Classifications

• • D—TEXTILES; PAPER
  • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
  • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
  • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
  • D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
  • D02G1/0206—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting
  • D02G1/0266—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting false-twisting machines

Definitions

• the invention relates to a false twist texturing machine for false twist texturing of several synthetic threads according to the preamble of claim 1.
• false twist texturing machines of this type are used to curl melt-spun multifilament threads and, as far as possible, to simulate the threads in their structure and appearance to the natural fibers.
• the false twist texturing machine has a multiplicity of processing points, the thread being treated in each processing point by a plurality of position units for finishing.
• the thread is drawn and crimped in a false twist zone and, after crimping, is wound into a bobbin.
• the positioning units such as delivery units, heating device, cooling device and false twist unit, are fastened in a machine part so that a predetermined thread path is set.
• Such a false twist texturing machine is known for example from EP 0 641 877. False twist texturing machines of this type are constructed in such a way that a thread with a defined thread path and predetermined thread treatment is optimally crimped in each processing point.
• the false twist texturing machine has an inlet module for receiving the take-off delivery unit.
• Several intake devices for additional process units for guiding and treating a thread or several threads are provided on the inlet module.
• the inlet module thus ensures a flexible arrangement of additional process units that are required compared to a standard process to produce special fancy yarns.
• the invention has the particular advantage that for each yarn type that can be produced, an associated and already predetermined thread path can be selected by correspondingly arranging the process units in the inlet module.
• the additional process units are exchangeably connected to the inlet module by the receiving devices. This enables the process to be changed quickly, for example from the production of a standard yarn to the production of a fancy yarn.
• the advantageous development of the invention according to claim 3 is particularly suitable for firmly connecting the process units to the inlet module via the receiving devices.
• the process units that are required for the respective process are activated.
• Additional processing units, a drawing pin, a tanging device and / or a spool template can optionally be provided as additional process units for each processing point.
• the bobbin feed can be used to feed a second thread at the inlet or the process in order to produce a composite thread in the processing point.
• a thread drawn off the take-off mechanism could be additionally treated by means of a drawing pin or a tanging device before the false twist texturing.
• an operating aisle is formed between the inlet module and a process module.
• the process module carries at least some of the position units, such as false twist units and delivery units.
• the process units and the positioning units can preferably be operated by an operator from the operating aisle.
• the development of the invention according to claim 6 and claim 7 ensures that in the false twist texturing machine a non-crossing thread course is set. Due to the little deflected thread path, the thread can be guided in a very stable thread path regardless of the type of thread.
• the arrangement of the heating device of the cooling device above the service aisle also has the advantage that a sufficient length for heat treatment and cooling of the false twist thread can be realized.
• the modules combined to form a frame part also achieve a compact construction of the false twist texturing machine.
• Fadens is a second
• Heating device arranged on the underside of the frame part, which carries the process module and the winding module.
• the heater is preferably in arranged in a horizontally inclined position in order to produce a uniform heating of the thread by contact.
• the delivery mechanisms in each case by a godet wrapped in multiple threads with an associated overflow roller.
• the godet is driven by a single drive independent of neighboring supply plants.
• the godet is also particularly advantageous for changing the thread circulation, so that no further thread guide elements are required, for example, in the entrance area and in the exit area of the second heating device.
• the advantageous development of the invention according to claim 10 is particularly suitable for producing composite threads from, for example, a crimped thread and an elastic thread, which are brought together by a tang device immediately after the crimping.
• a tangle device is arranged on the process module in the thread run behind the false twist unit.
• FIG. 1 schematically shows a view of an embodiment of the false twist texturing machine according to the invention
• FIG. 4 schematically shows a further exemplary embodiment of the false twist texturing machine according to the invention 1 schematically shows a first embodiment of the false twist texturing machine according to the invention.
• the false twist texturing machine consists of an inlet module 3, a process module 2 and a winding module 1, which are arranged in a machine frame with the frame parts 4.1, 4.2 and 4.3.
• the inlet module 3 is carried by the frame part 4.1 and the process module 2 and the winding module 1 by the frame part 4.3.
• the frame part 4-1 and the frame part 4.3 are connected by a frame part 4.2, which is arranged above the inlet module 3 and the process module 2.
