EP2128314A2 - Puffervorrichtung und -system sowie Produktionssystem einer Vliesstoffbahn - Google Patents

Puffervorrichtung und -system sowie Produktionssystem einer Vliesstoffbahn Download PDF

Info

Publication number
EP2128314A2
EP2128314A2 EP09370008A EP09370008A EP2128314A2 EP 2128314 A2 EP2128314 A2 EP 2128314A2 EP 09370008 A EP09370008 A EP 09370008A EP 09370008 A EP09370008 A EP 09370008A EP 2128314 A2 EP2128314 A2 EP 2128314A2
Authority
EP
European Patent Office
Prior art keywords
downstream
conveyor belt
upstream
nonwoven web
transport
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.)
Granted
Application number
EP09370008A
Other languages
English (en)
French (fr)
Other versions
EP2128314A3 (de
EP2128314B1 (de
EP2128314B9 (de
Inventor
Jean-Christophe Laune
Bernard Chatelet
François LOUIS
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Andritz Asselin Thibeau SAS
Original Assignee
Asselin Thibeau SAS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=40019271&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2128314(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Asselin Thibeau SAS filed Critical Asselin Thibeau SAS
Publication of EP2128314A2 publication Critical patent/EP2128314A2/de
Publication of EP2128314A3 publication Critical patent/EP2128314A3/de
Publication of EP2128314B1 publication Critical patent/EP2128314B1/de
Application granted granted Critical
Publication of EP2128314B9 publication Critical patent/EP2128314B9/de
Revoked legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • D01G15/02—Carding machines
    • D01G15/12—Details
    • D01G15/46—Doffing or like arrangements for removing fibres from carding elements; Web-dividing apparatus; Condensers
    • 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 the production of non-woven monolayer or multilayer webs, and more particularly the production of fibrous webs obtained by folding a nonwoven fibrous web by means of a crosslapper, the production of non-fibrous webs. -tissés, or the production of multilayer non-woven strips obtained by superposition of at least two nonwoven fibrous webs.
  • the invention relates more precisely to a buffer system or buffer device for compensating, where appropriate, the speed variations of a non-woven strip at the output of an upstream machine, so as to feed a downstream processing machine with a predefined speed. .
  • the invention finds more particularly, but not exclusively, an application in the production and processing of a thick multilayer fibrous web obtained by folding a nonwoven fibrous web by means of a crosslapper whose output member can have a discontinuous feed mode.
  • a machine commonly referred to as a crosslapper, is used to manufacture a thick multilayer fibrous web by folding a nonwoven web of fibers onto a moving conveyor belt. and oriented transversely to the longitudinal direction of the web.
  • the nonwoven web is, for example, delivered upstream of the crosslapper by a device for producing nonwoven web, such as in particular a nonwoven card.
  • a multilayer fibrous web is obtained which consists of successive transverse folds overlapping at an oblique angle.
  • crosslapper structures have in common the fact that they comprise means of unwinding the fibrous web on the transverse exit belt, which means unwinding are driven reciprocating back and forth to obtain the folding of the fibrous web.
  • said unwinding means comprise a lower unwinding carriage driven reciprocally above the transverse exit conveyor. The stroke of this carriage determines the width of the web.
  • the unwinding means eg unwinding carriage
  • the exit belt is driven at a constant speed, repeated deformations of fibrous material occur during the deceleration / stop / acceleration phase of the unwinding means. These deformations may result in damaging oversizes and variable fiber orientations at the two longitudinal edges of the web. To avoid these harmful deformations, it is customary today, as taught in particular in the aforementioned French patent application.
  • the multilayer fibrous web Downstream of the crosslapper, the multilayer fibrous web is then processed by one or more in-line machines, and is especially consolidated, for example by mechanical needling. It may also, in some applications, pass into a drawing device composed of a plurality of successive rollers whose circumferential speeds are increasing, so as to obtain a mechanical stretching of the fibrous web in the direction of its length (machine direction).
  • the entry speed of this downstream machine is constant, and can not follow the movement discontinuous output of the spreader-lapper.
  • this speed is substantially equal to the average speed of the exit belt of the crosslapper during all its operating phases.
  • the exit belt of the crosslapper is slowed down, then is accelerated temporarily with respect to the speed of entry downstream machine.
  • the multilayer and unconsolidated structure (the layers are not linked together) of the web at the output of the crosslapper makes the handling of this web constraining.
  • care must be taken to avoid the phenomena of reversal of the upper layers during transport of the web before consolidation.
  • the stretching rates must be limited and constant over time, so as not to risk delamination of the layers of the sheet.
  • the buffer device comprises a lower conveyor belt, an upper conveyor belt associated with suction means, and an accumulator transfer roller.
  • This accumulator transfer roller is positioned between the two conveyor belts, and is movable in translation between the two strips.
