DE102008033843A1 - False twist - Google Patents

Abstract

There is described a false twist texturing machine for texturing a variety of multifilament yarns. The false twist texturing machine has a plurality of delivery mechanisms, a heater, a cooling device, a false twist device and a take-up device for pulling, drawing, texturing and winding at least one of the threads. In this case, a combined texturing / draw zone is formed between a first delivery mechanism and a second delivery mechanism and an aftertreatment zone is formed between the second delivery mechanism and a third delivery mechanism upstream of the takeup device. On the one hand to obtain a gentle guidance of the thread and on the other hand to guarantee uniform treatment conditions, according to the invention the first delivery mechanism and the second delivery mechanism are each designed as a wrap-around delivery mechanism and the third delivery mechanism as a clamping delivery mechanism.

Description

The The invention relates to a false twist texturing machine for texturing a plurality of multifilament threads according to the Preamble of claim 1.

A generic Falschdralltexturiermaschine is for example from the WO 2007 / 036242A1 known.

At the False-twist texturing of a thread becomes the thread first deducted from a submitted original bobbin. The thread of the supply spool was previously produced in a melt spinning process. To the melt-spun to prepare multifilament yarn for a textile application, The thread is after removal from the supply spool simultaneously stretched and textured. After texturing, a post-treatment takes place For example, in the form of a shrink treatment, so that a finished textured and treated yarn wound at the end into a bobbin becomes. To guide the thread during the treatment and to stretch, several delivery plants are provided. So points the known false twist texturing a first delivery plant which combined with a downstream second delivery plant Texturing / draw zone forms. The second delivery plant is a third Subordinated downstream supply plant, through which an aftertreatment zone is determined. The third delivery mechanism is followed by the take-up device, through which the thread is wound into a spool.

To the Guiding and stretching the thread are basically used two types of delivery plants. A first kind of delivery works is formed by the so-called Umschlingungslieferwerke. The Wrap-around delivery plants are based on the fact that the tensile forces on the thread by a multiple wrap of the thread on the Wrapping delivery plant are generated. For this purpose, a preferred Galette and a short-spaced hook roll used on their coats the thread with several wraps is guided.

A second type of delivery works are the so-called Klemmlieferwerke. The Klemmlieferwerke based on the fact that the thread in a nip between a driven drive shaft and a clamping element, For example, a pressure belt or a pressure roller guided becomes. Here, the thread with a Teilumschlingung on the mantle of Drive shaft out. The clamping element lies in the wrap area on the circumference of the drive shaft, wherein the clamping element and the drive shaft to move in the same direction.

at the well-known false twist texturing machine it is common a kind of delivery mechanisms for guiding and stretching the To use threads. Now, however, it has been shown that each one Kind of delivery mechanisms advantages and disadvantages in the leadership the threads has.

It is therefore an object of the invention, a false twist texturing to develop the generic type in such a way that the threads are texturable with high quality and are treatable.

One Another object of the invention is to a possible continuous continuous treatment of the thread also during to ensure a manual bobbin change.

The Task is for the generic Falschdralltexturiermaschine solved according to the invention that the first delivery plant and the second delivery plant each as a wrapping delivery plant are formed and that the third delivery mechanism as a Klemmlieferwerk is trained.

advantageous Further developments of the invention are characterized by the features and feature combinations the respective subclaims defined.

The Invention is characterized in that the texturing and the After-treatment of the thread on each of the filaments of the thread evenly can be generated. An external mechanical additional Stress of the filaments of the thread by a clamping element of a Klemmlieferwerkes does not find until after treatment of the thread instead of. The thread is used in the texturing and drawing zone as well as in the inlet of the aftertreatment zone gently by pure Umschlingungslieferwerke guided. Only after the aftertreatment of the thread has been completed and the thread is its final textured structure has, is the third delivery mechanism for guiding the thread designed as Klemmlieferwerk. The upstream of the take-up Klemmlieferwerk has the particular advantage that the thread tension be kept substantially constant in the aftertreatment zone can. The performed in the winding devices Bobbin change, in which the thread briefly to a suction led a waste container, lead advantageous for no Verschlappung within the aftertreatment zone. By the Klemmlieferwerk remains the supply of thread to Winding device substantially constant. The inventive False twist texturing machine is thus particularly suitable to a semi-automatic Run with manual bobbin changing. in principle however, the arrangement is not limited to semi-automatic false twist texturing machines limited. On the contrary, can also be automatic Bobbin exchange advantageous with a winding device upstream clamping delivery To run.

