Optical fiber cutting tool for multi-fiber radial cutting and cutting method thereof

Abstract

The invention provides a multi-fiber radial cutting optical fiber cutting tool and a cutting method thereof.The multi-fiber radial cutting optical fiber cutting tool comprises a base, the upper end face of the base is provided with a containing straight groove, a plurality of straight fiber grooves and a cutting straight groove, and the first ends of the straight fiber grooves communicate with the communicating end of the containing straight groove; the plurality of straight fiber grooves are radially distributed towards the divergence side based on the reference center line by taking the communication end part as a transmitting end; a cut-in opening is formed in the upper portion of the cutting straight groove, and the cutting straight groove is located on the diverging side and penetrates through the multiple straight fiber grooves; a negative pressure pipeline is arranged in the base, and an adsorption hole is formed in the bottom wall of the straight fiber groove in a penetrating mode and communicated with the negative pressure pipeline. According to the scheme, a plurality of single-core optical fibers can be cut at a time through the cutter, the cutting efficiency of the single-core optical fibers can be improved, the straight fiber grooves are distributed in the radial shape based on the transmitting end, the cutting length can be accurately controlled by controlling the included angles between the straight fiber grooves and the cutting-off positions for cutting the straight grooves, and the cutting efficiency of the single-core optical fibers is improved. And the length difference between the cutting lengths of the adjacent optical fibers can be accurately ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of optical fiber processing, and in particular to an optical fiber cutting tool for radially cutting multiple fibers and a cutting method thereof. Background Art

[0002] With the development of the Internet, the use of optical fiber is increasing day by day. Optical fiber is the abbreviation of optical fiber, which is a fiber made of glass or plastic and can be used as a light transmission tool. In the process of connecting and using existing home network optical fibers, the outer skin of the optical fiber needs to be cut to form a bare optical fiber, and then the length of the accessories is manually adjusted accordingly. With the popularization of multi-core optical fibers, in some specific access solutions, each single-core optical fiber of the multi-core optical fiber needs to be cut according to a specific length difference.

[0003] The main existing processing method is to use a blade to cut each single-core optical fiber one by one. Each single-core optical fiber needs to be measured and cut separately, which is time-consuming and labor-intensive, and the accuracy is difficult to control. Summary of the invention

[0004] The first object of the present invention is to provide an optical fiber cutting tool for radial cutting of multiple fibers.

[0005] The second object of the present invention is to provide a cutting method for the above-mentioned optical fiber cutting tool.

[0006] In order to achieve the first purpose of the present invention, the present invention provides an optical fiber cutting tool for radial cutting of multiple fibers, including a base, the base is provided with a placement straight groove, a plurality of straight fiber grooves and a cutting straight groove, all of which are provided with an upper end surface extending in a horizontal direction, the placement straight groove extends along a reference center line, the first ends of the plurality of straight fiber grooves are connected to a connecting end of the placement straight groove, and the plurality of straight fiber grooves are radially distributed toward a divergent side based on the reference center line with the connecting end as an emitting end; the cutting straight groove is provided with an entry opening at the top, the cutting straight groove is located on the divergent side and passes through the plurality of straight fiber grooves; a negative pressure pipe is provided in the base, and an adsorption hole is penetrated through the bottom wall of the straight fiber groove, and the adsorption hole is connected to the negative pressure pipe.

[0007] A further solution is that the bottom wall of the straight fiber groove is provided with a plurality of adsorption holes, and the plurality of adsorption holes are distributed along the extension direction of the straight fiber groove.

[0008] A further solution is that the bottom wall of the straight fiber groove is provided with at least two adsorption holes, and the at least two adsorption holes are respectively located on both sides of the cutting straight groove.

[0009] A further solution is that the negative pressure pipe includes a first width pipe, a second width pipe and a connecting pipe, the first width pipe is perpendicular to the reference center line, the second width pipe is perpendicular to the reference center line, the connecting pipe is connected between the first width pipe and the second width pipe, the adsorption hole on one side is connected to the first width pipe, and the adsorption hole on the other side is connected to the second width pipe.

[0010] A further solution is that a plurality of straight fiber slots are provided with loading openings on the top.

[0011] A further solution is that a placement opening is provided on the top of the placement straight groove, and the optical fiber cutting tool also includes a pressing plate, which covers the placement opening.

[0012] A further solution is that the optical fiber cutting tool also includes a cutting knife, and the cutting knife cuts from the cutting opening into the cutting straight groove.

[0013] A further solution is that a cutting length is provided between each straight fiber slot from the emitting end to the cutting straight fiber slot, and the cutting lengths of two adjacent straight fiber slots have the same length difference.

[0014] In order to achieve the second purpose of the present invention, the present invention provides a cutting method for an optical fiber cutting tool applied to the scheme, the cutting method comprising: placing a multi-core optical fiber into a placement straight groove, placing a single-core optical fiber of the multi-core optical fiber into a straight fiber groove, and passing multiple single-core optical fibers through the cutting straight groove; the adsorption hole adsorbs and fixes the single-core optical fiber; and using a cutting knife to cut from the cutting opening into the cutting straight groove, and the cutting knife cuts off multiple single-core optical fibers.

