EP0155892A1 - Method of manufaturing a spun yarn - Google Patents
Method of manufaturing a spun yarn Download PDFInfo
- Publication number
- EP0155892A1 EP0155892A1 EP85420015A EP85420015A EP0155892A1 EP 0155892 A1 EP0155892 A1 EP 0155892A1 EP 85420015 A EP85420015 A EP 85420015A EP 85420015 A EP85420015 A EP 85420015A EP 0155892 A1 EP0155892 A1 EP 0155892A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spindle
- yarn
- fibers
- false twist
- spun yarn
- 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.)
- Withdrawn
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Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
- D01H1/11—Spinning by false-twisting
Definitions
- the present invention relates to an improvement made to the process implemented on the device which is the subject of FR-A-2520389 corresponding to 1 US-A-4488397.
- This patent application describes a device which makes it possible to stretch, condense and transport a wick of fibers during a spinning operation.
- a condenser element is arranged following the drawing system proper, said condenser element being in the form of a movable guide surface on which the fibers are delivered tangentially, this guide surface allowing to exert a tensile force on the end of the fibers delivered by the drawing system and being arranged upstream of a conventional spinning system, for example with rings and sliders.
- the conventional spinning system can be constituted by a false twist spindle.
- a false twist pin makes it possible to communicate a certain cohesion to the yarn which, in certain cases, makes it possible to obtain a wire which can be used directly without having to communicate additional twist to it.
- the invention therefore relates to an improvement to the method allowing the implementation of the device which is the subject of FR-A-2520389 , process which consists, during a spinning operation making it possible to transform a wick of fibers into a spun to stretch said wick by passing it through the drawing system proper followed by a condenser element which is in the form of a movable guide surface on which the fibers are delivered tangentially and which tends to exert a tensile force on the free end of said fibers, the yarn formed being, before winding, subjected to the action of a false twist spindle disposed at the outlet of the condenser element, the method according to the invention is characterized in that the false twist spindle is chosen from the spindles which tend to exert a tensile force on the yarn.
- an installation which comprises, in a manner similar to that which is the subject of FR_A-2520389 a drawing device d '' a wick of fibers (1) (or ribbon), wick coming from a power source not shown, this drawing system comprising, in the case present, a conventional drawing train designated by the general reference (2) and which consists of a pair of food cylinders (3), a sleeve system (4) and a pair of drawing cylinders (5).
- the drawing of the wick (1) is carried out between these elements by communicating to them different speeds.
- a condenser guide (6) driven in rotation at a speed V 2 which can be either equal is different from the speed V 1 of exit from the wick of the cylinders (5).
- this condenser guide (6) is rotated by any suitable means not shown and is essentially in the form of two truncated cones joined by their top so as to obtain a groove V-shaped whose branches are substantially inclined relative to each other by an angle of about 120 °.
- the bottom of this groove is pierced with orifices and a suction system is provided inside the condenser (6).
- a false twist pin (7) is arranged downstream of this condenser guide (6) which not only communicates a twist which rises freely up to the surface of the condenser guide but also, tends to exert a tensile force T on the spun yarn formed.
- a spindle of known type with crossed belts is used as the false twist spindle (7).
- a system is arranged call (8), the spun yarn being returned in (9) on a conventional system not imparting additional twist to the spun yarn formed.
- the yarn formed has improved cohesion compared to the previous yarn obtained by using another type of false twist spindle which does not exert any tensile force on the yarn during its formation.
- a fiber spun is produced according to the method according to the invention from a polyester wick having a titer of 35,000 Dtex, the fiber cut being 40 mm.
- the stretching system (2) is adjusted so as to have a stretch of 100, the speed V 1 of the call cylinders (5) being regulated at 15.0 m / min.
- the condenser guide (6) is driven at a speed of rotation such that the speed V 2 at the bottom of the groove is 150 m / min.
- the belts of the spindle (7) will be inclined with respect to each other so as to form an angle of 90 ° and the linear speed of said belts is adjusted to 350 m / min.
