EP0828017A2 - Spinning beam - Google Patents

Abstract

A beam (1) for the melt spinning of chemical fibres which is formed as a gas-tight container (2) is penetrated by perpendicular tubes (3) each of which is fixed to a spinneret pot (16) enclosed from below by a spinneret plate (24). Each pot is connected to a melt feed conduit (7, 8) via a metering pump (10, 11, 12, 15). Each tube is attached to a support plate (4), which fills its cross-section and is attached to the metering pump and the pot below. The feed conduit is connected to a melt channel (8A) set in the support plate and via the pump in a pressure-tight connection to the spinneret pot. Also claimed are: (i) a process for manufacturing the above melt spinning beam; and (ii) a spinning system with two beams back-to-back about a vertical symmetrical plane with a transverse blower duct below the beams.

Description

The invention relates to a spinning beam according to the preamble of the claim 1. Such a spinning beam is known from DE 33 43 714 A1.

Melt spinning devices for spinning chemical fibers with arrangement the spinning heads in spinning beams are from the state of the art - see for example US-PS 3,891,379, DE 33 43 714 A1, DE-GM 84 07 945 or EP-B 0 163 248 - known in different versions. All or but most of the known spinning devices are technically complex executed at least approximately the same operating conditions on the with to reach the same program operated spinning stations. This Efforts are necessary and also common to get high quality To produce multifilament threads. This also means that the required Maintenance is high.

By the aforementioned DE 33 43 714 A1 a system for double-sided continuous spinning of man-made fibers known has double-sided spinning block. This spinning block encloses a closed, heated construction component, in which this penetrating, vertically and in line aligned pipes are used, in each spinning stations consisting of a filter and a spinneret plate are. In the said spinning block there are melt dosing pumps (Dosing gear pumps) housed by distribution lines from one Melting extruders are supplied with spinning melt and these to the Promote spinning stations. With these melt dosing pumps, however, only protrudes each the part containing the connections for the spinning melt in the heated construction component (vessel).

The closed vessel is heated by an in the entrance DE 33 43 714 A1 referred to as diathermic, by electrical Resistance heating elements heated, in one under the spinneret units provided sump containing oil. However, only those are heated parts lying in the closed interior of the spinning block.

The construction known from the aforementioned DE 33 43 714 A1 has significant disadvantages. That comparable to a spinning beam Construction component shows a very jagged, only very complex to manufacture. In addition, as already mentioned, the mentioned melt dosing pumps in the heat insulation and only partially inside the closed vessel. They are therefore only partially heated.

The invention is based on the object, in particular for Production as well as for the operation and maintenance of the spinning stations reduce the effort required and for all spinning positions of the spinning beam to achieve the same production conditions. This task will solved according to the invention by the features of claim 1.

The advantages of the spinning beam according to claim 1 lie in a uniform Heating of all melt-carrying components for all spinning positions as well as good accessibility of the components to be serviced with melt dosing pump, Pump drive and nozzle package. Additionally arise advantageous solutions for the assembly and installation of prefabricated assemblies into the vessel surrounding the spinning positions.

Advantageous embodiments of the invention are in the dependent claims specified and explained in more detail in the drawings.

In all cases, the central component of the spinning station is the support plate, which is permanently installed in each tube, with its melt channel and a connection to the melt distribution line. The support plate fills the cross section of each pipe and prevents heat loss through a chimney effect in the vertical pipes. The melt dosing pump is in each case a small individual pump with an outer contour adapted to the inner tube cross section. It can be attached according to claim 2 in the spinning direction below the support plate or alternatively according to claim 7 on the support plate. In the first case, the nozzle pot is connected to the self-sealing nozzle package according to claim 5 or claim 10 by a screw connection according to claim 3 or 8 with a circular cylindrical projection on the lower pump plate; in the second case, the projection for attaching the nozzle pot is on the underside of the support plate. Alternatively, according to claim 4 or 9, a fastening of the nozzle pot, which then carries the fastening means on the outer circumference, is provided on the inner circumference of the vertical tube receiving the melt-carrying components.
In all cases, the pump drive shaft is mounted from above. In the first case it is passed axially through the support plate, in the second case it is shorter and only extends to the pump wheels.