[0015] The beneficial effect of the present invention is that by placing the multi-core optical fiber into the straight groove, it can be fixed by pressing with a pressure plate, and a single-core optical fiber is placed in a straight fiber groove, and then the single-core optical fiber is adsorbed and fixed by the negative pressure of the adsorption hole, and finally a plurality of single-core optical fibers can be cut at one time by a cutter, which can improve the cutting efficiency of multiple single-core lights, and because the straight fiber grooves are radially distributed based on the emitting end, by controlling the angle between each straight fiber groove and the cutting position of the straight groove, the cutting length can be accurately controlled, and the length difference of the cutting length of adjacent optical fibers can also be accurately guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of an embodiment of the optical fiber cutting tool of the present invention.

[0017] Figure 2 It is a structural diagram of an embodiment of the optical fiber cutting tool of the present invention in a cutting state.

[0018] Figure 3 It is a cross-sectional view of an embodiment of the optical fiber cutting tool of the present invention at a first width pipe.

[0019] Figure 4It is a cross-sectional view of an embodiment of the optical fiber cutting tool of the present invention at the connecting pipe.

[0020] Figure 5 It is a schematic diagram of the arrangement of the straight fiber grooves in the embodiment of the optical fiber cutting tool of the present invention.

[0021] The present invention is further described below in conjunction with the accompanying drawings and embodiments. DETAILED DESCRIPTION

[0022] Reference Figures 1 to 5 The optical fiber cutting tool includes a base 1, a pressing plate 31 and a cutting knife 32. The base 1 is provided with a placement straight groove 21, eight straight fiber grooves 22 and a cutting straight groove 23 on the upper end surface, all of which extend in the horizontal direction. The placement straight groove 21 extends along the reference center line L0, and the placement straight groove 21 is provided with a placement opening on the top. One end of the pressing plate 31 is hinged to the base 1, and the other end of the pressing plate 31 is detachably fixedly connected to the base 1. The connection method includes magnetic attraction, snap-on or lock-on form. The pressing plate 31 covers the placement opening of the placement straight groove 21. When the multi-core optical fiber 331 is placed in the placement straight groove 21, the pressing plate 31 is adjacent to the multi-core optical fiber 331 and is used to fix the position of the multi-core optical fiber 331.

[0023] The first ends of the plurality of straight fiber slots 22 are connected to the connecting end portion where the straight slot 21 is placed, and the plurality of straight fiber slots 22 are radially distributed toward the divergent side based on the reference center line L0 with the connecting end portion as the emitting end, and the plurality of straight fiber slots 22 are provided with loading openings at the top, and the second ends of the plurality of straight fiber slots 22 are arranged to penetrate in the horizontal direction.

[0024] The cutting straight groove 23 is provided with a cutting opening at the top. The cutting straight groove 23 is located on the divergent side and penetrates multiple straight fiber grooves 22. The cutting straight groove 23 is set at a cutting angle a with the reference center line L0. The cutting angle a is set according to different length difference requirements, and is preferably 30° to 90°, and this embodiment adopts 60°.

[0025] A negative pressure pipe is arranged in the base 1, and a plurality of adsorption holes 111 and a plurality of adsorption holes 121 are penetrated through the bottom wall of each straight fiber groove 22, and the adsorption holes 111 and the adsorption holes 121 are both connected to the negative pressure pipe. Specifically, the plurality of adsorption holes 111 and the plurality of adsorption holes 121 are distributed along the extension direction of the straight fiber groove 22, and the plurality of adsorption holes 111 and the plurality of adsorption holes 121 are respectively located on both sides of the cutting straight groove 23.

[0026] The negative pressure pipeline includes a first width pipeline 11, a second width pipeline 12 and a connecting pipeline 13. The first width pipeline 11 is perpendicular to the reference center line L0, the second width pipeline 12 is perpendicular to the reference center line L0, the connecting pipeline 13 is connected between the first width pipeline 11 and the second width pipeline 12, the adsorption hole 111 on one side is connected to the first width pipeline 11, and the adsorption hole 121 on the other side is connected to the second width pipeline 12. The outer end of the first width pipeline 11 is provided with an interface 14, and the optical fiber cutting tool also includes a negative pressure generating device, which is connected to the interface 14 of the negative pressure pipeline, and then provides vacuum negative pressure for the negative pressure pipeline.

[0027] Each straight fiber slot 22 has a cutting length from the emission end to the cutting straight slot 23, for example, Figure 5 The cutting length of the lowermost straight fiber groove 22 from the transmitting end to the cutting straight groove 23 is L1, and the cutting length of the second lower straight fiber groove 22 from the transmitting end to the cutting straight groove 23 is L2. The length difference between L1 and L2 is S. The cutting lengths of two adjacent straight fiber grooves 22 have the same length difference S. When the cutter 32 cuts into the cutting straight groove 23 from the cutting opening, multiple single-core optical fibers 332 can be cut at one time, and then two adjacent single-core optical fibers 332 have the same length difference S.

