ES2265058T3 - Procedure for the profile of a non-fabriced material and profile formation device. - Google Patents

Procedure for the profile of a non-fabriced material and profile formation device. Download PDF

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Publication number
ES2265058T3
ES2265058T3 ES02778850T ES02778850T ES2265058T3 ES 2265058 T3 ES2265058 T3 ES 2265058T3 ES 02778850 T ES02778850 T ES 02778850T ES 02778850 T ES02778850 T ES 02778850T ES 2265058 T3 ES2265058 T3 ES 2265058T3
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Spain
Prior art keywords
veil
nonwoven
tightening
holder
stretching
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ES02778850T
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Spanish (es)
Inventor
Johann Philipp Dipl.-Ing. Dilo
Manfred Schaffler
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
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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
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Publication of ES2265058T3 publication Critical patent/ES2265058T3/en
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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

Procedure for profiling a multilayer nonwoven material (9, 108) that is laid by means of a nonwoven material holder (3, 102) from at least one veil (8, 107) fed by a veil producer (2 , 103), profiling by stretching and / or highlighting of the fed veil (8, 107), characterized in that the veil (8, 107) is stretched and / or stressed with a controlled device (1) for forming the profile in the minus two defined tightening sites (105, 105``, 106) arranged at a certain distance in the area between the non-woven material holder (3, 102) and the veil producer (2, 103).

Description

Procedure for profiling a material non-woven and profile forming device.

The invention concerns a method for the profiling of a multilayer nonwoven material and a device of profile formation for a non-woven material of this class with the features of the preamble of the claims main procedural and device.

It is known by the document EP-A-0 315 930 the resource to vary the thickness or density of the multilayer nonwoven material deposited by a holder of nonwoven material on a tape extraction by relative variations of the output speed of the veil in the carriage and the translation speed of the laying car When the carriage moves with more how quickly the veil comes out, the veil deposited on the tape Extraction is stretched and thinned. Reciprocally, if the car of laid moves more slowly than the exit speed of the veil, the deposited veil becomes thicker. Therefore, it Thin or regreases the nonwoven material. Through a control corresponding of the carriage speed and the speed Veil output can influence these effects locally and as for its magnitude, with what is created in the shopkeeper himself of the nonwoven material the thickness profile of the nonwoven material With the desired configuration. WO 97/19209 shows a Execution form further developed for this.

It is known by the documents EP-A-0 371 948 and WO 99/24650 a profiling device that is integrated in the card or card. In this case, the profile of the veil that comes out of the card is varied in its thickness or density by means of a variable removal of the veil in the card. This technique slows the card and limits the working speed of the entire fiber installation. Variations in thickness and density of the veil are generated in function of the respective position of the carriage in the nonwoven material holder with a temporary advance corresponding, so that said nonwoven material is deposited then on the extraction tape in the respective place wanted. Therefore, the variation of the thickness of the nonwoven material and the thickness profile of the non-woven material are generated and determined here before the holder of the nonwoven material.

It is also known by the document DE-C-43 04 988 the appeal to stretch or emphasize the veil fed by the card with continuous speed and constant thickness or density by varying the level of full speed of the nonwoven material holder in the area of transition between the card and the holder of the non-woven material. When the holder of the non-woven material and its input tape is move faster than the veil supplied by the card, it stretch the veil Reciprocally, when the material holder does not tissue moves more slowly than the veil fed by the card, said veil is braked and accumulated or emphasized, thereby increasing the thickness or density.

Document DE 32 45 517 A1 deals with a Stretching mechanism for non-woven materials of multilayer fibers  which is arranged between a nonwoven material holder and a postponed consolidation device, for example a machine needles The stretch mechanism of the non-woven material serves to uniformly reduce the thickness of the multilayer nonwoven material, adjusting the stretch mechanism of the non-woven material to a correspondingly constant operation. Above all, the Stretch mechanism of non-woven material serves to homogenize said nonwoven material and reorient the fibers in the non-woven material in order to achieve the most equal relationship possible of longitudinal resistance to transverse resistance of non woven material. A stretch mechanism of nonwoven material similar is also known by the document US-A-4,547,936. The document US-A-3,708,831 reveals a mechanism of expansion to widen a multilayer nonwoven material.

The purpose of the present invention is to indicate a different and improved possibility of profiling non woven material.

The invention solves this problem with the characteristics of the main procedural claims  and device. The profile formation technique and the profile forming device with the device deformation to be placed before the holder of nonwoven material, preferably a stretching device, they have the advantage of that the influence of the thickness of the veil takes place before the deposition of the veil on the evacuation belt of the holder of non-woven material in a defined area and with possibilities of enhanced influence on your action and especially better controllable Therefore, the card can work constantly and produce a veil with constant speed and thickness or density constant, which is favorable for the quality of the veil. Also I know they can reach very high working speeds of 100 m / min and more.  The veil fed directly or indirectly to the device stretching is influenced first in said stretching device and it is stretched in it preferably. This stretch and the inherent veil thinning can be precisely controlled and influence the veil carefully. At the same time, by a proper design of the stretching device you can influence the thickness or density of the veil within wide limits, with which there are very wide control possibilities scope for the thickness or density of the nonwoven material that comes out of the holder of said material.

The deformation device has the advantage that can be created by means of at least two tightening sites distanced a precise definition of the deformation length, within which the veil fed is influenced in the manner desired for obtaining deformation and especially is stretched. Obtaining deformation can be better controlled and more precisely through the defined deformation length. Veil deformation can thus be controlled with more precision of conformity with its position and magnitude in the veil. In this way, it they can also take into account different class needs and different veil thicknesses.

Through locally variable tightening sites it is possible to influence and vary in this case also the magnitude of the deformation length and especially the stretching length. This allows an optimal adaptation to classes and veil thicknesses different. Elastic veils, which also generally have a thicker veil, preferably treated with a short stretch deformation length or a short length of stretch In this way, a plastic deformation of the veil is achieved which is not canceled again after leaving the sites of squeeze and stretch device but it remains in the desired site and with the desired intensity in the veil. In the case of elastic and thick veils, it is also advisable to do relatively large the difference in speed between transport speeds at tightening sites. To see more rigid and / or thinner you can work with greater lengths of deformation or stretching. By increasing the sensitivity of the veil also generally increases the length of deformation or stretching Used to obtain deformation.