The melt feed is a tubular distributor line, which is sealingly connected to the bottom of the boiler or vessel through which it is penetrated, in particular by welding. It runs without a gradient within the vessel and is laterally guided along the same distance from the row of spinning positions. The connection between the distributor line and the melt channel provided in the support plate and leading to the spinning pump is made in a preferred embodiment by a spur line which is guided from the distributor line to the melt channel in the support plate and which starts in particular from the underside of the distributor line. In order to make this possible, this is set higher than the inputs of the melt channels in the support plates (claim 14).
The melt feed can also be designed so that the distributor line in the spinning beam is branched into a plurality of stub lines of the same length and preferably the same pressure gradient, which are each connected to the melt channel in the support plate of a spinning station (claim 15).

The single spinning pump consists of three plates with two side walls and of the eyeglass plate that receives the gears. There is a possibility by removing it upwards or alternatively after unscrewing the nozzle bowl the spinning pump, for example, for cleaning or replacing Removing and reinstalling parts.

According to the invention, the nozzle plate, the filter insert, the distributor plate and the pressure piston loading the sealing membrane Nozzle pot on the spinning pump or the support plate attached to the support plate hung yourself. For this, the wall of the lower spinning pump plate with a thread on its underside Have a head start. The upper edge of the nozzle pot is with provided with a counter thread so that the nozzle pot with the spinning pump can be screwed. The projection can be annular and have an internal thread or a circular cylindrical envelope surface with Have external thread. Can in a central bore of the pressure piston preferably for repeated mixing of those leaving the spinning pump A statically effective mixing insert can be used. More preferred Forms of fastening are a bayonet lock or a threaded connection with the vertical tube receiving the nozzle pot.

For the vessel according to the invention for holding the heating medium, a A smooth, as little jagged shape as possible. The basic form the cross-section be essentially rectangular or circular, it can be crucial that as a starting material for a circular cylindrical Housing a large selection of pipes of different diameters, Wall thicknesses, etc. is available while a rectangular one Cross-section can have advantages for the design. Either way the required gas and pressure tight connection between the vessel wall and the spinning stations or the tube sections forming the ends of the spinning stations be produced directly or indirectly by welding.

This can be done to produce the spinning beam according to the invention be that - if necessary with a suitable, the exact location and the dimensional accuracy in the arrangement of the individual parts of the spinning stations and the melt feed ensuring assembly device - first the spinning positions assembled and spatially connected to the melt distribution line be that in the previously with the vertical tubes or their penetration holes marking their locations open vessel can be inserted as a structural unit.

It should be noted that the length of the assembled spinning positions must be smaller than the height of the rectangular vessel or that in the the splints tangent to the planes of the shell circular pipe cross section.

In both cases, the entire Installation part with the lower ends of the pipes (assembly pipes) lowered in this way that the ends are inserted into the holes provided in the vessel and can be connected to the housing. After that you can use suitable means using the upper ends of the pipes (connecting pipes) Vessel wall can be connected gas and pressure tight.

So in a preferred embodiment of the invention, this connection be made by first the bottom of the mounting tube welded directly to the vessel wall after insertion becomes. Then the connecting tube with the spinning beam housing, for example connected by inserting one into the upper housing bore Pipe attachment provided mounting ring, the inside diameter of the outside diameter of the connecting pipe with little assembly play, first inserted loosely and pushed over the connecting pipe. After that, for example, the pipe shoulder of the mounting ring can first Determine its location with the case and then with the top one Edge of the connecting tube are welded (claim 22).

