EP1367165A1 - Rouleau aspirant pour le traitement d'un voile de fibres textiles ou produit équivalent - Google Patents
Rouleau aspirant pour le traitement d'un voile de fibres textiles ou produit équivalent Download PDFInfo
- Publication number
- EP1367165A1 EP1367165A1 EP03291165A EP03291165A EP1367165A1 EP 1367165 A1 EP1367165 A1 EP 1367165A1 EP 03291165 A EP03291165 A EP 03291165A EP 03291165 A EP03291165 A EP 03291165A EP 1367165 A1 EP1367165 A1 EP 1367165A1
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- EP
- European Patent Office
- Prior art keywords
- suction
- roller
- roller according
- zone
- veil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
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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
- D01G25/00—Lap-forming devices not integral with machines specified above
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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)
Definitions
- the present invention relates to a suction roller for treatment a veil of textile fibers or equivalent product, if necessary, denser and / or thick like a tablecloth, a ribbon etc.
- Document FR 1,500,746 describes a suction cylinder used for entrain a veil of textile fibers then detach it, for example a veil carded at the end of the comber, or to redistribute a veil in a spreader-lapper.
- the suction cylinder described is hollow with a cylindrical wall perforated or made breathable. It has a suction sector delimited by partitions and which is put in depression. According to an example described, the suction is done via a coaxial perforated tube or not with suction at both ends, the perforations of the tube being distributed and / or of such dimensions that a uniform suction is over the entire length of the tube.
- two symmetrically mounted suction rollers are used to pick up and fold a veil in a movable exit carriage moved back and forth at above an apron for receiving the folded veil arranged perpendicularly.
- These two suction rollers are connected alternately to the means producing the suction, the veil guided between the two rollers being alternately drawn by one or the other of the rollers according to the direction of moving the moving carriage.
- Document EP 0 733 729 discloses a suction roller used for transfer a fibrous web between the conveyor belt and two calendering cylinders, thereby reducing the stretching of the web and to avoid floating problems.
- the suction cylinder is interposed on the path of the web between the conveyor belt and the two cylinders of calendering.
- the veil is pressed by suction on the surface of said cylinder and is held there by suction to a pre-calendering area located between the suction cylinder and the lower calendering cylinder.
- the suction cylinder is made for example from a perforated metal sheet. It has a suction sector delimited by partitions whose angular positioning is adjustable.
- Document FR 2 612 949 discloses a device for consolidating a textile fleece or equivalent in which the veil is passed through the slot formed by at least two juxtaposed rollers, applying pressure.
- the two rollers are hollow, their peripheral surface being perforated or screened.
- the exhaust air produced during the compression of the web can be done radially by penetrating inside the two rollers perforated.
- the perforated rollers can be subjected to the action of an aspiration.
- the authors recommend that the diameter of the perforations equal to or less than the depth of the perforations, so that the fibers are not entrained through the perforations with the escaping air veil.
- these can have a configuration which widens towards the inside of the roller and the edges of the perforations directed towards the roller preferably associated with rounded edge.
- the document EP 0 071 033 describes a sail spreader to form a nonwoven made up of several plies, using, to limit the floating of the veil, breathable transfer means: a perforated endless belt, a back and forth movable perforated turning roller transferring the veil on a second endless perforated belt placed below the first belt, two reciprocating perforated folding rollers taking up the veil after turning over on the second endless belt.
- the desired effect is press the veil on the transfer means using suction controlled throughout its journey in the mobile carriage and so that the veil remains uniform until it is removed.
- the object of the present invention is in particular to alleviate these disadvantages, by proposing a solution to obtain an efficiency of improved suction and therefore good hold of the veil without it deforms, without entanglement of the fibers, whatever their size, the roller suction with a high vacuum rate while maintaining a very good mechanical strength.
- suction roller for the treatment of a veil of fibers textiles or equivalent product if necessary denser or thicker a tablecloth, a ribbon etc., said roller being hollow connected to a source suction and having a cylindrical wall provided with suction orifices, characterized in that said suction ports open into at least a vacuum chamber formed in the cylindrical wall between zones support for the veil.