Around different thread tension states in the texturing / draw zone and the aftertreatment zone, is according to an advantageous embodiment, the first Wrapping delivery plant, the second wrapping delivery plant and the Klemmlieferwerk powered by separate electric motors. In order to can the delivery speeds at the delivery plants be set and controlled independently of each other.

Of the Drive of the terminal supply plant is thereby preferably designed such in that the clamping delivery mechanism extends over a plurality of processing points Drive shaft which is connected at one end to the electric motor is. This allows a central drive of the clamping supply plant realize at the same time a variety of threads in to guide the respective associated processing points.

It However, there is also the possibility that the drive shaft within the machine is divided into several sub-waves, wherein the partial waves extend over several processing points and are driven independently of adjacent partial waves. In order to Individual groups of processing stations can be driven summarize so that the Klemmlieferwerk within the machine several having separately controllable drives.

in principle should be mentioned at this point that the Klemmlieferwerk also advantageous as a single within the processing station driven delivery mechanism could be formed. For this For example, the clamping delivery unit can be replaced by a Galette form, at the periphery of a pressure roller or a pressure belt for conveying the thread.

When Clamping element, the clamping delivery plant preferably has a rotatable pressure roller on, per workstation and per thread on the perimeter of Drive shaft is held to clamp the thread. Leave it particularly slip-free transmissions and guides of the thread.

Around a user-friendly management of the To ensure suture at the wrapping supplies, is in accordance with an advantageous embodiment of Invention the first wrapping delivery plant and the second wrapping delivery plant within a processing station individually and independently from adjacent Umschlingungslieferwerken adjacent processing stations designed drivable.

For this the wrapping delivery plants are preferred by one each driven godet and a rotatably mounted Beilaufrolle formed, so that at the beginning of the process of applying the thread in a simple manner and manner is executable.

in principle However, it should also be mentioned here that such Umschlingungslieferwerke also by one in the machine over several processing points extending drive shaft can be formed, where several spaced-apart godet coats are attached.

The Operation of the false twist texturing machine can be continued still improve that, according to a preferred Continuing the wrapping delivery plants within the processing station arranged on opposite machine frame parts are which machine frame parts between them an operating gear form. Thus, the Umschlingungslieferwerke can be advantageous operated by an operator.

to Realization of an as vertical as possible aftertreatment zone, which is particularly suitable for shrinking treatment, are the second Wrapping delivery plant and the Klemmlieferwerk on the machine frame arranged one below the other, wherein the clamping delivery within the processing point is arranged below the winding device. That exists the possibility of not only the delivery plants but also the take-up device to operate out of the operating gear.

in this connection is advantageous to a group of take-up devices more Processing points an auxiliary device for implementation associated with bobbin changes. With manual bobbin change these auxiliary equipment usually by a suction device and a compressed air connection for supplying a manually guided Thread suction device formed. For automatic bobbin changing usually additional thread guide devices used to transfer the thread into the suction device.

The Invention will be described below with reference to some embodiments the false twist texturing machine according to the invention explained in more detail with reference to the accompanying figures.

It represent:

1 1 is a schematic cross-sectional view of a first embodiment of the false twist texturing machine according to the invention;

2 schematically a partial view of the embodiment of 2 .

3 1 is a schematic cross-sectional view of another embodiment of the false twist texturing machine according to the invention;

4 schematically a partial view of the embodiment of 3 ,

In the 1 and 2 a first embodiment of the false twist texturing machine according to the invention is shown. The 1 shows a cross-sectional view of the false twist texturing and 2 a partial view of the juxtaposed in the machine winding devices. Unless express reference is made to any of the figures, the following description applies to both figures.

In the 1 illustrated cross-sectional view represents the yarn path in a processing point, in which the thread drawn from a supply spool, guided, textured, stretched and wound into a coil. The process units required for this purpose are in a multi-part machine frame 7 to an operating gear 27 partially enclosing threadline arranged. The false twist texturing machine has longitudinally - in the 1 is the plane of the drawing equal to the transverse plane - a variety of processing points in order to texturize and stretch a thread in each processing point. Typically, more than 200 processing stations are arranged next to each other. Since the construction of the processing points is identical in this embodiment, the following are the facilities of one of the processing points with reference to the representation in FIG 1 described.

