Patent Application
20220396453
The present disclosure relates to a wire body winding device and a wire body manufacturing method.
The present application claims priority from Japanese Patent Application No. 2019-202154 filed on Nov. 7, 2019, entire contents of which are incorporated by reference.
When an optical fiber is drawn, the optical fiber is wound around a bobbin by a winding device, and is continuously wound while the bobbin in which the optical fiber is fully wound is switched to another bobbin.
At this time, Patent Document 1 discloses a technique of locking the optical fiber to a locking portion attached to a rotating plate and switching a bobbin that winds the optical fiber.
A wire body winding device according to one aspect of the present disclosure includes:
A wire body manufacturing method according to one aspect of the present disclosure includes:
In recent years, the number of types of an optical fiber is increased, and a coating outer diameter is thicker during wire drawing, so that it is necessary to wind optical fibers having a wide range of thicknesses, from a small diameter fiber having a coating outer diameter of about 200 μm to a large diameter fiber having a coating outer diameter of about 330 μm. Therefore, regardless of the thickness of the optical fiber, it is desirable to prevent the optical fiber from coming off a locking portion or being flipped without entering the locking portion when the optical fiber is gripped by the locking portion.
The present disclosure has been made in view of the above circumstances, and an object of the present disclosure is to provide a wire body winding device and a wire body manufacturing method capable of locking wire bodies without failure even when the wire bodies have different thicknesses.
According to the present disclosure, even when the wire bodies have different thicknesses, the wire bodies can be locked without failure.
First, contents of embodiments of the present disclosure will be listed and described.
(1) A wire body winding device according to the present disclosure includes:
Since the locking portion has the shape in which the distance between the base member and the guide member increases gradually from the base end portion toward the tip end portion, a wire body having a large diameter can be gripped closer to the tip end portion, and a wire body having a smaller diameter can be gripped closer to the base end portion. As a result, even when the wire bodies have different thicknesses, the wire body can be locked without failure.
(2) In one aspect of the wire body winding device of the present disclosure, the guide member has a gradient in which the distance between the base member and the guide member increases from the base end portion toward the tip end portion. Since the guide member is provided with the gradient, it is only necessary to change the guide member to adjust an increase of the distance between the base member and the guide member. Therefore, a degree of the increase can be easily adjusted as compared with a case where the base member fixed to the rotating plate is provided with the gradient.
(3) In one aspect of the wire body winding device of the present disclosure, a thickness of the guide member is thinner from the base end portion toward the tip end portion.
According to such a configuration, the gradient can be easily provided by changing the thickness of the guide member.
(4) In one aspect of the wire body winding device of the present disclosure, the base member and the guide member are made of metal. When the base member and the guide member are made of metal, it is not necessary to consider a deformation of the base member when the wire body is gripped, so that the wire bodies having different thicknesses can be reliably gripped.
(5) In one aspect of the wire body winding device of the present disclosure, the guide member includes a facing surface facing the base member, and the facing surface includes: a contact region that is contactable with the wire body, and inclined surface regions that are provided on both sides of the contact region in a direction intersecting with a direction from the base end portion toward the tip end portion and that have an inclination away from the base member as being away from the contact region. Since the inclined surface regions are less likely to come into contact with the wire body, a load on the wire body is prevented.
(6) In one aspect of the wire body winding device of the present disclosure, the base member and the guide member are separated by a given gap at a starting point where the distance between the base member and the guide member increases, which is located at an end of the base end portion. A gap is provided at a position where the distance between the base member and the guide member begins to increase, lengthening of the locking portion can be avoided, and a compact locking portion can be provided.
(7) In one aspect of the wire body winding device of the present disclosure, the gradient of the guide member with respect to the base member is 1/50 or less. The wire bodies having different thicknesses can be more reliably gripped by the same locking portion.
(8) A wire body manufacturing method according to the present disclosure includes: locking a wire body by a locking portion provided on a rotating plate that rotates together with a drive shaft at a time of bobbin switching; and
Hereinafter, preferred embodiments of the wire body winding device and the wire body manufacturing method according to the present disclosure will be described with reference to the accompanying drawings.
The claw wheel 3 includes a bobbin accommodating portion 4 having a circular shape and a flange-shaped portion 5 made of, for example, aluminum, which is formed on an outer periphery of the bobbin accommodating portion 4. A bobbin 2 is detachably attached to the bobbin accommodating portion 4, and the locking portion 10 is fixed to the flange-shaped portion 5 by, for example, two hexagon socket head bolts 46.
The locking portion 10 can be locked by hooking the wire body such as an optical fiber, an electric wire/cable with a small diameter, or the like. The winding device is configured to be able to switch the bobbin in which the wire body is fully wound to another bobbin, and also includes another claw wheel that is capable of attaching the other bobbin to another position. The locking portion having the same function as the locking portion 10 is provided in the flange-shaped portion of the other claw wheel.
The locking portion 10 includes a base member 20 and the guide member 40 disposed so as to overlap the base member 20.
