EP3066239A2

EP3066239A2 - Nonwoven laying apparatus, and nonwoven laying method

Info

Publication number: EP3066239A2
Application number: EP14805195.6A
Authority: EP
Inventors: Andreas Meier
Original assignee: Autefa Solutions Germany GmbH
Current assignee: Autefa Solutions Germany GmbH
Priority date: 2013-11-05
Filing date: 2014-11-05
Publication date: 2016-09-14
Anticipated expiration: 2034-11-05
Also published as: DE202013104946U1; US20160298274A1; WO2015067627A3; EP3066239B1; CN105658853A; WO2015067627A2; CN105658853B; US10337126B2

Abstract

The invention relates to a nonwoven laying apparatus (3) and a nonwoven laying method. The nonwoven laying apparatus (3) comprises a laying device (7) that folds a delivered fiber web (4) and forms a multilayer nonwoven fabric (14) on the discharge belt (15) of a discharging conveyor (13) that runs transversely or at an angle to the feeding direction (26). According to the invention, the travel profile of the discharge belt (15) is set in such a way as to vary in the discharge direction in the vertically projected zone below the web outlet (12) of the laying device.

Description

DESCRIPTION

The invention relates to a nonwoven layer and a nonwoven layer

Nonwoven laying method with the features in the preamble of the method and device main claim.

From the practice are nonwoven layers in the design of

Kreuzlegern known that fold with a laying device fed a batt and put on a transverse or oblique to the feed direction extending discharge path of a discharge conveyor, wherein a multilayer web is formed. During the pile storage, the discharge conveyor moves so that the various piles in the nonwoven form zigzagging ply edges.

It is an object of the present invention to provide a

show improved nonwoven technology.

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

The claimed nonwoven laying technique, i. the nonwoven layer and the nonwoven laying process have the advantage of a

improved laying quality and fleece quality. In the

Pile storage on the discharge conveyor can minimize or avoid interference effects on the delicate batt. These increases in quality are particularly noticeable in the case of increased pile speeds when entering the fleece layer and when depositing on the discharge conveyor. This pile-up speed may be 200m / min or more. On the other hand, the

Dispensing speed of the discharge conveyor can be increased, for example, to 40 m / min or more. This is particularly advantageous when using a downstream fast Device for further processing the fleece,

in particular a water jet hardening device (so-called spunlace). Overall, this can be the

Speed level of the webbinder and the fiber plant and thus also the performance and the

Profitability can be significantly increased. The

Fleece laying technology makes it possible to achieve such speed increases without sacrificing quality in lay quality.

With the claimed nonwoven laying technique, in particular, vortices in the piles and the fleece and

Pumping effects by the movements of the laying device, in particular a main carriage with levers, minimized or avoided. This manifests itself in a particularly high quality of the ply edges or marginal edges of the

Pile layers in the fleece. Turnover or swirling of these sensitive edge regions of the pile layers can be prevented.

In the subclaims are further advantageous

Embodiments of the invention indicated.

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

a fleece laying with a laying device and a discharge conveyor in front view, a plan view of the fleece laying according to arrow II of Figure 2 and a side view of the discharge conveyor according to arrow III of Figure 1.

The invention relates to a nonwoven layer (3) and a

Web-laying process. The invention further relates to a fiber plant (1) with such a nonwoven layer (3).

The nonwoven layer (3) is preferably as a crosslapper

educated. He takes one of a pile fabric (2) by means of a feeder (5) supplied Felt

(4) and folds over it to form a multi-ply web (14) with the web (14) on the discharge path

(15) a discharge conveyor (13) stored and transported away from this. The feeding direction (26) of

Fibrous webs (4) and the discharge direction (27) of the web

(14) and the discharge conveyor (13) can be aligned transversely or obliquely to each other in plan view. The discharge conveyor (13) moves during the pile storage in the discharge direction (27), whereby the pile layers are stored and padded in a zigzag path according to FIG. They have oblique edges or so-called.

Layer edges (29). The pile storage is controlled in such a way that the leading edge in the discharge direction (29) comes to lie directly above a rear edge of the sheet (29) of a previously deposited pile layer. This is an exact Endeavored to reach a position.

The nonwoven applicator (3) has a laying device (7) with which the supplied fiber web (4) is deposited on the transversely or obliquely extending discharge conveyor (13). Here, the laying device (7) has an over the

Discharge conveyor (13) in the feed direction (26) movable back and forth Florauslass (12), from which the batt (4) down to the discharge path (15) of the discharge conveyor (13) and the already stored (n) pile layer (n ) exit .

