EP3119712B1 - Sliver guide for a drawing frame, and drawing frame - Google Patents

Description

The present invention relates to a sliver guide for guiding a plurality of slivers in an entrance area of a track, comprising a first guide section for guiding a first group of slivers, with a second guide section for separately guiding a second group of slivers, wherein the first guide section and the second guide section in FIG a side view of the tape guide are spaced from each other. In addition, a route is proposed with at least one entry area for fiber slivers to be drawn and with at least one drafting system comprising a plurality of drafting rollers, wherein in at least one entrance area a first guide section is arranged to guide a first group of slivers, wherein in said entry area second guide portion for separately guiding a second group of fiber ribbons is arranged, and wherein the first guide portion and the second guide portion are spaced apart in a side view of the distance.

Stretching is primarily used to produce as uniform a fiber fleece as possible from a plurality of fiber ribbons. For this purpose, the track has one or more draw frames, which in turn comprise a number of default members, usually in the form of a plurality of successively arranged pairs of rollers, wherein the slivers are guided between the respective roller pairs by clamping. Since the pairs of rollers have different and in the direction of tape travel increasing peripheral speeds, the slivers are finally stretched and thereby evened.

In general, in known areas in the entrance area, ie in the area in which the slivers enter the drafting system, a band leader placed, for example, a plurality of vertically extending rods, between which the individual slivers are guided.

The DE 41 42 038 A1 describes a path for warping a plurality of slivers. The line comprises draw-in cylinders for the common supply of the slivers to the drafting system and a funnel with a passage opening for the union of the slivers to form a fiber composite during the passage of the slivers through the funnel. It is further provided that the cross-sectional area of the passage opening of the funnel is variable such that the funnel regardless of the number of processed fiber slivers achieves a uniform density of the sliver after the funnel.

If the individual fiber ribbons have different quality (eg different thicknesses or fiber lengths), then the fiber fleece leaving the stretch usually also has a quality which fluctuates over its width, since thorough mixing of the fiber ribbons takes place only to a limited extent within the stretch.

Object of the present invention is therefore to propose a band leader or a route that allow the drawing of slivers of different quality, the production of a non-woven fabric, which is characterized by a high degree of homogeneity.

The object is achieved by a band guide and a drafting system with the features of the independent claims.

According to the invention, the strip guide next to a first and a second guide portion on a third guide portion which is spaced in a side view from the first and second guide portion, wherein at least one of the guide portions are associated with lateral guide elements for laterally guiding slivers, their mutual Distance is adjustable. Here, the first guide portion of the guide of a first group of slivers and the second guide portion of the guide of a second group of slivers. Finally, the third guide section preferably serves to guide all the fiber slivers fed to the drafting system after passing through the first and second guide sections. In other words, the band guide is designed to first cause a separation of the supplied slivers in two groups, which are guided separately from the two first guide sections, the slivers reunited after passing these guide sections and before entering the drafting by the third Guide section are performed. Finally, it can be determined by the lateral guidance how closely the individual fiber ribbons pass through the respective guide sections.

In this case, it would be advantageous, for example, if the mutual distance between the two guide elements of the third guide section is set only slightly larger or smaller than the mutual distance of the guide elements of the first and / or second guide section. In this case, after passing through the first and second guide sections, overlapping of the individual slivers in the region of the third guide section inevitably occurs, so that the slivers are already superimposed before entering the drafting system and a kind of mixing of the individual slivers takes place. In particular, this results in a particularly even distribution of the individual fibers of the fiber slivers supplied to the track (the thickness and / or composition may be different) in the distorted fiber structure and thus also in the yarn produced from the fiber structure in a further step. Furthermore, the setting of said distance allows a simple way to adjust the band guide to different slivers or different numbers of slivers, in particular, the distance between the guide elements of the third guide portion should be selected so that its amount is smaller than the total width all slivers. This will eventually ensure that there is a certain overlap or overlap of the slivers and thus the desired mixing of the individual slivers.

