CN212476550U

CN212476550U - Preparation system of metal plating layer optical fiber

Info

Publication number: CN212476550U
Application number: CN202020607472.4U
Authority: CN
Inventors: 郑羽; 江昕; 付晓松; 邹琪琳
Original assignee: Aifeibo Ningbo Optoelectronic Technology Co ltd
Current assignee: Aifeibo Ningbo Optoelectronic Technology Co ltd
Priority date: 2020-04-21
Filing date: 2020-04-21
Publication date: 2021-02-05
Anticipated expiration: 2030-04-21

Abstract

The utility model discloses a preparation system of metal plating layer optical fiber, which comprises an optical fiber drawing tower system and an electroplating system, wherein the optical fiber drawing tower system comprises a prefabricated rod feeding device, a high temperature furnace, a coating and solidifying device, an optical fiber steering guide wheel, a main traction system and a dancing wheel, the main traction system is provided with a main optical fiber traction wheel, the electroplating system is provided with an electroplating liquid tank and two optical fiber contact wheels, the prefabricated rod feeding device provides the optical fiber prefabricated rod for the high temperature furnace, the high temperature furnace leads the optical fiber prefabricated rod to be melted into filaments to form bare optical fibers, the coating and solidifying device leads the outer surfaces of the bare optical fibers to be coated with conductive materials and solidified to form optical fibers with conductive coatings, and the optical fibers enter the main traction system after passing through, the main optical fiber traction wheel changes the diameter of the optical fiber with the conductive coating to obtain a thin optical fiber, and the thin optical fiber enters an electroplating system after passing through a dancing wheel, so that electroplating solution is electroplated on the outer surface of the thin optical fiber to form a metal electroplated layer optical fiber; its advantages are simple process, low cost and long continuous production length.

Description

Preparation system of metal plating layer optical fiber

Technical Field

The utility model relates to a preparation technique of optic fibre especially relates to a preparation system of metal plating layer optic fibre.

Background

Optical fiber is short for optical fiber, and is the main medium for communication at present. The process for producing optical fibers mainly comprises preform preparation and fiber drawing, in which the coating of the protective layer material is a major process step that forms the coating of the optical fiber.

The coating of the optical fiber is the outermost structure of the optical fiber. When the glass optical fiber is drawn by the preform, in order to prevent the glass optical fiber from being polluted by dust and protect the bare optical fiber from being lost, thereby realizing higher mechanical strength, a layer of elastic coating cured by ultraviolet light is adopted in the common process. The elastomeric coating is typically composed of an acrylate or silicone rubber, or the like.

With the expansion of the application environment of the optical fiber, the common optical fiber cannot adapt to the use condition of a special environment. Especially, under a high-temperature working environment, a common ultraviolet light cured coating is easy to be subjected to thermal aging and thermal oxidative aging, so that the protective effect of the coating on the optical fiber is reduced, and the optical fiber can be finally failed. In order to cope with this situation, optical fiber manufacturers at home and abroad have developed high temperature resistant optical fibers. At present, the main international mainstream high-temperature resistant optical fibers are as follows: the high temperature resistant acrylic resin coated optical fiber, the organic silica gel coated optical fiber, the polyimide coated optical fiber and the metal coated optical fiber.

The metal-coated optical fiber has the advantages that: different types of metal coatings can be replaced, and the coating can bear the high temperature of more than 1000 ℃ at most corresponding to different high and low temperature application environments; the thermal expansion coefficient of the metal coating is low and is basically in the same order of magnitude as that of the optical fiber; the metal coating has the best corrosion resistance and stress resistance, has the best low-temperature resistance, and can continuously work at the temperature of 269 ℃ below zero; the metal coating is tightly combined with the cladding of the optical fiber, and the mechanical strength is high; the metal coating has good fatigue resistance, water resistance and hydrogen resistance; the metal coating can be used for metal welding.

