EP1828453B1 - Non-woven web-laying device and method for guiding a nap - Google Patents

Abstract

A non-woven web laying device comprising several carriages (2,3) which can move in relation to each other and several laying belts (5,6) between which the nap (7) is taken up in an offset guiding area (27) and is guided at least partially on two sides or covered. The web-laying device (1) on the input side for the taking up of the nap comprises an area with a belt inlet (4) for the laying belts (5,6) with an obliquely downwardly inclined inlet path (9) and also comprises another area (41) between the main carriages (2,3). The laying belts (5,6) in the band inlet (4) run close to another with two belt sections (10,11) which are guided by means of deflection rollers (14,15,16,17,18), between which the nap (7) is guided on two sides or covered.The nap (7) in the guiding area (27) is essentially only guided on two sides in straight sections of the laying belts (5,6).

Description

The invention relates to a nonwoven layer and a method for guiding a pile having the features in the preamble of the method and apparatus main claim.

Such a fleece layer is from the EP 0 865 521 B1 known. Trained as a so-called sliver layer has two relatively movable main car and two guided in loops endless and circumferentially driven bands. The ribbons run parallel in an angled guide zone on the upper main car and between the main cars, picking up and guiding the pile between them. The guide zone has on the input side an oblique tape inlet of the laying belts on the upper main carriage. The brought up from two sides slide bands meet here and are merged to form an inlet slot. The pile fed on one band is deflected downwards in the band inlet. In the tape inlet, the two bands have two parallel side by side running and straight band sections that form the said inlet slot and record the pile between them by clamping and lead. The tape inlet has seven pulleys and two belt loops. The two pulleys at the lower end of the straight band sections are arranged obliquely one above the other and are closely adjacent to the Florklemmung. For a secure and distortion-free Legeband- and pile guide the outer tape is then lifted in a first belt loop and fed to another deflection roller again, which is also arranged to Florklemmung closely adjacent to the lower pulley of the inner florführenden laying belt. Said outer laying belt is then deflected again in a second recurring belt loop and again in parallel position brought to the inner band. The pile is thereby also guided and clamped on both sides in the deflection regions of the laying belts and between closely adjacent deflection rollers.

The FR-2 553 102 shows another web laying with a stationary tape inlet, in which the laying belts are brought together on stationary pulleys and guided in parallel position to the upper main car. At the main car, the belt sections come apart again and are deflected vertically downwards, whereby the horizontally fed Flor undergoes a deflection by 90 ° and is guided only on one side. In practice, it has been found that such a tape feed can only be used for limited feeding speeds of the pile and working speeds of the web laying machine. If the feed rates become too high, tearing may occur in the very light and highly sensitive web.

Other developments, eg according to the EP-A-0 517 568 tend to create a very wide and wide-opening funnel before the tape inlet. Here, the Flor feeding ribbon has an obliquely sloping band section, on the Flor, however, is transported open. At the lower end of the tape section, the second tape comes closer, causing the Flor only at this point in the tape inlet between the two bands and taken only at the band deflection and on a pressure line between the pulleys on both sides of the levers, guided and clamped.

The WO 91/156018 shows a further variant of the tape inlet, in which both bands are guided on the main car via two large guide rollers. This also forms a further inlet funnel for on the one Ribbon fed pile. The two large guide rollers are arranged horizontally next to each other approximately at the same height, whereby the pile is received and guided on both sides only approximately at midpoint height of the two rollers by the here close zusammenammentretenden slide bands. Before and after, the bands are separated by the roll shape. Although these two aforementioned nonwoven layers are designed for higher feed rates of the pile and processing speeds of the nonwoven layer. However, the only point or line merger of the bands and the correspondingly short guide length nevertheless results speed limiting problems.

From the DE-A 19 27 863 and the DE-A 24 29 106 Furthermore, nonwovens with stationarily arranged belt inlets are known, in which the laying belts are guided over stationarily arranged deflecting rollers. Both fleece layers show horizontal belt inlets.

