EP1643022B1 - Procédé pour profiler un non-tissé et dispositif de formation de profils - Google Patents

Procédé pour profiler un non-tissé et dispositif de formation de profils Download PDF

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Publication number
EP1643022B1
EP1643022B1 EP05022667A EP05022667A EP1643022B1 EP 1643022 B1 EP1643022 B1 EP 1643022B1 EP 05022667 A EP05022667 A EP 05022667A EP 05022667 A EP05022667 A EP 05022667A EP 1643022 B1 EP1643022 B1 EP 1643022B1
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EP
European Patent Office
Prior art keywords
nonwoven
web
profile
pile
forming device
Prior art date
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Revoked
Application number
EP05022667A
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German (de)
English (en)
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EP1643022A1 (fr
Inventor
Schäffler Manfred
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Autefa Solutions Germany GmbH
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Autefa Automation GmbH
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Priority claimed from DE20107004U external-priority patent/DE20107004U1/de
Priority claimed from DE20117627U external-priority patent/DE20117627U1/de
Application filed by Autefa Automation GmbH filed Critical Autefa Automation GmbH
Publication of EP1643022A1 publication Critical patent/EP1643022A1/fr
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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H18/00—Needling machines
    • D04H18/02—Needling machines with needles
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G25/00—Lap-forming devices not integral with machines specified above
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • 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)
    • 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
    • D04H13/00—Other non-woven fabrics

Definitions

  • the invention relates to a method for profiling a multilayer web and a profile forming device for such a nonwoven with the features in the preamble of the method and device main claim.
  • the profile-forming technique and the profile-forming device with the stripper to be pre-connected to the leveler has the advantage that the pile thickness influencing already takes place before the pile storage at the discharge conveyor of the web layer in a defined area and with improved effecting and particularly controllable influencing possibilities.
  • the card can thus 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 directly or indirectly The stretching device supplied pile is influenced only in the stretching device and thereby preferably stretched.
  • This stretching and the concomitant thinning of the pile are precisely controllable and affect the pile in a gentle manner.
  • 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 possibilities for the thickness or density of the nonwoven leaving the nonwoven layer.
  • the profile-forming device furthermore has a compensating device for the nonwoven to be followed by the nonwoven layer, which ensures a constant delivery speed of the nonwoven to a solidifying device to be followed, preferably a needle machine. As a result, the fluctuating with the speed level of the nonwoven layer during profile formation speeds of the discharge belt are compensated.
  • the equalizer can be integrated with new fleece layers or retrofitted to existing fleece layers. It also requires only a small construction cost and space requirements. It can be easily and precisely controlled. It is also inexpensive and economical.
  • 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 supplied pile is influenced in the desired manner for distortion formation and in particular is stretched. Deformation can be better and more accurately controlled by the defined delay length.
  • the Florveryak can be controlled more precisely by location and size in the pile. This also allows the different Consider requirements of different types of pile and pile thickness.
  • the size of the delay length and, in particular, the stretch length can also be influenced and changed.
  • Elastic piles which also generally have a larger pile thickness, are preferably treated with a short draft length or stretch length.
  • a plastic deformation of the pile is achieved, which is not canceled after leaving the nips and the Verzug Rhein, but remains at the desired location and with the desired thickness in the pile.
  • For stiffer and / or thinner fleece can be worked with larger draft or stretch lengths. As the sensitivity of the pile increases, so does the warp or stretch length used for distortion formation.
  • Preferably driven pinch rollers are used at the nip points to achieve the desired clamping effects and speed differences, which can be adjusted to the desired degree to the pile and to a likewise driven counter-roller or a conveyor belt or the like.
  • the clamping points can be created in different ways and at different locations, depending on the structural design of the fleece layer, the pile section or the pile fabric.
  • the stretching device consists of a plurality of roller arrangements, in particular drafting roller pairs, or a plurality of conveyor belt sections with deliverable pinch rollers, which clamp the pile between them and thereby elongate with increasing speed increases. Accordingly, the speed level of the downstream nonwoven layerer also changes, so that the influence of the pile takes place primarily in the stretching device and the nonwoven layer takes over the pile by the speed adjustment substantially without any further change of pile from the stretching device.
  • the stretching device is advantageously controlled via the Florweg and depending on the Legewagen ein.
  • the Florweg is always the same with a suitable design of the fleece between the inlet point and the exit point on the laying carriage, because the path changes of the laying carriage are compensated by appropriate path changes of the superstructure and the infeed conveyor or the belt loop between upper and laying carriages. This results in a particularly simple and accurate control option.
  • 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 mounted on new fleece layers and even integrated instead of the previous feeder line.
  • the stretching device can also be retrofitted to existing fleece layers without problems and without increased space requirements.
  • the existing card or card can also be used here.
  • an assignment to pile producers or the integration into an overall system can be given. It is not a remodeling of complete nonwoven plant as with the EP-A-0 371 948 or WO 99/24650 required.
  • the stretching device also requires only a small space and construction costs. It represents a particularly cost-effective and economic as well as highly efficient option for targeted nonwoven profile formation.
  • the claimed profile-forming device has the advantage that it can be used without problems in existing fiber treatment plants together with a new fleece layer or an existing fleece layer. Neither the card, nor the needle machine must be adapted 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 in this respect and, to that extent, can also be designed as a cost-effective standard machine.
