EP1367165B1 - Saugwalze zur Behandlung eines textilen Faserbandes oder vergleichbares Produkt - Google Patents

Saugwalze zur Behandlung eines textilen Faserbandes oder vergleichbares Produkt Download PDF

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Publication number
EP1367165B1
EP1367165B1 EP03291165A EP03291165A EP1367165B1 EP 1367165 B1 EP1367165 B1 EP 1367165B1 EP 03291165 A EP03291165 A EP 03291165A EP 03291165 A EP03291165 A EP 03291165A EP 1367165 B1 EP1367165 B1 EP 1367165B1
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EP
European Patent Office
Prior art keywords
suction
roller
roller according
zone
web
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EP03291165A
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English (en)
French (fr)
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EP1367165A1 (de
Inventor
François LOUIS
Bernard Chatelet
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Asselin Thibeau SAS
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Asselin Thibeau SAS
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Classifications

    • 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
    • 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
    • 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 roll for treating a web of textile fibers or equivalent product where appropriate denser and / or thick as a web, a ribbon etc.
  • the document FR 1,500,746 discloses a suction cylinder used to drive a web of textile fibers and detach it, for example a carded web out of doffer, or to redistribute a web in a spreader-lapper.
  • the suction cylinder described is hollow with a perforated cylindrical wall or made permeable to air. It has a suction sector delimited by partitions and which is put in depression. According to one example described, the suction is done via a perforated tube coaxial or not with suction at both ends, the perforations of the tube being distributed and / or of dimensions such that uniform suction is ensured on any the length of the tube.
  • two symmetrically mounted suction rollers serve to take up and fold a web in a movable exit carriage moved back and forth over a veil receiving apron. folded arranged perpendicularly.
  • These two suction rollers are connected alternately to the means producing the suction, the web guided between the two rollers being alternately sucked by one or other of the rollers in the direction of movement of the movable carriage.
  • the document EP 0 733 729 discloses a suction roll used to transfer a fibrous web between a conveyor belt and two calendering rolls at the outlet of the card, thereby reducing the stretching of the web and avoiding floating problems.
  • the suction cylinder is interposed on the course of the sail between the conveyor belt and the two cylinders of calendering. At the suction cylinder, the web is sucked to the surface of said cylinder and is maintained by suction to a pre-calendering zone between the suction cylinder and the lower calender roll.
  • the suction cylinder is made for example from a perforated metal sheet. It comprises a suction sector delimited by partitions whose angular positioning is adjustable.
  • the document FR 2,612,949 discloses a device for consolidating a textile web or equivalent in which the web is passed through the slot formed by at least two juxtaposed rollers, applying a pressure.
  • the two rollers are hollow, their peripheral surface being perforated or screened.
  • the escape of the air produced during the compression of the web can be done radially by penetrating inside the two perforated rollers.
  • the perforated rollers can be subjected to the action of a suction.
  • the authors advocate that the diameter of the perforations be equal to or less than the depth of the perforations, so that the fibers are not driven through the perforations with the air escaping from the veil.
  • they may have an enlarged configuration towards the inside of the roll and the edges of the perforations directed towards the associated roller, preferably with a rounded edge.
  • the document EP 0 071 033 discloses a sail spreader for forming a multi-ply nonwoven fabric, using, to limit the floating of the web, air-permeable transfer means: a perforated endless belt, a movable perforated roll-over roller, and and-forth transferring the veil to a second perforated endless belt placed below the first mat, two perforated folding rollers movable back and forth taking up the veil after turning on the second endless belt.
  • the desired effect is to press the veil on the transfer means using a suction controlled throughout its path in the mobile carriage and so that the veil remains homogeneous until it is deposited.
  • the present invention aims in particular to overcome these disadvantages, by proposing a solution to obtain an improved suction efficiency and thus a good hold of the veil without it being deformed, without attachment of the fibers, whatever their size, the suction roll having a high vacuum level while maintaining a very good mechanical strength.
  • a suction roll for the treatment of a veil of textile fibers or equivalent product where appropriate denser or thicker such as a sheet, a ribbon etc., said roll being hollow connected to a suction source and having a cylindrical wall provided with suction orifices, characterized in that said suction orifices open into at least one vacuum chamber formed in the cylindrical wall between support zones for the web.
