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EP0168357A1 - Apparatus for simultaneously twisting and drawng on a spinning frame - Google Patents

Apparatus for simultaneously twisting and drawng on a spinning frame Download PDF

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Publication number
EP0168357A1
EP0168357A1 EP85830141A EP85830141A EP0168357A1 EP 0168357 A1 EP0168357 A1 EP 0168357A1 EP 85830141 A EP85830141 A EP 85830141A EP 85830141 A EP85830141 A EP 85830141A EP 0168357 A1 EP0168357 A1 EP 0168357A1
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EP
European Patent Office
Prior art keywords
yarn
wire
cylinders
stretching
pulleys
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP85830141A
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German (de)
French (fr)
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EP0168357B1 (en
Inventor
Ugo Mallardi
Ugo Roberto Menicacci
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Individual
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Individual
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Publication date
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Publication of EP0168357A1 publication Critical patent/EP0168357A1/en
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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
    • D01H5/28—Drafting machines or arrangements without fallers or like pinned bars in which fibres are controlled by inserting twist during drafting

Definitions

  • the invention relates to an apparatus for a continuous ring loom by means of which the same piece of wick is simultaneously subjected to both real twisting and drawing.
  • the stretching cylinders of said pair are at most with horizontal axes, at least one of the two cylinders is rotated by a bevel gear, which, in turn, engages on a ring gear with vertical axis: the two rollers stretching being mounted on a member rotating around the vertical direction of movement of the wick.
  • Patent GB 163,353 further provides for a device for simultaneous twisting and stretching of cotton, wool, silk and other textile fiber wicks by means of a pair of cylinders with a vertical axis, one hollow. and aligned with the winding spindle, the other mounted on a sled sliding in a frame, fixed to the shaft of the first cylinder.
  • the wick which comes from food cylinders slides around a fixed bar, then passes between the two stretching cylinders and finally, sliding on the upper end of the hollow cylinder of said pair of drawing rollers, passes inside thereof and is direction to the winding spindle.
  • the invention solves the problem of realizing a device capable of simultaneously twisting and drawing a wick, which allows, despite the detours imposed on the yarn in formation, a high production speed (40 m / min. and more) with a high rotation speed (10,000 - 12,000 rpm), with uniform drawing (12 m / min. equal to 40% of the speed of feed) and with a uniformity of the wire, that is to say a regularity of its section, greater than that currently obtained by means of the continuous ring spinning machine and even slightly greater than that obtained by means of the intermittent loom -acting).
  • the detours of the wire in formation are carried out without friction and, moreover, safe, the concentration of the stretch on a short piece of the wick and the damage caused to the wire in formation as a result of friction and heating of the wire.
  • the advantages obtained thanks to the present invention essentially consist in the fact that it is possible to work textile fibers of any type, even short and regenerated; that at production speed equal to and even slightly higher than that of continuous spinning, it is possible to obtain a quality equal to or greater than that obtained by means of intermittent looms; that it is possible to twist the wire further; that a device in accordance with the invention is capable of being adapted to all the threading lines currently known.
  • Figure 1 shows the overview of a possible embodiment of an apparatus according to the present invention.
  • This device essentially comprises a pair of 2.2 'stretching rollers, with vertical axes, the motor and hollow roller 2, rotating around its own axis, on command of a pulley 30 with belt 30' and the roller 2 ' presser, mounted fol on a carriage 4, horizontal, rotating in a concordant and coaxial manner with said roller 2, on command of a pulley 40 with belt 40 '.
  • Said riot 4 is sodidaire of a vertical support 41, carrying several (eg four) pulleys 42, freely rotating about their own axis ho rizontal; two of these pulleys 42 are equidistant from the carriage 4 to allow the wire in formation to pass horizontally between the two drawing rollers 2,2 '; the two other pulleys 42 are at a distance from the carriage 4 greater than that of the first two and placed so as to collect the wick 1 on its arrival from the food cylinders 11 and to direct the wire 1, at its exit from the drawing rollers, towards the hollow cylinder 2, in the vertical direction of advance of the wire 1.
  • An opening 43 is provided in said support 41 to allow contact between the two stretching rollers 2,2 ′.
  • the difference between the speed of rotation of the carriage 4 carrying the pressing cylinder 2 ′ and that of the driving cylinder 2 determines the speed of traction of the wick 1 and therefore the percentage of stretching with respect to the pair of food cylinders 11.
  • the rotation of the carriage 4 and of the support 41 with the return pulleys 42 determines the torsion of the wick 1: the two combined movements of the driving cylinder 2 and of the carriage 4 determine the simultaneous twisting and drawing of the same piece of wick 1.
  • a spindle 6 for winding the wire 1 with a ring bench 7 and a rail 8, rotating around a vertical axis which is in the direction of advancement of the wire 1 in formation and rotating in accordance with said carriage 4 so as to maintain and make definite the torsion effected by the drawing rollers 2,2 ′.
  • the speed of rotation of the spindle 6 will be equal to or higher / lower than that of the carriage 4 depending on whether one wishes to obtain only the winding of the wire or an addition / minus modification of the importance of the twist of the wire, carried out by said pair of rolls 2,2 '.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