In addition, it is possible to subdivide the length of deformation or stretch length in several sections to get deformations or differences in transport speed even greater at the tightening sites.

In the tightening sites they are used, for achieve the tightening effect and the desired speed differences,  preferably driven tightening rollers that can be apply to the desired measure to the veil and a counter roll also driven or to a conveyor belt or similar. The sites of tighten can be created differently and on sites different in accordance with the constructive configuration of the non-woven material, veil stretch or Veil Producer

In a preferred embodiment the stretching device consists of several provisions of  rollers, especially pairs of stretch rollers, or by several Conveyor belt sections with approximate tightening rollers that imprison the veil between them and then stretch it with continuous speed increases. Therefore, it varies also the speed level of the nonwoven material holder postponed, so that the influence of the veil takes place on everything in the stretching device and the material holder not tissue receives the veil from the stretching device by adapting speed and substantially without a additional variation of said veil.

The stretching device is controlled advantageously along the veil travel and depending on the carriage position. In case of a proper design of the nonwoven material holder, the veil travel between the entry site and exit site in the carriage is always the same, since car travel variations of laying are compensated by corresponding variations of the travel of the upper carriage and the input belt or the loop of tape between the upper car and the laying car. It gets like this an especially simple and precise control possibility. Further, specific variations of the product in the laying width, the number of layers and Similar.

The stretching device has the advantage of which can not only be mounted on new material holders not tissue and even integrate instead of the feeding belt used so far. The stretching device can be mounted subsequently also in non-woven material tents existing without problems and without a high occupation of space. The Card or existing card can still be used as well. Alternatively, there may also be an allocation to producers of veil or incorporation into a total installation. It is not necessary any renovation work of the complete installation for non-woven materials, as in the documents EP-A-0 371 948 or WO 99/24650. In addition, the stretching device requires only a small space consumption and a small construction cost. It represents an especially cheap and profitable possibility, as well as highly effective time for deliberate profile formation in nonwoven materials.

Also, the profile forming device may present a compensation device for material not fabric to be arranged next to the material holder non-woven and that provides a constant delivery speed of non-woven material to machines to be mounted next, especially a consolidation device, preferably a needle machine In this way, the speeds of the fluctuating extraction belt with the speed level of the nonwoven material holder during the formation of the profile.

The compensation device can be integrated also in new holders of non-woven material or mounted subsequently in existing non-woven material holders. It also requires only a small construction cost and a Small occupation of space. It can be controlled so simple and accurate. It is also cheap and profitable.

Overall, the claimed profile forming device has the advantage that it can be used without problems along with a new non-woven material holder or an existing non-woven material holder in existing fiber treatment facilities. Neither the card nor the needle machine has to be adapted or varied. These machines can be configured as standard components, which is especially cheap and cost effective. The total formation of the profile of the nonwoven material takes place in the area of the holder of the nonwoven material, although the holder of the nonwoven material does not have to contribute to it and, therefore, can also be configured as a standard machine
cheap.

The subordinate claims indicate advantageous embodiments of the invention.

The invention is represented in the drawings a Sample title and schematically. Show in particular:

Figure 1, a device for forming profile with a holder of non-woven material and a producer of veil,

Figure 2, a plan view of the device of formation of the profile and of the nonwoven material holder,

Figure 3, a front elevation of the device of forming the profile with the holder of the non-woven material and a consolidation device postponed according to arrow III of the figure 2,

Figures 4 and 5, different diagrams of speed and thickness of the veil,

Figure 6, a variant of the device profile formation of figure 1 with a device simplified deformation,

Figure 7, an enlarged representation and a variant of the deformation device of Figure 6,

Figure 8, another variant of the device deformation with subdivided transport sections,

Figures 9 and 10, other variants of the deformation device of figure 8,

Figure 11, a device for forming profile according to figure 1 with a variant of the device deformation of figures 8 to 10,

Figures 12 and 13, detailed representations of the deformation device of Figure 11,

Figure 14, a variant of the device profile formation of figure 3 and

Figure 15, a detailed representation enlarged from zone XV of figure 14.

In figures 1 to 3, 6 to 10 and 11 to 15 it has been represented in different ways of execution an installation of fiber treatment or a device 101 for manufacturing nonwoven materials consisting of a veil producer 2, 103, for example a card or card, a material holder non-woven postponed 3, 102 and a consolidation device 4 to its Once postponed, for example a needle machine. The holder of nonwoven material 3, 102 is associated by integration or assembly later a profile forming device 1 that is consisting of at least one deformation or stretching device 5, 104 and eventually also a compensation device 6.

The invention concerns the process of profiling and profile forming device 1. It also covers  also the nonwoven holder 3, 102 equipped with a profile forming device 1, as well as the entire installation of fiber treatment or the entire device 101 for manufacturing nonwoven materials.

In veil producer 2, 103 one or several thin single-band veils 8, 107 from a material fibrous looser, which are fed to the non-material holder fabric 3, 102 in the direction 23 of displacement of the veil. He nonwoven holder 3, 102 deposits each individual veil 8, 107 or the various veils (not shown) on their ribbon transverse evacuation 17, 116 to form a nonwoven material multilayer 9, 108. The nonwoven material 9, 108 then arrives at the direction 24 of movement of said nonwoven material to subsequent consolidation device 4, where it is consolidated properly by means of needles or by effect of products chemicals sprayed on it, by thermal influence or Similar. The consolidation device 4 can be of any proper construction class. Preferably, it is a Needle machine shown in the drawings.

The nonwoven holder 102 may be configured in any suitable manner. In the embodiment shown in Figures 1, 6 and 11, it is a so-called nonwoven belt holder that has two endless conveyor belts 114, 115, which are driven by rotation, which are guided by means of two main carriages, namely, an upper carriage 110 and a lower carriage 16, 111, and which receive between them and guide the veil fed 8, 107 in the area between the two main carriages 110, 16, 111. In the embodiments shown is a nonwoven material holder 3, 102 running in the same direction, in which the two main carriages 110, 16, 111 always move in the same direction. Alternatively, it can also be a non-woven countermarketer with main carriages 110, 16, 111 moved in opposite directions, such as that represented, for example, in DE-C 43 04 988. In addition, the The nonwoven holder 3, 102 may still have one or more auxiliary carriages 112 that keep the conveyor belts 114, 115 stretched. The veil 8, 107 fed by the veil producer 2, 103 through the profile forming device 1 and its deformation or stretching device 5, 104 is deposited and arranged on boards by the laying car 16, 111 moved reciprocatingly on an extraction belt 17, 116 which extends transversely to the movement of the laying car, forming from of the monolayer veil 8, 107 a multilayer nonwoven material 9, 108 on the extraction tape 17,
116.

