JP2756182B2 - Optical fiber positioning device for double-headed optical fiber take-up bobbin switching device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in an optical fiber positioning device for a two-headed optical fiber winding bobbin switching device. Especially,
When switching from one of the two winding bobbins in a two-head type optical fiber winding machine to the other, the object is to prevent the switching from failing due to the swing of the optical fiber and improve the switching success rate. To improve.

[Conventional technology]

The optical fiber refers to an optical transmission line in which a core wire composed of a double cylinder of quartz having an outer diameter of 125 μm is coated with a plastic coat having a thickness of about 60 μm.

 Optical fibers have the following unique properties.

I. Because it is very thin, it is extremely lightweight and breaks easily.

B. Bending with a small radius of curvature (called micro-bending) causes radiation loss of light and reduces the transmission efficiency of the optical fiber.

C. In the case of a metal wire, the transmission loss of the optical fiber increases and the transmission efficiency of the optical fiber decreases only by applying a tension that is considered normal.

To manufacture an optical fiber, a quartz double-column preform (called a preform) having a diameter of 20 to 60 mm is melted in a melting path, and a core of an optical fiber having a diameter of 125 μm is manufactured through a die. Subsequently, the outer periphery of the core wire is coated with a resin in a resin coating tank to produce an optical fiber having a diameter of 250 μm. This optical fiber is paid out by a capstan. When the optical fiber manufacturing apparatus described above is used, an optical fiber having a long length, for example, about 100 km is continuously manufactured from a single preform, and it is particularly important that the optical fiber cannot be stopped halfway. For this reason, it is necessary to continuously wind the manufactured optical fiber. Therefore, conventionally, an optical fiber winding machine has been directly connected to the above optical fiber manufacturing apparatus. If the two winding bobbins are alternately switched and wound in this optical fiber winding machine, continuous winding can be performed extremely efficiently. Such a winder of the type in which two winding bobbins are alternately switched and wound is called a double-head winder.

In a two-head winding machine, a winding bobbin switching device for alternately switching between two winding bobbins is required. Hereinafter, a winding bobbin switching device according to the prior art applied to an optical fiber winding machine,
This will be described with reference to FIG.

Referring to FIG. 5, reference numerals 7a and 7b denote two winding bobbins, which are rotatably supported by two rotationally driven shafts 6a and 6b, respectively. Reference numerals 8a and 8b denote two optical fiber capturing rotating bodies which are adjacent to the bobbins 7a and 7b, respectively, are pivotally supported by the shafts 6a and 6b, and have optical fiber capturing claws 9a and 9b. Reference numeral 10 denotes an optical fiber traveling path moving means which is disposed in an intermediate region between the two bobbins 7a and 7b and moves the traveling path of the optical fiber 15 in a direction parallel to the axes 6a and 6b. The optical fiber traveling path moving means 10 is composed of three rods 4a, 4b, 4c that move independently of each other in a direction parallel to the two axes 6a, 6b, and each of the rods 4a, 4b, 4c. 4b
・ The cross section perpendicular to the axis of 4c has a substantially constant shape along the axis. Reference numeral 16 denotes an optical fiber traveling direction selecting means for selecting a feeding direction for feeding the optical fiber 15.

Next, the operation of the conventional winding bobbin switching device will be described.

For example, when the winding of the bobbin 7a is completed and the bobbin 7a is switched to the bobbin 7b among the two bobbins 7a and 7b, the three of the three optical fiber traveling path moving units 10 in response to the switching command. Of the rods 4a, 4b, and 4c, the rod 4b that is closer to the bobbin 7b moves from the position indicated by the broken line toward the optical fiber catching claw 9b, and the rods 4a, 4b, and 4c move out of the three rods 4a, 4b, and 4c. The rod 4c located in the center is
The three rods 4a move from the position indicated by the broken line toward the direction away from the optical fiber catching claw 9b.
-The rod-like body 4a, which is close to the bobbin 7a, of 4b and 4c does not move and remains at the previous position. And the above optical fiber 15
When comes to the position shown in the figure, the optical fiber catching claw 9b provided on the optical fiber catching rotating body 8b already rotating with the bobbin 7b engages the optical fiber 15. At this time, the optical fiber 15 is pushed by the rod 4c located at the center and does not engage with the optical fiber catching claw 9a. Therefore, since the optical fiber is engaged only by the capturing claw on the bobbin that is switched to start winding, the starting point for winding the bobbin is established by the capturing claw.
Winding starts smoothly, and stable bobbin switching is achieved. The wound bobbin is cut off at the end of the wound optical fiber and removed from the shaft.