In a device for simultaneously stretching and twisting a synthetic filament or yarn, by using a speed differential between two driven roll nips (11/11; 2/2'), the latter is mounted on a turntable (4) with a guide plate (41) to receive the yarn coaxially and to deliver it coaxially via a hollow core passage through the driven roll (2) and its associated drive system (30), after passing over yarn guides (42) for modifying the direction of the yarn past (2) and across (4). The guides (42) pref. are small, freely rotating pulleys. The yarn is collected by a conventional ring and bobbin combination (6,7,8) opt. providing a further speed differential to modify the yarn characteristics. The stretching roll (2) and turntable (4) may be driven by separately controlled drives, e.g. via belts (30') and (40') respectively.

Description

L'invention concerne un appareil pour métier conti nu à anneau grâce auquel le même morceau de mèche est, simultanément soumis tant à réelle torsion qu'à étirage.The invention relates to an apparatus for a continuous ring loom by means of which the same piece of wick is simultaneously subjected to both real twisting and drawing.

La filature en continu avec torsion et étirage simultanés de la mèche est proposée par quelques brevets d'ancienne date (par ex. GB-A- 194.532 et GB-A-415.254). Ce résultat a été obtenu au moyen d' une paire de rouleaux d'étirage au moins auxquels on impose, outre un mouvement de rotation autour de leur propre axe, un mouvement de rotation autour de la direction de déplacement de la mèche.Continuous spinning with simultaneous twisting and stretching of the wick is offered by some patents of old date (eg GB-A- 194.532 and GB-A-415.254). This result has been obtained by means of at least one pair of stretching rollers to which, in addition to a rotational movement about their own axis, a rotational movement is imposed around the direction of movement of the bit.

Les cylindres étireurs de ladite paire sont tout au plus à axes horizontaux, un au moins des deux cylin dres est entrainé en rotation par un engrenage coni que, qui, à son tour, fait prise sur une couronne dentée avec axe vertical: les deux rouleaux d'étira ge étant montés sur un organe tournant autour de la direction verticale de déplacement de la mèche.The stretching cylinders of said pair are at most with horizontal axes, at least one of the two cylinders is rotated by a bevel gear, which, in turn, engages on a ring gear with vertical axis: the two rollers stretching being mounted on a member rotating around the vertical direction of movement of the wick.

Le brevet GB 163.353 prévoit en outre en un dispo sitif de torsion et d'étirage simultanés de mèches de coton, de laine, de soie et d'autres fibres textiles au moyen d'une paire de cylindres à axe vertical, l'un creux et aligné sur la broche d'enroulement, l'autre monté sur un traîneau coulissant dans un châssis,fixé à l'arbre du premier cylindre. Dans ce dispositif connu, la mèche qui provient des cylindres alimentaires, glisse autour d'une barre fixe, passe ensuite entre les deux cylindres étireurs et enfin, glissant sur l'extrémité supérieure du cylindte creux de ladite paire de rouleaux d' étirage, passe à l'intérieur de celui-ci et se diri ge vers la broche d'enroulement.Patent GB 163,353 further provides for a device for simultaneous twisting and stretching of cotton, wool, silk and other textile fiber wicks by means of a pair of cylinders with a vertical axis, one hollow. and aligned with the winding spindle, the other mounted on a sled sliding in a frame, fixed to the shaft of the first cylinder. In this known device, the wick which comes from food cylinders, slides around a fixed bar, then passes between the two stretching cylinders and finally, sliding on the upper end of the hollow cylinder of said pair of drawing rollers, passes inside thereof and is direction to the winding spindle.

