EP0428461A1 - Loader for feeding a card with textile fibre vlies of greatest possible evenness - Google Patents

Loader for feeding a card with textile fibre vlies of greatest possible evenness Download PDF

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Publication number
EP0428461A1
EP0428461A1 EP90440097A EP90440097A EP0428461A1 EP 0428461 A1 EP0428461 A1 EP 0428461A1 EP 90440097 A EP90440097 A EP 90440097A EP 90440097 A EP90440097 A EP 90440097A EP 0428461 A1 EP0428461 A1 EP 0428461A1
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EP
European Patent Office
Prior art keywords
apron
hood
cell
spiked
loader
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EP90440097A
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German (de)
French (fr)
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EP0428461B1 (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
    • D01G23/00—Feeding fibres to machines; Conveying fibres between machines
    • D01G23/06—Arrangements in which a machine or apparatus is regulated in response to changes in the volume or weight of fibres fed, e.g. piano motions

Definitions

  • the present invention relates to the field of the treatment of textile fibers, in particular by means of a card known as "for animal, vegetable and chemical fibers", in particular the loader intended to feed it with a sheet of textile fibers as regular as possible.
  • Known loaders of this kind generally receive their fiber reserve pneumatically, by manual loading or by loading well.
  • the reserve rests on a hood apron, is taken up by the spiked apron, is detached from the latter by the detacher and falls into the hopper with adjustable spacing and oscillating wall.
  • the delivery cylinders then place this reserve on the food apron supplying the card.
  • a photoelectric cell controls the level of fibers in the reserve and, as soon as a predetermined fiber height is reached, the cell is obscured, leading to a stop command of the fan bringing the bundles of fibers.
  • the level of fibers in the hood drops below the level of the cell, so that the latter is again released, the fan bringing the fibers is restarted.
  • the thickness of the fiber mat that the spiked apron takes to the hopper is controlled by another cell placed near said spiked apron.
  • the loading of the latter is carried out according to the same principle as that of the hood, that is to say that the thickness of the fiber mat is controlled by the cell which is obscured when said thickness is too large, which results in a loader stop command and, when the thickness of the mattress has returned to normal, the cell is released and commands a restart of the loader.
  • a third cell is placed at the entrance of the hopper and is intended to control the stop or the running of the loader, according to the same principle as that described above, depending on the height of the material in the hopper. .
  • the various control points of the loader control the latter in all or nothing, that is to say by stopping or starting it, which leads to various drawbacks for a card loader.
  • the routing of the material to the carding machine is necessarily discontinuous due to the discontinuous operation of the loader consisting of numerous stops and restarting of the latter, which entails the same drawbacks as described above, that is to say that is to say an outgoing product which is irregular and of poor quality and which generates significant variations in the specific weight of the mass of fibers.
  • the various constituent parts such as the hood apron, the spiked apron, the delivery cylinders and the regulating flywheel are controlled by a single speed motor, so that it lacks flexibility, which also contributes to the irregularity in card feeding.
  • the present invention aims to overcome these drawbacks.
  • a loader for feeding a card with a textile fiber as regular as possible which is essentially constituted by a hood supplied with fiber flakes by a fan, and provided with a fiber level control cell controlling the operation and stopping the fan, by a hood apron extending under the latter, by a spiked apron taking up the fibers brought by the hood apron, by a cell for controlling the thickness of the fiber mattress on the apron to spikes, by a hopper with adjustable spacing and oscillating wall loaded by the spiked apron and provided, at its lower part, with delivery cylinders cooperating with a food apron carrying out the feeding of the carding machine, characterized in that the hood apron is continuously driven at variable speed controlled by the cell for controlling the thickness of the fiber mat on the spiked apron, in that the hood is fitted, in addition re, at its exit, above the hood apron, a haspel for regulating the flow of