In order to keep the temperature in the entire nozzle pot as uniform as possible hold, it should be striven for that the necessary gap between the mounting tube and Is as narrow as possible. Therefore, to be tight and even No gap due to the welding of the mounting tube to the wall of the Endangering the vessel, another way of producing a gas and pressure-tight connection between the assembly pipe and the pipe wall specified in claim 23. It results, for example, from the fact that even before inserting the assembly part into the lower holes Recording of the spinning tube sections that are welded to their ends reaching into the housing, radially inwardly directed sealing collars to have. With the free ends of the connecting pipes in front of the Assembly postponed and gas-tight connected to the connecting pipe, Threaded rings having external threads are also provided, which are also attached their ends pointing into the housing one with the sealing collar of the pipe section have interacting sealing collar. Through threaded nuts, which are on the outer edges of the welded pipe sections with Support bundles and are guided in the pipe sections, then the Threaded rings of the connecting pipes with their sealing collars radially outwards moved and by inserting sealing rings placed between the sealing collars sealingly pressed against the sealing collars of the assembly tubes.

The spinning beam can be heated in a known manner by a heating medium, such as diphenyl, which is present as saturated steam at the spinning temperature. Known heating devices located outside the spinning beam can be used for this purpose, as can independent individual heaters integrated into the spinning beam, for example heating rods located in the condensate sump.
The invention is explained in more detail with reference to the exemplary embodiments shown in the accompanying drawing.

Fig. 1

einen erfindungsgmäßen Spinnbalken mit rechteckigem Querschnitt und Fremdbeheizung;

Fig. 2

einen Spinnbalken nach Fig. 1 mit abgeänderter Befestigung des Düsentopfes (als Ausschnitt);

Fig. 3

den Spinnbalken nach Fig. 1 mit abgeändertem Aufbau der Spinnstelle;

Fig. 5

das Detail eines Spinnbalkens ähnlich Fig. 1 mit im Gehäuse vorgesehener Heizung;

Fig. 6

ein Spinnbalken mit im wesentlichen kreisrundem Gehäusequerschnitt und auf der Unterseite angesetzter Heizung;

Fig. 7

wie Fig. 6, jedoch mit einseitiger Heizungsanordnung;

Fig. 8

ähnlich Fig. 6, jedoch mit Heizung im Spinnbalkengehäuse;

Fig. 9

Seitenansicht eines Abschnitts der montierten Einbaueinheit;

Fig. 10

die Ausgestaltung einer gasdichten Verbindung zwischen Gehäuse und Montagerohr;

Fig. 11

aus zwei rechteckigen Ausführungen zusammengesetzter Spinnbalken mit zwei parallelen Reihen von Einzelspinnstellen;

Fig. 12

wie Fig. 11, jedoch aus zwei Ausführungen mit kreisrundem Querschnitt;

Fig. 13

Querschnitt einer Schmelzspinnanlage mit einem Spinnbalken entsprechend Fig. 11.

Show it:

Fig. 1

an inventive spinning beam with a rectangular cross-section and external heating;

Fig. 2

a spinning beam according to Figure 1 with modified attachment of the nozzle pot (as a cutout).

Fig. 3

the spinning beam of Figure 1 with a modified structure of the spinning unit.

Fig. 5

the detail of a spinning beam similar to Figure 1 with heating provided in the housing.

Fig. 6

a spinning beam with an essentially circular housing cross-section and heating attached on the underside;

Fig. 7

like FIG. 6, but with one-sided heating arrangement;

Fig. 8

similar to Figure 6, but with heating in the spinning beam housing;

Fig. 9

Side view of a portion of the assembled unit;

Fig. 10

the design of a gas-tight connection between the housing and the mounting tube;

Fig. 11

spinning beam composed of two rectangular designs with two parallel rows of individual spinning positions;

Fig. 12

11, but from two versions with a circular cross section;

Fig. 13

Cross section of a melt spinning plant with a spinning beam corresponding to FIG. 11.

Fig. 1 shows the first embodiment, the cross section of a Cross section of rectangular spinning beam 1 with the melt feed 7, Spinning station 9 and heating.

The central part of the spinning station 9 is a circular cylindrical support plate 4, a pipe section 3 (assembly tube) pushed onto the lower edge thereof and is gas and pressure tight, for example by welding. Within the mounting tube 3 is on the underside of the support plate 4 from an upper side plate 10, one receiving the gears 13, 14 Housing plate 11 (glasses plate) and a lower side plate 12 and the from above through a hole in the support plate 4 to the gear 13 Drive shaft 15 existing melt metering pump (spinning pump) preferably releasably attached (not shown). To supply the spinning pump 10 - 15 with melt is in the support plate 4 one of the circumference Spinning pump inlet guided melt channel 8A provided via a Branch line 8 connected to the melt feed line 7 (distribution line) is.

