JP6620627B2 - Manufacturing method and manufacturing apparatus for optical fiber ribbon - Google Patents

Description

  The present invention relates to a method and an apparatus for manufacturing an optical fiber ribbon.

  As an optical fiber ribbon that can be easily separated into single fibers, a method of manufacturing an intermittently connected optical fiber ribbon in which adjacent optical fibers are intermittently connected in the longitudinal direction is known. For example, in Patent Document 1, an ejection port that ejects resin is provided in a partition piece that holds between optical fiber lines that run in a parallel arrangement, and the ejection amount and ejection timing of the resin are controlled to intermittently. In particular, a method for connecting optical fibers is disclosed. In Patent Document 2, an optical fiber core is intermittently pressed by pressing it onto a parallel optical fiber core wire running on a roller with an adhesive resin intermittently attached to its side surface and transferring the adhesive resin to the optical fiber core wire. A method for bonding wires together is disclosed.

Japanese Patent No. 5469044 Japanese Patent No. 5759595

  However, in the method disclosed in Patent Document 1, it is necessary to intermittently supply the resin to the discharge port provided in the partition piece. However, since the resin has viscosity, the resin has a time period in which supply and stop are repeated. Naturally there is an upper limit. For this reason, it is difficult to manufacture an intermittently connected optical fiber ribbon by running the optical fiber at a high speed, and the manufacturing cost increases because it takes a long time. Further, in the method disclosed in Patent Document 2, there is a possibility that an adhesive adheres to an unnecessary portion and a desired intermittently connected shape cannot be obtained.

  Accordingly, an object of the present invention is to manufacture an intermittently connected optical fiber ribbon in which an optical fiber core is intermittently connected to a desired shape by running at high speed without increasing the manufacturing cost. An object of the present invention is to provide a method and an apparatus for manufacturing an optical fiber ribbon.

A method of manufacturing an optical fiber ribbon according to an aspect of the present invention includes a plurality of optical fiber cores arranged in parallel to travel a pass line, and the middle of the pass line A manufacturing method for manufacturing an intermittently connected optical fiber ribbon having a step of intermittently applying an adhesive resin in a longitudinal direction between adjacent optical fiber cores and a step of curing the adhesive resin,
The step of applying the adhesive resin intermittently includes a substantially disc-shaped fiber roller that is installed in the pass line, and has a diameter that is larger than the fiber roller. The substantially circular disc-shaped partition plates in which the radius of a part of the circumferential direction is changed so that the radius is substantially the same at the same angular position as the small radius portion of the fiber roller that sandwiches both sides are alternately stacked. The
The two fiber rollers sandwiching both sides of the part of the partition plate where the radius is changed, the angular positions of the parts having a small radius coincide, and the adhesive resin transport roller is not cured while being rotated. After immersing in resin and holding the adhesive resin in a small radius part of the fiber roller,
By causing the optical fiber core wire to travel along the pass line while being in contact with the fiber roller, an adhesive resin is intermittently provided in the longitudinal direction between adjacent optical fiber core wires of the plurality of optical fiber core wires. It is a process of applying.

An apparatus for manufacturing an optical fiber ribbon according to an aspect of the present invention includes a plurality of optical fiber cores arranged in parallel to travel a pass line, and the middle of the pass line A manufacturing apparatus for manufacturing an intermittently connected optical fiber ribbon having an apparatus for intermittently applying an adhesive resin in the longitudinal direction between adjacent optical fiber cores and an apparatus for curing the adhesive resin,
The device for applying the adhesive resin intermittently,
A substantially disc-shaped fiber roller installed in the pass line, the radius of which is partly changed, and a portion having a smaller radius than the fiber roller and having a smaller radius than the fiber roller, A substantially disc-shaped partition plate in which a part of the radius in the circumferential direction is changed so as to have substantially the same radius at the same angular position; and an adhesive resin transport roller formed by alternately laminating;
And adhesive resin tank for storing the adhesive resin, Ri Tona,
The two fiber rollers sandwiching both sides of the part where the radius of the partition plate changes, the angular positions of the parts with a small radius match,
When the adhesive resin transport roller rotates, a part of the adhesive resin transport roller is immersed in the adhesive resin stored in the adhesive resin tank, thereby holding the adhesive resin in a small radius part of the fiber roller, By causing the optical fiber core wire to travel along the pass line while being in contact with the fiber roller, an adhesive resin is intermittently provided in the longitudinal direction between adjacent optical fiber core wires of the plurality of optical fiber core wires. Apply.

  According to the present invention, it is possible to manufacture an intermittently connected type optical fiber ribbon in which an optical fiber core is run at a high speed and intermittently connected to a desired shape without increasing the manufacturing cost.