  • the figure of the appended drawing represents a loader for feeding a carder 14 with a sheet of textile fibers as regular as possible, which essentially consists of a hood 2 supplied with flakes 1 of fibers by a fan, not shown, and equipped with a fiber level control cell 3 controlling the start and stop of the fan.
  • a hood apron 5 is placed under the latter and brings the fibrous material 4 to a spiked apron 6.
  • the thickness of the fiber mat on the spiked apron 6 is controlled by a cell 7, then said mattress is brought to a hopper 11 with adjustable spacing and an oscillating wall loaded by the spiked apron 6 and provided, at its lower part , of delivery cylinders 12 cooperating with a food apron 13 carrying out the feeding of the card 14.
  • the loader is provided with a hood apron 5, which is driven continuously at variable speed controlled by the cell 7 for controlling the thickness of the fiber mat on the spiked apron 6.
  • the hood 2 is provided at its outlet, above the hood apron 5, with a haspel 8 for regulating the flow of fibers leaving said hood 2 and a regulating flywheel 9 at variable speed cooperates with the apron at tips 6 for regulating the fiber mat taken by the latter.
  • the fiber flakes 1 are brought into the hood 2 by the fan, not shown, and their level in said hood 2 is controlled by the cell 3 which, as long as it is cleared, maintains the operation of the fan and, as soon as it is obscured, commands the latter to stop.
  • the latter performs the control of the loader speed by allowing operation at normal speed when it is cleared and operation at predetermined minimum speed when it is obscured.
  • the position of the cell 7, relative to the spiked apron 6 and to the hood apron 5, is adjustable. So the thickness of the fiber mat on the ta blier with spikes 6 can be adjusted.
  • the fiber mat driven by the spiked apron 6 is further regulated by the haspel 8 and by the regulating flywheel 9.
  • the spiked apron 6 pours the bundles 10 of fibers into the hopper 11 to adjustable and oscillating wall spacing, by cooperation with the detaching cylinder 17, said hopper 11 supplying the card 14 via the delivery cylinders 12 cooperating with the food apron 13.
  • the hopper 11 is provided with two level control cells 15 and 16, arranged vertically apart, and controlling a device for regulating (not shown) the drive speed of the spiked apron 6 , delivery cylinders 12 and regulating flywheel 9, respectively at maximum speed when the fiber level in the hopper 11 is below the lower cell 15, at normal speed when the cell 15 is obscured and when the cell 16 is released and at minimum speed when the two cells are obscured.
  • a continuous level control in the hopper 11 and to maintain this level more or less constant by carrying out either a height adjustment of material, or a level maintenance, or a loss of height of material .
  • the loader according to the invention makes it possible to easily and easily adjust the thickness of the layer of fibers which it must deliver to the carding machine, so that the latter is fed in a regular manner and that the outgoing product is also regular and of good quality.
  • the routing of the fibers to the carding machine takes place continuously, owing to the fact that the loader rotates constantly, that is to say without stopping one of its constituent elements, which also contributes to the consistency and good quality of the outgoing product.
  • the movable members such as the hood apron 5, the spiked apron 6, the delivery cylinders 12 and the regulating flywheel 9 being controlled at variable speed, they have a certain flexibility of operation contributing to the regularity of supply of the card 14.

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

Abstract

The present invention relates to a charger for feeding a carding machine with a nap of textile fibers as regularly as possible, characterized in that the receptacle apron (5) is continuously driven at variable speed controlled by the cell (7 ) for control of the thickness of the fiber mat (4) on the spiked apron (6), in that the receptacle (2) is also provided at its outlet, above the receptacle apron (5), with a screed (8) for regulation of the flow of fibers and in that a regulator drum (9) of variable speed coacts with the spiked apron (6) for the regulation of the mat of fibers carried thereon.

Description

La présente invention concerne le domaine du traitement des fibres textiles, notamment au moyen d'une carde dite "pour fibres animales, végétales et chimi­ques", en particulier la chargeuse destinée à l'alimen­ter par une nappe de fibres textiles la plus régulière possible.The present invention relates to the field of the treatment of textile fibers, in particular by means of a card known as "for animal, vegetable and chemical fibers", in particular the loader intended to feed it with a sheet of textile fibers as regular as possible.

