EP1381721A1 - Method for profiling a nonwoven fabric and profile forming device - Google Patents

Method for profiling a nonwoven fabric and profile forming device

Info

Publication number
EP1381721A1
EP1381721A1 EP20020778850 EP02778850A EP1381721A1 EP 1381721 A1 EP1381721 A1 EP 1381721A1 EP 20020778850 EP20020778850 EP 20020778850 EP 02778850 A EP02778850 A EP 02778850A EP 1381721 A1 EP1381721 A1 EP 1381721A1
Authority
EP
European Patent Office
Prior art keywords
pile
fleece
profile
forming
clamping
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
EP20020778850
Other languages
German (de)
French (fr)
Other versions
EP1381721B1 (en
Inventor
Manfred SCHÄFFLER
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.)
Oerlikon Textile GmbH and Co KG
Oskar Dilo Maschinenfabrik KG
Original Assignee
Autefa Automation GmbH
Oskar Dilo Maschinenfabrik KG
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
Priority to DE20107004U priority Critical patent/DE20107004U1/en
Priority to DE20107004U priority
Priority to DE20117627U priority patent/DE20117627U1/en
Priority to DE20117627U priority
Application filed by Autefa Automation GmbH, Oskar Dilo Maschinenfabrik KG filed Critical Autefa Automation GmbH
Priority to PCT/EP2002/004431 priority patent/WO2002101130A1/en
Publication of EP1381721A1 publication Critical patent/EP1381721A1/en
Application granted granted Critical
Publication of EP1381721B1 publication Critical patent/EP1381721B1/en
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26056949&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1381721(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING 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
    • D04H18/00Needling machines
    • D04H18/02Needling machines with needles
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01GPRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G25/00Lap-forming devices not integral with machines specified above
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING 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
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70Non-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
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING 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
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70Non-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
    • D04H1/74Non-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)
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING 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
    • D04H13/00Other non-woven fabrics

Abstract

The invention relates to a method and a device for profiling a multilayered nonwoven fabric (9, 108) which is positioned by means of a device for laying said nonwoven fabric (3, 102) consisting of at least one nonwoven fabric material (8, 107) which is supplied by a device for producing nonwoven fabric material (2, 103). Said nonwoven fabric material (8, 107) is extended and compressed by means of a profile forming device (1) which is associated with the device for laying nonwoven fabrics (3, 102) or is connected in series therewith, at at least two clamping points (105, 105', 106) which are defined and arranged at a distance between the device for laying nonwoven fabrics (3, 102) and the device for producing nonwoven fabric materials (2, 103). The profile forming device (1) is provided with a control system (7) which can be connected to the control system of the device for laying nonwoven fabrics (3, 102) or integrated into the same. A buffer device (6) for the nonwoven fabric (9, 108) is arranged behind the device for laying said nonwoven fabric (3, 102).

Description


  



   Process for profiling a fleece and
Profile-forming device The invention relates to a method for profiling a multi-layer fleece and a profile-forming device for such a fleece with the features in the preamble of the main method and device claim. 



  From EP-A-0 315 930 it is known that the thickness or 



  To change the density of the multi-layer fleece deposited by a nonwoven on its take-off belt by relative changes in the exit speed of the pile on the laying carriage and the driving speed of the laying carriage.  If the laying carriage moves faster than the pile exits, the pile deposited on the take-off belt is stretched and thinned. 



  Conversely, if the laying carriage runs slower than the pile exit speed, the deposited pile is thickened.  Accordingly, the fleece thins or thickens.  Appropriate control of the laying carriage and pile exit speed allows these effects to be influenced locally and in height, as a result of which the fleece thickness profile with the desired design is created in the fleece layer itself.  WO 97/19209 shows a further developed embodiment. 



  From EP-A-0 371 948 and WO 99/24650 a profile forming device is known which is integrated in the card or card.  The thickness or density of the pile profile emerging from the card is varied by a variable pile decrease on the card. 



  This technology brakes the card and limits the working speed of the entire fiber system.  The changes in the thickness or density of the pile are generated as a function of the respective position of the laying carriage on the nonwoven layer and with a corresponding lead time, so that the nonwoven layer then deposits them at the desired location on the take-off belt.  The fleece thickness change and the fleece thickness profile are therefore generated and determined in front of the fleece layer. 



  From DE-C-43 04 988 it is also known to stretch or compress the pile supplied by the card at a constant speed and constant thickness or density by changing the overall speed level of the nonwoven layer in the transition area between card and nonwoven layer.  If the fleece layer and its infeed belt run faster than the pile delivered by the card, the pile is stretched. 



  Conversely, if the non-woven layer runs more slowly than the pile fed by the card, the pile is braked and jammed or compressed, which increases the thickness or density. 



  It is an object of the present invention to show another and improved possibility of nonwoven profiling. 



  The invention solves this problem with the features in the main method and device claim. 



  The profile-forming technique and the profile-forming device with the drafting device to be connected upstream of the nonwoven layer, preferably a stretching device, has the advantage that the pile thickness is influenced before the pile is deposited on the discharge belt of the nonwoven layer in a defined area and with improved and, in particular, more controllable influencing options. 



  The card can run constantly and produce a pile with constant speed and constant thickness or density, which is favorable for the pile quality. 



  In addition, very high working speeds of 100 m / min and more can be achieved.  The pile fed directly or indirectly to the stretching device is only influenced in the stretching device and is preferably stretched in the process.  This stretching and the associated thinning of the pile can be precisely controlled and influence the pile in a gentle manner.  At the same time, the thickness or density of the pile can be influenced within wide limits by means of a suitable design of the stretching device, so that there are very far-reaching control options for the thickness or density of the fleece running out from the nonwoven layer. 



  The drafting device has the advantage that a precise definition of the drafting length can be created by at least two spaced-apart clamping points, within which the pile supplied is influenced and, in particular, stretched in the desired manner to form drafting.  Warpage formation can be controlled better and more precisely by the defined warpage length.  The pile delay can thus be controlled more precisely according to position and size in the pile.  In this way, the different requirements of different pile types and pile thicknesses can also be taken into account. 



  The size of the warping length and in particular the stretching length can also be influenced and changed here by means of movable clamping points.  This allows an optimal adaptation to different types of pile and pile thickness.  Elastic piles, which usually also have a larger pile thickness, are preferably treated with a short drafting or stretching length.  This results in a plastic deformation of the pile, which is not canceled again after leaving the clamping points and the drafting device, but remains in the pile at the desired point and with the desired thickness. 



  In the case of elastic and thick floras, it is also advisable to make the speed difference between the conveying speeds at the clamping points relatively large.  For stiffer and / or thinner webs with larger warping or.  Stretch lengths to be worked.  As the sensitivity of the pile increases, the warping or stretching length used to form the warp generally also increases. 



  It is also possible to adjust the length of the delay or 



  Subdivide the stretch length into several sections in order to achieve even greater distortions or  To achieve conveyor speed differences at the clamping points. 