The batt (4) may consist of a fibrous web or of several, superimposed fibrous webs. The fibers are preferably synthetic fibers made of plastics, but may alternatively be natural fibers or fiber mixtures of synthetic or natural fibers. The fibers may be of no or predominant fiber orientation in the

Fibrous web (4) are present. The batt (4) can as

Wirrflor or be designed as a kind of cotton wool. It may alternatively consist of several, juxtaposed fiber strands.

The deposited fleece (14) has two or more pile layers. The fleece thickness depends on the number of layers. The nonwoven layer (3) may alternatively be provided from another side, e.g. from the rear side of the discharge conveyor, a further fibrous web is fed, on which the aforementioned fibrous web (4) is deposited and padded.

The nonwoven or stacker (3) and its

Laying device (7) can be designed in different ways. In the drawings, a stripper is shown, the laying device (7) of two

superimposed main carriage (8,9) and of two levers (10,11) is formed, each in an endless loop on pulleys on the main car (8,9) and pulleys on the machine frame (not

shown) are guided. The main cars (8,9) and the levers (10,11) are with controlled drives

Mistake .

The laying tapes (10,11) take the supplied batt (4) on the upper main car (8) or superstructure, between him and lead him to both sides of investment and in the

Clamping to the lower main car (9) or laying carriage. At its Florauslass (12), the laying belts (10,11) on the local deflection rollers again apart and are doing in opposite directions across the

Abführförderer (13) and the fleece (14) spread, covering the fleece (14) upwards. In Figure 3, the Florauslass (12) is symbolized by a pulley in side view.

The main cars (8,9) move over the discharge conveyor (13) and transversely or obliquely to the discharge direction (27) back and forth. The laying carriage (9) with the Florauslass (12) brakes each case at the end of its trajectory and on the local edge of the discharge conveyor (13), stops and accelerates again in the opposite direction. FIG. 1 shows both end positions of the Florauslasses (12).

The nonwoven layer (3) can also have a tensioning device for the laying belts (10, 11) with one or more auxiliary carriages

(not shown), which optionally with a

Main cars are coupled. By means of the clamping device can different loop lengths of the bands

(10,11) are recorded and kept under tension, which by a movement decoupling of the main car

(8,9) can arise. The nonwoven layer (3) may be formed as a co-rotating or opposite Leger, in which the main car (8.9) each in the same

Move direction or in opposite direction. The carriage and belt arrangement of such preferred co-rotating nonwoven layer (3) may be formed, for example, according to EP 1 828 453 AI.

The discharge conveyor (13) is shown in FIG

Embodiment designed as a belt conveyor and has an endless, circulating discharge belt, which over several, e.g. guided two pulleys (17,18) and driven in rotation. The discharge belt (13) may be formed as a slat belt, as a wire belt or in any other suitable manner. The discharge path (15) is of the

Upper strand of the discharge belt (13) formed. The lower run (16) may have a slack. The discharge belt (13) is driven in rotation by a drive, not shown, controlled, the upper strand (15) moves in the discharge direction (27). The conveying speed can be adjusted to the travel speed of the Florauslasses (12)

be proportionally adjusted.

In another alternative embodiment, the discharge conveyor (13) may be designed as a roller conveyor. The discharge path (15) is then e.g. formed by a support surface and a plurality of arranged thereon and controlled driven rollers. Otherwise, the discharge conveyor (13) and its discharge path (15) can be any other

have constructive training.

The Florauslass (12) has a in the discharge direction (27) seen width corresponding to the web width of the batt (4) or the carding width. The discharge conveyor (13) may have a beyond the front edge of the Florauslasses (12) extending beyond.

As Figure 3 illustrates, the discharge conveyor (13) has a device (19) for adjusting a contour contour of the discharge path (15) in the vertically projected area under the Florauslass (12) of the laying device (7), said course contour varies in discharge direction (27) , By the varying course contour result in different gap widths (a, b) between Florauslass (12) and discharge path (15). The discharge path (15) may have a generally obliquely downward slope. For this purpose, for example, in the discharge belt (13) shown, the deflection rollers (17,18) are arranged at different heights. The back

Deflection pulley (17) is located at the rear edge of the Florauslasses (12) and is above the front

Deflection pulley (18) arranged. The front deflection roller (18) can be equipped with an adjusting means (28) for changing its altitude and possibly also its horizontal lateral position. The rear deflection roller (17) can also have such a one- or two-axis adjusting means (28).

