JPH063483B2 - Cutting end face processing device for plastic optical fiber - Google Patents

Description

The present invention relates to a device for cutting and end face processing of a plastic optical fiber.

Since plastic optical fibers are cheaper than glass optical fibers, they are being widely used in recent years.

When connecting the plastic optical fibers, it is important to prevent the light attenuation as much as possible by smoothing the joint end face to a mirror surface simultaneously with the centering.

Conventionally, the end face of a plastic optical fiber has been smoothly finished by polishing or heat treatment with a hot plate or the like.

However, when joining fibers, it is often necessary to cut the fibers, which requires two operations of cutting with a cutter and end face treatment, which is a disadvantage of poor work efficiency.

Further, in the conventional device, a holding device is required to hold the optical fiber, the size of the device becomes large, and the operation is troublesome such as the need to cut the optical fiber once attached to the holding device. There was a flaw.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional drawbacks, and an object of the present invention is to provide a device capable of simultaneously holding, cutting, and end-face treating a plastic optical fiber in one operation.

The device of the first invention of the present application holds the plastic optical fiber by the first holding piece that can move up and down and the second holding piece that is provided so as to face the first holding piece. It is configured to move by pressing so that the fiber can be moved while holding it, and a cutting means provided with a heating means is provided in the moving path, and the holding operation of the fiber, soft cutting, and the end surface by the pressing operation of the first holding piece. The basic feature is that processing and processing are performed in one operation. The heating temperature of the cutting means may be appropriately set according to the material characteristics of the fiber, and is a temperature that does not soften and melt the fiber.
With this configuration, the operation of holding the fiber and the operation of processing the cut end face can be realized in one operation.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

1 is a front sectional view thereof, FIG. 2 is a side sectional view thereof, and FIG. 3 is an operation explanatory view.

The main body X has a rectangular box shape, and its upper portion is open. A tubular sliding body 40 is slidably fitted in the main body X and is supported by a spring 400 so as to be able to descend. In the opening of the main body X, a cylindrical actuating body 41 having a closed upper surface is fitted with the upper end side protruding. This actuator 41 is a spring
It is supported by 410 so that it can descend, and is configured to move up and down while sliding in the main body X. The sliding body 40 and the operating body 41 constitute the relative motion device 4.

A box-shaped support 5 having a bottom opening is supported and fixed by a shaft 50 at a substantially central portion in the main body X. 51 is an insulator for insulation. A cutting device, that is, the cutting blade 2 in this embodiment, is fixed to the support 5. Further, a heater 3 for heating the cutting blade 2 and its temperature controller 31 are mounted.

An opening 411 is formed on the front surface of the actuating body 41, and the first holding piece 10 is suspended and fixed therein. On the other hand, sliding body
A projecting portion 401 projecting into the opening 411 is formed at the upper end of the 40, and a second holding piece 11 is fixed to the holding piece 10 so as to face the holding piece 10 and project upward. The first and second holding pieces
The holding device 1 is constituted by 11. These holding pieces 10,1
Notches 100 and 110 for holding fibers are provided at positions facing each other in 1 so as to form holding holes when the holding pieces 11 and 12 are engaged with each other. In this embodiment, two notches 100 and 110 are provided, one large and one small so as to correspond to the type of fiber thickness. In this embodiment, the optical fiber is attached to the connector and the end face is cut, and the cutouts 100 and 110 are held by holding the ferrule according to the diameter of the ferrule of the connector. . Then, the ferrule stopper plate 6 is provided inside the holding pieces 10 and 11. This plate 6 has a notch 10
A long hole 60 is provided at a position corresponding to 0 and 110, and the ferrule is stopped here so that only the tip of the fiber is projected inside.

In the above structure, if the holding piece 11 is loaded with the fiber, the bottom surface of the main body X and the upper surface of the actuation body 41 are grasped with fingers, and the actuation body 41 is pressed against the force of the spring 410, the holding piece 10 is accompanied by it. Then, the fiber is clamped and held by the holding pieces 10 and 11.
When the operating body 41 is further lowered, it is pushed by this and the sliding body 40 is pressed.
Starts to descend against the spring 400, and the fiber holds the holding pieces 10, 1
It descends while being held at 1.