  • a fiber treatment plant or nonwoven production device (101) which consists of a pile producer (2,103), eg a carding machine or carding machine, a downstream nonwoven layering machine (3,102) and a subsequent downstream solidification device (4), eg a needle machine.
  • the nonwoven layer (3, 102) is assigned a profile-forming device (1), which consists of at least one drafting or stretching device (5, 104) and optionally also a compensating device (6).
  • the invention relates to the profiling method and the profiling device (1). In addition, however, it also detects the fleece layer (3,102) equipped with a profile-forming device (1) and the entire fiber-treatment plant or fleece-producing device (101).
  • one or more single-web thin webs (8, 107) are formed from a loose fibrous material, which are fed to the web laying machine (3, 102) in the direction of web flow (23).
  • the nonwoven layer (3,102) places the individual pile (8,107) or the plurality of pile (not shown) on its transverse discharge belt (17,116) into a multi-layer nonwoven fabric (9,108).
  • the fleece (9, 108) then passes in the fleece running direction (24) into the subsequent solidifying device (4), where it is solidified in a suitable manner by needling or by sprayed-on chemicals, by thermal influence or the like.
  • the solidification device (4) may be of any suitable type. Preferably, it is a needle machine shown in the drawings.
  • the nonwoven layer (102) may be formed in any suitable manner.
  • the two endless and revolving driven conveyor belts (114,115) which are guided over two main cars, namely a superstructure (110) and a lower laying carriage (16,111) and thereby in the area between the two main cars (110 , 16,111) receive and guide the fed pile (8, 107) between them.
  • it is a corotating web laying (3,102), in which the two main cars (110,16,111) always move in the same direction.
  • the fleece-laying machine (3, 102) may also have one or more auxiliary carriages (112) which keep the conveyor belts (114, 115) stretched.
  • the pile (8, 107) supplied by the pile fabricator (2, 103) via the profiling device (1) and its drafting or stretching device (5, 104) is deposited by the reciprocating laying carriage (16, 111) on a take-off belt (17.116) extending transversely to the laying carriage movement and mecanictäfelt, wherein from the single-ply pile (8,107) a multilayer web (9,108) on the take-off belt (17,116) is formed.
  • the pile (8, 107) is received in the fleece layer (3, 102) on an integrated feed belt (109) or upstream infeed belt (15) in the direction of pile travel (23) and fed, for example, in the open position to a belt inlet (113) on the upper carriage (110) ,
  • the feed belt (109) in the illustrated and preferred embodiment is a portion of the one conveyor belt (114).
  • the second conveyor belt (115) is added, wherein between the conveyor belts (114,115) an inlet funnel is formed on the superstructure (110).
  • the nonwoven layer (3,102) corresponds to that of WO 97/19209 known embodiment.
  • he can also according to the EP-A-0 517 568 or the WO 91/156018 be educated.
  • it may also be a so-called Wagenleger, in which the conveyor belts are not performed together on both main cars.
  • the fleece layer (3,102) has florirrigate drives, which are connected to a common control (7,131).
  • These fostering drives that are in FIG. 1 shown with motors M and in FIG. 6 are indicated for clarity only by arrows, for example, consist of one or more drives for the movements of the upper carriage (110), the laying carriage (16, 111) and possibly existing auxiliary carriage (112).
  • the flour driving drives also include one or more drives that set the conveyor belts (114,115) in circulation and drive.
  • the drive of the take-off belt (17,116) is one of the thriving drives.
  • the pile generator (2,103) may also be of any type and design. It may, for example, be a card or card.
  • the pile generator (2, 103) has a likewise arbitrarily formed pile removal device (117), with which the pile is removed from a tambour or the like and to the nonwoven layer (102) is passed over the preferably interposed Florzu Adjust (10) or conveyor line (120).
  • the profiling device (1) For profiling the nonwoven fabric (9, 108) formed in the fleece layer (3, 102), the profiling device (1) is provided. It includes a drafting or stretching device (5 104) for the pile (8, 107), which is arranged between the nonwoven layer (3, 102) and the pile fabricator (2, 103).
  • the profile-forming device (1) can also have a compensating device (6) for the fleece (9), which is arranged between the non-woven layer (3,102) and the solidification device (4).
  • the stretching device (5, 104) serves to change the thickness or density of the web (8, 107) which is fed by the pile producer (2, 103), preferably with constant thickness and constant speed, via a web feed (10).
  • the stretching device (5, 104) preferably thins the pile (8, 107). With appropriate design, it can possibly also compress and compact or thicken it.
  • the profiling device (1) has a controller (7), to which also the nonwoven layer (3,102) is connected.
  • the stretching device (5, 104) and the nonwoven applicator (3, 102) are hereby jointly controlled, wherein the profiling of the nonwoven (9) explained in more detail below is preferably controlled via the pile path.
  • the controller (7) may be incorporated into the controller (131) of the web laying machine (3, 102) or the controller of the nonwoven web, e.g. be integrated as a software module. However, it can also be arranged separately and connected only to the existing controller (131) of the nonwoven layer (3,102).
  • the stretching device (5) has in the variant of Figure 1 to 3 a conveyor line with a plurality of roller arrangements (11, 12, 13) arranged in succession in the direction of the pile guide (23) and having controllable drives M5, M4 and M3. In the embodiment shown, there are three roller assemblies. But it can also be more or less, as for example in below FIG. 6 and 7 shown ..
