JPH0627662Y2 - Ring for spinning - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a ring used in a ring spinning machine, and more particularly to a cushion mechanism for absorbing and absorbing minute traveling vibrations of a traveler due to vibrations of a machine stand and changes in spinning tension. The present invention relates to a spinning ring.

[Prior Art and Its Problems] In a conventional spinning ring, a ring main body with which a traveler engages in sliding contact and a holder portion for fitting and mounting in a ring fitting hole of a machine stand such as a ring rail are integrally formed. (For example, Japanese Utility Model Publication No. 57-13346). In the ring spinning machine, the vibration of the machine base due to the high-speed rotation of the spindle and the fluctuation of the spinning tension cause slight vibrations and impacts on the traveler and the yarn. Since it is not possible to absorb the impact, thread breakage and fluff are generated, and the life of the traveler and the ring is shortened.

In order to solve the above-mentioned problems, the inventor of the present invention constructs the ring body and the holder part separately, and provides a ring-shaped support ring made of a soft elastic material between them, thereby preventing vibration and vibration. A spinning ring having a shock absorbing effect has been previously proposed as Japanese Patent Application No. 60-183730.

This spinning ring has a cushioning effect in the vertical and diametrical directions of the ring, and has the effect of absorbing the vibration of the machine base and the traveler and the impact applied by the spinning.

It is an object of the present invention to further improve the spinning ring described above and to provide a spinning ring that absorbs vibrations in the rotational direction (tangential direction) of the ring and exhibits a further excellent cushioning effect.

[Means for Solving the Problems]

In order to solve the above-mentioned problems, the present invention provides a ring main body with which a traveler engages in sliding contact and a holder part for fitting and mounting in a ring fitting hole of a machine stand, which are separate from each other. A sufficient gap is provided between the ring body and the holder portion so that they do not come into direct contact with each other, and the ring body is an elastic body provided between the ring body and the holder portion. The holder is provided with a plurality of engaging grooves in the circumferential direction, and the ring body is made of an elastic body having an engaging protrusion protruding outward in the radial direction. An annular cushioning engagement member is provided, and the engagement projection is fitted in the engagement groove and engaged with each other in the rotational direction.

Further, the engagement projection has a weak elastic engagement projection having a small elastic force and a strong elastic engagement projection having a large elastic force, and the weak elastic engagement projection is provided in the holder before the strong elastic engagement projection. It is configured to engage with the section.

Further, the support ring is provided with light elastic pressure in a groove having an arcuate cross section having a radius larger than the radius of the support ring formed on the outer peripheral surface of the ring body and the inner peripheral surface of the holder portion, respectively. Is configured to be.

[Action]

The ring body and the holder are separate and independent from each other.When rotational torque is applied to the ring body, the engaging protrusion engages with the holder in the engaging groove, and the engaging protrusion bends due to its elastic force. When the rotational torque disappears or decreases, the engaging protrusions are restored by the elastic force, which absorbs the vibration or impact in the rotational direction.

〔Example〕

 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

In FIG. 1, a spinning ring 1 has a ring body 3 having a ring flange 3a with which a traveler 2 engages and slides.
And a holder portion 5 for fitting and mounting in the ring fitting hole 4a of the machine base 4 are separable separate bodies, and the ring body 3 and the holder portion 5 are in direct contact with each other. Not enough gap is provided.

The ring main body 3 is obtained by elastically press-fitting a buffer engagement member 7 integrally formed with a reinforcing metal ring 8 made of an elastic body such as synthetic rubber into the flange portion main body 6 having the ring flange 3a. ing. In other words, the cushioning engagement member 7 is pinched and integrated with the flange portion main body 6 by the metal ring 8 to prevent the cushioning engagement member 7 from coming off the flange portion main body 6.

The outer peripheral surface of the flange portion body 6 and the inner peripheral surface of the holder portion 5 are respectively provided with concave grooves 10 and 11 having an arcuate cross section, and between the concave grooves 10 and 11, a hollow circular cross section is provided. There is a ring-shaped support ring 9 made of an elastic material such as synthetic rubber.
However, it is attached lightly and oppressively. The radius of curvature of each of the grooves 10 and 11 is larger than the radius of the support ring 9, and the dimension between the grooves 10 and 11 is slightly smaller than the cross-sectional diameter of the support ring 9 in the free state. They are engaged with each other while striking each other with a slight elastic force in the radial direction on the circumference.

Therefore, the ring main body 3 which has received an impact due to the upward lifting force applied to the ring flange 3a applies narrow elastic pressures e and f to the support ring 9 by the concave grooves 10 and 11, and
Due to the difference in radius between the concave grooves 10 and 11, the hoisting momentarily moves slightly in response to the upward vector, buffers the vertical shock, and returns to the normal position by the internal and external elastic pressure of the support ring 9.