  In order to achieve the desired clamping effects and speed differences, driven clamping rollers are preferably used at the clamping points, which can be adjusted to the desired dimension on the pile and on a counter-roller or a conveyor belt or the like which is also driven.  The clamping points can be created in different ways and at different places, depending on the design of the fleece layer, the pile section or the pile generator. 



  In a preferred embodiment, the stretching device consists of a plurality of roller arrangements, in particular a pair of stretching rollers, or a plurality of conveyor belt sections with adjustable pinch rollers, which clamp the pile between them and thereby stretch with continuous increases in speed. 



  Correspondingly, the speed level of the downstream fleece layer also changes, so that the pile is influenced primarily in the stretching device and the fleece layer takes over the pile from the stretching device essentially without any further pile change due to the speed adjustment.  



  The stretching device is advantageously controlled via the pile path and depending on the position of the laying carriage.  The pile path is always the same with a suitable design of the fleece layer between the entry point and the exit point on the laying car, because the changes in the way of the laying car due to corresponding changes in the way of the uppercarriage and the infeed conveyor or  the belt loop between the upper and the laying carriage can be compensated.  This results in a particularly simple and precise control option.  In addition, product-specific changes in the laying width, the number of layers and the like can also be taken into account. 



  The stretching device has the advantage that it can not only be attached to new fleece layers and can even be integrated in place of the previous feed belt.  The stretching device can also be retrofitted to existing fleece layers without any problem and without increasing space requirements.  The existing card or card can also continue to be used.  Alternatively, it can also be assigned to pile producers or integrated into an overall system.  It is not necessary to convert the entire nonwoven system as in EP-A-0 371 948 or WO 99/24650.  The stretching device also requires only a small amount of space and construction.  It represents a particularly cost-effective, economical and, at the same time, highly efficient option for targeted nonwoven profile formation. 



  The profile forming device can furthermore have a compensating device for the nonwoven which is to be arranged after the nonwoven layer and which ensures a constant dispensing speed of the nonwoven to downstream machines, in particular a consolidation device, preferably a needle machine.  This compensates for the speeds of the take-off belt, which fluctuate with the speed level of the nonwoven layer during the formation of the profile. 



  The compensation device can also be integrated into new fleece layers or retrofitted to existing fleece layers.  It also requires only a small amount of construction and space.  It can be controlled easily and precisely.  It is also inexpensive and economical. 



  Overall, the claimed profile forming device has the advantage that it can be used with existing fiber treatment systems without any problems together with a new fleece layer or an existing fleece layer. 



  Neither the card nor the needle machine need to be adjusted or changed.  These machines can be designed as standard components, which is particularly inexpensive and economical.  The entire profile formation of the nonwoven takes place in the area of the nonwoven layer, but the nonwoven layer itself does not have to make any contribution to this and can also be designed as an inexpensive standard machine. 



  Advantageous refinements of the invention are specified in the subclaims.  



  The invention is shown in the drawings, for example and schematically.  In detail: FIG. 1 shows a profile formation device with a
Fleece layer and a pile generator, Figure 2: a plan view of the profile forming device and the fleece layer, Figure 3 :.  an end view of the profile forming device with the fleece layer and a downstream
Solidification device according to arrow III of
Figure 2, Figure 4 and 5: different speed and
Flordickend diagrams, Figure 6: a variant of the profile formation device of
Figure 1 with a simplified
Drafting device, Figure 7: an enlarged view and a variant of the drafting device of Figure 6, Figure 8: another variant of the drafting device with subdivided conveyor sections, Figures 9 and 10: further modifications of the
Distortion device of Figure 8, Figure 11:

   a profile forming device according to Figure 1 with a variant of the drafting device of
FIGS. 8 to 10, FIGS. 12 and 13: detailed representations of the
Distortion device of Figure 11, Figure 14: a variant of the profile formation device of
Figure 3 and Figure 15: an enlarged detail view of the area
XV of Figure 14. 



  In Figures 1 to 3.6 to 10 and 11 to 15 in various embodiments, a fiber treatment system or fleece manufacturing device (101) is shown, which from a pile generator (2,103), for.  B.  a card or card, a downstream fleece layer (3, 102) and a downstream consolidation device (4), e.g.    B.     a needle machine.  The fleece layer (3, 102) is associated with a profile-forming device (1) by integration or retrofitting, which consists at least of a drafting or stretching device (5, 104) and possibly  there is also a compensating device (6). 



  The invention relates to the profiling method and the profile forming device (1).     In addition, however, it also records the fleece layer (3, 102) equipped with a profile-forming device (1) and the entire fiber treatment system or fleece production device (101). 



  One or more single-lane thin sheets (8, 107) are formed from a loose fiber material by the pile generator (2, 103) and are fed to the fleece layer (3, 102) in the direction of pile travel (23).  The fleece layer (3, 102) deposits the individual pile (8, 107) or the several sheets (not shown) on its transversal discharge belt (17, 116) to form a multi-layer fleece (9, 108).  



  The fleece (9, 108) then passes in the fleece running direction (24) into the subsequent consolidation device (4), where it is solidified in a suitable manner by needles or by sprayed-on chemicals, by thermal influence or the like.  The consolidation device (4) can be of any suitable type. 



  It is preferably a needle machine shown in the drawings. 



  The fleece layer (102) can be designed in any suitable manner.  In the embodiment shown in Figures 1, 6 and 11, it is a so-called fleece belt layer, which has two endless and rotating driven conveyor belts (114, 115), which are guided by two main carriages, namely an upper carriage (110) and a lower laying carriage (16, 111) and in the area between the two main carriages (110, 16, 111) pick up and guide the pile (8, 107) between them.  In the embodiments shown, the fleece layer (3, 102) runs in the same direction and the two main carriages (110, 16, 111) always move in the same direction.  Alternatively, it can also be an opposing fleece layer with the main carriage (110, 16, 111) moving in opposite directions, as described for.  B.  is shown in DE-C 43 04 988. 

   The fleece layer (3, 102) can also have one or more auxiliary carriages (112) that keep the conveyor belts (114, 115) stretched. 



  The pile (8, 107) fed by the pile generator (2, 103) via the profile-forming device (1) and its drafting or stretching device (5, 104) is deposited and paneled by the reciprocating laying carriage (16, 111) on a withdrawal belt (17, 116) extending transversely to the laying carriage movement , whereby a multi-layer fleece (9, 108) is formed on the take-off belt (17, 116) from the single-layer pile (8, 107).  



  The pile (8, 107) is taken up in the fleece layer (3, 102) on an integrated feed belt (109) or upstream infeed belt (15) in the pile direction (23) and, for example, in the open position is fed to a belt inlet (113) on the superstructure (110).  In the shown and preferred embodiment, the feed belt (109) is a section of the one conveyor belt (114).  The second conveyor belt (115) is added at the belt inlet (113), an inlet funnel being formed on the superstructure (110) between the conveyor belts (114, 115).  In the embodiment shown, the nonwoven layer (3, 102) corresponds to the embodiment known from WO 97/19209.  Alternatively, it can also be designed in accordance with EP-A-0 517 568 or WO 91/156018. 

