JP2013543065A - Equipment for heat treatment of multiple yarns - Google Patents

Abstract

  The present invention relates to an apparatus for heat treating a plurality of yarns in a textile machine, preferably a textured machine. The device according to the invention comprises a heating device (2) having a plurality of heatable heating passages (3.1, 3.2) for heating and guiding the yarn and a heating passage (3.1, 3.2). And a suction device (4) for applying a suction action to the suction device, and the suction device has a plurality of suction pipes (5.1, 5.2) arranged corresponding to the heating passage of the heating device. According to the present invention, the heating passage of the heating device forms one or a plurality of heating groups, and the heating group of the heating passage is correspondingly arranged in the suction pipe provided in the suction device. Together, they are combined in a common support (7) to form one compact group (1).

Description

  The present invention relates to an apparatus for heat-treating a plurality of yarns in a textile machine according to the superordinate concept section of claim 1.

  Especially when further processing synthetic fiber yarns, the yarns usually have a pretreatment liquid (finishing agent) coating in the form of a fluid. This ensures the running characteristics and the convergence of the individual filament bundles in the yarn. However, such liquids have the disadvantage that they usually evaporate during heat treatment, leading to undesirable environmental contamination inside the textile machine. To that extent, it is generally known to collect and derive such steam during heat treatment. The basic principle of sucking out and deriving such a vapor is already apparent, for example, from DE 2227494.

  A known device for heat-treating a plurality of yarns has a heating device and a suction device. The heating device has a plurality of heating passages, and these heating passages are usually distributed and arranged along the machine longitudinal side of the corresponding textile machine. The suction device has a plurality of suction lines for sucking out and containing the vapor generated in the heating passage. These suction pipes are arranged corresponding to the heating passages and connected to the central suction pipe. In this case, since the suction pipes also extend substantially over the machine longitudinal side of the textile machine, all the suction pipes arranged corresponding to the heating passages are distributed in parallel and connected to the suction pipes. A relatively long suction pipe is provided on the basis of the fact that a large number of processing points are provided inside the textile machine. These suction tubes are usually connected to the blower only at one end. Therefore, it cannot be avoided that various pressure states are generated in the respective suction pipes in accordance with the positions of the suction pipes in the suction pipe. Accordingly, such suction devices are typically designed such that a regulated suction output ensures sufficient containment and evacuation of vapor generated in the heating passage in each of the suction lines.

  However, when processing various yarn finenesses and yarn types in one textile machine, different amounts of steam are generated in the heating passage of the heating device. Usually, the amount of preparation liquid (Praeparation) is proportional to the yarn fineness, so that a correspondingly small amount of steam is formed in the heating device during heat treatment of yarns having a small fineness. In this case, excessively regulated suction of the vapor in the heating line leads to significant air exchange and significant energy loss in the heating path. If an excessively small suction output is generated in the suction pipe, it is not possible to avoid the occurrence of inconvenient environmental pollution around the heating passage. This is because the steam that has not been accommodated is conveyed to the surroundings via the yarn.

  Accordingly, an object of the present invention is to improve the above-described apparatus for heat-treating a plurality of yarns so that the vapor generated in the heating passage can be derived almost uniformly.

  Another object of the present invention is to form a device as described above in a particularly energy efficient manner.

  In the configuration according to the present invention that solves this problem, the heating passage of the heating device forms one or a plurality of heating groups, and the heating group of the heating passage is combined with the corresponding suction pipes of the suction device. And combined in a common support to form one compact structural unit.

  Advantageous embodiments of the invention are defined by the features and combinations of features of each dependent claim.

  The present invention is not confined to the conventional row arrangement of devices for processing and processing a large number of yarns provided in a textile machine. A correspondingly short suction path can be realized by the formation of a group according to the invention of the heating passages provided in the heating device, so that the connected suction lines are substantially identical in each of the heating paths. A suction output can be formed. To that extent, the suction line of the suction device is divided into equivalent suction groups. These suction groups may be able to control their suction output separately or together.

  In order to improve the uniformity of the suction output, further, the heating passage of the heating group and the suction conduit of the suction device are formed symmetrically on the support body and provided with suction conduits of substantially the same length. It is proposed. As a result, there is a possibility that the steam is finely adjusted and led out from the heating passage, so that various suction outputs for steam lead-out can be adjusted according to the yarn fineness.

