JP2000327220A - Traverse motion device for filament - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a traverse motion device without lowering of filament quality and without damage of a guide due to abrasion by sliding at a high speed at the time of high-speed reciprocation and impact of returning of the guide. SOLUTION: A rotor 11 is supported free to rotate around a first rotation axis center A on a frame 7, a shaft 13 is arranged free to rotate around a second rotation axis center B positioned at a distance of a radius R from the first rotation axis center A on the rotor, and a filament guide 28 is arranged on a third rotation axis center C positioned at a radius (r) from the second rotation axis center B. A fixed gear 8 is coaxially fixed and set with the first rotation axis center A, and a movable gear 18 is integrally set coaxially with the rotation axis center B. This movable gear 18 is rotated reversely with the rotor, the fixed gear 8 and the movable gear 18 are connected to each other so that their rotating ratio becomes 1:2, the filament guide 28 is made free to rotate around the third rotation axis center C, and the rotor 11 arranged on the first rotation axis center A is connected to a driving source through variable speed ratio gears 30a, 30b.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a traverse device for a winding machine for continuously forming a winding package for a yarn. In particular, the present invention relates to a traversing device for obtaining a good winding form of a yarn package.

[0002]

2. Description of the Related Art Japanese Patent Publication No. 3-72544 discloses a method of traversing a yarn by transferring the yarn from one guide to the other guide at the traverse end by vanes rotating in opposite directions. I have.

Further, Japanese Patent Application Laid-Open No. Hei 6-321426 discloses that an endless groove is formed, and the yarn is traversed by a guide fixed to a slider engaged with the groove.

In the technique described in Japanese Patent Publication No. 3-72544, after releasing a yarn from one guide, a plurality of single yarns are transferred to transfer the yarn to the other guide. There has been a problem that the yarn is broken (the single yarn is dispersed), the yarn is handled between the two guides, or the yarn is rubbed by the guide rail, and the yarn quality is poor.

On the other hand, in the technique described in Japanese Patent Application Laid-Open No. Hei 6-321426, the yarn is traversed while being traversed.
Since the guide is always regulated, the problem of poor yarn quality as in the technique described in Japanese Patent Publication No. 3-72544 described above did not occur, but since the slider reciprocated at high speed, it was damaged by impact. And the life is short.

In Japanese Patent Application Laid-Open No. 1-220679, a gear is fixedly provided, and a rotating plate is disposed rotatably around the axis of the fixed gear. A gear is rotatably supported at a position on the rotating plate at a distance of 1/4, and the fixed gear and the gear have a gear ratio of 2: 1 and mesh with each other via an idle gear. An arm is fixed to the gear, and the arm has a rotation fulcrum at a position substantially equal to a quarter of the traverse stroke from the rotation center of the gear, and the arm has a rotation fulcrum. A guide arm is supported, and the guide arm has a sliding fulcrum at a small distance from the rotating fulcrum. The sliding fulcrum engages with the groove cam and has a rotating fulcrum and a sliding fulcrum. Through a holder that extends across the straight line Traversing apparatus the yarn guide, characterized in that it is attached is disclosed.

In the technology disclosed in Japanese Patent Application Laid-Open No. 1-220679, a yarn guide is attached to a slider (in the publication, a pin), and the slider is reciprocated and swung. Or a large reversing force acts to wear the slider and the groove cam guiding the slider.

Further, as disclosed in Japanese Patent Laid-Open No. 220679/1990, when the yarn guide is directly connected, the direction of the yarn guide greatly varies depending on the direction of the arm 15, and the traverse speed is also uniform. Does not. Therefore, in Japanese Patent Application Laid-Open No. 1-220679, the guide arm is supported on a pivot point, and a position at a small distance from the pivot point is a sliding point, and the sliding point is engaged with a loose S-shaped groove cam. By attaching the yarn guide to the guide arm via a holder that intersects the straight line that connects the rotation fulcrum and the sliding fulcrum, the yarn guide can be substantially straightened without greatly changing the direction of the yarn guide. Guided to a constant velocity motion.

Further, in Japanese Patent Application Laid-Open No. 1-220679, a change in the direction of the yarn guide is prevented by pivotally connecting the arm 15 and the yarn guide and moving the yarn guide along a linear guide. As a measure to prevent the distance between the guide and the peripheral surface of the yarn package from increasing and the end of the yarn package from being raised at the folded position of the traverse, the sliding fulcrum should be located near the center of the rotating plate. It has been proposed to engage a grooved cam that is swingably disposed about the center of the thread and disperse the winding position of the yarn to prevent ear height.