- the vacuum chambers share their function, are of dimensions larger than the orifices suction, which means that the suction surface of the roller to the right of the vacuum chambers between the support zones is increased compared to the state of the art, while retaining for the roller good mechanical strength. This advantage is important for the most applications where the suction roller is a wearing part. With a roller according to the invention, more than 90% of the surface of the product textile can be exposed to suction against less than 40% with a classic perforated roller.
- the cylindrical wall is provided with perforations which are stepped comprising a lower stage forming the suction orifice opening into an upper floor of larger dimensions (for example thanks to a conical or flared shape) forming said vacuum chamber.
- the orifices are arranged in the bottom of the grooves, a depression being created between the bottom of each groove and its two ridges neighboring, the ridges of grooves forming the support zones for the web.
- the grooves have a sectional profile substantially triangular, this conformation allowing suction on practically the entire surface of the veil.
- the suction ports can be staggered staggered between two adjacent grooves, allowing in particular to avoid the marking of lines on the veil and to confer on the roller better mechanical resistance.
- the ridges of the grooves are rounded to avoid any risk of the web catching on the roller.
- the ridges of the grooves extend perpendicular to the direction of the fibers of the web.
- the splines can thus be for example circumferential, that is to say perpendicular to the axis of revolution of the roller, axial, i.e. parallel to the axis of revolution of the roller, helical or describing two reverse propellers substantially joining in the central part of the roller. This last configuration has the additional effect of if necessary counteract a lateral stretching of the web.
- the pitch of the grooves or the spacing of the perforations, as well as the depth of grooves or perforations depend on fiber characteristics (length and denier) and shape (holes or slits) and the spacing of the suction ports depend on the intended applications and the density of the veil.
- the suction is effective only in the active area of the roller, i.e. in the area passage of the veil on the roller where the veil needs to be maintained and guided to avoid its floating. It is defined by means of deflection arranged inside the roller.
- the means of deflection can include two radial deflectors with possibly one variable angular spacing or an arcuate deflector possibly of variable arc length telescopically.
- the roller according to the invention can be produced for example from of a sheet which is punctured using appropriate means and then soda to form the roll, or by spinning, machining or foundry.
- the material is chosen according to the application, for example a light alloy aluminum which is then subjected to a surface treatment electrochemical to harden it, or a material based on carbon fibers or even steel.
- One of the common applications can to be the 90 ° change of direction of a sail substantially in a same plan with inversion of the veil or complete inversion of a veil in a mobile spreader-lapper entry carriage.
- the current invention is particularly interesting for this latter application, because in a mobile spreader-lapper entry carriage, the web is subjected not only to its own inertia due to its transport speed relative to the carriage, but also to a centrifugal force during its overturning, that make the veil really need to be checked when turnaround.
- the inversion of the web in the entry carriage is therefore one of the critical moments when the veil risks take off and deform, limiting the speed of the spreader (see in particular patent EP 0 517 563).
- the veil is correctly checked when it is turned over in the movable entry carriage of the spreader-lapper, which increases the speed of movement back and forth of the carriage without deforming the web and therefore to increase the speed of production of groundwater. Thanks to better quality of sail, also because it no longer needs to be stretched or even stretched at the entrance of the spreader-lapper, we can reduce the number of folds also increase productivity. This is particularly interesting for a condensed veil. Indeed, the invention makes it possible to coat the veil at the condensation rate adapted to compliance with the MD / CD (direction resistance machine / transverse direction) desired while maintaining the quality of the web final and increasing the productivity of the installation. In addition, thanks to the invention, it was found that the control of fiber-based sails short and volatile like viscose, was possible, allowing in some cases triple the production of the spreader-lapper.
- roller suction device for example knitted or a sheet thin perforated, the roller providing the bearing mechanical structure.
- the suction according to the invention can moreover have an effect additional consolidation on the veil causing compression or even the intertwining of fibers.
- the tablecloth may be thinner than in the prior art, which facilitates entry into a subsequent machine, for example a needling machine.
- the consolidation of the veil also has the very advantageous effect of reducing the machine cleaning frequency since fibers are better held in the veil or the tablecloth and do not scatter in the machine.
- Figure 1 shows schematically and partly an example of spreader-lapper of the state of the art in which a transfer takes place of sail between two full rugs.