Les chargeuses connues de ce genre reçoivent généralement leur réserve de fibres par voie pneumati­que, par chargement manuel ou par puits de chargement. La réserve repose sur un tablier de hotte, est prise par le tablier à pointes, est détachée de ce dernier par le détacheur et tombe dans la trémie à écartement réglable et à paroi oscillante. Des cylindres délivreurs posent alors cette réserve sur le tablier alimentaire alimen­tant la carde.Known loaders of this kind generally receive their fiber reserve pneumatically, by manual loading or by loading well. The reserve rests on a hood apron, is taken up by the spiked apron, is detached from the latter by the detacher and falls into the hopper with adjustable spacing and oscillating wall. The delivery cylinders then place this reserve on the food apron supplying the card.

Actuellement, la commande de tous ces organes s'effectue de la manière suivante : une cellule photo­électrique contrôle le niveau des fibres dans la réserve et, dès qu'une hauteur de fibres prédéterminée est at­teinte, la cellule est occultée entraînant une commande d'arrêt du ventilateur amenant les paquets de fibres. Lorsque le niveau des fibres dans la hotte baisse jusqu'en-dessous du niveau de la cellule, de sorte que cette dernière est à nouveau dégagée, le ventilateur amenant les fibres est remis en marche. L'épaisseur du matelas de fibres que le tablier à pointes emmène vers la trémie est contrôlée par une autre cellule placée à proximité dudit tablier à pointes.Currently, the control of all these organs is carried out as follows: a photoelectric cell controls the level of fibers in the reserve and, as soon as a predetermined fiber height is reached, the cell is obscured, leading to a stop command of the fan bringing the bundles of fibers. When the level of fibers in the hood drops below the level of the cell, so that the latter is again released, the fan bringing the fibers is restarted. The thickness of the fiber mat that the spiked apron takes to the hopper is controlled by another cell placed near said spiked apron.

Le chargement de ce dernier est effectué selon le même principe que celui de la hotte, c'est-à-dire que l'épaisseur du matelas de fibres est contrôlée par la cellule qui est occultée lorsque ladite épaisseur est trop grande, ce qui entraîne une commande d'arrêt de la chargeuse et, lorsque l'épaisseur du matelas est redeve­nue normale, la cellule est dégagée et commande une re­mise en marche de la chargeuse.The loading of the latter is carried out according to the same principle as that of the hood, that is to say that the thickness of the fiber mat is controlled by the cell which is obscured when said thickness is too large, which results in a loader stop command and, when the thickness of the mattress has returned to normal, the cell is released and commands a restart of the loader.

Une troisième cellule est placée à l'entrée de la trémie et est destinée à commander l'arrêt ou la mar­che de la chargeuse, selon le même principe que celui décrit plus haut, en fonction de la hauteur de la matiè­re se trouvant dans la trémie.A third cell is placed at the entrance of the hopper and is intended to control the stop or the running of the loader, according to the same principle as that described above, depending on the height of the material in the hopper. .

Les différents points de contrôle de la char­geuse commandent cette dernière en tout ou rien, c'est-­à-dire en l'arrêtant ou en la mettant en marche, ce qui entraîne divers inconvénients pour une chargeuse de car­de.The various control points of the loader control the latter in all or nothing, that is to say by stopping or starting it, which leads to various drawbacks for a card loader.

En effet, le réglage de l'épaisseur de la cou­che de matière que la chargeuse doit livrer à la carde est difficile à réaliser, de sorte que cette dernière est alimentée d'une manière irrégulière et que le pro­duit sortant en résultant est également irrégulier, d'une qualité discutable et qui engendre des variations importantes du poids spécifique de la masse de fibres.Indeed, the adjustment of the thickness of the layer of material that the loader must deliver to the card is difficult to achieve, so that the latter is fed in an irregular manner and that the resulting outgoing product is also irregular, of questionable quality and which generates significant variations in the specific weight of the mass of fibers.