  In order to keep the energy loss of the structural unit as small as possible, it is advantageous if a variant of the invention is formed. In this aspect, the heating passage of the heating group and the suction pipe of the suction device are arranged concentrically. In such a structural unit, the effort in the additional insulating material that insulates the heating passage from the surroundings is particularly reduced.

  It is advantageous if the variant of the invention is used to derive the steam generated in the structural unit. In this variation, the suction device has a suction tube at the center of the support, and the heating passage of the heating group is held in the support so as to surround the suction tube. Thereby, an extremely short suction path can be realized.

  In this case, the suction pipes arranged corresponding to the heating passages can be directly connected to the suction pipe at the second end, resulting in a radial arrangement having the same suction length.

  However, there is also a problem that condensate (condensation) is formed on the wall of the suction pipe when the steam is led out. In order to collect and discharge the condensate, the suction pipe is oriented substantially vertically, the lower end of the suction pipe opens into the suction chamber, and the suction chamber can be closed off. It is proposed to have Thus, all liquid deposits generated in the structural unit can be collected in the middle via the suction chamber and led out via the condensate discharge.

  However, there is also the possibility of opening the second end of the suction line directly into the suction chamber, so that only gaseous vapor is guided in the suction pipe.

  At least one blower is provided in order to adjust the suction output in the suction pipes arranged corresponding to one heating group. In this case, the suction device has one or more blowers. Thus, each of the plurality of structural units can be connected to a separate blower, or the plurality of structural units can be connected to one blower provided in the suction device.

  If each structural unit has a separate blower of the suction device, this blower is preferably integrated directly into one of the ends of the suction tube. In this case, the blower is preferably integrated in the structural unit, so that it can be controlled individually.

  In order to direct the steam in the heating passage, the suction line is advantageously arranged in the region of the outlet of the heating passage. However, the variant of the invention can advantageously be used to ensure that the heating passage is sealed and protected against the surroundings. In this variation, the suction device has two suction pipes for each heating passage, and these suction pipes are arranged corresponding to the respective parts of the heating passage. As a result, a suction or suction action is applied to the inlet of the heating passage.

  In the following, embodiments of the apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic longitudinal sectional view showing a first embodiment of a device according to the invention. It is a schematic cross-sectional view of the embodiment shown in FIG. FIG. 5 is a schematic cross-sectional view showing another embodiment of the device according to the invention. FIG. 6 is a schematic longitudinal section showing yet another embodiment of the device according to the invention.

  1 and 2 show a first embodiment of an apparatus according to the invention for heat treating a plurality of yarns. FIG. 1 schematically shows a longitudinal section and FIG. 2 shows a transverse section. The following description applies to both figures unless explicitly associated with one of the two figures.

  In the illustration of the device according to the invention, only the components which are important to the invention are shown for the sake of clarity. In particular, the illustration of the insulating material and the cover is omitted.

  The embodiment shown in FIGS. 1 and 2 shows a structural unit 1 provided with a support 7 that houses a heating device 2 and a suction device 4. In the present embodiment, the support body 7 is formed by a lower plate 7.1 and an upper plate 7.2 that are coupled via one long stand 7.3. The stand 7.3 is formed in a tubular shape in the present embodiment, and has two heating bodies 9.1, 9.2 located on opposite sides of the peripheral surface thereof. The heating elements 9.1, 9.2 are formed in segments and extend over a predetermined circumferential section of the tubular stand 7.3. A plurality of heating passages are formed in each heating body 9.1, 9.2. Here, a plurality of heating passages held on the left side of the structural unit 1 are indicated by reference numeral 3.1, and a heating passage located on the side opposite to the heating passage 3.1 is indicated by reference numeral 3.2. Has been. The heating elements 9.1, 9.2 together with the heating passages 3.1, 3.2 extend in the longitudinal direction along the stand 7.3 to the upper plate 7.2 and the lower plate 7.1. ing. A guide rail 10 is arranged in each heating passage 3.1, 3.2 for guiding one or more yarns. In this case, the guide rail 10 may be formed with or without a yarn guide to guide the yarn, and one or more per heating passage 3.1; 3.2. The thread can be guided. The heating passages 3.1 and 3.2 are heated by heating means (not shown). Accordingly, one common heating means can be arranged corresponding to each of the heating passages 3.1 or 3.2, or individual heating means can be arranged correspondingly, and these heating means are independent of each other. Can be controlled together or together.