In the DE-A 24 29 106 The two bands form a horizontal inlet slot, which adjoins the conveyor belt coming from the card. At the top main car, the bands are detached from each other, whereby the pile is deflected by 90 ° down and transported and guided only on the one underlying laying belt. In the DE-A 19 27 863 The pile is fed via a stationary upstream conveyor belt and placed in front of the tape entry in free fall on an underlying somewhat oblique laying belt section. The second band is placed at some distance behind this point. The inlet slot arises only very late at the deflection in the following horizontal inlet path of the tape inlet. Both stationary infeed embodiments severely limit the speeds of the pile infeed and the crosslapper.

It is an object of the present invention, a nonwoven fabric with an improved tape entry and a better Florführungsverfahren show.

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

The claimed nonwoven with the oblique tape inlet and the inlet section has the advantage of a better and gentler pile guide in the area of the superstructure. With the nonwoven and the Florführungsverfahren a clamping of the pile is avoided at the deflection of the tape inlet. A two-sided guidance and clamping of the pile takes place only in those belt areas in which the laying belts run in close proximity and thereby extend substantially in a straight line. This improves the pile guide.

The tape inlet can have a forward or a backward inlet path. The backward variant offers the advantage of a softer Florumlenkung at the lower deflection. In addition, in this variant, the superstructure may have a more compact design.

The tape entry also has the advantage that it manages with fewer pulleys. This reduces the construction costs and the size of the superstructure.

In the subclaims further advantageous embodiments of the invention are given.

Figur 1:

eine Übersichtsdarstellung eines Vlieslegers mit einem bewegten Bandeinlauf am Oberwagen,

Figur 2:

eine vergrößerte und detaillierte Detailansicht einer ersten Variante des Bandeinlaufs von Fig. 1 mit Ober- und Legewagen,

Figur 3:

eine weiter vergrößerte Detaildarstellung des Bandeinlaufs von Fig. 2 am Oberwagen,

Figur 4:

eine vergrößerte und detaillierte Detailansicht einer zweiten Variante des Bandeinlaufs von Fig. 1 mit Ober- und Legewagen und

Figur 5:

eine weiter vergrößerte Detaildarstellung des Bandeinlaufs von Fig. 4 am Oberwagen.

The invention is illustrated by way of example and schematically in the drawings. In detail show:

FIG. 1:

an overview of a nonwoven with a moving tape inlet on the superstructure,

FIG. 2:

an enlarged and detailed detailed view of a first variant of the tape inlet of Fig. 1 with upper and laying carriages,

FIG. 3:

a further enlarged detail of the tape inlet of Fig. 2 on the superstructure,

FIG. 4:

an enlarged and detailed detailed view of a second variant of the tape inlet of Fig. 1 with upper and Lewoagen and

FIG. 5:

a further enlarged detail of the tape inlet of Fig. 4 on the superstructure.

FIG. 1 shows in the overview a nonwoven layer (1), which is designed as a so-called stripper. He has in a housing or frame (30) an upper main car (2) and a lower main car (3). The nonwoven layer (1) can also have one or more auxiliary carriages or tensioning carriages (31, 32). About the carts (2,3,31,32) are guided by means of suitable deflection rollers or guide rollers two endless belts (5,6). At least the two main cars (2, 3) are supported by running gears (20) with rollers (29) on preferably common running rails (28) and are reciprocated by suitable drives and move relative to one another. The two levers (5,6) are also driven by means of suitable controllable and controllable drives circumferentially. The one ribbon (5) is below as a feed belt and the other ribbon (6) referred to as counter-band.