[0028] The cutting methods used in the above-mentioned optical fiber cutting tool include: First, the multi-core optical fiber 331 is placed in the placement straight groove 21 , and a single-core optical fiber 332 of the multi-core optical fiber 331 is placed in a straight fiber groove 22 . At this time, multiple single-core optical fibers 332 pass through the cut straight groove 23 .

[0029] Then, the negative pressure generating device is started to generate negative pressure in the negative pressure pipe, and then the adsorption holes 111 and the adsorption holes 121 adsorb and fix the single-core optical fiber 332 .

[0030] Finally, the cutter 32 is used to cut from the cutting opening into the cutting straight groove 23, and the cutter 32 cuts off multiple single-core optical fibers 332. In addition to using a long flat knife, the cutter 32 can also use a roller for cutting, that is, the roller rolls along the cutting straight groove, which can also achieve the cutting of single-core optical fibers.

[0031] In addition, the number of straight fiber grooves can also be arranged according to actual conditions, which may include three or more straight fiber grooves. The angle between the straight fiber grooves, as well as the layout position and cutting angle of the cut straight grooves can be set according to the required length of the single-core optical fiber.

[0032] As can be seen from the above, by placing the multi-core optical fiber into the straight groove, it can be fixed by pressing with a pressing plate, and a single-core optical fiber is placed in a straight fiber groove, and then the single-core optical fiber is adsorbed and fixed by the negative pressure of the adsorption hole, and finally multiple single-core optical fibers can be cut at one time by a cutter, which can improve the cutting efficiency of multiple single-core lights. Moreover, since the straight fiber grooves are radially distributed based on the transmitting end, by controlling the angle between each straight fiber groove and the cutting position of the straight groove, the cutting length can be accurately controlled, and the length difference of the cutting length of adjacent optical fibers can also be accurately guaranteed.

Claims

1. An optical fiber cutting tool for radial cutting of multiple fibers, comprising a base, characterized in that: The base is provided with a placement straight groove, a plurality of straight fiber grooves and a cutting straight groove on the upper end surface, all of which extend in the horizontal direction. The placement straight groove extends along the reference center line. The first ends of the plurality of straight fiber grooves are connected to the connecting end of the placement straight groove. The plurality of straight fiber grooves are radially distributed toward the divergent side based on the reference center line with the connecting end as the emitting end. The cutting straight groove is provided with a cutting opening at the top, and the cutting straight groove is located on the divergent side and penetrates through the plurality of straight fiber grooves; A negative pressure pipeline is arranged in the base, and an adsorption hole is penetrated through the bottom wall of the straight fiber slot, and the adsorption hole is communicated with the negative pressure pipeline.

2. The optical fiber cutting tool according to claim 1, characterized in that: The bottom wall of the straight fiber slot is provided with a plurality of the adsorption holes, and the plurality of the adsorption holes are distributed along the extension direction of the straight fiber slot.

3. The optical fiber cutting tool according to claim 1, characterized in that: The bottom wall of the straight fiber groove is provided with at least two adsorption holes, and the at least two adsorption holes are respectively located on both sides of the cutting straight groove.

4. The optical fiber cutting tool according to claim 3, characterized in that: The negative pressure pipe includes a first width pipe, a second width pipe and a connecting pipe, the first width pipe is perpendicular to the reference center line, the second width pipe is perpendicular to the reference center line, the connecting pipe is connected between the first width pipe and the second width pipe, the adsorption hole on one side is connected to the first width pipe, and the adsorption hole on the other side is connected to the second width pipe.

5. The optical fiber cutting tool according to claim 1, characterized in that: A plurality of the straight fiber slots are provided with loading openings on the upper sides.

6. The optical fiber cutting tool according to claim 1, characterized in that: The second ends of the plurality of straight fiber slots are arranged to penetrate along the horizontal direction.

7. The optical fiber cutting tool according to claim 1, characterized in that: The placement straight groove is provided with a placement opening on the top, and the optical fiber cutting tool also includes a pressing plate, and the pressing plate covers a portion of the placement opening.

8. The optical fiber cutting tool according to claim 1, characterized in that: The optical fiber cutting tool also includes a cutting knife, and the cutting knife cuts into the cutting straight groove from the cutting opening.

9. The optical fiber cutting tool according to any one of claims 1 to 8, characterized in that: Each of the straight fiber slots has a cutting length from the emitting end to the cutting straight slot, and the cutting lengths of two adjacent straight fiber slots have the same length difference.

10. A cutting method applied to the optical fiber cutting tool as claimed in any one of claims 1 to 9, characterized in that: The cutting method comprises: Placing a multi-core optical fiber into the placement straight groove, placing a single-core optical fiber of the multi-core optical fiber into one of the straight fiber grooves, and allowing a plurality of the single-core optical fibers to pass through the cutting straight groove; The adsorption hole adsorbs and fixes the single-core optical fiber; A cutting knife is used to cut from the cutting opening into the cutting straight groove, and the cutting knife cuts off a plurality of the single-core optical fibers.

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