[0010]

As described above, in the technique disclosed in Japanese Patent Application Laid-Open No. 1-220679, a yarn guide is attached to a slider, and the slider is reciprocated and oscillated. Therefore, there is a problem that the slider is damaged or a large reversing force acts to wear the slider and the groove cam that guides the slider.

Further, when the yarn guide is directly connected,
A complicated configuration is required to cope with the speed of the guide at the turn-back portion. If you do not take such considerations,
The accumulation of the thread in the folded portion is large, and the resulting package has an ear height phenomenon.

For this reason, in the above-mentioned conventional technology, it was difficult to obtain a traverse device which does not adversely affect the yarn quality at high speed and has no problem in the service life.

[0013]

The object of the present invention is to reduce the yarn quality by handling the yarn by transferring the yarn between two rotating guides as in the prior art, and to slide the guide while receiving a large frictional force at high speed when the guide reciprocates. An object of the present invention is to provide a traverse device for traversing a yarn while controlling the yarn by a combination of rotational motions without causing the guide to be broken due to abrasion or an impact caused by folding of the guide.

[0014]

According to the present invention, a first rotating member is rotatably supported around a first rotating shaft center A on a case of a traversing device. A second rotating member is rotatably disposed on the first rotating member around a second rotating shaft core B located at a distance of a radius R from the first rotating shaft core A, and the second rotating member is provided on the second rotating member. A yarn guide is disposed on a third rotation axis C located at a radius r from the second rotation axis B,
A fixed member is fixedly installed coaxially with the first rotation axis A,
A movable member is installed integrally with the second rotating member coaxially with the rotation axis B, and the movable member rotates in the reverse direction with respect to the first rotating member, and the movable member rotates between the fixed member and the movable member. In the yarn traversing device in which the fixed member and the movable member are connected so that the rotation ratio is 1: 2, the yarn guide is rotated around the third rotation axis C on the second rotation member. And a first rotating member disposed on the first rotating shaft core A is connected to a drive source via a non-constant speed ratio gear. The problems associated with the prior art are solved and the above objects are achieved.

Here, the above-mentioned unequal speed ratio gear means a pair of gears meshing with each other whose center-to-center distance is constant and whose angular velocity ratio changes during rotation. When a normal constant speed ratio gear is used, the yarn guide moves in a sine curve with respect to the time axis, and the moving speed near the folded portion at both ends of the traverse becomes slow. Yarn accumulation occurs. On the other hand, in the present invention, the speed of the folded portion is corrected so as to reduce the accumulation of the yarns at both ends of the traverse, and the yarn guide becomes substantially linear between the two ends of the traverse (almost constant speed). ).

The non-constant speed ratio gear is preferably a non-circular gear such as a gear having an elliptical pitch circle. In this case, the non-circular gear is rotatable around one of the focal points of the ellipse like a normal elliptical gear. Alternatively, it may be rotatable around a center between the two focal points. Further, when the speed change may be small, an involute eccentric gear may be used instead of the gear having the elliptical pitch circle.

In the present invention, a guide rail for regulating the direction of the yarn guide in the traversing direction may be provided in the axial direction of the traversing.

According to another aspect of the present invention, the yarn guide is fixed to a shaft rotatable around the third rotation axis C, as described in claim 5, and the yarn guide is fixed to the shaft. The yarn guide may be oriented in the traversing direction by connecting a member fixedly installed on the second rotating shaft core B on one rotating member so as to rotate in the opposite direction at a rotation ratio of 2: 1. .

According to still another aspect of the present invention, the yarn guide is fixed to a shaft rotatable around the third rotation shaft center C, as described in claim 6, and the yarn guide is fixed to the shaft. The yarn guide may be oriented in the traversing direction by connecting a member fixedly installed on the first rotation axis A so as to rotate in the same direction at a rotation ratio of 1: 1. In this case, as in claim 7, the thread guide is secured and the third
An axis rotatable about a rotation axis C and the first rotation axis A
It is preferable from the viewpoint of simplifying the structure that the member fixedly installed on the second rotation axis is connected via a shaft rotatable around the second rotation axis B.

