EP0088032B1 - Double bar with a variable couple resistance - Google Patents

Double bar with a variable couple resistance Download PDF

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Publication number
EP0088032B1
EP0088032B1 EP83420028A EP83420028A EP0088032B1 EP 0088032 B1 EP0088032 B1 EP 0088032B1 EP 83420028 A EP83420028 A EP 83420028A EP 83420028 A EP83420028 A EP 83420028A EP 0088032 B1 EP0088032 B1 EP 0088032B1
Authority
EP
European Patent Office
Prior art keywords
spindle
coronelle
cap
loop
coil
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.)
Expired
Application number
EP83420028A
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German (de)
French (fr)
Other versions
EP0088032A3 (en
EP0088032A2 (en
Inventor
Adalbert Winkelmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Staeubli Verdol SA
Original Assignee
Verdol SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Verdol SA filed Critical Verdol SA
Publication of EP0088032A2 publication Critical patent/EP0088032A2/en
Publication of EP0088032A3 publication Critical patent/EP0088032A3/en
Application granted granted Critical
Publication of EP0088032B1 publication Critical patent/EP0088032B1/en
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/10—Tension devices
    • D01H13/102—Regulating tension by regulating delivery of yarn from supply package
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
    • B65H59/08—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by contact of running length of material with supply package
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the present invention relates to improvements made to the coronelles, that is to say to the devices placed at the top of a double twist spindle so as to slow down the running of the wire.
  • Such devices are well known in practice and it is known that their rotation must be slowed down by weights or springs, so that during the unwinding of the reel, the wire is braked.
  • the thread to be twisted comes out of the spindle in the usual way through a radial hole opening onto a disc on the periphery of which a thread reserve is established before the latter forms the usual twisting balloon. It is easily understood that there must be a balancing of the thread tensions which appear at its exit from the radial hole of the spindle and at its entry into the bore of the latter. In particular, if the thread tension is such that the reserve which takes place on the disc is large, it can cause a capstan effect which causes an unacceptable high tension to the point that we can witness the elimination of the balloon. and even breaking the wire.
  • the improvements which are the subject of the present invention aim to remedy the aforementioned drawbacks and to allow the production of a coronelle comprising a simple and effective device for varying its resistive torque as a function of the diameter of the coil.
  • FIG. 1 Schematically illustrated in FIG. 1 the main parts of a double twist spindle having a rotating axis 1, provided with a central bore 1a with respect to which a coil 2 remains angularly fixed by known means, said coil being placed in a pot 3 of cylindrical shape.
  • the disc 4 located under the pot 3 and which rotates with the spindle 1 has been illustrated by a broken line. It has a radial hole issuing from this bore and opening onto a peripheral surface of said disc.
  • the wire 5 coming from the coil 2 passes through the bore 1, crosses the radial hole of the disc 4 to form a balloon 5a around the pot 3.
  • Two methods are used to regulate the tension of the thread 5; the first consists in providing a wire brake inside the bore 1a, while the second is characterized by the use of a coronelle 6 mounted with free rotation relative to the axis 1 and which is associated with a device ensuring the creation of a constant or variable resistant torque.
  • the coronelle 6 is associated with a hub 7 mounted for free rotation about the axis 1. It is produced by means of two symmetrical sections of steel wire, as illustrated in FIG. 2. Each of these sections has a rounded central part 6a which encloses the hub 7 in a groove 7a thereof and two branches 6b, 6c, one of the ends of which has a hook 6d, 6e. The two sections are applied against each other and the free ends of the branches 6c are welded against the corresponding part of the branches 6b so that the two central parts 6a of the two sections are located in the same plane.
  • each hook 6d, 6e of the coronelle 6 are each intended to hold a sleeve 8 respectively 9 oriented perpendicular to the general plane of this coronelle, so that in practice the sleeves 8, 9 are oriented vertically when the coronelle is in place. It is further observed that each hook 6d, 6e is extended by a thread guide 6f, 6g whose role is illustrated in FIG. 1, that is to say, it serves to guide the wire 5 between the periphery of the coil 2 and the bore 1 a of the axis 1.
  • each of the sleeves 8, 9 is embedded one end of a loop formed by an elastic funicular element having low rigidity.
  • This element can advantageously be produced by means of a superpolyamide horsehair, the term horsehair designating a single extruded wire.
  • This horsehair forms a loop 10 which, due to the embedding of its ends in the vertical sleeves 8 and 9, is in the free state. of the coronelle in the plane of symmetry thereof. If one chooses as material for making the loop 10 a material such as "Nylon •, it is easily understood that due to its low rigidity, if the loop 10 is offset laterally, it tends to return elastically in the plane of symmetry of the coronelle. However, this loop also has a certain flexibility which allows it, when the coronelle is put in place, to surround part of the periphery of the coil 2.
  • the loop 10 Since thanks to its elastic qualities and the braking effect due to its friction against the periphery of the coil, the loop 10 generates braking of the coronelle which is more important when the diameter of the coil is large than when it is low. In other words the resistive torque applied to the coronelle decreases as the diameter of the coil 2 is reduced.
  • the resistive torque can be varied and adapted to the diameter and quality of the wire 5 wound on the spool 2.
  • a coronelle with variable resistive torque has thus been produced, the action of which is particularly effective and the cost price excessively low.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Toys (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)

