EP0417021B1 - Apparatus for automatic wear compensation of the combing machine round brush - Google Patents

Apparatus for automatic wear compensation of the combing machine round brush Download PDF

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Publication number
EP0417021B1
EP0417021B1 EP19900440077 EP90440077A EP0417021B1 EP 0417021 B1 EP0417021 B1 EP 0417021B1 EP 19900440077 EP19900440077 EP 19900440077 EP 90440077 A EP90440077 A EP 90440077A EP 0417021 B1 EP0417021 B1 EP 0417021B1
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EP
European Patent Office
Prior art keywords
circular brush
circular
movement
brush
comb
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EP19900440077
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German (de)
French (fr)
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EP0417021A1 (en
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N Schlumberger SAS
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N Schlumberger SAS
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G19/00—Combing machines
    • D01G19/06—Details
    • D01G19/22—Arrangements for removing, or disposing of, noil or waste

Definitions

  • the present invention relates to the textile industry, and more particularly to straight combing machines, and relates to an automatic compensation device for the wear of the circular brush of a straight combing machine.
  • the short fibers On a straight comb, the short fibers, the length of which can be adjusted, are separated from the long fibers by the circular comb and the fixed comb. These short fibers thus eliminated form the blister.
  • the circular comb therefore brings its coat onto the circular brush which is discharged from it by the doffer. The pod is then detached from the doffer and collected in the pod tray.
  • the circular brush enters the bars of the circular comb to take out the blister and bring it to the doffer.
  • the circular brush rotates faster than the circular comb to clean it well. Therefore, by entering the bars of the circular comb, the tufts of the circular brush are pushed back and, after a certain time, remain folded back and are therefore considerably worn.
  • document CH-A-391 529 also discloses a machine for combing fibers in the form of a sheet, comprising in particular a rotary brush which can be, alternatively, close and distant from the comb cylinder.
  • the tilting movements of the rotary brush towards the painter cylinder are obtained by means of articulated arms secured to the axis of the brush and provided with a feeler member cooperating with a cam fixed on the shaft of the painter cylinder. This results in the maintenance of a constant gap between the brush and the cylinder, whatever the wear of said brush.
  • the device disclosed in document CH-A-391 529 does not therefore make it possible to solve the problems linked to the wear of the circular brush of a combing machine.
  • the object of the present invention is to overcome all the aforementioned drawbacks arising from the wear of the circular brush of a combing machine.
  • a rectilinear combing machine characterized in that it is automatic and in that it is essentially constituted by an automatic control device, controlling the position of the circular brush and controlling the movement of the latter, by means of at least one actuator, in at least one direction perpendicular to its axis.
  • Figure 1 of the accompanying drawings shows a fixed comb assembly 1 - circular comb 2 - circular brush 3 - doffer 4 - detaching comb 5 of a straight comb combing a ribbon 6 of fibers.
  • the device for compensating for the wear of the circular brush of a straight combing machine is automatic, and essentially consists, as shown more particularly in FIGS. 2 and 3 of the accompanying drawings, by a control device.
  • automatic 7 controlling the position of the circular brush 3 and controlling the movement of the latter, by means of at least one actuator 8, in at least one direction perpendicular to its axis 9.
  • the circular brush 3 can therefore more or less approach the circular comb 2 and / or the doffer 4 according to its direction and its direction of movement. If, therefore, the circular brush 3 approaches the circular comb 2, the tufts 10, with which it is furnished, penetrate, even if they are curved or folded, between the needles 11 of the circular comb 2 to their base and therefore rid them completely short fibers cluttering them. On the other hand, the needles 12 of the doffer 4 do not penetrate into the tufts 10 of the circular brush 3, but remain tangent to the latter and may even have a small play with them.
  • the position of the circular brush 3 must therefore be such that it ensures, on the one hand, an optimal interpenetration between the circular brush 3 and the circular comb 2 and, on the other hand, the tangency between the circular brush 3 and the doffer 4.
  • the actuator 8 is constituted by an electric motor 13, reversible or provided with a reduction gearbox 14, controlled by the automatic control device 7, and by a mechanical device 15, transforming the movement of rotation of said electric motor 13 in translational movement of the circular brush 3.
  • the mechanical device 15 consists of a shaft 16, driven in rotation by the electric motor 13, said shaft 16 carrying two pinions 18 and 18 ′ meshing, each with a pinion with corresponding perpendicular angle 19 or 19 ′, integral with a screw 20 or 20 ′ subject in translation by a stop 21 or 21 ′, and each actuating a movable bearing 22 or 22 ′.
  • each movable bearing 22 or 22 ′ comprises a bearing 23 or 23 ′ as end support for the axis 9, as well as a nut 24 or 24 ′, cooperating with the screw 20 or 20 ′ of corresponding drive, and allowing the displacement in translation of the axis 9 of the circular brush 3, in a horizontal plane, in a direction perpendicular to the axes of the circular comb 2 and of the doffer 4 and in one of the two directions of displacement 35 or 36, depending on the direction of rotation of the shaft 16 ( Figure 2).
  • a mechanical device 15 as described above, mounted on a frame 17, ensures synchronous movement of the two mobile bearings 22 and 22 ′, and therefore retains the parallelism between the circular brush 3, on the one hand, and the doffer 4 and the circular comb 2, on the other hand.
  • the actuator 8 is constituted by the mechanical device 15 and by a ratchet wheel driven by a pawl actuated by a jack, either pneumatically or operationally hydraulic.
  • the ratchet wheel is then mounted directly on the shaft 16 and replaces, in this case, the electric motor 13.
  • the device which is the subject of the invention comprises pneumatic or hydraulic jacks 25, 25 ′ allowing the circular brush 3 to be locked in place in the position controlled by the automatic control device 7. job.
  • This locking takes place in synchronism with the movements of movement of the axis 9 of the circular brush 3.
  • the automatic control device 7 comprises a programmable servo 26, as well as sensors 27, making it possible to adjust the periodicity and the value of the horizontal displacement of the circular brush 3, to achieve a controlled force clamping thereof and, to fix, by driving it with an electric motor 28 at variable speed, the speed of rotation of said circular brush 3, as a function or independently of its position.
  • the drive of the circular brush 3 can also be carried out by means of sprockets, chains or belts.
  • the device, object of the invention also includes a display device 29, making it possible to constantly check the position and the state of the circular brush 3, as well as the data of the sensors 27.
  • the device, object of the invention comprises an automatic stop of operation 30 of the straight combing machine, connected to at least one limit switch 31, as well as at least one device 32 for indicating the wear of the tufts 10 of the circular brush 3, such as, for example, an indicator light, an audible warning, etc.
  • the wear signaling device 32 therefore warns the user of the imminent need for a change of the circular brush 3, hence the possibility of a preliminary organization of this change, and therefore a saving of time in machine stop. .
  • the automatic operating stop 30 comes into action when the circular brush 3 is completely worn out, and stops the combing machine.
  • the device according to the invention further comprises manual displacement control means 33, usable after disconnection of the automatic control device 7 using a selection device 34 of manual or automatic movement mode.
  • the sheet of incoming fibers 6 is combed, on the one hand, by the circular comb 2 and, on the other hand, by the fixed comb 1.
  • the short fibers thus removed from the sheet of incoming fibers 6 form the blister which agglomerates on the circular comb 2.
  • the latter is discharged from its blister and cleaned by the circular brush 3.
  • This cleaning operation of the circular comb 2 is carried out because, said circular comb 2 and the circular brush 3 rotating respectively in the directions of rotation indicated in FIG. 1, the circular brush 3 rotates faster than the circular comb 2.
  • the doffer 4 also rotating in the direction of rotation indicated in FIG.
  • the veil 6 ′ composed only of long combed fibers, is then reformed on a tear-off leather, condensed into a ribbon by a funnel and placed in a pot by rollers.
  • the combed ribbon, produced from the veil 6 ′, constitutes the product leaving the rectilinear combing machine.
  • the motor 13 rotates the shaft 16 on which are mounted the pinions 18 and 18 ′ which transmit the rotation respectively to the pinions 19 and 19 ′ secured to the screws 20 and 20 ′.
  • the latter held in translation by the stops 21 and 21 'move, by their rotation, the bearings 22 and 22' which support, via the bearings 23 and 23 ', the axis 9 of the circular brush 3.
  • the displacement of the circular brush 3 is done according to arrows 35 and 36, namely in the direction of arrow 35, in normal operation, that is to say when it is necessary to compensate for the wear of the tufts 10, and in the direction of arrow 36 when it is necessary to disengage the circular brush 3 to replace it.
  • the wear compensation of the circular brush 3 can be done continuously or periodically.
  • the constant cleanliness of the circular comb 2 ensures a better quality of work for the rectilinear combing machine, this constant cleanliness being due to the very regular cleaning of the circular comb 2. In fact, the circular comb 2 being cleaned more efficiently , the outgoing product is automatically of better quality.
  • the automatic wear compensation of the circular brush 3 has an extended service life and is, in general, better exploited. In addition, it also avoids many stops of the machine, hence a significant contribution to increasing the performance of the straight combing machine.

