EP0924321A1 - Apparatus for spinning chemical fibres - Google Patents

Abstract

The assembly for melt spinning synthetic filaments has at least two molten material inlets to link each molten supply to a high number of outlets each with a gully for the molten material. The channels are linked to specific outlets for the flowing molten material to be distributed. The distributor has a given configuration of inlets and outlets, and connecting channels, to set the arrangement of the assembly channels. The connecting units are exchangeable at the connecting points to direct the molten flows from the supply points to the gullies. The molten material is supplied from extruders, and the gullies are spinnerets. A distributor plate is fitted for each molten material supply point (101-103). The connecting channels (6.1-6.3) at the separate distributor plates (51-53) match the number of outlets for each molten material supply. A connection is pref. a rotating or swing component, as a sliding plate between keyed upper and lower plates. The channels in the moving intermediate plate allow the molten flows from the supply stations (101-103) to be directed to different outlets. The plate has a drive which can rotate it by exactly 90 degrees . The inlets (4.1-4.3) are at the upper plate, and the outlets (38-40) are at the lower plate, or the inlets and outlets are at the lower plate. The intermediate sliding plate has a channel for each of the supply stations (101-103). The plate can be moved by a set rotary angle, to link different outlets with different inlets.

Description

The invention is concerned with a plant for spinning chemical threads, in particular with the distribution of melts from several extruders among the individual ones Spinning stations (nozzle packs) of a so-called spinning beam.

State of the art

Plants for spinning chemical threads from the melt are in DE-A-33 43 714 (= CH-B-657 633) and shown and described in EP-A-285 736. Spinning beam for such systems, see CH-B-655 520 or US-B-5,059,104. In In most plants, the melt from an extruder is as uniform as possible distributed among many spinning stations (nozzle packages) assigned to the extruder. In the filaments spun in the nozzle packs must be stretched after cooling (solidification), if necessary textured and wound into a coil. A stretch winder is e.g. EP-A-532 464.

However, it is of increasing interest to produce multicolored yarns, e.g. according to EP-A-784 109 and / or EP-A-434 601. Such a process requires several extruders, which are connected to respective spinning positions by suitable melt lines Need to become. Examples of such a system are EP-A-350 450 and US-B-5,595,699 refer to. Further explanations are in man-made fibers / textile industry, October 1985, pages 668 and 672.

In and of itself, the task of melt distribution can easily be done with conventional ones Loosen distribution means. The plant is thereby the production of multi-colored yarns "dedicated", which is not always desirable for the owner. There is therefore the task or the desire to make such a system flexible for the Production of different types of yarn (multi-colored or mono-colored). Such a system is indicated in the aforementioned article in chemical fibers / textile industry, however, no information was given to solve the configuration problems. The task could be solved by means of valves. But such a solution brings the disadvantage that at least in one configuration "dead" (unused) fuse lines would arise.

The invention therefore sees a new melt distributor for use in a Plant for spinning chemical threads. This distributor is designed for two or connect more melt sources to a higher number of melt sinks. The distributor accordingly assigns at least two melt inputs Connection with one melt source each and a higher number of melt outlets to connect to a sink. The inputs are through channels with predetermined outputs connected to the incoming through each input Melt to forward the outputs assigned to this input. The distributor can have a predetermined configuration of the inputs, outputs and connection channels have, the system lines must be arranged accordingly. However, the distributor is a replaceable element. The system configuration can therefore can be changed by replacing the distributor, provided that all distributors have the appropriate arrangement of the inputs and outputs.

The invention of course also relates to a corresponding system with the required arrangement of the fuse lines. The melt sources are usually each comprise an extruder. The melt sinks usually become filament-forming or filament processing facilities. The filament processing Facilities can work "multi-threaded".

Embodiments of the invention are described below as examples with reference to the figures of the Drawings explained in more detail. All representations are merely schematic in nature.

It shows:

Fig. 1

a system with three extruders and eighteen nozzle packages,

Fig. 2

2A and 2B show the arrangement of the line openings at a predetermined one Connection point in the system according to Fig. 1,

Fig. 3

the arrangement of the distribution channels in a first distributor to a first To achieve configuration of the system according to FIGS. 1 and 2,

Fig. 4

the arrangement of the distribution channels in a second distributor to one to achieve second configuration of the same system, and

Fig. 5

3 shows a side view of a single connection in a distributor according to FIG. 3.