[Problems to be solved by the invention]

However, as described above, the optical fiber is extremely thin and extremely lightweight, so that the optical fiber swings due to the wind generated by the rotation of the winding bobbin and the breeze in the clean room where the winding machine is placed. In the winding bobbin switching device according to the related art, the optical fiber swings when the optical fiber advancing path moving means guides the optical fiber to a position where the optical fiber catching claw engages the optical fiber. There is a disadvantage that the fiber traveling path is not stable, and the optical fiber capturing by the capturing claw fails, and as a result, the probability that the bobbin switching fails is not negligible.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned drawbacks, and when switching from one of the two winding bobbins in a two-head type optical fiber winding machine to the other, the switching fails due to the swing of the optical fiber. It is an object of the present invention to provide an optical fiber positioning device for a two-headed optical fiber take-up bobbin switching device which can prevent the switching success rate from being improved.

[Means for solving the problem]

The above object is achieved by any of the following means.

The first means consists of two axes (6
a) Two bobbins (7a) supported on each of (6b)
(7b), two optical fiber capturing rotators (8a) (8b), each of which is supported by the shaft (6a) (6b) and has optical fiber capturing claws (9a) (9b); The optical fiber traveling path movement is disposed in a region sandwiched between the two bobbins (7a) and (7b) and moves the traveling path of the optical fiber (15) in a direction parallel to the axes (6a) and (6b). A two-headed optical fiber take-up bobbin having means (10) and optical fiber advancing direction selecting means (16) for selecting a feeding direction of the optical fiber (15) to the bobbins (7a) (7b). In the optical fiber positioning device for a switching device, the optical fiber traveling path moving means (10) is provided with the two shafts (6
a) three rods extending in a direction substantially perpendicular to the plane defined by (6b) and moving independently of each other in a direction parallel to the two axes (6a) and (6b); 1a) (1b) (3)
The optical fiber (15) is formed by the optical fiber capture from the rods (1a) (1b) located at both ends of the three rods (1a) (1b) (3). Nail (9a) (9
b) and the opposite side of the optical fiber catching claws (9a) (9b) from the rod (3) located at the center of the three rods (1a) (1b) (3). When the bobbin around which the optical fiber (15) passes and is wound around is changed from one of the two bobbins (7a) (7b) to the other, the three rods (1a) ( 1b) In (3), the rod-like body near the other is the optical fiber catching claw (9a).
(9b) and move to the three rods (1a)
(1b) The rod (3) located at the center of (3) moves in a direction away from the optical fiber catching claws (9a) (9b), and the rods (1a) (1b) ( In 3), both ends of the rods (1a) and (1b) located at both ends are enlarged (11
a) (11b) is provided, and the aforementioned enlarged part (11a) (1
The surfaces facing each other in 1b) are optical fiber positioning devices for a two-headed optical fiber take-up bobbin switching device which are substantially hemispherical.

