CN115327700B - Method of aligning optical fiber filaments and method of manufacturing optical fiber components - Google Patents

Abstract

The invention relates to a method for arranging optical fiber and a method for preparing optical fiber components. The arrangement method comprises the following steps: 1) Drawing the multifilament rod for N times to obtain N multifilament rods, wherein N is an integer greater than or equal to 1; 2) Checking multifilament for N times; if the N multifilaments have a defect and the defect is acceptable, marking one end of the N multifilaments; 3) Arranging the N multifilaments into N+1 multifilament rods; the arrangement is to put untagged N multifilaments in a mold without distinguishing the directions, and put the tagged N multifilaments in the mold so that the tags face the same direction. The technical problem to be solved is how to digest and apply the multifilament with certain defects, so that the quality of the optical fiber yarn prepared by the multifilament is not affected, the material waste during the waste of unqualified products can be greatly reduced, and the optical fiber component with qualified performance can be obtained, thereby being more practical.

Description

Method for aligning optical fiber filaments and method for manufacturing optical fiber components

technical field

The invention belongs to the technical field of optical fiber manufacture, and in particular relates to an arrangement method of optical fiber filaments and a preparation method of optical fiber components.

Background technique

The preparation of optical fiber components in the prior art generally includes the drawing of optical fiber monofilaments, primary multifilaments, and secondary multifilaments. In the process of multiple drawing of optical fibers, it often occurs that the dimensions of opposite sides of the optical fiber are not equal, or there are defects such as wire bends and wire twists on the surface of the optical fiber. If the optical fiber filaments with the above defects are also arranged when the multifilament rods are arranged, it will often have a great impact on the internal structure of the subsequent optical fiber filaments, and then affect the internal quality of the optical fiber components. However, if the optical fiber filament is discarded when it is found to have the above-mentioned defects during inspection, it will cause a huge waste of cost.

Contents of the invention

The main purpose of the present invention is to provide a method for arranging optical fiber filaments and a method for preparing optical fiber components. The technical problem to be solved is how to digest and apply multifilaments with certain defects, so that the optical fiber filaments prepared by them The product quality is not affected in any way, not only can greatly reduce the waste of materials when the unqualified products are discarded, but also can obtain qualified optical fiber components, which is more suitable for practical use.

The purpose of the present invention and the solution to its technical problems are achieved by adopting the following technical solutions. According to a method for arranging optical fiber filaments proposed by the present invention, it comprises the following steps:

1) N times of multifilament rod drawing, to obtain N times of multifilament, wherein N is an integer greater than or equal to 1;

2) N-time multifilament inspection; if the N-time multifilament has a defect and the defect is acceptable, mark one end of the N-time multifilament;

3) Arranging N times of multifilaments into N+1 times of multifilament rods; said arrangement refers to stacking unmarked N times of multifilaments into the mold without distinguishing directions, and placing the marked N times of multifilaments into said Marks are deposited into the mold facing the same direction.

The purpose of the present invention and its technical problems can also be further realized by adopting the following technical measures.

Preferably, the aforementioned arrangement method, wherein the inspection includes measuring the distance between each set of opposite sides of the N-times multifilaments, and measuring the surface state of each of the N-times multi-filaments.

Preferably, the aforementioned arrangement method, wherein the distance between each group of opposite sides of the N times of multifilaments is measured using an instrument with a measurement accuracy of 0.001 mm; or, the measurement of each of the N times of multifilaments The surface condition is tested under lighting in a class 100 dust-free environment.

Preferably, the aforementioned arrangement method, wherein the criterion for judging that the defect is acceptable includes the difference between the measured distance between each pair of opposite sides and the standard distance between each pair of opposite sides is 0.005 mm to 0.03 mm.

Preferably, the aforementioned arrangement method, wherein the criteria for judging that the defect is acceptable includes that there is a wire bend on the surface of the N times of multifilament and the degree of the wire bend is ≤ 3mm; the detection method of the wire bend is as follows: the N times of the multifilament Place it on a flat plane, adjust the cross light source so that the two ends of the N-time multifilament are located on one of the linear light sources; if the N-time multifilament as a whole does not coincide with the linear light source, it indicates that the N-time multifilament has a wire bend; N-time multifilament The distance between the midpoint of the multifilament and the linear light source indicates the degree of bending of the filament.