- Veil 1 continuously arrives on a carpet full of endless arrival 2, then in a back and forth mobile entry cart 3 where it makes a U-turn and is then taken up by a full carpet endless receiver 4 continuously fed into said carriage 3 with a direction opposite to the direction of arrival of the full belt 2.
- the veil 1 is pinched between the two solid belts 2 and 4.
- the input trolley 3 has the function of rendering compatible, by varying the length of the pinch zone P, the arrival continuous veil on the first mat 2 with the unwinding of the veil at the exit of the exit carriage 5, the reeling varying according to the position of the carriage outlet 5 and the opposite direction or no advance of the carriage 5 relative to the direction of advance of the veil on the carpet 2.
- the mat full 2 is guided by two guide rollers 7 and 8 carried by the carriage mobile 2 defining an inclined section 9 so that the web 1 transported by this mat then performs around the second roller 8 a turn that is less than 180 °.
- the path of the second full carpet 4 is defined by four rolls of guide 10, 11, 12 and 13 carried by the input carriage 2 and arranged firstly that a pinch line 14 is formed between the guide roller 8 of the first belt 2 around which the web 1 performs its turn and one of the guide rollers (11 in Figure 1) of the second carpet 4 and, on the other hand, that the second carpet 4 is brought near the roller 8 to resume the veil 1 at its exit.
- FIG 2 there is shown a transfer device between two solid mats applied to a mobile spreader-lapper entry trolley capable of replace the carriage 3 described above (the same references are used below for the elements common to the two figures).
- the first carpet full 2 turns around three guide rollers driven in the same direction: an upper roller 20, a roller intermediate 21 and a lower roller 22.
- the intermediate roller 21 is placed so as to define in section a sharp turn for the carpet 2 with an inclined portion 23 before the roller 21 and an inclined portion 24 after the roller 21.
- the second full belt 4 is guided for its part in the carriage movable 3 by three guide rollers: the belt is guided in "S" around of an upper roller 41, then around an intermediate roller 42 driven in reverse, then a lower roller 43 bringing the carpet 4 at the appropriate level in relation to the full carpet 2 to achieve the pinch P defined between the two mobile input and output carriages. All guide rollers are fixed to the carriage frame and driven automatically in rotation with the movement of the corresponding mat.
- the transfer device comprises a suction roller 31 which is fixed to the chassis of the carriage 3 and positioned in front of the inclined portion 24 at a minimum distance from the belt 2.
- the diameter of the roller 31 and its position are also preferably chosen so that the transfer of the veil 1 around the periphery of the suction roller is made substantially tangentially and minimizing the vacuum distance d between the intermediate roller 21 and the transfer roller 31 and also so that the web of the roller 31 is transferred then as closely as possible in the plane of the second full mat 4.
- the rotation of the suction roller 31 is ensured by means of a coupling 44 with the guide roller 42 of the second solid belt 4, this last being thanks to the configuration in "S" driven in the direction adequate rotation so that the web 1 and the solid carpet 4 arrive in the same direction after turning the veil and especially advantageously at the same speed.
- the solid belt 4 can act as a barrier compression or depression due to displacement of the trolley; this can be recommended in extreme speed cases.
- the cylindrical wall of the roller 31 is permeable to air and laterally connected to a controlled suction source to maintain the veil during its inversion.
- the means used to supply the suction roller 31 with a movable suction may include a on-board fan, or a flexible or telescopic hose system connected to a fixed fan, or a connection nozzle connected to a suction manifold.
- the connection to the means suction is carried out by each end of the roller.
- Means of deflection shown diagrammatically by the arcuate deflector 46 make it possible to define a effective suction area in the curvature carried out by the veil.
- Figure 3 shows an alternative embodiment according to which, the web 1 is transferred not directly to the suction roller 31 but to a small endless perforated mat 50 mounted around the suction roller 31 and two guide rollers 51 and 52 arranged opposite the belt portion full inclined 23 in the vicinity respectively of the guide rollers 21 and 22.
- This construction limits the void areas between the roller suction 31 and the carpet 2 in which the veil is not controlled.