  • the lower conveyor belt is driven at a non-constant speed corresponding to the output speed of the roller stretcher.
  • the upper conveyor belt is driven at a constant speed corresponding to the entry speed of the crosslapper.
  • the suction means for suction plating the nonwoven web on the lower strand of the upper conveyor belt In operation, the nonwoven web is transported by the lower conveyor belt to the accumulator transfer roller, is transferred by said roll to the lower strand of the upper conveyor belt.
  • the suction used allows the recovery of the nonwoven web by this lower strand of the upper conveyor belt.
  • the nonwoven web is then conveyed by the upper conveyor belt to the entry of the crosslapper.
  • the accumulator transfer roller is equipped with motorized means for moving it between the two upper and lower conveyor belts so as to automatically shorten or lengthen the path length of the nonwoven web as a function of the speed differential between the two webs. two transport bands.
  • This first embodiment of the buffer device described in the publication US 2003/0033691 is difficult to implement because it requires the use of suction means, able to maintain the nonwoven web on the lower strand of the conveyor belt. Also, in this buffer device, the nonwoven web undergoes two successive turns, a first turn around the accumulator transfer cylinder and a second turnaround on the upper conveyor belt, which can be detrimental to the structure and quality the nonwoven web, in particular being an unconsolidated nonwoven web. Finally, this buffer device is not suitable for thick multilayer fibrous webs such as those produced at the output of a crosslapper.
  • the buffer device comprises a first conveyor belt driven at a non-constant speed corresponding to the output speed of the roller stretcher, a second conveyor belt driven at a constant speed corresponding to the entry speed of the crosslapper and an accumulator strip disposed between the first and second strips.
  • Said third accumulator strip is translatable vertically between the first and second conveyor belts so as to adjust the length of the nonwoven web path as a function of the speed differential between the two conveyor belts.
  • the nonwoven web is conveyed by the first conveyor belt to the accumulator web and is transferred by said accumulator web to the second conveyor belt. More specifically, the nonwoven web is transported on a first vertical portion between the first conveyor belt and the accumulator strip and, after reversal, is transported on a second vertical portion, between said accumulator strip and the second conveyor belt. The nonwoven web is then conveyed by the second conveyor belt to the entrance of the crosslapper.
  • This second embodiment of the buffer device described in the publication US 2003/0033691 also reverses to the nonwoven web, which can be detrimental to the structure and quality of the nonwoven web.
  • the vertical translation movements of the accumulator tape can also damage the nonwoven web that is transported between said accumulator tape and the transport belts.
  • the buffer device is also not suitable for thick multilayer fibrous webs such as those produced at the output of a crosslapper.
  • the present invention aims to propose a new device or buffer system which is disposed downstream of a machine delivering a single-layer or multilayer non-woven strip with a speed that can be variable, and which makes it possible to compensate, if necessary, said speed variations. without altering the nonwoven web structure.
  • Another object of the invention is a system for continuously producing a nonwoven web having the technical features of claim 25 or claim 29.
  • FIG. 1 a first embodiment of a continuous production system of a fibrous web N.
  • This system comprises a crosslapper 1, a specific buffer device 2 of the invention and disposed immediately downstream of the crosslapper 1 , and a processing machine 3, which is arranged immediately downstream of the buffer device 2.
  • the downstream processing machine 3 is constituted by a roller stretcher.
  • the roller stretcher 3 can be replaced by one or more in-line machines having other functionalities, and for example by a consolidation machine (known per se ) the structure of the multilayer fibrous web N; the consolidation machine may for example allow consolidation of hydraulic type (implementation of water jets), or mechanical type (needling or cold calendering), or thermomechanical type (hot calendering thermoling). he is also it is possible to provide, for example, downstream of the buffer device 2, a consolidation machine followed by a drawing device.
  • the buffer device 2 described hereinafter in detail is compact and easily integrable into existing lines between two upstream 1 and downstream machines 3. It also advantageously makes it possible to transfer an unconsolidated N fibrous web that can be thick without subjecting significant modification to the structure of the sheet, and in particular without compression of the sheet. This buffer device 2 can also be used to transfer fibrous webs N of width.
  • the crosslapper 1 is known per se and its structure will not be detailed. For a complete understanding of the structure and operation of the crosslapper 1, one skilled in the art can refer for example to the text of the international patent application WO 92/21799 .
