Silk thread production equipment

Abstract

The present invention relates to a silk thread production device having at least one working station, which successively includes, along a processing path, a melt spinning device having a plurality of melt nozzles longitudinally arranged along a nozzle row, a silk thread inlet section, a pair of inlet godet rollers provided at an end of the silk thread inlet section, a silk thread drafting device having at least two pairs of hot godet rollers arranged on a drafting panel frame of the silk thread production device, and at least one winding bobbin. Among them, the free godet roller ends of the first pair of hot godet rollers of the silk thread drafting device on the processing path protrude into a first half space that is the same as the free godet roller ends of the inlet godet roller pair. Herein, the rotation axis of the first godet roller arranged first in the row along the passing path of the inlet godet roller pair is aligned at an angle of 0° to 45° with respect to the longitudinal direction of this row of nozzles. According to the present invention, in the silk thread production device, a pair of heated slack godet rollers is arranged on a slack frame provided after the drafting panel frame along the processing path. Among them, an aisle is formed between the drafting panel frame and the slack frame, and the free ends of the pair of slack godet rollers protrude into a second half space opposite to the first half space.

Description

Technical Field

[0001] The present invention relates to a silk thread production device having at least one working station, which successively includes a melt spinning device having a plurality of melt nozzles longitudinally arranged along a nozzle row, a silk thread inlet section, a pair of inlet godet rollers provided at the end of the silk thread inlet section, a silk thread drafting device having at least two pairs of heated godet rollers arranged on a drafting panel frame of the silk thread production device, and at least one winding bobbin, wherein, on the processing path, the free godet roller ends of the first pair of heated godet rollers of the silk thread drafting device protrude into the same first half space as the free godet roller ends of the inlet godet roller pair, and wherein the rotational axis of the first godet roller of the inlet godet roller pair on the processing path is arranged at an angle of 0° to 45° with respect to the longitudinal direction of the nozzle row. Background Art

[0002] A silk thread production device for producing synthetic silk threads based on a melt spinning process has a melt spinning device including an extruder and a spinning head, and the spinning head in turn has a plurality of melt nozzles arranged in a row of nozzles. Hot plastic filaments are extruded from each melt nozzle.

[0003] The filaments formed by the melt nozzles usually pass through a chute and filament treatment during their fall, in which the filaments are gathered into a thread, for example, with oil. Then, the individual silk threads enter the silk thread inlet section, where they are combined into a ribbon-like silk thread group, and the initial width of the silk thread group corresponds to the longitudinal alignment of the nozzle row. The silk thread inlet section is usually formed by a vertical machine wall, hereinafter referred to as the inlet section wall, and the silk threads move in front of the machine wall until they reach a pair of inlet godet rollers located at the lower end of the silk thread inlet section.

[0004] The silk threads are pre-tensioned by this pair of inlet godet rollers. In addition, this pair of inlet godet rollers separates the melt spinning process from the subsequent silk thread drafting and winding at the silk thread production device.

[0005] The silk thread drafting device following this pair of inlet godet rollers on the processing path usually has several pairs of heated godet rollers. The godet rollers are usually driven by electric motors, and each godet roller protrudes from a limiting wall of the silk thread production device. With the help of these pairs of godet rollers, the silk threads are drawn and drafted. The silk thread drafting devices known from the prior art usually have an upper pair of godet rollers with less heating for silk thread relaxation.

[0006] After the silk threads pass through the silk thread drafting device, the silk threads are wound onto at least one winding bobbin.

[0007] The silk threads pass through most of the silk thread production device as a flat ribbon-like silk thread group guided on the godet rollers of the silk thread production device. Only after leaving the godet rollers can the silk threads be individually wound onto their respective winding bobbins.

[0008] In addition to the cylindrical guide wire sleeves, other cylindrical objects such as rollers, rollers and rods are also required in the silk production equipment to guide, deflect and support the strip-shaped silk sheets.

[0009] As is known, for example, from the published document DE19909073A1, the silk group is guided along the circumferential surface of the guide wire sleeves of a pair of guide wire rollers for drafting. At this time, the pair of guide wire rollers is wound by the silk group multiple times. During the process of the silk group rotating around the pair of guide wire rollers for multiple turns, the silk is heated by the heated guide wire rollers. Then, the silk group moves to the next pair of guide wire rollers with a higher rotational speed. The higher rotational speed generates the silk tension required for drafting. The area between two pairs of such guide wire rollers arranged successively on the processing path thus forms a drafting zone, in which the silk of the silk group is drafted.

