TWI815821B - 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

Nozzles and devices for yarn processing

The present invention relates to nozzles and devices for processing yarns, in particular entanglement nozzles or texturing nozzles.

Various nozzles and devices for treating yarns are known from the prior art. Usually, these nozzles or devices are divided into two groups. On the one hand, they are nozzles and devices for making slub yarn, and on the other hand, they are nozzles and devices for winding yarn, which are called Rolling nozzle. The nozzle used to make thick knotted yarn is a knotting nozzle.

The invention can be used in both fields.

Various nozzles for treating yarns are known from the prior art. Thus, for example, WO 97/11214 A1 discloses a coiling nozzle. Another coiling nozzle is described in WO 2004/097087 A1. WO 2006/099763 A1 discloses a knotting nozzle for manufacturing thick knotted yarn. Another nozzle for processing yarn is disclosed in Taiwan's new patent TW M50922U. A review of monofilament processing methods and nozzles for the production of slub yarns can be found in DE 10 2008 008 516 A1. It reveals a A device that processes multiple multifilament yarns simultaneously using parallel yarn channels.

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

Therefore, prior art nozzles have disadvantages due to the fact that the nozzles must be modified to process yarns with thread and weft densities outside this specified range.

Therefore, the object of the present invention is to eliminate the disadvantages of the prior art. In particular, the present invention aims to create effective nozzles and devices that make it possible to process warps, monofilaments and yarns in a wide range of applications without loss of quality.

This and other objectives are achieved with the device defined in the independent patent claim. Further specific examples appear in the patent appendix.

The invention is explained below by way of example with reference to yarns. However, the present invention generally also relates to the treatment of warp yarns, monofilaments or collections of monofilaments, and the term "yarn" is used as a representative of these.

The nozzle of the present invention for processing yarn, in particular the knotting nozzle or the 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 products that can be used in a wide range of applications Effective nozzles for yarn management.

Depending on the application, it is possible in this way, for example, to process warp threads with a thread density of 25 to 80 dtex with a first yarn channel and with a second yarn channel with a thread density of 80 to 150 dtex. Therefore, it is possible to process all warp yarns from 25 to 150 dtex with the nozzle of the invention. This means that the application range is approximately twice that of previous technology nozzles. A rectangular yarn channel cross section with a depth of 1.0 mm and a width of 1.6 mm serves as the cross section of the first yarn channel, and a rectangular yarn channel cross section with a depth of 1.15 mm and a width of 1.8 mm serves as the second yarn channel The cross-sections of the channels are presented here as examples.

Not only can the yarn channels have different cross-sections, but the vortex chambers can also have different sizes or shapes, such as the vortex chamber described in WO 2006/099763. The size of the vortex chamber affects the number and characteristics of formed rough knots. It is therefore also possible, for example, to provide two yarn channels for the same yarn count but different slub properties.

The nozzle preferably has a bottom plate and a top plate connected 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.

Preferably, the first yarn channel and/or the second yarn channel can be completely formed in the bottom plate or the top plate.

This makes it possible to make yarn channels entirely in either of the two plates and with the second plate essentially free of machining. This simplifies the manufacturing and installation of the nozzle. At the same time, it is advantageous that one of the two plates (bottom plate or top plate) does not have to be machined, that is, there is an opposite surface to the other plate. flat surface. As a result, positioning errors of the bottom plate relative to the top plate do not affect the yarn passage.

The nozzle is preferably mounted in both a first and a second position. In the first position, the first yarn channel is in a designated position relative to the yarn feeder, and in the second position, the second yarn channel is in the designated position.

This makes it possible to use either the first or the second yarn channel depending on the yarn to be processed (or depending on the yarn count to be processed).

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

The first yarn channel and the second yarn channel are preferably arranged symmetrically around a rotation point. Here, rotation point 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 elements. Similar rotation axis diagrams are shown, for example, in Figures 8a to 8d of WO 2006/099763. This disclosure is incorporated by reference. The symmetrical arrangement of the yarn channels means that they are at the same distance from the axis of rotation. This means that the center 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 a first mounting position and in a second mounting position by turning the latter 180 degrees, wherein the position of the yarn channel available relative to the yarn feeder remains unchanged.

In a preferred embodiment, two or more first and second yarn channels can be alternately arranged in the nozzle under various circumstances. It is also conceivable to configure a plurality of first yarns on opposite sides relative to the axis of rotation. thread channel and a plurality of second yarn channels. It is also possible to provide more than two different sizes and/or shapes in embodiments with more than two yarn channels.

This allows the parallel processing of a plurality of identical warp threads with a first thread and weft density with the first thread channel and the parallel processing of a plurality of identical warp threads with a second thread and weft density with the second thread channel.

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

The first yarn channel and/or the second yarn channel preferably have a vortex chamber. For example, a preferred geometry of a yarn treatment channel with a vortex chamber (widened blow channel) is described in WO 2006/099763. Here, the yarn channel cross-section can be of semicircular, U-shaped or V-shaped design.