   In a further variant, it can also be a so-called wagoner, in which the conveyor belts are not guided together over both main wagons. 



  The fleece layer (3,102) has pile-leading drives which are connected to a common control (7,131). 



  These pile leading drives, which are shown in FIG. 1 with motors M and are only indicated by arrows in FIG. 6 for the sake of clarity, exist, for.  B.  one or more drives for the travel movements of the uppercarriage (110), the laying carriage (16,111) and the  existing auxiliary car (112).  The pile-leading drives also include one or more drives that set the conveyor belts (114, 115) in rotation and drive them.  The drive of the take-off belt (17, 116) is also one of the leading drives. 



  The pile generator (2, 103) can also be of any type and configuration.  It can e.g.  B.  to be a card or card.  The pile generator (2, 103) has a pile removal device (117) of any design, with which the pile is removed from a tambour or the like and transferred to the nonwoven layer (102) via the preferably interposed pile feeder (10) or conveyor section (120). 



  There are various options for the formation of the pile removal device (117).  In the variant shown in FIG.  B.  a so-called hacker (119) is available for the pile acceptance.  In the variant from FIGS. 7 to 10, one or more take-off rollers (118) are provided for the pile removal instead of the chopper. 



  The profiling device (1) is provided for profiling the fleece (9, 108) formed in the fleece layer (3, 102).  It includes a drafting or stretching device (5, 104) for the pile (8, 107), which is arranged between the fleece layer (3, 102) and the pile generator (2, 103).  The profile forming device (1) can also have a compensating device (6) for the fleece (9), which is arranged between the fleece layer (3, 102) and the consolidation device (4). 



  The stretching device (5, 104) serves to change the thickness or  Density of the pile (8,107), which is fed by the pile generator (2,103), preferably with a constant thickness and constant speed, via a pile feeder (10).  The stretching device (5,104) preferably thins the pile (8,107).  With the appropriate design, she can  also compress and compress or  thicken.  The profile forming device (1) has a control (7) to which the fleece layer (3, 102) is also connected.  The stretching device (5, 104) and the fleece layer (3, 102) are controlled jointly, the profile formation of the fleece (9), which is explained in more detail below, preferably being controlled via the pile path.  



  The controller (7) can in new machines and systems in the controller (131) of the nonwoven layer (3,102) or the control of the nonwoven system z.  B.  be integrated as a software module.  However, it can also be arranged separately and only connected to the existing control (131) of the fleece layer (3, 102). 



  The stretching device (5) in the variant from FIGS. 1 to 3 has a conveyor line with a plurality of roller arrangements (11, 12, 13) arranged one behind the other in the pile running direction (23) with controllable drives M5, M4 and M3.  In the embodiment shown there are three roller arrangements.  But it can also be more or less, such as.  B.  shown below in Figures 6 and 7. 



  The roller assemblies (11, 12, 13) form three clamping points and serve to thin and stretch the pile (8).  They each consist of opposing pairs of rollers that clamp the pile (8) between them and convey them at an adjustable speed.  The drives M5, M4 and M3 preferably drive both rollers of the roller pairs (11, 12, 13). 



  Alternatively, you can also use only one roller, e.g.  B.  drive the lower roller of the roller pairings (11, 12, 13), the associated upper rollers each being designed as freely rotatable, rotating clamping rollers. 



  The rollers can be designed as smooth-walled rollers.  However, they can also have a roughened surface or a surface with stretching needles. 



  One or more guide rollers (14) with their own drives M1, M2, which likewise act on the pile (14), can be arranged in front of and / or behind the roller arrangements (11, 12, 13).  The input-side guide roller (14) is arranged above the pile feeder (10) and in particular above the rear clamping roller of the pile feeder (10).  This guide roller (14) and its drive M2 are at the speed of the pile feed (10) or  the delivery speed of the pile generator (2) coupled.  The pile (8) is clamped and conveyed between this guide roller (14) and the pile feeder (10). 



  The output-side guide roller (14) is assigned with its drive M1 to the infeed belt (15) of the fleece layer (3) and is preferably located above the front deflection roller of this infeed belt (15).  The drive M1 is coupled to the speed or the drive of the infeed belt (15), so that the guide roller (14) and the infeed belt (15) always run synchronously and convey the pile (8) that is clamped between them. 



  The stretching device (5) can be switched back and forth between a normal throughput stage and one or more stretching stages.  In the pass stage there is no stretching of the pile (8) so that the pile (8) retains its thickness and density determined by the pile generator (2).  In this pass stage, the roller arrangements (11, 12, 13), the guide rollers (14) and also the infeed belt (15) of the nonwoven layer (3) have a preferably constant speed level adapted to the pile feed speed of the pile generator (2).  Here, the rollers, belts and other conveying devices for the pile (8) arranged one behind the other in the pile running direction (23) can have a gradually increasing speed level in order to keep the pile (8) under a slight pull at all times, but without significantly stretching it , 

   The other drives M of the nonwoven layer (3) are then set to the normal laying function via the control (7), so that a multi-layer nonwoven (9) is also present with the pile (8) deposited on the discharge belt (17) with a constant thickness constant thickness or density is formed.  



  In the stretching stage or stages, the pile (8) is thinned and stretched in the stretching device (5).  The drives M5, M4 and M3 of the roller arrangements (11, 12, 13) in the pile running direction (23) are set to gradually increasing speeds.  The consequence of this is that the pile (8) on the pile feeder (10) and the guide roller (14) there is transported faster, starting from one to the next roller arrangement (11, 12, 13), and is thus put under tension and thus stretched.  The clamp connection between the roller pairs ensures that it is conveyed and held securely. 



  The fleece layer (3) is coupled in particular with its infeed belt (15) and on the other pile-leading drives M via the control (7) to the drive M3 of the last roller arrangement (13).  The guide roller (14) on the output side is also coupled to its drive M1.  The infeed belt (15) and the guide roller (14) thus run just as quickly or only slightly faster than the last roller arrangement (13) of the stretching device (5) in the interest of a constant slight tensile load. 



  By means of the stretching device (5), in the stretching stage or sections, thinnings are formed in the pile (8), which are laid down by the laying trolley (16) at predetermined locations of the laying width on the discharge belt (17). 



  The coordination and the advance determined via the path control are determined via the control (7) and the profile formation program which is stored and executed there. 



  Figure 4 illustrates these processes in a diagram in which the speeds of the individual drives, i.  H.  the peripheral speeds of the respective conveying means and the pile thickness d are plotted over the path s.  As the diagram shows, the speeds V of the pile feed (10) and the roller drives M, M1 to M5 are initially the same in the pass stage.  Accordingly, the thickness d of the pile (8) is also constant.  In the stretching stage, the speeds V of the roller drives M1, M3, M4, M5 and the pile-driving drives M of the nonwoven layer (3) are increased, a predetermined acceleration ramp being followed.  The individual roller speeds are gradually increased.  The roller drives M1 and M3 run faster than the roller drive M4 and this in turn faster than the roller drive M5. 

