EP1253222B1 - Apparatus for melt spinning and winding of at least one synthetic yarn - Google Patents

Abstract

A synthetic fiber (17) melt-spinning assembly and winding is assembly secured within a spinning machine frame (1) with a number of feed units (4, 5) and a winder unit (3). The spinning stage, feed and winder units are all installed within the machine frame to create esp. an N-profiled thread feed pattern. A module-holder (6) is located within the inclined thread section between the spinning stage and winding unit. The holder (6) can receive one or more stacked interchangeable thread process modules esp. powered galette modules and an overflow roller. One of the galettes is heated. The modules are symmetrical and may be presented at 0 degrees , 90 degrees , 180 degrees or 270 degrees to the holder (6). The feeder units (4, 5) each form part of modular feed modules (15.1, 15.2), one of which (15.1) is directly below the spinning station, the other (15.2) being directly overhead the winder unit (3).

Description

The invention relates to a device for melt spinning and winding at least one synthetic thread according to the preamble of claim 1

Such devices for melt-spinning and winding at least one synthetic thread containing a spinning device, multiple delivery mechanisms and a take-up device are well known. Here, in the spinning device, a polymer melt is conveyed by means of a melt generator to a spinneret and extruded under pressure into strand-like filaments. The filaments form a filament bundle, which is brought together after cooling in the spinning device to form a thread. By a delivery mechanism, the thread is withdrawn from the spinning device and guided to a winding device. In the winding device, the thread is wound into a bobbin. Process-related treatments, such as stretching, tempering, tangling and / or relaxation, take place between the spinning device and the winding device. For this purpose, the treatment facilities are firmly attached between the spinning device and the take-up on a machine frame.

In such devices, the problem arises that when changing a process of the yarn path must be changed so that existing treatment facilities are bypassed. This leads to a significant restriction of the flexibility of the devices and unfavorable thread deflections.

It is therefore an object of the invention to develop a device for melt spinning and winding at least one synthetic thread such that different processes for producing each of a particular thread with easy handling without significant change in the yarn path are executable.

The object is achieved by a device having the features of claim 1.

Advantageous developments of the invention are defined in the subclaims.

In the apparatus according to the invention, the spinning device, the delivery mechanisms and the winding device are arranged in the machine frame to form an N-shaped yarn path. In this case, a module receiving device is formed in the machine frame in the region of the oblique yarn path between the spinning device and the winding device. Possible treatments of the thread can thus be carried out in the region of the oblique threadline. The regions of vertical arrangement are determined to one side by the spinner and to the other side by the take-up device. In the transition region from the spinning device to the take-up device, a treatment of the thread coordinated with the respective process can thus be advantageously integrated and executed.

In an advantageous embodiment of the invention, at least one exchangeable treatment module is held in the module receiving device, so that the thread between the spinning device and the winding device in the desired manner can be treated.

However, it is also possible that in the module receiving device between the spinning device and the winding device a plurality of treatment modules are preferably arranged one above the other. In this case, during the transition of the thread from the spinning device to the take-up device, each of the treatment modules is passed through in succession, so that the thread can be treated in several stages.

The treatment modules can be designed as a godet unit with at least one driven galette and an overflow roller. This results in addition to the spinning device and the take-up each associated delivery works a simple way to stretch the thread.

For the production of FDY yarns or highly drawn yarns, the treatment modules are preferably designed as a galette unit with two driven godets. Depending on the number of treatment modules, several stages of stretching can thus be carried out in succession.

For thermal treatment of the thread, at least one of the godets is designed to be heatable.

In order to design a flexible arrangement and a simple yarn path, the treatment module is constructed symmetrically according to a particularly advantageous development and can be positioned either in an angular position of 0 °, 90 °, 180 ° or 270 ° within the module receiving device.

The flexibility of the device according to the invention is further increased by the development of the invention according to claim 8, by the delivery plants are each formed into a replaceable conveyor module. For this purpose, one of the conveyor modules is introduced interchangeable directly below the spinning device in the machine frame. The second conveyor module is placed interchangeably in the straight thread running section above the take-up device.

The delivery mechanisms of the modules can be formed by one or more driven godets.

In order to change the free thread length between the spinning device and the take-up device, it is also possible to make the module receiving device variable in width.

The device according to the invention thus has the advantage that POY yarns, FDY yarns or HT yarns can be produced depending on the placement of the treatment modules. In principle, all customary polymers are suitable, in particular PET, PP and PA. The device according to the invention is therefore characterized in particular by its extremely high flexibility, which is able to image any conventional process. Due to the modular system and the corresponding design, the individual treatment modules in number and location can be adapted without disadvantage in the yarn path and to the desired process.

Hereinafter, an embodiment of the device according to the invention is described in detail with reference to the accompanying drawings.

Fig.

1 schematisch eine Ansicht eines ersten Ausführungsbeispiels der erfindungsgemäßen Vorrichtung in einer Grundausstattung;

Fig. 2

schematisch ein weiteres Ausführungsbeispiel der erfindungsgemäßen Vorrichtung mit einem Behandlungsmodul;

Fig. 3

ein weiteres Ausführungsbeispiel der erfindungsgemäßen Vorrichtung mit mehreren Behandlungsmodulen;

Fig. 4

weitere Ausführungsbeispiele der erfindungsgemäßen Vorrichtung mit jeweils einer Grundausstattung.

