Interlacing nozzle or texturizing nozzle and device for treating yarns

Abstract

The present invention relates to a nozzle (100) for treating a yarn, comprising at least a first yarn channel (1) and at least a second yarn channel (2). The first yarn channel (1) has a first cross-section and the second yarn channel (2) has a second cross-section. The first and the second cross-section have in each case a different size and / or a different shape.

Description

[0001] The present invention relates to a nozzle and a device for treating yarn, in particular a swirling nozzle or a texturing nozzle.

[0002] Various nozzles and devices for treating yarn are known in the prior art. These nozzles or devices are typically divided into two groups: those for producing knotted yarn and those for texturing yarn, so-called texturing nozzles. Nozzles for producing knotted yarn are swirl nozzles.

[0003] The present invention is applicable in both fields.

[0004] Various nozzles for treating yarn are known from the prior art. For example, WO 97 / 11214 A1 discloses a texturing nozzle. Another texturing nozzle is described in WO 2004 / 097087 A1. WO 2006 / 099763 A1 discloses a swirling nozzle for producing knotted yarn. Another nozzle for treating yarn is disclosed in Taiwanese utility model TW M50922U. An overview of filament treatment methods and an overview of nozzles for producing knotted yarn can be found in DE 10 2008 008 516 A1. This discloses a device for simultaneously treating several multifilament threads with parallel yarn channels.

[0005] TW M 322 411 U discloses a ceramic block for simultaneous processing of multi-ply composite yarns to reduce manufacturing time and lower production costs.

[0006] TW M 322 410 U reveals a thread air nozzle that is easy to disassemble and maintain, and can be repeatedly reused to save production costs.

[0007] WO 2006 / 099763 A1 discloses a method for producing knotted yarn or swirled yarn of DTY and / or plain yarns by means of air nozzles transverse to a yarn treatment channel, such that a double swirl is formed to generate knots.

[0008] DE 10 2008 008516 A1 discloses a device for the simultaneous treatment of multifilament threads in parallel yarn channels by means of a block nozzle, wherein at least one air supply channel is arranged for each yarn channel.

[0009] DE 20 2005 009444 U1 discloses a swirling nozzle for the production of knotted yarn, which has a yarn treatment channel with a blowing air supply bore that is oriented transversely or slightly inclined to the yarn transport direction.

[0010] SU 992 619 A1 discloses a device for the production of chemical threads with a removable body having a channel for the passage of a thread and nozzles with a rectangular cross-section which are connected to a compressed air source.

[0011] All these known devices from the prior art are designed and suitable for processing yarn of the same thread thickness (dtex). This means, in essence, that each of the nozzle plates from the prior art has an application range for yarns, threads, or a filament set that lies between a certain lower and upper limit.

[0012] The nozzles from the prior art are disadvantageous in that the nozzle has to be changed when processing yarns with a thread thickness that lies outside this specific range.

[0013] It is therefore an object of the invention to overcome the disadvantages of the prior art. In particular, a nozzle and a device are to be provided which make it possible to treat threads, filaments and yarns over a wider range of applications without any loss of quality.

[0014] These and other tasks are solved by the devices defined in the independent claims. Further embodiments are described in the dependent claims.

[0015] The invention is explained below using yarn as an example. However, the invention generally relates to the treatment of threads, filaments, or strands of filaments, and the term yarn is used here as a representative example.

[0016] A nozzle according to the invention for treating yarn, in particular a swirling nozzle or a texturing nozzle, comprises at least a first yarn channel and at least a second yarn channel. The first yarn channel has a first cross-section and the second yarn channel has a second cross-section. The first yarn channel cross-section and the second yarn channel cross-section have different dimensions and / or different shapes.

[0017] This makes it possible to provide a nozzle that can treat yarns in a wider range of applications.

