EP1685052A1

EP1685052A1 - False twist texturing machine

Info

Publication number: EP1685052A1
Application number: EP04803134A
Authority: EP
Inventors: Michael Pyra; Thomas Wortmann
Original assignee: Saurer GmbH and Co KG
Current assignee: Oerlikon Textile GmbH and Co KG
Priority date: 2003-11-19
Filing date: 2004-11-12
Publication date: 2006-08-02
Also published as: CN1882487B; JP4980719B2; KR20060123745A; CN1882487A; JP2007511446A; WO2005049464A1

Abstract

A false twist texturing machine is disclosed, in which a number of processing stations, for false twist texturing of a number of synthetic fibres, are provided. Each processing station contains several processing units, fixed to a process frame, for withdrawing one of the threads from a feed bobbin, texturing, drawing and winding the thread to give a bobbin. A suction device is provided for drawing off the thread during a spool change in the processing station, which is connected to a thread collection device. According to the invention, the threads in the number of processing stations may be more securely drawn off, whereby the suction device is embodied by several separately-controllable field suction devices, each allocated a group of more than ten processing stations and each connected to a yarn waste container for the thread collection device.

Description

Wrong all texturing machine

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

Such a false twist texturing machine is known, for example, from US Pat. No. 3,381,462.

In the known false twist texturing machine, a large number of processing points are arranged side by side. Each processing station has a plurality of process units in order to pull a thread from a supply spool, to texturize it, to stretch it and to wind it into a spool. In this case, the threads are picked up by a suction device during a bobbin change in the processing points and guided to a thread collecting device.

With false twist texturing machines of this type, up to two hundred and sixteen processing points are formed side by side, so that a large number of threads have to be passed through the suction device in order to be picked up by the thread collecting device. In systems of this type, there is basically the problem that in the event of inadequate conveying capacity of the suction device, disturbances in the thread removal are unavoidable. In addition, because of the long distances between the processing points and the thread collecting device, deflections and constrictions in the suction device must be avoided if possible, since this would cause flow losses, which in turn favor the risk of blockages.

It is therefore an object of the invention to provide a false twist texturing machine of the type mentioned, in which the threads of the _^ Machining points can be safely removed during the bobbin change.

Another object of the invention is to provide a false twist texturing machine in which groups of processing stations can be used flexibly.

Another object of the invention is to provide a suction device in the generic false twist extruder machine, in which the energy sources available during operation can be used to remove the threads.

The solution is achieved for a false twist texturing machine of the type specified in the preamble of claim 1 in that the suction device is formed by a plurality of separately controllable field suction devices, which field suction devices are each assigned to a group of more than ten processing locations, and in that the thread collecting device per field suction device has one yarn waste container having.

The invention is characterized in that the yarn waste taking up from the processing points can be led to the collecting point by the shortest route. In this way, the thread removal can be safely removed by relatively low flow energies. Another advantage of the invention is the fact that the associated with the field suction devices

Processing points can process different thread materials independently of the neighboring processing points, because of the

Thread waste disposal devices associated waste bin a separation of

Thread waste occurs. However, here is a certain number of

Machining points assigned to a field suction device must be observed by at least ten. If there are fewer than ten processing points, the advantages mentioned are increased by an increase

Reduced operating effort of the yarn waste container. To this extent, a larger number of processing points can advantageously be provided by one v Operate the field suction device. For example, the two hundred and sixteen processing stations could serve a false twist texturing machine through eighteen, twelve or six field suction devices. In principle, different variants of the field suction devices can be used to remove the threads picked up in the processing points. In a first embodiment variant, each of the field suction devices has a field injector, which is connected to a collecting pipe with a suction connection and to the associated yarn waste container with a blowing connection.

In a further embodiment of the field suction devices, a vacuum source and a collecting tube are provided, which are connected to the associated yarn waste container via separate connections. As a result, the threads are drawn into the yarn waste container.

The connection of the processing points can advantageously be carried out by suction nozzles which open directly into the collecting pipe.

In a further particularly advantageous embodiment of the twist twisting machine, the field suction devices are formed by guide tubes with point injectors which are assigned to the processing points. The threads are drawn in at one end of the guide tube due to the injector effect of the position injector and blown out at the opposite end of the guide tube. For this purpose, the guide tubes are connected with their blown ends to the associated yarn waste container.

In principle, the blowing ends of the guide tubes can open separately in groups or together via a collecting tube in the assigned yarn waste container. v-The point injectors are preferably connected to a compressed air supply by a controllable switching valve, so that a conveying medium is introduced into the guide tube only in the case of thread transport.

In the cases in which the thread waste is blown into the yarn waste container by the field suction devices, the development of the invention is particularly advantageous in which the thread waste container is formed in each case by a thread waste bag which is detachably held in the machine frame.