In the present invention, the non-constant speed ratio gear is a gear having an elliptical pitch circle in order to prevent the ear height phenomenon from occurring in the obtained package. The ratio of the long radius to the short radius is 1.6 to
Particularly preferred is 2.2.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on illustrated embodiments. FIG. 1 is a front view of an embodiment of a yarn winding device incorporating a yarn traversing device according to the present invention. FIG.
Is a front view of an embodiment of the yarn traversing device according to the present invention,
3A is a cross-sectional view taken along the line IIIa-IIIa of FIG. 2, and FIG.
3 is a sectional view taken along line IIIb-IIIb, and FIG. 4 is a rear view showing the drive system of the present apparatus viewed in the direction of arrow IV in FIG.

In FIG. 1 showing a front view of an embodiment of a yarn winding device incorporating the present invention, a bobbin holder 2 is rotatably supported on a machine frame 1 of a winding machine. A bobbin 3 for winding the strip Y can be mounted.

A slide block (not shown) is provided on the machine casing 1.
The frame 4 and the traversing device 6 supported by a slide block in a cantilever manner project parallel to each other and perpendicular to the plane of FIG.

A contact roller 5 is rotatably supported by the frame 4, and the contact roller 5 is a package P wound around a bobbin 3 mounted on a bobbin holder 2.
At a predetermined contact pressure.

The yarn Y supplied from the upstream side of the winding machine is traversed by the yarn guide 28 of the traversing device 6 at a predetermined traverse angle in the direction perpendicular to the plane of FIG.
Wound on top.

Next, the traverse device 6 of the present invention is shown in FIGS.
It will be described according to. In FIG. 2, the case 7 of the traverse device 6 has its left end fastened to a slide block (not shown) by a bolt 7a. In this embodiment,
In the case 7, two rotors 11, which are the first rotating members of the present invention, are rotatably supported around shaft axes A (indicated by Al and Ar in FIG. 2) at predetermined intervals. ing. In the illustrated embodiment, the first rotating member is a disc-shaped rotor 11 because of easy manufacture and balance.
However, the first rotating member need not be a disk.

The rotor 11 has a predetermined radius R from the axis A.
The shaft 13 is supported so as to be rotatable about an axis B (indicated by B1 and Br in FIG. 2) located at a distance of. The shaft 13 is a part of the second rotating member of the present invention, and has a disk-shaped head as shown by a broken line in FIG. 2 and a circular shape as shown in FIG. The columnar shaft protrudes on the side opposite to the head (right side in FIG. 3A).

As shown in FIG. 3A, the rotor 11 is connected to the shaft 10 by a key 12, and is integrally fixed to the shaft 10 by a nut 12a. The shaft 10 includes a bearing 9a,
9b, it is supported by the case 7 so as to be rotatable around the axis A. In addition, 36a and 36b are retaining rings,
a, 9 b are positioned in the case 7.

As described above, the axis B is located at a distance of a radius R about the axis A on the rotor 11, and the shaft 13 is supported by the bearings 14a and 14b so as to be rotatable around the axis B. ing. The radius R is preferably set to be approximately 1/4 of the traversing stroke of the traversing device 6 (in the present embodiment, 1/1).
4), but is not necessarily limited to this value. In addition, 16 is a collar and 15 is a retaining ring.

An arm 21, which is a part of the second rotating member of the present invention, is fastened to the head of the shaft 13 by a pair of bolts 22. The shaft 13 and the arm 21 constitute a second rotating member of the present invention. Axis 1 on arm 22
The third position is located approximately at a radius r (in the present embodiment, set to 1/4 of the traversing stroke) from the center of 3 (axis B).
The shaft 26 is rotatable around the rotation axis C by the needle bearing 2.
3 supported. 24a and 24b are thrust washers, and 25 is a retaining ring.

A thread guide 28 is integrally fixed to the shaft 26 by a resin 27. A slit 28a is formed at the tip of the thread guide 28, and the thread Y is formed by the slit 28a.
Is regulated and traversed.

In FIG. 3A, a gear 8 is integrally fixed to the case 7 coaxially with the axis A. As shown in FIG. 3B, a shaft 39 is rotatably supported on one surface of the rotor 11 by bearings 42a and 42b.
An intermediate gear 40 is fixed to the right end of the vehicle. A gear 18 is fixed to a right end of the shaft 13 rotatable around the shaft core B by a key 17. The gear 8 and the gear 18 fixed to the shaft 13 mesh with each other via an intermediate gear 40, and make the rotation direction of the rotor 11 and the rotation direction of the arm 21 reverse. The gear ratio between the gear 18 and the gear 8 is 2: 1.

