EP1777182B1 - Verfahren und Vorrichtung zum Transport einer Bahn von Vliesstoff mit elektrostatischer Halterung der Bahn von Vliesstoff - Google Patents

Verfahren und Vorrichtung zum Transport einer Bahn von Vliesstoff mit elektrostatischer Halterung der Bahn von Vliesstoff Download PDF

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Publication number
EP1777182B1
EP1777182B1 EP20060370028 EP06370028A EP1777182B1 EP 1777182 B1 EP1777182 B1 EP 1777182B1 EP 20060370028 EP20060370028 EP 20060370028 EP 06370028 A EP06370028 A EP 06370028A EP 1777182 B1 EP1777182 B1 EP 1777182B1
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Prior art keywords
conveyor belt
curved portion
woven fabric
strip
transport
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EP20060370028
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English (en)
French (fr)
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EP1777182A1 (de
Inventor
Xavier Catry
Jean-Christophe Laune
Marc Brabant
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Asselin Thibeau SAS
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Asselin Thibeau SAS
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00—Advancing webs
    • B65H20/06—Advancing webs by friction band
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/44—Moving, forwarding, guiding material
    • B65H2301/443—Moving, forwarding, guiding material by acting on surface of handled material
    • B65H2301/4433—Moving, forwarding, guiding material by acting on surface of handled material by means holding the material
    • B65H2301/44334—Moving, forwarding, guiding material by acting on surface of handled material by means holding the material using electrostatic forces