Further, between the upper inner end surface 5a of the holder portion 5 and the corner portion of the flange portion main body 6, a ring-shaped cushion seat ring 12 having a hollow circular cross section and made of an elastic body such as synthetic rubber is provided. With the cushion seat ring 12 and the support ring 9 described above, the ring body 3 is stably supported concentrically and horizontally with respect to the holder portion 5, and the miso-moving movement is prevented and the ring body is Vibrations and impacts in the vertical and diametrical directions applied to 3 are absorbed.

FIG. 3 shows a state in which the ring main body 3 is lifted upward by the lifting force of the spinning. The hoisting force moves in the circumferential direction due to the rotation of the traveler 2, which causes vibration in the vertical direction, but this vibration is effectively absorbed by the elastic force of the support ring 9 and the cushion seat ring 12.

Referring to FIG. 2, the lower end surface of the holder portion 5 is provided with engaging grooves 13 and 14 at equal positions in the circumferential direction, and the outer periphery of the buffer engaging member 7 is radially outward. To the engaging groove 13,
Engagement protrusions 15 and 16 that are fitted into 14 are provided. One of the engaging protrusions 15 is formed to have a smaller width in the circumferential direction than the other engaging protrusion 16, and therefore has a weak elastic force and can be bent with a small force. Further, the engaging groove 13 is inclined with respect to the radial direction, and the engaging protrusion 15 fitted into this engaging groove 13 has the engaging groove 13
Of the ring body 3 elastically bends until it comes into close contact along the inclined side wall surface of the engaging groove 13 by the slight rotational torque of the ring body 3, and when the rotational torque decreases or disappears, To restore by. by this,
Absorbs minute torque fluctuations, vibrations, or shocks in the direction of rotation.

The other engaging groove 14 has a wide width, and the engaging protrusion 16 to be fitted into the engaging groove 14 is provided.
Does not come into contact with each other in a free state, and the engaging projection 15 is bent until it comes into close contact with the inclined side wall surface as described above.
16 abuts against the side wall surface of the engaging groove 14 and bends, whereby
Engagement protrusion 16 absorbs a large impact that cannot be absorbed by engagement protrusion 15.
Absorb by. That is, the two types of engagement projections 15 and 16 have a two-stage impact absorbing action in the rotation direction.

The holder portion 5 is fixed to the machine base 4 by a retaining ring 18 elastically mounted between the annular groove 17 provided in the holder portion 5 and the lower surface of the machine base 4. It is also noted that the use of conductive rubber or the like for the support ring 9 or the cushion seat ring 12 prevents static electricity generated by friction between the traveler 2 and the spun yarn from accumulating and remaining on the ring body 3. .

FIG. 4 shows a spinning ring 21 according to another embodiment. In this spinning ring 21, instead of the support ring 9, a support ring portion 23 formed integrally with the buffer engagement member 22 is provided, and this support ring 23 is provided in the recessed groove provided in the holder portion 5. It is lightly and elastically fitted into 11.

5 to 9 show a spinning ring 31 according to still another embodiment.

In these drawings, in the spinning ring 31, a ring-shaped cushioning engagement ring 32 made of an elastic body is mounted in a fitting groove 3b provided on the outer peripheral surface of the ring body 3 made of a single body. The buffer engagement seat ring 32 has an upper surface formed in an arc shape,
The contact a is in contact with the cover 37 fitted in the stepped portion 3c of the ring body 3, and a large number of concentric circumferential grooves 38 are provided on the lower surface of the cover 37 to form wavy projections 39. It is in contact with the upper surface of the portion 5. As a result, the ring body 3 is elastically supported in the vertical direction (axial direction) and in the diametrical direction by the support ring 9a having a circular cross section.

FIG. 6 shows a state in which the ring main body 3 is lifted upward by the hoisting force of the spinning, and the support ring 9a receives the compressive forces Pa and Pb from the diagonally lower inner side and the diagonally upper outer side, and the elasticity of the support ring 9 and Due to the concave groove 10a formed on the outer peripheral surface of the ring body 3 and the concave groove 11a formed on the inner peripheral surface of the holder portion 5 which is opposed to the concave groove 10a and the gap due to the radius difference between the support ring 9, the ring main body 3 moves up and down Moves slightly in the direction to cushion the upper shock.

Further, the buffer engagement seat ring 32 is formed with engagement protrusions 35 and 36 having the same action as the engagement protrusions 15 and 16 at equal positions in the circumferential direction, and the upper end surface of the holder portion 5 is formed. It is fitted in engaging grooves 33, 34 similar to the engaging grooves 13, 14 provided in the above. The engaging projections 15 and 16 have lower end portions projecting downward more than other portions (that is, the portions of the wavy projections 39), and the engaging groove 3
Although not in contact with the bottom surfaces of the rings 3 and 34, they are brought into contact with and engage with the side wall surfaces of the engagement grooves 33 and 34 by the rotation of the ring body 3.