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  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Description

La présente invention concerne l'industrie textile, et plus particulièrement les peigneuses rectilignes, et a pour objet un dispositif de compensation automatique de l'usure de la brosse circulaire d'une peigneuse rectiligne.The present invention relates to the textile industry, and more particularly to straight combing machines, and relates to an automatic compensation device for the wear of the circular brush of a straight combing machine.

Sur une peigneuse rectiligne, les fibres courtes, dont on peut régler la longueur, sont séparées des fibres longues par le peigne circulaire et par le peigne fixe. Ces fibres courtes ainsi éliminées forment la blousse. Le peigne circulaire amène donc sa blousse sur la brosse circulaire qui en est déchargée par le doffer. La blousse est ensuite détachée du doffer et récupérée dans le bac à blousse.On a straight comb, the short fibers, the length of which can be adjusted, are separated from the long fibers by the circular comb and the fixed comb. These short fibers thus eliminated form the blister. The circular comb therefore brings its coat onto the circular brush which is discharged from it by the doffer. The pod is then detached from the doffer and collected in the pod tray.

Actuellement, la brosse circulaire pénètre dans les barrettes du peigne circulaire pour en sortir la blousse et l'amener au doffer. La brosse circulaire tourne plus vite que le peigne circulaire pour bien le nettoyer. De ce fait, en pénétrant dans les barrettes du peigne circulaire, les touffes de la brosse circulaire sont repoussées en arrière et, au bout d'un certain temps, restent repliées vers l'arrière et sont, par conséquent, considérablement usées.Currently, the circular brush enters the bars of the circular comb to take out the blister and bring it to the doffer. The circular brush rotates faster than the circular comb to clean it well. Therefore, by entering the bars of the circular comb, the tufts of the circular brush are pushed back and, after a certain time, remain folded back and are therefore considerably worn.