[0010] According to the required silk properties, sometimes multiple drafting zones are provided between the pairs of heated guide wire rollers arranged successively on the processing path, in which the silk is gradually drafted. This means that more than three pairs of hot guide wire rollers can be used to draft the silk during silk production.

[0011] The pairs of hot guide wire rollers with different heating are usually located in an adiabatic housing, which has at least one slot through which the silk group can enter the guide wire sleeve and another slot through which the silk group can exit again.

[0012] The silk production equipment operating according to the melt spinning process usually has multiple workstations, each of which has a melt spinning device, a silk inlet section downstream of the melt spinning device, a silk drafting device downstream of the silk inlet section, and a winding device downstream of the silk drafting device.

[0013] Such a general device for silk production is disclosed, for example, in the published document DE102010015215A1. Here, a drawing-off device with several driven guide wire rollers and a winding device with several winding positions are provided for each spinning position, and they together form a workstation. Adjacent workstations can be driven independently of each other, and each workstation has its own power supply. In addition, the drawing-off device and the winding device are designed to be interchangeable independently of each other, which ensures the rapid and safe commissioning of the drawing-off and winding devices of individual workstations.

[0014] In the case of a silk break, the silk production at the relevant workstation must be interrupted. Then, it is the task of the operator to thread the silk again in the processing direction through or past the individual components of the entire silk production equipment before silk production can be started again.

[0015] Even in the case of troubleshooting, maintenance, cleaning of the guide wire sleeves or any initial commissioning or re-commissioning after conversion, the operator must thread the silk through the entire silk production equipment before starting silk production again.

[0016] Accordingly, efforts have been made to improve the accessibility and interchangeability of the individual components of the workstations of a filament production device, for example in order to facilitate maintenance and / or cleaning work or to increase the flexibility of the filament production device.

[0017] DE102014017620A1 discloses a device for drawing and stretching synthetic filaments, which has several godet roller units held on a support wall. To make it easier to clean the godet roller sleeves while accompanying the most compact godet roller arrangement, at least one godet roller sleeve can be axially moved on the support wall so that it can be transferred to a maintenance position protruding from an adjacent godet roller sleeve.

[0018] The published document DE102017011183A1 discloses a device for drawing, stretching and winding a synthetic filament sheet, which has a plurality of godet rollers arranged on a godet roller wall. The godet roller wall is interchangeably fixed within a vertical opening of a machine frame, which means that the entire assembly consisting of a plurality of godet rollers can be replaced all at once.

[0019] DE102018001274A1 discloses a drawing device for guiding a group of filaments during the melt spinning process. The godet roller for the drawing device is designed as a plug-in unit and can be held in an insertion interface on a stop wall.

[0020] The published document DE102004039510A1 discloses a device for melt spinning, drawing, processing and winding a plurality of synthetic filaments. An example of such a device has a spinneret device, which has eight spinnerets arranged side by side on a spinning box. A cooling device with a cooling shaft is assigned to the spinneret. Below is a preparation device, in which, during the preparation of the filament guidance, the filament groups extruded from the spinnerets are combined to form a single thread. Below the preparation device there are two drawing components, each of which has a godet roller and a freely rotatable overflow roller. In the processing direction, after the preparation device there is a drawing zone with two drawing godet roller groups. After drawing, the filaments are wound onto a bobbin by a winding device.

[0021] Document DE10120551A1 describes a device for melt spinning and winding synthetic filaments. The device has a frame on which a spinning device is arranged. The spinning device has a spinneret head and a spinneret arranged below the spinneret head. The filament bundle produced by the spinneret passes through a cooling device and is then gathered into a filament by a preparation device. A conveying mechanism is arranged below the spinning device, which is designed as a godet roller unit with a driven godet roller and an undriven overflow godet roller. In one example, several processing modules are arranged after the conveying mechanism, and they are arranged on a module accommodating device. Each processing module contains a pair of godet rollers. After the processing module, the filament travels to another conveying mechanism, which is diagonally opposed to the first conveying mechanism. The other conveying mechanism consists of a heated godet roller and an unheated godet roller, both of which have a power mechanism. The other conveying mechanism can achieve the relaxation of the filament shrinkage treatment before the filament is wound by a winding device.

