EP1831441A1 - Vorrichtung zur herstellung, behandlung und weiterverarbeitung von synthetischen fasern - Google Patents
Vorrichtung zur herstellung, behandlung und weiterverarbeitung von synthetischen fasernInfo
- Publication number
- EP1831441A1 EP1831441A1 EP05850247A EP05850247A EP1831441A1 EP 1831441 A1 EP1831441 A1 EP 1831441A1 EP 05850247 A EP05850247 A EP 05850247A EP 05850247 A EP05850247 A EP 05850247A EP 1831441 A1 EP1831441 A1 EP 1831441A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- permanent magnet
- drive
- magnet motor
- rollers
- shaft
- 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.)
- Granted
Links
- 238000012545 processing Methods 0.000 title claims abstract description 30
- 229920002994 synthetic fiber Polymers 0.000 title claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 53
- 238000002788 crimping Methods 0.000 claims description 34
- 238000009987 spinning Methods 0.000 claims description 34
- 238000004519 manufacturing process Methods 0.000 claims description 13
- 238000005520 cutting process Methods 0.000 claims description 11
- 230000001360 synchronised effect Effects 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 239000012209 synthetic fiber Substances 0.000 claims description 6
- 239000000835 fiber Substances 0.000 description 31
- 238000001816 cooling Methods 0.000 description 8
- 239000002657 fibrous material Substances 0.000 description 7
- 238000002360 preparation method Methods 0.000 description 7
- 238000004804 winding Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000000151 deposition Methods 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 239000004745 nonwoven fabric Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000010128 melt processing Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 241001537210 Perna Species 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic 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
- D01D13/00—Complete machines for producing artificial threads
Definitions
- the invention relates to a device for the production, treatment and further processing of synthetic fibers according to the preamble of claim 1.
- Such devices are usually placed next to each other in several machine halls, so that a plurality of simultaneously driven process units are operated and thus a non-negligible noise pollution of the entire system occurs, affecting in particular handling at the beginning of the process and maintenance by operators.
- the gear units driven by a gearbox require a longer service cycle, resulting in undesirable process interruptions.
- the invention has the particular advantage that the proportion of directly driven by the electric motor process unit can be significantly increased. Thus, additional gear can be saved, since in particular permanent magnet motors are known to transmit high torques at relatively low speeds.
- the driven by a Permanentmagenet motor process units have a higher dynamics and flexibility, so that different applications without changes such as a gearbox replacement are possible.
- the permanent magnet motors are each designed as synchronous motors, in which a plurality of permanent magnets are arranged on an annular rotor.
- the diameter of the rotor in relation to its length is relatively large, so that there is a very short and compact construction variant of the electric motor.
- the high torques generated by the permanent magnet motor at low speeds can be advantageously transferred by the development of the invention, in which the synchronous motor for coupling a Wei- lenabiteses on the rotor has a Hohlwellenaufhahrne, in which the shaft portion can be inserted.
- the shaft portion may be formed directly at one end of a drive shaft of one of the process units.
- individual drive solutions of the process units can be realized.
- the development of the invention is particularly advantageous, in which the permanent magnet motor is connected to a control unit which is coupled at least to a sensor means assigned to the process unit.
- the actual value of a drive speed of the process unit sensed by the sensor means or directly a guide speed can be adjusted with a respective predetermined setpoint value and continuously regulated.
- the supply of the fiber material required process uniformity is particularly ensured.
- the development of the invention is advantageously used, in which at least several process units such as an extruder, a spinning pump, a guide roller, a drafting, a crimping device or a cutting device are driven directly by permanent magnet motors.
- the processing units such as an extruder, a spinning pump, a depositing device, a calender or a nonwoven winding device can preferably be directly driven by a permanent magnet motor.
- FIG. 1 shows schematically a view of a first embodiment of the device according to the invention
- FIG. 2 schematically shows a cross-sectional view of a processing unit of the exemplary embodiment from FIG. 1.
- FIG. 3 is a schematic side view of a processing unit of the embodiment of FIG. 1
- FIG. 4 is a schematic view of a further process unit of the exemplary embodiment from FIG. 1;
- FIG. 5 is a schematic cross-sectional view of a permanent magnet motor for direct drive of a process unit
- Fig. 6 shows schematically a view of another embodiment of the device according to the invention
- a first embodiment of a device according to the invention for the single-stage production of staple fibers is shown schematically.
