CN113737291B - Melt spinning apparatus - Google Patents
Melt spinning apparatus Download PDFInfo
- Publication number
- CN113737291B CN113737291B CN202110582573.XA CN202110582573A CN113737291B CN 113737291 B CN113737291 B CN 113737291B CN 202110582573 A CN202110582573 A CN 202110582573A CN 113737291 B CN113737291 B CN 113737291B
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- Prior art keywords
- nozzle
- spinning
- scraping
- support
- nozzle support
- Prior art date
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- 238000002074 melt spinning Methods 0.000 title claims abstract description 27
- 238000009987 spinning Methods 0.000 claims abstract description 93
- 238000007790 scraping Methods 0.000 claims abstract description 41
- 230000007246 mechanism Effects 0.000 claims abstract description 28
- 229920000642 polymer Polymers 0.000 claims abstract description 15
- 238000006073 displacement reaction Methods 0.000 claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims description 50
- 238000005485 electric heating Methods 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 description 4
- 239000000155 melt Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000013529 heat transfer fluid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D4/00—Spinnerette packs; Cleaning thereof
- D01D4/02—Spinnerettes
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D4/00—Spinnerette packs; Cleaning thereof
- D01D4/04—Cleaning spinnerettes or other parts of the spinnerette packs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
The invention relates to a melt spinning device for melt spinning a plurality of filaments from a polymer melt, comprising a heatable nozzle support for receiving a spinning nozzle unit. For this purpose, the nozzle support has a receptacle opening on the underside, wherein the spinning nozzle unit is held in the receptacle opening in such a way that the lower nozzle plate cup of the spinning nozzle unit is mounted in a staggered manner relative to the underside of the nozzle support. In order to be able to carry out effective scraping despite the depth displacement, according to the invention, an adjusting mechanism is arranged on the nozzle support and/or the spinning nozzle unit, whereby the nozzle plate can be held so as to be freely accessible for scraping.
Description
Technical Field
The invention relates to a device for melt spinning a plurality of filaments from a polymer melt.
Background
An apparatus of this type for melt spinning a plurality of filaments from a polymer melt is disclosed, for example, by DE102005049162A 1.
In the production of synthetic threads or fibres, it is common practice to supply the previously melted polymer under high pressure by means of a spinning pump to a spinning nozzle unit having a nozzle plate. The nozzle plate has a plurality of nozzle openings so that the polymer melt is extruded into the finest filament strands. The nozzle unit is held by a heatable nozzle support, which has a receptacle opening on its underside for receiving the nozzle unit. The spinning nozzle unit in the receptacle opening can be connected in a replaceable manner by means of a connection adapter. The nozzle unit is held in the receptacle opening in such a way that the lower nozzle plate of the nozzle unit is mounted in an inwardly offset manner relative to the lower side of the nozzle support. The strands which have just been extruded from the nozzle openings of the nozzle plate can then first be spun into a plateau region which is formed by the displacement and in which no disturbance from the downstream cooling device has occurred. Such nozzle holders are also referred to in the industry as so-called spinbars, because they typically house and heat a number of spinning nozzle units. The manifold for guiding the polymer melt in the nozzle support is then also heated.
Depending on the type of polymer, melt viscosity, throughput per nozzle opening, spinning pressure and in particular on the nozzle plate material, material deposition occurs on the nozzle plate of the spinning nozzle unit, in particular in the region of the nozzle opening. It is therefore common practice that the nozzle plate must be cleaned on the underside after a certain working time. The cleaning is carried out by so-called scraping, in which deposits, in particular formed from monomers and oligomers, are scraped off the surface of the nozzle plate. The scraping operation of such a nozzle plate may be performed manually or automatically by a so-called scraping robot. However, a deep displacement of the spinning nozzle unit relative to the underside of the nozzle support is particularly disadvantageous here, since the scraping tool has to be guided into the receptacle opening.
In the known apparatus for melt spinning a plurality of filaments, the depth displacement between the underside of the nozzle support and the nozzle plate of the spinning nozzle unit can be designed to be variable when the spinning nozzle unit is assembled in the receptacle opening. The spinning nozzle unit can thus be held in operation at different depth displacements within the receptacle opening. However, smaller depth displacements have the disadvantage that only a short plateau region for the filaments to be spun is provided below the nozzle plate. Furthermore, the intrusion of the receptacle opening into the depth displacement by the scraping tool requires the spinning pump to be shut down, as a result of which the continuous flow of melt in the spinning nozzle unit is interrupted.