Description

La présente invention est relative à des perfectionnements apportés aux coronelles, c'est-à-dire aux dispositifs placés au sommet d'une broche à double torsion de manière à ralentir le défilement du fil. De tels dispositifs sont bien connus dans la pratique et on sait que leur rotation doit être ralentie par des poids ou des ressorts, de telle manière que lors du dévidage de la bobine, le fil soit freiné.The present invention relates to improvements made to the coronelles, that is to say to the devices placed at the top of a double twist spindle so as to slow down the running of the wire. Such devices are well known in practice and it is known that their rotation must be slowed down by weights or springs, so that during the unwinding of the reel, the wire is braked.

Le fil qui doit être retordu sort de la broche à la manière usuelle par un trou radial débouchant sur un disque sur la périphérie duquel s'établit une réserve de fil avant que ce dernier ne forme le ballon usuel de retordage. On comprend aisément qu'il doit s'effectuer un équilibrage des tensions du fil qui apparaissent à sa sortie du trou radial de la broche et à son entrée dans l'alésage de celle-ci. En particulier, si la tension du fil est telle que la réserve qui s'effectue sur le disque est importante, elle peut provoquer un effet de cabestan qui entraîne une tension élevée inacceptable au point que l'on peut assister à l'élimination du ballon et même à la rupture du fil.The thread to be twisted comes out of the spindle in the usual way through a radial hole opening onto a disc on the periphery of which a thread reserve is established before the latter forms the usual twisting balloon. It is easily understood that there must be a balancing of the thread tensions which appear at its exit from the radial hole of the spindle and at its entry into the bore of the latter. In particular, if the thread tension is such that the reserve which takes place on the disc is large, it can cause a capstan effect which causes an unacceptable high tension to the point that we can witness the elimination of the balloon. and even breaking the wire.

Bien entendu la tension du fil à vitesse d'appel constante est également dépendante du diamètre de la bobine. Lorsque celle-ci est pleine, c'est-à-dire qu'elle présente un grand diamètre, la vitesse de défilement du fil à ce niveau est faible de telle sorte que la coronelle doit comporter un couple résistant important pour réguler la tension de ce fil.Of course the tension of the wire at constant speed of call is also dependent on the diameter of the coil. When the latter is full, that is to say that it has a large diameter, the speed of travel of the wire at this level is low so that the coronelle must include a significant resistive torque to regulate the tension of This thread.

Au contraire, quand la bobine est presque complètement dévidée, la vitesse de défilement est nettement plus grande, de telle sorte que le couple résistant de la coronelle doit être plus faible.On the contrary, when the reel is almost completely unwound, the running speed is significantly higher, so that the resistive torque of the coronelle must be lower.