Fig. 6

a system with three extruders, six spinning pumps and twelve nozzle packages, shown schematically

7, 8 and 9

a variant of the system of Fig. 6, shown schematically

Fig. 10.1 to 10.4

an element of FIGS. 8 and 9, shown in more detail and semi-schematic

11.1 to 11.4

a variant of the element of Fig. 10.1 to 10.4

Fig. 12.1

the element of Fig. 10.1 with further details, semi-schematic and in Section shown in the direction VI of Fig. 12.2

Fig. 12.2

the element of Fig. 12.1, in the direction V of Fig. 12.1, partially simplified shown.

1 comprises three extruders 10, 12 and 14 and a spinning beam 16 with nozzle packages D1 to D18, e.g. according to WO 95/07378 and / or WO 95/00684. The Extruders are usually in an upper and the spinning beam in an underneath lying floor. Extruders 10, 12 and 14 each deliver melt Color, e.g. red (R), blue (B) and yellow (G). There should be one in each nozzle package D1 to D18 mono-colored (e.g. red, blue or yellow) "master yarn". It is mostly multifilament yarns, but the invention is not based on this Application is restricted. The selected colors allude and none at all Role, the colors "red", "blue" and "yellow" are however below for the further Keep explanations as examples. The fusible lines are not visible in FIG. 1, as they are boarded up by heat insulation agents - but they lead into the spinning beam 16 into, the melt must be distributed among the nozzle packs, such as is explained below.

The processing of the spun guide yarns depends on the current production program the plant. In any case, it must be possible to close the master thread bringing together multicolored yarns, e.g. according to EP-A-784109. To this For this purpose, the nozzle packs are arranged in three groups P1 to P6, each of them Group should include a red, blue and yellow master thread. Be the group also appropriate processing facilities assigned to from the master yarns to form a multicolored yarn in this group. Since this processing for the present Invention does not matter, is based on a more detailed description or explanation waived. However, the processing devices are preferably such "Positions" classified that a "position" of one of the groups P1 to P6 the nozzle packs D1 to D18 is assigned and that of the nozzle packages of the assigned Group can process delivered yarns.

However, it should also be possible, for example, to change the system configuration in such a way that that all nozzle packages, at least one group, are only monochrome Form (original) yarns, i.e. in this case it is not desirable to use at least one Group to form a multicolored yarn. In other words, the configuration of the The system (especially the distribution lines) should be flexible enough that the manufactured one Range of yarns can be adapted to the current production program. The processing facilities must of course be adaptable to what but is not described in detail here, since the invention deals with the processing of the spun threads not concerned.

The invention is concerned with the distribution of the melt among the nozzle packs in such a flexible facility.

It is now assumed that there is a delivery line for each extruder and for each nozzle package a dedicated feed line is provided. The delivery lines lead from the respective extruders to a connection or distributor point VSt in the spinning beam 16 and the feed lines lead from the same point VS to the respective nozzle packets. At this point VS are the mouths of the delivery lines in a certain Arrangement (e.g. according to Fig. 2A) placed side by side, while the mouths of the Feed lines are also placed in a predetermined arrangement (e.g. according to Fig. 2B) are. It is now envisaged to add these mouths to one another descriptive, interchangeable connecting means to connect, the system configuration can be changed by changing the connecting means.

The optimal arrangement of the orifices for a particular system depends on "Layout" of the system. The arrangement shown is therefore for the sake of simplicity was chosen and is therefore only to be understood as an example. Here are the mouths the feed lines arranged in three groups (Fig. 2B), these groups of mouths correspond to groups P1 to P6 in FIG. 1 and one each horizontally Form "line" Z1 to Z6. The mouths of row Z1 are therefore e.g. the nozzle packs D1 to D3 and those of line Z6 assigned to the nozzle packs D16 to D18. The six lines together form three vertical "columns" because of the mouths the top line Z1 stand vertically above the mouths of the other lines. The mouths of the delivery lines also form a horizontal "line" (Fig. 2A), the red (mouth R), blue (mouth B) and yellow (mouth G) melt deliver when the system is commissioned.