It is advantageous if the band guide has a fourth guide portion which is spaced in the said side view of the first, the second and the third guide portion, wherein the fourth guide portion preferably also lateral guide elements for the lateral guidance of slivers are assigned, the mutual distance preferably adjustable is. The fourth guide section is preferably arranged on the side of the second and / or third guide section facing away from the first guide section. Preferably, the fourth guide portion serves to guide all of the slivers fed to the sliver guide before they enter the region of the first and second guide portions where they are split into the said two groups. Preferably, the said guide portions are aligned in a side view of the tape guide such that they are located on the corners of a rhombus, wherein the first guide portion of the second guide portion and the third guide portion should oppose the fourth guide portion. Preferably, the third and the fourth, particularly preferably also the first and the second guide section also have lateral guide elements whose mutual distance from one another is adjustable. For this purpose, in turn, at least one, preferably both, guide elements of each guide portion are movably mounted and fixed in the respective desired position. In particular, it is advantageous if the respective guide elements are mounted displaceably perpendicular to a predetermined sliver transport direction of the sliver guide in order to limit the area to be passed by the slivers in its perpendicular to the sliver transport direction width (side).

Particular advantages arise when at least two of the guide sections extend parallel to one another, wherein it is particularly advantageous if all guide sections are parallel to each other in order to guide the slivers in a linear transport direction (wherein the guide sections are preferably parallel to each other and perpendicular to predetermined direction of transport of the tape guide should extend). The longitudinal extent of the guide sections also preferably runs in each case perpendicular to the predetermined fiber transport direction of the tape guide. Preferably, the guide portions are formed in a plan view of the tape guide as connecting portions of two preferably extending in said fiber transport direction side walls, wherein the connection between the side walls and the individual guide portions or the guide portions having components can be detachably formed. In addition, the side walls or other wall sections of the tape guide with one or more brackets, for example in the form of tabs, bolts or other elements, be provided over which the tape guide can connect with a stretch.

It is also advantageous if at least one of the guide portions is formed by a surface portion of an elongated, one or both sides mounted, guide rod. The guide rod can be in a cross section, for example, circular, lens or oval-shaped. Moreover, it is advantageous if all guide sections are formed by surface sections of separate guide rods, which in turn preferably run parallel to one another. Moreover, it is advantageous if the respective guide rods are fastened on both sides in two, in particular mutually parallel, side walls of the tape guide, wherein the attachment is preferably releasably, for example by means of screw, realized. The side walls should also preferably run perpendicular to the longitudinal axes of the guide rods and parallel to the sliver transport direction of the tape guide.

It is also extremely advantageous if at least one guide element is positively connected to a guide rod and is displaceable in the longitudinal direction of the guide rod. By displacing one or two adjacent guide elements of a guide section, it is finally possible to determine the mutual spacing of the guide elements and thus the width of the region of the corresponding guide section to be passed by the respective fiber slivers. The respective guide element may, for example, have a depression or a bulge, via which it can cooperate in a form-fitting manner with a bulge or depression of the guide section assigned to it.

It is also advantageous if at least one guide element comprises a fixing means by means of which it can be fixed relative to the guide rod. As a result, the position of the respective guide element can be securely maintained after adjusting its distance from the adjacent guide element. The fixing means may be, for example, a screw or a threaded pin, which sits in a thread of the guide element and which is pressed against a guide section during tightening. Likewise, various clamping mechanisms are possible, so that the corresponding guide element can preferably be fixed by means of adhesion at a defined location of a guide section.

Moreover, it is advantageous if at least one guide element is formed by an eccentric disk having an eccentrically arranged aperture, wherein the aperture is preferably penetrated by the guide rod and the eccentric disk does not necessarily have to be round. The eccentric discs, of which two are preferably present per guide rod, can be moved after loosening a corresponding fixative in the longitudinal direction of the guide rod so that their mutual distance is easy and fast ver and thus adjustable. In addition, it can be determined by turning the respective eccentric disc about its axis of rotation passing through the aperture, in which direction the majority of the eccentric disk should extend in order to be able to optimally adapt the guide element formed by the eccentric disk to the fiber slivers to be drawn.

Furthermore, it is advantageous if at least one guide element is pivotable about a pivot axis. For example, it would be conceivable to design the guide element or elements in a paddle-shaped or paddle-shaped manner, wherein one or more side edges could be rounded off. The corresponding guide elements could in turn each, preferably eccentrically, be connected via a pivot axis with one of the guide sections, which by pivoting one or both guide elements of a guide section whose mutual distance and thus the passage width for the slivers would be adjustable. The respective pivot axis preferably extends perpendicular to the sliver transport direction of the tape guide. In addition, a corresponding fixing means should also be present in this case in order to be able to fix the respective guide element after pivoting with respect to the pivot axis.

