TW201923184A - Nozzle and device for processing yarn - Google Patents

Abstract

The present invention relates to a nozzle for processing yarn, having at least one first yarn channel and at least one second yarn channel. The first yarn channel has a first cross section and the second yarn channel has a second cross section. The first and the second cross section each have a different dimension and/or a different shape.

Description

Nozzle and device for processing yarn

The present invention relates to a nozzle and a device for processing a yarn, and more particularly, to an angle nozzle or a texturing nozzle.

Various nozzles and devices for processing yarn are known in the prior art. Generally, these nozzles or devices are divided into two groups. On the one hand, they are nozzles and devices used to make slub yarns, and on the other hand, they are used to wind yarns. They are called Revolving nozzle. The nozzle used to make coarse knot yarns is a knot nozzle.

The invention can be used in both fields.

Various nozzles for processing yarns are known in the prior art. Therefore, for example, World Patent No. WO 97/11214 A1 discloses a winding nozzle. Another coiling nozzle is described in World Patent No. WO 2004/097087 A1. World Patent No. WO 2006/099763 A1 discloses a knotting nozzle for manufacturing coarse knot yarns. Another nozzle for processing yarn is disclosed in Taiwan Patent New Application TW M50922U. The examination of the monofilament processing method and the examination of the nozzles for the manufacture of coarse knot yarns can be found in German Patent No. DE 10 2008 008 516 A1. It discloses a device for simultaneously processing a plurality of multifilament yarns with parallel yarn channels.

All these conventional devices are provided from the prior art and are suitable for processing yarns with the same warp and weft density (thread count, dtex). Correspondingly, this means that for a collection of yarns or warp yarns or monofilaments, each nozzle plate from the prior art has an application range between a certain lower limit and a certain upper limit.

Therefore, the disadvantage of the prior art nozzles is that the nozzles must be changed to handle yarns with warp and weft densities outside this specified range.

It is therefore an object of the present invention to eliminate the disadvantages of the prior art. In particular, the present invention makes effective nozzles and devices to make it possible to process warp yarns, monofilaments, and yarns without loss of quality in a wide range of applications.

This and other objectives are achieved with devices defined in independent patent claims. Further specific embodiments will appear in the patent dependent items.

The invention is explained below with reference to yarns. However, the present invention also generally deals with warp yarns, monofilaments, or monofilament collections, and uses the term "yarn" as their representative.

The nozzle of the present invention for processing yarn, in particular a knotting nozzle or a winding nozzle, includes 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 sizes and / or different shapes from each other.

This makes it possible to make effective nozzles that can process yarns over a wide range of applications.

Depending on the application, it is possible in this way, for example, to treat warp yarns with a warp and weft density of 25 to 80 dtex with a first yarn channel and to treat warp yarns with a warp and weft density with 80 to 150 dtex with a second yarn channel. Therefore, it is possible to process the entire warp yarn of 25 to 150 dtex with the nozzle of the present invention. This means that the application range is about twice that of the prior art nozzle. A cross section of a rectangular yarn channel with a depth of 1.0 mm and a width of 1.6 mm was used as the cross section of the first yarn channel, and a cross section of a rectangular yarn channel with a depth of 1.15 mm and a width of 1.8 mm was the second yarn The cross-section of the channel is presented here as an example.

The yarn channels may not only have different cross sections, but also vortex chambers of different sizes or shapes, such as the vortex chamber described in World Patent No. WO 2006/099763. The size of the vortex chamber affects the number and characteristics of the coarse junctions formed. Therefore, it is also possible, for example, to provide two yarn channels for the same yarn count but different coarse knot characteristics.

The nozzle preferably has a bottom plate and a top plate connected to or connectable to the bottom plate. By means of the bottom plate and the top plate, it is possible to produce a closed yarn channel cross section.

The first yarn passage and / or the second yarn passage may preferably be completely formed in the bottom plate or the top plate.

This makes it possible to manufacture a yarn channel entirely in either of these two plates and to make the second plate substantially free of machining. This simplifies the manufacture and installation of the nozzle. At the same time, it is advantageous that one of the two plates (bottom plate or top plate) is not machined, that is, there is a flat surface opposite the other plate. As a result, the positioning error of the bottom plate relative to the top plate does not affect the yarn path.

The nozzle is preferably mountable in the first and second positions. When in the first position, the first yarn path is in a designated position relative to the yarn feeder, and when in the second position, the second yarn path is in the designated position.

This makes it possible to use the first or second yarn channel depending on the yarn to be treated (or depending on the number of yarns to be treated).

