EP0828017B1 - Spinning beam - Google Patents

Description

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

Melt spinning devices for spinning Chemical fibers with the arrangement of 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 - in different versions known. All or most of the Known spinning devices are technically complex executed at least approximately the same Operating conditions on the same program to reach operated spinning positions. This Efforts are necessary and also common to to produce high quality multifilament threads. This also means that the maintenance required is high.

Through the aforementioned DE 33 43 714 A1 became a facility for double-sided continuous Spinning of chemical fibers known to be a double-sided Has spinning block. This spinning block encloses a closed, heated construction component, into which this penetrating, vertical and pipes aligned in series are used, each consisting of a filter and a spinneret plate existing spinning units are housed. In the mentioned spinning block are melt dosing pumps (Metering gear pumps) housed over Distribution lines from a melting extruder with Spinning melt are supplied and this to the Promote spinning stations. With these melt dosing pumps however, only the connections protrude for the part containing the spinning melt in the heated Construction component (vessel) into it.

The closed vessel is heated by means of a DE 33 43 714 A1 mentioned in the introduction referred to as diathermic, by electrical Resistance heating elements heated, in an under containing sump provided to the spinneret units Oil. However, only those in are heated the closed interior of the spinning block Parts.

Also by DE 33 43 mentioned at the beginning 714 A1 known construction has significant disadvantages on. The construction component comparable to a spinning beam shows a very rugged, only very complex to manufacture. In addition, how already mentioned, the melt dosing pumps mentioned in the thermal insulation and only partially inside of the closed vessel. They are therefore only partial heated.

A single spinning station is described in U.S. Patent No. 5,051,088 shown that one of the vertical tubes of the spinning beam according to DE 33 43 714 A1 corresponds in their function. This spinning station consists of essentially of a solid cylindrical core, which in a lower cylindrical recess receives a nozzle pot. Radially opens into the cylindrical core the melt feed line. Opposite the Melt feed line, the cylindrical core has a recess in which the melt metering pump can be used with part of its length. in the When assembled, the cylindrical core is inserted into a tube that surrounds it along its entire length. On the side of the melt feed line this tube has an approximately half-length longitudinal slot, so that Pipe and cylindrical core even when the melt feed line is connected in Can be pulled apart longitudinally. The opposite Melt dosing pump, however, is located on part of its length in the already mentioned recess of the cylindrical core, with the rest of the part their length, however, in a branch of the pipe. In addition, the The drive shaft of the metering pump is led out of the branch pipe on the side. When dismantling, the drive of the melt metering pump must first be released then the entire melt metering pump must be in the radial direction the cylindrical core and the tube are removed; only then is one The pipe jacket and cylindrical core can be pulled apart. Are therefore several of these spinning stations in a row arranged in a spinning beam, there is considerable disassembly work that is time consuming.

For heating are in this prior art spinning station in the tubular jacket Resistance heating elements are provided. This cannot guarantee that within a spinning beam all spinning stations with the same intensity be heated. U.S. Patent 5,051,088 also contains no reference on how this known spinning station can be installed in a spinning beam is designed as a gas-tight vessel and of a plurality of such Spinning stations is permeated. Only one attachment of the is mentioned outer tube jacket on a vertical plate with the help of ribs by stick out of the pipe jacket.

The invention is based on the object in particular for the manufacture and for Operation and maintenance of the spinning stations required Reduce effort and for all spinning positions of the Spin beam equal production conditions too to reach. This object is achieved by solved the features of claim 1.

The advantages of the spinning beam according to claim 1 are in an even heating of all melt-carrying components for all spinning positions as well good accessibility of the components to be serviced with melt dosing pump, pump drive and Nozzle pack. In addition, there are advantageous Solutions for the assembly and installation of prefabricated Assemblies in the enclosing the spinning stations Vessel.

Advantageous embodiments of the invention are shown in the dependent claims and in the Drawings explained in more detail.

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 feed 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 line is a tubular distributor line, which is sealingly connected to the bottom of the boiler or vessel through which it passes, 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 line can also be designed so that the distribution line in the spinning beam is branched into a plurality of stub lines of the same length and preferably the same pressure gradient, each of which is 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 the one that receives the gears Glasses plate. There is a possibility by Removal upwards or alternatively after unscrewing of the nozzle pot the spinning pump for example Cleaning or replacing parts reinstall.