Il en résulte de nombreux inconvénients tels que, notamment, d'une part, une efficacité de la brosse circulaire quasiment nulle puisque les touffes ne pénètrent plus entre les aiguilles du peigne circulaire et n'en sortent plus la blousse, d'autre part, une efficacité du peigne circulaire considérablement amoindrie, car il s'engorge du fait que la blousse n'est plus évacuée et reste sur lui et, enfin, des garnissages fréquents de la brosse circulaire, très onéreux et provoquant de nombreux arrêts machine qui diminuent nettement le rendement de celle-ci.This results in numerous drawbacks such as, in particular, on the one hand, an efficiency of the circular brush almost zero since the tufts no longer penetrate between the needles of the circular comb and no longer leave the blister thereon, on the other hand, a considerably reduced efficiency of the circular comb, because it becomes engorged by the fact that the blister is no longer discharged and remains on it and, finally, frequent fillings of the circular brush, very expensive and causing numerous machine stops which clearly decrease the yield thereof.

Pour éviter ces inconvénients, il a été proposé de rendre l'axe de rotation de la brosse circulaire mobile, c'est-à-dire réglable. En effet, lorsque la brosse s'use, son diamètre diminue, et ainsi, en pouvant régler sa position, il est possible de rattraper l'usure de ses touffes afin qu'elles pénètrent toujours bien dans le peigne circulaire et parviennent à remplir correctement leur fonction. Cette compensation par déplacement de l'axe de la brosse circulaire, c'est-à-dire ce rattrapage de l'usure de ladite brosse par rapport à ses organes voisins, est fait actuellement manuellement et, par conséquent, uniquement de manière sporadique et après constatation de la dégradation de la qualité du peignage.To avoid these drawbacks, it has been proposed to make the axis of rotation of the circular brush mobile, that is to say adjustable. Indeed, when the brush wears out, its diameter decreases, and thus, by being able to adjust its position, it is possible to catch the wear of its tufts so that they always penetrate well into the circular comb and manage to fill correctly their function. This compensation by displacement of the axis of the circular brush, that is to say this catching up of the wear of said brush with respect to its neighboring members, is currently done manually and, therefore, only sporadically and after finding the deterioration in the quality of combing.

Par ailleurs, on connaît également par le document CH-A-391 529 une machine à peigner des fibres sous forme de nappe, comportant notamment une brosse rotative pouvant être, de manière alternative, rapprochée et éloignée du cylindre peigneur.Furthermore, document CH-A-391 529 also discloses a machine for combing fibers in the form of a sheet, comprising in particular a rotary brush which can be, alternatively, close and distant from the comb cylinder.

Les mouvements de basculement de la brosse rotative vers le cylindre peigneur sont obtenus au moyen de bras articulés solidaires de l'axe de la brosse et munis d'un organe tâteur coopérant avec une came fixée sur l'arbre du cylindre peigneur. Il en résulte le maintien d'un écart constant entre la brosse et le cylindre, ce quelle que soit l'usure de ladite brosse.The tilting movements of the rotary brush towards the painter cylinder are obtained by means of articulated arms secured to the axis of the brush and provided with a feeler member cooperating with a cam fixed on the shaft of the painter cylinder. This results in the maintenance of a constant gap between the brush and the cylinder, whatever the wear of said brush.

Le dispositif divulgué par le document CH-A-391 529 ne permet, par conséquent, pas de solutionner les problèmes liés à l'usure de la brosse circulaire d'une peigneuse.The device disclosed in document CH-A-391 529 does not therefore make it possible to solve the problems linked to the wear of the circular brush of a combing machine.

La présente invention a pour objet de pallier tous les inconvénients précités découlant de l'usure de la brosse circulaire d'une peigneuse.The object of the present invention is to overcome all the aforementioned drawbacks arising from the wear of the circular brush of a combing machine.

Elle a, en effet, pour objet un dispositif de compensation de l'usure de la brosse circulaire d'une peigneuse rectiligne, caractérisé en ce qu'il est automatique et en ce qu'il est essentiellement constitué par un dispositif de commande automatique, contrôlant la position de la brosse circulaire et commandant le déplacement de celle-ci, au moyen d'au moins un actionneur, dans au moins une direction perpendiculaire à son axe.Its purpose is, in fact, to provide a device for compensating for the wear of the circular brush. a rectilinear combing machine, characterized in that it is automatic and in that it is essentially constituted by an automatic control device, controlling the position of the circular brush and controlling the movement of the latter, by means of at least one actuator, in at least one direction perpendicular to its axis.

L'invention sera mieux comprise grâce à la description ci-après, qui se rapporte à des modes de réalisation préférés, donnés à titre d'exemples non limitatifs, et expliqués avec référence aux dessins schématiques annexés, dans lesquels :

  • la figure 1 est une vue en élévation latérale et en coupe d'une peigneuse rectiligne comportant la brosse circulaire déplaçable conformément à l'invention ;
  • la figure 2 est une vue de dessus de la brosse circulaire munie de l'actionneur faisant partie du dispositif conforme à l'invention, et
  • la figure 3 est un schéma bloc synoptique du dispositif conforme à l'invention.
The invention will be better understood thanks to the description below, which relates to preferred embodiments, given by way of nonlimiting examples, and explained with reference to the appended schematic drawings, in which:
  • Figure 1 is a side elevational view in section of a straight combing machine having the movable circular brush according to the invention;
  • FIG. 2 is a top view of the circular brush provided with the actuator forming part of the device according to the invention, and
  • Figure 3 is a block diagram of the device according to the invention.

