EP3473753B1 - Carding device comprising a device for cleaning doffer - Google Patents

Carding device comprising a device for cleaning doffer Download PDF

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Publication number
EP3473753B1
EP3473753B1 EP18201623.8A EP18201623A EP3473753B1 EP 3473753 B1 EP3473753 B1 EP 3473753B1 EP 18201623 A EP18201623 A EP 18201623A EP 3473753 B1 EP3473753 B1 EP 3473753B1
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EP
European Patent Office
Prior art keywords
cylinder
main drum
dust collection
cleaning
doffer
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EP18201623.8A
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German (de)
French (fr)
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EP3473753A1 (en
Inventor
Karim Behlouli
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Eco-Technilin Sas
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Eco-Technilin 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
    • D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • D01G15/76—Stripping or cleaning carding surfaces; Maintaining cleanliness of carding area
    • D01G15/80—Arrangements for stripping cylinders or rollers

Definitions

  • the present invention relates to the field of carding, and relates in particular to a carding device comprising a comb cleaning device.
  • the carding machines provide a non-woven web from which impurities (such as short fibers and dust) are removed.
  • a conventional carding machine has a main drum with a spiked coating for the actual carding operation and supplied with raw fibers through a feed cylinder, and a comber which is a cylinder positioned against the main drum and configured to collect the fibers worked on the main drum to create a non-woven web.
  • Delicate fibers such as natural fibers and glass fibers tend to break and release dust and impurities during the carding process. This dust and these impurities get to the bottom of the linings of the various cylinders of the carding machine, which is particularly penalizing as regards the lining of the comb.
  • the comb which is the cylinder which allows the creation of the veil, is the essential element concerning the quality of the product.
  • the lining of the comb becomes clogged, in particular with dust and / or impurities, in the context of carding delicate fibers, the web produced is inhomogeneous and has holes. It is then necessary to stop the production line to clean the comb.
  • the present invention aims to resolve the drawbacks of the prior state of the art, by proposing a carding device comprising a comb cleaning device, said comb cleaning device allowing automatic and permanent cleaning of the comb of the carding device, which makes it possible to create a higher quality veil, and which allows an increase in production with fewer line stoppages due to cleaning.
  • the present invention therefore relates to a carding device, comprising a main drum and a comber with an axis parallel to that of the main drum and positioned against the main drum and downstream of the main drum in the direction of flow of the fibers, the direction of rotation of the comb being opposed to that of the main drum, characterized in that the carding device further comprises a comb cleaning device comprising a dust collecting cylinder with an axis parallel to that of the main drum and positioned against the comb and a cleaning cylinder with an axis parallel to that of the main drum and positioned both against the dust collecting cylinder and against the main drum, the direction of rotation of the dust collecting cylinder being the same as that of the comb, and the direction of rotation of the cleaning cylinder being identical to that of the dust collection cylinder.
  • a comb cleaning device comprising a dust collecting cylinder with an axis parallel to that of the main drum and positioned against the comb and a cleaning cylinder with an axis parallel to that of the main drum and positioned both against the
  • the transfer of dust and impurities between the dust collection cylinder and the cleaning cylinder is effected by a set of angles on the linings of these cylinders.
  • the comb cleaning device allows an automatic and permanent cleaning of the comb of the carding device, which creates a high-quality, homogeneous, hole-free web.
  • the dust collection cylinder is configured to collect the dust present at the bottom of the comber liner, and the cleaning cylinder is configured to automatically and gradually collect the dust on the dust collection cylinder to then return it to the main drum.
  • the dust and impurities contained in the bottom of the comb lining are carried away by the dust recovery cylinder then by the cleaning cylinder which allows constant cleaning of the dust recovery cylinder, the main drum finally taking up this dust and impurities.
  • the carding device could also include a food cylinder placed against the main drum upstream of the latter in the direction of circulation of the fibers, without departing from the scope of the present invention.
  • the axes of the various cylinders of the carding device are driven in rotation by any suitable device, for example one or more motors driving a set of belts.
  • the directions of rotation of the various cylinders of the carding device allow the automatic passage of dust from the comb to the main drum.
  • the dust recovery cylinder and the cleaning cylinder are arranged above the duster.
  • the dust collection cylinder has a flexible or rigid lining, preferably flexible.
  • the main drum, the comb and the cleaning cylinder each have a rigid lining.
  • the cleaning cylinder may also have a soft lining.
  • the lining of each of the main drum and of the cleaning cylinder has teeth inclined in the direction of rotation of the associated element
  • the lining of each of the dust collection cylinder and of the comb has teeth inclined in the direction opposite to the direction of rotation of the associated element
  • the teeth of the lining of the dust collection cylinder are longer than the teeth of the comb lining, to at least penetrate the top of the teeth of the comb lining in order to clean the latter.
  • the teeth of the lining of the cleaning cylinder are longer than the teeth of the lining of the dust collection cylinder, to at least penetrate the top of the teeth of the lining of the dust collection cylinder in order to clean the latter.
