JPS6239802A - Optical fiber cutting device - Google Patents

Abstract

PURPOSE:To eliminate a harmful effect caused by a cutting waste, by providing not only a cutting means but also a collecting means of the cutting waste. CONSTITUTION:A coating removed part 45 is made by only a suitable length of the tip of an optical fiber 44, it is inserted into a through-hole of a holding member 10, and the tip part of the coating removed part 45 is ruptured by a cutting machine 25. Even after the coating removed part 45 has been ruptured, an operating lever 38 moving in the direction A7 together with the holding member 10 by winding a wire 29 turns a press lever 34 in the direction A9, a press pump 32 is contracted in the direction A11 through a spring 35, and an engaged state of an engaged part 37 of the operating lever 38 and the press lever 34 is released. In this case, the press pump 32 being ion a contracted state is restored instantaneously in the direction A12 and operates a suction action, and this suction force reaches the through-hole of the holding member 10, and the through-hole and the inside of a cutting waste container 40 become a negative pressure, therefore, a cutting waste of the coating removed part 45 being in the through-hole is sucked into the cutting waste container 40 and collected.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a device suitable for cutting optical fibers.

``Prior Art'' When connecting optical fibers, the ends of optical fibers are cut as required.

As such optical fiber cutting machines, hand grip type for manual cutting, portable type for mechanized or automated cutting, etc. have been provided and put into practical use.

When using any of the cutting machines described above, the optical fiber is stripped from its end, and then the stripped end of the optical fiber is placed in position on the cutting machine and cut.

As is well known, the outer diameter of an optical fiber is approximately 1 mm even if it is coated with a secondary coating, and the outer diameter of an optical fiber from which the coating is removed is approximately 100 gm.

“Problems to be Solved by the Invention j Cutting debris after cutting an optical fiber is harmful and dangerous.

For example, if the cutting debris gets stuck inside the cutting machine, it will interfere with the next cutting operation, and if touched carelessly, it will pierce your fingers.

Therefore, it is desirable to quickly collect the above-mentioned cutting chips and dispose of them appropriately. is difficult.

Therefore, under the present circumstances, cutting debris generated by cutting an optical fiber is not sufficiently collected, or it tends to be left scattered at the work site.

SUMMARY OF THE INVENTION In view of the above-mentioned problems, the present invention aims to provide a device that can rationally perform everything from cutting an optical fiber to collecting cut debris.

Means for Solving Problem 1 In the optical fiber cutting device according to the present invention, a support member for supporting the optical fiber is fixed to the mounting surface of the base, and the tip side of the support member has a curved optical fiber. A plate spring member is attached to the plate spring member, and a holding member having a through hole for inserting the tip end of the optical fiber is attached to the tip side of the plate spring member, and a holding member for holding the optical fiber that can be freely pushed toward the surface of the plate spring member. A gripping mechanism is attached to the mounting surface, a cutting machine for cutting the optical fiber is equipped with a blade movable toward the surface of the plate spring member, and a cutting machine for cutting the optical fiber is attached to the distal end side of the plate spring member. A pulling mechanism for pulling the leaf spring member in the curved direction is connected to the holding member, and a cutting waste container communicating with the through hole is attached to the holding member. A feature is that the piping of the suction mechanism is connected to the part.

"Operation J When cutting an optical fiber using the device of the present invention, first,
An optical fiber is set across the support member and the holding member, and the optical fiber is attached to the leaf spring member, but at this time,
Insert the tip of the optical fiber into the through hole of the holding member, press the optical fiber against the leaf spring member by the gripping mechanism, and hold these #! The tip side of the optical fiber is gripped by the structure and the leaf spring member.

Next, the blade of the cutting machine moves toward the optical fiber in the gripped state and damages the optical fiber.

Thereafter, the distal end side of the leaf spring member is pulled in the direction of its curvature via the pulling mechanism.

Due to such traction, the leaf spring member curves around the leaf spring, and the sheet rubber on the upper part of the leaf spring stretches.
A bending load and a tensile load are applied to the optical fiber attached to the plate spring member, and the optical fiber subjected to these loads breaks at the scratched portion, completing the cutting.

