HK1073137B - Method and device for treating textile fabrics in roped form - Google Patents

Description

Device for treating textile fabrics in rope form

Technical Field

The invention relates to a device for treating textile goods in rope form, as is known per se in various embodiments, for example as a so-called jet dyeing machine.

Background

Such jet dyeing machines or apparatuses operate with a delivery jet device for delivering the textile. In jet dyeing machines based on the so-called aerodynamic principle, as described for example in Melliland weaving report 69 (1988), pages 748 to 754, weaving technique 38 (1988), pages 31 to 35 and international weaving report catalog 31(1985), 3, pages 27 to 41, a continuous fabric rope is circulated in a closed container by means of a transport jet system, often in the form of a jet nozzle, which uses an air flow as a transport medium, which feeds the fabric rope in a predetermined direction of circulation. In this connection, it is known, for example, from EP 0014919 to use heated gas or steam as a conveying medium for conveying the fabric in rope form. The dye liquor preheated outside the vessel is pressed in by means of spray nozzles, which act on the passing fabric rope. Textile treatment machines operating on the aerodynamic principle are also known, as described for example in EP0665319 A3 and 0640710 a2, in which a continuous fabric strip is subjected to mechanical and/or thermal treatment during its transport in a treatment device by means of a jet nozzle through which a gaseous transport medium flows, in order to change the volume, feel, appearance or moisture content of the fabric strip in a targeted manner.

In such jet dyeing machines, it is also known to treat a plurality of fabric band loops or ropes simultaneously in a single container, for which a corresponding number of axially juxtaposed delivery nozzles are provided, for which there is also provided in the container an own storage device for each folded fabric rope. In such a multi-reservoir machine, each delivery nozzle is surrounded in the region of its gap-shaped gas inlet by a nozzle housing which is connected via a separate gas connection line to a line connected to a common blower. The blower itself is generally arranged outside the treatment container and communicates with its interior on the suction side.

The construction of the delivery nozzle with its own nozzle housing and its connection to the delivery medium source via its own return line is very costly; the distribution and supply of the transport medium to the individual transport nozzles is sometimes not sufficiently uniform.

Disclosure of Invention

The object of the invention is therefore to further develop the device described at the outset for treating textile goods in rope form such that these disadvantages are eliminated.

In order to achieve this object, the device of the present invention has the following features.

Device for treating textile goods in rope form, comprising: a container; a delivery nozzle device for the textile; a transport medium circulation device connected on the pressure side to the transport nozzle device and on the suction side to the container; and storage means formed in the container for containing the respective fabric rope; wherein the delivery nozzle device has at least two separate delivery nozzles arranged axially next to one another for each fabric rope, and each delivery nozzle is inserted into a common delivery medium distributor device which is connected to the circulation device and has a chamber for supplying the delivery medium to the delivery medium inlet of each delivery nozzle.

In the new device, the delivery nozzle device has at least two separate delivery nozzles arranged axially next to one another for each fabric rope. Wherein the delivery nozzles are inserted into a common delivery medium distribution device which is connected to the delivery medium circulation device and has a chamber for supplying the delivery medium to the delivery medium inlet of the delivery nozzles. In which the transport medium distribution device implements the so-called Common-Rail-Prinzip principle. Since the delivery nozzle is directly mounted in the delivery medium distributor, its own nozzle housing and return line to the delivery nozzle are eliminated. While ensuring an even distribution of the transport medium to the individual transport nozzles in a very simple and effective manner.

In a preferred embodiment, the conveying medium distributor device has a conveying medium distributor box which is connected to the pressure side of the circulation device and in which the individual conveying nozzles are inserted. The distribution box expediently extends at least along a part of the axial length of the container, wherein it can be arranged either inside or outside the container. The advantage of this distributor box is in particular that a very uniform distribution of the gaseous transport medium can be achieved, since the transport medium velocity can be kept low by dimensioning the box cross section accordingly. If necessary, additional measures can be taken to increase the uniformity of the distribution of the transport medium to the individual transport nozzles. In this way, it is possible, for example, to provide individual conveying medium guide elements in the distributor box, which in particular may have individual guide vanes, which at least partially surround the conveying nozzles. Such guide vanes ensure a concentrated flow of gaseous transport medium from the distributor box into the annular gap-type transport medium inlet of the transport nozzle.