In the present invention, the rotor 11 (first rotating member) is rotatably provided around the axis (first rotating axis) A of the fixed gear 8 fixedly installed. The gear 18 is rotatably supported around the two rotation axis B, and the fixed gear 8 and the gear 18 mesh with each other via an idle gear 40 rotatably supported by the rotor 11.
Therefore, when the rotor 11 is rotated around the fixed gear 8 in, for example, a counterclockwise direction, the idle gear 40
, The gear 18 meshing with the idle gear rotates in a direction opposite to the idle gear 40, that is, in a clockwise direction opposite to the rotor 11.

Since the gear ratio between the fixed gear 8 and the gear 18 is 2: 1, the gear 18 rotates twice the rotation angle of the rotor 11.

Therefore, assuming that the distance from the rotation axis A of the rotor 11 to the rotation axis B of the gear 18 is l, the arm 15 is integrally attached to the gear 18 and the point of the distance l from the rotation center B of the gear 18 is obtained. Looking at the motion trajectory of C, △ ABC is an isosceles triangle, and since the outer angle of <ABC is twice as large as <BAC, the base AC is always on a constant straight line. That is, by selecting this straight line in the traversing direction, the point C
Moves on a straight line in the traverse direction, and its stroke is 4
l.

When the rotor 11 is rotated around the axis A at a constant angular velocity, the point C provided with the yarn guide 28 moves along a sine curve on the time axis. There is a problem that the traverse speed near the end is reduced, and the yarn is accumulated.

As a countermeasure against this, in the present invention, by changing the rotation angular velocity of the rotor 11 rotating around the axis A during rotation, a point C is substantially linearly formed between the folded ends of both ends of the traverse on the time axis. (Almost at a constant speed).

In the embodiment shown in FIG. 3A, a non-circular gear 30a is fixed to the right end of the shaft 10 for supporting and driving the rotor 11 by a key 29 in FIG.

Further, a shaft 32 is disposed in the case 7 in parallel with the axis of the shaft 10 (the first shaft center A).
a and 31b rotatably supported. A non-circular gear 30b meshing with the non-circular gear 30a and a timing pulley 33 are coaxially fastened to the shaft 32 by a key 36, and the non-circular gear 30b and the timing pulley 33 are integrally connected by bolts 34. .

Next, the drive system of the present apparatus will be described with reference to FIG. A motor 44 is fixed to the case 7 by bolts (not shown), and a timing pulley 4 is attached to a shaft 44a of the motor.
5 is fixed. On the other hand, as described above, the timing pulley 33 is fixed to each shaft 10 rotatably mounted around the first shaft cores Al and Ar of the case 7. A timing belt 38 is wound between the timing pulley 45 and the timing pulley 33. Reference numeral 46 denotes an idler pulley which ensures that the timing belt 38 is engaged with the timing pulley 45 and the timing pulley 33.

In this embodiment, the timing pulley 33 is driven by the timing belt 38 from the motor 44, the respective shafts 32 to which the timing pulley 33 is attached are rotated, and the non-circular gears 30b attached to the respective shafts 32 are rotated. Is rotated. Thus, the non-circular gear 30a meshing with the non-circular gear 30b is rotated. When the shaft 32 is rotated at a fixed speed, the non-circular gears 20a and 30b are engaged so that the yarn guide 28 approaches a constant speed motion. The non-circular gears 20a and 30b of the present embodiment are gears whose pitch circles are elliptical, and in each case (long diameter / short diameter)
Is set to 1.9 times. The non-circular gears 20a and 20b of the embodiment are attached such that the centers of the focal points of the two ellipses formed by the pitch circle coincide with the axes 10 and 32.

The inventor of the present invention changed the ratio of (long diameter / short diameter) of a gear having an elliptical pitch circle by 0.3 in the range of 1.3 to 2.2 to obtain a 75 denier polyester. The yarn was wound at a winding speed of 5,000 m / min into a package having a winding weight of 9 kg, and the height of the package ears and the size of the bulge were evaluated. As a result, the ratio of (long diameter / short diameter) of the gear having the elliptical pitch circle is within the allowable range of 1.6 to 2.2 (the height of the ear is 1 mm or less and the size of the bulge is 5 mm). The following package was obtained. If the ratio (long diameter / short diameter) of the gear having an elliptical pitch circle exceeds 2.5, the pulsation of rotation increases, and high-speed rotation is difficult.