It is the schematic of the manufacturing apparatus of the optical fiber tape cable core which concerns on embodiment. It is a figure which shows the structure of an adhesive resin conveyance roller and an adhesive resin tank, (a) is a top view, (b) is GG sectional drawing. It is a top view which shows the structure of a fiber roller and a partition plate. It is each sectional drawing of the area | region A to F explaining application | coating of adhesive resin by rotation of an adhesive resin conveyance roller. It is a top view of the some optical fiber core wire with which adhesive resin was apply | coated intermittently with the desired space | interval between lines. It is sectional drawing of FIG. It is a top view which shows the structure of the fiber roller and partition plate of a modification. It is each sectional drawing of the area | regions A to F explaining application | coating of the adhesive resin by rotation of the adhesive resin conveyance roller using the fiber roller and partition plate of a modification.

[Description of Embodiment of the Present Invention]
First, embodiments of the present invention will be listed and described.
The manufacturing method of the optical fiber ribbon according to the embodiment of the present invention,
(1) A plurality of optical fiber cores are arranged in parallel to travel a pass line, and intermittently in the longitudinal direction between adjacent ones of the plurality of optical fiber cores in the middle of the pass line. A manufacturing method for manufacturing an intermittently connected optical fiber ribbon having a step of applying an adhesive resin and a step of curing the adhesive resin,
The step of applying the adhesive resin intermittently includes a substantially disc-shaped fiber roller that is installed in the pass line, and has a diameter that is larger than the fiber roller. The substantially circular disc-shaped partition plates in which the radius of a part of the circumferential direction is changed so that the radius is substantially the same at the same angular position as the small radius portion of the fiber roller that sandwiches both sides are alternately stacked. The
The two fiber rollers sandwiching both sides of the part of the partition plate where the radius is changed, the angular positions of the parts having a small radius coincide, and the adhesive resin transport roller is not cured while being rotated. After immersing in resin and holding the adhesive resin in a small radius part of the fiber roller,
By causing the optical fiber core wire to travel along the pass line while being in contact with the fiber roller, an adhesive resin is intermittently provided in the longitudinal direction between adjacent optical fiber core wires of the plurality of optical fiber core wires. It is a process of applying.

According to the manufacturing method of the optical fiber ribbon of the above (1), in the adhesive resin transport roller, the radius of the partition plate of the adhesive resin transport roller is between some or all of the optical fiber cores during running. By rotating the adhesive resin transport roller while sandwiching the large portion, the adhesive resin remaining in the portion having a small radius of the fiber roller is applied to the optical fiber core wire. The applied adhesive resin is cured by a resin curing device, whereby an intermittently connected optical fiber ribbon that is intermittently connected to a desired shape is obtained.
In addition, since the position of the optical fiber core wire is fixed by the adhesive resin transport roller, a precise mechanism for increasing the positioning accuracy is not necessary.
In addition, since the adhesive resin is only supplied by immersing it in an uncured adhesive resin while rotating the adhesive resin transport roller, there is no need for a mechanism for intermittently supplying the adhesive resin. Resin can be applied intermittently while running at high speed.
Therefore, it is possible to manufacture an intermittently connected optical fiber ribbon in which an optical fiber is run at a high speed and intermittently connected to a desired shape without increasing the manufacturing cost.

(2) In the method of manufacturing an optical fiber ribbon according to (1), a porous member is provided at least at a part of the outer peripheral portion of the adhesive resin transport roller among the portions having a small radius of the adhesive resin transport roller. .
Since a porous member is provided in at least a part of a portion having a small radius of the adhesive resin transport roller, the adhesive resin is securely applied to a desired portion of the optical fiber core wire by holding the adhesive resin with the porous member. Can be applied. Since the adhesive resin soaks into the porous member and is held, the resin does not scatter even when rotated at a high speed, and the traveling speed of the optical fiber core can be further increased.

(3) In the method for manufacturing an optical fiber ribbon according to (1) or (2), the adhesive resin transport roller is driven by power to rotate.
Since the adhesive resin transport roller is driven by power, the intermittent connection pitch can be arbitrarily changed without changing the diameter of the roller.

(4) In the method for manufacturing an optical fiber ribbon of (3), a sensor that detects a traveling speed of the optical fiber core is disposed on the upstream side of the pass line from the adhesive resin transport roller,
The rotational speed of the adhesive resin transport roller is controlled using information on the traveling speed detected by the sensor.
By detecting the running speed of the tape core and controlling the rotation speed of the adhesive resin transport roller based on that information, the desired intermittent connection pitch can be stabilized even if the running speed of the optical fiber core fluctuates. Can be realized.

(5) In the method for manufacturing an optical fiber ribbon according to (1) or (2), the adhesive resin transport roller is not driven by power but rotates by friction between the optical fiber core and the roller.
By rotating the adhesive resin transport roller by friction with the tape core wire without being driven by power, slippage between the roller and the optical fiber core wire is minimized, and damage to the surface of the tape core wire can be suppressed. In addition, even if the traveling speed of the optical fiber core wire changes, the rotational speed of the roller also changes accordingly, so that the intermittent connection pitch is stabilized.