It is therefore possible to adapt the nozzle to individual requirements in a simple manner.

The first yarn passage and the second yarn passage are preferably arranged symmetrically with a rotation point as a center. Here, the point of rotation is intended to mean that the virtual axis of rotation is defined by the end position of the nozzle relative to, for example, the nozzle holder and its fastening element. For example, a similar axis of rotation is illustrated in Figures 8a to 8d of World Patent No. WO 2006/099763. This disclosure is incorporated by reference. The symmetrical arrangement of the yarn channels means that they have the same distance from the axis of rotation. This means that the median planes of the yarn channels are arranged at the same distance from the latter in a plane at right angles to the axis of rotation.

This makes it possible to install the nozzle in the first installation position and in the second installation position by turning the latter 180 degrees, wherein the position of the yarn channel for use relative to the yarn feeder remains unchanged.

In a preferred embodiment, two or more first and second yarn channels may be alternately disposed in the nozzle in each case. It is also conceivable to arrange a plurality of first yarn passages and a plurality of second yarn passages on opposite sides with respect to the rotation axis, respectively. It is also possible to provide more than two different sizes and / or shapes in a specific embodiment having more than two yarn channels.

This allows a plurality of identical warp yarns having a first warp and weft density to be processed in parallel with a first yarn channel and a plurality of identical warp yarns having a second warp and weft density to be processed in parallel with a second yarn channel.

The nozzle is preferably made of a ceramic material. Ceramic material extends nozzle life.

The first yarn passage and / or the second yarn passage preferably have a vortex chamber. For example, a preferred geometry of a yarn processing channel with a vortex chamber (widened air blowing channel) is described in World Patent No. WO 2006/099763. The cross section of the yarn channel can be a semicircular, U-shaped or V-shaped design.

Another aspect of the present invention relates to an apparatus for processing a yarn, comprising a nozzle as described above. The nozzle can be mounted in a first position and a second mounting position of the device. When in the first position, the first yarn passage is located in the designated installation position, and when in the second position, the second yarn passage is located in the designated installation position.

This makes it possible to provide a yarn processing device having a wider application range than that of the prior art yarn processing device.

The nozzle is preferably arranged in the device so that it can rotate or translate. With the help of rotation or translation, the nozzle installation position can be easily changed. The translation or rotation can also be controlled automatically and can be achieved, for example, with an external electronic signal or a pneumatic system. The nozzle is then mounted on a texturing machine that generates a corresponding control command.

This helps to switch from the first yarn count to the second yarn count. This means simplifying the transition from one yarn channel to another, and vice versa.

The device preferably has a main body and a lever device, wherein the main body is designed to receive the nozzle. The lever device is operatively connected to or can be operatively connected to the nozzle at least at the first hinge point, so that the lever device can be used to adjust the nozzle relative to the main body. This enables the nozzle to be moved from a first position to a second position. An embodiment of the main body of such a lever device is illustrated in Figures 7a to 7f of World Patent No. WO 2006/099763. This disclosure is incorporated by reference.

This makes it possible to move the nozzle to two designated positions. When in the first position, the yarn is passed into the nozzle, and when in the second position, the yarn is processed.

The lever device can be operatively connected to at least the first hinge point and the second hinge point of the nozzle, wherein the first yarn channel and the second yarn channel are connected to the first hinge point and the second hinge respectively. Dots are in the same position relative to a subject.

This allows a simple translational movement of the nozzle, whereby one of the two yarn channels is in a use state specified depending on the hinge point.

Therefore, it is possible to simply adjust the nozzle geometry for each requirement.

The device preferably has a sliding cassette containing a nozzle. In this case, the nozzle is at least partially disposed on the sliding cassette, wherein the first hinge point is preferably disposed on the sliding cassette.

This simplifies the manufacture and geometry of the nozzle because the operative connection of the hinge points is not formed on the nozzle but on the sliding cassette.

The nozzle is preferably arranged on the sliding cassette so that it can be turned from a first position to a second position. As mentioned above, this makes the nozzle easy to rotate.

The first hinge point and the second hinge point are preferably arranged on a sliding cassette. The nozzle can thus be moved to two positions, wherein the nozzle can be moved to two other positions by rotatably positioning the nozzle on a sliding cassette. With this device, quadruple adjustment of the nozzle is possible. Therefore, in addition to the first and second yarn passage cross sections, it is also possible to provide third and fourth yarn passage cross sections to further extend the application range of the nozzle and the device.

FIG. 1 a illustrates a nozzle 100 of 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 from the second yarn channel 2.

