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WO2022252328A1 - Appareil de revêtement de fibre optique et procédé de revêtement - Google Patents

Appareil de revêtement de fibre optique et procédé de revêtement Download PDF

Info

Publication number
WO2022252328A1
WO2022252328A1 PCT/CN2021/103988 CN2021103988W WO2022252328A1 WO 2022252328 A1 WO2022252328 A1 WO 2022252328A1 CN 2021103988 W CN2021103988 W CN 2021103988W WO 2022252328 A1 WO2022252328 A1 WO 2022252328A1
Authority
WO
WIPO (PCT)
Prior art keywords
optical fiber
light
spiral tube
liquid storage
curing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2021/103988
Other languages
English (en)
Chinese (zh)
Inventor
柳林
王振益
冷从
李华成
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing Yuyi Communication Technology Co Ltd
Original Assignee
Nanjing Yuyi Communication Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nanjing Yuyi Communication Technology Co Ltd filed Critical Nanjing Yuyi Communication Technology Co Ltd
Publication of WO2022252328A1 publication Critical patent/WO2022252328A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables

Definitions

  • the invention belongs to the field of communication optical fiber processing, in particular to optical fiber coating equipment and a coating method.
  • Optical fiber is a light-guiding element that transmits optical signals from the signal source to the receiving end. Unlike traditional electrical signals, the method of preventing electrical signal leakage can be guaranteed by air or by wrapping an insulating layer with a high resistance value on the side of the cable. Arrive at the predetermined position along the conductive wire of the cable, but the medium transmitted by the optical fiber is an optical signal, because light can also propagate in the air, so it is necessary to coat a layer of light-blocking material on the outside of the optical fiber when producing the optical fiber to avoid optical signal leakage and at the same time Strengthen the surface strength of optical fiber.
  • the existing optical fiber coating equipment is to straighten the produced optical fiber on the optical fiber production line and pass through the liquid storage tank to coat the optical fiber surface coating, and then transport the optical fiber to the curing equipment to realize the coating curing, but the actual transportation and use of the optical fiber is
  • the optical fiber is crimped, there is a problem that the continuity of the coating decreases when the optical fiber is crimped, leading to breakage or even falling off, which in turn leads to weakening or even loss of optical signals.
  • Optical fiber coating equipment is used to coat light-shielding materials on the surface of optical fibers.
  • the optical fiber coating equipment includes: a supporting device.
  • the discharge device is installed at one end of the support device.
  • the optical fiber bending device is connected with the support device and is arranged at one end of the output device for bending the optical fiber.
  • the liquid storage device communicates with the optical fiber bending device, and is used for outputting the light insulating material to the optical fiber bending device, and coating the light insulating material when the optical fiber is bent.
  • the curing device communicates with the optical fiber bending device and is used for curing the light-shielding material.
  • the receiving device communicates with the curing device and is used for receiving the optical fiber that has passed through the optical fiber bending device and the curing device in sequence.
  • the optical fiber bending device includes:
  • the spiral tube communicates with the discharge device, the liquid storage device and the curing device.
  • the liquid storage device outputs the light-insulating material into the spiral tube and keeps the light-proof material in the spiral tube within a predetermined liquid level range.
  • the casing is sheathed outside the spiral tube.
  • the spiral tube includes:
  • the helical body is a helically extended pipe
  • the feed inlet is arranged on the top side of the screw body and extends a predetermined distance toward the discharge device.
  • the liquid inlet is arranged above the end of the feed inlet close to the screw body and communicates with the liquid storage device.
  • the liquid storage device transports the light-insulating material into the spiral tube, and keeps the liquid level of the light-insulating material in the spiral tube at the liquid inlet.
  • the optical fiber and the spiral body can be contacted first.
  • the light-proof material is in contact, and the light-proof material is lubricated between the optical fiber and the spiral body to reduce friction and strain.
  • the spiral tube also includes:
  • the discharge port is arranged on one side of the bottom end of the screw body and extends a predetermined distance toward the curing device.
  • the extension direction of the discharge port forms a predetermined angle with the ground, and the light-insulating material in the spiral tube flows back from the liquid outlet to the liquid storage device.
  • the liquid outlet connected to the liquid device can make the light-shielding material on the surface of the optical fiber and the light-shielding material in the spiral tube flow back into the liquid storage device, preventing the light-shielding material from flowing directly into the curing device along with the optical fiber, and solving the problem of light-shielding material resources. waste problem.