[0022] Document DE102015016800A1 also discloses a device for melt spinning, drawing, relaxing and winding synthetic filaments. The device includes a spinning device having four spinnerets, and the spinnerets are arranged on a spinning box. The filament groups extruded from the respective spinnerets pass through a cooling shaft and are then bundled into a thread on a collecting godet. Then, the filaments are spaced apart by a comb-shaped godet, and then the filaments are converged on the first drawing godet roller pair of the drawing device by the comb-shaped godet. The first triggering godet roller pair has two triggering godet rollers. The triggering device has a second triggering godet roller pair including two second triggering godet rollers. The filament comes from the last drawing godet roller to a first drawing godet roller, followed by another drawing godet roller stacked one above the other. The drawing godet rollers are heated and arranged in a heating box. The drawing godet rollers are only simply wound by the filament. Following the last drawing godet roller in the processing direction is a heated relaxation godet roller pair that also has two heated relaxation godet rollers. The device also has a winding device for winding the filament onto a winding bobbin. The rotational axes of the first drawing godet roller pair of the drawing device are aligned in the longitudinal direction of the nozzle row having four spinnerets.

[0023] In most cases, the accessibility of individual components of a filament production device can only be improved at the expense of the compact structure of the entire device, especially for cleaning or maintaining the device. In order to be able to achieve an accessible arrangement of the individual components of the filament production device in a current filament production device, the filament drafting device is usually arranged transversely next to the filament inlet section, such that the filament is in the direction of the same half-space as the free end of the guide rollers of the filament drafting device in front of the inlet section where the filament moves downward toward the pair of inlet guide rollers. Therefore, in order to guide the filament group from the filament inlet section to the guide rollers of the filament drafting device located next to it, it is necessary to rotate the filament group by 90° in terms of the width alignment at the end of the filament inlet section in a current filament production device. This is achieved, for example, by a pair of inlet guide rollers protruding vertically from the filament inlet section. This side-by-side arrangement of the filament inlet section and the filament drafting device results in a very wide device, where the operator can only reach all the filament guides from one side. The large height and width dimensions make the operation and work on the device difficult. Summary of the Invention

[0024] Accordingly, it is an object of the present invention to provide a compact filament production device of the type described above, which has improved feasibility for filament replacement and filament cleaning and maintenance.

[0025] According to the present invention, this object is achieved by a filament production device having at least one station, which successively includes, along a processing path, a melt spinning device having a plurality of melt nozzles arranged longitudinally along a nozzle row, a filament inlet section, a pair of inlet guide rollers provided at the end of the filament inlet section, a filament drafting device having at least two pairs of heated guide rollers arranged on a drafting panel frame of the filament production device, and at least one winding bobbin, wherein the free guide roller ends of the first pair of heated guide rollers of the filament drafting device in the processing path protrude into the same first half-space as the free guide roller ends of the pair of inlet guide rollers, and wherein the rotational axis of the first guide roller of the pair of inlet guide rollers in the processing path is oriented at an angle of 0° to 45° with respect to the longitudinal direction of the nozzle row, and wherein a pair of heated slack guide rollers is arranged on a slack frame downstream of the drafting panel frame in the processing path, an aisle is formed between the drafting panel frame and the slack frame, and the free ends of the pair of slack guide rollers protrude into a second half-space opposite to the first half-space.

[0026] The advantageous arrangement and orientation of the pair of inlet guide rollers improve the feasibility of filament replacement while maintaining the compact design of the entire station.

[0027] In the present invention, the filament group moves onto the inlet godet pair without being twisted by more than 45° in its width orientation. Particularly preferably, the filament group produced by the melt nozzle is not twisted at all when it reaches the first godet of the inlet godet pair. Thus, the operator facing the filament inlet can monitor the downwardly advancing melt-spun filaments and the winding around the godets of the inlet godet pair, and guide the filaments onto the inlet godet pair without having to turn around or leave his position. He can also easily check whether the filament group is moving correctly onto the inlet godet pair, for example without vibration.