It is particularly advantageous if the thread waste bags consist of a thread material processed in the group of processing stations, so that they can be recycled together with the thread remnants collected therein. Emptying and decanting the thread waste is therefore not necessary.

In order to be able to lead the thread waste out of the processing points with as little energy expenditure as possible, the yarn waste container is preferably arranged in the lower region of the machine frame.

However, there is also the possibility that the yarn waste containers are arranged together in a collecting space outside the machine, at the end of the machine or to the side of the machine. This simplifies operation for emptying or disposing of the pellet waste.

The flexibility with regard to processing different thread material can be significantly improved by the development of the invention, in which the process units forming a group of processing stations can be controlled independently of the process units of the adjacent group of processing stations.

The invention is described in more detail below with the aid of a few exemplary embodiments with reference to the accompanying drawings. They represent:

1 and 2 schematically several views of an embodiment of the false twist texturing machine according to the invention;

3 schematically shows a first embodiment variant of the field suction device;

Fig. 4 schematically shows a further embodiment of the field suction device and

5 schematically shows a further embodiment variant of the field suction device. 1 and FIG. 2 schematically show an embodiment of the false twist texturing machine according to the invention. 1 shows a top view of the false twist texturing machine and FIG. 2 shows a side view of the false twist texturing machine. Insofar as no express reference is made to one of the figures, the following description applies to both figures.

The false twist texta machine has a machine frame 4. The machine frame 4 is formed by a module frame 4.1, a process frame 4.2 and a winding frame 4.3, which are firmly connected to one another. A separate gate frame 7 is arranged at a distance from the module frame.

In the machine frame 4, a plurality of processing points 1.1, 1.2, 1.3 etc. are arranged in parallel alongside one another in the longitudinal direction. Usually, in a false twist texturing machine, over two hundred processing points are preferably provided, two hundred and eighteen processing points. In the exemplary embodiment in FIG. 1, only the first three processing points are identified by way of example with the reference numerals 1.1, 1.2 and 1.3. In each of the processing points 1.1, 1.2 and 1.3 there is at least one thread '3 edited. The large number of processing points are divided into several processing groups 2.1, 2.2 and 2.3 etc. In the exemplary embodiment shown in FIG. 1, twelve processing stations lying next to one another form a processing group ^" 2.1. In FIG. 1, the first two processing groups 2.1 and 2.2 as well as partially the third processing group 2.3 are shown by way of example. Each group of processing stations 2.1, 2.2, 2.3 etc. contain a number of process units which are held in the machine frame 4 for a job set-up and which pull the threads assigned to the group of processing stations in parallel from supply bobbins, texturize, stretch and wind them into bobbins.

In Fig. 1 only a part of the processing units provided in the processing stations are shown schematically with the reference numerals 10, 11, 12, 13, 16 and 18. The group of the take-off delivery units is identified by the reference numeral 10, a deduction delivery unit being assigned to each processing point in order to pull a thread 3 from a supply spool 8. The supply spool 8 is accommodated in the frame 7. For stretching and texturing, the thread 3 in the processing points, for example the processing point 1.1, is guided into a false twist zone which is formed by the primary heating device 11, the cooling device 12 and the false twist texturing unit 13. The thread 3 is then subjected to a heat treatment in each of the processing points, which is carried out by the secondary heating device 16. At the end of the processing, the thread 3 is wound into a bobbin 21 of the winding device 18 held on a bobbin holder. The winding devices 18 occupy a width of three processing points, therefore three winding devices - each of which will be discussed later - are arranged one above the other in a column in the winding frame 4.3.

For further explanation, the process units of the processing point 1.1 are shown schematically in the side view in FIG. 2. The process units arranged in the machine frame 4 to form a job structure , are formed in processing group 2.1 by a take-off delivery unit 10, a primary heating device 11, a cooling device 12, a false twist texturing unit 13, a drawing delivery unit 14, a swirling unit 38, a set delivery unit 15, a secondary heating unit 16, a supply unit 17 and a take-up unit 18 , wherein the process units are arranged one behind the other to form a thread run. Here, an operating aisle 5 is formed between the module frame 4.1 and the process frame 4.2, from which the process units are operated when they are first put on.

The structure of the supplying plants 10, 14, 15 and 17 is identical in the job structure of processing group 2.1. Each of the delivery units is formed by a driven godet and an associated freely rotatable overflow roller. It is shown on the take-off delivery mechanism 10 that the drive is carried out by an individual drive 25, which is preferably formed by an electric motor. Likewise, the false twist texturing unit 13 is driven by an individually controllable false twist drive 26.