  In the present embodiment, the heating passages 3.1 and 3.2 are oriented in the vertical direction inside the structural unit 1, so that the yarn is heated from above to below to heat the yarn. Even from the bottom to the top, it is possible to guide through the heating passages 3.1 and 3.2. Basically, however, the horizontal orientation or tilted orientation of the structural unit 1 is also possible.

  The heating passages 3.1, 3.2 are usually shielded from the surroundings with a closable cover. The cover is not shown in detail here. Furthermore, an additional insulating material for the support 7 and an additional insulating material for the surroundings may also be provided.

  The heating passage 3.1 and the heating passage 3.2 form one heating group 2.1 inside the textile machine. In this case, the heating group 2.1 may be arranged corresponding to a plurality of processing locations inside the textile machine, whereby the plurality of such structural units are located inside the textile machine. However, it is also possible that a central structural unit is formed inside the textile machine and in this structural unit the yarns of all the processing points are heat treated together.

  The suction device 4 has a plurality of suction lines in order to accommodate and extract steam generated in the heating passages 3.1, 3.2 of the heating group 2.1. These suction pipes are arranged corresponding to both ends of the heating passages 3.1, 3.2. In the present embodiment, the suction pipes arranged corresponding to the heating passages 3.1 are 5.1 for the first suction pipe group and the second suction pipe group. Is shown at 6.1. Correspondingly, the suction lines arranged corresponding to the heating lines 3.2 are indicated by the signs 5.2, 6.2. The heating passages 3.1, 3.2 and the suction lines 5.1, 5.2 and 6.1, 6.2 are formed symmetrically around the center of the support 7, so that their suction inflow The first group of suction pipes 5.1, 5.2 arranged at the portions 11.1, 11.2 corresponding to the upper ends of the heating passages 3.1, 3.2, Also have the same length. Correspondingly, the suction pipes 6.1, 6.2 arranged corresponding to the lower ends of the heating passages 3.1, 3.2 are likewise formed with the same length. The suction pipes 6.1, 6.2 are directly connected with a short distance in front of the lower ends of the heating passages 3.1, 3.2 in the region provided with the suction inlets 11.1, 11.2, respectively. Is open.

  As is clear from FIG. 2, the heating passages 3.1, 3.2 of the heating group 2.1 and the suction pipes 5.1, 5.2, 6.1 and 6.2 of the suction device 4 are The virtual circles arranged concentrically with each other, that is, the heating passages 3.1, 3.2 of the heating group 2.1 and the suction pipes 5.1, 5.2 of the suction device 4 are arranged. 6.1 and 6.2 are arranged so as to be concentric with the virtual circle in which the yarns are arranged, so that in each of the illustrated individual heating passages 3.1, 3.2 The same conditions can be provided for heat treatment. Furthermore, such a structural unit has only a very small space demand, in which case exhaust heat can only be mainly directed outwards due to the compact arrangement of the heating passages 3.1, 3.2. To that extent, the embodiment shown in FIG. 2 constitutes an energy efficient structural unit in which the means for thermal insulation can be reduced to a minimum. The number and configuration of the heating passages 3.1, 3.2 in the support 7 are exemplary. In principle, the support 7 may be completely surrounded by one or more heating bodies 9.1 or 9.2.

  As can be seen from FIG. 1, since the suction pipe 8 is arranged at the center of the support 7, the heating passages 3.1, 3.2 of the heating group 2.1 are connected to the suction pipe 8 in the support 7. Is held in an arrangement that surrounds. The suction tube 8 passes through the upper plate 7.1 and the lower plate 7.2, in which case the suction tube 8 is in a suction chamber 16 arranged with respect to the lower plate 7.1. Has a lower tube end 8.1 which opens directly into the tube. The suction lines 5.1, 5.2, 6.1 and 6.2 are held concentrically with the suction pipe 8 on the lower plate 7.1 of the support 7 and The suction outlets 12.1 and 12.2 also open directly into the suction chamber 16. The suction chamber 16 has a condensate (condensation) discharge part 17 in a section located as low as possible. The condensate discharge part 17 is formed to be closable via a closing means 18.

  A blower 13 is connected to the suction pipe 8 above the support 7 at the end of the suction pipe 8 located on the opposite side. The blower 13 can be driven via a blower motor 14. The blower 13 is connected to a steam processing system (not shown) on the blowing side.