Veil 8, 107 is collected in the holder of non-woven material 3, 102 on an integrated feeding belt 109 or an input ribbon preposed 15 in the direction 23 of veil displacement and, for example, is fed into position open to a tape inlet 113 of the upper carriage 110. In the Embodiment shown and preferred the feeding belt 109 is a section of a conveyor belt 114. At the entrance of belt 113 the second conveyor belt 115 is added, forming between the conveyor belts 114, 115 an input funnel in the upper carriage 110. In the embodiment shown the tenderer of nonwoven material 3, 102 corresponds to the embodiment known from WO 97/19209. Alternatively, you can be also set corresponding to the documents EP-A-0 517 568 or WO 91/156018. In another variant can also be a so-called tenor of car, in which the conveyor belts are not guided jointly through both main cars.

The nonwoven material holder 3, 102 has veil driving drives that are attached with a common controller 7, 131. These driving drives of the veil, which in figure 1 are represented with M motors and in the Figure 6 are indicated, for the sake of clarity, only by means of arrows, they consist, for example, of one or more drives for carriage movement movements upper 110, of the carriage 16, 111 and the carriages 112 auxiliaries, if any. In addition, among one or more veil driving drives drives that put the conveyor belts 114, 115 in rotation movement and power them. Tape drive extraction 17, 116 is also counted among the drives of Veil Driving

Veil producer 2, 103 may also be of Any kind of construction and configuration. It can be treated, for example, from a card or a card. The veil producer 2, 103 has a veil removal device 117 configured also arbitrarily, with which the veil can be removed of a drum or similar and transferred to the material holder not fabric 102 through veil feed 10 or the path of transport 120, preferably interleaved.

There are different possibilities for formation of the veil removal device 117. In the variant represented in figure 6 is present, for example, a call chopper 119 for veil removal. In the variant of the Figures 7 to 10 are provided, instead of the chopper, one or more extraction rollers 118 for the removal of the veil.

For profiling nonwoven material 9, 108 formed in the holder 3, 102 of said material the profile forming device 1. This includes a device deformation or stretching 5, 104 for veil 8, 107 which is disposed between the nonwoven holder 3, 102 and the veil producer 2, 103. The profile forming device 1 may also present a compensation device 6 for the nonwoven material 9, which is disposed between the holder of nonwoven material 3, 102 and the consolidation device 4.

The stretching device 5, 104 serves to vary the thickness or density of the veil 8, 107, which is fed by the veil producer 2, 103 preferably with invariable thickness and constant speed through a veil feeding 10. The stretching device 5, 104 slims then preferably veil 8, 107. In the case of a corresponding configuration, may eventually also emphasize it and compact it or make it thicker. The device 1 of profile formation has a controller 7 to which it is connected also the holder of non-woven material 3, 102. The device Stretch 5, 104 and the nonwoven holder 3, 102 are jointly controlled in this case, and profile formation of nonwoven material 9 explained in more detail below It is preferably controlled through the veil path. At case of new machines and installations, controller 7 can be integrated in the controller 131 of the material holder not fabric 3, 102 or in the material installation controller no tissue, for example as a software module. However, it can be also arranged separately and united only with the Existing controller 131 of the nonwoven holder 3, 102

The stretching device 5 has in the variant of figures 1 to 3 a transport path with several roller arrangements 11, 12, 13 arranged one after another in the direction 23 of displacement of the veil and equipped with drives controllable M5, M4 and M3. In the form of execution shown they are present three arrangements of rollers. However, there may be also more or less, as presented, for example, then in figures 6 and 7.

Roller arrangements 11, 12, 13 form three tightening sites and serve to thin and stretch the veil 8. They are constituted in this case, each of them, by pairs of mutually opposite rollers that imprison the veil 8 between them and They carry it with adjustable speed. The M5, M4 and M3 preferably drive both respective rollers of the roller pairings 11, 12, 13. However, as alternatively, they can also drive only one roller respective, for example the lower roller of the pairings of rollers 11, 12, 13, always being configured corresponding upper rollers as tightening rollers freely rotating companions. The rollers can be Built as smooth wall rollers. However, they may have also a surface sprayed or provided with needles stretch

In front and / or behind the provisions of rollers 11, 12, 13 may be arranged one or more rollers of guide 14 with own drives M1, M2, which also act on the veil 14. The guide roller 14 on the inlet side is arranged here above the veil feed 10 and especially above the rear tightening roller of the veil feed 10. This guide roller 14 and its drive M2 are coupled to the speed of the veil feed 10 or a the delivery speed of the veil producer 2. Veil 8 is trapped and transported between this guide roller 14 and the veil feeding 10.

The guide roller 14 on the outlet side is associated with its drive M1 to the input belt 15 of the nonwoven material holder 3 and is preferably on the front deflection roller of this input belt 15. The M1 drive is coupled to the speed or to the drive the input belt 15, so that the roller of guide 14 and input tape 15 always move in sync and they carry the veil 8 imprisoned between them.

The stretching device 5 is switchable in sway between a normal step stage and one or several stages of stretch In the step stage no stretching of the veil 8, so that this veil 8 retains its thickness and density determined by the veil producer 2. At this stage of passage the roller arrangements 11, 12, 13, guide rollers 14 and also the input tape 15 of the non-woven material holder 3 they have a preferably constant speed level adapted to the veil feed rate of veil producer 2. In this case, rollers, tapes and other transport devices for the veil 8 arranged one after another in the direction 23 of veil displacement can certainly have a level of gradually increasing speed to keep the veil 8 permanently under slight traction, but without stretching it then to a significant degree. The other M drives of the nonwoven material holder 3 are then adjusted also to via controller 7 to a normal laying function, so which is also formed with the veil 8 deposited with thickness constant on the evacuation tape 17 a non-woven material multilayer 9 with constant thickness or density.

In the stage or stages of stretching it becomes thinner and stretch the veil 8 on the stretching device 5. In this case, the M5, M4 and M3 drives of the roller arrangements 11, 12, 13 in the direction 23 of veil travel are set to stepwise increasing speeds. This has the consequence that the veil 8, starting at the feeding of veil 10 and in the guide roller 14 disposed there, is transported more quickly from one roller arrangement 11, 12, 13 to the next and so it is put under traction and, therefore, is stretched. Due to the adjustment of squeeze between the pairs of rollers is transported and also Hold the veil securely.

