JPH08226028A - Rotating ring for spinning - Google Patents

Abstract

PURPOSE: To provide the subject ring capable of more smoothly rotating and turning a rotating cylinder and a traveler by interposing slide contact rings in two upper and lower sites in a gap between a cylindrical holder and the rotating cylinder on the inside thereof. CONSTITUTION: This rotating ring for spinning is obtained by interposing slide contact rings 4 and 4 in two upper and lower sites in a gap between a cylindrical holder 1 and a rotating cylinder 2 freely fitted on the inside thereof and freely rotatably supporting the rotating cylinder. The traveler 3 and rotating cylinder are smoothly rotated and turned without causing deflecting rotation of the rotating cylinder in the form of a wooden pestle motion and deflecting motion of the traveler 3 and the rotating cylinder.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary cylinder in which a rotary cylinder is loosely fitted in a vertically oriented cylindrical holder, and a traveler 3 is loosely fitted to an upper end flange portion of the rotary cylinder. The present invention relates to a spinning rotary ring that can be rotated.

[0002]

2. Description of the Related Art An example of the above spinning ring is disclosed in Japanese Patent Laid-Open No. 3-8821. The spinning rotary ring 50A, a partial longitudinal section of which is shown in FIG. 3, is formed as a vertically oriented flat cylindrical shape as a whole. Reference numeral 51 is a cylindrical holder, and a rotary cylinder 52 that can be vertically divided into two is loosely fitted inside thereof. On the upper inner peripheral surface of the cylindrical holder 51, V
A shaped groove 51a is provided around the groove. A stopper ring-shaped traveler 53 is loosely fitted to a flange portion 52a formed at the upper end of the rotary cylinder 52. On the outer peripheral surface of the rotary cylinder 52, a V-shaped groove 52b symmetrical to the V-shaped groove 51a provided on the cylindrical holder 51 is provided at a position facing the V-shaped groove 51a. Then, the sliding contact ring 5 is inserted into the annular gap sandwiched between the V-shaped grooves 51a and 52b.
4A is interposed. The sliding contact ring 54A serves to support the rotary cylinder 52 and smoothly rotate it. A skirt-shaped brake shoe 55 made of an elastic material is fitted to the lower end of the rotary cylinder 52. 56 is a brake ring and 57 is a dust cover. Reference numeral 60 is a ring rail to which the spinning ring 50A is attached.
1 is moved up and down with a predetermined stroke along a spindle (not shown) on which 1 is mounted. 62 is a stop ring for mounting.

Next, the operation of the spinning ring 50A will be described. The yarn supplied from above the bobbin 61 is fixed to the bobbin 61 after the tip of the yarn is inserted into the traveler 53. When the spindle is rotated, the traveler 53 is swung along the flange 52a along with the swirling yarn, and guides winding on the bobbin 61 while twisting the yarn. In this state, a frictional engagement force acts between the traveler 53 and the rotary cylinder 52, so that the rotary cylinder 52 also rotates together. As the rotation speed of the rotary cylinder 52 increases, the hem portion of the brake shoe 55 attached to the lower end of the rotary cylinder 52 is lifted by centrifugal force as shown by the phantom line in FIG. 3, and the brake ring 56 is attached to the bottom surface of the cylindrical holder 51. Press on. As a result, the rotation speed of the rotary cylinder 52 is increased by the traveler 5.
A so-called overrun condition, which is equal to or higher than the turning speed of 3, is prevented, the yarn is always given an appropriate tension, and a high-quality spun yarn is tightly and evenly wound around the bobbin 61. Go.

FIG. 4 shows another spinning rotary ring 50B disclosed in Japanese Patent Publication No. 62-42055.
The main difference from the spinning ring 50A lies in the cross-sectional shape of the sliding contact ring 54B and how to assemble it. That is, in the sliding contact ring 54B, the inner peripheral side thereof is sandwiched between the divided portions of the rotary cylinder 52 which can be vertically divided, and the outer peripheral side formed on the curved surface
The cylindrical holder 51 is housed in a U-shaped groove 51b provided on the inner peripheral surface thereof. The action of the spinning ring 50B is the same except that the brake mechanisms 55 and 56 are not provided.
It is almost the same as the above. There is also a slide contact ring 54 using a ball bearing.