  • the teeth of the linings of the main drum are inclined in the direction of flow of the fibers.
  • the carding device further comprises a detacher cylinder positioned against the comb and downstream of the comb in the direction of flow of the fibers.
  • the peeler cylinder is configured to peel the web of nonwoven from the comber.
  • the diameter of the comb is smaller than that of the main drum.
  • the diameter of the dust collection cylinder is smaller than that of the comb.
  • the diameter of the cleaning cylinder is smaller than that of the dust collection cylinder.
  • the diameter of the main drum can be between 1200 and 1500 mm
  • the diameter of the comber can be between 500 and 700 mm
  • the diameter of the dust collection cylinder can be between 200 and 350 mm
  • the diameter of the cleaning cylinder can be between 100 and 200 m.
  • the speed of rotation of the cleaning cylinder is greater than that of the dust collection cylinder and less than that of the main drum.
  • the higher speed of the cleaning cylinder compared to the dust collection cylinder allows more dust to be collected on the dust collection cylinder.
  • the speed of the cleaning cylinder is never greater than that of the main drum to allow dust collection by the main drum.
  • the speed of rotation of the main drum can be between 750 and 1100 rev / min
  • the speed of rotation of the comb can be between 20 and 250 rev / min
  • the speed of rotation of the cylinder of dust recovery can be between 50 and 300 rev / min
  • the rotation speed of the cleaning cylinder can be between 50 and 400 rev / min
  • the rotational speed of the stripper cylinder can be between 50 and 400 rev / min .
  • the subject of the invention is also a carding machine, characterized in that it comprises a carding device as defined above, the main drum of which is fed by a food cylinder.
  • FIG. 1 is a schematic side view of a carding device according to the present invention.
  • the carding device 1 comprises a main drum 2 and a comber 3 with an axis parallel to that of the main drum 2 and positioned against the main drum 2 and downstream of the main drum 2 in the direction of fiber circulation, the direction of rotation of the comber 3 being opposite to that of the main drum 2.
  • the diameter of the comb 3 is smaller than that of the main drum 2.
  • the direction of circulation of the fibers corresponds to the direction in which the fibers circulate in the carding device 1, raw fibers being fed to the main drum 2 and a web of nonwoven coming out of the comber 3.
  • the carding device 1 could also include a food cylinder placed against the main drum 2 and upstream of the latter in the direction of circulation of the fibers, without departing from the scope of the present invention.
  • the carding device 1 further comprises a comb cleaning device 4 arranged above the comb 3 and allowing an automatic and permanent cleaning of the comb 3, which makes it possible to create a uniform high quality veil without holes.
  • the cleaning device of the comber 4 comprises a dust collecting cylinder 5 with an axis parallel to that of the main drum 2 and positioned against the comber 3 and a cleaning cylinder 6 with an axis parallel to that of the main drum 2 and positioned at the bottom. both against the dust collection cylinder 5 and against the main drum 2, the direction of rotation of the dust collection cylinder 5 being identical to that of the comb 3, and the direction of rotation of the cleaning cylinder 6 being identical to that of the cylinder dust collection 5.
  • the diameter of the dust collection cylinder 5 is smaller than that of the comber 3, and the diameter of the cleaning cylinder 6 is smaller than that of the dust collection cylinder 5.
  • Arrows 2a, 3a, 5a and 6a respectively represent the direction of rotation of the main drum 2, of the comber 3, of the dust collecting cylinder 5 and of the cleaning cylinder 6.
  • the dust recovery cylinder 5 is configured to recover the dust and impurities present at the bottom of the combing pad 3, and the cleaning cylinder 6 is configured to automatically and gradually recover the dust present on the recovery cylinder. dust 5 and then return them to the main drum 2.
  • the dust and impurities contained in the bottom of the combing pad 3 are carried away by the dust recovery cylinder 5 then by the cleaning cylinder 6 which allows constant cleaning of the dust recovery cylinder 5, the main drum 2 taking up finally these dust and impurities, the directions of rotation of the various cylinders of the carding device 1 allowing the automatic passage of the dust from the comb 3 to the main drum 2.
  • the axes of the various cylinders of the carding device 1 are driven in rotation by one or more motors, directly or via one or more belts and / or one or more gears or by any system. appropriate training (not shown in Figure 1 so as not to overload the drawing).
  • the dust collection cylinder 5 has a flexible or rigid lining for collecting dust and impurities at the bottom of the lining of the comber 3.
  • the main drum 2, the comber 3 and the cleaning cylinder 6 for their part have only a rigid lining.
  • the lining of the main drum 2 and of the cleaning cylinder 6 has teeth, respectively 2b and 6b, inclined in the direction of rotation of the associated cylinder.
  • the lining of each of the dust collecting cylinder 5 and of the comb 3 has teeth, respectively 5b and 3b, inclined in the direction opposite to the direction of rotation of the associated cylinder.
  • the teeth 2b of the lining of the main drum 2 are thus inclined in the direction of circulation of the fibers, while the teeth 6b of the linings of the dust collecting cylinder 5 and of the cleaning cylinder 6 are inclined in the direction of circulation of the dust.
  • the rotation speed of the cleaning cylinder 6 is higher than that of the dust collecting cylinder 5, in order to collect more dust on the dust collecting cylinder 5, and is lower than that of the main drum 2, in order to allow the dust collection by the main drum 2.
  • the carding device 1 further comprises a detaching cylinder 7 positioned against the comb 3 and downstream of the comb 3 in the direction of fiber flow, said detaching cylinder 7 being configured to detach the web of nonwoven from the comb 3. .