Preferably, the aforementioned arrangement method, wherein the criteria for judging that the defect is still acceptable includes the presence of twists on the surface of N times of multifilaments and the degree of twists is 5° to 10°; the detection method of the twists is as follows: The N-time multifilament and the standard wire are placed on the same plane, and one end of the N-time multifilament is adjacent to the standard wire, and the angle difference between the N-time multifilament and the other end of the standard wire indicates the degree of twist of the wire; the angle difference is ≥ 5° It is wire twist; the angle difference of 5°～10° is wire twist defect, which is acceptable.

Preferably, in the aforementioned arrangement method, the marking on one end of the N-times multifilaments is to make symbols on the side of the N-times multifilaments with defects.

Preferably, the aforementioned arrangement method, wherein the marking at one end of the N-time multifilament is to make a bevel at one end of the N-time multifilament; the edge formed by the bevel and the side with the defect is perpendicular to the N-time The axis of the multifilament.

The purpose of the present invention and the solution to its technical problems are also achieved by the following technical solutions. According to the preparation method of an optical fiber component proposed by the present invention, it includes the steps of one multifilament arrangement, ..., N times of multifilament arrangement; wherein, N is an integer greater than or equal to 1; The N times of multifilament arrangement steps are as follows:

1) N times of multifilament rod drawing to obtain N times of multifilament;

2) N-time multifilament inspection; if the N-time multifilament has a defect and the defect is acceptable, mark one end of the N-time multifilament;

3) Arranging N times of multifilaments into N+1 times of multifilament rods; said arrangement refers to stacking unmarked N times of multifilaments into the mold without distinguishing directions, and placing the marked N times of multifilaments into said Marks are deposited into the mold facing the same direction.

The purpose of the present invention and its technical problems can also be further realized by adopting the following technical measures.

Preferably, in the aforementioned preparation method, the optical fiber component includes at least one of an optical fiber inverter, an optical fiber panel, and an optical fiber cone.

By virtue of the above technical solutions, the present invention proposes a method for arranging optical fiber filaments and a method for preparing optical fiber components that have at least the following advantages:

The method for arranging the optical fiber filaments proposed by the present invention is to mark the multifilaments with certain defects but not large defects and arrange them in the multifilament rod in a certain way, so that it can achieve defect-free The product quality that can be achieved by multifilament greatly reduces the cost and waste of using it as waste silk. In the technical solution of the present invention, by making marks at the specific positions of the N times of multifilaments with defects (not up to the qualified standard, but able to meet the relaxed standard), so that the operator can accurately identify the position and direction of the defect. When the N times of multifilaments are arranged in the N+1 times of multifilament rods, all the defective surfaces are arranged in the same direction; the reason why the arrangement method can produce qualified products is that the defective When the surfaces are all arranged in the same direction, the defect surface of the adjacent N times of multifilament rods will not directly abut the defect surface, so that all N times of multifilament rods can be drawn during N+1 times of multifilament rods. It is perfectly welded as a whole, and there will be no defect that the defect surface is facing the defect surface, and it is difficult to weld the N times of multifilaments into one.

The above description is only an overview of the technical solutions of the present invention. In order to understand the technical means of the present invention more clearly and implement them according to the contents of the description, the preferred embodiments of the present invention will be described in detail below.

Detailed ways

In order to further explain the technical means and effects of the present invention to achieve the intended purpose of the invention, below in conjunction with the preferred embodiments, a method for arranging optical fiber filaments and a method for preparing optical fiber components according to the present invention will be described in detail. Embodiments, structures, features and effects thereof are described in detail below.

The preparation process of optical fiber filaments includes drawing rod tubes into optical fiber monofilaments, arranging monofilaments into primary multifilament rods, drawing primary multifilament rods into primary multifilament rods, and arranging primary multifilament rods into secondary multifilament rods ,..., drawing N times of multifilament rods into N times of multifilaments, and arranging N times of multifilaments into N+1 times of multifilament rods. The method for arranging optical fiber filaments of the present invention aims to control the arrangement process of arranging primary multifilaments into secondary multifilament rods, ..., arranging N times of multifilaments into N+1 times of multifilament rods in the above steps.