[0018] Depending on the application, for example, the first yarn channel can be used to treat a thread with a thickness of 25-80 dtex, and the second yarn channel can be used to treat a thread with a thickness of 80-150 dtex. Thus, the nozzle according to the invention can treat threads with a total thickness of 25 to 150 dtex. This means that the application range is approximately doubled compared to a prior art nozzle. As an example, the first yarn channel has a rectangular cross-section with dimensions of 1.0 mm depth x 1.6 mm width, and the second yarn channel has a rectangular cross-section with dimensions of 1.15 mm depth x 1.8 mm width.

[0019] The yarn channels can have not only different cross-sections but also different dimensions or vortex chamber shapes, e.g., vortex chambers as described in WO 2006 / 099763. The dimension of the vortex chamber influences the number and characteristics of knot formation. Therefore, for example, two yarn channels can be provided for the same yarn thickness but for different knot characteristics.

[0020] Preferably, the nozzle has a base plate and a cover plate connected or connectable to the base plate. A closed yarn channel cross-section can be created by a base plate and a cover plate.

[0021] The first yarn channel and / or the second yarn channel can preferably be formed completely in the base plate or in the cover plate.

[0022] This allows the yarn channel to be manufactured entirely within one of the two plates, leaving the second plate essentially unprocessed. This simplifies both the manufacturing and assembly of the nozzle. It is advantageous if one of the two plates (base plate or top plate) is unprocessed, meaning it has a flat surface relative to the other plate. Positioning errors between the base plate and the top plate therefore have no effect on the yarn channel.

[0023] The nozzle can preferably be mounted in a first and a second position. In the first position, the first yarn channel is in its intended position relative to a yarn feed, and in the second position, the second yarn channel is in its intended position.

[0024] This makes it possible to use either the first or the second yarn channel, depending on the yarn being treated (or the yarn thickness being treated).

[0025] This makes it possible to easily adapt the nozzle to the specific requirements.

[0026] Preferably, the first yarn channel and the second yarn channel are arranged symmetrically about a pivot point. The pivot point is a virtual axis of rotation defined by the end position of the nozzle in relation to, for example, a nozzle holder and its fastening elements. A corresponding axis of rotation is shown, for example, in Figures 8a to 8d of WO 2006 / 099763. This disclosure is incorporated herein by reference. A symmetrical arrangement of the yarn channels means that they are equidistant from the axis of rotation. This means that the center planes of the yarn channels are arranged in a plane perpendicular to the axis of rotation and are equidistant from it.

[0027] This makes it possible to mount the nozzle in a first installation position and in a second installation position rotated by 180° to it, whereby the relative position of the yarn channel intended for use with respect to a yarn feed remains unchanged.

[0028] In a nozzle according to the invention, two or more first and second yarn channels are arranged alternately within the nozzle. It is also conceivable to arrange several first yarn channels and several second yarn channels on sides opposite each other from the axis of rotation. Furthermore, it is possible to provide more than two different dimensions and / or shapes in embodiments with more than two yarn channels.

[0029] This allows for the parallel processing of several identical threads of the first thread thickness with the first yarn channels and the processing of several identical threads of the second thread thickness with the second yarn channels.

[0030] Preferably, the nozzle is made of a ceramic material. Ceramic material extends the service life of the nozzle.

[0031] The first yarn channel and / or the second yarn channel preferably has a vortex chamber. A preferred geometry of a yarn treatment channel with a vortex chamber (air duct extension) is described, for example, in WO 2006 / 099763. The yarn channel cross-section can be semicircular, U-shaped, or V- be shaped.

[0032] The nozzle can be mounted in the device in a first and a second mounting position. In the first mounting position, the first yarn channel is in its intended position, and in the second mounting position, the second yarn channel is in its intended position.

[0033] This makes it possible to provide a yarn treatment device with a wider range of applications compared to prior art yarn treatment devices.

[0034] The nozzle is preferably arranged so that it can be rotated or moved within the device. Rotating or moving it allows for easy changes to the nozzle's mounting position. This movement or rotation can also be controlled automatically, for example, by an external electrical signal or pneumatically. The nozzle is then installed in a texturing machine, which generates the corresponding control commands.