In general, the arrangement of the nozzle directly in the transport medium distributor ensures an effective and practical flow of the transport medium into the transport medium distributor and thus a satisfactory transport of the fabric rope.

The noise emission from a delivery nozzle disposed in the distribution box is automatically reduced in the event that the distribution box is disposed in the container. While at the same time considerably blocking the heat radiation from the distribution box to the outside, thereby increasing the thermal efficiency of the entire machine. Finally, the distribution box located in the container and the delivery nozzle provided therein also have the advantage that, during the delivery through the delivery nozzle, the respective fabric rope only has to be raised to a reduced height compared to conventional machines, thereby producing a fabric-protective delivery.

Irrespective of whether the distributor box is arranged inside or outside the container, it can be provided with a selectively actuatable control device for supplying the respective delivery nozzle with the delivery medium. In one embodiment, the control device can have a device for controlling the supply of the transport medium to the distributor box, and/or the device can be designed such that its individual transport nozzles are assigned a selectively actuatable control device, by means of which the supply of the transport medium to the individual transport nozzles can be controlled. Furthermore, the distribution of the transport medium in the distribution box does not require a large return line or the like, apart from the guide elements described above, which are suitable under certain circumstances, so that the transport medium supply of the transport nozzles is achieved with high efficiency. The power of the conveying medium circulation device can be reduced accordingly due to such high efficiency.

Drawings

Embodiments of the subject matter of the present invention are shown in the drawings. In the drawings:

FIG. 1 is a schematic longitudinal section of an apparatus according to the invention in the form of an aerodynamic jet piece dyeing machine, comprising a transport medium distributor box arranged in a container;

FIG. 2 is a side view of the device according to FIG. 1, taken along the line II-II in FIG. 1;

FIG. 3 is a schematic cross-sectional view similar to FIG. 1 of an apparatus according to the invention in the form of an aerodynamic jet piece dyeing machine, comprising a transport medium distribution box arranged outside the container;

FIG. 4 is a side view of the apparatus of FIG. 3 taken along line IV-IV of FIG. 3;

FIG. 5 shows a variant embodiment of the device according to FIG. 1 and a sectional view corresponding to FIG. 1;

fig. 6 is a side view of the device of fig. 5 taken along the line VI-VI in fig. 5.

FIG. 7 is a sectional view, corresponding to FIG. 1, of a further variant embodiment of the device according to FIG. 1;

FIG. 8 is a side view of the apparatus of FIG. 1 taken along line VIII-VIII of FIG. 7;

FIG. 9 is a sectional view of the device according to FIG. 2, corresponding to FIG. 2, and illustrating a control device for controlling the supply of the transport medium to the transport nozzles; and

fig. 10 is a partial section of the device according to fig. 9 on a different scale.

Detailed Description

The device according to the invention shown in figures 1 and 2 is an aerodynamic jet piece dyeing machine comprising a plurality of, here four, accumulators. The basic construction of such a jet piece dyeing machine is known per se (see for example EP 0945538B 1), and therefore only the features important for the present invention are described below. The device has a closed container 1, which is only schematically illustrated in fig. 1 and is designed as a substantially cylindrical high-pressure container. As can be seen from fig. 2, four actuating openings 2 open into the container 1, wherein each of these openings is assigned to a storage 3 for a continuous fabric rope 4 and can be closed in a pressure-tight manner by an actuating closure 5. The reservoir 3 is laterally delimited in the axial direction of the container 1 by means of respective intermediate walls 6. The fabric rope 4 located therein is folded as shown in fig. 7.

Rotatably mounted in the container 1 is a winch 8 which is driven by a frequency-modulated motor, not shown, and on which a delivery nozzle arrangement, which is arranged in the container 1 and has a venturi delivery nozzle 9 of its own for each reservoir 3, is arranged, which is only schematically illustrated in fig. 2. Each delivery nozzle 9 has an annular gap 10 designed as an inlet for a gaseous delivery medium or air, gas, steam or air-steam mixture, which annular gap 10 is designed between a spray cone 11 and a diffuser 12 concentric therewith. The diffuser 12 turns into an arcuate section 13 to which a folder 14 is attached.

