibre continues with it's trajectory until it reaches point 1 wherein it merges with this stream of fluid with stretched fibres coming from I1 and I2 causing the folding or doubling of the fibres coming from I1 and I2. In said point 1, the reduction of the section of the pipe coming from I2 causes, due to the Venturi effect, an additional stretch of the already stretched and folded fibres and coming from I1 and I2; Then the fluid stream with said stretched and bent fibres goes into the inferior horizontal area of the pipe which comes from I2 in a way that is out of alignment with respect to the axis of said pipe thereby causing a vortex effect of the fluid and then agin causes a pre-torsion of the fibres at that point. The fibres transported by the fluid reach point 2 in this circuit C2 are driven by the pump B2.

[0019] The injected fluid in I3 undergoes a Venturi effect in E3 when it enters in the circuit C3, which causes a stretching of the transported fibres, the fibres going on with their run towards point 2 where the fluid with the folded/stretched/pre-twisted fibres coming from I2 joins the stream which comes out from I2 joins the stream again causing a folding or doubling of the fibres and causing also a reduction of the pipe's section coming from 12 and 13 and causing, due to the Venturi effect, an additional stretching of the fibres coming from 12 and 13; Then, the fluid stream with said fibres joins the inferior horizontal zone of the pipe coming from 13 off-centre with respect to the axis of said conduction thereby causing a vortex effect of the fluid which in turn causes a pre-torsion of the fibres at that point. The fibres transported by the fluid reach point 3 where a rotation of the fluid is caused by the Coriolis effect which in turn causes a twisting of the fibres, which already have taken the form of a stretched and twisted yarn, which can be extracted from the pipe through the outlet to be later on wound or collected in any other conventional form. The fluid in this circuit 3 is driven by the pump B3,

[0020] The described preferred embodiment has been carried out only as an example. The fluid spinning system of the invention may show different configurations of circuits, different sizes and very diverse combinations of intake nozzles, stretching zones caused by the Venturi effect, doubling and twisting areas for fibres and yam in function of the kind of material and sizes of the yam to be produced, while the described embodiment does not involve any limiting condition of it's scope.

Claims

1. Fluid spinning system, for spinning all kinds of textile fibres, natural, artificial, and synthetic ones within a fluid medium under pressure, characterized in that it is composed of:

a) a closed conduction unit comprising two or more circuits (c1,c2,c3), which contains a circulating fluid under pressure and textile fibres which are dragged by said fluid, whereby the fibres are spun by the controlled manipulation of said fluid, wherein said conduction unit is equipped with

- nozzles (I1,I2,I3) for injecting fluid, or fluid with textile fibres into the circulating stream, said fluid being injected through the external surface of said conduction unit in determined positions and orientations depending on the type and composition of the yarn to be produced as well as on the operations to be carried out on said textile fibres in the interior of the conductions unit, said nozzles being provided with means for modifying the diameter of the fluid clearance area through them, thereby causing a Venturi effect

- some fixed and/or mobile mechanical elements situated in the interior of said conduction unit, whereby the quantity, form, placement and arrangement of said mechanical elements all depend on the type of yarn to be produced, said mechanical elements enabling to modify the direction, clearance area and speed of the circulating stream and of the textile fibres transported by said fluid, so that said fibres achieve predetermined movements,

- some output ports for the yarn fabricated from said textile fibres to the outside of the conduction unit, for recollection of said yarn,

b) some driving means like pumps (B1,B2,B3) for the circulating stream and for the fluid that goes into said conduction unit through said nozzles

c) programming means for controlling the variables of the fluid system, which are among others, the parameters of the fluid such as the pressure, temperature, viscosity and flow speed, the dimension of the diameter of the clearance area of the nozzles, the configuration and arrangement of said mobile mechanical elements situated in the inner side of said conduction unit, as well as the parameters of another or any other different fluids that are introduced in the fluid system, and

d) control means like for example pressure gauges, for the variables of the fluid system

where said system, due to the creation of some predetermined doubling, drawing, and twisting effects of said fibres within said closed conduction unit induced by simultaneous injection of fibres through several parallel nozzles, changes in direction, pressure, temperature, viscosity and speed of said fluid, renders possible the fabrication of different yarns from textile fibres, and at the same time makes it possible to give the fibres and/or the yam specific treatments like dyeing, steaming, fixing, and many others, whereby said treatments are carried out within the proper fluid system.

Ansprüche

1. Flüssigkeitsspinnsystem zum Spinnen von Textilfasern aller Art, Natur-, Kunst- und Synthetikfasern in einem unter Druck stehenden flüssigen Medium, dadurch gekennzeichnet, dass es besteht aus:

a) einer zwei oder mehr Kreisläufe (c1, c2, c3) umfassenden Leitungseinheit, die eine unter Druck stehende, zirkulierende Flüssigkeit und von dieser Flüssigkeit mitgeführte Fasern beinhaltet, wobei die Fasern durch kontrollierte Steuerung dieser Flüssigkeit gesponnen werden und wobei die genannte Leitungseinheit mit folgenden Komponenten ausgestattet ist:

- Düsen (I1, I2, I3) zum Einspritzen von Flüssigkeit oder Flüssigkeit mit Textilfasern in die Kreislaufströmung, wobei die genannte Flüssigkeit abhängig von der Art und Zusammensetzung des herzustellenden Garns sowie auch von den Arbeitsvorgängen, die im Inneren der Leitungseinheit mit den genannten Textilfasern durchzuführen sind, an bestimmten Stellen und in bestimmten Ausrichtungen durch die Außenfläche der genannten Leitungseinheit eingespritzt wird, und wobei die genannten Düsen über Mittel zur Änderung des Durchmessers des Strömungsquerschnitts derselben verfügen, wodurch in ihnen ein Venturi-Effekt entsteht,