Definitions

  • the present invention relates to an improvement, in the textile field, in the transport of a nonwoven web by means of a conveyor belt.
  • the present invention finds application to any type of nonwoven (nonwoven carded, "spun”, “metiblown”, “airlaid") and is preferably used before consolidation of the nonwoven web.
  • nonwoven web generally designates any web of fibers and / or filaments or superposition of webs of fibers and / or filaments, regardless of the method of manufacture. the sail or sails, and the type of fibers or filaments.
  • the nonwoven web may consist of one or more webs of fibers or filaments selected from the list: carded nonwoven web, nonwoven web "ugly air”, nonwoven web of "meltblown” type "Spun non-woven fleece”.
  • all the sails may be of the same type, or the nonwoven may be composite, that is to say composed of several sails of different types such as for example a composite nonwoven of type CMC (carded sail / sail “meltblown” / sail carded) or type SMS (sail “spun” / sail “meltblown” / sail “spun”)
  • nonwoven strip designates indifferently the veil or the superposition of fiber sails. and / or filaments before consolidation or after consolidation.
  • the transport belt during its displacement, carries with it a boundary layer of air. As long as the non-woven strip remains inside this boundary layer of air, there is generally no problem. On the other hand, as soon as the nonwoven exits all or part of this limit air layer, problems of raising and turning of the nonwoven web are observed which are extremely detrimental to the quality of the non-woven web. -woven.
  • the present invention aims to propose a new technical solution to the aforementioned problem of detachment of a web of nonwoven by means of a conveyor belt, in the regions of change of direction of the conveyor belt.
  • the solution of the invention consists in electrostatically charging the non-woven web and / or the transport tape. so as to adhere the nonwoven web against the surface of the conveyor belt at least in the region corresponding to a change of direction of the conveyor belt.
  • the invention thus has as its first object a method of transporting a non-woven strip on the surface of a conveyor belt comprising at least a first rectilinear or curved portion, which is extended by a second curved portion having a radius of curvature less than the radius of curvature of the first rectilinear or curved portion.
  • the nonwoven web and / or the conveyor belt are electrostatically charged so as to adhere the nonwoven web against the surface of the conveyor belt at least in said second portion. curve.
  • the invention also relates to a spreader-lapper comprising an input transport belt and an input carriage movable in translation in two opposite directions.
  • the spreader-lapper comprises a aforementioned transport assembly, the conveyor belt of this assembly constituting the input conveyor belt of the crosslapper, said drive means of this assembly. transport comprising said input carriage, and the ionization means of this transport assembly being mounted on the input carriage.
  • FIG 1 a first example of application of the invention in the field of the transport of nonwoven webs leaving a card 1.
  • the card output members mounted downstream of the main carding drum have been shown.
  • the card 1 of the figure 1 comprises three outputs S1, S2 and S3, each having a sail forming cylinder 2, for example of the doffer or condenser type, associated with a detaching cylinder 3.
  • the card makes it possible, in the usual manner, to produce in parallel three strips nonwoven W1, W2 W3 unbound.
  • the three nonwoven webs W1, W2 and W3 consist of fibers forming a dielectric material. These are, for example, synthetic fibers based on polypropylene or polyethylene, and / or natural fibers of the cotton type, and / or artificial fibers of the viscose type.
  • the card 1 is further equipped at the output of two belt conveyors 4 and 5.
  • the first belt conveyor 4 makes it possible, on the one hand, to receive from the card the three nonwoven webs W1, W2 and W3, the nonwoven web W3 being deposited on the nonwoven web W2, itself same deposited on the nonwoven web W1, and secondly the routing of the three superimposed nonwoven webs W1 / W2 / W3 to the second belt conveyor 5, for subsequent routing for example until 'to a consolidation station of type calender, needling machine, etc ...
  • the first conveyor belt 4 comprises a conveyor belt 40 wound and stretched in a closed path on guide rollers 41a, 41b, 41c, at least one of which (for example roller 41c) is a roll of motorized drive, the other rollers 41a and 41b being for example rotatably mounted and serving only to guide the conveyor belt 40.
  • the conveyor belt 40 can advantageously and indifferently according to the invention be breathable or impermeable to air. the air.
  • the conveyor belt 40 forms a first straight portion 40a driven in the transport direction T1.
  • This first straight portion 40a extends at the periphery of the guide roller 41b by a curved transition portion 40b.
  • the three superimposed nonwoven webs W1 / W2 / W3 are conveyed in the first direction in the transport direction T1 to the guide roller 41b, where they undergo a relatively abrupt change of direction in the 40b transition curve portion.
  • the three superimposed nonwoven webs W1 / W2 / W3 are in contact with the conveyor belt 40 over a curved sector (AB);
  • the generator A corresponds to the transition between the first straight portion 40a and the curved portion 40b of the conveyor belt 40;
  • the generator B marks the limit where the three superimposed nonwoven webs W1 / W2 / W3 leave the conveyor belt 40 and are taken up by the second belt conveyor 5.
  • the three superimposed nonwoven webs W1 / W2 / W3 are taken up by the belt conveyor 5 and are conveyed in the transport direction T2.
  • the angle ⁇ corresponds to the direction change angle of the nonwoven webs W1 / W2 / W3 at the guide roll 41b. This angle ⁇ is greater than 45 °.
  • a fixed ionizing ionizing bar 6 which extends in the direction perpendicular to the plane of the figure 1 , preferably over substantially the entire width of the conveyor belt 40.