The course contour of the discharge path (15) can in the area below the Florauslass (12) by means of an adjusting device (23) in one or more adjusting axes (24,25)

set and possibly also be adjusted again. The one adjustment axis (24) is e.g. vertically aligned and the other adjusting axis (25) oriented horizontally, wherein it extends in the discharge direction (27). The

constructive design and arrangement of the adjusting device (23) depends on the structural design of the discharge conveyor (13) and its discharge path (15).

The course contour of the discharge path (15) has in the area below the Florauslass (12) on a bending or discontinuity (20), at which the contour gradually or

changes abruptly. The bending or discontinuity (20) is preferably located in the middle region of the width of the Florauslasses (12) in the discharge direction (27). The position of a bending or discontinuity (20) of the course contour of the discharge path (15) by means of the adjusting device (23) in one or more axes (24,25), in particular vertically and / or horizontal, adjusted and possibly adjusted.

Furthermore, according to FIG. 3, one or more support rollers (31) can be arranged below the discharge track (15). They serve to fleece support and reduce or avoid a fleece sag. They can also be adjustable in one or more axes, in particular vertically and horizontally. Their position in the discharge direction (27) can depend on the number of layers of the fleece (14) and the layer width in the discharge direction (27).

Further, in another, not shown

Embodiment of the discharge conveyor, the deflection roller (17) to be rearwardly from the Pro ektionsbereich the Florauslasses (12) to be displaced, wherein instead a support roller (31) assumes its position shown in Figure 3.

As illustrated in FIG. 3, the contour of the discharge path (15) in the area below the Florauslass (12) has different angles of inclination (0C, β). These can be directed against the horizontal or against the horizontal Florauslass (12) and downwards. The inclination angle (OC) refers to the rear portion of the discharge path (15) to the bending or discontinuity (20). The inclination angle (ß) relates to the front region of the discharge track (15) from the bending or discontinuity (20) in the discharge direction (27) seen. The angle of inclination (OC) can be 0 °, with the rear area of the discharge path (15) being aligned horizontally and parallel to the Florauslass (12). In the exemplary embodiment, the inclination angle (OC) is greater than 0 °. This results in the rear region of the discharge path (15) an in

Discharge direction (27) increasing gap width (a). The inclination angle (β) is greater than the inclination angle (OC). As a result, the downward angle of inclination (β) of the web (15) behind the bending or discontinuity (20) increases. The gap width (b) also increases from the bending or discontinuity (20). Overall results between the discharge path (15) and the Florauslass (12) a discontinuously varying gap width (a, b).

The discharge path (15), according to FIG. 3, has a path bent downwards or angled in the discharge direction (27) in the region below the Florauslass (12). In the embodiment shown, a single bending ^¬ or discontinuity (20) is present. Alternatively, two or more such sites may be present. The course contour formed thereby can be correspondingly

have angled or soft rounded shape.

In the exemplary embodiment of a discharge belt (13), the adjusting device (19) for the leveling contour has an adjustable support device (21) for the discharge path (15), which is arranged below the fabric outlet (12).

especially for the upper run, up. The support means (21) is preferably rotatable in the belt conveyor

Support roller (22) formed. Alternatively, the

Support means (21) a support beam or other support member with a low-friction surface for the circulating discharge belt (13).

In addition, other design variants are possible. A roller conveyor may e.g. be divided into a plurality of articulated interconnected track sections in length. The course contour can be adjusted by swiveling and raising / lowering the track sections and adjusted if necessary. The support device (21) is connected to a single-axis or multiaxial (24,25) adjusting device (23).

For this example, the support roller (22) with a Cross slide assembly on the adjusting axes (24,25) in height and horizontally adjusted according to Abführrichtungskomponente. Alternatively, a uniaxial

Adjustment possible, e.g. via a pivot axis or via a single carriage with horizontal, vertical or oblique direction of movement.