Further, as shown in FIG. 2, guide rails 19 and 20 are attached to the case 7 by bolts 47 and 48, and a predetermined gap G extending in the traversing direction is formed between the guide rails 19 and 20. The resin portion 27 having the thread guide 28 fixed thereto is engaged with the gap G at a predetermined gap, and the thread guide 28 is regulated so as to be in a predetermined direction when the thread guide 28 reciprocates. I have. In addition, guide rail 1
Nos. 9 and 20 only prevent the rotation of the thread guide 28, and since a large force due to sliding does not act on the resin portion 27, wear hardly occurs. In the present embodiment, the two guide rails 19 and 20 restrict the resin portion 27 with the resin portion 27 interposed therebetween.

In the above embodiment, the rotational phases around the second rotational axes Bl and Br are set to the same phase. However, by rotating the plural rotational axes while rotating the rotational phases, the non-circular gear is rotated. The pulsation of rotation can be smoothed.

Next, another embodiment will be described with reference to FIG. The same components as those in the above-described embodiment are denoted by the same reference numerals, and description thereof will be omitted. In FIG. 3A, the gear 8 is integrally fixed to the case 7 coaxially with the axis A, and meshes with the gear 18 via the intermediate gear 40 supported on the rotor 11. In the embodiment shown in FIG. 6, timing pulleys 8 ', 18' are used instead of the gears 8, 18, and a timing belt 40 'is wound around the timing pulleys 8', 18 '. That is, the timing pulley 8 'is integrally fixed to the case 7 coaxially with the shaft core A, and meshes with the shaft 13 with the timing pulley 18'. The ratio of the number of teeth of the timing pulleys 8 'and 18' is 2: 1.

In both of the above embodiments, the guide rails 19 and 20 for regulating the direction of the yarn guide 28 in the traversing direction are provided in the axial direction of the traversing. However, the thread guide 28
May be configured to have a specific angular relationship with respect to the rotor (first rotating member) 11, and the direction of the yarn guide 28 may be regulated in the traversing direction. An embodiment of this aspect of the present invention will be described with reference to FIGS. In this description, the same components as those in the above-described embodiment are denoted by the same reference numerals, and the description thereof will be omitted.

In the embodiment shown in FIG. 6, the yarn guide 28 is fixed to a shaft rotatable around the third rotation axis C, and the second rotation of the shaft and the rotor (first rotation member) 11 is performed. Shaft core B
The yarn guide 28 is directed in the traversing direction by connecting the member fixedly installed to the rotative direction with a rotation ratio of 2: 1 so as to rotate in opposite directions.

That is, the timing pulley 111 is fixed to the position of the second rotation axis B of the rotor 11. Further, the shaft 26 is rotatably supported around the third rotation axis C, and the thread guide 28 is fixed to the shaft 26. This axis 26
, A timing belt 113 is wound around the timing pulley 112.

The ratio of the number of teeth between the timing pulley 111 and the timing pulley 112 is 1: 2,
The direction of the guide 28 is controlled by the timing pulleys 111 and 112 with respect to the rotation of, so that the guide 28 always moves in parallel. Note that 111a, 112
a is a flange for preventing the timing belt 113 from coming off.

FIG. 7 shows another embodiment of the present embodiment. In the embodiment of FIG. 7, the yarn guide 28 is
And a member fixedly installed on the first rotation axis A is connected to the shaft so as to rotate in the same direction at a rotation ratio of 1: 1. The guide is oriented in the traverse direction. In this case, the shaft on which the thread guide 28 is fixed and rotatable around the third rotation axis C and the member fixedly installed on the first rotation axis A rotate around the second rotation axis B. It is connected via possible shafts, making the structure compact.

In this embodiment, the shaft 10 attached to the rotor (first rotating member) 11 and rotatable around the first rotation axis A is hollow. Are supported by bearings 218 and 219. One end (the right end in FIG. 7) of the shaft 211 is fixed to the case 7 so as not to rotate. A timing pulley 212 is fixed to the other end of the shaft 211 (the left end in FIG. 7).

On a shaft 13 rotatably supported around a second rotation axis B on a rotor (first rotation member) 11, a timing pulley 21 is sandwiched between the rotor 11 and an arm 21.
3, 214 are attached. Here, the timing pulleys 213 and 214 are integrally formed, and are rotatably mounted on the shaft 13 rotatable around the second rotation axis B by bearings 220 and 221. Axis 2
6 is rotatably supported around a third rotation axis C,
A timing pulley 215 is fixed to 6.

The timing pulley 212 and the timing pulley 213 have a pulley ratio of 1: 1, and a timing belt 216 is wound between them. Similarly, the timing pulley 214 and the timing pulley 215 have a pulley ratio of 1: 1.
1, between which the timing belt 217 is wound. With respect to the rotation of the rotor 11, the direction of the guide 28 is controlled by the timing pulleys 212 to 215, so that the yarn guide 28 always moves in parallel.