  • the air present in the textile web is effectively sucked radially towards the inside of the roll but the web remains guided on the support zones without being in contact with the orifices. suction.
  • the vacuum chambers due to their function, are larger in size than the suction ports, which has the consequence 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 a good mechanical strength for the roll. This advantage is important for most applications where the suction roll is a wear part. With a roll according to the invention, more than 90% of the surface of the textile product can be exposed to suction against less than 40% with a conventional perforated roll.
  • the cylindrical wall is provided with perforations which are staggered and comprise a lower stage forming the suction orifice opening into a larger-sized upper stage. (For example due to a conical or flared shape) forming said vacuum chamber.
  • the suction orifices are arranged in the bottom of grooves, a vacuum chamber being created between the bottom of each groove and its two adjacent ridges, the ridges of grooves forming the bearing zones for the veil.
  • the grooves have a substantially triangular cross-sectional profile, this conformation permitting suction over substantially the entire surface of the web.
  • the suction ports can be offset in staggered between two adjacent grooves, this in particular to avoid the marking of lines on the web and to give the roll a better mechanical strength.
  • the ridges of the grooves are rounded to avoid any risk of attachment of the web on the roll.
  • the ridges of the flutes extend perpendicular to the direction of the fibers of the web.
  • the grooves may thus be for example circumferential, that is to say, perpendicular to the axis of revolution of the roll, axial, that is to say parallel to the axis of revolution of the roll, helical or describing two propellers inverses substantially meeting in the central portion of the roll. This last configuration has the additional effect of counteracting if necessary a lateral stretching of the veil.
  • the pitch of the splines or the spacing of the perforations, as well as the depth of the splines or perforations depend on the characteristics of the fibers (length and denier) and the shape (holes or slots) and the spacing of the suction orifices depend on the applications targeted and the density of the veil.
  • the suction is effective only in the active zone of the roll, that is to say in the passage area of the web on the roller where the sail needs to be maintained and guided to avoid its floating. It is defined by deflection means disposed within the roller.
  • the deflection means may comprise two radial deflectors optionally with a variable angular spacing or an optionally arcuate bent deflector telescopically variable length. It is also possible to use a tube inserted inside the suction roll and comprising an air permeable zone and an impervious deflector zone, the suction means being placed in communication with the inside of said tube.
  • the roller according to the invention can be manufactured for example from a sheet which is perforated using appropriate means, then welded to form the roll, or by spinning, machining or foundry.
  • the material is chosen according to the application, for example a light alloy of aluminum which is then subjected to an electrochemical surface treatment to harden it, or a material based on carbon fibers or steel.
  • the change of direction of a web may be the position of the suction roller (generatrix of the curvature perpendicular or oblique with respect to the direction of arrival of the web on the first belt) and the direction of advance of the receiving belt, defining the direction taken then by the sail taken up by the receiving belt.
  • One of the common applications may be the 90 ° change of direction of a web substantially in the same plane with flipping of the sail or the complete reversal of a sail in a mobile spreader-entry input carriage.
  • the present invention is particularly interesting for this latter application, because in a mobile spreader-entry sled, the web is subjected not only to its own inertia due to its transport speed relative to the carriage, but also to a force centrifugal during its reversal, which make the veil really needs to be controlled during its turnaround.
  • the reversal of the web in the input carriage is therefore one of the critical moments where the web may peel and deform, limiting the speed of the spreader (see in particular the EP 0 517 563 ).
  • the veil is correctly controlled when it is turned over in the mobile entry carriage of the crosslapper, which makes it possible to increase the speed of movement back and forth of the trolley without deforming the veil and thus increasing the speed of tablecloth production. Thanks to a better sail quality, also because it no longer needs to be stretched or stretched at the entry of the spreader-lapper, it is possible to reduce the number of folds of the sheet and also to increase the productivity .
  • This is particularly interesting for a condensed web.