  • the ionizing bar 6 allows, in operation, to generate a powerful electric field 6a, saturated with ions, said ionizing field.
  • the ionizing bar 6 comprises, for example, a plurality of electrodes or high-voltage tips which are powered by a high-voltage DC generator (not shown). More particularly, the ionizing bar 6 makes it possible to generate negative ions locally in the transition region between the first straight portion 40a and the curved portion 40b, close to and preferably over the entire width of the three superposed nonwoven strips W1 / W2 / W3.
  • the conveyor belt 40 is made of an electrically conductive material, and acts as a mass connected to the earth.
  • the three strips of nonwoven W1, W2, W3 tend to exit the first straight portion 40a to continue their movement in the direction T1, and thus to take off locally from the conveyor belt 40 in the curved portion 40b of change of direction.
  • detachment of the non-woven strips W1, W2, W3 results in a detrimental deterioration of their structure.
  • the electrostatic retention of the three strips of nonwoven W1, W2, W3 makes it possible to avoid this phenomenon of separation, and incidentally to increase the speed of transport of the nonwoven strips.
  • the upper nonwoven web W1 being electrostatically pressed against the intermediate nonwoven web, W2, itself electrostatically pressed against the lower nonwoven web W3, advantageously a support is obtained. electrostatically of the three nonwoven webs relative to each other, which advantageously allows to avoid relative sliding of the nonwoven webs relative to each other in the curved portion 40b of the change of management.
  • the ionizing bar 6 is positioned so that the ionizing field 6a makes it possible to adhere the nonwoven webs W1 / W2 / W3 against the conveyor belt 40 since at least the transition (A) between the rectilinear portion 40a and the curved portion 40b.
  • the ionizing field 6a is present in a region extending from a point (A1) upstream of the transition A. It thus makes it possible to charge electrostatically, and thereby to adhere, the strips of nonwoven W1 / W2 / W3 against the conveyor belt 40 before their entry into the curved portion 40b of change of direction.
  • the ionizing field 6a is applied to the point (A2), and does not necessarily extend to the exit point B. Between the points A2 and B, the ionizing field 6a not being present, the three strips of nonwoven W1 / W2 / W3 begin to discharge, the ions discharging to the ground via the conductive conveyor belt 40. Nevertheless, the electrostatic charge preferably remains sufficient to make adhering the three strips of nonwoven W1 / W2 / W3 against the conveyor belt 40 in the curved portion which extends between the points A2 and B.
  • a suction box 7 is positioned in the transition region between the two belt conveyors 4 and 5.
  • this suction box 7 makes it possible to locally generate, through the air permeable band 50 of the conveyor 5, a flow of air (symbolized by arrows F on the figure 1 ), which makes it possible to temporarily plate the three strips of nonwoven W1 / W2 / W3 on the surface of the conveyor belt 50.
  • the suction flow generated by this suction box 7 makes it possible to take off from the conveyor belt 40 nonwoven webs W1 / W2 / W3 adhering to said conveyor belt 40 under the effect of their electrostatic charge.
  • electrostatic charging can be implemented.
  • it is the conveyor belt that can be electrostatically charged.
  • both the nonwoven web or strips and the conveyor belt may be electrostatically charged and with opposite polarities.
  • crosslapper 8 The structure and operation of the crosslapper 8 are known to those skilled in the art and will therefore not be detailed in the present description; For the sake of simplification and brevity, only the technical elements of the crosslapper 8 necessary for the understanding of the present invention will be described hereinafter. For a complete understanding of the structure and operation of the crosslapper 8, reference will be made for example to the text of the international patent application WO 92/21799 .
  • the crosslapper 8 comprises two belt conveyors 9 and 10.
  • the belt conveyor 9 comprises a conveyor belt 90 which is wound in a closed path on guide rollers 91a to 91I, at least one of which is motorized for driving the conveyor belt 90.
  • the two rear guide rollers 91a, 91b are usually embarked on a mobile entry trolley 11, and are mounted free to rotate about their central axis relative to the trolley 11.
  • the guide rollers 91j, 91k and 91l are usually embarked on a mobile output trolley 12, and are mounted free to rotate about their central axis relative to the trolley 12.
  • the input trolley 11 and the output trolley 12 are movable in translation, and are equipped with drive means (not shown) for moving them in translation alternately in the two opposite directions D and G.
  • the belt conveyor 10 comprises a conveyor belt 100 which is wound in a closed path on guide rollers 100a to 100j at least one of which is motorized for driving the conveyor belt 100.
  • the guide rollers 100a at 100d are usually embedded on the mobile entry trolley 11, and are mounted free in rotation along their central axis relative to this carriage 11.
  • the guide roller 100e is embedded on the mobile output carriage 12, and is rotatably mounted along its central axis relative to the carriage 12.
  • the trolleys 11 and 12 and thus the onboard guide rollers 91a, 91b, 100a, 100b, 100c, 91j, 91k, 91l, 100e which are embedded on these trolleys 11 and 12, are driven by a translation movement back and forth in opposite directions D and G.
  • the nonwoven web W (produced upstream of the crosslapper for example by means of a not shown card) is deposited at the entrance of the This web of nonwoven W may also consist of several strips of nonwoven superimposed in a manner comparable to that previously described for the application of the invention. figure 1 .
  • This nonwoven web W is conveyed by the conveyor belt 90 to a nip zone of the nonwoven web between the two conveyor belts 90 and 100.