La figure 1 des dessins annexés représente un ensemble peigne fixe 1 - peigne circulaire 2 - brosse circulaire 3 - doffer 4 - peigne détacheur 5 d'une peigneuse rectiligne traitant un ruban 6 de fibres.Figure 1 of the accompanying drawings shows a fixed comb assembly 1 - circular comb 2 - circular brush 3 - doffer 4 - detaching comb 5 of a straight comb combing a ribbon 6 of fibers.

Conformément à l'invention, le dispositif de compensation de l'usure de la brosse circulaire d'une peigneuse rectiligne est automatique, et est essentiellement constitué, comme le montrent plus particulièrement les figures 2 et 3 des dessins annexés, par un dispositif de commande automatique 7, contrôlant la position de la brosse circulaire 3 et commandant le déplacement de celle-ci, au moyen d'au moins un actionneur 8, dans au moins une direction perpendiculaire à son axe 9.In accordance with the invention, the device for compensating for the wear of the circular brush of a straight combing machine is automatic, and essentially consists, as shown more particularly in FIGS. 2 and 3 of the accompanying drawings, by a control device. automatic 7, controlling the position of the circular brush 3 and controlling the movement of the latter, by means of at least one actuator 8, in at least one direction perpendicular to its axis 9.

La brosse circulaire 3 peut donc se rapprocher plus ou moins du peigne circulaire 2 et/ou du doffer 4 suivant sa direction et son sens de déplacement. Si donc, la brosse circulaire 3 se rapproche du peigne circulaire 2, les touffes 10, dont elle est garnie, pénètrent, même si elles sont courbées ou repliées, entre les aiguilles 11 du peigne circulaire 2 jusqu'à leur base et les débarrassent donc complètement des fibres courtes qui les encombrent. Par contre, les aiguilles 12 du doffer 4 ne pénètrent pas dans les touffes 10 de la brosse circulaire 3, mais restent tangentes à ces dernières et peuvent même présenter un petit jeu avec celles-ci. La position de la brosse circulaire 3 doit donc être telle qu'elle assure, d'une part, une interpénétration optimale entre la brosse circulaire 3 et le peigne circulaire 2 et, d'autre part, la tangence entre la brosse circulaire 3 et le doffer 4.The circular brush 3 can therefore more or less approach the circular comb 2 and / or the doffer 4 according to its direction and its direction of movement. If, therefore, the circular brush 3 approaches the circular comb 2, the tufts 10, with which it is furnished, penetrate, even if they are curved or folded, between the needles 11 of the circular comb 2 to their base and therefore rid them completely short fibers cluttering them. On the other hand, the needles 12 of the doffer 4 do not penetrate into the tufts 10 of the circular brush 3, but remain tangent to the latter and may even have a small play with them. The position of the circular brush 3 must therefore be such that it ensures, on the one hand, an optimal interpenetration between the circular brush 3 and the circular comb 2 and, on the other hand, the tangency between the circular brush 3 and the doffer 4.

Selon une caractéristique de l'invention, l'actionneur 8 est constitué par un moteur électrique 13, réversible ou muni d'un réducteur-inverseur 14, commandé par le dispositif de commande automatique 7, et par un dispositif mécanique 15, transformant le mouvement de rotation dudit moteur électrique 13 en mouvement de translation de la brosse circulaire 3.According to a characteristic of the invention, the actuator 8 is constituted by an electric motor 13, reversible or provided with a reduction gearbox 14, controlled by the automatic control device 7, and by a mechanical device 15, transforming the movement of rotation of said electric motor 13 in translational movement of the circular brush 3.

En intercalant, en outre, un embrayage entre le moteur électrique 13 et le réducteur-inverseur 14, ou entre le réducteur-inverseur 14 et le dispositif mécanique 15, il est possible de prévoir une commande manuelle du déplacement de la brosse circulaire 3.By interposing, in addition, a clutch between the electric motor 13 and the gear reducer 14, or between the gear reducer 14 and the mechanical device 15, it is possible to provide manual control of the movement of the circular brush 3.

Comme le montre la figure 2 des dessins annexés, le dispositif mécanique 15 est constitué par un arbre 16, entraîné en rotation par le moteur électrique 13, ledit arbre 16 portant deux pignons d'angle 18 et 18′ engrenant, chacun, avec un pignon d'angle perpendiculaire 19 ou 19′ correspondant, solidaire d'une vis 20 ou 20′ assujettie en translation par une butée 21 ou 21′, et actionnant chacune un palier mobile 22 ou 22′ .As shown in Figure 2 of the accompanying drawings, the mechanical device 15 consists of a shaft 16, driven in rotation by the electric motor 13, said shaft 16 carrying two pinions 18 and 18 ′ meshing, each with a pinion with corresponding perpendicular angle 19 or 19 ′, integral with a screw 20 or 20 ′ subject in translation by a stop 21 or 21 ′, and each actuating a movable bearing 22 or 22 ′.