  • the crosslapper 1 allows, from a nonwoven web of fibers W ( figure 3 ) which is transported to the entry E of the crosslapper by an endless conveyor belt 10, to produce at the exit S a multi-layered fibrous sheet N, by folding the web W on a surface 11a of formation and transport of the tablecloth.
  • This surface 11a of formation and transport of the web N is formed by the upper end of an endless conveyor belt 11 and is driven in a transverse direction ( Figure 3 / arrow K) to the longitudinal direction of the web W at a linear velocity V1 (t). More particularly, this endless transport belt 11 is wound on guide rollers, including a downstream guide roller 12, which may for example be a motor roller driven in rotation by a motor or geared motor M1 at a rotational speed. ⁇ 1 (t).
  • the spreader-lapper 1 usually comprises a lower carriage (not shown) for unwinding the web W on the forming surface 11a.
  • This carriage is movable in translation, and is equipped with motorized drive means for moving it in translation alternately in two opposite directions D and G.
  • this carriage is driven with a translational movement back and forth in opposite directions D and G, so as to deposit the nonwoven web W on the forming surface 11a by folding it alternately on itself.
  • a thick, unconsolidated non-woven multilayer nonwoven web N formed of a plurality of transverse and alternating plies V overlapping in the direction of displacement K of the surface 11a of formation of the web.
  • This sheet N is conveyed at the output of the crosslapper 1 by the conveyor belt 11 at a linear speed V1 (t) to a delivery zone Zd of the transport surface 11a, at which the tablecloth The non-woven fabric N leaves the transport surface 11a and is transferred to the inlet of the buffer device 2.
  • This delivery zone Zd is located at the periphery of the downstream guide roller 12.
  • the speed V1 (t) of the conveyor belt 11 is not constant, but varies cyclically in synchronism with the speed of movement of the aforementioned unwinding carriage of the crosslapper.
  • V1 (t) the speed of the conveyor belt 11
  • two examples curves C1 and C2 of linear velocity profiles V1 (t).
  • Phase I corresponds, for example, to a going of the unwinding carriage (for example in the direction G) and phase II corresponds to a return of the unwinding carriage (for example in the direction D).
  • the linear speed V1 (t) varies sinusoidally in time, between a maximum speed Vmax and a minimum speed Vmin which, in the particular case of the curve C1, is zero.
  • Vmin 0
  • Curve C2 illustrates another linear velocity profile V1 (t) cyclic sinusoidal type, which is centered on the same average speed value as the speed profile C1, but for which the maximum value Vmax is lower and the minimum value Vmin is not zero.
  • the web N is taken up by the buffer device 2, which makes it possible to automatically adapt the length of travel of the web so as to automatically compensate for the speed variations V1 (t) of the web.
  • fibrous N at the output of the crosslapper 1 and to transfer the web N to the input of the downstream processing machine 3 at a predetermined speed V2 (t) between the maximum values Vmax and minimum Vmin of the linear velocity V1 (t).
  • this linear speed V2 (t) is constant and substantially equal to the average speed of the linear speed V1 (t) of the conveyor belt 11 of the crosslapper N.
  • the downstream conveyor belt 11, the upstream belt conveyor 20 and the adjusting means 21 form a buffer system according to the invention.
  • the belt conveyor 20 comprises an endless conveyor belt 200 which is wrapped around two guide rollers: a motor guide roller 201 and a mad upstream guide roller 202.
  • the motor roller 201 is located at the output of the buffer device 2, and is equipped with a motor or gear motor M2 for driving in rotation at a speed of rotation ⁇ 2 (t) predefined corresponding to the aforementioned linear speed V2 (t)
  • the idler roller 202 is located at the recovery zone Zr at the inlet of the buffer device 2.
  • the motor or geared motor M2 of the roller 201 is slaved in speed so that the aforementioned linear speed V2 (t) is substantially equal to the average speed of the linear speed V1 (t) of the conveyor belt 11 of the crosslapper N.
  • the belt conveyor 20 is articulated in rotation about the axis of the motor roller 201, so as to allow adjustment of the inclination of the belt conveyor 20, and thus to allow adjustment of the height position. the upstream guide roller 202, and thereby the height position of the recovery zone Zr of the conveyor belt 200.
  • the means 21 for adjusting the height position of the recovery zone Zr of the belt conveyor 20 comprise, according to the first embodiment of the invention shown in FIGS. figures 1 and 2 at least one lifting assembly 210 210a-belt pulleys 210b, whose belt 210b is mechanically connected to the frame of the belt conveyor 20.
  • This assembly 210 allows to pivot up or down the conveyor belt 20 around the axis of the motor roller 201 at a predefined linear velocity V3 (t), which is a function of the differential between the first velocity V1 (t) of the fibrous N at the output of the crosslapper 1 and the second velocity transport speed V2 (t) of the fibrous web in the buffer device 2.
  • the adjusting means 21 comprise two lifting assemblies 210 positioned respectively on either side of the conveyor belt 200.
  • the lifting assembly or sets 210 are motorized by means of a motor or geared motor M3 ( figure 2 ) which rotates one of the pulleys 210a of each set 210 at a speed of rotation ⁇ 3 (t) predefined, so as to lift or lower in rotation the belt conveyor 20 at the aforementioned linear speed V3 (t).