It should be noted that in the selected version of the spinning pump whose inlet lies outside the support plate axis and the selected one Representation of the path of the melt and not the actual assignments reveals. The presentation therefore deviates from the real situation.

The lower side plate 12 of the spinning pump 10-15 has one with a External thread 17 provided central projection 121, with a Nozzle cup 16 is screwed. In this are the version shown - viewed from the bottom up - the spinneret plate 24, one Distribution plate 22, the filter insert 21, and a sealing membrane 20 and a this stressing pressure piston 18 housed. In a central hole the pressure piston 18 is also a mixer, for example a static one Mixing element 19 used.

A also extends from the upper edge of the support plate 4 this gas and pressure-tight pipe section 5 (connecting pipe) upwards and essentially up to one which is coaxial with the lower bore 48 Bore 50 of the vessel wall 2, which has a slightly larger diameter has 48 as the lower bore.

In the design and assembly of several spinning stations 9 and their Connection to the melt distribution line 7 existing installation unit 49 9 is that the cross section of the installation unit 49 envelopes in the free cross section of vessel 2 (boiler, boiler) Finds space. The necessary length of the mounting tube 3 results from the space required by the spinning pump 10-15 and the nozzle pot 16, which is why the Length of the connecting pipe 5 on the insertion of the installation unit 49 is to be limited in the vessel 2 enabling dimension. After insertion and adjusting the built-in unit 49 can do so far as a whole be lowered that the mounting tubes 3 with one for producing a Sufficient length of welded joint over the edges of the lower holes 48 protrude outward so that the welds on the circumference of the Tubes 3 can be produced. Therefore, the connecting pipes end 5 some distance below with the lower coaxial upper ones Housing bores 50, so that simple welding is not possible.

In Fig. 1 is a way to make a connection between the individual connecting tube 5 and the edge of the upper housing bore 50 shown. For this purpose, a hole is first made in the upper hole 50 suitable mounting ring 6 (flange) provided with a tube extension 6A, whose inside diameter is the outside diameter of the connecting pipe 5 with little assembly play, inserted into the bore 50 and pushed over the connecting tube 5 so that its upper edge in protrudes the tube extension 6A. Then the pipe socket 6A is first with the vessel wall 2 and then with the upper edge of the connecting tube 5 welded on the circumference.

The spinning beam 1 according to Fig. 1 is indirectly, i.e. from an outside of the spinning beam 1, not shown, from the heat source, for example with diphenyl as heating medium, heated. For this purpose, 2 of the spinning beam 1 leads 34 for the vaporous heating medium and condensate drains 35 are provided in the bottom.

FIG. 2 shows a different section of the spinning beam 1 according to FIG. 1 Attachment of the nozzle cup 16. Here is the mounting tube in the axial Except for a slightly larger inner diameter and in upper section, which extends to the lower side plate 12 of the spinning pump, provided with an internal thread 51 or a bayonet connection. With this thread 51 or Bejonett becomes the nozzle pot 16 with an external thread or the counterpart of the bayonet connection and inserting a Sealing ring 52 screwed. The melt seal is through the axial mobility of the pressure piston 18 loading the sealing membrane 20 guaranteed.

Fig. 3 shows an alternative structure of the spinning station. Here is the support plate 4 on its underside the projection 54 with an external thread 17 Attachment of the nozzle pot 16. The spinning pump is on the top of the Support plate 4 mounted and removable through the connecting tube 5 upwards. The melt inlet channels 8A and the outlet channel are in the Support plate 4 created according to this structure. The further opening and Assembly of the spinning beam 1 corresponds to that in the description of the Fig. 1 described.

Fig. 4 is a section of the spinning beam according to Fig. 3 with a fastening of the nozzle pot 16 according to FIG. 2 on the mounting tube 3.