   The roller drive M2 and the speed of the pile feed (10) remain constant.  These changes in speed stretch and thin the pile (8), which is reflected in the reduction in pile thickness d shown in the diagram. 



  The stretching step remains constant for a distance s specified by the profile formation program and is then reduced again, the increased roller speeds being reduced back to the level of the throughput step.  Accordingly, the pile thickness d increases again to the original level. 



  The speed and pile thickness changes shown in the diagram in FIG. 4 can in turn be varied in steps or continuously upwards or downwards in order to produce changes in the pile thickness d of different sizes.  Depending on the program specification, the drawing stages can also be present over a longer or shorter distance s. 



  The fleece layer (3) deposits the pile thickness changes at the predetermined positions of the laying width, forming the multi-layer fleece (9).  In this case, an identical or a different laying behavior can be carried out for the forward and return movement of the laying carriage (16).  



  The pile thicknesses are preferably reduced, particularly in the edge areas of the fleece (9), which preferably occurs with each pile layer deposited on the discharge belt (17) when the laying carriage (16) moves forward and backward on both fleece edges.  This gives the multilayer fleece (9) a convex profile, in which the fleece thickness is greater in the middle than at the edges. 



  In addition, profile changes can be made in the fleece area in between. 



  The formation of a nonwoven profile can serve different purposes.  On the one hand, it can be used to react to peculiarities of the consolidation device (4), in particular a needle machine.  Needle machines usually have the peculiarity that due to the necessary warping, the fleece (9) jumps in over the width and this width shrinkage leads to thickening in the edge area, as a result of which the end product emerging from the needle machine (4) has an uneven thickness or density over the laying width Has.  This is counteracted by the formation of the aforementioned fleece profile.  In addition to these marginal effects, other inhomogeneities of the needle machine (4) or another consolidation device generated within the laying width can also be taken into account. 

   Alternatively, the non-woven end product coming from the consolidation device (4) can be given a deliberately different thickness in places instead of a uniform thickness by means of the profile forming technique, if this end product is to have a certain cross-sectional profile for further processing. 



  In the embodiment shown, the compensating device (6) consists of an endless storage belt (18) with a variable sag of the upper run (19) and two separately adjustable drives M6 and M7, each for a roller (20, 21) at the rear and front ends of the storage belt (18).  With the compensating device (6) fluctuations in the discharge speed of the discharge belt (17) are compensated for, which are due to the above-described stretching of the pile (8).  In this way, the fleece (9) is fed to the consolidation device (4) connected downstream in the running direction (24) and its fleece feed (22) is fed at at least a largely constant speed and delivery rate.  The fluctuations in delivery of the fleece layer (3) are compensated for by a variable sag of the upper run (19). 



  FIG. 5 shows a speed diagram for this. 



  The drive M6 of the rear roller (20) is coupled to the discharge speed of the discharge belt (17) and swings up and down with its speed. 



  In contrast, the drive M7 of the front roller (21) is set to a preferably constant speed which corresponds to the mean value of the speed fluctuations of the drive M6. 



  If the stretching device (5) thins the pile and the fleece layer (3) with its discharge belt (17) runs correspondingly faster, the drive M6 also runs faster than the drive M7.  This creates the maximum sag of the upper run (19) shown in FIG.  The fleece (9) released by the discharge belt (17) is stored in the upper strand loop.  As soon as the stretching device (5) is switched back to the continuous stage and the speed of the discharge belt (17) is reduced accordingly, the speed of the drive M6 also decreases until it reaches its mean value and is equal to the speed of the drive M7.  At this stage, the sag of the upper run (19) assumes the middle position shown in FIG. 3, the fleece (9) being conveyed through without storage. 

   When the stretching device (5) has reached the throughput stage and the discharge belt (17) has reached the throughput speed and thus the minimum speed, the drive M7 of the front roller (21) runs faster than the now minimum speed of the drive M6.  As a result, the upper run (19) is tightened.  The amount of fleece previously stored in the large sag is removed and the compensation device (6) emptied.  The movements of the upper run (19) are correspondingly compensated for by tightening or sagging the lower run of the storage tape (18), which is not shown in FIG. 3 for reasons of clarity. 



  In the setting of the profile-forming device (1) described, stretching and thinning are formed in the pile (8) and accordingly also in the deposited multi-layer fleece (9).  In this way, most of the applications of profile formation that occur in practice can be covered.  The maximum fleece thickness is determined by the normal and unaffected pile thickness. 



  Alternatively, it is also possible to have the stretching device (5) continuously work on stretching the pile (8) on average and to produce pile thinning by further stretching and speed increase and pile thickening by reducing the speed to the throughput stage.  It is also possible to design the stretching device (5) differently and, if necessary, to stow and thicken the pile (8) or  to condense.  This allows both thinning and thickening of the pile (8) to be produced.  The compensation device (6) is adjusted accordingly in these cases. 



  FIG. 6 shows a variant of the profile-forming device (1) and the drafting or stretching device (5, 104) from FIGS. 1 to 3.  The fleece manufacturing device (101) can also have a conveyor section (120) between the fleece layer (102) and the pile generator (103).  



  Alternatively, this conveyor section (120) can also be integrated into the pile feed of the fleece layer (102). 



  The drafting device (104) is arranged between the fleece layer (102) and the pile generator (103) and, in the same way as the previously described stretching device (5) from FIGS. 1 to 3, has two or more clamping points (105, 105 ', 106) arranged in this area for the pile (107) supplied by the pile generator (103).     The clamping points (105, 105 ', 106) form between them a defined warping length x, y for the pile (107), the pile (107) being conveyed at the clamping points (105, 105', 106) at different speeds. 



  The drafting device (104) is preferably designed as a stretching device, the pile (107) being conveyed at a higher speed at the clamping point (105) facing the fleece layer (102) than at the clamping point (106) facing the pile generator (103). 



  The nip points (105, 105 ', 106) are formed by pinch rollers (124, 125, 126, 127, 128, 129), which are supported for delivery and have their own controllable drive. 



  The drives of the pinch rollers (124, 125, 126, 127, 128), which are arranged in the area of the nonwoven layer (102), are connected to its common control (131).  The fleece-laying clamping rollers (124, 125, 126, 127, 128) are linked to the speed level of the pile-guiding drives and the height can be changed uniformly with this speed level.  At the other nip (106) facing the pile generator (103), the pinch rollers (129) or the take-off roller (118) are essentially at the conveying speed of the pile generator (103) or  the pile removal device (117) driven.  This speed is usually constant, but can alternatively also vary.  