- Such devices are generally known in the art as compact spinning machines for the production of staple fibers, preferably of polypropylene.
- the compact spinning systems are available with spinning speeds in the range of max. 250 m / min, operated. This means that very high production capacities of up to 50 t / day can be achieved.
- the exemplary embodiment of the inventive apparatus includes a plurality of Be ⁇ on processing stations, which form from a melt processing 1 to a cutting device 9 for cutting the synthetic fibers have a process follow.
- Melt preparation 1 is followed by a spinning device 2, a drawing device 3, a stretching device 4, a spinning cable laying device 5, a crimping device 6, a drying device 7 and a tension adjusting device 8 upstream of the cutting device 9.
- a spinning device 2 a drawing device 3
- a stretching device 4 a spinning cable laying device 5
- a crimping device 6 a drying device 7
- a tension adjusting device 8 upstream of the cutting device 9.
- Each of the processing stations has one or more driven processing units.
- the melt preparation 1 contains an extruder 10 with an extruder drive 11.
- the extruder 10 is charged with a polymer in the form of granules and melted.
- the molten polymer melt melted by the extruder 10 is fed to the next processing station of the spinning device 2.
- the spinning device 2 has a plurality of spinning stations 12.1, 12.2 and 12.3.
- the number of spinning stations of the exemplary embodiment shown in FIG. 1 is exemplary.
- Each of the spinning stations 12.1, 12.2 to 12.3 is constructed identically, so that this is explained in more detail with reference to the spinning station 12.1.
- a preferably annular spinneret 15 is provided, which has a plurality of nozzle bores on its underside.
- the spinneret 15 is connected to a spinning pump 13, which supplies the spinneret 15 with a melt stream under pressure.
- the spinning pump 13 is driven directly by a pump drive 14 for this purpose.
- the spinnerets 15 of the spinning stations 12.1, 12.2 and 12.3 are arranged in a heated spinning beam.
- Below the spinnerets 15 a substantially centrally disposed to the spinneret 15 cooling device 16 is provided below the spinnerets 15 .
- the cooling device 16 is designed as an injection, in which a cooling air flow is generated from an annular blowing nozzle, so that the cooling air is conveyed through the fiber strands formed annular veil from the inside out penetrates and cools the fiber strands.
- the cooling air of the cooling device 16 is supplied from above through the spinning beam ⁇ .
- the trigger device 3 is arranged downstream.
- the removal device 3 is located directly underneath the spinning device 2.
- the removal device 3 has a plurality of preparation rollers 17 and take-off rollers 18.
- the preparation rollers 17 and the take-off rollers 18 are driven independently of each other. In this case, in particular the take-off rolls 18 can be jointly driven by a group drive or separately by individual drives.
- the draw-off device 3 the fiber strands 30 of the spinning stations 12.1, 12.2 and 12.3 are drawn off and deflected out of a vertical guide.
- the multiplicity of fiber strands that are brought together by the preparation rollers 17, which are referred to as tows, are subsequently taken over by a stretching device 4.
- the stretching device 4 has two draw frames 19.1 and 19.2 arranged one behind the other in the direction of fiber travel. Between the drafting units 19.1 and 19.2, a hot stretching channel 21 is arranged. Within the hot stretch channel 21, the fiber strands 30 can be tempered to a predetermined temperature by means of hot air or by means of a superheated steam. Each of the drafting units 19.1 and 19.2 has in each case a plurality of draw rollers 20, which guide the fiber strands 30 with simple looping.
- the drafting rollers 20 of the drafting systems 19.1 and 19.2 are driven by a group drive, wherein the drafting rollers 20 of the drafting system 19.2 are operated with respect to the drafting rollers 20 of the drafting system 19.1 at a higher peripheral speed for setting a specific drafting ratio.
- the drafting rollers 20 of the two drafting systems 19.1 and 19.2 depending on the require ⁇ tion a cooled roll shell or a heated roll shell.
- the formation of the group drive for the drafting rollers 20 of the stretching ⁇ works 19.1 and 19.2 will be described in more detail below.