The nonwoven material holder 3 is coupled, especially with its input tape 15 and on the others M veil driving drives, through controller 7, with the M3 drive of the last roller arrangement 13. A this is also coupled the guide roller 14 on the outlet side with its M1 drive. The input belt 15 and the roller guide 14 move like that with exactly the same speed or just in interest of a light load of constant traction, with a rapidity slightly larger than the last roller arrangement 13 of the stretching device 5.

The stretching device 5 forms in the stage or stages of stretching, in certain areas of the veil 8, about slimming that is deposited by the laying car 16, in predetermined sites of the laying width, on the tape of evacuation 17. Concordance and progress determined through travel controller are determined through controller 7 and the profile training program there filed and executed.

Figure 4 illustrates these processes in a diagram in which the speeds of the different drives, that is, the peripheral speeds of the respective means of transport, and the thickness d of the veil have been recorded according to of the route s. As the diagram illustrates, the V speeds of the Veil feed 10 and roller drives M, M1 a M5 are the same at the beginning in the step stage. Therefore, the thickness d of the veil 8 is also constant. In the stage of stretching speeds V of the drives are increased roller M1, M3, M4, M5 and the M driving drives of veil of the nonwoven material holder 3, crossing a ramp of preset acceleration. In this case, the different speeds of the rollers have increased stepwise. The M1 and M3 roller drives rotate faster than the M4 roller drive and this in turn faster than the M5 roller drive. The M2 roller drive and also the speed of the veil feed 10 remain then constant. Due to these speed variations it stretches and thins veil 8, which manifests itself in the reduction of the thickness d of the veil shown in the diagram.

The stretch stage remains constant for a path s preset by the profile training program and it retract later again, the high ones being retracted again Roller speeds up to the level of the step stage. By consequently, the thickness d of the veil increases again until the original level

Variations in speed and thickness of the veil shown in the diagram of figure 4 can in turn be varied in steps or continuously up or down to generate variations of different magnitude in the thickness d of the veil. Stretching stages may also be present, depending on program specifications, over a longer path or shorter.

The non-woven material holder 3 deposits the variations of veil thickness at predetermined sites of the laying width, while forming the nonwoven material multilayer 9. In this case, for the advance and recoil of the car of laying 16 a laying behavior can be maintained identical or a different laying behavior.

Preferably, the thicknesses are reduced here. of the veil especially in the areas of the edge of the nonwoven material 9, which takes place on both sides of the nonwoven material during the advance and retraction of the carriage 16, preferably when each veil layer is deposited on the extraction tape 17. Multilayer nonwoven material 9 obtains thus a convex profile in which the thickness of said material does not fabric is greater in the center than in the edges. In addition, you can also make profile variations in the intermediate zone of the non woven material.

The formation of a profile in the material does not tissue can serve different purposes. On the one hand, you can thus react to peculiarities of the consolidation device 4, Especially a needle machine. Needle machines have in general the peculiarity that, due to deformation necessary, the nonwoven material 9 shrinks wide and is contraction of width leads to thickening in the area of selvedge, bringing the final product out of the machine needles 4 has an uneven thickness or density along the laying width This is deliberately counteracted by the formation of the aforementioned profile in the nonwoven material. In this case, apart from these marginal effects, can be lent attention also to other faults of homogeneity of the machine needles 4 or other consolidation device generated within the laying width. As an alternative, using the technique of Profile formation can also be given to the final product of nonwoven material that comes from consolidation device 4, in instead of a uniform thickness, a thickness intentionally different in certain places, in case this final product must already have a specific profile of the cross section for further elaboration.

The compensation device 6 is constituted in the form of execution shown by a tape endless accumulator 18 with a variable rope of the upper branch 19 and two separately adjustable M6 and M7 drives for one respective roller 20, 21 at the rear and front ends of the accumulator belt 18. With compensation device 6, compensate fluctuations in the delivery speed of the tape evacuation 17, which are caused by stretching described above of veil 8. In this way, the material does not tissue 9 is fed to consolidation device 4 postponed in the direction of travel 24 and to its feeding of non-woven material 22 with a speed and amount of transport At least widely constant. The compensation of delivery fluctuations of the nonwoven material holder 3 is produced by a variable rope of the upper branch 19. Figure 5 In this regard it shows a velocity diagram.

The M6 drive of the rear roller 20 is coupled to the delivery speed of the evacuation belt 17 and with its speed it oscillates up and down along with said headband. On the contrary, the M7 drive of the front roller 21 is set at a preferably constant speed that corresponds to the average value of the speed fluctuations of the M6 drive.

When the stretching device 5 thins the veil and nonwoven holder 3 with its ribbon evacuation 17 moves correspondingly faster, the M6 drive also travels faster than the M7 drive. In this way, the maximum rope rope is obtained top 19 shown in figure 3. In this case, the material does not tissue 9 delivered by the evacuation tape 17 accumulates in the upper branch loop. As soon as the stretching device 5 is switched back to the step stage and is also reduced from corresponding way the speed of the evacuation belt 17, the speed of the M6 drive also decreases until reach its average value and then be equal to the speed of the M7 drive. In this stadium the rope of the upper branch 19 adopts the central position shown in figure 3, being transported nonwoven material 9 without accumulation. When he stretching device 5 has reached the step stage and, by therefore, the evacuation belt 17 has also reached speed step and thus at the minimum speed, the M7 drive of the roller front 21 turns faster than the now minimum speed of the M6 drive. This has the consequence that the upper branch 19. In this case, the amount of material is evacuated nonwoven previously accumulated in the large rope and the compensation device 6. The movements of the upper branch 19 are compensated correspondingly by the tension or the rope of the lower branch of the accumulator belt 18, which, for the sake of greater clarity has not been represented in figure 3.

In the described setting of device 1 of profile formation stretching and thinning are formed in the veil 8 and, consequently, also in the non-woven material multi-layer deposited 9. In this way, most can be covered of the cases of application of the formation of a profile that Present in practice. The maximum thickness of the non-woven material is determined here by the normal and uninvolved thickness of the veil. As an alternative, it is also possible to make the device Stretch 5 work constantly on the average value over a veil stretching 8 and generate thinning of the veil by an additional stretch and an additional speed increase as well how to generate thickening of the veil by lowering the speed to the step stage. It is also possible to configure the stretching device 5 in another way and also accumulate and Thicken or compact the veil 8 if necessary. In this way, it they can generate both thinning and thickening of the veil 8. The compensation device 6 adapts so corresponding in these cases.