According to the invention, the nozzle plate, the filter insert, the distributor plate and the sealing membrane load-bearing pressure piston Nozzle pot on the spinning pump attached to the support plate or hung from the support plate itself. For this can the bottom wall of the lower spinning pump plate on the bottom one with one Have threaded projection. The upper The edge of the nozzle pot is with a counter thread provided so that the nozzle pot with the spinning pump can be screwed. In doing so, the lead be annular and have an internal thread or a circular cylindrical envelope with an external thread to have. In a central bore of the pressure piston can preferably be used to mix the the melt leaving the spinning pump a static any mixing insert must be used. More preferred Forms of attachment are a bayonet lock or a threaded connection with the Nozzle cup receiving vertical pipe.

For the receptacle according to the invention the heating medium becomes smooth, as little as possible jagged Form sought. The basic form the cross section is essentially rectangular or circular be decisive, whereby it can be decisive that as Starting material for a circular cylindrical housing a large selection of pipes of different types Diameter, wall thickness, etc. is available, while a rectangular cross section benefits the Can have design. In any case, the required gas and pressure tight connection between the vessel wall and the spinning positions or the the ends of the spinning tube sections be produced directly or indirectly by welding.

For the production of the spinning beam according to the invention can be done in such a way that - if necessary with a suitable, the exact location and the dimensional accuracy the arrangement of the individual parts of the spinning stations and of the mounting device ensuring the melt feed - First put together the spinning positions and spatially connected to the melt distribution line be that in the previously with the vertical Pipe receiving or their locations Marking penetration holes provided The open-sided vessel is inserted as a structural unit can be.

It should be noted that the length of the assembled spinning positions must be smaller than the height of the rectangular tube or in which the spinning positions tangent planes of the cauldron with a circular pipe cross-section.

In both cases, after reaching the installation positions the entire built-in part with the lower ones Ends of the pipes (assembly pipes) are lowered so that the ends in the holes provided of the vessel inserted and connected to the housing can be. After that, with appropriate Middle the upper ends of the pipes (connecting pipes) be connected to the vessel wall in a gastight and pressure-tight manner.

So with a preferred form of training the invention this connection are made first by the bottom of the mounting tube after insertion, directly with the vessel wall is welded. Then the connecting pipe with connected to the spinning beam housing, for example, by inserting one with a into the upper housing bore Pipe attachment provided mounting ring, the inside diameter the outside diameter of the connecting pipe with little assembly play, first inserted loosely and over the connecting pipe is pushed. After that, for example, first the pipe neck of the mounting ring to fix its Position with the housing and then with the the upper edge of the connecting tube are welded (Claim 22).

In order to have one in the entire nozzle pot The aim is to maintain a constant temperature that the necessary gap between the mounting tube and Is as narrow as possible. Therefore, to be a tight and even gap due to the welding of the mounting tube with the wall of the vessel endanger another way of making a gas and pressure tight connection between the Mounting tube and the tube wall specified in claim 23. It results, for example, from the fact that even before the assembly part is inserted into the lower holes to accommodate the spinning positions Mounting rings are welded to their in ends reaching the vessel radially inwards have directed sealing collars. With the free ends of the Assembly tubes can be pushed on before assembly and connected gastight to the mounting tube, Threaded rings with external thread be provided, also at their in the vessel pointing ends one with the sealing collar of the mounting tube have interacting sealing collar. Through ring nuts that are on the outer edges the welded mounting rings with collars support and are guided in the assembly rings, then the threaded rings of the assembly tubes with their sealing collars moved radially outwards and by inserting between the sealing collars Sealing rings sealing against the sealing collars of the assembly tubes be pressed.

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 lying outside the spinning beam can be used for this purpose, as can independent individual heaters integrated in 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.

1 shows the first embodiment Cross-section of a spinning beam with a rectangular cross-section 1 with the melt feed line (formed from the distribution line 7 and the branch line 8), spinning station 9 and heating.