The basic principle of the connection will initially be explained with reference to FIGS. 3 and 4. In Fig. 3 the mouths of the feed lines are shown again, wherein schematically three vertical connection channels KR1, KB1, KG1 also indicated are. These channels are each a pillar but also a delivery mouth (R, B, G, Fig. 2A) and they assign the columns to the respective delivery mouths. To this Purpose are the channels KR1, KB1 KG1 each one connection supports SR1, SB1, SG1, which connects the channel with the mouth R, B, G assigned to it. The canals KR1, KB1, KG1 also have six supports SV, which each channel with the Connect the mouths of the column assigned to it (Fig. 2B). In this configuration receives each nozzle pack group P1 to P6 red, blue and yellow melt and the corresponding Filaments (master yarns) can be processed into a multi-colored yarn become.

Fig. 4 shows the mouths of the feed lines in the unchanged arrangement in combination with another distributor, which (compared to Fig. 3) a changed arrangement which has channels and connection supports. There are three connection supports again SR2, SB2, SG2 present, which melt from the mouths R, B, G (Fig. 2A) on each of the three channels KR2, KB2, KG2 conduct the following are explained in more detail:

In this example, the following overall arrangement is desired (R = red, B = blue and G = yellow): row position Nozzle packs Master yarns End product Z1 P1 D1, D2, D3 R, R, R Three red yarns Z2 P2 D4, D5, D6 B, B, B Three blue yarns Z3 P3 D7, D8, D9 R, B, G Multi-colored yarn Z4 P4 D10, D11, D12 R, B, G Multi-colored yarn Z5 P5 D13, D14, D15 R, B, G Multi-colored yarn Z6 P6 D16, D17, D18 G, G, G Three yellow yarns

Each channel KR2, KB2, KG2 therefore comprises a vertical leg KR2S, KB2S KG2S and a horizontal leg KR2W, KB2W, KG2W. The horizontal one Leg KR2W is via connection supports VS with all mouths of row Z1, the horizontal leg KB2W with all mouths of row Z2 and the horizontal one Leg KG2W connected to all mouths of row Z6. The vertical leg KR2S is connected to the "other" mouths of the left column, the vertical leg KB2S with the other mouths in the middle Pillar and the vertical leg KG2S with the remaining mouths of the right Column connected.

There are of course a variety of ways to make the connections required create. In the preferred variant, exchangeable connecting means are prepared, so that by replacing the lanyard in use the system configuration can be changed.

Fig. 5 shows a connection part, which can be implemented in a replaceable means the arrangement of FIG. 3 could be used. This connector includes the Connection supports SR1 (Fig. 3), the channel KR1 (Fig. 3) and six connection supports SV1 to SV6 for connecting the connecting part with the mouths of the left Column in Fig. 3. Each column SR1 or SV1 to SV6 is with a coupling means KM (only indicated schematically) for attachment to corresponding coupling means provided on the delivery line or on the feed lines. The interchangeable In this variant, the connecting means comprises three such connecting parts, each one of the mouths R, B, G (Fig. 2A) is assigned. The three connecting parts can combined by a suitable holder (not shown) to form a connecting device become, but this is not absolutely necessary.

Similar (but more complicated) connectors can be used to create the connection 4 are built.

However, the connections are preferably made by a replaceable element (e.g. a plate or a plate package). The mouths (Fig. 2A and 2B) could e.g. be provided in end plates and the distributor element (the distributor plate) could be fixed in between (with suitable seals). In one Example, the connecting element comprises a distribution package that consists of two against each other pressed plates. The connection supports extend through the Thickness of one plate, the supports SR, SB, SG by the thickness of the other plate. The Channels KR, KB, KG are in the area opposite the other plate Plate e.g. provided as grooves. Of course, the grooves could be in both Plates are provided.

Fig. 6 shows three extruders with the marks 101, 102 and 103, each extruder creates another melt. The differences in the melt the color (e.g. B = blue, G = green, R = red) or other quality or appearance features affect.

Each extruder 101, 102 and 103 has a melt feed tube with the marks 4.1, 4.2 and 4.3 separately in a melt distributor 5.