The lower part of the cross section of one of that shown in Fig. 1 a different embodiment of the spinning beam according to the invention is shown in FIG. 5. With it a spinning pump 11 - 15 is installed, the upper side plate 10 is replaced by the side of the support plate 4 facing the spinning pump. In addition, the projection 17B of the lower housing plate 12A is annular here and provided with an internal thread 17A, while the nozzle pot 16A for Attachment to the approach 17B has an external thread.

To warp the mounting tube 3 by welding to the Avoiding vessel wall 2 is the connection shown in FIG. 5 between the mounting tube 3 and the lower housing bore 48 through a screwable connection 28 - 31 is established, which is further below in Connection with Fig. 10 is explained in more detail.

As a further difference, the embodiment of FIG. 5 has its own integrated heating on with a condensate collector 36 for the liquid Heating medium 25 and one provided in the condensate collector, in the immersion heating element immersed in liquid heating medium 26. The condensate collector lies parallel to the row of spinning stations 9.

The spinning station 9 of the embodiment of the illustrated in FIGS. 6 and 7 The invention is including its connection to the wall of the vessel 2 essentially identical to the embodiment described for FIG. 1. From The main difference between the figures described above is that that the vessel 2A has a substantially circular cross section. The Heating is also carried out here by an integrated in the spinning beam 1 Condensate collector 36 with immersing heating rods 26. To collect condensate to avoid between the spinning positions 9 are on both sides Condensate collector shown, essentially through individual breakthroughs for the saturated steam are connected to the vessel 2 (boiler) for which Condensate between the spinning stations 9 with each other and through smaller openings also connected to the inside of the vessel. In the variation 7, one of the lateral condensate collectors 36 has been dispensed with.

In which also has a vessel wall 2A with a circular cross section 8 corresponds to the embodiment the spinning pump as well as the connection between the mounting tube 3 and the vessel wall 2A of that of Fig. 5. The heating with the Heating medium 25 by heating rods 26 is in the lower part of the Boiler laid.

9 shows a side view of two spinning stations 9 and a section the melt distribution 7 with the branch lines 8 after omission half of the vessel wall 2 facing the viewer. The view corresponds essentially an embodiment corresponding to FIG. 6 and shows in particular the connections between the spinning stations 9 Condensate collector 36. The spinning stations 9 preferably have a fixed one Pitch 32. The bottom 33 of the vessel 2 can, however, with increased Heating steam pressure is preferably designed as a commercially available dished bottom be.

In Fig. 10 is the to avoid disturbing distortions Welded connections in the embodiments according to FIGS. 5 and 8 selected screw connection between the mounting tube 3 and the lower Housing bore 48 with - not shown - maintaining the described Connection between the connecting tube 5 and the upper housing bore 50 shown enlarged. The lower edge of the mounting tube 3 has here a collar 3A, against which one with the mounting tube 3 gas and pressure-tightly connected threaded ring 27 with mounting thread 30 abuts. He has a projecting at its radially inward end Ring collar on and must be connected to the 3 before connecting the mounting tube Support plate 4 or if the collar 3A is omitted before installing the Installation unit 49 are attached. In the housing bore 48 is a Pipe section 28 is welded to the one pointing into the vessel 2 End has an inner waistband. Both frets are dimensioned so that they are cover up.

Serves for the sealing connection of the mounting tube 3 to the vessel wall 2 a ring nut 29, which is screwed in with a collar on the supports the outer edge of the pipe section 28 and the collar of the threaded ring 27 after the interposition of a sealing ring 31 against the Inner collar of the pipe section 28 presses. Such a solution is special suitable for lower heating steam pressures.

Figures 11 to 13 show special developments of the invention, at which each have two spinning beams 1 together to form a double row are spun from spinning units containing 9.