  • the invention makes it possible to coat the web with the condensation rate adapted to respect the MD / CD (machine direction resistance / transverse direction) desired while maintaining the quality of the final web and increasing the productivity of the installation. Furthermore, thanks to the invention, it was found that the control of sails based on short and volatile fibers such as viscose, was possible, allowing in some cases to triple the production of the crosslapper.
  • the suction according to the invention may also have an additional effect of consolidation on the web by causing the packing or even the interlacing of fibers.
  • the web may be less thick than in the state of the art, which facilitates entry into a next machine, for example in a needling machine.
  • the consolidation of the haze also has the very advantageous effect of reducing the frequency of cleaning machines since the fibers are better held in the web or the web and do not scatter in the machine.
  • the figure 1 shows schematically and in part an example of spreader-launcher of the state of the art in which there is a transfer of web between two solid mats.
  • the veil 1 arrives continuously on a carpet full of endless arrival 2, then, in a movable entrance trolley back and forth 3 where it performs a half-turn to be taken again by a carpet full receiver without end 4 continuously fed into said carriage 3 with a direction opposite to the arrival direction of the solid carpet 2.
  • the web 1 is clamped between the two solid mats 2 and 4.
  • the function of the input carriage 3 is to make the continuous arrival of the web on the first web 2 compatible with the unwinding of the web at the output of the exit trolley 5, by varying the length of the niping zone P. , unwinding varying according to the position of the output carriage 5 and the opposite direction or no advance of the carriage 5 relative to the advancing direction of the web on the carpet 2.
  • the solid carpet 2 is guided by two guide rollers 7 and 8 carried by the mobile carriage 2 defining an inclined section 9 so that the web 1 carried by this carpet then performs around the second roller 8 a turn that is less than 180 °.
  • the path of the second solid carpet 4 is for its part defined by four guide rollers 10, 11, 12 and 13 carried by the input carriage 2 and arranged so that, on the one hand, a pinch line 14 is formed between the guide roller 8 of the first belt 2 around which the web 1 makes its turn and one of the guide rollers (11 on the figure 1 ) of the second belt 4 and, secondly, that the second belt 4 is brought near the roller 8 to resume the web 1 at its output.
  • FIG. 2 there is shown a transfer device between two solid mats applied to a movable plow-lapper inlet carriage that can replace the carriage 3 described above (the same references are used hereinafter for the elements common to the two figures) .
  • the first solid carpet 2 reverses around three guide rollers driven in the same direction: an upper roll 20, an intermediate roll 21 and a lower roll 22.
  • the intermediate roll 21 is placed so as to define a cross section in turn. point for the belt 2 with an inclined portion 23 before the roller 21 and an inclined portion 24 after the roller 21.
  • the second solid carpet 4 is guided for its part in the movable carriage 3 by three guide rollers: the belt is guided in "S" around an upper roll 41, then around an intermediate roll 42 driven in the opposite direction, then a lower roll 43 bringing the belt 4 at the appropriate level relative to the solid carpet 2 to achieve the pinching zone P defined between the two mobile entry and exit carriages. All guide rollers are attached to the carriage frame and automatically rotated with the movement of the corresponding belt.
  • the transfer device comprises a suction roll 31 which is fixed to the frame of the carriage 3 and positioned in front of the inclined portion 24 at a Minimum distance of the belt 2.
  • the diameter of the roller 31 and its position are also preferably chosen so that the transfer of the web 1 around the periphery of the suction roller is substantially tangential and minimizing the empty distance d between the intermediate roller 21 and the transfer roller 31 and also that the transfer of the web of the roller 31 is then made closer in the plane of the second solid carpet 4.
  • the rotation of the suction roller 31 is provided through a coupling 44 with the guide roller 42 of the second solid carpet 4, the latter being due to the configuration "S" driven in the appropriate direction of rotation so that the web 1 and the solid carpet 4 arrive in the same direction after the reversal of the sail and especially advantageously at the same speed.
  • the solid carpet 4 can block the phenomena of compression or depression due to the displacement of the carriage; this can be recommended in extreme cases of speed.
  • 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 overturning.
  • the means used to feed the suction roller 31 with a mobile suction may comprise an on-board fan, or a flexible or telescopic pipe system connected to a fixed fan, or a connection nozzle connected to a suction manifold.