Selon une autre caractéristique de l'invention, chaque palier mobile 22 ou 22′ comporte un roulement 23 ou 23′ comme support d'extrémité de l'axe 9, ainsi qu'un écrou 24 ou 24′, coopérant avec la vis 20 ou 20′ d'entraînement correspondante, et permettant le déplacement en translation de l'axe 9 de la brosse circulaire 3, dans un plan horizontal, suivant une direction perpendiculaire aux axes du peigne circulaire 2 et du doffer 4 et dans un des deux sens de déplacement 35 ou 36, en fonction du sens de rotation de l'arbre 16 (figure 2).According to another characteristic of the invention, each movable bearing 22 or 22 ′ comprises a bearing 23 or 23 ′ as end support for the axis 9, as well as a nut 24 or 24 ′, cooperating with the screw 20 or 20 ′ of corresponding drive, and allowing the displacement in translation of the axis 9 of the circular brush 3, in a horizontal plane, in a direction perpendicular to the axes of the circular comb 2 and of the doffer 4 and in one of the two directions of displacement 35 or 36, depending on the direction of rotation of the shaft 16 (Figure 2).

Un dispositif mécanique 15 tel que décrit ci-dessus, monté sur un bâti 17, assure un déplacement synchrone des deux paliers mobiles 22 et 22′, et conserve donc le parallélisme entre la brosse circulaire 3, d'une part, et le doffer 4 et le peigne circulaire 2, d'autre part.A mechanical device 15 as described above, mounted on a frame 17, ensures synchronous movement of the two mobile bearings 22 and 22 ′, and therefore retains the parallelism between the circular brush 3, on the one hand, and the doffer 4 and the circular comb 2, on the other hand.

Selon une variante de réalisation de l'invention, non représentée aux dessins annexés, l'actionneur 8 est constitué par le dispositif mécanique 15 et par une roue à rochet entraînée par un cliquet actionné par un vérin, soit à fonctionnement pneumatique, soit à fonctionnement hydraulique. La roue à rochet est alors montée directement sur l'arbre 16 et remplace, dans ce cas, le moteur électrique 13.According to an alternative embodiment of the invention, not shown in the accompanying drawings, the actuator 8 is constituted by the mechanical device 15 and by a ratchet wheel driven by a pawl actuated by a jack, either pneumatically or operationally hydraulic. The ratchet wheel is then mounted directly on the shaft 16 and replaces, in this case, the electric motor 13.

Conformément à la figure 2 des dessins annexés, le dispositif, objet de l'invention, comporte des vérins 25, 25′ pneumatiques ou hydrauliques permettant un ablocage, contrôlé par le dispositif de commande automatique 7, de la brosse circulaire 3 dans sa position de travail.In accordance with FIG. 2 of the appended drawings, the device which is the subject of the invention comprises pneumatic or hydraulic jacks 25, 25 ′ allowing the circular brush 3 to be locked in place in the position controlled by the automatic control device 7. job.

Cet ablocage s'effectue en synchronisme avec les mouvements de déplacement de l'axe 9 de la brosse circulaire 3.This locking takes place in synchronism with the movements of movement of the axis 9 of the circular brush 3.

Selon une autre caractéristique de l'invention, et comme le montre la figure 3 des dessins annexés, le dispositif de commande automatique 7 comporte un asservissement programmable 26, ainsi que des capteurs 27, permettant de régler la périodicité et la valeur du déplacement horizontal de la brosse circulaire 3, de réaliser un ablocage à effort contrôlé de celle-ci et, de fixer, en l'entraînant avec un moteur électrique 28 à vitesse variable, la vitesse de rotation de ladite brosse circulaire 3, en fonction ou indépendamment de sa position.According to another characteristic of the invention, and as shown in FIG. 3 of the accompanying drawings, the automatic control device 7 comprises a programmable servo 26, as well as sensors 27, making it possible to adjust the periodicity and the value of the horizontal displacement of the circular brush 3, to achieve a controlled force clamping thereof and, to fix, by driving it with an electric motor 28 at variable speed, the speed of rotation of said circular brush 3, as a function or independently of its position.

L'entraînement de la brosse circulaire 3 peut également être réalisé au moyen de pignons, de chaînes ou de courroies.The drive of the circular brush 3 can also be carried out by means of sprockets, chains or belts.

Plusieurs modes de déplacement de l'axe 9 de la brosse circulaire 3 sont possibles, à savoir, un déplacement incrémental, dont on peut régler la périodicité et la valeur du pas ou un déplacement continu. En contrôlant la vitesse de rotation de la brosse circulaire 3, à l'aide du moteur électrique 28 à vitesse variable, le dispositif de commande automatique l'adapte en fonction de l'usure des touffes 10, de telle manière que la vitesse linéaire périphérique de la brosse circulaire soit toujours constante, ce qui garantit un nettoyage du peigne circulaire 2 constant en qualité. En outre, des périodes de nettoyage intensif des éléments tournants 2, 3 et 4 peuvent être englobées dans les cycles de fonctionnement de la peigneuse rectiligne. Il suffit pour cela de faire varier notablement la vitesse de rotation de la brosse circulaire 3 par rapport aux vitesses de rotation du peigne circulaire 2 et du doffer 4.Several modes of movement of the axis 9 of the circular brush 3 are possible, namely, a incremental displacement, whose periodicity and step value can be adjusted or a continuous displacement. By controlling the speed of rotation of the circular brush 3, using the variable speed electric motor 28, the automatic control device adapts it according to the wear of the tufts 10, so that the peripheral linear speed of the circular brush is always constant, which guarantees a cleaning of the circular comb 2 constant in quality. In addition, periods of intensive cleaning of the rotating elements 2, 3 and 4 can be included in the operating cycles of the straight combing machine. To do this, it suffices to vary the speed of rotation of the circular brush 3 with respect to the speeds of rotation of the circular comb 2 and the doffer 4.

