JP5453004B2 - False twist fiber machine - Google Patents

Description

  The present invention relates to a false twist fiber machine for texturing a plurality of multifilament yarns described in the superordinate conceptual part of claim 1.

  A false twist fiber machine of the type mentioned at the outset is known, for example, from WO 2007/036242.

  When the yarn is false twisted and textured, the yarn is first withdrawn from the feed bobbin provided in advance. The feed bobbin yarn is manufactured in advance by a melt spinning process. In order to process melt spun multifilament yarns for textile products, the yarns are simultaneously drawn and textured after being drawn from the feed bobbin. After texturing, a post-processing such as shrinking is performed, so that the finished textured and processed yarn is finally wound on one bobbin. A plurality of delivery units are provided to guide and stretch the yarn during processing. Thus, a known false twist fiber machine has a first delivery unit, which is combined with a second delivery unit afterwards in one combined textured and stretching zone. Form. A third delivery unit is disposed behind the second delivery unit, and a post-processing zone is defined by the third delivery unit. A winding device is arranged after the third delivery unit, and the winding device winds the yarn around one bobbin.

  There are basically two different types of delivery units used to guide and draw the yarn. The delivery unit of the first type is formed by a so-called winding delivery unit. The winding delivery unit is based on the fact that a yarn tension is generated by winding the yarn around the winding delivery unit a plurality of times. For this purpose, a godet and a dancer roller arranged at a short interval with respect to this godet are preferably used, and a thread is wound around the outer peripheral surface of this dancer roller and guided by a plurality of times.

  The second type of delivery unit is a so-called nipping delivery unit (grip supply unit). The nipping delivery unit is guided in a nip (roller gap) between a driven roller to be driven and a nipping element (for example a pressure belt or a pressure roller). In this case, the yarn is guided by being partially wound around the outer peripheral surface of the drive shaft. The nipping element is in a winding region on the outer peripheral surface of the drive shaft, and in this case, the nipping element and the drive shaft move in the same direction.

  In known false twist fiber machines, it is common to use one type of delivery unit for yarn guiding and drawing. However, either type of delivery unit has advantages and disadvantages in guiding the yarn.

International Publication No. 2007/036242 Pamphlet

  Accordingly, an object of the present invention is to improve a false twist fiber machine of the type described at the beginning to provide a yarn that can be textured and processed with high quality.

  Another object of the present invention is to enable continuous processing of yarns without interruption as much as possible even during manual bobbin replacement.

  According to the false twisted fiber machine of the present invention of the type described at the beginning which solves this problem, the first delivery unit is configured as the first winding delivery unit, and the second delivery unit Is configured as a second winding delivery unit, and the third delivery unit is configured as a nipping delivery unit.

  Advantageous embodiments of the invention are described in the features and combinations described in the dependent claims.

  The invention is characterized in that the texturing and post-treatment of the yarn can occur uniformly in each filament of the yarn. No additional mechanical loading from the outside of the filament of the yarn by the nipping element of the nipping delivery unit is performed until after-treatment of the yarn. The yarn is carefully guided by a pure winding delivery unit in the textured and drawing zone as well as at the entrance of the aftertreatment zone. Only after the post-processing of the yarn is finished, the yarn has its final textured structure and the third delivery unit is configured as a nipping delivery unit to guide the yarn. The nipping delivery unit arranged in front of the winding device has the special advantage that the tension of the yarn is kept very constant in the aftertreatment zone. The bobbin change carried out in the winding device (at the time of this bobbin change, the yarn is sucked for a short time and guided to the lint container) is advantageously not affected in the aftertreatment zone. With the nipping delivery unit, the yarn supply to the winding device is kept substantially constant. Thereby, the false twist fiber machine according to the present invention is particularly suitable for carrying out partial automatic operation in which bobbin replacement is performed manually. Basically, however, the invention is not limited to partially automatic false twist fiber machines. In contrast, automatic bobbin exchange can also be carried out in an advantageous manner by means of a nipping delivery unit arranged in front of the winding device.