After the above-mentioned cutting, when the suction mechanism is activated, a negative pressure is created in the through hole of the holding member or the cut waste container, and the cut optical fiber chips remaining in the through hole are sucked and collected into the cut waste container. be done.

As described above, according to the apparatus of the present invention, it is possible to perform everything from cutting an optical fiber to collecting the cut debris.

rEmbodiment J Hereinafter, embodiments of the apparatus of the present invention will be described with reference to the drawings.

In FIGS. 1 and 2, 1 is a base body, and 2 is a mounting surface of the base body 1.

Reference numeral 3 denotes a support member, and this support member 3 consists of two blocks 4.5 connected to each other, and a groove 6 for fitting an optical fiber is formed on the upper surface of one of the blocks 4. .

7 is a leaf spring member, and this leaf spring member 7 includes a metal leaf spring 8 and a sheet rubber 8 stuck to the surface of the leaf spring 8.
It consists of

Reference numeral 10 denotes a holding member, and as shown in FIG. 4, this holding member 10 is provided with a through hole 11 for inserting an optical fiber, and an insertion hole at one end of the through hole 11. 12
is formed, and a suction port 13 is provided to intersect with the through hole 11.

Among the above-mentioned members, the support member 3 is attached to the mounting surface 2 of the base l.
The leaf spring member 7 is attached to the tip side of the support member 3 so as to extend toward the other end of the mounting surface 2, and the holding member is attached to the tip side of the leaf spring member 7. can be attached to.

In this attached state, the groove 8 of the support member 3, the surface of the leaf spring member 7, and the through hole 11 of the holding member 10 are aligned in a straight line.

A gripping mechanism 14 is attached to the tip side of the leaf spring member 7, and as shown in FIG. A presser member 17 and a cam contact piece 18 attached to the tip, a motor 18 that can freely rotate in forward and reverse directions, an eccentric or elliptical cam 20 attached to the motor shaft, and a presser surface of the presser member 17. It consists of a pasted sheet rubber 21 and a spring 22 for pulling the rotary lever 1B toward the surface of the plate spring member F.

When the gripping mechanism 14 is attached to the distal end side of the leaf spring member 7, the mechanism is assembled to the holding member 10.

At this time, the base end of the rotary lever 1B is pivotally attached to the back surface of the holding member 10 via the pin 15, and the pressing member 17 at the tip of the lever faces the surface of the leaf spring member 7.

On the other hand, the motor 19 is also attached to the back surface of the holding member 10 below the rotary lever 16, and the cam 20 on the motor shaft is brought into contact with the cam contact piece 18 at the tip of the rotary lever 16.

A cutting machine 25 having a cutting tool (blade) 24 at the tip of a blade shaft 23 is attached to the mounting surface 2 of the base body 1 described above.

The main body of the cutter 25 is composed of an actuator, and the actuator operates the blade shaft 23 using a solenoid, a motor, etc. operated by an electric signal.

The cutting machine 25 configured as described above includes the support member 3 and the holding member lO.
The blade 24 is attached to the mounting surface 2 of the base body 1 between the blades 1 and 2, and its blade 24 faces the surface of the leaf spring member 7.

Reference numeral 26 denotes a traction mechanism for pulling the plate/henne member 7 in its curved direction. 28 and a capstan 30.

The traction mechanism 26 has a motor 27 that is connected to the mounting surface 2.
The motor 27 is disposed on the second support member 3 side, and the motor 27 passes through a part of the support member 3.

”2 The winding drum 28 is connected to the shaft of the motor 27.
One end of the wire 29 is wound around the wire 28.
The middle part of the wire 28 is wound around the capstan 30, and the other end of the wire 28 is fixed to the holding member 10.

31 is a suction mechanism, and the suction mechanism 31 includes a squeeze pump 32, a pipe 33 connected to the squeeze pump 32,
Squeezing lever 34, squeezing pump 32 and squeezing lever 3
4 and a spring 35 for connecting the two.

