EP0704561B1 - Vorrichtung zur Abnahme und zum Transportieren mit hoher Geschwindigkeit eines Faservlieses am Ende einer Karde - Google Patents

Vorrichtung zur Abnahme und zum Transportieren mit hoher Geschwindigkeit eines Faservlieses am Ende einer Karde Download PDF

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Publication number
EP0704561B1
EP0704561B1 EP94490055A EP94490055A EP0704561B1 EP 0704561 B1 EP0704561 B1 EP 0704561B1 EP 94490055 A EP94490055 A EP 94490055A EP 94490055 A EP94490055 A EP 94490055A EP 0704561 B1 EP0704561 B1 EP 0704561B1
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EP
European Patent Office
Prior art keywords
web
cylinder
suction
veil
rectilinear
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EP94490055A
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English (en)
French (fr)
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EP0704561A1 (de
EP0704561B2 (de
Inventor
Marc Brabant
Jean-Louis Dupont
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Thibeau SA
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Thibeau SA
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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/74—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being orientated, e.g. in parallel (anisotropic fleeces)
    • 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
    • D01G15/02—Carding machines
    • D01G15/12—Details
    • D01G15/46—Doffing or like arrangements for removing fibres from carding elements; Web-dividing apparatus; Condensers
    • D01G15/465—Doffing arrangements for removing fibres using, or cooperating with, pneumatic means
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres

Definitions

  • the present invention relates to the recovery and transport of a fibrous veil at the outlet of carding. Its main purpose is a device that detaches and transport at high speed a fibrous web leaving the last cylinder worker with a card, without causing any significant change in the structure of the veil and in particular of stretching this veil.
  • a small diameter detaching cylinder which is adjacent to the last working cylinder of the card, and which is rotated at the same speed and in the same direction as the last working cylinder.
  • the last cylinder worker will be for example a painter, whose function is to parallelize the fibers of the veil, or on the contrary a condenser having the function of blurring the fibers of the veil together, so as to increase the cohesion of this veil in the direction transverse to the working direction of the card.
  • the external surface of the cylinder is designed so as to allow the attachment of the fibrous web over the entire periphery of the detaching cylinder, with however less adhesion than that of the veil on the last cylinder worker. It could for example be a cylinder equipped with an isosceles lining or of a cylinder having longitudinal grooves over its entire periphery.
  • the second known type of detaching cylinder consists of a cylinder perforated, with a fixed suction sector opposite the last cylinder worker.
  • a detaching cylinder has for example been described in the patent French N ° 1,500,746.
  • the fibrous veil When the fibrous veil reaches the sector level suction, it is placed on the periphery of the detaching cylinder in rotation. Beyond this suction sector, the fibrous veil theoretically no longer adheres to the periphery of the detaching cylinder.
  • the rotation of the detaching cylinder causes downstream of the suction sector a peripheral suction flow superficial which tends to maintain the fibrous veil on this cylinder, which translated, in the absence of additional means of recovery of the veil, by a winding of the web at the periphery of the suction cylinder.
  • the first type mentioned above of detaching cylinder has the main advantage of allowing more recovery reliable fibrous web at the periphery of the working cylinder.
  • the counterpart of this reliability results in an adhesion of the fibrous veil to the periphery of the detaching cylinder which is stronger than that of the fibrous web at the periphery of the suction detaching cylinder, beyond the suction sector.
  • the goal of implementing this system is to redirect randomly the fibers of the veil during its transfer by aspiration of the detaching cylinder on the conveyor belt, and thereby obtain out of card a veil whose fibers are blurred.
  • the suction is carried out in the area where the fibrous web is taken up by the detaching cylinder, area in which the veil is turned back. So the suction means create a zone of turbulence in the shrinkage zone of the web, which allows the fibers of said veil to be scrambled.
  • the portion of the band of transport used to receive the veil cannot be a straight portion and is necessarily a curved portion. In this case it is more particularly of a portion of cylinder.
  • the peripheral speed of the detaching cylinder is preferably chosen to be at least 20% higher than the linear speed of the conveyor belt.
  • the purpose of the present invention is to provide a device which, unlike the aforementioned devices of the prior art, makes it possible to detach and transport a fibrous veil out of the card, without causing modification in the structure of the web, and in particular without causing stretching of this veil, and thereby accelerate the rate of work of the card without harming the quality of the fibrous veil produced.
  • the veil when the veil arrives in the area of vacuum created by the suction means between the detaching cylinder and the straight portion of the conveyor belt used to receive the web, under the combined effects of gravity and aspiration, it detaches from the periphery of the detaching cylinder and is posed as it is on the surface and in the extension of the conveyor belt. This being driven at substantially the same speed linear than the peripheral speed of the detaching cylinder, the web does not undergo lengthwise.
  • the distance separating the straight portion of reception of the web and the periphery of the detaching cylinder must be sufficiently weak, so that during its transfer, the veil does not undergo floating likely to damage it or cause transverse fold lines in the veil. It is therefore preferable that this distance is equal or slightly greater than the thickness of the veil.
  • this distance value is not limitation of the invention, since it has been possible in practice to regulate this distance up to a value of up to a hundred times the thickness of the web product, without observing deterioration of the veil, which is visible to the naked eye. In in addition to the lower limit of this distance, it was possible to test values less than the thickness of the uncompressed web, without this changes the appearance of the veil.
  • the suction flow created across the conveyor belt should be enough to compress the veil sufficiently in the region of the detaching cylinder, so that the veil does not either more in contact with the periphery of the detaching cylinder, once placed on the straight portion of the conveyor belt.
  • the transporter of the device of the invention can be used to route the veil from the last carding cylinder to a treatment of this veil such as for example the rollers of a grille.
  • this conveyor belt can also be an integral part a machine arranged at the card outlet. More specifically, this transporter could constitute the entrance apron of a machine, such as for example a spreader lapper.
  • the distance separating the straight receiving portion of the web and the periphery of the detaching cylinder will be adjustable so that be adapted to different wall thicknesses.
  • the suction flow which is created through the straight portion of the strip transport must be powerful enough to compensate for the adhesion of the veil fibrous at the periphery of the detaching cylinder. This power depends on several parameters, among which the grammage of the fibrous veil produced, the inclination of the rectilinear portion of reception of the veil with respect to the horizontal, and the type of detacher cylinder used.
