EP1090170B1 - Spinnvorrichtung zum spinnen eines synthetischen fadens - Google Patents
Spinnvorrichtung zum spinnen eines synthetischen fadens Download PDFInfo
- Publication number
- EP1090170B1 EP1090170B1 EP99931100A EP99931100A EP1090170B1 EP 1090170 B1 EP1090170 B1 EP 1090170B1 EP 99931100 A EP99931100 A EP 99931100A EP 99931100 A EP99931100 A EP 99931100A EP 1090170 B1 EP1090170 B1 EP 1090170B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spinning apparatus
- inlet cylinder
- zone
- cooling tube
- filaments
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000009987 spinning Methods 0.000 title claims description 103
- 238000001816 cooling Methods 0.000 claims description 110
- 239000003570 air Substances 0.000 claims description 93
- 230000035699 permeability Effects 0.000 claims description 21
- 238000010438 heat treatment Methods 0.000 claims description 5
- 239000012080 ambient air Substances 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims 1
- 208000012886 Vertigo Diseases 0.000 description 76
- 238000004804 winding Methods 0.000 description 14
- 230000008901 benefit Effects 0.000 description 11
- 230000033001 locomotion Effects 0.000 description 10
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- 230000008859 change Effects 0.000 description 2
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- 230000008025 crystallization Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 238000007669 thermal treatment Methods 0.000 description 2
- 239000012815 thermoplastic material Substances 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001914 calming effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
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- 230000003111 delayed effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
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- 238000004321 preservation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
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
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/08—Melt spinning methods
- D01D5/088—Cooling filaments, threads or the like, leaving the spinnerettes
- D01D5/092—Cooling filaments, threads or the like, leaving the spinnerettes in shafts or chimneys
-
- 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
- D01D13/00—Complete machines for producing artificial threads
Definitions
- the invention relates to a spinning device for spinning a synthetic Thread according to the preamble of claim 1.
- This spinning device is known and in WO 95/15409 described.
- the freshly extruded filaments move through supports an air flow. This ensures that the freezing point of the Filaments move away from the spinneret. This leads to a delayed Crystallization, which is beneficial to the physical properties of the thread effect. For example, when manufacturing a POY yarn, the Take-off speed and thus the stretching can be increased without for the yarn the elongation values required for further processing change.
- the known spinning device consists of a cooling tube and a Airflow generators, which are arranged below the spinneret. Between the Spinneret and the cooling tube is an inlet cylinder with gas permeable Wall arranged. By the interaction of the inlet cylinder and the Airflow generator is introduced an amount of air within the cooling shaft and within the cooling tube into an accelerated air flow in Thread running direction.
- the inlet cylinder consists of a perforated, gas permeable material. This is the amount of air flowing in radially proportional to the applied pressure difference, which increases with increasing Filament speed increased. Thus, with increasing Distance from the spinneret is the amount of air entering the inlet cylinder greater.
- the filaments must be evenly consolidated in their outer layers.
- the filaments are pre-cooled in such a way that the boundary layer has solidified before entering the cooling tube.
- they are Filaments still melt when entering the cooling tube, so that the final Solidification takes place only in the cooling pipe. This is why there is even pre-cooling of all filaments required.
- the uniform cross-section of the intake cylinder is present so that every single filament in the cooling tube is even in its Locomotion is supported.
- the quality of the thread is determined by the Interaction of the filament properties determined. It is therefore known that for Production of a high quality yarn of every filament within one Filament bundle must undergo the same treatment. With the known The method and the known device becomes conscious of the freezing point of the spinneret moves away so that the only after passing through a pre-cooling zone Solidify filaments in the cooling zone formed by the cooling tube. In order to the filaments pass through a relatively large distance in which they are exposed to different air currents.
- a spinning device in which the inlet cylinder is arranged in a pressure chamber.
- the inlet cylinder has a sieve-shaped wall, so that due to the excess pressure prevailing on the outside of the inlet cylinder, a larger pressure difference and thus a larger inflowing amount of air is achieved.
- EP 0 580 977 or DE 195 35 143 also describe spinning devices.
- the inlet cylinder is designed below the spinneret with an air permeability which changes in the direction of the thread in order to obtain a cooling of the filaments as a function of the speed of the thread.
- the known spinning devices aim at a complete cooling of the filaments within the inlet cylinder and are therefore unsuitable for producing an air flow which supports filament movement with only pre-cooled filaments.
- No. 5,219,582 A also describes only one device for radial Quenching filaments spun from a melt with the aid of a Quenching chamber surrounded by a gas permeable cylinder.
- Whose gas-permeable pores have different sizes in the thread running direction Diameter, so that with the help of different sized pores the gas flow for cooling the filaments can be influenced.
- a targeted generation of an air flow supporting the thread movement in the thread running direction does not take place.
- CH 678 433 A discloses a spinning device for cooling, stabilizing and preparing melt-spun filaments. Again, mainly a radial inflow of the filaments causes.