On a déjà proposé des dispositifs permettant de faire varier le couple résistant d'une coronelle, en utilisant par exemple un palpeur appuyé contre la périphérie de la bobine au moyen d'un ressort. Le frottement du palpeur sur l'extérieur de la bobine donne naissance à un couple résistant qui varie suivant le diamètre de la bobine, le frottement en question étant bien entendu d'autant plus important que le diamètre est plus grand. Toutefois, un tel mécanisme est compliqué et lourd, de plus il est malaisé à mettre en place, sans parler de son prix de revient qui est élevé.Devices have already been proposed making it possible to vary the resistive torque of a coronelle, for example by using a feeler pressed against the periphery of the coil by means of a spring. The friction of the probe on the outside of the coil gives rise to a resistive torque which varies according to the diameter of the coil, the friction in question being of course all the more important the larger the diameter. However, such a mechanism is complicated and cumbersome, moreover it is difficult to set up, not to mention its high cost price.

Les perfectionnements qui font l'objet de la présente invention visent à remédier aux inconvénients précités et à permettre la réalisation d'une coronelle comportant un dispositif simple et efficace pour faire varier son couple résistant en fonction du diamètre de la bobine.The improvements which are the subject of the present invention aim to remedy the aforementioned drawbacks and to allow the production of a coronelle comprising a simple and effective device for varying its resistive torque as a function of the diameter of the coil.

Conformément à l'invention entre les extrémités des deux branches de la coronelle on dispose une boucle d'un élément funiculaire élastique comportant une faible rigidité et qui vient frotter contre la périphérie de ladite bobine.According to the invention between the ends of the two branches of the coronelle there is a loop of an elastic funicular element having a low rigidity and which comes to rub against the periphery of said coil.

Le dessin annexé, donné à titre d'exemple, permettra de mieux comprendre l'invention, les caractéristiques qu'elle présente et les avantages qu'elle est susceptible de procurer :

  • Figure 1 est une vue partielle en perspective d'une broche à double torsion comportant une coronelle établie conformément à l'invention.
  • Figure 2 est une vue par dessus d'une coronelle équipée d'un dispositif suivant l'invention.
The appended drawing, given by way of example, will allow a better understanding of the invention, the characteristics which it presents and the advantages which it is capable of providing:
  • Figure 1 is a partial perspective view of a double twist spindle comprising a coronelle established in accordance with the invention.
  • Figure 2 is a top view of a coronelle equipped with a device according to the invention.

On a schématiquement illustré en fig. 1 les principales pièces d'une broche à double torsion comportant un axe tournant 1, pourvu d'un alésage central 1a par rapport auquel une bobine 2 reste angulairement fixe par des moyens connus, ladite bobine étant placée dans un pot 3 de forme cylindrique.Schematically illustrated in FIG. 1 the main parts of a double twist spindle having a rotating axis 1, provided with a central bore 1a with respect to which a coil 2 remains angularly fixed by known means, said coil being placed in a pot 3 of cylindrical shape.

On a illustré par un trait discontinu le disque 4 situé sous le pot 3 et qui tourne avec la broche 1. Il comporte un trou radial issu de cet alésage et débouchant sur une plage périphérique dudit disque. Le fil 5 provenant de la bobine 2 passe dans l'alésage 1, traverse le trou radial du disque 4 pour former un ballon 5a autour du pot 3.The disc 4 located under the pot 3 and which rotates with the spindle 1 has been illustrated by a broken line. It has a radial hole issuing from this bore and opening onto a peripheral surface of said disc. The wire 5 coming from the coil 2 passes through the bore 1, crosses the radial hole of the disc 4 to form a balloon 5a around the pot 3.

Deux méthodes sont utilisées pour réguler la tension du fil 5 ; la première consiste à ménager un frein de fil à l'intérieur de l'alésage 1a, tandis que la seconde se caractérise par l'utilisation d'une coronelle 6 montée à rotation libre par rapport à l'axe 1 et qui est associée à un dispositif assurant la création d'un couple résistant constant ou variable.Two methods are used to regulate the tension of the thread 5; the first consists in providing a wire brake inside the bore 1a, while the second is characterized by the use of a coronelle 6 mounted with free rotation relative to the axis 1 and which is associated with a device ensuring the creation of a constant or variable resistant torque.