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

Description

La présente invention concerne le domaine du cardage, et porte en particulier sur un dispositif de cardage comprenant un dispositif de nettoyage de peigneur.The present invention relates to the field of carding, and relates in particular to a carding device comprising a comb cleaning device.

Alimentées en fibres brutes, les machines de cardage fournissent un voile non-tissé dont les impuretés (telles que les fibres courtes et les poussières) sont éliminées.Fed with raw fibers, the carding machines provide a non-woven web from which impurities (such as short fibers and dust) are removed.

Une machine de cardage classique comporte un tambour principal doté d'un revêtement hérissé de pointes pour l'opération de cardage proprement dite et alimenté en fibres brutes par l'intermédiaire d'un cylindre alimentaire, et un peigneur qui est un cylindre positionné contre le tambour principal et configuré pour récupérer les fibres travaillées sur le tambour principal afin de créer un voile non tissé.A conventional carding machine has a main drum with a spiked coating for the actual carding operation and supplied with raw fibers through a feed cylinder, and a comber which is a cylinder positioned against the main drum and configured to collect the fibers worked on the main drum to create a non-woven web.

Les fibres délicates telles que les fibres naturelles et les fibres de verre ont tendance à casser et à larguer de la poussière et des impuretés lors du processus de cardage. Cette poussière et ces impuretés se mettent au fond des garnitures des différents cylindres de la machine de cardage, ce qui est particulièrement pénalisant en ce qui concerne la garniture du peigneur. En effet, le peigneur, qui est le cylindre qui permet la création du voile, est l'élément essentiel concernant la qualité du produit. Lorsque la garniture du peigneur s'encrasse, notamment avec la poussière et/ou des impuretés, dans le cadre du cardage de fibres délicates, le voile produit est inhomogène et présente des trous. Il est alors nécessaire d'arrêter la ligne de production pour nettoyer le peigneur.Delicate fibers such as natural fibers and glass fibers tend to break and release dust and impurities during the carding process. This dust and these impurities get to the bottom of the linings of the various cylinders of the carding machine, which is particularly penalizing as regards the lining of the comb. Indeed, the comb, which is the cylinder which allows the creation of the veil, is the essential element concerning the quality of the product. When the lining of the comb becomes clogged, in particular with dust and / or impurities, in the context of carding delicate fibers, the web produced is inhomogeneous and has holes. It is then necessary to stop the production line to clean the comb.

Les documents US 977 191 A , US 327 771 A et JP H06 22370 U divulguent un dispositif de cardage selon l'état antérieur de la technique.The documents US 977 191 A , US 327,771 A and JP H06 22370 U disclose a carding device according to the prior art.

La présente invention vise à résoudre les inconvénients de l'état antérieur de la technique, en proposant un dispositif de cardage comprenant un dispositif de nettoyage de peigneur, ledit dispositif de nettoyage de peigneur permettant un nettoyage automatique et permanent du peigneur du dispositif de cardage, ce qui permet de créer un voile de qualité supérieure, et ce qui permet une augmentation de la production avec moins d'arrêts de ligne pour cause de nettoyage.The present invention aims to resolve the drawbacks of the prior state of the art, by proposing a carding device comprising a comb cleaning device, said comb cleaning device allowing automatic and permanent cleaning of the comb of the carding device, which makes it possible to create a higher quality veil, and which allows an increase in production with fewer line stoppages due to cleaning.

