JPS6242055B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a spinning ring that prevents dust from entering and provides extremely smooth rotation.

Traditionally, in order to increase the speed of spinning machine spindles,
Rotating rings have been considered in which the circumference of the ring is held by a bearing, or the ring is directly driven by a belt or a sliding wheel. However, in all of the above rings, the friction between the ring and the traveler is reduced compared to the fixed ring.
The disadvantage is that the friction between the traveler and the ring is large at the beginning of winding, full winding, or splicing, which causes thread breakage, which limits the number of revolutions of the spindle, making it impossible to improve productivity beyond a certain limit. Ta.

The present invention eliminates the above-mentioned drawbacks, and embodiments thereof will be described below with reference to the drawings.

The drawing shows a rotating ring according to the present invention, and a ring rotating body 1 is composed of an upper rotating body 3 having a ring flange 2 at the top, and a lower rotating body 4 press-fitted into the upper rotating body 3. A flange 6 having a plurality of grooves 5 or blades provided at equal intervals on the outer periphery is integrally formed on the upper outer periphery of the upper rotating body 3, and a stepped portion is formed on the outer periphery of the central part to form a substantially inverted L-shaped cross section. state,
One or preferably a plurality of recesses 7 for removing the lower rotating body are formed at the lower end at equal intervals. Further, the lower rotating body 4 has a substantially L-shaped cross section, and a plurality of oblique grooves 8 or oblique blades are formed at equal intervals on its lower end surface.
Note that when the lower rotating body 4 is press-fitted to the upper rotating body 3, the inner step of the lower rotating body 4 is connected to the upper rotating body 3.
A recess is formed along the entire circumference between the top of the lower rotating body 4 and the outer circumferential step of the upper rotating body 3.

A sliding member made of an alloy or tetrafluoroethylene resin having wear resistance and a low coefficient of friction, the outer peripheral surface of which is formed in a semicircular arc shape with a required curvature in a recess formed on the outer periphery of the ring rotating body 1. Fit the collar 9.
Note that this fitting collar 9 is normally press-fitted into the upper rotating body 3 before the lower rotating body 4 is fitted, and then the lower rotating body 4 is press-fitted therein. In addition, glass fiber is added to the tetrafluoroethylene resin to improve wear resistance and lower the coefficient of friction.
It is more effective to add 10 to 20% of _MoS2 and 3 to 7% of MoS2, or to add 10 to 20% of graphite.

As described above, the ring rotating body 1 having the semicircular arc shaped sliding flange 9 on the outer periphery is arranged in a semicircular arc shape having a gap of 3/100 to 20/100 with respect to the circular arc surface of the sliding flange 9. an upper ring body 11 in which a concave groove 10 is formed;
It is fitted and supported by a holder 13 consisting of a lower ring body 12. The upper ring body 11 has the above-mentioned groove 10 on the inner peripheral surface.
The lower ring body 12 has a semicircular arc surface forming a groove 10 together with the semicircular arc surface on the upper part of the inner circumferential surface, and a holder 13 on the outer circumferential surface. The ring rail (not shown)
A spring-fitting groove 14 is provided for use when fixing to a spring. In addition, the ring rotating body 1
The gap between the holder 13 and the sliding flange is set to be 5/100 to 30/100, which is larger than the gap between the sliding flange.

Further, when the ring rotating body 1 is fitted into the holder 13, the diagonal groove 8 provided on the lower end surface of the ring rotating body 1 is configured to be located on the same level as or below the lower end surface of the holder 13. .

Since the rotating ring for spinning of the present invention is configured as described above, the holder and the sliding collar are in line contact, and it has excellent flexibility and can constantly follow fluctuations in lift that occur when the traveler slides. Since the ring rotates, fluctuations in thread tension are reduced and thread breakage is extremely reduced. In addition, by reducing fluctuations in yarn tension, extremely smooth ring rotation can be obtained, making it possible to increase the rotation speed of the spindle. Furthermore, by providing grooves (or blades) and diagonal grooves (or diagonal blades) on the outer periphery of the collar of the ring rotating body and on the lower end surface of the ring, the grooves and diagonal grooves allow the ring to rotate in the radial direction. A blowout airflow is generated, and this airflow has extremely great effects, such as being able to prevent dust from entering.

[Brief explanation of the drawing]

The drawings show one embodiment of the spinning ring of the present invention, in which FIG. 1 is a sectional view, FIG. 2A is a plan view, and FIG.
Figure b is a bottom view. 1...Ring rotating body, 2...Ring flange, 3...
Upper rotating body, 4... Lower rotating body, 5... Groove, 6... Tsuba,
7... Concave portion, 8... Diagonal groove, 9... Sliding collar, 10... Concave groove,
11... Upper ring body, 12... Lower ring body, 13... Holder.

Claims (1)

[Claims] 1. The ring rotating body is composed of an upper rotating body having a ring flange and a lower rotating body, and a flange with a plurality of grooves or blades is formed on the outer periphery of the upper rotating body, and the lower rotating body A plurality of oblique grooves or oblique blades are formed on the lower end surface of the ring rotating body, and a semicircular arc-shaped sliding flange having a required curvature is provided on the outer periphery of the central portion of the ring rotating body, and the semicircular arc-shaped sliding flange is moved upwardly and downwardly. A rotating ring for spinning, characterized in that it is fitted and supported with a minute gap in a semi-circular groove formed on the inner peripheral surface of a holder consisting of an annular body.