- Another object of the invention is the above-mentioned spinning device to further develop such that all filaments of a filament bundle to solidification receive a substantially uniform treatment.
- the Inlet cylinder is in the thread running direction in several zones each different gas permeability to control the in the inlet cylinder incoming air volume divided. This means that regardless of the Filament speed and regardless of the differential pressure between the Spinnschacht and the environment flowing into the spinning shaft Air volume can be influenced. This makes it possible to target the Properties of the filaments exert influence from different zones the spinneret. The influence can be on the one hand that all Filaments should be precooled if possible under the same cooling conditions Preservation of the marginal zones. Furthermore, the arrival of the Filaments in the cooling tube as well as the formation of the air flow in the cooling tube due in particular to those entering in the lower region of the inlet cylinder Influence air volume.
- the one entering through the wall of the intake cylinder The amount of air is proportional depending on the gas permeability or Porosity of the wall. If the gas permeability is high, a larger amount of air per unit of time in otherwise constant conditions initiated the spinning shaft. In the opposite case, the smaller occurs Gas permeability of the wall a relatively smaller amount of air in the Spinning shaft.
- the particularly advantageous development of the spinning device according to claim 2 has the advantage that a relatively large amount of air for cooling the filaments is available. Another advantage is that a substantially uniform air volume distribution within the spinning shaft established. Because in the upper area the filament speed is low and also the filaments are relatively wide due to the small distance to the spinneret are spaced from each other in the upper zone of the inlet cylinder Air flow is essentially unimpeded over the entire Distribute spinning shaft cross-section. This ensures that within the Filament bundle form a uniform air flow in the cooling tube can.
- the embodiment of the invention according to claim 3 is particularly suitable to treat the filaments in a relatively weak pre-cooling.
- a particularly gentle cooling which is another Improving spinning security means.
- the quantity of filament breaks.
- the lower zone will have a relatively large amount of air in the spinning shaft initiated, which facilitates the entry of the filament bundle into the cooling tube. This advantageously makes striking the filaments against the tube wall in the Prevents area of the narrowest cross section.
- the gas permeability of the upper zone can be reduced in this way that the upper zone becomes gas impermeable. This creates a quiet zone formed immediately below the spinneret, which a stable spinning of the Filaments guaranteed and thus the formation of a uniform Favored filament structure.
- the particularly advantageous development of the spinning device according to claim 5 has the advantage that both an even air volume distribution inside the spinning shaft and thus also a uniform pre-cooling of the Filaments is reached and on the other hand the filaments run into the Cooling pipe favors. Because in the middle of the inlet cylinder relatively little Air entering the spinning shaft can already be in the direction of the thread Form aligned air flow based on filament speed. Due to the amount of air fed into the cooling pipe immediately before entering an essentially uniform attack on each filament Airflow off.
- the embodiment of the invention according to claim 7, on the other hand, enables Length of the inlet cylinder to generate a flow profile, which none contains gradual changes in the air supply. Furthermore, thereby achieve that the amount of air entering the spinning shaft regardless of the thread speed essentially over the length of the Zone can be kept the same.
- the wall of the inlet cylinder can be made from any porous Create material.
- the gas permeability or the air resistance within the wall can be specified very precisely.
- the gas permeability is in this case about the number of inlet openings of the perforations and about the Defined diameter of the inlet openings of the perforations.
- the design of the spinning device according to claim 8 is particularly suitable to generate an air flow that supports filament movement.
- the Execution of the invention according to claim 11 is particularly advantageous. in this connection can single cylinders with the same or with different Gas permeability must be placed one above the other. This can be done through different Mesh sizes of the wire mesh or by different multilayer of the Locations can be reached.
- the training according to claim 12 offers the possibility of Change gas permeability using a paper sleeve.
- the paper sleeve performs an air filtering, so that none Contamination can get into the spinning shaft.
- the spinning device according to claim 13 is particularly advantageous.
- the Wall inside the inlet cylinder in the area of at least one zone several baffles attached that slope from the wall in Have the thread running direction.
- the Airflow generator through a fan in the area of the intake cylinder, through a Injector immediately before entering the cooling tube or through a suction device, which is connected to the cooling pipe on the outlet side of the cooling pipe.
- the suction device has the particular advantage that all during Spinning emerging particles such as monomers from the Spinning shaft to be removed. This will contaminate the Avoided spinning shaft.
- the Spinning device according to claim 16 is particularly advantageous. Through the arrangement of the nozzle bores according to the invention within the spinneret is achieved in the cooling tube on each filament rectified and attack air flows of the same size pointing in the direction of the thread.
- the spinning device has the advantage that the prevailing flow profile of the air flow in the pipe cross section is used to arrange the nozzle bores in the spinneret.
- the flow profile of the air flow which is established in the tube is of the Inlet geometry of the cooling pipe and the internal nature of the Cooling tube to the last of the diameter of the cooling tube and the type of flow dependent. This can differ within the pipe cross-section Form flow velocities that are evenly distributed Filaments inevitably become one within the tube cross-section would result in different treatment.