La présente invention a donc pour objet un dispositif de cardage, comprenant un tambour principal et un peigneur d'axe parallèle à celui du tambour principal et positionné contre le tambour principal et en aval du tambour principal dans le sens de circulation des fibres, le sens de rotation du peigneur étant opposé à celui du tambour principal, caractérisé par le fait que le dispositif de cardage comprend en outre un dispositif de nettoyage de peigneur comprenant un cylindre de récupération de poussières d'axe parallèle à celui du tambour principal et positionné contre le peigneur et un cylindre nettoyeur d'axe parallèle à celui du tambour principal et positionné à la fois contre le cylindre de récupération de poussières et contre le tambour principal, le sens de rotation du cylindre de récupération de poussières étant identique à celui du peigneur, et le sens de rotation du cylindre nettoyeur étant identique à celui du cylindre de récupération de poussières.The present invention therefore relates to a carding device, comprising a main drum and a comber with an axis parallel to that of the main drum and positioned against the main drum and downstream of the main drum in the direction of flow of the fibers, the direction of rotation of the comb being opposed to that of the main drum, characterized in that the carding device further comprises a comb cleaning device comprising a dust collecting cylinder with an axis parallel to that of the main drum and positioned against the comb and a cleaning cylinder with an axis parallel to that of the main drum and positioned both against the dust collecting cylinder and against the main drum, the direction of rotation of the dust collecting cylinder being the same as that of the comb, and the direction of rotation of the cleaning cylinder being identical to that of the dust collection cylinder.

Le transfert de poussières et d'impuretés entre le cylindre de récupération de poussières et le cylindre nettoyeur se fait par un jeu d'angles sur les garnitures de ces cylindres.The transfer of dust and impurities between the dust collection cylinder and the cleaning cylinder is effected by a set of angles on the linings of these cylinders.

Ainsi, le dispositif de nettoyage de peigneur permet un nettoyage automatique et permanent du peigneur du dispositif de cardage, ce qui permet de créer un voile de qualité supérieure homogène et sans trou.Thus, the comb cleaning device allows an automatic and permanent cleaning of the comb of the carding device, which creates a high-quality, homogeneous, hole-free web.

Le cylindre de récupération de poussières est configuré pour récupérer les poussières présentes au fond de la garniture du peigneur, et le cylindre nettoyeur est configuré pour récupérer automatiquement et au fur et à mesure les poussières sur le cylindre de récupération de poussières pour ensuite les renvoyer sur le tambour principal.The dust collection cylinder is configured to collect the dust present at the bottom of the comber liner, and the cleaning cylinder is configured to automatically and gradually collect the dust on the dust collection cylinder to then return it to the main drum.

Ainsi, les poussières et les impuretés contenues dans le fond de la garniture du peigneur sont emportées par le cylindre de récupération de poussières puis par le cylindre nettoyeur qui permet un nettoyage constant du cylindre de récupération de poussières, le tambour principal reprenant enfin ces poussières et impuretés.Thus, the dust and impurities contained in the bottom of the comb lining are carried away by the dust recovery cylinder then by the cleaning cylinder which allows constant cleaning of the dust recovery cylinder, the main drum finally taking up this dust and impurities.

Il est à noter que le dispositif de cardage pourrait également comprendre un cylindre alimentaire disposé contre le tambour principal en amont de celui-ci dans le sens de circulation des fibres, sans s'écarter du cadre de la présente invention.It should be noted that the carding device could also include a food cylinder placed against the main drum upstream of the latter in the direction of circulation of the fibers, without departing from the scope of the present invention.

Les axes des différents cylindres du dispositif de cardage sont entraînés en rotation par tout dispositif approprié, par exemple un ou plusieurs moteurs entraînant un ensemble de courroies.The axes of the various cylinders of the carding device are driven in rotation by any suitable device, for example one or more motors driving a set of belts.

Les sens de rotation des différents cylindres du dispositif de cardage permettent le passage automatique des poussières du peigneur au tambour principal.The directions of rotation of the various cylinders of the carding device allow the automatic passage of dust from the comb to the main drum.

Selon une caractéristique particulière de l'invention, le cylindre de récupération de poussières et le cylindre nettoyeur sont disposés au-dessus du peigneur.According to a particular characteristic of the invention, the dust recovery cylinder and the cleaning cylinder are arranged above the duster.

Ainsi, cela permet de faciliter le passage des poussières du peigneur au tambour principal.Thus, this makes it possible to facilitate the passage of dust from the comb to the main drum.

Selon une caractéristique particulière de l'invention, le cylindre de récupération de poussières possède une garniture souple ou rigide, de préférence souple.According to a particular characteristic of the invention, the dust collection cylinder has a flexible or rigid lining, preferably flexible.

Selon une caractéristique particulière de l'invention, le tambour principal, le peigneur et le cylindre nettoyeur possèdent chacun une garniture rigide. Le cylindre nettoyeur peut également avoir une garniture souple.According to a particular characteristic of the invention, the main drum, the comb and the cleaning cylinder each have a rigid lining. The cleaning cylinder may also have a soft lining.

Selon une caractéristique particulière de l'invention, la garniture de chacun du tambour principal et du cylindre nettoyeur possède des dents inclinées dans le sens de rotation de l'élément associé, et la garniture de chacun du cylindre de récupération de poussières et du peigneur possède des dents inclinées dans le sens opposé au sens de rotation de l'élément associé.According to a particular characteristic of the invention, the lining of each of the main drum and of the cleaning cylinder has teeth inclined in the direction of rotation of the associated element, and the lining of each of the dust collection cylinder and of the comb has teeth inclined in the direction opposite to the direction of rotation of the associated element.

