THREAD PRODUCTION SYSTEM

Abstract

A thread production system has a workstation with, in each case one after another on a processing path, a melt-spinning device with multiple melt nozzles, a thread inlet section, an inlet godet roller pair located at the end of a thread inlet section, a thread drawing device with two hot godet roller pairs which are arranged on a drawing panel frame of the thread production system, and a one take-up reel. The free godet roller ends of a first hot godet roller pair of the thread drawing device on the processing path protrude into an identical first half space as free godet roller ends of the inlet godet roller pair. Here, a rotational axis of a first godet roller of the inlet godet roller pair on the processing path is oriented at an angle of from 0 to 45 with respect to the longitudinal orientation of the nozzle row.

Claims

1-5. (canceled)

6. A thread production system, comprising: a drawing panel frame; at least one workstation having, in each case one after another on a processing path, a melt-spinning device with a plurality of melt nozzles disposed in a longitudinal orientation of a nozzle row, a thread inlet section, an inlet godet roller pair with free godet roller ends and disposed at an end of said thread inlet section, a thread drawing device with at least two hot godet roller pairs disposed on said drawing panel frame of the thread production system, and at least one take-up reel, wherein a first hot godet roller pair of said at least two hot godet roller pairs is disposed on the processing path upstream of a second hot godet roller pair and has free godet roller ends which protrude into an identical first half space as said free godet roller ends of said inlet godet roller pair, wherein a rotational axis of a first godet roller of said inlet godet roller pair is oriented at an angle of from 0 to 45 with respect to the longitudinal orientation of said nozzle row, wherein said first godet roller is disposed on the processing path upstream of a second godet roller of said inlet godet roller pair; a relaxing frame disposed on the processing path downstream of said drawing panel frame; and a heated relaxing godet roller pair disposed on said relaxing frame, wherein said drawing panel frame and said relaxing frame have a passage formed therebetween, and wherein said heated relaxing godet roller pair have free ends protruding into a second half space lying opposite the first half space.

7. The thread production system according to claim 6, wherein at least two of said hot godet roller pairs are disposed directly one after another on the processing path and are disposed such that their said free godet roller ends protrude into said first and second half spaces lying opposite one another.

8. The thread production system according to claim 7, wherein all of said hot godet roller pairs disposed on said drawing panel frame are each disposed such that their respective said free godet roller ends protrude from said hot godet roller pairs, which are disposed directly one after another on the processing path, into said first and second half spaces lying opposite one another.

9. The thread production system according to claim 7, wherein only said free godet roller ends of an uppermost hot godet roller pair of said hot godet roller pairs of said drawing panel frame protrude into a same half space as said free godet roller ends of a hot godet roller pair arranged underneath said uppermost hot godet roller pair, wherein said uppermost hot godet roller pair protrudes through at least half of a godet roller casing length of one of its godet rollers over said free godet roller ends of said hot godet roller pair arranged underneath into a respective, identical half space.

10. The thread production system according to claim 6, further comprising a drive module, said inlet godet roller pair is attached to said drive module disposed under and at least partially in front of said thread inlet section.

Description

[0056] Especially preferred embodiments of the present invention, their structure, function and advantages are explained in more detail below with reference to figures, wherein:

[0057] FIG. 1 schematically shows a possible embodiment of a thread production system according to the invention with two workstations in a front view;

[0058] FIG. 2 schematically shows a workstation of the thread production system according to the invention from FIG. 1 in a front view;

[0059] FIG. 3 schematically shows a workstation of the thread production system according to the invention from FIGS. 1 and 2 in a side view; and

[0060] FIG. 4 schematically shows a workstation of the thread production system according to the invention from FIGS. 1 to 3 in a plan view;

[0061] In all figures, the illustrated embodiment of the invention or details thereof are not necessarily shown to scale.

[0062] FIG. 1 shows an embodiment of a thread production system 1 according to the invention with two workstations 2 arranged next to one another. Each of the workstations 2 has a melt-spinning device 3, a thread inlet section 4 adjoining it, an inlet godet roller pair 5 located at the end of the thread inlet section 4, a thread drawing device 6 and take-up reels 7 arranged downstream of the inlet godet roller pair 5 on a processing path of the thread production system 1.

[0063] Further embodiments of the thread production system 1 according to the invention (not shown here) with more than two workstations 2 or else just one single workstation 2 are easily possible.

[0064] In FIG. 1, as also in the other FIGS. 2 to 4, the melt-spinning devices 3 are shown in a greatly simplified and incomplete manner for the sake of clarity. In particular, extruders and filling devices are omitted in the figures. The melt nozzles 32 of the respective melt-spinning devices 3 are each arranged in a longitudinal direction L of a nozzle row 31.

[0065] For the further description of the embodiment of the invention shown here, it is expedient to consider only one individual workstation 2 of the thread production system 1.

[0066] FIGS. 2 to 4 each show a single workstation 2 of the thread production system 1 according to the invention from FIG. 1 in a front view (FIG. 2), a side view (FIG. 3) and a plan view (FIG. 4).

[0067] The filaments coming out of the melt nozzles 32 are cooled down as they come down and are combined by means of devices (not shown here) of the thread production system 1 to form threads which fall next to one another as a thread sheet into a thread inlet section 4 of the thread production system 1 and are pulled downwards at the bottom by the inlet godet roller pair 5 located at the lower end of the thread inlet section 4. The thread inlet section 4 runs along a vertical inlet section wall of the thread production system 1 arranged under the melt-spinning device 3.

[0068] The inlet godet roller pair 5 is attached to a drive module 10, which is located underneath the thread inlet section 4 and at least partially protrudes laterally from the retaining wall on which the thread inlet section 4 runs. A rotational axis of a first godet roller 51 of the inlet godet roller pair 5 is aligned parallel to the longitudinal orientation L of the nozzle row 31.