- Figure 4 shows another alternative embodiment still in which one uses a configuration in "S" for the solid carpet 2 with the arrangement of an additional guide roller 53 in a plane in rear of the two guide rollers 21 and 22, which allows these two guide rollers 21 and 22 to be approached as close as possible to the roller sucking 31 and therefore reducing the empty spaces between the carpet 2 and the roller 31.
- a variant is also shown a substantially straight arrival of the carpet 4 guided in the mobile carriage 3 by at minus a guide roller 54.
- a variant is also shown straight arrival of the belt 2 with the removal of the inclined portion 23.
- Figure 5 shows yet another alternative embodiment of the carriage input 3 spreader-lapper using a second roller suction 60 according to the invention placed above the web 1, before its reversal, between the belt 2 and the roller 31, to further control the veil in the corresponding vacuum area between them.
- the belt 2 is guided around a first guide roller 61 and a second guide roller 62, between which a portion is defined of inclined carpet 63 so that carpet 2 then turns onto the roller 62 for turning less than 180 °.
- This inclined portion allows also transfer over a larger angular extent of suction of the upper suction roller 60.
- the transfer of the suction roller 60 to the turning roller 31 is effected by the relative positioning of the active suction zones.
- Belt 4 is guided opposite the rollers suction 60 and 31 around two upper guide rollers 64 and lower 65 so as to describe a path in "S".
- this configuration makes it possible to couple the guide roller 64 and the roller suction 60 and the guide roller 65 and the suction roller 31 for the train jointly.
- This configuration with the inclined plane 63, allows to place the two belts 2 and 4 at substantially the same level, as well as the top of roller 63. This avoids ventilation due to displacement back and forth of the carriage.
- FIGS 6 to 13 describe the suction roller according to the invention.
- a suction roller 100 is hollow having a wall cylindrical provided on its outer surface with grooves 102 here axial extending over the length of the roll and two opposite ends 100A, 100B.
- Each groove 102 can be defined by a crest 103 framed by two bottoms 104, each bottom 104 being made permeable to air thanks to suction orifices 105 of shape and density adapted according to the targeted applications, the suction force being a function of the density of the web or equivalent product in contact with the suction roller.
- a perforated axial tube 106 is formed inside the roller 100 protruding on either side of its ends 100A, 100B, the ends of the tube 106 being connected in a manner known per se to a source external suction.
- the roller 100 is adapted to be driven in rotation relative to tube 106 along an axis A of rotation by means of bearings with suitable ball R
- the effective suction zone (107 in figure 6), at the entrance 109 from which a veil of fibers 108 is supported by the roller 100 and at the outlet 110 from which the veil is released, is delimited here by two radial deflectors 111A and 111B which are connected to the axial tube 106.
- deflectors can advantageously be provided with means for adjustment of their spacing (illustrated by arrows F) so that adjust the angular extent of the suction area 107.
- the tube 106 is perforated on the side only of the suction zone 107.
- the blanks 110A, 110B facing one another of neighboring grooves 102 move away from the common bottom 104 towards the outside of the roller, so that when the interior of the roller is depressed, a depression C is formed between the bottom 104 of the grooves and the two ridges neighbors offering a suction surface between two ridges 103 enlarged by relative to the outlet section of the orifice 105 and offset relative thereto.
- the suction power is adjusted, in particular according to the speed scroll 108, so that it is maintained and guided on the ridges of grooves 103 thanks to the vacuum chamber C.
- the air present in the web 108 is sucked radially if necessary inside of the roller through the orifices 105 (shown diagrammatically by the arrows F2). Thanks to the presence of the vacuum chamber C, the fibers of the web are thus not not in contact with the orifices 105 and are unlikely to clog them.
- a triangular cross-section of the grooves as in Figures 7 and 8 advantageously makes it possible to further increase the suction surface of the depression chambers C and therefore to draw the veil over practically any its surface while retaining good mechanical strength for the roller.
- the ridges 103 of the grooves are advantageously rounded as also shown in Figures 7 and 8.
- the bottom 104 of the grooves is enlarged with respect to the ridges 103 of the grooves to be able to increase the size of the orifices 105 and thus the force suction.
