JP2806327B2 - Wire bobbin and wire rod processing method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire winding machine, and more particularly to a wire winding bobbin designed for use in a wire manufacturing facility for automatically changing a bobbin, and to evaluate the performance of the wire. The present invention relates to a method of drawing out an end.

[0002]

2. Description of the Related Art Optical fibers are subjected to various inspections after production in order to guarantee their quality. Among the inspection items, the transmission loss is measured by measuring the intensity of light emitted from one end of the optical fiber and the intensity of light emitted from the other end. For this reason, it is necessary that both ends of the optical fiber can be taken out while the optical fiber is wound on the bobbin.

FIG. 7 is an explanatory view of an example of a conventional bobbin. FIG. 7 (a) is a perspective view of the bobbin, and FIG. 7 (b) is a perspective view of a state where an optical fiber is wound around the bobbin of FIG. It is. The conventional bobbin has a simple structure including two flanges 1-1 and 1-2 and a body 4-1. Then, as shown in FIG. 7B, the winding start 7-1 and the winding end 7-2 of the optical fiber 7 are taped inside the flanges 1-1 and 1-2, respectively, so that both ends can be taken out. However, in this method, the optical fiber on the winding start end 7-1 side cannot be extended long.

For this reason, in recent years, as shown in FIG. 6 (a), a bobbin having a main winding portion 20 and a lead winding portion 19 interposed between intermediate flanges 2 provided with slits 8 and 9 in a direction perpendicular to the bobbin axis is used. As shown in FIG. 6B, several m from the winding start end
After winding up to several tens of meters around the lead winding portion 19, the bobbin has a structure in which both ends of the optical fiber 7 can be easily taken out to a required length by moving to the main winding portion 20 through the slit 8. (Japanese Utility Model Laid-Open No. 5-85505). On the other hand, as the production volume of optical fibers increases, automatic operation of optical fiber manufacturing equipment is becoming an important issue in order to increase productivity. For example, in a bobbin having an intermediate flange provided with a slit as described above, an improvement has been made to automate the work over the slit in which the running of the optical fiber has been temporarily stopped (Japanese Patent Laid-Open No. 64-383).
No. 79).

[0005]

By the way, when such a bobbin is used, automation is realized, but after the wire 7 is wound around the lead winding portion 19, the wound wire is fully wound through the slit 8. Since the process proceeds to the section 20, as shown in FIG. In this state, since the winding start end 7-1 cannot be directly pulled out,
It becomes necessary to rewind the winding start end 7-1 every one rotation. This required a long time and reduced productivity. Therefore, an object of the present invention is to provide a wire rod bobbin and a method for treating a wire rod that have solved the above problems.

[0006]

A wire bobbin according to the present invention is provided with a lead winding portion for winding a winding start end of a wire material with a main winding portion and an intermediate flange interposed therebetween. A bobbin for a wire having a lead winding flange, wherein the body outer diameter of the lead winding portion changes continuously or stepwise from the intermediate flange toward the lead winding flange, and the inclined portion or the step portion and the lead. It is characterized in that a notch groove is provided through which the winding start end of the wire can be taken out of the bobbin through the winding collar.

Another bobbin for a wire rod according to the present invention is provided with a lead winding section for winding the winding start end of the wire rod with the main winding section and an intermediate flange therebetween. A wire bobbin having a flange, wherein the body of the lead winding portion is provided with a convex portion whose height changes continuously or stepwise from the intermediate flange toward the lead winding flange, and the convex portion and the lead are provided. It is characterized in that a notch groove is provided through which the winding start end of the wire can be taken out of the bobbin through the winding collar.

The method for treating a wire according to the present invention comprises the steps of winding a wire around a lead winding having a large body diameter or a lead winding having a convex portion, and subsequently winding the wire around a main winding. A step of taking the end out of the bobbin through a groove provided in the trunk or projection of the lead winding part and the lead winding flange,
Moving the wire wound around the large diameter portion of the lead winding portion or the lead winding portion of the convex portion to the thin diameter portion of the lead winding portion or the lead winding portion having no projection, and then taking out the wire material. And

[0009]

In the bobbin according to the present invention, the outer diameter of the body portion 4 of the lead winding portion 19 is changed, or the projection 6 is added to the body portion 4-2 of the lead winding portion 19. When the wire is wound up where it becomes large, when it is rewound, it moves to a place where the body diameter is small to give it slackness, and the winding start end 7-1 passes under the wound wire 7 through the groove 5 and underneath. As a result, the intersection of the wires can be resolved, so that the winding start end can be easily and quickly drawn out.