  • the connection to the suction means is effected by each end of the roll.
  • Deflection means schematically represented by the arcuate deflector 46 make it possible to define an effective suction zone in the curvature effected by the web.
  • the figure 3 shows an alternative embodiment according to which, the web 1 is transferred not directly to the suction roll 31 but on a small endless perforated belt 50 mounted around the suction roller 31 and two guide rollers 51 and 52 arranged opposite the portion of carpet full inclined 23 near respectively the guide rollers 21 and 22.
  • This construction limits the vacuum zones between the suction roller 31 and the carpet 2 in which the web is not controlled.
  • the figure 4 shows yet another alternative embodiment in which an "S" configuration is used for the solid carpet 2 with the provision of an additional guide roller 53 in a plane behind the two guide rollers 21 and 22, which allows these two guide rollers 21 and 22 to be brought closer to the suction roller 31 and thus to reduce the empty spaces between the belt 2 and the roller 31.
  • a substantially straight inlet of the conveyor belt 4 guided in the movable carriage 3 by at least one guide roller 54 is alternatively represented.
  • a straight inlet of the conveyor belt 2 is obtained with the removal of the inclined portion 23.
  • the figure 5 shows another variant of embodiment of the staple-lapper entry trolley 3 implementing a second suction roll 60 according to the invention placed above the web 1, before it is turned over, between the belt 2 and the roller 31 , to further control the web in the corresponding vacuum zone between them.
  • the belt 2 is guided around a first guide roller 61 and a second guide roller 62, between which is defined an inclined belt portion 63 so that the belt 2 then turns on the roll 62 of turning less than 180 °.
  • This inclined portion also allows a transfer over a greater angular extent of suction of the upper suction roll 60.
  • the transfer of the suction roll 60 on the roll-up roller 31 is performed by the relative positioning of the active suction zones.
  • the belt 4 is guided opposite the suction rollers 60 and 31 around two upper guide rollers 64 and lower 65 so as to describe an "S" path.
  • this configuration makes it possible to couple the guide roller 64 and the suction roller 60 and the guide roller 65 and the suction roller 31 to drive them together.
  • This configuration with the inclined plane 63, allows to place the two mats 2 and 4 substantially at the same level, and the top of the roller 63. This avoids ventilation due to movement back and forth of the carriage.
  • a suction roller 100 is hollow having a cylindrical wall provided on its outer surface with grooves 102 here axial extending over the length of the roller and two opposite ends 100A, 100B.
  • Each groove 102 may be defined by a ridge 103 framed by two bottoms 104, each bottom 104 being made permeable to the air by means of suction orifices 105 of appropriate shape and density, depending on the intended applications, the suction force depending on 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 an external source suction.
  • the roller 100 is adapted to be rotated with respect to the tube 106 along an axis A of rotation by means of appropriate ball bearings R
  • the effective suction zone (107 on the figure 6 ), at the inlet 109 of which a fiber web 108 is supported by the roll 100 and at the outlet 110 of which the web is released, is delimited here by two radial deflectors 111A and 111B which are connected to the axial tube 106.
  • deflectors may advantageously be provided with means for adjusting their spacing (illustrated by arrows F) so as to be able to adjust the angular extent of the suction zone 107.
  • the tube 106 is perforated on the side only. of the suction zone 107.
  • the blanks 110A, 110B facing each other of neighboring grooves 102 deviate from the common bottom 104 towards the outside of the roll, so that when one puts in depression inside the roll, a depression chamber C is formed between the bottom 104 of the grooves and the two ridges adjacent having a suction surface between two ridges 103 widened relative to the outlet section of the orifice 105 and offset relative thereto.
  • the suction power is adjusted, in particular as a function of the running speed of the web 108, so that it is held and guided on the ridges 103 of the grooves 103 through the vacuum chamber C.
  • the air present in the sail 108 is sucked radially where appropriate inside the roller through the orifices 105 (shown schematically by the arrows F2). Due to the presence of the vacuum chamber C, the fibers of the web are not in contact with the orifices 105 and are unlikely to come to block them.