By means of this melt distributor 5, the melt of the extruder 101 is passed through intermediate melt pipes 6.1, from extruder 102 via intermediate melt tubes 6.2 and from Extruder 103 via intermediate melt tubes 6.3 each in spinning pumps 7 and subsequently distributed in nozzle packs 8. It can be seen that there are four adjacent nozzle packs get the same melt.

The melt distributor 5 shown in more detail in FIG. 6.1 has three melt distribution plates on which are stacked on top of each other and elements not shown here are kept together and stationary.

Here, the melt of the extruder 101 is by means of the intermediate melt tubes 6.1 through the upper distributor plate 51, the melt of the extruder 102 by means of the Melt intermediate tubes 6.2 through the middle distribution plate 52 and the melt of the Extruder 103 by means of the intermediate melt tubes 6.3 through the lower distribution plate 53 led.

The distribution of the intermediate melt tubes 6.1 in one, the distribution of the Melt intermediate pipes 6.2 in another and the distribution of the melt intermediate pipes 6.3 in a further length extension of the rectangular melt distributor provided while the melt feed pipes 4.1, 4.2 and 4.3 in the fourth length dimension of the melt distributor 5 are provided, i.e. receives a nozzle package 7 three times the same melt, which by means of the connecting pipes 38, 39 and 40 the corresponding spinning pumps 7 are supplied. That means here the pipes 38 e.g. the B melt, the pipes 39 e.g. the G melt and the pipes 40 e.g. lead the R melt.

7 shows the same extruders 101, 102 and 103 with, for example, one extruder the same melt distribution as in Fig. 6 and also the same melt feed pipes 4.1, 4.2 and 4.3, which lead the melt into the melt distributor, which is marked here with 5.1. Here is the arrangement of the intermediate melt tubes 6.1,6.2 and 6.3 different in comparison to FIG. 6.

The difference is that a nozzle pack each melt, i.e. here three different ones Melting, namely the melt B, G and R receives. Accordingly lead the intermediate melt tubes 6.1, 6.2 and 6.3 from each of the three aforementioned Linear expansions of the melt distributor 1.1 against the spinning pumps 7.

The advantage of these stacked distribution plates is that firstly the whole connecting pipe system between the melt distributor 5 or 5.1 and the spinning pumps 7 without changing the melt feed all channels can be retained in the corresponding plates Provide suitable for the distribution according to melt distributor 5 or melt distributor 5.1 can be, i.e. that when changing the melt distribution, accordingly in the plates, for example by laying inserts (not shown) in the horizontal channels of the individual plates 51,52,53 and 51.1,52.1,53.1, which melt can be redirected.

These channels are in the distribution plates, which are in the direction of surface expansion of the plate each extend into the surface of each plate, so is a fourth cover plate 36, which is shown with dashed lines, is provided, around the incorporated channels of the uppermost distribution plates 51.1, 52.1 and 53.1 to cover.

8 shows, instead of a melt distributor 5, a slide plate 16 of a melt distributor slide 37 (Fig. 10.1 to 10.4) or 37.1 (Fig. 11.1 to 11.4), which in the following is explained in detail with later figures.

The slide 37 has, shown schematically here, the extruder for each melt 101, 102 and 103 a distribution channel 109 or 110 or 111, in each of which one The melt feed, for example, opens the melt of the extruder 101 via the Melt feed pipe 4.1 in the channel 109, the melt of the extruder 102 via the Melt feed pipe 4.2 into the channel 110 and the melt of the extruder 103 the melt feed pipe 4.3 into channel 111. Each channel has three melt outlets connected to which the connecting pipes 38 or 39 or 40 are connected are.

In the example of FIG. 8, the melt is passed through the connecting pipes 38 in two group spinning pumps 7 and distributed by them in four nozzle packages 8. The same distribution applies to the melt of the extruder 102 via the connecting pipes 39 or Melt the extruder 103 via the connecting pipes 40.

The channels 109, 110 and 111 are as described later in the slide plate 16, see above that the position of the channels 109, 110 and 111 by a 90 ° shift or rotation the plate can be brought into a position shown in FIG. 9.