[0005]

In all of the conventional spinning rotary rings 50A, 50B, etc., the sliding contact ring 54 is
Only one is incorporated. Therefore, in particular, at the time of starting and stopping the rotation of the spindle, it is unavoidable that the rotary cylinder 52 is somewhat rotated in a wobbling and rotating manner. This shake motion of the rotary cylinder 52 is naturally transmitted to the traveler 53, and further amplifies the vibration of the traveling traveler 53 while causing some shake vibration. Further, the amount of heat generated from each sliding contact portion of the spinning ring for spinning also increases. Therefore, not only smooth and even spinning action is hindered but thread quality is deteriorated, but also damage to each of the traveler 53, the rotary cylinder 52, and the sliding contact ring 54 is accelerated, and the maintenance cost of the spinning machine is increased. Causes a problem of increasing the volume.
In addition, it becomes difficult to operate at high speed. Therefore, an object of the present invention is to provide a spinning rotary ring in which the rotary cylinder and the traveler can be rotated and swung more smoothly.

[0006]

In order to achieve the above object, a spinning ring for spinning according to the present invention has a vertical cylindrical holder 1 in which a rotary cylinder 2 is loosely fitted, and an upper end flange portion thereof is provided. In the case where the traveler 3 is loosely fitted, the sliding contact rings 4 and 4 are provided at two positions above and below the gap between the cylindrical holder 1 and the rotary cylinder 2.

[0007]

OPERATION Between the cylindrical holder 1 and the rotary cylinder 2 loosely fitted inside thereof, sliding contact rings 4 which play a role of rotatably supporting the rotary cylinder 2 are provided at two positions, upper and lower. . For that reason,
Unlike the conventional one in which only one sliding contact ring is assembled, the problem that the rotating cylinder 2 shakes and rotates in a powder wood motion-like state does not occur, and various inconveniences caused by such a rotating motion, It can be eliminated almost completely.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG. A spinning rotary ring A1 of this embodiment, a partial vertical cross section of which is shown in FIG. 1, has a rotary cylinder 2 loosely fitted inside a vertically arranged cylindrical holder 1, and an upper end of the rotary cylinder 2 A retaining ring-shaped traveler 3 is loosely fitted in the formed flange portion 2a. The rotary cylinder 2 is rotatably supported by the two sliding contact rings 4 and 4 assembled at two positions above and below the inner peripheral surface of the cylindrical holder 1.

On the inner peripheral surface of the cylindrical holder 1, there is integrally formed an annular projection 1a for positioning the two sliding contact rings 4 and 4 at predetermined intervals. On the other hand, on the inner peripheral surface of the rotary cylinder 2, a housing groove 2b for housing the two sliding contact rings 4 and 4 at a position facing the annular protrusion 1a at a predetermined interval.
Are laid around. A dustproof flange 2c is integrally provided around the shoulder of the outer peripheral surface of the rotary cylinder 2.

The material of the sliding contact ring 4 of this embodiment is selected from engineering plastics having excellent toughness and low friction coefficient, and its longitudinal section is formed in a rectangular shape. The two sliding contact rings 4 and 4 are formed by engaging the accommodation groove 2a of the rotary cylinder 2 and the annular projection 1a of the cylindrical holder 1 in the assembly process of the spinning ring A1 as illustrated. It is housed in each of the two upper and lower annular voids.

Next, the operation of the above configuration will be described. The usage of the spinning ring A1 is the same as the conventional one as shown in FIG. When the bobbin 61 mounted on the spindle starts to rotate at high speed, the rotary cylinder 2 is also forcedly rotated at a speed lower than the winding speed of the spinning as described above to assist the traveler 3 in smoothly turning.

Unlike the prior art shown in FIGS. 3 and 4, the rotary cylinder 2 is rotatably supported at two upper and lower positions on the outer peripheral surface by braking rings 4 and 4. Therefore, the traveler 3 loosely fitted to the flange portion 2a of the rotary cylinder 2 is
Even if the bobbin 61 is pulled toward the bobbin 61 by the tension applied to the thread, there is no room for causing a crushed wood-like movement (movement with a hula) unlike the prior art.