  • the roller arrangements (11, 12, 13) form three clamping points and serve to dilute and stretch the pile (8). They each consist of opposing pairs of rollers that pinch the pile (8) between them and promote with adjustable speed.
  • the drives M5, M4 and M3 preferably drive in each case both rollers of the roller pairings (11, 12, 13). Alternatively, however, they may only be one roller at a time, e.g. drive the lower roller of the roller pairings (11,12,13), wherein the associated upper rollers are each designed as freely rotatable, revolving pinch rollers.
  • the rollers may be formed as smooth-walled rollers. But you can also have a roughened or equipped with stretch needles surface.
  • one or more guide rollers (14) can be arranged with their own drives M1, M2, which likewise act on the pile (14).
  • the input-side guide roller (14) is arranged above the pile feed (10) and in particular above the rear clamping roller of the Pile feeder (10).
  • This guide roller (14) and its drive M2 are coupled to the speed of the pile feed (10) and the delivery speed of the pile generator (2).
  • the pile (8) is clamped and conveyed between this guide roll (14) and the pile feed (10).
  • the output-side guide roller (14) is assigned with its drive M1 to the infeed conveyor (15) of the nonwoven loader (3) and is preferably located above the front deflection roller of this infeed conveyor (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 pin (8) clamped between them.
  • the stretching device (5) can be switched back and forth between a normal pass stage and one or more draw stages.
  • the pass-through stage there is no stretching of the pile (8), so that the pile (8) retains its thickness and density determined by the pile producer (2).
  • the roller arrangements (11, 12, 13), the guide rollers (14) and also the infeed conveyor (15) of the web laying machine (3) have a preferably constant speed level adapted to the web feed speed of the pile generator (2).
  • the rolls, belts and other conveyors for the pile (8) arranged one behind the other in the direction of pile travel (23) can have a gradually increasing speed level in order to keep the pile (8) under constant tension without significantly stretching it
  • the other drives M of the nonwoven applicator (3) are then set to normal laying function via the control (7), so that a multi-layered nonwoven fabric (9) also follows through the continuous pile (8) on the discharge belt (17) constant thickness or density is formed.
  • the pile (8) in the stretching device (5) is thinned and stretched.
  • the drives M5, M4 and M3 of the roller arrangements (11, 12, 13) are set to stepwise increasing speeds in the direction of the web direction (23). This has the consequence that the pile (8) at the pile feed (10) and the local guide roller (14), starting from the one to the next roller assembly (11,12,13) transported faster and thereby put under train and thus stretched. Due to the clamping connection between the pairs of rollers, it is safely conveyed and held.
  • the nonwoven applicator (3) is coupled in particular with its infeed conveyor (15) and on the other thrusting drives M via the control (7) to the drive M3 of the last roller arrangement (13). This is also the output side guide roller (14) coupled to its drive M1.
  • the infeed belt (15) and the guide roller (14) thus run just as fast or only slightly faster in the interest of a constant light tensile load than the last roller arrangement (13) of the stretching device (5).
  • dilutions in the web (8) are formed in the one or more draw stages partially, which are stored by the laying carriage (16) at predetermined positions of the laying width on the discharge belt (17).
  • the tuning and the forward travel determined via the route control are determined via the controller (7) and the profiling program stored and aborted there.
  • FIG. 4 illustrates these processes in a diagram in which the velocities of the individual drives, ie the peripheral speeds of the respective funding and the flange thickness d are plotted along the path s.
  • the speeds V of the roller drives M1, M3, M4, M5 and the flour driving drives M of the batt (3) are increased, wherein a predetermined acceleration ramp is traversed.
  • the individual roller speeds are increased gradually.
  • 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 Florzu Adjust (10) remain constant. Due to these speed changes, the pile (8) is stretched and thinned, which is reflected in the reduction in the thickness d shown in the diagram.
  • the drafting stage remains constant for a distance s predetermined by the profile-forming program and is then withdrawn, the increased roller speeds being taken back to the level of the pass-through stage. Accordingly, the board thickness d rises again to the original level.
  • the speed and pile thickness changes shown may be varied in steps or continuously up or down to produce different sized changes in board thickness d.
  • the stretching stages may also be present over a longer or shorter distance s.
  • the nonwoven layer (3) deposits the pile thickness changes at the predetermined positions of the width of the sheet to form the multi-layer nonwoven fabric (9).
  • an equal or a different laying behavior can be driven.
  • the pile thicknesses are reduced, which is preferably done at each on the discharge belt (17) deposited pile position in the forward and reverse of the laying carriage (16) on both fleece edges.
  • the multilayer nonwoven (9) is given a convex profile in which the nonwoven thickness in the middle is greater than at the edges.
  • profile changes can also be made in the intermediate fleece area.
  • the formation of a fleece profile can serve different purposes. On the one hand, it is thus possible to react to peculiarities of the solidification device (4), in particular a needle machine. Needle machines usually have the peculiarity that due to the necessary delay the fleece (9) jumps in across the width and this width shrinkage leads to thickening in the edge region, whereby the end product emerging from the needle machine (4) has an uneven thickness or density over the laying width Has. This is specifically counteracted by the formation of the aforementioned nonwoven profile. In addition to these edge effects, other inhomogeneities of the needling machine (4) or another hardening device generated within the laying width can be taken into account. Alternatively, by the profile formation technique, the non-woven end product coming from the solidification device (4) instead of a uniform thickness, a deliberately different thicknesses are given in places, if this final product should already have a certain own cross-sectional profile for further processing.