The course contour and the position of the one or more bending or discontinuity points (20) can be after the

Set the number of layers in the fleece (14) and adjust accordingly. An approximately average arrangement, based on the

Florauslass (12) is for a two-ply fleece (14) of advantage. This results in particular advantages for the rear oblique ply edge or edge (29) of the just filed pile layer. When the Florauslass (12) and the lower main car (9) at the end of its transverse movement on the discharge conveyor (13) brakes, stops and then accelerated in the opposite direction, the rear edge of the sheet (29) is completely or at least

mostly in the rear region of the discharge path (15), where the gap width (a) is relatively low and vibration and pumping effects of the Florauslasses (12) or the extended bands (10,11) do not or only very slightly and cause turbulence or a folding of the rear edge of the sheet (29) can lead.

In a two-ply nonwoven fabric (14) is the first and during the way to the Florauslasses (12) deposited

Florbahn by a distance in the discharge direction (27)

which transported the said half width of the

Florauslasses (12) or half the width of the batt (4) corresponds. Accordingly, the bending or

Discontinuity (20) approximately in the middle of the Florauslassbreite or a piece in the discharge direction (27) behind it

positioned. If the fleece (14) has three or more pile layers, the bending or discontinuity (20) or the

Supporting device (21) accordingly against the Discharge direction (27) are moved to the rear. This can be done via the horizontal adjusting axis (25) of the

Actuating device (23) are effected. About the vertical adjusting axis (24) and possibly the

Adjusting means (28) of the rear guide roller (17), the change of the gap width (a) and the inclination angle (0C) can be adjusted. This allows an adaptation to different numbers of layers in the nonwoven (14) and also to different thicknesses of the batt (4). An adjustment or a change can also be adapted to different Florlauf- and

Fleece laying speeds are made. in the discharge direction (27) after the bending or discontinuity (20), the gap width (b) can be amplified and

disproportionately increase or can the

Increase angle of inclination (ß) significantly, so that the multi-layer nonwoven fabric (14) can be removed without forcing.

For a two-ply nonwoven (14), e.g. the distance (a) should be constant and the angle CC should be 0 °. The

Distance measure (a) can be a size of e.g. 0 - have 5 mm. At 0 mm, the laying belt (10, 11) lies on the fleece (14). The distance measure (a) can also be of the type and

Sensitivity of the batt (4), depend on the thickness of the board, the laying speed, etc. In a nonwoven fabric (14) having three or more layers, the distance (a) may further increase with the number of layers.

The distance (b) between the end of the Florauslasses (12) in the discharge direction (27) and the discharge path (15) or the upper run can, for example. between 20 - 900 mm or more

be. The lower value range applies to double-layered nonwovens (14), and as the number of layers increases, the distance (b) also increases. The fleece (14) can from the discharge conveyor (13) to a downstream and indicated in Figure 3

Further processing (30), especially one

Solidification be submitted. Such a solidification device may e.g. a needle machine, a thermal hardening device, a

Hydroentangling or the like. Alternatively, the nonwoven fabric (14) can also be wound or otherwise aftertreated.

The profile of the fleece (14) on the discharge conveyor (13) can be influenced in cross section and / or in longitudinal section, with a regulation is possible. This can serve a variety of purposes, e.g. a preventive compensation for the effects of change

Solidification apparatus. To influence the

Nonwoven profile, the laying device (7) a

Profiling device (6) upstream and / or be assigned. There are different ones for this

Design options.

A profiling device (6) can be integrated into the nonwoven layer (3) and controls the amount of web emerging at the web outlet (12) during the travel movement of the web

Florauslasses (12). By depositing more or less fibrous web, the nonwoven profile or the basis weight of the nonwoven (14) in the transverse and / or longitudinal direction is changed. Another profiling option is the

Production of thin spots or thickenings in the fiber web (4) supplied to the nonwoven layer (3). A

Profiling device (6) can for this purpose e.g. when

Stretching device may be formed, which generates thinning by stretching and deposits them at the desired locations in the fleece (14). This can e.g. the

Be fleece edge areas to avoid local Randanhäufungen. Figure 1 shows e.g. such

Stretching device (6) in the inlet region of the nonwoven layer (3). Such a stretching device (6) can also be arranged between the nonwoven layer (3) and the pile generator (3). A stretching device may have one or more, preferably two, three or more stretching zones with a corresponding number of clamping points for the batt (4).