  • the sheet N is conveyed to the inlet of the buffer device 2 with a linear velocity V1 (t) which varies cyclically over time, with for example one of the sinusoidal profiles of the figure 4 .
  • the belt conveyor 20 is driven by a cyclic vertical oscillating movement (speed V3 (t)) synchronized with the linear speed V1 (t), between a low position and a high position ( represented in dotted lines on the figure 1 ).
  • This vertical oscillating movement makes it possible to automatically adjust the height position of the recovery zone Zr of the conveyor belt 200 and thereby the distance between the delivery zone Zd of the upstream conveyor belt 11 and the recovery zone. Zr of the downstream conveyor belt 200.
  • the travel length of the fibrous web N between the spreader-lapper 1 and the downstream processing machine 3 is thus automatically adjusted, so as to compensate for the speed variations of the web 11 of the spreader-spreader with respect to the linear speed V2 (t) of the conveyor belt 200 of the buffer device 2.
  • the sheet N is transferred at the speed V2 (t) to the input of the downstream machine 3.
  • the linear speed V2 (t) of the conveyor belt 200 of the buffer device 2 is substantially equal to the linear input speed of the downstream processing machine 3.
  • the transport band 200 when the linear velocity V1 (t) of the tablecloth fibrous output of the crosslapper 1 is equal to the linear velocity V2 (t) of the transport band 200 of the buffer device 2, the transport band 200 is in the high position ( Figure 1 / height Hmax of the recovery zone Zr), which corresponds to a minimum path length of said fibrous web N.
  • V1 (t) is greater than V2 (t)
  • the transport band 200 of the buffer device 2 is lowered at speed V3 (t) to a low position ( Figure 1 / height Hmin of the recovery zone Zr), which corresponds to a length of the maximum path of said fibrous web N.
  • This low position again corresponds to a linear velocity V1 (t) of the fibrous web at the exit of the spreader.
  • the recovery zone Zr of the conveyor belt 200 is situated substantially at the same height and in the extension of the surface of the upper strand 11a of the conveyor belt 11 of the upstream machine 1 (crosslapper).
  • the buffer device 2 may comprise one or more jacks 203 (visible only on the figure 1 ) that support the belt conveyor 20 and take some of the load of the conveyor belt 20 during its descent movement. It is preferably pneumatic or hydraulic cylinders. These jacks 203 make it possible to obtain a better balance of the masses of the belt conveyor 20 and thus advantageously to allow the implementation of a less powerful M3 engine.
  • the belt pulley-type lifting assemblies 210 for adjusting the height of the recovery zone Zr of the belt conveyor 20 have been replaced by equivalent adjusting means, comprising two bidirectional linear cylinders 211, by means of example of the electric cylinders, the movable rod T is fixed to the frame of the belt conveyor 20
  • equivalent adjusting means comprising two bidirectional linear cylinders 211, by means of example of the electric cylinders, the movable rod T is fixed to the frame of the belt conveyor 20
  • These cylinders 211 can adjust the inclination of the belt conveyor 20 according to the differential between the speeds V1 (t) and V2 (t).
  • the downstream belt conveyor 11 may be replaced by any other means of transport having a transport surface capable of transporting a nonwoven web at a speed V1 (t).
  • the downstream band conveyor 11 can be replaced by a transport cylinder.
  • the belt conveyor 20 can be replaced by any other equivalent means of transport allowing a take up of a sheet N at an automatically adjustable height and for transporting the sheet at a linear speed V2 (t) predefined.
  • the belt conveyor 20 or equivalent is not necessarily variable inclination, but may for example be designed to be moved in translation vertically as a whole, i.e. including the motor roll 201.
  • the conveyor belt 200 can be wound on a larger number of guide rollers.
  • the conveyor belt 200 may be replaced by at least one transport cylinder whose height position is adjustable.
  • the buffer device 2 may comprise several successive conveyor belts or equivalent, only the upstream conveyor belt at the inlet of the buffer device 2 being for example of variable inclination, so as to adjust the height of its recovery zone Zr of the tablecloth .
  • FIG 7 an alternative embodiment of a buffer system of the invention, which is different from the buffer system of the figure 1 by implementing adjustment means 22 for adjusting the height position of the downstream guide roller 12 on which the endless conveyor belt 11 is wound, as a function of the speed differential V1 (t) and V2 (t ), so as to automatically adjust the distance between the delivery zone Zd of the upstream transport band 11 and the recovery zone Zr of the downstream conveyor belt 20, and therefore the travel length of the nonwoven web N.
  • These adjustment means 22 comprise a lifting assembly 220 of 220a-belt pulleys type 220b, whose belt 220b is mechanically connected to the axis support of the downstream guide roller 12.
  • This assembly 220 makes it possible to translate the guide roller 12 in translation upwards or downwards at a predefined linear speed V3 (t), which is a function of the differential between the first speed V1 (t) of the fibrous N at the output of the crosslapper 1 and said second speed V2 (t) of transport of the fibrous web in the buffer device 2.