En outre, l'acheminement de la matière vers la carde est forcément discontinu du fait du fonctionnement discontinu de la chargeuse consistant en de nombreux ar­rêts et remises en route de cette dernière, ce qui en­traîne les mêmes inconvénients que décrits précédemment, c'est-à-dire un produit sortant irrégulier et de mauvai­se qualité et qui engendre des variations importantes du poids spécifique de la masse de fibres.In addition, the routing of the material to the carding machine is necessarily discontinuous due to the discontinuous operation of the loader consisting of numerous stops and restarting of the latter, which entails the same drawbacks as described above, that is to say that is to say an outgoing product which is irregular and of poor quality and which generates significant variations in the specific weight of the mass of fibers.

Enfin, les différents organes constitutifs, tels que le tablier de hotte, le tablier à pointes, les cylindres délivreurs et le volant régulateur sont com­mandés par un moteur à vitesse unique, de sorte qu'il manque de souplesse, ce qui contribue également à l'ir­régularité d'alimentation de la carde.Finally, the various constituent parts, such as the hood apron, the spiked apron, the delivery cylinders and the regulating flywheel are controlled by a single speed motor, so that it lacks flexibility, which also contributes to the irregularity in card feeding.

La présente invention a pour but de pallier ces inconvénients.The present invention aims to overcome these drawbacks.

Elle a, en effet, pour objet une chargeuse pour l'alimentation d'une carde par une nappe de fibres tex­tiles la plus régulière possible, qui est essentielle­ment constituée par une hotte alimentée en flocons de fibres par un ventilateur, et munie d'une cellule de contrôle du niveau des fibres commandant la marche et l'arrêt du ventilateur, par un tablier de hotte s'éten­dant sous cette dernière, par un tàblier à pointes re­prenant les fibres amenées par le tablier de hotte, par une cellule de contrôle de l'épaisseur du matelas de fi­bres sur le tablier à pointes, par une trémie à écarte­ment réglable et à paroi oscillante chargée par lé ta­blier à pointes et munie, à sa partie inférieure, de cylindres délivreurs coopérant avec un tablier alimen­taire réalisant l'alimentation de la carde, caractérisée en ce que le tablier de hotte est entraîné en continu à vitesse variable commandée par la cellule de contrôle de l'épaisseur du matelas de fibres sur le tablier à poin­tes, en ce que la hotte est munie, en outre, à sa sor­tie, audessus du tablier de hotte, d'une haspel de régu­lation du flux de fibres et en ce qulun volant régula­teur à vitesse variable coopère avec le tablier à poin­tes pour la régulation du matelas de fibres pris par ce dernier.Its purpose, in fact, is a loader for feeding a card with a textile fiber as regular as possible, which is essentially constituted by a hood supplied with fiber flakes by a fan, and provided with a fiber level control cell controlling the operation and stopping the fan, by a hood apron extending under the latter, by a spiked apron taking up the fibers brought by the hood apron, by a cell for controlling the thickness of the fiber mattress on the apron to spikes, by a hopper with adjustable spacing and oscillating wall loaded by the spiked apron and provided, at its lower part, with delivery cylinders cooperating with a food apron carrying out the feeding of the carding machine, characterized in that the hood apron is continuously driven at variable speed controlled by the cell for controlling the thickness of the fiber mat on the spiked apron, in that the hood is fitted, in addition re, at its exit, above the hood apron, a haspel for regulating the flow of fibers and in that a variable speed regulating flywheel cooperates with the apron with spikes for regulating the fiber mattress taken by the latter.