The central part of the spinning station 9 is a circular cylindrical one Support plate 4, from its lower edge Mounting tube 3 pushed on as the lower tube section of the vertical tube and gas and pressure-tight, for example by welding, is attached. Within the mounting tube 3 is on the Underside of the support plate 4 one from an upper side plate 10, one receiving the gears 13, 14 Housing plate 11 (glasses plate) and a lower side plate 12 and from above through a hole in the support plate 4 to the gear 13 drive shaft 15 existing melt dosing pump (spinning pump) preferably releasably attached (not shown). To supply the spinning pump with melt is in the support plate 4 one of them Scope of the melt channel guided to the spinning pump inlet 8A provided that with a stub 8 with the distribution line 7 connected is.

It should be pointed out here that with the chosen Execution of the spinning pump whose inlet outside the support plate axis and the selected representation the path of the melt and not the actual one Allocations can be recognized. The representation differs therefore depending on the real situation.

The lower side plate 12 of the spinning pump has one provided with an external thread 17 central projection 121 with which a nozzle pot 16 is screwed. In this are shown at the Execution - viewed from the bottom up - the Spinneret plate 24, a distributor plate 22, the filter insert 21, and a sealing membrane 20 and one stressing pressure piston 18 housed. In a centric one Bore of the pressure piston 18 is also a Mixer, for example a static mixing element 19, used.

Extends from the upper edge of the support plate 4 a gas-tight and pressure-tight connection upper tube section, which is referred to as connecting tube 5 upwards and essentially up to one to the lower hole 48 conaxial bore 50 of the vessel wall of vessel 2, the one has a slightly larger diameter than the lower hole 48.

When designing and assembling the several Spinning stations 9 and their connection with the Distribution line 7 existing installation unit 49 according to Fig. 9 is to be ensured that the cross section of a the installation unit 49 envelopes in the free cross section of vessel 2 (boiler, boiler). The necessary Length of the mounting tube 3 results from the Space required by spinning pump 10-15 and nozzle pot 16, which is why the length of the connecting tube 5 to a Insert the installation unit 49 into the vessel 2 limit is to be made possible. After insertion and adjusting the installation unit 49 these are lowered so far overall that the Mounting tubes 3 with one for producing one Welded joint of sufficient length over the Protruding edges of the lower bores 48, so that the welds are made on the circumference of the vertical tubes can be. Therefore, the connecting pipes end 5 some distance away from those with lower coaxial upper housing bores 50, so that simple welding is not possible.

1 is a way of manufacturing a connection between the individual connecting pipe 5 and the edge of the upper housing bore 50 shown. For this purpose, first a upper bore 50 suitable, with a tube extension 6A provided mounting ring 6 (flange), the inside diameter the outer diameter of the connecting pipe 5 with little assembly play, in the bore 50 inserted and so on the connecting pipe 5 pushed that its upper edge in protrudes the tube extension 6A. Then the pipe neck 6A first with the vessel wall and then with the upper edge of the connecting tube 5 am Welded perimeter.

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

2 shows a detail of the spinning beam 1 Fig. 1 shows a different attachment of the nozzle pot 16. Here is the mounting tube 3 in the axial direction except for a slightly larger inner diameter and in the upper section, which extends to the lower side plate 12 of the spinning pump is enough with one Provided internal thread 51 or a bayonet connection. With this thread 51 or Bejonett the Nozzle pot 16 with an external thread or its counterpart the bayonet connection and inserting a Sealing ring 52 screwed. Here is the melt seal due to the axial mobility of the sealing membrane 20 pressure piston 18 guaranteed.

Fig. 3 shows an alternative structure of the spinning station. Here, the support plate 4 has the underside Projection 41 with external thread 17 for attachment of the nozzle pot 16. The spinning pump is on the top the support plate 4 mounted and through the connecting tube 5 removable upwards. The Melt inlet channels 8A and the outlet channel are in the support plate 4 created according to this structure. The further assembly and assembly of the spinning beam 1 corresponds to that in the description of FIG. 1 described.

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

The lower part of the cross section of one of the in Fig. 1 shown different version of the 5 shows the spinning beam according to the invention a spinning pump 11 - 15 is installed, the upper one Side plate 10 by the one pointing to the spinning pump Side of the support plate 4 is replaced. In addition, the Approach 17B of the lower housing plate 12A here in a ring and provided with an internal thread 17A, while the nozzle pot 16A for attachment to the neck 17B has an external thread.