In FIG. 11, two rectangular vessels 2 essentially corresponding to the embodiment according to FIG. 1 are combined with two rows of spinning stations 9 and two melt distributions 7, 8. The walls facing each other between the two vessels are omitted. In the lower area, however, between the rows of spinning stations 9 there is a possibility for a blowing channel 39 which supplies both rows of spinning stations.
The
Melt distribution lines 7 can also be replaced by a common line to which the stub lines 8 are connected. In the case of separate lines, however, separate melt streams, for example differently colored or treated melt streams, can be spun out.

A similarly structured combination with two here complete Boilers 2 with a round cross section are shown in FIG. 12. In both cases External heating of the heating space 38 is provided, with the heating steam supply 34 and the consignment of FIG. 11 of the execution acc. Fig. 1 correspond, while in Fig. 12 both boilers with a heating steam connection 46 and a connection 47 for the condensate are. The feed can be done in any way, for example by Connection of a heating steam supply with the heating steam connection 46 and the connection of a condensate drain to the condensate line 47 respectively.

13 finally shows in cross section a two-row spinning system, whose spinning positions 9 have, for example, a pitch 32 (FIG. 3), which corresponds to the length of a coil sleeve 44. The spinning positions 9 correspond in the same way as the spinning beam 1 to the illustration in FIG. 11. Here, too, the vessel is heated by external heating. Below of the common boiler are two from a blowing chamber each 40A, 40B blow boxes 41 supplied with blowing air and two spinning chutes 42 provided while the filament sets 43 on bobbin tubes 44 to be wound into coils 45. For example, are in the rows arranged ten spinning stations, so it is possible to 52 winding spindles use, on which ten coil sleeves 44 pushed one behind the other and can be wound together. The contact roller for the drive the coils 45 on the coil circumference are shown schematically and with 53 designated.

13 schematically shows a spinning system for a godetless Comb mill. However, should trigger devices, such as godets for Manufacture of fully stretched threads (FOY) are provided for this use case preferably all godet axes parallel to the Axes of the winding spindles 52 and in the longitudinal direction of the parallel and Spinning positions 9 of the spinning beam 1 arranged one behind the other are provided.

REFERENCE SIGN LISTING

1

Spinning beam

2nd

Vessel, boiler, boiler wall

3rd

Assembly pipe, pipe section

4th

Support plate

5

Connecting pipe, pipe section

6

Mounting ring, flange

7

Melt feed line, distribution line

8th

Branch line

9

Spinning station

10th

Spinning pump, side plate

11

Spinning pump, housing plate, glasses plate

12th

Spinning pump, side plate

13

Pump gear, gear

14

Pump gear, gear

15

Pump drive shaft, drive shaft

16

Nozzle pot

17th

Thread, external thread

17A

Thread, internal thread

17B

head Start

18th

Pressure piston

19th

Mixing insert, static mixer

20th

Sealing membrane

21

Filter insert

22

Distribution plate

23

Melting room

24th

Spinneret plate

25th

Heating medium, condensate

26

Heating element, radiator

27

Threaded ring

28

Pipe section

29

Ring nut

30th

Mounting thread

31

poetry

32

Pitch

33

Bottom of the vessel

34

Heating medium supply

35

Condensate drain

36

Condensate collector

37

Double heating box

38

Boiler room

39

Blow channel

40

Blowing chamber

41

Blow box, cross air blowing

42

Spinning shaft

43

Filament family

44

Coil sleeve

45

Coil, winding

46

Connecting pipe

47

Condensate line

48

lower hole (penetration) of the vessel

49

Installation unit

50

upper (penetration) of the vessel

51

inner thread

52

poetry

53

Contact roller

54

head Start

121

head Start

Claims (29)