  • the compensating device (6) consists in the embodiment shown of an endless storage belt (18) -k with a variable slack of the upper strand (19) and two separately adjustable drives M6 and M7 for one roller (20,21) at the rear and front end of Storage tape (18).
  • fluctuations in the delivery speed of the discharge belt (17) are compensated, which are due to the above-described extension of the pile (8).
  • the fleece (9) of the downstream in the running direction (24) hardening device (4) and the nonwoven feed (22) with at least substantially constant speed and flow rate is supplied.
  • the compensation of the output fluctuations of the fleece layer (3) is caused by a variable sag of the upper run (19).
  • FIG. 5 shows a speed diagram.
  • the drive M6 of the rear roller (20) is coupled to the delivery speed of the discharge belt (17) and oscillates with its speed with this up and down.
  • the drive M7 of the front roller (21) is set in contrast to a preferably constant speed, which corresponds to the mean value of the speed fluctuations of the drive M6.
  • the drive M6 also runs faster than the drive M7. This creates the in FIG. 3 shown maximum slack of the upper run (19).
  • the nonwoven (9) delivered by the discharge belt (17) is stored in the upper run loop.
  • the speed of the drive M6 also decreases until it reaches its mean value and is equal to the speed of the drive M7.
  • the slack of the upper run (19) decreases in FIG. 3 shown middle position, wherein the fleece (9) is conveyed through without storage.
  • the profile forming device (1) In the described setting of the profile forming device (1), elongations and dilutions are formed in the pile (8) and accordingly also in the deposited multi-layer nonwoven fabric (9). As a result, most of the practical applications of profiling can be covered.
  • the maximum fleece thickness is determined by the normal and uninfluenced pile thickness.
  • 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) of Figure 1 to 3 .
  • the nonwoven production device (101) can also have a conveying path (120) between the nonwoven layer (102) and the pile producer (103).
  • this conveyor line (120) can also be integrated into the pile feed of the web laying machine (102).
  • the distortion device (104) is arranged between the fleece layer (102) and pile fabric (103) and has in the same way as the previously described stretching device (5) of Figure 1 to 3 two or more in this area arranged clamping points (105,105 ', 106) for the Florerzeuger (103) supplied pile (107).
  • the clamping points (105, 105 ', 106) form therebetween a defined draft length x, y for the pile (107), the pile (107) being conveyed at the clamping points (105, 105', 106) at different speeds.
  • the Verzug Rhein (104) is designed as a stretching device, wherein the pile (107) on the nonwoven (102) facing nip (105) is conveyed at a faster rate than at the pile generator (103) facing the clamping point (106).
  • the nips (105,105 ', 106) are formed by pinch rollers (124, 125, 126, 127, 128, 129) which are deliverable and have their own controllable drive.
  • the drives of the pinch rollers (124, 125, 126, 127, 128), which are arranged in the region of the fleece layer (102), are connected to its common control (131).
  • the nonwoven-side clamping rollers (124,125,126,127,128) are coupled to the speed level of florstoryden drives and can be changed uniformly in height with this speed level.
  • the pinch rolls (129) or take-off roll (118) are driven substantially at the conveying speed of the pile fabricator (103) and the pile taker (117), respectively. This speed is usually constant but may vary as well.
  • the conveyor line (120) is in the embodiment of FIG. 6 and 7 formed as a revolving single conveyor belt, which extends between the Florab fortune issued (117) and the feed belt (109).
  • the conveyor belt (120) is guided over end deflection rollers (130) and is driven.
  • the drive speed can be constant or vary. It may, for example, correspond to the delivery speed of the pile picking device (117).
  • FIG. 6 there is a nip (105) on the nonwoven layer (102) and on the feed belt (109).
  • the associated pinch roller (124) is arranged opposite to the deflection point of the feed belt (109) and the local deflection roller.
  • the pinch roller (124) is driven at the same peripheral conveying speed as the feed belt (109) and the conveyor belt (114), respectively.
  • the pile (107) is here clamped between the pinch roller (124) and the conveyor belt (109) and conveyed on both sides at the same speed.
  • the motor or drive of the pinch roller (124) is in this case connected to the controller (131).
  • the pinch roller (124) also has a feed device with which it can be moved transversely to the feed belt (109) or to the adjacent deflection roller in order to adjust the required size of the clamping gap for the nap (107) can.
  • the other nip (106) is located at the rear and the Florerzeuger (103) facing the end of the conveyor belt (120). It is formed by a likewise driven and deliverable pinch 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 of FIG. 6 the conveyor belt (120) and the deflection roller (129) move with the delivery speed of the pile generator (103) or run slightly faster if necessary to produce a light permanent train.
  • the flourin drives of the webbing (102) and the pinch roller (124) on the conveyor 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 ) stay constant.
  • the web (107) located on the conveying path (120) is stretched and diluted accordingly.
  • the clamping points (105,106) in which the pile is clamped, a defined delay length x is formed, wherein the pile (107) on leaving the Verberg coupled (104) on the way to the tape inlet (113) the introduced draft or the stretch reserves.