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

Another difference is the execution of the Fig. 5 own integrated heating with a Condensate collector 36 for the liquid heating medium 25 as well as one provided in the condensate collector, immersion heater immersed in the liquid heating medium 26. The condensate collector is parallel to Row of spinning positions 9.

The spinning station 9 shown in FIGS. 6 and 7 Implementation of the invention is inclusive of it Connection to the wall of the vessel 2 essentially identical to the embodiment described for FIG. 1. From the figures described above The main difference is that the Vessel 2A has a substantially circular cross section Has. The heating is also done here by a condensate collector integrated in the spinning beam 1 36 with immersing heating rods 26. To collect condensate to avoid between the spinning positions 9, are the condensate collectors shown on both sides, the essentially through single breakthroughs connected to vessel 2 (boiler) for saturated steam are for the condensate between the Spinning stations 9 with each other and through smaller openings also connected to the inside of the vessel. In the Modification according to Fig. 7 was on one of the side Condensate collector 36 dispensed with.

In which also a vessel wall 2A with a circular Cross-sectional embodiment of the invention 8 corresponds to the execution of the Spinning pump as well as the connection between the Mounting tube 3 and the vessel wall 2A of those of the Fig. 5. The heating with the heating medium 25 through Heating rods 26 is, however, in the lower part of the boiler relocated.

9 shows a side view of two spinning positions 9 and a section of the distribution line 7 with the branch lines 8 after omitting the to Viewer pointing half of the vessel wall. The View essentially corresponds to an execution 6 and shows in particular the between the spinning stations 9 provided connections of the condensate collector 36. The spinning positions 9 point preferably has a fixed pitch 32. The Bottom 33 of the vessel 2 can, however, with increased Heating steam pressure is preferred as a standard dished bottom be trained.

10 is to avoid disturbing Warpage due to welded joints in the Versions selected according to Figures 5 and 8 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 bottom of the Mounting tube 3 here has a collar 3A against which one connected to the mounting tube 3 in a gastight and pressure-tight manner Threaded ring 27 with mounting thread 30 abuts. He points at its radially inward end a projecting ring collar and must in front of Connection of the mounting tube 3 to the support plate 4 or if the collar 3A is left out before installing the Installation unit 49 are attached. In the housing bore 48 a pipe section 28 is welded in at its end pointing into the vessel 2 Has inside waistband. Both frets are dimensioned so that they overlap.

For sealing connection of the mounting tube 3 with the vessel wall 2 serves a ring nut 29, which itself when screwing in with a collar on the outer Edge of the pipe section 28 supports and the collar of the threaded ring 27 after interposing a sealing ring 31 against the inner collar of the Pipe section 28 presses. Such a solution is especially suitable for lower heating steam pressures.

Figures 11 to 13 show special developments of the invention, in each of which two spinning beams 1 together to form a double row of Spinning units 9 containing spinning beams assembled are.

In FIG. 11, two rectangular vessels 2 essentially corresponding to the embodiment according to FIG. 1 are combined with two rows of spinning positions 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 similar combination with two here however complete boilers 2 with a round cross-section shows Fig. 12. In both cases is an external heating of the boiler room 38 provided, the Heating steam supply 34 as well as the consumption of the Fig. 11 of the execution acc. Fig. 1 correspond while 12 both boilers with a heating steam connection 46 and a connection 47 for that Condensate are connected. The feed can in any way, for example by connection a heating steam supply with the heating steam connection 46 and the connection of a condensate drain done with the condensate line 47.

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

A spinning system is shown schematically in FIG. 13 for a goddess comb mill. Should however extraction devices such as godets for manufacturing ready drawn threads (FOY) are provided, so are preferably all for this application Galette axes parallel to the axes of the winding spindles 52 and in the longitudinal direction of the parallel and one behind the other arranged spinning stations 9 of the Spinning beam 1 is provided.