Disclosure of Invention
The object of the present invention is now to improve such a device for melt spinning a plurality of filaments such that an efficient scraping of the nozzle plate on the spinning nozzle unit can be achieved without interrupting the extrusion.
According to the invention, this object is achieved by an adjusting mechanism provided on the nozzle support and/or the spinning nozzle unit, by means of which the nozzle plate can be held in a freely accessible manner for scraping.
The present invention differs from the inherent concept that the path of the polymer melt to the nozzle plate must be kept consistent in order not to obtain a difference in residence time when the polymer melt is supplied. Because it is not necessary to maintain consistent operating conditions during the scraping cycle, the inventors have recognized that the operating conditions for guiding and for temperature controlling the polymer melt are variable during scraping. In this connection, an adjusting mechanism is arranged on the nozzle support and/or the spinning nozzle unit, by means of which the nozzle plate can be held so as to be freely accessible for scraping. As a result, the nozzle plate can be held on the underside of the nozzle carrier without depth displacement, so that a linear scraping movement of the scraping tool is possible. The extrusion process need not be interrupted. The scraping tool can thus be moved into a position laterally beside the spinning nozzle unit in order to subsequently clean the underside of the nozzle plate by a linear scraping movement.
Different variants of the embodiment of the adjusting mechanism are possible in order to compensate and span the nozzle plate depth misalignment relative to the underside of the nozzle support. In a first alternative embodiment, the adjusting mechanism between the nozzle support and the spinning nozzle unit has a telescopic connection adapter, by means of which the spinning nozzle unit in the receptacle opening of the nozzle support can be guided to reciprocate between a melt spinning working position and a scraping position. The span of the depth displacement between the spinning nozzle unit and the nozzle support can advantageously be bridged here by a telescopic adapter between the spinning nozzle unit and the nozzle support.
In principle, however, it is also possible to arrange the spinning nozzle unit in the receptacle housing of the nozzle support in such a way that the nozzle plate ends flush with the underside of the receptacle housing. The receptacle housing is movably held in the nozzle support and can be guided in a reciprocating manner with a depth offset between a melt spinning working position and a scraping position. In this case, however, a flexible arrangement of the main line for feeding the polymer melt to the spinning nozzle unit is required.
In a particularly advantageous variant of the invention, the adjusting mechanism has a separate heating element which is arranged on the underside of the nozzle support and surrounds at least the portion of the spinning nozzle unit which protrudes from the receptacle opening and is held detachably or movably on the nozzle support. Both the stationary connector and the stationary mains can be used in this way. The individual heating elements form here the underside of the nozzle support and thus the depth offset relative to the spinning nozzle unit. At the same time, such a heating element can be used as a so-called post-heater, which in particular allows for delayed cooling of the filaments. Alternatively or in addition to the heating element, the adjusting mechanism can have a separate heat-insulating element which is arranged on the underside of the nozzle support and surrounds at least the portion of the spinning nozzle unit which protrudes from the receptacle opening and is detachably or movably held on the nozzle support. The heating element may be designed as a heating beam. The insulating element may be designed in the shape of a beam.
In the case of a heating element which is preferably limited to a spinning nozzle unit, the invention is preferably modified in such a way that the heating element is formed in a ring shape and/or can be removed from the nozzle support for scraping. Alternatively or additionally, the heat insulating element may be configured in the form of a ring and/or be removable from the nozzle support for scraping.
Alternatively, however, according to an advantageous development of the invention, the heating element can also be held on the nozzle support at a distance from the nozzle support in the operating position, and the heating element and/or the heat-insulating element can be configured to be movable toward the nozzle support for scraping. In this way, the heating element can be held movably on the nozzle support and adjusted only briefly. The distance between the heating element and the nozzle support is designed to be greater than the depth offset between the underside of the heating element and the spinning nozzle unit. In this way it is ensured that the underside of the spinning nozzle protrudes by moving the heating element towards the nozzle support.
In order to ensure temperature control of the spinning nozzle unit, in particular during operation, it is provided that, despite the distance between the nozzle support and the heating element, an electric heating strip for temperature control of the spinning nozzle unit is arranged between the nozzle support and the heating element concentrically to the receptacle opening. Because of the electric heating strips, the working temperature in the spinning nozzle can be kept.