That produced by a pile producer (not shown), e.g. A carding machine or a carding machine, produced Faserflor (7) passes through a separate or by a portion of the feed belt (5) formed feed belt (25) in the nonwoven layer (1). It is guided via a feed line (26) in the inlet direction (24) to the upper main carriage (2) and to an oblique belt inlet (4) arranged there. The pile (7) passes on the oblique tape inlet (4) described in more detail below between the two laying belts (5, 6). Along the feed path (26), the batt (7) can be made e.g. in the manner shown to be transported lying open on the conveyor belt (5). Alternatively, it can be covered by the counter belt (6) guided in front of the feed belt (25) or another separate belt or the like.

The laying belts (5, 6) are guided on the uppercarriage (2) and in the following area (41) between the two main carriages (2, 3) in an angled belt loop close together and essentially parallel to one another. If necessary, take the pile (7) with light pressure between them, transport and guide it. This angled loop area is referred to as a guide zone (27). The guide zone (27) is divided into the band inlet (4) and the subsequent zone area (41) between the main carriage (2,3). The zone area (41) can extend horizontally or obliquely and connects the main cars (2, 3) in a straight line and directly.

At the lower main carriage (3), the so-called laying carriage, the pile (7) emerges downwards at the pile outlet (37) and is deposited on a transverse endless draw-off strip (8) to form a multilayer nonwoven (23). The laying carriage (3) moves back and forth over the draw-off belt (8), whereby the pile (8) in several layers one above the other transversely and in the Zigzag is deposited to the direction of delivery. The pile (7) is padded like scales.

The laying belts (5, 6) separate again at the laying carriage (3) at the web exit (37) and are moved outwards in spatially separated loop sections and are conveyed via e.g. fixed frame deflection rollers (42,43) and possibly existing tensioning carriage or auxiliary carriage (31,32) returned to the band inlet (4) again. The deflection rollers (42) are provided for the feed belt (5) and the deflection rollers (43) for the counter belt (6). The laying carriage (3) also has a guide roller (33) for the feed belt (5), which, after being deflected twice over the deflection rollers (34, 35) and via further frame-fixed deflection rollers (42) and forming the supply belt (25) and the Feed line (26) back to the superstructure (2) is returned. The laying belt (6) is deflected by means of a deflection roller (36) and likewise returned to the superstructure (2) via deflection rollers (43) fixed to the frame. The Floraustritt (37) is formed between the pulleys (35,36).

Following the Floraustritt (37), the guide belts (5,6) each have a laterally outwardly directed band portion (44,45), which is aligned substantially parallel to the car traveling direction and the discharge belt (8). The band sections (44, 45) each extend from the reciprocating deflection rollers (35, 36) to the adjacent stationary deflection rollers (42, 43). They can rest on the deposited fleece (23) at a small distance above or with a touch contact. They cover the fleece (23) in all laying carriage positions as a cover against air vortices and other disturbing environmental influences. The belt circulation speeds and the laying carriage speed are generally in the range between the reversal points and possibly with the exception of the local braking and acceleration phases and with the exception of a possibly conscious delay in the amount essentially the same size. The belt section (44, 45) following each in the direction of carriage is therefore placed or approximated on the pile area which has just been stored during the journey in an unwinding motion and has no or only a small speed component in the vehicle travel direction.

For the laying belt (5) a tensioning carriage or auxiliary carriage (31) is provided which is controlled in dependence on the movement of the upper carriage (2). For the laying belt (6) a tensioning carriage or auxiliary carriage (32) is provided, which is controlled in dependence of the movement of the laying carriage (3). The movement of the tensioning carriage (31,32) is positively controlled by means of toothed belt.

For the structural design and function of the nonwoven layer (1), there are various possibilities, as they are known for example from the cited in the introduction to the prior art. The two main cars (2,3) can thereby to form a short passage in the same direction as in the EP-0 865 521 B1 , of the DE-A-19 27 863 or the EP-A-0 517 568 or in opposite directions with stationary band deflection as in the FR-A-2 553 102 or the WO 91/156018 move. In order to influence the pile deposit on the draw-off belt (8), internal stores can be formed by means of the auxiliary or tensioning carriages (31, 32) which avoid, for example, edge thickening of the fleece (23). It can also be used in the pile storage with delay to set a particular profile in the thickness or density of the web (23).