Figure 1 shows an example of a part of the beginning

said fiber plant (1). The pile producer (2) is here e.g. designed as a card or clutter on his

Output a single-lane or multi-lane batt (4), which is fed to the nonwoven layer (3) directly or by means of an intermediate feeder (5), wherein a stretching device (6) is interposed. To compensate for the fluctuating Florlaufgeschwindigkeit occurring in a stretching device can be integrated into the nonwoven layer (3) a buffer device. It may alternatively be upstream or downstream of the nonwoven layer (3). The aforementioned

Further treatment device (30), in particular

Solidification device may also be part of the fiber plant (1). It is only indicated schematically in FIG. 3 for the sake of clarity. It may have its own conveyor system for the fleece (14).

Modifications of the shown and described

Embodiments are possible in various ways. The features of these examples can be combined with each other or even exchanged. Also the

Nonwoven layer construction may vary, eg as Wagenleger or Steilarmleger or so-called Camelback-Leger. LIST OF REFERENCE NUMBERS

1 fiber plant

2 pile producers, card

3 nonwoven layers, stacker

4 fibrous web

5 feeder

6 profiling device, stretching device

7 laying device

8 main cars, superstructure

9 main cars, carriage

10 tape, feeding belt

11 band, counterband

12 Florauslass

13 discharge conveyor, discharge conveyor

14 fleece

15 discharge track, upper strand

16 lower run

17 pulley

18 pulley

19 Device for adjusting the contour of the web

20 jump point, bending point, kink point

21 stud facility

22 support roller

23 adjusting device

24 positioning axis vertical

25 positioning axis horizontal

26 Feeding

27 laxative

28 adjusting means

29 ply edge

30 further processing, solidification device

31 support roller

tilt angle

ß inclination angle

a gap width

b gap width

Claims

1.) nonwoven layer, in particular crosslapper, with a

Laying device (7) for folding over a supplied fibrous web (4) and forming a multilayer web (14) on the discharge path (15) of a transversely or obliquely to the feed direction (26) extending discharge conveyor (13), characterized in that the discharge conveyor (13) a device (19) for

Adjustment of a discharge direction (27)

varying course contour of the discharge path (15) in the area below the Florauslass (12) of the

Laying device (7).

2.) Fleece layer according to claim 1, characterized

e, that the course contour of the discharge track (15) in the area below the Florauslass (12) by means of an adjusting device (23) in one or more axes (24,25), in particular vertically and / or horizontally adjustable and possibly

is adjustable.

3.) A nonwoven layer according to claim 1 or 2, characterized

e, that the course contour of the discharge track (15) in the area under the Florauslass (12) depending on the number of layers of the web (14) is adjustable and possibly adjustable.

4.) A nonwoven layer according to claim 1, 2 or 3, characterized

e, that the course contour of the discharge path (15) in the area below the Florauslass (12) has a bending or discontinuity (20).

5.) A nonwoven layering device according to one of the preceding claims, characterized in that a

Bending or discontinuity (20) of the contour contour approximately in the central region of the width of the Florauslass (12) is arranged in the discharge direction (27) seen.

Nonwoven layering machine according to one of the preceding claims, characterized in that the position of a bending or discontinuous point (20) of the

Course contour in the area below the Florauslass (12) by means of an adjusting device (23) in one or more axes (24,25), in particular vertically and / or horizontally adjustable and possibly

is adjustable.

Nonwoven layering machine according to one of the preceding claims, characterized in that the

Course contour of the discharge path (15) in the area below the Florauslass (12) of different sizes

Inclination angle (OC, ß) has.

Nonwoven layering machine according to one of the preceding claims, characterized in that a downwardly directed angle of inclination (OC, β) of the

Abführbahn (15) in the area below the Florauslass (12) in the discharge (27), in particular behind a bending or discontinuity (20), increases.

Slit width (a, b) between the discharge path (15) and the Florauslass (12) varies discontinuously. 10.) A nonwoven layering machine according to one of the preceding claims, characterized in that the

Gap width (a, b) between the discharge path (15) and the Florauslass (12) in discharge direction (27),

in particular increases behind a bending or jump point (20) increases.

11.) A nonwoven layering device according to one of the preceding claims, characterized in that the

Abführbahn (15) in the area below the Florauslass (12) in the discharge direction (27) bent downwards or angled course.

12.) A nonwoven layering device according to one of the preceding claims, characterized in that the

Abführbahn (15) in the area below the Florauslass (12) in a discharge direction (27) obliquely downward basic inclination.

13.) A nonwoven layering machine according to one of the preceding claims, characterized in that the

Abführförderer (13) as a circumferential discharge belt and the discharge path (15) is designed as its upper run.