  In order to adjust the different yarn tension states in the texturing and drawing zone and in the aftertreatment zone, according to an advantageous embodiment, a first winding delivery unit, a second winding delivery unit and a nippin are provided. The Gudeliveri unit is driven by a separate electric motor. Thereby, the supply speeds in the plurality of delivery units can be adjusted and controlled independently of each other.

  In this case, the driving device for the nipping delivery unit has a driving shaft that extends over a plurality of driving stations, and the driving shaft is connected to the electric motor at one end. Configured. As a result, a central driving device of the nipping delivery unit is realized in order to simultaneously guide a plurality of yarns to correspondingly arranged processing stations.

  However, the drive shaft is divided into a plurality of partial axes in the machine. In this case, the partial shaft extends over a plurality of processing stations and can be driven independently of the adjacent partial shafts. May be. As a result, individual groups of processing stations can be driven collectively, so that the nipping delivery unit has a plurality of drive units that can be controlled separately within the machine.

  Basically, instead, the nipping delivery unit may be configured as a delivery unit that is driven individually in the processing station. For this purpose, for example, the nipping delivery unit is formed by a godet, and a pressure roller or a pressure belt is brought into contact with the outer peripheral surface of the godet for feeding the yarn.

  The nipping delivery unit preferably has a pressure roller as a nipping element, which is held on the outer peripheral surface of the drive shaft for nipping the yarn for each processing station and for each yarn. Has been. This allows the yarn to be moved and guided without any particular slip.

  In order to guide the yarn as easily as possible in the winding delivery unit, according to an advantageous embodiment of the invention, the first and second winding delivery units are individually and adjacent in the processing station. It is configured to be able to be driven independently regardless of the adjacent winding delivery unit of the processing station.

  For this purpose, the winding delivery unit is advantageously formed by one driven godet and a rotatably supported dancer roller, respectively, so that at the start of the process, the thread delivery or threading can be simplified. Can be implemented in the form.

  In principle, however, such a winding delivery unit may also be formed by a drive shaft extending in the machine across a plurality of processing stations. A plurality of godet peripheral walls arranged one above the other are fixed to the drive shaft.

  The operation of the false twist fiber machine is further achieved in accordance with an advantageous embodiment of the invention in that the wrapping delivery unit is arranged in the processing station on the machine stand parts facing each other and between these machine stand parts. A service passage is formed.

  In order to achieve a post-processing zone aligned as vertically as possible, particularly suitable for shrinking treatment, a second winding delivery unit and a nipping delivery unit are arranged one above the other on the machine stand part. In this case, the nipping delivery unit is arranged below the winding device in the processing station. Thereby, in addition to the delivery unit, the winding device can also be operated from the working path.

  In this case, advantageously, an auxiliary device for performing manual bobbin exchange is arranged corresponding to one group of the plurality of winding devices of the plurality of processing stations. During manual bobbin replacement, this auxiliary device is formed in a general manner by a compressed air connection and a suction device for feeding a manually guided yarn suction device. During automatic bobbin exchange, a thread guide device is additionally used in order to deliver the thread to the suction device in a general manner.

1 is a schematic cross-sectional view of a false twist fiber machine according to a first embodiment of the present invention. FIG. 2 is a schematic side view of a part of the embodiment shown in FIG. 1. FIG. 3 is a schematic cross-sectional view of a false twist fiber machine according to another embodiment of the present invention. FIG. 4 is a schematic side view of a part of the embodiment shown in FIG. 3.

  In the following, false twisted fiber machines according to some embodiments of the present invention will be described with reference to the drawings.

  1 and 2 show a first embodiment of a false twist fiber machine according to the present invention. FIG. 1 is a cross-sectional view of a false twisted fiber machine, and FIG. 2 is a partial view of a plurality of winding devices arranged one after the other on the machine. 1 and FIG. 2 are applicable to both FIG. 1 and FIG. 2 in the following description unless specifically indicated as being any one of the drawings.