  • the nonwoven web W undergoes a double movement . It is driven by the conveyor belt 90 in the successive directions T0 to T3, the direction T3 being oriented at 180 ° with respect to the input direction T1 (reversal of the direction of movement of the nonwoven web W). Due to the displacement in translation back and forth of the carriages 11 and 12, the nonwoven web W is reciprocated back and forth in the opposite directions G and D, which allows to fold alternately the nonwoven web W on itself at the surface of an output belt conveyor 13, oriented transversely to the width of the nonwoven web W.
  • the conveyor belt 90 comprises a rectilinear portion 90a (similar to the straight portion 40a cited above of the example of FIG. figure 1 ) extending at the rear guide roller 91a by a curved portion 90b (similar to the curved portion 40b above of the example of the figure 1 ).
  • the nonwoven web W from its inertia, tends to take off from the conveyor belt in the curved portion 90b of change of direction. The higher the drag speed of the conveyor belt 90 and / or the greater the weight of the nonwoven web W, the greater the risk of peeling.
  • (+) signs symbolize the air pressure created by the movement of the conveyor belt 90 and the guide roller 91a in the direction G; the signs (-) symbolize the air depression created by the recoil movement of the conveyor belt 90 and the guide roller 91a in the reverse direction D (opposite direction to the displacement of the conveyor belt 90 in its rectilinear portion 90a upstream of the curved portion 90b).
  • the crosslapper 8 is equipped with an ionizing bar 14 which is mounted on the carriage of 11, being positioned near the conveyor belt 90, in the transition region between the rectilinear portion 90a and the curved portion 90b.
  • This ionizing bar 14 extends in the direction perpendicular to the plane of the figure 2 (Direction corresponding to the width of the conveyor belt 90), preferably over substantially the entire width of the conveyor belt 90. It allows in operation to generate a powerful electric field 14a, saturated with ions (ionizing field).
  • This ionizing bar 14a is comparable to the ionizing bar 6 described above; all the technical considerations previously described for the ionizing bar 6 in the context of the application of the figure 1 apply to the implementation of the ionizing bar 14, and for the sake of brevity will therefore not be repeated in the present description.
  • the ionizing bar 14 which is embedded on the input carriage 11 advantageously constitutes a relatively light element which does not significantly increase the inertia of the carriage 11.
  • the ionizing bar 14 is an element which is advantageously able to bulky, and therefore easy to accommodate on the carriage 11.
  • the invention is however not limited to the implementation of ionization means 14 on board, that is to say mobile with the input carriage 11.
  • the ionization means 14 may be fixed, the input carriage 11 moving relative to the fixed ionization means.
  • transport belts 90 and 100 which are smooth and impervious to air.
  • the solution of the invention works advantageously with this type of conveyor belt.
  • This conveyor 15 comprises a conveyor belt 150 which is wound according to a path closed on guide rollers 151 (only one of these rollers being shown on the figure 4 ).
  • the conveyor belt may, depending on the case, be impermeable or breathable.
  • the conveyor belt 150 comprises a first straight portion 150a (similar to the straight portion 40a above of the example of the figure 1 ) extending at the level of the guide roller 151 by a curved portion 150b (similar to the curved portion 40b cited above of the example of FIG. figure 1 ).
  • the curved portion 150b is extended by a second rectilinear portion 150c, substantially parallel to the first straight portion 150a.
  • a fixed ionizing bar 16 is mounted near the conveyor belt 150, in the transition region between the first straight portion 150a and the curved portion 150b.
  • This ionizing bar 16 extends in the direction perpendicular to the plane of the figure 4 (Direction corresponding to the width of the conveyor belt 150), preferably over substantially the entire width of the conveyor belt 150. It allows in operation to generate a powerful electric field 16a, saturated with ions (ionizing field).
  • the nonwoven web W is conveyed in the first direction in the transport direction T1 to the guide roller 150 where it undergoes a relatively abrupt 180 ° change of direction in the transition curve portion 150b.
  • the nonwoven web W tends to take off from the conveyor belt in the curved portion 150b of change of direction.
  • the nonwoven web W is electrostatically charged as it passes through the ionizing field 16a. As a result, it adheres perfectly to the surface of the conveyor belt 150 at least throughout the curved portion 150b, and thus avoids the detachment of the nonwoven web W in the curved portion 150b.
  • the strip of nonwoven W gradually discharges via the electrically conductive conveyor belt 150, the electrostatic charge of the nonwoven web W remaining however sufficient to at least compensate the effect of the gravity and adhere the web of nonwoven W against the underside of the conveyor belt 150 in the second straight portion 150c.
  • the nonwoven web W is thus conveyed in the direction of transport T2 opposite the direction T1 by the conveyor belt after it has been turned over in the curved portion 150b.
  • additional ionization means may be provided at the curved portion 150b and / or the second straight portion 150c, to enhance the electrostatic charge of the nonwoven web W, and allow adhesion over a greater distance of the nonwoven web against the underside of the conveyor belt 150 in the second straight portion 150c.
  • the first portion (40a; 90a; 150a) of the conveyor belt which precedes the second curved portion (40b; 90b; 150) corresponding to the change of direction of transport, is rectilinear and therefore has an infinite radius of curvature.
  • said first portion (40a; 90a; 150a) could be curved, the second curved portion (40b; 90b; 150), which corresponds to the change of direction of transport, presenting in all cases a radius of curvature less than the radius of curvature of said first portion.

