CN1882487B - False twist texturing machine - Google Patents

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

False twist texturing machine

technical field

The invention relates to a false twist texturing machine for performing false twist texturing on multiple filaments.

Background technique

Such a false twist texturing machine is known, for example, from US 3,381,462.

In known false twist texturing machines a number of processing stations are arranged side by side. Each processing station has multiple work units for drawing, texturing, stretching and winding a feed of filaments from feed bobbins into bobbins. In this case, the filaments are picked up by a suction device in the processing position during a package change and conveyed to a yarn collector.

In false twist texturing machines of this type, up to 216 processing positions are arranged side by side, so that a plurality of filaments must be conveyed via a suction device in order to be picked up by the yarn collector. In a system of this type there is basically the problem that, if the delivery power of the suction device is insufficient, failures will inevitably occur during the removal of the filaments. Furthermore, due to the long path between the processing station and the yarn collector, deflections and constrictions in the suction device must be avoided as much as possible, since this would cause flow losses and thus increase the risk of clogging.

Contents of the invention

The object of the present invention is to provide a false twist texturing machine of the type mentioned at the outset, in which the yarns at the processing point can be transported away operationally reliably during a package change.

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

Another object of the present invention is to provide a suction device in a false twist texturing machine of the same type, in which the energy source present during operation can be used to transport the filaments.

The false twist texturing machine for carrying out false twist texturing to a plurality of synthetic filaments of the present invention has a plurality of processing positions, wherein each processing position has a plurality of operating units fixed on an equipment frame, so that the long One of the filaments is pulled from a feeding bobbin, crimped, stretched and the filament is wound into a bobbin, wherein a suction device is provided for leading out the long filaments in the processing position during the bobbin change. Silk. The above-mentioned object is achieved in that the suction device consists of a plurality of individually controllable sub-section suction devices, each of which is assigned to a processing group with more than 10 processing positions, and the yarn collectors for each Each of the partitioned suction devices has a waste yarn container.

The invention is characterized in that the waste yarn picked up from each processing position can be conveyed to a collection position by the shortest path. The filaments can thus be transported away with less flow energy in each case. Another advantage of the present invention is that each processing position assigned to the subregional suction device can process different filament materials independently of adjacent processing positions, because waste yarn can be recovered by means of the waste yarn container assigned to the subregional suction device. separate. In this case, however, the specific number of processing positions assigned to a partial suction device must be at least ten. However, when the number of processing stations is less than 10, this advantage is reduced due to the increased complexity in handling the waste yarn container. In this regard, it is advantageous that an even greater number of processing positions can be handled by one zonal suction device. Thus, for example, 216 processing positions of a false twist texturing machine are operated with 18, 12 or 7 section suction devices.

In order to discharge the filaments picked up at the processing point, different forms of partitioned suction can in principle be used. In a first embodiment, each sectoral suction device has a sectoral injector (field injector), which is connected via a suction connection to a collecting pipe and via a blowing connection to the equipped waste yarn container .

In a further embodiment of the partitioned suction device, a low-pressure source and a collecting line are provided, which are connected via separate connections to the associated waste yarn container. The filaments are thus sucked into the waste yarn container.

In a further particularly advantageous configuration of the false twist texturing machine, the zoned suction device is formed by ducts with regulating injectors assigned to the individual processing positions. Here, the filaments are sucked in at one end of the conduit due to the injector action of a station injector and blown out at the opposite end of the conduit. The conduit is connected with its blown end to the waste yarn container provided.

In principle, the blowing ends of the conduits lead individually in groups or together via a collecting pipe into the waste yarn container provided.

The regulating injector is preferably connected via a controllable switching valve to a compressed air supply, so that the conveying medium is only fed into the line when the filament is being conveyed.

The further development of the invention is particularly advantageous when the waste yarn is sucked into the waste yarn container by means of a partitioned suction device, in that the waste yarn container is formed by a waste yarn bag detachably fastened to the machine frame.

It is particularly advantageous here if the yarn waste bag is produced from a filament material processed in the processing station group, so that the yarn waste bag can be recycled together with the yarn waste collected therein. There is thus no need to empty and transfer the filaments.

The waste yarn container is preferably arranged in the bottom region of the machine frame, so that the waste yarn can be transported out of the processing position with the least amount of energy possible.

However, there is also the possibility that the waste yarn containers are arranged together outside the machine, at the end of the machine or in a collection chamber on the side of the machine. This simplifies the emptying or removal of waste yarn.

The flexibility in the processing of different filament materials can be greatly improved by a refinement of the invention in which the working groups forming a processing station group can be controlled independently of the working groups of an adjacent processing group.