An apparatus for manufacturing an optical fiber ribbon according to an embodiment of the present invention,
(6) A plurality of optical fiber cores are arranged in parallel and run along a pass line, and intermittently in the longitudinal direction between adjacent optical fiber cores of the plurality of optical fiber cores in the middle of the pass line. A manufacturing apparatus for manufacturing an intermittently connected optical fiber ribbon having an apparatus for applying an adhesive resin and an apparatus for curing the adhesive resin,
The device for applying the adhesive resin intermittently,
A substantially disc-shaped fiber roller installed in the pass line, the radius of which is partly changed, and a portion having a smaller radius than the fiber roller and having a smaller radius than the fiber roller, A substantially disc-shaped partition plate in which a part of the radius in the circumferential direction is changed so as to have substantially the same radius at the same angular position; and an adhesive resin transport roller formed by alternately laminating;
And adhesive resin tank for storing the adhesive resin, Ri Tona,
The two fiber rollers sandwiching both sides of the part where the radius of the partition plate changes, the angular positions of the parts with a small radius match,
When the adhesive resin transport roller rotates, a part of the adhesive resin transport roller is immersed in the adhesive resin stored in the adhesive resin tank, thereby holding the adhesive resin in a small radius part of the fiber roller, By causing the optical fiber core wire to travel along the pass line while being in contact with the fiber roller, an adhesive resin is intermittently provided in the longitudinal direction between adjacent optical fiber core wires of the plurality of optical fiber core wires. Apply.

According to the optical fiber tape core manufacturing apparatus of (6) above, in the adhesive resin transport roller, the radius of the partition plate of the adhesive resin transport roller is between some or all of the optical fiber core wires during running. When the large portion is inserted and the adhesive resin transport roller rotates, the adhesive resin remaining in the small radius portion of the fiber roller is applied to the optical fiber core wire. The applied adhesive resin is cured by a resin curing device, whereby an intermittently connected optical fiber ribbon that is intermittently connected to a desired shape is obtained.
In addition, since the position of the optical fiber core wire is fixed by the adhesive resin transport roller, a precise mechanism for increasing the positioning accuracy is not necessary.
In addition, since the adhesive resin is only supplied by immersing it in an uncured adhesive resin while rotating the adhesive resin transport roller, there is no need for a mechanism for intermittently supplying the adhesive resin. Resin can be applied intermittently while running at high speed.
Therefore, it is possible to manufacture an intermittently connected optical fiber ribbon in which an optical fiber is run at a high speed and intermittently connected to a desired shape without increasing the manufacturing cost.

(7) In the optical fiber tape core manufacturing apparatus according to (6), a porous member is provided at least at a part of the outer peripheral portion of the adhesive resin transport roller among the portions having a small radius of the adhesive resin transport roller. .
Since a porous member is provided in at least a part of a portion having a small radius of the adhesive resin transport roller, the adhesive resin is securely applied to a desired portion of the optical fiber core wire by holding the adhesive resin with the porous member. Can be applied. Since the adhesive resin is soaked and held in the porous member, the resin does not scatter even when rotated at a high speed, and the traveling speed of the optical fiber core can be further increased.

(8) The optical fiber tape core manufacturing apparatus according to (6) or (7), further comprising a drive unit that rotates the adhesive resin transport roller.
Since the adhesive resin transport roller is driven by the drive unit, the intermittent connection pitch can be arbitrarily changed without changing the diameter of the roller.

(9) In the optical fiber ribbon manufacturing apparatus according to (8), a sensor that is disposed on the upstream side of the pass line with respect to the adhesive resin transport roller and detects a traveling speed of the optical fiber;
A control unit is provided that controls the drive unit using information on the traveling speed detected by the sensor.
The traveling speed of the optical fiber core wire can be detected by the sensor, and the rotation speed of the adhesive resin transport roller can be controlled by the control unit based on the traveling speed information. Thereby, even if the running speed of the optical fiber core wire fluctuates, a desired intermittent connection pitch can be stably realized.

(10) In the optical fiber ribbon manufacturing apparatus according to (6) or (7), the adhesive resin transport roller is installed to rotate by friction with the optical fiber.
Since the adhesive resin transport roller is installed so as to rotate due to friction with the optical fiber core, slip between the roller and the optical fiber core is minimized, and damage to the surface of the tape core can be suppressed. Further, even if the traveling speed of the optical fiber core wire changes, the rotational speed of the adhesive resin transport roller also changes accordingly, so that the intermittent connection pitch is stabilized. In addition, since an apparatus for driving the adhesive resin transport roller is not required, a more inexpensive apparatus configuration is possible.