- the invention offers one Possibility of arranging the filaments within the filament bundle in such a way that each filament with substantially the same flow rate through the Cooling pipe is guided.
- the particularly preferred development of the spinning device according to claim 18 has the advantage that the filament bundle is securely inserted into the cooling tube and that there is a less turbulent air flow in the entrance area of the Forms cooling tube. It was found that the air flow inside the cooling tube has a flow profile that tends to be in the middle of the Cooling tube has a maximum flow rate. Through the Formation of the spinneret according to claim 18 is thus avoided that Enter filaments in the middle of the cooling tube.
- the arrangement of the nozzle holes in a closed row of holes also achieved that within the inlet cylinder, the Pre-cooling is achieved.
- the formation of the spinning device according to claim 20 is particularly of Advantage for evenly pre-cooling with several rows of holes to reach.
- the spinning device Filaments with a substantially equal distance from the wall of the Inlet cylinder led. This is an additional equalization of the Pre-cooling and thus reproducible solidification of the surface layer achieved.
- the distance between the spinneret and the cooling pipe at least 100 mm to max. Should be 1000 mm. in this connection the cooling tube has a diameter in the area of the narrowest Pipe cross-section from a minimum of 10 mm to a maximum of 40 mm.
- the formation of the Spinning device according to the invention according to claim 23 is particularly advantageous.
- a heater between the spinneret and the inlet cylinder provided for the thermal treatment of the filaments.
- the ambient air outside the circumference of a zone preferably the upper zone Inlet cylinder heated to a temperature of 35 ° C to 350 ° C.
- Warm air entering the inlet cylinder becomes the filaments before actual cooling depending on the air temperature thermally treated.
- the spinning devices according to the invention are suitable for textile threads or Manufacture technical threads from polyester, polyamide or polypropylene. It can use different treatment facilities for the thread downstream, for example, a fully drawn thread (FDY), a pre-oriented thread (POY) or a highly oriented thread (HOY) manufacture.
- FDY fully drawn thread
- POY pre-oriented thread
- HOY highly oriented thread
- Fig. 1 is a first embodiment of an inventive Spinning device shown for spinning a synthetic thread.
- a thread 12 is spun from a thermoplastic material.
- the Thermoplastic material is used in an extruder or a pump melted.
- the melt is via a melt line 3 by means of a Spinning pump conveyed to a heated spinning head 1.
- a spinneret 2 is attached at the bottom of the Spinning head 1.
- the emerges from the spinneret 2 Melt in the form of fine filament strands 5.
- the filaments 5 pass through a spinning shaft 6, which is formed by an inlet cylinder 4.
- the inlet cylinder 4 is immediately below the spinning head 1 arranged and encloses the filaments 5.
- At the free end of the inlet cylinder 4th is followed by a cooling tube 8 in the thread running direction.
- the cooling tube 8 is over an inlet cone 9 connected to the inlet cylinder 4.
- the cooling tube 8 On the opposite side of the inlet cone 9, the cooling tube 8 has a Outlet cone 10, which opens into an outlet chamber 11.
- the outlet chamber 11 On the bottom the outlet chamber 11 is an outlet opening 13 in the plane of the thread Outlet chamber 11 introduced.
- Suction nozzle 14 On one side of the outlet chamber 11 opens Suction nozzle 14 into the suction chamber 11. Via the suction nozzle 14, one is free End of the suction nozzle 14 arranged air flow generator 15 with the Outlet chamber 11 connected.
- the air flow generator 15 is a suction device educated.
- the suction device 15 can for example be a vacuum pump or have a blower which has a negative pressure in the outlet chamber 11 and thus generate in the cooling tube 8.
- the Winding device 20 consists of a head thread guide 19.
- Der Head thread guide 19 indicates the beginning of the traversing triangle, which is indicated by the Movement of a traversing thread guide of a traversing device 21 arises.
- a pressure roller 22 is located below the traversing device 21 arranged.
- the pressure roller 22 lies on the circumference of a coil 22 to be wound on.
- the coil 23 is produced on a rotating winding spindle 24.
- winding spindle 24 is driven by spindle motor 25.
- the drive the winding spindle 25 is depending on the speed of the Pressure roller controlled so that the peripheral speed of the coil and hence the take-up speed during take-up essentially remains constant.
- Treatment device 17 for treating the thread 12 interposed.
- the Treatment device 17 is formed by a swirling nozzle 18.
- Treatment facility one or more unheated or heated godets be arranged so that the thread in its tension before winding can be influenced or stretched. There is also the possibility additional heating devices for stretching or relaxation within the To arrange treatment device 17.
- a polymer melt is used for Spinning head 1 conveyed and through the spinneret 2 into a variety of filaments 5 extruded.
- the bundle of filaments is drawn off the winding device 20.
- the filament bundle passes through the with increasing speed Spinning shaft 6 within the inlet cylinder 4.