Description of drawings

The invention is explained in more detail below with the aid of several exemplary embodiments shown in the drawings, wherein:

A plurality of schematic diagrams of an embodiment of the false twist texturing machine of the present invention of Fig. 1-2;

The schematic diagram of the first embodiment of Fig. 3 partition suction device;

The schematic diagram of another embodiment of Fig. 4 partition suction device;

Figure 5 is a schematic diagram of another embodiment of a partitioned suction device.

Detailed ways

An embodiment of the false twist texturing machine according to the invention is schematically shown in FIGS. 1 and 2 . Here, FIG. 1 shows a plan view of the false twist texturing machine, and FIG. 2 shows a side view of the false twist texturing machine. If no specific reference is made to which figure, the following description applies to both figures.

The false twist texturing machine has an equipment frame 4 . The equipment frame 4 here consists of a module frame 4.1, a work frame 4.2 and a winding frame 4.3, which are fixedly connected to each other. A separate creel 7 is provided at a distance from the module rack.

A plurality of processing stations 1 . 1 , 1 . 2 , 1 . 3 etc. are arranged parallel to one another in the longitudinal direction in the equipment rack 4 . Usually more than 200, preferably 218 processing positions are provided in a false twist texturing machine. In the exemplary embodiment of FIG. 1 , only the first three machining positions are indicated by way of example with the reference numerals 1.1, 1.2 and 1.3. In each processing station 1.1, 1.2 and 1.3 at least one thread 3 is processed in each case. The numerous processing positions are divided into processing groups 2.1, 2.2 and 2.3 etc. In the exemplary embodiment shown in FIG. 1 , each of 12 parallel processing stations forms a processing group 2 . 1 . The first two processing groups 2.1 and 2.2 and part of the third processing group 2.3 are shown as examples in FIG. 1 . Each processing position group 2.1, 2.2, 2.3, etc. comprises a plurality of operating units, which are fixed in the equipment frame 4 to form a position layout and pull the filaments fed to each processing position group from the feeding bobbin in parallel, Crimp, stretch and wind into rolls.

In FIG. 1 , only a part of the working groups designated by the reference numerals 10 , 11 , 12 , 13 , 16 , 18 arranged in the respective processing positions is schematically shown. Reference numeral 10 designates a set of pulling rollers, one of which is assigned to each processing station in order to pull the filament 3 from the feed bobbin 8 . Feeding bobbin 8 is contained in creel 7. For stretching and texturing, the filament 3 in a processing station such as processing station 1 . Subsequently, the filament 3 in each processing station undergoes a heat treatment, which is effected by means of the secondary heating device 16 . In the final stage of processing, the filament 3 is wound into a reel 21 of the winding device 18 which is fixed on the bobbin stand. The winding device 18 occupies the width of the three processing positions, so the three winding devices (described below) are stacked one above the other in a column shape and arranged in the winding frame 4.3.

For further clarification, the working unit of processing station 1.1 is shown in schematic side view in FIG. 2 . Each working unit set in the equipment frame 4 and forming a position layout passes through the pulling roller 10, the primary heating device 11, the cooling device 12, the false twisting unit 13, the stretching roller 14, the eddy current deformation unit in the processing group 2.1. The device 38, the setting roller 15, the secondary heating device 16, the delivery roller 17 and the winding device 18 are formed, wherein each operating unit is arranged successively to form a spinning process. In this case, an operating channel 5 is formed between the module frame 4.1 and the working frame 4.2, from which the individual working units can be actuated during the initial yarn separation.

In the positional arrangement of process group 2.1, delivery rollers 10, 14, 15 and 17 are identical in their construction. Each delivery roll is formed here by a driven godet roll and an associated freely rotatable take-up roll. As shown on the pulling roller 10 , the drive takes place via a separate drive 25 , which is preferably formed by an electric motor. Likewise, the false twist texturing unit 13 is driven by a separately controllable false twist drive 26 .

In the winding frame 4.3, a total of three winding devices 18 of the respective adjacent processing stations are arranged one above the other in layers. The winding device 18 is schematically represented by a shuttle 20 , a drive roller 19 and a mandrel 21 . The winding device 18 also supports a bobbin magazine 22 so that an automatic bobbin change can be carried out. The auxiliary devices required for changing full bobbins are not shown in detail here. The auxiliary device can be configured, for example, as described in EP 0 916 612 A1. In this regard, reference is made to the cited literature. The winding devices of the respective processing groups form the longitudinal sides of the machine along which the doffing channel 6 extends. The full bobbins can be transported away by the doffing channel 6.