  • the time and duration of the pile distortion or stretching depend on the desired shape of the multilayer nonwoven fabric (108). They are generated with such a long lead time that they are stored at the desired location on the discharge belt from the carriage (111). The distance from the nip (105) to the exit point on the laying carriage (111) is constant in this case.
  • FIG. 7 shows a variant of the default of FIG. 6 ,
  • the above-described pinch roller (124) may also be present on the feed belt (109).
  • the rear clamping point (106) is located on the Florab spirite Rhein (117) and is characterized by the output side take-off rollers (118) are formed, which also clamp the pile (107) between them and promote with the delivery speed of the pile generator (103).
  • the conveyor belt (120) is driven at variable speed, with its speed level varying uniformly with the speed level of the thrusting drives of the web (102).
  • the pinch roll (125) and the conveyor belt (120) move faster than the delivery speed of the pile fabricator (103) in synchronism with the floppy drives of the batt (102) at the desired height for profiling and for the desired duration.
  • the stretch length x can also be formed between the pinch rollers (124, 125) and the associated deflection rollers.
  • the pinch roller (124) and the feed belt (109) move in synchronism with the driving drives of the batt (102) while the pinch roller (125) and the conveyor belt (120) are synchronized with the pile generator (103).
  • FIG. 8 shows a further variant of the delay device (5,104), which to the variant of Figure 1 to 3 is ajar.
  • the conveyor line (120) into several, here preferably three conveyor sections (121,122,123) divided.
  • Each conveyor section (121, 122, 123) is assigned at least one deliverable and driven pinch roller (126, 127, 128), these pinch rollers preferably being located at the front end and the nonwoven layer (102) facing end of the conveyor section.
  • the conveyor sections (121, 122, 123) are in this case formed by short conveyor belts circulating in a triangle over deflection rollers (130) whose drive motors M3, M4, M5 are individually controllable and are preferably also connected to the common control (131) of the nonwoven layer (102) and the profile forming device (1).
  • the clamping points (105, 106) and the stretching length x defined thereby can be changed in size and position.
  • the rear clamping point (106) is stationary and is as in FIG. 7 formed by the take-off rollers (118) of the Florabddling issued (117).
  • the front clamping point (105) is spatially variable along the conveying path (120) and is formed by the respectively delivered pinch roller (126, 127, 128).
  • the middle pinch roller (127) is delivered to its conveyor belt section (122) and forms the nip (105).
  • the other two adjacent pinch rolls (126, 128) are raised 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 105 are coupled to and are synchronously and uniformly raised and lowered at the level to produce the desired nap delay.
  • the conveyor belt section (121) closest to the direction of conveyance is raised and lowered synchronously in the speed level in the same way.
  • the third conveyor belt section (123) can likewise be connected to the speed level of the fleece layer (102) or, alternatively, to the delivery speed of the pile taker (103) or the take-off rolls (118) or, in a further modification, to a differential speed between the conveyor speeds at the nip points (FIG. 105,106) are driven.
  • FIGS. 9 and 10 show two Variants in which all clamping points (105,105 ', 106) are in the range of the conveyor line (120) and the conveyor sections (121,122,123).
  • the two terminal clamping rollers (126, 128) are delivered 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 lifted and has no flördördernden contact.
  • the in the Florzu slaughterhouse pinch roller (126) and its conveyor belt section (121) are coupled to the florestden drives of the web laying (102) and move with these synchronously in the speed level and down.
  • the rear pinch roller (128) and its conveyor belt section (123) may be coupled to and move with the output speed of the pile fabricator (103) and the pile taker (117), respectively.
  • the speed level at the nip (106) may also be set to a different value and be higher than the output speed of the pile generator (103).
  • FIG. 10 shows a further variant in which all three pinch rollers (126,127,128) at three clamping points (105,105 ', 106) are in conveying engagement with the pile (107).
  • the draft or stretch length is divided into two sections x and y, with which different extensions are generated.
  • the center pinch roller (127) and its conveyor section (122) travel faster than the rear pinch roller (128) and its Conveyor belt section (123).
  • the front pinch roller (126) and its conveyor section (121) in turn travel faster than the middle pinch roller (127) and its conveyor section (122).
  • the cascading speed levels are also determined by the common control (131) and raised and lowered in their grading uniformly with the speed of the thrusting drives of the web (102).
  • warpage and, in particular, the stretching of the warp is canceled as soon as the flow-guiding drives of the fleece layer (102) and the synchronously coupled pinch rollers again run substantially at the delivery speed of the pile generator (103). In this case, the pile (107) is continuously fed without distortion.
  • 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 compensation device (6).
  • the stretching device (5,104) is integrated to save space in the fleece layer and its housing at the inlet region (33) and takes the place of the previous inlet belt (15) of FIG. 1 one.
  • the modified nonwoven layer (3,102) has substantially the same width as a conventional machine and can therefore be subsequently integrated into an existing fiber treatment plant (101) without major modifications.
  • the stretching device (5, 104) can also be a retrofittable component with its own housing part. This can be subsequently attached to an existing conventional nonwoven layer (3,102), wherein additionally adapted to the control (131), exchanged or with the Control (7) of the profile forming device (1) is coupled.
  • This nonwoven layer (3,102) preferably has an integrated pile storage.