It is also advantageous if at least one of said guide sections has one or more intermediate guides in the direction of its longitudinal axis, with the aid of which several slivers can be guided laterally spaced from one another. The intermediate guides are spaced apart in the direction of said longitudinal axis, so that in each case a sliver can be guided between two intermediate guides or an intermediate guide and an adjacent lateral guide element. In particular, it is advantageous if the first and the second guide section are equipped with corresponding intermediate guides, wherein the intermediate guides of the two guide sections should be arranged offset to one another in the direction of the longitudinal extension of the guide sections. This finally ensures that the slivers are guided by the two guide sections such that they leave the guide sections or when arriving in the region of the third guide section, partially overlapping each other and overlapping each other.

Likewise, it is advantageous if at least one intermediate guide is displaceable in the direction of a longitudinal axis of the guide section having the intermediate guides. In this way, the distances between the individual intermediate guides can be adjusted to each to be stretched slivers. In this case, fixing means should also be assigned to the intermediate guides in order to be able to fix their position. Incidentally, the intermediate guides may be formed by annular discs which can be inserted via an opening on a corresponding guide rod and subsequently fixed.

Furthermore, a route is proposed which takes up the invention described so far. It is thus provided that, in addition to a first and a second guide section, a third guide section for fiber ribbons is arranged in an entrance area upstream of the drafting section, which is spaced apart from the first and second guide section in a side view of the route, wherein at least one of the guide sections has lateral guide elements associated with the lateral guidance of slivers whose mutual distance is adjustable. Advantageously, the first and second guide sections in the said side view are spaced apart both vertically and horizontally. In addition, the third guide section should be adjacent to the input rollers of the drafting system, so that the fiber strips leaving the guide sections can enter directly into the drafting system.

Further advantages are achieved when a fourth guide section is arranged in said entrance area, which in the mentioned side view is spaced from the first guide section, the second guide section and the third guide section, wherein the fourth guide section preferably also has lateral guide elements assigned to the lateral guidance of slivers whose mutual distance can also be adjusted. The fourth guide section is preferably arranged upstream of the remaining guide sections in the transport direction of the drafting system and serves to guide the slivers on entry into the guide section of the track formed by the guide sections. In addition, the first and the second guide section should be arranged one above the other (possibly with slight mutual lateral offset) in the side view of the track, so that a first group of the track-fed fiber ribbons guided above the first guide section and a second group of slivers below the second guide section can be.

If the route is a so-called double-head section with two drafting devices, it is otherwise advantageous if each drafting system is assigned a separate sliver guide with the described guide sections.

Particular advantages arise when the guide sections is formed by a strap guide according to the previous or subsequent description, wherein the strap guide is preferably releasably connected to a holding portion of the route. The individual features described in connection with the tape guide or shown in the figures can hereby be implemented individually or in any combination with each other, as far as the individual features are not in contradiction to the independent claims.

It is advantageous if the first guide section, the second guide section, the third guide section and / or the fourth guide section are aligned horizontally and / or perpendicular to a transport direction of the drafting system. The slivers eventually pass below or above the individual guide sections.

Figur 1

eine Seitenansicht einer Strecke,

Figur 2

eine Perspektive eines erfindungsgemäßen Bandführers,

Figur 3

eine Draufsicht eines erfindungsgemäßen Bandführers,

Figur 4

eine Seitenansicht eines Ausschnitts eines erfindungsgemäßen Bandführers im Eingangsbereich eines Streckwerks,

Figur 5

eine Seitenansicht eines Ausschnitts eines alternativen erfindungsgemäßen Bandführers,

Figur 6

ein Führungselement für einen erfindungsgemäßen Bandführer, und

Figur 7

eine Draufsicht eines weiteren erfindungsgemäßen Bandführers.

Further advantages of the invention are described in the following exemplary embodiments. Show it:

FIG. 1

a side view of a track,

FIG. 2

a perspective of a tape guide according to the invention,

FIG. 3

a top view of a tape guide according to the invention,

FIG. 4

a side view of a section of a strip guide according to the invention in the entrance area of a drafting system,

FIG. 5

a side view of a section of an alternative tape guide according to the invention,

FIG. 6

a guide element for a strip guide according to the invention, and

FIG. 7

a plan view of another strip guide according to the invention.