FIG. 2 and 3 illustrate a first variant of the tape inlet (4) of the webbinder (1) of FIG. 1 in detail. FIG. 4 and 5 show a second variant of the band inlet (4).

In both variants, the pile (7) in the guiding zone (27) is guided on both sides essentially only between straight sections of the laying belts (5, 6) and, if necessary, clamped. This applies both to the one zone area at the strip inlet (4) and to the other zone area (41) between the two main cars (2, 3).

In both variants meet at the tape inlet (4) behind the laying carriage (3) again separately guided bands (5.6) together, run in the tape inlet (4) close to each other and take the supplied from the outside pile (7) between them. In the embodiments shown, the one ribbon (5) at the same time serves as a pile feed or feed belt (25) and is led out accordingly from the housing (30) of the nonwoven layer (1). The pile (7) is here e.g. open on the laying belt (5) and is transported by this to the tape inlet (4).

At the latest at the band inlet (4), the two bands (5.6) are brought together to form a narrow inlet slot (12) via a pair of upper guide rollers (14,16). To the guide rollers (14, 16) adjoins the inlet section (9), of two substantially straight extending band sections (10,11) of the laying belts (5,6) to a further deflection (15,17) and a local outlet slot (19) is formed. The inlet section (9) is that band area in which the band sections (10,11) between the inlet and outlet slots (12,19) in such close proximity, and they receive the pile (7) between him and cover him or lead him on both sides.

The inlet slot (12) may have a fixed or an adjustable width, which may be adapted to the respective requirements of the pile material, if necessary. It may be slightly larger than the pile thickness, so that the loose pile (7) initially without compression or compression can be included. The width may alternatively be equal to or smaller than the edge thickness and, if appropriate, already lead to a clamping when the pile (7) enters the strip inlet (4).

The band sections (10, 11) run essentially parallel in the inlet section (9). This can be strictly parallel. The spacing of the band sections (10, 11) may alternatively decrease over the run length. As a result, an inlet section (9) tapering in a funnel shape at an acute angle can be formed, in which the pile (7) is gradually compressed and clamped before it reaches the outlet slot (19) at the lower deflection (15, 17). In this variant, e.g. the width of the inlet slot (12) are set larger than the edge thickness. But it is also possible to clamp at a small slot width the pile (7) immediately upon entry into the band inlet (4) and to increase the compression over the length of the inlet section (9) even further. The choice of the suitable setting depends on the type of pile material and, if appropriate, also on the pile feed rate and / or other parameters.

The two band sections (10, 11) each extend between an upper deflection roller (14, 16) and a lower deflection roller (15, 17), the lower deflection rollers (15, 17) having their parallel axes (38, 39) substantially are arranged side by side at the same height. Preferably, the altitude is the same. Alternatively, the altitude may differ slightly, wherein the connecting line of the axes (38,39) is aligned at an angle deviating from 90 ° to the inlet path (9).

The band sections (10,11) have in the embodiments shown a direct and straight course between the upper and lower Umlenkkrollen (14:15 and 16:17). Alternatively, the band sections (10, 11) can have a slightly curved course.

The inlet section (9) or the band sections (10, 11) are inclined at an angle α or α 'against the horizontal or the feed or inlet direction (24) at an angle downwards. This angle α or α 'is in the two variants of FIG. 2 . 3 and 4 . 5 varies in size and refers in each case to the band deflection of the laying belt (5) on the upper deflection roller (14). The preferably horizontal feed section (26) of the laying belt (5) is deflected into the inclined band section (10).