Figure 6 shows a variant of the device 1 for forming the profile and the deformation device 5, 104 or of drawing of figures 1 to 3. The manufacturing device 101 of non-woven material may also have a path of transport 120 between the nonwoven holder 102 and the veil producer 103. Alternatively, this path of transport 120 may also be integrated in the feed of veil of the nonwoven material 102.

The deformation device 104 is arranged between the nonwoven holder 102 and the veil producer 103 and has, in the same manner as the stretching device 5 described above of figures 1 to 3, two or more sites of tighten 105, 105 ', 106 arranged in this area for veil 107 powered by veil producer 103. The tightening sites 105, 105 ', 106 form between them a defined deformation length x, and for veil 107, veil 107 being transported at the sites tightening 105, 105 ', 106 with different speeds.

Preferably, the deformation device 104 is built as a stretching device, being transported veil 107 at the tightening site 105 turned towards the nonwoven holder 102 with a speed greater than in the tightening site 106 turned towards the veil producer 103.

The clamping sites 105, 105 ', 106 are formed by tightening rollers 124, 125, 126, 127, 128, 129 that are mounted so that they can be approximated to each other and that They have their own controllable drive. In this case, the clamping roller drives 124, 125, 126, 127, 128, which are arranged in the area of the nonwoven material holder 102, are connected with the common controller 131 of the latter. The clamping rollers 124, 125, 126, 127, 128 on the side of the holder non-woven material are coupled here at the speed level of the driving drives of the veil and can be varied evenly in height with this speed level. In the other one clamping site 106, which is turned towards the veil producer 103, the tightening rollers 129 or the extraction roller 118 are operated substantially with the transport speed of the Veil producer 103 or veil removal device 117. This speed is usually constant, but alternatively it can also vary.

Transport path 120 is configured in the embodiment of figures 6 and 7 as a tape individual circulating conveyor that extends between the device 117 for removing the veil and the feeding belt 109. Conveyor belt 120 is guided on rollers of deviation ends 130 and is driven. The speed of Drive can be constant or it can vary. May correspond, for example, to the delivery speed of the Veil Removal Device 117

In the embodiment of Figure 6 a site tightening 105 is in the nonwoven material holder 102 and on its feeding belt 109. The tightening roller corresponding 124 is arranged opposite at the site of deflection of the feed belt 109 and the roller Deviation mounted there. The tightening roller 124 is driven with the same peripheral transport speed as the belt feed 109 or conveyor belt 114. Veil 107 is fastened here between the tightening roller 124 and the tape conveyor 109 and transported on both sides with the same speed. The motor or drive of the tightening roller 124 is connected here with the controller 131. The tightening roller 124 has, in addition, an approach device with which it can be moved transversely to the feed belt 109 or the roller contiguous deviation to be able to adjust the necessary size of the tightening gap for veil 107.

The other clamping site 106 is in the rear end of the conveyor belt 120 that is turned towards veil producer 103. It is formed by a roller of tighten 129 also driven and approximate that is arranged in front of the rear deflection roller 130. The drive of the deflection roller 129 may also be connected with the common controller 131. The same also applies to the conveyor belt drive 120 (not shown). In the embodiment shown in figure 6 the tape conveyor 120 and bypass roller 129 move with the delivery speed of veil producer 103 or circulate eventually with a slightly higher speed to generate a slight permanent traction.

To obtain the desired deformation of the veil and especially the stretching of the veil, the drives of non-woven material holder's veil conduction 102 and the pinch roller 124 in the feed belt 109 are raised jointly and uniformly in its speed level, while the conveyor speed of conveyor belt 120 and tightening roller 129 remains constant. Due to this difference  of speed the veil 107 is correspondingly stretched and thinned which is located on transport path 120. Due to the clamping sites 105, 106 where the veil is attached is formed a defined deformation length x, and veil 107, after exit deformation device 104, retain deformation introduced or stretching along the path to the tape inlet 113. Time and duration of deformation Veil or stretch fit the desired shape of the multilayer nonwoven material 108. These are generated with an advance in the time so large that they are deposited by the laying car 111 in the desired place on the extraction belt. The path from the clamping site 105 to the exit site in the carriage Laying 111 is constant in this case.

Figure 7 shows a variant of the device deformation of figure 6. In this case, the tightening site 105 is located at the front end of the transport path 120 which is turned towards the holder of non-woven material 102, and it is formed by a tightening roller 125 arranged here, Approximate and powered. In addition, it may be present eventually also the tightening roller 124 described above in the feeding belt 109. The rear tightening site 106 is is in the veil removal device 117 and is formed by its extraction rollers 118 on the output side, which they also hold the veil 107 between them and transport it with the delivery speed of veil producer 103. In this variant the conveyor belt 120 is driven with variable speed, varying its speed level evenly with the level of speed of the driver's veil driving drives of non-woven material 102. To produce a stretch of the veil, the tightening roller 125 and the conveyor belt 120 move  in synchronism with the veil driving drives of the non-woven material holder 102 at the desired height for the profiled and during the desired period faster than the delivery speed of veil producer 103.

As a variation with respect to the function previously described of the stretching device 104 of the figure 7, the stretch length x can also be formed between the clamping rollers 124, 125 and the corresponding rollers of deviation. To generate a stretch of the veil, the roller squeeze 124 and feed belt 109 move in synchronization with the veil driving drives of the nonwoven material 102, while the roller tighten 125 and the conveyor belt 120 travel in synchronism with the veil producer 103.

Figure 8 shows another variant of the deformation device 5, 104 which is based on the variant of Figures 1 to 3. Instead of the roller pairs 11, 12, 13 of Figures 1 to 3, the transport path 120 is subdivided in figure 8 in several, here preferably three sections of transport 121, 122, 123. Each transport section 121, 122, 123 has at least one approximate tightening roller associated and driven 126, 127, 128, these clamping rollers meeting preferably at the front end of the transport section which it is turned towards the holder of non-woven material 102. The sections of transport 121, 122, 123 are formed here by short ribbons conveyors that circulate in triangle on rollers of deviation 130 and whose drive motors M3, M4, M5 are individually controllable and preferably connected also to the common controller 131 of the nonwoven material holder 102 and of the profile forming device 1.