The second means consists of two axes (6
a) Two bobbins (7a) supported on each of (6b)
(7b), two optical fiber capturing rotators (8a) (8b), each of which is supported by the shaft (6a) (6b) and has optical fiber capturing claws (9a) (9b); An optical fiber traveling path disposed in a region sandwiched between the two bobbins (7a) and (7b) for moving the traveling path of the optical fiber (15) in a direction parallel to the axes (6a) and (6b). Means of transportation (10),
Optical fiber positioning for a two-head type optical fiber take-up bobbin switching device having optical fiber advancing direction selecting means (16) for selecting a feeding direction of the optical fiber (15) to the bobbins (7a) (7b). In the apparatus, the optical fiber traveling path moving means (10) extends in a direction substantially orthogonal to a plane defined by the two axes (6a) and (6b), and is independent of each other. Three rods (2a) (2b) moving in a direction parallel to the two axes (6a) (6b)
The optical fiber (15) is composed of the rods (2a) (2b) located at both ends of the three rods (2a) (2b) (3). Optical fiber catch claw (9
a) (9b) side and the three rods (2a) (2b)
The bobbin around which the optical fiber (15) is wound around the rod-like body (3) located on the opposite side from the optical fiber catching claws (9a) and (9b) from the rod-shaped body (3) located at the center of (3).
When one of the bobbins (7a) (7b) is changed to the other, the three rods (2a) (2b) (3)
Of the three rods (2a), (2b) and (3), the rod near the other moves toward the optical fiber catching claws (9a) and (9b). Rods (3)
Moves in a direction away from the optical fiber catching claws (9a) (9b), and the rods (2a) (2b) located at both ends of the rods (2a) (2b) (3) When switching from one of the bobbins (7a) (7b) to the other, a triangle having an apex angle formed by the angle formed by the optical fiber (15) with each axis of the rods (2a) (2b) is rotated. This is an optical fiber positioning device for a two-headed optical fiber take-up bobbin switching device narrowed to a polygonal pyramidal or conical taper (21a) (21b).

In the structure of the first means or the structure of the second means, an enlarged portion (31) is provided at both ends of the rod-shaped body (3) located at the center, and the enlarged portion (31) is provided. The effect is particularly remarkable when the surfaces facing each other are substantially hemispherical. Further, in the configuration of the first means or the configuration of the second means, the rod-shaped body (3) located at the center is provided.
When the optical fiber (15) is switched from one of the bobbins (7a) (7b) to the other, the rod (3)
The effect is particularly remarkable when the shape is reduced to a polygonal pyramid or conical taper (32) obtained by rotating a triangle having an apex angle formed by an angle formed with the axis of the polygon.

[Action]

In response to the switching command from one of the two winding bobbins to the other, the rod near the other of the three rods constituting the optical fiber traveling path moving means and the rod located at the center are formed. When starting to move and moving while pushing the optical fiber, in the prior art, the optical fiber swings mainly in the direction along the rod. Therefore, in the optical fiber positioning device for the take-up bobbin switching device according to the present invention, the portion corresponding to the optical fiber advancing path at the time of bobbin switching in the rod-shaped body located at both ends of the three or the three. A portion of the rod-shaped body corresponding to the optical fiber traveling path is thinner than portions on both sides sandwiching these portions. Therefore,
At the time of bobbin switching, the optical fiber is pushed and moved by the thinned portion of the rod. As a result, even if the optical fiber attempts to swing due to wind or the like, the thicker portion of the rod-shaped body suppresses the swing. Therefore, bobbin switching failure due to swing can be prevented, and the switching success rate can be improved.

〔Example〕

Hereinafter, an optical fiber positioning device for a two-headed optical fiber take-up bobbin switching device according to a fourth embodiment of the present invention will be described with reference to the drawings.