[0069] As can be seen in FIG. 2, the thread sheet can thus easily be routedby an operator standing in front of the thread inlet section 4around the first godet roller 51 of the inlet godet roller pair 5 on the processing path without the thread sheet having to be twisted around the processing direction.

[0070] Then, as can be seen in FIG. 3, the thread sheet is guided by the operator around hot godet roller pairs 61, 62, 63, 64 of the thread drawing device 6 which are fastened on top of one another on a drawing panel frame 60. The operator can get from the inlet godet roller pair 5 at the end of the thread inlet section 4 to a first hot godet roller pair 61 on the processing path via a passage 9.

[0071] The hot godet roller pairs 61, 62, 63, 64 are located in thermally insulating housings which are provided with slots 601 through which the thread sheet can run onto and off of the respective hot godet roller pairs 61, 62, 63, 64. The thermally insulating housings are shown in all figures in an open state.

[0072] Free godet roller ends 611 of the first hot godet roller pair 61 on the processing path protrude into the same first half space R1 as free godet roller ends 511 of the inlet godet roller pair 5. The thread sheet can thus be routed by the operator very advantageously from the inlet godet roller pair 5 around the first hot godet roller pair 61 of the thread drawing device 6.

[0073] Above the first hot godet roller pair 61 on the processing path, there is a second hot godet roller pair 62, the free godet roller ends of which protrude into a second half space R2 lying opposite the first half space R1. In FIG. 3, the second hot godet roller pair 62 is therefore also not visible. Only the rear side of the godet roller retaining wall, on which the drive ends of the godet rollers of the second hot godet roller pair 62 are fastened, can be seen.

[0074] In order to guide the thread sheet after winding the first hot godet roller pair 61 around the second hot godet roller pair 62, the thread sheet is guided through a slot 601 from the thermally insulating housing of the first hot godet roller pair 61 into the thermally insulating housing of the second hot godet roller pair 62. The operator can walk around the drawing panel frame 60 and then guide the thread sheet around the second hot godet roller pair 62. Then the thread sheet can be wound from there and in the same way around a third hot godet roller pair 63 above the second hot godet roller pair 62.

[0075] In the embodiment shown, the first three hot godet roller pairs 61, 62, 63 on the processing path that are arranged on the drawing panel frame 60 are arranged in each case in such a way that their free godet roller ends 611, 631 protrude from the hot godet roller pairs 61, 62, 63 arranged directly one after the other on the processing path into half spaces R1, R2 lying opposite one another.

[0076] In the embodiment of the thread production system 1 shown only by way of example, the drawing panel frame 60 has an uppermost hot godet roller pair 64, which protrudes into the same half space R1 as free godet roller ends 631 of a hot godet roller pair 63 arranged underneath.

[0077] The operator can transfer the thread sheet either from the third hot godet roller pair 63 directly to a heated relaxing godet roller pair 8 arranged on a separate relaxing frame 80 or first wrap it again around the uppermost hot godet roller pair 64 of the drawing panel frame 60. As a result, by simply loading the thread sheet, the number of hot godet roller pairs 61, 62, 63, 64 used for drawing the threads can be increased by one or reduced by one. Thus, different types of threads can be produced on one and the same workstation 2 of the thread production system 1 according to the invention, without a changeover thereof being necessary for this purpose. The uppermost hot godet roller pair 64 can thus optionally be included in the thread production.

[0078] The uppermost hot godet roller pair 64 projects by at least half of a godet roller casing length of one of its godet rollers over the free godet roller ends 631 of the hot godet roller pair 63 arranged underneath into the respective, identical half space R1. As a result the thread sheet, after running off from the free godet roller ends 631 of the third godet roller pair 63 close to the driving ends of the optional uppermost hot godet roller pair 64 can run onto the uppermost hot godet roller pair 64.

[0079] On the processing path to the hot godet roller pairs 61, 62, 63, 64 of the drawing panel frame 60, the thread sheet then continues to run over the heated relaxing godet roller pair 8, which is fastened to the separate relaxing frame 80 in the exemplary embodiment of the invention shown in FIGS. 1 to 4.

[0080] Free ends 81 of the relaxing godet roller pair 8 protrude into a second half space R2 lying opposite the first half space R1. In other words, the free ends 81 of the relaxing godet roller pair 8 and the free ends 51 of the inlet godet roller pair 5 protrude in spatial direction regions lying opposite one another and are thus easily reached by the operator from the passage 9 formed between the relaxing frame 80 and the drawing panel frame 60. The operator can route the thread sheet from the third hot godet roller pair 63 and as well as from the uppermost hot godet roller pair 64 through the passage 9 to the relaxing godet roller pair 8.

[0081] The horizontal and vertical offset between a thread outlet from the third hot godet roller pair 63 and a thread outlet from the uppermost hot godet roller pair 64 does not cause any significant difference for a thread inlet on the relaxing godet roller pair 8, since the inlet angles are virtually the same in both cases because of a sufficiently large distance due to the passage 9 between the relaxing frame 80 and the drawing panel frame 60.

[0082] In the exemplary embodiment shown, two take-up reels 7 are located below the relaxing frame 80. After passing through the relaxing godet roller pair 8, the thread sheet is singulated into individual threads and these are wound onto the take-up reels 7.

[0083] As a result, the embodiment shown in FIGS. 1 to 4 represents a compact thread production system 1 which is easily accessible for a thread change and in which the thread sheet is not twisted in its width orientation either in the case of a thread change or in the course of the thread drawing process, apart from the slight twists which are due to the necessary oblique arrangement of a single godet roller within a godet roller pair.