- the orifices 105 which are provided aligned from one bottom flute 104 to another in Figure 8, but which could also be staggered from a groove bottom to a other.
- the shape of the orifices 105 can also vary, either so homogeneous over the length of the roll, or inhomogeneous to create an effect desired aspiration, such as homogenization or concentration.
- the cross section of the grooves can be trapezoidal, with the short side of the trapezoid corresponding to the groove crest, so that enlarge the bearing surfaces of the veil if necessary.
- roller aspirating For an application of the roller aspirating to the inversion of a veil in a spreader-lapper, the following values can be given as purely indicative: a roll diameter of the order of one or more hundreds of mm and a depth and a groove pitch of the order of a few mm.
- FIGS. 10 and 11 a second mode of drawing has been shown schematically.
- realization of the perforated cylindrical wall according to the invention instead of grooves, 200 circular and two-stage perforations are formed in the cylindrical wall, comprising a lower stage constituted by a suction port 205 opening into an upper stage of dimensions larger than the orifice 205 forming the vacuum chamber C.
- Support zones 203 for a veil are thus provided on the surface of the wall between the perforations 200, said support zones being more or smaller according to the spacing of the perforations.
- the shape of the room of depression C can be conical or substantially parallelepiped as shown in Figure 11, with a suction port in its background.
- Figures 12 and 13 show two alternative embodiments deflection means.
- it is an arcuate deflector 115 in two parts 115A, 115B whose end portions are telescopically stackable to adjust the angular extent of deflection.
- This design has the advantage of allowing adjustment of the angle of support of the veil by the suction roller and thus to cover multiple mounting configurations with the same roller design.
- the same adjustable suction roller can be used to transfer a veil between a card and a lapper whatever the angle formed between the incoming carpet and the outgoing carpet.
- this is a tube 116 inserted inside the suction roller 100 and comprising a arcuate wall area 116A breathable and an arcuate area of deflection 116B having a radius of curvature greater than that of the permeable wall zone 116A for blocking the suction ports 105 of the roller, the two zones 116A and 116B being connected by radial walls 117 and 118.
- This creates a homogeneous depression pre-chamber 119 between the deflector 116A and the roller 100.
- the deflector 116A then ensures a diffuser function so as to homogenize the depression in this pre-chamber along the entire length of the suction roller.
- FIG 14 illustrates another possible application for transfer of sail using a suction roller according to the invention.
- the transfer device is used to deposit a second web 80 on a first veil 81 at the entry of a spreader-lapper in order to form an exit double veil.
- the first veil is brought to a first full carpet 82.
- the second veil is brought on a second full carpet 83 moved according to the same direction as the carpet 82 but in a plane located above.
- the carpet 83 is guided on an inclined portion 86 defined between two upper guide rollers 87 and 88 and a lower guide roller 89 located in a closer plane of the carpet 82 and around which the carpet 83 makes a reversal for start in the opposite direction.
- Controlled transfer of the veil onto the carpet 82 is carried out using a suction roller 90 according to the invention, placed above of the web 80 so that the latter is held by suction before to be placed on the veil 81.
- FIG. 15 illustrates another possible application according to the invention.
- the suction roller is used to turn over of sail to apply a 90 ° change of direction to the sail substantially in the same plane.
- a veil 91 arrives on a first carpet full 92 which makes a U-turn using an oblique guide roller 93.
- a suction roller 94 according to the invention is placed near the roller 93 to resume the veil 91. The latter is then taken care of by the suction roller 94, follows a curvature corresponding to a reversal to find themselves substantially in the same plane, the position of the roller suction 94 defining the direction in which the veil 91 leaves on the second full conveyor belt 95.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
Description
- pour le transfert :
- entre peigneur et tapis de sortie de carde,
- avec retournement entre tapis perforés supérieur et inférieur notamment dans un étaleur/nappeur,
- entre tapis de carde et rouleau de calandrage,
- entre tapis de sortie de carde et tapis plein d'entrée d'étaleur-nappeur,
- entre les tapis inférieur et supérieur d'une carde double peigneur,
- comme rouleau aspirant :
- de pliage dans un chariot mobile de sortie d'étaleur/nappeur,
- de consolidation.