In operation, the textile rope is fed into the container 1 through the corresponding operating opening 2 and simultaneously onto the winch 8, and the connection of the textile rope at its ends into a continuous fabric loop is effected there by means of the delivery nozzle 9. After the container 1 has been loaded with four fabric ropes 4, which are arranged from four reservoirs 3, the operating openings 2 are closed and the delivery nozzles 9 are supplied with the gaseous delivery medium, whereby each successive fabric rope 4 is circulated clockwise in fig. 2, as indicated by an arrow 15. During the circulating movement of the fabric rope 4, the fabric rope is treated by a treatment liquor contained in a container, which liquor circulates and is transferred to the respective fabric rope 4 in the region of the delivery nozzle 9. The pipes, pumps, etc. required for this purpose are not shown again. Reference is made, for example, to the abovementioned EP 0945538B 1 or EP 00780722A 1.

In the region of the container 1 above the reservoir 3, a transport medium distributor box 16 is provided which extends substantially in the axial direction along the reservoir 3 and has a substantially rectangular cross-sectional shape with a substantially dome-shaped cover wall 17. This cover wall 17, as can be seen from fig. 2, is adapted to the curvature of the outer shell of the cylindrical container 1. A space-saving arrangement in the container 1 is produced by the configuration of the distributor box 16, which distributor box 16 is closed at one end face 18 and communicates at its other end face 19 via a threaded connection, indicated by 20, with a pressure channel 21 of a blower 22, which forms part of the transport medium circulation device.

As can be seen from fig. 1, the blower 22 is arranged in the container 1 in the region of its adjacent container bottom (Kl ö perbonden) 23. Which is driven by an electric motor 24 which projects from the container 1 at the end face of the housing which is sealed with respect to the interior of the container. The blower 22 has a perforated suction pipe 25 which extends along the axial length of the reservoir 3 and is concentric with the container 1, so that it can suck in the steam-air mixture from the interior of the container and feed it via the pressure channel 21 into the transport medium distribution box 16.

As can be seen in particular from fig. 2, the transport nozzles 9 are inserted directly into the transport medium distributor box 16 so that they are arranged axially parallel to one another and extend across mutually opposite side walls 26 of the distributor box, wherein one nozzle cone 11 and the other diffuser 12 project from the respective distributor box side wall 26 and are connected thereto in a sealing manner. The delivery nozzles 9 are therefore located in the distributor box 16 with their annular gap 10, which forms the inlet for the delivery medium, and which in this respect comprises all the delivery nozzles.

In operation, the interior of the distributor box 16 is supplied with the gaseous delivery medium delivered by the blower 22, which flows centrally via the annular gap 10 into the respective delivery nozzle 9 and thus effects a uniform fabric-protecting delivery of the fabric rope 4. As can be seen from fig. 2, the transport medium velocity in the distributor box 16 is comparatively low due to the relatively large cross-section of the distributor box 16, as a result of which a very uniform transport medium distribution over the four transport nozzles 9 is produced,

the arrangement in the container 1 of the transport medium distribution box has the result that virtually no heat from the distribution box 16 can be radiated to the outside of the container, so that virtually no heat losses occur in the short-term hot transport medium flowing through the distribution box 16 and the transport nozzles 9. Furthermore, the distributor box 16 acts as a sound damper for the development of noise from the delivery nozzles 9. The wall thickness of the walls 17, 18, 19, 26 of the distributor box 16 need only be designed to the total pressure rise of the blower 22 and does not have to take into account the maximum operating pressure within the vessel 1, since the distributor box 16 is arranged within the vessel 1. Finally, fig. 2 shows that by arranging the distributor box 16 with the delivery nozzles 9 inserted therein in the upper region of the container 1, wherein the container 1 is arranged horizontally in operation with a horizontal axis, the delivery nozzles 9 can be moved closer to the central axis 27 of the container 1, as a result of which the pulling height of the fabric rope 4 from the storage 3 during the delivery is reduced, which results in a protected delivery of the fabric.

The embodiment according to fig. 3 and 4 differs from the embodiment according to fig. 1 and 2 only in that the conveying medium distribution box 16 is arranged outside the container 1. The same components as in fig. 1, 2 are therefore provided with the same reference numerals and will not be described again. The illustration of the fabric rope 4 is also omitted in fig. 4 for the sake of simplicity.