[0028] The filament group produced by the melt nozzles arranged longitudinally in the nozzle row can be picked up by the operator, for example with a suction gun, and first guided around the godets of the inlet godet pair located at the end of the filament inlet. In this case, the rotational axis of the first godet in the inlet godet pair is arranged substantially parallel to the longitudinal direction of the nozzle row arranged side by side with respect to the melt nozzle on the processing path, i.e., oriented at an angle of 0° to 45°. As a result, during the first winding onto the inlet godet pair, the filament group extruded at the melt nozzle is twisted by a maximum of 45°. In this case, the filament group is preferably rotated by less than 30°, and in a particularly preferred manner is not rotated at all, since the rotational axis of the first godet in the inlet godet pair is oriented at an angle of less than 30° with respect to the longitudinal direction of the nozzle row or is parallel thereto.

[0029] On the processing path to the inlet godet pair, the filament group is then wound around at least two hot godet pairs arranged on the drafting panel frame of the station. The free godet end of the first hot godet pair of the filament drafting device projects into the same half-space as the free godet end of the inlet godet pair. Thus, the filament group enters the filament drafting device of the filament production equipment, and its width orientation is not twisted by more than a total of 45° after being extruded from the melt nozzle. Preferably, when entering the filament drafting device, the filament group is rotated by less than 30°, and particularly preferably is not rotated at all.

[0030] To make filament guiding and / or filament replacement easier, it is advantageous that the filament group extruded at the melt nozzle during processing is twisted as little as possible or not at all in terms of its width orientation in a compact and easily accessible filament production equipment.

[0031] This is achieved in the present invention in that a heated slack godet pair is arranged on a slack frame (arranged separately from the drafting panel frame on the processing path), wherein an aisle is formed between the drafting panel frame and the slack frame, and wherein the free ends of the slack godet pair project into a second half-space opposite the first half-space.

[0032] The thread drawing device has additional heated relaxation godet roller pairs, which are not arranged on the drawing panel frame but on a separate relaxation frame arranged downstream of the drawing panel frame in the processing path.

[0033] There is an aisle between the relaxation frame and the drawing panel frame. The operator can stand on this aisle and turn around to walk along the aisle. The operator can approach the drawing panel frame and the relaxation frame from this aisle, so that the operator can particularly advantageously change the thread on the respective godet roller pairs of the drawing panel frame and the relaxation frame from the aisle.

[0034] After the operator has wound the thread group around the inlet godet roller pair located at the end of the thread inlet section, the operator can now guide the thread group around at least two heated godet roller pairs of the drawing panel frame one by one in sequence, and the at least two heated godet roller pairs are adjacent to the inlet godet roller pair in the processing path. The aisle between the drawing panel frame and the relaxation frame provides enough space for the operator to be able to guide the thread group comfortably and safely along the processing path.

[0035] The thread group can be guided from the last heated godet roller pair of the drawing panel frame over the aisle to the relaxation godet roller pair.

[0036] Since the free ends of the relaxation godet roller pair protrude into the second half space opposite to the first half space, the operator can directly approach the free ends of the relaxation godet roller pair from the aisle, so that the thread group can be easily and safely wound around the relaxation godet roller pair.

[0037] By connecting the relaxation godet roller pair to a separate relaxation frame, compared with the case where all godet roller pairs are arranged on the same frame, the structural height of the relaxation frame and the drawing panel frame is lower, which further improves the accessibility and usability of the heated godet roller pair and the relaxation godet roller pair.

[0038] In addition, maintenance, cleaning and repair work on the heated godet roller pair and the relaxation godet roller pair can be carried out safely and conveniently from the aisle side between the drawing panel frame and the relaxation frame.

[0039] Since the free godet roller ends of the heated relaxation godet roller pair protrude into the second half space opposite to the first half space, the drawing panel frame and the relaxation frame can be arranged on the work station in an overall compact layout form.

[0040] In addition to the relaxation godet roller pair, other devices for thread processing such as at least one additional godet roller, roller, winding nozzle, etc. can be arranged on the relaxation frame, so that further thread processing can occur there.

[0041] Starting from the relaxation frame, the thread group continues to at least one winding bobbin, where the thread is wound into coils.