Fig. 1b illustrates a cross section through the nozzle 100 of Fig. 1a. The first yarn channel 1 has a semicircular cross section with a depth of 1.0 mm and a width of 1.6 mm. The second yarn channel 2 also has a semi-circular cross section, wherein the depth is equal to 1.15 mm and the width is equal to 1.8 mm.

FIG. 1 c illustrates a cross section of the yarn channels 1 and 2 through the replacement nozzle 100. Here, the yarn channel 1 has a V-shaped design, and the yarn channel 2 has a U-shape. In the nozzle 100 of Fig. 1c, the cross-sectional areas of the yarn channels 1 and 2 are different. However, it is also possible, in a manner similar to FIG. 1 a, to use two yarn channels with a congruent cross-section 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. In addition, the yarn channels may be moved in different directions in the warp. For example, one of the yarn channels may have a vortex chamber, while the other yarn channel may be a continuous design. It is also conceivable to provide only different vortex chambers, however the yarn channels are the same.

Fig. 1d schematically shows a yarn plate with a plurality of nozzles 100 of the first and second yarn channels 1, 2. By translation in the direction of the arrow, the first or second yarn channel can be aligned with respect to the set of supplied yarns.

Fig. 1e is a plan view of a nozzle 100 having first and second yarn passages 1, 2 of different cross sections and vortex chambers 7 arranged in a line at different points. The nozzle can be rotated at the rotation point 3 as a center, and as a result, the first or second yarn channel is supplied with the yarn G.

Fig. 2a illustrates the installation of a nozzle 100 of the kind shown in Fig. 1e in a sliding cassette 6. For clarity, the same components in FIG. 2a to FIG. 2d are labeled only once.

Here, the nozzle 100 is placed on the slide cassette 6. The nozzle 100 has a protrusion 101 (refer to FIG. 2 a) for engaging the undercut 61 of the slide cassette 6.

Fig. 2b is a perspective view of Fig. 2a. In order to insert the sliding cassette 6, the nozzle 100 is placed on the sliding cassette 6 in the direction of the arrow (FIG. 2 a). As a result, the first protrusion 101 (on the right of FIG. 2 c) is joined behind the first undercut 101. As soon as the nozzle 100 reaches the end position of the installation process, it is pressed downward (FIGS. 2c and 2d). As a result, its second protrusion 101 (right side of the drawing) can be engaged in the undercut 61. After that, the nozzle 100 is at the designated end position (Fig. 2d).

Depending on the application, the first yarn channel 1 or the second yarn channel 2 must be moved to the use position with respect to the yarn feeder (not shown). To this end, in the first step (FIG. 2b), the nozzle needs to be inserted as shown or rotated about 180 degrees around the rotation axis 3 (refer to FIG. 1e). After the steps of Fig. 2c have been carried out, the corresponding yarn channel 1 or 2 is therefore in the designated position.

Fig. 2e illustrates an alternative embodiment in which a nozzle 100 is rotatable about an axis 3 in a mounted position to align the first or second yarn channel 1 or 2 with the yarn feeding device.

FIG. 3 illustrates a device 200 for processing yarn G, which has a nozzle 100 arranged in a cassette 6. The device 200 includes a main body 4 and a lever device 5 for accommodating the nozzle 100.

Figures 4a to 4f illustrate details of the device 200 and the sequence of actions for changing and / or rotating the nozzle 100.

In FIGS. 4a to 4f, individual components of the device 200 are labeled only once to ensure clarity.

Fig. 4a illustrates the device 200 in a closed state. The nozzle 100 is arranged on the slide cassette 6. The slide cassette 6 is held by the lever device 5 and the main body 4. The lever device 5 is connected with a pivot 51 to a hinge point A1 on the slide cassette 6. By tilting the lever device 5 upward, the slide cassette 6 moves in the arrow direction together with the nozzle 100.

Arranged on the main body 4 is a top plate 102 held in an elastic manner. For example, one possible specific embodiment of the elastic top plate is illustrated in World Patent No. WO 97/11214. An alternative variant can be found in World Patent No. WO 2004/097087. Each disclosure is incorporated herein by reference.

Regarding the specific embodiment of the main body 4 and the elastic top plate 102 fastened thereto, attention is drawn to the corresponding exemplary specific embodiment of the cited application.

After the lever device 5 (FIG. 4 c) is fully opened, the pivot shaft 51 releases the slide cassette 6. The cassette can be removed in the direction of the arrow (refer to Figure 4b). Thereafter, the nozzle 100 can be removed from the slide cassette 6 (FIG. 4e).