As can be seen from FIGS. 1 and 2 , a plurality of segmental suction devices 27.1 , 27.2, 27.3 etc. are provided for picking up the filaments in the processing position during the reel change. In this case, each processing group 2.1, 2.2, 2.3, etc. is assigned a partitioned suction device 27.1, 27.2, 27.3, respectively. Each sectoral suction device 27 . 1 , 27 . 2 , 27 . 3 has a pipe system 39 and a flow generator 40 . The construction of the partitioned suction device will be explained in more detail below. Each sectoral suction device 27.1, 27.2, 27.3 is assigned a waste yarn container 28.1, 28.2, 28.3. The yarn waste from the individual processing positions of the processing group 2.1 is thus picked up by the sectoral suction device 27.1 and conveyed into the yarn waste container 28.1. Correspondingly, the yarn waste from the individual processing positions of the processing group 2.2 is conveyed into the yarn waste receptacle 28.2 via the sectoral suction device 27.2.

The waste yarn containers 28.1, 28.2 and 28.3 are preferably detachably arranged in the bottom region of the equipment frame 4, preferably in the bottom region of the work frame 4.2. The yarn waste containers 28.1, 28.2 and 28.3 can thus be removed from the operating channel 5 in order to remove the yarn waste.

FIG. 3 schematically shows a first embodiment of a zoned suction device, which can be used, for example, in the embodiment of the false twist texturing machine shown in FIG. 1 .

The winding devices 18 . 1 , 18 . 2 , 18 . 3 arranged one above the other in layers are schematically represented here by a schematic diagram of a reel. Each winding device 18 . 1 , 18 . 2 , 18 . 3 is equipped with a suction inlet 33 of a pipe system 39 . The pipe system 39 is formed here from a plurality of conduits 32 which have a regulating ejector 31 in the vicinity of the suction inlet 33 . The regulating injectors 31 provided for each winding position together form a flow generator and are connected via a controllable switching valve 41 to a compressed air source (not shown here). The conduits 32 each have a blowing end 34 . The blowing end 34 of the conduit 32 leads directly in front of the opening of the waste yarn container 28 . The waste yarn container 28 is designed as a waste yarn bag 37 . The waste yarn bag 37 is secured in a support 42, for example in the bottom region of the work frame 4.2. The yarn waste bag 37 is produced, for example, as a textile fabric in open width, in particular from a woven, Gewerke, knitted or nonwoven fabric. The material of the waste yarn bag preferably consists of filament material processed in the individual processing station groups. The waste yarn collected in the waste yarn bag is thus cleaned and recycled together with the waste yarn bag.

The piping system 39 shown in FIG. 4 can be designed in such a way that, for example, all processing locations that adjoin one another in one layer each have a conduit, which opens with its blown end into a collecting pipe. Overall, therefore, three collecting pipes are assigned to each layer, which lead with their blown ends into the waste yarn container. However, it is also possible for all the lines of the individual processing locations of a processing group to open jointly into a header.

Another exemplary embodiment of a subregional suction device 27 is also schematically shown in FIG. 4 . The flow generator 40 is here formed by the low-pressure source 36 . The low pressure source 36 is directly connected to a waste yarn container 28 . For this purpose, the waste yarn container 28 is formed by a closed container. A pipe system 39 is connected to the waste yarn container 28 . The line system 39 here consists of a manifold 29 and a plurality of suction connections 30 which each have a suction inlet 33 assigned to the winding devices 18.1 to 18.3. In this case, the free end of the suction connection 30 can be provided with a seal which only opens the suction inlet 33 when required.

FIG. 5 shows a further embodiment of a zone suction device, which can be used, for example, in the embodiment of the false twist texturing machine shown in FIG. 1 . In this case, the zone suction device has a zone ejector as air flow generator 40 which is connected to a compressed air supply. The sector injector has a suction connection 43 and a blowing connection 44 . The pipe system 39 is connected to the blowing connection 44 . The piping system 39 connected to the zone injectors is the same as in the embodiment according to FIG. 4 described above. In this regard, reference is made to the above description.

In the embodiment of the false twist texturing machine shown in FIG. 1 , 12 processing positions are assigned to a partitioned suction device. The number of processing positions is exemplary. In principle, more than 12 processing positions can also be supplied simultaneously by a zone suction device. Division and allocation can be predetermined according to the application purpose of the false twist texturing machine. A false twist texturing machine is thus known, for example, from WO 01/092615, in which the working groups of a processing group can be controlled and regulated independently of the working groups of an adjacent processing group. In this regard, the false twist texturing machine shown in FIG. 1 can be designed in the same way, so that a high degree of flexibility can be achieved particularly advantageously when processing different filament materials. For the design of a false twist texturing machine of this type, reference is made to the descriptions in this respect of the cited documents.