[0054]

According to the traverse device according to the present invention, the first
The second rotating member is rotated on the rotating member, and the speed of the folded portion is corrected by an unequal speed gear such as a non-circular gear in order to reduce the accumulation of the thread at the folded portion.
As a result, the acceleration of deceleration / acceleration of the folded portion becomes small, the shock is small, and the life of the component is long.

According to the traverse device according to the present invention,
Since the traversing yarn is always regulated by the yarn guide, the single yarn of the yarn is not broken or looped, and the yarn quality and the unwinding property of the obtained package are improved.

Further, according to the traverse device according to the present invention,
One traverse yarn is gripped by one yarn guide, and there is no transfer of yarn between yarn guides unlike a traverse device in a conventional rotating guide that rotates mutually. For this reason,
The yarn quality is improved without the yarn being damaged during delivery.

[Brief description of the drawings]

FIG. 1 is a front view of an embodiment of a yarn winding device incorporating a yarn traversing device according to the present invention.

FIG. 2 is a front view of an embodiment of a yarn traversing device according to the present invention.

3A is a sectional view taken along the line IIIa-IIIa in FIG. 2, and FIG. 3B is a sectional view taken along the line IIIb-IIIb in FIG.

FIG. 4 is a rear view showing the drive system of the present apparatus as viewed in the direction of arrow IV in FIG. 3;

FIG. 5 shows another embodiment of the present invention.

FIG. 6 shows yet another embodiment of the present invention.

FIG. 7 illustrates another embodiment of the present invention.

[Explanation of symbols]

 7 Frame 8 Fixed gear 8 'Fixed pulley 11 First rotating member (rotor) 13 Second rotating member (shaft) 18 Movable gear 18' Movable pulley 21 Second rotating member (arm) 28 Thread guide 30a, 30b Non-constant speed ratio Gear 44 Motor (drive source) A First rotation axis B Second rotation axis C Third rotation axis R Radius r Radius

Claims (7)

[Claims] 1. A first rotating shaft center A on a case of a traversing device.
The first rotation member is rotatably supported around the first rotation member, and the second rotation member is rotatable around a second rotation axis B located at a distance of a radius R from the first rotation axis A on the first rotation member. A rotating member is provided, and the second rotating member has a radius r from the second rotation axis B.
, A thread guide is disposed on a third rotation axis C, and a fixed member is fixedly installed coaxially with the first rotation axis A, and the second rotation member is coaxially formed with the rotation axis B. A movable member is integrally provided, and the movable member rotates in the reverse direction with respect to the first rotating member, and the fixed member and the movable member have a rotation ratio of 1: 2. In the yarn traversing device connected to the movable member, the yarn guide is rotatable around the third rotation axis C on the second rotation member, and the yarn guide is rotatable about the first rotation axis A. A traversing device for a yarn, wherein the disposed first rotating member is connected to a drive source via a variable speed ratio gear. 2. The yarn guide according to claim 1, wherein the yarn guide is traversed by correcting the speed of the folded portion so as to reduce the accumulation of the yarn at the traverse end. A traverse device. 3. The yarn traversing device according to claim 1, wherein a guide rail for regulating the direction of the yarn guide in the traversing direction is arranged in the axial direction of the traversing. 4. The unequal speed ratio gear is a gear having a pitch circle having an elliptical shape, and a ratio of a long radius to a short radius is 1.
The yarn traversing device according to any one of claims 1 to 3, wherein the yarn traversing ratio is 6 to 2.2. 5. The yarn guide is fixed to a shaft rotatable around the third rotation axis C, and is fixedly mounted on the shaft and a second rotation axis B on the first rotation member. The yarn traversing device according to claim 1, 2 or 4, wherein the members are connected so as to rotate in opposite directions at a rotation ratio of 2: 1. 6. The yarn guide is fixed to a shaft rotatable around the third rotation axis C, and a rotation ratio between the shaft and a member fixed to the first rotation axis A is set. The yarn traversing device according to claim 1, 2 or 4, wherein the yarns are connected so as to rotate in the same direction at a ratio of 1: 1. 7. The second rotation axis B includes a shaft on which the thread guide is fixed and rotatable around the third rotation axis C, and a member fixedly installed on the first rotation axis A. The yarn traversing device according to claim 6, wherein the yarn traversing device is connected via a shaft rotatable around the yarn.