The present invention proposes a method for arranging optical fiber filaments, which comprises the following steps:

Firstly, the multifilament rod is drawn N times to obtain N times multifilament, wherein N is an integer greater than or equal to 1. This step is not different from the drawing process of optical fiber filaments in the prior art, and will not be specifically introduced in this patent.

The second is the inspection of the N-time multifilaments; if the N-time multifilaments have defects and the defects are acceptable, mark one end of the N-times multifilaments. For the quality inspection of N multifilaments, the inspection items mainly include inspection of the opposite side dimensions of N multifilaments and inspection of the quality of N multifilament surfaces.

For the inspection of the dimensions of the opposite sides of the multifilaments of N times, generally, a length inspection instrument with an accuracy of 0.001 mm, such as a caliper (micrometer), can be used for inspection. The present invention sets double standards for the dimension across sides of N times of multifilaments, one of which is the qualified standard for the normal execution of product production, so as to judge whether there is a defect in the opposite side dimensions of N times of multifilaments; if the N times of multifilaments If the size of the opposite side of the wire meets the qualification standard, the inspection item is qualified, indicating that the N-time multi-filament can be transferred to the next process normally; another standard is that although the N-time multi-filament has defects, the severity of the defect is acceptable Overcoming the relaxation standard of the quality of the final product through the arrangement method of the present invention; if the opposite side dimensions of the N times of multifilaments meet the relaxation standard, then the inspection item is defective and the defect is acceptable , at this time, it is necessary to mark one end of the N times of multifilaments, and then transfer the N times of multifilaments to the next process; If the standard is relaxed, the N times of multifilament will be treated as waste silk.

In a specific embodiment of the present invention, the qualified standard for N times multifilament is that the difference between the measured distance between opposite sides and the standard distance between opposite sides is ≤0.005mm; the relaxation standard for N times multifilament It is the difference between the measured distance between the opposite sides and the standard distance between the opposite sides ≤ 0.03mm; it can be concluded that there is a defect in the size of the opposite side of the N times multifilament in the technical solution of the present invention and the defect An acceptable standard is that the difference between the measured distance between the opposite sides of the N times multifilament and the standard distance between the opposite sides is 0.005 mm to 0.03 mm.

The quality of the N-times multifilament surface is usually inspected under lighting in a class 100 dust-free environment. The quality of the N-times surface yarn mainly includes wire bends and twists.

For the wire bend on the surface of the N-times multifilament, the detection method is as follows: compare the N-times multi-filament to be tested with the standard yarn (the standard yarn refers to the yarn that has not been twisted). Place the N-time multifilament to be tested together with the standard yarn on a flat surface, then turn on the cross laser light source, and adjust the relative positional relationship between the cross laser light source and the N-time multifilament so that both ends of the N-time multifilament fall on the On one of the linear light sources of the cross laser light source. Then observe whether the whole of the N times multifilament coincides with the linear light source. If the whole of N times of multifilament coincides with the linear light source, it indicates that the N times of multifilament is qualified, and it can be transferred to the next process normally; If the vertical distance between the midpoint position of the multifilament and the linear light source is ≤ 3mm, it indicates that although the N times multifilament has a wire bending defect, the severity of the defect can still be overcome by the arrangement method of the present invention without affecting To the quality of the final product, the inspection item is defective and the defect is acceptable. At this time, it is necessary to mark one end of the N times of multifilament, and then transfer the N times of multifilament to the next process; if N If the vertical distance between the midpoint position of the secondary multifilament and the linear light source is greater than 3 mm, the N secondary multifilament will be treated as waste filament. It can be concluded that, in the technical solution of the present invention, there is a wire bend defect on the surface of N times of multifilaments, and the acceptable standard for the wire bend defect is that the degree of wire bend is ≤3mm.