First embodiment (corresponding to claim [1]) See FIG. 1. In the drawing, 6a and 6b are arranged in parallel with each other.
It is a winding shaft driven by rotation. 7a and 7b are
Two winding bobbins are supported by the two shafts 6a and 6b, respectively. Reference numerals 8a and 8b denote two optical fiber capturing rotating bodies that are adjacent to the bobbins 7a and 7b, respectively, are supported by the shafts 6a and 6b, and have optical fiber capturing claws 9a and 9b. Reference numeral 10 denotes an optical fiber traveling path moving means which is disposed in a region between the two bobbins 7a and 7b and moves the traveling path of the optical fiber 15 in a direction parallel to the axes 6a and 6b. This optical fiber traveling path moving means 10
Consists of a set of three rods 1a, 1b, 3 that move independently of each other in a direction parallel to the two axes 6a, 6b. 1a and 1b are rods located at both ends of the above three rods, and the enlarged portions 11a are located at both ends of the rods 1a and 1b.
・ 11b is provided. These enlarged parts 11a and 11b are movable along the rod-shaped bodies 1a and 1b, respectively, and the mutually facing surfaces of the enlarged parts 11a and 11b are substantially hemispherical. Reference numeral 3 denotes a rod-like body located at the center of the above-mentioned three rod-like bodies, and its cross section perpendicular to its axis has a substantially constant shape. Reference numeral 15 denotes an optical fiber. The optical fiber 15 is formed between the rods 1a and 1b at the both ends and on the side of the trapping claws 9a and 9b and the rod 3 at the center.
Pass on the opposite side of 9a and 9b. 16 is the above optical fiber 15
Is an optical fiber advancing direction selecting means for selecting a feeding direction for feeding to the bobbins 7a and 7b.

Next, the operation of the optical fiber positioning device for a two-headed optical fiber take-up bobbin switching device according to the present embodiment will be described.

For example, when the winding of 7a is completed between the two bobbins 7a and 7b and switching from the winding bobbin 7a to 7b is performed, the optical fiber 15 is not always engaged with the optical fiber catching claws 9a and 9b. Optical fiber traveling path moving means 10
In response to the switching command, of the three rods, the rod 1b closer to the bobbin 7b moves toward the catching claw 9b, and the rod 3 located at the center is the catching claw 9b. Move away from. The rod-shaped body 1b pushes the optical fiber 15 at the rod-shaped portion, and the rod-shaped body 3 pushes the optical fiber 15 on the side surface of the rod-shaped body at a predetermined position (the optical fiber 15 is held only by the catching claw 9b). To a position where they can be combined). At this time, the optical fiber 15
Even if it tries to swing due to wind or the like, the expanding part 11b provided on both sides of the rod-shaped body 1b suppresses the swing of the optical fiber 15, so that with a high probability, the traveling path of the optical fiber 15 is stable. Maintained, the optical fiber 15 is engaged with the catch claw 9a,
Since the bobbin 7b starts winding, the bobbin switching success rate is improved. When the winding of the bobbin 7b is completed and the bobbin 7b is switched to the bobbin 7a, the optical fiber traveling direction selecting means 16 moves to the position shown by the broken line in the figure, and the same operation as the above-described operation is performed. , The bobbin 7b is switched to the bobbin 7a.

The enlarged portions 11a and 11b provided at both ends of the rods 1a and 1b of the present embodiment can move along each of the rods 1a and 1b, so that the positions corresponding to the optical fiber traveling paths can be adjusted. There is an advantage that the enormous portions 11a and 11b can be moved.

By the way, the second embodiment and the following embodiments differ from the first embodiment only in that the rod-shaped body constituting the optical fiber traveling path moving means 10 is different. The emphasis will be placed on the rod-shaped body.

Second Embodiment (corresponding to claim [2]) Referring to FIG. 2, reference numeral 10 denotes an optical fiber traveling path moving means, which moves independently of each other in a direction parallel to the axis of the winding bobbin. It is composed of a set of individual rods 2a, 2b and 3. 2a and 2b are rods located at both ends of the above-mentioned three rods, and these rods 2a and 2b are optical fibers when switched from one of the winding bobbins to the other.
15 is reduced to a polygonal pyramid or conical taper 21a, 21b obtained by rotating a triangle having an apex as an angle formed by the axis of each of the rods 2a, 2b.

Next, the operation of the rod according to the present embodiment will be described.

When switching from one of the winding bobbins to the other, in response to the switching command, a rod (for example, 2b) close to the other of the three rods and a rod 3 positioned at the center are formed. It moves in the same direction as in the first embodiment. The rod-like body (for example, 2b) near the other side pushes the optical fiber 15 at the narrowed portion, and the central rod-like body 3 pushes the optical fiber 15 on the side surface thereof at a predetermined position. (The position where the optical fiber 15 is engaged only with the above-mentioned catching claw on the other side). At this time, even if the optical fiber 15 tries to swing due to the wind or the like, the optical fiber 15 is formed by the tapered surfaces (for example, 21b) on both sides of the narrowed portion of the rod-like body (for example, 2b) near the other end. Is suppressed from swinging. Therefore, the optical fiber 15 can stably maintain the traveling path with a high probability, and the switching success rate can be improved.