[Details of the embodiment of the present invention]
Specific examples of a method and an apparatus for manufacturing an optical fiber ribbon according to an embodiment of the present invention will be described below with reference to the drawings.
In addition, this invention is not limited to these illustrations, is shown by the claim, and intends that all the changes within the meaning and range equivalent to a claim are included.

  FIG. 1 is a schematic configuration diagram of an optical fiber ribbon manufacturing apparatus 1 according to this embodiment. An optical fiber ribbon manufacturing apparatus 1 includes a supply bobbin group 2, a sensor 3, a control unit 4, a drive unit 5, an upstream alignment correction roller 6, an adhesive resin transport roller 7, an adhesive resin tank 8, a resin removal member 9, It is comprised by the downstream arrangement | sequence correction roller 10, the resin hardening apparatus 11, and the winding bobbin 12. FIG.

  The supply bobbin group 2 includes a plurality of supply bobbins 2a to 2d, and optical fiber cores 21 to 24 are wound around the supply bobbins 2a to 2d. The plurality of optical fiber core wires 21 to 24 are supplied from the supply bobbins 2 a to 2 d so as to have the same traveling speed, and the traveling speed is detected by the sensor 3, for example. Information on these traveling speeds is transmitted to the control unit 4.

  The upstream arrangement correction roller 6 is provided for arranging a plurality of optical fiber core wires 21 to 24 in parallel. By passing through this upstream side alignment correction roller 6, the plurality of optical fiber cores 21 to 24 traveling along the pass line P are corrected so as to be in parallel alignment.

  The control part 4 controls the drive part 5 based on the information of the traveling speed of the optical fiber core wires 21-24, for example. The drive unit 5 drives the adhesive resin transport roller 7. The adhesive resin transport roller 7 is a roller for applying the uncured adhesive resin 8 a stored in the adhesive resin tank 8 between the optical fiber core wires 21 to 24 at a desired interval. Details of how the adhesive resin is applied by the adhesive resin transport roller 7 will be described later.

  The downstream side alignment correction roller 10 keeps the parallel alignment until the optical fiber core wires 21 to 24 coated with the adhesive resin at a desired interval between the lines are sent to the resin curing device 11 by the adhesive resin transport roller 7. To correct.

The resin curing device 11 is a device for curing the adhesive resin 8a (for example, when the adhesive resin 8a is an ultraviolet curable resin, it is an ultraviolet irradiation device or the like).
The winding bobbin 12 is a roller for winding the manufactured intermittently connected optical fiber ribbon 20.

  Next, in the present embodiment, a method for applying the adhesive resin 8a by the adhesive resin transport roller 7 will be described in detail with reference to the drawings. FIG. 2 is a configuration diagram of the adhesive resin transport roller 7 and the adhesive resin tank 8.

  As shown in FIGS. 1 and 2, a part of the adhesive resin transport roller 7 is immersed in an uncured adhesive resin 8 a (for example, a liquid ultraviolet curable resin) stored in the adhesive resin tank 8. It is installed so that.

  As shown in FIG. 2B, the adhesive resin transport roller 7 has a disk-like fiber roller 72 (72 a to 72 d) in which a part of the radius in the circumferential direction is changing, and a diameter larger than that of the fiber roller 72. A disk-like partition plate 73 (73a to 73a) whose radius is partially changed so as to have a small diameter portion 73S which is large and has a radius substantially the same as that of the small portion (small diameter portion 72S) of the fiber roller 72. 73c) and are stacked alternately. In addition, the partition plate 73 has the small diameter part 73S in the same angular position where the fiber roller 72 of the both sides which pinches | interposes the partition plate 73 becomes the small diameter part 72S. Furthermore, the outer surfaces of the fiber rollers 72a and 72d at both ends are respectively sandwiched between disc-shaped guide rollers 71 (71a and 71b).

  The adhesive resin transport roller 7 is driven by, for example, the drive unit 5 so as to rotate in the direction indicated by the arrow H in FIG. That is, a part of the adhesive resin transport roller 7 is immersed in the adhesive resin 8a of the adhesive resin tank 8 from the right side of FIG. 2A and rotates so as to go out of the adhesive resin tank 8 from the left side.

  Further, for example, on the upper left side of the adhesive resin tank 8, when the adhesive resin transport roller 7 goes out of the adhesive resin tank 8, a portion where the radius of the fiber roller 72 (72a to 72d) is large (large diameter portion 72L). A resin removing member 9 (for example, a spatula-like member) is provided to remove the adhesive resin 8a by being pressed against the peripheral edge portion.

Next, the structure of each fiber roller 72a-72d and each partition plate 73a-73c is demonstrated with reference to FIG.
As shown in FIG. 3, in the fiber roller 72a, the region A is a small diameter portion 72S, and the regions B to F are large diameter portions 72L. In the fiber roller 72b, regions A and E have a small diameter portion 72S, and regions B, C, D, and F have a large diameter portion 72L. In the fiber roller 72c, regions C and E are small-diameter portions 72S, and regions A, B, D, and F are large-diameter portions 72L. In the fiber roller 72d, the region C is a small diameter portion 72S, and the regions A, B, D, E, and F are large diameter portions 72L.