- the yarn formed is called at a speed V 3 of 148 m / min
- a yarn is obtained in (9) having a titer of 350 Dtex which has very good cohesion and can be used as it is without further twisting.
- the invention is not limited to the embodiment described above, but it covers all the variants produced in the same spirit.
- it could be envisaged, not to produce simple yarns but core yarns by introducing, in a known manner, a core yarn upstream of the stretching cylinders (5), or even to obtain doubled yarns by treating simultaneously two wicks.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
Description
La présente invention concerne un perfectionnement apporté au procédé mis en oeuvre sur le dispositif faisant l'objet du FR-A-2520389 correspondant à 1' US-A-4488397.The present invention relates to an improvement made to the process implemented on the device which is the subject of FR-A-2520389 corresponding to 1 US-A-4488397.
Cette demande de brevet décrit un dispositif qui permet d'étirer, condenser et transporter une mèche de fibres lors d'une opération de filature.This patent application describes a device which makes it possible to stretch, condense and transport a wick of fibers during a spinning operation.
D'une manière générale, selon ce document, un élément condenseur est disposé à la suite du système d'étirage proprement dit, ledit élément condenseur se présentant sous la forme d'une surface de guidage mobile sur laquelle les fibres sont délivrées tangentiellement, cette surface de guidage permettant d'exercer une force de traction sur l'extrémité des fibres délivrées par le système d'étirage et étant disposée en amont d'un système de filature conventionnel, par exemple à anneaux et curseurs.In general, according to this document, a condenser element is arranged following the drawing system proper, said condenser element being in the form of a movable guide surface on which the fibers are delivered tangentially, this guide surface allowing to exert a tensile force on the end of the fibers delivered by the drawing system and being arranged upstream of a conventional spinning system, for example with rings and sliders.
Selon un mode de réalisation mentionné dans ce document, le système de filature conventionnel peut être constitué par une broche de fausse torsion. Une telle broche de fausse torsion permet de communiquer au filé une certaine cohésion qui, dans certains cas, permet d'obtenir un fil directement utilisable sans avoir à lui communiquer de torsion additionnelle.According to an embodiment mentioned in this document, the conventional spinning system can be constituted by a false twist spindle. Such a false twist pin makes it possible to communicate a certain cohesion to the yarn which, in certain cases, makes it possible to obtain a wire which can be used directly without having to communicate additional twist to it.
Or on a trouvé, et c'est ce qui fait l'objet de la présente invention, qu'il était possible par la simple sélection d'une broche de fausse torsion déterminée, parmi toutes les broches connues à ce jour, d'améliorer encore la cohésion du filé formé dans la mesure où la broche utilisée non seulement communique une fausse torsion en fil mais également exerce une traction sur ledit fil.However, it has been found, and this is the subject of the present invention, that it was possible, by the simple selection of a determined false twist spindle, from among all the spindles known to date, to improve still the cohesion of the yarn formed insofar as the spindle used not only communicates a false twist in the wire but also exerts a traction on said wire.
Parmi les broches de fausse torsion appropriées, convenant pour la mise en oeuvre du procédé selon l'invention, on peut citer les broches à courroies croisées, broches bien connues des techniciens qu'il est donc inutile de décrire en détail.Among the suitable false twist pins, suitable for implementing the method according to the invention, mention may be made of crossed belt pins, pins well known to technicians which it is therefore unnecessary to describe in detail.
Bien entendu, d'autres types de broches remplissant simultanément les deux fonctions précitées pourraient être utilisés.Of course, other types of pins simultaneously fulfilling the two aforementioned functions could be used.