- the juxtaposed tows are merged into a tow within the towfitting apparatus 5.
- the spinning cable laying device in the inlet region on a driven separating roller 22 and a driven collecting roller 24 at the output.
- a plurality of dividing rollers 23 are arranged one above the other in order to guide the spinning cable to the separating roller 22 side by side guided in a common plane, so that at the collecting roller 24, the tow are merged into a tow.
- the crimping device 6 has two driven crimping rollers 25, which are arranged one above the other to form a nip. On the outlet side of the nip, a stuffer box 26 connects. The formation of the group drive of the crimping rollers 25 will be described in more detail below.
- the drying device 7 is formed by a furnace 66, through which the fiber strands are continuously guided.
- the tension adjuster 8 has a plurality of driven guide rollers 27 for securing the fiber strands from the dryer.
- a driven cutting head 28 is provided in the cutting device 9, through which the fiber strands 30 are cut into small pieces and taken up by a fiber collector 29.
- the drives of the individual processing units not shown in detail in FIG. 1 can be formed by individual drives or group drives, in which the process unit is driven directly by an electric motor or in which the process unit is driven by the interposition of a transmission.
- the device according to the invention is characterized by a plurality of directly driven process units even at such low process speeds.
- Fig. 2 and 3 for this purpose the drafting system 19.1 is shown in several views with a group drive 45.
- Fig. 2 shows the device in a cross-sectional view and Fig. 3 in a side view.
- the following description applies to both figures. Since the drafting systems 19.1 and 19.2 of the embodiment of FIG. 1 are constructed substantially identical, the following explanation applies to drafting systems 19.1 and 19.2. However, it should be mentioned at this point that the structure of the drafting systems 19.1 could also be completely different depending on the process.
- a plurality of offset from each other stretching rollers 20.1 to 20.5 are arranged on a frame wall 32 .
- the drafting rollers 20.1 to 20.5 are held cantilevered on the frame wall 32 and rotatably supported in the frame wall 32 via drive shafts 31.1 to 31.5.
- Each of the drive shafts 31.1 to 31.5 has at the bearing portion within the frame wall 2, a gear 33.1 to 33.5, which is fixedly connected to the circumference of the respective drive shaft 31.1 to 31.5.
- the gears 33.1 to 33.5 are of identical design and engage with each other.
- the drive shafts 31.1 to 31.5 protrude with a free end on the back of the frame wall 2. This free end of the drive shafts 31.1 to 315 usually represents a connection option for controlling the temperature of the rollers.
- the group drive 45 for driving the draw rolls 20. 1 to 20. 5 has a permanent magnet motor 34.
- the permanent magnet motor 34 is connected via a rotor shaft 39 and a coupling 38 with a Intermediate shaft 35 connected.
- the intermediate shaft 35 is rotatably mounted in the frame ⁇ wall 32 and protrudes with the drive end on the back of the frame wall 32.
- a gear 36 is arranged, which is in engagement with a gear 37.
- the gear 37 is arranged on the circumference of the drive shaft 31.2.
- the direct drive of the rollers 31.1 to 31.5 takes place such that the intermediate shaft 35 is driven directly by the rotor shaft 39 of the permanent magnet motor 34 at a predetermined drive speed.
- the rotational movement of the intermediate shaft 35 is transmitted synchronously to the drive shaft 31.2.
- the meshing gears 36 and 37 are identical in their diameter.
- the drive of the adjacent drive shaft 31.1 and 31.3 to 31.5 are driven at identical peripheral speeds directly by the permanent magnet motor 34.
- the crimping device 6 consists essentially of two crimping rollers 25.1 and 25.2 rotatably mounted in a machine frame 41 and the stuffer box 26 downstream of the crimping rollers 25.1 and 25.2.
- FIG. 4 shows the stuffer box 26 in a cross-sectional view.
- a nip 40 is formed in order to be able to pull in the fiber material and to curl it by buckling.
- Each of the crimping rollers 25.1 and 25.2 is coupled to a drive shaft 31.1 and 31.2.
- the drive shaft 31.1 of the upper crimping roller 25.1 is connected at a drive end directly to a permanent magnet motor 34.1.