  Moreover, as for the partition plate 73a, the area | region A becomes the small diameter part 73S, and the area | regions B-F become the large diameter part 73L. In the partition plate 73b, the region E is a small diameter portion 73S, and the regions A to D and F are large diameter portions 73L. In the partition plate 73c, the region C is a small diameter portion 73S, and the regions A, B, and D to F are large diameter portions 73L.

  For example, as an example of the size of the fiber roller 72 (72a to 72d), the diameter of the large diameter portion 72L is 31.5 mm, the thickness is 0.25 mm, and the diameter of the small diameter portion 72S is 31.2 mm. As an example of the size of the partition plate 73 (73a to 73c), the diameter of the large diameter portion 73L is 32.0 mm, the thickness is 0.1 mm, and the diameter of the small diameter portion 73S is 31.2 mm. In this case, the circumference of the large diameter portion of the fiber roller is about 100 mm.

Also, the intermittent connection pitch of the optical fiber ribbons to be manufactured (the sum of the lengths of the connected parts between the two adjacent optical fiber cores and the lengths of the unconnected parts) is the fiber It becomes equal to the circumferential length of the large diameter part of the roller.
Further, the length of the connecting portion and the length of the non-connecting portion between two adjacent adjacent optical fiber core wires (for example, between the optical fiber core wires 21 and 22, respectively, the length of the portion A in FIG. , E, F length) is the region A (for example, angle θ1 = 72 °) where the small diameter portions 72S and 73S are provided in the partition plate 73a and the fiber rollers 72a and 72b in FIG. It can be set by the length in the circumferential direction with respect to the region (360 ° −θ1 = 288 °). For example, as described above, when the circumference of the large-diameter portion of the fiber roller is about 100 mm and the angle θ1 = 72 °, the connecting portion length (the length of the region A) is 20 mm, and the non-connecting portion length (the region B). , C, D, E, and F) is 80 mm.

  Next, a manufacturing method for manufacturing an intermittently connected optical fiber tape 20 that is intermittently connected in a desired shape using the optical fiber tape core manufacturing apparatus 1 of the present embodiment will be described. FIG. 4 is a cross-sectional view of regions A to F for explaining the application of the adhesive resin 8 a by the rotation of the adhesive resin transport roller 7.

  As shown in FIG. 1, the plurality of optical fiber core wires 21 to 24 are arranged in parallel by the upstream side alignment correction roller 6 and sent to the adhesive resin transport roller 7. In the adhesive resin transport roller 7, as shown in FIG. 4, the regions A to F of the partition plate 73 (73a to 73c) are inserted between the optical fiber core wires 21 to 24 with the rotation of the adhesive resin transport roller 7. It is inserted in order.

  In the region A, the fiber rollers 72a and 72b each have a small diameter portion 72S. Further, the partition plate 73a between the fiber rollers 72a and 72b also has a small diameter portion 73S in the region A. For this reason, there is no partition between the fiber rollers 72a and 72b, and the optical fiber core wires 21 and 22 are in close contact with each other. Further, since the resin removing member 9 does not reach the small diameter portions 72S and 73S, the adhesive resin 8a remains, and the adhesive resin 8a is applied between the optical fiber core wires 21 and 22 that are in close contact with each other.

  On the other hand, in the region A, since the fiber rollers 72c and 72d have large diameter portions, the resin removing member 9 is pressed and the adhesive resin 8a is removed. Further, the partition plates 73b and 73c are also large diameter portions, the partition plate 73b is sandwiched between the optical fiber core wires 22 and 23, and the partition plate 73c is sandwiched between the optical fiber core wires 23 and 24. For this reason, the adhesive resin 8a is not applied between the optical fiber core wires 22 and 23 and between the optical fiber core wires 23 and 24.

  In the region B, since the fiber rollers 72a to 72d have a large diameter portion, the resin removing member 9 is pressed and the adhesive resin 8a is removed. Moreover, since the partition plates 73a-73c are also large diameter parts, the partition plates 73a-73c are inserted | pinched between each optical fiber core wire. Therefore, the adhesive resin 8a is not applied to each optical fiber core wire.

  In the region C, the fiber rollers 72c and 72d each have a small diameter portion 72S. In addition, the partition plate 73c between the fiber rollers 72c and 72d also has a small diameter portion 73S in the region C. For this reason, there is no partition between the fiber rollers 72c and 72d, and the optical fiber core wires 23 and 24 are in close contact with each other. Further, since the resin removing member 9 does not reach the small diameter portions 72S and 73S, the adhesive resin 8a remains, and the adhesive resin 8a is applied between the optical fiber cores 23 and 24 that are in close contact with each other.