In this subdivided transport path 120 the tightening sites 105 can be varied in magnitude and position, 106 and the stretch length x defined by them. In the variant shown the rear tightening site 106 is stationary and is formed, as in figure 7, by the extraction rollers 118 of the veil removal device 117. On the contrary, the front clamping site 105 is locally variable along of the transport path 120 and is formed by the respective Approximate tightening roller 126, 127, 128. In the form of shown embodiment of figure 8 the central tightening roller 127 is approximated to its section of conveyor belt 122 and forms the tightening site 105. The other two adjacent tightening rollers 126, 128 are separated and have no transport contact with the veil 107. The drives of the tightening rollers 127 and the stretch of conveyor belt 122 at the tightening site 105 are coupled with the veil driving drives of the grocer of non-woven material 102 and are raised and lowered in synchronism and uniformly together with these to generate the desired deformation of the veil. The conveyor belt section 121 immediately next in the direction of transport of the veil is uploaded and also lowered in the same way synchronized at the level of speed. The third section of conveyor belt 123 can be operated here also with the speed level of the tenderer of non-woven material 102, but alternatively it can also be with the delivery speed of the veil unloader 103 or the extraction rollers 118 or, in an additional variant, with a differential speed between transport speeds in tightening sites 105, 106.

The deformation device 104 of Figure 8 it can also be made to work in other configurations and functions. Figures 9 and 10 show two variants in this regard. where all the clamping sites 105, 105 ', 106 are located in the area of transport path 120 or the sections of transport 121, 122, 123. In the variant of figure 9 the two end tightening rollers 126, 128 are approximated to veil 107 and its corresponding sections of conveyor belt 121, 123 and form the clamping sites 105, 106. The clamping roller Central 127 is separate and has no transport contact veil. The front tightening roller 126 in the direction of Veil feeding and its conveyor belt section 121 are coupled to the veil driving drives of the holder of non-woven material 102 and move up and down in Speed level in sync with the latter. Roller back tightening 128 and its length of conveyor belt 123 can be coupled to the delivery speed of the veil producer 103 or of the veil discharge device 117 and move along with East. However, the speed level at the clamping site 106 it can also be set to another value and be higher than the delivery speed of veil producer 103.

In a variant not shown in Figure 9 It is also possible to shorten the deformation or stretch length x approaching the two front tightening rollers 126, 127 to veil 107 and separating the rear tightening roller 128. By therefore, with the deformation device 104 of Figure 8 it is possible to vary at will the magnitude and position of the length of deformation or stretch length x.

Figure 10 shows another variant in which the three clamping rollers 126, 127, 128 are in coupling of transport with veil 107 at three tightening sites 105, 105 ', 106. In this variant the length of deformation or of stretch in two sections x and y, with which they are generated different stretches The central tightening roller 127 and its stretch of conveyor belt 122 moves faster than the rear squeeze roller 128 and its conveyor belt section 123. The front tightening roller 126 and its section of belt conveyor 121 move in turn faster than the roller of central tightening 127 and its section of conveyor belt 122. The cascade speed levels are also determined by the common controller 131 and are raised and lowered in their staggering evenly with the speed of driving drives veil of the nonwoven material holder 102. In all shapes of execution shown, the production of deformation and especially the stretching of the veil as soon as Veil driving drives of the material holder nonwoven 102 and the tightening rollers coupled in synchronism are move substantially again with the delivery speed of the veil producer 103. In this case, veil 107 is transported continuously and without deformation production.

Figures 11 to 15 show a third variant of the profile forming device 1 with modifications of the deformation or stretching device 5, 104 and of the compensation device 6.

In the nonwoven holder 3, 102 of Figure 11 the stretching device 5, 104 is integrated, with space saving, in the holder of non-woven material and in its housing in the entrance area 33 and occupies the site of the belt previous entry 15 of figure 1. The material holder does not modified fabric 3, 102 thus has substantially the same width that a conventional machine and therefore can also be integrated subsequently and permutation in an existing installation 101 of fiber treatment, without major renovation work.

However, as represented by the lines of strokes, the stretching device 5, 104 can also be a later adaptable component with its own housing part. This can later be mounted on a non-material holder existing conventional fabric 3, 102, adapting or changing, in addition, its controller 131 or by coupling it with the controller 7 of the profile forming device 1. This nonwoven material holder 3, 102 preferably has a integrated veil accumulator.

The stretching device 5 and its path of transport 120 are subdivided, analogously to figures 8 to 10, in, preferably, three transport sections 121, 122, 123 which they are each made up of sections of tape Conveyor circulating in space. The stretches of tape conveyor 121, 122 are configured here, analogously to which occurs in the execution example described above, of way that they circulate in triangle on deviation rollers 130, extending the triangle shape in the variant of the figures 11 to 13 in the sense of height and being of configuration elongated The conveyor belt sections 121, 122 form one with another a line that ascends obliquely in the direction 23 of veil displacement

The conveyor belt section 123 returned towards the veil producer or the veil feed 10 is of layered construction in the modification referring to figures 8 a 10 and is configured as a tiltable table 26 that is adjustable in height and that can be adapted to the respective position of the veil feed 10 or veil removal device 117. The tilting table 26 assumes the function of the input belt here 15 in the variant of figure 1. The conveyor belt section 123 is configured here in the table area that protrudes from the housing as a feeding belt 25 that can be maintained under traction eventually by means of a tension roller.

Figures 12 and 13 illustrate in a expanded representation the construction of the machine structure of the stretching device 5, 104. For the sake of clarity, in figures 11 and 12 the tightening rollers have been removed 126, 127, 128. These are represented in Figure 13.

In the machine frame of the device stretch 5, 104 are arranged respective rollers of tighten 126, 127, 128 above the deflection rollers 130 of the transport sections 121, 122 that are located in front of the direction 23 of displacement of the veil. You can do without possibly of the third rear tightening roller 126, which is manifested in figure 13 through online representation of strokes. Alternatively, the roller can also be suppressed. central tightening 127.