In the first variant of FIG. 2 and 3 the band portions (10,11) in the inlet direction (24) of the feed belt (5) inclined obliquely downwards. The angle of inclination α of the band sections (10, 11) against the inlet direction (24) or the feed section (26) can be between 90 ° and 160 °. Preferably, the inclination angle α is greater than 90 ° and is between 100 ° and 130 °. In the embodiment shown, it is about 120 °.

In the second variant of FIG. 4 and 5 are the band sections (10,11) inclined against the inlet direction (24) of the feed belt (5) obliquely downwards. The inclination angle α 'of the band sections (10, 11) against the inlet direction (24) or the feed section (26) can be between 90 ° and 30 °. Preferably, the inclination angle α 'is less than 90 ° and is between 80 ° and 50 °. In the embodiment shown, it is about 65 °.

At the band inlet (4) there is a total deflection of the florführenden laying band (5) of 180 °. In the first variant FIG. 2 and 3 the deflection with the inclination angle α at the upper deflection roller (14) is weaker and with the complementary angle β at the lower pulley (15) stronger. In the second variant of FIG. 4 and 5 the deflection ratios are reversed with a stronger deflection α 'above and a weaker deflection β' below.

At the lower end of the inlet section (9), the two guide belts (5, 6) are guided over lower deflection rollers (15, 17) and further deflected in a preferably horizontal direction to the zone region (41) and to the laying carriage (3). The pulleys (15,17) may have substantially the same diameter. In the inlet section (9) of the pile (7) before the lower stronger deflection (15,17) over a longer straight line already safely out and covered.

The two lower pulleys (15,17) are mutually and laterally distanced. Their distance on the connecting line of their axes (38,39) is significantly greater than the thickness of the pile (7) and the two bands (5,6). The inlet section (9) with the adjacent parallel guide of the band sections (10, 11) extends in both variants to the upper region of the deflection rollers (15, 17). It ends above the axes (38,39) at the beginning of the deflection of one of the bands (5,6). In the first variant of FIG. 2 . 3 This is the deflection beginning of the laying belt (5) on the deflection roller (15). In the second variant of FIG. 4 . 5 ends the inlet section (9) at the beginning of the deflection of the other laying belt (6) on the deflection roller (17).

At the lower end of the inlet section (9), the strip sections (10,11) between the two lower guide rollers (15,17) apart and form between them the downwardly opening outlet slot (19), in which the two-sided pile guide or Florklemmung is repealed , The parallel area or Florklemmbereich the Belt sections (10, 11) ends in both variants above the axles (38, 39) of the deflection rollers (15, 17).

Between the two lower pulleys (15,17) there is no pressure line for the pile (7), as they are in the EP-0 517 568 A1 and the EP-0 865 521 B1 is provided.

In the first variant of FIG. 2 and 3 with the forwardly inclined inlet section (9), the outlet slot (19) begins at the tangential contact point of the florführenden band section (10) on the jacket of the lower deflection roller (15). The pile (7) is continued by the laying belt (5) following this point in the same arc with a complementary angle β of eg 60 ° and deflected. On the only one-sided run Flor (7) act centrifugal forces from the deflection and its Floreigengewicht.

In the second variant of FIG. 4 and 5 with the backward inclined inlet section (9) of the outlet slot (19) at the tangential contact point of the other band portion (11) on the mantle of its lower guide roller (17) begins. The pile (7) is continued by a band (5) or band portion (19) following this point, first a bit straight and then in the arc with a complementary angle β 'of, for example, 115 ° and deflected. On the one-sided Flor (7) initially act only Floreigengewicht and then additional centrifugal forces from the deflection.

The band inlet (4) has a total of five deflection rollers (14,15,16,17,18). The florführende laying belt or feed belt (5) is guided over two preferably on the upper main car (2) relatively stationary deflection rollers (14,15). The deflection rollers (14,15) are in the two variants according to the slope of the inlet section (9) in height and laterally forward or distanced backwards.

