JP3991523B2 - Yarn fluid processing equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a yarn fluid treatment apparatus, and more particularly, to a yarn fluid treatment apparatus capable of obtaining a high degree of entanglement while reducing the amount of fluid used.
[0002]
[Prior art]
As a means for imparting converging properties to the yarn in the yarn making process, a twisting method is generally used in which twisting is performed simultaneously when the yarn is wound around a bobbin. In this twisting method, a twisting mechanism is attached to the yarn winding section, so that the apparatus becomes large, and when the winding speed becomes higher than a certain level, twisting becomes difficult, and there is a limit to increasing productivity. There were some problems.
[0003]
In contrast to this twisting method, there is an entanglement method in which a fluid such as compressed air is jetted onto a running yarn to entangle the filaments in the yarn to provide convergence. This entanglement method makes the device extremely compact compared to the twisting mechanism, allows the device to be attached to any part of the yarn production process without being limited to the winding part, and entangles even when the yarn is traveling at high speed. It has many advantages such as being able to be easily provided.
[0004]
However, this confounding method has a drawback in that the amount of energy consumption is very large because a large amount of fluid such as compressed air must be used. That is, it has been found that the confounding method has a problem of achieving energy saving, and if this energy saving effect is achieved, productivity can be further improved.
[0005]
[Problems to be solved by the invention]
An object of the present invention is to provide a yarn fluid processing apparatus that is excellent in energy saving effect so that a high degree of entanglement can be obtained with a small amount of fluid used.
[0006]
[Means for Solving the Problems]
The present invention to achieve the above object, so as to intersect the axis of the yarn path direction and the fluid injecting hole provided with the fluid injection hole of the at least one hole, traveling the yarn road by fluid jet from the fluid injecting hole a fluid processing apparatus for entangling filaments mutual yarn that, the vertical cross section of a shape to the axis of the at least one hole of the fluid injecting hole, a long hole with its minor axis in the direction parallel to the direction of the yarn path It is characterized in that it is formed.
[0007]
Since the shape of the cross section perpendicular to the axis of the fluid injection hole is formed in the long hole with the minor axis oriented in the direction parallel to the yarn path, the major axis is perpendicular to the yarn path (perpendicular to the running yarn) In the direction perpendicular to the traveling yarn, the pressure distribution of the fluid in the direction perpendicular to the running yarn can be set as a result. The distribution can be the same as the holes and the same entanglement performance can be obtained. And since the cross-sectional area of a fluid injection hole is smaller than the fluid injection hole of a conventional apparatus, obtaining the same entanglement performance, the amount of fluid used can be reduced and a high energy saving effect can be obtained. .
[0008]
DETAILED DESCRIPTION OF THE INVENTION
1 and 2 show a fluid processing apparatus according to an embodiment of the present invention.
[0009]
In the figure, the nozzle plate 1 forms a yarn path 10 with a spacer 3 interposed between the nozzle plate 1 and a bottom plate 2 provided on the lower surface side, and an entanglement processing portion 10k is formed at a substantially middle portion in the longitudinal direction of the yarn path 10. ing. An upper cover plate 4 for supplying fluid is provided on the upper surface side of the nozzle plate 1. The upper lid plate 4, the nozzle plate 1, the spacer 3 and the bottom plate 2 laminated in this manner are integrally connected and fixed by bolts 5 at one end thereof. At the other end, the upper cover plate 4 and the nozzle plate 1 are integrally connected and fixed by bolts 6.
[0010]
A fluid inlet 7 is provided at the center of the upper cover plate 4, and a compressed fluid supply source (not shown) such as a compressor is connected to the fluid inlet 7. A buffer space 8 having a slightly larger volume is provided on the upper surface of the nozzle plate 1 corresponding to the fluid inflow port 7, and two fluid ejection holes 9, 9 extend from the buffer space 8 to the lower entanglement processing unit 10 k. It penetrates in the shape of “reverse C”.
[0011]
As shown in FIG. 3, the fluid ejection hole 9 has a long hole (specifically, an elliptical shape) in a cross section perpendicular to its axis, and the short axis of the long hole is connected to the thread. The long axis is set to be orthogonal to the direction of the yarn path 10 so as to be parallel to the direction of the path 10 (traveling direction of the yarn Y). The long hole of the cross-sectional shape of the fluid injection hole 9 has a short axis length of L and a long axis length of W, and the length ratio L / W of the short axis to the long axis is 0.80 to 0.95 ( 0.80 ≦ L / W ≦ 0.95).