FIG. 1 shows a side view of a route 4 for stretching (comparison) of several slivers 2. During the operation of the track 4, the slivers 2 are removed from one or more so-called sliver cans 21 and via corresponding deflections 20 and a band guide 1 the drafting system 18 of the route 4 (or In the case of a multi-head section: the drafting units 18 of the route 4).

The drafting system or each of the drafting units 18 generally comprises three or more roller assemblies, each of which may have at least one lower roller 17 and one or more upper rollers 25. The desired distortion of the existing from the individual slivers 2 fiber strand finally arises in that the individual cylindrical lower rollers 17 and thus also the individual, with these in contact, upper rollers 25, in the transport direction T shown of the drafting system 18 have an increasingly higher peripheral speed. While other solutions are conceivable, has the drafting unit 18 in the embodiments shown lower rollers 17 in the form of an input cylinder, a central cylinder and an output cylinder (as viewed in the transport direction successively arranged). The individual cylinders are in turn in contact with one or more counter-cylinders formed by the top rollers 25, so that the fiber structure can be guided in a clamping manner. By increasing in the transport direction peripheral speeds of said cylinder finally takes a stretching and thus a uniformity of the fiber structure.

Following the drafting unit 18, the stretched fiber material (= nonwoven fabric 19) is usually passed through a compressor, not shown, which is preferably designed as a fleece funnel and causes a compression of the nonwoven fabric 19.

Subsequently, the nonwoven fabric 19 passes into the region of a take-off device 23, which generally comprises a plurality of rotatable or at least partially driven trigger elements, for example in the form of two take-off wheels 22 contacting the fiber web 19 from two sides. The take-off device 23 causes by a correspondingly high conveying speed, a further distortion of the fiber web 19. Finally, the fiber web 19 is usually fed to a rotating turntable 16 and stored by this looped into a provided spinning can 21.

As already mentioned, the individual slivers 2 are generally guided over a band guide 1 arranged in the input region 3 of the drafting system 18. The known band guide 1 usually have a plurality of mutually parallel and vertically extending rods, between which the individual slivers 2 are performed.

However, if one of the fiber ribbons 2 has a specific property (thickness, composition, fiber length, etc.) that deviates from the corresponding property of the remaining fiber ribbons 2, this quality deficiency can usually be recognized even in the stretched nonwoven fabric 19 in that the homogeneity thereof is the same deviates from a desired setpoint.

To address this disadvantage, the present invention proposes a new band leader 1, as exemplified in the Figures 2 . 3 and 7 is shown (details of which show the FIGS. 4 to 6 ).

In principle, the strip guide 1 according to the invention comprises at least three, preferably the four shown, guide sections 5, 6, 7, 8, which serve in different ways the guidance of individual or all the drafting system 18 to be supplied slivers 2, wherein the drafting system 18 based on FIG. 2 would be left down and the band guide 1, for example, on the brackets shown 24 with a corresponding connection of the track 4 may be connected such that the slivers 2 after leaving the band guide 1 directly into the drafting system 18, or between the two input rollers (in FIG. 1 shown on the left).

How now from the Figures 3 (Top view) and 4 (principal course of the individual slivers 2 in a side view of the strip guide 1 shown only schematically) to recognize the slivers 2, which are preferably seen in the transport direction initially using the fourth guide section 8, divided into two groups ( Alternatively, the fourth guide section 8 could also be dispensed with, the slivers 2 in this case after passing the in FIG. 1 shown deflections 20 on the first and second guide section 5, 6 would split).

As in this context FIG. 4 As can be seen, the first group of slivers 2 may be above their underside on the first guide section 5, while the slivers 2 of a second group can rest from below on the second guide section 6 and thus also be guided at least in the vertical direction.

After passing through the first and the second guide section 5, 6, the fiber ribbons 2 finally come into the region of a third guide section 7 (see also FIG. 3 ), wherein the individual slivers 2 are at least partially superimposed (this is in FIG. 4 indicated by the spacing of the fiber ribbons 2 between the third guide section 7 and the input roller arrangement of the drafting system 18 following in the transport direction T). This results in a mixing of the individual slivers 2 before entering the drafting system 18, so that differences in quality can affect less strongly on the drafting system 18 leaving nonwoven fabric 19.