In order to achieve automation, the following inventive development is preferably implemented, the adjusting mechanism having at least one adjusting actuator which can be activated before and after the nozzle plate is scraped against the spinning nozzle unit. In this way, the exposure of the nozzle plate and the scraping operation can be performed in an automated manner. Hydraulic or pneumatic or electric means, for example in the form of spindle drives, can be used as adjustment actuators.
Since a plurality of nozzle units are usually held simultaneously on the nozzle plate during the production of the synthetic threads, the development of the invention is particularly advantageous in that the nozzle support has a plurality of receptacle openings on the underside for receiving the plurality of nozzle units, and the adjusting means comprises at least one group of nozzle units for releasing the nozzle plate. In this way, for example, an congruent (congrent) heating element can be arranged on the underside of the nozzle support, which heating element has a cutout that corresponds in a concentric manner to the receptacle opening.
The receptacle opening and the cutout can have any shape, so that a round, oval or even rectangular spinning nozzle unit can be used. It is essential here that the adjusting mechanism leaves a depth offset for scraping on each spinning nozzle unit.
Drawings
The invention will be explained in more detail below with reference to the drawings and by means of several embodiments of a melt spinning apparatus according to the invention, in which:
fig. 1.1 schematically shows a cross-sectional view of a first embodiment of a melt spinning apparatus according to the present invention;
fig. 1.2 schematically shows the embodiment of fig. 1.1 in a scraping position;
FIG. 2 schematically illustrates a cross-sectional view of another embodiment of a melt spinning apparatus according to the present invention;
FIG. 3 schematically illustrates a cross-sectional view of another embodiment of a melt spinning apparatus according to the present invention;
fig. 4.1 schematically shows a view of another embodiment of a melt spinning apparatus according to the invention; and
fig. 4.2 schematically shows the embodiment of fig. 4.1 in a scraping position.
Detailed Description
A first embodiment of an apparatus for melt spinning a plurality of filaments from a polymer melt according to the present invention is schematically shown in the cross-sectional views of fig. 1.1 and 1.2. Fig. 1.1 shows the device in the working position, and fig. 1.2 shows the device in the scraping position. The following description applies to both figures unless explicitly mentioned to either figure.
This embodiment has a nozzle support 1 which has a receptacle opening 4 on the underside 3. The receptacle opening 4 protrudes through the receptacle wall 6 into the interior of the nozzle support 1. The nozzle support 1 is constructed as a hollow body and has a heating chamber 7. The heating chamber 7 is typically heated by a heat transfer medium.
A threaded adapter 9 on which the spinning nozzle unit 2 is detachably mounted is held in the receptacle opening 4. The spinning nozzle unit 2, which is also referred to in the industry as a so-called spinning nozzle assembly, is shown here only with the constituent parts relevant to the invention. A spinning nozzle unit 2 of this type is known and is described in more detail, for example, in DE102014000305 A1. In this regard, reference is made to the publications cited herein.
The spinning nozzle unit 2 has a nozzle plate 8 with a plurality of nozzle openings 8.1 for extruding a polymer melt to form a plurality of filament strands. The nozzle plate 8 is held in a nozzle housing 10. The nozzle housing 10 has a connecting thread 20 at the end facing the threaded adapter 9, by means of which the spinning nozzle unit 2 is screwed onto the threaded adapter 9.
The threaded adapter 9 is coupled to an adjusting mechanism 11 by means of which the spinning nozzle unit 2 in the receptacle opening 4 can be guided for a reciprocating movement. In this embodiment, the adjusting mechanism 11 is formed by a telescopic adapter 16, which is arranged between the nozzle support 1 and the spinning nozzle unit 2. The telescopic adapter 16 in the nozzle holder 1 is connected to the stationary melt line 12 and has a continuous melt pipe 21 which also passes through the threaded adapter 9. The melt conduit 21 opens into the spinning nozzle unit 2.
The telescopic adapter 16 is not explained in detail in terms of its structure and has a telescopic structure in order to displace the threaded adapter 9 and the spinning nozzle unit 2 within the receptacle opening 4.
The telescopic adapter 16 is shown in a retracted state in fig. 1.1.
This state of the spinning nozzle unit 2 indicates an operating state. The nozzle plate 8 of the spinning nozzle unit 2 is held in an internal offset relative to the underside 3 of the nozzle support 1. The internal offset is referred to herein as the depth offset and is denoted by reference numeral 5 in fig. 1.1.