  In the embodiment of the device according to the invention shown in FIGS. 1 and 2, a total of 6 yarns are heat-treated when one yarn is heat-treated per heating passage, and two yarns per heating passage. When heat-treated, a total of 12 yarns are heat-treated. In this case, the steam generated based on the preparation liquid (Praeparationsfluid) such as finishing oil contained in the yarn is generated at both ends of the heating passages 3.1, 3, 2 based on the negative pressure formed by the blower 13. Directly through the suction pipes 5.1, 5.2 and 6.1, 6.2 suction inlets 11.1, 11.2 arranged corresponding to the heating passages 3.1, 3.2. Sucked out and first guided into the suction chamber 16. From this suction chamber 16, the vapor is led out via the suction pipe 8. In particular, condensation or condensate generated in the suction lines 5.1, 5.2 and 6.1, 6.2 is likewise collected in the suction chamber 16. For this purpose, the suction lines 5.1, 5.2 and 6.1, 6.2 extend substantially parallel to the suction pipe 8 arranged in the vertical direction.

  The embodiment shown in FIGS. 1 and 2 shows only one structural possibility of combining a heating passage and a suction line to form a structural unit. Basically, the suction lines 5.1, 5.2, 6.1 and 6.2 may be connected directly to the suction pipe 8 via a substantially straight pipe part, whereby the heating path In the upper and lower regions of 3.1, 3.2, radial arrangements of suction lines 5.1, 5.2 and 6.1, 6.2 occur. As an alternative, there is a possibility that the blower 13 is arranged directly on the pipe end portion 8.1 of the suction pipe 8. When such a plurality of structural units are used in one textile machine, the suction pipes of the plurality of structural units can be connected to one common blower.

  Furthermore, the symmetrical arrangement of the heating passages and suction lines in the support of the structural unit likewise constitutes only one possible embodiment. In this case, another symmetrical arrangement can also be realized, depending on the nature of the textile machine. In this way, there is a possibility of forming the support body 7 including a bar (square bar) stand and a rectangular plate. Such a configuration is shown schematically in FIG. 3 in cross section.

  In the embodiment shown in FIG. 3, the symmetrical arrangement of the heating passages 3.1 and 3.2 and the suction lines 5.1 and 5.2 with respect to the embodiment shown in FIGS. Only has changed. The longitudinal section of the embodiment shown in FIG. 1 is substantially the same as the longitudinal section (not shown) of the embodiment shown in FIG. Therefore, only the differences with respect to the first embodiment will be described here, and the others will be referred to the above description, in particular the above description relating to FIG.

  In the present embodiment, the support 7 is formed by a rectangular plate. In this case, only the lower plate 7.1 is shown in the cross-sectional view. Both plates 7.1, 7.2 (not shown) are connected via a bar-shaped stand 7.3. Heating bodies 9.1 and 9.2 are held on the outer surface of the stand 7.3. These heating bodies 9.1 and 9.2 are formed in a rectangular parallelepiped shape in the present embodiment. These heating bodies 9.1, 9.2 have a plurality of heating passages 3.1, 3.2 arranged adjacent to each other. These heating passages 3.1 and 3.2 are formed in the same manner as in the above-described embodiment.

  A suction tube 8 is disposed at the center of the support 7. The suction pipe 8 is surrounded on both sides by a plurality of suction lines 5.1, 5.2 and 6.1, 6.2. The configuration and arrangement of the suction pipe and the suction pipe are the same as those in the embodiment shown in FIG. To that extent, it is associated with the above description. The embodiment shown in FIG. 3 is particularly suitable for being incorporated in one textile machine in a plurality of rows. In this case, each structural unit has an individual blower according to the embodiment shown in FIG. However, it is also possible to arrange a plurality of such structural units in rows and connect them together to one blower.

  FIG. 4 shows a further embodiment of the device according to the invention for heat treating the yarn. Temporarily textured, the yarn is post-processed after texturing, depending on the yarn type. Both textured and post-treatment require heat treatment of the yarn. In order to be able to carry out such a combined heat treatment in one structural unit as much as possible, FIG. 4 shows a heating tube 15 in addition to the heating group 2.1 of the heating passages 3.1 and 3.2. A second heating group of .1 and 15.2 is shown. The structure of the embodiment shown in FIG. 4 is almost the same as that of the embodiment shown in FIGS. In this case, the support body 7 additionally incorporates heating tubes 15.1 and 15.2. Since virtually no vapor formation occurs during the post-treatment of the yarn, the heating tubes 15.1, 15.2 pass through the lower plate 7.1 and the upper plate 7.2, whereby the heating tube The inlets and outlets for 15.1, 15.2 each occur outside the structural unit.