Another aspect of the invention relates to a device for treating yarn, which includes a nozzle as described above. The nozzle is mountable in a first position and a second mounting position of the device. In the first position, the first yarn channel is located in a designated installation position, and in the second position, the second yarn channel is located in a designated installation position.

This makes it possible to provide a yarn processing device with a wider range of applications than prior art yarn processing devices.

The nozzle is preferably arranged in the device so that it can rotate or translate. The installation position of the nozzle can be easily changed by means of rotation or translation. The translation or rotation can also be controlled automatically and can be achieved, for example, with external electronic signals or pneumatic systems. Then, the nozzle is installed on a texturing machine that generates corresponding control commands.

This facilitates the conversion from the first yarn count to the second yarn count. This means that the changeover from one yarn channel to another yarn channel and vice versa is simplified.

The device preferably has a body and a lever arrangement, wherein the body is designed to receive the nozzle. The lever means is or can be operatively connected with the nozzle at least at a first hinge point such that the nozzle can be adjusted relative to the body using the lever means. This enables the nozzle to move from the first position to the second position. An embodiment of such a levered body is illustrated in Figures 7a to 7f of WO 2006/099763. This disclosure is incorporated by reference.

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

The lever means may be operatively connected to at least a first hinge point and a 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. Points are each in the same position relative to a subject.

This allows a simple translational movement of the nozzle so that one of the two yarn channels is in a state of use dictated by the hinge point.

This makes it possible to simply adjust the nozzle geometry to individual requirements.

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

This simplifies the manufacturing and geometry of the nozzle since 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 rotated from a first position to a second position. As mentioned above, this allows the nozzle to rotate easily.

The first hinge point and the second hinge point are preferably arranged on the sliding cassette. The nozzle can thus be moved into two positions, wherein the nozzle can be moved into two further positions by means of a rotatable arrangement of the nozzle on the sliding cassette. With this device, fourfold adjustment of the nozzle is possible. Therefore, in addition to the first and second yarn channel cross-sections, it is also possible to provide third and fourth yarn channel cross-sections in order to further extend the application range of the nozzle and the device.

1: First yarn channel

2: Second yarn channel

3:Rotation point

4:Subject

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 point

G: yarn

The present invention is explained below by way of example with reference to the accompanying drawings illustrated in schematic diagrams, wherein: Figure 1a is a three-dimensional schematic diagram of a nozzle of the present invention with two different yarn channels; Figures 1b to 1d show yarn channels passing through it with different shapes and Cross-sectional views of various large and small embodiments of the present invention. Figure 1e is a plan view of a nozzle of the present invention with two different vortex chambers. Figures 2a to 2e illustrate the insertion and rotation of an alternative nozzle of the present invention. Figure 3 illustrates The inventive device with the inventive nozzle, Figures 4a to 4f illustrate the exchange of the inventive nozzle of the inventive device in Figure 3, Figure 5 illustrates a side view of Figure 4d of an alternative device of the invention of Figure 3.

Figure la illustrates a nozzle 100 with a first yarn channel 1 and a second yarn channel 2. The nozzle 100 is made of ceramic material. The first yarn channel 1 has a different cross-section than the second yarn channel 2 .

Figure 1b illustrates a cross-section through the nozzle 100 of Figure 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 semicircular cross-section, with a depth equal to 1.15 mm and a width equal to 1.8 mm.

Figure 1c illustrates a cross-section through the yarn channels 1 and 2 of an alternative nozzle 100. Here, the yarn channel 1 is of V-shaped design and the yarn channel 2 is U-shaped. In the nozzle 100 of Figure 1c, the cross-sectional areas of the yarn channels 1 and 2 are different. However, it is also possible, in a similar manner to Figure 1a, 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 in the direction of movement of the warp yarns. For example, one of the yarn channels may have a vortex chamber, while the other yarn channel may be of continuous design. It is also conceivable to provide only different vortex chambers, but the yarn channels are identical.

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

Figure 1e is a plan view of a nozzle 100 with first and second yarns of different cross-sections and with vortex chambers 7 aligned at different points. Channel 1, 2. The nozzle can rotate around the rotation point 3, so that the first or second yarn channel is supplied with yarn G.

Figure 2a illustrates the installation of a nozzle 100 of the type shown in Figure 1e in a sliding cassette 6. For clarity of explanation, the same components in Figures 2a to 2d are labeled only once.

Here, the nozzle 100 is placed on the sliding cassette 6 . The nozzle 100 has a projection 101 (see Figure 2a) for engaging the undercut 61 of the sliding cassette 6.

