This invention deals with a device or equipment for the treatment of rope-shaped textile fabric, which are known in practice as so-called JET dyeing machines.
Such JET machines or units work with transport nozzle systems for the transport of textile fabric. In the case of JET machines which work on the so-called aerodynamic principle, as they are described on pp. 748-754 in Melliland—Textilberichte 69 (1988), on pp 31-35 in Textiltechnik 38(1988) and on pp 27 41 in the Internationales Textil-Bulletin-Veredelung 31 (1985) 3 a closed loop rope-material which is in a closed container, is set in circular motion by means of a transport nozzle system, which is often designed as a JET nozzle, on which (i.e., the jet nozzle) a stream of gas acting as a medium of transport impinges. This stream of gas imparts the forward feed motion to the rope-material in the desired direction of circulation. As it is known from the EP 0014919, heated gas or jet of steam is to be used as medium of transport of the rope-material. A pre-heated bath of dye material, which is heated outside the container, is pressed through (squeezed on) the JET nozzle, which acts on the through-running rope-material. There are also textile-processing machines that work on aerodynamic principle, and they are described in the EP 0665319 A3 and 0640710 A2. In this process, a closed loop type of fabric web is subjected to a mechanical or thermal treatment, during its movement within the transporting equipment, wherein the motion or movement is actuated by a gaseous medium of transport, flowing through a JET nozzle. This is done in order to modify the volume, the gripping/holding properties, the properties of the outer surface or the water content of the fabric-web loop in a desired manner.
It is known that in the case of these JET units more number of fabric-web loops or ropes are simultaneously processed and a corresponding number of axially arranged nozzles are provided for this purpose. And there are also storing equipment allotted to these nozzles for each one of the unwrapped rope-material. In the case of these multiple storage machines, each one of the transport nozzles is surrounded by a nozzle housing in that section where the slit type of gas inlet is located, which (i.e., the housing) is connected to a tube (pipe) through its own gas pipeline. And the tube (pipe) connected to the above housing is connected to a common blower/fan. As a rule, the blower/fan itself is located outside the container used for treatment, and on the suction side it is connected to the inside of the container.
The design of the transport nozzles with their own nozzle housings and their connection to source of the transport medium via their branching pipelines is expensive. Moreover the distribution of the medium of transport and the impingement of the transport nozzles is not at times uniform.
Therefore, the aim of this invention is to further develop the device mentioned in the beginning—meant for treating rope type textile fabric—so as to eliminate these disadvantages. The device or equipment discussed herein makes use of the features claimed in patent claim 1 for solving this problem.
In this newly developed device or equipment, the transport nozzle configuration has at least two separate transport nozzles, placed axially one beside the other for each one of the respective rope-materials. In such an arrangement, the transport nozzles are fixed into a common distribution equipment for the medium of transport, which is connected to the circulating equipment for the medium of transport. And the distribution equipment has room or chamber with inlet in the nozzles meant for the medium of transport, and the medium of transport impinges on this chamber or space. Thereby, the distribution equipment of the transport medium acts on the principle known as Common-Rail-Principle. Since the transport nozzles are directly fixed in this transport-medium distributor, special housing and branch lines are not necessary, for the nozzles themselves. At the same time, a uniform distribution of the medium of transport is guaranteed for the individual transport nozzles.
In a design or execution that is normally preferred, the distributor of the medium of transport has a transport-medium distributor box, in which the nozzles are placed, and it is connected to the suction side of the circulating equipment This distributor box stretches itself out, at least over one portion of the axial length of the container. However, in such a design, it can be placed either outside or inside the container. The advantage of such a distributor box is, that it provides a very uniform distribution of the gaseous medium of transport, because the speed of the medium of transport can be maintained at a low level, by virtue of the correspondingly bigger dimensioning of the cross-section of the box. If necessary, additional features can be incorporated, in order to improve the uniformity of distribution of the medium of transport, in the individual transport nozzles. Thus, e.g., guiding members for the medium of transport can be fixed in the distributor box, which—among other things—can be made of guiding (directing) sheet metal plates, which would surround or enclose the transport nozzles, at least partially. Such guide plates create a concentric flow of the gaseous medium of transport coming from the distributor box, and direct them into the transport-medium inlet of the transport nozzle, which is shaped like an annular gap. Seen from an overall point of view, this arrangement or layout of the nozzles directly in the transport-medium distributor box, guarantees an effective and efficient flow of the medium of transport into the transport nozzles, and thus a trouble-free transport of the rope-material.