8 and 9 show the engagement state between the engagement grooves 33 and 34 and the engagement protrusions 35 and 36. In the free state in which the rotational torque is not applied to the ring body 3, as shown in FIG. 8, the engagement protrusion 35 slightly contacts the end of the engagement groove 33 and does not contact the entire surface. When the rotation torque is applied, the engagement projection 35 elastically bends along the inclined side wall surface of the engagement groove 33 as shown in FIG. 9, and the engagement projection 35 bends to the limit, thereby resisting the ring rotation torque. When you can no longer wear
36 contacts the side wall surface of the engaging groove 34. The engagement state and the action due to the engagement are the same as those of the engagement grooves 13 and 14 and the engagement projections described above.
Same as 15 and 16.

According to the spinning rings 1, 21, and 31 described above, the ring body 3 is concentrically and horizontally stable with the holder portion 5 by the support rings 9 and 9a, the support ring portion 23, the cushion seat ring 12, and the wavy protrusion 39. And the vibration and shock in the vertical and diametrical directions are effectively absorbed. Further, the engagement grooves 13, 14, 33, 34 and the engagement protrusions 15, 16, 35, 36.
Thus, vibration and impact in the rotating direction are effectively absorbed. Therefore, fluctuations in the vertical tension of the spinning applied to the ring body 3 and vibrations due to the chattering of the traveler 2,
Or while absorbing the shock due to the misalignment movement,
A change in the winding angle of the bobbin for spinning and a change in the rotational torque such as an impact caused by the traveler 2 due to a change in the rotational speed are also absorbed in the rotational direction.

In the above-mentioned embodiment, as the support rings 9 and 9a, a hollow tube shape or a solid O-ring shape made of an elastic body such as synthetic rubber or synthetic resin is used, but instead of this, a coil spring is used. You may use what was formed in the ring shape. Engaging grooves 13, 14, 33, 34 and engaging protrusions 15, 16, 35, 36
The number, shape, and the like of the above can be various ones other than the above-mentioned embodiments.

[Effect of device]

According to the first aspect of the present invention, it is possible to absorb vibration and impact applied to the ring body in any of the vertical direction, the diametrical direction, and the rotating direction. Therefore, it is possible to absorb and mitigate the impact on the ring main body caused by the vibration of the traveler, such as chattering, the vibration of the spindle and the tube yarn, and the vibration of the machine stand caused by the fluctuation of the spinning tension.

According to the second aspect of the present invention, in addition to the above-mentioned effect, the two types of engaging projections have a two-stage shock absorbing action in the rotational direction, and the shock can be more effectively absorbed.

According to the invention of claim 3, the ring body slightly moves in the vertical direction due to the gap due to the radius difference between the concave groove and the support ring, and the shock is effectively absorbed.

[Brief description of drawings]

The drawings show an embodiment of the present invention. Fig. 1 is a longitudinal sectional view of a spinning ring, Fig. 2 is a bottom view of the spinning ring of Fig. 1, and Fig. 3 is a schematic view of the spinning ring of Fig. 1. FIG. 4 is a longitudinal sectional view of a spinning ring of another embodiment, FIG. 5 is a longitudinal sectional view of a spinning ring of yet another embodiment, and FIG. 6 is a spinning ring of FIG. Figure of the support ring part of the ring, Figure 7 is the fifth
FIG. 8 is a perspective view of the spinning ring shown in FIG. 8, and FIGS. 8 and 9 are sectional plan views showing the state of the buffer engagement seat ring 32 of the spinning ring shown in FIG. 1, 21, 31 …… Spinning ring, 2 …… Traveler, 3…
… Ring body, 5… Holder part, 6… Flange part body, 7, 22… Buffer engagement member, 9, 9a… Support ring,
10,10a, 11,11a …… Concave groove, 12 …… Cushion seat ring, 1
3, 14, 33, 34 ... Engaging groove, 15, 35 ... Engaging protrusion (weak elastic engaging protrusion), 16, 36 ... Engaging protrusion (strong elastic engaging protrusion), 23 ... Support ring Part (support ring), 32 ... Buffer engagement seat ring (buffer engagement member).

Claims (3)

[Scope of utility model registration request] 1. A ring main body with which a traveler engages in sliding contact,
The holder part to be fitted into the ring fitting hole of the machine base and mounted is a separate body which can separate these from each other, and the ring body and the holder part are in direct contact with each other. The ring body is supported by a ring-shaped support ring made of an elastic body provided between the holder and the holder, and the holder is provided with a plurality of circumferentially-engaged members. A ring-shaped cushioning engagement member made of an elastic body having an engagement projection protruding outward in the radial direction is provided on the ring body, and the engagement projection is fitted into the engagement groove. A spinning ring characterized by being engaged with each other in a rotating direction. 2. The engagement projection has a weak elastic engagement projection having a small elastic force and a strong elastic engagement projection having a large elastic force, and the weak elastic engagement projection is more than the strong elastic engagement projection. The spinning ring according to claim 1, wherein the spinning ring is first engaged with the holder portion. 3. The support ring is lightly pressed into a groove having an arc-shaped cross section and having a radius larger than the radius of the support ring formed on the outer peripheral surface of the ring body and the inner peripheral surface of the holder portion, respectively. The spinning ring according to claim 1 or 2, wherein the spinning ring is provided with.