La coronelle 6 est associée à un moyeu 7 monté à rotation libre autour de l'axe 1. Elle est réalisée au moyen de deux tronçons symétriques de fil d'acier, comme illustré en fig. 2. Chacun de ces tronçons comporte une partie centrale arrondie 6a qui enserre le moyeu 7 dans une gorge 7a de celui-ci et deux branches 6b, 6c dont l'une des extrémités comporte un crochet 6d, 6e. Les deux tronçons sont appliqués l'un contre l'autre et les extrémités libres des branches 6c sont soudées contre la partie correspondante des branches 6b de manière telle que les deux parties centrales 6a des deux tronçons soient situées dans le même plan.The coronelle 6 is associated with a hub 7 mounted for free rotation about the axis 1. It is produced by means of two symmetrical sections of steel wire, as illustrated in FIG. 2. Each of these sections has a rounded central part 6a which encloses the hub 7 in a groove 7a thereof and two branches 6b, 6c, one of the ends of which has a hook 6d, 6e. The two sections are applied against each other and the free ends of the branches 6c are welded against the corresponding part of the branches 6b so that the two central parts 6a of the two sections are located in the same plane.

Les crochets 6d, 6e de la coronelle 6 sont chacun destinés à maintenir un manchon 8 respectivement 9 orienté perpendiculairement au plan général de cette coronelle, de telle sorte qu'en pratique les manchons 8, 9 sont orientés verticalement lorsque la coronelle est en place. On observe en outre que chaque crochet 6d, 6e se prolonge par un guide-fil 6f, 6g dont le rôle est illustré en fig. 1, c'est-à-dire qu'il sert à guider le fil 5 entre la périphérie de la bobine 2 et l'alésage 1 a de l'axe 1.The hooks 6d, 6e of the coronelle 6 are each intended to hold a sleeve 8 respectively 9 oriented perpendicular to the general plane of this coronelle, so that in practice the sleeves 8, 9 are oriented vertically when the coronelle is in place. It is further observed that each hook 6d, 6e is extended by a thread guide 6f, 6g whose role is illustrated in FIG. 1, that is to say, it serves to guide the wire 5 between the periphery of the coil 2 and the bore 1 a of the axis 1.

Dans chacun des manchons 8, 9 est encastrée l'une des extrémités d'une boucle réalisée par un élément funiculaire élastique comportant une faible rigidité. Cet élément peut être avantageusement réalisé au moyen d'un crin de superpolyamide, le terme crin désignant un fil unique extrudé. Ce crin forme une boucle 10 qui, du fait de l'encastrement de ses extrémités dans les manchons verticaux 8 et 9, se trouve à l'état libre de la coronelle dans le plan de symétrie de celle-ci. Si l'on choisit comme matière de réalisation de la boucle 10 une matière telle que le « Nylon •, on comprend aisément que du fait de sa faible rigidité, si la boucle 10 est déportée latéralement, elle a tendance à revenir élastiquement dans le plan de symétrie de la coronelle. Mais en outre cette boucle présente une certaine souplesse qui lui permet, lorsque la coronelle est mise en place, d'entourer une partie de la périphérie de la bobine 2.In each of the sleeves 8, 9 is embedded one end of a loop formed by an elastic funicular element having low rigidity. This element can advantageously be produced by means of a superpolyamide horsehair, the term horsehair designating a single extruded wire. This horsehair forms a loop 10 which, due to the embedding of its ends in the vertical sleeves 8 and 9, is in the free state. of the coronelle in the plane of symmetry thereof. If one chooses as material for making the loop 10 a material such as "Nylon •, it is easily understood that due to its low rigidity, if the loop 10 is offset laterally, it tends to return elastically in the plane of symmetry of the coronelle. However, this loop also has a certain flexibility which allows it, when the coronelle is put in place, to surround part of the periphery of the coil 2.

Ainsi grâce à ses qualités élastiques et à l'effet de freinage dû à son frottement contre la périphérie de la bobine, la boucle 10 engendre un freinage de la coronelle qui est plus important lorsque le diamètre de la bobine est grand que lorsqu'il est faible. Autrement dit le couple résistant appliqué à la coronelle diminue au fur et à mesure que le diamètre de la bobine 2 se réduit.Thus thanks to its elastic qualities and the braking effect due to its friction against the periphery of the coil, the loop 10 generates braking of the coronelle which is more important when the diameter of the coil is large than when it is low. In other words the resistive torque applied to the coronelle decreases as the diameter of the coil 2 is reduced.