Le parcours suivi par le fil en formation, tant à l'arrivée aux deux cylindres étireurs qu'à la sortie de ceux-ci, comporte plusierus pliures du fil à angle aigu: parmi ces pliures, est particulièrement néfaste celle qui a lieu autour de la barre fixe, étant donné que cette barre empêche à la force nécessaire pour l'étirage,de se distribuer de manière uniforme sur tout le morceau de fil en formation compris entre les cylindres alimentaires et les cylindres étireurs, avec pour résultat que la mèche, en s'allongeant de façon irrégulière dans le bref parcours compris entre ladite barre fixe et lesdits cylindres étireurs., donne lieu à un fil non unifor- me. En outre le frottement rasant du fil sur la tête du cylindre étireur creux fait opposition à la faible force de. traction dont dispose le groupe broche-anneau d'enroulement; en conséquence, et ce spécialment dans certaines conditions opératives, comme par exemple avec un anneau léger et une fai ble vitesse de rotation de la broche, il peut ar river que le fil soit rappelé avec difficulté à l' intérieur du cylindre étireur creux et en outre le fil tend à former dès boucles à la sortie des cylin dres étireurs. Enfin il faut noter que par suite du dit frottement, le fil en formation est sujet à ré chauffement et à usure,qui en réduisent la qualité. La présente invention a pour objectif l'élimination de ces inconvénients.The course followed by the wire in formation, both at the arrival at the two stretching cylinders and at the exit i e thereof, comprises several folds of the wire at an acute angle: among these folds, is particularly harmful that which takes place around the fixed bar, since this bar prevents the force necessary for drawing, from being distributed uniformly over the entire piece of wire being formed between the food rolls and the drawing rolls, with the result that the wick, stretching is irregularly in the short path between said fixed bar and said drawing rollers., gives rise to a non unifor- m th thread. Also rubbing shaving thread on e Tet hollow drawing roller opposed the weak force. traction available to the spindle-ring winding group; accordingly, and s pécialment in some operative conditions, for example with a light ring and a fai ble the spindle speed, it may ar river that the yarn is recalled with difficulty within the hollow drawing roller and Furthermore the wire tends to form loops from the output of cylin d r es stretchers. Finally, it should be noted that as a result of said friction, the wire in formation is subject to reheating and to wear, which reduce its quality. The present invention aims to eliminate these drawbacks.

L'invention, telle qu'elle est caractérisée par les revendications, résoud le problème consistant à réa liser un dispositif à même d'effectuer simultanément la torsion et l'étirage d'une mèche, lequel permet, malgré les détours imposés au fil en formation, une vitesse de production élevée (40 m/min. et plus) avec une vitesse de rotation élevée (10.000 - 12.000 tours/min.), avec étirage uniforme (12 m/min. égal à 40% de la vitesse d'alimentation) et avec une uniformité du fil, c'est-à-dire une régularité de sa section, supérieure à celle actuellement obtenue au moyen du continu à filer à anneau et même légèrement supérieure à celle obtenue au moyen du métier à intermittence (self-acting).The invention, as characterized by the claims, solves the problem of realizing a device capable of simultaneously twisting and drawing a wick, which allows, despite the detours imposed on the yarn in formation, a high production speed (40 m / min. and more) with a high rotation speed (10,000 - 12,000 rpm), with uniform drawing (12 m / min. equal to 40% of the speed of feed) and with a uniformity of the wire, that is to say a regularity of its section, greater than that currently obtained by means of the continuous ring spinning machine and even slightly greater than that obtained by means of the intermittent loom -acting).

Moyennant l'utilisation d'un dispositif conforme à l'invention, on obtient les résultats suivants: les détours du fil en formation, respectivement avant et après la paire de cylindres étireurs, sont effec tués sans frottement et en outre on évite, de façon sûre, la concentration de l'étirage sur un court morceau de la mèche et les dommages causés au fil en formation par suite du frottement et du réchauffement du fil.By means of the use of a device in accordance with the invention, the following results are obtained: the detours of the wire in formation, respectively before and after the pair of stretching cylinders, are carried out without friction and, moreover, safe, the concentration of the stretch on a short piece of the wick and the damage caused to the wire in formation as a result of friction and heating of the wire.