  • the stretching device (5) and its conveying path (120) is similar to FIGS. 8 to 10 in preferably three conveyor sections (121,122,123) divided, each consisting of spatially encircling conveyor belt sections.
  • the conveyor belt sections (121, 122) are in this case designed to run around in the same way as in the previously described embodiment in a triangle over deflecting rollers (130), the triangular shape in the variant of FIG FIGS. 11 to 13 stretched in height and elongated.
  • the conveyor belt sections (121, 122) together form a line which rises obliquely in the direction of web travel (23).
  • the pile fabric section (123) facing the pile producer or the pile infeed (10) is in a modification to FIGS. 8 to 10 formed angled and designed as a swivel table (26), which is adjustable in height and can be adapted to the respective position of the Florzu Insert (10) or Florabddling sensible (117).
  • the pivoting table (26) assumes the function of the inlet belt (15) in the variant of FIG. 1 ,
  • the conveyor belt section (123) is designed in the table area projecting out of the housing as a feed belt (25), which optionally can be held under tension by a tensioning roller.
  • FIG. 12 and 13 illustrate in an enlarged view the structure of the machine structure of the stretching device (5,104).
  • the pinch rollers (126, 127, 128) have been omitted.
  • FIG. 13 are they represented.
  • clamping rollers (126, 127, 128) are arranged in each case via the guide rollers (130) of the conveying sections (121, 122) in front of the guide in the direction of the web (23).
  • the third rear pinch roller (126) may optionally be omitted, which is indicated by the dashed line in FIG FIG. 13 is expressed.
  • the middle pinch roller (127) may be omitted.
  • the pinch rollers (126, 127, 128) are fastened with their roller frame to vertical rows of holes in the machine frame and can thereby be brought into the required height position to the inclined ascending conveyor belt sections (121, 122, 123).
  • the pinch rollers (126, 127, 128) are mounted on their roller racks in a height-adjustable manner by means of carriages and can be moved by means of a feed device (27), e.g. a cylinder against the pile (8,107) and their associated conveyor belt sections (121,122,123) are pulled in the required manner vertically down and employed.
  • the nip (106) facing the pile generator (2, 103) is formed by the inlet-side first angled conveyor belt section (123) and its pinch roller (128). Both essentially run at the Florabgabe Bulgaria.
  • the second nip (105) is in FIG. 13 from the adjacent central conveyor belt section (122) and its pinch roller (127) created. Both move to the profiling of the pile (8,107) or fleece (9,107) in the manner described above faster or slower than the Florabgabe Bulgaria.
  • three or more conveyor belt sections (121,122,123) and pinch rollers (126,127,128) may alternatively as in FIG. 10 also one or more further clamping points (105 ') are formed.
  • FIGS. 14 to 15 clarify an initial at FIG. 3 already indicated variant of the compensation device (6).
  • the discharge belt (17,116) is connected directly to the fleece supply (22) of the needle machine (4) or other solidification device.
  • the upper run is always tense and is supported, for example, by a table or the like on at least a substantial part of its length.
  • the controller (7, 311) of the nonwoven applicator (3, 102) or of the profiling device (1) transmits a constant conductance to the control (28) of the needle machine (4), which then drives the endlessly circulating conveyor belt of the nonwoven feed (22) via the drive (M8). with a corresponding constant fleece running direction (24) drives.
  • the conductance is calculated by the controller (7, 311) as an average value from the various variable speeds of the thrusting drives M of the nonwoven applicator (3, 102).
  • the deflection rollers (29,30) of the discharge belt (17,116) and the nonwoven feed (22) are a piece laterally spaced apart from each other and form a gusset (31).
  • this gusset (31) depending on the differences in speed adjusting sag (32) of the web (9, 108) can be recorded variably.
  • the discharge belt (17,116) runs according to the profile formation of the web (9,108) with alternating speeds slower and faster. It can also be temporarily stopped, which happens, for example, when adapting to the carriage movement.
  • the fleece (9, 108) is temporarily jammed and forms the in FIG. 15 Dashed line (32) in the gusset (31). Then, when the speed of the discharge belt (17,116) drops again and falls below the mean value, the nonwoven feed (22) is faster and pulls the slack (32) flat again.
  • the drafting or stretching device (5,104) and the compensating device (6) may be structurally different.
  • the pusher means (5, 104) may operate with other stretching or stowing means in place of the roller assemblies (11, 12, 13) or the conveyor belt portions (120, 121, 122, 123).
  • the fleece (9, 108) may also be buffered and delivered in a constant manner, compensating the fluctuations in output.
  • other units, for. B. fleece drawframes are installed between the various components of the fiber treatment plant (1) other units, for. B. fleece drawframes are installed.
  • the nonwoven fabric (9, 108) may also be discharged from the nonwoven layer (3, 102) to a roll store or the like instead of the solidification device (4).
  • measuring devices can be arranged in front of and / or behind the nonwoven layer (3, 102) and possibly also behind the solidification device (4), which supports the Measure and detect the profile of the pile (8,107) and / or the fleece (9,108). Via the controller (7,131) or another suitable controller, these measured values can be compared with stored default values and used to control the profile formation.
  • the number of conveying sections (121, 122, 123) may vary and be smaller or larger than in the illustrated embodiment.