  • the cross-sectional inner wall of the spiral tube is polygonal.
  • the cross-sectional inner wall of the spiral tube is any one of triangular, rectangular or prismatic, and by designing the cross-sectional inner wall of the spiral tube as a polygon, it can ensure that the optical fiber and the spiral tube are in line contact, reducing The friction force is improved, and the contact area between the optical fiber and the light-proof material is increased.
  • the winding power source is connected with the supporting device.
  • the receiving tray is connected with the winding power source.
  • the receiving shell is sleeved on the winding power source and the receiving tray, and connected with the supporting device.
  • the positioning component is installed at one end of the material receiving shell, and the optical fiber enters into the material receiving shell through the positioning component.
  • the central axis of the positioning assembly passes through the section of the discharge end of the spiral tube.
  • the distance between the central axis of the positioning assembly and the inner wall of the discharge end of the spiral tube is greater than the radius of the optical fiber, the central axis passes through the section of the discharge end of the spiral tube, and the distance between the central axis and the inner wall of the discharge end of the spiral tube is greater than the radius of the optical fiber.
  • the positioning component whose distance is greater than the radius of the optical fiber can ensure that the light insulating material on the surface of the optical fiber is not damaged during the stage when the optical fiber leaves the spiral tube and the receiving shell, and the light insulating material is not yet cured.
  • the positioning component is a linear bearing fixedly connected with the receiving shell.
  • the coating method based on optical fiber coating equipment comprises:
  • the liquid storage device outputs the light-shielding material to the fiber bending device, and keeps the light-shielding material in the fiber bending device within a predetermined liquid level range.
  • the receiving device pulls the optical fiber through the optical fiber bending device and curing device in sequence.
  • the optical fiber is coated with a light-shielding material while being bent in the fiber bending device.
  • the optical fiber cures the light-shielding material in the curing device.
  • Figure 1 is a schematic diagram of the assembly of the present invention.
  • the reference numerals shown in Fig. 1 to Fig. 4 are: supporting device 1, discharging device 2, optical fiber bending device 3, liquid storage device 4, curing device 5, receiving device 6, spiral tube 31, spiral body 311, feeding Port 312 , liquid inlet 313 , material outlet 314 , liquid outlet 315 , receiving case 61 , positioning assembly 62 .
  • the invention provides an optical fiber coating device and a coating method for coating a light-shielding material on the surface of an optical fiber.
  • the optical fiber coating equipment includes: a supporting device 1 , a material discharging device 2 , an optical fiber bending device 3 , a liquid storage device 4 , a curing device 5 , and a material receiving device 6 .
  • the supporting component is fixedly connected with the ground, and an electric pipeline accommodation space is also arranged in the supporting component.
  • the take-up reel connected to the source starts the discharge power source before the receiving device 6 receives the material, so as to avoid excessive pulling force on the optical fiber.
  • An optical fiber bending device 3 arranged at one end of the output device 2 and connected to the support device 1 is used for bending the optical fiber.
  • the liquid storage device 4 communicated with the optical fiber bending device 3, the liquid storage device 4 is used to output the light insulating material to the optical fiber bending device 3, and coat the light insulating material when the optical fiber is bent.
  • a curing device 5 communicated with the optical fiber bending device 3, the curing device 5 may be an ultraviolet curing machine for fixing light-shielding materials.
  • the receiving device 6 pulls the optical fiber from the discharging device 2 through the optical fiber bending device 3 and the curing device 5 to the receiving device 6, and the optical fiber is coated with light-shielding material while being bent in the optical fiber bending device 3 , the optical fiber bending assembly and the liquid storage device 4 are coated with light insulating material when the optical fiber is bent, which can increase the continuity of the light insulating material on the surface of the optical fiber, so that the optical fiber can be bent in time during transportation and use, and can also avoid the decrease in the continuity of the light insulating material It solves the problem that the light-shielding material breaks or even falls off due to the decrease in continuity.
  • the optical fiber bending device 3 includes: a spiral tube 31 and a housing.
  • the spiral tube 31 communicated with the discharge device 2, the liquid storage device 4 and the curing device 5, the liquid storage device 4 outputs the light-proof material into the spiral tube 31, and keeps the light-proof material in the spiral tube 31 at a predetermined liquid level scope.
  • the shell set outside the spiral tube 31 is used to protect the spiral tube 31 and play a role of light isolation.