Le dispositif, objet de l'invention, comporte également un dispositif de visualisation 29, permettant de vérifier en permanence la position et l'état de la brosse circulaire 3, ainsi que les données des capteurs 27.The device, object of the invention, also includes a display device 29, making it possible to constantly check the position and the state of the circular brush 3, as well as the data of the sensors 27.

Conformément à la figure 3 des dessins annexés, le dispositif, objet de l'invention, comporte un arrêt automatique de fonctionnement 30 de la peigneuse rectiligne, relié à au moins un contact de fin de course 31, ainsi qu'au moins un dispositif 32 de signalisation d'usure des touffes 10 de la brosse circulaire 3, tel que, par exemple, un voyant lumineux, un avertisseur sonore, etc.In accordance with FIG. 3 of the appended drawings, the device, object of the invention, comprises an automatic stop of operation 30 of the straight combing machine, connected to at least one limit switch 31, as well as at least one device 32 for indicating the wear of the tufts 10 of the circular brush 3, such as, for example, an indicator light, an audible warning, etc.

Le dispositif 32 de signalisation d'usure prévient donc l'utilisateur de la nécessité prochaine d'un changement de la brosse circulaire 3 d'où la possibilité d'une organisation préliminaire de ce changement, et donc un gain de temps en arrêt-machine.The wear signaling device 32 therefore warns the user of the imminent need for a change of the circular brush 3, hence the possibility of a preliminary organization of this change, and therefore a saving of time in machine stop. .

L'arrêt automatique de fonctionnement 30 entre en action lorsque la brosse circulaire 3 est complètement usée, et arrête la peigneuse.The automatic operating stop 30 comes into action when the circular brush 3 is completely worn out, and stops the combing machine.

Selon la figure 3 des dessins annexés, le dispositif, conforme à l'invention, comporte, en outre, des moyens de commande de déplacement manuels 33, utilisables après déconnexion du dispositif de commande automatique 7 à l'aide d'un dispositif de sélection 34 de mode de déplacement manuel ou automatique.According to Figure 3 of the accompanying drawings, the device according to the invention further comprises manual displacement control means 33, usable after disconnection of the automatic control device 7 using a selection device 34 of manual or automatic movement mode.

Ainsi, après déconnexion du dispositif de commande automatique 7, il est possible de commander le déplacement de la brosse circulaire 3 manuellement, au moyen d'un bouton poussoir, par exemple, qui commande l'avance et le retour de la brosse circulaire 3, notamment, lors du remplacement de cette dernière.Thus, after disconnection of the automatic control device 7, it is possible to control the movement of the circular brush 3 manually, by means of a push button, for example, which controls the advance and the return of the circular brush 3, especially when replacing the latter.

Dans la description ci-après, le fonctionnement général de la peigneuse rectiligne et, par la suite, plus particulièrement le fonctionnement du dispositif de compensation automatique de l'usure de la brosse circulaire 3, tel que représenté à la figure 2, vont être expliqués de manière plus détaillée.In the description below, the general operation of the straight combing machine and, subsequently, more particularly the operation of the device for automatically compensating for the wear of the circular brush 3, as shown in FIG. 2, will be explained in more detail.

Sur la peigneuse rectiligne, la nappe de fibres entrantes 6 est peignée, d'une part, par le peigne circulaire 2 et, d'autre part, par le peigne fixe 1. Les fibres courtes ainsi sorties de la nappe de fibres entrantes 6 forment la blousse qui s'agglomère sur le peigne circulaire 2. Ce dernier est déchargé de sa blousse et nettoyé par la brosse circulaire 3. Cette opération de nettoyage du peigne circulaire 2 est réalisée du fait que, ledit peigne circulaire 2 et la brosse circulaire 3 tournant respectivement dans les sens de rotation indiqués à la figure 1, la brosse circulaire 3 tourne plus rapidement que le peigne circulaire 2. Le doffer 4 tournant également dans le sens de rotation indiqué à la figure 1, plus lentement que la brosse circulaire 3, reprend la blousse et en est déchargé à son tour par le peigne détacheur 5 qui, par son mouvement oscillant, fait tomber ladite blousse dans un bac de récupération faisant partie de la peigneuse rectiligne. Le voile 6′, uniquement composé de fibres peignées longues, est alors reformé sur un cuir arracheur, condensé en ruban par un entonnoir et placé dans un pot par des rouleaux. Le ruban peigné, réalisé à partir du voile 6′, constitue le produit sortant de la peigneuse rectiligne.On the straight combing machine, the sheet of incoming fibers 6 is combed, on the one hand, by the circular comb 2 and, on the other hand, by the fixed comb 1. The short fibers thus removed from the sheet of incoming fibers 6 form the blister which agglomerates on the circular comb 2. The latter is discharged from its blister and cleaned by the circular brush 3. This cleaning operation of the circular comb 2 is carried out because, said circular comb 2 and the circular brush 3 rotating respectively in the directions of rotation indicated in FIG. 1, the circular brush 3 rotates faster than the circular comb 2. The doffer 4 also rotating in the direction of rotation indicated in FIG. 1, more slowly than the circular brush 3, resumes the cover and is in turn discharged from it by the detaching comb 5 which, by its oscillating movement, causes said cover to fall into a collecting tank forming part of the rectilinear comber. The veil 6 ′, composed only of long combed fibers, is then reformed on a tear-off leather, condensed into a ribbon by a funnel and placed in a pot by rollers. The combed ribbon, produced from the veil 6 ′, constitutes the product leaving the rectilinear combing machine.