To remove a thread 11 from a feed bobbin 2 is a submission point per processing point 1 intended. The submission office 1 is in a gate rack 6 formed, to which a group of submission sites 1 are held. At a gate rack 6 facing machine frame part 7.1 is a first delivery plant 3 arranged. The first delivery plant 3 follows in the threadline a heater 4 and a cooling device 5 , The heater 4 and the cooling device 5 are on a middle machine frame part 7.2 arranged, that the operation gear 27 spans. In the further threadline follows a false twisting device 8th and a second delivery plant 9 , The false twist device 8th and the second delivery plant 9 are on another machine frame part 7.3 arranged, being between the machine frame parts 7.1 and 7.3 the operating gear 27 is formed. The second delivery plant 9 follows a set-heater 13 and a third delivery plant 14 , This is the third delivery plant 14 below the second delivery system 9 arranged so that sets a vertically aligned aftertreatment zone between the two delivery works.

The third delivery plant 14 is within the processing point a winding device 10.1 downstream, in which the thread 11 to a coil 12 is wound. The winding device 10.1 has a movable bobbin holder for this purpose 25 and a driven drive roller 26 on. The drive roller 26 is in the yarn path upstream of a traversing device not shown here, which reciprocates the thread before filing on the spool within a traverse stroke and forth, so that a cross-wound bobbin is wound in the winding device. The sink 12 lies with contact on the circumference of the drive roller 26 and is at constant peripheral speed for winding the thread 11 driven.

Since the take-up device require a greater width within the processing station than the processing units upstream of the take-up device, the take-up devices of adjacent processing stations are arranged one above the other in the form of a stack. In this embodiment, the winding devices 10.1 . 10.2 and 10.3 in the machine frame 7 arranged one above the other, wherein the winding devices 10.1 to 10.3 upstream Prozessaggre gate, such as the false twist device 8th or the cooling device 5 , are juxtaposed.

To be able to perform high-quality texturing and drawing on the multifilament thread, this is the first delivery system 3 through a wrapping delivery plant 15.1 and the second delivery plant 9 through a second wrapping delivery plant 15.2 educated. In this embodiment, the wrapping delivery plants 15.1 and 15.2 identical and each have a godet 16.1 and 16.2 and a minor role 17.1 and 17.2 on. The godets 16.1 and 16.2 are each with separate godet motors 19.1 and 19.2 connected. The wrapping delivery plants 15.1 and 15.2 are so within the processing station individually and independently of adjacent Umschlingungslieferwerken adjacent processing points drivable. In particular, this makes it possible to carry out the operation at the start of the process or during a yarn breakage in a simple manner. The first delivery plant 3 associated godet motors 19.1 can be advantageous group driven by a group converter.

To guide the thread 11 with several wraps on the rotatable coats of the galette 16.1 and 16.2 as well as the supplementary role 17.1 and 17.2 guided. In particular at the beginning of the process both wrapping delivery plants 15.1 and 15.2 from the operating gear 27 to be able to serve out, are the Umschlingungslieferwerke 15.1 and 15.2 within the processing station on the opposite machine frame parts 7.1 and 7.2 arranged. The second wrap-around delivery plant 15.2 are the false twist device 8th , the cooling device 5 and the heater 4 within the texturing / drawing zone upstream such that the thread 11 is essentially feasible without additional thread guide elements. In addition to the pure wraps of the thread at the Umschlingungslieferwerken 15.1 and 15.2 Thus, a thread-saving guide and treatment for texturing and stretching the thread can be achieved overall.

The thread arrives 11 in the fresh extruded state directly over the second Umschlingungslieferwerk 15.2 in the aftertreatment zone, in which the set-heater 13 is arranged. To ensure even relaxation of the thread within the set heater 13 to obtain the thread with the lowest possible thread tension between the Umschlingungslieferwerk 15.2 and the third delivery plant 14 guided. The third delivery plant 14 is this as a Klemmlieferwerk 20 formed, in which the thread in a nip between a drive shaft 21 and a pressure roller 22 to be led. The pressure roller 22 is via a movable clamping arm 23 on the circumference of the driven drive shaft 21 held. The string 11 comes with a Teilumschlingung on the circumference of the drive shaft 21 guided and by the interaction of the drive shaft 21 with the pressure roller 22 continuously promoted.

The reel-up arranged Klemmlieferwerk 20 is thus particularly suitable for keeping the yarn tension in the treatment zone constant independently of the respective operating state of the processing site. Even manual bobbin change, in which the thread is separated by an operator and temporarily fed to a suction device, remain without effect for the aftertreatment zone.