- the lower crimping roller 25.2 is connected via the drive shaft 31.2 directly to a second permanent magnet motor 34.2.
- the distance between the crimping rollers 25.1 and 25.2 is changeable.
- the upper crimping roller 25.1 with the drive shaft 31.1 and the permanent magnet motor 34.1 is preferably held adjustably in the machine frame 41 relative to the lower crimping roller 25.2.
- the mechanical means required for holding and guiding the upper crimping roller 25.1 are not shown in FIG. 4 and are not described in greater detail here.
- the crimping roller 25.1 is usually held on a pivoting support, which can be driven by a piston-cylinder unit. In this case, the piston-cylinder unit is used to hold the upper crimping roller 25.1 in a nip 40 determining operating position.
- each motor 34.1 and 34.2 is preceded by a respective control unit 42.1 and 42.2, which is coupled to the motors.
- the control devices 42.1 and 42.2 are associated with sensor means 43.1 and 43.2, which detect the rotational speeds or rotor position of the motors 34.1 and 34.2.
- a control unit 44 is arranged upstream of the control units 42.1 and 42.3.
- the control units 42.1 and 42.2 give a target specification of the drive speeds, so that the two permanent-magenet motors 34.1 and 34.2 drive the associated drive shafts 31.1 and 31.2 with identical settings.
- the crimping rollers 25.1 and 25.2 are driven at the same peripheral speeds.
- the control of the permanent magnet motors 34.1 and 34.2 is monitored by sensor means 43.1 and 43.2.
- the sensor means 43.1 and 43.2 could be designed as a position sensor or Dreiere toneler.
- the permanent magnet motors 34.1 and 34.2 are preferably designed as synchronous motors in order to drive the rollers at constant peripheral speeds.
- the embodiment of the crimping device illustrated in FIG. 4 is characterized by a direct drive of the crimping rollers, so that no additional mechanical means are required for the transmission or for the coupling of the drive shafts.
- the crimping device is designed with a particularly compact and essential maintenance-free group drive.
- the permanent magnet motors could also be replaced by sensorless variants in which the control of the motors is carried out by software.
- a possible construction variant of a permanent magnet motor in the form of a synchronous motor is shown in a cross-sectional view, as it would be used for example for driving the draw rolls 20 or the crimping rollers 25.
- the permanent magnet motor which is also known as a so-called torque motor, has a hollow shaft receptacle 48, in which a shaft portion 54 of a drive shaft, for example, the drive shaft 31.1, a crimping roller is plugged in.
- the hollow shaft receptacle 48 is formed in a housing 46 of the Perna mentmagnet motor. In the housing 46, an annular stator 47 is attached.
- the stator 47 encloses a ring-shaped inside the stator 47 rotor 51, which carries a plurality of juxtaposed permanent magnets on the periphery.
- the permanent magnets 52.1 and 52.2 are shown.
- the rotor 51 is rotatably supported by the bearing 49 in the housing 46.
- On one end face of the rotor 51 is fixedly connected to a collar of a ring bush 50.
- the ring bushing 50 is rotatably coupled to the circumference of the shaft portion 54.
- the shaft portion 54 is supported by the bearing 53 in the housing 46.
- the permanent magnet motor shown in FIG. 5 and designed as a synchronous motor represents a preferred drive variant for direct driving of rolls.
- the use of permanent magnets with constant magnetic flux in the air gap enables a high power output at low speeds.
- the permanent magnet motor is particularly suitable to directly drive the process units in the illustrated in Fig. 1 exemplary embodiment of the inventive device.
- the drive substantially maintenance-free process units are executable, so that the inventive device as a whole system has a high productivity due to fewer maintenance cycles.
- the high proportion of directly driven process units allows greater freedom to make process changes in the production and treatment of fiber material.
- FIG. 6 a further embodiment of a device according to the invention is shown schematically.
- the processing stations arranged one behind the other are used to produce a spunbonded fabric from a plastic material presented.
- the processing stations and Process units here have identical reference numerals held insofar as their function is identical to the previous embodiment.
- the apparatus has a melt preparation 1, a spinning device 2, a depositing device 55, a calender device 56 and a nonwoven winding device 57.