The squeezing pump 32 of the suction mechanism 31 is disposed on the distal end side of the support member 3, that is, on the distal end side of the block 5, on the mounting surface 2''-, and is stopped by an appropriate means to prevent it from shifting. is connected to the suction port 13 of the through hole 11 as shown in FIG.

The squeezing lever 34, which has a hook-shaped bent shape, has one end embedded in the "second block 5", and the other end is designed to swing and rotate.

The compression lever 34 and the tip of the compression pump 32 are connected via a spring 35.

An operating lever 38 is attached to the upper surface of the holding member 10 described above, and has an upwardly curved leading edge guide piece 36 and a concave engagement portion 37 continuous with the guide piece 36. The tip of 38 is the compression lever 3
4 and can be freely connected and disconnected.

Further, on the mounting surface 2, in the rotational direction of the compression lever 34, an angled release member 38 is provided which corresponds to the tip of the operating lever 38 so as to be able to collide with it.

40 is a cylindrical waste container, and the opening 41 of this waste container 40 is removably fitted into the insertion hole 1112 of the through hole 11 as shown in FIG.

In the figure, 42 is a circuit box containing an electric control circuit for operating the aforementioned motor, actuator, etc.;
3 is a dry battery that is the power source for these electrical devices.

Furthermore, 44 is a coated optical fiber, and 45 is a coating removal portion on the tip side of the optical fiber.

In addition, in the above-mentioned device of the present invention, each mechanical member whose material is not specified is made of metal or synthetic resin.
Electrical components and the like are made of known electrical materials.

Next, an example of cutting an optical fiber using the apparatus of the present invention will be explained.

When the optical fiber 44 is cut by the apparatus of the present invention, the coating is removed from the tip of the optical fiber 44 by an appropriate length.

The optical fiber 44 from which the coating has been removed is removed from its coating removal section 4
5 is inserted into the through hole 11 of the holding member 10, and the coated portion of the optical fiber 45 is fitted into the groove 8 of the support member 3.

When the optical fiber 44 is set between the two members 3 and 10 as described above, the removed portion 45 of the optical fiber comes to follow the surface of the leaf spring member 7.

Thereafter, the motor 18 is rotated in the direction R1 in FIG.

When the cam 20 is rotated in the same direction, the rotation lever 16 of the gripping mechanism 14, which is tensioned by the spring 22, moves to the first position.
The presser member 17 moves in the direction A1 in FIG.
5 is pressed against the coating removal part 45 on the plate spring member 7, and the presser member 17 and the plate spring member 7 grip the coating removal part 45.

Next, the cutting machine 25 is operated, and the blade shaft 23 is
The blade 2 at the tip of the blade shaft moves by a predetermined amount in three directions.
4 scratches the coating removal portion 45 on the surface of the leaf spring member 7.

After damaging the coating removal portion 45, the blade shaft 23 returns to the direction A4 in FIG.

Simultaneously with the return of the blade shaft 23, the motor 27 of the traction mechanism 26 is rotated in the direction R3 in FIG.
When the wire 28 is rotated in the same direction, the wire 28 is wound up by the winding drum 28, and a pulling force is generated on the wire 28 in the direction A5 in FIG.

The holding member 10 is pulled in the direction A7 in FIG. 1 by this pulling force, and the leaf spring member 7 is bent as shown by the imaginary line in FIG. do.

After the optical fiber is cut due to the breakage, when the motor 19 is rotated in the direction R2 in FIG. , and moves in the direction A2 in FIG. 1 against the spring 22, and at the same time, the presser member 17 at the tip of the rotary lever is released from the cut end of the coating removal portion on the plate spring member 7 and released from its gripping state.

Even after the coating removal part 45 breaks, the wire 28 is wound up, but when the holding member 10 further moves in the A7 direction due to the wire winding, the tip of the operating lever 38 attached to the upper surface of the member 10 The lever 34 rides on the squeeze lever 34 of the suction mechanism 31 via the guide piece 36 at its tip, and then the engaging portion 37 of the operating lever 38 relatively engages with the squeeze lever 34 .