The base member 20 includes a base body 21 made of, for example, stainless steel (SUS304). As shown in
The first taper 23 of the base member is inclined so as to approach the guide member 40 as advancing from a front end portion of the front surface 22 to a center position of the front surface 22, and is used for guiding the wire body. The front surface 22 and the first taper 23 of the base member are subjected to, for example, alumite treatment in order to obtain abrasion resistance. Bolt holes 45 for the hexagon socket head bolts 46 are provided so as to penetrate the fixing portion 24 of the base member, although the bolt holes 45 are not visible at a cross-sectional position of
The guide member 40 is made of, for example, stainless steel (SUS304). The guide member 40 includes a tip end claw 41 that guides the wire body, and the locking portion 10 rotates together with the claw wheel 3. As shown in
A fixing portion 44 of the guide member is provided in a rear side of the facing surface 42 when viewed in the rotation direction of the claw wheel 3, and as shown in
As shown in
In the present embodiment, an example in which the guide member 40 is formed in the stepped shape is described. However, the present disclosure is not limited to this example. In order to obtain the gap G, for example, instead of the guide member 40 having a stepped shape, the guide member 40 may have the fixing portion 44 of the guide member and the facing surface 42 flush with each other, and a shim may be sandwiched between the fixing portion 24 of the base member and the fixing portion 44 of the guide member.
The facing surface 42 includes a contact region 42a that is contactable with the wire body. The contact region 42a is formed to have a given width in a width direction of the guide member 40 (the same as a Y direction in
Specifically, the second taper 50 is set in a range of 1:200 (0.5% gradient) or more to 1:50 (2% gradient) or less. In an example of the former 1:200 (0.5% gradient), this gradient corresponds to a case that the thickness direction of the guide member 40 (the same as the Z direction in
By providing the second taper 50 described above, even when the wire bodies have different thicknesses, the wire bodies can be gripped by the same locking portion 10 without failure.
Further, since the guide member 40 is provided with the second taper 50, it is only necessary to change the guide member 40 to adjust the gradient. Therefore, the gradient can be easily adjusted as compared with a case where the base member 20 fixed to the rotating plate is provided with a taper.
The base member 20 and the guide member 40 are made of metal. When the base member 20 is made of an elastic body, for example, in a case of the wire body having a small diameter, the base member 20 is less deformed, so that a gripping force is small, and in a case of the wire body having a large diameter, even when the base member 20 is deformed, it is difficult for the wire body to enter an inner side, and locking is easily failed. On the other hand, if the base member 20 and the guide member 40 are made of metal as described above, the base member 20 is not deformed when gripping the wire body, so that the wire bodies having different thicknesses can be reliably gripped by the same strength.
As shown in
The wire body 1 enters the locking portion 10 by rotation of the claw wheel 3. In a state in which the wire body 1 travels in the width direction of the guide member 40 (the same as the Y direction in
In the case of the wire body 1 having a small diameter, as shown in
Assuming that a boundary position between the fixing portion 44 of the guide member and the contact region 42a is a reference position P, the wire body 1 is gripped at a bite position separated by a distance L from the reference position P. In the case of the wire body 1 having a large diameter (
Next, the gradient of the second taper 50 was changed, and a gripping state of the wire body 1 gripped by the locking portion 10 was observed and evaluated.
More specifically, both sides of the wire body 1 are held by a hand, pressed into the locking portion 10 from the first taper 43 of the guide member toward the fixing portion 44 of the guide member with a substantially constant force, and gripped by the locking portion 10. Thereafter, a force in the Y direction shown in
As shown in
On the other hand, when the gradient was the same as that of the sample 1 and a shim having a thickness of 0.15 mm was sandwiched (referred to as a sample 2), the distance L to the bite position was 9 mm, a large force was required for F1, and the wire body was firmly gripped. In addition, a large force was also required for F2, and the wire body was firmly gripped. Therefore, it was determined that the sample 2 was suitable for gripping the wire body (Evaluation A).
As described above, when the second taper 50 was set to 1:10, some samples such as the sample 1 may not be determined to be the evaluated A, and the evaluation varied.
For the wire body 1 having the same outer diameter of φ200 μm, when the second taper 50 was set to 1:50 (2% gradient) (referred to as a sample 3), the distance L to the bite position was 9 mm, a large force was required for F1 and a medium force was required for F2, and it was determined that the sample 3 was suitable for gripping the wire body (Evaluation A).
In addition, for the wire body 1 having the same outer diameter of φ200 μm, when the second taper 50 was set to 1:150 (0.67% gradient) (referred to as a sample 4), the distance L to the bite position was 22 mm, a large force was required for F1 and a large force was also required for F2, and it was determined that the sample 4 was suitable for gripping the wire body (Evaluation A). In addition, although the sample 4 does not sandwich the shim, when the shim having a thickness of 0.15 mm was sandwiched (referred to as a sample 5), the distance L to the bite position was 2.5 mm, a large force was required for F1 and a medium force was required for F2, and it was determined that the sample 5 was suitable for gripping the wire body (Evaluation A). In the wire body 1 having an outer diameter of φ200 μm, when the second taper 50 was 1:150, although the sample was suitable for gripping the wire body regardless of a presence or absence of the shim, when there is no shim, the distance to the bite position is longer, and a long guide member is required.