  • a triangular shape in section of the grooves as on the figures 7 and 8 advantageously makes it possible to further increase the suction surface of the vacuum chambers C and thus to suck up the veil over substantially its entire surface while maintaining a good mechanical strength for the roll.
  • the ridges 103 of the grooves are advantageously rounded as shown also on the figures 7 and 8 .
  • the bottom 104 of the grooves is widened relative to the ridges 103 of the grooves to increase the size of the orifices 105 and thus the suction force.
  • suction zone on the circumference of the roll in the suction zone, there is a zone where the suction is stronger, for example corresponding to the place where the centrifugal force is the most important.
  • This stronger suction zone can be obtained with perforations in this zone of size and / or of greater density, preferably progressively, with respect to the remainder of the permeable zone.
  • orifices 105 which are provided aligned from one groove base 104 to another on the figure 8 but which could also be staggered from one flute bottom to another.
  • the shape of the orifices 105 may also vary, either homogeneously along the length of the roll, or inhomogeneous to create a desired suction effect, such as homogenization or concentration.
  • the cross-section of the flutes can be trapezoidal, with the short side of the trapezium corresponding to the flute ridge, so as to enlarge the support surfaces of the veil when necessary.
  • the following values may be given for information only: a roll diameter of the order of one or several hundred mm and a depth and no groove of the order of a few mm.
  • FIG. 10 and 11 a second embodiment of the perforated cylindrical wall according to the invention has been schematized.
  • circular and two-stage perforations 200 are formed in the cylindrical wall, comprising a lower stage consisting of a suction orifice 205 opening into an upper stage of dimensions greater than the orifice 205 forming the chamber.
  • Support zones 203 for a web are thus formed on the surface of the wall between the perforations 200, said support zones being larger or smaller depending on the spacing of the perforations.
  • the shape of the vacuum chamber C may be conical or substantially parallelepipedic as shown in FIG. figure 11 , with a suction port in its bottom.
  • FIG. 12 On the Figures 12 and 13 two embodiments of the deflection means are shown. On the figure 12 it is a two-part 115 bent deflector 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 coverage of the web by the suction roll and thus cover several mounting configurations with the same roller design.
  • the same adjustable suction roller may be used to transfer a web between a card and a lapper at any angle between the incoming carpet and the carpet coming out.
  • FIG. 13 it is a tube 116 inserted inside the suction roll 100 and having an air permeable arcuate zone 116A and an arcuate deflection zone 116B having a greater radius of curvature than that of the permeable wall zone 116A for plugging the suction orifices 105 of the roll, the two zones 116A and 116B being connected by radial walls 117 and 118.
  • the deflector 116A then performs a diffuser function so as to homogenize the depression in the pre-chamber over the entire length of the suction roll.
  • the figure 14 illustrates another possible application of sail transfer using a suction roll according to the invention.
  • the transfer device serves to deposit a second web 80 on a first web 81 at the entrance of a crosslapper in order to form a double-web web at the outlet.
  • the first web is brought to a first full carpet 82.
  • the second web is brought to a second full carpet 83 moved in the same direction as the carpet 82 but in a plane above.
  • the belt 83 is guided on an inclined portion 86 defined between two upper guide rolls 87 and 88 and a lower guide roller 89 located in a plane closer to the belt 82 and around which the carpet 83 reverses to start in the opposite direction.
  • the controlled transfer of the veil on the belt 82 is performed by means of a suction roller 90 according to the invention, placed above the veil 80 so that the veil is maintained by suction before being deposited on the veil 81.
  • the figure 15 illustrates another possible application according to the invention.
  • the suction roller is used to effect a reversal of the sail to apply a change of direction at 90 ° to the web substantially in the same plane.
  • a web 91 arrives on a first solid carpet 92 which performs a half-turn using an oblique guide roller 93.