Le dispositif de compensation de l'usure de la brosse circulaire 3 conforme à l'invention et dont un mode de réalisation préféré est représenté à la figure 2, fonctionne de la manière décrite ci-après.The device for compensating for the wear of the circular brush 3 in accordance with the invention and a preferred embodiment of which is shown in FIG. 2, operates in the manner described below.

Le moteur 13 entraîne en rotation l'arbre 16 sur lequel sont montés les pignons d'angle 18 et 18′ qui transmettent la rotation respectivement aux pignons d'angle 19 et 19′ solidaires des vis 20 et 20′ . Ces dernières, tenues en translation par les butées 21 et 21′ déplacent, par leur rotation, les paliers 22 et 22′ qui supportent, par l'intermédiaire des roulements 23 et 23′, l'axe 9 de la brosse circulaire 3. Le déplacement de la brosse circulaire 3 se fait suivant les flèches 35 et 36, à savoir dans le sens de la flèche 35, en marche normale, c'est-à-dire quand il faut compenser l'usure des touffes 10, et dans le sens de la flèche 36 quand il faut dégager la brosse circulaire 3 pour la remplacer. Comme déjà expliqué précédemment, la compensation de l'usure de la brosse circulaire 3 peut se faire en continu ou périodiquement.The motor 13 rotates the shaft 16 on which are mounted the pinions 18 and 18 ′ which transmit the rotation respectively to the pinions 19 and 19 ′ secured to the screws 20 and 20 ′. The latter, held in translation by the stops 21 and 21 'move, by their rotation, the bearings 22 and 22' which support, via the bearings 23 and 23 ', the axis 9 of the circular brush 3. The displacement of the circular brush 3 is done according to arrows 35 and 36, namely in the direction of arrow 35, in normal operation, that is to say when it is necessary to compensate for the wear of the tufts 10, and in the direction of arrow 36 when it is necessary to disengage the circular brush 3 to replace it. As already explained above, the wear compensation of the circular brush 3 can be done continuously or periodically.

Grâce à l'invention, il est, par conséquent, possible de pallier à tous les inconvénients liés à l'usure de la brosse circulaire 3.Thanks to the invention, it is therefore possible to overcome all the drawbacks associated with the wear of the circular brush 3.

En effet, puisque la brosse circulaire 3 se situe toujours dans une position optimale par rapport au peigne circulaire 2, le peigne circulaire 2 est constamment bien débarrassé et nettoyé de la blousse. Or, comme le peigne circulaire 2 est propre en permanence, la maintenance de la peigneuse rectiligne est largement facilitée.In fact, since the circular brush 3 is always in an optimal position relative to with the circular comb 2, the circular comb 2 is constantly well freed and cleaned of the bush. However, as the circular comb 2 is permanently clean, the maintenance of the straight comb is greatly facilitated.

En outre, la propreté constante du peigne circulaire 2 assure une meilleure qualité du travail de la peigneuse rectiligne, cette propreté constante étant due au nettoyage très régulier du peigne circulaire 2. En effet, le peigne circulaire 2 étant nettoyé d'une manière plus efficace, le produit sortant est automatiquement de meilleure qualité.In addition, the constant cleanliness of the circular comb 2 ensures a better quality of work for the rectilinear combing machine, this constant cleanliness being due to the very regular cleaning of the circular comb 2. In fact, the circular comb 2 being cleaned more efficiently , the outgoing product is automatically of better quality.

De plus, par la compensation automatique de l'usure de la brosse circulaire 3, cette dernière a une durée de vie prolongée et est, d'une manière générale, mieux exploitée. En outre, on évite ainsi également de nombreux arrêts de la machine, d'où une contribution sensible à l'élévation du rendement de la peigneuse rectiligne.In addition, by the automatic wear compensation of the circular brush 3, the latter has an extended service life and is, in general, better exploited. In addition, it also avoids many stops of the machine, hence a significant contribution to increasing the performance of the straight combing machine.

Bien entendu, l'invention n'est pas limitée aux modes de réalisation décrits et représentés aux dessins annexés. Des modifications restent possibles, notamment du point de vue de la constitution des divers éléments, ou par substitution d'équivalents techniques, sans sortir pour autant du domaine de protection de l'invention.Of course, the invention is not limited to the embodiments described and shown in the accompanying drawings. Modifications remain possible, in particular from the point of view of the constitution of the various elements, or by substitution of technical equivalents, without thereby departing from the scope of protection of the invention.

Claims (10)

