EP0069030B1 - Twisting spindle driven by an individual electric motor - Google Patents

Twisting spindle driven by an individual electric motor Download PDF

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Publication number
EP0069030B1
EP0069030B1 EP82420076A EP82420076A EP0069030B1 EP 0069030 B1 EP0069030 B1 EP 0069030B1 EP 82420076 A EP82420076 A EP 82420076A EP 82420076 A EP82420076 A EP 82420076A EP 0069030 B1 EP0069030 B1 EP 0069030B1
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EP
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Prior art keywords
spindle
motor
barrel
frame
fact
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Expired
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EP82420076A
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German (de)
French (fr)
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EP0069030A1 (en
Inventor
Jean Remontet
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Dite Asa Sa SA Ste
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Dite Asa Sa SA Ste
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    • 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
    • D01H1/14—Details
    • D01H1/20—Driving or stopping arrangements
    • D01H1/24—Driving or stopping arrangements for twisting or spinning arrangements, e.g. spindles
    • D01H1/244—Driving or stopping arrangements for twisting or spinning arrangements, e.g. spindles each spindle driven by an electric motor

Definitions

  • the present invention relates to an improvement made to pins used in the textile industry, in particular for twisting threads.
  • Twisting pins are devices which have been known for a very long time and consist essentially of a shaft (or spindle barrel) mounted to rotate freely on the frame of the machine by means of an appropriate bearing.
  • the tube around which the wire is wound is fitted onto the spindle barrel.
  • the spindle barrel, and consequently the spool of wire, can be driven in rotation in different ways.
  • the most widespread solution consists in driving the spindles of the machine by means of an endless belt drive brought into tangential contact with the base of the spindle barrel.
  • the invention relates to an improvement made to such spindles driven by an individual motor.
  • One of the main problems in such individually driven spindles is that of increasing the height of the center of gravity of the spool and the spindle, given that the motor is arranged above of the lower bearing of the system supporting said spindle.
  • Such an embodiment is however of a very complex design and above all does not solve the problem of lowering the center of gravity of the spindle / wire winding assembly towards the fixed frame of the machine, which limits therefore the operating speeds and the weight of the windings.
  • French patent FR-A-2,095,830 describes a solution allowing the height of the center of gravity of the coil and the motor to be reduced.
  • This solution consists in the use of a small motor, especially in height, this motor being constituted by a bipolar electric motor, in particular an asynchronous motor, the stator of which is provided with a flat annular winding. If by the choice of such an engine, a lowering of the center of gravity is logically obtained, the latter always remains nevertheless clearly arranged above the support frame, taking into account the fact that this engine is always disposed above the bearing supporting the spindle, and therefore consequently above said support frame.
  • the invention therefore relates to a twisting spindle, driven by an individual electric motor, according to claim 1.
  • FIG. 1 illustrates a textile machine comprising two twisting pins, designated by the general reference (1), in accordance with the invention.
  • Each of these twisting pins (1) is of the type driven by an individual electric motor (designated by the general reference 2) preferably a bipolar asynchronous motor supplied in a conventional manner (not shown) for example by an alternator.
  • This pin consists essentially by a barrel (3) intended to support the winding of wire (4) (not shown in Figure 1).
  • the barrel (3) is mounted to rotate freely on a support frame (6) constituted in this case by an inverted U-shaped profile, horizontal, attached to the carcass of the machine.
  • This spindle (1) is driven, as said above, by an individual motor (2), motor whose rotor (7) is fixed directly to the barrel (3) by means designated by the general reference (8) making it possible to secure the body (9) (and consequently the stator) of the motor (2).
  • the fixing of the body (9) of the motor (2) as well as the maintenance and the guiding of the spindle barrel are carried out using securing means (8) and this, by the through a rigid sleeve (5) surrounding the barrel (3), this sleeve (5) passing through the frame (6) and serving as a cage for the bearings (10, 11) allowing the spindle (1) to rotate.
  • the sleeve (5) has at its ends two flanges (12, 13), one (12) upper fixed elastically to the frame (6), the other (13) lower secured to the body (9) of the motor ( 2).
  • the means allowing the elastic fixing of the sleeve (5) advantageously consist of studs (14) based on elastomer, these studs (14), in an appropriate number, being in the embodiment illustrated in FIG. 1 , arranged between the upper flange (12) and the upper part of the frame (6) by means of fixing bolts whereas, in the embodiment illustrated in FIG. 2, these means are also constituted by studs (14) but which are arranged on either side of the upper part of the support frame (6), these studs being held by means of bolts (15).
  • the motor (2) is disposed at the end of the barrel (3), the connection of the assembly being produced in an elastic manner and the guiding of the barrel (3) by bearings (bearings 10, 11) arranged on either side of the upper part of the frame (6), it is possible to have a distribution of the masses on either side of the fixing points, and consequently, to bring back the center of gravity of the spindle / motor assembly substantially at the level of the frame (6).
  • Such an embodiment makes it possible to practically completely limit the vibrations and consequently to use a motor having as small an air gap as possible, which can therefore have optimum efficiency.
  • this spindle also has the advantage of being very quiet and, by design, can be easily disassembled, which promotes maintenance.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Description