• An operating aisle 5 is formed between the process module 2 and the inlet module 3 below the frame part 4.2.
• the process module 2 is arranged on the side facing the operating aisle 5 and the winding module 1 on the opposite side.
• a doffing run 6 is provided along the winding module 1.
• a second take-up module 1 of a second false twist texturing machine is assigned to the exit 6, which is arranged in mirror image to the first false twist texturing machine. This means that the bobbins can be taken from two machines by a clearing device and transported away through the doffgang.
• the false twist texturing machine has in the longitudinal direction - in FIG. 1 the drawing plane is equal to the transverse plane - a multiplicity of processing points for one thread per processing point.
• the winding devices 18 have a width of three processing points. Therefore, in each case three winding devices 18 - this will be discussed later - are arranged one above the other in a column in the winding module 1.
• Each processing point has a take-off delivery unit 10, which is attached to the inlet module 3.
• the design of the inlet module 3 will be described elsewhere.
• the take-off delivery units 10 of adjacent processing stations are each assigned a gate 7, in which a plurality of supply spools 8 are provided for the removal of threads 36.
• One of the supply coils 8 is assigned to each take-off delivery unit 10.
• the thread 36 is drawn off via a plurality of deflecting thread guides 9 by the take-off delivery mechanism 10.
• the further position units of a processing point are described below on the basis of the thread path of the thread 36.
• an elongated heating device 11 through which the thread 36 runs, the thread being heated to a certain temperature.
• the heating device 11 could be designed as a high-temperature heater in which the heating surface temperature is above 300 ° C.
• a cooling device 12 is provided in the thread running direction behind the heating device 11.
• the heating device 11 and the cooling device 12 are arranged one behind the other in a plane and are held above the operating aisle 5 by the frame part 4.2.
• a deflection roller 9.3 is arranged in the entrance area of the heating device 11, so that the thread 36 crosses the operating aisle 5 in a V-shaped thread path.
• the heating device 11 and the cooling device 12 could, however, also be arranged in two roof-like planes.
• the process module 2 is arranged on the frame part 4.3 on the side of the operating aisle 5 opposite the inlet module 3.
• the process module 2 carries a false twist unit 13, a draw feed unit 14 and a set feed unit 15 in the thread running direction.
• the thread 36 is guided from the outlet of the cooling device 12, which is preferably formed by a cooling rail, to the false twist unit 13.
• the false twist unit 13, which can be formed, for example, by a plurality of overlapping friction disks, is driven by the false twist drive 26.
• the false twist drive 26 is preferably se uses an electric motor, which is also attached to the process module 2.
• the thread 36 is drawn out of the false twist zone which forms between the false twist unit 13 and the take-off feed unit 10 by the draw feed unit 14.
• the draw feed unit 14 and the take-off feed unit 10 are driven at a differential speed to draw the thread 36 in the false twist zone.
• the set delivery unit 15, which leads the thread 36 directly into a second heating device 16, is arranged below the draw delivery unit 14.
• the second heating device 16 is arranged on the underside of the frame part 4.3 and thus below the process module 2 and the winding module 1.
• the second heating device 16 forms the thread transition from the process module 2 to the winding module 1.
• a delivery mechanism 17 is arranged on the underside of the winding module 1, which immediately pulls the thread 36 out of the second heating device 16 and, after the thread 36 has been deflected, leads to the winding device 18.
• the set delivery unit 15 and the delivery unit 17 are driven at such a differential speed that shrinkage treatment of the thread 36 is possible within the second heating device 16.
• the second heating device 16 is formed here by a diphyl-heated contact heater.
• the second heating device 16 is arranged inclined at an angle ⁇ with respect to a horizontal.
• the angle ⁇ is in the range between 5 to 45 °. This ensures that the thread 36 receives a uniform heating caused by contact within the heating duct of the second heating device 16.
• the second heating device 16 is switched off or the second heating device 16 is replaced by a guide tube.
• the winding device 18 is schematically characterized by a traverse 20, a drive roller 19 and a spool 21.
• the winding device 18 also contains a tube magazine 22 in order to carry out an automatic bobbin change.
• the auxiliary devices required to replace the full bobbins are not shown here.
