JPH086216B2 - Surface structure of textile machine structural parts - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surface structure of a high-speed rotating textile machine structural component, and more particularly, to reduce air resistance caused by high-speed rotation and to form an air flow having a great influence around the component. The present invention relates to a surface structure of a textile machine structural component that does not occur.

[0002]

2. Description of the Related Art Textile machine structural parts that rotate at high speed in the atmosphere are subject to air resistance, and laminar flow and turbulent flow are generated around the parts. For example, FIG. 5 is an explanatory view showing a double twister for spinning, and this device is composed of a twisting portion formed in a lower portion of the snail wire 15 and a winding guide portion formed in an upper portion thereof.

The twisting portion passes through a protective frame 14 for accommodating the untwisted yarn package 1, a flyer 12 that rotates in the horizontal direction above the protective frame 14, and a bobbin of the untwisted yarn package 1 at the center of the flyer 12. The hollow spindle 11 thus arranged and the rotor 13 that rotates at a high speed under the protective frame 14 are constituted. That is, the untwisted yarn 1a unwound from the twisted yarn package 1 is introduced into the hollow spindle 11 rotating via the flyer 12 and twisted, and further passes through the lower portion of the spindle 11 to pass through the rotor 1.
3 is guided to the snail wire 15 while forming the ballooning portion 1b, and twist is further imparted during this period.

In the winding guide section, the twisted yarn 1c that has passed through the snare wire 15 is fed to the traverse guide 17 via the feed roller 17B, and is regularly placed on the twisted yarn package 2 adjacent to the friction roller 16. Wind up.

[0005]

When the double twister performs twisting, the rotor 13 is driven by the drive belt 18
Since it is rotated at a high speed of 10,000 rpm or more, the air resistance becomes very large, and it is difficult to further increase the rotation. Further, the accompanying airflow F generated by the rotation of the rotor 13 adversely affects the ballooning portion 1b of the adjacent double twister, or in the case where the shield plate 20 is provided between the double twisters, its own thread is used. It was supposed to have a bad influence on the strip rotation.

It is an object of the present invention is therefore, high as such as the rotor
The air resistance is reduced in the textile machine structural components for quick rotating, while enabling higher-speed rotation, without causing an adverse effect on surrounding components operated such by the airflow created by the rotation or the like textile machine structural parts of the surface structure To provide.

[0007]

The present invention, which has achieved the above object, provides a surface structure of a textile machine structural component that rotates at high speed while receiving air resistance, and a plurality of surface structures are formed on the peripheral surface of the mechanical structural component. It is a surface structure of a textile machine structural component formed by forming a recess. As an example of the textile machine structural component, a double twister rotor for twisting yarn is shown. In the present invention,
The depressions may be formed in a matrix or randomly arranged.

[0008]

FUNCTION AND EXAMPLE FIG. 1 is an explanatory view showing a typical example of the present invention, showing an example of a double twister for spinning. The basic structure of the double twister is the same as that shown in FIG. 5, and the characteristic structure of the present invention is that the rotor 13 has a large number of surfaces.
The depression D is formed. That is, the rotor 13
2 is rotated at a high speed, a small air flow A ₁ is generated in each recess D by the air resistance as shown in FIG. 2, and this air flow A ₁ behaves so as to rotate together with the rotor 13.
As a result, the rotating airflow slides between itself and the stationary air as if through the sliding air layer C, and as a result, the air resistance of the rotor 13 is greatly reduced. As a result, even if the rotor 13 has a high speed of 10,000 revolutions per minute or more, the rotor 13 is rotated so as to float on the surrounding static air, and can be rotated at a higher speed.

Further, as described above, the rotor 13 rotates at a high speed so that the air layer C serves as a sliding surface, and the entrained air flow due to centrifugal force does not overflow to the outside of the air layer C so that the periphery of the rotor is reduced. The extra air flow does not flow out to the ballooning portion formed by the yarn, and the yarn can be smoothly rotated and fed to the winding guide portion.

The plane contour of the depression D may have an elliptical or polygonal contour as shown in FIGS. 3B and 3C, in addition to the circular contour shown in FIG. 3A. Further, the hollow cross-sectional shape in the depth direction may be a hemispherical shape, an inverted cone shape (an inverted cone shape, an inverted triangular pyramid shape, etc.), an inverted truncated cone shape, or a column shape (a cylindrical shape, a triangular prism shape, etc.). good. The array pattern of the depressions D is in the diagonal vertical direction as shown in FIGS. 4 (a) and 4 (b).
May be a so-called matrix-shaped arrangement that is aligned in the horizontal direction or the vertical direction and the horizontal direction , or may be a random arrangement as shown in FIG.
Further, the plane contour and the depth of the depression may be a combination of several kinds having arbitrary sizes or depths. It is to be noted that the preferable plane area of one of the above-mentioned dents is 0.5 to 100 mm ² , and it is recommended that the total plane ratio of the dents is less than 90%, and the depth thereof is about 0.5 to 12 mm. desirable.

The textile machine structural component forming the depression is
It is not limited to the rotor of a double twister, spinning
It can be applied to arbitrary structural parts that rotate at high speed in a spinning machine .
You can

[0012]

EFFECTS OF THE INVENTION Since the present invention is constituted as described above, the air resistance of a textile machine component rotating at a high speed is reduced to enable a further high speed rotation , and the air flow formed around the component is reduced. Reduce and prevent adverse effects on other components.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing a typical embodiment of the present invention.

FIG. 2 is an explanatory view showing the cross-sectional shape of the rotor shown in FIG. 1 and the principle of the present invention.

3 (a) to 3 (c) are explanatory views showing the contour of a depression.

FIG. 4A to FIG. 4C are explanatory views showing an example of an array pattern of depressions.

FIG. 5 is an explanatory view showing a conventional double twister.

[Explanation of symbols]

1 Untwisted yarn package 2 Twisted yarn package 13 Rotor D, D ₁ , D ₂ , D ₃ Recess

Claims (3)

[Claims] 1. A fiber that rotates at high speed while receiving air resistance, which is a surface structure of a mechanical structural part, the peripheral structure of the mechanical structural part.
A fiber characterized by having a plurality of indentations formed on its surface
Surface structure of textile machinery structural parts. 2. The surface structure of the textile machine structural component according to claim 1, wherein the textile machine structural component is a rotor of a double twister for twisting yarn. 3. The depressions are matrix-shaped or run- shaped.
The surface structure of the textile machine structural component according to claim 1 or 2, which is arranged in a dam .