La présente invention a trait à un perfectionnement apporté aux broches utilisées dans l'industrie textile notamment pour le retordage des fils.The present invention relates to an improvement made to pins used in the textile industry, in particular for twisting threads.

Les broches de retordage sont des dispositifs connus depuis fort longtemps et sont constituées essentiellement d'un arbre (ou fût de broche) monté libre en rotation sur le bâti de la machine par l'intermédiaire d'un palier approprié.Twisting pins are devices which have been known for a very long time and consist essentially of a shaft (or spindle barrel) mounted to rotate freely on the frame of the machine by means of an appropriate bearing.

Le tube autour duquel est enroulé le fil est emmanché sur le fût de la broche. L'entraînement en rotation du fût de la broche, et par suite de la bobine de fil, peut être réalisé de différentes manières.The tube around which the wire is wound is fitted onto the spindle barrel. The spindle barrel, and consequently the spool of wire, can be driven in rotation in different ways.

La solution la plus répandue consiste à entraîner les broches de la machine au moyen d'une commande par courroie sans fin amenée en contact tangentiel avec la base du fût de broche.The most widespread solution consists in driving the spindles of the machine by means of an endless belt drive brought into tangential contact with the base of the spindle barrel.

Afin d'augmenter les vitesses de production et également d'obtenir des enroulements d'un poids élevé, il a été proposé depuis fort longtemps, notamment dans le brevet des Etats- d'Amérique US-A-2274147, d'entraîner les broches individuellement au moyen d'un moteur électrique.In order to increase the production speeds and also to obtain windings of a high weight, it has been proposed for a very long time, in particular in the patent of the United States of America US-A-2274147, to drive the spindles individually by means of an electric motor.

L'invention concerne un perfectionnement apporté à de telles broches entraînées par un moteur individuel.The invention relates to an improvement made to such spindles driven by an individual motor.

L'un des principaux problèmes qui se pose dans de telles broches à entraînement individuel est celui de l'augmentation de la hauteur du centre de gravité de la bobine et de la broche, compte-tenu du fait que le moteur est disposé au-dessus du palier inférieur du systeme supportant ladite broche.One of the main problems in such individually driven spindles is that of increasing the height of the center of gravity of the spool and the spindle, given that the motor is arranged above of the lower bearing of the system supporting said spindle.

Cette augmentation de la hauteur du centre de gravité augmente donc les risques de vibration et limite les vitesses d'utilisation ainsi que la grosseur des enroulements de fils.This increase in the height of the center of gravity therefore increases the risk of vibration and limits the speeds of use as well as the size of the wire windings.