  The conveyor section (120) in the embodiment of FIGS. 6 and 7 is designed as a revolving single conveyor belt which extends between the pile removal device (117) and the feed belt (109).  The conveyor belt (120) is guided over end pulleys (130) and is driven.  The drive speed can be constant or vary. 



  You can e.g.  B.  correspond to the delivery speed of the pile removal device (117). 



  In the embodiment of FIG. 6, the one clamping point (105) is located on the nonwoven layer (102) and on its feed belt (109).    The associated pinch roller (124) is arranged opposite one another at the deflection point of the feed belt (109) and the deflection roller there.  The pinch roller (124) is conveyed at the same circumferential speed as the feed belt (109) or  the conveyor belt (114) driven.  The pile (107) is clamped between the pinch roller (124) and the conveyor belt (109) and conveyed on both sides at the same speed.  The engine or  The drive of the pinch roller (124) is connected to the controller (131). 

   The pinch roller (124) also has an infeed device with which it transversely to the feed belt (109) or  can be moved to the adjacent deflection roller in order to be able to set the required size of the clamping gap for the pile (107). 



  The other clamping point (106) is located at the rear end of the conveyor belt (120) facing the pile generator (103).     It is formed by a likewise driven and deliverable clamping roller (129), which is arranged opposite the rear deflection roller (130).  The drive of the deflection roller (129) can also be connected to the common control (131).  The same applies to the drive of the conveyor belt (120) (not shown).  In the embodiment shown in FIG. 6, the conveyor belt (120) and the deflecting roller (129) move at the delivery speed of the pile generator (103) or run if necessary  to create a light permanent train slightly faster. 



  To form the desired pile distortion and in particular the pile stretching, the pile leading drives of the fleece layer (102) and the pinch roller (124) on the feed belt (109) are raised together and uniformly in their speed level, while the conveying speed of the conveyor belt (120) and the pinch roller (129 ) remain constant.  The pile (107) located on the conveyor section (120) is stretched and thinned accordingly by this speed difference.  A defined drafting length x is formed by the clamping points (105, 106) at which the pile is clamped, the pile (107) after leaving the drafting device (104) on the way to the tape inlet (113) the draft or  keeps the aspect ratio. 



  Time and duration of the pile delay or  the stretch depends on the desired shape of the multi-layer fleece (108).  They are generated with a lead time so large that they are deposited at the desired location on the take-off belt by the laying carriage (111).  The distance from the clamping point (105) to the exit point on the laying carriage (111) is constant. 



  FIG. 7 shows a variant of the drafting device from FIG. 6.  The nip (105) is located at the front end of the conveyor section (120) facing the fleece layer (102) and is formed by an adjustable and driven nip roller (125) arranged here. 



  In addition,  the above-described pinch roller (124) may also be present on the feed belt (109).  The rear clamping point (106) is located on the pile removal device (117) and is formed by its take-off rollers (118) on the outlet side, which also clamp the pile (107) between them and convey them at the rate of discharge of the pile generator (103).  In this variant, the conveyor belt (120) is driven at a variable speed, its speed level changing uniformly with the speed level of the pile-driving drives of the fleece layer (102). 

   To generate a pile stretch, the pinch roller (125) and the conveyor belt (120) run synchronously with the pile-driving drives of the fleece layer (102) at the desired height for the profiling and for the desired duration faster than the delivery speed of the pile generator (103). 



  In a variation of the previously described function of the stretching device (104) from FIG. 7, the stretching length x can also be formed between the pinch rollers (124, 125) and the associated deflecting rollers.  To create a pile stretch, the pinch roller (124) and the feed belt (109) run synchronously with the pile leading drives of the nonwoven layer (102), while the pinch roller (125) and the conveyor belt (120) run synchronously with the pile generator (103). 



  FIG. 8 shows a further variant of the drafting device (5, 104), which is based on the variant of FIGS. 1 to 3.  Instead of the roller pairs (11, 12, 13) from FIGS. 1 to 3, the conveyor section (120) in FIG. 8 is divided into a plurality, preferably three, of the conveyor sections (121, 122, 123).  Each conveyor section (121, 122, 123) is assigned at least one deliverable and driven nip roller (126, 127, 128), these nip rollers preferably being located on the front end of the conveyor section facing the fleece layer (102). 

   The conveyor sections (121, 122, 123) are formed by short conveyor belts rotating in a triangle over deflection rollers (130), the drive motors M3, M4, M5 of which can be controlled individually and preferably also to the common control (131) of the fleece layer (102) and the profile forming device ( 1) are connected. 



  With this subdivided conveyor section (120), the size and position of the clamping points (105, 106) and the stretching length x defined thereby can be changed.  In the variant shown, the rear clamping point (106) is stationary and, as in FIG. 7, is formed by the draw-off rollers (118) of the pile removal device (117).  The front nip (105), on the other hand, is variable in location along the conveyor path (120) and is formed by the nip roller (126, 127, 128) that is delivered in each case.  In the embodiment shown in FIG. 8, the middle clamping roller (127) is advanced to its conveyor belt section (122) and forms the clamping point (105).  The other two adjacent pinch rollers (126, 128) are lifted off and have no conveying contact with the pile (107). 

   The drives of the pinch rollers (127) and the conveyor belt section (122) at the nip point (105) are coupled to the pile leading drives of the fleece layer (102) and are raised and lowered synchronously and uniformly in the level to produce the desired pile distortion.  The conveyor belt section (121) closest in the pile conveying direction is also raised and lowered synchronously in the speed level in the same way.  The third conveyor belt section (123) can here also with the speed level of the fleece layer (102), but alternatively also with the discharge speed of the pile collector (103) or  the take-off rollers (118) or in a further modification with a differential speed between the conveying speeds at the nip points (105, 106). 



  The delay device (104) of FIG. 8 can also be operated in other configurations and functions.  FIGS. 9 and 10 show two variants, in which all the clamping points (105, 105 ', 106) are located in the region of the conveyor section (120) or  the conveyor sections (121,122,123).  In the variant of FIG. 9, the two clamping rollers (126, 128) on the end are fed to the pile (107) and to their associated conveyor belt sections (121, 123) and form the clamping points (105, 106).  The middle pinch roller (127) is raised and has no pile-promoting contact.  The front clamping roller (126) in the pile feed direction and its conveyor belt section (121) are coupled to the pile-guiding drives of the nonwoven layer (102) and move up and down synchronously with them at the speed level. 



  The rear pinch roller (128) and its conveyor belt section (123) can be adjusted to the delivery speed of the pile generator (103) or  be coupled to the pile removal device (117) and move with it.  The speed level at the clamping point (106) can, however, also be set to a different value and higher than the delivery speed of the pile generator (103). 



  In a variant of FIG. 9, not shown, it is also possible to shorten the warping or stretching length x by moving the two front pinch rollers (126, 127) to the pile (107) and lifting the rear pinch roller (128).  With the drafting device (104) of FIG. 8, the size and the position of the drafting length or  Stretching length x can be changed as required. 