The noise emission produced by the transport nozzles fixed in the distributor box, gets automatically reduced in the distributor box, placed in the container. Simultaneously, the outward heat radiation from the distributor box is largely eliminated, because of which the thermal efficiency of the entire machine is increased. Finally, the distributor box placed in the container along with its transport-nozzles, presents an advantage in that the respective rope-material will have to be raised only to lower height, when compared to the usual or traditional machines, whereby the materials are treated gently during transport, thus avoiding damage to them.
Independent of the fact, whether the distributor box is placed inside or outside the container, the regulating medium which can be actuated and which controls the impingement of the medium of transport on the nozzles, can be attached to it, i.e., the distributor box, as an optional feature. These regulating (control) mediums can have a single-unit type of regulating element that controls the feeding-in of the medium of transport. Or alternatively, the design can be such that the transport nozzles have regulating (control) elements that can be actuated optionally, so that the impingement of the medium of transport on the individual transport nozzles can be regulated i.e., controlled independently. Apart from the necessary guiding elements mentioned above—which may be needed under certain given conditions—no other complicated and expensive diversions or the like are otherwise necessary, so as to feed the medium of transport to the transport nozzle with a higher degree of efficiency. And owing to this higher efficiency, the power (i.e., capacity or energy consumption) of the equipment that brings the medium of transport into circulation can be proportionately reduced.
The object of the sub-claims further establish or illustrate the subject or the matter dealt with in the invention.
The examples of execution of the subject or item dealt with in this invention is illustrated in the drawing. They show the following:
FIG. 1—Shows the longitudinal cross-section in a schematic illustration of a device or equipment as per this invention, designed in the form of a JET piece dyeing machine, working on aerodynamic principle and having a distributor box placed in the container to facilitate the medium of transport.
FIG. 2—Shows the same device or equipment of
FIG. 3—Shows the device or equipment dealt with in this invention in the form of a JET piece dyeing machine, working on aerodynamic principle and a transport-medium distributor box placed outside the container—showing a sectional view in a schematic representation similar to
FIG. 4—Shows the device or equipment of
FIG. 5—Shows the device or equipment as per
FIG. 6—Shows the device or equipment as per
FIG. 7—Shows the device or equipment as per
FIG. 8—Shows the equipment or device as per
FIG. 9—Shows the device or equipment as per
FIG. 10—Shows a section of the device or equipment as represented in
The device or equipment shown in
The device or equipment has a closed container 1 that is purely schematically shown in
There is a spool 8 in container 1 which is mounted such that it can rotate. It is driven by a frequency-controlled/regulated electric motor that is not shown here. The transport nozzle elements fixed in container 1 are connected with the spool, and they i.e., the transport-nozzle elements have self-contained venturi-type transport nozzle for each storage facility 3. And this is shown purely schematically in
In operation, the rope-shaped textile fabric is fed into the container 1 through the respective operating opening 2 (opening meant for use during operation or working) and placed on the spool 8 and fed through the transport nozzle 9. Thereupon, the ends of the rope-material are connected to one another to form a closed loop material. After the container 1 is loaded with the four rope-materials 4 allotted to the four respective storage facilities 4 the openings 2 are closed, and the gaseous medium of transport impinges on transport nozzles 9 whereby each loop type rope-material 4 is set in circular motion in the clockwise direction—with respect to the FIG. 9—and this is indicated by arrow 15. The rope-material 4 is treated during this circular motion by the treatment-bath stored in the container. This bath is brought into circulation and fed on to the respective rope-material 4, in the rope-material section 9. The pipelines, pumps and the like needed for this purpose, are not shown in detail. For such details, please refer to the EP 0 945 538 B1 or EP 0 078 0722 A1 mentioned already.