Le brevet des Etats-Unis d'Amérique US-A-2274147 décrit une solution qui permet, dans une certaine mesure, de résoudre le problème des vibrations. Cette solution consiste, d'une part, à monter le fût de la broche dans un palier à huile permettant également d'assurer la lubrification et, d'autre part, à interposer entre le bâti de la machine et le carter du moteur d'entraînement une couche de matière qui absorbe les vibrations, par exemple une couche de liège ou matériau équivalent.The patent of the United States of America US-A-2274147 describes a solution which allows, to a certain extent, to solve the problem of vibrations. This solution consists, on the one hand, of mounting the barrel of the spindle in an oil bearing also making it possible to ensure lubrication and, on the other hand, of interposing between the frame of the machine and the crankcase of the engine. entrainment a layer of material which absorbs vibrations, for example a layer of cork or equivalent material.

Un tel mode de réalisation est cependant d'une conception très complexe et surtout ne résoud pas le problème de l'abaissement du centre de gravité de l'ensemble broche/enroule- ment de fil vers le bâti fixe de la machine, ce qui limite donc les vitesses de fonctionnement et le poids des enroulements.Such an embodiment is however of a very complex design and above all does not solve the problem of lowering the center of gravity of the spindle / wire winding assembly towards the fixed frame of the machine, which limits therefore the operating speeds and the weight of the windings.

Le brevet français FR-A-2 095 830 décrit une solution permettant de diminuer la hauteur du centre de gravité de la bobine et du moteur. Cette solution consiste dans l'emploi d'un moteur de faibles dimensions, surtout en hauteur, ce moteur étant constitué par un moteur électrique bipolaire, notamment un moteur asynchrone, dont le stator est muni d'un enroulement annulaire plat. Si par le choix d'un tel moteur, on obtient logiquement un abaissement du centre de gravité, celui-ci reste toujours néanmoins disposé nettement au-dessus du bâti support, compte-tenu du fait que ce moteur est toujours disposé au-dessus du palier supportant la broche, et donc par suite au-dessus dudit bâti support.French patent FR-A-2,095,830 describes a solution allowing the height of the center of gravity of the coil and the motor to be reduced. This solution consists in the use of a small motor, especially in height, this motor being constituted by a bipolar electric motor, in particular an asynchronous motor, the stator of which is provided with a flat annular winding. If by the choice of such an engine, a lowering of the center of gravity is logically obtained, the latter always remains nevertheless clearly arranged above the support frame, taking into account the fact that this engine is always disposed above the bearing supporting the spindle, and therefore consequently above said support frame.

Or, on a trouvé et c'est ce qui fait l'objet de la présente invention, un nouveau type de broche entraînée par un moteur électrique individuel qui surmonte les inconvénients des broches antérieures par le fait que les vibrations sont amorties efficacement et que, par ailleurs, le centre de gravité de la broche et de l'enroulement qu'elle supporte se trouve pratiquement ramené au niveau du bâti fixe de la machine supportant cette dite broche.However, we have found and this is what is the subject of the present invention, a new type of spindle driven by an individual electric motor which overcomes the drawbacks of the previous spindles by the fact that the vibrations are effectively damped and that, moreover, the center of gravity of the spindle and of the winding which it supports is practically reduced to the level of the fixed frame of the machine supporting this said spindle.

D'une manière générale, l'invention concerne donc une broche de retordage, entraînée par un moteur électrique individuel, selon la revendication 1.In general, the invention therefore relates to a twisting spindle, driven by an individual electric motor, according to claim 1.