In the distributor box 16, which is rectangular in cross section and has its axis mounted directly on it parallel to the cylindrical container 1, four delivery nozzles 9 are inserted directly in a corresponding manner as in fig. 2, so that the annular gap, which constitutes the inlet for the delivery medium, is surrounded by the distributor box 16. In each delivery nozzle 9, at the elbow 13 of the diffuser outlet, the nozzle cone 11 is guided back into the container 1 via a vertical pipe 28 in the region of the respective reservoir 3, while the nozzle cone 11 is connected to the container 1 via a pipe 29 above the winch 8, which is not shown in fig. 4.

In this embodiment, the blower 22 is arranged outside the container 1 and concentrically thereto. The pressure channel 21 of which is connected again to the end face 19 of the distributor box 16 via a screw connection 20 and a corresponding pipe piece.

The distribution box 16 may, if necessary, be provided with a special insulating or sound-damping sheath or lining, which is indicated in fig. 4 by a dashed line at 30.

In the embodiment described, the transport medium distributor box 16 is designed as a pipe with a cross-section of a rectangular shape extending substantially along the length of the container 1, which is delimited on at least two sides by parallel side walls 26. Wherein the upper distribution box 16 may naturally have any cross-sectional shape that is suitable for the purpose, in particular also such that it is adapted to the inner contour or the components comprised therein when being loaded into the container 1. In particular in the case of a multi-reservoir embodiment of the device, it is expedient to provide additional measures on the distributor box 16 along its axial length in order to ensure a uniform supply of the conveying medium to the individual conveying nozzles 9, irrespective of their distance from the outlet (mindung) of the blower pressure channel 21. For this purpose, air distribution elements in the form of air guide blades, sledges (Schikanen), etc., can be provided in the distribution box. In certain cases, it is also desirable to provide guide vanes arranged annularly around the delivery nozzles 9, which ensure that the delivery medium from the distributor box 16 enters the annular gap 10 of the respective delivery nozzle in a concentrated manner. A measure which differs from the uniformity of the supply of the transport medium for the transport nozzles can also consist in varying the cross section of the distributor box 16 along its axial length, so that a uniform flow velocity is produced throughout the distributor box 16.

The distribution box 16 based on the common rail principle can also control the supply of the transport medium to the individual transport nozzles as desired. In the embodiment shown in fig. 5 and 6, this is achieved by a control device in the form of a slide 31, which is controlled by an adjusting device 32, which can be pulled back from the closed position shown in fig. 5 into an inoperative position according to arrow 33. The slide 31 is arranged between the end wall 19 of the distributor box 16 connected to the pressure channel 21 of the blower 22 and the first delivery nozzle 9 adjoining it and can thereby regulate the delivery medium to the distributor box 16 as a whole. In this way, the supply of the transport medium to the four transport nozzles 9 can be adjusted uniformly for all transport nozzles.

In addition or alternatively, the control device associated with the distributor box 16 can also be designed such that it can individually control the supply of the transport medium to the individual transport nozzles 9. One such embodiment is illustrated in fig. 7 and 8. The transport medium distributor box 16a provided in the container 1 is basically configured in a similar manner to the distributor box 16 according to fig. 1 and 2. However, it comprises, as can be seen in particular from fig. 8, an intermediate wall 34 parallel to the bottom wall and spaced therefrom, which delimits the actual distributor box chamber 35, into which the pressure channel 21 of the blower 22 arranged in the container 1 opens. The partition wall 34 extends below the respective delivery nozzles 9, wherein the space in the distributor box 16a above the partition wall 34 and below the cover wall 17 is subdivided by transverse walls 36, which transverse walls 36 define a delivery medium supply chamber or chamber 37 which comprises one delivery nozzle 9 each. The transport medium supply chambers 37 communicate with the distributor chamber 35 via through-openings 38, the passage cross-sections of which for the transport medium can be influenced in each case by a closing element 39, which can be adjusted in each case by an associated adjusting device 40.

Although in the embodiments according to fig. 7 and 8 the individual control of the supply of the transport medium to the individual transport nozzles 9 is achieved by measures in the distributor box 16a, embodiments are also possible in which measures are taken directly for the individual transport nozzles 9. One such embodiment is shown in fig. 9 and 10.