REFERENCE SIGN LISTING

1

Spinning beam

2nd

vessel

3rd

Mounting tube

4th

Support plate

5

Connecting pipe

6

Mounting ring, flange

7

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)

1. A spinning beam (1) for melt-spinning of man-made fibers which takes the form of a gas-tight container (2) penetrated by a plurality of vertical pipes, there being fastened in each pipe a spinneret pot (16) which is closed in a downward direction by a spinneret body (24), and each spinneret pot (16) being connected by a melt metering pump (10 to 15) to a melt supply line, having the characterizing features:

   a supporting plate (4) is fastened in the middle region of each pipe filling the cross section of said pipe;

   the melt metering pump (10 to 15) is fastened to the supporting plate (4);

   the spinneret pot (16) is fastened below the supporting plate (4);

   the melt supply line is connected to a melt channel (8A) installed in the supporting plate (4), and the melt channel (8A) is connected by the melt-metering pump (10 to 15) in a pressure-tight manner to the spinneret pot (16).
2. Spinning beam (1) according to claim 1, characterized in that the melt metering pump (10 to 15) is disposed - viewed in spinning direction - below the supporting plate (4).
3. Spinning beam (1) according to claim 2, characterized in that the spinneret pot (16) is connected to the melt metering pump (10 to 15) by a threaded (17) or bayonet joint, preferably screw-connected by a projection (17B) to a pump plate (12).
4. Spinning beam (1) according to claim 2, characterized in that the spinneret pot (16) is fastened by a threaded (17) or bayonet joint to the inner periphery of the pipe.
5. Spinning beam (1) according to claim 3 or 4, characterized in that the spinneret pot (16) comprises the spinneret body (24) and, above the latter, a distribution plate (22), a filter insert (21), a sealing diaphragm (20) and a pressure piston (18), which loads the sealing diaphragm and is axially movable in the spinneret pot (16).
6. Spinning beam (1) according to claim 5, characterized in that a mixing insert, preferably a statically acting mixing element (19), is disposed in a central axial bore of the pressure piston (18).
7. Spinning beam (1) according to claim 1, characterized in that the melt metering pump (10 to 15) is disposed - viewed in spinning direction - above the supporting plate (4).
8. Spinning beam (1) according to claim 7, characterized in that the spinneret pot (16) is connected to the supporting plate by a threaded (17) or bayonet joint, preferably screw-connected by a projection (41) to the supporting plate (4).
9. Spinning beam (1) according to claim 7, characterized in that the spinneret pot (16) is fastened by a threaded (17) or bayonet joint to the inner periphery of the pipe.
10. Spinning beam (1) according to claim 8 or 9, characterized in that the spinning pot (16) comprises the spinneret body (24) and, above the latter, a distribution plate (22), a filter insert (21), a sealing diaphragm (20) and a pressure piston (18), which loads the sealing diaphragm and is axially movable in the spinneret pot (16).
11. Spinning beam (1) according to claim 10, characterized in that a mixing insert, preferably a statically acting mixing element (19), is disposed in a central axial bore of the pressure piston (18).
12. 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) lies parallel relative to the pipe axis and projects up beyond the edge of the vertical pipe.
13. 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 supporting plate (4) in the axial direction.
14. Spinning beam (1) according to at least one of claims 1 to 13, characterized in that the melt supply line is a distribution line (7) which is disposed in the spinning beam (1) at right angles and adjacent to the vertical pipes and that the melt channel (8A) installed in the supporting plate (4) is connected by in each case one branch line (8) to the distribution line (7).
15. Spinning beam (1) according to at least one of claims 1 to 13, characterized in that the melt supply line in the spinning beam (1) is divided into a plurality of branch lines (8) of equal length, which are connected in each case to a melt channel (8A) installed in a supporting plate (4).
16. Spinning beam (1) according to claim 14, characterized in that the distribution line (7) is positioned higher than the inlet of the branch line (8) into the supporting plate (4), the branch line (8) being laid with a gradient between distribution line (7) and supporting plate (4).
17. Spinning beam (1) according to at least one of claims 1 to 16, characterized in that the spinning beam (1) is a kettle type container (2) having a circular-cylindrical cross section and bases closed at the end face, preferably dished boiler ends.
18. 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 in a gas-tight manner at both end faces.
19. Spinning beam (1) according to claim 17 or 18, characterized in that the distribution line (7) of the melt supply line extends in a gas-tight manner through one of the end faces of the spinning beam (1).