  1. A device for compensating for the wear of the circular brush of a rectilinear comb, characterised in that it is automatic and in that it consists essentially of an automatic control device (7) which monitors the position of the circular brush (3) and controls its movement, by means of at least one actuator (8), in at least one direction perpendicular to its axis (9).
  2. A device according to claim 1, characterised in that the actuator (8) consists of an electric motor (13) which is either reversible or provided with a reduction and reversing gear (14), controlled by the automatic control device (7), and by a mechanical device (15) which converts the rotary movement of the electric motor (13) into a translatory movement of the circular brush (3).
  3. A device according to claim 1, characterised in that the actuator (8) consists of the mechanical device (15) and a ratchet wheel driven by a pawl actuated by a jack.
  4. A device according to claim 2 or 3, characterised in that the mechanical device (15) consists of a shaft (16) rotated by the electric motor (13) or the ratchet wheel, said shaft (16) carrying two bevel gears (18 and 18′) each engaging a corresponding perpendicular bevel gear (19 or 19′) connected to a screw (20 or 20′), the translatory movement of which is limited by a stop (21 or 21′), and each actuating and movable bearing block (22 or 22′).
  5. A device according to claim 4, characterised in that each movable bearing block (22 or 22′) comprises a bearing (23 or 23′) as a support for the end of the shaft (9), and a nut (24 or 24′) co-operating with the corresponding drive screw (20 or 20′) and allowing translatory movement of the shaft (9) of the circular brush (3) in a horizontal plane in a direction perpendicular to the axes of the circular comb (2) and of the doffer (4) and in one of the two directions of movement (35 or 36), depending on the direction of rotation of the shaft (16).
  6. A device according to claim 1, characterised in that it comprises pneumatic or hydraulic jacks (25, 25′) which allow the circular brush (3) to be locked in its working position under the control of the automatic control device (7).
  7. A device according to any one of claims 1, 2 and 6, characterised in that the automatic control device (7) comprises a programmable control system (26) and sensors (27) for regulating the periodicity and the value of the horizontal movement of the circular brush (3), provide locking thereof with controlled force and fix the speed of rotation of the said circular brush (3) in dependence on or independently of its position, by driving it by a variable-speed electric motor (28).
  8. A device according to claim 1, characterised in that it comprises a display device (29) enabling a permanent check to be made of the position and condition of the circular brush (3) and the data from the sensors (27).
  9. A device according to claim 1, characterised in that it comprises an automatic stop motion (30) for the rectilinear comb connected to at least one limit contact (31), and at least one device (32) for signalling the wear of the tufts (10) of the circular brush (3).
  10. A device according to claim 1, characterised in that it also comprises manual movement control means (33) usable after the automatic control device has been disconnected, by means of a manual or automatic movement selector (34).
EP19900440077 1989-09-07 1990-09-05 Apparatus for automatic wear compensation of the combing machine round brush Expired - Lifetime EP0417021B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8911867 1989-09-07
FR8911867A FR2651512B1 (en) 1989-09-07 1989-09-07 DEVICE FOR AUTOMATICALLY COMPENSATING FOR THE WEAR OF THE CIRCULAR BRUSH OF A RECTILINEAR COMB.

Publications (2)

Publication Number Publication Date
EP0417021A1 EP0417021A1 (en) 1991-03-13
EP0417021B1 true EP0417021B1 (en) 1994-07-27

Family

ID=9385333

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900440077 Expired - Lifetime EP0417021B1 (en) 1989-09-07 1990-09-05 Apparatus for automatic wear compensation of the combing machine round brush

Country Status (6)

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EP (1) EP0417021B1 (en)
JP (1) JP2573408B2 (en)
DD (1) DD297672A5 (en)
DE (1) DE69011018T2 (en)
ES (1) ES2060994T3 (en)
FR (1) FR2651512B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103806141A (en) * 2012-11-08 2014-05-21 江苏凯宫机械股份有限公司 Automatic stop mechanism after table-board web twining of cotton spinning combing machine

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2787813B1 (en) * 1998-12-29 2001-03-23 Schlumberger Cie N DEVICE FOR SUPPORTING A SUSPENDED BRUSH ON A RECTILINEAR COMBING MACHINE WITH AUTOMATIC COMPENSATION FOR THE WEAR OF SAID BRUSH
EP1016742B1 (en) * 1998-12-29 2002-03-13 N. SCHLUMBERGER & CIE Mounting apparatus of a cylindrical cleaning brush with automatic wear compensation for a cylindrical comb of a rectilinear comber
FR2791706B1 (en) * 1999-03-30 2001-06-22 Schlumberger Cie N DEVICE FOR GUIDING AND POSITIONING A CYLINDRICAL BRUSH FOR CLEANING THE CYLINDRICAL COMB OF A RECTILINEAR COMBING MACHINE
FR2842833A1 (en) * 2002-07-26 2004-01-30 Schlumberger Cie N DEVICE AND METHOD FOR DRIVING AND CONSULTING THE MARKET PARAMETERS OF TEXTILE MACHINES
JP6135718B2 (en) * 2015-08-04 2017-05-31 株式会社豊田自動織機 Comb
CH715551A1 (en) 2018-11-15 2020-05-15 Rieter Ag Maschf Comber cleaning device and method.

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Publication number Priority date Publication date Assignee Title
DE344124C (en) *
CH391529A (en) * 1961-04-12 1965-04-30 Hattori Ryosuke Fiber combing machine
IT1035138B (en) * 1975-04-01 1979-10-20 Cognetex Spa AUTOMATIC DEVICE FOR CLEANING THE FIBER REMOVAL SPAYYOLA FROM TEXTILE FIBER PROCESSING MACHINES
JPS6030763B2 (en) * 1980-09-19 1985-07-18 株式会社豊田自動織機製作所 Fleece posture control device in coma

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103806141A (en) * 2012-11-08 2014-05-21 江苏凯宫机械股份有限公司 Automatic stop mechanism after table-board web twining of cotton spinning combing machine

Also Published As

Publication number Publication date
ES2060994T3 (en) 1994-12-01
DD297672A5 (en) 1992-01-16
FR2651512A1 (en) 1991-03-08
EP0417021A1 (en) 1991-03-13
JPH03146725A (en) 1991-06-21
DE69011018D1 (en) 1994-09-01
JP2573408B2 (en) 1997-01-22
DE69011018T2 (en) 1995-03-30
FR2651512B1 (en) 1991-11-22

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