Like from the 2 shows, the drive shaft extends 21 of the terminal delivery system 20 over several processing points within the machine. A total of 18 processing points are shown, which contain the 6 groups of stacked superposed Aufwickeleinrichtungen. The last group of winders is exemplified by the reference numerals 10:16 . 10:17 and 10:18 characterized. One end of the drive shaft 21 is with an electric motor 24 coupled, so that a plurality of threads simultaneously in the processing points by the drive shaft 21 are guided. For each processing point, the Klemmlieferwerk points 20 a pressure roller 22 on, each over the tension arm 23 optionally with or without contact on the circumference of the drive shaft 21 can be held. Thus, the threads can be created individually in the individual processing points after a thread break. The drive shaft 21 is in the machine frame part 7.3 rotatably supported by a plurality of bearings. In 2 are the bearings 34.1 and 34.2 shown by way of example.

Like from the 1 and 2 further, is a group of rewinders 10.1 to 10.3 one auxiliary device each 28 assigned to perform by an operator a manual bobbin change in one of the take-up devices. As auxiliary equipment 28 Here are an example of a suction connection 29 and a compressed air connection 30 shown. Thus, a manually guided suction device can be connected, through which the thread is guided during the bobbin change. The compressed air supply of the suction device via the compressed air connection 30 , The thread waste can then be on the exhaust port 29 dissipate. The suction connection 29 is on a suction pipe 36 formed, which extends along a machine longitudinal side and is connected to a Garnabfallbehälter. The compressed air connection 30 is on a compressed air line 35 arranged, which extends along the machine longitudinal side and is connected to a compressed air source.

In the 3 and 4 another embodiment of a false twist texturing machine is shown. In 3 the embodiment is in a cross-sectional view and in 4 shown in a partial view of a machine longitudinal side. Unless an explicit reference is made to one of the figures, the following description applies to both figures.

The embodiment is essentially identical to the previous embodiment 1 and 2 , so that only the differences are explained here. The embodiment also has a plurality of processing points to each a submitted thread 11 to stretch, texturize and post-treat. Compared to the aforementioned embodiment takes place in the aftertreatment zone between the second delivery mechanism 9 and the third delivery plant 14 a multi-stage aftertreatment. This is the second delivery plant 9 a swirling device 33 arranged downstream, in which on the textured thread a turbulence generated by compressed air is performed. Such swirling of the textured thread allows one on the outlet side of the fascia device 8th possibly still existing residual twist is dissolved in the thread.

The swirling device 33 is in the threadline a fourth delivery plant 32 downstream, so that in particular the thread tension for swirling the thread 11 between the third delivery plant 14 and the fourth delivery plant 32 individually adjustable. The fourth delivery plant 32 follows in the threadline the set-up device 13 and the third delivery plant 14 in order to be able to connect a shrinking treatment.

The set heater 13 upstream supply plants 3 . 9 and 32 are each by Umschlingungslieferwerke 15.1 . 15.2 and 15.3 educated. Each of the wrapping delivery plants 15.1 to 15.3 is constructed identically, so that at this point to the above description can be made to avoid repetition. This is how the wrapping delivery works 15.3 through the godet 16.3 , the minor role 17.3 and the godet motor 19.3 educated.

The winding device 10.1 upstream supply plant 14 is also available as a clamping delivery system 20 formed, in which a drive shaft 21 within the processing station with a pressure roller 22 interacts. Contrary to the embodiment according to 2 is the drive shaft 21 in the embodiment according to 4 into several partial waves 31.1 and 31.2 divided, each with a separate electric motor 24.1 and 24.2 assigned. This allows the clamping delivery system 20 individually for several groups of processing stations.

The embodiments of the false twist texturing machine according to the invention according to the 1 to 4 are exemplary in the construction and arrangement of their facilities and processing units for treating, processing and winding the threads. Thus, for example, the false twisting devices are preferably formed by Friktionsscheibenaggregate, each processing point is assigned an aggregate. The cooling equipment 5 can be formed both by cooling bars or by cooling tubes, where at least one thread or several threads are cooled at the same time. Likewise, the heaters leave 4 form by so-called high-temperature heaters in which the threads are passed over heated surfaces having a surface temperature above the melting temperature of the thread. Alternatively, however, can be used by steam heated heaters. Regardless of the type of heating in the heaters one or more threads can be tempered at the same time.

moreover It is common to thread the thread before winding it with a preparation fluid to wet. Such preparation devices are advantageous between the terminal delivery and the take-up arranged. The illustrated in the embodiments Facilities in the aftertreatment zone are also exemplary. So it would also be possible, the thread in the aftertreatment zone only to swirl, so that between the second delivery mechanism and the third delivery only a swirling arranged would.