  • the structural design of the conveyor line (120) and the conveyor sections (121,122,123) is variable. Instead of circulating conveyor belts, any other means of transport are possible. Alternatively, it can also be slippery and low-friction as well as stationary guide surfaces on which the pile (8, 107) slides along. Further, the nips (105, 106) may be formed in other ways than deliverable and driven pinch rolls (126, 127, 128).
  • the design variants shown in the various embodiments can also be interchanged and changed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Claims (22)

  1. Procédé pour profiler un non-tissé en plusieurs couches (9, 108), qui est étalé au moyen d'un étaleur-nappeur (3, 102) constitué d'au moins un voile (8, 107) acheminé par un dispositif de fabrication de voile (2, 103), le profilage s'effectuant par étirage et/ou compression du voile acheminé (8, 107), caractérisé en ce que le voile (8, 107) est étiré et/ou comprimé avec un dispositif d'étirage (5, 104) disposé entre l'étaleur-nappeur (3, 102) et le dispositif de fabrication de voile (2, 103), les variations de la vitesse de distribution de l'étaleur-nappeur (3, 102) provoquées par l'étirage et/ou la compression du voile (8) étant compensées dans un dispositif de compensation (6) disposé entre l'étaleur-nappeur (3, 102) et un dispositif de consolidation (4).
  2. Procédé selon la revendication 1, caractérisé en ce que le non-tissé (9, 108) distribué à des vitesses variables par l'étaleur-nappeur (2, 103) est tamponné dans le dispositif de compensation (6) puis est acheminé à une vitesse et en quantité essentiellement constantes à un dispositif de consolidation (4) monté en aval dans la direction d'avance (24).
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que la compensation des variations de distribution de l'étaleur-nappeur (3) est effectuée par un relâchement variable du tronçon supérieur (19) d'une bande d'accumulation sans fin (18) du dispositif de compensation (6).
  4. Procédé selon la revendication 1 ou 2, caractérisé en ce que la compensation des variations de distribution de l'étaleur-nappeur (3) est effectuée dans le dispositif de compensation (6) par un relâchement variable (32) du non-tissé (9, 108) dans un coin (31) entre une bande de sortie (17, 116) de l'étaleur-nappeur (3) et une alimentation en non-tissé (22) du dispositif de consolidation (4).
  5. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le voile (8, 107) est étiré et/ou comprimé par le dispositif d'étirage (5, 104) au niveau d'au moins deux points de serrage définis (105, 105', 106) disposés de manière espacée.
  6. Procédé selon la revendication 5, caractérisé en ce que les points de serrage (105, 105', 106) forment entre eux au moins une longueur d'étirage définie x, y pour le voile (8, 107), le voile (8, 107) étant transporté à des vitesses différentes au niveau des points de serrage (105, 105', 106).
  7. Procédé selon la revendication 5 ou 6, caractérisé en ce que la position locale des points de serrage (105, 105', 106) est modifiée pour la production de longueurs d'étirage de tailles différentes x, y.
  8. Dispositif de formation de profil (1) pour un non-tissé en plusieurs couches (9, 108), qui est étalé au moyen d'un étaleur-nappeur (3, 102) constitué d'au moins un voile (8, 107) acheminé par un dispositif de fabrication de voile (2, 103), caractérisé en ce que le dispositif de formation de profil (1) présente un dispositif d'étirage (5, 104) pouvant être disposé dans la région entre le dispositif de fabrication de voile (2, 103) et l'étaleur-nappeur (3, 102) pour l'étirage et/ou la compression du voile (8, 107) et un dispositif de compensation (6) pour le non-tissé (9, 108) pouvant être disposé entre l'étaleur-nappeur (3, 102) et un dispositif de consolidation (4), lequel compense les variations de la vitesse de distribution de l'étaleur-nappeur (3, 102) provoquées par l'étirage et/ou la compression du voile (8).
  9. Dispositif de formation de profil selon la revendication 8, caractérisé en ce que le dispositif de compensation (6) présente une bande d'accumulation sans fin (18) avec un relâchement variable du tronçon supérieur (19) et deux entraînements ajustables séparément (M6 et M7).
  10. Dispositif de formation de profil selon la revendication 9, caractérisé en ce qu'un entraînement arrière (M6) est accouplé à la vitesse de distribution variable de non-tissé de l'étaleur-nappeur (3, 102).
  11. Dispositif de formation de profil selon la revendication 9 ou 10, caractérisé en ce qu'un entraînement avant (M7) est ajusté à une valeur moyenne de la vitesse oscillante de l'entraînement arrière (M6).
  12. Dispositif de formation de profil selon l'une quelconque des revendications 9 à 11, caractérisé en ce qu'un entraînement avant (M7) est accouplé à l'alimentation en non-tissé (22) du dispositif de consolidation (4).
  13. Dispositif de formation de profil selon la revendication 8, caractérisé en ce que le dispositif de compensation (6) présente un coin (31) pour recevoir un relâchement de non-tissé (32) entre des poulies de renvoi espacées (29, 30) d'une bande de sortie (17, 116) et une alimentation en non-tissé (22) sur le dispositif de consolidation (4), la commande (7, 131) pouvant émettre une valeur directrice de vitesse déterminée par le biais du profilage pour l'entraînement (M8) de l'alimentation en non-tissé (22).
  14. Dispositif de formation de profil selon l'une quelconque des revendications 8 à 13, caractérisé en ce que le dispositif d'étirage ou d'allongement (5, 104) présente au moins deux points de serrage (105, 105', 106) pour le voile (8, 107) et présente une commande (7) à laquelle l'étaleur-nappeur (3, 102) peut aussi être raccordé.