D'une manière générale, l'invention concerne donc un perfectionnement au procédé permettant la mise en oeuvre du dispositif faisant l'objet du FR-A-2520389
, procédé qui consiste, lors d'une opération de filature permettant de transformer une mèche de fibres en filéà étirer ladite mèche en la faisant passer dans le système d'étirage proprement dit suivi d'un élément condenseur qui se présente sous la forme d'une surface de guidage mobile sur laquelle les fibres sont délivrées tangentiellement et qui tend à exercer une force de traction sur l'extrémité libre desdites fibres, le filé formé étant, avant renvidage, soumis à l'action d'une broche de fausse torsion disposée à la sortie de l'élément condenseur, le procédé selon l'invention se caractérisant par le fait que la broche de fausse torsion est choisie parmi les broches qui tendent à exercer une force de traction sur le filé .In general, the invention therefore relates to an improvement to the method allowing the implementation of the device which is the subject of FR-A-2520389
, process which consists, during a spinning operation making it possible to transform a wick of fibers into a spun to stretch said wick by passing it through the drawing system proper followed by a condenser element which is in the form of a movable guide surface on which the fibers are delivered tangentially and which tends to exert a tensile force on the free end of said fibers, the yarn formed being, before winding, subjected to the action of a false twist spindle disposed at the outlet of the condenser element, the method according to the invention is characterized in that the false twist spindle is chosen from the spindles which tend to exert a tensile force on the yarn.
L'invention et les avantages qu'elle apporte seront cependant bien compris grâce à l'exemple de réalisation donné ci-après à titre indicatif mais non limitatif et qui est illustré par la figure unique annexée qui est une vue schématique en perspective d'une installation permettant la mise en oeuvre du procédé selon l'invention.The invention and the advantages which it brings will however be well understood thanks to the embodiment given below by way of indication but not limitation and which is illustrated by the single appended figure which is a schematic perspective view of a installation allowing the implementation of the method according to the invention.
Si l'on se reporte à la figure annexée pour la mise en oeuvre du procédé selon l'invention, on utilise une installation qui comporte, d'une manière similaire à celle faisant l'objet du FR_A-2520389 un dispositif d'étirage d'une mèche de fibres (1) (ou ruban), mèche provenant d'une source d'alimentation non représentée, ce système d'étirage comprenant, dans le cas présent, un train d'étirage conventionnel désigné par la référence générale (2) et qui est constitué d'une paire de cylindres alimentaires (3), d'un système à manchons (4) et d'une paire de cylindres d'étirage (5).If reference is made to the appended figure for the implementation of the method according to the invention, an installation is used which comprises, in a manner similar to that which is the subject of FR_A-2520389 a drawing device d '' a wick of fibers (1) (or ribbon), wick coming from a power source not shown, this drawing system comprising, in the case present, a conventional drawing train designated by the general reference (2) and which consists of a pair of food cylinders (3), a sleeve system (4) and a pair of drawing cylinders (5).
L'étirage de la mèche (1) est réalisée 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.
A la sortie du dispositif d'étirage (2), donc dans le cas présent, à proximité immédiate des cylindres étireurs (5), est disposé un guide condenseur (6) entraîné en rotation à une vi'tesse V2 qui peut être soit égale soit différente de la vitesse V1 de sortie de la mèche des cylindres (5). Lorsque la vitesse V2 est égale à la vitesse V1, ce dispositif permet de condenser la mèche (1) dans le sens de la largeur. En revanche, si V2 est supérieune à V1, il est possible simultanément de condenserla mèche et d'assurer un étirage additionnel.At the outlet of the stretching device (2), therefore in this case, in the immediate vicinity of the stretching cylinders (5), is arranged a condenser guide (6) driven in rotation at a speed V 2 which can be either equal is different from the speed V 1 of exit from the wick of the cylinders (5). When the speed V 2 is equal to the speed V 1 , this device makes it possible to condense the wick (1) in the width direction. On the other hand, if V 2 is greater than V 1 , it is possible simultaneously to condense the wick and to provide additional stretching.