- Filament bundles into the cooling tube 8 via the inlet cone 9.
- a negative pressure is generated via the suction device 15. This will make the outside Ambient air present at the inlet cylinder 4 into the spinning shaft 6 sucked.
- the amount of air entering the spinning shaft 6 is here proportional to the gas permeability of the wall 7 of the inlet cylinder.
- the inflowing air leads to a pre-cooling of the filaments, so that the Solidify the outer layers of the filaments. At the core, however, the filaments remain molten. The amount of air is then together via the inlet cone 9 sucked into the cooling tube 8 with the filament bundle. The air flow will due to a narrowest cross section in the cooling tube 8 under the effect of Suction device 15 accelerated so that none of the cooling tube Filamen movement counteracting air flow is more present. In order to the load on the filaments is reduced.
- the air flow via the outlet cone 10 into the outlet chamber 11 initiated.
- a for further air calming Screen cylinder 30 is arranged, which encloses the filament bundle.
- the air will then via the nozzle 14 and the suction device 15 from the outlet chamber 11 sucked and discharged.
- the filaments 5 appear on the underside of the Outlet chamber 11 through the outlet opening 13 and run into the Preparation device 16 a. Until the filaments emerge from the cooling tube the filaments cool down completely.
- the filaments become a thread 12 merged.
- the thread 12 is in front of the Winding swirled through a swirl nozzle 18.
- the thread 12 is wound into the bobbin 23.
- At the in 1 arrangement can for example produce a polyester thread be wound up at a winding speed of> 7,000 m / min becomes.
- the spinning device shown in Fig. 1 is characterized in that the in The amount of air entering the inlet cylinder for the heat treatment of the filaments is voted.
- the pre-cooling and the suction flow can be advantageous to be influenced.
- 2, the inlet cylinder 4 from FIG. 1 is shown again.
- the wall 7 of the inlet cylinder 4 is a perforated plate with two different perforations 29 and 26 formed.
- the perforation leads in the upper zone to a schematically indicated flow profile 28.
- Das Flow profile 28 which is symbolized by arrows, gives a measure of the in the amount of air entering the spinning shaft 6.
- the perforation 29 is within the upper zone equal.
- the amount of air increases with increasing Distance from the spinneret due to the negative pressure effect in the cooling tube 8 and due to the increasing filament speed.
- the wall 7 has a perforation with a larger opening cross-section. How represented by the symbolized flow profile 27 is in the lower zone a larger amount of air enter the spinning shaft 6. Here too is the The tendency is recognizable that with increasing distance from the spinneret inflowing air volume increases.
- the flow profile shown in Fig. 2 is over the wall of the inlet cylinder particularly suitable for slow and low pre-cooling of the filaments receive. This leads in particular to a very uniform thread cross-section.
- Fig. 3 further embodiments of an inlet cylinder are shown, the Wall 7 is formed to different flow profiles.
- the wall 7 is formed in the permeable zones by a wire mesh.
- wire mesh can also be advantageous through any other porous material such as a sintered material.
- the inlet cylinder is in a upper and a lower zone divided.
- the upper zone I has a larger one Gas permeability than the lower zone II.
- the resultant Flow profile leads to a larger amount of air in the upper zone I. occurs as in the lower zone II.
- Such an arrangement is special advantageous to have a high uniform cooling effect and a uniform To achieve air volume distribution within the spinning shaft.
- the filament speed is relatively low and the distance between the filaments relatively large, so that the amount of air in the Can distribute spinning shaft. As already described for FIG. 2, this also occurs an increase in the amount of air within a zone due to the constant gas permeability
- an upper zone I, a middle zone II and a lower zone III In the embodiment shown in Fig. 3.2, an upper zone I, a middle zone II and a lower zone III.
- a relatively small amount of air is directed into the spinning shaft.
- the air volume is greater in the upper zone I and the lower zone III executed.
- This arrangement favors both the air volume distribution inside the spinning shaft as well as the run-in behavior of the filament bundle in the cooling pipe. Due to the large amount of air in the lower zone III this is Filament bundles constricted more strongly when entering the cooling tube, so that none Filaments can hit the walls.
- the wall of zones II and III is designed in such a way that it is uniform over the length of the zone Air volume distribution. For this purpose, the gas permeability in the The wall decreases with increasing distance from the spinneret.
- FIG. 3.3 an embodiment is shown in which an upper zone I of the Inlet cylinder 4 has a gas-impermeable wall 7.
- the lower zone II has a triangular flow profile, with the largest amount of air enters the spinning shaft 6.
- This arrangement is special suitable to first of all a uniform formation of the filament strands in the Get rest area. Only when the filaments melt in the Having solidified the outside area, there is an air flow in the cooling shaft directed. This arrangement is particularly suitable for threads with low To produce thread titers.
- a heater 31 is arranged between the Inlet cylinder 4 and the spinner 1.
- the Heating device 31 leads to a thermal treatment of the filaments, so that further slowed cooling occurs.