[0035] This makes it easier to switch from one yarn thickness to another. In other words, switching from one yarn channel to another and vice versa is simplified.

[0036] The device preferably comprises a base body and a lever mechanism, the base body being designed to receive the nozzle. The lever mechanism is operatively connected to the nozzle at least at a first pivot point, such that the nozzle can be adjusted relative to the base body by the lever mechanism. This allows the nozzle to be moved from a first position to a second position. An example of such a base body with a lever mechanism is shown in Figures 7a to 7f of WO 2006 / 099763. This disclosure is incorporated herein by reference.

[0037] This allows the nozzle to be positioned in two designated positions. In the first position, the yarn is threaded into the nozzle, and in the second position, the yarn is processed.

[0038] The lever device can be brought into operative contact with at least the first pivot point and a second pivot point of the nozzle, wherein, when connected with the first pivot point, the first yarn channel and, when connected with the second pivot point, the second yarn channel are each arranged in the same relative position with respect to the base body.

[0039] This allows the nozzle to be easily moved so that, depending on the pivot point, one of the two yarn channels is in intended use.

[0040] This allows for easy adjustment of the nozzle geometry to the respective requirements.

[0041] Preferably, the device has a sliding carriage for receiving the nozzles. The nozzle is at least partially arranged on the sliding carriage, with the first pivot point preferably located on the sliding carriage.

[0042] This simplifies the manufacturing and geometry of the nozzle, since the functional connections for the pivot points are not formed on the nozzle but on the sliding carriage.

[0043] Preferably, the nozzle is rotatably mounted on the sliding carriage from a first position to a second position. This allows, as described above, the nozzle to be easily rotated.

[0044] Preferably, the first and second pivot points are arranged on the sliding carriage. The nozzle can thus be positioned in two locations, and its rotatable arrangement on the sliding carriage allows it to be positioned in two further locations. With such a device, four nozzle adjustments are possible. It is therefore possible to provide not only a first and second yarn channel cross-section, but also a third and a fourth yarn channel cross-section, in order to further increase the application range of the nozzles and the device.

[0045] The invention is explained by way of example with reference to the following figures. They show schematically: Figure 1a: A three-dimensional representation of a nozzle according to the invention with two different yarn channels, Figures 1b-1d: A cross-section through various embodiments of the invention with different shapes and sizes of yarn channels, Figure 1e: A top view of a nozzle according to the invention with two different swirl chambers, Figures 2a-2d: The insertion and rotation of an alternative nozzle according to the invention, Figure 3: A device according to the invention with a nozzle according to the invention, Figures 4a-4f: The replacement of a nozzle according to the invention in the device according to the invention. Figure 3 Figure 5: a side view according to Figure 4d an alternative device according to the invention as shown in Figure 3,

[0046] Figure 1aFigure 1 shows a nozzle 100 with a first yarn channel 1 and a second yarn channel 2. The nozzle 100 is made of a ceramic material. The first yarn channel 1 has a different cross-section than the second yarn channel 2.

[0047] The Figure 1b shows a cross-section through nozzle 100 according to the Figure 1a The first yarn channel 1 has a semicircular cross-section with dimensions of 1.0 mm depth x 1.6 mm width. The second yarn channel 2 also has a semicircular cross-section, with dimensions of 1.15 mm depth x 1.8 mm width.

[0048] The Figure 1c Figure 1 shows a cross-section through yarn channels 1 and 2 of an alternative nozzle 100. Yarn channel 1 is V-shaped, yarn channel 2 is U-shaped. The nozzle 100 is made from the Figure 1c The cross-sectional areas of yarn channels 1 and 2 are different. However, it is also possible to proceed similarly to the above. Figure 1aIt is possible to use two yarn channels with congruent cross-sections but different cross-sectional areas. For example, two V-shaped or two U-shaped cross-sections can be used. Different cross-sectional shapes with different cross-sectional areas are also possible. Furthermore, the yarn channels can differ along the direction of yarn movement. For example, one of the yarn channels can have a vortex chamber, while the other yarn channel is continuous. It is also conceivable to provide only different vortex chambers with otherwise identical yarn channels.