For the twist of the N-time multifilament surface, the detection method is as follows: compare the N-time multifilament to be tested with the standard yarn (the standard yarn refers to the yarn without twisting). Place the N-time multifilaments to be tested together with the standard filaments on a flat plane, so that one end of the two multifilaments is adjacent to each other, and use an angle ruler and a hand-held 10X microscope to observe whether the other end faces of the two multifilaments are damaged. The angular change in the circumferential direction. If there is no angular change in the circumferential direction on the other end faces of the two multifilaments, or if the angular change in the circumferential direction occurs on the other end faces of the two multifilaments, but the angle change is ≤ 5°, this is the N-time multifilament surface The eligibility standard for the non-twisted filaments indicates that no twisted filaments have occurred in the N times of multifilaments at this time, and the N times of multifilaments are qualified and can be transferred to the next process normally; The angle change in the circumferential direction is > 5°, that is, the surface of the N multifilament has a twist defect. At this time, if the other end faces of the two multifilaments have an angle change in the circumferential direction ≤ 10°, then Although the N times of multifilaments have defects, the severity of the defects can still be overcome by the arrangement method of the present invention, and the quality of the final product will not be affected. This inspection belongs to the existence of defects and the defects are acceptable. Mark one end of the N-time multifilament, and then transfer the N-time multifilament to the next process; if the other end faces of the two multifilaments have an angular change in the circumferential direction > 10°, the N-time multifilament Multifilament will be treated as waste. It can be concluded that, in the technical solution of the present invention, there are wire twist defects on the surface of N times of multifilaments, and the acceptable standard for the wire bend defects is that the degree of wire twist is 5°-10°.

In the above technical solution, the marking on one end of the N-time multifilament can be realized in any form capable of making marks on the glass surface in the prior art.

In a specific embodiment of the present invention, a carving knife can be used to engrave marks on the defective surface, or a marking pen can also be used to draw marks on the defective surface. However, on the one hand, the above-mentioned method of making marks is inconvenient to make marks, on the other hand, when the multifilaments are arranged into multifilament rods, the degree of recognition of the marks is not high, which may affect the production efficiency.

In order to improve the identification degree of the mark to improve the production efficiency, and also for the convenience of operators to arrange the multifilaments, in a specific embodiment of the present invention, the marking at one end of the N times multifilaments is to mark at one end of the N times multifilaments Making a bevel; the edge formed by the bevel and the side with the defect is perpendicular to the axis of the N-time multifilament.

The manufacturing method of the slope can be realized in any form in the prior art that can cut a slope on the glass surface. In a specific embodiment of the present invention, a glass knife can be used to draw the imprint of each side of the slope on one end of the N-time multifilament, and then gently break it along the imprint. Its mechanism is similar to that of glass in real life. Cut the same.

Finally, the N times of multifilaments are arranged into N+1 times of multifilament rods; the arrangement means that the unmarked N times of multifilaments are placed in the mold regardless of the direction, and the marked N times of multifilaments are used The marks are stacked into the mold facing the same direction. This step is also the key point of N-times multifilament arrangement in the present invention, by marking N-times multi-filaments with certain defects but not large defects and arranging them in N+1 times in such a way that the marks face the same direction In the multifilament rod, the defect surface of the adjacent N multifilament rods will not be directly connected to the defective surface, so that all N times of multifilament rods can be perfectly welded during the N+1 multifilament rod drawing process As a whole, there will be no defect that the defective surface directly butts the defective surface, and it is difficult to weld the N times of multifilaments into one; the above-mentioned technical solution of the present invention can relax the quality control of N times of multifilaments from the qualified standard to the defect The acceptable relaxation standard greatly reduces the generation of waste silk, and has great economic benefits; meanwhile, although the above-mentioned technical scheme of the present invention relaxes the quality control standard of N times multifilament to the relaxed standard, the present invention Through the specially set arrangement process, that is, the combined process of "marking the defective wires with relaxed standards" + "arranging the marks in the same direction", the quality of the optical fiber components manufactured by it will not be reduced, and the product The quality can not only reach the product quality that can be achieved by non-defective N times multifilament, but also greatly reduce the cost waste of using it as waste silk.

The present invention also proposes a method for preparing optical fiber components, which includes the steps of one multifilament arrangement, ..., N multifilament arrangements; wherein, N is an integer greater than or equal to 1; The N times multifilament arrangement steps are as follows:

1) N times of multifilament rod drawing to obtain N times of multifilament; this step is not different from the drawing process of optical fiber filaments in the prior art, and will not be specifically introduced in this patent.