  • the adjustment means 22 comprise a motor or geared motor M3 which makes it possible to drive in rotation one of the pulleys 220a of each set 210 at a predetermined speed of rotation ⁇ 3 (t), so as to raise or lower in rotation the belt conveyor 20 at the aforementioned linear speed V3 (t).
  • the sheet N is conveyed to the inlet of the buffer device 2 with a linear velocity V1 (t) which varies cyclically over time, with for example one of the sinusoidal profiles of the figure 4 .
  • V1 (t) linear velocity
  • the roller 12 of the belt conveyor 11 is driven by a cyclic vertical oscillating movement (speed V3 (t)) synchronized with the linear speed V1 (t), between a low position and a high position (shown in dotted lines).
  • This vertical oscillating movement makes it possible to automatically adjust the height position of the delivery zone of the conveyor belt 11 and hence the travel length of the fibrous sheet N between the crosslapper 1 and the downstream processing machine.
  • the sheet N is transferred at the speed V2 (t) to the input of the downstream machine 3.
  • the linear speed V2 ( t) of the conveyor belt 200 of the buffer device 2 is substantially equal to the linear input speed of the downstream processing machine 3.
  • the downstream conveyor belt 20 may optionally be of variable inclination and be equipped with adjustment means 21, as for the variant of the figures 1 or 5 .
  • the downstream transport band 20 may also have no means for adjusting its inclination.
  • the downstream belt conveyor 11 may be replaced by any other means of transport having a transport surface which is capable of transporting a non-woven web at a speed V1 (t), and of which at least a part at the delivery zone Zd is automatically adjustable in position according to the speed differential V1 (t) and V2 (t).
  • the downstream belt conveyor 11 can be replaced by a transport cylinder whose height position is automatically adjustable as a function of the differential speed V1 (t) and V2 (t).
  • the belt conveyor 20 may also be replaced by any other equivalent means of transport for receiving and taking up a web N on a transport surface, and transporting the web at a linear speed V2 (t) predefined.
  • the belt conveyor 20 can be replaced by a transport cylinder.
  • the upper end of the endless conveyor belt 200 downstream which allows the recovery and transport of the nonwoven web N at the speed V2 (t) is inclined upwards.
  • the downstream guide roller 12 of the upstream endless conveyor belt 11 which allows the transport of the nonwoven web N at the speed V1 (t) is positioned near the upper end of the endless conveyor belt 200 and is movable in a plane substantially parallel to said strand upper, between an extreme high position (shown in dashed line) in which the travel length of the nonwoven web N is minimal and a low position in which the travel length of the nonwoven web N is maximum.
  • This guide roller is equipped with means for adjusting its position, as a function of the differential speed V1 (t) and V2 (t), so as to automatically adjust the travel length of the nonwoven web N.
  • These adjustment means are for example of the same type as the adjustment means 22 above.
  • FIG 9 another variant embodiment of a buffer system of the invention.
  • the upper end of the conveyor belt 200 downstream which allows the recovery and transport of the nonwoven web N at the speed V2 (t) is substantially horizontal.
  • the downstream guide roller 12 'of the upstream endless conveyor belt 11' which allows the transport of the nonwoven web N at the speed V1 (t), is positioned near the upper end of the endless conveyor belt. downstream 200, and is movable in a plane substantially parallel to said upper strand, between a far right position in which the travel length of the nonwoven web N is minimal and a leftmost position in which the travel length of the web of nonwoven N is maximum.
  • This guide roller is equipped with means for adjusting its position, according to the differential speed V1 (t) and V2 (t), so as to automatically adjust the travel length of the nonwoven web N. These means for example of the same type as the adjustment means 22 above.
  • the buffer system of the figure 9 may comprise an additional band conveyor 11 "which is arranged such that the nonwoven web N is sandwiched between the two conveyor belts 11 'and 11".
  • the downstream guide roller 12 "of this endless conveyor belt 11” is for example mechanically coupled to the downstream guide roll 12 'of the endless conveyor belt 11', so as to follow the movement of this roll of guide 12 'above the upper run of the downstream conveyor belt 200;
  • the invention is not limited to the use of a device or buffer system at the output of a crosslapper, but may advantageously be used at the output of any upstream device or machine 1 generally delivering a band nonwoven at a non-constant speed.
  • the nonwoven web is not necessarily an unconsolidated thick multilayer fibrous web, such as the web N obtained at the output of a crosslapper 1, but may also be a nonwoven fibrous web or a superposition of webs. fibrous nonwoven.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Advancing Webs (AREA)
EP09370008A 2008-04-28 2009-04-28 Puffervorrichtung und -system sowie Produktionssystem einer Vliesstoffbahn Revoked EP2128314B9 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0802376A FR2930563B1 (fr) 2008-04-28 2008-04-28 Dispositif tampon et systeme de production d'une bande de non-tisse