  • the vacuum zone created by the suction means has the following characteristics. It extends at least over the entire width of the veil, which avoids any risk of folding of the longitudinal edges of the veil during its transfer between the detaching cylinder and the conveyor belt; it starts at the line of quasi-tangency between the detaching cylinder and the portion rectilinear reception of the veil, or upstream of this line of quasi-tangency, and extends downstream of the line of quasi-tangency over at least one radius of the cylinder detacher.
  • the terms upstream and downstream are here and in the rest of this text defined with respect to the direction of movement of the rectilinear portion for receiving the sail.
  • the veil becomes more difficult to detach from the periphery of the detaching cylinder, and on the other hand that the transfer of this veil on the conveyor belt, if carried out beyond this line of quasi-tangency, risk of causing the web to float between the detaching cylinder and the strip carrier, which is detrimental to the cohesion of this veil.
  • the effects of turbulence created in particular by the rotation of the detaching cylinder downstream of the line of quasi-tangency are mainly felt in the space between the periphery of the detaching cylinder and the rectilinear portion for receiving the web, in downstream of the quasi-tangency line. For this reason, in order to avoid any risk of lifting of the veil on the surface of the conveyor belt, it is preferable to extend the depression zone from the quasi-tangency line, and on at least a distance equivalent to the radius of the detaching cylinder.
  • the distance between the line of quasi-tangency, and the beginning of the depression zone located upstream of this line ie less than the radius of the detaching cylinder.
  • the vacuum zone created by the suction means is not constant, and depression increases continuously or almost continuously to a maximum of the depression zone, then decreases continuously until the end of the depression zone.
  • the maximum of the area of depression is located at or near the line of quasi-tangency line, being distant from it by a maximum radius of the detaching cylinder.
  • a suction box whose suction face, located opposite the rectilinear portion of the portion of the web, consists of two inclined planes converging and separated by a suction slot, which is arranged substantially in a direction orthogonal to the direction of movement of said portion straight.
  • the suction slot corresponds to the maximum of the vacuum zone, inclined planes to decrease this depression, with a gradient depending on the inclination of each plane.
  • the present invention therefore also has another object as a card fitted at the outlet with at least two devices of the invention, and which are arranged to allow the superposition of the sails from their two detaching cylinders.
  • the card is equipped with exit from a single conveyor belt which is common to both devices.
  • each device having its own belt conveyor, a first conveyor conveys a first veil up to the belt of the second conveyor, so as to position this first veil above and in the extension of the strip of this second carrier ; the second transporter is equipped, at the junction area between the two strips, suction means which allow the first veil on the veil carried by the second transporter.
  • FIG. 1 shows the last working cylinder 1 of a card, and a device 3 making it possible to detach the fibrous web 2 which is wound at the periphery of the worker cylinder 1, and subsequently transport this veil to great speed.
  • This device 3 consists of a detaching cylinder 4, a conveyor belt 5 and a suction box 6.
  • the detaching cylinder 4 is adjacent to the worker cylinder 1, and is driven in the same direction of rotation and with the same speed around its axis of rotation 7.
  • the periphery of this cylinder is fitted with a gasket 8 with isosceles points.
  • the conveyor 5 has a band with multiple perforations, and which is therefore permeable to air.
  • Portion 9 of this strip shown in Figure 1 is rectilinear, and passes near the periphery of the detaching cylinder 4, in a direction orthogonal to the axis of rotation 7 of this detaching cylinder. She is also trained with the same linear speed than the peripheral speed of the detaching cylinder 4.
  • the straight portion 9 of the conveyor belt 5 is inclined upward relative to the horizontal at an angle ⁇ .
  • This inclination is mainly conditioned by problems of space of the conveyor 5 relative to the main drum (not shown) of the card, and is linked to the position of the working cylinder 1 relative to this drum, as well as to the position of the detaching cylinder with respect to the working cylinder 1. It is therefore conceivable that this angle ⁇ is zero, which is illustrated in the example of a card in FIG. 2C.
  • the distance between the rectilinear portion 9 for receiving the web and the periphery of the detaching cylinder, that is to say in this case the tips of the lining 8, is represented in FIG. 1 by the distance e .
  • the position of the axis of rotation 7 of the detaching cylinder 4 was adjustable in a direction orthogonal to the rectilinear portion 9 for receiving the web, so that the distance e is adjustable as a function of the thickness of the web.
  • the suction box 6 is positioned opposite the detaching cylinder 4, on the other side of the straight portion 9 of the conveyor belt, and creates a vacuum zone 10 of width L between the detaching cylinder 4 and the straight portion 9 of the conveyor belt 5, which straight portion 9 comes almost to the tangent of the detaching cylinder, along a line T called the line of quasi-tangency.
  • the vacuum zone 10 begins upstream and at a distance d from the line of quasi-tangency T, relative to the direction of movement D of the strip 9, and extends in downstream of this quasi-tangency line, over a distance of .
  • detaching cylinder a smooth cylinder.
  • the adhesion would be mainly due to this surface air flow.
  • suction cylinder perforated as a detaching cylinder.
  • the advantage of using a detaching cylinder isosceles lining or similar, is to increase the reliability of the recovery of the veil by this cylinder. Note that a comparable degree of reliability would be obtained with a detaching cylinder having longitudinal grooves over its entire periphery.
  • the web 2 When the web 2 arrives at the beginning of the vacuum zone 10, it begins to detach from the periphery of the detaching cylinder 4, at point B, under the combined effects of gravity and the suction flow created by the box 6 at through the strip 9. As a result, the web 2 is placed on the strip 9 at the level of the quasi-tangency line T and is held on the surface of this strip 9 until the exit from the vacuum zone 10.