Spinning beam (1) for melt spinning chemical fibers, which is designed as a gas-tight vessel (2) which is penetrated by a plurality of vertical tubes (3/5), a nozzle pot (16) being fastened in each tube (3/5), which is closed at the bottom by a spinneret plate (24), and each nozzle pot (16) is connected to a melt feed line (7, 8) via a melt metering pump (10 to 15), with the characteristic features: In each tube (3, 5) a supporting plate (4) filling the cross section is fastened in its central area; the melt metering pump (10 to 15) is attached to the support plate (4); the nozzle pot (16) is attached below the support plate (4); the melt feed line (7, 8) is connected to a melt channel (8A) created in the support plate (4), and the melt channel (8A) is in pressure-tight connection with the nozzle pot (16) via the melt metering pump (10 to 15). Spinning beam (1) according to claim 1,
characterized in that the melt metering pump (10 to 15), viewed in the spinning direction, is arranged below the support plate (4). Spinning beam (1) according to claim 2,
characterized in that the nozzle cup (16) is connected to the melt metering pump (10 to 15) by a threaded (17) or bayonet connection, preferably being screwed to a pump plate (12) with a projection (17B). Spinning beam (1) according to claim 2,
characterized in that the nozzle cup (16) is fastened to the inner circumference of the tube (3) by a threaded connection (17) or a bayonet connection. Spinning beam (1) according to claim 3 or 4,
characterized in that the nozzle pot (16) comprises the spinneret plate (24) and, arranged above it, a distributor plate (22), a filter insert (21), a sealing membrane (20) and a pressure piston (18) which is axially movable in the nozzle pot (16) and loads it. Spinning beam (1) according to claim 5,
characterized in that A mixing insert, preferably a statically acting mixing element (19), is arranged in a central axial bore of the pressure piston (18). Spinning beam (1) according to claim 1,
characterized in that the melt metering pump (10 to 15), viewed in the spinning direction, is arranged above the support plate (4). Spinning beam (1) according to claim 7,
characterized in that the nozzle cup (16) is connected to the support plate by a threaded (17) or bayonet connection, preferably screwed to the support plate (4) with a projection (17B). Spinning beam (1) according to claim 7,
characterized in that the nozzle cup (16) is fastened to the inner circumference of the tube (3) by a threaded connection (17) or a bayonet connection. Spinning beam (1) according to claim 8 or 9,
characterized in that the spinning pot (16) comprises the spinneret plate (24) and arranged above it a distributor plate (22), a filter insert (21), a sealing membrane (20) and a pressure piston (18) which is axially movable in the nozzle pot (16) and loads it. Spinning beam (1) according to claim 10,
characterized in that A mixing insert, preferably a statically acting mixing element (19), is arranged in a central axial bore of the pressure piston (18). Spinning beam (1) according to at least one of claims 1 to 11,
characterized in that the drive shaft (15) of the melt metering pump (10 to 15) is axially parallel to the pipe axis and projects upwards over the edge of the pipe (5). Spinning beam (1) according to claim 12, in conjunction with at least one of claims 2 to 6,
characterized in that the drive shaft (15) of the melt metering pump (10 to 15) penetrates the support plate (4) in the axial direction. Spinning beam (1) according to at least one of claims 1 to 13,
characterized in that the melt feed line (7, 8) is a distributor line (7) which is arranged in the spinning beam (1) perpendicular to and next to the tubes (3/5) and that the melt channel (8A) created in the support plate (4) is in each case by one Branch line (8) is connected to the distribution line (7). Spinning beam (1) according to at least one of claims 1 to 13,
characterized in that the melt feed line (7, 8) in the spinning beam (1) is branched into a plurality of branch lines of the same length, each of which is connected to a melt channel (8A) arranged in a support plate (4). Spinning beam (1) according to claim 14,
characterized in that the distributor line (7) is higher than the inlet of the stub line (8) into the support plate (4), the stub line (8) being laid with a slope between the distributor line (7) and the support plate (4). Spinning beam (1) according to at least one of claims 1 to 16,
characterized in that the spinning beam (1) is a vessel (2) with a circular cylindrical cross-section with bottoms closed at the end, preferably bobbin bottoms. Spinning beam (1) according to at least one of claims 1 to 16,
characterized in that the spinning beam (1) has a substantially rectangular cross-section and is closed gas-tight on both ends. Spinning beam (1) according to claim 17 or 18,