- the heater can be arranged with any previously described embodiment of the intake cylinder can be combined.
- the inlet cylinder 4 has an upper one Zone with the perforation 37 and a lower zone with the perforation 26. by virtue of the different hole diameters of the holes 37 and 26 result the sybolized flow profiles 28 and 27. Thus occurs in the upper Zone of the intake cylinder 4 a smaller amount of air than in the lower zone of the Inlet cylinder 4 in the inlet cylinder 4.
- Exemplary embodiments of the spinning device described in FIG. 4 shown embodiment of the air flow entering the inlet cylinder 4 in Direction of thread running, so that the filaments move in the direction of the cooling tube 8 directly with the entry of the air quantity with large Flow component are supported.
- the inlet openings 38 the perforation 37 in the upper zone of the inlet cylinder 4 obliquely with a Inclination in the thread running direction introduced into the wall 7.
- the diameter of the inlet opening 38 is in a predetermined ratio so forceful that there is a directional flow upon entry into the inlet cylinder 4 trains.
- the lower zone of the inlet cylinder 4 has a perforation 26 radially directed inlet openings 38.
- baffles 39 Inside the inlet cylinder 4 are several baffles 39 attached to the wall 7.
- the baffles 39 protrude from the wall 7 with an inclination in the thread running direction inside the Inlet cylinder 4 into it.
- the guide plates 39 could also be adjusted in their inclination be executed.
- the inlet cylinder in a variety can be divided by zones to create an even flow profile receive.
- the combination of perforation and baffles In the inlet cylinder another possibility is given to the flow of the cooling air and to influence the cooling of the filaments in the cooling tube.
- Fig. 5 is an example Flow profile 32 shown, for example, in the middle of the Cooling tube 8 of the spinning device according to FIG. 1 tends to set.
- the length of the arrows is the flow velocity of the air flow inside the flow profile or the cooling tube.
- Fig. 6 are several embodiments of nozzle bore arrangements shown within the spinneret 2.
- a spinneret 2 is shown in FIG which arranged the nozzle holes 33 in a row 34 of holes are.
- the nozzle bores 33 are each the same in the row 34 of bores Distance introduced to each other in the spinneret.
- Through the closed Bore row 34 is formed in the central region of the spinneret Entry zone 35 included.
- FIG. 6.2 shows another spinneret 2, in which two Bore rows 34 and 36 are introduced in a ring shape in the spinneret.
- the Nozzle bores 33 of the two rows of bores 34 and 36 are of this type staggered that the nozzle holes of the inner Bore row 36 each between two adjacent nozzle holes outer row of holes 34 are arranged.
- the spinneret from Fig. 6.1 and the spinneret of Fig. 6.2 are in their nozzle bore arrangements on the 5 designed flow profile in the cooling tube.
- the interpretation is based here that the cooling tube 8 of FIG. 1 has a circular cross section having.
- the flow profile thus also leads to a circular one Arrangement of the nozzle bores.
- When using a cooling pipe with an oval cross section or a square cross section would inevitably result in different flow profiles, resulting in a changed Arrangement of the nozzle bores within the spinneret leads.
- the invention is not related to any particular shape of the intake cylinder and of the cooling tube limited.
- the round shapes shown in the versions are exemplary and can be easily with oval training or with rectangular spinnerets even angular designs of the inlet cylinder and Cooling tube to be replaced.
- the spinneret is accordingly in theirs Variable design.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Description
Die EP 0 580 977 oder die DE 195 35 143 beschreiben ebenfalls Spinnvorrichtungen. Bei diesen bekannten Spinnvorrichtungen ist der Einlaßzylinder unterhalb der Spinndüse mit in Fadenlaufrichtung sich verändernder Luftdurchlässigkeit ausgeführt, um eine Abkühlung der Filamente in Abhängigkeit von der Fadenlaufgeschwindigkeit zu erhalten. Die bekannten Spinnvorrichtungen bezwecken eine vollkommene Abkühlung der Filamente innerhalb des Einlaßzylinders und sind somit ungeeignet, um eine die Filamentbewegung unterstützende Luftströmung bei nur vorgekühlten Filamenten zu erzeugen.
- Fig. 1
- eine erfindungsgemäße Spinnvorrichtung mit nachgeschalteter Aufspuleinrichtung;
- Fig. 2
- einen Einlaßzylinder der in Fig. 1 gezeigten Spinnvorrichtung;
- Fig. 3
- verschiedene Wandausführungen des Einlaufzylinders mit entsprechendem Strömungsprofil;
- Fig. 4
- ein weiteres Ausführungsbeispiel der erfindungsgemäßen Spinnvorrichtung.