De préférence, selon l'invention:

  • - le moteur est un moteur bipolaire asynchrone conventionnel,
  • - les roulements guidant et supportant le fût de la broche sont disposés de part et d'autre du bâti fixe de la machine,
  • - la liaison élastique entre la bride rigide et le bâti est obtenue au moyen de plots, par exemple en élastomère, interposés entre la colerette supérieure et le bâti support ou de part et d'autre du bâti support.
Preferably, according to the invention:
  • - the motor is a conventional asynchronous bipolar motor,
  • - the bearings guiding and supporting the spindle barrel are arranged on either side of the fixed frame of the machine,
  • - The elastic connection between the rigid flange and the frame is obtained by means of studs, for example made of elastomer, interposed between the upper flange and the support frame or on either side of the support frame.

L'invention et les avantages qu'elle apporte seront cependant mieux compris grâce à l'exemple de réalisation donné ci-après à titre indicatif mais non limitatif et qui est illustré par les schémas annexés dans lesquels:

  • - la figure 1 est une vue schématique en perspective montrant en coupe une broche conforme à l'invention,
  • - la figure 2 est une vue de détail en coupe d'une telle broche,
  • - la figure 3 illustre, en vue de dessus, un système de freinage individuel associé à une telle broche.
The invention and the advantages which it brings will however be better understood thanks to the embodiment given below for information but not limitation and which is illustrated by the attached diagrams in which:
  • FIG. 1 is a schematic perspective view showing in section a pin according to the invention,
  • FIG. 2 is a detailed view in section of such a pin,
  • - Figure 3 illustrates, in top view, an individual braking system associated with such a spindle.

Si l'on se reporte aux figures annexées, la figure 1 illustre une machine textile comportant deux broches de retordage, désignées par la référence générale (1), conformes à l'invention.Referring to the appended figures, FIG. 1 illustrates a textile machine comprising two twisting pins, designated by the general reference (1), in accordance with the invention.

Chacune de ces broches de retordage (1) est du type entraîné par un moteur électrique individuel (désigné par la référence générale 2) de préférence un moteur asynchrone bipolaire alimenté de manière conventionnelle (non représenté) par exemple par un alternateur.Each of these twisting pins (1) is of the type driven by an individual electric motor (designated by the general reference 2) preferably a bipolar asynchronous motor supplied in a conventional manner (not shown) for example by an alternator.

Cette broche est constituée essentiellement par un fût (3) destiné à supporter l'enroulement de fil (4) (non représenté à la figure 1).This pin consists essentially by a barrel (3) intended to support the winding of wire (4) (not shown in Figure 1).

Le fût (3) est monté libre en rotation sur un bâti support (6) constitué dans le cas présent par un profilé en forme de U renversé, horizontal, rapporté sur la carcasse de la machine.The barrel (3) is mounted to rotate freely on a support frame (6) constituted in this case by an inverted U-shaped profile, horizontal, attached to the carcass of the machine.

Cette broche (1) est entraînée, comme dit précédemment, par un moteur individuel (2), moteur dont le rotor (7) est fixé directement sur le fût (3) par des moyens désignés par la référence générale (8) permettant de solidariser le corps (9) (et par suite le stator) du moteur (2).This spindle (1) is driven, as said above, by an individual motor (2), motor whose rotor (7) is fixed directly to the barrel (3) by means designated by the general reference (8) making it possible to secure the body (9) (and consequently the stator) of the motor (2).

Conformément à l'invention, la fixation du corps (9) du moteur (2) ainsi que le maintien et le guidage du fût de la broche, sont réalisés à l'aide des moyens de solidarisation (8) et ce, par l'intermédiaire d'un manchon (5) rigide entourant le fût (3), ce manchon (5) traversant le bâti (6) et servant de cage aux roulements (10, 11) permettant la rotation de la broche (1). Le manchon (5) comporte à ses extrémités deux colerettes (12, 13), l'une (12) supérieure fixée de manière élastique au bâti (6), l'autre (13) inférieure solidaire du corps (9) du moteur (2).According to the invention, the fixing of the body (9) of the motor (2) as well as the maintenance and the guiding of the spindle barrel, are carried out using securing means (8) and this, by the through a rigid sleeve (5) surrounding the barrel (3), this sleeve (5) passing through the frame (6) and serving as a cage for the bearings (10, 11) allowing the spindle (1) to rotate. The sleeve (5) has at its ends two flanges (12, 13), one (12) upper fixed elastically to the frame (6), the other (13) lower secured to the body (9) of the motor ( 2).