L'invention sera mieux comprise grâce à la des­cription ci-après, qui se rapporte à un mode de réalisa­tion préféré, donné à titre d'exemple non limitatif, et expliqué avec référence au dessin schématique annexé, dont la figure unique est une vue en coupe de la char­geuse conforme à l'invention.The invention will be better understood from the description below, which relates to a preferred embodiment, given by way of nonlimiting example, and explained with reference to the appended schematic drawing, the single figure of which is a view in section of the loader according to the invention.

La figure du dessin annexé représente une chargeuse pour l'alimentation d'une cardè 14 par une nappe de fibres textiles la plus régulière possible, qui est essentiellement constituée par une hotte 2 alimentée en flocons 1 de fibres par un ventilateur, non représen­té, et munie d'une cellule 3 de contrôle du niveau des fibres commandant la marche et l'arrêt du ventilateur. Un tablier de hotte 5 est disposé sous cette dernière et amène la matière fibreuse 4 à un tablier à pointes 6. L'épaisseur du matelas de fibres sur le tablier à poin­tes 6 est contrôlée par une cellule 7, puis ledit mate­las est amené à une trémie 11 à écartement réglable et à paroi oscillante chargée par le tablier à pointes 6 et munie, à sa partie inférieure, de cylindres délivreurs 12 coopérant avec un tablier alimentaire 13 réalisant l'alimentation de la carde 14.The figure of the appended drawing represents a loader for feeding a carder 14 with a sheet of textile fibers as regular as possible, which essentially consists of a hood 2 supplied with flakes 1 of fibers by a fan, not shown, and equipped with a fiber level control cell 3 controlling the start and stop of the fan. A hood apron 5 is placed under the latter and brings the fibrous material 4 to a spiked apron 6. The thickness of the fiber mat on the spiked apron 6 is controlled by a cell 7, then said mattress is brought to a hopper 11 with adjustable spacing and an oscillating wall loaded by the spiked apron 6 and provided, at its lower part , of delivery cylinders 12 cooperating with a food apron 13 carrying out the feeding of the card 14.

Conformément à l'invention, la chargeuse est pourvue d'un tablier de hotte 5, qui est entraîné en continu à vitesse variable commandée par la cellule 7 de contrôle de l'épaisseur du matelas de fibres sur le ta­blier à pointes 6.According to the invention, the loader is provided with a hood apron 5, which is driven continuously at variable speed controlled by the cell 7 for controlling the thickness of the fiber mat on the spiked apron 6.

En outre, la hotte 2 est munie à sa sortie, au-­dessus du tablier de hotte 5, d'une haspel 8 de régula­tion du flux de fibres sortant de ladite hotte 2 et un volant régulateur 9 à vitesse variable coopère avec le tablier à pointes 6 pour la régulation du matelas de fi­bres pris par ce dernier.In addition, the hood 2 is provided at its outlet, above the hood apron 5, with a haspel 8 for regulating the flow of fibers leaving said hood 2 and a regulating flywheel 9 at variable speed cooperates with the apron at tips 6 for regulating the fiber mat taken by the latter.

Les flocons 1 de fibres sont amenés dans la hotte 2 par le ventilateur, non représenté, et leur ni­veau dans ladite hotte 2 est contrôlé par la cellule 3 qui, tant qulelle est dégagée, maintient le fonctionne­ment du ventilateur et, dès qulelle est occultée, com­mande l'arrêt de ce dernier.The fiber flakes 1 are brought into the hood 2 by the fan, not shown, and their level in said hood 2 is controlled by the cell 3 which, as long as it is cleared, maintains the operation of the fan and, as soon as it is obscured, commands the latter to stop.