FIG. 4f illustrates the nozzle 100 detached from the sliding cassette 6. The nozzle 100 can then be rotated 180 degrees and reinstalled, as shown in Figures 2a to 2d.

A side view (corresponding to FIG. 4e) of FIG. 5 illustrates the sliding cassette 6 of the nozzle 100. The two hinge points A1 and A2 are arranged on the sliding cassette 6, and these hinge points A1 and A2 can be selectively engaged with the pivot shaft 51 of the lever device 5 (refer to FIG. 4 b). The hinge points A1 and A2 are preferably arranged on the sliding cassette at the same interval as the yarn channels 1 and 2. With selective engagement at the hinge points A1 or A2, the yarn channel 1 or the yarn channel 2 can therefore be moved to the use position.

1‧‧‧ the first yarn channel

2‧‧‧Second yarn channel

3‧‧‧ rotation point

4‧‧‧ main body

5‧‧‧ Lever Device

6‧‧‧ sliding cassette

7‧‧‧ vortex chamber

51‧‧‧ Pivot

61‧‧‧Undercut

100‧‧‧ Nozzle

101‧‧‧ protrusion

102‧‧‧Top plate

200‧‧‧ device

A1, A2‧‧‧hinge points

G‧‧‧Yarn

The invention is explained below by way of example with reference to the accompanying drawings, in which:

Figure 1a is a three-dimensional schematic view of a nozzle of the present invention having two different yarn channels,

1b to 1d are cross-sectional views of various embodiments of the present invention having different shapes and sizes through the yarn passages,

Figure 1e is a plan view of a nozzle of the invention having two different vortex chambers,

2a to 2e illustrate the insertion and rotation of an alternative nozzle of the present invention,

Figure 3 illustrates a device according to the invention with a nozzle according to the invention,

Figures 4a to 4f illustrate the exchange of the nozzles of the invention of the device of the invention of Figure 3,

Fig. 5 illustrates a side view of Fig. 4d of an alternative device of the invention of Fig. 3;

Claims (15)

A nozzle for processing yarn, especially a knotting nozzle or a winding nozzle, comprising at least a first yarn channel and at least a second yarn channel, wherein the first yarn channel has a first cross section And the second yarn channel has a second cross section, which is characterized in that the first and the second cross section have different sizes and / or different shapes. The nozzle of claim 1, characterized in that the nozzle has a bottom plate and a top plate connected to or connectable to the bottom plate. The nozzle according to claim 2, characterized in that the first yarn channel and / or the second yarn channel are completely formed in the bottom plate or in the top plate. The nozzle according to any one of claims 1 to 3, characterized in that the nozzle can be installed in a first position and in a second position, so that, when in the first position, the first yarn The thread passage is in the designated position, and when in the second position, the second yarn passage is in the designated position. The nozzle according to any one of claims 1 to 4, characterized in that the first yarn passage and the second yarn passage are symmetrically arranged with a rotation point as a center. The nozzle according to any one of claims 1 to 5, characterized in that two or more first and second yarn channels are alternately arranged in the nozzle. The nozzle according to any one of claims 1 to 6, characterized in that the nozzle is made of a ceramic material. The nozzle according to any one of claims 1 to 7, wherein the first yarn passage and / or the second yarn passage has a vortex chamber. An apparatus for processing yarn, comprising a nozzle according to any one of claims 1 to 8, wherein the nozzle can be mounted in a first mounting position and in a second mounting position such that When in the first position, the first yarn channel is in the designated position, and when in the second position, the second yarn channel is in the designated position. The device according to claim 9, characterized in that the nozzle is configured such that it can be rotated or translated in the device. The device of claim 9 or 10, characterized in that the device has a main body and a lever device, wherein the main body is designed to receive the nozzle, and the lever device is operable with the nozzle at a first hinge point Connected or operatively connected to the nozzle, so that the nozzle can be adjusted relative to the main body by the lever device, so that the nozzle can be moved from a first position to a second specified position. The device according to claim 11, characterized in that the lever device can be operatively connected with at least the first hinge point and a second hinge point of the nozzle, so that the first yarn channel and the second yarn channel When each is connected to the first hinge point and the second hinge point, they are in the same position relative to a body. The device according to any one of claims 9 to 12, characterized in that the device has a sliding cassette containing the nozzle, wherein the nozzle is at least partially arranged on the sliding cassette, wherein the first The hinge point is preferably arranged on the slide cassette. The device according to claim 13, characterized in that the nozzle is configured so that it can be turned from a first position to a second position on the sliding cassette. The device according to claim 14, characterized in that the first hinge point and the second hinge point are arranged on the sliding cassette.