2) N times of multifilament inspection; if there is a defect in the N times of multifilament and the defect is acceptable, then mark one end of the N times of multifilament; this step is no different from the aforementioned technical solution, here No longer.

3) Arranging N times of multifilaments into N+1 times of multifilament rods; said arrangement refers to stacking unmarked N times of multifilaments into the mold without distinguishing directions, and placing the marked N times of multifilaments into said The marks are stacked into the mold facing the same direction; this step is not different from the aforementioned technical solution, and will not be repeated here.

The optical fiber component prepared by the above technical solution includes at least one of an optical fiber inverter, an optical fiber panel and an optical fiber taper.

The optical fiber inverter, optical fiber panel or optical fiber taper prepared by the technical scheme of the present invention artificially creates an oblique section outside the effective area of the fiber filament, and uses this feature to distinguish dimensional errors, filament bends and filaments. Twist the direction of defects such as twisting, and then keep the oblique cross-section of the fibers arranged in one direction, which fully ensures the consistency of each fiber and stacks them, so that the quality control standard for N times of multifilament inspection can be relaxed from the qualified standard to the relaxed standards, greatly reducing the generation of waste wires, and avoiding the defect surface facing the defect surface through the wire arrangement process, effectively controlling the internal structure between the fiber filaments, and improving the qualification rate of the above-mentioned various optical fiber products.

The present invention will be further described below in conjunction with specific embodiment, but can not be interpreted as the restriction to protection scope of the present invention, some non-essential improvements and adjustments that those skilled in the art make to the present invention according to the content of the above-mentioned present invention still belong to this invention. protection scope of the invention.

Unless otherwise specified, the materials, reagents, etc. involved in the following are commercially available products well known to those skilled in the art; unless otherwise specified, the methods described are all methods known in the art. Unless otherwise defined, the technical terms or scientific terms used should have the usual meanings understood by those of ordinary skill in the art to which the present invention belongs.

Examples and comparative examples

First draw the monofilament, the diameter of the monofilament is 2mm; then the monofilament is arranged as a hexagonal primary multifilament rod, and the distance between the opposite sides of the primary multifilament rod is 15.86mm; the primary multifilament rod is drawn as The primary multifilament, the distance between the opposite sides of the primary multifilament is 1mm; then the primary multifilament is arranged as a hexagonal secondary multifilament rod, and the distance between the opposite sides of the secondary multifilament rod is 21.94mm; The secondary multifilament rod is drawn into secondary multifilament, and the distance between the opposite sides of the secondary multifilament is 1mm; then the secondary multifilament is arranged into a hexagonal slab so that the distance between the opposite sides is 32.33 mm.

The qualified standard for the above-mentioned primary multifilament and secondary multifilament is that the opposite sides of the three groups are all 1mm±0.005mm, and the surface of the filament is not bent or twisted (the twist angle of the filament is <5°). The filaments selected according to this standard Defined as Class I silk. The waste wire rate when picking wire according to this standard is about 50%.

The relaxed standards for the above-mentioned primary multifilament and secondary multifilament are that the opposite sides of the three groups are 1mm±0.005mm～0.03mm respectively, or the wire bend of the surface wire is less than 3mm, or the wire twist of the surface wire is 5°～10°, The silk picked out according to this standard is defined as Class II silk. The waste silk rate when picking wire according to this standard is about 30%, and the waste silk rate has reduced by 20%.

Arrange multifilament rods to manufacture products according to the following process:

1. All the products are manufactured with Class I wire arrangement, and the prepared products. After checking its shearing, grid, resolution, and internal quality, all products are qualified.

2. All the products are made of class II wires. According to the technical solution of the present invention, slope marks are made on one end of the type II wires, and all the slopes are arranged in the same direction when arranging. After checking the cut, mesh, resolution, internal quality, all products are all qualified.

3. Products made of 50% Class I filaments and 50% Class II filaments. Class I filaments are randomly arranged, and Class II filaments are marked with slopes at one end of Class II filaments according to the technical solution of the present invention. When arranging, all the slopes face the same direction. aligned in one direction. After checking its shearing, grid, resolution, and internal quality, all products are qualified.