In order to remove deposits from the lower surface of the nozzle plate 8 after a certain working time, the adjusting mechanism 11 is activated by an actuator, not shown in detail, so that the telescopic adapter 16 pushes the spinning nozzle unit 2 out of the receptacle opening 4, so that the lower surface of the nozzle plate 8 is freely accessible. This is shown in fig. 1.2. The nozzle plate 8 of the spinning nozzle unit 2 is now freely accessible for scraping, whereby the scraping tool can be guided by a simple linear movement. There is no need to interrupt the extrusion of the filaments, since the scraping tool can be guided transversely onto the spinning nozzle unit 2 and does not have to interfere with the depth displacement.
Various adjusting mechanisms 11 can be implemented to make the nozzle plate 8 of the spinning nozzle unit 2 on the nozzle support 1 freely accessible. In this way, a further embodiment of an apparatus for melt spinning a plurality of filaments according to the invention is schematically shown in the cross-sectional view of fig. 2. The structure of the spinning nozzle unit 2 and the nozzle plate 1 according to fig. 2 is substantially identical to the embodiment according to fig. 1.1, so only the differences are explained here, with reference to the previous description.
In the embodiment shown in fig. 2, the receptacle opening 4 is integrated in a receptacle housing 13 on the underside 3 of the nozzle support 1. The receptacle housing 13 extends into the nozzle support 1 and is held movably on the nozzle support 1. For this purpose, a receptacle housing 13 in the nozzle support 1 is connected to the flexible melt line 12. The melt line 12 leads into a connection adapter 17, which is connected to the threaded adapter 9. The nozzle housing 10 of the spinning nozzle unit 2 is held on the threaded adapter 9.
The spinning nozzle unit 2 is arranged in the receptacle housing 13 in such a way that the nozzle plate 8 is held in the lower region of the receptacle housing 13 flush with the underside of the receptacle housing 13 or protrudes slightly from this underside. In order to scrape the nozzle plate 8, the receptacle housing 13 in the nozzle carrier 1 is thus moved downward, so that the receptacle housing 13 and the nozzle plate 8 are held in place protruding from the underside 3 of the nozzle carrier 1. This situation is shown in fig. 2. In operation, the receptacle housing 13 is moved back into the nozzle support 1 together with the nozzle unit 2, so that the desired depth offset is formed on the underside 3 of the nozzle support 1. The adjusting mechanism 11 may have an adjusting actuator in the form of an electric, pneumatic or hydraulic linear drive.
Fig. 3 shows a further variant of the adjusting mechanism. Fig. 3 schematically shows in cross-section another embodiment of an apparatus for melt spinning a plurality of filaments according to the present invention. The arrangement of the nozzle support 1 and the spinning nozzle unit 2 is here again substantially identical to the embodiment according to fig. 1.1, so that only the differences will be explained here, with reference to the preceding description.
In the embodiment shown in fig. 3, the nozzle unit 2 is held in the receptacle opening 4 of the nozzle support 1 in such a way that the nozzle plate 8 of the nozzle unit 2 is held protruding on the underside 3 of the nozzle support 1. As the adjusting means 11, a movable heating element 14 is provided, which in this embodiment is formed by a heating ring 22, which surrounds the protruding region of the spinning nozzle unit 2 on the underside 3 of the nozzle support 1. In this case, the heating ring 22 forms a depth offset 5 for the spun filaments spun from the nozzle plate 8. The heating ring 22 is detachably connected to the nozzle holder 1. To scrape the nozzle plate 8, the heating ring 22 can be removed from the underside 3 of the nozzle support 1. The nozzle plate 8 of the spinning nozzle unit 2 on the nozzle support 1 is thus freely accessible. The adjusting mechanism is particularly suitable for melt spinning processes in which it is necessary to spin filaments into a longer post-heating zone. In this way, a larger depth shift can also be produced by heating the ring.
In the embodiment of the device for melt spinning a plurality of filaments according to the invention shown so far, a nozzle support 1 for receiving a spinning nozzle unit 2 is shown. In principle, however, such a nozzle support 1 has a plurality of nozzle units which are held in place on the underside of the nozzle support in one or more rows in parallel. The nozzle support is therefore preferably also referred to in the industry as a so-called spinning beam. Thus, the previously illustrated embodiments are also applicable to nozzle holders having multiple receiver openings. In this connection, the adjusting mechanism extends according to an embodiment variant to one or more spinning nozzle units.