In this embodiment, a sliding sleeve 41 is mounted on the nozzle cone 11 defining the annular gap 10 and/or on the enlarged portion of the diffuser 12 forming the mixing nozzle, which sleeve, as can be seen in particular from fig. 10, can be adjusted axially back and forth in the direction of the double arrow 42 so that it covers the annular gap 10 to a greater or lesser extent. In this way, the flow rates of the transport medium in the respective transport nozzles 6 can be set in each case, which is necessary, for example, for the transport of the fabric protection at maximum speed. The possibility of being able to completely close the annular gap 10 allows the necessity of closing the lid, which would otherwise be necessary if a delivery nozzle 9 were not utilized, to be eliminated. The omission of the closing cover eliminates the flow resistance thereof, thereby again increasing the efficiency of the entire device.

In fig. 5 to 10, the same reference numerals as in fig. 1 and 2 are used for the same components, and the description of these components is omitted here.

The invention has been described above with the aid of a jet processor according to the aerodynamic principle. The common rail principle of the conveying medium distributor boxes 16, 16a with the conveying nozzles 9 inserted directly therein can also be basically applied to jet-type treatment machines which operate with a fluid conveying medium, i.e. with a hydraulic principle.

In the exemplary embodiment described, the container 1 is pressure-resistant. The invention is also applicable to so-called atmospheric machines, i.e. machines in which the container is not pressure-resistant.

Claims (19)

1. Device for treating textile goods in rope form, comprising:

a container (1);

a delivery nozzle device for the textile;

a transport medium circulation device (21, 22, 25) connected to the transport nozzle device on the pressure side and to the container on the suction side; and

-storage means formed inside the container to contain the respective fabric in rope form (4); wherein

The delivery nozzle device has at least two separate delivery nozzles (9) arranged axially next to one another for each fabric rope (4) and each delivery nozzle is inserted into a common delivery medium distributor (16, 16a) which is connected to the circulation device and has a chamber for supplying the delivery medium to the delivery medium inlet (10) of each delivery nozzle.

2. Device according to claim 1, characterized in that the transport medium distribution device has a transport medium distribution box (16, 16a) which is connected to the pressure side of the circulation device (21, 22, 25) and in which the transport nozzles (9) are inserted.

3. Device according to claim 2, characterized in that the distribution box (16, 16a) is arranged extending at least along a part of the axial length of the container (1).

4. A device according to claim 2 or 3, characterized in that the distribution box (16) is arranged inside the container (1).

5. A device according to claim 2 or 3, characterized in that the distribution box (16) is arranged outside the container (1).

6. Device according to claim 5, characterized in that each delivery nozzle (9) is connected to the container (1) at its rope-like fabric inlet side and outlet side via a pipe arrangement (28, 29), respectively.

7. Device according to claim 2, characterized in that the distributor box (16, 16a) is designed to surround the delivery nozzles at least in the region of its delivery medium inlet (10).

8. Device according to claim 1 or 2, characterized in that the transport medium distribution device has a selectively actuatable control device (31, 39, 41) for the transport medium supply of the individual transport nozzles (9).

9. Device according to claim 8, characterized in that the control device has means (31, 32) for controlling the supply of the transport medium to the distribution box (16, 16 a).

10. Device according to claim 2, characterized in that the delivery nozzles are assigned selectively actuatable control devices (39, 41), by means of which the supply of the delivery medium to the individual delivery nozzles can be controlled.

11. Device according to claim 10, characterized in that the control device has a closing device (31) by means of which the transport medium supply chamber (37) associated with the individual transport nozzles (9) and communicating with the interior of the distributor box (16a) can be completely or partially closed off relative to the distributor box.

12. Device according to claim 11, characterized in that the supply chambers (37) for the transport medium of the individual transport nozzles (9) are divided in the distributor box (16a) and each of these supply chambers has a transport medium supply opening (38) which opens into the interior of the distributor box and whose passage cross section can be influenced by the closing device (31).

13. Device according to claim 2, characterized in that a transport medium guide element is provided in the distribution box (16, 16 a).

14. Device according to claim 13, characterized in that the transport medium guide element has guide vanes which at least partially surround the transport nozzles (9).

15. The apparatus of claim 1, wherein the transport medium is gaseous.

16. The apparatus of claim 1, wherein the transport medium is liquid.

17. Device according to claim 16, characterized in that the transport medium circulation means have at least one blower (22) which is arranged in the container (1).

18. Device according to claim 17, characterized in that the blower is arranged in the region of an end wall (23) of the container (1).

19. Device according to claim 17 or 18, characterized in that the blower (22) is electrically driven and the drive motor (24) is at least partly located outside the container (1).