[0049] Figure 1d The figure schematically shows a yarn plate of a nozzle 100 with a plurality of first and second yarn channels 1, 2. By moving along the direction of the arrow, the first or the second yarn channels can be aligned with respect to a set of supplied yarns.

[0050] Figure 1eFigure 1 shows a top view of a nozzle 100 with a first and a second yarn channel 1, 2 with different cross-sections and with a vortex chamber 7 arranged in different positions. The nozzle is rotatable about a pivot point 3 so that either the first or the second yarn channel is supplied with a yarn G.

[0051] The Figure 2a shows the installation of a 100 nozzle as in Fig. 1e shown in a sliding carriage 6. For better clarity, identical components are shown in the Figures 2a to 2d only referred to once.

[0052] The nozzle 100 is placed here onto the sliding carriage 6. The nozzle 100 has projections 101 (see Figure 2a ) for accessing undercuts 61 of the sliding carriage 6.

[0053] Figure 2b shows a perspective view of the Figure 2a The nozzle 100 is inserted into the sliding carriage 6 in the direction of the arrow ( Figure 2a) placed on the sliding carriage 6, so that first projections 101 (in Fig. 2c (right) engage behind the first undercuts 101. The nozzle 100 is pressed downwards as soon as it reaches the end position of the insertion process ( Figure 2c and 2d ), so that its second projections 101 (in the figures on the right) can engage in the undercuts 61. Afterwards, the nozzle 100 is in its intended final position ( Figure 2d ).

[0054] Depending on the application, either the first yarn channel 1 or the second yarn channel 2 must be brought into the operating position with respect to a yarn feed (not shown). For this, the first cut ( Figure 2b ) the nozzle either as shown or rotated 180° around the axis of rotation 3 (see Fig. 1e ) rotated and inserted. After performing the step according to the Figure 2c This means that the corresponding yarn channel 1 or 2 is then in the intended position.

[0055] Fig. 2e Figure 1 shows an alternative embodiment in which a nozzle 100 can be rotated about an axis 3 in a mounted position in order to selectively align a first or a second yarn channel 1 or 2 to a yarn feed device.

[0056] Figure 3 Figure 1 shows a device 200 for treating yarn G with a nozzle 100, which is arranged in a slide 6. The device 200 has a base body 4 for receiving the nozzle 100 and a lever device 5.

[0057] The Figures 4a to 4f show details of the device 200 as well as the sequence of movements for replacing and / or rotating the nozzle 100.

[0058] In the Figures 4a to 4f The individual parts of the device 200 are only labelled once, so that clarity is ensured.

[0059] The Figure 4aFigure 200 shows the device in its closed position. The nozzle 100 is mounted on a sliding carriage 6. This sliding carriage 6 is held by the lever device 5 and the base body 4. The lever device 5 is connected to an axis 51 via a pivot point A1 on the sliding carriage 6. By folding the lever device 5 upwards, the sliding carriage 6 with the nozzle 100 is moved in the direction of the arrow.

[0060] A cover plate 102 is arranged on the base body 4 and is resiliently held. One possible embodiment of a resilient cover plate is shown, for example, in WO 97 / 11214. An alternative variant can be found in WO 2004 / 097087. The respective disclosures are included here by reference.

[0061] For the design of the base body 4 and the resilient cover plate 102 attached to it, reference is therefore made to the corresponding embodiments of the aforementioned applications.

[0062] After fully opening the lever device 5 ( Figure 4c ) releases the sliding carriage 6 from axis 51. This can be moved in the direction of the arrow (see Figure 4b ) can be removed. Afterwards, the nozzle 100 can be removed from the sliding carriage 6 ( Fig. 4e ).