Publications (4)

Publication Number Publication Date
EP2128314A2 true EP2128314A2 (de) 2009-12-02
EP2128314A3 EP2128314A3 (de) 2010-01-20
EP2128314B1 EP2128314B1 (de) 2011-03-09
EP2128314B9 EP2128314B9 (de) 2011-09-07

Family

ID=40019271

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09370008A Revoked EP2128314B9 (de) 2008-04-28 2009-04-28 Puffervorrichtung und -system sowie Produktionssystem einer Vliesstoffbahn

Country Status (4)

Country Link
EP (1) EP2128314B9 (de)
AT (1) ATE501288T1 (de)
DE (1) DE602009000824D1 (de)
FR (1) FR2930563B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3360990A1 (de) * 2017-02-08 2018-08-15 Trützschler GmbH & Co. KG Speichertisch für einen vliesleger und verfahren zum betrieb eines speichertisches
CN114683672A (zh) * 2022-04-24 2022-07-01 北京量子金舟无纺技术有限公司 一种弹性无纺布生产系统

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3138154A1 (fr) 2022-07-25 2024-01-26 Andritz Asselin-Thibeau Dispositif tampon pour adapter la vitesse de sortie d’une nappe d’un étaleur nappeur à la vitesse d’entrée d’un dispositif de traitement de la nappe en aval de l’étaleur nappeur

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2234395A1 (de) 1973-06-19 1975-01-17 Asselin Robert
FR2677045A1 (fr) 1991-06-03 1992-12-04 Asselin Ets Etaleur-nappeur.
WO2000056960A1 (fr) 1999-03-23 2000-09-28 Asselin Etaleur-nappeur
US20030033691A1 (en) 2001-08-14 2003-02-20 Siegfried Bernhardt Method and apparatus for manufacturing a fiber fleece