20. Spinning beam (1) according to claim 1, characterized in that the vertical pipes at the points where they penetrate the container (2) are welded in at their ends at the outer periphery directly or indirectly in a gas and pressure-tight manner.
21. Spinning beam (1) according to at least one of claims 1 to 20, characterized in that each vertical pipe comprises two pipe portions, namely a bottom and a top pipe portion, which are each mounted coaxially onto the top and underside of the supporting plate (4) and connected to the latter in a gas- and pressure-tight manner.
22. Spinning beam (1) according to claim (21), characterized in that the bottom pipe portion serves as an assembly pipe (3) and is welded to the wall of the container (2), that a mounting ring (6) having an inside diameter corresponding with a slight assembly clearance to the outside diameter of the top pipe portion serving as a connecting pipe (5), is inserted into the top hole of the container wall (2), slipped onto the connecting pipe (5) and welded at the periphery to the container wall (2), on the one hand, and the top end of the connecting pipe (5), on the other hand.
23. Spinning beam (1) according to claim 22, characterized in that a mounting ring (28), which at its end extending into the container (2) has a sealing collar directed radially inwards, is welded in each case into the bottom hole of the wall of the container (2), that prior to assembly a threaded ring (27) with external thread (30) is mounted onto the free end of the assembly pipe (3) and connected to the latter in a gas-tight manner, that the threaded ring (27) at its rear end has a further sealing collar, which cooperates with the sealing collar of the mounting ring (28) and is pressable sealingly against the sealing collar of the mounting ring (28) with the aid of a ring nut (29), which is guided with slight play in the mounting ring (28), and a sealing ring (31) inserted between the sealing collars.
24. Spinning beam (1) according to one of claims 1 to 23, characterized in that for heating the melt-carrying structural parts, such as melt supply line, melt metering pump (10 to 15), supporting plate (4), spinneret pot (16), by means of a heating medium (25) present in the form of saturated steam, a supply line (34) for the heating medium steam and an outlet (35) for the condensate which arises are connected to the container (2) (Fig. 1).
25. Spinning beam (1) according to one of claims 1 to 23, characterized in that for heating the melt-carrying structural parts, such as melt supply line, melt metering pump (10 to 15), supporting plate (4), spinneret pot (16), by means of a heating medium (25) present in the form of saturated steam, a condensate collecting chamber (36) extending in a longitudinal direction of the container (2) is provided, in which a heating device (26), preferably an electrical resistance heating device, is disposed (Figs. 5 to 8).
26. Spinning beam (1) according to claim 25, characterized in that the condensate-collecting chamber is formed in the container (2) (Fig. 8).
27. Spinning beam (1) according to claim 25, characterized in that the condensate-collecting chamber (36) is positioned lower than the spinneret body (24) (Figs. 5 to 7).
28. Method of manufacturing a spinning beam (1) according to at least one of claims 1 to 26, characterized in that first the vertical pipes, which are disposed in a row one behind the other and accommodate the melt-carrying structural parts, after installation of the supporting plates (4) are connected by branch lines (8) in a gas- and pressure-tight manner to the distribution line (7), that the structural unit thus formed is inserted into the container (2) which is closed at one end, that the container (2) is closed and the distribution line (7) is run out through the base and that the free ends of the vertical pipes at the intended penetration points of the container (2) are welded at the pipe periphery to the container wall directly or indirectly using a mounting ring (6) in such a way that the vertical pipes remain freely accessible in an axial direction for mounting the spinneret pot (16) and the pump drive (15).
29. Spinning installation having a spinning beam (1) according to one of claims 1 to 27, characterized in that two spinning beams (1) are arranged back to back and symmetrically relative to a vertical plane of symmetry, that a lateral ventilation shaft (49A, 40B) is provided centrally and - viewed in spinning direction - below the spinning beams (1) and that the bobbin cases (44) of the take-up devices, on which the filament yarns drawn off from the spinneret bodies (24) are wound in the form of bobbins (45), as well as the yarn take-off and delivery devices optionally disposed between the spinneret bodies (24) and the spool spindles (44) lie with their longitudinal axes parallel to one another and parallel to the rows of vertical pipes disposed in the spinning beams (1).

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