[0063] Figure 4f This shows the removal of nozzle 100 from the sliding carriage 6. The nozzle 100 can then be used as described in the Figures 2a to 2d described as being rotated 180° and reinstalled.

[0064] The Figure 5 shows a side view (accordingly) Figure 4e ) of the sliding carriage 6 with a nozzle 100. Two pivot points A1 and A2 are arranged on the sliding carriage 6, wherein these pivot points A1 and A2 are optionally connected to the axis 51 of the lever device 5 (see Figure 4bThe pivot points A1 and A2 are preferably arranged at the same distance as the yarn channels 1 and 2 on the sliding carriage. This allows yarn channel 1 or yarn channel 2 to be brought into its operating position by selectively engaging pivot point A1 or A2.

Claims

1. Nozzle (100) for treating yarn, in particular an interlacing nozzle or a texturing nozzle, comprising at least a first yarn channel (1) and at least a second yarn channel (2), wherein the first yarn channel (1) has a first cross-section and the second yarn channel (2) has a second cross-section, wherein the first and the second cross-section have a different dimension and / or a different shape, wherein two or more first and second yarn channels (1; 2) are arranged alternately in the nozzle (100), characterized in that the nozzle (100) is mountable in a first and in a second position, such that in the first position the first yarn channel (1) is in the intended position with respect to a yarn feed and in the second position the second yarn channel (2) is in the intended position.

2. Nozzle (100) according to claim 1, characterized in that the nozzle has a base plate (101) and a cover plate (102) connected or connectable to the base plate (101).

3. Nozzle (100) according to claim 2, characterized in that the first yarn channel (1) and / or the second yarn channel (2) is formed completely in the base plate (101) or in the cover plate (102).

4. Nozzle (100) according to one of claims 1 to 3, characterized in that the first yarn channel (1) and the second yarn channel (2) are arranged symmetrically about a pivot point (3).

5. Nozzle (100) according to one of claims 1 to 4, characterized in that the nozzle (100) is made of a ceramic material.

6. Nozzle (100) according to one of claims 1 to 5, wherein the first yarn channel (1) and / or the second yarn channel (2) has a vortex chamber (7).

7. Apparatus (200) for treating yarn, comprising a nozzle (100) according to one of claims 1 to 6, wherein the nozzle (100) is mountable in a first and in a second mounting position, such that in the first position the first yarn channel (1) is in the intended position with respect to a yarn feed and in the second position the second yarn channel (2) is in the intended position.

8. Apparatus (200) according to claim 7, characterized in that the nozzle (100) is arranged rotatably or displaceably in the apparatus (200).

9. Apparatus (200) according to claim 7 or 8, characterized in that the apparatus has a base body (4) and a lever device (5), wherein the base body (4) is configured to receive the nozzle (100) and the lever device (5) is in operative connection or can be brought into operative connection with the nozzle at a first articulation point (A1), such that the nozzle (100) is adjustable by the lever device (5) relative to the base body (4), so that the nozzle can be brought from a first position for threading the yarn into a second intended position for treating the yarn.

10. Apparatus (200) according to claim 9, characterized in that the lever device (5) can be brought into operative connection with the nozzle at least at the first articulation point (A1) and a second articulation point (A2), such that when connected to the first articulation point (A1) the first yarn channel (1) and when connected to the second articulation point (A2) the second yarn channel (2) is respectively arranged in a same position with respect to a base body (4).

11. Apparatus (200) according to one of claims 7 to 10, characterized in that the apparatus (200) has a sliding carriage (6) for receiving the nozzle (100), wherein the nozzle (100) is at least partially arranged on the sliding carriage (6), wherein the first articulation point (A1) is preferably arranged on the sliding carriage (6).

12. Apparatus according to claim 11, characterized in that the nozzle (100) is arranged on the sliding carriage (6) so as to be rotatable from a first position into a second position.

13. Apparatus according to claim 12, characterized in that the first articulation point (A1) and the second articulation point (A2) are arranged on the sliding carriage (6).

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