The broken line in the figure shows the optical fiber 15 at the time of bobbin switching reverse to the case of the solid line.

In the rods 2a and 2b of the present embodiment, the tapered surfaces 21a and 21b for suppressing the swing of the optical fiber are in contact with the optical fiber from the spherical surfaces of the enlarged portions 11a and 11b for suppressing the swing in the first embodiment. Since the length of the rod is long, the rod-shaped body of this embodiment has a greater effect of suppressing the fluctuation of the optical fiber than the rod-shaped body of the first embodiment.

Third Embodiment (corresponding to claim [3]) In this embodiment, the rod 3 located at the center of the three rods in the first and second embodiments is a rod having a shape shown in FIG. It is an optical fiber positioning device for a two-headed optical fiber take-up bobbin switching device that forms a body.

Referring to FIG. 3, the rod-shaped body 3 shown in the figure has enlarged portions 31 at both ends of the rod-shaped body 3 like the rod-shaped bodies 1b and 1b located at both ends of the three rod-shaped bodies in the first embodiment. The enlarged portion 31 is movable along the rod 3, and mutually facing surfaces of the enlarged portion 31 are bar-shaped members that are substantially hemispherical.

The operation of the optical fiber positioning device for the two-headed optical fiber take-up bobbin switching device according to the present embodiment is similar to the operation of the two-headed optical fiber according to the first embodiment except that the rod 3 suppresses the swing of the optical fiber. The operation is the same as the operation of the optical fiber positioning device for the fiber winding bobbin switching device and the optical fiber positioning device for the two-head type optical fiber winding bobbin switching device according to the second embodiment.

Accordingly, two out of the three rods (one of the rods at both ends and the rod at the center) of the present embodiment suppress the oscillation of the optical fiber when the bobbin is switched, and the corresponding first rods. The optical fiber swing suppression effect is higher than in the case of the embodiment and the second embodiment, and there is an advantage that the switching success rate can be further increased.

Fourth Embodiment (corresponding to claim [4]) In this embodiment, the rod 3 located at the center of the three rods in the first and second embodiments is a rod having a shape shown in FIG. It is an optical fiber positioning device for a two-headed optical fiber take-up bobbin switching device that forms a body.

See FIG. 4. The rod 3 shown in FIG. 4 is the same as the rods 2a and 2b located at both ends of the three rods in the second embodiment. Is a rod-shaped body that is narrowed into a polygonal pyramid or conical taper 32 obtained by rotating a triangle having an apex angle formed by an angle formed with the axis of the polygon.

The operation of the optical fiber positioning device for the two-headed optical fiber take-up bobbin switching device according to the present embodiment is similar to the operation of the two-headed optical fiber according to the first embodiment except that the rod 3 suppresses the swing of the optical fiber. The operation is the same as the operation of the optical fiber positioning device for the fiber winding bobbin switching device and the optical fiber positioning device for the two-head type optical fiber winding bobbin switching device according to the second embodiment.

Accordingly, two out of the three rods (one of the rods at both ends and the rod at the center) of the present embodiment suppress the oscillation of the optical fiber when the bobbin is switched, and the corresponding first rods. The optical fiber swing suppression effect is higher than in the case of the embodiment and the second embodiment, and there is an advantage that the switching success rate can be increased.