Avantageusement, les dents de la garniture du cylindre de récupération de poussières sont plus longues que les dents de la garniture du peigneur, pour au minimum pénétrer le haut des dents de la garniture du peigneur pour nettoyer celles-ci.Advantageously, the teeth of the lining of the dust collection cylinder are longer than the teeth of the comb lining, to at least penetrate the top of the teeth of the comb lining in order to clean the latter.

Avantageusement, les dents de la garniture du cylindre nettoyeur sont plus longues que les dents de la garniture du cylindre de récupération de poussières, pour au minimum pénétrer le haut des dents de la garniture du cylindre de récupération de poussières pour nettoyer celles-ci.Advantageously, the teeth of the lining of the cleaning cylinder are longer than the teeth of the lining of the dust collection cylinder, to at least penetrate the top of the teeth of the lining of the dust collection cylinder in order to clean the latter.

Ainsi, les dents des garnitures du tambour principal sont inclinées dans le sens de circulation des fibres.Thus, the teeth of the linings of the main drum are inclined in the direction of flow of the fibers.

Selon une caractéristique particulière de l'invention, le dispositif de cardage comprend en outre un cylindre détacheur positionné contre le peigneur et en aval du peigneur dans le sens de circulation des fibres.According to a particular characteristic of the invention, the carding device further comprises a detacher cylinder positioned against the comb and downstream of the comb in the direction of flow of the fibers.

Ainsi, le cylindre détacheur est configuré pour détacher le voile de non-tissé à partir du peigneur.Thus, the peeler cylinder is configured to peel the web of nonwoven from the comber.

Selon une caractéristique particulière de l'invention, le diamètre du peigneur est inférieur à celui du tambour principal.According to a particular characteristic of the invention, the diameter of the comb is smaller than that of the main drum.

Selon une caractéristique particulière de l'invention, le diamètre du cylindre de récupération de poussières est inférieur à celui du peigneur.According to a particular characteristic of the invention, the diameter of the dust collection cylinder is smaller than that of the comb.

Selon une caractéristique particulière de l'invention, le diamètre du cylindre nettoyeur est inférieur à celui du cylindre de récupération de poussières.According to a particular characteristic of the invention, the diameter of the cleaning cylinder is smaller than that of the dust collection cylinder.

A titre d'exemple non limitatif, le diamètre du tambour principal peut être compris entre 1200 et 1500 mm, le diamètre du peigneur peut être compris entre 500 et 700 mm, le diamètre du cylindre de récupération de poussières peut être compris entre 200 et 350 mm, et le diamètre du cylindre nettoyeur peut être compris entre 100 et 200 m.By way of non-limiting example, the diameter of the main drum can be between 1200 and 1500 mm, the diameter of the comber can be between 500 and 700 mm, the diameter of the dust collection cylinder can be between 200 and 350 mm, and the diameter of the cleaning cylinder can be between 100 and 200 m.

Il est bien entendu que ces dimensions ne sont données qu'à titre d'exemple, l'homme du métier sachant adapter les dimensions des différents éléments en fonction du voile de non-tissé à obtenir.It is understood that these dimensions are given only by way of example, the person skilled in the art knowing how to adapt the dimensions of the various elements according to the web of nonwoven to be obtained.

Selon une caractéristique particulière de l'invention, la vitesse de rotation du cylindre nettoyeur est supérieure est à celle du cylindre de récupération de poussières et inférieure à celle du tambour principal.According to a particular characteristic of the invention, the speed of rotation of the cleaning cylinder is greater than that of the dust collection cylinder and less than that of the main drum.

Ainsi, la vitesse supérieure du cylindre nettoyeur par rapport au cylindre de récupération de poussières permet de récupérer davantage de poussières sur le cylindre de récupération de poussières. De plus, la vitesse du cylindre nettoyeur n'est jamais supérieure à celle du tambour principal afin de permettre la récupération des poussières par le tambour principal.Thus, the higher speed of the cleaning cylinder compared to the dust collection cylinder allows more dust to be collected on the dust collection cylinder. In addition, the speed of the cleaning cylinder is never greater than that of the main drum to allow dust collection by the main drum.

A titre d'exemple non limitatif, la vitesse de rotation du tambour principal peut être comprise entre 750 et 1100 tour/min, la vitesse de rotation du peigneur peut être comprise entre 20 et 250 tour/min, la vitesse de rotation du cylindre de récupération de poussières peut être comprise entre 50 et 300 tour/min, la vitesse de rotation du cylindre nettoyeur peut être comprise entre 50 et 400 tour/min, et la vitesse de rotation du cylindre détacheur peut être comprise entre 50 et 400 tour/min.By way of non-limiting example, the speed of rotation of the main drum can be between 750 and 1100 rev / min, the speed of rotation of the comb can be between 20 and 250 rev / min, the speed of rotation of the cylinder of dust recovery can be between 50 and 300 rev / min, the rotation speed of the cleaning cylinder can be between 50 and 400 rev / min, and the rotational speed of the stripper cylinder can be between 50 and 400 rev / min .