[0012]
When the yarn is entangled with the fluid processing apparatus having the above-described configuration, the fluid processing apparatus is installed between the front and rear supply rollers 20 and the take-up roller 21 as shown in FIGS. 1 and 2B. The multifilament yarn Y is continuously supplied by the supply roller 20 and is taken by the take-up roller 21 while traveling on the yarn path 10 in the fluid processing apparatus. At this time, the yarn Y is in a relaxed state between the supply roller 20 and the take-up roller 21.
[0013]
On the other hand, the compressed fluid is supplied from the compressed fluid supply source to the fluid inlet 7 of the fluid processing apparatus, and is injected from the fluid injection nozzle 9 to the entanglement processing unit 10 k on the yarn path 10 through the buffer space 8. The filaments in the yarn Y are entangled while being mutually opened by the injection of the compressed fluid, and a predetermined convergence is obtained.
[0014]
It has been found that the entanglement function in which the yarn Y is entangled in this way is largely governed mainly by the pressure distribution in the direction (transverse direction) perpendicular to the running direction of the yarn Y.
[0015]
However, in the fluid treatment apparatus of the present invention, the shape in a cross section perpendicular to the axis of the fluid injection hole 9 is a long hole, and its short axis is parallel to the running direction of the yarn Y. It is directed in a direction perpendicular to the running direction of the yarn Y. If the diameter of the circular fluid injection hole in the conventional apparatus is the same as the long axis length W of the long hole, the pressure distributions in the direction perpendicular to the running direction of the yarn Y are the same, and the same degree of entanglement performance is obtained. Will be. However, since the cross-sectional area of the fluid injection hole 9 of the device of the present invention is a long hole having a long axis length of W, it is smaller than the circular fluid injection hole of the diameter W of the conventional device, and the amount of fluid used is reduced.
[0016]
That is, in the case of the fluid processing apparatus of the present invention, the pressure distribution in the direction orthogonal to the traveling direction of the yarn Y is the same as that of the conventional fluid processing apparatus, and the same amount of fluid is used while obtaining the same entanglement performance. The energy saving effect to reduce is acquired.
[0017]
In the present invention, the fluid used for the yarn entanglement treatment can be any fluid used in the conventional fluid entanglement treatment, and is not particularly limited. For example, a gas such as compressed air, steam, or hot air can be used.
[0018]
The fluid ejection hole has a cross-sectional shape perpendicular to the axis as a long hole, but the long hole is not particularly limited as long as the short axis and the long axis have different lengths. For example, an ellipse, an ellipse, etc. can be illustrated.
[0019]
The long hole needs to be arranged so that its short axis is parallel to the yarn path direction (yarn running direction). More preferably, the length ratio L / W between the minor axis length L and the major axis length W is in the range of 0.80 to 0.95 (0.80 ≦ L / W ≦ 0.95). . If the length ratio L / W between the short axis and the long axis is smaller than 0.80, the jet energy of the compressed fluid becomes small, and it becomes difficult to open the yarn, so it is difficult to obtain a desired degree of entanglement. Become. Further, when the length ratio L / W is larger than 0.95, a desired degree of entanglement can be obtained, but the energy saving effect due to the reduction in the amount of fluid used is insufficient as compared with the conventional device.
[0020]
The number of fluid ejection holes may be one or a plurality of holes, but preferably two holes or more as illustrated in the embodiment. When there are two fluid injection holes, make the fluid injection flow of both injection holes “inverted C” at the same time toward the yarn, and make the angle formed by the axes of both fluid injection holes 60 ° or more. Good. When included angle of the axis of both the fluid injecting hole is smaller than 60 °, and the flame to stabilize the pressure distribution for the two jets merge close Kunar. Even when the number of holes is three or more, the angle formed by the axes of the fluid ejection holes adjacent to each other is preferably 60 ° or more.
[0021]
The angle formed by the axis of the fluid ejection hole with respect to the running direction of the yarn is preferably 30 ° to 150 °, more preferably 60 ° to 120 °, and still more preferably 90 °.
[0022]
It is desirable that the inner wall of the yarn path, particularly the inner wall of the entangled portion, be formed of a material having excellent wear resistance. For example, it may be hard metal, ceramic, hard glass, or the like. Alternatively, these hard materials may be coated.