In the take-up frame 4.3, a total of three take-up devices 18 of adjacent processing points are arranged one above the other in tiers. The

Winding device 18 is schematically by a traversing 20, a

Driving roller 19 and a coil 21 are marked. The winding device 18 also holds a sleeve magazine 22 in order to be able to carry out an automatic bobbin change. The auxiliary devices required to replace the full bobbins are not shown here. The auxiliary devices could, for example, be designed as known from EP 0 916 612 AI.

In this respect, reference is made to the cited publication. The

Rewinders of the processing groups form one

Long side of the machine, along the length of which an exit 6 extends. The full coils can be transported out of the exit 6. • As can be seen from FIGS. 1 and 2, a plurality of field suction devices 27.1, 27.2, 27.3, etc. are provided for taking up the threads during the bobbin change in the processing points. Each group of processing points 2.1, 2.2, 2.3, etc. is assigned one of the field suction devices 27.1, 27.2 and 27.3. Each field suction device 27.1, 27.2 and 27.3 has a pipe system 39 and a power generator 40. The design of the field suction device is described in more detail below. A yarn waste container 28.1, 28.2 and 28.3 is assigned to each field suction device 27.1, 27.2 and 27.3. The thread waste from the processing points of the processing group 2.1 is thus picked up by the field suction device 27.1 and conveyed into the yarn waste container 28.1. Accordingly, the thread waste from the processing points of the processing group 2.2 is conducted to the game waste container 28.2 by the field suction device 27.2.

The yarn waste containers 28.1, 28.2 and 28.3 are preferably detachably arranged in the lower area of the machine frame 4, preferably in the lower area of the process frame 4.2. In this way, the game waste containers 28.1, .28.2, and 28.3 can be removed from the operating aisle 5 in order to dispose of the thread waste.

FIG. 3 schematically shows a first embodiment of the field suction device, as would be used, for example, in the embodiment of the false twist texturing machine according to FIG. 1.

The winding devices 18.1, 18.2 and 18.3 which are arranged one above the other in terms of levels are shown schematically here by the illustration of a spool. A suction inlet opening 33 of a pipe system 39 is assigned to each winding device 18.1, 18.2 and 18.3. The pipe system 39 is in this case formed from a plurality of guide pipes 32 which have a point injector 31 directly in the vicinity of the suction inlet opening 33. The point injectors 31 provided per winding point together form a power generator and are connected via a controllable switching valve 41 to an air source not shown here. The guide tubes 32 each have a blowing end 34. The * Blowing ends 34 of the guide tubes 32 open immediately before the opening of a garbage container 28. The garbage container 28 is designed as a thread waste bag 37. The thread waste bag 37 is held in a holder 42 in the lower area of the process frame 4.2, for example. The thread waste bag 32 is produced as a textile fabric, in particular from a woven fabric, trades, knitted fabric or a nonwoven fabric. The material for the thread waste bag is preferably formed from the thread material that is processed for the respective group of processing points. This allows the thread waste collected in the thread waste bag to be disposed of and recycled together with the thread waste bag.

The pipe system 39 shown in FIG. 4 could be designed in such a way that, for example, all the processing points adjacent on one floor each have a filling pipe, which with their blowing ends open into a collecting pipe. This would result in a total of three collecting pipes assigned to each floor, which then end with their blowing ends in the yarn waste container. However, it is also possible for all the guide tubes of the processing points of a processing group to run together into one collecting tube.

A further exemplary embodiment of a field suction device 27 is shown schematically in FIG. 4. Here, the power generator 40 is formed by a vacuum source 36. The vacuum source 36 is connected directly to a yarn waste container 28. For this purpose, the game waste container 28 is formed by a closed container. The pipe system 39 is connected to the game waste container 28. The pipe system 39 is in this case formed by a collecting pipe 29 and a plurality of suction ports 30, each of which has a suction inlet opening 33 assigned to the winding devices 18.1 to 18.3. In this case, the free ends of the suction ports 30 can be assigned closure means which only open the suction inlet opening 33 when required.

FIG. 5 shows a further embodiment variant of the field suction device, as can be used, for example, in the false twist texturing machine according to FIG. 1 _' Would be. Here, the field suction device as a power generator 40 has a field injector 35 which is connected to an air supply. The field injector 35 has a suction connection 43 and a blowing connection 44. The pipe system 39 is connected to the suction connection 43. The blow connection 44 opens directly into the garbage container 28. The pipe system 39 connected to the field injector 35 is identical to the previous exemplary embodiment according to FIG. 4. In this respect, reference is made to the above-mentioned description. In the exemplary embodiment of the false twist texturing machine shown in FIG. 1, a number of twelve processing points are assigned to a field suction device. The number of processing points is exemplary. In principle, more than twelve processing points can be supplied simultaneously by a field suction device. The division and assignment can be predetermined depending on the intended use of the false twist extrator machine. For example, a false twist texturing machine is known from WO 01/092615, in which the process units of the processing groups can be controlled and regulated independently of the process units of the adjacent processing groups. In this respect, the false twist texturing machine shown in FIG. 1 can be carried out in the same manner, so that a high degree of flexibility with regard to the processing of different thread materials can be carried out particularly advantageously. To form such a false twist texturing machine, reference is made to the cited script at this point.