In fig. 4.1 and 4.2, a further example of a further alternative embodiment of an apparatus according to the invention for melt spinning a plurality of filaments is shown with an adjusting mechanism 11. Fig. 4.1 shows an embodiment with a plurality of spinning nozzle units 2.1 to 2.6 in a working position for melt spinning a plurality of filaments, fig. 4.2 showing a state in a scraping position. The following description applies to both figures unless explicitly mentioned to either figure.
The embodiments according to fig. 4.1 to 4.2 show a beam-shaped nozzle support 1, which carries a plurality of spinning nozzle units on the underside 3. The number of spinning nozzle units shown here by way of example is six units. The receptacles and connectors of the spinning nozzle units 2.1 to 2.6 can be realized in a corresponding manner to the embodiment according to fig. 3. The spinning nozzle units 2.1 to 2.6 are each connected to a spinning pump 23 via a stationary melt line 12. The spinning pump 23 is realized in the form of a multiple pump so that each spinning nozzle unit 2.1 to 2.6 can be supplied with a small split of the polymer melt. The nozzle support 1 is realized in such a way that it can be heated by means of a heat transfer medium, so that the spinning nozzle sections of the spinning nozzles 2.1 to 2.6 and the melt line 12 in the heating chamber 7 of the nozzle support 1 are heated.
The nozzle units 2.1 to 2.6 are held in a significantly protruding manner on the underside 3 of the nozzle support 1. The spinning nozzle unit 2 is heated in the lower region by a separate heating element 14. In this exemplary embodiment, the heating element 14 is embodied in the form of a lower heating beam 25 which extends congruently to the nozzle support 1 and has a through opening 24 for each nozzle unit 2.1 to 2.6. The heating beam 25 can be heated internally, for example by a heat transfer fluid, so that the spinning nozzle units 2.1 to 2.6 can be heated in the lower region. Fig. 4.1 shows the heating beam 25 in the operating position. The heating beam 25 is spaced apart from the underside 3 of the nozzle support 1, so that the spinning nozzle units 2.1 to 2.6 are held on the heating beam 25 with a depth offset 5.
In the region between the underside 3 of the nozzle support 1 and the heating beam 25, individual heating strips 26 (which are held on the underside 3 of the nozzle support 1 in the form of a jacket around the nozzle units 2.1 to 2.6) are each assigned to a nozzle unit 2.1 to 2.6. In this connection, temperature control is ensured even in the case of a relatively long distance between the heating beam 25 and the nozzle support 1.
In order to scrape the spinning nozzle units 2.1 to 2.6 against a nozzle plate (not shown here), the heating beam 25 is moved in the direction of the nozzle support 1. For this purpose, the adjusting mechanism 11 has an adjusting actuator 15. In this embodiment, the adjustment actuator 15 is formed by an adjustment spindle 19 on a spindle motor 18. In this way, the heating beam 25 is held at both ends by one adjusting spindle 19 on the underside 3 of the nozzle support 1. The adjusting spindles 19 are each connected to a spindle motor 18, so that by activating the spindle motor 18 the heating beam 25 is moved upwards towards the nozzle support 1 and the nozzle plate 8 of the spinning nozzle unit 2 is exposed. This situation is shown in fig. 4.2. Now, it is preferable that the nozzle plate 8 of the spinning nozzle unit 2 can be scraped intensively. Once the scraping is completed, the heating beam 25 is returned to its working position.
The apparatus for melt spinning a plurality of filaments of the present invention is suitable for manual or automatic scraping of a spinning nozzle unit. The adjusting mechanism can be accessible here to individual nozzle units or groups of nozzle units, so that the nozzle units can be scraped individually or in groups on their nozzle plates. The extrusion operation need not be interrupted.
Claims (10)
1. Melt spinning apparatus for melt spinning a plurality of filaments from a polymer melt, having a heatable nozzle support (1) for receiving a spinning nozzle unit (2), wherein the nozzle support (1) has a receptacle opening (4) on a lower side (3), and wherein the spinning nozzle unit (2) is held in a working position in the receptacle opening (4) such that a lower nozzle plate (8) of the spinning nozzle unit (2) is arranged with an internal offset (5), i.e. a depth offset, relative to the lower side (3) of the nozzle support (1), characterized in that an adjusting mechanism (11) is provided on the nozzle support (1) and/or the spinning nozzle unit (2), by means of which adjusting mechanism (11) the spinning nozzle unit (2) can be moved such that in a scraping position the nozzle plate (8) is held freely accessible for scraping purposes.