The above-mentioned cutting blade 2 is located on this descending path. That is, the cutting blade 2 is installed obliquely so as to be substantially in contact with the back side of the second holding piece 11. The cutting blade 2 is a horizontally long blade extending over the two notches 100 and 110, but may be separate blades. Further, the blade may be installed so as to cross diagonally without being orthogonal to the fiber traveling direction. It is desirable that the contact surface of the cutting blade 2 with the fiber be mirror-finished. The cutting blade 2 is a hook-shaped support piece 20 attached to the upper surface of the support body 5.
It is supported by. As described above, the heater 3 is attached to the support body 5, and the heat is conducted to the support body 5 and the support piece 10 to heat the cutting blade 2.
The heating temperature of the cutting blade 2 may be determined according to the characteristics of the plastic optical fiber to be cut, and is set at a temperature at least capable of softening the fiber. Further, when the fiber is melted, melting scraps are generated, so the temperature is set below the melting temperature. If limited to the currently widely distributed plastic optical fibers, 100-115 ° C
It is desirable to set the degree. The temperature controller 30 maintains this set temperature, and a thermostat is used in this embodiment. A switching device may be provided so that the set temperature can be switched appropriately.

The ferrule stopper plate 6 is fixed to the upper surface of the support body 5. Reference numeral 31 is a power cord, and Y is an insulating heat-resistant material attached to the bottom of the main body X and the top of the actuation body 41, and is for protection from heat and current when pressed with a finger.

Next, the operation will be described with reference to FIG.

As described above, the ferrule F is placed on the notch 110, and the actuating body 41 is pushed to engage the holding pieces 10 and 11 to hold the ferrule F. When the actuating body 41 is further pushed, the sliding body 40 also descends accordingly, descending while holding the ferrule F and the fiber P, and the fiber comes into contact with the heated cutting blade 2 and is cut. This cutting is soft cutting by the heated cutting blade 2. Simultaneously with this cutting, the end surface of the fiber P is subjected to end surface treatment by heating.

〔The invention's effect〕

As described above, according to the apparatus of the present invention, there is an advantage that the holding and cutting of the plastic optical fiber and the end surface treatment can be performed in one operation.

Further, in the second invention, most of the components are housed inside the main body, and the actuation body is mounted on the upper end side of the main body. Therefore, there are advantages that the device is downsized and is convenient for carrying and the like.

[Brief description of drawings]

FIG. 1 is a front sectional view of an embodiment of the present invention, FIG. 2 is a side sectional view, and FIG. 3 is an operation explanatory view. DESCRIPTION OF SYMBOLS 1 ... Holding device, 2 ... Cutting blade 3 ... Heater, 4 ... Relative movement device 5 ... Support body, 6 ... Ferrule stop plate

Claims (2)

[Claims] 1. A plastic optical fiber is held by a first holding piece that can move up and down and a second holding piece that is provided so as to face the first holding piece, and the second holding piece is pressed by the first holding piece. It is configured to move so that it can be moved while holding the fiber, and a cutting means provided with a heating means is provided in the movement path, and a pressing operation of the first holding piece causes it to move between the second holding piece and the second holding piece. A plastic optical fiber cutting end face processing device, characterized in that the plastic optical fiber is moved while being held so that the fiber holding, softening cutting and end face processing are performed in one operation. 2. A sliding body mounted in the main body so as to be movable in the vertical direction is provided with a second holding piece so as to project from the upper end of the main body, and is mounted so as to project toward the upper end of the main body in the vertical direction. A first holding piece facing the second holding piece, and holding the plastic optical fiber between the first and second holding pieces by pushing down the working body. A cutting means for cutting the plastic optical fiber by the movement is provided inside the main body, and a heating means for heating the cutting means to perform soft cutting and end face treatment of the plastic optical fiber inside the main body. A device for processing a cut end surface of a plastic optical fiber, which is provided in.