The melt distribution of FIG. 8 corresponds to the melt distribution of FIG. 6, and the melt distribution of FIG. 9 corresponds to the melt distribution of FIG. 7, i.e. that each nozzle pack 8 receives all three melt types B, G and R.

FIGS. 10.1 to 10.4 show the melt distribution slide 37 mentioned earlier.

10.1 shows a view of the aforementioned melt distribution slide 37 with a upper plate 15, a lower plate 17 and the slide plate provided therebetween 116.

The melt distribution feed pipes 4.1, 4.2 and 4.3 open into the upper plate 15 the lower plate 17, the connecting pipes 38, 39 and 40 are connected.

10.2 shows a section corresponding to the section lines I-I of Fig. 10.1 the slide plate 116, from which the previously mentioned channels 109, 110 and 111 are shown.

10.1 and 10.2 it can be seen that the melt feed pipe 4.1 into the channel 109, the melt feed pipe 4.2 in the channel 110 and the melt feed pipe 4.3 in channel 111 opens out through top plate 15.

The connecting pipes 38 open three times through the lower plate 17, from below, viewed in FIG. 10.1, into the channel 109 while the connecting pipes 39 through the lower plate 17 into the channel 110 and the connecting pipes 40 through the lower plate 17 open into channel 111.

A later figure shows that the upper plate 15 and the lower plate 17 are stationary while the slide plate 116 is 90 ° relative to the stationary plates can be shifted or rotated around the axis of the melt feed tube 4.2.

This state of the slide plate 116, pivoted through 90 °, is shown in FIGS. 10.3 and 10.4.

From this it can be seen that the position of the melt feed pipes 4.1, 4.2 and 4.3 as well as the Location of the connecting pipes 38, 39 and 40 are the same, and that the channel 109 from the melt feed pipe 4.1, the channel 110 from the melt feed pipe 4.2 and the channel 111 is supplied by the melt feed tube 4.3. It can also be seen that through the 90 ° Rotate the slide plate 116 of the channel 109, not the connecting pipes as in FIGS. 10.1 and 10.2 38 supplied, but a connecting pipe 38, 39 and 40.

It is assumed that, for example, the melt feed pipe 4.1 also contains a melt blue color, the melt feed tube 4.2 a melt with green color and that Melt feed pipe 4.3 provides a melt with a red color obtained in accordance with FIG. 10.2 all connecting pipes 38 have a blue color, all connecting pipes 39 have a green color Color and all connecting pipes 40 a red color, while according to Fig. 10.4 one Connecting pipe 38 is a blue, another is a green and the third is a red color receives. The same applies to intermediate tubes 6.2 and 6.3. This different Distribution is also shown with FIGS. 8 and 9 in that FIG. 10.2 of FIG. 8 and Fig. 10.4 corresponds to Fig. 9.

Figures 11.1 to 11.4 correspond to different melt distributors 8 and 9, however, these figures differ from the figures 10.1 to 10.4 by the melt feed pipes 4.1, 4.2 and 4.3 no longer in the upper Plate 15.1 but open into the lower plate 17.1, in which a feed channel 112, 113 and 114 is provided. The melt of the melt feed pipe 4.1 via the channel 112 into the distribution channel 109, the melt of the melt feed pipe 4.2 via the feed channel 113 into the distribution channel 110 and the melt of the Melt feed pipe 4.3 out through the feed channel 114 into the distribution channel 111.

According to the position of the slide plate 116 in Fig. 11.2, which is the position of this Corresponding to the plate in FIG. 8, the connecting pipes 38, 39 and 40 each receive the same Melt while according to the position of the slide plate 116 according to FIG. 11.4 the connecting pipes 38, 39 and 40 each receive a different melt.

The position of the slide plate 11 6 in FIG. 11.4 corresponds to the position in FIG. 9.

The other elements, which have the same reference numerals as in the previous ones For the sake of simplicity, figures are no longer mentioned.

The same applies to the melt distribution slide 37.1 analogous to the melt distribution slide 37 that the plates in the manner described for the following figures are put together.