Les avantages obtenus grâce à la présente invention consistent essentiellement dans la fait qu'il est possible de travailler des fibres textiles de tout type, même courtes et régénérées; qu'à vitesse de production égale et même légèrement supérieure à celle des continus à filer, il est possible d'obtenir une qualité égale ou supérieure à celle obtenue au moyen de métiers à intermittence; qu'il est possible d'effectuer une torsion supplémentaire du fil; qu'un dispositif conforme à l'invention est susceptible d'être adapté à tous les continus à fi- lier actuellement connus.The advantages obtained thanks to the present invention essentially consist in the fact that it is possible to work textile fibers of any type, even short and regenerated; that at production speed equal to and even slightly higher than that of continuous spinning, it is possible to obtain a quality equal to or greater than that obtained by means of intermittent looms; that it is possible to twist the wire further; that a device in accordance with the invention is capable of being adapted to all the threading lines currently known.

L'invention est décrite avec plus de détails dans les pages qui suivent, à l'aide d'un dessin qui en représente un mode de réalisation donné à titre d' exemple, non limitatif. La Figure 1 représente la vue d'ensemble d'une forme possible de réalisation d'un appareil conforme à la présente invention.The invention is described in more detail in the following pages, using a drawing which represents an embodiment given by way of example, without limitation. Figure 1 shows the overview of a possible embodiment of an apparatus according to the present invention.

Cet appareil comporte, essentiellement, une paire de rouleaux 2,2' étireurs, avec axes verticaux, le rouleau 2 moteur et creux, tournant autour de son propre axe, sur commande d'une poulie 30 avec courroie 30' et le rouleau 2' presseur, monté fol sur un chariot 4, horizontal, tournant de manière concordante et coaxiale avec ledit rouleau 2, sur commande d'une poulie 40 avec courroie 40' . Ledit cha riot 4 est sodidaire d'un support 41 vertical, portant plusierus (par ex. quatre) poulies de renvoi 42, tournant librement autour de leur propre axe ho rizontal; deux de ces poulies 42 sont équidistantes du chariot 4 pour permettre au fil en formation de passer horizontalement entre les deux rouleaux d' étirage 2,2' ; les deux autres poulies 42 se trouvent à une distance du chariot 4 supérieure à celle des deux premières et placées de façon à recueillir la mèche 1 à son arrivée des cylindres alimentaires 11 et à diriger le fil 1, à sa sortie des rouleaux d'étirage, vers le cylindre creux 2, dans la direction verticale d'avancement du fil 1.This device essentially comprises a pair of 2.2 'stretching rollers, with vertical axes, the motor and hollow roller 2, rotating around its own axis, on command of a pulley 30 with belt 30' and the roller 2 ' presser, mounted fol on a carriage 4, horizontal, rotating in a concordant and coaxial manner with said roller 2, on command of a pulley 40 with belt 40 '. Said riot 4 is sodidaire of a vertical support 41, carrying several (eg four) pulleys 42, freely rotating about their own axis ho rizontal; two of these pulleys 42 are equidistant from the carriage 4 to allow the wire in formation to pass horizontally between the two drawing rollers 2,2 '; the two other pulleys 42 are at a distance from the carriage 4 greater than that of the first two and placed so as to collect the wick 1 on its arrival from the food cylinders 11 and to direct the wire 1, at its exit from the drawing rollers, towards the hollow cylinder 2, in the vertical direction of advance of the wire 1.

Une ouverture 43 est prévue dans ledit support 41 pour permettre le contact entre les deux rouleaux 2,2' d'étirage.An opening 43 is provided in said support 41 to allow contact between the two stretching rollers 2,2 ′.

La différence entre la vitesse de rotation du chariot 4 portant le cylindre presseur 2' et celle du cylindre moteur 2 détermine la vitesse de traction de la mèche 1 et partant le pourcentage d'étirage par rapport à la paire de cylindres 11 alimentaire. La rotation du chariot 4 et du support 41 avec les poulies de renvoi 42 détermine la torsion de la mèche 1: les deux mouvements combinés du cylindre moteur 2 et du chariot 4 déterminent la torsion et l'étirage simultanés du même morceau de mèche 1.The difference between the speed of rotation of the carriage 4 carrying the pressing cylinder 2 ′ and that of the driving cylinder 2 determines the speed of traction of the wick 1 and therefore the percentage of stretching with respect to the pair of food cylinders 11. The rotation of the carriage 4 and of the support 41 with the return pulleys 42 determines the torsion of the wick 1: the two combined movements of the driving cylinder 2 and of the carriage 4 determine the simultaneous twisting and drawing of the same piece of wick 1.