The coating process of the metal coating of the traditional metal-coated optical fiber is complex, accurate sputtering furnace power, reaction substance flow and optical fiber winding and unwinding speed are required, so that uniform coating can be sputtered on the outer surface of the optical fiber, and the process cost is extremely high; and the production efficiency is extremely low, and the continuous production length is only about 1 km. The metal coating is mainly made of gold, aluminum, copper and alloy, wherein the aluminum and the copper are easily oxidized in the air, which causes the quality of the coating to be reduced, and therefore, the gold or the alloy is generally used for coating. The metal coating process of the optical fiber is currently mastered in only a few countries.

Disclosure of Invention

The utility model aims to solve the technical problem that a preparation system of metal plating layer optic fibre is provided, its simple process, it is with low costs, and its continuous production length is long, and production efficiency is high.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: a preparation system of metal electroplated layer optical fiber is characterized by comprising an optical fiber drawing tower system for carrying out optical fiber drawing on an optical fiber preform to obtain thin optical fiber and an electroplating system for carrying out online continuous electroplating on the thin optical fiber, wherein the optical fiber drawing tower system consists of a preform feeding device, a high-temperature furnace, 1-5 coating and solidifying devices, an optical fiber steering guide wheel, a main traction system and a dancing wheel, the main traction system is provided with a main optical fiber traction wheel capable of adjusting drawing speed and diameter of a bare optical fiber, the electroplating system is provided with an electroplating liquid tank and two optical fiber contact wheels which are used for supporting the thin optical fiber and controlling the position of the thin optical fiber in the electroplating liquid tank, the preform feeding device provides the optical fiber preform for the high-temperature furnace, and the high-temperature furnace enables the optical fiber preform to be fused into filaments to form the bare optical fiber, the coating and curing device enables the outer surface of the bare optical fiber to be coated with a conductive material and cured to form an optical fiber with a conductive coating, the optical fiber with the conductive coating enters the main traction system after passing through the optical fiber steering guide wheel, the main optical fiber traction wheel changes the diameter of the optical fiber with the conductive coating to obtain a thin optical fiber, the dancing wheel is used for matching the speed of the main optical fiber traction wheel and the speed of the optical fiber contact wheel, the thin optical fiber enters the electroplating system after passing through the dancing wheel, and the electroplating system enables the outer surface of the thin optical fiber to be electroplated with the electroplating solution in the electroplating solution tank to form a metal electroplated layer optical fiber.

The preparation system further comprises a finished product optical fiber take-up device which is provided with a take-up reel for collecting the metal electroplated layer optical fiber.

The coating and curing device comprises a coater for coating the conductive material on the outer surface of the bare fiber and a curing furnace for curing the conductive material coated on the outer surface of the bare fiber.

The conductive material is obtained by dispersing conductive graphite in an organic solvent, and the curing treatment by the curing furnace is thermosetting treatment.

The electroplating solution is metal liquid, and the metal material in the metal liquid is one of gold, silver, aluminum, zinc, copper, chromium, nickel and palladium.

The speed of the main optical fiber traction wheel and the speed of the optical fiber contact wheel are adjustable in a linkage mode, the adjusting range is 5-100 m/min, and if the speed is adjusted to be 50 m/min.

The thickness of the conductive coating is adjustable, the adjusting range is 1-10 microns, and if the thickness is designed to be 5 microns.

The thickness of the metal electroplated layer in the metal electroplated layer optical fiber is adjustable, the adjusting range is 0.5-50 microns, and the thickness is designed to be 20 microns.

Compared with the prior art, the utility model has the advantages of:

1) the method comprises the steps of uniformly coating a conductive material on a plurality of coating and curing devices in an optical fiber drawing tower system for preparing the optical fiber and curing the conductive material, so that the obtained optical fiber with the conductive coating has the conductive property, and then uniformly electroplating a metal electroplating solution on the outermost surface of the conductive coating of the optical fiber by using an electroplating system through a traditional continuous electroplating process based on the conductive property, so that the finally obtained metal electroplated optical fiber has the characteristics of high temperature resistance and the like.