  • An observation window can also be set on the side wall of the shell. It should be noted that the observation window needs to have a closed door, and the use of the observation window It is necessary to cut off the sunlight to prevent ultraviolet rays from irradiating the light-proof material in the spiral tube 31 to cause the light-proof material to solidify.
  • the optical fiber enters the helical tube 31 . If the optical fiber is directly displaced in the helical tube 31 , there will be friction between the optical fiber and the inner wall of the helical tube, which will cause the problem of straining the outer wall of the optical fiber and the inner wall of the helical tube 31 .
  • the spiral tube 31 includes: a spiral body 311 , a feed inlet 312 and a liquid inlet 313 .
  • the helical body 311 is a helically extending pipe
  • the feeding port 312 is arranged on the top side of the screw body 311 , and the feeding port 312 extends a predetermined distance toward the discharging device 2 .
  • the liquid storage device 4 transports the light-insulating material into the spiral tube 31 and keeps the liquid level of the light-insulating material in the spiral tube 31 at the liquid inlet 313 .
  • the optical fiber By arranging the liquid inlet 313 on the feed port 312, the optical fiber can be in contact with the light-proof material before contacting the screw body 311, and the light-proof material is lubricated between the fiber and the screw body 311 to reduce friction and strain.
  • the light-shielding material directly flows into the curing device 5 along with the optical fiber, there will be a waste of light-shielding material resources.
  • the spiral tube 31 further includes: a material outlet 314 and a liquid outlet 315 .
  • the discharge port 314 is arranged on one side of the bottom end of the screw body 311 , and the discharge port 314 extends a predetermined distance toward the curing device 5 .
  • the extending direction of the material outlet 314 forms a predetermined angle with the ground, and the light-proof material in the spiral tube 31 flows back into the liquid storage device 4 from the liquid outlet 315 .
  • the light-insulating material on the surface of the optical fiber and the light-insulating material in the spiral tube 31 can be returned to the storage tank.
  • the light insulating material is prevented from flowing directly into the curing device 5 along with the optical fiber, and the problem of waste of light insulating material resources is solved.
  • Keeping the light-shielding material in a flowing state in the spiral tube 31 can also prevent the light-shielding material from accumulating, aging and agglomerating.
  • the existing spiral tube 31 is mainly a glass tube with a circular cross-section for chemical tests, and the optical fiber with a circular outer wall in the cross-section abuts in the spiral tube 31 with a circular inner wall in the cross-section, causing the optical fiber
  • the friction force with the spiral tube 31 is too large, and the problem of insufficient contact between the optical fiber and the light-proof material.
  • the cross-sectional inner wall of the spiral tube 31 is polygonal.
  • the cross-sectional inner wall of the spiral tube 31 is any one of triangular, rectangular or prismatic.
  • the cross-sectional inner wall of the spiral tube 31 By designing the cross-sectional inner wall of the spiral tube 31 to be polygonal, it can ensure that the optical fiber and the spiral tube 31 are in contact with each other, reducing friction and increasing the contact area between the optical fiber and the light-shielding material.
  • the material receiving device 6 includes: a rewinding power source, a material receiving tray, a material receiving shell 61 and a positioning assembly 62 .
  • the winding power source connected with the supporting device 1.
  • the receiving tray connected with the winding power source.
  • the material receiving shell 61 is sheathed on the outside of the rewinding power source and the material receiving tray, and connected with the supporting device 1 .
  • the positioning component 62 installed at one end of the receiving case 61 , the optical fiber enters into the receiving case 61 through the positioning component 62 .
  • the central axis of the positioning assembly 62 passes through the section of the discharge end of the spiral tube 31 .
  • the distance between the central axis of the positioning assembly 62 and the inner wall of the discharge end of the spiral tube 31 is greater than the radius of the optical fiber.
  • the positioning component 62 is a linear bearing fixedly connected with the receiving shell 61 .
  • the optical fiber coating method based on the above embodiment includes: S1.
  • the liquid storage device 4 outputs the light-shielding material to the fiber bending device 3, and keeps the light-shielding material in the fiber bending device 3 within a predetermined liquid level range.
  • the receiving device 6 pulls the optical fiber through the optical fiber bending device 3 and the curing device 5 in sequence.
  • the optical fiber is coated with a light-shielding material while being bent in the optical fiber bending device 3 .
  • the optical fiber cures the light-shielding material in the curing device 5 .
  • the light-shielding material in the optical fiber bending device 3 keeps flowing and is in a state of dynamic balance, so as to avoid stagnation, aging and agglomeration of the light-shielding material.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Surface Treatment Of Glass Fibres Or Filaments (AREA)