• Each delivery mechanism is formed by a godet 23 and an overflow roller 24 assigned to the godet.
• the godet 23 is driven by a godet drive 25.
• the godet drive 25 is preferably formed by an electric motor.
• the overflow roller 24 is freely rotatably supported, the thread 36 being guided over the godet 23 and the overflow roller 24 with several loops.
• the embodiment of the swirl texturing machine shown in FIG. 1 does not contain any additional process units on the inlet module 3.
• the station assemblies are thus provided in order to draw and texturize a thread in a basic process.
• the thread 36 is drawn off from the supply spool 8 by the take-off delivery mechanism 10 and guided into the false twist zone.
• the false twist zone which is essentially formed between the false twist unit 13 and the deflection roller 9.3, the heating device 11 and the cooling device 12 are arranged one behind the other in one plane.
• the false twist generated by the false twist unit 13 in the thread 36 is returned to the heating device 11, which leads to a permanent crimp in the multifilament thread, which is then fixed in the cooling device 12.
• the thread 36 is drawn out of the false twist zone by the draw feed unit 14 and drawn.
• the stretch delivery plant 14 driven at a higher speed than the take-off delivery unit 10.
• a post-heat treatment is carried out, the yarn being conveyed through the set delivery unit 15 and the delivery unit 17 downstream of the second heating device.
• the thread 36 is then wound into a bobbin 21.
• the inlet module 3 can optionally be equipped with additional process units, as is shown schematically in FIG. 2, for example. 2.1 shows the inlet module without additional process units and FIG. 2.2 shows the inlet module 3 with additional process units.
• the overflow roller 24.1 is rotatably mounted on the carrier plate 27.
• the godet 23.1 is arranged with a godet drive 25 arranged on the opposite side of the carrier plate 27.
• the godet 24.1 is driven by the godet drive 25, which is designed, for example, as an electric motor, the thread being passed in multiple loops over the godet 23.1 and the overflow roller 24.1.
• a supply unit 29 and a stretching pin 32 are held in the carrier plate 27 of the inlet module 3 by the receiving devices 28.1 to 28.3 as additional process units.
• the delivery mechanism 29 is formed by the overflow roller 30 and the godet 31.
• the godet 31 is connected to a godet drive, not shown here.
• the Straightening pin 32 is preferably heated, but could also be used without heating.
• the arrangement of the inlet module 3 shown in FIG. 2.2 shows the thread path of the thread 36.
• the thread run according to the false twist texturing machine according to FIG. 1 could be composed as follows.
• the thread 36 is drawn off from the supply spool 8 by the take-off delivery mechanism 10.
• the thread 36 is guided from the take-off delivery unit 10 into a first stretching zone which extends between the godet 23.1 of the take-off delivery unit 10 and the godet 30 of the delivery unit 29.
• a heated stretching pin 32 is arranged within the stretching zone.
• the stretching pin 32 could be heated to a surface temperature in the range from 80 ° C to 160 ° C.
• the drawing pin 32 is wrapped in the thread and drawn off by the delivery mechanism 29.
• the stretching pin 32 could be assigned a thread guide, the position of which could be changed to set a specific wrap angle on the stretching pin 32.
• the thread thus pre-drawn is fed from the delivery unit 29 into the false twist texturing zone.
• the further thread run corresponds to the thread run already described for FIG. 1 in the false twist texturing machine.
• Appropriate thread tension setting in the drawing zone can produce advantageous effects in the thread which, after crimping, turn out to be thin / thick effects.
• FIG. 3 shows further exemplary embodiments of an inlet module 3, as would be used, for example, in the false twist texturing machine shown in FIG. 1.
• the run-up module 3 has a take-off unit 10, a further delivery unit 29 and a bobbin feeder 33 with a head thread guide for each processing point 34 on.
• the additional process units are also each held on the carrier plate 27 by a receiving device.
• the receiving devices 28.4 and 28.5 are introduced into the carrier plate 27 for additional process units.
• the embodiment of the inlet module 3 shown in FIG. 3.1 is particularly suitable for producing a composite thread, for example from a crimped thread and an elastic thread.
• the thread 36 is drawn off by the take-off mechanism 10 and fed to the false twist zone.