4. All products are made of random arrangement of Class II wires. After checking its cutting, grid, resolution, and internal quality, only 56% of the products are qualified in all items.

5. 50% type I filament and 50% type II filament are randomly arranged to make products. After checking its cutting, grid, resolution, and internal quality, only 78% of the products are qualified in all items.

The technical features in the claims of the present invention and/or the description can be combined, and the combination is not limited to the combination obtained by reference in the claims. The technical solution obtained by combining the technical features in the claims and/or the description is also within the protection scope of the present invention.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention still belong to the present invention. within the scope of the technical solution of the invention.

Claims (10)

1. A method of arranging optical fiber filaments, comprising the steps of:

1) Drawing the multifilament rod for N times to obtain N multifilament rods, wherein N is an integer greater than or equal to 1;

2) Checking multifilament for N times; if the N multifilaments have a defect and the defect is acceptable, marking one end of the N multifilaments;

3) Arranging the N multifilaments into N+1 multifilament rods; the arrangement means that N multifilaments which are not marked are put into a mould in a non-distinguishing direction, the N multifilaments which are marked are put into the mould in a way that the marks face the same direction, and all surfaces with defects are arranged in the same direction.

2. An arrangement according to claim 1, wherein said inspection comprises measuring the distance between each set of opposite sides of N multifilaments and measuring the surface condition of each of said N multifilaments.

3. The arrangement according to claim 2, wherein the distance between each set of opposite sides of the N multifilaments is measured using an instrument having a measurement accuracy of 0.001 mm; alternatively, the surface condition of each of the N multifilaments is measured under light illumination in a hundred-class dust-free environment.

4. The arrangement of claim 1, wherein the criterion for acceptable defectivity includes a difference between a measured distance between each set of opposite sides and a standard distance between each set of opposite sides of 0.005mm to 0.03mm.

5. The arrangement according to claim 1, wherein the criterion for acceptable defect comprises that the surface of the N multifilaments has a degree of filament bending of 3mm or less; the detection method of the wire bending comprises the following steps: placing the N multifilament yarns on a flat plane, and adjusting the cross light source to enable two ends of the N multifilament yarns to be positioned on one linear light source; if the whole of the N multifilaments is not overlapped with the linear light source, indicating that the N multifilaments have filament bending; the distance between the midpoint of the N multifilaments and the linear light source indicates the degree of filament bending.

6. The arrangement of claim 1, wherein the criterion for acceptable defect comprises the presence of a twist on the surface of the N multifilaments and the degree of twist is between 5 ° and 10 °; the detection method of the thread twist comprises the following steps: placing the N multifilaments and the standard yarn on the same plane, wherein the N multifilaments are adjacently arranged with one end of the standard yarn, and the angle difference between the N multifilaments and the other end of the standard yarn represents the degree of yarn torsion; the angle difference is equal to or more than 5 degrees and is the screw torque; the angle difference is 5-10 degrees, which is acceptable for the defect of thread twist.

7. An arrangement according to claim 1, characterized in that the marking at one end of the N multifilaments is made as a symbol on the side of the N multifilaments where the defect is present.

8. The arrangement of claim 1, wherein the marking at one end of the N multifilaments is performed as a bevel at one end of the N multifilaments; the ribs formed by the inclined surfaces and the defective side surfaces are perpendicular to the axis of the N multifilaments.

9. A method of making an optical fiber component comprising the steps of once multifilament arrangement, once multifilament arrangement. Wherein N is an integer greater than or equal to 1; the N multifilament arranging steps are as follows:

1) Drawing the multifilament rod for N times to obtain N multifilament;

2) Checking multifilament for N times; if the N multifilaments have a defect and the defect is acceptable, marking one end of the N multifilaments;

3) Arranging the N multifilaments into N+1 multifilament rods; the arrangement means that N multifilaments which are not marked are put into a mould in a non-distinguishing direction, the N multifilaments which are marked are put into the mould in a way that the marks face the same direction, and all surfaces with defects are arranged in the same direction.

10. The method of manufacturing according to claim 9, wherein the optical fiber component comprises at least one of an optical fiber inverter, an optical fiber panel, and an optical fiber taper.