Figure 2b is a perspective view of Figure 2a. To insert the sliding cassette 6, the nozzle 100 is placed on the sliding cassette 6 in the direction of the arrow (Fig. 2a), with the result that the first protrusion 101 (on the right in Fig. 2c) engages behind the first undercut 101. As soon as the nozzle 100 reaches the end position of the installation process, it is pressed downwards (Figs. 2c and 2d) so that its second projection 101 (right side of the figure) can engage in the undercut 61. After this, the nozzle 100 is in the designated end position (Fig. 2d).

Depending on the use, the first yarn channel 1 or the second yarn channel 2 must be moved to the use position relative to the yarn feeder (not shown). To do this, in the first step (Fig. 2b) it is necessary to insert the nozzle as shown in the figure or to rotate it 180 degrees around the rotation axis 3 (see Fig. 1e). After the steps of Figure 2c have been carried out, the corresponding yarn channel 1 or 2 is therefore in the designated position.

Figure 2e illustrates an alternative embodiment in which a nozzle 100 is rotatable about an axis 3 in the installed position in order 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, having a nozzle 100 arranged in a cassette 6 . The device 200 has a body 4 for receiving the nozzle 100 and a lever device 5 .

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

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

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

Arranged on the main body 4 is a top plate 102 held in a resilient manner. One possible embodiment of a resilient top plate is illustrated in WO 97/11214, for example. An alternative variant can be found in WO 2004/097087. Each disclosure is incorporated herein by reference.

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

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

Figure 4f illustrates the nozzle 100 removed from the sliding cassette 6. The nozzle 100 can then be rotated 180 degrees and reinstalled as shown in Figures 2a-2d.

The side view of Figure 5 (corresponding to Figure 4e) illustrates the sliding cassette 6 with the nozzle 100. Two hinge points A1 and A2 are arranged on the sliding cassette 6 , wherein these hinge points A1 and A2 can be selectively connected to the lever device 5 (cf. Consider the pivot 51 engagement in Figure 4b). Hinge points A1 and A2 are preferably arranged on the sliding cassette at the same distance as the yarn channels 1 and 2. By selective engagement at hinge points A1 or A2, yarn channel 1 or yarn channel 2 can therefore be moved into the position of use.

1‧‧‧The first yarn channel

2‧‧‧Second yarn channel

100‧‧‧Nozzle

Claims (14)

A nozzle (100) for processing yarn, which includes 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 different sizes and/or different shapes, wherein at least three first and second yarns Line channels (1; 2) are alternately arranged in the nozzle (100). The nozzle (100) of claim 1, wherein the nozzle has a bottom plate (101), and a top plate (102) connected to or connectable to the bottom plate (101). The nozzle (100) of claim 2, wherein the first yarn channel (1) and/or the second yarn channel (2) are completely formed in the bottom plate (101) or in the top plate (102). The nozzle (100) of any one of claims 1 to 3, wherein the nozzle can be installed in a first position and a second position, so that when in the first position, the first yarn The thread channel (1) is in the designated position and, in the second position, the second yarn channel (2) is in the designated position. The nozzle (100) of any one of claims 1 to 3, wherein the first yarn channel (1) and the second yarn channel (2) are symmetrically arranged around a rotation point (3). The nozzle (100) of any one of claims 1 to 3, wherein the nozzle (100) is made of a ceramic material. The nozzle (100) of any one of claims 1 to 3, wherein the first yarn channel (1) and/or the second yarn channel (2) has a vortex chamber (7). A device (200) for processing yarn, comprising a nozzle (100) according to any one of claims 1 to 3 and 5 to 7, wherein the nozzle (100) is mountable in a first position Centered and mounted in a second position, such that, in the first position, the first yarn channel (1) is in the designated position, and in the second position, the second yarn channel (1) 2) In the specified location. The device (200) of claim 8, wherein the nozzle (100) is configured to be rotatable or translatable in the device (200). The device (200) of claim 8 or 9, wherein the device has a body (4) and a lever device (5), wherein the body (4) is designed to receive the nozzle (100), and the lever device (4) is or can be operatively connected to the nozzle at a first hinge point (A1) such that the nozzle (100) can be relative to the body (4) by the lever device (5) to adjust so that the nozzle can move from the first position to the second position. The device (200) of claim 10, wherein the lever device (5) can be operatively connected to at least the first hinge point (A1) and a second hinge point (A2) of the nozzle, causing the first yarn to The thread channel (1) and the second yarn channel (2) are each in the same position relative to a body (4) when respectively connected to the first hinge point (A1) and the second hinge point (A2). . The device (200) of claim 8 or 9, wherein the device (200) has a sliding cassette (6) for accommodating the nozzle (100), wherein the nozzle (100) The mouth (100) is at least partially disposed on the sliding cassette (6). The device (200) of claim 12, wherein the nozzle (100) is configured such that it can be rotated from the first position to the second position on the sliding cassette (6). The device (200) of claim 13, wherein the first hinge point (A1) and the second hinge point (A2) are arranged on the sliding cassette (6).