- Fig. 5
- ein Beispiel eines Strömungsprofils innerhalb des Kühlrohres der in Fig. 1 gezeigten Spinnvorrichtung;
- Fig. 6
- mehrere Ausführungsbeispiele einer Spinndüse;
- 1
- Spinnkopf
- 2
- Spinndüse
- 3
- Schmelzeleitung
- 4
- Einlaßzylinder
- 5
- Filamente
- 6
- Spinnschacht
- 7
- Wandung
- 8
- Kühlrohr
- 9
- Einlaufkegel
- 10
- Auslaufkegel
- 11
- Auslaufkammer
- 12
- Faden
- 13
- Auslaßöffnung
- 14
- Saugstutzen
- 15
- Saugeinrichtung
- 16
- Präparationseinrichtung
- 17
- Behandlungseinrichtung
- 18
- Verwirbelungsdüse
- 19
- Kopffadenführer
- 20
- Aufspulvorrichtung
- 21
- Changiereinrichtung
- 22
- Andrückwalze
- 23
- Spule
- 24
- Spulspindel
- 25
- Spindelantrieb
- 26
- Lochung
- 27
- Einströmprofil
- 28
- Einströmprofil
- 29
- Lochung
- 30
- Siebzylinder
- 31
- Heizeinrichtung
- 32
- Strömungsprofil
- 33
- Düsenbohrungen
- 34
- Bohrungsreihe
- 35
- Einlaufzone
- 36
- Bohrungsreihe
- 37
- Lochung
- 38
- Eintrittsöffnung
- 39
- Leitblech
Claims (24)
- Spinnvorrichtung zum Spinnen eines synthetischen Fadens (12), welcher durch Zusammenfassen einer Vielzahl von einzelnen Filamenten (5) gebildet ist und welcher mittels einer der Spinnvorrichtung nachgeschalteten Aufspulvorrichtung (20) zu einer Spule (23) aufgewickelt wird, mit einer Spinndüse (2), welche auf der Unterseite eine Vielzahl von Düsenbohrungen zum Extrudieren der Filamente (5) aufweist, mit einem unterhalb der Spinndüse (2) angeordnetem Kühlrohr (8), welches von den Filamenten (5) zum Zwecke der Abkühlung durchlaufen wird und welches einen Einlaufkegel (9) zur Beschleunigung eines Luftstromes in Fadenrichtung aufweist, mit einem Luftstromerzeuger (15) zur Erzeugung eines Luftstromes im Kühlrohr (8), welcher derart mit dem Kühlrohr (8) verbunden ist, daß der Luftstrom im Kühlrohr (8) in Fadenlaufrichtung erzeugbar ist, und mit einem zwischen der Spinndüse (2) und dem Kühlrohr (8) angeordneten gasdurchlässigen Einlaßzylinder (4), welcher von den Filamenten (5) durchlaufen wird und durch welchen eine im wesentlichen radial eintretende Luftmenge dem Einlaufkegel (9) zur Erzeugung des Luftstroms im Kühlrohr (8) zugeführt wird, dadurch gekennzeichnet, daß der Einlaßzylinder (4) in Fadenlaufrichtung in mehrere Zonen mit jeweils unterschiedlicher Gasdurchlässigkeit der Wandung (7) zur Steuerung der in den Einlaßzylinder (4) eintretenden Luftmenge unterteilt ist, um den die Filamentbewegung unterstützenden Luftstrom bei nur vorgekühlten Filamenten (5) bereitzustellen.
- Spinnvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Einlaßzylinder (4) eine zur Spinndüse (2) gewandte obere Zone und eine zum Kühlrohr (8) gewandte untere Zone aufweist und daß die obere Zone mit einer größeren Gasdurchlässigkeit in der Wandung (7) ausgebildet ist als die untere Zone.
- Spinnvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Einlaßzylinder (4) eine zur Spinndüse (2) gewandte obere Zone und eine zum Kühlrohr (8) gewandte untere Zone aufweist und daß die obere Zone mit einer kleineren Gasdurchlässigkeit in der Wandung (7) ausgebildet ist als die untere Zone.
- Spinnvorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß die Wandung (7) der oberen Zone gasundurchlässig ausgeführt ist.
- Spinnvorrichtung nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, daß zwischen der oberen Zone und der unteren Zone zumindest eine mittlere Zone ausgebildet ist und daß die mittlere Zone mit einer kleineren Gasdurchlässigkeit in der Wandung (7) ausgebildet ist als die untere Zone und/oder die obere Zone.
- Spinnvorrichtung nach einem der vorgenannten Ansprüche, dadurch gekennzeichnet, daß die Gasdurchlässigkeit der Wandung (7) des Einlaßzylinders (4) innerhalb einer Zone in Fadenlaufrichtung gleich ist
- Spinnvorrichtung nach einem der vorgenannten Ansprüche, dadurch gekennzeichnet, daß die Gasdurchlässigkeit der Wandung (7) des Einlaßzylinders (4) innerhalb einer Zone in Fadenlaufrichtung ungleich ist.
- Spinnvorrichtung nach einem der vorgenannten Ansprüche, dadurch gekennzeichnet, daß die Wandung (7) des Einlaßzylinders (4) aus einem Lochblech mit zonenweise unterschiedlicher Lochung (26, 29, 37) gebildet wird.