Dans l'exemple de réalisation illustré par le schéma annexé, ce guide condenseur (6) est entraîné en rotation par tout moyen approprié non représenté et se présente essentiellement sous la forme de deux troncs de cône accolés par leur sommet de manière à obtenir une gorge en forme de V dont les branches sont sensiblement inclinées l'une par rapport à l'autre d'un angle d'environ 120°. Le fond de cette gorge est percé d'orifices et un système d'aspiration est prévu à l'intérieur du condenseur (6).In the embodiment illustrated by the appended diagram, this condenser guide (6) is rotated by any suitable means not shown and is essentially in the form of two truncated cones joined by their top so as to obtain a groove V-shaped whose branches are substantially inclined relative to each other by an angle of about 120 °. The bottom of this groove is pierced with orifices and a suction system is provided inside the condenser (6).
Conformément à l'invention, en aval de ce guide condenseur (6), est disposée une broche de fausse torsion (7) qui, non seulement communique une torsion qui remonte librement jusqu'à la surface du guide condenseur mais aussi, par ailleurs, tend à exercer une force de traction T sur le filé formé. De préférence, on utilise comme broche de fausse torsion (7) une broche de type connu à courroies croisées.According to the invention, downstream of this condenser guide (6), a false twist pin (7) is arranged which not only communicates a twist which rises freely up to the surface of the condenser guide but also, tends to exert a tensile force T on the spun yarn formed. Preferably, a spindle of known type with crossed belts is used as the false twist spindle (7).
En aval de cette broche (7), est disposé un système d'appel (8), le filé formé étant renvidé en (9) sur un système conventionnel ne communiquant pas de torsion additionnelle au filé formé.Downstream of this spindle (7), a system is arranged call (8), the spun yarn being returned in (9) on a conventional system not imparting additional twist to the spun yarn formed.
En travaillant dans les conditions précitées, on a constaté que le filé formé présente une cohésion améliorée par rapport au filé antérieur obtenu en utilisant un autre type de broche de fausse torsion n'exerçant pas de force de traction sur le fil lors de sa formation.By working under the aforementioned conditions, it has been found that the yarn formed has improved cohesion compared to the previous yarn obtained by using another type of false twist spindle which does not exert any tensile force on the yarn during its formation.
On réalise un filé de fibres conformément au procédé selon l'invention à partir d'une mèche de polyester ayant un titre de 35 000 Dtex, la coupe des fibres étant de 40 mm.A fiber spun is produced according to the method according to the invention from a polyester wick having a titer of 35,000 Dtex, the fiber cut being 40 mm.
Le système d'étirage (2) est réglé de manière à avoir un étirage de 100, la vitesse V1 des cylindres d'appel (5) étant régulée à 15.0 m/mn.The stretching system (2) is adjusted so as to have a stretch of 100, the speed V 1 of the call cylinders (5) being regulated at 15.0 m / min.
Le guide condenseur (6) est entraîné à une vitesse de rotation telle que la vitesse V2 en fond de gorge soit de 150 m/mn. Les courroies de la broche (7) seront inclinées l'une par rapport à l'autre de manière à former un angle de 90° et la vitesse linéaire desdites courroies est réglée à 350 m/mn.The condenser guide (6) is driven at a speed of rotation such that the speed V 2 at the bottom of the groove is 150 m / min. The belts of the spindle (7) will be inclined with respect to each other so as to form an angle of 90 ° and the linear speed of said belts is adjusted to 350 m / min.
Le filé formé est appelé à une vitesse V 3 de 148 m/mnThe yarn formed is called at a
On obtient un filé en (9) ayant un titre de 350 Dtex qui présente une très bonne cohésion et peut être utilisé tel quel sans retordage ultérieur.A yarn is obtained in (9) having a titer of 350 Dtex which has very good cohesion and can be used as it is without further twisting.
A titre comparatif, si l'on remplace la broche de fausse torsion par friction à courroies utilisée conformément à l'invention par une broche de fausse torsion à disques, désigné couramment par les techniciens "broche à friction externe", on obtient également, en travaillant dans les mêmes conditions, un filé qui présente une bonne cohésion, mais qui, cependant, est inférieure à celle obtenue conformément à l'invention.By way of comparison, if we replace the false-twist spindle with belt friction used in accordance with the invention with a false-twist spindle with discs, commonly referred to by technicians as "external friction spindle", we also obtain, by working under the same conditions, a yarn which has good cohesion, but which, however, is less than that obtained in accordance with the invention.