  FIG. 10 shows a further variant, in which all three clamping rollers (126, 127, 128) are in conveying engagement with the pile (107) at three clamping points (105, 105 ', 106).  In this variant, the warping or stretching length is divided into two sections x and y, with which different stretching is generated.  The middle pinch roller (127) and its conveyor belt section (122) run faster than the rear pinch roller (128) and its conveyor belt section (123). 

   The front pinch roller (126) and its conveyor belt section (121) in turn run faster than the middle pinch roller (127) and its conveyor belt section (122).     The cascading speed levels are also determined by the common control (131) and their gradation is raised and lowered uniformly with the speed of the pile-driving drives of the fleece layer (102).  In all the embodiments shown, the warping and in particular the pile stretching is canceled again as soon as the pile-leading drives of the fleece layer (102) and the synchronously coupled pinch rollers again run essentially at the delivery speed of the pile generator (103).  In this case, the pile (107) is conveyed continuously and without warpage. 



  FIGS. 11 to 15 show a third variant of the profile forming device 1 with modifications of the drafting or stretching device (5, 104) and the compensating device (6). 



  In the fleece layer (3, 102) of FIG. 11, the stretching device (5, 104) is integrated into the fleece layer and its housing at the inlet area (33) in a space-saving manner and takes the place of the previous inlet belt (15) of FIG. 1.  As a result, the modified fleece layer (3, 102) has essentially the same width as a conventional machine and can therefore also be retrofitted and integrated into an existing fiber treatment system (101) without major modifications. 



  As shown by the dashed lines, the stretching device (5, 104) can also be a retrofittable component with its own housing part.  This can be retrofitted to an existing conventional fleece layer (3, 102), with its control (131) also being adapted, exchanged or coupled with the control (7) of the profile forming device (1).  This fleece layer (3, 102) preferably has an integrated pile storage. 



  The stretching device (5) and its conveyor section (120) is divided into three conveyor sections (121, 122, 123), as in FIGS. 8 to 10, which each consist of conveyor belt sections that circulate in space.  The conveyor belt sections (121, 122) are designed in a triangular manner, as in the exemplary embodiment described above, in the form of a triangle over deflecting rollers (130), the triangular shape in the variant from FIGS. 11 to 13 being elongated and elongated.  The conveyor belt sections (121, 122) together form a line that rises obliquely in the pile running direction (23). 



  The pile producer or  8 to 10, the conveyor belt section (123) facing the pile feeder (10) is angled and designed as a swivel table (26) which is adjustable in height and adjusts to the respective position of the pile feeder (10) or pile removal device (117). can be adjusted.  The swivel table (26) takes on the function of the infeed conveyor (15) in the variant of FIG. 1.     The conveyor belt section (123) is designed in the table area protruding from the housing as a feed belt (25), which can optionally be held under tension by a tensioning roller. 



  Figures 12 and 13 illustrate in an enlarged view the structure of the machine structure of the stretching device (5, 104).     In Figure 11 and 12, the nip rollers (126,127,128) are omitted for clarity.  They are shown in FIG. 13.  



  Clamping rollers (126, 127, 128) are arranged on the machine frame of the stretching device (5, 104) above the deflection rollers (130) of the conveying sections (121, 122) lying at the front in the pile running direction (23).  The third rear pinch roller (126) can optionally be dispensed with, which is shown by the broken line in FIG. 13.  Alternatively, the middle pinch roller (127) can be omitted. 



  The pinch rollers (126, 127, 128) are attached with their roller frame to vertical rows of holes in the machine frame and can thus be brought to the required height to the inclined conveyor belt sections (121, 122, 123).  The pinch rollers (126, 127, 128) are mounted on their roller frames so that they can be adjusted in height by means of carriages.  B.  a cylinder against the pile (8,107) or  its associated conveyor belt sections (121, 122, 123) are pulled vertically downwards and turned on in the required manner. 



  The clamping point (106) facing the pile generator (2, 103) is formed by the first angled conveyor belt section (123) on the inlet side and its clamping roller (128).  Both run essentially at the pile delivery speed.     The second nip (105) is created in Figure 13 by the adjacent central conveyor section (122) and its nip roller (127).  Both move to profile the pile (8,107) or  Fleece (9,107) in the manner described faster or slower than the pile delivery speed.  If three or more conveyor belt sections (121, 122, 123) and clamping rollers (126, 127, 128) are used, one or more additional clamping points (105 ') can alternatively be formed as in FIG.  



     FIGS. 14 to 15 illustrate a variant of the compensating device (6) already indicated at the beginning in FIG. 3.  In this case, the discharge belt (17, 116) is connected directly to the fleece feed (22) of the needle machine (4) or another solidification device.  The storage tape (18) with the variable sag of the upper run (19) from FIG. 3 is thereby eliminated.  In the nonwoven feeder (22) of Figure 14, the upper run is always taut and z.  B.  supported by a table or the like on at least a substantial part of its length. 



  In this variant of FIGS. 14 and 15, the control (7, 311) of the fleece layer (3, 102) or  the profile forming device (1) a constant conductivity to the controller (28) of the needle machine (4), which then drives the endless conveyor belt of the fleece feeder (22) with a corresponding constant fleece running direction (24) via the drive (M8).  The control value (7.131) is calculated as the mean value from the various variable speeds of the pile leading drives M of the fleece layer (3.102). 



  The deflection rollers (29, 30) of the discharge belt (17, 116) and the fleece feeder (22) are spaced apart to the side and form a gusset (31).  In this gusset (31), depending on the speed differences, a sag (32) of the fleece (9, 108) can be variably accommodated. 



  The take-off belt (17, 116) runs slower and faster at alternating speeds in accordance with the profile formation of the fleece (9, 108).  It can also stop temporarily, for example, what happens when you adapt to the laying carriage movement. 



  If the laying carriage (16,111) stops at the ends of its path and changes direction, the take-off belt (17,116) stops accordingly.  It can also run completely synchronously with the laying carriage (16, 111) and take part in its acceleration and braking phases. 



  If the haul-off belt (17, 116) temporarily runs faster than the conveyor belt of the fleece feeder (22) moving with the speed average, the fleece (9, 108) is temporarily jammed and forms the sag (32) shown in dashed lines in FIG. 15 in the gusset (31 ).  When the speed of the discharge belt (17, 116) then drops again and falls below the mean value, the fleece feed (22) is faster and pulls the slack (32) flat again. 



  Modifications of the shown embodiments are possible in different ways.  The drafting or stretching device (5, 104), the compensating device (6) can be designed differently.  The drafting device (5, 104) can, for example, work with other stretching or accumulating devices instead of the roller arrangements (11, 12, 13) or the conveyor belt sections (120, 121, 122, 123).  Likewise, the fleece (9, 108) can also be buffered and constantly dispensed in the compensation device (6) in a different way while compensating for the dispensing fluctuations.  Under certain circumstances, the compensating device (6) can be completely dispensed with if, for example, the bonding device (4) is designed accordingly and can work with fluctuating fleece feed speeds. 