  • the distance e must be sufficiently small so that the web 2 does not undergo deformation, in particular under the effect of its own weight or of the air flow generated by the rotation of the detaching cylinder 4, when it passes from the periphery of the cylinder detacher 4 to the conveyor belt 5.
  • the fibrous veil is entrained without sliding on the surface of the conveyor belt 9, by the thin layer of air which is generated by the displacement of this strip.
  • the speed of the veil is therefore identical to the speed of the conveyor belt.
  • This being also identical to the peripheral speed of the detaching cylinder 4, it follows that the fibrous veil does not undergo any stretching. It should be noted that in practice it is possible speed tolerance of up to 2% between speed linear of the conveyor and the peripheral speed of the detaching cylinder, without this variation does not cause a modification of the structure of the veil which is detrimental to the quality and cohesion of the veil produced.
  • the suction box 6 has a suction face formed by two converging inclined planes 11 a , 11 b , substantially forming a V and separated by a suction slot 12, which is arranged in a direction orthogonal to the direction of movement D of the straight portion 9 of the conveyor belt 5.
  • This suction face preferably extends over the entire width of the web 2 so that the vacuum zone between the conveyor belt and the detaching cylinder 4 reaches the edges of this sail.
  • This suction box 6 creates a variable vacuum zone, which increases from point B to a maximum at the suction slot 12, then decreases until the end of the vacuum zone. The speed of the suction flow generated by this suction box through the straight portion 9 of the conveyor belt 5 is therefore maximum at the suction slot 12.
  • the vacuum zone 10 must at least compensate for the adhesion of the fibrous web on the periphery of the detaching cylinder 4, as well as the effects of turbulence created downstream of the quasi-tangency line T.
  • the characteristics of this vacuum zone depends mainly on the type of detaching cylinder used, the grammage of the fibrous web produced and the angle of inclination ⁇ of the straight portion 9.
  • the radius r of the cylinder with isosceles lining was approximately 80 mm; the suction box 6 was positioned so that the distance d was about 20 mm, and the distance d was substantially equal to the radius r ; the speed of the suction flow, measured between the detaching cylinder 4 and the straight portion 9, at the level of the suction slot 12, was between 1 and 2 m / second; the angle ⁇ could vary in absolute value between 0 and 90 ° and the distance e was adjustable in 0 and 50mm.
  • suction box 6 which has been described by any type of suitable suction means. More particularly, it is possible to use a suction box creating a vacuum zone with vacuum gradients which are different upstream or downstream from the suction slot 12, which results in a different inclination of the two. convergent planes 11 a , 11 b .
  • the fibrous veil produced has a reduced thickness and lower grammage. Therefore, in order to avoid any risk of winding the fibrous web at the periphery of the detaching cylinder 4, at the start of the card, it is possible within the framework of the invention to increase the suction flow generated by the box 6, until the card has reached its normal speed and that the veil produced has the required characteristics of weight and thickness.
  • FIGS. 2A, 2B and 2C show three possible examples of configuration at the output of the card, allowing the parallel production of two fibrous veils, and their superposition.
  • the main drum of the carde is referenced 13.
  • the first upper exit channel consists of a counter-drum 14, a doffer 15, and two successive condensers 16 and 17; the second lower outlet channel is constituted by a counter-drum 18 and a comber 19.
  • These two exit routes are respectively equipped with a device 20,21, which is similar to that of FIG. 1.
  • the detaching cylinder and the suction box of each device are respectively referenced 22 and 23; the last condenser cylinder 17 for the upper track and the cylinder comb 19 for the lower track correspond to the working cylinder 1 of the Figure 1 device.
  • this conveyor belt has a straight portion 24, which is used for the reception of the two fibrous webs at the level of the two devices 20 and 21.
  • the first fibrous veil, coming from the lower track is conveyed by this portion straight 24 to the entrance of the vacuum zone created by the box suction 23 of the device 20 of the upper channel.
  • the second fibrous veil from the upper track is superimposed on the first fibrous web, the suction flow created by the suction box allowing both to maintain the first fibrous veil from the lower route on the surface of the straight portion 24 and detach the second fibrous web from the upper track to superimpose it on the first fibrous veil.
  • the detaching cylinder 22 and the box 23 of the device 20 of the upper outlet channel are positioned on either side of the straight portion 25 of the belt conveyor, just downstream the change of direction of the conveyor belt.
  • This variant of advantage has the advantage of avoiding the risks of separation of the fibrous veil when changing the direction of the carrier. Indeed, when the first veil fibrous from the lower track arrives at this change of direction, it is maintained on the surface of the carrier due to the presence of the box suction 23 just downstream of this change of direction.
  • each device 20, 21 has its own belt conveyor 26, 27.
  • the detaching cylinder 22 of each device 20, 21 is located substantially vertically respectively of the condenser 17 and the doffer 19.
  • the conveyor 27 is horizontal.
  • the carrier 26 is inclined downward and allows the routing of the fibrous web coming from the track above the surface and in line with the transporter 27. The superposition of the two fibrous webs coming from the card is therefore carried out at the level of the junction zone 28 between the two conveyors 26 and 27.
  • junction zone 28 are also provided with additional suction means whose function is on the one hand to maintain the first fibrous veil coming from the way less than the surface of the conveyor 27 during the superposition of the two sails and on the other hand to place, on this conveyor 27, the fibrous web conveyed by the carrier 26.