Therefore, the traveler 3 which originally causes some shaking vibration with the turning motion is transmitted by the slurred powdered wood motion of the rotary cylinder 2 and the vibration is further amplified. However, the problem is almost eliminated. Then, the fluctuation of the spinning tension caused by the shake vibration of the traveler 3 is suppressed to a minimum. In addition, turning of the traveler 3 and the rotary cylinder 2
The amount of frictional heat generated due to the rotational movement is also reduced.

As a result, a homogeneous and high-quality spinning yarn can be obtained.
The bobbin 61 can be wound evenly and tightly. Further, since the rotary cylinder 2 can be rotated more smoothly, higher speed operation becomes possible.

FIG. 2 shows a spinning ring A for spinning according to another embodiment.
2 is shown. The difference from the spinning ring A1 is
The annular protrusion 2d is provided on the rotary cylinder 2 side, and the accommodation groove 1b is provided on the cylindrical holder 1 side. Reference numeral 5 denotes a retainer ring which is fitted on the upper end of the cylindrical holder 1 and prevents the upper sliding contact ring 4 from coming off. Reference numeral 6 denotes a dustproof cover fitted over the upper part of the rotary cylinder 2.

According to the construction of this embodiment, the spinning rotary ring A2 can be assembled without the rotary cylinder 2 having a divided structure. The action of the spinning ring A2 is similar to that of the above-described embodiment.

In each of the above embodiments, the object of the present invention can be achieved even if the design of the detailed structure is appropriately changed. For example, the cross-sectional shape of the sliding contact ring 4 is not limited to the illustrated shape, and may be circular, elliptical, rhombic, or the like. Further, the assembling method, the assembling location, etc. of each sliding contact ring 4 may be appropriately selected as required.

[0018]

As is apparent from the above description, the spinning rotary ring according to the present invention, in which the sliding contact rings for rotatably supporting the rotary cylinder are assembled at two upper and lower positions, has one sliding contact ring. Compared with the conventional ones, various excellent effects as listed below are exhibited. (A) Mainly, when the rotation of the spindle is started and stopped, the problem that the rotary cylinder is likely to cause a grinded wood-like motion is solved, and the rotary cylinder can be smoothly rotated at a higher speed, which enables higher speed operation. become. (B) Since the rotary cylinder rotates smoothly and the traveler and the rotary cylinder are less likely to cause a shake motion, a higher-quality homogeneous spinning yarn can be obtained. (C) Further, friction heat generation and wear of the traveler, the sliding contact ring, and the rotary cylinder are reduced, and the maintenance and management cost of the spinning machine can be significantly reduced. (D) If the sliding contact rings are dispersed in two places, the thickness of each sliding contact ring can be made thinner, and the cost of the expensive material for the sliding contact ring can be saved accordingly. (E) Further, since the total sliding contact area can be reduced, the rotary cylinder rotates more smoothly. (F) The sliding contact pressure applied to each sliding contact ring is reduced,
Since the excessive shearing force is not exerted, the durability of the sliding contact ring is noticeably increased.

[Brief description of drawings]

FIG. 1 is a partial vertical sectional view showing an embodiment of the present invention.

FIG. 2 is a partial vertical sectional view showing another embodiment of the present invention.

FIG. 3 is an explanatory diagram of a conventional example.

FIG. 4 is an explanatory diagram of another conventional example.

[Explanation of symbols]

 A1, A2 Spinning rotary ring 1 Cylindrical holder 1a, 2d Annular projection 2 Rotating cylinder 2a Flange 1b, 2b Storage groove 2c Dustproof flange 3 Traveler 4 Sliding contact ring 5 Retainer ring 6 Dustproof cover 50A, 50B Spinning Rotating ring 51 Cylindrical holder 52 Rotating cylinder 53 Traveler 54A, 54B Sliding contact ring 60 Ring rail 61 Bobbin 62 Stop ring

Claims (1)

[Claims] 1. A vertical holder 1 in which a rotary cylinder 2 is loosely fitted, and a traveler 3 is loosely fitted in an upper end flange portion thereof, wherein the cylindrical holder 1 and the rotary cylinder 2 are connected to each other. A rotating ring for spinning characterized in that sliding contact rings 4 and 4 are provided at two positions above and below the gap between the two.