En dessous du mécanisme permettant la torsion et l'étirage simultanés de la mèche se trouve une broche 6 d'enroulement du fil 1,avec un banc à anneau 7 et un rail 8, tournant autour d'un axe vertical qui se trouve dans la direction d'avancement du fil 1 en formation et tournant en concordance avec ledit chariot 4 de façon à maintenir et rendre défini tive la torsion effectuée par les rouleaux d'étirage 2,2' . La vitesse de rotation de la broche 6 sera égale ou supérieure/inférieure à celle du chariot 4 selon que l'on veuille obtenir uniquement l'enroulement du fil ou une modification en plus/moins de l'importance de la torsion du fil, effectuée par ladit paire de rouleaux 2,2' .Below the mechanism for simultaneous twisting and stretching of the wick is a spindle 6 for winding the wire 1, with a ring bench 7 and a rail 8, rotating around a vertical axis which is in the direction of advancement of the wire 1 in formation and rotating in accordance with said carriage 4 so as to maintain and make definite the torsion effected by the drawing rollers 2,2 ′. The speed of rotation of the spindle 6 will be equal to or higher / lower than that of the carriage 4 depending on whether one wishes to obtain only the winding of the wire or an addition / minus modification of the importance of the twist of the wire, carried out by said pair of rolls 2,2 '.

Claims (2)

1) Un dispositif pour la torsion et l'étirage simultanés de la mèche sur un métier continu à anneau avec une paire de cylindres (2,2') étireurs, tournant autour de leur propre axe vertical, l'un (2) moteur et creux et l'autre (2') tournant fol sur un chariot (4) horizontal, tournant autour de la direction d'avancement du fil (1) en formation, dispositif caractérisé par le fait que dudit chariot (4) sont solidaires des organes servant de sup port à plusierus poulies (42) permettant de guider, sans frottement, le fil (1) en formation; ces poulies (42) sont disposées de manière à orienter la mèche provenant des cylindres alimentaires (11) dans la direction verticale d'avancement, puis de la dévier en direction perpendiculaire à l'axe des cylindres d'étirage (2,2') et de la guider ainsi entre lesdits cylindres d'étirage (2,2') et enfin de la devier et de la guider, par le haut, à travers la cavité axiale du cylindre moteur (2) dans la direction verticale d'avancement vers la broche (6) d'enroulement.1) A device for the simultaneous twisting and drawing of the drill bit on a continuous ring loom with a pair of drawing cylinders (2,2 '), rotating around their own vertical axis, one (2) motor and hollow and the other (2 ') turning mad on a horizontal carriage (4), rotating around the direction of advancement of the wire (1) in formation, device characterized in that said carriage (4) are integral with the members serving as a support for several pulleys (42) making it possible to guide, without friction, the wire (1) in formation; these pulleys (42) are arranged so as to orient the wick coming from the food cylinders (11) in the vertical direction of advance, then to deflect it in a direction perpendicular to the axis of the stretching cylinders (2,2 ′) and thus guide it between said drawing cylinders (2,2 ′) and finally deflect it and guide it, from above, through the axial cavity of the driving cylinder (2) in the vertical direction of advance towards the winding spindle (6). 2) Un dispositif conforme à la revendication 1) caractérisé par le fait que lesdites poulies (42) tournent librement autour de leur propre axe.2) A device according to claim 1) characterized in that said pulleys (42) rotate freely around their own axis.
EP85830141A 1984-06-08 1985-06-07 Apparatus for simultaneously twisting and drawng on a spinning frame Expired EP0168357B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT09432/84A IT1198863B (en) 1984-06-08 1984-06-08 CONTINUOUS SPINNING METHOD WITH TRUE CONTEMPORARY TORSION AND STRETCHING OF THE SAME WICK AND CONTINUOUS THREADING STRUCTURE TO IMPLEMENT THIS METHOD
IT943284 1984-06-08

Publications (2)