  The cross-sectional view shown in FIG. 1 shows the yarn path at a processing station where the yarn is drawn from one feed bobbin, guided, textured (filament) processed, drawn and wound onto one bobbin. The process equipment required for this is arranged in a machine stand 7 consisting of a plurality of parts for the yarn path partially surrounding the working channel 27. The false twist fiber machine has a plurality of processing stations as viewed in the longitudinal direction (in FIG. 1, the drawing plane is a transverse transverse plane perpendicular to the longitudinal direction). In each one of the stations, one yarn is textured and drawn. Generally, 200 or more processing stations are arranged side by side.

  In this embodiment, since the processing stations have the same structure, one apparatus of the plurality of processing stations will be described below with reference to FIG.

  In order to pull out the yarn 11 from the feed bobbin 2, one feed station 1 is provided for each processing station. The feed station 1 is configured in a creel stand 6, and one group of a plurality of feed stations 1 is held on the creel stand 6. The first delivery unit 3 is arranged on a machine stand part 7.1 facing the creel stand 6. Following the first delivery unit 3, a heating device 4 and a cooling device 5 are arranged on the yarn path. The heating device 4 and the cooling device 5 are arranged in a central machine stand part 7.2 which rests on the working channel 27. A false twisting device 8 and a second delivery unit 9 follow the yarn path ahead. The false twisting device 8 and the second delivery unit 9 are arranged in a separate machine stand part 7.3, in this case between the machine stand parts 7.1 and 7, 3 the work channel 27 Is formed. The second delivery unit 9 is followed by a set heating device (Set-Heizeinrichtung) 13 and a third delivery unit 14. For this purpose, a third delivery unit 14 is arranged below the second delivery unit 9, thereby adjusting the post-processing zone vertically aligned between the two delivery units.

  In the processing station, a winding device 10.1 is arranged after the third delivery unit 14, and the yarn 11 is wound around the bobbin 12 in the winding device 10.1. For this purpose, the winding device 10.1 has a movable bobbin holder 25 and a drive roller 26. A traverse device (not shown in detail) is provided in front of the drive roller 26 in the yarn path. The traverse device guides the yarn back and forth within the traverse stroke before winding the yarn around the bobbin, thereby traversing the yarn. The bobbin is wound up by a winding device. In this case, the bobbin 12 contacts the driving roller 26 and is driven to wind the yarn 11 at a constant peripheral speed.

  Since the winding device requires a larger width in the processing station than the process device provided in front of the winding device, the winding devices of adjacent processing stations are arranged one above the other in a hierarchical manner. . In this embodiment, the winding devices 10.1, 10.2 and 10.3 are arranged one above the other in the machine stand 7, in this case before the winding devices 10.1 to 10.3. The provided process devices, for example, the false twisting device 8 or the cooling device 5 are held in parallel with each other.

  In order to be able to carry out high-quality texturing and drawing on multifilament yarns, the first delivery unit 3 is formed by a winding delivery unit 15.1 and the second delivery unit 9 is formed by the second winding delivery unit 15.2. In this embodiment, the winding delivery units 15.1 and 15.2 are identically constructed and have one godet 16.1 and 16.2 and dancer rollers 17.1 and 17.2, respectively. ing. Godets 16.1 and 16.2 are connected to separate godet motors 19.1 and 19.2, respectively. Thereby, the winding delivery units 15.1 and 15.2 can be driven individually in the processing station and independently of the adjacent winding delivery unit of the adjacent processing station. This makes it possible to carry out the operation in a simple manner, in particular at the start of the process or when the thread breaks. In this case, the godet motor 19.1 arranged corresponding to the first delivery unit 3 can be driven group by group via the group conversion device in an advantageous manner.