La matière fibreuse 4, qui repose sur le ta­blier de hotte 5, est amenée par ce dernier au tablier à pointes 6 et l'épaisseur du matelas de fibres 4 sur le­dit tablier à pointes 6 est contrôlée par la cellule 7. Cette dernière réalise la commande de la vitesse de la chargeuse en permettant un fonctionnement à vitesse nor­male lorsqu'elle est dégagée et un fonctionnemant à vi­tesse minimale prédéterminée lorsqu'elle est occultée.The fibrous material 4, which rests on the hood apron 5, is brought by the latter to the spiked apron 6 and the thickness of the fiber mat 4 on said spiked apron 6 is controlled by the cell 7. The latter performs the control of the loader speed by allowing operation at normal speed when it is cleared and operation at predetermined minimum speed when it is obscured.

Un tel fonctionnement à vitesse minimale a pour effet de ralentir le chargement du tablier à pointes 6.Such operation at minimum speed has the effect of slowing down the loading of the spiked apron 6.

Conformément à une caractéristique de l'inven­tion, la position de la cellule 7, par rapport au ta­blier à pointes 6 et au tablier de hotte 5, est régla­ble. Ainsi, l'épaisseur du matelas de fibres sur le ta­ blier à pointes 6 peut être réglée.According to a characteristic of the invention, the position of the cell 7, relative to the spiked apron 6 and to the hood apron 5, is adjustable. So the thickness of the fiber mat on the ta blier with spikes 6 can be adjusted.

Le matelas de fibres entraîné par le tablier à pointes 6 est régulé, en outre, par l'haspel 8 et par le volant régulateur 9. A son extrémité supérieure, le ta­blier à pointes 6 déverse les paquets 10 de fibres dans la trémie 11 à écartement réglable et à paroi oscillan­te, par coopération avec le cylindre détacheur 17, ladi­te trémie 11 alimentant la carde 14 par l'intermédiaire des cylindres délivreurs 12 coopérant avec le tablier alimentaire 13.The fiber mat driven by the spiked apron 6 is further regulated by the haspel 8 and by the regulating flywheel 9. At its upper end, the spiked apron 6 pours the bundles 10 of fibers into the hopper 11 to adjustable and oscillating wall spacing, by cooperation with the detaching cylinder 17, said hopper 11 supplying the card 14 via the delivery cylinders 12 cooperating with the food apron 13.

Selon une caractéristique de l'invention, la trémie 11 est munie de deux cellules 15 et 16 de contrô­le de niveau, disposées à écartement vertical, et com­mandant un dispositif de régulation (non représenté) de la vitesse d'entraînement du tablier à pointes 6, des cylindres délivreurs 12 et du volant régulateur 9, res­pectivement à vitesse maximale lorsque le niveau de fi­bres dans la trémie 11 est en-dessous de la cellule in­férieure 15, à vitesse normale lorsque la cellule 15 est occultée et lorsque la cellule 16 est dégagée et à vi­tesse minimale lorsque les deux cellules sont occultées. Ainsi, il est possible d'opérer un contrôle continu de niveau dans la trémie 11 et de maintenir ce niveau à peu près constant en réalisant, soit un rattrapage de hau­teur de matière, soit un maintien de niveau, soit une perte de hauteur de matière.According to a characteristic of the invention, the hopper 11 is provided with two level control cells 15 and 16, arranged vertically apart, and controlling a device for regulating (not shown) the drive speed of the spiked apron 6 , delivery cylinders 12 and regulating flywheel 9, respectively at maximum speed when the fiber level in the hopper 11 is below the lower cell 15, at normal speed when the cell 15 is obscured and when the cell 16 is released and at minimum speed when the two cells are obscured. Thus, it is possible to operate a continuous level control in the hopper 11 and to maintain this level more or less constant by carrying out either a height adjustment of material, or a level maintenance, or a loss of height of material .

La chargeuse conforme à l'invention permet de réaliser, facilement et aisément, un réglage de l'épais­seur de la couche de fibres qu'elle doit livrer à la carde, de sorte que cette dernière est alimentée d'une manière régulière et que le produit sortant est égale­ment régulier et d'une bonne qualité.The loader according to the invention makes it possible to easily and easily adjust the thickness of the layer of fibers which it must deliver to the carding machine, so that the latter is fed in a regular manner and that the outgoing product is also regular and of good quality.