  On the other hand, in the region C, since the fiber rollers 72a and 72b have large diameter portions, the resin removing member 9 is pressed and the adhesive resin 8a is removed. The partition plates 73a and 73b are also large-diameter portions, and the partition plate 73a is sandwiched between the optical fiber core wires 21 and 22, and the partition plate 73b is sandwiched between the optical fiber core wires 22 and 23. For this reason, the adhesive resin 8a is not applied between the optical fiber cores 21 and 22 and between 22 and 23.

  In the region D, as in the region B, the fiber rollers 72a to 72d are large-diameter portions, so that the resin removing member 9 is pressed and the adhesive resin 8a is removed. Moreover, since the partition plates 73a-73c are also large diameter parts, the partition plates 73a-73c are inserted | pinched between each optical fiber core wire. Therefore, the adhesive resin 8a is not applied to each optical fiber core wire.

  In the region E, the fiber rollers 72b and 72c each have a small diameter portion 72S. Further, the partition plate 73b between the fiber rollers 72b and 72c also has a small diameter portion 73S in the region E. For this reason, there is no partition between the fiber rollers 72b and 72c, and the optical fiber core wires 22 and 23 are in close contact with each other. Further, since the resin removing member 9 does not reach the small diameter portions 72S and 73S, the adhesive resin 8a remains, and the adhesive resin 8a is applied between the optical fiber core wires 22 and 23 that are in close contact with each other.

  On the other hand, in the region E, since the fiber rollers 72a and 72d have large diameter portions, the resin removing member 9 is pressed and the adhesive resin 8a is removed. In addition, the partition plates 73a and 73c are also large diameter portions, the partition plate 73a is sandwiched between the optical fiber core wires 21 and 22, and the partition plate 73c is sandwiched between the optical fiber core wires 23 and 24. For this reason, the adhesive resin 8a is not applied between the optical fiber core wires 21 and 22 and between 23 and 24.

  In the region F, as in the regions B and D, the fiber rollers 72a to 72d are large-diameter portions, so that the resin removing member 9 is pressed and the adhesive resin 8a is removed. Moreover, since the partition plates 73a-73c are also large diameter parts, the partition plates 73a-73c are inserted | pinched between each optical fiber core wire. Therefore, the adhesive resin 8a is not applied to each optical fiber core wire.

When the adhesive resin transport roller 7 makes one rotation, the application of the adhesive resin 8a in the areas A to F is performed again, and the process is repeated thereafter.
The optical fiber cores 21 to 24 to which the adhesive resin 8a is applied by the adhesive resin transport roller 7 are in a state in which the adhesive resin is intermittently applied at a desired interval between the lines as shown in FIGS. , And sent to the downstream side alignment correction roller 10.
By passing through the downstream side alignment correction roller 10, the optical fiber core wires 21 to 24 are corrected to a parallel alignment and sent to the resin curing device 11.

  The optical fiber cores 21 to 24 corrected to the parallel arrangement are cured by the resin curing device 11 with the applied adhesive resin 8a (for example, when the adhesive resin 8a is an ultraviolet curable resin) The adhesive resin 8a is cured by irradiating the wires 21 to 24 with ultraviolet rays from the resin curing device 11).

  The optical fiber cores 21 to 24 in which the adhesive resin 8a is cured by the resin curing device 11 are intermittently connected optical fiber tape cores that are intermittently connected in a desired shape with the application portion of the adhesive resin 8a serving as a connecting portion. 20 is wound on the winding bobbin 12.

As described above, according to the manufacturing apparatus 1 and the manufacturing method of the optical fiber ribbon according to the embodiment described in detail,
The adhesive resin 8a is removed from the large diameter portion 72L of the fiber roller 72 by the pressed resin removing member 9, but the adhesive resin 8a remains in the small diameter portion 72S of the fiber roller 72. Adhesive resin remaining on the small diameter portion 72S of the fiber roller 72 when the partition plate 73 of the adhesive resin transport roller 7 is sandwiched between the traveling optical fiber cores 21 to 24 and the adhesive resin transport roller 7 rotates. 8a is applied to the optical fiber core wires 21 to 24. The applied adhesive resin 8a is cured by the resin curing device 11 to obtain an intermittently connected optical fiber ribbon 20 that is intermittently connected to a desired shape.

  Further, since the positions of the optical fiber core wires 21 to 24 are fixed by the adhesive resin transport roller 7, a precise mechanism for increasing the positioning accuracy is not necessary. Further, since the adhesive resin 8a is only supplied by being immersed in the uncured adhesive resin 8a while rotating the adhesive resin transport roller 7, there is no need for a mechanism for intermittently supplying the adhesive resin 8a. The resin can be applied intermittently while running the fiber core wires 21 to 24 at a high speed. Therefore, it is possible to manufacture the intermittently connected optical fiber ribbon 20 in which the optical fiber cores 21 to 24 are run at high speed and intermittently connected to a desired shape without increasing the manufacturing cost.