[0010]

Embodiments of the present invention will be described below with reference to the accompanying drawings. In the description of the drawings, the same elements will be denoted by the same reference symbols, without redundant description. FIG. 1 is a perspective view showing a configuration of a bobbin according to the first embodiment. A lead winding portion 19 for winding a winding start end 7-1 of a wire 7 across a main winding portion 20 and an intermediate flange 2 is provided. A bobbin for a wire provided with a main winding flange 1 and a lead winding flange 3 on both sides, wherein the outer diameter of the body 4 of the lead winding portion 19 continuously changes from the intermediate flange 2 to the lead winding flange 3. And the winding start end 7-1 of the wire 7 penetrates the inclined portion of the body 4 and the lead winding flange 3 and out of the bobbin.
This is a configuration in which a notch groove 5 from which a notch can be taken out is provided.

FIG. 2 is a front view of the case where the outer diameter of the body of the lead winding portion 19 changes stepwise from 40 to 41 from the intermediate flange 2 to the lead winding flange 3.

In the case of this embodiment, the outer diameter of the body 4 of the lead winding portion 19 is changed, so that the wire is wound first at a place where the body diameter is large, and is moved to a place where the body diameter is small when rewinding. There is a feature in processing with slack.
The next feature is that, as shown in FIG. 5 (b), the winding start end 7-1 passes under the wire 7 wound up through the groove 5 to release the intersection of the wires.

FIG. 3 is a perspective view showing the structure of the bobbin according to the second embodiment, and is a lead winding for winding the winding start end 7-1 of the wire 7 across the main winding portion 20 and the intermediate flange 2. A wire bobbin having a main winding flange 1 and a lead winding flange 3 on both sides, and the body 4-2 of the lead winding portion 19 has a height from the intermediate flange 2 toward the lead winding flange 3. A notch groove 5 that is provided with a convex portion 6 that continuously changes, and that penetrates the convex portion 6 and the lead winding flange 3 so that the winding start end 7-1 of the wire 7 can be taken out of the bobbin. It is a configuration provided.

FIG. 4 is a front view of the case where the body 4-2 of the lead winding portion 19 is provided with a convex portion 6 whose height changes stepwise from the intermediate flange 2 to the lead winding flange 3. As shown in FIG.

In the case of this embodiment, a convex portion 6 whose height is changed is added to the body portion 4-2 of the lead winding portion 19, and the wire is first wound around the high convex portion, and the wire is wound. The feature is that when returning, processing is performed with slack that has been moved to a place with a low height. Further, similarly to the above, the winding start end 7-
1 is to go under the wire 7 wound up through the groove.

Therefore, the groove 5 has a width sufficient to take out the winding start end 7-1 of the wire, and is preferably widened from the intermediate flange 2 to the lead winding flange 3 in view of processing. Further, the outer diameter of the body 4 of the lead winding portion 19 or the convex portion 6 added to the body 4-2 of the lead winding portion 19 has a taper that changes linearly from the intermediate flange 2 to the lead winding flange 3. It is preferable to have a bobbin in order to produce a bobbin.

The intermediate flange 2 is provided with two slits,
One of the slits is a deep slit 8 reaching the trunk, and the other slit is a shallow slit 9 located outside the maximum winding diameter in which the bobbin is used.

Next, a method of processing the lead winding portion of the present invention will be described with reference to FIG. This figure shows a bobbin having the configuration shown in FIG. (1) First, the end 7-1 of the wire 7 is fixed to the intermediate flange 2 with an adhesive tape, and the lead winding 1 is traversed while the wire 7 is traversed.
Take up to 9. After winding a predetermined length, the wire 7 is wound around the main winding portion 20 through the slit 8 (FIG. 5A). (2) After the winding of the wire is completed, the winding start end 7-1 is removed from the intermediate flange 2, and the wire 7 wound around the lead winding portion 19 is taken out of the bobbin through the groove 5 and out of the groove 5. . Here, the wire 7 wound around the lead winding portion 19 is moved in the direction of arrow A, that is, in the direction in which the body diameter is small (FIG. 5B). (3) Since the outer diameter of the body 4 is tapered so as to be closer to the lead winding flange 3, a gap is formed between the wound wires so that the wires can move freely. As a result, as shown in FIG. 5C, the wire 7 wound around the lead winding portion 19 can easily rewind the winding start end 7-1 around the lead winding portion 19.