  In order to carry out the guide, the thread 11 is wound a plurality of times around the rotatable outer peripheral surfaces of the plurality of godets 16.1, 16.2 and the dancer rollers 17.1, 17.2. In order to be able to operate the two winding delivery units 15.1 and 15.2 from outside the working channel 27, in particular at the start of the process, the winding delivery units 15.1 and 15.2 , Arranged in machine stand parts 7.1 and 7.2 facing each other in the processing station. In this case, the false twisting device 8, the cooling device 5 and the heating device 4 are arranged in the textured and drawing zone before the second winding delivery unit 15.2, and the yarn guide 11 is essentially an additional yarn guide element. Arranged so that it can be guided without. As a result, the yarn can be wound and purely wound around the delivery units 15.1 and 15.2, and the yarn can be carefully guided and textured and stretched.

  In this case, the yarn 11 reaches the aftertreatment zone directly via the second winding delivery unit 15.2 in a state just melt melt spun. A set heating device 13 is disposed in the post-processing zone. In order to maintain a uniform relaxed state of the yarn in the set heating device 13, the yarn is fed between the winding delivery unit 15.2 and the third delivery unit 14 with the lowest possible thread tension. For this purpose, the third delivery unit 14 is configured as a nipping delivery unit (gripping and supplying unit) 20, and the yarn passes between the drive shaft 21 and the pressure roller 22 in this nipping delivery unit. Guided into the clamping gap. The pressure roller 22 is held on the outer peripheral surface of the drive roller 21 via a movable tension arm 23. The yarn 11 is guided by being partially wound around the outer peripheral surface of the drive shaft 21, and is continuously fed by the cooperation of the drive shaft 21 and the pressure roller 22.

  Thereby, the nipping delivery unit 20 arranged in front of the winding device keeps the yarn tension constant in the processing zone irrespective of the respective operating state of the processing station. Manual bobbin changes where the thread is cut by the operator and temporarily supplied to the suction device also do not affect the aftertreatment zone.

  As shown in FIG. 2, the drive shaft 21 of the nipping delivery unit 20 extends across a plurality of processing stations within the machine. There are 18 processing stations at the front, and these processing stations have six groups of winding devices arranged one above the other in a hierarchical manner. The last group of winding devices is indicated, for example, by the numbers 10.16, 10.17 and 10.18. The end of the drive shaft 21 is connected to an electric motor 24, whereby a plurality of yarns are simultaneously guided by the drive shaft 21 at a plurality of processing stations. In each processing station, the nipping delivery unit 20 has one pressure roller 22, and this pressure roller 22 selectively contacts the outer peripheral surface of the drive shaft 21 via the tension arm 23, respectively. Or it is held without contact. This allows the yarn to be delivered individually into each processing station after the yarn breaks.

  The drive shaft 21 is rotatably supported by a plurality of bearing portions in the machine stand 7.3. FIG. 2 shows an example of bearing points 34.1 and 34.2.

  As shown in FIGS. 1 and 2, each group of take-up devices 10.1 to 10.3 is each for performing manual bobbin replacement by an operator at one of the take-up devices. One auxiliary device 28 is arranged correspondingly. As the auxiliary device 28, for example, a suction connection portion 29 and a compressed air connection portion 30 are illustrated. It is thus possible to connect a manually guided suction device, which guides the yarn during the bobbin exchange. The compressed air is supplied from the suction device via the compressed air connection 30. The suction connection portion 29 is formed in the suction pipe 36, and this suction pipe 36 extends in the machine longitudinal direction and is connected to the lint container. The compressed air connection portion 30 is disposed in the compressed air pipe 35, and the compressed air pipe 35 extends along the machine longitudinal direction and is connected to the compressed air source.

  3 and 4 show another embodiment of a false twist fiber machine. FIG. 3 shows a cross-sectional view of this alternative embodiment, and FIG. 4 shows a partial view in the machine longitudinal direction. Unless otherwise indicated, the following description applies to both FIG. 3 and FIG.