characterized in that the distributor line (7) of the melt feed line (7, 8) is passed gas-tight through one of the end faces of the spinning beam (1). Spinning beam (1) according to claim 1,
characterized in that the vertical tubes (3, 5) on the penetrations of the vessel (2) are welded directly or indirectly gas and pressure-tight at their ends on the outer circumference. Spinning beam (1) according to at least one of claims 1 to 20,
characterized in that Each vertical tube consists of two tube sections (3, 5), each of which is placed coaxially on the top and bottom of the support plate (4) and connected to it in a gastight and pressure-tight manner. Spinning beam (1) according to claim 20 and 21,
characterized in that the lower pipe section (assembly tube (3)) is welded to the wall of the vessel (2), that in the upper bore of the vessel wall (2) a mounting ring (6), the inner diameter of which with little assembly play the outer diameter of the upper tube section (connecting tube (5 )) corresponds to, inserted, pushed onto the upper pipe section (connecting pipe (5)) and welded to the periphery of the vessel wall (2) on the one hand and the upper end of the upper pipe section (5) on the other hand. Spinning beam (1) according to claim 20 and 21,
characterized in that In each case a mounting ring (28) is welded into the lower bore of the vessel wall (2), which has a radially inwardly directed sealing collar at its end reaching into the vessel (2), that on the free end of the lower tube section (mounting tube (3) ) before assembly, a threaded ring (27) with an external thread (30) is attached and gas-tightly connected to it, that the threaded ring (27) has a further sealing collar at its rear end, which cooperates with the sealing collar of the mounting ring (28) and with the help a ring nut (29) guided in the mounting ring (28) with little play and a sealing ring (31) placed between the sealing collars can be pressed in a sealing manner against the sealing collar of the mounting ring (28). Spinning beam (1) according to one of claims 1 to 23,
characterized in that for heating the melt-carrying components, such as the melt feed line (7, 8), melt metering pump (10 to 15), support plate (4), nozzle pot (16), by means of a heating medium (25) present as saturated steam, a feed line (34) for the heating medium steam and a Discharge (35) for the resulting condensate are connected to the vessel (2) (Fig. 1). Spinning beam (1) according to one of claims 1 to 23,
characterized in that for heating the melt-carrying components, such as the melt feed line (7, 8), melt metering pump (10 to 15), support plate (4), nozzle pot (16), by means of a heating medium (25) which is present as saturated steam and which extends in the longitudinal direction of the vessel (2) Condensate collection chamber (36) is provided, in which a heating device (26), preferably an electrical resistance heating device, is arranged (FIGS. 5 to 8). Spinning beam (1) according to claim 25,
characterized in that the condensate collection space is formed in the vessel (2) (Fig. 8). Spinning beam (1) according to claim 25,
characterized in that the condensate collection chamber (36) is lower than the spinneret plate (24) (FIGS. 5 to 7). Process for producing a spinning beam (1) according to at least one of Claims 1 to 26,
characterized in that first of all the pipes (3, 5) arranged one behind the other and receiving the melt-carrying components are connected to the melt distribution pipe (7) in a gastight and pressure-tight manner by spur lines (8) after the mounting of the support plates (4), that the structural unit formed therefrom is pushed into the vessel (2) which is closed on one side, that the vessel (2) is closed and the melt distribution line (7) is led through the bottom to the outside and that the free ends of the tubes (3, 5) on the intended penetrations of the vessel (2) on the tube circumference are welded to the vessel wall (2) directly or indirectly using a mounting ring (6) such that the tubes (3, 5 ) remain freely accessible in the axial direction for mounting the nozzle cup (16) and the pump drive (15). Spinning plant with a spinning beam (1) according to one of Claims 1 to 27,
characterized in that two spinning beams (1) are arranged in a back-to-back arrangement and symmetrical to a vertical plane of symmetry, that a cross-air blowing shaft (49A, 40B) is provided in the center and - seen in the spinning direction - below the spinning beam (1) and that the winding spindles (44) of the winding devices, on which the filament threads drawn off from the spinneret plates (24) are wound in the form of bobbins (45), and between the spinneret plates (24) and the bobbin
Spindles (44) optionally arranged thread take-off and delivery devices with their longitudinal axes parallel to one another and parallel to the rows of tubes (3, 5) arranged in the spinning beams (1).

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