2) Because the outmost layer of the metal-plated optical fiber prepared by the preparation system is the metal-plated layer and a plurality of conductive coatings are arranged in the metal-plated optical fiber, the metal-plated optical fiber is not easy to break, and the integral tensile strength is improved.

3) The preparation system does not need precise sputtering furnace power, reaction material flow and the like in the process of preparing the metal electroplated layer optical fiber, so that the process cost is reduced; and the continuous production length of the metal electroplated optical fiber can be greatly improved, the production efficiency is greatly improved, the development of the special optical fiber industry is greatly promoted, and the expensive special optical fiber is widely applied to the application requirements of various complex environments on a large scale.

Drawings

Fig. 1 is a schematic diagram of the composition structure of the preparation system of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

The utility model provides a preparation system of metal-plated layer optic fibre, as shown in figure 1, it includes the optic fibre wire drawing tower system 1 that is used for carrying out the optic fibre wire drawing to optic fibre perform 41 and obtains thin optic fibre 44, an electroplating system 2 that is used for carrying out online continuous electroplating to thin optic fibre 44 (i.e. electroplate in succession thin optic fibre 44 at the in-process of the continuous motion of thin optic fibre 44), finished product optic fibre take-up 3, optic fibre wire drawing tower system 1 is by prefabricated excellent feeding device 11, high temperature furnace 12, coating solidification equipment 13 that quantity is 2, optic fibre turns to guide wheel 14, main traction system 15, dancing wheel 16 constitutes, main traction system 15 has main optic fibre traction wheel 151 that can adjust the wire drawing speed and adjust bare fiber 42 diameter, electroplating system 2 has an electroplating liquid groove (not shown in the figure) and two optic fibre contact wheels 21 that are used for supporting thin optic fibre 44 and are used for controlling the position of thin optic fibre 44 in the electroplating liquid groove, the finished optical fiber take-up device 3 is provided with a take-up reel 31; the preform feeding device 11 provides the optical fiber preform 41 to the high temperature furnace 12, the high temperature furnace 12 fuses the optical fiber preform 41 into a filament to form a bare optical fiber 42, the coating and curing device 13 coats a conductive material on the outer surface of the bare optical fiber 42 and cures the conductive material to form an optical fiber 43 with a conductive coating, the optical fiber 43 with the conductive coating enters the main traction system 15 after passing through the optical fiber steering guide wheel 14, the main optical fiber traction wheel 151 changes the diameter of the optical fiber 43 with the conductive coating to obtain a thin optical fiber 44, the dancing wheel 16 is used for matching the speed of the main optical fiber traction wheel 151 with the speed of the optical fiber contact wheel 21, the thin optical fiber 44 enters the electroplating system 2 after passing through the dancing wheel 16, the electroplating system 2 forms a metal-plated optical fiber 45 after electroplating solution in an electroplating solution tank on the outer surface of the thin optical fiber 44, and the metal-plated optical fiber 45 is collected.

In this embodiment, the coating and curing device 13 includes an applicator 131 for coating the conductive material on the outer surface of the bare fiber 42 and a curing furnace 132 for curing the conductive material coated on the outer surface of the bare fiber 42.

In this embodiment, the conductive material is obtained by dispersing conductive graphite in an organic solvent, and the curing process performed by the curing oven 132 is a thermosetting process; the electroplating solution is a metal solution, and the metal material in the metal solution is one of gold, silver, aluminum, zinc, copper, chromium, nickel and palladium.

In this embodiment, the speed of the main optical fiber traction wheel 151 and the speed of the optical fiber contact wheel 21 are adjustable in a linkage manner, and the adjustment range is 5-100 m/min, for example, the speed is adjusted to 50 m/min.

In the embodiment, the thickness of the conductive coating is adjustable, and the adjustment range is 1-10 micrometers, for example, the thickness is designed to be 5 micrometers; the thickness of the metal plating layer in the metal-plated optical fiber 45 is adjustable, and the adjustment range is 0.5-50 microns, for example, the thickness is designed to be 20 microns.