The other laying belt (6) is guided over three deflection rollers (16, 17, 18). The upper deflection roller (16) of the laying belt (6) is in both variants e.g. arranged above the opposite guide roller (14).

The height difference between the pulleys (14,16) can be considerable. Preferably, the axis of rotation (46) of the deflection roller (16) lies above the uppermost circumferential point or zenith (47) of the deflection roller (14). The essentially straight band portion (11) of the opposite band (6) thereby extends at least to the zenith (47) and preferably beyond and forms a straight gusset or funnel wall. The inlet slot (12) can also be kept narrow or narrow. Both are favorable for trouble-free pile guide in the inlet and deflection, especially at high speeds. In addition, this arrangement is favorable for a gain of the first deflection and a reduction of the inclination angle α, α 'in favor of an increase of β, β'. The steeper the belt sections (11, 12) run, the more compact the superstructure (2) builds.

In the embodiment of FIG. 2 and 3 is the lateral and vertical distance of the deflection roller (16) to the deflection roller (14) of the flour guiding laying belt (5) comparatively small, resulting in a short inlet funnel (12). The inlet section (9) is relatively long, the straight strip sections (10, 11) running closely over almost their entire length and without any great length offset. The slightly longer band section (11) protrudes slightly at both ends and approximately equidistant over the band section (10).

In the other embodiment of FIG. 4 and 5 the lateral and vertical spacing of the deflection rollers (14, 16) can be greater, wherein the deflection roller (16) lies at a clear distance above the zenith (47) of the deflection roller (14), resulting in a longer and further opening inlet funnel (12). leads. In addition, the band sections (10, 11) have a larger and asymmetrical length offset and form a shorter inlet section (9).

Subsequent to the lower deflection roller (17), the laying belt (6) has a recurring belt loop (13), in which it is guided over the third deflection roller (18) and is deflected in the direction of the laying carriage (3). The pulleys (15,17,18) are arranged with their axes (38,39,40) on a common and preferably horizontal line. The diameter of the deflection roller (18) may be larger than the diameter of the lower deflection rollers (15, 17). After the inlet section (9) thereby both guide strips (5,6) are deflected in parallel position and in a horizontal to the laying carriage (3) extending section. In this subsequent horizontal section, the two bands (5,6) are again so close together that they lead the pile (7) between them on both sides.

In the area below the outlet slot (19), support means (21), e.g. a freely rotatable support roller, be arranged for the laying belt (6). The support device (21) is preferably located approximately in the middle between the adjacent deflection rollers (15,17). The position can alternatively be moved laterally to below these pulleys. The support roller (21) affects the distance of the bands (5.6).

The tape inlet (4) and the inlet section (9) are adjustable. For example, the deflection rollers (16,17,18) and the support roller (21) with suitable Delivery facilities (22) are changed in their position. Preferably, the feed direction in the area of the inlet slot (12) located deflection rollers (16,17) is substantially perpendicular to the direction of the inlet path (9). Thereby, the width of the inlet slot (12) and possibly also the funnel-shaped constriction of the inlet section (9) can be changed. The bands (5,6) can be permeable to air, so that compressed by the increasing constriction of the inlet section (9) of the Flor and thereby the air is pressed out.

For the tape guide of the opposing belt (6), it is favorable in view of the aforementioned role adjustability and other reasons when the counter-belt (6) from the upper deflection roller (16) directly to the adjacent stationary deflection roller (43) at the edge of the frame (3) to be led. This also favors an open pile guide on the feed line (26). In the embodiment shown of FIG. 1 the stationary deflection rollers (42) of the feed belt (5) are arranged on one side of the frame next to the draw-off belt (8) and the stationary deflection rollers (43) of the opposite belt (6) on the other side of the frame next to the draw-off belt (8).

The deflection roller (18) can be adjusted horizontally and can thereby be approximated or removed relative to the deflection roller (17) of the laying belt (6) for changing the belt loop (13).