Although a representation is omitted, for the wire body 1 having the same outer diameter of φ200 μm, when the second taper 50 was set to 1:200 (0.5% gradient), a large force was required for F1 and a large force was also required for F2, it was determined that the sample was suitable for gripping the wire body (Evaluation A), but a longer guide member than that in a case of 1:150 was required.
As shown in
In the wire body 1 having the same outer diameter, when the gradient was set to be the same as that of the sample 6 and the thickness of the shim was set to 0.2 mm (referred to as a sample 7), the distance L to the bite position was 0 mm, a medium force was required for F1 and a large force was required for F2, and it was determined that the sample 7 was suitable for gripping the wire body (Evaluation A).
As described above, when the second taper 50 was set to 1:20, the evaluation varied.
For the wire body 1 having the same outer diameter of φ240 μm, when the second taper 50 was set to 1:50 (2% gradient) (referred to as a sample 8), and the shim having a thickness of 0.15 mm was sandwiched, the distance L to the bite position was 10 mm, a large force was required for F1 and a medium force was required for F2, and it was determined that the sample 8 was suitable for gripping the wire body (Evaluation A). In the wire body 1 having the same outer diameter, when the gradient was set to be the same as that of the sample 8 and the thickness of the shim was set to 0.2 mm (referred to as a sample 9), the distance L to the bite position was 0 mm, a large force was required for F1 and a large force was also required for F2, and it was determined that the sample 9 was suitable for gripping the wire body (Evaluation A).
For the wire body 1 having the same outer diameter of φ240 μm, when the second taper 50 was set to 1:150 (0.67% gradient) (referred to as a sample 10), the distance L to the bite position was 25 mm, a large force was required for F1 and a large force was also required for F2, and it was determined that the sample 10 was suitable for gripping the wire body (Evaluation A). Although the sample 10 does not sandwich the shim, when the shim having a thickness of 0.15 mm was sandwiched (referred to as a sample 11), the distance L to the bite position was 3.5 mm, a large force was required for F1 and a large force was also required for F2, and it was determined that the sample 11 was suitable for gripping the wire body (Evaluation A). In the wire body 1 having an outer diameter of φ240 μm, when the second taper 50 was 1:150, although the sample was suitable for gripping the wire body regardless of the presence or absence of the shim, when there is no shim, the distance to the bite position is longer, and the long guide member is required.
As shown in
In the wire body 1 having the same outer diameter, when the gradient was set to be the same as that of the sample 12 and the thickness of the shim was set to 0.15 mm (referred to as a sample 13), the distance L to the bite position was 12.5 mm, a medium force was required for F1 and a large force was required for F2, and it was determined that the sample 13 was suitable for gripping the wire body (Evaluation A). Further, when the thickness of the shim was set to 0.2 mm (referred to as a sample 14), the distance L to the bite position was 12 mm, a large force was required for F1 and a medium force was required for F2, and it was determined that the sample 14 was suitable for gripping the wire body (Evaluation A).
For the wire body 1 having the same outer diameter of φ330 μm, when the second taper 50 was set to 1:150 (0.67% gradient) (referred to as a sample 15), the distance L to the bite position was 34 mm, a large force was required for F1 and a large force was also required for F2, and it was determined that the sample 15 was suitable for gripping the wire body (Evaluation A). Although the sample 15 does not sandwich the shim, when the shim having a thickness of 0.15 mm was sandwiched (referred to as a sample 16), the distance L to the bite position was 14 mm, a large force was required for F1 and a large force was also required for F2, and it was determined that the sample 16 was suitable for gripping the wire body (Evaluation A). In the wire body 1 having an outer diameter of φ330 μm, when the second taper 50 was 1:150, although the sample was suitable for gripping the wire body regardless of the presence or absence of the shim, when there is no shim, the distance to the bite position is longer, and the long guide member is required.
Although a representation is omitted, for the wire body 1 having the same outer diameter of φ330 μm, when the second taper 50 was set to 1:200 (0.5% gradient), a large force was required for F1 and a large force was also required for F2, it was determined that the sample was suitable for gripping the wire body (Evaluation A), but a longer guide member than that in a case 1:150 was required.
Therefore, when the second taper 50 is set in a range of 1:200 to 1:50, it is understood that the wire bodies having different thicknesses can be reliably gripped by the same locking portion 10.
In the above embodiment, the gradient was formed by providing the second taper 50 in the guide member 40. However, in the present disclosure, it is also possible to form a desired gradient by providing the taper in the base member 20, or to form the desired gradient by providing the taper in both the base member 20 and the guide member 40.
It should be understood that the embodiments disclosed herein are illustrative and non-restrictive in every respect. The scope of the present disclosure is defined not by the above description but by the scope of the claims, and is intended to include all modifications within the meaning and scope equivalent to the scope of the claims.
| Number | Date | Country | Kind |
|---|---|---|---|
| 2019-202154 | Nov 2019 | JP | national |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/JP2020/041620 | 11/6/2020 | WO |