Les moyens permettant la fixation de manière élastique du manchon (5) sont avantageusement constitués par des plots (14) à base d'élastomère, ces plots (14), en nombre approprié, étant dans l'exemple de réalisation illustré par la figure 1, disposés entre la colerette supérieure (12) et la partie supérieure du bâti (6) au moyen de boulons de fixation alors que, dans le mode de réalisation illustré par la figure 2, ces moyens sont également constitués par des plots (14) mais qui sont disposés de part et d'autre de la partie supérieure du bâti support (6), ces plots étant maintenus au moyen de boulons (15).The means allowing the elastic fixing of the sleeve (5) advantageously consist of studs (14) based on elastomer, these studs (14), in an appropriate number, being in the embodiment illustrated in FIG. 1 , arranged between the upper flange (12) and the upper part of the frame (6) by means of fixing bolts whereas, in the embodiment illustrated in FIG. 2, these means are also constituted by studs (14) but which are arranged on either side of the upper part of the support frame (6), these studs being held by means of bolts (15).

Grâce à un tel mode de réalisation selon lequel le moteur (2) est disposé au bout du fût (3), la liaison de l'ensemble étant réalisée de manière élastique et le guidage du fût (3) par des paliers (roulements 10, 11) disposés de part et d'autre de la partie supérieure du bâti (6), il est possible d'avoir une répartition des masses de part et d'autre des points de fixation, et en conséquence, de ramener le centre de gravité de l'ensemble broche/moteur sensiblement au niveau du bâti (6).Thanks to such an embodiment according to which the motor (2) is disposed at the end of the barrel (3), the connection of the assembly being produced in an elastic manner and the guiding of the barrel (3) by bearings (bearings 10, 11) arranged on either side of the upper part of the frame (6), it is possible to have a distribution of the masses on either side of the fixing points, and consequently, to bring back the center of gravity of the spindle / motor assembly substantially at the level of the frame (6).

Un tel mode de réalisation permet de limiter pratiquement complètement les vibrations et par suite, d'utiliser un moteur ayant un entrefer aussi faible que possible qui peut donc avoir en conséquence un rendement optimum.Such an embodiment makes it possible to practically completely limit the vibrations and consequently to use a motor having as small an air gap as possible, which can therefore have optimum efficiency.

Outre le fait qu'une telle conception permet d'éliminer les vibrations grâce à l'abaissement du centre de gravité, et au montage élastique de l'ensemble sur le bâti support, il est également possible d'obtenir un arrêt individuel des broches. Cela peut être obtenu, ainsi que le montre de manière schématique la figure 3, en associant à chaque broche un système de freinage individuel incorporé, lequel peut être constitué par exemple par une machoire (16) agissant sur le fût de la broche. Cette machoire (16) peut être actionnée pneumatiquement ou électriquement par tout moyen connu qu'il est inutile de décrire en détail.Besides the fact that such a design makes it possible to eliminate vibrations thanks to the lowering of the center of gravity, and to the elastic mounting of the assembly on the support frame, it is also possible to obtain an individual stop of the pins. This can be obtained, as shown schematically in Figure 3, by associating with each spindle an individual incorporated braking system, which can be constituted for example by a jaw (16) acting on the barrel of the spindle. This jaw (16) can be actuated pneumatically or electrically by any known means which it is unnecessary to describe in detail.

Enfin, cette broche présente également comme avantage d'être très silencieuse et, de par sa conception, peut être facilement démontée, ce qui en favorise l'entretien.Finally, this spindle also has the advantage of being very quiet and, by design, can be easily disassembled, which promotes maintenance.