They show:

FIG.

1 shows schematically a view of a first embodiment of the device according to the invention in a basic configuration;

Fig. 2

schematically a further embodiment of the device according to the invention with a treatment module;

Fig. 3

a further embodiment of the device according to the invention with a plurality of treatment modules;

Fig. 4

Further embodiments of the device according to the invention, each with a basic equipment.

In Fig. 1 a first embodiment of the device according to the invention is shown schematically in a view. In a machine frame 1, a spinning device 2 and a delivery mechanism 4 are arranged one below the other and form a substantially vertically aligned thread running section. Laterally next to the spinning device 2 and the delivery mechanism 4, a winding device 3 is arranged. The take-up device 3 is a second delivery mechanism 5 on the machine frame upstream in the yarn path of the take-up device 3. The delivery mechanism 5 and the winding device 3 form between them a second vertically aligned thread running section. Between the spinning device 1 and the winding device 3, a module receiving device 6 is formed in the machine frame. The module receiving device 6 is located in a region in which the thread is guided in an oblique run from the delivery mechanism 4 to the delivery mechanism 5. The yarn 17 is thus guided after the melt spinning in an N-shaped yarn path to the winding device 3 and wound there to form a coil 19.

In Fig. 1 the spinning device 2 is only partially shown. The melt producer, preferably an extruder, for melting a polymer is not described in more detail here for the sake of clarity. From the spinning device 2, the melt supply 7, a spinning head 8 and a arranged below the spinning head 8 spinneret 9 are shown. The spinneret 9 has a plurality of nozzle bores through which the polymer melt is extruded into a filament bundle 24. The spinning device 2 is associated with a cooling device 10 which serves to cool the filament bundle 24 below the spinneret 9. By a preparation device 11, the filament bundle 24 is brought together to form a thread 17. Between the yarn guide 12 and the collecting yarn guide 14 a Tangelung 13 is arranged in the machine frame 1.

Below the spinning device 2, the delivery mechanism 4 is placed, which is interchangeably introduced as a conveyor module 15.1 in the machine frame 1. The delivery mechanism 4 of the conveyor module 15.1 is designed as a godet unit 16, with a driven godet and a non-driven overflow roller.

Diagonally to the conveyor module 15. 1, a second conveyor module 15. 2 is arranged in the machine frame 1 with the delivery mechanism 5. The delivery mechanism 5 is likewise formed by a godet unit 16, which contains a driven godet and a non-driven overflow roller. Below the conveyor module 15.2 is the Winding device 3 placed in the thread running direction a head thread guide 18 includes a traversing device 21 and a spindle carrier 25 with two projecting winding spindles 20. On the winding spindles 20, a coil 19 is alternately wound.

At the in Fig. 1 illustrated embodiment, no treatment module is introduced in the module receiving device 6. Thus, the thread is withdrawn by the delivery mechanism 4 from the spinning device and conveyed by the delivery mechanism 5 to the take-up device 3. The delivery mechanisms 4 and 5 are preferably driven with a speed difference, so that a slight stretching of the thread takes place. This embodiment is thus implemented in a basic configuration and suitable for example for the production of FDY yarns.

In Fig. 2 is a further embodiment of the device according to the invention shown schematically in a view. The embodiment according to Fig. 2 is substantially identical to the previous embodiment in FIG Fig. 1 , so that only the differences are described in more detail here. According to the embodiment according to Fig. 1 is in the embodiment of the device according to the invention in Fig. 2 in the module receiving device 6, a treatment module 22 is introduced. The treatment module 22 carries a godet unit 23, which is formed by two driven godets. In this case, one of the godets is preferably designed to be heated. The godet unit 23 and the delivery mechanism 4 and the delivery mechanism 5 are driven at different peripheral speeds, so that a higher draw of the thread 17 takes place. Here, the delivery mechanism 5 of the conveyor module 15.2 is formed by two driven godets. The treatment module 22 could, for example, be designed as an insert, which is held in lateral rails of the module receiving device 6. Here, the depth of the treatment module 22 can be set arbitrarily, so that in particular when using a plurality of superimposed treatment modules with godet units, a transition from a godet unit to the next godet unit without deflection is possible.

This is in Fig. 3 a further embodiment shown, which contains a plurality of treatment modules 22.1, 22.2 and 22.3 one above the other in the module receiving device 6. The treatment modules 22.1, 22.2 and 22.3 are constructed identically, each of the treatment modules 22.1, 22.2 and 22.3 each containing a pair of godets. The godet units of the treatment modules 22.1, 22.2 and 22.3 could also be arranged rotated by 90 ° in the position. For this purpose, the treatment modules are constructed symmetrically and can be mounted in an angular position of 0 °, 90 °, 180 ° or 270 ° in the module receiving device 6. This in Fig. 3 embodiment shown is particularly suitable to produce highly drawn threads of polypropylene. The delivery mechanism 5 of the conveyor module 15.2 here consists of a heated galette and a non-heated galette, both of which are driven. Thus, a relaxation for shrinking treatment of the thread 17 before winding can be performed.