[0042] It has also proven advantageous for at least two of the pairs of thermally conductive godet rollers arranged in succession on the processing path to be arranged such that their respective free godet roller ends project into half-spaces opposite one another.

[0043] Since the respective free godet roller ends of at least two pairs of thermally conductive godet rollers arranged in succession on the processing path project into opposite half-spaces, i.e., into regions of the spatial direction opposite one another, the at least two pairs of thermally conductive godet rollers can be mounted very compactly but still accessibly on a common drafting panel frame, which is preferably accessible from both sides on which the pairs of thermally conductive godet rollers are respectively fixed.

[0044] This special arrangement is particularly advantageous for thread changing and for cleaning and maintenance work on the pairs of thermally conductive godet rollers.

[0045] So far, the arrangement of pairs of thermally conductive godet rollers successively passed through on the processing path has led to an offset between fixed horizontal planes, i.e., an offset between those vertical horizontal planes to which one of the pairs of thermally conductive godet rollers is fixed. This is because the thread inlet region is located on the thermally conductive godet roller pair near the drive end of the godet sleeve, i.e., near the limiting wall. With each rotation of the thread group around the godet sleeve of the godet roller, the thread group continues to travel in the direction of the free godet roller end away from the limiting wall. For a straight thread path when the thread group is transferred to the next pair of godet rollers, the thread inlet region of the next pair of godet rollers must be arranged exactly above the thread outlet region of the pair of godet rollers around which the previous travel occurred. So far, this has only been possible when the fixed horizontal plane of the next pair of godet rollers is horizontally offset relative to the fixed horizontal plane of the pair of godet rollers around which the previous travel occurred. The offset is determined by the number of winding turns of the pair of godet rollers around which the previous travel occurred and the width of the thread group. In the case of a large number of threads and multiple turns of the thread group around a pair of godet rollers, a relatively large total length results for the godet rollers protruding from the limiting wall, which requires a relatively large horizontal offset between the fixed horizontal planes of the pairs of godet rollers through which the thread group can successively pass.

[0046] This problem is solved in another particularly advantageous embodiment of the invention by arranging all pairs of thermally conductive godet rollers arranged on the drafting panel frame such that the respective free godet roller ends of the pairs of thermally conductive godet rollers arranged in succession on the processing path project into half-spaces opposite one another.

[0047] It has proven advantageous to arrange more than two pairs of thermally conductive godet rollers on the drafting panel frame.

[0048] For example, if three pairs of heat conducting wire rollers are arranged on the drafting panel frame, the first pair of heat conducting wire rollers on the processing path and the inlet wire guide roller pair at the end of the wire inlet section project into the same first half space. The second pair of heat conducting wire rollers on the processing path is also arranged on the drafting panel frame and projects into the second half space opposite to the first half space. Thus, the wire group can extend vertically from the free wire guide roller end of the first pair of heat conducting wire rollers and extend vertically again near the limit wall of the second pair of heat conducting wire rollers onto the wire guide sleeve of the first wire guide roller in the second pair of heat conducting wire rollers. The third heat conducting wire roller on the processing path projects into the same first half space as the inlet wire guide roller pair and the first heat conducting roller pair on the drafting panel frame.

[0049] In this advantageous arrangement, additional pairs of heat conducting wire rollers with free wire guide roller end orientations on the drafting panel frame can be mounted on the drafting panel frame in a particularly compact and accessible manner.

[0050] In another equally advantageous embodiment of the present invention, the lower pairs of heat conducting wire rollers on the drafting panel frame are oriented in such a way that their respective free wire guide roller ends are alternately oriented, and only in the case of the uppermost pair of heat conducting wire rollers on the drafting panel frame does its free wire guide roller end project into the same half space as the free wire guide rollers of the lower pairs of heat conducting wire rollers arranged below, wherein the uppermost heat conducting wire roller projects into the respective same half space with at least half of the wire guide sleeve length of one of its wire guide rollers beyond the free wire guide roller ends of the lower pairs of heat conducting wire rollers arranged below.