Bien entendu, la présente invention n'est pas limitée à l'exemple de réalisation décrit précédemment mais, elle en couvre également toutes les variantes, réalisées dans le même esprit, dans le cadre des revendications.Of course, the present invention is not limited to the embodiment described above, but it also covers all the variants thereof, produced in the same spirit, within the framework of the claims.

Ainsi, si on utilise de préférence comme moyen d'amortissement élastique des plots individuels répartis circonférentiellement autour du fût de la broche, il pourrait être envisagé d'utiliser des plots monobloc se présentant sous la forme d'une bague. Il est évident que de tels plots peuvent être remplacés par tout moyen équivalent, par exemple des systèmes à lames élastiques.Thus, if preferably used as elastic damping means of the individual studs distributed circumferentially around the barrel of the spindle, it could be envisaged to use one-piece studs in the form of a ring. It is obvious that such studs can be replaced by any equivalent means, for example elastic blade systems.

Claims (4)

1. A twisting spindle (1) driven by an individual electric motor (2) of the type comprising:
- a spindle barrel (3) mounted for free rotation on a support frame (6),
- a motor (2) whose rotor (7) is rigidly connected with the barrel (3),
- means (8) for rigidly fastening the motor body (9) (or stator) of the motor (2) with said support frame (6) as well as the maintaining and the guiding of the barrel (3) of the spindle (1) are effected via a rigid sleeve (5) which surrounds the barrel (3) of the spindle, said sleeve being fastened elastically to the frame (6),

characterized by the fact that said sleeve (5):
- passing through the frame (6) and serving as a cage for two bearings (10, 11) which permit rotation of the spindle and are disposed on both sides of the support frame (6),
- having at its ends two collars (12, 13), the upper one (12) being fastened elastically to the frame (6) while the lower one (13) is rigidly connected to the body (9) of the motor (2) which is mounted at the end of the shaft on the outside of the bearings.
2. The spindle of claim 1, characterized by the fact that the elastic attachment of spindle (1) on the frame (6) is obtained by means of dampening studs, in rubber for example, arranged between the upper part of the frame (6) and the lower face of the collar (12), the holding of the assembly being obtained by means of bolts (15).
3. The twisting spindle of one of claim 1 or 2, characterized by the fact that the motor (2) is an asynchronous two-pole electric motor.
4. The twisting spindle of any one of claims 1 to 3, characterized by the fact that is comprises an incoporated individual braking system (16) comprising a jaw brake acting on the barrel of the spindle.
EP82420076A 1981-06-29 1982-06-14 Twisting spindle driven by an individual electric motor Expired EP0069030B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8112918A FR2508499A1 (en) 1981-06-29 1981-06-29 TWISTING PIN DRIVEN BY AN INDIVIDUAL ELECTRIC MOTOR
FR8112918 1981-06-29

Publications (2)

Publication Number Publication Date
EP0069030A1 EP0069030A1 (en) 1983-01-05
EP0069030B1 true EP0069030B1 (en) 1985-02-13

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EP82420076A Expired EP0069030B1 (en) 1981-06-29 1982-06-14 Twisting spindle driven by an individual electric motor

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US (1) US4420926A (en)
EP (1) EP0069030B1 (en)
JP (1) JPS584555U (en)
DE (1) DE3262309D1 (en)
ES (1) ES8305063A1 (en)
FR (1) FR2508499A1 (en)

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DE3262309D1 (en) 1985-03-28
ES513540A0 (en) 1983-03-16
JPS6243970Y2 (en) 1987-11-17
EP0069030A1 (en) 1983-01-05
FR2508499B1 (en) 1984-02-10
US4420926A (en) 1983-12-20
JPS584555U (en) 1983-01-12
FR2508499A1 (en) 1982-12-31
ES8305063A1 (en) 1983-03-16

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