Il en est de même lorsque l'on remplace la broche à courroies selon l'invention et qu'on utilise à la place une broche à friction interne.It is the same when replacing the pin to belts according to the invention and an internal friction spindle is used instead.
Bien entendu, l'invention n'est pas limitée à l'exemple de réalisation décrit précédemment mais elle en couvre toutes les variantes réalisées dans le même esprit. Ainsi, il pourrait être envisagé, non pas de réaliser des filés simples mais des filés à âme en introduisant, de manière connue, un fil d'âme en amont des cylindres étireurs (5), voire même d'obtenir des filés doublés en traitant simultanément deux mèches.Of course, the invention is not limited to the embodiment described above, but it covers all the variants produced in the same spirit. Thus, it could be envisaged, not to produce simple yarns but core yarns by introducing, in a known manner, a core yarn upstream of the stretching cylinders (5), or even to obtain doubled yarns by treating simultaneously two wicks.
Claims (2)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8403084 | 1984-02-24 | ||
| FR8403084A FR2560229A1 (en) | 1984-02-24 | 1984-02-24 | PROCESS FOR OBTAINING A FIBER FILE |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0155892A1 true EP0155892A1 (en) | 1985-09-25 |
Family
ID=9301504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP85420015A Withdrawn EP0155892A1 (en) | 1984-02-24 | 1985-01-29 | Method of manufaturing a spun yarn |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0155892A1 (en) |
| JP (1) | JPS60209025A (en) |
| FR (1) | FR2560229A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101892533A (en) * | 2010-07-27 | 2010-11-24 | 上海市毛麻纺织科学技术研究所 | High-tenacity and low-tension spinning device |
| CN105256418A (en) * | 2015-11-17 | 2016-01-20 | 苏州驰亚机电科技股份有限公司 | Compact spinning method |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0791704B2 (en) * | 1986-01-08 | 1995-10-04 | 金井 宏之 | Belt type spinning machine |
| DE3927936A1 (en) * | 1988-09-29 | 1990-04-05 | Fehrer Ernst | DEVICE FOR PRODUCING A YARN |
| CN104562314A (en) * | 2015-01-16 | 2015-04-29 | 江苏工程职业技术学院 | Doubling roving integrated sample weaving machine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1720E (en) * | 1902-12-11 | 1903-09-04 | Eugene Berger | New device intended to replace buffaloes in the preparation of wicks of wool |
| EP0070210A1 (en) * | 1981-06-12 | 1983-01-19 | Baulip Fil Sarl | Method and apparatus of manufacturing a doubled yarn |
-
1984
- 1984-02-24 FR FR8403084A patent/FR2560229A1/en not_active Withdrawn
-
1985
- 1985-01-29 EP EP85420015A patent/EP0155892A1/en not_active Withdrawn
- 1985-02-25 JP JP3624285A patent/JPS60209025A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1720E (en) * | 1902-12-11 | 1903-09-04 | Eugene Berger | New device intended to replace buffaloes in the preparation of wicks of wool |
| EP0070210A1 (en) * | 1981-06-12 | 1983-01-19 | Baulip Fil Sarl | Method and apparatus of manufacturing a doubled yarn |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101892533A (en) * | 2010-07-27 | 2010-11-24 | 上海市毛麻纺织科学技术研究所 | High-tenacity and low-tension spinning device |
| CN105256418A (en) * | 2015-11-17 | 2016-01-20 | 苏州驰亚机电科技股份有限公司 | Compact spinning method |
| CN105256418B (en) * | 2015-11-17 | 2019-01-01 | 苏州驰亚机电科技股份有限公司 | A kind of compact spinning method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60209025A (en) | 1985-10-21 |
| FR2560229A1 (en) | 1985-08-30 |
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| 18D | Application deemed to be withdrawn |
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| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: FAURE, JEAN LOUIS Inventor name: SCHOUMACHER, MARCEL |