[0051] In this embodiment of the present invention, the drafting panel frame is extended around the uppermost pair of heat conducting wire rollers, and its free end projects into the same half space as the free ends of the lower pairs of heat conducting wire rollers arranged below. The optional uppermost pair of heat conducting wire rollers arranged in this way increases the flexibility of the wire production equipment, such that the effect is that different wires can be produced at one station of the wire production equipment without having to modify the station.

[0052] The uppermost pair of heat conducting wire rollers can optionally be used for wire production by winding the wire around it when laying the wire. If the uppermost pair of heat conducting wire rollers is not required when producing a certain type of wire, it can be omitted when laying the wire group. Due to the arrangement of the uppermost pair of heat conducting wire rollers relative to the lower pairs of heat conducting wire rollers, if the uppermost pair of heat conducting wire rollers remains free when laying the wire group, the wire guiding is not affected.

[0053] As a result, in this embodiment of the present invention, the number of pairs of heat conducting wire rollers in the wire drafting device can optionally be simply increased or decreased by one by applying the wire group. In this regard, there is no need to replace individual components of the wire production equipment.

[0054] It has proven to be particularly advantageous for the inlet godet roller pair to be fixed to a drive module that is arranged below the thread inlet section and at least partially in front of the thread inlet section.

[0055] This arrangement of the inlet godet roller pair allows the thread group to travel downward, preferably vertically, at the bottom of the thread inlet section and then be placed on the circumferential surface of the godet roller sleeve of the first godet roller in the inlet godet roller pair on the processing path without being distorted. Thus, the thread group is pulled vertically and without distortion from the first godet roller of the inlet godet roller pair through the thread inlet section. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] The particularly preferred embodiments, their structures, functions, and advantages of the present invention will be explained in more detail below with reference to the figures, where:

[0057] Figure 1 A possible embodiment of a thread production device having two stations according to the present invention is schematically shown in a front view;

[0058] Figure 2 Is schematically shown in a front view Figure 1 Of the station of the thread production device of the present invention;

[0059] Figure 3 Is schematically shown in a side view Figures 1 to 2 Of the station of the thread production device of the present invention; and

[0060] Figure 4 Is schematically shown in a top view Figures 1 to 3 Of the station of the thread production device of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0061] In all the figures, the embodiments of the present invention shown or their details are not necessarily shown to scale.

[0062] Figure 1 An embodiment of a thread production device 1 according to the present invention is shown, which has two stations 2 arranged side by side. Each station 2 has a melt spinning device 3, an adjacent thread inlet section 4, an inlet godet roller pair 5 at the end of the thread inlet section 4, a thread drafting device 6 arranged downstream of the inlet godet roller pair 5 on the processing path of the thread production device 1, and a winding bobbin 7.

[0063] Embodiments of the thread production device 1 according to the present invention having more than two stations 2 or even only a single station 2 are readily achievable.

[0064] For the sake of clarity, the melt spinning device 3 is shown in Figure 1 And in the remaining Figures 2 to 4China is shown in an extremely simplified and incomplete manner. In particular, the extruder and the filling device are omitted from the figure. The melting nozzles 32 of each melt spinning device 3 are arranged in the longitudinal direction L of the nozzle row 31.

[0065] To further describe the embodiments of the present invention shown herein, it is advantageous to consider only a single station 2 of the filament production device 1.

[0066] Figures 2 to 4 Respectively in a front view ( Figure 2 ), a side view ( Figure 3 ) and a top view ( Figure 4 ) show the individual station 2 of the filament production device 1 of the present invention according to Figure 1 .

[0067] The filaments coming out of the melting nozzle 32 are cooled during their fall and are gathered into filaments by means of a device of the filament production device 1 not shown here. The filaments fall side by side in the form of a filament group into the filament inlet part 4 of the filament production device 1 and can be drawn downward from the inlet guide roller pair 5 located at the lower end of the filament inlet part 4. The filament inlet part 4 extends along a vertical inlet part wall of the filament production device 1 provided below the melt spinning device 3.

[0068] The inlet guide roller pair 5 is connected to a drive module 10 which is located below the filament inlet part 4 and at least partially projects laterally from the retaining wall on which the filament inlet part 4 extends. The rotational axis of the first guide roller 51 of the inlet guide roller pair 5 is aligned parallel to the longitudinal direction L of the nozzle row 31.