- la figure 1 est une vue partielle en coupe en élévation illustrant un étaleur-nappeur de l'état de la technique auquel on peut appliquer la présente invention ;
- la figure 2 est une vue en coupe montrant un premier exemple de chariot mobile d'entrée d'étaleur-nappeur utilisant un rouleau aspirant selon de l'invention ;
- les figures 3, 4 et 5 sont similaires à la figure 2 montrant chacunes une variante de réalisation du chariot;
- la figure 6 est une vue en coupe d'un exemple de réalisation d'un rouleau aspirant cannelé selon l'invention ;
- la figure 7 est une vue de détail agrandi de la figure 6 ;
- la figure 8 est une vue partielle schématique en perspective du rouleau des figures 6 et 7 ;
- la figure 9 est une vue en coupe longitudinale du rouleau des figures 6-8 avec un arrachement local montrant les moyens d'homogénéisation de l'aspiration ;
- la figure 10 est une vue partielle du dessus d'une paroi cylindrique à perforations étagées selon un autre exemple de réalisation de l'invention ;
- la figure 11 est une vue en coupe selon ligne XI-XI de la figure 10 illustrant une variante de forme pour les chambres de dépression ;
- les figures 12 et 13 sont des vues en coupe schématique d'un rouleau aspirant selon l'invention illustrant chacune une variante de réalisation des moyens de déflection ;
- la figure 14 est une vue en perspective illustrant un autre exemple d'application de l'invention dans lequel deux voiles sont superposés en entrée d'étaleur-nappeur ; et
- la figure 15 est une vue de dessus illustrant un autre exemple d'application encore de l'invention dans lequel on fait effectuer un changement de direction à 90° à un voile avec retournement.
Claims (25)
- Rouleau aspirant (100 ; 31 ; 60 ; 90 ; 94) pour le traitement d'un voile (108 ; 1 ; 80 ; 91) de fibres textiles ou produit équivalent le cas échéant plus dense ou épais comme une nappe, un ruban etc., ledit rouleau étant creux relié à une source d'aspiration et présentant une paroi cylindrique munie d'orifices d'aspiration, caractérisé en ce que lesdits orifices d'aspiration (105, 205) débouchent dans au moins une chambre de dépression (C) formée dans la paroi cylindrique entre des zones d'appui (103, 203) pour le voile.
- Rouleau selon la revendication 1, caractérisé en ce que la chambre de dépression (C) présente une forme conique.
- Rouleau selon la revendication 1, caractérisé en ce que les orifices d'aspiration (105) sont disposés dans le fond (104) de cannelures (102), la chambre de dépression (C) étant créée entre le fond (104) de chaque cannelure (102) et ses deux crêtes voisines (103), les crêtes de cannelures formant les zones d'appui pour le voile.
- Rouleau selon la revendication 3, caractérisé en ce que les cannelures (102) présentent un profil en coupe sensiblement triangulaire.
- Rouleau selon la revendication 3 ou 4, caractérisé en ce que la crête (103) des cannelures (102) est arrondie.
- Rouleau selon la revendication 5, caractérisé en ce que les cannelures (102) ont un profil en coupe trapézoïdal, le petit côté du trapèze correspondant à la crête (103) de cannelure.
- Rouleau selon l'une quelconque des revendications précédentes, caractérisé en ce que le fond (104) des cannelures est élargi par rapport aux crêtes (103).
- Rouleau selon l'une quelconque des revendications 3 à 7, caractérisé en ce que les orifices d'aspiration (105) sont décalés en quinconce entre deux cannelures voisines.
- Rouleau selon l'une quelconque des revendications 3 à 8, caractérisé en ce que les cannelures (102) sont circonférentielles, perpendiculaires à l'axe de révolution du rouleau.
- Rouleau selon l'une quelconque des revendications 3 à 8, caractérisé en ce que les cannelures (102) sont axiales, parallèles à l'axe de révolution du rouleau.
- Rouleau selon l'une quelconque des revendications 3 à 8, caractérisé en ce que les cannelures (102) sont hélicoïdales.
- Rouleau selon l'une quelconque des revendications 3 à 8, caractérisé en ce que les cannelures (102) décrivent deux hélices inverses.