In Fig. 4 is the embodiment of the device according to the invention Fig. 1 presented in different basic equipment with different conveyor modules.

Fig. 4.1 shows the device with conveyor modules, each having a single loop galette. The godets of the conveyor modules 15.1 and 15.2 are not heated and are preferably driven at a differential speed. The device is particularly suitable for the production of POY yarns.

At the in Fig. 4.2 shown arrangement of the device according to the invention, the conveyor modules 15.1 and 15.2 are each formed by godet units containing two driven godets. The spinner 1 associated conveyor module 15.1 contains a heated and a cold godet. In contrast, the delivery module 15.2 is equipped with two cold godets. The galette units are driven to draw the thread at a differential speed.

In the embodiments of Fig. 1 to 4 the Tangleeinrichtung 13 and the collection thread guide 14 are also designed as a treatment module and introduced as a slot in the machine frame 1. Thus, any treatment device customary for processes can be modularly constructed and integrated into the machine frame. The arrangement of in Fig. 1 to 4 shown device parts is thus exemplary and shows only a small section of the diverse arrangement possibility for melt spinning, treating and winding a thread. Essential for the device according to the invention is that each treatment module can be integrated as a single module in a simple manner in an existing base frame. The special design of an N-shaped threadline allows the production of a thread with no or more treatment facilities in a row, without significant changes in the threadline would have to be performed. In this case, the parameters required for melt spinning, such as withdrawal speed or also the parameters determining the winding of the thread, such as take-up tension, are not affected. The fact that the delivery mechanisms are integrated into the basic equipment basically ensures melt-spinning of the thread and winding of the thread under specified conditions. The treatment modules are advantageously integrated into a region of the threadline in which there is no influence on the melt-spinning or the winding-up. So there is also the possibility that one of the treatment modules carries a crimping device. For this purpose, for example, a Stauchkammertexturierdüse be arranged in the yarn path. At a second treatment module, which is arranged downstream of the crimping device, a cooling device for cooling and dissolving a yarn plug could be kept.

In the embodiments in Fig. 1 to 4 the device according to the invention is described by means of a thread. Such devices are usually however, used to make several parallel threads. In this case, the threads are guided in parallel in the collection thread guide and guided in parallel run on the conveyor modules and the treatment modules for winding. The threads are thus treated in parallel and aufgewikkelt.

LIST OF REFERENCE NUMBERS

1

machine frame

2

spinner

3

takeup

4

delivery mechanism

5

delivery mechanism

6

Module holding device

7

melt feed

8th

spinning head

9

spinneret

10

cooling device

11

preparation device

12

thread guides

13

Tangleeinrichtung

14

Collecting yarn guides

15

delivery module

16

galette

17

thread

18

Yarn guide

19

Kitchen sink

20

winding spindle

21

Traversing device

22

treatment module

23

galette

24

filament bundles

25

spindle carrier

Claims (10)

1. Apparatus for melt spinning and winding of at least one synthetic yarn (17) with a machine frame (1) for receiving a spinning device (2), a plurality of delivery units (4, 5) and a winding device (3), characterized in that the spinning device (2), the delivery units (4, 5) and the winding device (3) are arranged into a N-shaped yam path and that a module receiving device (6) is formed between the spinning device (2) and the winding device (1) in the region of the inclined yam path.
2. Apparatus according to claim 1, characterized in that at least one exchangeable treatment module (22) is supported by the module receiving device 6, by which the yam (17) is treatable between the spinning device (2) and the winding device (3).
3. Apparatus according to claim 1 or 2, characterized in that a plurality of treatment modules (22.1, 22.2) are supported one above the other in the module receiving device 6, by which the thread (17) is treatable between the spinning device (2) and the winding device (3).
4. Apparatus according to claim 2 or 3, characterized in that the treatment module (22) is fashioned in a godet unit (16) with at least one driven godet and one guide roll.
5. Apparatus according to claim 2 or 3, characterized in that the treatment module (22) is fashioned in a godet unit (23) with two driven godets.
6. Apparatus according to claim 4 or 5, characterized in that at least one of the godets is realized so that it is heatable.
7. Apparatus according to one of the claims 2 to 6, characterized in that the treatment module (22) is of a symmetric structure and can be arranged optionally in an angular position of 0° , 90° , 180° or 270° within the module receiving device (6).
8. Apparatus according to anyone of the preceding claims, characterized in that the delivery units (4, 5) are configured respectively into an exchangeable conveying module (15.1, 15.2), in that one of the conveying modules (15.1) is arranged in the straight yam path below the spinning device (2) and the second conveying module (15.2) in the straight yam path above the spinning device (3).
9. Apparatus according to claim 8, characterized in that the delivery unit (4) of the conveying module (15.1) is formed by one or more driven godets.
10. Apparatus according to one of the claims 1 to 9, characterized in that the module receiving device (6) is realized in that its width can be modified.

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