  Since this embodiment is almost the same as the embodiment shown in FIGS. 1 and 2, only the differences will be described here. This embodiment has a number of processing stations similar to the embodiment of FIGS. 1 and 2 for drawing, texturing and post-processing each supplied yarn 11. Unlike the above embodiment, multi-stage post-processing is performed in a post-processing zone between the second delivery unit 9 and the third delivery unit 14. For this purpose, a vortex generator 33 is arranged behind the second delivery unit 9, and the vortex generated by the compressed air is carried out on the textured yarn in this vortex generator 33. . Such vortexing of the textured yarn unwinds the residual twist of the yarn that still exists on the exit side of the false twisting device 8.

  A fourth delivery unit 32 is arranged behind the vortex device 3 in the yarn path, so that the yarn 11 is vortexed especially between the third delivery unit 14 and the fourth delivery unit 32. The yarn tension to be applied can be adjusted. Subsequently, in order to perform the shrinking process, the set heating device 13 and the third delivery unit 14 are arranged after the fourth delivery unit 32 in the yarn path.

  The delivery units 3, 9 and 32 provided in front of the set heating device 13 are formed by winding delivery units 15.1, 15.2 and 15.3, respectively. Since each winding delivery unit 15.1 to 15.3 is configured in the same manner, the configuration of the above embodiment is referred to in order to avoid repeated description. Therefore, the winding delivery unit 15.3 is formed by the godet 16.3, the dancer roller 17.3, and the godet motor 19.3.

  The delivery unit 14 disposed in front of the winding device 10.1 is similarly configured as a nipping delivery unit 20, in which the drive shaft 21 is connected to the pressure roller 22 in the processing station. Collaborate. Unlike the embodiment shown in FIG. 2, in the embodiment shown in FIG. 4, the drive shaft 21 is divided into a plurality of partial shafts 31.1 and 31.2, one for each of these partial shafts. Electric motors 24.1 and 24.2 are arranged correspondingly. This allows the nipping delivery unit 20 to be individually driven for multiple groups of processing stations.

  The embodiment of the false twisted fiber machine of the present invention shown in FIGS. 1 to 4 is an example of the structure and arrangement of the false twisted fiber machine device and an example of a process device for yarn processing, processing and winding. is there. For example, the false twisting device is of an advantageous type and is formed by a friction disk device, in which case the device is arranged corresponding to each processing location. The cooling device 5 is formed by a cooling rail or a cooling pipe, and at least one yarn or a plurality of yarns can be simultaneously cooled by the cooling rail or the cooling pipe. Similarly, the heating device 4 can be formed by a so-called high temperature heater. In this high temperature heater, the yarn is guided through a heated surface, and this heated surface has a surface temperature that exceeds the melting temperature of the yarn. In this case, regardless of the type of heating means, the temperature of one or more yarns can be adjusted simultaneously in the heating device.

  It is also common to wet with a preparation fluid before winding the yarn. Such a type of adjusting device is advantageously arranged between the nipping delivery unit and the winding device. The device in the aftertreatment zone shown in the illustrated embodiment is also given as an example. Therefore, since the yarn can be swirled in the post-processing zone, only one swirling device may be arranged between the second delivery unit and the third delivery unit.

  What is important for the false twist fiber machine according to the present invention is that the delivery unit is divided into a winding delivery unit and a nipping delivery unit. In this case, only the delivery unit arranged directly in front of the winding device is configured as a nipping delivery unit, and all other delivery units provided for texturing and processing the yarn, It is formed by a winding delivery unit that handles yarn carefully.