When choosing the number of processing points that are supplied by a field suction device, it must be ensured that the least possible operating effort is retained. In this respect, there must be a minimum number of processing points of ten, which is supplied by a thread suction device. LIST OF REFERENCE NUMBERS

1, 1.1, 1.2, 1.3 ... processing point 2, 2.1, 2.2, 2.3 ... processing group 3 threads 4 machine frame 4.1 module frame 4.2 process frame 4.3 winding frame 5 operating aisle 6 gate 7 gate frame 8 supply spool

9.1, 9.2, 9.3 thread guide 10 take-off delivery unit 11 primary heating 12 cooling device 13 false twist texturing unit

14 stretch delivery plant

15 set delivery plant

16 secondary heating device

17 feeder

18 take-up device

19 drive roller

20 traversing

21 coil

22 sleeve magazine

25 single drive

26 false twist drive

27.L, 27.2, 27.3 field suction device

28.1,, 28.2,: 28.3 garbage can • 29 collecting tube 30 suction nozzle 31 point injector 32 guide tube 33 suction inlet opening 34 blowing end 35 field injector 36 vacuum source

37 thread waste bag

38 swirling device

39 pipe system

40 power generators

41 switching valve

42 bracket

43 suction connection

44 blow connection

Claims

claims

1. false twist texturing machine for false twist texturing of a multiplicity of synthetic threads (3) with a multiplicity of processing points (1.1, 1.2, 1.3), each of the processing points (1.1, 1.2, 1.3) having a plurality of process units (10, 14,) held on a machine frame (4) 15, 17, 18) for pulling off one of the threads (3) from a supply spool (8), for texturing, for stretching and for winding the thread (3) into a spool (21), a suction device (27.1, 27.2) for removing the threads (3) during a bobbin change in the processing points (1.1, 1.2, 1.3) and wherein the suction device (27.1, 27.2) is connected to a thread collecting device (28.1, 28.2), characterized in that the suction device is provided by several separately controllable field suction devices (27.1, 27.2, 27.3) are formed, which field suction devices (27.1, 27.2, 27.3) are each assigned to a group (2.1, 2.2, 2.3) of more than ten processing points, and that the thread collecting device has a garbage container (28.1, 28.2, 28.3) for each field suction device (27.1, 27.2, 27.3).

2. False Drum Texturing Machine according to Claim 1, characterized in that each of the field suction devices (27.1, 27.2) has a field injector (35) which has a suction connection (43) on a collecting pipe (29) and a blower connection (44) on the associated garbage container (28.1) is connected.

3. false twist texturing machine according to Anspmch 1, characterized in that each of the field suction devices (27.1, 27.2) have a vacuum source (36) and a collecting tube (29), which are separately connected to the associated game waste container (28.1).

- 4. False twist texturing machine according to claim 2 or 3, characterized in that the collecting tube (29) of the field suction device has a plurality of suction nozzles (30), each of which is assigned to one of the processing points (1.1, 1.2).

5. false twist texturing machine according to Anspmch 1, characterized in that each of the field suction devices (27.1, 27.2) have a plurality of guide tubes (32) with actuating injectors (31) assigned to the processing points, the guide tubes (31) with their blowing ends (34) with the associated yarn waste containers (28.1) are connected.

6. False throttle texturing machine according to claim 5, characterized in that the blower ends (34) of the guide tubes (32) of one of the field suction devices (27) open separately in a collecting tube (29) and that the collecting tube (29) via with the associated garbage container (28) connected is.

7. false twist texturing machine according to Anspmch 5 or 6, characterized in that the point injectors (31) are each connected to a compressed air supply by a controllable switching valve (41).

8. false twist texturing machine according to one of claims 5 to 7, characterized in that the game waste container (28.1, 28.2) is formed by a thread waste bag (37) which is detachably held in the machine frame (4).

9. false twist texturing machine according spoke 8, characterized in that the thread waste bags (38) consists of a thread material processed in the group of processing stations and can be recycled together with the thread remnants collected therein.

10. false twist texturing machine according to one of claims 1 or 9, characterized in that the game waste container (28.1, 28.2) is releasably held in a holder (42) in the lower region of the machine frame (4) below the process units.

11. False twist texturing machine according to one of the preceding claims, characterized in that the process units forming a group of processing stations can be controlled independently of the process units of the adjacent group of processing stations.