Il va de soi qu'en changeant la longueur et le diamètre du crin constituant la boucle 10 l'on peut faire varier le couple résistant et l'adapter au diamètre et à la qualité du fil 5 enroulé sur la bobine 2.It goes without saying that by changing the length and the diameter of the horsehair constituting the loop 10, the resistive torque can be varied and adapted to the diameter and quality of the wire 5 wound on the spool 2.

On a ainsi réalisé une coronelle à couple résistant variable dont l'action est particulièrement efficace et le prix de revient excessivement bas.A coronelle with variable resistive torque has thus been produced, the action of which is particularly effective and the cost price excessively low.

Claims (3)

1. Spindle-cap with a resisting torque which is variable as a function of the diameter of the bobbin mounted on a double-torsion spindle, characterised in that a loop (10) of an elastic funicular member which rubs against the periphery of the said bobbin (2) is arranged between the ends of the two arms (6b, 6c, 6c,-6b) of the spindle-cap (6).
2. Spindle-cap according to claim 1, characterised in that the loop (10) of its funicular member is formed by a fibre extruded from superpolyamide, the ends of which are inserted into two vertical sleeves (8, 9) which are secured to both ends of the spindle-cap (6), such that, following a lateral displacement, the said loop (10) returns elastically to its position in the plane of symmetry of the spindle-cap.
3. Spindle-cap according to claim 1, characterised in that at least one of its ends comprises a thread guide (6f, 6g).
EP83420028A 1982-03-03 1983-02-25 Double bar with a variable couple resistance Expired EP0088032B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8203872 1982-03-03
FR8203872A FR2522698A1 (en) 1982-03-03 1982-03-03 CORONAL WITH VARIABLE RESISTANT TORQUE

Publications (3)

Publication Number Publication Date
EP0088032A2 EP0088032A2 (en) 1983-09-07
EP0088032A3 EP0088032A3 (en) 1984-01-18
EP0088032B1 true EP0088032B1 (en) 1986-05-28

Family

ID=9271751

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83420028A Expired EP0088032B1 (en) 1982-03-03 1983-02-25 Double bar with a variable couple resistance

Country Status (6)

Country Link
US (1) US4487009A (en)
EP (1) EP0088032B1 (en)
JP (1) JPS58203127A (en)
DE (1) DE3363668D1 (en)
ES (1) ES520230A0 (en)
FR (1) FR2522698A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5665293A (en) * 1996-03-08 1997-09-09 Basf Corporation Method of making spun yarn packages multiple individually separable yarn ends
ITUD20030143A1 (en) * 2003-07-01 2005-01-02 Agnolo Armando D METHOD AND TENSIONING DEVICE FOR STABILIZING AND ADJUSTING THE THREAD TENSION IN A COIL WHEEL.

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1881252A (en) * 1927-01-22 1932-10-04 Nau-Touron Albert Ring type spinning machine
FR41597E (en) * 1932-03-29 1933-02-07 Improvements to devices for unwinding and rewinding
US2163711A (en) * 1937-06-12 1939-06-27 Western Electric Co Strand handling apparatus
US2241260A (en) * 1939-01-20 1941-05-06 Herr Mfg Co Inc Bobbin or yarn package holder
FR902929A (en) * 1943-02-20 1945-09-17 Gaston Verdier Ets Improvement in hosiery or other trades, with intermittent picking, in order to prevent twisting of the thread
US2366101A (en) * 1943-08-18 1944-12-26 Scott & Williams Inc Yarn holding means
US2664694A (en) * 1949-02-11 1954-01-05 Cluett Peabody & Co Inc Apparatus for twisting and winding yarns
FR1021052A (en) * 1950-06-28 1953-02-13 Coronelle
US3285531A (en) * 1965-01-22 1966-11-15 Babcock Electronics Corp De-spooling devices
US3445998A (en) * 1966-09-02 1969-05-27 Murata Machinery Ltd Tensioning method and device of two-for-one yarn twisters

Also Published As

Publication number Publication date
EP0088032A3 (en) 1984-01-18
US4487009A (en) 1984-12-11
ES8401537A1 (en) 1983-12-01
JPS58203127A (en) 1983-11-26
FR2522698A1 (en) 1983-09-09
EP0088032A2 (en) 1983-09-07
ES520230A0 (en) 1983-12-01
FR2522698B1 (en) 1984-05-25
DE3363668D1 (en) 1986-07-03

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