- Rouleau selon la revendication 12, caractérisé en ce que les hélices se rejoignent sensiblement dans la partie centrale du rouleau.
- Rouleau selon l'une quelconque des revendications précédentes, caractérisé par une zone d'aspiration (107) définie par des moyens de déflection (111A ; 111B ; 116B ; 115 ; 46) disposés à l'intérieur du rouleau.
- Rouleau selon la revendication précédente, caractérisé par des moyens de réglage de l'étendue angulaire de la zone d'aspiration.
- Rouleau selon la revendication 14 ou 15, caractérisé par des moyens de concentration de l'aspiration pour créer une aspiration progressivement plus importante dans une zone d'étendue angulaire de la zone d'aspiration.
- Rouleau selon la revendication 16, caractérisé en ce que la zone d'étendue angulaire correspond sensiblement à l'endroit où la force centrifuge est la plus grande.
- Rouleau selon l'une des revendications 14 à 17, caractérisé en ce que les moyens de déflection comprennent deux déflecteurs radiaux (111A ; 111B).
- Rouleau selon la revendication 18, caractérisé en ce que les moyens de réglage de l'étendue angulaire de la zone d'aspiration comprennent des moyens de réglage de l'écartement angulaire des deux déflecteurs radiaux.
- Rouleau selon l'une des revendications 14 à 17, caractérisé en ce que les moyens de déflection comprennent un déflecteur arqué (115 ; 116B).
- Rouleau selon la revendication 20, caractérisé en ce que le déflecteur arqué (115) possède une longueur d'arc variable télescopiquement.
- Rouleau selon l'une des revendications 14 à 17, caractérisé en ce les moyens de déflection comprennent un tube (116) disposé à l'intérieur du rouleau (100) et comprenant une zone (116A) perméable à l'air et une zone (116B) formant déflecteur, les moyens d'aspiration étant mis en communication avec l'intérieur dudit tube.
- Rouleau selon la revendication 22, caractérisé en ce que l'aspiration se faisant sensiblement selon l'axe du rouleau par les extrémités du rouleau, la zone (116A) perméable à l'air du tube est constituée de perforations dont la taille et/ou la densité varie progressivement de manière à créer une aspiration homogène sur toute la longueur de la zone perméable.
- Rouleau selon la revendication 22 ou 23, caractérisé en ce que la zone (116A) perméable à l'air présente un rayon de courbure plus petit que le rayon de courbure de la zone (116B) formant déflecteur, de manière à créer une pré-chambre d'homogénéisation entre la paroi cylindrique du rouleau et la zone perméable (116A).
- Rouleau selon l'une des revendications 22 à 24, caractérisé en ce que les moyens pour créer une aspiration progressivement plus importante dans une partie d'étendue angulaire de la zone d'aspiration comprennent des perforations dans cette partie de taille et/ou de densité plus grande, de préférence progressivement, par rapport au reste de la zone perméable.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0206468A FR2840325B1 (fr) | 2002-05-28 | 2002-05-28 | Rouleau aspirant pour le traitement d'un voile de fibres textiles ou produit equivalent |
FR0206468 | 2002-05-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1367165A1 true EP1367165A1 (fr) | 2003-12-03 |
EP1367165B1 EP1367165B1 (fr) | 2009-08-26 |
Family
ID=29415126
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03291165A Expired - Lifetime EP1367165B1 (fr) | 2002-05-28 | 2003-05-20 | Rouleau aspirant pour le traitement d'un voile de fibres textiles ou produit équivalent |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1367165B1 (fr) |