- einige im Inneren der genannten Leitungseinheit angeordnete, stationäre und/oder bewegliche mechanische Bauteile, wobei die Anzahl, Form, Anbringung und Anordnung dieser mechanischen Bauteile von der Art des herzustellenden Garns abhängt, wodurch die genannten mechanischen Bauteile in der Lage sind, Richtung, Strömungsquerschnitt und Fließgeschwindigkeit der Kreislaufströmung und der in der genannten Flüssigkeit mitgeführten Textilfasern zu ändern, so dass diese Fasern bestimmte Bewegungen ausführen,

- Austrittsöffnungen für das aus diesen Textilfasern hergestellte Garn zur Übernahme dieses Garns außerhalb der Leitungseinheit;

b) Antriebsmitteln wie Pumpen (B1, B2, B3) für die Kreislaufströmung und für die Flüssigkeit, die über die genannten Düsen in die Leitungseinheit eingebracht wird,

c) Programmiermitteln zur Steuerung der Variablen des Flüssigkeitssystems und zwar, unter anderem, der Flüssigkeitsparameter wie Druck, Temperatur, Viskosität und Fließgeschwindigkeit, der Größe des Durchmessers des Strömungsquerschnitts der Düsen, der Ausgestaltung und Anordnung der erwähnten, im Inneren der Leitungseinheit angeordneten beweglichen mechanischen Elemente sowie der Parameter einer weiteren oder irgendwelcher anderer unterschiedlicher Flüssigkeiten, die in das Flüssigkeitssystem eingeleitet werden, und

d) Kontrollmitteln wie etwa Druckmesser für die Variablen des Flüssigkeitssystems,
wobei dieses System aufgrund der Erzeugung vorbestimmter Wirkungen, durch die die Fasern in der geschlossenen Leitungseinheit gebogen, gestreckt und verdreht werden, ausgelöst durch das gleichzeitige Einspritzen von Fasern über mehrere parallele Düsen, Richtungs-, Druck-, Temperatur- und Viskositätsänderungen der Flüssigkeit sowie Änderungen der Fließgeschwindigkeit, die Herstellung verschiedener Garne aus Textilfasern ermöglicht und es gleichzeitig möglich macht, die Fasern und/oder das Garn spezifischer Behandlungen zu unterziehen wie etwa dem Färben, Dämpfen, Fixieren und viele andere, wobei diese Behandlungen im Flüssigkeitssystem selbst durchgeführt werden.

Revendications

1. Système de filature par utilisation de fluides, pour la filature de toutes sortes de fibres textiles, naturelles, artificielles et synthétiques à l'intérieur d'un milieu liquide soumis à pression, caractérisé en ce qu'il comprend :

a) une unité de conduction fermée constituée de deux ou plusieurs circuits (cl, c2, c3), contenant un liquide qui circule à pression et des fibres textiles entraînées par ledit fluide, de manière que les fibres sont soumises au processus de filature par manipulation contrôlée dudit fluide ; ladite unité de conduction est ainsi dotée :

- de tuyères (I1, I2, 13) pour l'injection de fluide ou de fluide avec des fibres textiles à l'intérieur du courant circulant ; ledit fluide est injecté à travers la surface extérieure de ladite unité de conduction dans des positions et des orientations données, selon le type et la composition du fil à produire et aussi selon les opérations à réaliser sur lesdites fibres textiles à l'intérieur de l'unité de conduction ; lesdites tuyères sont dotées de moyens permettant de modifier le diamètre de la zone de passage du fluide à travers celles-ci en provoquant un effet Venturi ;

- de quelques éléments mécaniques fixes ou mobiles situés à l'intérieur de ladite unité de conduction, de manière que la quantité, la forme, l'emplacement et la disposition desdits éléments mécaniques dépendent du type de fil à produire : lesdits éléments mécaniques permettent de modifier le sens, la zone de passage et la vitesse du courant en circulation et des fibres textiles transportées par ledit fluide, imprimant ainsi auxdites fibres des mouvements prédéterminés ;

- d'ouvertures de sortie, pour le fil fabriqué à partir desdites fibres textiles, à l'extérieur de l'unité de conduction afin de recueillir ledit fil ;

b) des moyens d'impulsion, tels que des pompes (Bl, B2, B3) pour le courant circulant et pour le fluide qui passe dans ladite unité de conduction à travers les tuyères mentionnées,

c) des moyens de programmation permettant de maîtriser les variables du système de fluide, c'est-à-dire, entre autres, les paramètres du fluide, tels que sa pression, sa température, sa viscosité et sa vitesse, la dimension du diamètre de la zone de passage des tuyères, la configuration et la disposition desdits éléments mécaniques mobiles situés à l'intérieur de ladite unité de conduction, ainsi que les paramètres d'un autre ou de tout autre fluide distinct qui serait introduit dans le système de fluide ; et enfin,

d) des moyens de contrôle tels que des manomètres pour les variables du système de fluide ;
Ledit système, du fait de la production d'effets prédéterminés de retordage, d'étirage et de torsion desdites fibres à l'intérieur de l'unité de conduction fermée, induits par l'injection simultanée de fibres à travers plusieurs tuyères parallèles, de changements de sens, de pression, de température, de viscosité et de vitesse dudit fluide, fait qu'il est possible de fabriquer différents fils à partir de fibres textiles et permet, en même temps, de soumettre les fibres ou le fil à des traitements spécifiques, tels que la teinture, la vaporisation, la fixation et bien d'autres encore ; lesdits traitements sont ainsi réalisés au sein même du système de fluide.

Drawing