  In contrast to the structure of the embodiment shown in FIGS. 1 and 2, in the embodiment shown in FIG. 4, the blower 13 is incorporated in the tube end portion 8.1 of the suction tube 8. This constitutes another possibility for generating a suction flow in the suction lines 5.1, 5.2 and 6.1, 6.2.

  It should be emphasized here that the arrangement of the suction lines 5.1, 5.2 and 6.1, 6.2 in the above-described embodiment is exemplary. In principle, it is also possible for the heating channels 3.1, 3.2 to be evacuated only at one end, preferably only at the outlet end. As long as that is the case, the embodiment shown in FIGS. 1 to 4 can omit the group of suction lines 6.1, 6.2 or the group of suction lines 5.1, 5.2.

DESCRIPTION OF SYMBOLS 1 Structural unit 2 Heating device 2.1 Heating group 3.1, 3.2 Heating passage 4 Suction device 5.1, 5.2 1st suction line 6.1, 6.2 2nd suction line 7 Support body 7.1 Lower plate 7.2 Upper plate 7.3 Stand 8 Suction pipe 8.1 Pipe end 9.1, 9.2 Heating body 10.1, 10.2 Guide rail 11.1, 11.2 Suction inflow section 12.1, 12.2 Suction outflow section 13 Blower 14 Blower motor 15.1, 15.2 Heating pipe 16 Suction chamber 17 Aggregate discharge section 18 Closing means

Claims (10)

A heating device (2) having a plurality of heatable heating passages (3.1, 3.2) for heating and guiding the yarn;
A suction device (4) for applying a suction action to the heating passage (3.1, 3.2),
The suction device (4) has a plurality of suction pipes (5.1, 5.2) arranged corresponding to the heating passages (3.1, 3.2) of the heating device (2). An apparatus for heat treating a plurality of yarns in a textile machine, preferably a textured machine,
The heating passages (3.1, 3.2) of the heating device (2) form one or more heating groups;
The heating group (2.1) of the heating passage (3.1, 3.2), together with the suction pipe (5.1, 5.2) arranged correspondingly of the suction device (4), An apparatus for heat-treating a plurality of yarns, characterized in that they are combined in a common support (7) to form one compact group (1).   The heating passage (3.1, 3.2) of the heating group (2.1) and the suction pipe (5.1, 5.2) of the suction device (4) are the support ( 7. The device according to claim 1, wherein the device is formed symmetrically in 7) with suction lines (5.1, 5.2) of approximately the same length.   The heating passage (3.1) of the heating group (2.1) and the suction pipe (5.1, 5.2) of the suction device (4) are arranged concentrically with each other. The apparatus of claim 2.   The suction device (4) has a suction pipe (8) at the center of the support (7), and the heating passage (3.1, 3.2) of the heating group (2) 4. The device according to claim 1, wherein the support is held in an arrangement surrounding the suction tube. 8.   The suction pipe (5.1, 5.2) arranged at one end corresponding to the heating passage (3.1, 3.2) is connected to the suction pipe (8) via the second end. The device of claim 4 connected.   The suction pipe (8) is oriented substantially vertically, and the lower pipe end (8.1) of the suction pipe (8) opens into the suction chamber (16). Device according to claim 4 or 5, wherein 16) has a condensate discharge (17) which can be closed.   The device according to claim 6, wherein the second end of the suction line (5.1, 5.2) opens into the suction chamber (16).   At least one blower (13) is arranged in correspondence with the suction pipes (5.1, 5.2, 6.1, 6.2) arranged corresponding to one heating group (2.1). Device according to any one of the preceding claims, wherein the suction device (4) comprises one or more blowers (13).   9. The device according to claim 8, wherein the blower (13) is integrated directly into one end (8.1) of the suction tube (8).   The suction device (4) has two suction pipes (5.1, 6.1) for each heating passage (3.1), and the suction pipes (5.1, 6.1). 10) A device as claimed in any one of claims 1 to 9, wherein each of said devices is arranged corresponding to each end of said heating passage (3.1, 3.2).

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