  15. Dispositif de formation de profil selon l'une quelconque des revendications 8 à 14, caractérisé en ce que le dispositif d'étirage ou d'allongement (5, 104) est intégré dans l'étaleur-nappeur (3, 102) au niveau de sa région d'entrée (33).
  16. Dispositif de formation de profil selon l'une quelconque des revendications 8 à 15, caractérisé en ce que le dispositif d'étirage ou d'allongement (5, 104) et l'étaleur-nappeur (3, 102) sont commandés pour former le profil du non-tissé (9, 108) sur l'étendue du voile.
  17. Dispositif de formation de profil selon l'une quelconque des revendications 14 à 16, caractérisé en ce que les points de serrage (105, 105', 106) forment entre eux au moins une longueur d'étirage définie x, y pour le voile (8, 107), le voile (8, 107) pouvant être transporté au niveau des points de serrage (105, 105', 106) à des vitesses différentes.
  18. Dispositif de formation de profil selon l'une quelconque des revendications 14 à 17, caractérisé en ce que des points de serrage (105, 105', 106) d'emplacement variable sont prévus pour produire des longueurs d'étirage de tailles différentes x, y.
  19. Dispositif de formation de profil selon l'une quelconque des revendications 14 à 18, caractérisé en ce qu'un ou plusieurs agencements de rouleaux de serrage entraînés (11, 12, 13) ou une ou plusieurs portions de bande transporteuse de serrage (120, 121, 122, 123) avec des rouleaux de serrage (124, 125, 126, 127, 128, 129) avec des entraînements commandables (M5, M4 et M3) sont disposés au niveau des points de serrage (105, 105',106).
  20. Dispositif de formation de profil selon la revendication 19, caractérisé en ce que les rouleaux de serrage (124, 125, 126, 127, 128, 129) sont montés de manière à pouvoir avancer de manière commandée (27).
  21. Dispositif de formation de profil selon la revendication 19 ou 20, caractérisé en ce que les agencements de rouleaux (11, 12, 13) ou les portions de bande transporteuse (121, 122, 123) avec leurs entraînements (M5, M4 et M3) pour l'étirage du voile (8, 107) sont ajustés à des vitesses croissantes dans la direction d'avance du voile (23).
  22. Dispositif de formation de profil selon l'une quelconque des revendications 19 à 21, caractérisé en ce que les entraînements (M) guidant le voile de l'étaleur-nappeur (3, 102) sont accouplés par le biais de la commande (7, 131) à l'entraînement (M3) du dernier agencement de rouleaux de serrage (13) ou de la dernière portion de bande transporteuse de serrage (112) au niveau du point de serrage (105) du côté de la sortie, et leurs vitesses peuvent être modifiées en commun.
EP05022667A 2001-04-23 2002-04-23 Procédé pour profiler un non-tissé et dispositif de formation de profils Revoked EP1643022B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE20107004U DE20107004U1 (de) 2001-04-23 2001-04-23 Profilbildungseinrichtung
DE20117627U DE20117627U1 (de) 2001-10-31 2001-10-31 Verzugseinrichtung
EP02778850A EP1381721B1 (fr) 2001-04-23 2002-04-23 Procede pour profiler un non-tisse et dispositif de formation de profils

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EP02778850A Division EP1381721B1 (fr) 2001-04-23 2002-04-23 Procede pour profiler un non-tisse et dispositif de formation de profils
EP02778850.4 Division 2002-04-23

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EP1643022A1 EP1643022A1 (fr) 2006-04-05
EP1643022B1 true EP1643022B1 (fr) 2010-09-01

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EP05022667A Revoked EP1643022B1 (fr) 2001-04-23 2002-04-23 Procédé pour profiler un non-tissé et dispositif de formation de profils
EP02778850A Expired - Lifetime EP1381721B1 (fr) 2001-04-23 2002-04-23 Procede pour profiler un non-tisse et dispositif de formation de profils
EP05022670A Expired - Lifetime EP1647617B1 (fr) 2001-04-23 2002-04-23 Procédé pour profiler un non-tissé et dispositif de formation de profils

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EP02778850A Expired - Lifetime EP1381721B1 (fr) 2001-04-23 2002-04-23 Procede pour profiler un non-tisse et dispositif de formation de profils
EP05022670A Expired - Lifetime EP1647617B1 (fr) 2001-04-23 2002-04-23 Procédé pour profiler un non-tissé et dispositif de formation de profils

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EP (3) EP1643022B1 (fr)
DE (3) DE50211901D1 (fr)
ES (2) ES2265058T3 (fr)
WO (1) WO2002101130A1 (fr)

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EP1647617B1 (fr) 2008-03-12
DE50211901D1 (de) 2008-04-24
ES2302111T3 (es) 2008-07-01
WO2002101130A1 (fr) 2002-12-19
EP1381721B1 (fr) 2006-06-07
EP1381721A1 (fr) 2004-01-21
DE50214639D1 (de) 2010-10-14
EP1647617A1 (fr) 2006-04-19
EP1643022A1 (fr) 2006-04-05
ES2265058T3 (es) 2007-02-01
DE50207108D1 (de) 2006-07-20

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