  DESCRIPTION OF SYMBOLS 1 Feed station, 2 Feed bobbin, 3 1st delivery unit, 4 Heating device, 5 Cooling device, 6 Creel stand, 7 Machine stand, 7.1, 7.2, 7.3 Machine stand part, 8 False twist Device, 9 second delivery unit, 10.1, 10.2, 10.3 winding device, 11 yarn, 12 bobbin, 13 set heating device, 14 third delivery unit, 15.1, 15. 2,15.3 winding delivery unit, 16.1, 16.2, 16.3 godet, 17.1, 17.2, 17.3 dancer roller, 19.1, 19.2, 19.3 godet motor , 20 Nipping delivery unit (grip supply unit), 21 Drive shaft, 22 Pressure roller, 23 Tension arm, 24, 2 1, 24.2, 24.3 Electric motor, 25 Bobbin holder, 26 Drive roller, 27 Working passage, 28 Auxiliary device, 29 Suction connection, 30 Compressed air connection, 31.1, 31.2 Partial shaft, 32 Fourth Delivery Unit, 33 Eddy Device, 34.1, 34.2 Bearing Location, 35 Compressed Air Line, 36 Suction Pipe

Claims (10)

A false twist fiber machine for texturing a plurality of multifilament yarns, wherein the plurality of yarns are used to draw out, stretch, texture, and wind up at least one of the plurality of yarns (11). Delivery unit (3, 9, 14), one heating device (4), one cooling device (5), one false twisting device (8) and one winding device (10.1). In this case, a combined textured and stretched zone is formed between the first delivery unit (3) and the second delivery unit (9). A post-processing zone is formed between the second delivery unit (9) and the third delivery unit (14) provided in front of the one winding unit (10.1). In things,
The first delivery unit (3) is configured as a first winding delivery unit (15.1), and the second delivery unit (9) is configured as a second winding delivery unit (15). 2), and the third delivery unit (14) is configured as a nipping delivery unit (20). The first winding delivery unit (15.1), the second winding delivery unit (15.2), and the nipping delivery unit (20) are separated into separate electric motors (19.1, 19). 2, 24), the false twisted fiber machine according to claim 1. The nipping delivery unit (20) has a drive shaft (21) extending over a plurality of processing stations, and the drive shaft (21) is connected to the electric motor (24) at one end. The false-twisting fiber machine according to claim 2.   The drive shaft (21) is divided into a plurality of partial shafts (31.1, 31.2) in the machine, in which case the partial shaft (31.1, 31.2) is divided into a plurality of processing stations. 4. A false-twisting textile machine according to claim 3, which extends over and can be driven independently of the adjacent partial axes (31.1, 31.2).   The nipping delivery unit (20) has one pressure roller (22) that can be rotated for each processing station or for each yarn, and the pressure roller (22) is driven to tighten the yarn (11). The false twist fiber machine according to claim 3 or 4, which abuts on the outer peripheral surface of the shaft (21). The first winding delivery unit (15.1) and the second winding delivery unit (15.2) are arranged in the processing station individually and adjacent to each other in the adjacent processing station. The false-twisting fiber machine according to any one of claims 1 to 5, wherein the false-twisted fiber machine can be driven independently regardless of the speed.   The first and second winding delivery units (15.1, 15.2) each have one driven godet (16.1, 16.2) and a rotatably supported dancer roller (17 ., 17.2). The false twisted fiber machine according to claim 6.   The first and second winding delivery units (15.1, 15.2) are arranged in the processing station on the machine stand parts (7.1, 7.3) facing each other. The false-twisting textile machine according to any one of claims 1 to 7, wherein a working passage (27) is formed between the stand portions (7.1, 7.3).   The second winding delivery unit (15.2) and the nipping delivery unit (20) are arranged one above the other on the machine stand part (7.3), and the nipping delivery unit ( 9. A false-twisting textile machine according to claim 8, wherein 20) is arranged in the processing station below the winding device (10.1).   An auxiliary device (28) for performing manual bobbin replacement is arranged corresponding to one group consisting of a plurality of the winding devices (10.1, 10.2, 10.3) of a plurality of processing stations. The false twisted fiber machine according to any one of claims 1 to 9.

Images