JPS61295973A - Winding method for optical fiber line - Google Patents

Abstract

PURPOSE:To make an optical fiber line windable in a line-up over the whole layer, by winding each guide wire in a line-up on a winding drum of a bobbin in advance, while winding up the optical fiber line in making a spiral groove between guide wires as a guide. CONSTITUTION:A guide wire 4, consisting of a tinning copper wire or the like and being 1.01-2.0 times over an optical fiber line 1 in outer diameter is stuck onto a winding drum 3 of a head-cut conical bobbin 2 at a tilt angle of 1-5 deg. and wound in a line-up via an adhesive agent at need, then both ends are locked tight. Next, at the same time that a part of the optical fiber line 1 having a resin protective layer is housed in an almost V-shaped spiral groove 5 being formed between guide wires, the first layer is wound in a line-up with this groove 5 as a guide. Then, those from the second layer downward are wound on the first layer whereby the optical fiber line 1 is windable in a line-up over multiple layers without entailing any winding disarrangement in each layer.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for winding an optical fiber onto a bobbin.

(Prior art) When winding optical fiber wire onto a bobbin, corded fibers (outer diameter of about 3 mm) and cables are thick.
Although it is easy to wind in alignment.

Since the coated core wire having an outer diameter of about 0.3 mm to 0.91 mm and having a protective layer of plastic is thin, it is not easy to wind it in an aligned manner, and winding is performed randomly by an appropriate traverse.

(Problems to be Solved by the Invention) However, when the optical fiber wire is randomly wound, the winding thickness increases, making it impossible to wind the long optical fiber wire within a limited space. In addition to increasing the size of the bobbin, when the optical fiber wire 1 is paid out in the axial direction of the bobbin 2, as shown in Fig. 2, there is a risk that the optical fiber wires will get caught and break, making it impossible to pay out at high speed. there were.

(Means for Solving the Problems) The present invention relates to a method for winding an optical fiber wire, which has been made in order to eliminate the above-mentioned drawbacks.In this invention, a guide wire is wound in alignment on a winding drum of a bobbin, and the guide wire is It is characterized by winding the optical fiber lines in an aligned manner using the spiral grooves between the lines as a guide.

(Function) By winding the guide wires in an aligned manner on the winding drum of the bobbin in this way, a spiral groove is formed between the guide wires.
While storing a portion of the optical fiber in this groove, the first layer of the optical fiber can be wound in an aligned manner using this groove as a guide, and therefore the second and subsequent layers can also be wound in an aligned manner.

(Embodiment) Next, an embodiment of the present invention will be described with reference to FIG. If necessary, attach metal wires such as tin-plated steel wires and stainless steel wires, glass fibers,
A guide wire 4 made of a nonmetallic wire made of rubber, plastic, etc. is tightly wound in alignment and fixed to a winding drum 3 or the like so that both ends do not unravel. Note that it is preferable that the guide wire has as little variation in outer diameter as possible.

Next, a part of the optical fiber line I having a plastic protective layer is accommodated in the roughly ■-shaped spiral groove 5 formed between the guide wires, and the first layer of the optical fiber line I is inserted using this groove 5 as a guide. Wind in alignment. Next, place the optical fiber line 1 on top of this layer.
By winding the second and subsequent layers, it is possible to wind the optical fiber 1 in multiple layers in an aligned manner without causing winding disorder in each layer.

During winding, if the outer diameter of the guide wire 4 is smaller than the outer diameter of the optical fiber wire J, the pitch of the spiral grooves 5 will be smaller than the outer diameter of the optical fiber wire 1, and it will not function as a guide wire. Furthermore, if the outer diameter is too large than the outer diameter of the optical fiber line l, the entire optical fiber line will be buried in the spiral groove 5, so it will not function as a guide wire, and furthermore, the outer diameter of the optical fiber line Considering fluctuations, the outer diameter of the guide wire 4 is preferably in the range of about 1.01 to 2.0 times the outer diameter of the optical fiber line 1.

Therefore, when the outer diameter of the optical fiber line 1 changes, by using the guide wire 4 having an outer diameter corresponding to this change, the optical fiber line 1 can be wound in alignment regardless of the shape of the bobbin 2.

When the optical fiber wire 1 is wound onto the bobbin 2 in this way, it can be wound in an aligned manner, so that the long wire can be stored in a limited space, and even when the optical fiber wire 1 is unwound in the bobbin axis direction, the wire can be wound in an aligned manner. Since the comrades do not get caught, there is no tangle or breakage of the wire, and smooth feeding at high speed is possible.

Next, wind the optical fiber wire under the conditions shown in the table below.
A highly releasable adhesive was applied to the lines at the ends of each layer to fix them.

In the present invention, a metal wire (tin-plated steel wire) is used as a guide wire, and the first layer is formed by winding the metal wire in an aligned manner while fixing it on the winding drum of the bobbin with an adhesive.

When optical fiber wires were wound in multiple layers on top of the layer at a speed of approximately 2 m/mlyr, even if there were gaps between the optical fiber wires or the wires overlapped, the optical fiber wires would not fit into the spiral grooves between the guide wires. Since the fibers are guided, such inconveniences can be corrected immediately, and therefore, the optical fiber wire can be wound in alignment throughout the entire layer, resulting in a good winding appearance.

On the other hand, in the comparative example, no guide wire was used.

When multiple layers of optical fiber wire are wound directly onto the winding drum of a bobbin, the optical fiber wires from the first layer slip in the axial direction of the winding drum, causing gaps between the wires and overlapping wires. It was not possible to wind the layers in an aligned manner, resulting in poor winding appearance.

(Effects of the Invention) As explained above, in the present invention, the guide wires are wound in alignment on the winding drum of the bobbin, and the optical fiber wire is wound using the spiral grooves between the guide wires as a guide. Even if a gap occurs or the wires overlap, the optical fiber wire is guided by the spiral groove between the guide wires, so such abnormal situations can be corrected immediately, and therefore the optical fiber wire can be It can be wound in an aligned manner, and a long optical fiber can be wound within the limited winding space of the bobbin, allowing the bobbin to be made smaller. Furthermore, when the optical fiber wires are fed out in the axial direction of the bobbin, the optical fiber wires do not get caught together, so there is no tangle or breakage of the wires.

High-speed and smooth unwinding of optical fiber lines is possible.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram showing an embodiment of the present invention, and FIG. 2 is an explanatory diagram showing a state in which an optical fiber wire wound by a conventional method is unwound. 1. Optical fiber wire, 2.. Bobbin, 3. Winding drum, 4..
Guide line, 5... spiral groove. Figure 1 Figure 2 Procedures Amendment (voluntary) September Z, 1985

Claims (3)

[Claims] (1) Line up the guide wire on the winding drum of the bobbin,
A method for winding an optical fiber wire, which comprises winding the optical fiber wire in an aligned manner using the spiral grooves between the guide wires as a guide. (2) Winding of the optical fiber wire according to claim 1, wherein the winding drum of the bobbin has an inclination of 1 to 5 degrees, and the guide wire is wound in alignment on the winding drum. Method. (3) As the guide wire, 1 for the outer diameter of the optical fiber wire.
．． 2. The method for winding an optical fiber wire according to claim 1, wherein a metal wire having an outer diameter of 0.01 to 2.0 times is used.