The tightening rollers 126, 127, 128 are fixed with its roller frame in rows of vertical holes of the machine frame and can thus be brought to the position in necessary height with respect to the conveyor belt sections 121, 122, 123 running obliquely upward. The clamping rollers 126, 127, 128 are mounted on their frames of rollers so that they can be adjusted in height by means of cars, and can be dragged vertically down and brought in the necessary way against veil 8, 107 or their corresponding sections of conveyor belt 121, 122, 123 by means of an approach device 27, for example a cylinder.

The clamping site 106 turned towards the Veil producer 2, 103 is formed by the first section of tape layered conveyor 123 on the inlet side and its roller squeeze 128. Both move here substantially with speed Veil delivery. The second clamping site 105 is created in Figure 13 along the section of adjacent central conveyor belt 122 and its tightening roller 127. Both move faster or more slowly than the speed of delivery of the veil to profile the veil 8, 107 or nonwoven material 9, 107 in the manner previously described. When three or more sections of conveyor belt 121, 122, 123 and tightening rollers 126, 127, 128, may alternatively also be formed, as in Figure 10, one or more additional tightening sites 105 '.

Figures 14 and 15 illustrate a variant of the compensation device 6 already indicated at the beginning in the figure 3. In this case, the evacuation belt 17, 116 is connected directly to the non-woven material feed 22 of the Needle machine 4 or other consolidation device. Be thus suppress the accumulator belt 18 with the variable rope rope top 19 of figure 3. In the feeding of non-woven material 22 of figure 14 the upper branch is always tensioned and is held, for example by a table or similar, in at least one important part of its length.

In this variant of figures 14 and 15 the controller 7, 131 of the nonwoven holder 3, 102 or of the profile forming device 1 delivers a guide value constant to controller 28 of needle machine 4, which then drives the belt through the M8 drive continuously circulating feed conveyor of nonwoven material 22 with a corresponding constant direction 24 of displacement of nonwoven material. The guide value is calculated by controller 7, 131 as an average value of the different variable speeds of the M drives of Veil conduction of the nonwoven material holder 3, 102.

The deflection rollers 29, 30 of the belt evacuation 17, 116 and non-woven material feed 22 they are laterally spaced a certain distance from each other and form a wedge 31. In this wedge 31 it can be received in variable form a rope 32 of veil 9, 108 that is established according to the differences of speed

The extraction belt 17, 116 moves with slower and faster alternate speeds in accordance with the formation of the profile of the nonwoven material 9, 108. In addition, it can also remain temporarily stopped, which takes place, by example, when an adaptation to the carriage movement of lying. When the carriage 16, 111 remains stationary in the ends of its trajectory and changes direction, the tape of extraction 17, 116 remains stopped accordingly. Be you can move here also completely in sync with the car of laying 16, 111 and participate in the acceleration phases and braking of this one.

When the removal belt 17, 116 moves temporarily during profile formation faster than the conveyor belt of the non-woven material feed 22, that moves with the average speed value, piles up temporarily the nonwoven material 9, 108 and this forms in the wedge 31 the rope 32 shown with dashed line in figure 15. When, then, the speed of the evacuation tape 17, 116 and it falls below the average value, the feeding of non-woven material 22 is faster and makes the rope 32 is flattened again.

Variants of the forms of Execution shown in different ways. The device of deformation or stretching 5, 104 and the compensation device 6 They can be made with a different construction. He deformation device 5, 104 can work, for example, with other stretching or accumulation devices instead of arrangements of rollers 11, 12, 13 or of the sections of tape conveyor 120, 121, 122, 123. Similarly, in the device compensation 6 can also be temporarily accumulated from another way the nonwoven material 9, 108 with compensation of the delivery fluctuations and this material can be delivered in constant form In certain circumstances, you can do without completely of compensation device 6 when, by example, consolidation device 4 has a construction corresponding and can work with fluctuating speeds of veil feeding Also, between the different components of the fiber treatment installation 1 can be incorporated other units, for example interlocking mechanisms of the material non woven For example, the nonwoven material 9, 108 can be also delivered by the nonwoven holder 3, 102 to a roller accumulator or similar instead of the device consolidation 4.

In another embodiment not shown, measuring devices may be placed in front of and / or behind the non-woven material holder 3, 102 and possibly also behind the consolidation device 4, which measure and capture the profile of the veil 8, 107 and / or of the nonwoven material 9, 108. By means of the controller 7, 131 or other suitable controller, these measurement values can be compared with stored setpoint values and can also be used for a regulation of the formation of the
profile.

In other variants the number of sections of transport 121, 122, 123 may vary and be smaller or larger  than in the form of execution shown. Also, the configuration construction of transport path 120 and sections of Transport 121, 122, 123 is also variable. Instead of tapes of circulating transport, other means of Transportation of any kind. As an alternative, it can be treated also of sliding guide surfaces and poor in friction, as well as stationary, along which the veil slides 8, 107. Similarly, the clamping sites 105, 106 can be formed also other than by means of tightening rollers approximate and driven 126, 127, 128. In addition, the variants of configuration shown in the different forms of execution they can also be exchanged and varied among themselves.

List of reference symbols

one
             Profile forming device

2
             Veil producer, card, card

3
             Nonwoven material holder

4
             Consolidation device, needle machine

5
             Stretching device

6
             Compensation device

7
             Controller

8
             Veil

9
             Non-woven material

10
        Veil feeding

eleven
        First pair of rollers

12
        Second pair of rollers

13
        Last pair of roller

14
        Guide roller

fifteen
        Input tape

16
        Laying cart

17
        Evacuation tape

18
        Accumulator belt

19
        Upper branch

twenty
        Rear roller

twenty-one
        Front roller

22
        Non woven material feed

2. 3
        Veil Movement Direction

24
        Direction of movement of non-woven material

25
        Feeding belt

26
        Tilting table

27
        Approach device

28
        Needle Machine Controller

29
        Roller deviation of the extraction belt

30
        Material feed deflection roller no tissue

31
        Cradle

32
        Camber

33
        Entrance area

101
  Nonwoven material manufacturing device

102
  Nonwoven material holder

103
  Veil Producer

104
  Warping device, stretching device

105
  Tightening site

106
  Tightening site

107
  Veil

108
  Multilayer nonwoven material

109
  Feeding belt

110
  Upper carriage

111
  Laying cart

112
  Auxiliary car

113
  Tape input

114
  Conveyer belt

115
  Conveyer belt

116
  Extraction tape

117
  Veil Removal Device

118
  Extraction roller

119
  Picador

120
  Transport path, conveyor belt

121
  Transport section, conveyor belt section

122
  Transport section, conveyor belt section

123
  Transport section, conveyor belt section

124
  Tightening roller on the feeding belt

125
  Tightening roller on the conveyor belt

126
  Tightening roller on the conveyor belt section

127
  Tightening roller on the conveyor belt section

128
  Tightening roller on the conveyor belt section

129
  Squeeze roller in the unloader

130
  Conveyor belt deflection roller

131
  Controller

M
     Drives of different components of the material holder not tissue

M1
   Drive roller drive

M2
   Veil feed drive

M3
   Drive third pair of rollers, third section of transport

M4
   Drive second pair of rollers, second section of transport

M5
   Drive first pair of rollers, first section of transport

M6
   Rear drive accumulator belt

M7
   Front drive accumulator belt

M8
   Non-woven material feed drive

x
      Warp Length, Stretch Length

Y
      Warp Length, Stretch Length

Claims (13)