Claims (14)

  1. Verfahren zum Transportieren einer Vliesstoffbahn (W1/W2/W3; W) an der Oberfläche eines Förderbandes (40; 90; 150), das zumindest einen geradlinigen oder gekrümmten ersten Abschnitt (40a; 90a; 150a) aufweist, der sich in einen gekrümmten zweiten Abschnitt (40b; 90b; 150b) mit einem kleineren Krümmungsradius als der Krümmungsradius des geradlinigen oder gekrümmten ersten Abschnitts (40a; 90a; 150a) fortsetzt, dadurch gekennzeichnet, dass die Vliesstoffbahn (W1/W2/W3; W) und/oder das Förderband (40;90;150) elektrostatisch so (derart) geladen wird, dass die Vliesstoffbahn gegen die oder an der Oberfläche des Förderbandes - zumindest in dem gekrümmten zweiten Abschnitt (40b;90b;150b) - anhaftet oder zum Anhaften gebracht wird.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass der Vliesstoff (W1/W2/W3; W) und/oder das Förderband (40; 90; 150) elektrostatisch geladen wird, so dass die Vliesstoffbahh zum Anhaften an der Oberfläche des Förderbandes in dem gekrümmten zweiten Abschnitt zumindest ausgehend von dem Übergang (A) zwischen dem geradlinigen bzw. gekrümmten ersten Abschnitt (40a; 90a; 150a) und dem gekrümmten zweiten Abschnitt (40b; 90b; 150b) gebracht wird.
  3. Verfahren nach Anspruch 2, dadurch gekennzeichnet, dass die Vliesstoffbahn (W1/W2/W3; W) und/oder das Förderband (40; 90; 150) von einem Punkt (A1), welcher dem Übergang (A) zwischen dem geradlinigen bzw. gekrümmten ersten Abschnitt (40a; 90a; 150a) und dem gekrümmten zweiten Abschnitt (40b; 90b; 150b) vorgelagert ist, bis zu einem dem Übergang (A) nachgelagerten Punkt (A2) elektrostatisch geladen wird.
  4. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass in einem Transportbereich, in dem die Vliesstoffbahn (W1/W2/W3) elektrostatisch an dem Förderband (40) anhaftet, die Vliesstoffbahn mittels eines Luftstroms (F) von dem Förderband gelöst wird.
  5. Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass während des Transports der Vliesstoffbahn der gekrümmte zweite Abschnitt (90b) des Förderbandes (90) in zumindest einer Richtung (G) verlagert wird, die quer zur Oberfläche des gekrümmten zweiten Abschnitts (90b) verläuft.
  6. Verfahren nach Anspruch 5, dadurch gekennzeichnet, dass der gekrümmte zweite Abschnitt (90b) des Förderbandes (90) in eine - in zwei entgegen gesetzte Querrichtungen (G und D) alternierende - Bewegung versetzt wird.
  7. Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass am Auslauf des gekrümmten zweiten Abschnitts (150b) die Vliesstoffbahn (W) nicht mehr von dem Förderband (150) gestützt wird und dass die elektrostatische Ladung der Vliesstoffbahn (W1/W2/W3; W) und/oder des Förderbandes (150) so erfolgt, dass zumindest die Schwerkraftwirkung kompensiert wird und die Vliesstoffbahn (W) gegen die oder an der Unterseite des Förderbandes, dem gekrümmten zweiten Abschnitt (150b) nachgelagert zum Anhaften gebracht wird.
  8. Anordnung zum Transportieren einer Vliesstoffbahn (W1/W2/W3; W), wobei die Anordnung ein Förderband (40; 90; 150) aufweist, das zumindest einen geradlinigen oder gekrümmten ersten Abschnitt (40a; 90a; 150a) aufweist, der sich in einen gekrümmten zweiten Abschnitt (40b; 90b; 150b) mit einem kleineren Krümmungsradius als der Krümmungsradius des geradlinigen oder gekrümmten ersten Abschnitts (40a; 90a; 150a) fortsetzt, gekennzeichnet durch (ein) Ionisierungsmittel (6;14;16), welche(s) angepasst sind (ist) ein Ionisierungsfeld (6a;14a;16a) in der Nähe des Förderbandes (40; 90; 150) zu erzeugen, so dass die Vliesstoffbahn (W1/W2/W3; W) und/oder das Förderband (40; 90; 150) elektrostatisch geladen wird, um die Vliesstoffbahn zum Anhaften an der Oberfläche des Förderbandes zumindest im gekrümmten zweiten Abschnitt (40b;90b;150b) zu bringen.
  9. Anordnung nach Anspruch 8, dadurch gekennzeichnet, dass das/die Ionisierungsmittel (6; 14; 16) ein Ionisierungsfeld (6a; 14a; 16a) zumindest in dem Übergangsbereich zwischen dem geradlinigen bzw. gekrümmten ersten Abschnitt (40a; 90a; 150a) und dem gekrümmten zweiten Abschnitt (40b; 90b; 150b) des Förderbandes (40; 90; 150) erzeugen können/kann.
  10. Anordnung nach Anspruch 8 oder 9, dadurch gekennzeichnet, dass sie Saugmittel (7) aufweist, um die Vliesstoffbahn (W1/W2(W3) von der Oberfläche des Förderbandes (40) in einem Bereich zu lösen, in dem die Vliesstoffbahn elektrostatisch am Förderband (40) anhaftet.
  11. Anordnung nach einem der Ansprüche 8 bis 10, dadurch gekennzeichnet, dass sie Antriebsmittel (11, 91 a) aufweist, mit denen der gekrümmte zweite Abschnitt (90b) des Förderbandes (90) in zumindest einer Richtung (G) verlagert werden kann, die quer zur Oberfläche des gekrümmten zweiten Abschnitts (90b) verläuft.
  12. Anordnung nach Anspruch 11, dadurch gekennzeichnet, dass die Antriebsmittel (11,91a) ermöglichen, den gekrümmten zweiten Abschnitt (90b) des Förderbandes (90) abwechselnd in zwei entgegengesetzten Querrichtungen (G und D) zu verlagern.
  13. Anordnung nach Anspruch 11 oder 12, dadurch gekennzeichnet, dass die/das Ionisierungsmittel (14) mit dem gekrümmten zweiten Abschnitt (90b) des Förderbandes beweglich sind/ist.
  14. Vliesbandleger (8) mit einem Einlauf-Förderband (90) und einem Einlaufwagen (11), der in zwei entgegengesetzten Richtungen (D und G) verschiebbar ist, dadurch gekennzeichnet, dass er eine Transportanordnung nach Anspruch 12 enthält, wobei das Förderband dieser Anordnung das Einlauf-Förderband (90) des Vliesbandlegers bildet, wobei die Antriebsmittel dieser Transportanordnung den Einlaufwagen (11) enthalten und die Ionisierungsmittel (14) dieser Transportanordnung an dem Einlaufwagen (11) angebracht sind.
EP20060370028 2005-10-19 2006-09-22 Verfahren und Vorrichtung zum Transport einer Bahn von Vliesstoff mit elektrostatischer Halterung der Bahn von Vliesstoff Active EP1777182B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0510659A FR2892108B1 (fr) 2005-10-19 2005-10-19 Procede et ensemble de transport d'une bande de non-tisse avec maintien electrostatique de la bande de non-tisse