2. The apparatus according to claim 1, characterized in that the adjusting mechanism (11) between the nozzle support (1) and the spinning nozzle unit (2) has a telescopic connection adapter (16), by means of which telescopic connection adapter (16) the spinning nozzle unit (2) can be guided in a reciprocating manner between the working position for melt spinning and the scraping position for scraping in the receptacle opening (4) of the nozzle support (1).
3. The apparatus according to claim 1, characterized in that the adjusting mechanism (11) has a receptacle housing (13) which is arranged to be movable within the nozzle support (1) for the purpose of receiving the spinning nozzle unit (2) without a depth displacement and can be guided in a reciprocating manner between the working position for melt spinning and the scraping position for scraping.
4. The device according to claim 1, characterized in that the adjusting mechanism (11) has a separate heating element (14), the heating element (14) being arranged on the underside of the nozzle support, and/or the adjusting mechanism (11) has a separate heat insulating element, which is arranged on the underside of the nozzle support and surrounds at least the portion of the spinning nozzle unit (2) protruding from the receptacle opening (4), and which is held on the nozzle support (1) in a detachable or movable manner.
5. The apparatus according to claim 4, characterized in that the heating element (14) and/or the heat insulating element are configured to be annular and removable from the nozzle support (1) for scraping purposes.
6. The apparatus according to claim 4, characterized in that the heating element (14) and/or the heat insulating element are held on the nozzle support (1) at a distance from the nozzle support (1) in the operating position, and that the heating element (14) is configured to be movable towards the nozzle support for scraping purposes.
7. The apparatus according to claim 6, characterized in that between the nozzle holder (1) and the heating element (14) and/or between the nozzle holder (1) and the heat insulating element, an electric heating strip (26) for temperature control of the spinning nozzle unit (2) is arranged concentric with the receptacle opening (4).
8. The apparatus according to any one of claims 1 to 7, characterized in that the adjustment mechanism (11) has at least one adjustment actuator (15), which at least one adjustment actuator (15) can be activated before and after scraping of the nozzle plate (8) on the spinning nozzle unit (2).
9. The apparatus according to any one of claims 1 to 7, characterized in that the nozzle carrier (1) has a plurality of receptacle openings (4) at the underside for receiving a plurality of spinning nozzle units (2.1-2.6), and in that the adjusting mechanism (11) comprises at least one set of spinning nozzle units (2.1-2.6) for releasing the nozzle plate (8).
10. The apparatus according to claim 4, characterized in that the heating element (14) is in the form of a heating beam.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102020003250.8 | 2020-05-29 | ||
| DE102020003250 | 2020-05-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113737291A CN113737291A (en) | 2021-12-03 |
| CN113737291B true CN113737291B (en) | 2023-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110582573.XA Active CN113737291B (en) | 2020-05-29 | 2021-05-27 | Melt spinning apparatus |
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| CN (1) | CN113737291B (en) |
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| CN205732082U (en) * | 2016-06-07 | 2016-11-30 | 宜宾海丝特纤维有限责任公司 | The flusher of spinning-drawing machine acid scrapping device |
| WO2018234009A1 (en) * | 2017-06-23 | 2018-12-27 | Oerlikon Textile Gmbh & Co. Kg | Method and device for melt-spinning synthetic threads |
| CN110914487A (en) * | 2017-06-23 | 2020-03-24 | 欧瑞康纺织有限及两合公司 | Method and device for melt spinning synthetic threads |
| WO2019211181A1 (en) * | 2018-05-04 | 2019-11-07 | Oerlikon Textile Gmbh & Co. Kg | A method of melt-spinning and winding synthetic yarns, and an equipment for realizing the method |
| CN110438575A (en) * | 2018-05-04 | 2019-11-12 | 欧瑞康纺织有限及两合公司 | A kind of method and apparatus for implementing the method for melt spinning and yarn winding |
| WO2020094702A1 (en) * | 2018-11-09 | 2020-05-14 | Oerlikon Textile Gmbh & Co. Kg | Method and device for cleaning a spinneret |
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