14.) A nonwoven layering machine according to one of the preceding claims, characterized in that the

Device (19) comprises a below the Florauslass (12) arranged adjustable support means (21) for the discharge path (15), in particular the upper run has.

15.) A nonwoven layering device according to one of the preceding claims, characterized in that the

Supporting device (21) is designed as a rotatable support roller (22).

16.) A nonwoven layering machine according to one of the preceding claims, characterized in that the

Supporting device (21) is connected to a single-axis or multi-axis adjusting device (23).

17.) A nonwoven layering machine according to one of the preceding claims, characterized in that the

Laying device (7) several, in particular two, over the discharge conveyor (13) transversely and reversibly movable main carriage (8,9) and several,

in particular two, over pulleys on the

Main carriage (8,9) guided endless belts (10,11). 18.) A nonwoven layering machine according to one of the preceding claims, characterized in that the lower main carriage (9) has a Florauslass (12) for the

Fibrous web (4) between the levers (10,11).

19) A nonwoven layering device according to one of the preceding claims, characterized in that the

Laying tapes (10,11) from the Florauslass (12), starting in opposite directions across the discharge conveyor (13) extend and the fleece

(14) cover.

20.) A nonwoven layering device according to one of the preceding claims, characterized in that the

Nonwoven layer (3) one of the laying device (7)

upstream and / or associated

Profiling device (6) for the fleece (14). 21.) fiber plant with a pile generator (2), in particular a card or carding machine, for producing a

Fibrous webs (4) and a nonwoven layer (3),

in particular cross-stacker, for forming and dispensing a multilayer web (14) on one

Discharge conveyor (13), by

in that the nonwoven layer (3) according to at least one of claims 1 to 20 is trained.

22) fiber plant according to claim 21, characterized

There is no difference between the

Output of the pile generator (2) and the nonwoven layer (3) a profiling device (6), in particular a stretching device, for the deposited nonwoven fabric (14) is arranged. 23) fiber plant according to claim 21 or 22, characterized

e, that the nonwoven layer (3) further processing (30), in particular a

Solidification device, downstream of the discharged nonwoven fabric (14).

24.) A method for laying a nonwoven fabric (14) by means of a nonwoven layer (3), in particular a crosslapper, with a laying device (7) which folds a fed Fib (4) and a multilayer web (14) on the discharge path (15) of a forms transversely or obliquely to the feed direction (26) extending discharge conveyor (13), characterized in that the discharge conveyor (13) in the discharge (27) varying course contour of the discharge path (15) in the area below the Florauslass (12)

Laying device (7) is set.

(AI)

25.) Process according to claim 24, characterized

That is, the varying course contour of the discharge path (15) is set in the vertically projected area below the Florauslass (12) of the laying device (7). 26.) Process according to claim 24 or 25, characterized

There is no such thing as that in the

varying course contour different Gaps (a, b) between the discharge path (15) and the Florauslass (12) can be adjusted.

(P.6 / 7) 27.) Method according to claim 24, 25 or 26, characterized

e, that the course contour of the discharge track (15) in the area below the Florauslass (12) by means of an adjusting device (23) in one or more axes (24,25), in particular vertically and / or horizontally adjusted and possibly adjusted.

28.) Method according to one of claims 24 to 27,

By doing so, that the

Course contour of the discharge track (15) and the

Gaps (a, b) in the area below the Florauslass (12) depending on the number of layers of the web (14) and adjusted if necessary. 29.) Method according to one of claims 24 to 28,

By doing so, that the

Progressive contour of the discharge path (15) in the area below the Florauslass (12) with a bending or

Jump point (20) is provided, which is approximately in

middle region of the width of the Florauslass (12) in

Abführrichtung (27) is arranged seen.

30.) Method according to one of claims 24 to 29,

By doing so, the position of a bend or jump point (20) of the

Course contour in the area under the Florauslass (12) by means of an adjusting device (23) in one or more axes (24,25), in particular vertically and / or horizontally adjusted and possibly adjusted. Method according to one of claims 24 to 30, characterized in that in the course contour of the discharge path (15) in the area below the Florauslass (12) of different sizes

Inclination angle (0C, ß) are set, wherein the downward inclination angle (ß) and the gap width (b) in the discharge direction (27) seen behind a bending or discontinuity (20) in the

Gradient contour increase.