The support roller (21) is vertically adjustable and can thus also be approximated or removed relative to the deflection rollers (15,17). With the support roller (21), the pile guide at the lower end of the outlet slot (19) and at the entrance to the zone area (41) with the parallel guide belts (5,6) is influenced following the deflection roller (15).

Modifications of the embodiments shown are possible in various ways. In the variant of FIG. 4 and 5 the upper deflection roller (16) of the laying belt (6) can be arranged lower, resulting in a superstructure (2) with a lower overall height. The overall length can be compared to the first variant of FIG. 2 and 3 be shortened. Further, the number of pulleys (14,15,16,17,18) and their orientation may vary. In particular, the deflection rollers (15, 17) can have a certain height offset. The roller axes (38,39,40) must not lie on a horizontal line, but may have an oblique connecting line, for example, the zone portion of the pressure zone (27) between the two main cars (2,3) also extends correspondingly oblique. Furthermore, storage and drives of the main and auxiliary cars (2,3,31,32) vary.

LIST OF REFERENCE NUMBERS

1

lapper

2

Main car, superstructure

3

Main car, laying carriage

4

strip entry

5

Tape, feeder belt

6

Legeband, Gegenband

7

pile

8th

off belt

9

inlet section

10

band section

11

band section

12

Inlet slot, inlet funnel

13

tape loop

14

Pulley, feed belt

15

Pulley, feed belt

16

Pulleys, counter belt

17

Deflection pulley, counter belt

18

Deflection pulley, counter belt

19

outlet slot

20

landing gear

21

Supporting device, support roller

22

advancing

23

fleece

24

direction

25

infeed

26

feed section

27

guide zone

28

running rail

29

caster

30

frame

31

Tensioning wagon, auxiliary wagon

32

Tensioning wagon, auxiliary wagon

33

Pulley, feed belt

34

Pulley, feed belt

35

Pulley, feed belt

36

Deflection pulley Counter belt

37

Floraustritt Legewagen

38

roller axis

39

roller axis

40

roller axis

41

zone area

42

Deflection pulley feed belt

43

Deflection pulley Counter belt

44

Tape section, cover strip feed belt

45

Band section, cover band counterband

46

top perimeter point, zenith

47

axis of rotation

Claims (23)