   Furthermore, between the different components of the fiber treatment plant (1) other units, for.     B. 



  Fleece plug-in units can be installed.  For example, the fleece (9, 108) can also be delivered from the fleece layer (3, 102) to a roller store or the like instead of the consolidation device (4).  



  In a further embodiment, not shown, measuring devices can be arranged in front of and / or behind the nonwoven layer (3, 102) and optionally also behind the consolidation device (4), which measure and record the profile of the pile (8, 107) and / or the nonwoven (9, 108).  Using the control (7,131) or another suitable control, these measured values can be compared with stored default values and used to regulate the profile formation. 



  In further modifications, the number of conveyor sections (121, 122, 123) can vary and be smaller or larger than in the embodiment shown.  Furthermore, the design of the conveyor section (120) and the conveyor sections (121, 122, 123) is variable. 



  Any other means of transport is possible instead of rotating conveyor belts.  Alternatively, it can also be sliding and low-friction as well as stationary guiding surfaces, on which the pile (8, 107) slides.  Furthermore, the clamping points (105, 106) can also be formed in a different way than by adjustable and driven clamping rollers (126, 127, 128).  In addition, the design variants shown in the various embodiments can also be interchanged and changed.  



   REFERENCE SIGN LIST 1 profile forming device 2 pile generator, card, carding machine 3 fleece layer 4 consolidation device, needling machine 5 stretching device 6 compensation device 7 control 8 pile 9 fleece 10 pile feed 11 first pair of rollers 12 second pair of rollers 13 last pair of rollers 14 guide roller 15 infeed belt 16 laying carriage 17 discharge belt 18 storage belt 19 upper belt 19 Roll 21 front roll 22 fleece feed 23 pile direction 24 fleece direction 25 feed belt 26 swivel table 27 feed device 28 control needle machine 29 deflection roller take-off belt 30 deflection roll fleece feed 31 gusset 32 sag 33 inlet area 101 fleece manufacturing device 102 fleece layer 103 pile generator 104 drafting device,

   Stretching device 105 clamping point 106 clamping point 107 pile 108 multi-layer fleece 109 feed belt 110 uppercarriage 111 laying carriage 112 auxiliary carriage 113 belt inlet 114 conveyor belt 115 conveyor belt 116 take-off belt 117 pile removal device 118 take-off roller 119 chipper 120 conveyor track, conveyor belt 121 conveyor section, conveyor belt section 122 conveyor section, conveyor belt section 123 conveyor section, conveyor belt section 124 clamping roller on the feed belt 125 clamping roller on the conveyor belt 126 clamping roller on the conveyor belt section 127 clamping roller on the conveyor belt section 128 clamping roller on the conveyor belt section 129 clamping roller on the customer 130 deflection roller conveyor belt 131 control M drives of various fleece laying components M1 drive guide roller M2 drive pile feed M3 drive third pair of rollers,

   third conveyor section M4 drive second pair of rollers, second conveyor section M5 drive first pair of rollers, first conveyor section M6 rear drive storage belt M7 front drive storage belt M8 drive fleece feed x warp length, stretching length y warping length, stretching length

Claims

 1.) Method for profiling a multi-layer fleece (9, 108), which is laid by means of a fleece layer (3, 102) from at least one pile (8, 107) fed by a pile generator (2, 103), the Profiling is carried out by stretching and / or compressing the supplied pile (8, 107), characterized in that the pile (8, 107) is provided with a profile-forming device (1) at at least two defined clamping points spaced apart in the area between the fleece layer (3, 102) and pile generator (2, 103). 105, 105 ', 106) is stretched and / or compressed.
2.) Method according to claim 1, characterized in that the clamping points (105, 105 ', 106) form between them at least one defined warping length x, y for the pile (8, 107), the pile (8, 107) at the clamping points (105, 105 ', 106) with different Speeds is promoted.
3.) Method according to claim 1 or 2, characterized in that the local position of the clamping points (105, 105 ', 106) is changed to produce different lengths of delay x, y.
4.) Method according to claim 1, 2 or 3, characterized in that the fleece (9, 108) released by the fleece layer (2, 103) at varying speeds in one Compensating device (6) buffered and then at a substantially constant speed Solidification device (4) is supplied.
5.) Profile forming device (1) for a multi-layer Fleece (9, 108), which is laid by means of a fleece layer (3, 102) from at least one pile (8, 107) fed by a pile generator (2, 103), so that the Profile-forming device (1) a drafting or stretching device (5,104) to be arranged in the area between the pile generator (2,103) and the fleece layer (3,102) with at least two clamping points (105, 105 ', 106) for the pile (8,107) and with a controller (7) to which the fleece layer (3, 102) can also be connected.
6.) Profile-forming device according to claim 5, characterized in that the delay or Stretching device (5, 104) is integrated in the fleece layer (3, 102) at the inlet area (33) thereof.
7.) Profile formation device according to claim 5 or 6, characterized g e k e n n z e i c h n e t that the Profile forming device (1) one behind the Fleece layer (3,102) to be arranged Compensation device (6) for the fleece (9, 108).
8.) Profile-forming device according to claim 5, 6 or 7, characterized in that the Drafting or stretching device (5,104) and the Fleece layers (3,102) for profile formation of the fleece (9,108) are controlled via the pile path.
9.) Profile forming device according to one of claims 5 to 8, characterized g e k e n n z e i c h n e t that the Form clamping points (105, 105 ', 106) between them at least one defined warping length x, y for the pile (8, 107), the pile (8, 107) on the Terminal points (105, 105 ', 106) with different Speeds is eligible.
10.) Profile-forming device according to one of claims 5 to 9, characterized in that location-adjustable clamping points (105, 105 ', 106) for Generation of different lengths of delay x, y are provided.
11.) Profile-forming device according to one of claims 5 to 9, characterized in that one or more driven clamping roller arrangements (11, 12, 13) or clamping conveyor belt sections (120, 121, 122, 123) with clamping rollers (124, 125, 126, 127, 128) are arranged at the clamping points (105, 105 ', 106) are.
12.) Profile-forming device according to one of claims 5 to 11, characterized in that the clamping rollers (124, 125, 126, 127, 128, 129) are supported in a controlled manner (27).
13.) Profile-forming device according to one of claims 5 to 12, characterized in that the stretching device (5, 104) has a plurality of The web running direction (23) has clamping roller arrangements (11, 12, 13) or clamping conveyor belt sections (121, 122, 123) arranged one behind the other with controllable drives M5, M4 and M3.
14.) Profile-forming device according to one of claims 5 to 13, characterized in that the roller arrangements (11, 12, 13) or Conveyor belt sections (121, 122, 123) with their Drives M5, M4 and M3 for stretching the pile (8,107) upwards in the pile running direction (23) Speeds are set.
15.) Profile-forming device according to one of claims 5 to 14, characterized in that the pile-leading drives M of the fleece layer (3, 102) via the control (7, 131) to the drive M3 of the last clamping roller arrangement (13) or the last clamping conveyor belt section (112) are coupled to the output-side clamping point (105) and their speeds can be changed together.
16.) Profile-forming device according to one of claims 5 to 15, characterized in that the input-side clamping point (106) corresponds to the The pile generator (2, 103) is assigned, the pile (8, 107) being able to be conveyed essentially at the delivery counter speed of the pile generator (2,103).
17.) Profile-forming device according to one of claims 5 to 16, characterized in that the clamping point (106) is connected to a Pile removal device (117) of the pile generator (2, 103) and / or at the end region of the roller arrangements (11) or on the pile generator side Conveyor belt section (s) (120,123) is arranged.
18.) Profile-forming device according to one of claims 5 to 17, characterized in that the clamping point (106) is arranged in the inlet area (33) on an adjustable swivel table (26) with an angled conveyor belt section (123).
19.) Profile forming device according to one of claims 5 to 18, characterized in that one or more additional clamping points (105 ') with clamping roller arrangements (12) or clamping between the terminal clamping points (105, 106) Conveyor belt sections (122) are arranged.
20.) Profile forming device according to one of claims 5 to 19, characterized in that the compensation device (6) has an endless shape Storage tape (18) with variable sag of the Upper run (19) and two separately adjustable Has drives M6 and M7.
21.) Profile-forming device according to one of claims 5 to 20, characterized in that the rear drive M6 is connected to the variable Fleece delivery speed of the fleece layer (3, 102) is coupled.
22.) Profile-forming device according to one of claims 5 to 21, characterized in that the front drive M7 is at an average value of the oscillating speed of the front drive M6 is set.
23.) Profile-forming device according to one of claims 5 to 22, characterized in that the rear drive M7 is coupled to the fleece feed (22) of the strengthening device (4).
24.) Profile forming device according to one of claims 5 to 19, characterized in that the compensation device (6) has a gusset (31) for Inclusion of a fleece slack (32) between distanced deflection rollers (29,30) of the discharge belt (17,116) and a fleece feed (22) on the Consolidation device (4), of which Control (7, 311), a speed guide value averaged over the profiling for the drive M8 of the fleece feed (22) can be output.
EP20020778850 2001-04-23 2002-04-23 Method for profiling a nonwoven fabric and profile forming device Active EP1381721B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE20107004U DE20107004U1 (en) 2001-04-23 2001-04-23 Profile educational institution
DE20107004U 2001-04-23
DE20117627U DE20117627U1 (en) 2001-10-31 2001-10-31 To structure the profile of a multi-layer nonwoven, the carded web is stretched/compressed by defined clamping points before transfer to the web laying unit to set the thickness and/or density
DE20117627U 2001-10-31
PCT/EP2002/004431 WO2002101130A1 (en) 2001-04-23 2002-04-23 Method for profiling a nonwoven fabric and profile forming device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP05022670A EP1647617B1 (en) 2001-04-23 2002-04-23 Method for profiling a nonwoven fabric and profile forming device
EP05022667A EP1643022B1 (en) 2001-04-23 2002-04-23 Method for profiling a nonwoven fabric and profile forming device