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EP1777182A1 EP1777182A1 (de) 2007-04-25
EP1777182B1 true EP1777182B1 (de) 2008-07-30

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EP (1) EP1777182B1 (de)
CN (1) CN1951788B (de)
DE (1) DE602006002012D1 (de)
ES (1) ES2309934T3 (de)
FR (1) FR2892108B1 (de)

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CN106929998B (zh) * 2017-04-16 2018-11-30 丹阳市益讯机械有限公司 具有稳定进料系统的经编机
CN111037929A (zh) * 2019-12-18 2020-04-21 溧阳市山湖实业有限公司 一种静电吸附pu复合板生产工艺

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JPH0731458B2 (ja) * 1985-12-26 1995-04-10 松下電器産業株式会社 転写・搬送装置
DE19749593A1 (de) * 1997-11-10 1999-05-20 Moelnlycke Ab Vorrichtung zum Transportieren kontinuierlicher längserstreckter Materialbahnen
DE10050848A1 (de) * 2000-10-13 2002-04-18 Voith Paper Patent Gmbh Bahnstabilisierung
DE10128653A1 (de) * 2001-06-15 2002-12-19 Will E C H Gmbh & Co Fördereinrichtung für Bogenlagen und Verfahren zum Zusammenbringen von Bogenlagen

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ES2309934T3 (es) 2008-12-16
EP1777182A1 (de) 2007-04-25
FR2892108B1 (fr) 2008-01-11
DE602006002012D1 (de) 2008-09-11
CN1951788A (zh) 2007-04-25
FR2892108A1 (fr) 2007-04-20
CN1951788B (zh) 2010-05-12

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