  • a suction roller 94 according to the invention is placed near the roller 93 to take the web 91. The latter is then supported by the suction roller 94, follows a curvature corresponding to a turnaround to be substantially in the same plane, the position of the suction roller 94 defining the direction in which the sail 91 leaves on the second carpet full of transport 95.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)

Claims (25)

  1. Saugwalze (100; 31; 60; 90; 94) zur Behandlung eines Flors (108; 1; 80; 91) aus Textilfasern oder aus einem gleichwertigen Produkt, das ggf. dichter oder dicker sein kann, wie ein Vlies, ein Band, usw., wobei die Walze hohl und mit einer Ansaugquelle verbunden ist und eine mit Ansaugöffnungen versehene zylindrische Wand hat, dadurch gekennzeichnet, dass die Ansaugöffnungen (105, 205) in mindestens eine Unterdruckkammer (C) münden, die in der zylindrischen Wand zwischen Auflagezonen (103, 203) für das Vlies ausgebildet ist.
  2. Walze nach Anspruch 1, dadurch gekennzeichnet, dass die Unterdruckkammer (C) eine Kegelform aufweist.
  3. Walze nach Anspruch 1, dadurch gekennzeichnet, dass die Ansaugöffnungen (105) am Boden (104) von Rillen (102) angeordnet sind, wobei die Unterdruckkammer (C) zwischen dem Boden (104) jeder Rille (102) und ihren zwei benachbarten Kämmen (103) erzeugt wird, wobei die Rillenkämme die Auflagezonen für das Flor bilden.
  4. Walze nach Anspruch 3, dadurch gekennzeichnet, dass die Rillen (102) im Schnitt ein im Wesentlichen dreieckiges Profil haben.
  5. Walze nach Anspruch 3 oder 4, dadurch gekennzeichnet, dass der Kamm (103) der Rillen (102) abgerundet ist.
  6. Walze nach Anspruch 5, dadurch gekennzeichnet, dass die Rillen (102) im Schnitt ein trapezförmiges Profil haben, wobei die kleine Seite des Trapezes dem Rillenkamm (103) entspricht.
  7. Walze nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Boden (104) der Rillen bezüglich der Kämme (103) verbreitert ist.
  8. Walze nach einem der Ansprüche 3 bis 7, dadurch gekennzeichnet, dass die Ansaugöffnungen (105) zwischen zwei benachbarten Rillen auf Lücke versetzt angeordnet sind.
  9. Walze nach einem der Ansprüche 3 bis 8, dadurch gekennzeichnet, dass die Rillen (102) in Umfangrichtung lotrecht zur Drehachse der Walze angeordnet sind.
  10. Walze nach einem der Ansprüche 3 bis 8, dadurch gekennzeichnet, dass die Rillen (102) axial parallel zur Drehachse der Walze angeordnet sind.
  11. Walze nach einem der Ansprüche 3 bis 8, dadurch gekennzeichnet, dass die Rillen (102) schraubenförmig sind.
  12. Walze nach einem der Ansprüche 3 bis 8, dadurch gekennzeichnet, dass die Rillen (102) zwei gegenläufige Schraubenlinien beschreiben.
  13. Walze nach Anspruch 12, dadurch gekennzeichnet, dass die Schraubenlinien sich im Wesentlichen im zentralen Bereich der Walze treffen.
  14. Walze nach einem der vorhergehenden Ansprüche, gekennzeichnet durch eine Ansaugzone (107), die von Ablenkeinrichtungen (111A; 111B; 116B; 115; 46) definiert wird, die im Inneren der Walze angeordnet sind.
  15. Walze nach dem vorhergehenden Anspruch, gekennzeichnet durch Einrichtungen zur Einstellung der Winkelausdehnung der Ansaugzone.
  16. Walze nach Anspruch 14 oder 15, gekennzeichnet durch Einrichtungen zur Konzentration der Ansaugung, um eine progressiv stärkere Ansaugung in einer Winkelausdehnungszone der Ansaugzone zu erzeugen.
  17. Walze nach Anspruch 16, dadurch gekennzeichnet, dass die Winkelausdehnungszone im Wesentlichen der Stelle entspricht, wo die Zentrifugalkraft am stärksten ist.
  18. Walze nach einem der Ansprüche 14 bis 17, dadurch gekennzeichnet, dass die Ablenkeinrichtungen zwei radiale Ablenkbleche (111A; 111B) aufweisen.