When the wire 28 is further wound in this state, the operation lever 38, which moves in the A7 direction together with the holding member 10, rotates the compression lever 34 in the O direction in FIG.

The compression lever 34, which is rotated by the operation lever 38 in the ○ direction above, contracts the compression pump 32 in the All direction in FIG. When the guide piece 36 at the tip of the lever rides on the retention release member 38, the engagement between the engagement portion 37 of the operating lever 38 and the compression lever 34 is released.

At this time, the compression pump 32 in the contracted state is shown in FIG.
Instantly returns to its original state in two directions, creating a suction effect.

The suction force of this squeeze pump 32 is applied to the through hole 11 of the holding member 10 via the piping 33, and as a result, the inside of the through hole 11 or the cutting waste container 40 becomes negative pressure. The scraps of the removed @ 45, ie, cutting waste, are sucked into the cutting waste container 40 and collected.

In the above, when the compression pump 32 returns to the direction A12 in FIG. 1, the compression lever 34 connected to the pump 32 via the spring 35 also returns to the direction O in FIG. 1.

Furthermore, after collecting the cutting waste by the squeeze pump 32, the motor 27 of the traction mechanism 26 is rotated in the direction R4 in FIG. A restores itself due to its own springiness and returns to the straight-stretched state.

1) The ordered operations from cutting the optical fiber to collecting the cut debris described in 2 above are preferably performed using limit switches, photoelectric switches, etc., or sequence control using a timer. For example, when a limit switch is used, a plurality of limit switches are arranged on the mounting surface 2 of the base 1 in such a manner that they can collide with each member.

The above-mentioned traction mechanism 26 may be equipped with a lever, a link, a screw shaft, etc. in place of the wire 29 or belt.

Although the above-described suction mechanism 31 is mainly based on the compression pump 32, various types of pumps such as a centrifugal type, a reciprocating type, and a rotary type can be used.

The piping 33 of the pump may be connected to a suction port provided at an appropriate location on the cutting waste container 40, and in this case, the suction port 13 of the holding member 10 is omitted.

When the cutting waste container 40 is filled with cutting waste, a new cutting waste container 40 is stored in the holding member 10, but the cutting waste container 40 containing cutting waste is sealed. It is better to discard it.

"Effects of the Invention J As explained above, the device of the present invention is equipped not only with a means for cutting the optical fiber but also with a means for collecting the cut waste, so that the entire process from cutting the optical fiber to collecting the cut waste can be carried out. This can be done easily and rationally, and therefore, when the optical fiber is cut as necessary, the harmful effects caused by cutting debris can be eliminated.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing an embodiment of the device of the present invention, Fig. 2 is a perspective view of the device, Fig. 3 is a perspective view of the gripping mechanism in the device, and Fig. 4 is a view of the holding member in the device. FIG. 1--Base 2--Base mounting surface 3-M-Supporting member 7--11 Leaf spring member 10-M-Holding member 11...Through hole 14...Gripping mechanism 24...Blade 25...Cutter 26...Traction mechanism 29...Wire 31 of the traction mechanism...Suction mechanism 33...Piping 40 of the suction mechanism... Cutting waste container 44...Optical fiber

Claims (1)

[Claims] A support member for supporting the optical fiber is fixed to the mounting surface of the base, a leaf spring member for bending the optical fiber is attached to the tip side of the support member, and a leaf spring member for bending the optical fiber is attached to the tip side of the support member. a holding member having a through hole for inserting the tip;
An optical fiber gripping mechanism that can be freely pushed toward the surface of the leaf spring member is attached, and an optical fiber cutting mechanism that is equipped with a blade that can be moved toward the surface of the leaf spring member is attached to the mounting surface. A cutting machine is attached, a traction mechanism is connected to the distal end side of the leaf spring member for pulling the leaf spring member in the curved direction, and the holding member has a cutting waste container communicating with the through hole. What is claimed is: 1. An optical fiber cutting device, characterized in that a pipe for a suction mechanism is connected to any part of the through hole, cutting waste container, etc.