Il est bien entendu que ces vitesses ne sont données qu'à titre d'exemple, l'homme du métier sachant adapter les vitesses de rotation des différents éléments en fonction du voile de non-tissé à obtenir.It is understood that these speeds are given only by way of example, the person skilled in the art knowing how to adapt the speeds of rotation of the various elements according to the web of nonwoven to be obtained.

L'invention a également pour objet une machine de cardage, caractérisée par le fait qu'elle comprend un dispositif de cardage tel que défini ci-dessus, dont le tambour principal est alimenté par un cylindre alimentaire.The subject of the invention is also a carding machine, characterized in that it comprises a carding device as defined above, the main drum of which is fed by a food cylinder.

Pour mieux illustrer l'objet de la présente invention, on va en décrire ci-après, à titre illustratif et non limitatif, un mode de réalisation préféré, avec référence au dessin annexé.To better illustrate the object of the present invention, a preferred embodiment will be described below, by way of illustration and not by way of limitation, with reference to the accompanying drawing.

Sur ce dessin :
- la Figure 1 est une vue schématique de côté d'un dispositif de cardage selon la présente invention.On this drawing :
- the Figure 1 is a schematic side view of a carding device according to the present invention.

Si l'on se réfère à la Figure 1, on peut voir qu'il y est représenté un dispositif de cardage 1 selon la présente invention.If we refer to the Figure 1 , it can be seen that there is shown a carding device 1 according to the present invention.

Le dispositif de cardage 1 comprend un tambour principal 2 et un peigneur 3 d'axe parallèle à celui du tambour principal 2 et positionné contre le tambour principal 2 et en aval du tambour principal 2 dans le sens de circulation des fibres, le sens de rotation du peigneur 3 étant opposé à celui du tambour principal 2.The carding device 1 comprises a main drum 2 and a comber 3 with an axis parallel to that of the main drum 2 and positioned against the main drum 2 and downstream of the main drum 2 in the direction of fiber circulation, the direction of rotation of the comber 3 being opposite to that of the main drum 2.

Le diamètre du peigneur 3 est inférieur à celui du tambour principal 2.The diameter of the comb 3 is smaller than that of the main drum 2.

Le sens de circulation des fibres correspond au sens dans lequel circulent les fibres dans le dispositif de cardage 1, des fibres brutes étant amenées au tambour principal 2 et un voile de non-tissé sortant du peigneur 3.The direction of circulation of the fibers corresponds to the direction in which the fibers circulate in the carding device 1, raw fibers being fed to the main drum 2 and a web of nonwoven coming out of the comber 3.

Il est à noter que le dispositif de cardage 1 pourrait également comprendre un cylindre alimentaire disposé contre le tambour principal 2 et en amont de celui-ci dans le sens de circulation des fibres, sans s'écarter du cadre de la présente invention.It should be noted that the carding device 1 could also include a food cylinder placed against the main drum 2 and upstream of the latter in the direction of circulation of the fibers, without departing from the scope of the present invention.

Le dispositif de cardage 1 comprend en outre un dispositif de nettoyage de peigneur 4 disposé au-dessus du peigneur 3 et permettant un nettoyage automatique et permanent du peigneur 3, ce qui permet de créer un voile de qualité supérieure homogène et sans trou.The carding device 1 further comprises a comb cleaning device 4 arranged above the comb 3 and allowing an automatic and permanent cleaning of the comb 3, which makes it possible to create a uniform high quality veil without holes.

Le dispositif de nettoyage de peigneur 4 comprend un cylindre de récupération de poussières 5 d'axe parallèle à celui du tambour principal 2 et positionné contre le peigneur 3 et un cylindre nettoyeur 6 d'axe parallèle à celui du tambour principal 2 et positionné à la fois contre le cylindre de récupération de poussières 5 et contre le tambour principal 2, le sens de rotation du cylindre de récupération de poussières 5 étant identique à celui du peigneur 3, et le sens de rotation du cylindre nettoyeur 6 étant identique à celui du cylindre de récupération de poussières 5.The cleaning device of the comber 4 comprises a dust collecting cylinder 5 with an axis parallel to that of the main drum 2 and positioned against the comber 3 and a cleaning cylinder 6 with an axis parallel to that of the main drum 2 and positioned at the bottom. both against the dust collection cylinder 5 and against the main drum 2, the direction of rotation of the dust collection cylinder 5 being identical to that of the comb 3, and the direction of rotation of the cleaning cylinder 6 being identical to that of the cylinder dust collection 5.