AT (1) | ATE440988T1 (fr) |
DE (1) | DE60328942D1 (fr) |
FR (1) | FR2840325B1 (fr) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100815990B1 (ko) | 2006-12-18 | 2008-03-24 | 이규환 | 섬유원단가공용 회전식 진공흡입롤러 |
EP3168337A1 (fr) * | 2015-11-10 | 2017-05-17 | Oskar Dilo Maschinenfabrik KG | Dispositif destine au transport guide d'une bande de voile |
US20210394466A1 (en) * | 2020-06-23 | 2021-12-23 | The Boeing Company | Automated Removal Apparatus, System, and Method for Selectively Removing Trimmed Portions of a Laminated Ply in a Ply-by-Ply Fabrication Process |
CN114435665A (zh) * | 2021-12-31 | 2022-05-06 | 山东宏业纺织股份有限公司 | 一种梳棉打包一体的加工装置 |
CN115990570A (zh) * | 2023-03-16 | 2023-04-21 | 宁德时代新能源科技股份有限公司 | 气浮辊及极片涂布装置 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3616007A (en) * | 1969-02-28 | 1971-10-26 | Kimberly Clark Co | Method for controlling and transferring crosslaid sheets |
US4809404A (en) * | 1987-03-28 | 1989-03-07 | Hergeth Hollingsworth Gmbh | Apparatus for compacting a nonwoven fabric, etc. |
US6050469A (en) * | 1995-03-22 | 2000-04-18 | Thibeau Et Cie | Suction cylinder which transfers fiber web from a conveyer belt to two calendering cylinders |
-
2002
- 2002-05-28 FR FR0206468A patent/FR2840325B1/fr not_active Expired - Fee Related
-
2003
- 2003-05-20 DE DE60328942T patent/DE60328942D1/de not_active Expired - Lifetime
- 2003-05-20 EP EP03291165A patent/EP1367165B1/fr not_active Expired - Lifetime
- 2003-05-20 AT AT03291165T patent/ATE440988T1/de not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3616007A (en) * | 1969-02-28 | 1971-10-26 | Kimberly Clark Co | Method for controlling and transferring crosslaid sheets |
US4809404A (en) * | 1987-03-28 | 1989-03-07 | Hergeth Hollingsworth Gmbh | Apparatus for compacting a nonwoven fabric, etc. |
US6050469A (en) * | 1995-03-22 | 2000-04-18 | Thibeau Et Cie | Suction cylinder which transfers fiber web from a conveyer belt to two calendering cylinders |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100815990B1 (ko) | 2006-12-18 | 2008-03-24 | 이규환 | 섬유원단가공용 회전식 진공흡입롤러 |
EP3168337A1 (fr) * | 2015-11-10 | 2017-05-17 | Oskar Dilo Maschinenfabrik KG | Dispositif destine au transport guide d'une bande de voile |
CN106939449A (zh) * | 2015-11-10 | 2017-07-11 | 奥斯卡迪罗机械制造公司 | 用于网棉的引导传输的装置 |
US9751696B2 (en) | 2015-11-10 | 2017-09-05 | Oskar Dilo Maschinenfabrik Kg | Device for a guided transport of a card web |
CN106939449B (zh) * | 2015-11-10 | 2019-06-14 | 奥斯卡迪罗机械制造公司 | 用于网棉的引导传输的装置 |
US20210394466A1 (en) * | 2020-06-23 | 2021-12-23 | The Boeing Company | Automated Removal Apparatus, System, and Method for Selectively Removing Trimmed Portions of a Laminated Ply in a Ply-by-Ply Fabrication Process |
US11919261B2 (en) * | 2020-06-23 | 2024-03-05 | The Boeing Company | Automated removal apparatus, system, and method for selectively removing trimmed portions of a laminated ply in a ply-by-ply fabrication process |
CN114435665A (zh) * | 2021-12-31 | 2022-05-06 | 山东宏业纺织股份有限公司 | 一种梳棉打包一体的加工装置 |
CN114435665B (zh) * | 2021-12-31 | 2024-03-12 | 山东宏业纺织股份有限公司 | 一种梳棉打包一体的加工装置 |
CN115990570A (zh) * | 2023-03-16 | 2023-04-21 | 宁德时代新能源科技股份有限公司 | 气浮辊及极片涂布装置 |
CN115990570B (zh) * | 2023-03-16 | 2023-08-04 | 宁德时代新能源科技股份有限公司 | 气浮辊及极片涂布装置 |
Also Published As
Publication number | Publication date |
---|---|
ATE440988T1 (de) | 2009-09-15 |
FR2840325B1 (fr) | 2004-07-30 |
DE60328942D1 (de) | 2009-10-08 |
FR2840325A1 (fr) | 2003-12-05 |
EP1367165B1 (fr) | 2009-08-26 |
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