1. Nonwoven laying machine with a plurality of carriages (2, 3) moveable relative to one another and with a plurality of laying belts (5, 6), between which the web (7) is received in an angled guide zone (27) and is at least in regions guided or covered on both sides, the nonwoven laying machine (1) having on the entry side for web reception a zonal region with a belt run-in (4) of the laying belts (5, 6) with a run-in stage (9) inclined obliquely downwards and, between the main carriages (2, 3), a further zonal region (41), and the laying belts (5, 6) running near to one another in the belt run-in (4) with two belt portions (10, 11) which are guided via deflective rollers (14, 15, 16, 17, 18) and between which the web (7) is guided or covered on both sides, characterized in that the web (7) is guided on both sides in the guide zone (27) essentially only in straight-running portions of the laying belts (5, 6).
2. Nonwoven laying machine according to Claim 1, characterized in that the belt portions (10, 11) extend in each case between upper and lower deflecting rollers (14, 15 and 16, 17), the lower deflecting rollers (15, 17) being arranged with their axes (38, 39) essentially at the same height.
3. Nonwoven laying machine according to Claim 1 or 2, characterized in that the run-in stage (9) with the adjacent belt portions (10, 11) ends in the upper region of the deflecting rollers (15, 17) before the axes (38, 39) of the latter.
4. Nonwoven laying machine according to Claims 1, 2, or 3, characterized in that the belt portions (10, 11) run essentially parallel between the upper and lower deflecting rollers (14, 15, and 16, 17).
5. Nonwoven laying machine according to one of the preceding claims, characterized in that the lower deflecting rollers (15, 17) are spaced apart laterally and, at the same time cancelling web guidance or web nipping on both sides, form between them an opening run-out slot (19).
6. Nonwoven laying machine according to one of the preceding claims, characterized in that the belt portions (10, 11) are inclined obliquely downwards in the run-in direction (24) of the feed belt (5).
7. Nonwoven laying machine according to Claim 6, characterized in that the belt portions (10, 11) have an inclination angle a relative to the run-in direction (24) of between 90° and 160°, preferably of between 100° and 130°.
8. Nonwoven laying machine according to one of Claims 1 to 5, characterized in that the belt portions (10, 11) are inclined obliquely downwards relative to the run-in direction (24) of the feed belt (5).
9. Nonwoven laying machine according to Claim 8, characterized in that the belt portions (10, 11) have an inclination angle a' relative to the run-in direction (24) of between 90° and 30°, preferably of between 80° and 50°.
10. Nonwoven laying machine according to one of the preceding claims, characterized in that the belt run-in (4) has five deflecting rollers (14, 15, 16, 17, 18).
11. Nonwoven laying machine according to one of the preceding claims, characterized in that one laying belt (5) feeding the web (7) is guided via two deflecting rollers (14, 15).
12. Nonwoven laying machine according to one of the preceding claims, characterized in that the other laying belt (6) is guided via three deflecting rollers (16, 17, 18).
13. Nonwoven laying machine according to one of the preceding claims, characterized in that the other laying belt (6) is guided after the lower deflecting roller (16) in a recurring belt loop (13) via two deflecting rollers (17, 18).
14. Nonwoven laying machine according to one of the preceding claims, characterized in that the upper deflecting roller (16) of the other laying belt (6) is arranged above the deflecting roller (14) of the feed belt (5).
15. Nonwoven laying machine according to Claim 14, characterized in that the axis of rotation (46) of the upper deflecting roller (16) of the other laying belt (6) is arranged above the zenith (47) of the deflecting roller (14) of the feed belt (5).
16. Nonwoven laying machine according to one of the preceding claims, characterized in that a run-in slot (12) is formed between the upper deflecting rollers (14, 16).
17. Nonwoven laying machine according to one of the preceding claims, characterized in that a supporting device (21), preferably a supporting roller, for the other laying belt (6) is arranged in the region of the run-out slot (19).
18. Nonwoven laying machine according to one of the preceding claims, characterized in that the supporting device (21) has an advancing device (22).
19. Nonwoven laying machine according to one of the preceding claims, characterized in that one or more deflecting rollers (14, 15, 16, 17, 18) have an advancing device (22).
20. Nonwoven laying machine according to one of the preceding claims, characterized in that the carriages (2, 3) have travel mechanisms (20) with running rollers (29) and are mounted on common travel rails (28).
21. Method for guiding a web (7) on a nonwoven laying machine (1) with a plurality of carriages (2, 3) moveable relative to one another and with a plurality of laying belts (5, 6), between which the web (7) is received in an angled guide zone (27) and is at least in regions guided or covered on both sides, the web (7) being received on the entry side in a zonal region with a belt run-in (4) of the laying belts (5, 6) with a run-in stage (9) inclined obliquely downwards and, in a further zonal region (41), being guided between the main carriages (2, 3), and the laying belts (5, 6) running near to one another in the belt run-in (4) with two belt portions (10, 11) which are guided via deflecting rollers (14, 15, 16, 17, 18) and between which the web (7) is guided or covered on both sides, characterized in that the web (7) is guided on both sides in the guide zone (27) essentially only in straight-running portions of the laying belts (5, 6).
22. Method according to Claim 21, characterized in that the web guidance or web nipping on both sides is cancelled at the lower deflecting rollers (15, 17), and the web (7) runs into a run-out slot (19) opening between the deflecting rollers (15, 17).
23. Method according to Claim 21 or 22, characterized in that the web (7) is deflected at the belt run-in (4) relative to the running direction (24) in the feed stage (26).

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