Of course, the course of the fiber ribbons 2 shown is only to be understood as an example. Likewise, it would be z. B. conceivable, the fibers according to FIG. 5 to lead, in which case the third guide section 7 is passed from the first group of slivers 2 above and from the second group slivers 2 below.

It should also be noted at this point in general for the entire disclosure that the invention is not limited to distributing the slivers 2 on two guide sections. Rather, it would also be conceivable to provide further guide sections in addition to the aforementioned first and second guide sections 5, 6, so that the fiber slivers 2 could, for example, also be divided into three or four groups, before they are used in the area of the "third guide section" in the previous description "designated guide section 7 reunited and superimposed here.

In general, however, it is essential to the invention that at least one of the guide sections 5, 6, 7, 8 is assigned two lateral guide elements 9 for the fiber slivers 2 to be guided, the distance A of the guide elements 9 being adjustable (preferably by movement of one or both guide elements 9). , As in this context z. B. off FIG. 3 can be seen, the guide elements 9 serve the lateral guidance of the slivers 2 and thus the determination of the width of the fiber bands to be passed by the guide portion 2. Depending on the type, number and thickness of the slivers 2 to be stretched, said width can finally be adjusted by moving one or both guide elements 9, so that it is always ensured that the slivers 2 at least partially overlap in the region of the third guide section 7.

Like, for example FIG. 2 (in which the guide elements 9 are not shown for reasons of clarity) can be seen, the individual guide sections 5, 6, 7, 8 are preferably realized by separate guide elements 9, in particular in the form of, for example, on both sides relative to corresponding side walls fixed guide rods 10. The guide rods 10 may be in cross section, for example, round, oval or teardrop-shaped and with the aid of fixing means 11, z. As screws, releasably connected to the side walls 26 of the tape guide 1.

Furthermore, it is conceivable that intermediate guides 15 are provided in the region of the individual guide sections 5, 6, 7, 8, preferably in the region of the first and the second guide section 5, 6. These may be formed, for example, by annular disks which are mounted on the said guide rods 10, for example releasably, and with the aid of which the individual fiber bands 2 can be guided separately from one another (cf. FIG. 7 ). The intermediate guides 15 of the individual guide sections 5, 6, 7, 8 can also be offset relative to one another in the width direction of the strip guide 1 (ie perpendicular to the transport direction T), resulting in a particularly Reliable overlay of the individual slivers 2 in the region of the third guide section. 7

As the Figures 3 and 7 Moreover, the guide elements 9 can be fastened directly to a guide rod 10 having a guide section 5, 6, 7, 8, it being conceivable, for example, to form the respective guide element 9 paddle-shaped and to fasten the guide rod 10 by means of a pivot axis 14 realize, so that by pivoting the one or more guide elements 9 and their mutual distance A can be adjusted.

Alternatively, the guide elements 9 can also through in the FIGS. 5 to 7 shown eccentric discs 13 are formed, which are preferably placed over an opening 12 on the respective guide rod 10 and z. B. with a fixing means 11 (screw, threaded bolt, o. Ä.) Can be fixed to the intended position. By turning the eccentric discs 13, finally, the lateral guidance of the slivers 2 can be adjusted if necessary (s. FIG. 5 in which the eccentric discs 13 are aligned differently; in FIG. 5 Incidentally, only the guide elements 9 arranged at the rear in relation to the sheet plane are shown in order to allow a view of the fiber slivers 2).

The present invention is not limited to the illustrated and described embodiments. Modifications within the scope of the independent claims are possible. For example, the individual guide sections need not all be part of a strip guide that can be detachably connected to the track. Rather, the individual guide portion may be independently secured to a support or a frame of the track.

reference numeral

1

ringleader

2

sliver

3

entrance area

4

route

5

first guide section

6

second guide section

7

third guide section

8th

fourth guide section

9

guide element

10

Corporate Office

11

fixer

12

perforation

13

eccentric

14

swivel axis

15

intermediate guide

16

turntable

17

bottom roll

18

drafting system

19

non-woven fabric

20

redirection

21

spinning can

22

drafting wheel

23

off device

24

holder

25

top roll

26

sidewall

A

distance

T

Transport direction of the drafting system

Claims (14)

1. Sliver guide for guiding a multiple number of fiber slivers (2) in an entrance area (3) of a draw frame (4),

   - with a first guide section (5) for guiding a first group of fiber slivers (2),

   - with a second guide section (6) for the separate guidance of a second group of fiber slivers (2),