- a plastic granulate is melted by an extruder 10, which is driven by an extruder drive 11, and fed as polymer melt via a line system of the spinning device 2.
- the spinner device 2 has a spinner head 63 with a substantial spinneret formed in a row-like arrangement. Below the spinning head 63, a take-off nozzle 64 is provided to draw off the fiber strands extruded through the spinneret bores and feed them to a depositing device 55.
- the storage device 55 consists of a driven conveyor belt 58, which is guided by drive rollers 59.
- a calender 56 is arranged for solidifying the thermoplastic web having a plurality of driven calender rolls 60.
- the calender 56 is followed by a nonwoven wrap 57, which has a driven winding support 61 which is rotatably supported in a machine frame.
- the embodiment of the device according to the invention shown in FIG. 6 is provided for producing a spunbonded nonwoven fabric.
- the melt-spun fiber strands 30 are deposited as a curtain having a predetermined width to form a nonwoven 62.
- the web 62 is fed to the calender 56 after being deposited by the conveyor 58. Between the driven calender rollers 60 nips are formed through which the web is led to solidification. After solidification, the nonwoven 62 is wound up into a nonwoven roll 65.
- a permanent magnet motor 34 is provided in each case.
- the permanent magnet motor 34 according to the embodiment of FIG. 5 can connect directly to a drive shaft of the drive rollers 59 or the drive shaft of the calender roll 60.
- winding carrier 61 is driven directly by a permanent magnet motor.
- FIGS. 1 and 6 are exemplary in their type and sequence of operation of the processing stations and the construction of the process units.
- a tow is produced and deposited in a jug.
- several tows are withdrawn from cans and cut as tow into fibers.
- they can also be passed through draw rolls with multiple wrapping.
- the device according to the invention is characterized by a particularly low-noise overall system which, due to the good control properties of the direct drives, exhibits high process uniformity in the guidance of the fiber material. LIST OF REFERENCE NUMBERS
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Nonwoven Fabrics (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004059509 | 2004-12-10 | ||
| PCT/EP2005/013227 WO2006061236A1 (de) | 2004-12-10 | 2005-12-09 | Vorrichtung zur herstellung, behandlung und weiterverarbeitung von synthetischen fasern |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1831441A1 true EP1831441A1 (de) | 2007-09-12 |
| EP1831441B1 EP1831441B1 (de) | 2011-06-29 |
Family
ID=35809662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP05850247A Expired - Lifetime EP1831441B1 (de) | 2004-12-10 | 2005-12-09 | Vorrichtung zur herstellung, behandlung und weiterverarbeitung von synthetischen fasern |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1831441B1 (de) |
| CN (1) | CN101072902A (de) |
| WO (1) | WO2006061236A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927252A (zh) * | 2012-11-14 | 2013-02-13 | 张家港市兰航机械有限公司 | 压延机中的传动齿轮箱 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3475523A (en) * | 1965-09-23 | 1969-10-28 | Monsanto Co | Monitored melt spinning method and apparatus |
| DE2911379C3 (de) * | 1979-03-23 | 1995-02-23 | Zinser Textilmaschinen Gmbh | Lange Spinnmaschine |
| JPH09233763A (ja) * | 1996-02-28 | 1997-09-05 | Shinko Electric Co Ltd | 同心二軸同時回転装置 |
| DE29620736U1 (de) * | 1996-11-29 | 1997-01-23 | Skf Textilmaschinen-Komponenten Gmbh, 70376 Stuttgart | Antriebs- und Lagervorrichtung für eine Transportwalze für Textilfasern |
| JP4341095B2 (ja) * | 1999-01-22 | 2009-10-07 | チッソ株式会社 | 熱可塑性合成繊維の高速製造装置及び方法 |
-
2005
- 2005-12-09 WO PCT/EP2005/013227 patent/WO2006061236A1/de not_active Ceased
- 2005-12-09 EP EP05850247A patent/EP1831441B1/de not_active Expired - Lifetime
- 2005-12-09 CN CNA2005800422036A patent/CN101072902A/zh active Pending
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2006061236A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101072902A (zh) | 2007-11-14 |
| EP1831441B1 (de) | 2011-06-29 |
| WO2006061236A1 (de) | 2006-06-15 |
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