- Spinnvorrichtung nach Anspruch 8, dadurch gekennzeichnet, daß die Lochung (37) zumindest einer Zone aus einer Vielzahl von Eintrittsöffnungen (38) besteht, die die Wandung (7) des Einlaßzylinders (4) schräg mit einer Neigung zur Fadenlaufrichtung derart durchdringen, daß ein in Fadenlaufrichtung gerichteter Luftstrom in den Einlaßzylinder (4) eintritt.
- Spinnvorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die Wandung (7) des Einlaßzylinders (4) aus einem Drahtgewebe mit zonenweise unterschiedlicher Maschenweite gebildet wird.
- Spinnvorrichtung nach Anspruch 8 oder 10, dadurch gekennzeichnet, daß mehrere Lochbleche und/oder Drahtgewebe hintereinander in der Wand des Einlaßzylinders zusammengefaßt sind.
- Spinnvorrichtung nach einem der Ansprüche 8 bis 11, dadurch gekennzeichnet, daß eine Papiermanschette mantelförmig an der Wandung (7) des Einlaßzylinders (4) angelegt ist.
- Spinnvorrichtung nach einem der vorgenannten Ansprüche, dadurch gekennzeichnet, daß an der Wandung (7) im Innern des Einlaßzylinder (4) im Bereich zumindest einer Zone mehrere Leitbleche (39) befestigt sind, die von der Wandung (7) aus eine Neigung in Fadenlaufrichtung haben.
- Spinnvorrichtung nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, daß der Einlaßzylinder (4) wärmeübertragend mit einem die Spinndüse (2) haltenden Spinnkopf (1) verbunden ist.
- Spinnvorrichtung nach einem der vorgenannten Ansprüche, dadurch gekennzeichnet, daß der Luftstromerzeuger (15) eine Saugeinrichtung ist, welche auf der Auslaßseite des Kühlrohres (8) mit dem Kühlrohr (8) verbunden ist.
- Spinnvorrichtung nach einem der Ansprüche 1 bis 15, dadurch gekennzeichnet, daß die Anordnung der Düsenbohrungen (33) in der Spinndüse (2) derart gewählt ist, daß der beim Einlaufen des Filamentbündels in das Kühlrohr (8) erzeugte Luftstrom die Filamente (5) in ihrer Fortbewegung über den Rohrquerschnitt gleichmäßig unterstützt und gleichmäßig kühlt.
- Spinnvorrichtung nach Anspruch 16, dadurch gekennzeichnet, dass der Luftstromerzeuger eine Saugeinrichtung (15) ist, welche auf der Auslassseite des Kühlrohres (8) derart mit dem Kühlrohr verbunden ist, dass ein Luftstrom im Kühlrohr (8) in Fadenlaufrichtung erzeugt wird.
- Spinnvorrichtung nach Anspruch 16 oder 17, dadurch gekennzeichnet, daß das Kühlrohr (8) auf der Einlaßseite einen trichterförmigen Einlaufkegel (9) aufweist und daß die Düsenbohrungen (33) um eine sich in der Mitte des Filamentbündels ausbildende Einlaufzone (35) angeordnet sind.
- Spinnvorrichtung nach Anspruch 18, dadurch gekennzeichnet, daß die Einlaufzone in der Spinndüse (2) durch eine oder mehrere in sich geschlossene Bohrungreihe/n (34, 36) mit jeweils mehreren im gleichen Abstand zueinander angeordneten Düsenbohrungen (33) gebildet ist.
- Spinnvorrichtung nach Anspruch 19, dadurch gekennzeichnet, daß die Düsenbohrungen (33) benachbarter Bohrungsreihen (34, 36) in Richtung quer zur Spinndüse (2) versetzt zueinander angeordnet sind.
- Spinnvorrichtung nach einem der Ansprüche 16 bis 20, dadurch gekennzeichnet, daß die Düsenbohrungen (33) derart ringförmig angeordnet sind, daß die Filamente (5) des Filamentbündels mit einen im wesentlichen gleichen Abstand zu der Wandung (7) des Einlaßzylinders (4) in den Einlaßzylinder (4) einlaufen.
- Spinnvorrichtung nach einem der vorgenannten Ansprüche, dadurch gekennzeichnet, daß der Abstand zwischen der Spinndüse (7) und dem Kühlrohr (8) mindestens 100 mm bis maximal 1000 mm beträgt und daß das Kühlrohr im engsten Querschnitt einen Durchmesser von mindestens 10 mm bis maximal 40 mm aufweist.
- Spinnvorrichtung nach einem der vorgenannten Ansprüche, dadurch gekennzeichnet, daß eine Heizeinrichtung (31) zur thermischen Behandlung der Filamente zwischen der Spinndüse (2) und dem Einlaßzylinder (4) angeordnet ist.
- Spinnvorrichtung nach einem der Ansprüche 1 bis 22, dadurch gekennzeichnet, daß die am Umfang zumindest einer Zone des Einlaßzylinders (4) anstehende Umgebungsluft eine Temperatur von mindestens 35 °C bis maximal 350°C aufweist.