   - whereas, in a side view of the sliver guide (1), the first guide section (5) and the second guide section (6) are spaced apart from each other,

   characterized in that the sliver guide (1) features a third guide section (7) which, in the specified side view, is spaced apart from the first guide section (5) and the second guide section (6), whereas lateral guide elements (9) are allocated to at least one of the guide sections (5; 6; 7) for the lateral guidance of fiber slivers (2), whereas the mutual distance (A) of the guide elements (9) is adjustable.
2. Sliver guide in accordance with the preceding claim, characterized in that the sliver guide (1) features a fourth guide section (8) that, in the specified side view, is spaced apart from the first guide section (5), the second guide section (6) and the third guide section (7), whereas lateral guide elements (9) are likewise preferably allocated to the fourth guide section (8) for the lateral guidance of fiber slivers (2), whereas the mutual distance (A) of the guide elements (9) is preferably adjustable.
3. Sliver guide in accordance with one of the preceding claims, characterized in that at least two of the guide sections (5; 6; 7; 8) run parallel to each other.
4. Sliver guide in accordance with one of the preceding claims, characterized in that at least one of the guide sections (5; 6; 7; 8) is formed by a surface section of an elongated guide rod (10) that is mounted on one side or both sides.
5. Sliver guide in accordance with the preceding claim, characterized in that at least one guide element (9) is in a positive-locking connection with a guide rod (10) and can be displaced in the longitudinal direction of the guide rod (10).
6. Sliver guide in accordance with claim 4 or 5, characterized in that at least one guide element (9) comprises a fixing means (11), with the assistance of which it can be fixed with respect to the guide rod (10).
7. Sliver guide in accordance with one of the claims 4 to 6, characterized in that at least one guide element (9) is formed by an eccentric disk (13) featuring an eccentrically arranged through hole (12), whereas the through hole (12) is preferably penetrated by the guide rod (10).
8. Sliver guide in accordance with one of the preceding claims, characterized in that at least one guide element (9) is pivotable around a pivot axis (14).
9. Sliver guide in accordance with one of the preceding claims, characterized in that the first guide section (5), the second guide section (6), the third guide section (7) and/or the fourth guide section (8) feature, in the direction of their longitudinal axis, one or more intermediate guides (15), with the assistance of which several fiber slivers (2) can be guided in a manner laterally spaced to each other.
10. Sliver guide in accordance with the preceding claim, characterized in that at least one intermediate guide (15) can be displaced in the direction of a longitudinal axis of the guide section (5; 6; 7; 8) featuring the intermediate guides (15).
11. Draw frame with at least one entrance area (3) for fiber slivers (2) to be drafted, and with at least one drafting system (18), comprising a multiple number of drafting system rollers (17),

    - whereas, in at least one entrance area (3), a first guide section (5) is arranged for guiding a first group of fiber slivers (2),

    - whereas, in the specified entrance area (3), a second guide section (6) for the separate guidance of a second group of fiber slivers (2) is arranged,

    - whereas the first guide section (5) and the second guide section (6) are, in a side view of the draw frame (4), spaced apart from each other,

    characterized in that , in the specified entrance area (3), a third guide section (7) is arranged, which, in the said side view, is spaced apart from the first and second guide sections (5; 6), whereas lateral guide elements (9) are allocated to at least one of the guide sections (5; 6 ;7) for the lateral guidance of fiber slivers (2), whereas the mutual distance (A) of the guide elements (9) is adjustable.
12. Draw frame in accordance with the preceding claim, characterized in that in the specified entrance area, a fourth guide section (8) is arranged, which, in the specified side view, is spaced apart from the first guide section (5), the second guide section (6) and the third guide section (7), whereas it is preferable that lateral guide elements (9) are likewise allocated to the fourth guide section (8) for the lateral guidance of fiber slivers (2), whereas the mutual distance (A) of the guide elements is preferably adjustable.
13. Draw frame in accordance with claim 11 or 12, characterized in that at least a part of the guide sections (5; 6; 7; 8) is formed by a sliver guide (1) in accordance with one of the claims 1 to 10.
14. Draw frame in accordance with one of the claims 11 to 13, characterized in that the first guide section (5), the second guide section (6), the third guide section (7) and/or the fourth guide section (8) are aligned horizontally and/or perpendicular to a transport direction (T) of the drafting system (18).

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