En outre, l'acheminement des fibres vers la carde s'effectue de manière continue, du fait que la chargeuse tourne constamment, c'est-à-dire sans arrêt de l'un de ses éléments constitutifs, ce qui contribue éga­lement à la régularité et à la bonne qualité du produit sortant.In addition, the routing of the fibers to the carding machine takes place continuously, owing to the fact that the loader rotates constantly, that is to say without stopping one of its constituent elements, which also contributes to the consistency and good quality of the outgoing product.

Enfin, les organes mobiles tels que le tablier de hotte 5, le tablier à pointes 6, les cylindres déli­vreurs 12 et le volant régulateur 9 étant commandés à vitesse variable, ils présentent une certaine souplesse de fonctionnement contribuant à la régularité d'alimen­tation de la carde 14.Finally, the movable members such as the hood apron 5, the spiked apron 6, the delivery cylinders 12 and the regulating flywheel 9 being controlled at variable speed, they have a certain flexibility of operation contributing to the regularity of supply of the card 14.

Grâce à l'invention, il est possible de réali­ser une chargeuse fonctionnant en continu à vitesse va­riable pour réguler au mieux la matière fibreuse alimen­tant la carde.Thanks to the invention, it is possible to produce a loader operating continuously at variable speed in order to best regulate the fibrous material supplying the card.

Bien entendu, l'invention n'est pas limitée au mode de réalisation décrit et représenté au dessin an­nexé. 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 embodiment described and shown in the accompanying drawing. 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 (3)

1. Chargeuse pour l'alimentation d'une carde par une nappe de fibres textiles la plus régulière pos­sible) qui est essentiellement constituée par une hotte (2) alimentée en flocons de fibres (1) par un ventila­teur, et munie d'une cellule (3) de contrôle du niveau des fibres commandant la marche et l'arrêt du ventila­teur, par un tablier de hotte (5) s'étendant sous cette dernière, par un tablier à pointes (6) reprenant les fi­bres amenées par le tablier de hotte (5), par une cellu­le (7) de contrôle de l'épaisseur du matelas de fibres (4) sur le tablier à pointes (6), par une trémie (11) à écartement réglable et à paroi oscillante chargée par le tablier à pointes (6) et munie, à sa partie inférieure, de cylindres délivreurs (12) coopérant avec un tablier alimentaire (13) réalisant l'alimentation de la carde (14), caractérisée en ce que le tablier de hotte (5) est entraîné en continu à vitesse variable commandée par la cellule (7) de contrôle de l'épaisseur du matelas de fi­bres (4) sur le tablier à pointes (6) ) en ce que la hot­te (2) est munie, en outre, à sa sortie, au-dessus du tablier de hotte (5), d'une haspel (8) de régulation du flux de fibres et en ce qu'un volant régulateur (9) à vitesse variable coopère avec le tablier à pointes (6) pour la régulation du matelas de fibres pris par ce der­nier.1. Loader for feeding a card with a sheet of textile fibers as regular as possible) which is essentially constituted by a hood (2) supplied with fiber flakes (1) by a fan, and provided with a cell (3) controlling the level of the fibers controlling the start and stop of the fan, by a hood apron (5) extending under the latter, by a spiked apron (6) taking up the fibers brought by the apron of hood (5), by a cell (7) for controlling the thickness of the fiber mat (4) on the spiked apron (6), by a hopper (11) with adjustable spacing and an oscillating wall loaded by the apron spiked (6) and provided, at its lower part, with delivery cylinders (12) cooperating with a food apron (13) carrying out the feeding of the card (14), characterized in that the hood apron (5) is continuously driven at variable speed controlled by the control cell (7) thickness of the fiber mat (4) on the spiked apron (6) in that the hood (2) is provided, in addition, at its outlet, above the hood apron (5), with a haspel (8) for regulating the flow of fibers and in that a variable-speed regulating flywheel (9) cooperates with the spiked apron (6) for regulating the fiber mat taken by the latter. 2. Chargeuse) suivant la revendication 1, ca­ractérisée en ce que la position de la cellule (7), par rapport au tablier à pointes (6) et au tàblier de hotte (5), est réglable.2. Loader) according to claim 1, characterized in that the position of the cell (7), relative to the spiked apron (6) and to the hood panel (5), is adjustable. 3. Chargeuse) suivant la revendication 1, ca­ractérisée en ce que la trémie (11) est munie de deux cellules (15 et 16) de contrôle de niveau, disposées à écartement vertical, et commandant un dispositif de re­gulation de la vitesse d'entraînement du tablier à pointes (6), des cylindres délivreurs (12) et du volant régulateur (9), respectivement à vitesse maximale lors­que le niveau de fibres dans la trémie (11) est en­dessous de la cellule inférieure (15), à vitesse normale lorsque la cellule inférieure (15) est occultée et lors­que la cellule supérieure (16) est dégagée et à vitesse minimale lorsque les deux cellules sont occultées.3. Loader) according to claim 1, characterized in that the hopper (11) is provided with two level control cells (15 and 16), arranged vertically apart, and controlling a device for regulating the drive speed. spiked apron (6), delivery cylinders (12) and flywheel regulator (9), respectively at maximum speed when the fiber level in the hopper (11) is below the lower cell (15), at normal speed when the lower cell (15) is obscured and when the upper cell (16) is cleared and at minimum speed when the two cells are obscured.
EP90440097A 1989-11-13 1990-11-12 Loader for feeding a card with textile fibre vlies of greatest possible evenness Expired - Lifetime EP0428461B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8915020A FR2654441B1 (en) 1989-11-13 1989-11-13 LOADER FOR THE FEEDING OF A CARD BY THE MOST REGULAR TEXTILE FIBER SHEET POSSIBLE.
FR8915020 1989-11-13