Abstract

L'invention concerne un appareil de revêtement de fibre optique et un procédé de revêtement, se rapportant au domaine du traitement des fibres de communication. L'appareil de revêtement de fibre optique comprend : un dispositif de support (1), un dispositif de décharge (2), un dispositif de cintrage de fibre optique (3), un dispositif de stockage de liquide (4), un dispositif de durcissement (5), et un dispositif de réception (6) ; le dispositif de décharge (2) est monté à une extrémité du dispositif de support (1) ; le dispositif de cintrage de fibre optique (3) est relié au dispositif de support (1) et est disposé à une extrémité du dispositif de décharge (2) ; le dispositif de stockage de liquide (4) est en communication avec le dispositif de cintrage de fibre optique (3) ; le dispositif de durcissement (5) est en communication avec le dispositif de cintrage de fibre optique (3) ; le dispositif de réception (6) est en communication avec le dispositif de durcissement (5). L'ensemble de cintrage de fibre optique et le dispositif de stockage de liquide (4) sont utilisés pour revêtir un matériau de barrière contre la lumière lorsqu'une fibre optique est pliée, de sorte que la continuité du matériau de barrière contre la lumière sur la surface de la fibre optique puisse être augmentée, et même si la fibre optique est pliée pendant le transport et l'utilisation, la continuité du matériau de barrière contre la lumière peut être empêchée d'être réduite de manière à être rompue, ce qui permet de résoudre le problème de rupture ou même de chute provoqué par la continuité réduite du matériau de barrière contre la lumière.
PCT/CN2021/103988 2021-05-31 2021-07-01 Appareil de revêtement de fibre optique et procédé de revêtement Ceased WO2022252328A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202110600151 2021-05-31
CN202110600151.0 2021-05-31

Publications (1)

Publication Number Publication Date
WO2022252328A1 true WO2022252328A1 (fr) 2022-12-08

Family

ID=84322738

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/103988 Ceased WO2022252328A1 (fr) 2021-05-31 2021-07-01 Appareil de revêtement de fibre optique et procédé de revêtement

Country Status (1)

Country Link
WO (1) WO2022252328A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0336738A2 (fr) * 1988-04-06 1989-10-11 BICC Public Limited Company Fabrication d'un tube flexible, avec circonférence rigide pour un câble optique
US4904321A (en) * 1987-06-12 1990-02-27 Bicc Public Limited Company Manufacture of a flexible core for an optical cable
JPH07261062A (ja) * 1994-03-23 1995-10-13 Toyo Polymer Kk 光フアイバー被覆パイプおよびその製造方法
US5756206A (en) * 1995-03-15 1998-05-26 Custom Composite Materials, Inc. Flexible low bulk pre-impregnated tow
JP2003215414A (ja) * 2003-02-03 2003-07-30 Ube Nitto Kasei Co Ltd 高密度光ファイバケーブルの製造方法
US20050098342A1 (en) * 2002-12-18 2005-05-12 Itaru Sakabe Communication cable, and communication wire protecting tube

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4904321A (en) * 1987-06-12 1990-02-27 Bicc Public Limited Company Manufacture of a flexible core for an optical cable
EP0336738A2 (fr) * 1988-04-06 1989-10-11 BICC Public Limited Company Fabrication d'un tube flexible, avec circonférence rigide pour un câble optique
JPH07261062A (ja) * 1994-03-23 1995-10-13 Toyo Polymer Kk 光フアイバー被覆パイプおよびその製造方法
US5756206A (en) * 1995-03-15 1998-05-26 Custom Composite Materials, Inc. Flexible low bulk pre-impregnated tow
US20050098342A1 (en) * 2002-12-18 2005-05-12 Itaru Sakabe Communication cable, and communication wire protecting tube
JP2003215414A (ja) * 2003-02-03 2003-07-30 Ube Nitto Kasei Co Ltd 高密度光ファイバケーブルの製造方法

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