〔The invention's effect〕

As described above, in the optical fiber positioning device for the two-headed optical fiber take-up bobbin switching device according to the present invention, the optical fiber traveling path moving means is constituted by a set of three rods, and both ends of the three rods are set. The two rods of
An enlarged portion is provided at each end, and the mutually facing surfaces of the rods are hemispherical rods, or the two rods at both ends are the optical fiber and the above at the time of bobbin switching. Since the rod-shaped body is thinned into a polygonal pyramid or conical taper obtained by rotating a triangle having an apex angle between the axis of the rod-shaped body, the optical fiber at the time of bobbin switching is the same as the rod-shaped body. Since the rod is pushed to the position where the rod is pushed by the rod at the part where the rod is thinner and engages with the catching claw, the swing of the optical fiber is effectively suppressed by the thicker part of the rod, and as a result, the optical fiber Is stable, and the switching failure is prevented with a high probability.

In addition, when the rod located at the center of the three rods has the same shape as the rods at both ends, the effect of suppressing the swing of the optical fiber is further increased, and the switching failure is reduced. It can be prevented more efficiently.

Therefore, the present invention can provide an optical fiber positioning device for a two-headed optical fiber take-up bobbin switching device that can improve the success rate of switching at the time of bobbin switching and improve productivity.

[Brief description of the drawings]

FIG. 1 shows a first embodiment of the present invention (corresponding to claim [1]).
1 is a configuration diagram of an optical fiber positioning device for a two-headed optical fiber take-up bobbin switching device and a take-up bobbin switching device according to the present invention. FIG. 2 shows a second embodiment of the present invention (corresponding to claim [2]).
1 is a side view of an optical fiber positioning device for a two-headed optical fiber take-up bobbin switching device according to the present invention. FIG. 3 shows a third embodiment of the present invention (corresponding to claim [3]).
FIG. 5 is a side view of a central rod-shaped member among three rod-shaped members of the optical fiber positioning device for a two-headed optical fiber take-up bobbin switching device according to the first embodiment. FIG. 4 shows a fourth embodiment of the present invention (corresponding to claim [4]).
FIG. 5 is a side view of a central rod-shaped member among three rod-shaped members of the optical fiber positioning device for a two-headed optical fiber take-up bobbin switching device according to the first embodiment. FIG. 5 is a configuration diagram of a take-up bobbin switching device according to the related art. 1a, 1b, 2a, 2b ..... rods at both ends of the three rods, 11a. 11b .. bulging part, 21a. 21b .. taper, 3 ..... at center of three rods. Rod-shaped body, 31 ... Enlarged part, 32 ... Taper, 6a / 6b ... Shaft, 7a / 7b ... Winding bobbin, 8a / 8b ... Optical fiber capturing rotating body, 9a / 9b ... Optical fiber capturing Claw, 10: Optical fiber traveling path moving means, 15: Optical fiber, 16: Optical fiber traveling direction selecting means.

────────────────────────────────────────────────── ─── Continuation of the front page (56) References Japanese Patent Publication No. 50-18948 (JP, B2) Japanese Patent Publication No. 50-18946 (JP, B2) Japanese Utility Model Publication No. 54-12147 (JP, Y2) (58) Field (Int.Cl. ⁶ , DB name) B65H 67/00-67/056 B65H 57/00-57/14

Claims (4)