Publications (2)

Publication Number Publication Date
EP0428461A1 true EP0428461A1 (en) 1991-05-22
EP0428461B1 EP0428461B1 (en) 1994-10-19

Family

ID=9387446

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EP90440097A Expired - Lifetime EP0428461B1 (en) 1989-11-13 1990-11-12 Loader for feeding a card with textile fibre vlies of greatest possible evenness

Country Status (6)

Country Link
US (1) US5157809A (en)
EP (1) EP0428461B1 (en)
JP (1) JP2564033B2 (en)
AT (1) ATE113081T1 (en)
DE (1) DE69013465T2 (en)
FR (1) FR2654441B1 (en)

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FR2733769A1 (en) * 1995-05-02 1996-11-08 Dumortier Peignage Fibre feed appts. for carding station giving consistent fibre delivery
FR2733768A1 (en) * 1995-05-02 1996-11-08 Dumortier Peignage Appts. for delivery of homogeneous mixed fibres

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US6317932B1 (en) 1998-05-28 2001-11-20 E. I. Du Pont De Nemours And Company Inlet design for handling bulk textile fiber
DE102004060403A1 (en) * 2004-12-14 2006-07-06 Trützschler GmbH & Co KG Device in the spinning preparation for feeding a plurality of filling shafts, in particular mixers, with fiber material
EP1887113A1 (en) * 2006-08-10 2008-02-13 Oskar Dilo Maschinenfabrik KG Method and device for feeding a fibrous web to a processing machine

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Also Published As

Publication number Publication date
EP0428461B1 (en) 1994-10-19
JPH03269119A (en) 1991-11-29
FR2654441A1 (en) 1991-05-17
JP2564033B2 (en) 1996-12-18
DE69013465T2 (en) 1995-04-20
ATE113081T1 (en) 1994-11-15
US5157809A (en) 1992-10-27
DE69013465D1 (en) 1994-11-24
FR2654441B1 (en) 1992-06-05

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