When selecting the number of processing positions supplied by a subsection suction device, consideration should be given to keeping the operating costs as low as possible. In this regard, the number of processing positions supplied by a zoned suction device must be a minimum of ten.

list of reference signs

1, 1.1, 1.2, 1.3... Processing position

2, 2.1, 2.2, 2.3... Processing group

3 Filament

4 Equipment Rack

4.1 Module Rack

4.2 Working frame

4.3 Winding frame

5 Operation channel

6 Doffing channel

7 Creel Creel

9 Feed to the bobbin

9.1, 9.2, 9.3 wire guide

10 Pulling roller

11 Primary heating device

12 Cooling device

13 False twist texturing unit

14 stretching roller

15 Setting roller

16 Secondary heating device

17 Conveyor roller

18 winding device

19 Driving roller

20 reciprocating motion device

21 roll

22 bobbin warehouse

25 Separate drive unit

26 False twist driving device

27.1, 27.2, 27.3 Partition suction device

28.1, 28.2, 28.3 waste yarn container

29 Collection pipe

30 Manifold

31 Regulating injector

32 Catheter

33 Suction inlet

34 Blow end

36 Low voltage source

37 waste yarn bag

38 Eddy current deformation device

39 Piping system

40 Airflow Generator

41 On-off valve

42 bracket

43 Suction connector

44 Blowing connector

Claims (11)

1. one kind is used for many synthetic filaments (3) are carried out false twist texturized false twist texturing machine, have a plurality of Working positions (1.1,1.2,1.3), each Working position (1.1 wherein, 1.2,1.3) have a plurality of operation units (10 that are fixed on the equipment rack (4), 14,15,17,18), so that with one in the described long filament (3) tractive from a feeding bobbin (8), Texturized, stretch and this long filament (3) is wound into a reel (21), one aspirator (27.1,27.2) wherein is set to be used for deriving to be positioned at Working position (1.1,1.2 during changing bobbins, 1.3) in long filament (3), and aspirator (27.1,27.2) is assembled device (28.1,28.2) with a yarn and is connected, it is characterized in that, aspirator is made of a plurality of separately controllable subregion aspirators (27.1,27.2,27.3), described subregion aspirator (27.1,27.2,27.3) be equipped with respectively and give a processing group (2.1,2.2 that has more than 10 Working positions, 2.3), and it is that each subregion aspirator (27.1,27.2,27.3) has a refuse yarn container (28.1 respectively that yarn is assembled device, 28.2,28.3).

2. false twist texturing machine as claimed in claim 1, it is characterized in that, each subregion aspirator (27.1,27.2) having a subregion eductor, this subregion eductor is connected to a manifold trunk (29) by a suction joint (43) and goes up and be connected on the refuse yarn container (28.1) that is equipped with by an air blowing joint (44).

3. false twist texturing machine as claimed in claim 1, it is characterized in that, each subregion aspirator (27.1,27.2) has a low pressure source (36) and a manifold trunk (29), and described low pressure source is connected with the refuse yarn container (28.1) that is equipped with dividually with manifold trunk.

4. as claim 2 or 3 described false twist texturing machines, it is characterized in that the manifold trunk of subregion aspirator (29) has a plurality of suction joints (30), they are equipped with respectively to one in the Working position (1.1,1.2).

5. false twist texturing machine as claimed in claim 1, it is characterized in that, each subregion aspirator (27.1,27.2) have the conduit with adjusting eductor (31) (32) that each Working position is given in a plurality of outfits, wherein conduit (32) is connected with the refuse yarn container (28.1) that is equipped with its air blowing end (34).

6. false twist texturing machine as claimed in claim 5, it is characterized in that the air blowing end (34) of the conduit (32) of one of them subregion aspirator (27) feeds in the manifold trunk (29) separately and described manifold trunk (29) is connected with the refuse yarn container (28) that is equipped with.

7. as claim 5 or 6 described false twist texturing machines, it is characterized in that, regulate eductor (31) and be connected with a compressed-air supply source by a controollable switch valve (41) respectively.

8. false twist texturing machine as claimed in claim 5 is characterized in that, refuse yarn container (28.1,28.2) constitutes by each refuse yarn bag (37), and this refuse yarn bag removably is fixed in the equipment rack (4).

9. false twist texturing machine as claimed in claim 8 is characterized in that, refuse yarn bag (37) is made and can be recovered with the refuse yarn that is collected in wherein by a kind of filamentary material of processing in the Working position group.

10. as claim 1 or 9 described false twist texturing machines, it is characterized in that refuse yarn container (28.1,28.2) removably is fixed in the bottom section of equipment rack (4) in the support (42) below the operation unit.

11. as above-mentioned claim 1,2,3,5,6 or 8 described false twist texturing machines, it is characterized in that each the operation unit that constitutes a Working position group can irrespectively be controlled with each operation unit of the processing group of adjacency.

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