• a second thread 37 is drawn off by the delivery mechanism 29 from the supply spool 35 via the head thread guide 34.
• the supply coil 35 is arranged in the coil supply 33.
• the thread 37 could then be guided outside the false twist zone up to a tang device, which could preferably be attached behind the draw feed unit 14 of the false twist texturing machine shown in FIG. 1.
• the composite thread thus formed is wound up into a bobbin.
• the composite thread could previously be passed through the second heating device for the heat treatment.
• FIGS. 2 and 3 show a further exemplary embodiment of an inlet module 3, in which the inlet module 3 has the take-off delivery unit 10 and a further delivery unit 29. Both delivery plants are each formed by an overflow roller and a godet.
• a tanging device 38 is held between the delivery mechanisms 10 and 29 by a receiving device on the carrier plate 27 of the inlet module 3.
• the tang device 38 is connected to a compressed air source (not shown here), so that the thread 36 guided through a thread channel is swirled by a pressure scent stream. This pretreatment of the thread 36, which precedes the false twist crimp, leads to an improvement in the bulk of the thread in the crimped state.
• the exemplary embodiments of the inlet modules shown in FIGS. 2 and 3 can be combined in any form.
• the false twist texturing machine according to the invention can also be developed in such a way that the process module 2 opposite the inlet module 3 also carries receiving devices for additional units.
• a process module 2 for example an additional false twist unit, could be arranged per work station in order to bring together two crimped threads to form a composite thread.
• FIG. 4 A further exemplary embodiment of a false twist texturing machine according to the invention is shown schematically in FIG. 4.
• the structure of the machine frame and the arrangement of the position units are essentially identical to the previous exemplary embodiment according to FIG. 1. In this respect, reference is made to the previous description of FIG. 1 and only the differences are shown at this point.
• an inlet module 3 is used, which is designed in accordance with the exemplary embodiment according to FIG. 3.1.
• the inlet module 3 carries the spool template
• the thread 37 is from the supply bobbin 35 by a delivery mechanism 29 via the head thread guide
• the delivery mechanism 29 has a godet 31 and an overflow roller (not shown here).
• the godet 31 is driven by the godet drive 25.
• a further thread 36 is drawn off on one of the supply spools 8 and guided into a texturing zone.
• the two threads 36 and 37 are brought together by a tang device arranged after the false twist unit 13.
• the tang device 38 is arranged on the process module 2 between the stretching delivery unit 14 and an additional delivery unit 39 arranged upstream of the set delivery unit 15. With the additional delivery mechanism 39, the thread tensions required for the connection of the two threads 36 and 37 can thus advantageously be set.
• the composite thread formed from the threads 36 and 37 is then guided via the set delivery unit 15 through the secondary heating device 16 and by means of the delivery unit 17 to the winding device 18.
• the embodiment of the false twist texturing machine according to the invention shown in FIG. 4 can, however, also be used for false twist texturing of a thread without the provision of a second thread.
• the delivery mechanism 29 and the coil feed 33 on the inlet module 3 could be omitted.
• the thread 36 is swirled before the second heat treatment.
• the exemplary embodiments of the false twist Texmriermaschine shown in FIGS. 1 and 2 are exemplary in the design and structure of the position units. Basically, it is possible to drive the supply plants individually or in groups. Conventional clamp delivery systems can also be used instead of the godets. What is important here is the arrangement of the additional process units in the inlet module in the inlet area of the false twist texturing machine. The flexible design and design of the inlet module with additional process units increases the use Such false twist texturing machines to a considerable extent. Complicated conversion measures are not necessary.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Textile Engineering (AREA)
• Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

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• 2002
  • 2002-06-20 EP EP02751053A patent/EP1409777B1/de not_active Expired - Lifetime
  • 2002-06-20 DE DE50209779T patent/DE50209779D1/de not_active Expired - Fee Related
  • 2002-06-20 WO PCT/EP2002/006844 patent/WO2003002793A1/de active IP Right Grant
  • 2002-06-20 CN CNB02811647XA patent/CN100352985C/zh not_active Expired - Fee Related
  • 2002-06-20 JP JP2003508752A patent/JP2004530811A/ja active Pending
  • 2002-06-27 TW TW91114190A patent/TW565635B/zh not_active IP Right Cessation

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