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9212215U1 (de) * 1992-09-10 1994-01-13 Autefa Maschinenfabrik GmbH, 86316 Friedberg Vorrichtung zur Herstellung eines Vlieses aus Fasermaterial
EP1381721B1 (de) * 2001-04-23 2006-06-07 AUTEFA automation GmbH Verfahren zum profilieren eines vlieses und profilbildungseinrichtung
FR2905684A1 (fr) * 2006-09-11 2008-03-14 Asselin Thibeau Soc Par Action Procede et systeme de production d'une nappe multicouche, notamment au moyen d'un etaleur-nappeur.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2234395A1 (de) 1973-06-19 1975-01-17 Asselin Robert
FR2677045A1 (fr) 1991-06-03 1992-12-04 Asselin Ets Etaleur-nappeur.
WO1992021799A1 (fr) 1991-06-03 1992-12-10 Etablissements Asselin Etaleur-nappeur
WO2000056960A1 (fr) 1999-03-23 2000-09-28 Asselin Etaleur-nappeur
US20030033691A1 (en) 2001-08-14 2003-02-20 Siegfried Bernhardt Method and apparatus for manufacturing a fiber fleece

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3360990A1 (de) * 2017-02-08 2018-08-15 Trützschler GmbH & Co. KG Speichertisch für einen vliesleger und verfahren zum betrieb eines speichertisches
CN114683672A (zh) * 2022-04-24 2022-07-01 北京量子金舟无纺技术有限公司 一种弹性无纺布生产系统

Also Published As

Publication number Publication date
EP2128314A3 (de) 2010-01-20
EP2128314B1 (de) 2011-03-09
EP2128314B9 (de) 2011-09-07
FR2930563B1 (fr) 2010-04-30
DE602009000824D1 (de) 2011-04-21
FR2930563A1 (fr) 2009-10-30
ATE501288T1 (de) 2011-03-15

Similar Documents

Publication Publication Date Title
EP1036227B1 (de) Verfahren und vorrichtung zur herstellung eines textilen vlieses
EP0704561B1 (de) Vorrichtung zur Abnahme und zum Transportieren mit hoher Geschwindigkeit eines Faservlieses am Ende einer Karde
EP3141640B1 (de) Kreuzleger und verfahren zur steuerung eines kreuzlegers
EP2964825B1 (de) Verfahren und vorrichtung zum ausbreiten eines gewebeartigen textilstoffs
EP1936016A2 (de) Verfahren zur Einstellung der lokalen Eigenschaften eines Vliesstoffs und entsprechende Anlage
EP1163383B1 (de) Vliesleger
EP2128314B1 (de) Puffervorrichtung und -system sowie Produktionssystem einer Vliesstoffbahn
EP2365113B2 (de) Eingangs wagen eines Vlieslegers mit strukturierter rolle
FR2677046A1 (fr) Etaleur-nappeur.
EP1897979A2 (de) Verfahren und System zur Produktion eines mehrschichtigen Vlieses, insbesondere mittels eines Vlieslegers
EP0734985A1 (de) Wickelvorrichtung zur Bildung einer zusammengepressten Faserstoff-Rolle
FR3059344B1 (fr) Dispositif d'etirage d'un voile dispose entre un dispositif de carde et un etaleur nappeur
EP1798175B1 (de) Förderung einer vliesstoffbahn mittels einer förderbahn mit aufsteigendem förderteil und/oder veränderlicher geschwindigkeit
FR2949122A1 (fr) Procede de fabrication d'un complexe multiaxial de nappes realisees a partir de cables craques sous forme de bandes et installation de fabrication
EP1009871B1 (de) Verfahren und vorrichtung zur herstellung eines vlieses und ein kontinuierliches profiltextilerzeugnis
EP0530100B1 (de) Vliesablegeverfahren, Vliesablegeerzeugnis und Vliesbandleger zur Durchführung des Verfahrens
FR2846342A1 (fr) Distributeur de voile a bras incline et dispositif pour produire un non-tisse pose en croix
FR2713892A1 (fr) Appareil de calandrage pour laminer de la pâte.
FR2553102A1 (fr) Etaleur-nappeur
EP0049205A2 (de) Verbinden einer endlosen Folie mit einer kontinuierlich transportierten Matte
BE1009329A6 (fr) Procede et dispositif de faconnage en panneaux d'une bande de matelas de fibres.
WO2024023049A1 (fr) Dispositif tampon pour adapter la vitesse de sortie d'une nappe d'un etaleur nappeur a la vitesse d'entree d'un dispositif de traitement de la nappe en aval de l'etaleur nappeur
FR2828696A3 (fr) Banc d'etirage et installation pour la formation d'un non tisse de fibres
FR2739873A1 (fr) Plieuse de voile et dispositif de fabrication d'un non-tisse
EP3575455A1 (de) System zur bildung eines vlieses