  In addition, since the drive unit 5 for rotating the adhesive resin transport roller 7 is provided and the adhesive resin transport roller 7 is driven by power, the intermittent connection pitch of the optical fiber ribbon 20 can be set without changing the diameter of the roller. It can be changed arbitrarily.

  Further, a sensor 3 for detecting the traveling speed of the optical fiber cores 21 to 24 is arranged on the upstream side of the pass line P with respect to the adhesive resin transport roller 7, and the information on the traveling speed detected by the sensor 3 is used for bonding. The rotational speed of the resin transport roller 7 may be controlled. In this case, the desired intermittent connection pitch of the optical fiber ribbon 20 is stably realized even if the traveling speed of the optical fibers 21 to 24 fluctuates. it can.

The adhesive resin transport roller 7 may be installed so as to be rotated by friction with the plurality of optical fiber cores 21 to 24 without being driven by the drive unit 5.
In this case, since the adhesive resin transport roller 7 is not driven by power and is rotated by friction with the plurality of optical fiber cores 21 to 24, the slip between the roller and the optical fiber core wire is minimized, and the optical fiber core wire The surface is prevented from being damaged. Further, even if the traveling speed of the optical fiber cores 21 to 24 is changed, the rotational speed of the adhesive resin transport roller 7 is also changed, so that the intermittent connection pitch is stabilized.

  In the above-described embodiment, the plurality of optical fiber cores have four optical fibers. However, if there are a plurality of optical fiber cores, the number of optical fiber cores may be other than four. The configuration is adapted to the number of the core wires (the number of fiber rollers 72 and partition plates 73 is adjusted). Moreover, although the partition plate 73 was divided | segmented into the area | region of AF, the number of area | regions and the method of division | segmentation may be other than this.

  Moreover, in the said embodiment, even if it equips at least one part of the small diameter part 72S of the fiber roller 72, and the small diameter part 73S of the partition plate 73, the porous member 74 (for example, foaming polyethylene foam etc.) for holding adhesive resin is provided. Good.

  For example, as shown in FIG. 7, the porous member 74 is provided in the small diameter part 72S of the fiber roller 72 (72a). In this case, the diameter of the small diameter portion 72S may be smaller than that in the above embodiment. The small diameter portion 73S of the partition plate 73 (73a) is also the same size. Further, the porous member 74 may be provided also in the small diameter portion 73S of the partition plate 73 (73a).

  For example, as an example of the size of the fiber roller 72 (72a to 72d), the diameter of the large diameter portion 72L is 31.5 mm, the thickness is 0.25 mm, and the diameter of the small diameter portion 72S is 29.5 mm. As an example of the size of the partition plate 73 (73a to 73c), the diameter of the large diameter portion is 32.0 mm, the thickness is 0.1 mm, and the diameter of the small diameter portion 73S is 29.5 mm.

FIG. 8 is a cross-sectional view illustrating the application of the adhesive resin 8a by the rotation of the adhesive resin transport roller 7 using the fiber roller 72 and the partition plate 73 of the modification.
In the example shown in FIG. 8, the porous member 74 is partitioned on the fiber roller 72a, the partition plate 73a, and the fiber roller 72b in, for example, the region A in a state where the fiber roller 72 and the partition plate 73 are alternately stacked and incorporated. It is inserted so as to be sandwiched between the plate 73b and the guide roller 71a. In the region C, the porous member 74 is inserted between the partition plate 73b and the guide roller 71b on the fiber roller 72c, the partition plate 73c, and the fiber roller 72d. In the region E, the porous member 74 is inserted between the partition plate 73a and the partition plate 73c on the fiber roller 72b, the partition plate 73b, and the fiber roller 72c.

In the example shown in FIG. 8, when the optical fiber cores 21 to 24 are pressed against the porous member 74, the adhesive resin 8 a oozes out from the porous member 74 and is applied to the surfaces of the optical fiber cores 21 to 24. The
In the case of FIG. 8 as well, as in the case of the present embodiment described in FIG. 4, the adhesive resin 8 a is applied between the optical fiber core wires 21 to 24 with the rotation of the adhesive resin transport roller 7. Can do.

  In the case of the above modification, since the adhesive resin 8a is soaked and held in the porous member 74, the adhesive resin 8a can be prevented from scattering even when the adhesive resin transport roller 7 is rotated at a higher speed. The traveling speed of the fiber core wires 21 to 24 can be further increased.