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DE19827518 | 1998-06-22 | ||
DE19827518 | 1998-06-22 | ||
DE19829046 | 1998-06-29 | ||
DE19829046 | 1998-06-29 | ||
PCT/EP1999/004225 WO1999067450A1 (de) | 1998-06-22 | 1999-06-17 | Spinnvorrichtung zum spinnen eines synthetischen fadens |
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EP1090170B1 true EP1090170B1 (de) | 2004-08-18 |
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EP99931100A Expired - Lifetime EP1090170B1 (de) | 1998-06-22 | 1999-06-17 | Spinnvorrichtung zum spinnen eines synthetischen fadens |
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US (1) | US6572798B2 (de) |
EP (1) | EP1090170B1 (de) |
JP (1) | JP2002519520A (de) |
KR (1) | KR100574198B1 (de) |
CN (1) | CN1141422C (de) |
DE (1) | DE59910294D1 (de) |
TW (1) | TW592220U (de) |
WO (1) | WO1999067450A1 (de) |
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WO2000047801A1 (de) * | 1999-02-12 | 2000-08-17 | Barmag Ag | Verfahren und vorrichtung zum spinnen eines synthetischen fadens |
DE50005349D1 (de) | 1999-09-07 | 2004-03-25 | Barmag Barmer Maschf | Verfahren zum schmelzspinnen |
AU2001265875A1 (en) | 2000-04-18 | 2001-10-30 | Barmag Ag | Spinning device |
KR20030058353A (ko) * | 2001-12-31 | 2003-07-07 | 백석기 | 열가소성 합성섬유세사 방사장치의 냉풍 제어방법 및제어장치 |
WO2006097281A1 (en) * | 2005-03-18 | 2006-09-21 | Diolen Industrial Fibers B.V. | Process for producing polyphenylene sulfide filament yarns |
JP2007031892A (ja) * | 2005-07-28 | 2007-02-08 | Teijin Fibers Ltd | 糸条冷却装置 |
DE102005043609A1 (de) * | 2005-09-13 | 2007-03-22 | Technische Universität München | Verfahren und Vorrichtung zur Herstellung eines Fadens aus Seidenproteinen |
US20080006970A1 (en) * | 2006-07-10 | 2008-01-10 | General Electric Company | Filtered polyetherimide polymer for use as a high heat fiber material |
US9416465B2 (en) * | 2006-07-14 | 2016-08-16 | Sabic Global Technologies B.V. | Process for making a high heat polymer fiber |
EP2061919B1 (de) * | 2006-11-10 | 2013-04-24 | Oerlikon Textile GmbH & Co. KG | Verfahren und vorrichtung für schmelzspinnen und kühlen von kunstfasern |
US7648358B1 (en) * | 2008-10-08 | 2010-01-19 | Holon Seiko Co., Ltd. | Plastic pellet forming apparatus |
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US11408096B2 (en) | 2017-09-08 | 2022-08-09 | The Board Of Regents Of The University Of Texas System | Method of producing mechanoluminescent fibers |
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WO2020172207A1 (en) * | 2019-02-20 | 2020-08-27 | Board Of Regents, University Of Texas System | Handheld/portable apparatus for the production of microfibers, submicron fibers and nanofibers |
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CN112853515B (zh) * | 2020-12-31 | 2022-04-15 | 江苏恒科新材料有限公司 | 一种轻量吸汗速干仿醋酸聚酯纤维及其制备方法 |
CN112760729B (zh) * | 2020-12-31 | 2022-04-15 | 江苏恒科新材料有限公司 | 一种熔融纺丝基态冷却装置 |
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- 1999-06-17 DE DE59910294T patent/DE59910294D1/de not_active Expired - Fee Related
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- 1999-06-17 EP EP99931100A patent/EP1090170B1/de not_active Expired - Lifetime
- 1999-06-17 KR KR1020007013012A patent/KR100574198B1/ko not_active IP Right Cessation
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WO1995015409A1 (de) * | 1993-12-03 | 1995-06-08 | Rieter Automatik Gmbh | Schmelzspinnverfahren für filamente |
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DE102014202934B4 (de) * | 2013-02-19 | 2021-06-02 | Tmt Machinery, Inc. | Garnkühlvorrichtung |
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KR100574198B1 (ko) | 2006-04-27 |
CN1304463A (zh) | 2001-07-18 |
TW592220U (en) | 2004-06-11 |
WO1999067450A1 (de) | 1999-12-29 |
DE59910294D1 (de) | 2004-09-23 |
KR20010034877A (ko) | 2001-04-25 |
US6572798B2 (en) | 2003-06-03 |
JP2002519520A (ja) | 2002-07-02 |
CN1141422C (zh) | 2004-03-10 |
US20010033037A1 (en) | 2001-10-25 |
EP1090170A1 (de) | 2001-04-11 |
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