[0069] As Figure 2 shown, an operator standing in front of the filament inlet part 4 can thus easily guide the filament group around the first guide roller 51 of the inlet guide roller pair 5 on the processing path without having to twist the filament group around the processing direction.

[0070] Subsequently as Figure 3 shown, the operator guides the yarn group around the hot guide roller pairs 61, 62, 63, 64 of the filament drafting device 6, which are fixedly arranged one above the other on the drafting panel frame 60. The operator can reach the first hot guide roller pair 61 on the processing path from the inlet guide roller pair 5 at the end of the filament inlet part 4 by means of the aisle 9.

[0071] The hot guide roller pairs 61, 62, 63, 64 are located in an adiabatic housing which is provided with slots 601 through which the filament group can travel onto or away from their respective hot guide roller pairs 61, 62, 63, 64. The adiabatic housing is shown in the open state in all the figures.

[0072] The free guide roller end 611 of the first heat conducting guide roller pair 61 on the processing path protrudes into the first half space R1 that is the same as the free guide roller end 511 of the inlet guide roller pair 5. Thus, the filament group can be very advantageously guided by the operator from the said inlet guide roller pair 5 around the first heat conducting guide roller pair 61 of the filament stretching device 6.

[0073] Above the first heat conducting guide roller pair 61 on the processing path there is a second heat conducting guide roller pair 62, the free ends of which protrude into the second half space R2 opposite to the first half space R1. Therefore, Figure 3 the second heat conducting guide roller pair 62 cannot be seen. Only the back of the guide roller limiting wall can be seen, on which the driving ends of the guide rollers of the second heat conducting guide roller pair 62 are fixed.

[0074] In order to guide the filament group around the second heat conducting guide roller pair 62 after winding around the first heat conducting guide roller pair 61, the filament group is led from the heat insulating housing of the first heat conducting guide roller pair 61 into the heat insulating housing of the second heat conducting guide roller pair 62 through the groove 601. The operator can walk around the stretching panel frame 60 and then guide the said filament group around the second heat conducting guide roller pair 62. Then, the filament group can be wound from there and wound around the third heat conducting guide roller pair 63 above the second heat conducting guide roller pair 62 in the same way.

[0075] In the shown embodiment, the first three heat conducting guide roller pairs 61, 62, 63 arranged on the stretching panel frame 60 on the processing path are all arranged such that their respective free guide roller ends 611, 631 protrude into the opposite half spaces R1, R2 from the heat conducting guide roller pairs 61, 62 and 63 arranged immediately before and after on the processing path.

[0076] In the embodiment of the filament production device 1 shown only as an example, the stretching panel frame 60 has the uppermost heat conducting guide roller pair 64, which protrudes into the same half space R1 as the free guide roller end 631 of the heat conducting guide roller pair 63 arranged below.

[0077] The operator can directly transfer the said filament group from the third heat conducting guide roller pair 63 to the heated slack guide roller pair 8 arranged on a separate slack frame 80, or can first wind it around the uppermost heat conducting guide roller pair 64 of the stretching panel frame 60 again. As a result, the number of heat conducting guide roller pairs 61, 62, 63, 64 for stretching the filament can be increased or decreased by one by simply applying a filament sheet group. Therefore, different types of filaments can be produced at the same station 2 of the filament production device 1 according to the present invention without the need to replace it for this purpose. The uppermost heat conducting guide roller pair 64 can thus be optionally incorporated into the filament production.

[0078] The uppermost hot wire guide roller pair 64 protrudes into the corresponding same half space R1 above the free wire guide roller end 631 of the wire guide roller pair 63 arranged below by at least half of the length of the wire guide roller sleeve of one of its wire guide rollers. As a result, after leaving the free wire guide roller end 631 of the third wire guide roller pair 63, the wire group can move onto the uppermost hot wire guide roller pair 64 near the driving end of the uppermost hot wire guide roller pair 64 optionally.

[0079] On the processing path of the hot wire guide roller pairs 61, 62, 63, 64 to the drafting panel frame 60, Figures 1 to 4 the wire group in the illustrated embodiment of the present invention continues to travel on the heated slack wire guide roller pair 8 fixed to the separate slack frame 80.