[0023]
The shape of the cross section orthogonal to the yarn path of the entanglement processing part is not particularly limited, but in addition to a rectangle as shown in FIG. 2A, a circle, a semicircle, an ellipse, or a triangle, a rectangle, a hexagon It may be a polygon such as. 4 (A) to 4 (D) show an example, FIG. 4 (A) is a circle, FIG. 4 (B) is a semicircle, FIG. 4 (C) is a triangle, and FIG. 4 (D). Indicates a hexagonal case.
[0024]
【Example】
Example 1
Using the fluid treatment apparatus having the configuration shown in FIG. 1 with the fluid injection holes as the following conditions, 75 denier and 36 filament polyester filament yarns were entangled by supplying compressed air under the following conditions. As a result, the entanglement degree attached to the yarn was 28.0 (pieces / m) as an average value measured 50 times with an entanglement degree meter (R-2050: manufactured by Rosseal Co.) according to JIS1013. .
[0025]
Fluid injection hole:
Long axis length W = 1.0mm, short axis length L = 0.9mm (L / W = 0.9)
Angle formed by two fluid injection holes = 90 °
Angle with respect to yarn running direction = 90 °
Compressed air:
Pressure = 0.5 MPa
Flow rate = 90 liters / min (standard condition)
Example 2
In the fluid treatment apparatus of Example 1, the confounding process was performed under the same conditions as in Example 1 except that the major axis length W of the fluid injection hole was 1.0 mm and the minor axis length L was 0.8 mm.
[0026]
As a result, the flow rate of compressed air was 80 liters / min (standard state), and the degree of entanglement was 27.5 (pieces / m).
[0027]
Comparative Example 1
In the fluid treatment apparatus of Example 1, the confounding process was performed under the same conditions as in Example 1 except that the fluid ejection holes were circular holes with a diameter of 1.0 mm.
[0028]
As a result, the flow rate of compressed air was 100 liters / min (standard state), and the degree of entanglement was 27.7 (pieces / m).
[0029]
Comparative Example 2
In the fluid treatment apparatus of Example 1, the confounding process was performed under the same conditions as in Example 1 except that the major axis length W of the fluid injection hole was 1.0 mm and the minor axis length L was 0.7 mm.
[0030]
As a result, the flow rate of compressed air was 70 liters / min (standard state), but the degree of entanglement was 11.5 (pieces / m).
[0031]
【The invention's effect】
As described above, according to the present invention, a high degree of entanglement can be obtained with a small amount of fluid used, and an excellent energy saving effect can be obtained.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an example of a fluid treatment apparatus of the present invention.
2A is a cross-sectional view taken along the line AA in FIG. 1, and FIG. 2B is a cross-sectional view taken along the line BB in FIG.
FIG. 3 is a cross-sectional view taken along the line CC in FIG.
FIGS. 4A to 4D are cross-sectional views illustrating the entanglement processing unit constituting the fluid processing apparatus of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Nozzle plate 2 Bottom plate 3 Spacer 4 Top cover plate 7 Fluid inflow port 8 Buffer space 9 Fluid injection hole 10 Yarn path 10k Entanglement processing part L Short axis length W Long axis length

Claims (5)

So as to intersect the axis of the yarn path direction and the fluid injecting hole provided with the fluid injection hole of the at least one hole, thereby entangling the filaments mutual yarn traveling on the yarn road by fluid jet from the fluid injecting hole a fluid processing apparatus, at least a hole section perpendicular shape the axis of, yarn fluid processing device which is formed in a long hole with its minor axis in the direction parallel to the direction of the yarn path of the fluid injecting hole. The yarn fluid treatment device according to claim 1, wherein a ratio L / W of a short axis length L to a long axis length W of the long hole is 0.80 to 0.95. The yarn fluid processing apparatus according to claim 1 or 2, wherein two or more fluid ejection holes are provided. The yarn fluid processing apparatus according to claim 1, 2 or 3, wherein a sandwiching angle formed by the axes of two fluid injection holes adjacent to each other is 60 ° or more. The yarn fluid processing apparatus according to claim 1, 2, 3, or 4, wherein an angle formed by an axis of the fluid ejection hole with respect to the yarn path direction is 30 ° to 150 °.

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