Essential for the false twist texturing machine according to the invention is the distribution of delivery plants in wrap-around delivery plants and Klemmlieferwerke, only that of the take-up directly upstream supply plant is designed as a terminal supply plant and all the rest for texturing and treatment of the thread used delivery mechanisms through the thread-friendly wrap-around delivery systems are formed.

1

template site

2

supply bobbin

3

first delivery mechanism

4

heater

5

cooling device

6

creel frame

7

machine frame

7.1 7.2, 7.3

Machine frame parts

8th

False twister

9

second delivery mechanism

10.1, 10.2, 10.

takeup

11

thread

12

Kitchen sink

13

Set heater

14

third delivery mechanism

15.1, 15.2, 15.3

Umschlingungslieferwerk

16.1, 16.2, 16.3

Galette

17.1, 17.2, 17.3

companion roll

19.1, 19.2, 19.3

godet

20

Terminal delivery works

21

drive shaft

22

pressure roller

23

clamping arm

24 24.1, 24.2

electric motor

25

spool holder

26

drive roll

27

service aisle

28

auxiliary device

29

suction

30

Compressed air connection

31.1, 31.2

partial wave

32

fourth delivery mechanism

33

swirling

34.1, 34.2

depository

35

Compressed air line

36

suction tube

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - WO 2007/036242 A1 [0002]

Claims (10)

A false twist texturing machine for texturing a plurality of multifilament yarns, having a plurality of delivery mechanisms ( 3 . 9 . 14 ), a heating device ( 4 ), a cooling device ( 5 ), a false twist device ( 8th ) and a winding device ( 10.1 ) for stripping, drawing, texturing and winding at least one of the threads ( 11 ), whereby between a first delivery mechanism ( 3 ) and a second delivery system ( 9 ) a combined texturing / draw zone is formed, and wherein between the second delivery mechanism ( 9 ) and one of the take-up device ( 10.1 ) upstream third delivery plant ( 14 ) a post-treatment zone is formed, characterized in that the first delivery system ( 3 ) and the second delivery plant ( 9 ) each as a wrap-around supplier ( 15.1 . 15.2 ) and that the third delivery plant ( 14 ) as a clamping delivery device ( 20 ) is trained. False twist texturing machine according to claim 1, characterized in that the first wrapping delivery unit ( 15.1 ), the second wrapping delivery plant ( 15.2 ) and the Klemmlieferwerk ( 20 ) by separate electric motors ( 19.1 . 19.2 . 24 ) are drivable. False twist texturing machine according to claim 2, characterized in that the clamping delivery unit ( 20 ) extending over a plurality of processing points drive shaft ( 21 ), which at one end with the electric motor ( 24 ) connected is. False twist texturing machine according to claim 3, characterized in that the drive shaft ( 21 ) within the machine into several partial waves ( 31.1 . 31.2 ), the partial waves ( 31.1 . 31.2 ) extend over several processing points and independent of adjacent partial waves ( 31.1 . 31.2 ) are drivable. False twist texturing machine according to claim 3 or 4, characterized in that the clamping delivery unit ( 10 ) per processing point or per thread a rotatable pressure roller ( 20 ), which at the periphery of the drive shaft ( 21 ) for clamping the thread ( 11 ) is present. False twist texturing machine according to one of claims 1 to 5, characterized in that the first wrapping delivery unit ( 15.1 ) and the second wrapping delivery plant ( 15.2 ) within a processing stations individually and independently of adjacent Umschlingungslieferwerken adjacent processing points are drivable. False twist texturing machine according to claim 6, characterized in that the wrapping delivery units ( 15.1 . 15.2 ) by a driven galette ( 16.1 . 16.2 ) and a rotatably mounted Beilaufrolle ( 17.1 . 17.2 ) are formed. False twist texturing machine according to one of claims 1 to 7, characterized in that the wrapping delivery units ( 15.1 . 15.2 ) within the processing station on opposite machine frame parts ( 7.1 . 7.3 ), which machine frame parts ( 7.1 . 7.3 ) between itself an operating passage ( 27 ) form. False twist texturing machine according to claim 8, characterized in that the second wrapping delivery unit ( 15.2 ) and the Klemmlieferwerk ( 20 ) on the machine frame part ( 7.3 ) is arranged with each other, wherein the Klemmlieferwerk ( 20 ) within the processing station below the take-up device ( 10.1 ) is arranged. False twist texturing machine according to one of claims 1 to 9, characterized in that a group of rewinding devices ( 10.1 - 10.3 ) several processing stations an auxiliary device ( 28 ) is assigned to carry out manual bobbin change.