JPS6120049Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a rotating ring for a spinning machine, and is aimed at stabilizing the rotation of a rotating part of the rotating ring.

Conventionally, in order to speed up the rotation of the spindle of a spinning machine, there have been rotating rings that have been made rotatable by holding the ring around it with a bearing, or by installing a sliding body between the holder and the ring. be. However, the fixed portions of the rotating ring are directly fitted and fixed to the ring rail.

Normally, as the spindle rotates at several thousand to tens of thousands of rpm, the traveler suspended on the ring flange slides at a speed several percent lower than that, and the sliding of the traveler drags the rotating part of the rotating ring and fixes it. It is rotating with respect to the part. With respect to the rotation of the rotating part, the centrifugal force due to the rotation of the traveler is transmitted to the fixed part via the sliding part as rotational vibration that changes over several thousand cycles to tens of thousands of cycles.

Furthermore, fluctuations in the frictional state between the traveler and the ring flange, fluctuations in spinning force, etc. are added as complex vibration loads.

For this reason, when the fixed part of the rotating ring is fixed directly to the ring rail as described above,
Excessive bearing reaction force is irregularly generated along with vibration on the sliding surface, causing the rotation of the rotating part to become unstable, sometimes pulsating, or stopping, and in severe cases, causing the traveler to stop running. It was rotating in the opposite direction.

As described above, when the rotation of the rotating part of the rotating ring becomes unstable, yarn breakage occurs frequently, yarn splicing becomes difficult, and the operability is greatly reduced. In addition, the unstable rotational state also makes the traveling state and flexibility of the traveler unstable, and causes deterioration in yarn quality such as increased yarn fuzz, decreased yarn strength, and increased yarn unevenness. Furthermore, the generation of excessive bearing reaction force causes abnormal wear of the sliding parts and significantly shortens the life of the rotating ring.

The present invention has been made to eliminate the above-mentioned drawbacks, and provides a rotating ring that absorbs vibrations of the rotating portion of the rotating ring and provides stable rotation.

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a cross-sectional view showing one embodiment of the rotating ring of the present invention, in which 1 is a rotating ring, a rotating part 3 having a ring flange 2 at the top, a fixed part 5 having a collar part 4, and a rotating part 3. It is composed of a retaining ring 6 to prevent it from popping out. The rotating part 3 and retaining ring 6 are made of special steel, and the fixed part 5 is made of tetrafluoroethylene resin. In addition, the rotating part 3 and the fixed part 5
are loosely fitted with a required gap.

On the body outer peripheral surface 8 of the fixed part 5 of the rotating ring 1,
Vibration absorbing members 10 are provided in close contact with the lower surface 9 of the collar portion 4 placed on the upper surface of the ring rail 7 and the outer circumferential surface 8 of the body portion fitted into the ring fitting hole of the ring rail 7, respectively.

The vibration absorbing member 10 has a shore hardness of 50° to 70.
It is made of synthetic rubber such as urethane, neoprene, chloroprene, butadiene or silicone, natural rubber or synthetic rubber foam, and has a substantially U-shaped cross section. The vibration absorbing member 10 is either an annular body as shown in FIG. 2A, or a straight body as shown in FIG.
is 1 to 2 m/m, the width W of the U-shaped groove is approximately equal to the thickness of the ring rail 7 (for example, 3.2 mm), and the depth H of the groove is approximately 1.5 mm to 3 mm.

The vibration absorbing member 10 may simply be fitted onto the body outer circumferential surface 8 of the fixed part 5, but if necessary, it may be bonded to at least one of the body outer circumferential surface 8 and the lower collar surface 9, and the fixed part 5 It may be attached to.

Furthermore, in FIG. 1, reference numeral 11 denotes a set spring, which is used when attaching the rotating ring 1 having the above configuration to the ring rail 7, and has a wire diameter of 0.2 to 2.
0.5mm phosphor bronze wire or piano wire with an outer diameter of 1.5
mm to 3 mm〓 to form a tight coil spring, and its both ends are connected to each other to form a ring-shaped spring. It is fixed to the rail 7.

The rotating ring 1 is connected to the vibration absorbing member 10 as described above.
By attaching it to the ring rail 7 via the vibration absorbing member 10, the vibration transmitted to the fixed part 5 via the sliding parts 12 and 13 as the rotating part 3 rotates is absorbed by the vibration absorbing member 10. The bearing reaction force at each sliding portion is stable and does not become excessive. Therefore, the rotating part rotates extremely smoothly, and the rotation is changed gently only by fluctuations in the spinning force, and stable rotation is maintained. If the rotation of the rotating part is stable, fluctuations in the spinning force will be absorbed by the rotation of the rotating part and will become smaller, resulting in a significant reduction in yarn breakage, easier yarn splicing, and greater operability. improves.

Furthermore, if the rotation of the rotating part is stabilized, the traveling posture of the traveler suspended on the ring flange 2 is also stabilized, and yarn fuzz is greatly reduced and yarn quality is also greatly improved, with yarn strength increasing.

By stabilizing the rotational state, the bearing reaction force of the sliding part is stabilized, abnormal wear of the sliding part can be prevented, and the spindle rotation can be greatly increased.

As described above, the rotating ring for a spinning machine according to the present invention can stabilize the rotation of the rotating ring, thereby stabilizing the traveling posture of the traveler and reducing yarn breakage, as well as reducing yarn fuzz and increasing yarn strength. This has the effect of improving yarn quality by increasing the amount of yarn.

Furthermore, since abnormal wear of the sliding portion of the rotating ring can be prevented, the life of the rotating ring can be significantly extended and the spinning speed can be increased, providing significant practical effects.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing one embodiment of a rotating ring for a spinning machine according to the present invention, and Figs. be. 1...Rotating ring, 2...Ring flange, 3
...Rotating part, 4...Flame part, 5...Fixed part, 6...
Retaining ring, 7...Ring rail, 8...Body outer circumferential surface, 9...Brim lower surface, 10...Vibration absorbing member, 1
1... Set spring, 12, 13... Sliding part.

Claims (1)

[Scope of utility model registration request] A rotating ring composed of a fixed part fixed to a ring rail and a rotating part having a ring flange for suspending a traveler, which has a groove on the outer periphery to fit with the ring rail and is formed in a U-shape in cross section. A rotating ring for a spinning machine, comprising vibration absorbing members disposed in close contact with the lower surface of the collar and the outer circumferential surface of the body of the fixed portion, respectively.