The preform feeding device 11, the high temperature furnace 12, the applicator 131, the curing furnace 132, the fiber turning guide wheel 14, the main traction system 15, the dancing wheel 16, the electroplating system 2 and the finished product fiber take-up device 3 all adopt the prior art; the technology for melting the optical fiber perform 41 into filaments by using the high-temperature furnace 12 to form the bare optical fiber 42 adopts the prior art; the process of applying the conductive material on the outer surface of the bare fiber 42 using the applicator 131 employs the prior art; the process of performing the thermosetting treatment of the conductive material coated on the outer surface of the bare fiber 42 using the curing furnace 132 is performed using the prior art; the technique of changing the diameter of the optical fiber 43 having a conductive coating using the fiber-diverting guide wheel 14 in the main traction system 15 employs the prior art; the technique of electroplating the thin optical fiber 44 using the electroplating system 2 is known in the art.

Claims

1. A preparation system of metal electroplated layer optical fiber is characterized by comprising an optical fiber drawing tower system for carrying out optical fiber drawing on an optical fiber preform to obtain thin optical fiber and an electroplating system for carrying out online continuous electroplating on the thin optical fiber, wherein the optical fiber drawing tower system consists of a preform feeding device, a high-temperature furnace, 1-5 coating and solidifying devices, an optical fiber steering guide wheel, a main traction system and a dancing wheel, the main traction system is provided with a main optical fiber traction wheel capable of adjusting drawing speed and diameter of a bare optical fiber, the electroplating system is provided with an electroplating liquid tank and two optical fiber contact wheels which are used for supporting the thin optical fiber and controlling the position of the thin optical fiber in the electroplating liquid tank, the preform feeding device provides the optical fiber preform for the high-temperature furnace, and the high-temperature furnace enables the optical fiber preform to be fused into filaments to form the bare optical fiber, the coating and curing device enables the outer surface of the bare optical fiber to be coated with a conductive material and cured to form an optical fiber with a conductive coating, the optical fiber with the conductive coating enters the main traction system after passing through the optical fiber steering guide wheel, the diameter of the optical fiber with the conductive coating is changed by the main optical fiber traction wheel to obtain a thin optical fiber, the thin optical fiber enters the electroplating system after passing through the dancing wheel, and the electroplating system enables the outer surface of the thin optical fiber to be electroplated with electroplating solution in the electroplating solution tank to form a metal electroplated layer optical fiber.

2. The system of claim 1, further comprising a take-up reel for collecting the metal-coated optical fiber.

3. The system for preparing an optical fiber having a metal-plated layer according to claim 1 or 2, wherein the coating and curing means includes an applicator for applying the conductive material on the outer surface of the bare fiber and a curing furnace for curing the conductive material applied on the outer surface of the bare fiber.

4. The system for manufacturing an optical fiber having a metal-plated layer according to claim 3, wherein the conductive material is obtained by dispersing conductive graphite in an organic solvent, and the curing process using the curing furnace is a thermal curing process.

5. The system for preparing an optical fiber with a metal-plated layer according to claim 3, wherein the plating solution is a metal solution, and the metal material in the metal solution is one of gold, silver, aluminum, zinc, copper, chromium, nickel, and palladium.

6. The system for preparing a metal-coated optical fiber as claimed in claim 3, wherein the speed of the main optical fiber traction wheel is adjustable in linkage with the speed of the optical fiber contact wheel, and the adjustment range is 5-100 m/min.

7. The system for preparing an optical fiber with a metal-plated layer according to claim 3, wherein the thickness of the conductive coating is adjustable within a range of 1-10 μm.

8. The system for preparing an optical fiber with a metal coating according to claim 3, wherein the thickness of the metal coating in the optical fiber with a metal coating is adjustable within a range of 0.5 to 50 μm.