Claims (12)

  1. Vorrichtung zur Abnahme und zum Transportieren eines Faservlieses am Ende einer Karde, die der Art nach einen Abnahmezylinder (4), der die Übernahme dieses Vlieses auf seinem Umfang am Ende der Karde sicherstellt, und einen Bandförderer aufweist (5), der einen geradlinigen Abschnitt (9) für die Aufnahme des Vlieses (2) aufweist, der in der Nähe des Abnahmezylinders (4) und in einer Richtung senkrecht zur Drehachse (7) des Abnahmezylinders vorbeiläuft, dadurch gekennzeichnet, daß sie Ansaugmittel aufweist, daß das Fördererband (5) luftdurchlässig ist und zwischen den Ansaugmitteln und dem Abnahmezylinder (4) angeordnet ist, und daß die Ansaugmittel dazu eingerichtet sind, eine Nieder- bzw. Unterdruckzone zwischen dem Abnahmezylinder (4) und dem geradlinigen Abschnitt (9) des Bandes auf Höhe ihrer tangentenartigen Linie (T) derart zu erzeugen, daß, wenn das Fördererband (5) im wesentlichen mit der gleichen Lineargeschwindigkeit wie die Umfangsgeschwindigkeit des Abnahmezylinders (4) betrieben wird, das Faservlies sich von Abnahmezylinder auf Höhe der tangentenartigen Linie (T) ablösen kann und sich auf dem geradlinigen Abschnitt (9) des Förderers mit großer Geschwindigkeit auflegen kann, ohne eine merkliche Änderung in seiner Struktur zu erfahren.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Abstand zwischen dem Umfang des Abnahmezylinders (4) und dem geradlinigen Abschnitt (9) zur Aufnahme des Vlieses einstellbar ist.
  3. Vorrichtung nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß der Abstand e zwischen dem geradlinigen Abschnitt (9) zur Aufnahme des Vlieses und dem Umfang des Abnahmezylinders (4) bevorzugt gleich ist der Dicke £ des Vlieses oder ein wenig größer als diese.
  4. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Ansaugmittel zwischen dem geradlinigen Abschnitt (9) zur Aufnahme des Vlieses (2) und dem Abnahmezylinder (4) eine Niederdruckzone (10) erzeugen, die sich mindestens über die gesamte Breite des Vlieses (2) erstreckt, die bei der tangentenartigen Linie T zwischen dem Abnahmezylinder (4) und dem geradlinigen Abschnitt (9) zur Aufnahme des Vlieses oder stromaufwärts von dieser tangentenartigen Linie T in Bezug auf die Bewegungsrichtung D des geradlinigen Abschnitts (9) zur Aufnahme des Vlieses beginnt, und die sich stromabwärts von der tangentenartigen Linie T über mindestens einen Radius r des Abnahmezylinders erstreckt.
  5. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß der Abstand d zwischen der tangentenartigen Linie T und dem Beginn der Niederdruckzone kleiner ist als der Radius r des Abnahmezylinders (4).
  6. Vorrichtung nach Anspruch 4 oder 5, dadurch gekennzeichnet, daß die Ansaugmittel derartig konzipiert sind, daß sie eine nicht-konstante Niederdruckzone (10) erzeugen, mit einem Niederdruckwert, der kontinuierlich oder gewissermaßen kontinuierlich vom Beginn der Zone bis zu einem Maximum zunimmt und dann kontinuierlich oder gewissermaßen kontinuierlich bis zum Ende der Niederdruckzone abnimmt.
  7. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, daß die Ansaugmittel aus einem Ansaugkasten (6) bestehen, dessen Ansaugfläche, die dem geradlinigen Abschnitt (9) zur Übernahme des Vlieses zugewandt ist, von zwei konvergierenden, geneigten Ebenen (11a, 11b) gebildet ist, die durch einen Ansaugschlitz (12) getrennt sind, der in einer Richtung senkrecht zur Bewegungsrichtung des genannten geradlinigen Abschitts (9) angeordnet ist.
  8. Vorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß der Abnahmezylinder (4) an seinem Umfang mit einer Anordnung aus gleichschenkligen Stegen (8) versehen ist oder über seinen gesamten Umfang Längsrillen aufweist, und zwar derart, daß eine Aufnahme des Vlieses (2) mit einer geringeren Haftung als der des Vlieses auf dem letzten Arbeitszylinder (1) gestattet ist.
  9. Karde, die am Ende mit einer Vorrichtung nach einem der Ansprüche 1 bis 8 ausgestattet ist.
  10. Karde nach Anspruch 9, dadurch gekennzeichnet, daß sie am Ende mit mindestens zwei Vorrichtungen (20, 21) versehen ist, die auf einen der Ansprüche 1 bis 8 gerichtet sind und die dazu eingerichtet sind, die Überlagerung zweier Vliese zu gestatten, die von ihren beiden Abnahmezylindern (22) herkommen.
  11. Karde nach Anspruch 10, dadurch gekennzeichnet, daß sie am Ende mit einem einzigen Bandförderer ausgestattet ist, der den beiden Vorichtungen gemeinsam ist.
  12. Karde nach Anspruch 10, dadurch gekennzeichnet, daß jede Vorrichtung ihren eigenen Bandförderer besitzt, wobei ein erster Förderer (26) ein erstes Vlies bis zum Band des zweiten Förderers (27) fördert, und zwar derart, daß dieses erste Vlies über dem Band und in Verlängerung des Bandes dieses zweiten Förderers (27) angeordnet ist, und daß der zweite Förderer (27) auf der Höhe der Verbindungszone (28) zwischen den beiden Bändern der Förderer mit Ansaugmitteln (29) ausgestattet ist, die es gestatten, das erste Vlies über das Vlies zu legen, das vom zweiten Förderer (27) gefördert wird.
EP94490055A 1994-09-30 1994-11-16 Vorrichtung zur Abnahme und zum Transportieren mit hoher Geschwindigkeit eines Faservlieses am Ende einer Karde Expired - Lifetime EP0704561B2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9411920A FR2725216B1 (fr) 1994-09-30 1994-09-30 Dispositif pour detacher et transporter a grande vitesse un voile fibreux en sortie de carde
FR9411920 1994-09-30