[0080] The free end 81 of the slack wire guide roller pair 8 protrudes into the second half space R2 opposite to the first half space R1. That is to say, the free end 81 of the slack wire guide roller pair 8 and the free end 51 of the inlet wire guide roller pair 5 protrude into the opposite space direction regions, so that the operator can easily reach from the aisle 9 formed between the slack frame 80 and the drafting panel frame 60. The operator can guide the wire group from the third hot wire guide roller pair 63 and the uppermost hot wire guide roller pair 64 to the slack wire guide roller pair 8 via the aisle 9.

[0081] The horizontal and vertical offsets between the wire from the third hot wire guide roller pair 63 and the wire from the uppermost hot wire guide roller pair 64 do not cause any significant difference to the entry of the wire onto the slack wire guide roller pair 8, because the entry angles are almost the same in both cases due to the sufficient large spacing caused by the aisle 9 between the slack frame 80 and the drafting panel frame 60.

[0082] In the illustrated embodiment, there are two winding bobbins 7 below the slack frame 80. After passing through the slack wire guide roller pair 8, the wire group is separated into individual wires and they are wound onto the winding bobbins 7.

[0083] As a result, Figures 1 to 4 the illustrated embodiment represents a compact wire production device 1, which is easy to perform wire replacement, and at this time the wire group is not distorted in its width orientation during wire replacement or during wire drafting process, except for the slight distortion caused by the single wire guide roller in the wire guide roller pair having to be arranged obliquely.

Claims

1. A silk thread production device, the silk thread production device comprising a drafting panel frame; At least one working station, each working station successively including a melt spinning device, a silk thread inlet section, an inlet godet roller pair, a silk thread drawing device, and at least one winding bobbin on a processing path, the melt spinning device having a plurality of melt nozzles longitudinally arranged along a nozzle row, the inlet godet roller pair having a free godet roller end and being arranged at an end of the silk thread inlet section, the silk thread drawing device having at least two hot godet roller pairs arranged on a drawing panel frame of the silk thread production equipment, wherein, The first heat conducting wire roller pair of the at least two heat conducting wire roller pairs is arranged upstream of the second heat conducting wire roller pair on the processing path and has a free wire guiding roller end that protrudes into the same first half space as the free wire guiding roller end of the inlet wire guiding roller pair, wherein the rotation axis of the first wire guiding roller of the inlet wire guiding roller pair is oriented at an angle of 0° to 45° with respect to the longitudinal direction of the nozzle row, and wherein the first wire guiding roller is arranged upstream of the second wire guiding roller of the inlet wire guiding roller pair on the processing path; a slack frame provided downstream of the drafting panel frame on the processing path; and a heated slack wire guiding roller pair arranged on the slack frame, wherein the drafting panel frame and the slack frame have an aisle formed therebetween, and wherein the heated slack wire guiding roller pair has a free end that protrudes into a second half space opposite to the first half space.

2. The silk thread production equipment according to claim 1, wherein, At least two heat conducting wire roller pairs arranged adjacent to each other before and after along the processing path in the heat conducting wire roller pairs are arranged such that their free wire guiding roller ends protrude into the first half space and the second half space opposite to each other.

3. The silk thread production equipment according to claim 2, wherein, All the heat conducting wire roller pairs arranged on the drafting panel frame are arranged such that their respective free wire guiding roller ends protrude into the first half space and the second half space opposite to each other from the heat conducting wire roller pairs arranged adjacent to each other before and after on the processing path.

4. The silk thread production equipment according to claim 2, wherein, Only the free wire guiding roller end of the uppermost heat conducting wire roller pair of the heat conducting wire roller pairs of the drafting panel frame protrudes into the same half space as the free wire guiding roller end of the heat conducting wire roller pair arranged below the uppermost heat conducting wire roller pair, wherein the uppermost heat conducting wire roller pair protrudes into the corresponding same half space on the free wire guiding roller end of the heat conducting wire roller pair arranged below with at least half of the wire guiding roller sleeve length of one of the wire guiding rollers in it.

5. The silk thread production equipment according to claim 1, characterized in that, The silk thread production device further comprises a driving module, the inlet wire guiding roller pair is connected to the driving module, and the driving module is arranged below the silk thread inlet part and at least partially in front of the silk thread inlet part.

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