Le diamètre du cylindre de récupération de poussières 5 est inférieur à celui du peigneur 3, et le diamètre du cylindre nettoyeur 6 est inférieur à celui du cylindre de récupération de poussières 5.The diameter of the dust collection cylinder 5 is smaller than that of the comber 3, and the diameter of the cleaning cylinder 6 is smaller than that of the dust collection cylinder 5.

Les flèches 2a, 3a, 5a et 6a représentent respectivement le sens de rotation du tambour principal 2, du peigneur 3, du cylindre de récupération de poussières 5 et du cylindre nettoyeur 6.Arrows 2a, 3a, 5a and 6a respectively represent the direction of rotation of the main drum 2, of the comber 3, of the dust collecting cylinder 5 and of the cleaning cylinder 6.

Le cylindre de récupération de poussières 5 est configuré pour récupérer les poussières et impuretés présentes au fond de la garniture du peigneur 3, et le cylindre nettoyeur 6 est configuré pour récupérer automatiquement et au fur et à mesure les poussières présentes sur le cylindre de récupération de poussières 5 pour ensuite les renvoyer sur le tambour principal 2.The dust recovery cylinder 5 is configured to recover the dust and impurities present at the bottom of the combing pad 3, and the cleaning cylinder 6 is configured to automatically and gradually recover the dust present on the recovery cylinder. dust 5 and then return them to the main drum 2.

Ainsi, les poussières et impuretés contenues dans le fond de la garniture du peigneur 3 sont emportées par le cylindre de récupération de poussières 5 puis par le cylindre nettoyeur 6 qui permet un nettoyage constant du cylindre de récupération de poussières 5, le tambour principal 2 reprenant enfin ces poussières et impuretés, les sens de rotation des différents cylindres du dispositif de cardage 1 permettant le passage automatique des poussières du peigneur 3 au tambour principal 2.Thus, the dust and impurities contained in the bottom of the combing pad 3 are carried away by the dust recovery cylinder 5 then by the cleaning cylinder 6 which allows constant cleaning of the dust recovery cylinder 5, the main drum 2 taking up finally these dust and impurities, the directions of rotation of the various cylinders of the carding device 1 allowing the automatic passage of the dust from the comb 3 to the main drum 2.

Il est à noter que les axes des différents cylindres du dispositif de cardage 1 sont entraînés en rotation par un ou plusieurs moteurs, directement ou par l'intermédiaire d'une ou plusieurs courroies et/ou d'un ou plusieurs engrenages ou par tout système d'entraînement approprié (non représenté à la Figure 1 pour ne pas surcharger le dessin).It should be noted that the axes of the various cylinders of the carding device 1 are driven in rotation by one or more motors, directly or via one or more belts and / or one or more gears or by any system. appropriate training (not shown in Figure 1 so as not to overload the drawing).

Le cylindre de récupération de poussières 5 possède une garniture souple ou rigide pour récupérer les poussières et impuretés au fond de la garniture du peigneur 3.The dust collection cylinder 5 has a flexible or rigid lining for collecting dust and impurities at the bottom of the lining of the comber 3.

Le tambour principal 2, le peigneur 3 et le cylindre nettoyeur 6 possèdent quant à eux une garniture rigide uniquement.The main drum 2, the comber 3 and the cleaning cylinder 6 for their part have only a rigid lining.

La garniture du tambour principal 2 et du cylindre nettoyeur 6 possède des dents, respectivement 2b et 6b, inclinées dans le sens de rotation du cylindre associé. La garniture de chacun du cylindre de récupération de poussières 5 et du peigneur 3 possède des dents, respectivement 5b et 3b, inclinées dans le sens opposé au sens de rotation du cylindre associé.The lining of the main drum 2 and of the cleaning cylinder 6 has teeth, respectively 2b and 6b, inclined in the direction of rotation of the associated cylinder. The lining of each of the dust collecting cylinder 5 and of the comb 3 has teeth, respectively 5b and 3b, inclined in the direction opposite to the direction of rotation of the associated cylinder.

Les dents 2b de la garniture du tambour principal 2 sont ainsi inclinées dans le sens de circulation des fibres, tandis que les dents 6b des garnitures du cylindre de récupération de poussières 5 et du cylindre nettoyeur 6 sont inclinées dans le sens de circulation des poussières.The teeth 2b of the lining of the main drum 2 are thus inclined in the direction of circulation of the fibers, while the teeth 6b of the linings of the dust collecting cylinder 5 and of the cleaning cylinder 6 are inclined in the direction of circulation of the dust.

La vitesse de rotation du cylindre nettoyeur 6 est supérieure est à celle du cylindre de récupération de poussières 5, afin de récupérer davantage de poussières sur le cylindre de récupération de poussières 5, et est inférieure à celle du tambour principal 2, afin de permettre la récupération des poussières par le tambour principal 2.The rotation speed of the cleaning cylinder 6 is higher than that of the dust collecting cylinder 5, in order to collect more dust on the dust collecting cylinder 5, and is lower than that of the main drum 2, in order to allow the dust collection by the main drum 2.