Publication Number Publication Date
EP0168357A1 true EP0168357A1 (en) 1986-01-15
EP0168357B1 EP0168357B1 (en) 1988-04-27

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EP85830141A Expired EP0168357B1 (en) 1984-06-08 1985-06-07 Apparatus for simultaneously twisting and drawng on a spinning frame

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EP (1) EP0168357B1 (en)
DE (1) DE3562393D1 (en)
IT (1) IT1198863B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0248768A1 (en) * 1986-04-08 1987-12-09 Ugo Mallardi Device for a continuously working spinning machine
US5323598A (en) * 1990-11-30 1994-06-28 Fritz Stahlecker Process for withdrawing sliver from a can and guiding the sliver to a spinnning machine for spinning the slivers into yarn
CN105155056A (en) * 2015-07-17 2015-12-16 湖州高歌纺织有限公司 Drafting twisting machine
CN117163846A (en) * 2023-11-02 2023-12-05 南通东方船用设备制造有限公司 Marine hoisting equipment with good stability
ES2957300A1 (en) * 2023-11-30 2024-01-16 Llongueras Albert Galan STRETCHING AND TWISTING PROCESS IN SPINNING AND YARN DRAWING AND TWISTING MILL (Machine-translation by Google Translate, not legally binding)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE539653A (en) *
GB163353A (en) * 1919-10-06 1921-05-26 Samuel Halliwell Lawton Improvements in the process of and means for simultaneously twisting and drawing, orfor drawing or for spinning cotton, wool, flax, hemp, silk or like fibres
GB194532A (en) * 1922-03-01 1923-03-15 Theophilus Zachariadis Improvements in and relating to apparatus for drawing and twisting slivers and the like
GB415254A (en) * 1933-07-18 1934-08-23 Thomas Harris Improvements in high-draft apparatus for spinning machines
US2608817A (en) * 1949-11-30 1952-09-02 Reinicke Herbert Spinning mechanism
FR1064410A (en) * 1952-10-14 1954-05-13 Spinning drawing apparatus
US2796725A (en) * 1953-07-23 1957-06-25 Urrutia Tomas Apparatus for simultaneous twisting and stretching, applicable to continuous machines for spinning carded wool

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE539653A (en) *
GB163353A (en) * 1919-10-06 1921-05-26 Samuel Halliwell Lawton Improvements in the process of and means for simultaneously twisting and drawing, orfor drawing or for spinning cotton, wool, flax, hemp, silk or like fibres
GB194532A (en) * 1922-03-01 1923-03-15 Theophilus Zachariadis Improvements in and relating to apparatus for drawing and twisting slivers and the like
GB415254A (en) * 1933-07-18 1934-08-23 Thomas Harris Improvements in high-draft apparatus for spinning machines
US2608817A (en) * 1949-11-30 1952-09-02 Reinicke Herbert Spinning mechanism
FR1064410A (en) * 1952-10-14 1954-05-13 Spinning drawing apparatus
US2796725A (en) * 1953-07-23 1957-06-25 Urrutia Tomas Apparatus for simultaneous twisting and stretching, applicable to continuous machines for spinning carded wool

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0248768A1 (en) * 1986-04-08 1987-12-09 Ugo Mallardi Device for a continuously working spinning machine
US5323598A (en) * 1990-11-30 1994-06-28 Fritz Stahlecker Process for withdrawing sliver from a can and guiding the sliver to a spinnning machine for spinning the slivers into yarn
CN105155056A (en) * 2015-07-17 2015-12-16 湖州高歌纺织有限公司 Drafting twisting machine
CN105155056B (en) * 2015-07-17 2018-01-19 湖州高歌纺织有限公司 A kind of drawing-off twisting machine
CN117163846A (en) * 2023-11-02 2023-12-05 南通东方船用设备制造有限公司 Marine hoisting equipment with good stability
ES2957300A1 (en) * 2023-11-30 2024-01-16 Llongueras Albert Galan STRETCHING AND TWISTING PROCESS IN SPINNING AND YARN DRAWING AND TWISTING MILL (Machine-translation by Google Translate, not legally binding)

Also Published As

Publication number Publication date
IT8409432A0 (en) 1984-06-08
DE3562393D1 (en) 1988-06-01
EP0168357B1 (en) 1988-04-27
IT1198863B (en) 1988-12-21

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