(57) [Claims] 1. Two bobbins (7a) and (7b) supported by respective two shafts (6a) and (6b) arranged in parallel with each other.
Two optical fiber capturing rotators (8a) and (8b) supported by the respective shafts (6a) and (6b) and having optical fiber capturing claws (9a) and (9b); and the two bobbins. (7a) The optical fiber (15) is disposed in a region sandwiched by the (7b) and the optical fiber (15) travels along the axis (6a) (6b)
An optical fiber traveling path moving means (10) for moving the optical fiber in a direction parallel to the optical fiber; and an optical fiber traveling direction selecting means (1) for selecting a feeding direction of the optical fiber (15) to the bobbins (7a) (7b).
6) An optical fiber positioning device for a two-head type optical fiber take-up bobbin switching device, comprising: the optical fiber traveling path moving means (10) is provided on a plane defined by the two axes (6a) and (6b). Three rods (1a) (1b) extending in a direction substantially perpendicular to each other and moving independently of each other in a direction parallel to the two axes (6a) (6b)
The optical fiber (15) is composed of the three rods (1a) (1
b) Of the three rods (1a) (1b) (3), the side of the optical fiber catching claws (9a) (9b) from the rods (1a) (1b) located at both ends of (3). The bobbin passing through the opposite side of the optical fiber catching claws (9a) and (9b) from the rod-shaped body (3) located at the center and around which the optical fiber (15) is wound is the 2nd bobbin.
When one of the three bobbins (7a) (7b) is changed to the other, the one of the three rods (1a), (1b), and (3) that is closer to the other is the optical fiber trap. Nails (9
a) Moving toward (9b), the three rods (1a)
(1b) The rod (3) located at the center of (3) moves in a direction away from the optical fiber catching claws (9a) (9b), and the rods (1a) (1b) (3) Of the rods (1a) and (1b) located at both ends, enlarged parts (11a) and (11b) are provided at both ends, and the mutually facing surfaces of the enlarged parts (11a) and (11b) are generally 。An optical fiber positioning device for a two-head type optical fiber take-up bobbin switching device, which is substantially hemispherical. 2. Two shafts (6a) arranged parallel to each other.
(6b) two bobbins (7a) and (7b) rotatably supported on each of the shafts (6a) and (6b) rotatably supported on each of the shafts (6a) and (6b);
Two optical fiber capturing rotating bodies (8a) and (8b) having optical fiber capturing claws (9a) and (9b); and an optical fiber disposed in a region sandwiched between the two bobbins (7a) and (7b). (15) The traveling path of the axis (6a) (6b)
An optical fiber traveling path moving means (10) for moving the optical fiber in a direction parallel to the optical fiber; and an optical fiber traveling direction selecting means (1) for selecting a feeding direction of the optical fiber (15) to the bobbins (7a) (7b).
6) An optical fiber positioning device for a two-head type optical fiber take-up bobbin switching device, comprising: the optical fiber traveling path moving means (10) is provided on a plane defined by the two axes (6a) and (6b). Three rods (2a) (2b) extending in a direction substantially perpendicular to each other and moving independently of each other in a direction parallel to the two axes (6a) (6b)
The optical fiber (15) is composed of the three rods (2a) (2).
b) Of the rods (2a) and (2b) located at both ends of (3), the side of the optical fiber catching claws (9a) and (9b) and the three rods (2a) (2b) and (3) The bobbin passing through the opposite side of the optical fiber catching claws (9a) and (9b) from the rod-shaped body (3) located at the center and around which the optical fiber (15) is wound is the 2nd bobbin.
When one of the three bobbins (7a) (7b) is changed to the other, the one of the three rods (2a) (2b) (3) that is closer to the other is the optical fiber trap. Nails (9
a) Moving toward (9b), the three rods (2a)
(2b) The rod (3) located at the center of (3) moves in a direction away from the optical fiber catching claws (9a) (9b), and the rods (2a) (2b) (3) The rods (2a) and (2b) located at both ends of the rod-shaped bodies (2a) and (2b) are arranged such that when one of the bobbins (7a) and (7b) is switched to the other, the optical fiber (15) is connected to each of the rods (2a) (2b) A two-headed optical fiber take-up bobbin switching device characterized in that it is thinned into a polygonal pyramid or conical taper (21a) (21b) obtained by rotating a triangle having an apex angle formed by an angle formed with an axis. Optical fiber positioning device. 3. An enlarged portion (31) is provided at both ends of the rod-shaped body (3) located at the center, and mutually facing surfaces of the enlarged portion (31) are substantially hemispherical. The optical fiber positioning device for a two-head type optical fiber take-up bobbin switching device according to claim 1 or 2, wherein: 4. The rod (3) located at the center has an angle between an optical fiber (15) and an axis of the rod (3) when one of the bobbins (7a) (7b) is switched to the other. The double-headed optical fiber winding according to claim 1 or 2, wherein the tapered shape is reduced to a polygonal pyramid or conical taper (32) obtained by rotating a triangle having an apex of. Optical fiber positioning device for take-up bobbin switching device.