Le dispositif de cardage 1 comprend en outre un cylindre détacheur 7 positionné contre le peigneur 3 et en aval du peigneur 3 dans le sens de circulation des fibres, ledit cylindre détacheur 7 étant configuré pour détacher le voile de non-tissé à partir du peigneur 3.The carding device 1 further comprises a detaching cylinder 7 positioned against the comb 3 and downstream of the comb 3 in the direction of fiber flow, said detaching cylinder 7 being configured to detach the web of nonwoven from the comb 3. .

Claims (11)

  1. - Carding device (1), comprising a main drum (2) and a doffer (3) with an axis parallel to that of the main drum (2) and positioned against the main drum (2) and downstream of the main drum (2) in the direction of fibre flow, the direction of rotation of the doffer (3) being opposite that of the main drum (2), characterized in that the carding device (1) further comprises a doffer cleaning device (4) comprising a dust collection cylinder (5) with an axis parallel to that of the main drum (2) and positioned against the doffer (3) and a cleaning cylinder (6) with an axis parallel to that of the main drum (2) and positioned both against the dust collection cylinder (5) and against the main drum (2), the direction of rotation of the dust collection cylinder (5) being identical to that of the doffer (3), and the direction of rotation of the cleaning cylinder (6) being identical to that of the dust collection cylinder (5), the dust collection cylinder being configured to collect the dust present at the bottom of the doffer lining, and the cleaning cylinder being configured to automatically and progressively collect the dust on the dust collection cylinder in order to then return it to the main drum.
  2. - Carding device (1) according to claim 1, characterized in that the dust collection cylinder (5) and the cleaning cylinder (6) are arranged above the doffer (3).
  3. - Carding device (1) according to claim 1 or 2, characterized in that the dust collection cylinder (5) has a flexible or rigid lining.
  4. - Carding device (1) according to one of the claims 1 to 3, characterized in that the main drum (2), the doffer (3) and the cleaning cylinder (6) each have a rigid lining.
  5. - Carding device (1) according to claim 3 or 4, characterized in that the lining of the main drum (2) has teeth (2b) inclined in the direction of rotation of the main drum (2), the lining of the cleaning cylinder (6) has teeth (6b) inclined in the direction of rotation of the cleaning cylinder (6), the lining of the dust collection cylinder (5) has teeth (5b) inclined in the direction opposite to the direction of rotation of the dust collection cylinder (5), and the lining of the doffer (3) has teeth (3b) inclined in the direction opposite to the direction of rotation of the doffer (3) .
  6. - Carding device (1) according to one of the claims 1 to 5, characterized in that the carding device (1) further comprises a detaching cylinder (7) positioned against the doffer (3) and downstream of the doffer (3) in the direction of fibre flow.
  7. - Carding device (1) according to one of the claims 1 to 6, characterized in that the diameter of the doffer (3) is smaller than that of the main drum (2).
  8. - Carding device (1) according to one of the claims 1 to 7, characterized in that the diameter of the dust collection cylinder (5) is smaller than that of the doffer (3) .
  9. - Carding device (1) according to one of the claims 1 to 8, characterized in that the diameter of the cleaning cylinder (6) is smaller than that of the dust collection cylinder (5).
  10. - Carding device (1) according to one of the claims 1 to 9, characterized in that the rotation speed of the cleaning cylinder (6) is higher than that of the dust collection cylinder (5) and lower than that of the main drum (2) .
  11. - Carding machine, characterized in that it comprises a carding device (1) according to one of the claims 1 to 10, the main drum of which is fed by a feeding cylinder.
EP18201623.8A 2017-10-20 2018-10-19 Carding device comprising a device for cleaning doffer Active EP3473753B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1759940A FR3072691B1 (en) 2017-10-20 2017-10-20 CARDING DEVICE INCLUDING A COMBINER CLEANING DEVICE

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EP3473753A1 EP3473753A1 (en) 2019-04-24
EP3473753B1 true EP3473753B1 (en) 2021-12-22

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EP18201623.8A Active EP3473753B1 (en) 2017-10-20 2018-10-19 Carding device comprising a device for cleaning doffer

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FR (1) FR3072691B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3113684B1 (en) 2020-09-03 2023-06-09 Andritz Perfojet Sas Device for forming by carding one or more veil(s) of fibres, in particular of nonwoven

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US372771A (en) * 1887-11-08 Carding-machine
DE64660C (en) * KLEIN, HUNDT & CO. in Düsseldorf Wandering volant cover at carding
US977191A (en) * 1908-07-07 1910-11-29 William Henry Hoyle Elongating-machine.
JP2547994Y2 (en) * 1992-08-19 1997-09-17 豊和工業株式会社 Web focusing device

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FR3072691A1 (en) 2019-04-26
FR3072691B1 (en) 2020-11-20
EP3473753A1 (en) 2019-04-24

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