  19. Walze nach Anspruch 18, dadurch gekennzeichnet, dass die Einrichtungen zur Einstellung der Winkelausdehnung der Ansaugzone Einrichtungen zur Einstellung des Winkelabstands der zwei radialen Ablenkbleche aufweisen.
  20. Walze nach einem der Ansprüche 14 bis 17, dadurch gekennzeichnet, dass die Ablenkeinrichtungen ein gebogenes Ablenkblech (115; 116B) aufweisen.
  21. Walze nach Anspruch 20, dadurch gekennzeichnet, dass das gebogene Ablenkblech (115) eine teleskopisch variable Bogenlänge besitzt.
  22. Walze nach einem der Ansprüche 14 bis 17, dadurch gekennzeichnet, dass die Ablenkeinrichtungen ein Rohr (116) enthalten, das im Inneren der Walze (100) angeordnet ist und eine luftdurchlässige Zone (116A) und eine ein Ablenkblech bildende Zone (116B) aufweist, wobei die Ansaugeinrichtungen mit dem Inneren des Rohrs verbunden sind.
  23. Walze nach Anspruch 22, dadurch gekennzeichnet, dass, wenn die Ansaugung im Wesentlichen entlang der Achse der Walze über die Enden der Walze erfolgt, die luftdurchlässige Zone (116A) des Rohrs aus Perforierungen besteht, deren Größe und/oder Dichte progressiv variiert, um eine homogene Ansaugung über die ganze Länge der durchlässigen Zone zu erzeugen.
  24. Walze nach Anspruch 22 oder 23, dadurch gekennzeichnet, dass die luftdurchlässige Zone (116A) einen kleineren Krümmungsradius hat als der Krümmungsradius der ein Ablenkblech bildenden Zone (116B), um eine Homogenisierungs-Vorkammer zwischen der zylindrischen Wand der Walze und der durchlässigen Zone (116A) zu erzeugen.
  25. Walze nach einem der Ansprüche 22 bis 24, dadurch gekennzeichnet, dass die Einrichtungen zur Erzeugung einer progressiv stärkeren Ansaugung in einem Winkelausdehnungsbereich der Ansaugzone Perforierungen in diesem Bereich aufweisen, deren Größe und/oder Dichte vorzugsweise progressiv größer als im Rest der durchlässigen Zone ist.
EP03291165A 2002-05-28 2003-05-20 Saugwalze zur Behandlung eines textilen Faserbandes oder vergleichbares Produkt Expired - Lifetime EP1367165B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0206468 2002-05-28
FR0206468A FR2840325B1 (fr) 2002-05-28 2002-05-28 Rouleau aspirant pour le traitement d'un voile de fibres textiles ou produit equivalent

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EP1367165B1 true EP1367165B1 (de) 2009-08-26

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KR100815990B1 (ko) 2006-12-18 2008-03-24 이규환 섬유원단가공용 회전식 진공흡입롤러
EP3168337B1 (de) * 2015-11-10 2018-03-28 Oskar Dilo Maschinenfabrik KG Vorrichtung zum geführten transport einer florbahn
JP2022002893A (ja) * 2020-06-23 2022-01-11 ザ・ボーイング・カンパニーThe Boeing Company プライバイプライ式製造プロセスにおいてラミネートプライの被トリミング部分を選択的に除去するための自動除去装置、システム、及び方法
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
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

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US3616007A (en) * 1969-02-28 1971-10-26 Kimberly Clark Co Method for controlling and transferring crosslaid sheets
DE3710407A1 (de) * 1987-03-28 1988-10-13 Hollingsworth Gmbh Vorrichtung zum verfestigen eines textilvlieses u. dgl.
FR2732042B1 (fr) * 1995-03-22 1997-06-13 Thibeau & Cie Sa A Cylindre aspirant permettant le transfert d'un voile fibreux entre un tapis de transport et deux cylindres de calandrage

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EP1367165A1 (de) 2003-12-03
FR2840325B1 (fr) 2004-07-30
ATE440988T1 (de) 2009-09-15
DE60328942D1 (de) 2009-10-08
FR2840325A1 (fr) 2003-12-05

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