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA RS

17P Request for examination filed

Effective date: 20100226

17Q First examination report despatched

Effective date: 20100325

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: CH

Ref legal event code: NV

Representative=s name: ABREMA AGENCE BREVET ET MARQUES, GANGUILLET

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: FRENCH

REF Corresponds to:

Ref document number: 602009000824

Country of ref document: DE

Date of ref document: 20110421

Kind code of ref document: P

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602009000824

Country of ref document: DE

Effective date: 20110421

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20110309

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110309

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110620

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110309

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110309

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110609

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110309

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110610

LTIE Lt: invalidation of european patent or patent extension

Effective date: 20110309

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110309

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110309

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110309

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110309

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110609

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110309

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110711

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110309

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110309

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110309

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110709

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110430

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110309

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110309

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110309

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

26 Opposition filed

Opponent name: AUTEFA SOLUTIONS GERMANY GMBH

Effective date: 20111209

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110309

REG Reference to a national code

Ref country code: DE

Ref legal event code: R026

Ref document number: 602009000824

Country of ref document: DE

Effective date: 20111209

PLAF Information modified related to communication of a notice of opposition and request to file observations + time limit

Free format text: ORIGINAL CODE: EPIDOSCOBS2

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110309

PLBB Reply of patent proprietor to notice(s) of opposition received

Free format text: ORIGINAL CODE: EPIDOSNOBS3

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 602009000824

Country of ref document: DE

Representative=s name: LEONHARD OLGEMOELLER FRICKE, DE

REG Reference to a national code

Ref country code: FR

Ref legal event code: CD

Owner name: ANDRITZ, FR

Effective date: 20121108

Ref country code: FR

Ref legal event code: CA

Effective date: 20121108

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 602009000824

Country of ref document: DE

Owner name: ANDRITZ ASSELIN-THIBEAU, FR

Free format text: FORMER OWNER: ASSELIN-THIBEAU, TOURCOING, FR

Effective date: 20121126

Ref country code: DE

Ref legal event code: R082

Ref document number: 602009000824

Country of ref document: DE

Representative=s name: LEONHARD OLGEMOELLER FRICKE, DE

Effective date: 20121126

Ref country code: DE

Ref legal event code: R082

Ref document number: 602009000824

Country of ref document: DE

Representative=s name: LEONHARD & PARTNER PATENTANWAELTE, DE

Effective date: 20121126

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110309

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110428

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110309

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110309

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20130428

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130428

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130430

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130430

PLCK Communication despatched that opposition was rejected

Free format text: ORIGINAL CODE: EPIDOSNREJ1

APBM Appeal reference recorded

Free format text: ORIGINAL CODE: EPIDOSNREFNO

APBP Date of receipt of notice of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA2O

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO

APBQ Date of receipt of statement of grounds of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA3O

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: ANDRITZ ASSELIN-THIBEAU

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 8

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 9

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 10

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

R26 Opposition filed (corrected)

Opponent name: AUTEFA SOLUTIONS GERMANY GMBH

Effective date: 20111209

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20180420

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20180418

Year of fee payment: 10

Ref country code: FR

Payment date: 20180420

Year of fee payment: 10

REG Reference to a national code

Ref country code: DE

Ref legal event code: R064

Ref document number: 602009000824

Country of ref document: DE

Ref country code: DE

Ref legal event code: R103

Ref document number: 602009000824

Country of ref document: DE

APBU Appeal procedure closed

Free format text: ORIGINAL CODE: EPIDOSNNOA9O

RDAF Communication despatched that patent is revoked

Free format text: ORIGINAL CODE: EPIDOSNREV1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT REVOKED

RDAG Patent revoked

Free format text: ORIGINAL CODE: 0009271

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT REVOKED

27W Patent revoked

Effective date: 20180925