There is a transport-medium distributor box 16 in the container, which is placed above the storage facility 3. The box 16 juts out beyond the storage facility 3, predominantly in the direction of the axis, and it has a ceiling-like top cover 17, with rectangular form of cross-section, which is matched with the elbow(bend) of the casing(shell) of the container. This is illustrated in
As it can be seen from
As it can be specifically seen in
While in operation, the gaseous transport medium that is blown by the fan/blower 22 impinges on the inner space of the distributor box 16. The gaseous transport medium concentrically flows into the transport nozzle 9 via the annular gap 10, thus creating a transport of the rope-material 4 in a manner that will not cause any damage to the material (in other words protect it.) As the distributor box 16 has a relatively higher cross-section—as can be seen in FIG. 2—the speed/velocity of the medium of transport is comparatively lower in the distribution box 16, and as a consequence of this, the distribution of the medium of transport on the four transport nozzles 9 is very uniform.
As a consequence of placing the transport-medium distributor box 16 in the container 16, the distributor box 16 hardly radiates any heat outside the container, so much so that hardly any thermal loss of the transport medium occurs, while it (transport medium)is hot and traverses through the distributor box 16 and the transport nozzles 9. That apart, the distributor box 16 reduces the noise generated by the transport nozzles 9. As far as the wall thickness of the walls 17,18,19,& 26 is concerned, it has to be designed in such a manner that it will be sufficient if it withstands the max. rise in pressure created by the fan/blower 22, and need not be designed for max. operating pressure of the container 1. This is so because the distributor box 16 is placed in the container 1. Finally,
The only difference between the execution or design shown in
In this type of execution, the fan/blower 22 is fixed outside the container 1, which is coaxial with respect to this (container). Its high pressure duct 21 is again connected the face side 19 of the distributor box 16, through a screw coupling 20 and a corresponding piece of pipe/tube
If necessary, the distributor box 16 can be fitted with a sheath or a casing, which would especially act as sound-absorbing or heat-insulating medium. This shown in dotted lines at 30 in
The distributor box 16 that is based on the Common-Rail-Principle, also enables one to regulate the impingement of the transport-medium on transport-nozzles 9 in a simple manner, as per requirement. In the case of one of the executions of
Additionally or alternatively, the regulating component or part attached to the distributor box 16 can also be so designed that it is possible to realize individual regulation of the impingement of the transport medium, individually for every transport nozzles 9.
However—as it is to be especially seen in FIG. 8—it has a partition wall 34 which is parallel to the base wall and is at a distance from it, and which forms a boundary limit to the space of the distribution box 35, into which the high-pressure duct 21 of the fan/blower 22 placed in container 1 runs or joins.
The partition wall 34 runs below the transport nozzles 9, whereby the space above the partition wall 34 and below the ceiling wall 17 is sub-divided through diagonal walls 36 in the distributor box 16a which again form the boundaries for the spaces where the medium of transport is fed, and where there is room for one transport nozzle 9 in the respective space among them. These spaces 37 through which the transport medium is fed, are connected to the distributor box room 35 via through-running openings 38, whose cross-section of entry of the transport-medium can be regulated by means of blocking component 39, which in turn and can be individually adjusted by a setting or adjusting device 40 attached to the respective blocking component 39.
While the individual regulation or control of the impingement of transport-medium of the individual transport nozzles 9 are achieved by features incorporated in the distributor box 16a, in the case of executions shown in
In
In the preceding paragraphs the invention is described in the light of a JET treatment machine that works on aerodynamic principle. But, it is also basically possible to make use of the common-rail-concept of the JET transport-medium distribution box 16 and 16a, along with the transport nozzles 9a directly mounted on them, in JET treatment machines, that work with a liquid transport-medium and hence operated on hydraulic principle.
The container 1 is designed as a pressure-tight vessel (pressure vessel) in the type of execution dealt with herein. However, the equipment of this invention can also be used with atmospheric machines, in which the container is not pressure-tight.
Number | Date | Country | Kind |
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103 49 384 | Oct 2003 | DE | national |
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Number | Date | Country | |
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20070283725 A1 | Dec 2007 | US |