Publications (3)

Publication Number Publication Date
EP0704561A1 EP0704561A1 (de) 1996-04-03
EP0704561B1 true EP0704561B1 (de) 1998-04-15
EP0704561B2 EP0704561B2 (de) 2004-07-28

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Country Link
US (1) US5584101A (de)
EP (1) EP0704561B2 (de)
JP (1) JPH08209461A (de)
AT (1) ATE165125T1 (de)
DE (2) DE704561T1 (de)
DK (1) DK0704561T4 (de)
FR (1) FR2725216B1 (de)

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US6195842B1 (en) * 1995-12-08 2001-03-06 E. I. Du Pont De Nemours And Company Feeding carded fiber to an airlay
DE19630698A1 (de) * 1996-07-30 1998-02-05 Thomas Brose Pneumatische Kämmaschine
US6061876A (en) * 1997-06-11 2000-05-16 John D. Hollingsworth On Wheels, Inc. Textile recycling machine
FR2777575B1 (fr) 1998-04-17 2000-07-07 Thibeau Procede et installation pour la formation d'un voile fibreux par voie aeraulique
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FR2725216A1 (fr) 1996-04-05
EP0704561A1 (de) 1996-04-03
JPH08209461A (ja) 1996-08-13
EP0704561B2 (de) 2004-07-28
DK0704561T3 (da) 1998-06-02
ATE165125T1 (de) 1998-05-15
DE69409648T3 (de) 2005-02-17
US5584101A (en) 1996-12-17
FR2725216B1 (fr) 1996-12-20
DE704561T1 (de) 1997-06-05
DE69409648D1 (de) 1998-05-20
DK0704561T4 (da) 2004-09-06
DE69409648T2 (de) 1998-08-20

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