A particularly suitable construction for rotating the slide plate 116 is shown in FIG Figures 12.1 and 12.2 shown and described below. It is a matter of a melt distribution slide 37.2 consisting of an upper plate 15.2, a middle one Plate 18 and a lower plate 17.2, the upper and lower plate 15.2 and 17.2 for fastening the melt feed pipes 4.1, 4.2 and 4.3 or the connecting pipes 38, 39 and 40 serve. The middle plate 18 has an eyeglass-shaped recess, in the right side of the glasses, facing the figure, the slide plate 116, a drive gear 19 is housed in the left side.

Both the slide plate 116 and the drive gear (not shown) 19 have intermeshing external teeth 25. If the drive gear 19 is rotated either manually or by a motor from the outside, this rotation is transmitted to the slide plate 116 and the desired rotation is effected. An exact angle of rotation can be ensured by suitable stops or by limiting the teeth to a circular segment or other suitable measures, which are also not shown here. When the drive gear 19 is rotated by motor via a motor shaft 20 of a drive motor, for example a geared motor 21, a control 22 is provided which controls the rotation of the slide plate by the 90 degrees mentioned. This includes a pulse counter 23 angular momentum of the motor shaft 20 and delivers it to the controller. However, the invention is not limited to this type of control.
The end faces of the slide plate 116, the gear 19 and the opposite sides of the upper and lower plates 15 and 17 are ground to such a degree and with high precision to a narrow tolerance dimension that the individual channels are sealed off from one another by the extremely narrow gap and to others can still be rotated freely. The seal to the outside is achieved between the plates by means of a correspondingly strong screw connection 24. The sealing of the shaft of the gear wheel is achieved by means of suitable sealants such as stuffing boxes (not shown). The slide plate 116.1 is directly rotatably supported in the corresponding recess.
This structure has the advantage that the color can be changed without switching off the system

Claims (13)

Melt distributor for use in a plant for spinning chemical threads in order to connect two or more melt sources with a higher number of melt sinks,
characterized by at least two melt inputs for connection to a melt source and a higher number of melt outputs for connection to a melt sink, the inputs being connected by channels with predetermined outputs in order to forward the melt flowing through each input to the outputs assigned to this input. Distributor according to claim 1, characterized by a predetermined configuration of the inputs, outputs and connecting channels, the system lines accordingly must be arranged. Distributor according to claim 1 or claim 2, characterized in that the Connections by an interchangeable connection means, preferably as replaceable element are formed, created. Plant for spinning chemical threads with melt sources, melt sinks, and fuse lines, characterized by a connection point and a interchangeable connection means at this point to the lines from the Connect sources with the lines to the sinks. Installation according to claim 4, characterized in that the sources are extruders and the sinks include nozzle packs. Distributor according to claim 3, characterized in that the interchangeable Lanyards at least as many interchangeable, matching ones Distribution plates comprises that per melting source (101, 102, 103) one distribution plate It is provided and that the connection channels (6.1, 6.2, 6.3) in the individual Distribution plates (51, 52, 53) corresponding to the predetermined outputs per Melting source are arranged. Distributor according to claim 1, characterized in that the connections through a movable connecting means (37, 37.1), preferably as a rotatable or pivotable element (116) are formed, are created. Distributor according to claim 7, characterized in that the movable connecting means a slide plate (116) between an upper (15) and a lower (17) is non-rotatable plate and in the intermediate rotatable plate (116) the channels (109, 110, 111) are provided such that by a rotary movement this plate other predetermined exits the melt from the same Melt source (101, 102, 103) obtained. Distributor according to claim 8, characterized in that for the rotary movement a drive is provided for the slide plate, by means of which this plate is accurate can be rotated by 90 degrees. Distributor according to claim 8, characterized in that in the upper plate (15) the inputs (4.1, 4.2, 4.3) and in the lower plate (17) the outputs (38, 39, 40) are provided. Distributor according to claim 8, characterized in that the inputs (4.1, 4.2, 4.3) and the outputs (38, 39, 40) are provided in the lower plate (17). Distributor according to claim 8, characterized in that in the intermediate Slide plate (116) one channel (109, 110, 111) per melting source (101, 102, 103) is provided. Distributor according to claim 8, characterized in that drive means are provided which are the slide plate (116) by a predetermined angle of rotation (α) move that other predetermined outputs (38, 39, 40) with the inputs (4.1, 4.2, 4.3) are connected.

Images