1. Procedure for profiling a multilayer nonwoven material (9, 108) which is laid by means of a nonwoven material holder (3, 102) from at least one veil (8, 107) fed by a veil producer (2, 103), profiling by stretching and / or highlighting of the fed veil (8, 107), characterized in that the veil (8, 107) is stretched and / or stressed with a controlled profile forming device (1) in at least two defined tightening sites (105, 105 ', 106) arranged at a certain distance in the area between the nonwoven holder (3, 102) and the veil producer (2, 103).
2. A method according to claim 1, characterized in that the tightening sites (105, 105 ', 106) form at least one defined deformation length between them x, and for the veil (8, 107), the veil being transported (8 , 107) at the tightening sites (105, 105 ', 106) with different speeds.
3. Method according to claim 1 or 2, characterized in that the local position of the clamping sites (105, 105 ', 106) is varied to generate deformation lengths x, and of different magnitude.
Method according to claim 1, 2 or 3, characterized in that the nonwoven material (9, 108) delivered by the nonwoven material carrier (2, 103) with variable speeds is temporarily stored in a compensation device (6) and then fed with substantially constant speed to the consolidation device (4).
5. Profile forming device (1) for a multilayer nonwoven material (9, 108) that is laid by means of a nonwoven material holder (3, 102) from at least one veil (8, 107) powered by a veil producer (2, 103), characterized in that the profile forming device (1) has a deformation or stretching device (5, 104) to be arranged in the area between the veil producer (2, 103 ) and the non-woven material holder (3, 102), with at least two tightening sites (105, 105 ', 106) for the veil (8, 107) and with a controller (7) to which the nonwoven material holder (3, 102).
6. Profile forming device according to claim 5, characterized in that the deformation or stretching device (5, 104) is integrated in the non-woven material holder (3, 102) in the entrance area (33) thereof.
7. Profile forming device according to claim 5 or 6, characterized in that the deformation or stretching device (5, 104) and the non-woven material holder (3, 102) are controlled along the veil path to form the profile of the nonwoven material (9, 108).
8. Profile forming device according to one of claims 5 to 7, characterized in that the clamping sites (105, 105 ', 106) form between them at least one defined deformation length x, and for the veil (8, 107 ), the veil (8, 107) being transported at the tightening sites (105, 105 ', 106) with different speeds that increase in the direction (23) of the movement of the veil.
9. Profile forming device according to one of claims 5 to 8, characterized in that locally variable clamping sites (105, 105 ', 106) are provided to generate deformation lengths x, and of different magnitude.
10. Profile forming device according to one of claims 5 to 9, characterized in that one or more arrangements of driven tightening rollers (11, 12, 13) or 10 are placed on the clamping sites (105, 105 ', 106) or sections of tightening conveyor belt (120, 121, 122, 123) with tightening rollers (124, 125, 126, 127, 128, 129) and with controllable drives M5, M4 and M3.
11. Profile forming device according to one of claims 5 to 10, characterized in that the clamping rollers (124, 125, 126, 127, 128, 129) are mounted with the possibility of being approximated (27) in a controlled manner.
12. Profile forming device according to one of claims 5 to 11, characterized in that the veil driving drives M of the nonwoven material holder (3, 102) are coupled, through the controller (7, 131), to the M3 drive of the last arrangement of tightening rollers (13) or of the last section of tightening conveyor belt (112) at the tightening site (105) of the outlet side and can be varied together in their speeds.
13. Profile forming device according to one of claims 5 to 12, characterized in that the tightening site (106) of the inlet side is associated with the veil producer (2, 103), the veil (8, 107 being able to be transported) ) substantially with the delivery speed of the veil producer (2, 103), the clamping site (106) being arranged in the inlet area (33) on an adjustable tilt table (26) with a section of bent conveyor belt ( 123).
ES02778850T 2001-04-23 2002-04-23 Procedure for the profile of a non-fabriced material and profile formation device. Active ES2265058T3 (en)

Priority Applications (4)

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

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ES05022670T Active ES2302111T3 (en) 2001-04-23 2002-04-23 Procedure to profile a non-fabriced material and profile formation device.

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DE3245517C2 (en) * 1982-12-09 1985-11-14 Spinnbau Gmbh, 2820 Bremen, De
DE3462805D1 (en) * 1983-05-24 1987-04-30 Graziano & C Fond Off Riunite Drawing apparatus for textile fibre webs
CH674854A5 (en) * 1987-05-12 1990-07-31 Peyer Ag Siegfried
FR2678288B1 (en) * 1991-06-28 1994-11-18 Asselin Ets Process for producing a semi-finished non-woven product and semi-finished non-woven product.
DE9212215U1 (en) * 1992-09-10 1994-01-13 Autefa Maschinenfab Device for producing a nonwoven from fiber material
DE4304988C1 (en) * 1993-02-18 1994-04-07 Autefa Maschinenfab Wadding prodn. machinery - has mechanism to extend or condense the web of gauze
EP0816539A1 (en) * 1996-07-05 1998-01-07 Maschinenfabrik Rieter Ag Method and apparatus for production control in a carding machine
FR2770855B1 (en) * 1997-11-07 2000-01-28 Asselin Method and device for producing a textile tablecloth
FR2794475B1 (en) * 1999-06-01 2001-08-17 Asselin Method for controlling the profile of a nonwoven tablecloth and production facility therefor

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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
EP1381721A1 (en) 2004-01-21
DE50207108D1 (en) 2006-07-20
DE50214639D1 (en) 2010-10-14

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