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP05022667A Division EP1643022B1 (en) 2001-04-23 2002-04-23 Method for profiling a nonwoven fabric and profile forming device
EP05022670A Division EP1647617B1 (en) 2001-04-23 2002-04-23 Method for profiling a nonwoven fabric and profile forming device

Publications (2)

Publication Number Publication Date
EP1381721A1 true EP1381721A1 (en) 2004-01-21
EP1381721B1 EP1381721B1 (en) 2006-06-07

Family

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Family Applications (3)

Application Number Title Priority Date Filing Date
EP20020778850 Active EP1381721B1 (en) 2001-04-23 2002-04-23 Method for profiling a nonwoven fabric and profile forming device
EP05022667A Revoked EP1643022B1 (en) 2001-04-23 2002-04-23 Method for profiling a nonwoven fabric and profile forming device
EP05022670A Active EP1647617B1 (en) 2001-04-23 2002-04-23 Method for profiling a nonwoven fabric and profile forming device

Family Applications After (2)

Application Number Title Priority Date Filing Date
EP05022667A Revoked EP1643022B1 (en) 2001-04-23 2002-04-23 Method for profiling a nonwoven fabric and profile forming device
EP05022670A Active EP1647617B1 (en) 2001-04-23 2002-04-23 Method for profiling a nonwoven fabric and profile forming device

Country Status (4)

Country Link
EP (3) EP1381721B1 (en)
DE (3) DE50207108D1 (en)
ES (2) ES2265058T3 (en)
WO (1) WO2002101130A1 (en)

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WO2010073221A2 (en) 2008-12-23 2010-07-01 Texnology S.R.L. Device for treatment of a card web
US8464400B2 (en) 2011-06-20 2013-06-18 Oskar Dilo Maschinenfabrik Kg Method for operating a fleece layer

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DE102004042119A1 (en) 2004-08-30 2006-03-02 Trützschler GmbH & Co KG Apparatus for producing a fibrous web, e.g. made of cotton, chemical fibers or the like.
FR2910496B1 (en) 2006-12-22 2009-03-13 Asselin Thibeau Soc Par Action Method of adjusting the local characteristics of a non-woven, and production plant therefor.
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EP2175056B1 (en) * 2008-10-07 2012-02-01 Oskar Dilo Maschinenfabrik KG Device and method for transferring a non-woven web
DE102011120715A1 (en) 2011-12-12 2013-06-13 Hubert Hergeth Profiling or leveling a non-woven fiber fleece using a fleece forming system, comprises transporting the non-woven fiber fleece to a milling device and detaching the fiber fleece from the milling device
CN104755666B (en) * 2012-09-06 2017-11-21 恒天(奥地利)控股有限公司 Compensation device for the transporting velocity of the fluctuation of web
DE102013101398B4 (en) 2013-02-13 2015-10-29 Trützschler GmbH & Co Kommanditgesellschaft Apparatus and method for influencing the basis weight profile of a batt
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WO2010073221A2 (en) 2008-12-23 2010-07-01 Texnology S.R.L. Device for treatment of a card web
US8464400B2 (en) 2011-06-20 2013-06-18 Oskar Dilo Maschinenfabrik Kg Method for operating a fleece layer

Also Published As

Publication number Publication date
EP1647617B1 (en) 2008-03-12
WO2002101130A1 (en) 2002-12-19
EP1381721B1 (en) 2006-06-07
EP1643022B1 (en) 2010-09-01
EP1647617A1 (en) 2006-04-19
DE50211901D1 (en) 2008-04-24
EP1643022A1 (en) 2006-04-05
ES2302111T3 (en) 2008-07-01
DE50207108D1 (en) 2006-07-20
DE50214639D1 (en) 2010-10-14
ES2265058T3 (en) 2007-02-01

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