In the above description, the case where the body diameter of the lead winding portion 19 changes continuously has been described. However, as shown in FIG. By moving the wire 7 wound on this portion to the small diameter 41 according to the procedure, the winding start end 7-1 can be easily unwound around the lead winding portion 19. 3 and 4, the same effect can be obtained by moving the wire wound around the high portion of the convex portion to the low portion.

[0020]

As described above, the bobbin according to the present invention changes the outer diameter of the body 4 of the lead winding portion 19,
Alternatively, the convex portion 6 is added to the body portion 4-2 of the lead winding portion 19, and the wire material is first wound up at a place where the body diameter becomes large, and when rewinding the wire rod, the wire is moved to a place where the body diameter is small and slackened. The crossing of the wire can be released by passing the winding start 7-1 through the groove 5 under the wire 7 wound through the groove 5, so that the winding start can be easily and quickly pulled out. Can be.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a configuration of a bobbin according to a first embodiment.

FIG. 2 is a front view showing a state in which the outer diameter of a lead winding portion changes stepwise.

FIG. 3 is a perspective view illustrating a configuration of a bobbin according to a second embodiment.

FIG. 4 is a front view showing a state in which a protrusion provided on a lead winding portion changes in a stepped manner.

FIG. 5 is a diagram for explaining a method of drawing out and processing a wire wound around a lead winding portion.

FIG. 6 is a conventional bobbin provided with a slit in a flange.

FIG. 7 is a conventional bobbin for processing an end of a wire into a flange.

[Explanation of symbols]

 1: Main winding flange 1-1, 1-2: Flange 2: Intermediate flange 3: Lead winding flange 4: Body whose outer diameter changes in a tapered shape 4-1, 4-2: Body 5: Groove 6: Convex part 7: Wire rod 7-1: Winding end of wire 7-2: End of winding of wire 8: Deep slit 9: Shallow slit 19: Lead winding 20: Main winding A: Arrow

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Hiroshi Oguro 1-chome, Taya-cho, Sakae-ku, Yokohama-shi, Kanagawa Prefecture Sumitomo Electric Industries, Ltd. Yokohama Works (56) References Hirai 6-8368 (JP, U) (58) Field surveyed (Int. Cl. ⁶ , DB name) G02B 6/00 336

Claims (6)

(57) [Claims] 1. A bobbin for a wire rod having a lead winding portion for winding a winding start end of a wire material with a main winding portion and an intermediate flange therebetween, and having a main winding flange and a lead winding flange on both sides. The outer diameter of the body of the winding portion changes continuously or stepwise from the intermediate flange toward the lead winding flange, and the wire is wound outside the bobbin through the inclined portion or the step portion and the lead winding flange. A bobbin for a wire rod provided with a cutout groove from which a start end can be taken out. 2. A bobbin for a wire rod, comprising: a lead winding portion for winding a winding start end of a wire material with a main winding portion and an intermediate flange separated from each other; The body of the winding portion is provided with a convex portion whose height changes continuously or stepwise from the intermediate flange toward the lead winding flange, and penetrates the projecting portion and the lead winding flange to the outside of the bobbin. A bobbin for a wire rod provided with a notch groove from which a winding start end of the wire can be taken out. 3. The bobbin for a wire rod according to claim 1, wherein the groove has a width sufficient to take out a winding start end of the wire rod, and expands from the intermediate flange toward the lead winding flange. 4. An outer diameter of the body portion of the lead winding portion or a convex portion added to the body portion of the lead winding portion has a taper that changes linearly from the intermediate flange toward the lead winding flange. Item 3. The wire bobbin according to Item 1 or 2. 5. The intermediate flange is provided with two slits,
3. The slit according to claim 1, wherein one of the slits is a deep slit reaching the body, and the other slit is a shallow slit located outside a maximum winding diameter in which the bobbin is used. Bobbin for wire rod. 6. A step of winding a wire around a lead winding having a large body diameter or a lead winding having a convex portion, and subsequently winding the wire around a main winding. Alternatively, a step of taking out the bobbin through the protrusion and the groove provided in the lead winding flange, and removing the wire wound around the large diameter portion of the lead winding or the lead winding of the projection to the narrow diameter portion of the lead winding. Or a step of taking out after moving to a lead winding part having no convex part.