DESCRIPTION OF SYMBOLS 1 Manufacturing apparatus 2 Supply bobbin group 2a-2d Supply bobbin 3 Sensor 4 Control part 5 Drive part 6 Upstream side alignment correction roller 7 Adhesive resin conveyance roller 8 Adhesive resin tank 8a Adhesive resin 9 Resin removal member 10 Downstream side alignment correction roller 11 Resin Curing device 12 Winding bobbin 20 Optical fiber tape core wire 21-24 Optical fiber core wire 71, 71a, 71b Guide roller 72, 72a-72d Fiber roller 72S, 73S Small diameter portion (small radius portion)
72L, 73L Large diameter part (large radius part)
73, 73a-73c Partition plate 74 Porous member

Claims (10)

A plurality of optical fiber cores are arranged in parallel and run along a pass line, and in the middle of the pass line, an adhesive resin is intermittently disposed in the longitudinal direction between adjacent optical fiber core wires of the plurality of optical fiber core wires. A manufacturing method for manufacturing an intermittently connected optical fiber ribbon having a step of applying and a step of curing the adhesive resin,
The step of applying the adhesive resin intermittently includes a substantially disc-shaped fiber roller that is installed in the pass line, and has a diameter that is larger than the fiber roller. The substantially circular disc-shaped partition plates in which the radius of a part of the circumferential direction is changed so that the radius is substantially the same at the same angular position as the small radius portion of the fiber roller that sandwiches both sides are alternately stacked. The
The two fiber rollers sandwiching both sides of the part of the partition plate where the radius is changed, the angular positions of the parts having a small radius coincide, and the adhesive resin transport roller is not cured while being rotated. After immersing in resin and holding the adhesive resin in a small radius part of the fiber roller,
By causing the optical fiber core wire to travel along the pass line while being in contact with the fiber roller, an adhesive resin is intermittently provided in the longitudinal direction between adjacent optical fiber core wires of the plurality of optical fiber core wires. A method for manufacturing an intermittently connected optical fiber ribbon, which is a coating step.   The manufacturing method of the optical fiber tape core wire of Claim 1 provided with the porous member at least in part of the outer peripheral part of the said adhesive resin conveyance roller among the parts with a small radius of the said adhesive resin conveyance roller.   The optical fiber tape core manufacturing method according to claim 1, wherein the adhesive resin transport roller is driven by power to rotate. A sensor for detecting the traveling speed of the optical fiber core wire is disposed on the upstream side of the pass line from the adhesive resin transport roller,
The manufacturing method of the optical fiber ribbon of Claim 3 which controls the rotational speed of the said adhesive resin conveyance roller using the information of the running speed which the said sensor detected.   3. The method of manufacturing an optical fiber ribbon according to claim 1, wherein the adhesive resin transport roller is rotated by friction between the optical fiber and the roller without being driven by power. 4. A plurality of optical fiber cores are arranged in parallel and run along a pass line, and in the middle of the pass line, an adhesive resin is intermittently disposed in the longitudinal direction between adjacent optical fiber core wires of the plurality of optical fiber core wires. A manufacturing apparatus for manufacturing an intermittently connected optical fiber ribbon having an apparatus for applying and an apparatus for curing the adhesive resin,
The apparatus for applying the adhesive resin intermittently,
A substantially disc-shaped fiber roller installed in the pass line, the radius of which is partly changed, and a portion having a smaller radius than the fiber roller and having a smaller radius than the fiber roller, A substantially disc-shaped partition plate in which a part of the radius in the circumferential direction is changed so as to have substantially the same radius at the same angular position; and an adhesive resin transport roller formed by alternately laminating;
And adhesive resin tank for storing the adhesive resin, Ri Tona,
The two fiber rollers sandwiching both sides of the part where the radius of the partition plate changes, the angular positions of the parts with a small radius match,
When the adhesive resin transport roller rotates, a part of the adhesive resin transport roller is immersed in the adhesive resin stored in the adhesive resin tank, thereby holding the adhesive resin in a small radius part of the fiber roller, By causing the optical fiber core wire to travel along the pass line while being in contact with the fiber roller, an adhesive resin is intermittently provided in the longitudinal direction between adjacent optical fiber core wires of the plurality of optical fiber core wires. Apply,
Equipment for manufacturing intermittently connected optical fiber ribbons.   The manufacturing apparatus of the optical fiber ribbon of Claim 6 provided with the porous member in at least one part of the outer peripheral part of the said adhesive resin conveyance roller among the parts with a small radius of the said adhesive resin conveyance roller.   The manufacturing apparatus of the optical fiber ribbon of Claim 6 or 7 provided with the drive part which rotates the said adhesive resin conveyance roller. A sensor that is disposed on the upstream side of the pass line from the adhesive resin transport roller and detects a traveling speed of the optical fiber core;
The manufacturing apparatus of the optical fiber ribbon of Claim 8 provided with the control part which controls the said drive part using the information of the said traveling speed detected by the said sensor.   The said adhesive resin conveyance roller is a manufacturing apparatus of the optical fiber tape core wire of Claim 6 or Claim 7 installed so that it may rotate by friction with the said optical fiber core wire.

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